US20130233525A1 - Multi-flow passage device - Google Patents
Multi-flow passage device Download PDFInfo
- Publication number
- US20130233525A1 US20130233525A1 US13/758,663 US201313758663A US2013233525A1 US 20130233525 A1 US20130233525 A1 US 20130233525A1 US 201313758663 A US201313758663 A US 201313758663A US 2013233525 A1 US2013233525 A1 US 2013233525A1
- Authority
- US
- United States
- Prior art keywords
- flow passage
- unit
- medium
- heat exchange
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0093—Microreactors, e.g. miniaturised or microfabricated reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/028—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00788—Three-dimensional assemblies, i.e. the reactor comprising a form other than a stack of plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00851—Additional features
- B01J2219/00858—Aspects relating to the size of the reactor
- B01J2219/0086—Dimensions of the flow channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00851—Additional features
- B01J2219/00867—Microreactors placed in series, on the same or on different supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00851—Additional features
- B01J2219/00871—Modular assembly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00873—Heat exchange
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
- F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels
Definitions
- the present invention relates to a multi-flow passage device internally formed with a plurality of flow passages through which a medium is passed, like a micro-channel reactor adopted in a heat exchanger or a chemical reaction device.
- a heat pump apparatus is used as an apparatus for transferring heat from a lower temperature side to a higher temperature side.
- the heat pump apparatus is composed of a compressor, a condenser, an expansion valve, an evaporator, and a piping connecting therebetween.
- a heat exchanger (a plate-type heat exchanger) constituted in such a manner that thin heat transfer plates are stacked and a medium is passed through a gap formed between the heat transfer plates, and a heat exchanger constituted by stacking flow passage plates having a plurality of concave grooves as fluid flow passages on the surface can be adopted.
- Both heat exchangers are multi-flow passage devices internally formed with a plurality of flow passages through which a medium is passed.
- a multi-flow passage device for heat exchange is disclosed in Japanese Patent Laid-Open No. 60-71894.
- Japanese Patent Laid-Open No. 60-71894 discloses a multi-flow passage device (a plate type heat exchanger) including a plurality of plates that are abutted via gaskets to form alternate passages for a heat exchange medium therebetween and that include openings for guiding the medium to and from the passages and corrugated portions abutted to each other between the adjacent plates to form supporting points within the passages, in which at least a pair of adjacent plates at each outside end among the plurality of plates are permanently united and joined at their surroundings and around the openings and further at the supporting points between the plates.
- micro-channel reactor includes a substrate formed with grooves on the surface, and the grooves constitute fine flow passages.
- Japanese Patent Laid-Open No. 2008-168173 discloses a reaction apparatus for reacting a first reactant and a second reactant while allowing them to flow, including a flow passage structure having therein a flow passage that extends in a specific direction and allows the first reactant and the second reactant to flow in that direction, in which the flow passage includes: a first introduction passage which is arranged at an entrance side of the flow passage and into which the first reactant is introduced; a second introduction passage which is arranged apart from the first introduction passage while sandwiching a partition wall provided in the flow passage structure and into which the second reactant is introduced; a confluent passage connected to the downstream side of the first introduction passage and the second introduction passage for allowing the first reactant flowing through the first introduction passage and the second reactant flowing through the second introduction passage to meet with each other in a mutually separated laminar flow state; and a reaction flow passage connected to the downstream side of the confluent passage for allowing the laminar flow of the first
- the multi-flow passage devices disclosed in Japanese Patent Laid-Open No. 60-71894 and Japanese Patent Laid-Open No. 2008-168173 naturally have a limitation in the number of flow passages and the length of the flow passage in one flow passage plate (plate) constituting an apparatus due to the dimension of the flow passage plate itself and the manufacturing processing method of flow passage. That is, if the number of flow passages per one plate is increased, the length of the flow passage is shortened and a large amount of medium is allowed to pass, but the time during which the medium stays in the multi-flow passage device is reduced, thereby a heat exchange efficiency and a reaction efficiency may be decreased. On the other hand, if the length of the flow passage is lengthened in the plate, the number of flow passages is decreased, so that it may be difficult to pass a large amount of medium.
- Japanese Patent Laid-Open No. 60-71894 and Japanese Patent Laid-Open No. 2008-168173 described above disclose a structure of the multi-flow passage device itself, and disclose no guideline for solving the above problems.
- the present invention has an object to provide a multi-flow passage device capable of surely performing a desired treatment, such as heat exchange or chemical reaction, even to large amounts of medium.
- the present invention takes the following technical measures.
- a multi-flow passage device is constituted by stacking units for performing heat exchange or chemical reaction of the introduced medium in a thickness direction, and a flow passage for allowing the flowing medium in one unit to flow in another unit adjacent to the unit is an external flow passage provided outside of one unit and another unit.
- the external flow passage may be preferably provided in contact with the side surface of the unit.
- a redistribution means for mixing the medium flowing out of one unit and allowing the medium to be redistributed to another unit may be preferably provided.
- the redistribution means may be preferably composed of a porous plate which is disposed inside the external flow passage so as to intersect with the medium flowing direction and through which the medium is allowed to pass.
- the multi-flow passage device of the present invention With the use of the multi-flow passage device of the present invention, a desired treatment can be surely performed, in heat exchange or chemical reaction, even to large amounts of medium.
- FIG. 1 is a schematic view showing that a multi-flow passage device according to the present invention is used as a heat exchanger.
- FIG. 2 is a schematic view of a structure of the multi-flow passage device according to the present invention.
- FIGS. 3A and 3B are plan views of a flow passage plate constituting the multi-flow passage device according to the present invention taken along the line A-A in FIG. 2 .
- FIG. 4 is a schematic view showing that the multi-flow passage device according to the present invention is used as a reactor.
- a heat pump apparatus 3 will be described as a typical apparatus to which the heat exchanger 2 is mounted.
- the heat pump apparatus 3 transfers heat from a lower temperature side to a higher temperature side.
- the heat pump apparatus 3 includes a compressor 4 , a use-side heat exchanger 2 B, an expansion valve 5 , and an air heat exchanger 2 A, and the compressor 4 , the use-side heat exchanger 2 B, the expansion valve 5 , and the air heat exchanger 2 A are connected by a piping 6 .
- the piping 6 is a flow passage through which a working medium is cycled.
- the working medium in the piping 6 absorbs heat by heat transfer from the external air to a refrigerant in the air heat exchanger 2 A, evaporates to be drawn into the compressor 4 , and is compressed therein into a high temperature and pressure gas to be sent to the use-side heat exchanger 2 B. Further, the refrigerant releases heat and turns into liquid in the use-side heat exchanger 2 B, is decompressed by the expansion valve 5 and returns back to the air heat exchanger 2 A, and undergoes a phase change from a liquid to a gas.
- the heat exchanger 2 used as the air heat exchanger 2 A or the use-side heat exchanger 2 B of the above-mentioned heat pump apparatus 3 high efficiency (high heat-transfer efficiency from the working medium to the use-side medium) is required.
- high efficiency high heat-transfer efficiency from the working medium to the use-side medium
- the handling of the piping 6 is a problem and there is also a problem in securing an installation space for the heat exchangers 2 (The details are as described in the above-mentioned “DESCRIPTION OF THE RELATED ART”).
- the air heat exchanger 2 A and the use-side heat exchanger 2 B are made up of the laminated heat exchanger 2 constituted by stacking heat exchange units 7 for performing heat exchange of the introduced working medium in a thickness direction. Further, a flow passage for allowing the flowing medium in one heat exchange unit 7 to flow in another heat exchange unit 7 adjacent to the heat exchange unit 7 is an external flow passage 8 provided outside of the heat exchange units 7 .
- the air heat exchanger 2 A and the use-side heat exchanger 2 B (hereinafter collectively referred to as the heat exchanger 2 ) will be described.
- FIG. 2 shows a cross section structure of the heat exchanger 2 .
- the heat exchanger 2 includes four heat exchange units 7 (unit A-unit D) for performing heat exchange of the introduced working medium and the use-side medium, and constituted by stacking these four heat exchange units 7 in a thickness direction (the vertical direction).
- each heat exchange unit 7 may have a plate type heat exchanger structure.
- heat transfer plates heat transfer plates
- a working medium and a heat source fluid flow alternately between the heat transfer plates, whereby performing heat exchange.
- a herringbone pattern or a corrugated pattern is formed on the surface of the heat transfer plate.
- holes through which the working medium and the heat source are passed are provided.
- the heat exchanger 2 constituted by stacking flow passage plates 12 having a plurality of concave grooves as fluid flow passages 9 on the surface thereof can be adopted.
- the flow passage plate 12 is a rectangular flat plate having a thickness of several millimeters, for example, made of a metal such as stainless steel or aluminum.
- the flow passages 9 are opened at one end along the longitudinal direction as an entrance 10 for the working medium and the flow passages 9 are opened at the other end as an exit 11 for the working medium.
- the entrance 10 and the exit 11 for the working medium are formed at opposite positions along the longitudinal direction of the flow passage plate 12 . For example, as shown in FIG.
- the exit 11 for the working medium is provided in the upper left portion of the flow passage plate 12 .
- the entrance 10 for the working medium is provided in the upper right portion of the flow passage plate 12 in a plan view and the exit 11 for the working medium is provided in the lower left portion of the flow passage plate 12 .
- the plurality of flow passages 9 are formed so as to meander in a width direction of the flow passage plate 12 , and connect the entrance 10 and the exit 11 for the working medium.
- the plurality of flow passages 9 are formed approximately parallel to each other, and do not intersect with each other. Therefore, the working medium flowing in the flow passage 9 from the entrance 10 reaches the exit 11 by way of only that flow passage 9 .
- the reason the flow passages 9 meander in the width direction of the flow passage plate 12 is that it is intended to lengthen the flow passages 9 as much as possible within the limited surface. To achieve such purpose, the flow passages 9 may follow the track other than the meandering shape shown in FIGS. 3A and 3B .
- the thus configured flow passage plates 12 described above are provided as the flow passage plates 12 for working medium and the flow passage plates 12 for cooling medium (water, air) respectively. Then, the flow passage plates 12 are alternately stacked to form one heat exchange unit 7 .
- a plurality of (four) heat exchange units 7 (also called simply units) described above are provided and stacked in the thickness direction (the vertical direction). Between the respective units 7 , a partition wall plate 13 is disposed in such a manner that the working medium, the use-side medium, and the cooling medium are not mixed.
- the partition wall plate 13 has the same shape as the heat exchange unit 7 in a plan view.
- An upper wall plate 16 is provided on the upper surface of the topmost heat exchange unit 7
- a lower wall plate 17 is provided on the lower surface of the lowermost heat exchange unit 7 .
- the flow passage 9 for allowing the flowing medium (for example, working medium) in one heat exchange unit 7 to flow in another heat exchange unit 7 adjacent to the heat exchange unit 7 is arranged in the form of the external flow passage 8 provided outside of the heat exchange units 7 .
- an exit side for the working medium of the unit A and an entry side for the working medium of the unit B are set to the same side (the right side in FIG. 2 ), and an external flow passage 8 AB connecting the two in the vertical direction is provided.
- an exit side for the working medium of the unit B and an entry side for the working medium of the unit C are set to the same side (the left side in FIG. 2 ), and an external flow passage SBC connecting the two in the vertical direction is provided.
- an exit side for the working medium of the unit C and an entry side for the working medium of the unit D are set to the same side (the right side in FIG. 2 ), and an external flow passage 8 CD connecting the two in the vertical direction is provided.
- These external flow passages 8 ( 8 AB, 8 BC, 8 CD) are formed of a rectangular or semicircular sleeve-shaped pipe in a cross-sectional view, and are provided in such a manner that the open side of the semicircular sleeve-shaped pipe is in contact with the side surface of the heat exchange unit 7 (in other words, the side wall of the heat exchanger 2 ).
- the working medium passed through the unit A is introduced into the unit B placed above the unit A.
- the working medium passed through the unit B is introduced into the unit C placed above the unit B by way of the external flow passage 8 BC.
- the working medium passed through the unit C is introduced into the unit D placed above the unit C via the external flow passage 8 CD, and then the working medium discharged from the unit D flows out to the outside of the heat exchanger 2 .
- Such a heat exchanger 2 in spite of being compact, can perform heat exchange at high efficiency as is the case where four heat exchange units 7 are connected in series.
- By increasing the number of stages of the heat exchange units 7 it is possible to freely extend (set) the length of the flow passage through which the working medium is passed, so that the restriction of the length of the flow passage due to the manufacturing restrictions is eliminated. Therefore, it is possible to secure a desired heat exchange amount.
- the use-side heat exchanger 2 B of the present embodiment is provided with a redistribution means 14 for mixing the medium flowing out of one heat exchange unit 7 and allowing the medium to be redistributed to another heat exchange unit 7 , inside the external flow passage 8 .
- a porous plate 15 which is disposed inside the external flow passage 8 so as to intersect with the medium flowing direction and through which the medium is allowed to pass is adopted. More specifically, the porous plate 15 is a thin sheet provided orthogonal to the flow direction inside the external flow passage 8 , and a plurality of holes are formed in the thin sheet.
- the shape, the number, the inner diameter, the arrangement pitch or the like of the holes should be determined in consideration of the flow rate and the viscosity of the working medium, and it is preferable that the flow of the working medium is not prevented and the working medium can be stirred and mixed. It should be noted that a mesh structure can be adopted as the redistribution means 14 .
- the porous plate 15 may be provided at any position in the halfway point of the external flow passage 8 , in case of the present embodiment, the porous plate 15 is arranged in the center (the center in the vertical direction) of the flow passage 8 , and one side of the porous plate 15 is fixed in contact with the partition wall plate 13 . It should be noted that in case of a single phase such as gas and liquid, the porous plate 15 may be disposed at the exit 11 or the entrance 10 for the working medium of the heat exchange unit 7 . In addition, for example, when it is desired to distribute a gas-liquid mixed phase flow to the respective flow passages uniformly, the porous plate 15 may be disposed at the entrance 10 for the working medium of the heat exchange unit 7 .
- the working medium that flows out of one heat exchange unit 7 (for example, the unit A) and flows to the next heat exchange unit 7 (the unit B) is stirred and mixed by passing through the porous plate 15 , and is distributed uniformly to the fluid flow passages 9 formed in the unit B and flows into them.
- fluid is redistributed and uniformly mixed with the use of the porous plate 15 and the like in a header, after that continuing the reaction.
- Such an action is achieved in all of the porous plates 15 . Therefore, the working medium flows uniformly and heat exchange is performed to a maximum extent in the respective heat exchange units 7 , so that maximum efficiency as the use-side heat exchanger 2 B can be obtained.
- the micro-channel reactor 20 includes flow passage plates 12 formed with the flow passages 9 in a bellows-shape on the surface as shown in FIGS. 3A and 3B , and is constituted by stacking a plurality of flow passage plates 12 in a thickness direction.
- the flow passages 9 formed on the flow passage plates 12 are referred to as micro-channels in the technical field of the present embodiment, and they are fine flow passages around 1 millimeter in width.
- the flow passages 9 referred to as micro-channels is formed by using etching techniques such as chemical etching and the like, and its depth is around 0.4-0.6 times the flow passage width.
- FIG. 4 shows a liquid mixing apparatus 21 according to the present embodiment.
- the apparatus mixes a first and a second liquids having solubility to each other, and includes a micro-channel reactor 20 for mixing, a first liquid supply part 22 for supplying the first liquid to the micro-channel reactor 20 , and a second liquid supply part 23 for supplying the second liquid to the micro-channel reactor 20 .
- the structures shown in FIGS. 2 , 3 A and 3 B can be adopted. That is, the flow passage 9 for allowing the flowing medium in one reaction unit 24 (corresponding to the heat exchange unit 7 of the first embodiment) to flow in another reaction unit 24 adjacent to the reaction unit 24 is the external flow passage 8 provided outside of the reaction units 24 . Inside the external flow passage 8 , the redistribution means 14 , composed of the porous plate 15 and the like, for mixing the medium flowing out of one reaction unit 24 and allowing the medium to be redistributed to another reaction unit 24 is provided.
- micro-channel reactor 20 in spite of being compact, can perform chemical reaction at high efficiency as is the case where four reaction units 24 are connected in series.
- By increasing the number of stages of the reaction units 24 it is possible to freely extend (set) the length of the flow passage through which the first liquid and the second liquid are passed, so that the restriction of the length of the flow passage due to the manufacturing restrictions is eliminated. Therefore, it is possible to achieve a desired chemical reaction.
Abstract
A multi-flow passage device capable of surely performing a desired treatment, such as heat exchange or chemical reaction, even to large amounts of medium is provided.
A multi-flow passage device 1 according to the present invention is constituted by stacking units for performing heat exchange or chemical reaction of the introduced medium in a thickness direction, and a flow passage 9 for allowing the flowing medium in one unit 7 to flow in another unit 7 adjacent to the unit 7 is an external flow passage 8 provided outside of one unit 7 and another unit 7.
Description
- 1. Field of the Invention
- The present invention relates to a multi-flow passage device internally formed with a plurality of flow passages through which a medium is passed, like a micro-channel reactor adopted in a heat exchanger or a chemical reaction device.
- 2. Description of the Related Art
- Conventionally, a heat pump apparatus is used as an apparatus for transferring heat from a lower temperature side to a higher temperature side. The heat pump apparatus is composed of a compressor, a condenser, an expansion valve, an evaporator, and a piping connecting therebetween. In the evaporator or the condenser used in the heat pump apparatus, a heat exchanger (a plate-type heat exchanger) constituted in such a manner that thin heat transfer plates are stacked and a medium is passed through a gap formed between the heat transfer plates, and a heat exchanger constituted by stacking flow passage plates having a plurality of concave grooves as fluid flow passages on the surface can be adopted. Both heat exchangers are multi-flow passage devices internally formed with a plurality of flow passages through which a medium is passed.
- For example, a multi-flow passage device for heat exchange is disclosed in Japanese Patent Laid-Open No. 60-71894.
- Japanese Patent Laid-Open No. 60-71894 discloses a multi-flow passage device (a plate type heat exchanger) including a plurality of plates that are abutted via gaskets to form alternate passages for a heat exchange medium therebetween and that include openings for guiding the medium to and from the passages and corrugated portions abutted to each other between the adjacent plates to form supporting points within the passages, in which at least a pair of adjacent plates at each outside end among the plurality of plates are permanently united and joined at their surroundings and around the openings and further at the supporting points between the plates.
- Meanwhile, conventionally, as shown in Japanese Patent Laid-Open No. 2008-168173, as a method for manufacturing a desired reaction product by contacting liquids (reactants) having solubility to each other and mixing them, a method with the use of a flow passage forming body referred to as a so-called micro-channel reactor is known. The micro-channel reactor includes a substrate formed with grooves on the surface, and the grooves constitute fine flow passages. By passing liquids to be mixed through the fine flow passages, area of contact between the liquids to be mixed per unit volume is dramatically increased, which results in enhancement of mixing efficiency of the liquids to be mixed.
- As a multi-flow passage device (a micro-channel reactor), Japanese Patent Laid-Open No. 2008-168173 discloses a reaction apparatus for reacting a first reactant and a second reactant while allowing them to flow, including a flow passage structure having therein a flow passage that extends in a specific direction and allows the first reactant and the second reactant to flow in that direction, in which the flow passage includes: a first introduction passage which is arranged at an entrance side of the flow passage and into which the first reactant is introduced; a second introduction passage which is arranged apart from the first introduction passage while sandwiching a partition wall provided in the flow passage structure and into which the second reactant is introduced; a confluent passage connected to the downstream side of the first introduction passage and the second introduction passage for allowing the first reactant flowing through the first introduction passage and the second reactant flowing through the second introduction passage to meet with each other in a mutually separated laminar flow state; and a reaction flow passage connected to the downstream side of the confluent passage for allowing the laminar flow of the first reactant and the laminar flow of the second reactant to flow in the mutual contact state of both reactants and reacting both reactants in the mutual contact interface, and a dimension in a layer thickness direction vertical to the contact interface of the reaction flow passage is set to become smaller than the sum of a dimension in the layer thickness direction of the first introduction passage and a dimension in the layer thickness direction of the second introduction passage.
- The multi-flow passage devices disclosed in Japanese Patent Laid-Open No. 60-71894 and Japanese Patent Laid-Open No. 2008-168173, although their use applications are different, naturally have a limitation in the number of flow passages and the length of the flow passage in one flow passage plate (plate) constituting an apparatus due to the dimension of the flow passage plate itself and the manufacturing processing method of flow passage. That is, if the number of flow passages per one plate is increased, the length of the flow passage is shortened and a large amount of medium is allowed to pass, but the time during which the medium stays in the multi-flow passage device is reduced, thereby a heat exchange efficiency and a reaction efficiency may be decreased. On the other hand, if the length of the flow passage is lengthened in the plate, the number of flow passages is decreased, so that it may be difficult to pass a large amount of medium.
- As a countermeasure against that, it is conceivable that a plurality of multi-flow passage devices are connected in series or parallel to perform the necessary treatment. However, the handling of connecting piping is a problem, and there is also a problem in securing an installation space for multi-flow passage devices. Japanese Patent Laid-Open No. 60-71894 and Japanese Patent Laid-Open No. 2008-168173 described above disclose a structure of the multi-flow passage device itself, and disclose no guideline for solving the above problems.
- Thus, considering the above problems, the present invention has an object to provide a multi-flow passage device capable of surely performing a desired treatment, such as heat exchange or chemical reaction, even to large amounts of medium.
- In order to achieve the above object, the present invention takes the following technical measures.
- A multi-flow passage device according to the present invention is constituted by stacking units for performing heat exchange or chemical reaction of the introduced medium in a thickness direction, and a flow passage for allowing the flowing medium in one unit to flow in another unit adjacent to the unit is an external flow passage provided outside of one unit and another unit.
- The external flow passage may be preferably provided in contact with the side surface of the unit.
- Inside the external flow passage, a redistribution means for mixing the medium flowing out of one unit and allowing the medium to be redistributed to another unit may be preferably provided.
- The redistribution means may be preferably composed of a porous plate which is disposed inside the external flow passage so as to intersect with the medium flowing direction and through which the medium is allowed to pass.
- With the use of the multi-flow passage device of the present invention, a desired treatment can be surely performed, in heat exchange or chemical reaction, even to large amounts of medium.
-
FIG. 1 is a schematic view showing that a multi-flow passage device according to the present invention is used as a heat exchanger. -
FIG. 2 is a schematic view of a structure of the multi-flow passage device according to the present invention. -
FIGS. 3A and 3B are plan views of a flow passage plate constituting the multi-flow passage device according to the present invention taken along the line A-A inFIG. 2 . -
FIG. 4 is a schematic view showing that the multi-flow passage device according to the present invention is used as a reactor. - Hereinafter, a multi-flow passage device according to the present invention will be described based on the drawings.
- As a first embodiment, a case where a
multi-flow passage device 1 is used as a heat exchanger 2 will be described. - Prior to describing the heat exchanger 2, firstly, a
heat pump apparatus 3 will be described as a typical apparatus to which the heat exchanger 2 is mounted. - As shown in
FIG. 1 , theheat pump apparatus 3 transfers heat from a lower temperature side to a higher temperature side. Theheat pump apparatus 3 includes acompressor 4, a use-side heat exchanger 2B, anexpansion valve 5, and an air heat exchanger 2A, and thecompressor 4, the use-side heat exchanger 2B, theexpansion valve 5, and the air heat exchanger 2A are connected by apiping 6. Thepiping 6 is a flow passage through which a working medium is cycled. - The working medium in the
piping 6 absorbs heat by heat transfer from the external air to a refrigerant in the air heat exchanger 2A, evaporates to be drawn into thecompressor 4, and is compressed therein into a high temperature and pressure gas to be sent to the use-side heat exchanger 2B. Further, the refrigerant releases heat and turns into liquid in the use-side heat exchanger 2B, is decompressed by theexpansion valve 5 and returns back to the air heat exchanger 2A, and undergoes a phase change from a liquid to a gas. - As for the heat exchanger 2 used as the air heat exchanger 2A or the use-
side heat exchanger 2B of the above-mentionedheat pump apparatus 3, high efficiency (high heat-transfer efficiency from the working medium to the use-side medium) is required. However, even if a plurality of heat exchangers 2 are connected in series or parallel to perform the necessary treatment in an effort to increase the efficiency of the heat exchanger 2, the handling of thepiping 6 is a problem and there is also a problem in securing an installation space for the heat exchangers 2 (The details are as described in the above-mentioned “DESCRIPTION OF THE RELATED ART”). - Thus, in the present embodiment, the air heat exchanger 2A and the use-
side heat exchanger 2B are made up of the laminated heat exchanger 2 constituted by stackingheat exchange units 7 for performing heat exchange of the introduced working medium in a thickness direction. Further, a flow passage for allowing the flowing medium in oneheat exchange unit 7 to flow in anotherheat exchange unit 7 adjacent to theheat exchange unit 7 is anexternal flow passage 8 provided outside of theheat exchange units 7. - Hereinafter, the details of the air heat exchanger 2A and the use-
side heat exchanger 2B (hereinafter collectively referred to as the heat exchanger 2) will be described. -
FIG. 2 shows a cross section structure of the heat exchanger 2. - The heat exchanger 2 includes four heat exchange units 7 (unit A-unit D) for performing heat exchange of the introduced working medium and the use-side medium, and constituted by stacking these four
heat exchange units 7 in a thickness direction (the vertical direction). - Various structures can be adopted in each
heat exchange unit 7. For example, it may have a plate type heat exchanger structure. - In the plate type heat exchanger 2, a plurality of heat exchanger plates (heat transfer plates) made of a thin sheet metal such as a stainless plate or an aluminum plate are stacked, and a working medium and a heat source fluid flow alternately between the heat transfer plates, whereby performing heat exchange. On the surface of the heat transfer plate, in order to enhance the heat transfer effect, a herringbone pattern or a corrugated pattern is formed. In the four corners of the heat transfer plate, holes through which the working medium and the heat source are passed are provided.
- In addition, as the structure of the
heat exchange unit 7, the heat exchanger 2 constituted by stackingflow passage plates 12 having a plurality of concave grooves asfluid flow passages 9 on the surface thereof can be adopted. - More specifically, as shown in
FIGS. 3A and 3B , theflow passage plate 12 is a rectangular flat plate having a thickness of several millimeters, for example, made of a metal such as stainless steel or aluminum. At both ends in the longitudinal direction (the horizontal direction inFIGS. 3A and 3B ) of theflow passage plate 12, theflow passages 9 are opened at one end along the longitudinal direction as anentrance 10 for the working medium and theflow passages 9 are opened at the other end as anexit 11 for the working medium. Theentrance 10 and theexit 11 for the working medium are formed at opposite positions along the longitudinal direction of theflow passage plate 12. For example, as shown inFIG. 3A , if theentrance 10 for the working medium is provided in the lower right portion of theflow passage plate 12 in a plan view, theexit 11 for the working medium is provided in the upper left portion of theflow passage plate 12. In theflow passage plate 12 to be stacked onFIG. 3A , as shown inFIG. 3B , theentrance 10 for the working medium is provided in the upper right portion of theflow passage plate 12 in a plan view and theexit 11 for the working medium is provided in the lower left portion of theflow passage plate 12. Thus, in such a unit structure that theflow passage plates 12 having theentrance 10 and theexit 11 at different positions are stacked alternately, fluids flowing in the respective layers are not mixed. - On the surface of the
flow passage plate 12, the plurality offlow passages 9 are formed so as to meander in a width direction of theflow passage plate 12, and connect theentrance 10 and theexit 11 for the working medium. The plurality offlow passages 9 are formed approximately parallel to each other, and do not intersect with each other. Therefore, the working medium flowing in theflow passage 9 from theentrance 10 reaches theexit 11 by way of only thatflow passage 9. - The reason the
flow passages 9 meander in the width direction of theflow passage plate 12 is that it is intended to lengthen theflow passages 9 as much as possible within the limited surface. To achieve such purpose, theflow passages 9 may follow the track other than the meandering shape shown inFIGS. 3A and 3B . - The thus configured
flow passage plates 12 described above are provided as theflow passage plates 12 for working medium and theflow passage plates 12 for cooling medium (water, air) respectively. Then, theflow passage plates 12 are alternately stacked to form oneheat exchange unit 7. - As shown in
FIG. 2 , in case of the present embodiment, a plurality of (four) heat exchange units 7 (also called simply units) described above are provided and stacked in the thickness direction (the vertical direction). Between therespective units 7, apartition wall plate 13 is disposed in such a manner that the working medium, the use-side medium, and the cooling medium are not mixed. Thepartition wall plate 13 has the same shape as theheat exchange unit 7 in a plan view. Anupper wall plate 16 is provided on the upper surface of the topmostheat exchange unit 7, and alower wall plate 17 is provided on the lower surface of the lowermostheat exchange unit 7. - Further, the
flow passage 9 for allowing the flowing medium (for example, working medium) in oneheat exchange unit 7 to flow in anotherheat exchange unit 7 adjacent to theheat exchange unit 7 is arranged in the form of theexternal flow passage 8 provided outside of theheat exchange units 7. - Specifically, an exit side for the working medium of the unit A and an entry side for the working medium of the unit B are set to the same side (the right side in
FIG. 2 ), and an external flow passage 8AB connecting the two in the vertical direction is provided. Similarly, an exit side for the working medium of the unit B and an entry side for the working medium of the unit C are set to the same side (the left side inFIG. 2 ), and an external flow passage SBC connecting the two in the vertical direction is provided. Similarly, an exit side for the working medium of the unit C and an entry side for the working medium of the unit D are set to the same side (the right side inFIG. 2 ), and an external flow passage 8CD connecting the two in the vertical direction is provided. - These external flow passages 8 (8AB, 8BC, 8CD) are formed of a rectangular or semicircular sleeve-shaped pipe in a cross-sectional view, and are provided in such a manner that the open side of the semicircular sleeve-shaped pipe is in contact with the side surface of the heat exchange unit 7 (in other words, the side wall of the heat exchanger 2).
- Due to the presence of the external flow passage 8AB described above, the working medium passed through the unit A is introduced into the unit B placed above the unit A. The working medium passed through the unit B is introduced into the unit C placed above the unit B by way of the external flow passage 8BC. Subsequently, the working medium passed through the unit C is introduced into the unit D placed above the unit C via the external flow passage 8CD, and then the working medium discharged from the unit D flows out to the outside of the heat exchanger 2.
- Such a heat exchanger 2, in spite of being compact, can perform heat exchange at high efficiency as is the case where four
heat exchange units 7 are connected in series. By increasing the number of stages of theheat exchange units 7, it is possible to freely extend (set) the length of the flow passage through which the working medium is passed, so that the restriction of the length of the flow passage due to the manufacturing restrictions is eliminated. Therefore, it is possible to secure a desired heat exchange amount. - Meanwhile, though the length of the flow passage can be extended by connecting the plurality of
heat exchange units 7 via theexternal flow passages 8, it is obvious from the experience that the distribution effect in which the working medium is distributed uniformly to theflow passages 9 of the respective units and flows therein is gradually reduced toward the unit at a rear stage. In order to avoid the disadvantage, the use-side heat exchanger 2B of the present embodiment is provided with a redistribution means 14 for mixing the medium flowing out of oneheat exchange unit 7 and allowing the medium to be redistributed to anotherheat exchange unit 7, inside theexternal flow passage 8. - As the redistribution means 14, in case of the present embodiment, a
porous plate 15 which is disposed inside theexternal flow passage 8 so as to intersect with the medium flowing direction and through which the medium is allowed to pass is adopted. More specifically, theporous plate 15 is a thin sheet provided orthogonal to the flow direction inside theexternal flow passage 8, and a plurality of holes are formed in the thin sheet. The shape, the number, the inner diameter, the arrangement pitch or the like of the holes should be determined in consideration of the flow rate and the viscosity of the working medium, and it is preferable that the flow of the working medium is not prevented and the working medium can be stirred and mixed. It should be noted that a mesh structure can be adopted as the redistribution means 14. - Although the
porous plate 15 may be provided at any position in the halfway point of theexternal flow passage 8, in case of the present embodiment, theporous plate 15 is arranged in the center (the center in the vertical direction) of theflow passage 8, and one side of theporous plate 15 is fixed in contact with thepartition wall plate 13. It should be noted that in case of a single phase such as gas and liquid, theporous plate 15 may be disposed at theexit 11 or theentrance 10 for the working medium of theheat exchange unit 7. In addition, for example, when it is desired to distribute a gas-liquid mixed phase flow to the respective flow passages uniformly, theporous plate 15 may be disposed at theentrance 10 for the working medium of theheat exchange unit 7. - The working medium that flows out of one heat exchange unit 7 (for example, the unit A) and flows to the next heat exchange unit 7 (the unit B) is stirred and mixed by passing through the
porous plate 15, and is distributed uniformly to thefluid flow passages 9 formed in the unit B and flows into them. In this manner, in order to obtain further uniformity, after being discharged, fluid is redistributed and uniformly mixed with the use of theporous plate 15 and the like in a header, after that continuing the reaction. Such an action is achieved in all of theporous plates 15. Therefore, the working medium flows uniformly and heat exchange is performed to a maximum extent in the respectiveheat exchange units 7, so that maximum efficiency as the use-side heat exchanger 2B can be obtained. - Next, as a second embodiment, a case where the
multi-flow passage device 1 is used as a micro-channel reactor 20 will be described. - The micro-channel reactor 20 includes
flow passage plates 12 formed with theflow passages 9 in a bellows-shape on the surface as shown inFIGS. 3A and 3B , and is constituted by stacking a plurality offlow passage plates 12 in a thickness direction. Theflow passages 9 formed on theflow passage plates 12 are referred to as micro-channels in the technical field of the present embodiment, and they are fine flow passages around 1 millimeter in width. Theflow passages 9 referred to as micro-channels is formed by using etching techniques such as chemical etching and the like, and its depth is around 0.4-0.6 times the flow passage width. - By passing liquids to be mixed through the
fine flow passages 9 within the micro-channel reactor 20, area of contact between the liquids to be mixed per unit volume is dramatically increased, which results in enhancement of mixing efficiency of the liquids to be mixed. -
FIG. 4 shows aliquid mixing apparatus 21 according to the present embodiment. The apparatus mixes a first and a second liquids having solubility to each other, and includes a micro-channel reactor 20 for mixing, a firstliquid supply part 22 for supplying the first liquid to the micro-channel reactor 20, and a secondliquid supply part 23 for supplying the second liquid to the micro-channel reactor 20. - Even as for such a micro-channel reactor 20 included in the
liquid mixing apparatus 21, the structures shown inFIGS. 2 , 3A and 3B can be adopted. That is, theflow passage 9 for allowing the flowing medium in one reaction unit 24 (corresponding to theheat exchange unit 7 of the first embodiment) to flow in anotherreaction unit 24 adjacent to thereaction unit 24 is theexternal flow passage 8 provided outside of thereaction units 24. Inside theexternal flow passage 8, the redistribution means 14, composed of theporous plate 15 and the like, for mixing the medium flowing out of onereaction unit 24 and allowing the medium to be redistributed to anotherreaction unit 24 is provided. - According to the thus configured micro-channel reactor 20, in spite of being compact, can perform chemical reaction at high efficiency as is the case where four
reaction units 24 are connected in series. By increasing the number of stages of thereaction units 24, it is possible to freely extend (set) the length of the flow passage through which the first liquid and the second liquid are passed, so that the restriction of the length of the flow passage due to the manufacturing restrictions is eliminated. Therefore, it is possible to achieve a desired chemical reaction. - It should be considered that the embodiments disclosed herein are exemplary and not restrictive in all respects. Specifically, in the embodiments disclosed herein, the matters not explicitly disclosed, such as the running condition and the operating condition, the various parameters, the dimension, weight, volume of the components and the like, do not depart from the scope ordinarily implemented by those of skill in the art, and the values that can be readily contemplated by those of ordinary skill in the art are adopted.
Claims (5)
1. A multi-flow passage device constituted by stacking units for performing heat exchange or chemical reaction of the introduced medium in a thickness direction,
wherein a flow passage for allowing the flowing medium in one unit to flow in another unit adjacent to the unit is an external flow passage provided outside of one unit and another unit.
2. The multi-flow passage device according to claim 1 , wherein the external flow passage is provided in contact with the side surface of the unit.
3. The multi-flow passage device according to claim 1 , wherein inside the external flow passage, a redistribution means for mixing the medium flowing out of one unit and allowing the medium to be redistributed to another unit is provided.
4. The multi-flow passage device according to claim 3 , wherein the redistribution means comprises a porous plate which is disposed inside the external flow passage so as to intersect with the medium flowing direction and through which the medium is allowed to pass.
5. The multi-flow passage device according to claim 2 , wherein inside the external flow passage, a redistribution means for mixing the medium flowing out of one unit and allowing the medium to be redistributed to another unit is provided.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012054487A JP5881483B2 (en) | 2012-03-12 | 2012-03-12 | Multi-channel equipment |
JP2012-054487 | 2012-03-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130233525A1 true US20130233525A1 (en) | 2013-09-12 |
Family
ID=49113015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/758,663 Abandoned US20130233525A1 (en) | 2012-03-12 | 2013-02-04 | Multi-flow passage device |
Country Status (2)
Country | Link |
---|---|
US (1) | US20130233525A1 (en) |
JP (1) | JP5881483B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160178077A1 (en) * | 2014-12-19 | 2016-06-23 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Fluid flow device and method of operating same |
CN107447066A (en) * | 2017-09-21 | 2017-12-08 | 长治市方圣喷吹技术有限公司 | Integral type pulverized coal injection in blast furnace preheater |
CN114797702A (en) * | 2021-01-18 | 2022-07-29 | 万华化学集团股份有限公司 | Continuous microchannel reactor for olefin epoxidation reaction and olefin epoxidation reaction method |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA3012816C (en) * | 2016-02-17 | 2020-08-18 | Ihi Corporation | Heat treatment apparatus |
US11389806B2 (en) * | 2016-12-22 | 2022-07-19 | Shimadzu Corporation | Centrifugal field-flow fractionation device |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3246689A (en) * | 1963-12-23 | 1966-04-19 | Johns Manville | Heating or cooling wall panels |
US3920067A (en) * | 1973-04-11 | 1975-11-18 | Mms Ltd | Heat exchanger for continuous flow fluid heater |
US4781241A (en) * | 1987-08-27 | 1988-11-01 | International Fuel Cells Corporation | Heat exchanger for fuel cell power plant reformer |
US6073686A (en) * | 1998-11-20 | 2000-06-13 | Korea Institute Of Machinery & Materials | High efficiency modular OLF heat exchanger with heat transfer enhancement |
US20040182548A1 (en) * | 2003-03-17 | 2004-09-23 | Cooligy, Inc. | Multi-level microchannel heat exchangers |
US20080314567A1 (en) * | 2005-12-22 | 2008-12-25 | Alfa Laval Corporate Ab | Heat Exchanger Mixing Systen |
US20090000775A1 (en) * | 2007-06-27 | 2009-01-01 | Al-Hadhrami Luai M | Shell and tube heat exchanger |
US20090120629A1 (en) * | 2005-05-13 | 2009-05-14 | Robert Ashe | Variable heat flux heat exchangers |
US20100002535A1 (en) * | 2008-07-03 | 2010-01-07 | Samsung Electronics Co., Ltd. | Method and Apparatus for Mixing Fluids |
US20100101233A1 (en) * | 2008-10-28 | 2010-04-29 | Lincoln Evans-Beauchamp | Cooling Temperature Ladder and Applications Thereof |
WO2010120234A1 (en) * | 2009-04-15 | 2010-10-21 | Alfa Laval Corporate Ab | A flow module |
US20120011867A1 (en) * | 2009-04-03 | 2012-01-19 | Carrier Corporation | Multi-circuit heat exchanger |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5226418A (en) * | 1991-08-01 | 1993-07-13 | General Electric Company | Phase correction of complex - difference processed magnetic resonance angiograms |
JP2001295707A (en) * | 1999-06-03 | 2001-10-26 | Toyota Motor Corp | Fuel reforming device carried on vehicle |
JP3866905B2 (en) * | 2000-05-30 | 2007-01-10 | 松下電器産業株式会社 | Heat exchanger and refrigeration cycle equipment |
JP2002130987A (en) * | 2000-10-19 | 2002-05-09 | Mitsubishi Heavy Ind Ltd | Laminated heat-exchanger |
KR100445183B1 (en) * | 2001-11-29 | 2004-08-21 | 주식회사 경동도시가스 | Plate Type Steam Reformer |
JP2007113801A (en) * | 2005-10-18 | 2007-05-10 | Denso Corp | Heat exchanger |
JP4972726B2 (en) * | 2007-03-28 | 2012-07-11 | 国立大学法人 岡山大学 | Phase inversion temperature emulsification apparatus and emulsification method |
WO2008139651A1 (en) * | 2007-05-02 | 2008-11-20 | Kanken Techno Co., Ltd. | Heat exchanger and gas treatment device using the same |
-
2012
- 2012-03-12 JP JP2012054487A patent/JP5881483B2/en active Active
-
2013
- 2013-02-04 US US13/758,663 patent/US20130233525A1/en not_active Abandoned
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3246689A (en) * | 1963-12-23 | 1966-04-19 | Johns Manville | Heating or cooling wall panels |
US3920067A (en) * | 1973-04-11 | 1975-11-18 | Mms Ltd | Heat exchanger for continuous flow fluid heater |
US4781241A (en) * | 1987-08-27 | 1988-11-01 | International Fuel Cells Corporation | Heat exchanger for fuel cell power plant reformer |
US6073686A (en) * | 1998-11-20 | 2000-06-13 | Korea Institute Of Machinery & Materials | High efficiency modular OLF heat exchanger with heat transfer enhancement |
US20040182548A1 (en) * | 2003-03-17 | 2004-09-23 | Cooligy, Inc. | Multi-level microchannel heat exchangers |
US20090120629A1 (en) * | 2005-05-13 | 2009-05-14 | Robert Ashe | Variable heat flux heat exchangers |
US20080314567A1 (en) * | 2005-12-22 | 2008-12-25 | Alfa Laval Corporate Ab | Heat Exchanger Mixing Systen |
US20090000775A1 (en) * | 2007-06-27 | 2009-01-01 | Al-Hadhrami Luai M | Shell and tube heat exchanger |
US20100002535A1 (en) * | 2008-07-03 | 2010-01-07 | Samsung Electronics Co., Ltd. | Method and Apparatus for Mixing Fluids |
US20100101233A1 (en) * | 2008-10-28 | 2010-04-29 | Lincoln Evans-Beauchamp | Cooling Temperature Ladder and Applications Thereof |
US20120011867A1 (en) * | 2009-04-03 | 2012-01-19 | Carrier Corporation | Multi-circuit heat exchanger |
WO2010120234A1 (en) * | 2009-04-15 | 2010-10-21 | Alfa Laval Corporate Ab | A flow module |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160178077A1 (en) * | 2014-12-19 | 2016-06-23 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Fluid flow device and method of operating same |
CN107447066A (en) * | 2017-09-21 | 2017-12-08 | 长治市方圣喷吹技术有限公司 | Integral type pulverized coal injection in blast furnace preheater |
CN114797702A (en) * | 2021-01-18 | 2022-07-29 | 万华化学集团股份有限公司 | Continuous microchannel reactor for olefin epoxidation reaction and olefin epoxidation reaction method |
Also Published As
Publication number | Publication date |
---|---|
JP5881483B2 (en) | 2016-03-09 |
JP2013188640A (en) | 2013-09-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8474516B2 (en) | Heat exchanger having winding micro-channels | |
US20130233525A1 (en) | Multi-flow passage device | |
EP2623910B1 (en) | Multilayer heat exchanger and heat exchange system | |
CN108225065B (en) | Fluid circulation device | |
US20110226448A1 (en) | Heat exchanger having winding channels | |
JP2018189352A (en) | Heat exchanger | |
JP6584514B2 (en) | Laminated header, heat exchanger, and air conditioner | |
WO2013191056A1 (en) | Heat exchanger | |
EP3059542B1 (en) | Laminated header, heat exchanger, and air-conditioner | |
JPWO2019176565A1 (en) | Plate heat exchanger, heat pump device including plate heat exchanger, and heat pump cooling and heating hot water supply system including heat pump device | |
JP2013057426A (en) | Plate-type heat exchanger and freezing cycle device with the same | |
US9574803B2 (en) | Absorber with plate exchanger with porous distribution element | |
JP6964896B2 (en) | Heat exchanger | |
US11828543B2 (en) | Stacked heat exchanger | |
JP2006112756A (en) | Heat exchanger | |
JP6177459B1 (en) | Plate heat exchanger and refrigeration cycle equipment | |
EP3569959B1 (en) | Water heat exchanger | |
US11624564B2 (en) | Heat exchanger assembly | |
JP6162836B2 (en) | Heat exchanger | |
KR20190075679A (en) | shell in a shell and plate heat exchanger, and shell and plate heat exchanger having the same | |
EP3569962B1 (en) | Water heat exchanger | |
KR20230163482A (en) | Plates for heat exchangers, plate laminates for heat exchangers, and microchannel heat exchangers | |
KR20120083599A (en) | Plate heat exchanger | |
JP2023097857A (en) | Plate for heat exchanger, plate laminate for heat exchanger, and microchannel heat exchanger | |
KR101987850B1 (en) | Printed Circuit Type Heat Exchanger Having Structure Of Elimination Dead Zone |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MATSUOKA, AKIRA;NOISHIKI, KOJI;REEL/FRAME:029750/0270 Effective date: 20121101 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |