CN103557604B - High-temperature liquid state film solar cavity type heat absorber - Google Patents
High-temperature liquid state film solar cavity type heat absorber Download PDFInfo
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- CN103557604B CN103557604B CN201310539707.5A CN201310539707A CN103557604B CN 103557604 B CN103557604 B CN 103557604B CN 201310539707 A CN201310539707 A CN 201310539707A CN 103557604 B CN103557604 B CN 103557604B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The present invention relates to a kind of high-temperature liquid state film solar cavity type heat absorber, including high temperature resistant heat insultating cavity, the top of this is high temperature resistant heat insultating cavity side is provided with liquid working substance entrance, and the bottom of opposite side is provided with liquid working substance outlet；Liquid film heat-absorbent surface is connected with liquid working substance entrance by high-order film formation device, is connected with liquid working substance outlet by low level collecting tank and high temperature submerged pump.Have employed the high-temperature liquid state film solar cavity type heat absorber of this structure, theoretical velocity and Reynolds number can arbitrarily increase, it is not necessary to high-lift pump overcomes on-way resistance, required pump lift to be only ground heat extractor and assumes height；Open type heat extractor completely avoid the risk of endothermic tube blocking, it is adaptable to containing fused salt in interior various high-temperature liquid state working medium, significantly reduces Jing Chang operation technology and the requirement of electric tracing thermal insulation technology；Heat extractor installation near the ground, engineering is simple and safe；Multilamellar baffling eddy clearing structure designs, and effectively reduces the impact on intracavity heat exchange of the containment portion wind field, reduces convection losses.
Description
Technical field
The present invention relates to solar heat absorber device technique field, specifically refer to a kind of high-temperature liquid state film solar cavate and inhale
Hot device.
Background technology
Since the eighties in 20th century, countries in the world establish various types of solar generator Demonstration dress in succession
Put and commercialized running device, promote development and the commercialization process of solar energy thermal-power-generating technology.The existing solar energy in the world
Heat generating system mainly has groove type line-focusing system, tower system and the big fundamental type of dish-style system 3.
Wherein the tower system focusing ratio with its superelevation and the steam parameter of high-quality, be able to be combined with traditional steam turbine
Reach higher generating efficiency, there is preferable economy and application prospect.
Heat extractor is the core component of tower type thermal generation technology, and ground sunlight is reflexed to by ten hundreds of reflecting mirrors
The heat extractor of the most tens of square meters, produces the solar irradiance of hundreds of to thousands of times, and in heat extractor, the heat-transfer working medium of flowing is responsible for
Huge energy is taken away rapidly, and is stored for producing the generating of stable high temperature and high pressure steam.
Secondary reflection type solar heat power generation system is the improvement on the basis of traditional tower-type solar thermal power generating system
Scheme.Owing to heat extractor is arranged on the tower top that tens of rice is high by traditional tower system, convection current and radiation loss are relatively big, and inhale
Hot device I&M cost is the highest, therefore can by installing a doubly curved secondary reflection device in shorter position,
Thus heat extractor is changed into ground and installs, to reduce heat energy loss, and simplify the corollary equipment of part high-altitude heat extractor, significantly cut
Subtract system cost and risk.
High-temp liquid diaphragm type heat extractor is particularly suitable for secondary reflection type solar heat power generation system, can allow up to one
The focusing ratio of more than thousand times, and may be used for the high-temp liquid working medium of multiple different thermal characteristics, it might even be possible to as solar energy-
The reactor that chemical energy converts.Liquid film heat extractor passes through the liquid movement of falling object on inclined-plane and produces higher flow velocity,
To obtain high Reynolds number and convection transfer rate, it is hereby achieved that high heat exchange power.
There is problem below in existing solar heat absorber:
1, in order to improve the liquid refrigerant coefficient of heat transfer in pipeline, the internal diameter of pipeline should not be too big, simultaneously takes account of and keeps away
Exempting from capillarity occur, internal diameter of the pipeline can not be the least, and usual bore takes 20mm～40mm.Meanwhile, thinner caliber
The tube side longer with tower heat extractor can significantly improve again on-way resistance, thus in the limit of existing high temperature high lift pump technical merit
Under system, there is ultimate value in such heat extractor tube fluid speed, generally not over 2m/s, i.e. and the heat convection of such heat extractor
There is ultimate value in coefficient, considers further that the temperature-resistance characteristic of metal tube material, and existing solar energy tower type photo-thermal power generation heat extractor can
It is about 750kW/ with the high irradiance born.
2, existing solar energy tower type photo-thermal power generation cavity type heat absorber many employings fused salt is as working medium, and its freezing point is about
230 DEG C, solid-liquid mixing point is up to 270 DEG C, and the blocking risk in internal diameter takes 20mm～40mm endothermic tube is high, runs Jing Chang
Technology and electric tracing thermal insulation technology propose abnormal harsh requirement.
3, existing solar energy tower type photo-thermal power generation cavity type heat absorber is used for unilateral condenser lens field, and accurate and heavy
Heat extractor need the high tower top of integral hoisting to hundred meters, engineering is very difficult, and upper-level winds is aobvious on the impact of inside cavity heat exchange property
Writing, convection losses is non-negligible.
Summary of the invention
It is an object of the invention to overcome above-mentioned shortcoming of the prior art, it is provided that one is not by caliber size limitation, reason
Discuss flow velocity and Reynolds number is unrestricted, endothermic tube can be avoided to block, significantly reduce Jing Chang operation technology and electric tracing thermal insulation skill
Art requires, engineering simple high-temperature liquid state film solar cavity type heat absorber.
For realizing above-mentioned purpose, the high-temperature liquid state film solar cavity type heat absorber of the present invention by the following technical solutions:
This high-temperature liquid state film solar cavity type heat absorber, it is mainly characterized by, and including high temperature resistant heat insultating cavity, this is high temperature resistant
The top of heat insultating cavity side is provided with liquid working substance entrance, and the bottom of this is high temperature resistant heat insultating cavity opposite side is provided with liquid work
Matter exports, and described liquid working substance porch is provided with high-order film formation device, and described liquid working substance exit is provided with low level
Collecting tank and high temperature submerged pump, liquid film heat-absorbent surface is obliquely installed in described high temperature resistant heat insultating cavity, and this liquid film absorbs heat
Face is connected with described liquid working substance entrance by described high-order film formation device, and this liquid film heat-absorbent surface is by described low level
Collecting tank and high temperature submerged pump are connected with the outlet of described liquid working substance.
High-order film formation device in this high-temperature liquid state film solar cavity type heat absorber includes or level the first dashpot, described
The bottom surface of the first dashpot is circular arc.
By described spilling stalk segmentation between the first dashpot in this high-temperature liquid state film solar cavity type heat absorber, and should
The surface overflowing stalk is arcuate surface, and the height overflowing stalk in nearly described liquid working substance exit is less than nearly liquid working substance
The height overflowing stalk of porch.
High-order film formation device in this high-temperature liquid state film solar cavity type heat absorber includes level the second dashpot, described
The bottom surface of two dashpots is arc, and the bottom of second dashpot in nearly described liquid working substance exit has a plurality of alternate
Every circular hole, liquid working substance by this circular hole flow into described in liquid film heat-absorbent surface.
Along the first dashpot each described or along each described in this high-temperature liquid state film solar cavity type heat absorber
Two dashpots and the side away from described liquid working substance entrance are provided with maintenance emptying valve, this maintenance emptying valve and emptying
Pipeline connects, and the first described dashpot and the second described dashpot all tilt at described maintenance emptying valve.
Low level collecting tank in this high-temperature liquid state film solar cavity type heat absorber includes surge chamber and fluid reservoir, described liquid
Body working medium is flowed into this surge chamber by described liquid film heat-absorbent surface, and the inner surface of described surge chamber is just corresponding to liquid working substance
Side is parabolic terminal buffering suface, and the central lowest part of described surge chamber is provided with liquid collecting hole, the bottom of this surge chamber all to
Central authorities tilt, and the lower section of described liquid collecting hole is provided with fluid reservoir.
Liquid working substance exit in this high-temperature liquid state film solar cavity type heat absorber is provided with high temperature submerged pump, described
Liquid working substance is pumped out described liquid working substance by this high temperature submerged pump by described fluid reservoir and exports.
The inner surface of the high temperature resistant heat insultating cavity in this high-temperature liquid state film solar cavity type heat absorber is provided with deflection plate, institute
The deflection plate stated is parallel to horizontal plane.
The table that liquid film heat-absorbent surface in this high-temperature liquid state film solar cavity type heat absorber contacts with described liquid working substance
Face is zigzag, and the face width of tooth of this liquid film heat-absorbent surface is more than or equal to 50mm.
Liquid film heat-absorbent surface in this high-temperature liquid state film solar cavity type heat absorber is more than or equal to the angle of horizontal plane
40°。
A diameter of 50～70mm of circular hole in this high-temperature liquid state film solar cavity type heat absorber, this circular hole is along described
The spacing in two dashpot directions is 200～400mm.
Have employed the high-temperature liquid state film solar cavity type heat absorber of this structure, have the advantages that
1, the open type liquid film heat transfer technology that the present invention uses no longer is limited by caliber size, theoretical velocity and Reynolds
Number can arbitrarily increase, i.e. the longest mean flow rate in heat exchange inclined-plane is the highest, such that it is able to reach high convection transfer rate, permissible
Easily bear 1MW/m2Above optically focused solar illumination.Fluid in heat extractor the most of the present invention is inclined-plane free landing campaign,
Being no longer necessary to high-lift pump to overcome on-way resistance, required pump lift is only ground heat extractor and assumes height.
2, the open type liquid film heat transfer technology that the present invention uses completely avoid the risk of endothermic tube blocking, and permissible
It is widely used in containing fused salt in interior various high-temperature liquid state working medium, significantly reduces Jing Chang operation technology and electric tracing thermal insulation skill
The requirement of art.
3, the present invention combines secondary counter emitting tower photo-thermal power generation technology, uses the cavate liquid film heat absorption of opening upwards
Device, goes for the condenser lens field of arbitrary shape, and heat extractor installation near the ground, engineering is simple and safe.The liquid that the present invention uses
Body film heat-absorbent surface is positioned at cavity bottom, and cavity have employed special multilamellar baffling eddy clearing structure design, effectively reduces containment portion
The wind field impact on intracavity heat exchange, substantially reduces convection losses.
Accompanying drawing explanation
Fig. 1 is the structural representation of the solar cavity type heat absorber of the present invention.
Fig. 2 a is the side view of a high position multistage threshold film formation device of the present invention.
Fig. 2 b is the top view of a high position multistage threshold film formation device of the present invention.
Fig. 3 a is the side view that the high-order porous of the present invention is split into film device.
Fig. 3 b is the top view that the high-order porous of the present invention is split into film device.
Fig. 4 is the schematic diagram of the low level collecting tank of the present invention.
Fig. 5 is the schematic diagram of the liquid film heat-absorbent surface of the present invention.
Fig. 6 be the solar cavity type heat absorber of the present invention and flow field schematic diagram.
In figure, label is described as follows:
1 high temperature resistant heat insultating cavity
2 liquid working substance entrances
3 high-order film formation devices
4 liquid film heat-absorbent surfaces
5 low level collecting tanks
6 high temperature submerged pumps
7 liquid working substance outlets
8 liquid working substances
9 first dashpots
10 overflow stalk
11 maintenance emptying valves
12 emptying pipelines
13 second dashpots
14 circular holes
15 surge chambers
16 parabolic terminal buffering sufaces
17 liquid collecting holes
18 fluid reservoirs
19 deflection plates
Detailed description of the invention
In order to be able to be more clearly understood that the technology contents of the present invention, describe in detail especially exemplified by following example.
Referring to Fig. 1, this high-temperature liquid state film solar cavity type heat absorber, including high temperature resistant heat insultating cavity 1, high temperature resistant thermal insulation
Cavity 1 uses brick structure, and the top of this is high temperature resistant heat insultating cavity 1 side is provided with liquid working substance entrance 2, this is high temperature resistant insulation chambers
The bottom of body 1 opposite side is provided with liquid working substance outlet 7, is provided with high-order film formation device 3, liquid work at liquid working substance entrance 2
Matter exports and is provided with low level collecting tank 5 and high temperature submerged pump 6 at 7, and liquid film heat-absorbent surface 4 is obliquely installed in high temperature resistant heat insultating cavity
In 1, this liquid film heat-absorbent surface 4 is connected with liquid working substance entrance 7 by high-order film formation device 3, and this liquid film heat-absorbent surface 4 is by low
Position collecting tank 5 and high temperature submerged pump 6 are connected with liquid working substance outlet 7, and liquid working substance 8 to be heated is by the low-lift pump in storage tank
Pumping liquid working medium entrance 2 also enters in high-order film formation device 3, and liquid working substance 8 passes through shunting or bent in high-order film formation device 3
The effect such as surface tension freely spreads on smooth resistant to elevated temperatures liquid film heat-absorbent surface 4 after forming uniform liquid film, and liquid film exists
At a high speed skim over liquid film heat-absorbent surface 4 under the acceleration of gravity, heat thereon is quickly taken away and enters low level collecting tank 5 buffer and
Mixing, after the liquid level in low level collecting tank 5 and temperature rise to preset value, high temperature submerged pump 6 automatically turns on after heating
Liquid working substance 8 pumps out for follow-up TRT from liquid working substance outlet 7.
High-order film formation device 3 can use refractory ceramics or stainless steel material to make, and high-order film formation device 3 can have
Body is high-order multistage threshold film formation device, specifically refers to Fig. 2 a and Fig. 2 b, and wherein, high-order film formation device 3 includes that 2 or 3 grades are delayed
Jet-bedding 9, liquid working substance 8 is through these 2 or 3 grades of dashpot reduced velocity flow, and the bottom surface of the first dashpot 9 is circular arc, the first buffering
By overflowing stalk 10 segmentation between groove 9, thus produce uniform liquid film, and nearly described liquid working substance exports the spilling stalk at 7
The height of 10 is less than the height overflowing stalk 10 at nearly liquid working substance entrance 2.
High-order film formation device 3 can also be specially high-order porous and be split into film device, specifically refers to Fig. 3 a and Fig. 3 b, its
In, high-order film formation device 3 includes that 2 grade of second dashpot 13, the bottom surface of the second dashpot 13 are arc, and nearly liquid working substance outlet
The bottom of the second dashpot 13 at 7 has spaced circular hole 14, and liquid working substance 8 is absorbed heat by this circular hole 14 influent film
Face 4.A diameter of the 50 of circular hole～70mm, this circular hole is 200～400mm along the spacing of dashpot, thus by many groups in plane
On diffusion and converge time tension force formed liquid film.
It is provided with maintenance emptying along the first dashpot 9 or along the second dashpot 13 and the side away from liquid working substance entrance 2
Valve 11, this maintenance emptying valve 11 is connected with emptying pipeline 12, and the first dashpot 9 and the second dashpot 13 are all to emptying valve
Tilt at 11, such that it is able to the remaining liq working medium 8 in the first dashpot 9 or the second dashpot 13 is discharged to outside device
Emptying pipeline 12, to prevent liquid working substance 8 frozen plug in maintenance down time slot, specifically refers to Fig. 2 b and Fig. 3 b.
Referring to Fig. 4, low level collecting tank 5 primarily serves the working medium of high-speed and high-temperature and slows down and mixed uniformly effect, low level
Collecting tank 5 can use pottery or high grade rustless steel, and low level collecting tank 5 includes surge chamber 15 and fluid reservoir 18, liquid working substance 8 by
Liquid film heat-absorbent surface 4 flows into this surge chamber 15, and it is parabolic terminal buffering suface 16 that surge chamber 15 is right against the side of liquid working substance 9
(roughness is not more than Ra0.8), parabolic terminal buffering suface 16 is used for high-speed and high-temperature liquid working substance film buffer deceleration, surge chamber
The bottom of 15 is provided with liquid collecting hole 17, and the bottom of surge chamber 15 all tilts to central authorities, and the lower section of this liquid collecting hole 17 is provided with liquid storage
Tank 18.Liquid working substance exports and is provided with high temperature submerged pump 6 at 7, liquid working substance 8 by this high temperature submerged pump 6 by fluid reservoir 18 pump
Go out liquid working substance outlet 7.
Referring to Fig. 6, wherein the direction of arrow is wind direction, and the inner surface of high temperature resistant heat insultating cavity 1 is provided with deflection plate 19, folding
Stream plate 19 is parallel to horizontal plane.The most several internal faces of cavity-type solar heat extractor have all been covered with endothermic tube, and cavity is adopted
With simple single radial cut polyhedral structure, the outer gas stream entered from opening part is easy in cavity form vortex, thus produces
Raw bigger heat loss through convection loss.Present invention employs the multilamellar baffling eddy clearing structure of uniqueness, have employed inexpensively heat-insulation and heat-preservation
Respond well and resistant to elevated temperatures insulation brick material, on the premise of not affecting light path, by the deflection plate 19 in cavity surrounding to the greatest extent
In possible blocking-up cavity, the generation path of maelstrom, is divided into bigger vortex multiple little vortex, thus intracavity is greatly reduced
Air velocity and heat loss through convection loss.
Referring to Fig. 5, liquid film heat-absorbent surface 4 uses high temperature ceramic material, the use temperature of current most of ceramic materials
Degree is all higher than 800 °, and has good physical characteristic, and the liquid film heat-absorbent surface in the present invention only does runner and uses, the tightest
The Structural strength calls of lattice, therefore actual use temperature can rise to about 1200 °, liquid film heat-absorbent surface 4 and liquid work
The surface of matter contact is zigzag, and the face width of tooth of this liquid film heat-absorbent surface 4 is more than or equal to 50mm.Liquid film heat-absorbent surface 4 and water
The angle of plane is more than or equal to 40 °, and to obtain enough acceleration of gravitys and mean flow rate, liquid film heat-absorbent surface 4 surface is light
Sliding surface (roughness is not more than Ra0.8), to reduce the friction of the transition zone near surface, prevents transition zone liquid working substance 8 mistake
Heat.
In application process, when liquid is inhaled with the liquid film dropping to tilt close to the initial velocity of 0 from high temperature film formation device
After on hot side 4, it is assumed that the effective vent of liquid working substance entrance 2 is 10m*10m, tooth width 0.1m, liquid film heat-absorbent surface 4 and water
The inclination angle of plane takes 45 °, and the coefficient of friction 0.001～0.01 between liquid film layer is negligible, and liquid film is at liquid film heat-absorbent surface 4
On mean flow rate be about 7m/s, it is 14m/s that end enters the flow velocity of low level collecting tank 5.According to fluid horizontal plunder flat board force right
Stream heat transfer theory, calculates average Reynolds numbdr now as a example by 430 DEG C of physical property of Molten Binary Salts and is about:
Re=uL/ν=7*0.1/(8.64e-7)=8.1e5；
Ruse that number is:
Nu=0.037Re4/5Pr1/3=0.037*(8.1e5)4/54.551/3=3268；
Thus calculating forced-convection heat transfer coefficient is:
h=Nuλ/L=3268*0.524/0.1=17124W/(m2K)；
The actual application value of this forced-convection heat transfer coefficient is, when the temperature of liquid film heat-absorbent surface is only above liquid working substance
When 100 DEG C, about 1.7MW/m can be produced2Exchange capability of heat, namely the average focusing ratio of heat extractor can reach 1700 times,
This is that major part liquid working substance solar heat absorber is beyond one's reach at present.
Have employed the high-temperature liquid state film solar cavity type heat absorber of this structure, have the advantages that
1, the open type liquid film heat transfer technology that the present invention uses no longer is limited by caliber size, theoretical velocity and Reynolds
Number can arbitrarily increase, i.e. the longest mean flow rate in heat exchange inclined-plane is the highest, such that it is able to reach high convection transfer rate, permissible
Easily bear 1MW/m2Above optically focused solar illumination.Fluid in heat extractor the most of the present invention is inclined-plane free landing campaign,
Being no longer necessary to high-lift pump to overcome on-way resistance, required pump lift is only ground heat extractor and assumes height.
2, the open type liquid film heat transfer technology that the present invention uses completely avoid the risk of endothermic tube blocking, and permissible
It is widely used in containing fused salt in interior various high-temperature liquid state working medium, significantly reduces Jing Chang operation technology and electric tracing thermal insulation skill
The requirement of art.
3, the present invention combines secondary counter emitting tower photo-thermal power generation technology, uses the cavate liquid film heat absorption of opening upwards
Device, goes for the condenser lens field of arbitrary shape, and heat extractor installation near the ground, engineering is simple and safe.The liquid that the present invention uses
Body film heat-absorbent surface is positioned at cavity bottom, and cavity have employed special multilamellar baffling eddy clearing structure design, effectively reduces containment portion
The wind field impact on intracavity heat exchange, substantially reduces convection losses.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that still may be made that
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings is considered as illustrative
And it is nonrestrictive.
Claims (10)
1. a high-temperature liquid state film solar cavity type heat absorber, it is characterised in that include high temperature resistant heat insultating cavity (1), this resistance to height
The top of temperature heat insultating cavity (1) side is provided with liquid working substance entrance (2), the bottom of this is high temperature resistant heat insultating cavity (1) opposite side
Being provided with liquid working substance outlet (7), described liquid working substance entrance (2) place is provided with high-order film formation device (3), described liquid
Sender property outlet (7) place is provided with low level collecting tank (5) and high temperature submerged pump (6), and liquid film heat-absorbent surface (4) is obliquely installed in described
High temperature resistant heat insultating cavity (1) in, this liquid film heat-absorbent surface (4) is by described high-order film formation device (3) and described liquid
Working medium entrance (2) connects, and this liquid film heat-absorbent surface (4) passes through described low level collecting tank (5) and high temperature submerged pump (6) with described
Liquid working substance outlet (7) connect；
The inner surface of described high temperature resistant heat insultating cavity (1) is provided with several deflection plate (19), each described deflection plate (19)
Being parallel to horizontal plane, described high-temperature liquid state film solar cavity type heat absorber is open type, and each described deflection plate (19) sets
Be placed in the both sides of described high temperature resistant heat insultating cavity (1), and be positioned at the deflection plate (19) of high temperature resistant heat insultating cavity (1) opposite side from
Under up to, length increases successively.
High-temperature liquid state film solar cavity type heat absorber the most according to claim 1, it is characterised in that described high-order film forming
Device (3) includes that 2 or 3 grade of first dashpot (9), the bottom surface of described the first dashpot (9) are circular arc.
High-temperature liquid state film solar cavity type heat absorber the most according to claim 2, it is characterised in that the first described buffering
By overflowing stalk (10) segmentation between groove (9), and the surface of this spilling stalk (10) is arcuate surface, and nearly described liquid working substance
The height of spilling stalk (10) at outlet (7) place is less than the height of spilling stalk (10) at nearly liquid working substance entrance (2) place.
High-temperature liquid state film solar cavity type heat absorber the most according to claim 2, it is characterised in that described high-order film forming
Device (3) includes 2 grade of second dashpot (13), and the bottom surface of described the second dashpot (13) is arc, and nearly described liquid
The bottom of second dashpot (13) at sender property outlet (7) place has a plurality of circular hole (14) separately, and liquid working substance (8) is by this
Liquid film heat-absorbent surface (4) described in circular hole (14) inflow.
High-temperature liquid state film solar cavity type heat absorber the most according to claim 4, it is characterised in that along each described
One dashpot (9) or the side along the second dashpot (13) each described and away from described liquid working substance entrance (2) are arranged
Have maintenance emptying valve (11), this maintenance emptying valve (11) with empty pipeline (12) be connected, described the first dashpot (9) and
Described the second dashpot (13) all tilts to described maintenance emptying valve (11) place.
High-temperature liquid state film solar cavity type heat absorber the most according to claim 1, it is characterised in that described low level liquid collecting
Pond (5) includes surge chamber (15) and fluid reservoir (18), and described liquid working substance (8) is flowed into by described liquid film heat-absorbent surface (4)
This surge chamber (15), it is parabolic terminal buffering that the inner surface of described surge chamber (15) is just corresponding to the side of liquid working substance (8)
Face (16), the central lowest part of described surge chamber (15) is provided with liquid collecting hole (17), the bottom of this surge chamber (15) all in
Centre tilts, and the lower section of described liquid collecting hole (17) is provided with fluid reservoir (18).
High-temperature liquid state film solar cavity type heat absorber the most according to claim 6, it is characterised in that described liquid working substance
Outlet (7) place be provided with high temperature submerged pump (6), described liquid working substance (8) by this high temperature submerged pump (6) by described liquid storage
Tank (18) pumps out described liquid working substance outlet (7).
High-temperature liquid state film solar cavity type heat absorber the most according to claim 1, it is characterised in that described liquid film is inhaled
The surface that hot side (4) contacts with described liquid working substance (8) is zigzag, and the face width of tooth of this liquid film heat-absorbent surface (4) is more than
Equal to 50mm.
High-temperature liquid state film solar cavity type heat absorber the most according to claim 1, it is characterised in that described liquid film is inhaled
Hot side (4) is more than or equal to 40 ° with the angle of horizontal plane.
High-temperature liquid state film solar cavity type heat absorber the most according to claim 4, it is characterised in that described circular hole
(14) a diameter of 50～70mm, this circular hole (14) is 200～400mm along the spacing in described the second dashpot (13) direction.
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| CN201310539707.5A CN103557604B (en) | 2013-11-04 | 2013-11-04 | High-temperature liquid state film solar cavity type heat absorber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310539707.5A CN103557604B (en) | 2013-11-04 | 2013-11-04 | High-temperature liquid state film solar cavity type heat absorber |
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| CN103557604B true CN103557604B (en) | 2016-10-19 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085732A (en) * | 1976-06-07 | 1978-04-25 | Hysom Ervin E | Method and apparatus for heating a liquid using solar energy |
| US4329204A (en) * | 1980-02-19 | 1982-05-11 | Petrek John P | Multiple effect thin film distillation system |
| CN2384175Y (en) * | 1999-07-13 | 2000-06-21 | 刘万年 | Horizontal shining double-layer thermal insulation solar water heater |
| CN203744566U (en) * | 2013-11-04 | 2014-07-30 | 游思梁 | High-temperature liquid membrane solar energy cavity-type heat absorber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911333Y2 (en) * | 1980-12-19 | 1984-04-07 | 日立プラント建設株式会社 | Downstream solar collector |
-
2013
- 2013-11-04 CN CN201310539707.5A patent/CN103557604B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085732A (en) * | 1976-06-07 | 1978-04-25 | Hysom Ervin E | Method and apparatus for heating a liquid using solar energy |
| US4329204A (en) * | 1980-02-19 | 1982-05-11 | Petrek John P | Multiple effect thin film distillation system |
| CN2384175Y (en) * | 1999-07-13 | 2000-06-21 | 刘万年 | Horizontal shining double-layer thermal insulation solar water heater |
| CN203744566U (en) * | 2013-11-04 | 2014-07-30 | 游思梁 | High-temperature liquid membrane solar energy cavity-type heat absorber |
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| Publication number | Publication date |
|---|---|
| CN103557604A (en) | 2014-02-05 |
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