CN103977925A - Device and method for measuring and controlling sprinkle density - Google Patents
Device and method for measuring and controlling sprinkle density Download PDFInfo
- Publication number
- CN103977925A CN103977925A CN201410223278.5A CN201410223278A CN103977925A CN 103977925 A CN103977925 A CN 103977925A CN 201410223278 A CN201410223278 A CN 201410223278A CN 103977925 A CN103977925 A CN 103977925A
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- CN
- China
- Prior art keywords
- liquid
- electrode
- nozzle
- level
- feed pump
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/081—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to the weight of a reservoir or container for liquid or other fluent material; responsive to level or volume of liquid or other fluent material in a reservoir or container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
Abstract
The invention discloses a device and a method for measuring and controlling sprinkle density. The device for measuring and controlling the sprinkle density comprises a water tank (1), a feed pump (2), nozzles, a nozzle positioning system and an automatic control part; the nozzle positioning system comprises at least two horizontal slides (4) arranged at the periphery of the water tank (1), a plurality of vertical slides (5) capable of moving along the horizontal slides (4) and nozzle slides (6) connected to the different vertical slides (5); the nozzles (10) are arranged on the nozzle slides (6) and connected with a sprinkle pipeline (9); a plurality of liquid traps (3) are arranged in the water tank (1), the opening of each liquid trap (3) is circular, a multi-electrode liquid level switch (13) is fixed in each liquid trap (3) and used for acquiring a liquid level signal, and discharge electromagnetic valves (12) are arranged at the bottoms of the liquid traps (3). The device and the method are used for realizing evaluation of the sprinkle effect of different types of nozzles in a sea water desalinating evaporator or when the nozzles are arranged differently, analyzing the thickness and the uniformity of a liquid film of a heat transfer pipe in a low-temperature multi-effect sea water desalinating device, and thus improving the heat exchange efficiency on the surface of the heat transfer pipe in engineering application.
Description
Technical field
The present invention relates to a kind of sprinkle density measure and control device and investigating method thereof.
Background technology
Falling Film Evaporator of Horizontal Tube is a kind of high-efficiency and energy-saving type evaporimeter growing up from the seventies, and its advantage is that heat transfer is higher.In horizontal pipe falling film evaporation, one of them important link is spray, spray system is distributed to feed liquid spray on heat-transfer pipe and evaporates, its sprinkle density is larger on the impact of evaporation heat transfer film coefficient, in non-uniform spraying or spray flux inadequate in the situation that, can produce the phenomenon of the dry wall of heat-transfer pipe, seriously reduce the service life of heat transfer coefficient, minimizing heat-transfer pipe.So provide a kind of measure and control device of sprinkle density and investigating method to have great importance service life to system aquifer yield and heat-transfer pipe.
At present, conventional sprinkle density method of testing adopts control valve to regulate fluid flow and pressure, and linear regulation degree is poor; The liquid trap graduated cylinders that adopt with scale more, duty parameter adopts instrument on the spot to show, and by artificial reading, carry out record data, accuracy of detection is low, and error is larger.
Summary of the invention
The invention provides a kind of sprinkle density measure and control device and investigating method thereof, low simply, easily to realize and effectively to solve in prior art the intelligent degree of sprinkle density measurement means, the realistic problem such as precision is not high, and error is larger.
In order to solve the problems of the technologies described above, sprinkle density measure and control device of the present invention and investigating method thereof are achieved by following technical scheme:
A sprinkle density measure and control device, comprises tank (1), feed pump (2), and nozzle, nozzle navigation system, control section, is characterized in that automatically,
Described nozzle navigation system, comprise and be placed in peripheral at least two the horizontal direction slideways (4) of tank (1), can be along the mobile a plurality of vertical direction slideways (5) of horizontal direction slideway (4), be connected to the nozzle slideway (6) on different vertical direction slideways (5), it is upper that nozzle (10) is placed in nozzle slideway (6), nozzle (10) and spray pipeline (9) be connected;
Feed pump (2) is stated in spray pipeline (9) for the water in tank (1) is extracted to Zhi Ge road;
A plurality of liquid traps (3) are set in tank (1), and the opening of each liquid trap (3) is circular, is fixed with multi-electrode liquid-level switch (13), for gathering liquid level signal in each liquid trap (3); Described multi-electrode liquid-level switch (13) comprises three electrodes: a public electrode, a low level electrode and a high level electrode, and public electrode base material is thin titanium rod, outer painting ruthenium; Low level electrode and high level electrode base material are thin copper bar, overcoat low-temperature shrink flame retardant type sleeve pipe, and top is equipped with small cylindrical graphite and in the bottom of liquid trap (3), discharge solenoid valve (12) is set as electrode tips.
Described automatic control section comprises frequency converter, central controller, host computer; The signal that multi-electrode liquid-level switch (13) gathers is admitted to host computer, and host computer is by central controller controls feed pump (2) and magnetic valve (12).
As preferred embodiment, described sprinkle density measure and control device, it is characterized in that, on the main pipe rail of spray pipeline (9), be provided with pressure transmitter (8) and flow transmitter (7), the signal that pressure transmitter (8) and flow transmitter (7) gather is admitted to host computer, by host computer, passes through central controller and Frequency Converter Control feed pump (2).
The sprinkle density investigating method that the present invention provides described measure and control device to realize simultaneously, comprises step below:
Step 1, opens magnetic valve (12), and liquid trap (3) is emptying;
Step 2, shut electromagnetic valve (12); Start feed pump (2), the signal according to the flow transmitter 7 of spray pipeline main pipe rail and pressure transmitter 8 collections, regulates feed pump 2 by frequency converter, thereby the flow on spray pipeline is consistent;
Step 3, the multi-electrode liquid-level switch of central controller in liquid trap (3) starts timing T while arriving low liquid level
l, while arriving high liquid level, stop timing T
h, calculate and hold liquid time T
h-T
l; The radius that calculates liquid trap (3) is denoted as R, is highly denoted as H; The circumscribed square area of liquid trap 3 is 2R
2, sprinkle density=π R
2h/[2R
2t
h-T
l].
Beneficial effect of the present invention is as follows:
(1) the public electrode base material of the multi-electrode liquid-level switch that the present invention proposes adopts thin titanium rod, outer painting ruthenium; Level electrode base material adopts thin copper bar, the insulation of overcoat DRS heat-shrink tube, and small cylindrical graphite is equipped with as electrode tips in top; Can Quick Acquisition to liquid level signal, be quick on the draw.
(2) the central controller accuracy of timekeeping that the present invention proposes is not less than 10ms, and whole timing course is all controlled by human interface device, reduces the error of artificial record, and accuracy of detection is high.
Beneficial effect of the present invention is as follows:
(1) system of the present invention selects the Advanced Control Techniques such as high-precision intelligent instrument, central controller and human interface device that device is carried out intelligent monitoring and automatically controlled, and saves manually, improves data precision;
(2) the present invention gathers the volume to high liquid level required time, liquid trap by liquid level of liquid trap by meter, then according to computational methods, obtains sprinkle density, has simple operation, the low feature of cost.
Accompanying drawing explanation
Fig. 1 is according to spray experiment porch structural representation of the present invention.
Fig. 2 is according to the mounting means of multi-electrode liquid-level switch of the present invention, liquid trap and magnetic valve.
Fig. 3 is according to sprinkle density measure and control device of the present invention and investigating method block diagram thereof.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention will be described.The object of the present invention is achieved like this:
The spray experiment porch that a kind of sprinkle density measure and control device of the present invention adopts as depicted in figs. 1 and 2, comprises the tank on 1 base slideway, 2 feed pumps, 3 liquid traps, 4 horizontal direction slideways, 5 vertical direction slideways, 6 nozzle slideways, 7 flow transmitters, 8 pressure transmitters, 9 spray pipelines, 10 nozzles, 12 magnetic valves, 13 multi-electrode liquid-level switches, the low level electrode of 13-1,13-2 public electrode, the high level electrode of 13-3,14 human interface devices, 15 heat-transfer pipes.
Spray experiment porch is by sprinkle density measurement mechanism and composition of the control system.Spraying platform main body rack is cuboid, and its appearance and size is about 1800mm length * 1600mm, and wide * 2500mm is high.Tank 1 is installed in bottom, and heating surface bank 15 is installed at middle part, and nozzle navigation system is installed on top, and nozzle navigation system is mainly comprised of spray pipeline 9, nozzle 10, nozzle slideway 6, horizontal direction slideway 4 and vertical direction slideway 5; Bottom tank 1 can be pulled out below heating surface bank 15; In nozzle navigation system, there are two nozzle slideways, 2 nozzles are installed on each nozzle slideway, nozzle slideway 4 is connected with vertical direction slideway 5 with horizontal direction slideway 4, and what make that nozzle slideway 4 can be whole moves up and down, and each nozzle can move arbitrarily at three dimensions like this; The bottom of nozzle 10 can regulate to the distance of heating surface bank 15 the superiors' heat-transfer pipes in 200mm～600mm.
Multi-electrode liquid-level switch 13 comprises three electrodes, a public electrode 13-2, and its base material is thin titanium rod, outer painting ruthenium; A low level electrode 13-1 and a high level electrode 13-3, its base material is thin copper bar, overcoat low-temperature shrink flame retardant type sleeve pipe, small cylindrical graphite is equipped with as electrode tips in top, in the bottom of liquid trap 3, discharge solenoid valve 12 is set.
Referring to Fig. 3, whole sprinkle density measure and control device, except above-mentioned spray experiment porch, also comprises automatic control section, as frequency converter, and central controller (PLC), human interface device (host computer).Multi-electrode liquid-level switch 13, flow transmitter 7, the signal that pressure transmitter 8 gathers is admitted to human interface device, and human interface device is controlled feed pump 2 by central controller, magnetic valve 12.
As follows based on the spray sprinkle density measure and control device of experiment porch and the implementation step of investigating method thereof: on human interface device, open magnetic valve 12, liquid trap 3 is emptying, and then shut electromagnetic valve 12; Start feed pump 2, the signal according to the flow transmitter 7 of spray pipeline main pipe rail and pressure transmitter 8 collections, regulates feed pump 2 by frequency converter, thereby the flow on spray pipeline is consistent; Multi-electrode liquid-level switch in liquid trap 3 starts timing T while arriving low liquid level
l, while arriving high liquid level, stop timing T
h, calculate and hold liquid time T
h-T
l; The radius of liquid trap 3 is denoted as R, is highly denoted as H; The circumscribed square area of liquid trap 3 is 2R
2, sprinkle density=π R
2h/[2R
2t
h-T
l], after said process completes, by magnetic valve, can discharge, enter next time and measure.By the sprinkle density under more different sprays position, thereby the arrangement of the performance of shower nozzle or shower nozzle is evaluated.The central controller accuracy of timekeeping that sprinkle density TT&C system of the present invention and investigating method adopt reaches 10ms level, whole timing course is all by central controller controls, reduce the error of artificial record, accuracy of detection is high, and measurement data form is also automatically derived by human interface device after detection finishes.
Claims (4)
1. a sprinkle density measure and control device, comprises tank (1), feed pump (2), and nozzle, nozzle navigation system, control section, is characterized in that automatically,
Described nozzle navigation system, comprise and be placed in peripheral at least two the horizontal direction slideways (4) of tank (1), can be along the mobile a plurality of vertical direction slideways (5) of horizontal direction slideway (4), be connected to the nozzle slideway (6) on different vertical direction slideways (5), it is upper that nozzle (10) is placed in nozzle slideway (6), nozzle (10) and spray pipeline (9) be connected;
Feed pump (2) is stated in spray pipeline (9) for the water in tank (1) is extracted to Zhi Ge road;
A plurality of liquid traps (3) are set in tank (1), and the opening of each liquid trap (3) is circular, is fixed with multi-electrode liquid-level switch (13), for gathering liquid level signal in each liquid trap (3); Described multi-electrode liquid-level switch (13) comprises three electrodes: a public electrode, a low level electrode and a high level electrode, and public electrode base material is thin titanium rod, outer painting ruthenium; Low level electrode and high level electrode base material are thin copper bar, overcoat low-temperature shrink flame retardant type sleeve pipe, and top is equipped with small cylindrical graphite and in the bottom of liquid trap (3), discharge solenoid valve (12) is set as electrode tips.
Described automatic control section comprises frequency converter, central controller, host computer; The signal that multi-electrode liquid-level switch (13) gathers is admitted to host computer, and host computer is by central controller controls feed pump (2) and magnetic valve (12).
2. sprinkle density measure and control device according to claim 1, it is characterized in that, on the main pipe rail of spray pipeline (9), be provided with pressure transmitter (8) and flow transmitter (7), the signal that pressure transmitter (8) and flow transmitter (7) gather is admitted to host computer, by host computer, passes through central controller and Frequency Converter Control feed pump (2).
3. sprinkle density measure and control device according to claim 1, is characterized in that, three electrodes of described multi-electrode liquid-level switch (13), and public electrode base material is thin titanium rod, outer painting ruthenium; Low level electrode and high level electrode base material are thin copper bar, overcoat low-temperature shrink flame retardant type sleeve pipe, and small cylindrical graphite is equipped with as electrode tips in top.
4. the sprinkle density investigating method that measure and control device claimed in claim 1 is realized, comprises step below:
Step 1, opens magnetic valve (12), and liquid trap (3) is emptying;
Step 2, shut electromagnetic valve (12); Start feed pump (2), the signal according to the flow transmitter 7 of spray pipeline main pipe rail and pressure transmitter 8 collections, regulates feed pump 2 by frequency converter, thereby the flow on spray pipeline is consistent;
Step 3, the multi-electrode liquid-level switch of central controller in liquid trap (3) starts timing T while arriving low liquid level
l, while arriving high liquid level, stop timing T
h, calculate and hold liquid time T
h-T
l; The radius that calculates liquid trap (3) is denoted as R, is highly denoted as H; The circumscribed square area of liquid trap 3 is 2R
2, sprinkle density=π R
2h/[2R
2t
h-T
l].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223278.5A CN103977925B (en) | 2014-05-23 | 2014-05-23 | A kind of specific liquid rate measuring and control device and investigating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223278.5A CN103977925B (en) | 2014-05-23 | 2014-05-23 | A kind of specific liquid rate measuring and control device and investigating method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103977925A true CN103977925A (en) | 2014-08-13 |
| CN103977925B CN103977925B (en) | 2016-06-15 |
Family
ID=51270232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410223278.5A Expired - Fee Related CN103977925B (en) | 2014-05-23 | 2014-05-23 | A kind of specific liquid rate measuring and control device and investigating method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103977925B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132698A (en) * | 2014-08-18 | 2014-11-05 | 上海理工大学 | Device and method for measuring water spray parameters of evaporative cooling and evaporative compensating equipment |
| CN109443986A (en) * | 2018-09-27 | 2019-03-08 | 国家能源投资集团有限责任公司 | Cooling tower spray density measuring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883958A (en) * | 1988-12-16 | 1989-11-28 | Vestec Corporation | Interface for coupling liquid chromatography to solid or gas phase detectors |
| WO2002038467A1 (en) * | 2000-11-08 | 2002-05-16 | Mitsubishi Australia Limited | Insecticide/fungicide introduced into controlled atmosphere chamber |
| CN2693329Y (en) * | 2004-05-10 | 2005-04-20 | 朱世忠 | Raising and falling film sprinkle cryoconcerntrating machine |
| CN102755830A (en) * | 2012-08-06 | 2012-10-31 | 湖南永清环保股份有限公司 | Device and method for removing high-concentration sulfur dioxide through interactive spray washing |
| CN103143570A (en) * | 2013-04-03 | 2013-06-12 | 中冶东方工程技术有限公司 | Roller cooling system and cooling control method thereof |
-
2014
- 2014-05-23 CN CN201410223278.5A patent/CN103977925B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883958A (en) * | 1988-12-16 | 1989-11-28 | Vestec Corporation | Interface for coupling liquid chromatography to solid or gas phase detectors |
| WO2002038467A1 (en) * | 2000-11-08 | 2002-05-16 | Mitsubishi Australia Limited | Insecticide/fungicide introduced into controlled atmosphere chamber |
| CN2693329Y (en) * | 2004-05-10 | 2005-04-20 | 朱世忠 | Raising and falling film sprinkle cryoconcerntrating machine |
| CN102755830A (en) * | 2012-08-06 | 2012-10-31 | 湖南永清环保股份有限公司 | Device and method for removing high-concentration sulfur dioxide through interactive spray washing |
| CN103143570A (en) * | 2013-04-03 | 2013-06-12 | 中冶东方工程技术有限公司 | Roller cooling system and cooling control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 谢峰 等: "低温多效蒸馏海水淡化装置降膜喷淋实验台研制", 《中国给排水》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132698A (en) * | 2014-08-18 | 2014-11-05 | 上海理工大学 | Device and method for measuring water spray parameters of evaporative cooling and evaporative compensating equipment |
| CN104132698B (en) * | 2014-08-18 | 2017-05-24 | 上海理工大学 | Device and method for measuring water spray parameters of evaporative cooling and evaporative compensating equipment |
| CN109443986A (en) * | 2018-09-27 | 2019-03-08 | 国家能源投资集团有限责任公司 | Cooling tower spray density measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103977925B (en) | 2016-06-15 |
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Granted publication date: 20160615 Termination date: 20200523 |