CN102680037A - Air quantity differential pressure calibration method applied to liquid cooling type frame - Google Patents
Air quantity differential pressure calibration method applied to liquid cooling type frame Download PDFInfo
- Publication number
- CN102680037A CN102680037A CN2012101844272A CN201210184427A CN102680037A CN 102680037 A CN102680037 A CN 102680037A CN 2012101844272 A CN2012101844272 A CN 2012101844272A CN 201210184427 A CN201210184427 A CN 201210184427A CN 102680037 A CN102680037 A CN 102680037A
- Authority
- CN
- China
- Prior art keywords
- air
- pressure
- heat interchanger
- air quantity
- differential pressure
- 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.)
- Granted
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an air quantity differential pressure calibration method applied to a liquid cooling type frame. A heat exchanger and differential pressure sensors are adopted by the air quantity differential pressure calibration method applied to the liquid cooling type frame, wherein the pressure sensors are arranged at both sides of the heat exchanger and used for testing air resistance, and a heat exchanger resistance testing function and a flow calculation function can be realized; and air pressure data of both sides of the heat exchanger are acquired by the pressure sensors, and resistance data of the heat exchanger can be obtained according to the differential pressure. Defects of testing methods at present can be avoided by the air quantity differential pressure calibration method, and an air quantity testing result can be more accurate.
Description
Technical field
The present invention relates to a kind of pressure reduction and demarcate the air quantity method, particularly relate to a kind of pressure reduction demarcation air quantity method that is applicable in the liquid-cooled frame.
Background technology
The ventilation of liquid-cooled frame air-conditioning is a very important parameter, and the space is narrow and small in the frame air-conditioning, and even air property is poor.At present, the method for test fluid cold type frame air conditioner ventilation amount is air velocity transducer to be installed earlier come measuring wind in the air channel, again according to the long-pending survey air quantity that is converted into of duct cross-section.This method also can be measured air quantity, uses also relatively extensively, but has the defective that need not ignore, because air is to pass through the cross section with the form of integral body through pipeline the time.Obtain air quantity if multiply by Method for Area with wind speed, wind speed just must be able to be represented the mean wind speed in whole pipe cross section so.Yet the way of reality is really not so.The wind speed measuring point that traditional survey method is chosen has only one, and what can represent also only is the wind speed at this some place, can't reflect the mean wind speed of duct cross-section at all, causes net result and actual value to have maximum error, and then the control effect of air-conditioning is caused adverse effect.Causing this error fundamentally to say is the problem of method of testing, and the limitation of testing tool.If reasonable method test wind speed more can be arranged, concerning the performance of air-conditioning, will have great raising.The method of testing of air-conditioning air quantity is in the liquid-cooled frame at present: adopt the wind speed of single-point in the air velocity transducer test air channel, then through the long-pending air quantity of trying to achieve of duct cross-section.But the air quantity of single-spot testing can not be represented whole wind speed in the pipe, has limitation, and is accurate inadequately.
Summary of the invention
Technical matters to be solved by this invention provides a kind of pressure reduction demarcation air quantity method that is applicable in the liquid-cooled frame, and the drawback that it avoids present method of testing makes the wind quantity test result more accurate.
The present invention solves above-mentioned technical matters through following technical proposals: a kind of liquid-cooled that is applicable to
Pressure reduction in the frame is demarcated the air quantity method; It is characterized in that, said pressure reduction demarcation air quantity method employing heat interchanger and the differential pressure pickup that is applicable in the liquid-cooled frame, pressure transducer is installed on the both sides of heat interchanger; Be used for testing air resistance; Can realize heat interchanger resistance measurement function and flow rate calculation function, the pressure data of differential pressure pickup heat collecting exchanger both sides air can obtain the drag data of heat interchanger according to pressure reduction.
Preferably,, saidly be applicable to that pressure reduction in the liquid-cooled frame demarcates the air quantity method and also adopt return airway, air-out air channel, air-out pressure tappings, return air pressure tappings, heat interchanger is between supply air duct and air-out air channel; Pressure transducer connects air-out pressure tappings and return air pressure tappings, and air-out pressure and return air pressure tappings lay respectively on supply air duct and the air-out air channel.
Positive progressive effect of the present invention is: the present invention avoids the drawback of present method of testing, makes the wind quantity test result more accurate.
Description of drawings
Fig. 1 demarcates the schematic diagram of air quantity method for the present invention is applicable to the pressure reduction in the liquid-cooled frame.
?
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
As shown in Figure 1; The present invention is applicable to that the pressure reduction demarcation air quantity method in the liquid-cooled frame adopts return airway 1, heat interchanger 2, air-out air channel 3, air-out pressure tappings 4, differential pressure pickup 5, return air pressure tappings 6, and heat interchanger 2 is between supply air duct 1 and air-out air channel 3; Pressure transducer 5 connects air-out pressure tappings 4 and return air pressure tappings 5, and wherein air-out pressure tappings 4 lays respectively on supply air duct 1 and the air-out air channel 3 with return air pressure tappings 6, is furnished with the probe of pressure transducer in wind pressure tappings 4 and the return air pressure tappings 6.Pressure transducer 5 is installed on the both sides of heat interchanger 2, is used for testing air resistance, can realize heat interchanger resistance measurement function and flow rate calculation function.
Send into air channel, heat interchanger place after air pressurizes through blower fan, at first pass through return airway 1, at this moment
Differential pressure pickup is positioned at the return air pressure tappings 6 of air-return duct will gather return air pressure; Return air is blown in the heat interchanger 2 from return airway 1; Fully carry out heat interchange with heat interchanger 2, receive the effect that heat interchanger 2 stops and rubs simultaneously, blast will reduce; Wind gets in the air-out air channel 3 then, and the air-supply pressure tappings that is arranged in the air-out air channel 3 is gathered blast pressure.The pressure data that is collected by return air pressure tappings 6 and air-supply pressure tappings 4 can draw pressure difference data through the processing of differential pressure pickup 5.Air also just draws through the drag data of heat interchanger 2.Because the position of heat interchanger is confirmed, also just confirms through the air resistance-flow of heat interchanger is hot, draws drag data according to differential pressure pickup again, can obtain the air circulation of liquid-cooled frame air-conditioning.
Air has drag losses when in the air channel, passing through heat interchanger.We install a differential pressure pickup on liquid-cooled frame air-condition heat exchanger, two pressure reduction pressure tappings are arranged, and one another is positioned at supply air duct near in the return airway, all on the dividing plate near heat interchanger.Recirculating air flow through the order here is: return airway-heat interchanger-supply air duct.There is drag losses in the place at heat interchanger.The pressure data of differential pressure pickup heat collecting exchanger both sides air can obtain the drag data of heat interchanger according to pressure reduction; After the position of heat interchanger in the liquid-cooled frame confirmed; Its drag characteristic has also just and then been confirmed; Then as long as according to air mass flow--the resistance of drag characteristic and heat interchanger both sides through heat interchanger; Just can calculate the return air quantity through heat interchanger, the just ventilation of air-conditioning very easily.Be with the difference of classic method: what the heat interchanger drag characteristic reflected is the whole characteristic of heat interchanger, and is not the characteristic of the local single-point of heat interchanger.The ventilation that calculates thus is more accurate, thereby avoided measuring the final air quantity result's that the single-point wind speed caused error.
Those skilled in the art can carry out various remodeling and change to the present invention.Therefore, the present invention has covered various remodeling and the change in the scope that falls into appending claims and equivalent thereof.
Claims (2)
1. one kind is applicable to the pressure reduction demarcation air quantity method in the liquid-cooled frame; It is characterized in that, said pressure reduction demarcation air quantity method employing heat interchanger and the differential pressure pickup that is applicable in the liquid-cooled frame, pressure transducer is installed on the both sides of heat interchanger; Be used for testing air resistance; Can realize heat interchanger resistance measurement function and flow rate calculation function, the pressure data of differential pressure pickup heat collecting exchanger both sides air can obtain the drag data of heat interchanger according to pressure reduction.
2. the pressure reduction demarcation air quantity method that is applicable in the liquid-cooled frame as claimed in claim 1; It is characterized in that; Saidly be applicable to that pressure reduction in the liquid-cooled frame demarcates the air quantity method and also adopt return airway, air-out air channel, air-out pressure tappings, return air pressure tappings, heat interchanger is between supply air duct and air-out air channel; Pressure transducer connects air-out pressure tappings and return air pressure tappings, and air-out pressure and return air pressure tappings lay respectively on supply air duct and the air-out air channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210184427 CN102680037B (en) | 2012-06-06 | 2012-06-06 | Air quantity differential pressure calibration method applied to liquid cooling type frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210184427 CN102680037B (en) | 2012-06-06 | 2012-06-06 | Air quantity differential pressure calibration method applied to liquid cooling type frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102680037A true CN102680037A (en) | 2012-09-19 |
| CN102680037B CN102680037B (en) | 2013-10-09 |
Family
ID=46812311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210184427 Active CN102680037B (en) | 2012-06-06 | 2012-06-06 | Air quantity differential pressure calibration method applied to liquid cooling type frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102680037B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245481A (en) * | 2013-05-07 | 2013-08-14 | 杭州电子科技大学 | Frequency conversion technology based detection method for air resistance characteristic of large-scale variable-load heat exchanger |
| CN109596307A (en) * | 2018-12-03 | 2019-04-09 | 南京慧和建筑技术有限公司 | A kind of air supply tube resistance measurement equipment |
| CN109827703A (en) * | 2019-03-27 | 2019-05-31 | 歌尔股份有限公司 | Air pressure detection method, device and washing machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392391A (en) * | 2002-07-25 | 2003-01-22 | 浙江大学 | Multiple air channel air amount measuring method and device in large air channel |
| CN1475776A (en) * | 2002-08-16 | 2004-02-18 | 俞思元 | Cross section type flow meter |
| CN101059415A (en) * | 2007-05-31 | 2007-10-24 | 宁波纺织仪器厂 | Fabric air-permeability tester |
| CN201110609Y (en) * | 2007-11-07 | 2008-09-03 | 北京康孚环境控制有限公司 | Three-dimensional elevated library central ventilated constant temperature and humidity air conditioner system |
| CN101526419A (en) * | 2009-04-09 | 2009-09-09 | 杭州杭氧股份有限公司 | Flow characteristics test method and device of a plate-fin heat exchanger fin |
| CN101532901A (en) * | 2009-04-13 | 2009-09-16 | 苏州工业设备安装集团有限公司 | Air leakage amount testing device of clean air conditioning system |
-
2012
- 2012-06-06 CN CN 201210184427 patent/CN102680037B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392391A (en) * | 2002-07-25 | 2003-01-22 | 浙江大学 | Multiple air channel air amount measuring method and device in large air channel |
| CN1475776A (en) * | 2002-08-16 | 2004-02-18 | 俞思元 | Cross section type flow meter |
| CN101059415A (en) * | 2007-05-31 | 2007-10-24 | 宁波纺织仪器厂 | Fabric air-permeability tester |
| CN201110609Y (en) * | 2007-11-07 | 2008-09-03 | 北京康孚环境控制有限公司 | Three-dimensional elevated library central ventilated constant temperature and humidity air conditioner system |
| CN101526419A (en) * | 2009-04-09 | 2009-09-09 | 杭州杭氧股份有限公司 | Flow characteristics test method and device of a plate-fin heat exchanger fin |
| CN101532901A (en) * | 2009-04-13 | 2009-09-16 | 苏州工业设备安装集团有限公司 | Air leakage amount testing device of clean air conditioning system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245481A (en) * | 2013-05-07 | 2013-08-14 | 杭州电子科技大学 | Frequency conversion technology based detection method for air resistance characteristic of large-scale variable-load heat exchanger |
| CN103245481B (en) * | 2013-05-07 | 2015-07-15 | 杭州电子科技大学 | Frequency conversion technology based detection method for air resistance characteristic of large-scale variable-load heat exchanger |
| CN109596307A (en) * | 2018-12-03 | 2019-04-09 | 南京慧和建筑技术有限公司 | A kind of air supply tube resistance measurement equipment |
| CN109827703A (en) * | 2019-03-27 | 2019-05-31 | 歌尔股份有限公司 | Air pressure detection method, device and washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102680037B (en) | 2013-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101526419A (en) | Flow characteristics test method and device of a plate-fin heat exchanger fin | |
| CN102353410B (en) | Method and device utilizing trace gas to measure air channel volume | |
| CN109098995B (en) | Method and device for testing performance of air duct and fan of traction motor cooling system | |
| CN106196272A (en) | Indoor apparatus of air conditioner, air-conditioning air volume control method and device | |
| CN102680037B (en) | Air quantity differential pressure calibration method applied to liquid cooling type frame | |
| CN204807295U (en) | A wind tunnel experiment device for different plate -fin heat exchanger plain fin | |
| US20140208755A1 (en) | Gas Turbine Air Mass Flow Measuring System and Methods for Measuring Air Mass Flow in a Gas Turbine Inlet Duct | |
| CN102133496A (en) | Dust filtering performance testing method and system of air filter for cab of vehicle on road | |
| CN101149312B (en) | Heat exchanger performance test system for sealing cabinet heat radiation | |
| CN102928054B (en) | Detection device for gas meter with temperature compensation function and detection method of device | |
| CN108072410A (en) | Air flow meter detecting system | |
| CN208534819U (en) | Device for the test of fan aeroperformance | |
| CN103323060A (en) | Method for measuring flow quantity and flow speed of gas in pipeline | |
| US11391656B2 (en) | Pressure probes and pressure measurements in airflow | |
| CN202024973U (en) | Thermotechnical performance detecting device of air duct type heat exchange device | |
| CN202596766U (en) | Simulation test device for testing frictional resistance coefficient of curve tunnel ventilation | |
| CN203163959U (en) | Simulation device for wind resistance of speed regulation air laminar flow test model | |
| CN109238738B (en) | Special vehicle cooling air volume testing device and method based on testability grating | |
| CN104483094A (en) | Platform and method for measuring resistance characteristic of heat exchange tube bundle | |
| CN102590057B (en) | Method for measuring draw resistance value of draw resistance standard rod and method for checking calibration value of draw resistance standard rod | |
| CN105758647B (en) | A kind of exhaust back pressure test macro | |
| CN106126858A (en) | A kind of method of fan type selecting in electrokinetic cell air cooling system | |
| CN106370343A (en) | Blower fan feature multipoint pressure synchronous measurement test system | |
| CN103245792B (en) | Combined type equalizing pipe wind speed measuring element | |
| CN102455196B (en) | Air test system used for service test of cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151104 Address after: Shanghai City, Xuhui District Guiping road B new Caohejing International Business Center No. 391 building 27 floor Patentee after: Shanghai East-China Computer Co., Ltd. Address before: 200233 Shanghai city Chongming County City erected a new town Highway No. 1057 building 126 room 15 Patentee before: Shanghai East China Computer System Engineering Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 126, building 15, no.1057 Tuancheng Road, Lixin Town, Chongming District, Shanghai 200233 Patentee after: CETC Digital Technology Co.,Ltd. Address before: 27th floor, building B, xincaohejing international business center, 391 Guiping Road, Xuhui District, Shanghai Patentee before: SHANGHAI EAST CHINA COMPUTER Co.,Ltd. |