CN101336069A - Non-condensation system in a low temperature environment - Google Patents
Non-condensation system in a low temperature environment Download PDFInfo
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- CN101336069A CN101336069A CNA2008101224697A CN200810122469A CN101336069A CN 101336069 A CN101336069 A CN 101336069A CN A2008101224697 A CNA2008101224697 A CN A2008101224697A CN 200810122469 A CN200810122469 A CN 200810122469A CN 101336069 A CN101336069 A CN 101336069A
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Abstract
The invention provides a low temperature environment free of condensed system, comprising a refrigeration air supply cooling device, a refrigeration liquid supply cooling device, a constant temperature surging tank, a PLC control box, wherein a cold plate is arranged in the constant temperature surging tank, the refrigeration liquid supply cooling device is connected with the cold plate through a liquid supply pipe and a liquid return pipe, while the refrigeration air supply cooling device is connected with the constant temperature surging tank through an air supply pipe and an air return pipe. The PLC control box respectively controls the refrigeration liquid supply cooling device and the refrigeration air supply cooling device. The refrigeration liquid supply cooling device keeps the temperature of the cold plate in -10 to 50 DEG C, and the refrigeration air supply cooling device keeps the temperature in the constant temperature surging tank a little lower than the dewpoint temperature of the cold plate, thereby ensuring no condensation in the constant temperature surging tank. Pressure in the constant temperature surging tank is not lower than 800 Pa, causing highly wet air outside not to enter the tank, thereby increasing working reliability of cold plate. The system is reliable in operation, high efficient in heat emission, which builds a low temperature environment free of condensation, thereby effectively protecting the electronic device.
Description
Technical field
The present invention relates to a kind of low temperature environment non-condensation system, be applicable to low temperature environment frozen-free needs.
Background technology
In order to make electronic device works reliable and stable, can take air directly to blow the electronic equipment cooling and be installed on the mode of using liquid cools on the cold drawing with electronic equipment, the air cooling way cooling effect is undesirable, adopts liquid cools mode effect better.But when the operational environment analog temperature of electronic equipment is-40 ℃～+ 50 ℃ on request, adopt liquid to cool off, electronic devices and components are easy to generate condensation, and it is unreliable to move.
Summary of the invention
In order to overcome above-mentioned prior art deficiency, the purpose of this invention is to provide a kind of low temperature environment non-condensation system, it is reliable, and high efficiency and heat radiation is created the frozen-free low temperature environment, effectively protects electronic equipment.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: this low temperature environment non-condensation system comprises refrigeration air feed cooling device, refrigeration feed flow cooling device, constant temperature and pressure case, PLC control cabinet, be provided with cold drawing in the constant temperature and pressure case, refrigeration air feed cooling device is connected with the constant temperature and pressure case with backwind tube by the air feed pipe, refrigeration feed flow cooling device is connected with cold drawing with liquid back pipe by feed pipe, and the PLC control cabinet is controlled refrigeration air feed cooling device and refrigeration feed flow cooling device respectively.
Described refrigeration air feed cooling device is made up of compressor, axial flow blower, air-cooled condenser, evaporator, low-temperature centrifugation blower fan, constant temperature and pressure case air inlet links to each other with the low-temperature centrifugation blower fan by the air feed pipe, constant temperature and pressure case air outlet links to each other with evaporator by backwind tube, compressor links to each other with air-cooled condenser by the condensation pressure regulation valve, compressor links to each other with evaporator by muffler, liquid reservoir links to each other with air-cooled condenser by check-valves, be provided with pressure-difference valve between condensation pressure regulation valve and check-valves, axial flow blower and air-cooled condenser are 90 ° of placements.
Described refrigeration feed flow cooling device is by compressor, axial flow blower, air-cooled condenser, plate heat exchanger, the high temperature fluid storage tank, the low temperature fluid storage tank, the antifreeze liquid pump of outer circulation, the antifreeze liquid pump of interior circulation, cold drawing is formed, the antifreeze liquid pump of outer circulation is by electric T-shaped valve and high temperature fluid storage tank, the low temperature fluid storage tank links to each other, the low temperature fluid storage tank links to each other with plate heat exchanger through the antifreeze liquid pump of interior circulation, plate heat exchanger cooled via return air pipe and compressor are by linking to each other, compressor links to each other with air-cooled condenser through the condensation pressure regulation valve, cold drawing one end is through feed pipe, fine filter links to each other with the antifreeze liquid pump of outer circulation, the cold drawing other end links to each other with the high temperature fluid storage tank through liquid back pipe, liquid reservoir links to each other with air-cooled condenser by check-valves, be provided with pressure-difference valve between condensation pressure regulation valve and check-valves, axial flow blower and air-cooled condenser are 90 ° of placements.
Be provided with many Temperature Humidity Sensors in the described constant temperature and pressure case.
Connect an electric heater on the described evaporator support.
Owing to adopt above technical scheme, the beneficial effect that the present invention reaches is: this low temperature environment non-condensation system mainly is made up of refrigeration air feed cooling device, refrigeration feed flow cooling device, constant temperature and pressure case, PLC control cabinet, refrigeration feed flow cooling device constant cold drawing temperature-10 ℃～+ 50 ℃, guarantee the high efficiency and heat radiation of electronic equipment, refrigeration air feed cooling device keeps the humiture of constant temperature and pressure case inside, this humiture is guaranteed electronic equipment frozen-free phenomenon in the constant temperature and pressure case a little less than the dew point temperature of cold drawing work; Can keep malleation 0.11Mpa not have distortion in the constant temperature and pressure case case, and guarantee to descend internal pressure to be not less than 800Pa in working order, extraneous highly humid air can't be entered in the case, improve the functional reliability of cold drawing; Native system is reliable, and high efficiency and heat radiation is created the frozen-free low temperature environment, protects electronic equipment effectively.
Description of drawings
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is the present invention's air feed cooling device structural representation that freezes;
Fig. 3 is the present invention's feed flow cooling device structural representation that freezes.
Among the figure, refrigeration air feed cooling device 1, refrigeration feed flow cooling device 2, constant temperature and pressure case 3, PLC control cabinet 4, cold drawing 5, compressor 6, liquid reservoir 7, pressure-difference valve 8, condensation pressure regulation valve 9, check-valves 10, axial flow blower 11, air-cooled condenser 12, air feed pipe 13, low-temperature centrifugation blower fan 14, electric heater 15, Temperature Humidity Sensor 16, evaporator 17, backwind tube 18, muffler 19, compressor 20, pressure-difference valve 21, condensation pressure regulation valve 22, feed pipe 23, liquid back pipe 24, fine filter 25, electric T-shaped valve 26, the antifreeze liquid pump 27 of outer circulation, high temperature fluid storage tank 28, low temperature fluid storage tank 29, the antifreeze liquid pump 30 of interior circulation, air-cooled condenser 31, axial flow blower 32, check-valves 33, liquid reservoir 34, plate heat exchanger 35, muffler 36.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further described.
Shown in Fig. 1, native system adopts modular combination, form by refrigeration air feed cooling device 1, refrigeration feed flow cooling device 2, constant temperature and pressure case 3, PLC control cabinet 4, be provided with cold drawing 5 in the constant temperature and pressure case 3, refrigeration air feed cooling device 1 is connected with constant temperature and pressure case 3 casings with backwind tube by the air feed pipe, refrigeration feed flow cooling device 2 is connected with cold drawing 5 with liquid back pipe by feed pipe, and PLC control cabinet 4 is controlled refrigeration air feed cooling device 1, refrigeration feed flow cooling device 2 respectively.The Programmable Logic Controller of PLC control cabinet 4 is received work order, at first start 1 pair of constant temperature and pressure case of refrigeration air feed cooling device 3 and carry out cool-down dehumidification, when temperature is lower than cold drawing 5 surface temperatures in detecting constant temperature and pressure case 3, starting 2 pairs of cold drawings 5 of refrigeration feed flow cooling device lowers the temperature, freezing liquid after the intensification returns 2 coolings of refrigeration feed flow cooling device, so guarantees can not occur on electronic equipment and the cold drawing condensation frosting phenomenon.
Shown in Fig. 2, refrigeration air feed cooling device is by compressor 6, axial flow blower 11, air-cooled condenser 12, evaporator 17, low-temperature centrifugation blower fan 14 is formed, constant temperature and pressure case 3 links to each other with low-temperature centrifugation blower fan 14 by air feed pipe 13, constant temperature and pressure case 3 links to each other with evaporator 17 by backwind tube 18, compressor 6 links to each other with air-cooled condenser 12 by condensation pressure regulation valve 9, compressor 6 links to each other with evaporator 17 by muffler 19, liquid reservoir 7 links to each other with air-cooled condenser 12 by check-valves 10,10 on condensation pressure regulation valve 9 and check-valves are provided with pressure-difference valve 8, and axial flow blower 11 is 90 ° of placements with air-cooled condenser 12.Compressor 6 is discharged high temperature and high pressure gas and is entered air-cooled condenser 12, and the liquid that is condensed into cryogenic high pressure enters liquid reservoir 7, and after this liquid entered evaporator 17 and absorbs the high temperature air heat that constant temperature and pressure casees 3 return, the gas that becomes low-temp low-pressure returned compressor 6.By the aerial temperature and humidity that Temperature Humidity Sensor 16 detects in the constant temperature and pressure case 3, the unlatching of control refrigeration air feed cooling device.High temperature humid air in the constant temperature and pressure case 3 by electric heater 15 dehumidifying, is sent into constant temperature and pressure case 3 through low-temperature centrifugation blower fan 14 by evaporator 17 coolings, forms a circulation, makes the aerial temperature and humidity in the case constant.
Shown in Fig. 3, refrigeration feed flow cooling device is by compressor 20, axial flow blower 32, air-cooled condenser 31, plate heat exchanger 35, high temperature fluid storage tank 28, low temperature fluid storage tank 29, the antifreeze liquid pump 27 of outer circulation, the antifreeze liquid pump 30 of interior circulation, cold drawing 5 is formed, the antifreeze liquid pump 27 of outer circulation is by electric T-shaped valve 26 and high temperature fluid storage tank 28, low temperature fluid storage tank 29 is connected, antifreeze liquid pump 30 of interior circulation and low temperature fluid storage tank 29, plate heat exchanger 35 is connected, compressor 20 is connected with air-cooled condenser 31 through condensation pressure regulation valve 22, cold drawing 5 is through feed pipe 23, fine filter 25 is communicated with the antifreeze liquid pump 27 of outer circulation, cold drawing 5 is connected with high temperature fluid storage tank 28 through liquid back pipe 24, compressor 20 links to each other with plate heat exchanger 35 by muffler 36, liquid reservoir 34 links to each other with air-cooled condenser 31 by check- valves 33,33 on condensation pressure regulation valve 22 and check-valves are provided with pressure-difference valve 21, and axial flow blower 32 is 90 ° of placements with air-cooled condenser 31.Compressor is made freezing liquid, cryogenic freezing liquid after plate heat exchanger 35 coolings, deliver to low temperature fluid storage tank 29 by the antifreeze liquid pump 30 of interior circulation, the antifreeze liquid pump 27 of outer circulation is regulated high temperature fluid storage tank 28 and low temperature fluid storage tank 29 freezing liquid ratios by electric T-shaped valve 26, reach constant feed flow temperature and send into cold drawing 5, get back to high temperature fluid storage tank 28 through the freezing liquid after cold drawing 5 intensifications, form a circulation.
Claims (5)
1, a kind of low temperature environment non-condensation system, it is characterized in that: comprise refrigeration air feed cooling device (1), refrigeration feed flow cooling device (2), constant temperature and pressure case (3), PLC control cabinet (4), be provided with cold drawing (5) in the constant temperature and pressure case, refrigeration air feed cooling device is connected with the constant temperature and pressure case with backwind tube (18) by air feed pipe (13), refrigeration feed flow cooling device is connected with cold drawing (5) with liquid back pipe (24) by feed pipe (23), and the PLC control cabinet is controlled refrigeration air feed cooling device and refrigeration feed flow cooling device respectively.
2, low temperature environment non-condensation system according to claim 1, it is characterized in that: described refrigeration air feed cooling device is by compressor (6), axial flow blower (11), air-cooled condenser (12), evaporator (17), low-temperature centrifugation blower fan (14) is formed, constant temperature and pressure case (3) air inlet links to each other with low-temperature centrifugation blower fan (14) by air feed pipe (13), constant temperature and pressure case air outlet links to each other with evaporator (17) by backwind tube (18), compressor (6) links to each other with air-cooled condenser (12) by condensation pressure regulation valve (9), compressor links to each other with evaporator (17) by muffler (19), liquid reservoir (7) links to each other with air-cooled condenser by check-valves (10), be provided with pressure-difference valve (8) between condensation pressure regulation valve and check-valves, axial flow blower and air-cooled condenser are 90 ° of placements.
3, low temperature environment non-condensation system according to claim 1, it is characterized in that: described refrigeration feed flow cooling device is by compressor (20), axial flow blower (32), air-cooled condenser (31), plate heat exchanger (35), high temperature fluid storage tank (28), low temperature fluid storage tank (29), the antifreeze liquid pump of outer circulation (27), interior circulation antifreeze liquid pump (30), cold drawing (5) is formed, the antifreeze liquid pump of outer circulation is by electric T-shaped valve (26) and high temperature fluid storage tank, the low temperature fluid storage tank links to each other, the low temperature fluid storage tank links to each other with plate heat exchanger through the antifreeze liquid pump of interior circulation, plate heat exchanger cooled via return air pipe (36) and compressor are by linking to each other, compressor links to each other with air-cooled condenser through condensation pressure regulation valve (22), cold drawing one end is through feed pipe (23), fine filter (25) links to each other with the antifreeze liquid pump of outer circulation, the cold drawing other end links to each other with the high temperature fluid storage tank through liquid back pipe (24), liquid reservoir (34) links to each other with air-cooled condenser by check-valves (33), be provided with pressure-difference valve (21) between condensation pressure regulation valve (22) and check-valves (33), axial flow blower and air-cooled condenser are 90 ° of placements.
4, low temperature environment non-condensation system according to claim 1 is characterized in that: be provided with many Temperature Humidity Sensors (16) in the described constant temperature and pressure case (3).
5, low temperature environment non-condensation system according to claim 2 is characterized in that: connect an electric heater (15) on described evaporator (17) support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101224697A CN101336069B (en) | 2008-06-19 | 2008-06-19 | Non-condensation system in a low temperature environment |
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| CN2008101224697A CN101336069B (en) | 2008-06-19 | 2008-06-19 | Non-condensation system in a low temperature environment |
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| CN101336069A true CN101336069A (en) | 2008-12-31 |
| CN101336069B CN101336069B (en) | 2011-08-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714418A (en) * | 2009-07-23 | 2012-10-03 | 锂电池科技有限公司 | Charging apparatus for electric energy stores, supply station, and method for charging electric energy stores |
| CN106440252A (en) * | 2016-11-08 | 2017-02-22 | 广东美的暖通设备有限公司 | Air conditioner protecting method, protecting system and air conditioner |
| US20170254574A1 (en) * | 2016-03-01 | 2017-09-07 | Jay Eunjae Kim | Direct Cooling Platform With Vapor Compression Refrigeration Cycle And Applications Thereof |
| CN107438353A (en) * | 2017-08-31 | 2017-12-05 | 国网湖南省电力公司 | Large Copacity SVG enclosed air cooling systems |
| CN109018279A (en) * | 2018-07-18 | 2018-12-18 | 合肥丰蓝电器有限公司 | A kind of high pressure saturation diving cabin environmental control system |
| WO2021000873A1 (en) * | 2019-07-01 | 2021-01-07 | 北京航空航天大学 | Overall efficient heat dissipation system for high power density cabinet |
| CN113074473A (en) * | 2021-03-17 | 2021-07-06 | 中国电子科技集团公司第二十九研究所 | Consumable evaporation refrigerating device and use method thereof |
-
2008
- 2008-06-19 CN CN2008101224697A patent/CN101336069B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714418A (en) * | 2009-07-23 | 2012-10-03 | 锂电池科技有限公司 | Charging apparatus for electric energy stores, supply station, and method for charging electric energy stores |
| US20170254574A1 (en) * | 2016-03-01 | 2017-09-07 | Jay Eunjae Kim | Direct Cooling Platform With Vapor Compression Refrigeration Cycle And Applications Thereof |
| CN106440252A (en) * | 2016-11-08 | 2017-02-22 | 广东美的暖通设备有限公司 | Air conditioner protecting method, protecting system and air conditioner |
| CN106440252B (en) * | 2016-11-08 | 2019-05-24 | 广东美的暖通设备有限公司 | A kind of air conditioner guard method, protection system and air conditioner |
| CN107438353A (en) * | 2017-08-31 | 2017-12-05 | 国网湖南省电力公司 | Large Copacity SVG enclosed air cooling systems |
| CN109018279A (en) * | 2018-07-18 | 2018-12-18 | 合肥丰蓝电器有限公司 | A kind of high pressure saturation diving cabin environmental control system |
| CN109018279B (en) * | 2018-07-18 | 2023-12-08 | 合肥丰蓝电器有限公司 | High-pressure saturated diving chamber environmental control system |
| WO2021000873A1 (en) * | 2019-07-01 | 2021-01-07 | 北京航空航天大学 | Overall efficient heat dissipation system for high power density cabinet |
| US11528829B2 (en) | 2019-07-01 | 2022-12-13 | Beihang University | Overall efficient heat dissipation system for high power density cabinet |
| CN113074473A (en) * | 2021-03-17 | 2021-07-06 | 中国电子科技集团公司第二十九研究所 | Consumable evaporation refrigerating device and use method thereof |
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|---|---|
| CN101336069B (en) | 2011-08-24 |
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Effective date of registration: 20181026 Address after: 225400 Jiangping North Road, Taixing, Taizhou, Jiangsu 23-2 Patentee after: Taixing aviation Photoelectric Technology Co., Ltd. Address before: 225400 No. 58-68 Ping Bei Road, Zhenjiang, Taixing, Taixing, Jiangsu. Patentee before: Jiangsu Yongsheng Air Conditioner Co., Ltd. |
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