CN200986351Y - Wind cooling cold water air-conditioning unit - Google Patents
Wind cooling cold water air-conditioning unit Download PDFInfo
- Publication number
- CN200986351Y CN200986351Y CN 200620140988 CN200620140988U CN200986351Y CN 200986351 Y CN200986351 Y CN 200986351Y CN 200620140988 CN200620140988 CN 200620140988 CN 200620140988 U CN200620140988 U CN 200620140988U CN 200986351 Y CN200986351 Y CN 200986351Y
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- air
- heat exchanger
- side heat
- conditioning unit
- compressor
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Abstract
The utility model discloses a wind cooling cold water air conditioning unit, and comprises a control, a compressor, an air-side heat exchanger, an accumulator and a heat elimination blower fan. The compressor is communicated with the air-side heat exchanger; the air-side heat exchanger is communicated with the accumulator; the compressor is also connected with a condensation pressure-difference valve. The other end of the condensation pressure-difference valve is communicated with the accumulator; a condensing pressure control valve is provided on the pipeline between the air-side heat exchanger and the accumulator. The wind cooling cold water air conditioning unit can operate normally under the low temperature environment of negative twenty DEG C. The heat elimination blower fan stops operating under such low temperature environment and can be disassembled, and is convenient to be maintained; and the service life is prolonged. Waste resulting from low control accuracy is prevented to achieve low consumption of energy, economization of resource and improvement of energy efficiency.
Description
Technical field
The utility model relates to a kind of wind-cooled cold-water air-conditioning unit.
Background technology
During the work of wind-cooled cold-water air-conditioning unit, cooling fan is normal with the assurance condensing pressure according to the corresponding change power output of the change of temperature, stablize required high and low pressure of air-conditioning unit operation and high and low pressure reduction, otherwise wind-cooled cold-water air-conditioning unit can not move normally.Adopt a plurality of independently-powered cooling fans in existing wind-cooled cold-water air-conditioning unit, cooling fan can independence or is used in combination, thereby reaches air quantity control, keeps the required condensing pressure of air-conditioning unit.This a plurality of independently-powered cooling fan takies the Air conditioner box space; Not quick detachable during start, maintenance difficult causes service life short; Air quantity control can not reach optimal amount when regulating air quantity, obviously increases energy consumption, waste resource in use by the bigger control accuracy of its deviation.Usually wind-cooled cold-water air-conditioning unit can only be in environment temperature refrigeration more than 21 ℃, temperature during near 21 ℃ cooling fan close, this moment, condensing pressure was normal.When temperature when 21 ℃ arrive zubzero temperatures, even closing, cooling fan can not guarantee that condensing pressure is in normal condition, so wind-cooled cold-water air-conditioning unit can not use under such environment temperature, limited to the scope of application of wind-cooled cold-water air-conditioning unit.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of wind-cooled cold-water air-conditioning unit, the condensing pressure of wind-cooled cold-water air-conditioning unit still can be in normal condition in negative low temperature environment below 20 degrees centigrade, and its cooling fan is detachable, easy to maintenance, low energy consumption.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: wind-cooled cold-water air-conditioning unit of the present utility model comprises controller, compressor, air-side heat exchanger, reservoir, cooling fan, described compressor is communicated with described air-side heat exchanger, described air-side heat exchanger is communicated with reservoir, described compressor also is connected with the condensation pressure-difference valve, the described condensation pressure-difference valve other end is communicated with reservoir, and the pipeline between described air-side heat exchanger and the reservoir is provided with the condensation pressure regulation valve.
Further, described cooling fan is provided with stepless speed-regulating device.
Further, described stepless speed-regulating device is equipped with pressure sensor, and described pressure sensor is connected with controller.
The utility model is owing to adopt technique scheme, and wind-cooled cold-water air-conditioning unit can be used in operation as usual in the negative low temperature environment below 20 degrees centigrade, can annually use in the lower place of average temperature of the whole year like this, has enlarged the scope of application; Cooling fan such low temperature environment is out of service just can unload under, convenient for maintaining prolongs its life-span; The air quantity control structure that cooling fan adopts can provide needed air quantity more accurately, avoids the waste that causes because of control accuracy is low, realizes low energy consumption, and the raising efficiency economizes on resources.
Description of drawings
Fig. 1 is the fundamental diagram of a kind of novel air-cooled cold water air-conditioning unit of the utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, a kind of novel air-cooled cold water air-conditioning unit of the utility model comprises controller 1, compressor 2, air-side heat exchanger 3, reservoir 4, condensation pressure regulation valve 6, condensation pressure-difference valve 5, and is installed in the cooling fan 7 on the air-side heat exchanger 3.Condensation pressure-difference valve 5 place pipelines are as the bypass line of air-side heat exchanger 3, and its import is communicated with the outlet of compressor 2, and its outlet simultaneously is communicated with the import of reservoir 4; Condensation pressure regulation valve 6 is installed on the pipeline between air-side heat exchanger 3 and the reservoir 4, makes its import be communicated with the outlet of air-side heat exchanger 3, and its outlet is communicated with the import of reservoir 4.Because the pipeline during compressor 2 work in the outlet of compressor 2 can produce vibrations along with compressor 2 work, so condensation pressure regulation valve 6 is arranged between the import of the outlet of air-side heat exchanger 3 and reservoir 4, and then avoid the leakage problem, also for condensation pressure regulation valve 6 when the negative low temperature below 20 degrees centigrade, the condensing pressure that guarantees air-side heat exchanger 3 is in normal value and closes automatically.
When wind-cooled cold-water air-conditioning unit start work; controller 1 judges whether to open blower fan after feeding back by pressure detecting; save electric energy like this, also can not cause pressure protect, because the reaction of the sensor of control condensation temperature lags behind because of adopting condensation temperature to control fan.
When environment temperature descends gradually, the condensing pressure of unit is also descending, this moment, unit cooling fan 7 reduced the stability that rotating speed guarantees condensing pressure according to condensing pressure, when cooling fan 7 minimum speeds that drop to unit gradually when environment temperature also can't guarantee the setting value of condensing pressure, cooling fan 7 quits work, this moment, environment temperature also descended, after dropping to condensation pressure regulation valve 6 setting value lower limits, condensing pressure self closes automatically, disconnection air-side heat exchanger 3 is connected with reservoir 4, this moment, the exhaust of compressor 2 only directly was bypassed to reservoir 4 supply heat exchangers by condensation pressure-difference valve 5, thereby guaranteed to control the condensing pressure of unit.Cooling fan 7 is out of service during this environment, can unload easily, is convenient to maintenance and prolongs its life-span.Thereby wind-cooled cold-water air-conditioning unit can be used in operation as usual in the negative low temperature environment below 20 degrees centigrade, can annually use in the lower place of average temperature of the whole year like this, has enlarged the scope of application.
Claims (3)
1, a kind of wind-cooled cold-water air-conditioning unit, comprise controller (1), compressor (2), air-side heat exchanger (3), reservoir (4), cooling fan (7), described compressor (2) is communicated with described air-side heat exchanger (3), described air-side heat exchanger (3) is communicated with reservoir (4), it is characterized in that: described compressor (2) also is connected with condensation pressure-difference valve (5), described condensation pressure-difference valve (5) other end is communicated with reservoir (4), and the pipeline between described air-side heat exchanger (3) and the reservoir (4) is provided with condensation pressure regulation valve (6).
2, according to the described wind-cooled cold-water air-conditioning of claim 1 unit, it is characterized in that: described cooling fan (7) is provided with stepless speed-regulating device.
3, according to the described wind-cooled cold-water air-conditioning of claim 2 unit, it is characterized in that: described stepless speed-regulating device is equipped with pressure sensor, and described pressure sensor is connected (1) with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140988 CN200986351Y (en) | 2006-12-13 | 2006-12-13 | Wind cooling cold water air-conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140988 CN200986351Y (en) | 2006-12-13 | 2006-12-13 | Wind cooling cold water air-conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200986351Y true CN200986351Y (en) | 2007-12-05 |
Family
ID=38915809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620140988 Expired - Lifetime CN200986351Y (en) | 2006-12-13 | 2006-12-13 | Wind cooling cold water air-conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200986351Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865552A (en) * | 2010-06-22 | 2010-10-20 | 合肥天鹅制冷科技有限公司 | Air conditioning equipment |
| CN101788214B (en) * | 2009-12-18 | 2012-08-22 | 艾默生网络能源有限公司 | Air conditioning condenser |
| CN102889706A (en) * | 2012-10-22 | 2013-01-23 | 合肥天鹅制冷科技有限公司 | Compression refrigeration condensation system with low-temperature startup and low-temperature operation |
| CN103575006A (en) * | 2013-11-25 | 2014-02-12 | 广东申菱空调设备有限公司 | Low-temperature refrigeration type air-cooling water chilling unit and control method thereof |
| CN103727625A (en) * | 2012-10-10 | 2014-04-16 | 珠海格力电器股份有限公司 | Starting control method and device for variable-frequency fan of condensing unit |
| CN104006486A (en) * | 2013-02-22 | 2014-08-27 | 珠海格力电器股份有限公司 | Operation control method and device for variable-frequency fan of condensing unit |
| CN110726263A (en) * | 2019-10-10 | 2020-01-24 | 合肥天鹅制冷科技有限公司 | Wide-temperature high-precision refrigerating device |
-
2006
- 2006-12-13 CN CN 200620140988 patent/CN200986351Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788214B (en) * | 2009-12-18 | 2012-08-22 | 艾默生网络能源有限公司 | Air conditioning condenser |
| CN101865552A (en) * | 2010-06-22 | 2010-10-20 | 合肥天鹅制冷科技有限公司 | Air conditioning equipment |
| CN103727625A (en) * | 2012-10-10 | 2014-04-16 | 珠海格力电器股份有限公司 | Starting control method and device for variable-frequency fan of condensing unit |
| CN102889706A (en) * | 2012-10-22 | 2013-01-23 | 合肥天鹅制冷科技有限公司 | Compression refrigeration condensation system with low-temperature startup and low-temperature operation |
| CN102889706B (en) * | 2012-10-22 | 2015-01-28 | 合肥天鹅制冷科技有限公司 | Compression refrigeration condensation system with low-temperature startup and low-temperature operation |
| CN104006486A (en) * | 2013-02-22 | 2014-08-27 | 珠海格力电器股份有限公司 | Operation control method and device for variable-frequency fan of condensing unit |
| CN104006486B (en) * | 2013-02-22 | 2019-02-05 | 珠海格力电器股份有限公司 | Operation control method and device for variable-frequency fan of condensing unit |
| CN103575006A (en) * | 2013-11-25 | 2014-02-12 | 广东申菱空调设备有限公司 | Low-temperature refrigeration type air-cooling water chilling unit and control method thereof |
| CN110726263A (en) * | 2019-10-10 | 2020-01-24 | 合肥天鹅制冷科技有限公司 | Wide-temperature high-precision refrigerating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG DUNAN MECHANICAL + ELECTRICAL SCIENCE CO. Free format text: FORMER OWNER: DUNAN ARTIFICIAL ENVIRONMENTAL APPARATUS CO., LTD., ZHEJIANG PROV. Effective date: 20090508 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090508 Address after: Zhuji City, Zhejiang province shop Town Industrial Zone, zip code: 311835 Patentee after: Zhejiang Dunan Electromechanical Technology Co.,Ltd. Address before: Zhejiang City, Zhejiang Province town of Zhuji industrial security zone environmental protection equipment Limited by Share Ltd, zip code: 311835 Patentee before: Zhejiang Dun'an Artificial Environment Equipment Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071205 |
|
| EXPY | Termination of patent right or utility model |