CN101738029A - Air-cooling chilled water unit capable of running under low temperature - Google Patents
Air-cooling chilled water unit capable of running under low temperature Download PDFInfo
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- CN101738029A CN101738029A CN200910186656A CN200910186656A CN101738029A CN 101738029 A CN101738029 A CN 101738029A CN 200910186656 A CN200910186656 A CN 200910186656A CN 200910186656 A CN200910186656 A CN 200910186656A CN 101738029 A CN101738029 A CN 101738029A
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Abstract
An air-cooling chilled water unit capable of running under low temperature is characterized in that a compressor is connected with a condensing pressure adjusting valve, the condensing pressure adjusting valve is connected with an air-cooling condenser, the air-cooling condenser is connected with a check valve, the check valve is connected with a liquid reservoir, a liquid reservoir pressure adjusting valve is in a parallel connection with a condensing pressure by-pass valve between the compressor and the liquid reservoir; and the liquid reservoir is connected with a level glass. The technical effect of the invention is as follows: the condensing pressure adjusting valve, the condensing pressure by-pass valve and the liquid reservoir pressure adjusting valve are used to adjust the flow of the refrigerant which passes through a by-pass of the air-cooling condenser condensing pressure by-pass valve and a by-pass of the liquid reservoir pressure adjusting valve to stabilize the condensing pressure and liquid reservoir pressure of the air-cooling chilled water unit which runs under low temperature and ensure that the air-cooling chilled water unit can work normally under low temperature so as to provide chilled water for cooling the heating device.
Description
Technical field
The present invention relates to a kind of wind-cooled cold-water unit, but relate in particular to the wind-cooled cold-water unit of operation under a kind of low temperature environment.
Background technology
Existing technology generally adopts the water-cooled handpiece Water Chilling Units to produce chilled water, is the heat-producing device cooling, makes it can operate as normal.But for the cooling requirement of some special installations, as mobile heat-producing device, because no external water source is provided for cooling, so must adopt the wind-cooled cold-water unit.But when environment temperature was lower than 0 ℃, general wind-cooled cold-water unit can not carry out work, caused condensing pressure low excessively because ambient temperature is low excessively, made system's height pressure side can not set up pressure reduction, to such an extent as to unit is forced to quit work.
Summary of the invention
But the object of the present invention is to provide under a kind of low temperature environment the wind-cooled cold-water unit of operation, this wind-cooled cold-water unit can normally operation under low temperature environment, for the heat-producing device of needs cooling provides chilled water to lower the temperature, makes it can operate as normal.
The present invention is achieved like this, it comprises evaporimeter, expansion valve, vapour liquid separator, device for drying and filtering, liquid-sighting glass, compressor, the reservoir pressure control valve, the condensing pressure by-passing valve, reservoir, the condensation pressure regulation valve, check valve, air-cooled condenser, condensation fan, it is characterized in that compressor connects the condensation pressure regulation valve, the condensation pressure regulation valve connects air-cooled condenser, air-cooled condenser connects check valve, check valve connects reservoir, reservoir pressure control valve and condensing pressure by-passing valve also are connected in parallel between compressor and reservoir, reservoir connects liquid-sighting glass, liquid-sighting glass connects device for drying and filtering, device for drying and filtering connects expansion valve, expansion valve connects evaporimeter, evaporimeter connects vapour liquid separator, vapour liquid separator connects compressor, the air-cooled condenser next door is connected with condensation fan, and the condensing pressure by-passing valve connects the reservoir pressure control valve.
Technique effect of the present invention is: utilize the effect of condensation pressure regulation valve, condensing pressure by-passing valve and reservoir pressure control valve to regulate condensing pressure and the reservoir pressure of stablizing the wind-cooled cold-water unit of operation under the low temperature environment by the refrigerant flow on air-cooled condenser condensing pressure by-passing valve bypass and reservoir pressure by pass around regulator road, make the wind-cooled cold-water unit to cool for heat-producing device provides chilled water in operate as normal under the low temperature environment.
Description of drawings
Fig. 1 is a fundamental diagram of the present invention.
Evaporimeter 2, expansion valve 3, vapour liquid separator 4, device for drying and filtering 5, liquid-sighting glass 6, compressor 7, reservoir pressure control valve 8, condensing pressure by-passing valve 9, reservoir 10, condensation pressure regulation valve 11, check valve 12, air-cooled condenser 13, condensation fan in the drawings, 1,
The specific embodiment
As shown in Figure 1, the present invention is achieved like this, it comprises evaporimeter 1, expansion valve 2, vapour liquid separator 3, device for drying and filtering 4, liquid-sighting glass 5, compressor 6, reservoir pressure control valve 7, condensing pressure by-passing valve 8, reservoir 9, condensation pressure regulation valve 10, check valve 11, air-cooled condenser 12, condensation fan 13, it is characterized in that compressor 6 connects condensation pressure regulation valve 10, condensation pressure regulation valve 10 connects air-cooled condenser 12, air-cooled condenser 12 connects check valve 11, check valve 11 connects reservoir 9, reservoir pressure control valve 7 and condensing pressure by-passing valve 8 also are connected in 9 of compressor 6 and reservoirs in parallel, reservoir 9 connects liquid-sighting glass 5, liquid-sighting glass 5 connects device for drying and filtering 4, device for drying and filtering 4 connects expansion valve 2, expansion valve 2 connects evaporimeter 1, evaporimeter 1 connects vapour liquid separator 3, vapour liquid separator 3 connects compressor 6, and air-cooled condenser 12 next doors are connected with condensation fan 13, and condensing pressure by-passing valve 8 connects reservoir pressure control valve 7.Difference minimum condensing pressure of initialization system and minimum reservoir pressure on condensation pressure regulation valve 10 and reservoir pressure control valve 7.
When the environment temperature height, when system condensing pressure is higher than setting pressure, condensation pressure regulation valve 10 standard-sized sheets, condensing pressure by-passing valve 8 and reservoir pressure control valve 7 complete shut-downs.Cold-producing medium compresses the refrigerant gas that becomes HTHP and is discharged from compressor 6 after, enter air-cooled condenser 12 by condensation pressure regulation valve 10, in air-cooled condenser 12, be condensed into liquid refrigerant, through check valve 11 enter again reservoir 9, after through liquid-sighting glass 5, device for drying and filtering 4, expansion valve 2, after through expansion valve 2 throttlings, enter evaporimeter 1 absorption heat, be evaporated to the gaseous refrigerant of low-temp low-pressure after behind the vapour liquid separator 3, sucked compressor 6 once more, so circulation.
When environment temperature is reduced to system condensing pressure when being lower than setting pressure gradually, condensation pressure regulation valve 10 apertures reduce gradually, after cold-producing medium compresses in compressor 6 and discharges, a part enters air-cooled condenser 12 by condensation pressure regulation valve 10, in air-cooled condenser 12, be condensed into liquid refrigerant, enter reservoir 9 again through check valve 11; Another part then enters reservoir 9 by condensing pressure by-passing valve 8 bypasses and reservoir control valve 7 bypasses, at this moment, reservoir pressure control valve 7 compares according to the setting pressure of reservoir pressure with self, regulate the aperture of reservoir pressure control valve 7, equiulbrium flow is crossed the cold-producing medium on condensing pressure by-passing valve bypass and reservoir pressure by pass around regulator road, makes reservoir pressure be stabilized on the setting pressure.After cold-producing medium enters reservoir 9, pass through liquid-sighting glass 5, device for drying and filtering 4 again after after 2 throttlings of overexpansion valve, enter evaporimeter 1 and absorb heat, the gaseous refrigerant that is evaporated to low-temp low-pressure is after behind the vapour liquid separator 3, sucked compressor 6 once more, so circulation.
Claims (1)
1. but the low temperature environment wind-cooled cold-water unit of operation down, it comprises evaporimeter, expansion valve, vapour liquid separator, device for drying and filtering, liquid-sighting glass, compressor, the reservoir pressure control valve, the condensing pressure by-passing valve, reservoir, the condensation pressure regulation valve, check valve, air-cooled condenser, condensation fan, it is characterized in that compressor connects the condensation pressure regulation valve, the condensation pressure regulation valve connects air-cooled condenser, air-cooled condenser connects check valve, check valve connects reservoir, reservoir pressure control valve and condensing pressure by-passing valve also are connected in parallel between compressor and reservoir, reservoir connects liquid-sighting glass, liquid-sighting glass connects device for drying and filtering, device for drying and filtering connects expansion valve, expansion valve connects evaporimeter, evaporimeter connects vapour liquid separator, vapour liquid separator connects compressor, the air-cooled condenser next door is connected with condensation fan, and the condensing pressure by-passing valve connects the reservoir pressure control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186656A CN101738029A (en) | 2009-12-09 | 2009-12-09 | Air-cooling chilled water unit capable of running under low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186656A CN101738029A (en) | 2009-12-09 | 2009-12-09 | Air-cooling chilled water unit capable of running under low temperature |
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| CN101738029A true CN101738029A (en) | 2010-06-16 |
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| CN200910186656A Pending CN101738029A (en) | 2009-12-09 | 2009-12-09 | Air-cooling chilled water unit capable of running under low temperature |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986062A (en) * | 2010-11-15 | 2011-03-16 | 大连三洋压缩机有限公司 | Condensation temperature-adjusting refrigeration system |
| CN105423657A (en) * | 2015-12-18 | 2016-03-23 | 珠海格力电器股份有限公司 | Coolant cooling device, air conditioning system and control method |
| CN105698424A (en) * | 2016-04-18 | 2016-06-22 | 迪邦仕冷却技术（苏州）有限公司 | Ultralow-temperature refrigeration type single-cooling split air conditioner and ultralow-temperature refrigeration method thereof |
| CN105972718A (en) * | 2016-05-11 | 2016-09-28 | 广州大学 | Double-cold-source two-stage-evaporation-dehumidification fresh air machine with heat recovery function |
| CN107461952A (en) * | 2017-08-02 | 2017-12-12 | 阿尔西制冷工程技术（北京）有限公司 | Low form cooling by wind and low form refrigeration unit |
| CN108469134A (en) * | 2018-04-17 | 2018-08-31 | 南京佳力图机房环境技术股份有限公司 | A kind of modified air-cooled condenser and its control method |
| CN109798689A (en) * | 2019-03-01 | 2019-05-24 | 广东纽恩泰新能源科技发展有限公司 | A kind of heat pump system capacity regulation method |
| CN110953739A (en) * | 2019-12-09 | 2020-04-03 | 珠海格力电器股份有限公司 | Control method of refrigeration system, refrigeration system and refrigerator |
| CN115164428A (en) * | 2022-07-07 | 2022-10-11 | 四川长虹空调有限公司 | Air-cooled chiller system and control method thereof |
| CN115200242A (en) * | 2022-08-08 | 2022-10-18 | 上海燃气工程设计研究有限公司 | Constant-temperature water chilling unit |
| CN115265017A (en) * | 2022-07-27 | 2022-11-01 | 深圳市英维克科技股份有限公司 | Water chilling unit, operation control method, storage medium, control device and equipment |
-
2009
- 2009-12-09 CN CN200910186656A patent/CN101738029A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986062A (en) * | 2010-11-15 | 2011-03-16 | 大连三洋压缩机有限公司 | Condensation temperature-adjusting refrigeration system |
| CN101986062B (en) * | 2010-11-15 | 2012-10-17 | 大连三洋压缩机有限公司 | Condensation temperature-adjusting refrigeration system |
| CN105423657A (en) * | 2015-12-18 | 2016-03-23 | 珠海格力电器股份有限公司 | Coolant cooling device, air conditioning system and control method |
| CN105698424B (en) * | 2016-04-18 | 2018-03-13 | 迪邦仕冷却技术（苏州）有限公司 | A kind of super low temperature refrigeration method |
| CN105698424A (en) * | 2016-04-18 | 2016-06-22 | 迪邦仕冷却技术（苏州）有限公司 | Ultralow-temperature refrigeration type single-cooling split air conditioner and ultralow-temperature refrigeration method thereof |
| CN105972718A (en) * | 2016-05-11 | 2016-09-28 | 广州大学 | Double-cold-source two-stage-evaporation-dehumidification fresh air machine with heat recovery function |
| CN107461952A (en) * | 2017-08-02 | 2017-12-12 | 阿尔西制冷工程技术（北京）有限公司 | Low form cooling by wind and low form refrigeration unit |
| CN108469134A (en) * | 2018-04-17 | 2018-08-31 | 南京佳力图机房环境技术股份有限公司 | A kind of modified air-cooled condenser and its control method |
| CN108469134B (en) * | 2018-04-17 | 2023-06-27 | 南京佳力图机房环境技术股份有限公司 | Improved air-cooled condenser and control method thereof |
| CN109798689A (en) * | 2019-03-01 | 2019-05-24 | 广东纽恩泰新能源科技发展有限公司 | A kind of heat pump system capacity regulation method |
| CN110953739A (en) * | 2019-12-09 | 2020-04-03 | 珠海格力电器股份有限公司 | Control method of refrigeration system, refrigeration system and refrigerator |
| CN115164428A (en) * | 2022-07-07 | 2022-10-11 | 四川长虹空调有限公司 | Air-cooled chiller system and control method thereof |
| CN115265017A (en) * | 2022-07-27 | 2022-11-01 | 深圳市英维克科技股份有限公司 | Water chilling unit, operation control method, storage medium, control device and equipment |
| CN115200242A (en) * | 2022-08-08 | 2022-10-18 | 上海燃气工程设计研究有限公司 | Constant-temperature water chilling unit |
| WO2024032116A1 (en) * | 2022-08-08 | 2024-02-15 | 上海能源建设工程设计研究有限公司 | Constant-temperature water chilling unit |
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Application publication date: 20100616 |