CN101008535A - Low-temperature heating bypass system of air source heat pump - Google Patents
Low-temperature heating bypass system of air source heat pump Download PDFInfo
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- CN101008535A CN101008535A CN 200710019633 CN200710019633A CN101008535A CN 101008535 A CN101008535 A CN 101008535A CN 200710019633 CN200710019633 CN 200710019633 CN 200710019633 A CN200710019633 A CN 200710019633A CN 101008535 A CN101008535 A CN 101008535A
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Abstract
The invention discloses an air heat pump low-temperature heating bypass system, wherein, there is a bypass electromagnetic valve in tube between the gas outlet and the reflux opening of compressor; a temperature and a pressure sensor at the reflux tube of compressor; the bypass electromagnetic control valve, temperature sensor, pressure sensor and the electromagnetic valve controller are electrically connected. The invention checks the pressure and temperature of reflux tube of compressor in heating mode, the electromagnetic valve controller via the pressure and temperature to control the switch frequency of electromagnetic valve, control the reflux pressure and overheat degree, to make the compressor and refrigerator work normally in low-temperature and ultra-low-temperature condition. And the invention engages the coolant reflux with area of heat exchanger, without refluxing the coolant and damaging the compressor.
Description
Technical field
The invention belongs to air-conditioning technical field.Be specifically related to a kind of low-temperature heating bypass system of air source heat pump.
Background technology
Air-source heat pump air conditioning system is applied widely at air conditioner industry, mainly is the convenience because of its good heat exchange property and installation site.But in the winter time along with the reduction of outdoor environment temperature, the evaporator operation condition of conventional air-conditioning system progressively worsens, the progressively decay of evaporability, make the refrigeration system evaporation insufficient, cause compressor the liquid phenomenon to occur back, the compressor air suction mouth pressure descends simultaneously, reliability of system operation can't effectively be ensured, even cause compressor to burn phenomenon.
Summary of the invention
The purpose of this invention is to provide a kind of low-temperature heating bypass system of air source heat pump, overcome the above-mentioned defective of existing air-source heat pump air conditioning system.
The present invention realizes with following technical scheme: a kind of low-temperature heating bypass system of air source heat pump, the cooling cycle system of comprising by compressor, gas-liquid separator, four-way change-over valve, outdoor heat exchanger, heat expansion valve, heat check valve, refrigeration expansion valve, refrigeration check valve and indoor heat exchanger being formed, it is characterized in that in air source heat pump system device one bypass solenoid valve in the pipeline between the exhaust outlet of compressor and return-air mouth, on the compressor return air pipeline, locate to be equipped with the temperature that detects return line and the temperature sensor and the pressure sensor of pressure.Wherein bypass solenoid electric valve, temperature sensor and pressure sensor and solenoid valve controller are by being electrically connected.Temperature sensor and pressure sensor detect and heat state lower compression machine return line pressure and temperature parameter in the winter time, parameter is sent to solenoid valve controller, solenoid valve controller is according to the pressure of detected compressor return air pipeline, temperature parameter carries out logic analysis, and then control the Electromagnetic Control opening of valves or close frequency, guarantee the back pressure and the degree of superheat of control system, compressor and refrigeration system can normally be moved under low temperature and ultralow temperature operating mode, ensure simultaneously to be complementary, the phenomenon that liquid refrigerant returns liquid can not occur by the refrigerant flow of outdoor heat exchanger (evaporimeter) and the exchange capability of heat of area under the respective environment condition of heat exchanger.Realize net for air-source heat pump units reliability service and effective defrosting number of times that reduces under the low-temperature heating state, improve effective heating capacity.
Described solenoid electric valve is common solenoid electric valve or plurality of electromagnetic valve.
The invention has the beneficial effects as follows: be complementary by the refrigerant flow of outdoor heat exchanger and the area exchange capability of heat of heat exchanger, liquid refrigerant do not occur and return the liquid phenomenon, avoid the generation of compressor damage phenomenon; Realize net for air-source heat pump units reliability service and reduce the defrosting number of times under the low-temperature heating state, improve effective heating capacity.
Description of drawings
The present invention is described in more detail below in conjunction with drawings and Examples.
Accompanying drawing is a structural representation of the present invention.
Among the figure: 1, compressor, 2, gas-liquid separator, 3, temperature sensor, 4, pressure sensor, 5, solenoid electric valve, 6, four-way change-over valve, 7, solenoid valve controller, 8, outdoor heat exchanger, 9, heat expansion valve, 10, heat check valve, 11, refrigeration expansion valve, 12, the refrigeration check valve, 13, indoor heat exchanger, → be kind of refrigeration cycle ,-→ kind of refrigeration cycle.
The specific embodiment
As shown in drawings, cooling cycle system adopts a by-pass collar that adapts with evaporation load.Whole system is by compressor 1, gas-liquid separator 2, temperature sensor 3, pressure sensor 4, solenoid electric valve 5, four-way change-over valve 6, solenoid valve controller 7, outdoor heat exchanger 8, heat expansion valve 9, heat check valve 10, refrigeration expansion valve 11, refrigeration check valve 12 and indoor heat exchanger 13 form.Adopt a common solenoid electric valve, play the by-pass governing effect, be installed in the pipeline between compressor 1 exhaust outlet and the return-air mouth; Temperature sensor 3 and pressure sensor 4 are contained on the return line of compressor 1, are used to measure the pressure and the temperature parameter of compressor return air pipeline; Wherein temperature sensor 3, pressure sensor 4 and solenoid electric valve 5 all are electrically connected with solenoid valve controller 7.
The course of work is: when system operates in the heating process, temperature sensor 3, pressure sensor 4 is measured the pressure and the temperature parameter of compressor 1 return line, and parameter signal is sent to solenoid valve controller 7, solenoid valve controller 7 is according to pressure, the temperature of the compressor return air pipeline that detects, and sequencing ground control solenoid electric valve 5 opens or cuts out frequency, thus the back pressure of control system and the return-air degree of superheat, realize Self Adaptive Control, guarantee compressor normally, operation reliably.Ensure simultaneously to be complementary, the phenomenon that cold-producing medium returns liquid can not occur by the refrigerant flow of outdoor heat exchanger (evaporimeter) and the exchange capability of heat of area under the respective environment condition of heat exchanger.Realize net for air-source heat pump units reliability service and effective defrosting number of times that reduces under the low-temperature heating state, improve effective heating capacity.
Claims (2)
1, a kind of low-temperature heating bypass system of air source heat pump, comprise by compressor (1), gas-liquid separator (2), four-way change-over valve (6), outdoor heat exchanger (8), heat expansion valve (9), heat check valve (10), refrigeration expansion valve (11), the cooling cycle system that refrigeration check valve (12) and indoor heat exchanger (13) are formed, it is characterized in that device leads to solenoid electric valve (5) on one side in the pipeline between (1) exhaust outlet of compressor in air source heat pump system and the return-air mouth, the temperature and the temperature sensor (3) and the pressure sensor (4) of pressure, wherein the bypass solenoid electric valve (5) that detect return line are housed on compressor (1) return line, temperature sensor (3) and pressure sensor (4) and solenoid valve controller (7) are by being electrically connected.
2, low-temperature heating bypass system of air source heat pump according to claim 1 is characterized in that described solenoid electric valve is that common magnetic valve or plurality of electromagnetic valve formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710019633 CN101008535A (en) | 2007-01-24 | 2007-01-24 | Low-temperature heating bypass system of air source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710019633 CN101008535A (en) | 2007-01-24 | 2007-01-24 | Low-temperature heating bypass system of air source heat pump |
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| Publication Number | Publication Date |
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| CN101008535A true CN101008535A (en) | 2007-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200710019633 Pending CN101008535A (en) | 2007-01-24 | 2007-01-24 | Low-temperature heating bypass system of air source heat pump |
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| CN (1) | CN101008535A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384602A (en) * | 2010-08-30 | 2012-03-21 | 珠海格力电器股份有限公司 | Low-temperature heating air conditioner |
| CN102563964A (en) * | 2011-12-30 | 2012-07-11 | 安徽京奥制冷设备有限公司 | Household integrated multi-functional air source heat pump type air conditioning unit |
| CN102128524B (en) * | 2010-01-13 | 2012-11-21 | 珠海格力电器股份有限公司 | Heat pump with preheating function and preheating method thereof |
| CN104896821A (en) * | 2015-05-19 | 2015-09-09 | 合肥天鹅制冷科技有限公司 | Refrigerating system energy adjusting device |
| CN107084547A (en) * | 2017-04-24 | 2017-08-22 | 青岛海尔空调电子有限公司 | Air-conditioning system and the control method for air-conditioning system |
| CN109506384A (en) * | 2018-10-30 | 2019-03-22 | 青岛沃润达新能源科技有限公司 | A kind of vortex type air source heat pump system having both refrigerating function based on heating |
| CN109539401A (en) * | 2018-11-13 | 2019-03-29 | 珠海格力电器股份有限公司 | A kind of air-conditioning and control method |
| CN109631381A (en) * | 2018-11-09 | 2019-04-16 | 青岛沃润达新能源科技有限公司 | A kind of vortex type air source heat pump system of the simultaneous refrigeration of heating |
| CN109812900A (en) * | 2019-03-22 | 2019-05-28 | 广东美的制冷设备有限公司 | Air conditioner, progress control method and computer readable storage medium |
| CN110671834A (en) * | 2019-09-23 | 2020-01-10 | 广东长菱空调冷气机制造有限公司 | Heat pump system and defrosting method thereof |
| CN111174336A (en) * | 2020-01-09 | 2020-05-19 | 珠海格力电器股份有限公司 | Air conditioner external unit, air conditioner and air conditioner control method |
| CN111561768A (en) * | 2020-05-06 | 2020-08-21 | 广东美的暖通设备有限公司 | Operation control method of air conditioner, air conditioner and readable storage medium |
| CN114234468A (en) * | 2021-12-15 | 2022-03-25 | 广东芬尼克兹节能设备有限公司 | Heat pump device control method, device, unit, computer equipment and storage medium |
| CN115717787A (en) * | 2022-11-09 | 2023-02-28 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioner |
-
2007
- 2007-01-24 CN CN 200710019633 patent/CN101008535A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128524B (en) * | 2010-01-13 | 2012-11-21 | 珠海格力电器股份有限公司 | Heat pump with preheating function and preheating method thereof |
| CN102384602B (en) * | 2010-08-30 | 2013-08-07 | 珠海格力电器股份有限公司 | Low-temperature heating air conditioner |
| CN102384602A (en) * | 2010-08-30 | 2012-03-21 | 珠海格力电器股份有限公司 | Low-temperature heating air conditioner |
| CN102563964A (en) * | 2011-12-30 | 2012-07-11 | 安徽京奥制冷设备有限公司 | Household integrated multi-functional air source heat pump type air conditioning unit |
| CN104896821A (en) * | 2015-05-19 | 2015-09-09 | 合肥天鹅制冷科技有限公司 | Refrigerating system energy adjusting device |
| CN107084547B (en) * | 2017-04-24 | 2023-04-25 | 青岛海尔空调电子有限公司 | Air conditioning system and control method for air conditioning system |
| CN107084547A (en) * | 2017-04-24 | 2017-08-22 | 青岛海尔空调电子有限公司 | Air-conditioning system and the control method for air-conditioning system |
| CN109506384A (en) * | 2018-10-30 | 2019-03-22 | 青岛沃润达新能源科技有限公司 | A kind of vortex type air source heat pump system having both refrigerating function based on heating |
| CN109631381A (en) * | 2018-11-09 | 2019-04-16 | 青岛沃润达新能源科技有限公司 | A kind of vortex type air source heat pump system of the simultaneous refrigeration of heating |
| CN109539401A (en) * | 2018-11-13 | 2019-03-29 | 珠海格力电器股份有限公司 | A kind of air-conditioning and control method |
| CN109539401B (en) * | 2018-11-13 | 2023-09-12 | 珠海格力电器股份有限公司 | Air conditioner and control method |
| CN109812900A (en) * | 2019-03-22 | 2019-05-28 | 广东美的制冷设备有限公司 | Air conditioner, progress control method and computer readable storage medium |
| CN110671834A (en) * | 2019-09-23 | 2020-01-10 | 广东长菱空调冷气机制造有限公司 | Heat pump system and defrosting method thereof |
| CN111174336A (en) * | 2020-01-09 | 2020-05-19 | 珠海格力电器股份有限公司 | Air conditioner external unit, air conditioner and air conditioner control method |
| CN111174336B (en) * | 2020-01-09 | 2024-04-05 | 珠海格力电器股份有限公司 | Air conditioner external unit, air conditioner and air conditioner control method |
| CN111561768B (en) * | 2020-05-06 | 2021-12-14 | 广东美的暖通设备有限公司 | Operation control method of air conditioner, air conditioner and readable storage medium |
| CN111561768A (en) * | 2020-05-06 | 2020-08-21 | 广东美的暖通设备有限公司 | Operation control method of air conditioner, air conditioner and readable storage medium |
| CN114234468A (en) * | 2021-12-15 | 2022-03-25 | 广东芬尼克兹节能设备有限公司 | Heat pump device control method, device, unit, computer equipment and storage medium |
| CN114234468B (en) * | 2021-12-15 | 2023-08-18 | 广东芬尼克兹节能设备有限公司 | Heat pump device control method, device, unit, computer equipment and storage medium |
| CN115717787A (en) * | 2022-11-09 | 2023-02-28 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioner |
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