CN201373617Y - Air-cooled heat pump chiller - Google Patents
Air-cooled heat pump chiller Download PDFInfo
- Publication number
- CN201373617Y CN201373617Y CN200820224699U CN200820224699U CN201373617Y CN 201373617 Y CN201373617 Y CN 201373617Y CN 200820224699 U CN200820224699 U CN 200820224699U CN 200820224699 U CN200820224699 U CN 200820224699U CN 201373617 Y CN201373617 Y CN 201373617Y
- Authority
- CN
- China
- Prior art keywords
- outlet
- valve
- import
- water
- defrosting
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses an air-cooled heat pump chiller and relates to an air-cooled heat pump unit in the field of air conditioners. The existing air-cooled heat pump chiller generally has the disadvantages of long defrosting time, large energy consumption and low evaporation temperature, and even fails to operate normally. The utility model is characterized in that a defrosting solenoid valve is additionally arranged between overexpansion valves. Under defrosting working condition in winter, the defrosting solenoid valve is opened, a part of liquid of the bypass directly enters a water-side heat exchanger to be evaporated, the problems of larger pressure loss and longer duration time can be effectively prevented when the heating working condition of the chiller is switched into the defrosting working condition, and the chiller can be ensured to operate in a good condition under the defrosting working condition.
Description
Technical field
The present invention relates to the air-cooled heat pump water chiller-heater units in air-conditioning equipment field.
Background technology
At present, advantages such as Air-Cooled Heat Pump Unit is simple in structure with it, and it is little to take up space, and management maintenance is convenient, integration apparatus as the cold and heat source dual-purpose type has obtained using widely, and the type unit heating condition is down during operation in the winter time, carry out defrosting to wind side finned heat exchanger, ubiquity during defrosting: defrosting is not thorough, longer duration, evaporating pressure is low, and operation energy consumption increases, even evaporating temperature occurs and cross phenomenons such as low unit can't normally move.
Summary of the invention
In order to overcome the air-cooled heat pump water chiller-heater units disadvantage that the defrosting time is long during defrosting in the winter time, power consumption is big, the present invention makes air-cooled heat pump water chiller-heater units in the defrosting process, improves defrosting speed and evaporating temperature, effectively shortens the defrosting time.
The technical solution adopted for the present invention to solve the technical problems is:
Expansion valve b by the short circuit of defrosting magnetic valve, is improved the evaporating temperature of unit thus, and the resistance when shortening switches to the defrosting operating mode by heating condition has effectively shortened the defrosting time.
Each parts of unit connect by system's connecting line pipe arrangement, compressor (1) outlet is connected in the import of four-way change-over valve (2), the import of compressor (1) is connected in the outlet of gas-liquid separator (13), the import of gas-liquid separator (13) is connected in the outlet of four-way change-over valve (2), the outlet of reservoir (7) is connected in the import of device for drying and filtering (8), the outlet of device for drying and filtering (8) is connected to liquid-sighting glass (9) one end interfaces, another interface of liquid-sighting glass (9) is connected to respectively in the import of expansion valve a (10) and expansion valve b (11), the outlet of expansion valve a (10) is connected to the import of check valve a (5) respectively and the wind heat exchanging pipe of wind side finned heat exchanger (3) exports, the import of wind heat exchanging pipe is connected on the four-way change-over valve (2), the outlet of expansion valve b (11) is connected to respectively in the outlet of the import of check valve b (6) and water-side heat (12), the import of water-side heat (12) is connected on the four-way change-over valve (2), after being connected in parallel, the outlet of check valve a (5) and check valve b (6) is connected on the inlet ductwork of reservoir (7), defrosting magnetic valve (14) is with expansion valve b (11) short circuit, the water inlet of water-side heat (12) is connected water inlet pipe (15), and the delivery port of water-side heat (12) connects outlet pipe (16).
The workflow of air-cooled heat pump water chiller-heater units under the summer refrigeration mode:
By low temperature, the low pressure refrigerant gas in the compressor suction gas-liquid separator, discharge high temperature, gases at high pressure after the compressed machine supercharging, the process four-way change-over valve is to wind side finned heat exchanger, in wind side finned heat exchanger, make air circulation take away heat, be cooled to highly pressurised liquid, by check valve a through the heat exchange blower fan, flow into reservoir, at this moment, if uncooled gas is arranged, then fill in the liquid reservoir top.Refrigerant liquid is again by behind the reservoir bottom drying filter, remove moisture content and impurity, again via liquid-sighting glass to expansion valve b, highly pressurised liquid is after expansion valve b throttling, and puffing becomes cold-producing medium gas, the liquid mixture of low temperature, low pressure, enters in the water-side heat then, at this, the cold-producing medium vaporization of in the water-side heat sleeve pipe, absorbing heat, thus with the air conditioner water cooling, reach instructions for use.Low-pressure gas comes out from water-side heat, comes out in gas-liquid separator behind four-way change-over valve, to the compressor air suction mouth, and guarantees back that the fluid of compressor all is a gas through gas-liquid separator.So far, finish a kind of refrigeration cycle.
Air-cooled heat pump water chiller-heater units is the workflow under the heating mode in the winter time:
When unit heated, the defrosting magnetic valve is in closed
1State, compressor sucks low temperature, low pressure refrigerant gas in the gas-liquid separator, discharge high temperature, gases at high pressure after the compressed machine supercharging, the process four-way change-over valve is to water-side heat, high temperature, gases at high pressure heat release are cooled to highly pressurised liquid in water-side heat, thereby, reach instructions for use with the air conditioner water heating.Highly pressurised liquid flows into reservoir by check valve b, at this moment, if uncooled gas is arranged, then fills in the liquid reservoir top.Liquid is in the reservoir bottom, behind the drying filter, remove moisture content and impurity, again via liquid-sighting glass to expansion valve a, highly pressurised liquid is after the expansion valve throttling, puffing becomes cold-producing medium gas, the liquid mixture of low temperature, low pressure, enter then in the wind side finned heat exchanger, at this, the cold-producing medium vaporization of in wind side finned heat exchanger, absorbing heat, make air circulation and copper pipe is outer by the heat exchange blower fan, thermal source is provided.Low temperature, low-pressure gas vaporize from the wind heat exchanger, in gas-liquid separator, to the compressor air suction mouth, and guarantee back that the fluid of compressor all is a gas through gas-liquid separator behind four-way change-over valve.So far, finish one and heat circulation.
Air-cooled heat pump water chiller-heater units is the workflow during defrosting under the heating mode in the winter time:
After unit heating operation a period of time, the beginning frosting of wind side finned heat exchanger (3) surface, set when reaching that unit enters the defrosting stage when requiring, heat exchange blower fan this moment (4) is out of service, compressor (1) operation, defrosting magnetic valve this moment (14) is opened, by discharging high temperature after compressor (1) supercharging, gases at high pressure, process four-way change-over valve (2) are to wind side finned heat exchanger (3), with the white melting layer on wind side finned heat exchanger (3) surface, be cooled to highly pressurised liquid this moment, by check valve a (5), flow into reservoir (7), at this moment, if uncooled gas is arranged, then fill in reservoir (7) top.Liquid is again by behind reservoir (7) the bottom drying filter (8), remove moisture content and impurity, back via liquid-sighting glass (9) again to expansion valve b (11), because water-to-water heat exchanger (12) is a high pressure under heating condition, to be converted to low pressure through expansion valve b (11) during defrosting, this moment, pressure was bigger, expansion valve b (11) wants throttling, step-down, be difficult to finish at short notice, open defrosting magnetic valve (14) at this moment, allow a part of liquid refrigerant, directly enter water-side heat (12) heat absorption evaporation, (can make the very fast evaporation of cold-producing medium because water temperature is higher when heating, improve evaporating temperature, avoided only by the expansion valve throttling, the phenomenon that the step-down build-up of pressure is low, thus the effect that has has shortened the defrosting time, low-pressure gas comes out from water-side heat (12), to gas-liquid separator (13), to compressor (1) air entry, and guarantee back that the fluid of compressor all is a gas through cross valve (2) through gas-liquid separator (13).So far, finish a defrosting circulation.
Air-cooled heat pump water chiller-heater units has effectively improved the evaporating temperature of unit by set up a defrosting magnetic valve in machine set system, has shortened the defrosting time, avoided unit under the defrosting operating mode, the defrosting time is long, and power consumption is big, the phenomenon that evaporating temperature is low guarantees the efficient defrosting of unit.
Description of drawings
Accompanying drawing is the system schematic of air-cooled heat pump water chiller-heater units of the present invention.
Among the figure: 1-compressor, 2-four-way change-over valve, 3-wind side finned heat exchanger, 4-heat exchange blower fan, 5-check valve a, 6-check valve b, the 7-reservoir, 8-device for drying and filtering, 9-liquid-sighting glass, 10-expansion valve a, 11-expansion valve b, 12-water-side heat, the 13-gas-liquid separator, 14-defrosting magnetic valve, 15-water inlet pipe, 16-outlet pipe.
The specific embodiment
As shown in drawings, each parts of unit connect by system's connecting line pipe arrangement, compressor 1 outlet is connected in the import of four-way change-over valve 2, the import of compressor 1 is connected in the outlet of gas-liquid separator 13, the import of gas-liquid separator 13 is connected in the outlet of four-way change-over valve 2, the outlet of reservoir 7 is connected in the import of device for drying and filtering 8, the outlet of device for drying and filtering 8 is connected to liquid-sighting glass 9 one end interfaces, another interface of liquid-sighting glass 9 is connected to respectively in the import of expansion valve a10 and expansion valve b11, the outlet of expansion valve a10 is connected to the import of check valve a5 respectively and the wind heat exchanging pipe of wind side finned heat exchanger 3 exports, the wind heat exchanging pipe
2Import is connected on the four-way change-over valve 2, the outlet of expansion valve b11 is connected to respectively in the outlet of the import of check valve b6 and water-side heat 12, the import of water-side heat 12 is connected on the four-way change-over valve 2, after being connected in parallel, the outlet of check valve a5 and check valve b6 is connected on the inlet ductwork of reservoir 7, defrosting magnetic valve 14 is with expansion valve b11 short circuit, the water inlet of water-side heat 12 is connected water inlet pipe 15, and the delivery port of water-side heat 12 connects outlet pipe 16.
Claims (1)
1, air-cooled heat pump water chiller-heater units, mainly comprise: compressor (1), four-way change-over valve (2), wind side finned heat exchanger (3), heat exchange blower fan (4), check valve a (5), check valve b (6), reservoir (7), device for drying and filtering (8), liquid-sighting glass (9), expansion valve a (10), expansion valve b (11), water-side heat (12), gas-liquid separator (13), defrosting magnetic valve (14), water inlet pipe (15), outlet pipe (16) and system's connecting line, wherein the unlatching of defrosting magnetic valve (14) is by compressor, the heat exchange blower fan is controlled, it is characterized in that: each parts of unit connect by system's connecting line pipe arrangement, compressor (1) outlet is connected in the import of four-way change-over valve (2), the import of compressor (1) is connected in the outlet of gas-liquid separator (13), the import of gas-liquid separator (13) is connected in the outlet of four-way change-over valve (2), the outlet of reservoir (7) is connected in the import of device for drying and filtering (8), the outlet of device for drying and filtering (8) is connected to liquid-sighting glass (9) one end interfaces, another interface of liquid-sighting glass (9) is connected to respectively in the import of expansion valve a (10) and expansion valve b (11), the outlet of expansion valve a (10) is connected to the import of check valve a (5) respectively and the wind heat exchanging pipe of wind side finned heat exchanger (3) exports, the import of wind heat exchanging pipe is connected on the four-way change-over valve (2), the outlet of expansion valve b (11) is connected to respectively in the outlet of the import of check valve b (6) and water-side heat (12), the import of water-side heat (12) is connected on the four-way change-over valve (2), after being connected in parallel, the outlet of check valve a (5) and check valve b (6) is connected on the inlet ductwork of reservoir (7), defrosting magnetic valve (14) is with expansion valve b (11) short circuit, the water inlet of water-side heat (12) is connected water inlet pipe (15), and the delivery port of water-side heat (12) connects outlet pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820224699U CN201373617Y (en) | 2008-11-27 | 2008-11-27 | Air-cooled heat pump chiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820224699U CN201373617Y (en) | 2008-11-27 | 2008-11-27 | Air-cooled heat pump chiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373617Y true CN201373617Y (en) | 2009-12-30 |
Family
ID=41499703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820224699U Expired - Fee Related CN201373617Y (en) | 2008-11-27 | 2008-11-27 | Air-cooled heat pump chiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373617Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896690A (en) * | 2015-06-04 | 2015-09-09 | 广东美的制冷设备有限公司 | Air conditioner, control method, control system and air conditioner system |
| CN106839510A (en) * | 2015-12-04 | 2017-06-13 | 无锡市汉马空调与通风设备有限公司 | A kind of air-cooled heat pump trilogy supply air conditioner circulating system of waste heat recovery |
| CN107036349A (en) * | 2017-06-10 | 2017-08-11 | 烟台大学 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
| CN107747825A (en) * | 2017-08-28 | 2018-03-02 | 浙江大学 | A kind of bridge-type two-way heat regenerative system of heat pump |
| CN111435045A (en) * | 2019-01-14 | 2020-07-21 | 青岛海尔空调电子有限公司 | Air conditioner heat pump system |
| CN112050498A (en) * | 2020-09-16 | 2020-12-08 | 浙江正理生能科技有限公司 | Defrosting method for heat pump unit |
| CN114087747A (en) * | 2020-07-30 | 2022-02-25 | 广东美的暖通设备有限公司 | Control method and control device of air conditioning system, controller and air conditioning system |
-
2008
- 2008-11-27 CN CN200820224699U patent/CN201373617Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896690A (en) * | 2015-06-04 | 2015-09-09 | 广东美的制冷设备有限公司 | Air conditioner, control method, control system and air conditioner system |
| CN106839510A (en) * | 2015-12-04 | 2017-06-13 | 无锡市汉马空调与通风设备有限公司 | A kind of air-cooled heat pump trilogy supply air conditioner circulating system of waste heat recovery |
| CN107036349A (en) * | 2017-06-10 | 2017-08-11 | 烟台大学 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
| CN107747825A (en) * | 2017-08-28 | 2018-03-02 | 浙江大学 | A kind of bridge-type two-way heat regenerative system of heat pump |
| CN111435045A (en) * | 2019-01-14 | 2020-07-21 | 青岛海尔空调电子有限公司 | Air conditioner heat pump system |
| CN114087747A (en) * | 2020-07-30 | 2022-02-25 | 广东美的暖通设备有限公司 | Control method and control device of air conditioning system, controller and air conditioning system |
| CN112050498A (en) * | 2020-09-16 | 2020-12-08 | 浙江正理生能科技有限公司 | Defrosting method for heat pump unit |
| CN112050498B (en) * | 2020-09-16 | 2022-02-18 | 浙江正理生能科技有限公司 | Defrosting method for heat pump unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100552312C (en) | The air-conditioning unit device and the air-treatment method thereof of the wet segment processing of heat | |
| CN201373617Y (en) | Air-cooled heat pump chiller | |
| CN100533003C (en) | Air source solution heat pump device based on regeneration of reverse osmosis membrane solution | |
| CN202149545U (en) | Fresh air fan set with heat recovery and humidification functions | |
| CN103615836B (en) | A kind of screw total heat recovery air-cooled heat-pump air-conditioner group | |
| CN103940145A (en) | Multifunctional combined supply type integrated air conditioner unit for data rooms | |
| CN101398234A (en) | Low-temperature air-cooling heat pump unit | |
| CN201819476U (en) | Direct-current frequency conversion air-conditioner with waste heat recovery device | |
| CN201293488Y (en) | Frosting free air source heat pump | |
| CN207697428U (en) | A kind of pure electric automobile heat pump air conditioning system | |
| CN202885340U (en) | Energy supply device of high-efficiency energy tower | |
| CN102628626A (en) | Air conditioning dehumidification evaporative type condensation three-work-condition cold and hot water unit | |
| CN201449078U (en) | Air conditioning system applicable to communication base station | |
| CN204987596U (en) | Air source heat pump air conditioning system that defrosts | |
| CN201476397U (en) | Temperature-adjusting dehumidifier of water source heat pump | |
| CN105758045A (en) | Ultralow-temperature overlapped triple generation heat pump unit | |
| CN202562130U (en) | Air conditioner dehumidification evaporative condensation three-working-condition cold-and-hot water unit | |
| CN217900220U (en) | Evaporation condensation heat pump unit with hydraulic module | |
| CN112146301A (en) | Evaporative cold screw cold and hot water unit with total heat recovery | |
| CN203595316U (en) | Screw rod type total heat recovery air-cooled heat pump air conditioning unit | |
| CN201059703Y (en) | Refrigeration system of air conditioner hot-water multipurpose apparatus | |
| CN1945147B (en) | Heat pump cold and warm, hot water machine unit of air source | |
| CN202928184U (en) | A screw water chilling unit with a gravity self-circulation oil cooler | |
| CN115289714A (en) | Evaporation condensation heat pump unit with hydraulic module and control method thereof | |
| CN103307677B (en) | A kind of air-conditioning dehumidification unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20131127 |