CN203443167U - Low-temperature air-supplement enthalpy-increasing type air source heat pump water heater unit - Google Patents
Low-temperature air-supplement enthalpy-increasing type air source heat pump water heater unit Download PDFInfo
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- CN203443167U CN203443167U CN201320424174.1U CN201320424174U CN203443167U CN 203443167 U CN203443167 U CN 203443167U CN 201320424174 U CN201320424174 U CN 201320424174U CN 203443167 U CN203443167 U CN 203443167U
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Abstract
The utility model provides a low-temperature air-supplement enthalpy-increasing type air source heat pump water heater unit. The low-temperature air- supplement enthalpy-increasing type air source heat pump water heater unit comprises a second throttling device, a second one-way valve, a second solenoid valve, a compressor, a first heat exchanger, a first solenoid valve, a flash evaporation device, a first one-way valve, a first throttling device, a second heat exchanger and a gas-liquid separation device. The compressor, the first heat exchanger, the first solenoid valve, the flash evaporation device, the first one-way valve, the first throttling device, the second heat exchanger and the gas-liquid separation device are connected in order. The gas-liquid separation device is connected with a return air inlet of the compressor. The second throttling device is connected with the second one-way valve. An inlet of the second throttling device is connected with a pipeline between the first heat exchanger and the first solenoid valve. An outlet of the second one-way valve is connected with another pipeline between the first solenoid valve and the flash evaporation device. The second solenoid valve which is passed through by an air-supply branch port of the flash evaporation device is connected with an air supplement port of the compressor. When the ambient temperature is low, the second solenoid valve is opened, the first solenoid valve is closed and air is supplemented to the compressor from the air supplement port. When ambient temperature is normal, the operation is opposite to the above. Therefore, when ambient temperature is low, coefficient is enhanced to achieve an energy-saving effect.
Description
Technical field
The utility model relates to air-source heat pump hot water group field, relates in particular to tonifying Qi under a kind of low temperature and increases enthalpy to improve the air-source heat pump hot water group of heat pump efficiency.
Background technology
At present, air source heat pump (Air Source Heat Pump, ASHP) is the heating plant of environmental protection high efficiency and energy-saving, and thermal source is surrounding air, has the feature of non-pollutant discharge.At present, China's air source heat pump application is increasingly extensive, at building energy conservation, substitutes the engineerings such as coal heating and is bringing into play more and more important effect.Air source heat pump be take electric energy as driving force, using outdoor environment air as thermal source, to being conditioned object, provides heat.This environmental protection, efficiently energy resource supply mode has obvious competitive advantage at low-phase energy aspect utilizing.
Low-temperature air-compensation air increases enthalpy type air-source heat pump hot water group, has annual hot-water supply function, but is mainly used in Winter heat supply water.The heating capacity of compressor can reduce and decline with environment temperature, the principle being circulated from heat pump, in the situation that condensation temperature is constant, when outdoor environment temperature declines, along with the increase of inspiratory volume, pressure ratio increases, and than merit, increases, refrigerating effect per unit swept volume reduces, and unit heating capacity and heating efficiency all reduce.In fact, the variation of the practical factors such as coupling of refrigerant flow, compressor outlet state, compressor efficiency, unit assembly property and unit assembly all will cause unit performance to worsen rapidly.First show in the constant situation of indoor temperature, continuous reduction along with outdoor environment temperature, evaporating pressure constantly reduces, according to the character of cold-producing medium, specific volume increases along with the reduction of pressure, therefore concerning the constant compressor of aspirated volume, its quality that sucks cold-producing medium will reduce, and directly cause the total heating capacity of unit to reduce.This will reduce the operating efficiency of compressor greatly.
Therefore be necessary the circuit design of unit to improve, guarantee that unit has good duty.In addition, the research of this area also thinks, the ability that improves the heat supply under heat pump low temperature also needs there is perfect Defrost technology, to guarantee the heat-transfer effect of heat pump under low temperature.
Utility model content
The purpose of this utility model is to provide a kind of low-temperature air-compensation air and increases enthalpy type air-source heat pump hot water group, solves one or more in above-mentioned prior art problem.
The utility model provides a kind of low-temperature air-compensation air to increase enthalpy type air-source heat pump hot water group, comprises the second throttling arrangement, the second check valve, the second magnetic valve and the compressor, First Heat Exchanger, the first magnetic valve, flash vessel, the first check valve, first throttle device, the second heat exchanger, the gas-liquid separator that connect in turn; Compressor has exhaust outlet, gas returning port and gas supplementing opening, and gas-liquid separator connects gas returning port, and exhaust outlet connects First Heat Exchanger; The outlet of the second throttling arrangement connects the import of the second check valve, the import of the second throttling arrangement is connected in the pipeline between First Heat Exchanger and the first magnetic valve, the outlet of the second check valve is connected in the pipeline between the first magnetic valve and flash vessel, flash vessel has tonifying Qi and props up mouth, and the gas supplementing opening that mouthful the second magnetic valve passing through connects compressor is propped up in tonifying Qi.
The utility model is also provided with tonifying Qi branch road in coolant system; when environment temperature is too low; can be by opening the second magnetic valve; close the first magnetic valve; gas supplementing opening is to compressor tonifying Qi, when Normal Environmental Temperature next contrary, thereby compared with under low ambient temperature; improve system's energy coefficient, reach energy-saving effect.
In some embodiments, the utility model also comprises four-way change-over valve, the 3rd check valve and the 3rd throttling arrangement, and four-way change-over valve is connected with First Heat Exchanger, the second heat exchanger, the import of gas-liquid separator and the exhaust outlet of compressor respectively; The import of the 3rd check valve is connected in the pipeline between the second heat exchanger and first throttle device, and the outlet of the 3rd check valve is connected in the pipeline between the first check valve and first throttle device; The import of the 3rd throttling arrangement is connected in the pipeline between first throttle device and the first check valve, and the outlet of the 3rd throttling arrangement is connected in the pipeline between the first check valve and flash vessel.
The utility model also provides a kind of Defrost mode, when system detects the second heat exchanger frosting, four-way change-over valve automatically switches, compressor is discharged to high temperature and high pressure gas first through the second heat exchanger, then through the 3rd check valve, the 3rd throttling arrangement, flash vessel, the first magnetic valve, First Heat Exchanger, the four-way change-over valve of flowing through, gas-liquid separator until return compressor.
In some embodiments, between flash vessel and the first check valve, be provided with the first filter, between the first check valve and first throttle device, be provided with the second filter, between first throttle device and the second heat exchanger, be provided with the 3rd filter.The utility model arranges a plurality of filters, can significantly improve stability of the present utility model.
Accompanying drawing explanation
The low-temperature air-compensation air of a kind of embodiment that Fig. 1 provides for the utility model increases the structural representation of enthalpy type air-source heat pump hot water group.
The specific embodiment
Below in conjunction with accompanying drawing, describe dependency structure of the present utility model in detail.
As shown in Figure 1, the utility model provides a kind of low-temperature air-compensation air to increase enthalpy type air-source heat pump hot water group, comprises compressor 1, four-way change-over valve 4, First Heat Exchanger 7, the second heat exchanger 17, the first magnetic valve 13, flash vessel 10, the first filter 14, the first check valve 15, the second filter 19, first throttle device 16, the 3rd filter 20.
Compressor 1 is tonifying Qi increasing enthalpy compressor, and it has exhaust outlet 2, gas returning port 3 and gas supplementing opening 12, and four-way change-over valve 4 is connected with First Heat Exchanger 7, the second heat exchanger 17, the import of gas-liquid separator 18 and the exhaust outlet 2 of compressor 1 respectively; The gas returning port 3 of compressor 1 is connected with the outlet of gas-liquid separator 18; On pipeline between First Heat Exchanger 7 to second heat exchangers 17, be connected with in turn the first magnetic valve 13, flash vessel 10, the first filter 14, the first check valve 15, the second filter 19, first throttle device 16 and the 3rd filter 20.
The utility model also comprises the second throttling arrangement 8, the second check valve 9, the outlet of the second throttling arrangement 8 connects the import of the second check valve 9, the import of the second throttling arrangement 8 is connected in the pipeline between First Heat Exchanger 7 and the first magnetic valve 13 by three-way pipe, and the outlet of the second check valve 9 is connected in the pipeline between the first magnetic valve 13 and flash vessel 10 by three-way pipe.
The utility model also comprises the second magnetic valve 11, and flash vessel 10 has that tonifying Qi props up mouthfuls 21, tonifying Qi is propped up mouthfuls 21 and connected the gas supplementing opening 12 of compressors 1 by the second magnetic valve 11.
The utility model is also provided with tonifying Qi branch road in coolant system; when environment temperature is too low; can be by opening the second magnetic valve 11; close the first magnetic valve 13; gas supplementing opening 12 is to compressor 1 tonifying Qi, when Normal Environmental Temperature next contrary, thereby compared with under low ambient temperature; improve system's energy coefficient, reach energy-saving effect.
As optimization: the import that the utility model also comprises the 3rd check valve 5, the 3rd throttling arrangement 6, the three check valves 5 by three-way pipe be connected in the pipeline between the 3rd filter 20 and first throttle device 16, the outlet of the 3rd check valve 5 is connected in the pipeline between first throttle device 16 and the second filter 19 by three-way pipe.
The utility model also provides a kind of Defrost mode, when system detects the second heat exchanger 17 frosting, four-way change-over valve 4 automatically switches, compressor 1 is discharged to high temperature and high pressure gas first through the second heat exchanger 17, then through the 3rd check valve 5, the 3rd throttling arrangement 6, flash vessel 10, the first magnetic valve 13, First Heat Exchanger 7, the four-way change-over valve 4 of flowing through, gas-liquid separator 18 until return compressor 1.In addition, the utlity model has a plurality of filters, can significantly improve stability of the present utility model.
The above is only optimal way of the present utility model; it should be pointed out that to those skilled in the art, do not departing under the prerequisite of the utility model creation design; can also make some similar distortion and improvement, within these also should be considered as protection domain of the present utility model.
Claims (3)
1. low-temperature air-compensation air increases enthalpy type air-source heat pump hot water group, it is characterized in that, comprise the second throttling arrangement (8), the second check valve (9), the second magnetic valve (11) and the compressor (1), First Heat Exchanger (7), the first magnetic valve (13), flash vessel (10), the first check valve (15), first throttle device (16), the second heat exchanger (17), the gas-liquid separator (18) that connect in turn; Described compressor (1) has exhaust outlet (2), gas returning port (3) and gas supplementing opening (12), and described gas-liquid separator (18) connects described gas returning port (3), and described exhaust outlet (2) connects described First Heat Exchanger (7); The outlet of described the second throttling arrangement (8) connects the import of described the second check valve (9), the import of described the second throttling arrangement (8) is connected in the pipeline between described First Heat Exchanger (7) and described the first magnetic valve (13), the outlet of described the second check valve (9) is connected in the pipeline between described the first magnetic valve (13) and described flash vessel (10), described flash vessel (10) has tonifying Qi and props up mouthful (21), and the gas supplementing opening (12) that described the second magnetic valve (11) mouthful (21) passing through connects compressor (1) is propped up in described tonifying Qi.
2. low-temperature air-compensation air according to claim 1 increases enthalpy type air-source heat pump hot water group, it is characterized in that, also comprise four-way change-over valve (4), the 3rd check valve (5) and the 3rd throttling arrangement (6), described four-way change-over valve (4) is connected with the import of First Heat Exchanger (7), the second heat exchanger (17), gas-liquid separator (18) and the exhaust outlet (2) of described compressor (1) respectively; The import of described the 3rd check valve (5) is connected in the pipeline between described the second heat exchanger (17) and described first throttle device (16), and the outlet of described the 3rd check valve (5) is connected in the pipeline between described the first check valve (15) and described first throttle device (16); The import of described the 3rd throttling arrangement (6) is connected in the pipeline between described first throttle device (16) and described the first check valve (15), and the outlet of described the 3rd throttling arrangement (6) is connected in the pipeline between described the first check valve (15) and described flash vessel (10).
3. low-temperature air-compensation air according to claim 1 increases enthalpy type air-source heat pump hot water group, it is characterized in that, between described flash vessel (10) and described the first check valve (15), be provided with the first filter (14), between described the first check valve (15) and described first throttle device (16), be provided with the second filter (19), between described first throttle device (16) and described the second heat exchanger (17), be provided with the 3rd filter (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424174.1U CN203443167U (en) | 2013-07-16 | 2013-07-16 | Low-temperature air-supplement enthalpy-increasing type air source heat pump water heater unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320424174.1U CN203443167U (en) | 2013-07-16 | 2013-07-16 | Low-temperature air-supplement enthalpy-increasing type air source heat pump water heater unit |
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| CN203443167U true CN203443167U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320424174.1U Expired - Lifetime CN203443167U (en) | 2013-07-16 | 2013-07-16 | Low-temperature air-supplement enthalpy-increasing type air source heat pump water heater unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442637A (en) * | 2018-11-19 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of Gas-supplying enthalpy-increasing system and its control method |
-
2013
- 2013-07-16 CN CN201320424174.1U patent/CN203443167U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442637A (en) * | 2018-11-19 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of Gas-supplying enthalpy-increasing system and its control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |