CN104236088A - Ultra-low temperature air source heat pump hot water unit - Google Patents
Ultra-low temperature air source heat pump hot water unit Download PDFInfo
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- CN104236088A CN104236088A CN201410467146.7A CN201410467146A CN104236088A CN 104236088 A CN104236088 A CN 104236088A CN 201410467146 A CN201410467146 A CN 201410467146A CN 104236088 A CN104236088 A CN 104236088A
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- heat pump
- superheater
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- source heat
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Abstract
The invention belongs to the technical field of refrigerating and heating equipment, in particular to an ultra-low temperature air source heat pump hot water unit. The ultra-low temperature air source heat pump hot water unit comprises a compressor, a hot water heater, a supercooling pipe, a superheater, a main circuit throttle device, an air side heat exchanger and a gas-liquid separator, wherein the compressor, the hot water heater, the supercooling pipe, the superheater, the main circuit throttle device, the air side heat exchanger and the gas-liquid separator are communicated in sequence to form a heating return circuit; the compressor, the hot water heater, the supercooling pipe and the superheater are communicated in sequence to form an air supply return circuit; the heating return circuit and the air supply return circuit are connected in parallel. In a low temperature environment, the heating loop and the air supply loop work cooperatively, so that the situations that the exhaust gas temperature is high, the heating capacity is poor and the energy efficiency is reduced do not occur.
Description
Technical field
The invention belongs to heating-cooling equipment technical field, particularly
oneplant ultralow temperature air source heat pump hot-water group.
Technical background
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 plays more and more important effect.Air source heat pump is driving force with electric energy, using ambient outdoor air as thermal source, provides heat to being conditioned object.This environmental protection, efficiently energy resource supply mode have obvious competitive advantage in low-phase energy utilizes.
Mostly existing air friction drag is to be made up of compressor, air side heat exchanger, blower fan, water-side heat, restricting element, cold-producing medium R22, intelligence control system and corresponding water system.Its operation principle is that cold-producing medium R22 evaporates the heat absorbed in air in air side heat exchanger, and condensation heat release in water-side heat after compressor compression, the thermal release absorbed in water system, provides domestic hot-water to user.This water heating mode COP value is high, and energy-conserving and environment-protective, overall economic efficiency is good.Though existing air friction drag also exists above advantage, also there is following deficiency: at low ambient temperatures, air friction drag is few because of inspiratory capacity, has occurred that delivery temperature is high, the phenomenon such as heating capacity and efficiency reduction.
Summary of the invention
The object of the invention is to: for the deficiencies in the prior art, and provide
onekind of ultralow temperature air source heat pump hot-water group, at low ambient temperatures, there will not be that delivery temperature is high, the phenomenon such as heating capacity and efficiency reduction.
For achieving the above object, technical scheme of the present invention is:
oneplant ultralow temperature air source heat pump hot-water group, comprise compressor, hot-water heater, supercooling tube, superheater, main road throttling arrangement, air side heat exchanger and gas-liquid separator, described compressor, described hot-water heater, described supercooling tube, described superheater, described main road throttling arrangement, described air side heat exchanger are communicated with formation one heating loop successively with described gas-liquid separator, described compressor, described hot-water heater, described supercooling tube and described superheater are communicated with formation one tonifying Qi loop successively, described heating loop and the parallel connection of described tonifying Qi loop.
One as ultralow temperature air source heat pump hot-water group of the present invention is improved, and also comprise bypass defrost valve, described bypass defrost valve is in parallel with described heating loop.When needs defrost, described bypass defrost valve is opened, and starts frost prevention loop and realizes anti-frosting function.
One as ultralow temperature air source heat pump hot-water group of the present invention is improved, and also comprises time road throttling arrangement, and described road throttling arrangement and described superheater form primary Ioops, and this loop is in parallel with described heating loop.Main road throttling arrangement can be coordinated to work together, and the operation realizing main road and time road is non-interference, makes the safe and reliable operation of refrigerant flow path system energy.
One as ultralow temperature air source heat pump hot-water group of the present invention is improved, and described time road throttling arrangement comprises time road stop valve and time choke valve, and described time road stop valve is communicated with described superheater successively with described choke valve.By superheater, the heat in cold and the liquid refrigerants after being condensed is exchanged, become cryogenic gaseous refrigerant, then sucked by compressor.
One as ultralow temperature air source heat pump hot-water group of the present invention is improved, and be provided with blower fan in described air side heat exchanger, this blower fan is speed-changing draught fan, summer low cruise, winter, high-speed cruising, improve the heat exchange property of air side heat exchanger.
One as ultralow temperature air source heat pump hot-water group of the present invention is improved, and also comprises knockout, is provided with Double-throttling liquid-suction type liquid-separating device in described knockout.The two-step throttle liquid distributing device that the outlet that described Double-throttling liquid-suction type liquid-separating device comprises a nuclear one-stage throttling device and a nuclear one-stage throttling device connects, liquid refrigerants after cooling becomes the liquid refrigerants of low pressure compared with low temperature after a nuclear one-stage throttling device reducing pressure by regulating flow, enter in liquid storage cylinder by feed tube, utilize the liquid storage function of liquid storage cylinder, make the gaseous state after a nuclear one-stage throttling device reducing pressure by regulating flow and liquid refrigerants layering, because feed tube outlet is higher than separatory capillary inlet, makes to enter and be the pure liquid refrigerants of low pressure compared with low temperature in separatory capillary; And utilize the siphon of separatory capillary, Throttle Principle, refrigerant on evaporimeter is evenly distributed, good refrigeration effect.
Beneficial effect of the present invention is: the present invention includes compressor, hot-water heater, supercooling tube, superheater, main road throttling arrangement, air side heat exchanger and gas-liquid separator, compressor, hot-water heater, supercooling tube, superheater, main road throttling arrangement, air side heat exchanger and gas-liquid separator are communicated with formation one heating loop successively, compressor, hot-water heater, supercooling tube and superheater are communicated with formation one tonifying Qi loop successively, heating loop and the parallel connection of tonifying Qi loop.At low ambient temperatures, by above-mentioned heating loop and tonifying Qi loop cooperating, the present invention be there will not be, and delivery temperature is high, the phenomenon such as heating capacity and efficiency reduction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with detailed description of the invention and Figure of description, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1,
oneplant ultralow temperature air source heat pump hot-water group, comprise compressor 1, hot-water heater 2, supercooling tube 3, superheater 4, main road throttling arrangement 5, air side heat exchanger 6 and gas-liquid separator 7, compressor 1, hot-water heater 2, supercooling tube 3, superheater 4, main road throttling arrangement 5, air side heat exchanger 6 and gas-liquid separator 7 are communicated with formation one heating loop successively, wherein, superheater 4 has constantly can play heat exchange, super cooling effect, and there is heat accumulation, liquid storage effect, coolant system is without the need to separately adding device for storing liquid.Compressor 1, hot-water heater 2, supercooling tube 3 and superheater 4 are communicated with formation one tonifying Qi loop successively, heating loop and the parallel connection of tonifying Qi loop.At low ambient temperatures, by above-mentioned heating loop and tonifying Qi loop cooperating, the present invention be there will not be, and delivery temperature is high, the phenomenon such as heating capacity and efficiency reduction.
The air friction drag of present embodiment also comprises bypass defrost valve 9 and time road throttling arrangement 12, and bypass defrost valve 9 is in parallel with heating loop; Secondary road throttling arrangement 12 and superheater 4 form primary Ioops, and this loop is in parallel with heating loop.The setting of bypass defrost valve 9 and supercooling tube 3 achieves the effect of intelligent defrosting and frost prevention.Do not open when avoiding cross valve low temperature to defrost, move back do not return, degradation phenomenon under hot water temperature.
Preferably, secondary road throttling arrangement 12 comprises time road stop valve 10 and time choke valve 11, and secondary road stop valve 10 is communicated with superheater 4 successively with time choke valve 11.Make the operation of this road and main road (loop residing for main road throttling arrangement 5) non-interference, by the mode of heating of these two environment sections, make unit of the present invention keep high energy efficiency when high temperature, during low temperature, also can keep high energy efficiency.Be low-temperature air-compensation air is increased the compressor 1 that enthalpy technology is applied to present embodiment again, complete the function of air injection enthalpy-increasing, and carry out second time circulation.
Preferably, be provided with blower fan 8 in air side heat exchanger 6, blower fan 8 is speed-changing draught fan.Present embodiment also comprises knockout 13, and knockout 13 is arranged on the entrance of air side heat exchanger 6, is provided with Double-throttling liquid-suction type liquid-separating device (not shown) in described knockout 13.
During work, 1) normal temperature state water heating: when equipment needs water heating, the high pressure gaseous refrigerant of the generation that operated by compressor 1, by hot-water heater 2 distribute heat, is only absorbed by the water, makes domestic hot-water; And the liquid refrigerants after being condensed enters the main road choke valve of main road throttling arrangement 5 through supercooling tube 3 and superheater 4, form low-temp low-pressure liquid refrigerants; Cold is distributed to air by air side heat exchanger 6 and becomes cryogenic gaseous refrigerant by liquid refrigerants, is sucked by compressor 1 through gas-liquid separator 7, starts again second time circulation.2) low temperature (less than 5 DEG C) state water heating: when environment temperature is lower than less than 5 DEG C, the high pressure gaseous refrigerant that compressor 1 running produces, by hot-water heater 2 distribute heat, is only absorbed by the water, makes domestic hot-water; And the liquid refrigerants after being condensed is through supercooling tube 3 and superheater 4, stream is divided into two-way, and main road, through main road choke valve, forms low-temp low-pressure liquid refrigerants; Cold is distributed to air by air side heat exchanger 6 and becomes cryogenic gaseous refrigerant by liquid refrigerants, is sucked by compressor 1 through gas-liquid separator 7; Ci Lujingci road stop valve 10 and time choke valve 11, become time road low temperature liquid refrigerant, exchanged by the heat in cold and the liquid refrigerants after being condensed, become cryogenic gaseous refrigerant, directly sucked by compressor 1 by superheater 4; The gaseous coolant evaporated by this two-way makes compressor 1 soakage increase greatly, and starts second time circulation.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also change above-mentioned embodiment and revise.Therefore, the present invention is not limited to above-mentioned detailed description of the invention, and any apparent improvement of every those skilled in the art done by basis of the present invention, replacement or modification all belong to protection scope of the present invention.In addition, although employ some specific terms in this description, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (6)
1.
oneplant ultralow temperature air source heat pump hot-water group, it is characterized in that: comprise compressor, hot-water heater, supercooling tube, superheater, main road throttling arrangement, air side heat exchanger and gas-liquid separator, described compressor, described hot-water heater, described supercooling tube, described superheater, described main road throttling arrangement, described air side heat exchanger are communicated with formation one heating loop successively with described gas-liquid separator, described compressor, described hot-water heater, described supercooling tube and described superheater are communicated with formation one tonifying Qi loop successively, described heating loop and the parallel connection of described tonifying Qi loop.
2. ultralow temperature air source heat pump hot-water group according to claim 1, is characterized in that: also comprise bypass defrost valve, described bypass defrost valve is in parallel with described heating loop.
3. ultralow temperature air source heat pump hot-water group according to claim 2, is characterized in that: also comprise time road throttling arrangement, and described road throttling arrangement and described superheater form primary Ioops, and this loop is in parallel with described heating loop.
4. ultralow temperature air source heat pump hot-water group according to claim 3, is characterized in that: described time road throttling arrangement comprises time road stop valve and time choke valve, and described time road stop valve is communicated with described superheater successively with described choke valve.
5. ultralow temperature air source heat pump hot-water group according to claim 1, is characterized in that: be provided with blower fan in described air side heat exchanger.
6. ultralow temperature air source heat pump hot-water group according to claim 1, is characterized in that: also comprise knockout, is provided with Double-throttling liquid-suction type liquid-separating device in described knockout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467146.7A CN104236088A (en) | 2014-09-15 | 2014-09-15 | Ultra-low temperature air source heat pump hot water unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467146.7A CN104236088A (en) | 2014-09-15 | 2014-09-15 | Ultra-low temperature air source heat pump hot water unit |
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| CN104236088A true CN104236088A (en) | 2014-12-24 |
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| CN201410467146.7A Pending CN104236088A (en) | 2014-09-15 | 2014-09-15 | Ultra-low temperature air source heat pump hot water unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759167A (en) * | 2018-04-22 | 2018-11-06 | 北京工业大学 | The reinforcing for bypassing tonifying Qi joint compressor housing accumulation of heat heats heat pump system |
Citations (7)
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| CN1464963A (en) * | 2001-07-02 | 2003-12-31 | 三洋电机株式会社 | Heat pump |
| CN101957060A (en) * | 2010-11-01 | 2011-01-26 | 江苏天舒电器有限公司 | Ultralow temperature air source heat pump hot-water machine |
| CN101957061A (en) * | 2010-11-03 | 2011-01-26 | 湖南利能科技股份有限公司 | Quasi-two-stage compression ultralow temperature air source heat pump water heater with economizer |
| CN201779930U (en) * | 2010-08-06 | 2011-03-30 | 东莞市瑞星空调设备有限公司 | Double-throttling liquid-suction type liquid-separating device for heat pump |
| JP2011141069A (en) * | 2010-01-06 | 2011-07-21 | Corona Corp | Bath device |
| CN203454394U (en) * | 2013-08-08 | 2014-02-26 | 佛山聚阳新能源有限公司 | Frostless low-temperature air energy heat pump water heater |
| CN204084853U (en) * | 2014-09-15 | 2015-01-07 | 广东瑞星新能源科技有限公司 | A kind of ultralow temperature air source heat pump hot-water group |
-
2014
- 2014-09-15 CN CN201410467146.7A patent/CN104236088A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464963A (en) * | 2001-07-02 | 2003-12-31 | 三洋电机株式会社 | Heat pump |
| JP2011141069A (en) * | 2010-01-06 | 2011-07-21 | Corona Corp | Bath device |
| CN201779930U (en) * | 2010-08-06 | 2011-03-30 | 东莞市瑞星空调设备有限公司 | Double-throttling liquid-suction type liquid-separating device for heat pump |
| CN101957060A (en) * | 2010-11-01 | 2011-01-26 | 江苏天舒电器有限公司 | Ultralow temperature air source heat pump hot-water machine |
| CN101957061A (en) * | 2010-11-03 | 2011-01-26 | 湖南利能科技股份有限公司 | Quasi-two-stage compression ultralow temperature air source heat pump water heater with economizer |
| CN203454394U (en) * | 2013-08-08 | 2014-02-26 | 佛山聚阳新能源有限公司 | Frostless low-temperature air energy heat pump water heater |
| CN204084853U (en) * | 2014-09-15 | 2015-01-07 | 广东瑞星新能源科技有限公司 | A kind of ultralow temperature air source heat pump hot-water group |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759167A (en) * | 2018-04-22 | 2018-11-06 | 北京工业大学 | The reinforcing for bypassing tonifying Qi joint compressor housing accumulation of heat heats heat pump system |
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Application publication date: 20141224 |
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