CN103438626B - A kind of high temperature heat pump reservoir and adopt the high temperature thermal pump water heater of this reservoir - Google Patents

A kind of high temperature heat pump reservoir and adopt the high temperature thermal pump water heater of this reservoir Download PDF

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Publication number
CN103438626B
CN103438626B CN201310368499.7A CN201310368499A CN103438626B CN 103438626 B CN103438626 B CN 103438626B CN 201310368499 A CN201310368499 A CN 201310368499A CN 103438626 B CN103438626 B CN 103438626B
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high temperature
feed tube
pipe
reservoir
blind pipe
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CN103438626A (en
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吴友朋
吴沐林
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Guangdong Fivestar Solar Energy Co Ltd
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Guangdong Fivestar Solar Energy Co Ltd
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Abstract

The invention discloses a kind of high temperature heat pump reservoir and adopt the high temperature thermal pump water heater of this reservoir, described high temperature heat pump reservoir comprises body, the liquid storage cylinder surrounded by body, insert in liquid storage cylinder for flowing into the feed tube of cold-producing medium, and for flowing out the drain pipe of cold-producing medium in insertion liquid storage cylinder, also comprise and being arranged in liquid storage cylinder and the blind pipe be positioned at below described feed tube, this blind pipe is bottom sealing and top is provided with the body of opening, and the area of described opening is greater than the cross-sectional area of feed tube.Present invention achieves the cold-producing medium that the gas-liquid that enters in reservoir through feed tube coexists and can carry out gas-liquid separation in reservoir inside, solve the problem that gaseous refrigerant flows out from drain pipe.With heat pump with the use of the electric power energy consumption that effectively can reduce heat pump, reduce use cost.There is structure simple, reasonable in design, the advantage such as practical.

Description

A kind of high temperature heat pump reservoir and adopt the high temperature thermal pump water heater of this reservoir
Technical field
The present invention relates to a kind of reservoir technical field, more particularly, relate to a kind of for high temperature heat pump system with the use of, effectively can improve the high temperature heat pump reservoir of the stability that heat pump runs; Also relate to a kind of high temperature thermal pump water heater adopting described high temperature heat pump reservoir.
Background technology
Reservoir is an auxiliary element of heat pump, it usually and compressor link together, for storage of liquids cold-producing medium.In high temperature heat pump system, the inlet of the feed tube of reservoir is connected with condensator outlet, and the liquid outlet of drain pipe is connected with expansion valve.
In high temperature heat pump system, because condensation end temperature is high, condensation effect is poor, and cold-producing medium flows out from condensator outlet, when feed tube enters in reservoir, often with the gaseous refrigerant of part.Show the sectional structure schematic diagram of traditional heat pump liquid accumulator with reference to Fig. 1, Fig. 1, adopt traditional heat pump liquid accumulator, because it does not have gas-liquid separating function, easily cause the gaseous refrigerant in reservoir directly to follow liquid refrigerant and flow out from drain pipe; The cold-producing medium that gas-liquid coexists enters expansion valve after reservoir flows out.The restriction effect of expansion valve will be had a strong impact on, cause that the running stability of high temperature heat pump system is low, energy-saving effect declines greatly, thus result in the energy that increases electric power consumption, increase operating cost.
Summary of the invention
The object of the invention is to overcome above-mentioned defect of the prior art, a kind of high temperature heat pump reservoir simultaneously possessing liquid storage function and gas-liquid separating function is provided.
Another object of the present invention is to overcome above-mentioned defect of the prior art, provide a kind of and adopt the described high temperature thermal pump water heater simultaneously possessing the high temperature heat pump reservoir of liquid storage function and gas-liquid separating function.
For achieving the above object, technical scheme provided by the invention is as follows:
A kind of high temperature heat pump reservoir is provided, comprise body, the liquid storage cylinder surrounded by described body, insert in liquid storage cylinder for flowing into the feed tube of cold-producing medium, and for flowing out the drain pipe of cold-producing medium in insertion liquid storage cylinder, also comprise and being arranged in liquid storage cylinder and the blind pipe be positioned at below described feed tube, this blind pipe is bottom sealing and top is provided with the body of opening, and the area of described opening is greater than the cross-sectional area of feed tube.
As the preferred scheme of one, the feed liquor mouth of pipe of described feed tube lower end inserts in described blind pipe completely.
As the preferred scheme of one, the lateral wall of described feed tube bottom is fixedly connected with the madial wall of described blind pipe, makes described blind pipe be suspended on feed tube bottom.
As the preferred scheme of one, the area of the opening on described blind pipe top is 2.5 ~ 3.5 times of feed tube cross-sectional area.
As the preferred scheme of one, along in short transverse, the fluid mouth of pipe of described drain pipe lower end is lower than the opening on described blind pipe top.
A kind of high temperature thermal pump water heater is provided, comprise the compressor, water fluorine heat exchanger, reservoir, expansion valve, evaporimeter and the separator that connect successively, described reservoir comprises body, the liquid storage cylinder surrounded by described body, insert in liquid storage cylinder for flowing into the feed tube of cold-producing medium, insert in liquid storage cylinder for flowing out the drain pipe of cold-producing medium, and to be arranged in liquid storage cylinder and the blind pipe be positioned at below feed tube, described blind pipe is bottom sealing and top is provided with the body of opening, and the area of described opening is greater than the cross-sectional area of feed tube.
As the preferred scheme of one, the feed liquor mouth of pipe of described feed tube lower end inserts in described blind pipe completely.
As the preferred scheme of one, the lateral wall of described feed tube bottom is fixedly connected with the madial wall of described blind pipe, makes described blind pipe be suspended on feed tube bottom.
As the preferred scheme of one, the area of the opening on described blind pipe top is 2.5 ~ 3.5 times of feed tube cross-sectional area.
As the preferred scheme of one, along in short transverse, the fluid mouth of pipe of described drain pipe lower end is lower than the opening on described blind pipe top.
Compared with prior art, beneficial effect of the present invention is:
By being positioned at below feed tube and arranging a blind pipe in liquid storage cylinder, when cold-producing medium flows to reservoir from feed tube, first can flow in blind pipe; Because gaseous refrigerant is different from the density of liquid refrigerant, when the cold-producing medium that gas-liquid coexists flows in blind pipe, liquid refrigerant is stayed in blind pipe, gaseous refrigerant then can flow to liquid storage cylinder top-direction, when the liquid refrigerant in blind pipe is full of and overflows, owing to being subject to the effect of gravity, liquid refrigerant flows to liquid storage cylinder bottom direction, the liquid refrigerant flowed downward converges in bottom liquid storage cylinder, and is flowed out by drain pipe.Therefore the cold-producing medium that gas-liquid is mixed can carry out gas-liquid separation in liquid storage cylinder, solves the problem that gaseous refrigerant flows out from drain pipe, ensures the stability of expansion valve restriction effect.This high temperature heat pump reservoir can be widely used in heat pump, is such as applied on high temperature thermal pump water heater, or it is first-class to be applied to high temperature heat pump dryer.With heat pump with the use of the next harm of high temperature heat pump condensation effect difference band effectively can be overcome, reduce the electric power energy consumption of heat pump, reduce use cost.Also there is structure simultaneously simple, reasonable in design, the advantage such as practical.
In addition, high temperature thermal pump water heater of the present invention has the feature of quick heating.Especially make use of the special construction of above-mentioned high temperature heat pump reservoir, make hot water machine hot operation more steady, efficiency is higher, heat up faster, effectively reduce the consumption of electric power energy, reduce use cost, greatly meet the demand of high-temperature-hot-water market to low operating cost hot water machine product.
Below in conjunction with drawings and Examples to high temperature heat pump reservoir of the present invention and adopt the high temperature thermal pump water heater of this reservoir to be described further.
Accompanying drawing explanation
Fig. 1 is traditional reservoir sectional structure schematic diagram;
Fig. 2 is one of sectional structure schematic diagram of a kind of high temperature heat pump reservoir of the present invention;
Fig. 3 is the sectional structure schematic diagram two of a kind of high temperature heat pump reservoir of the present invention;
Fig. 4 is the package assembly schematic diagram of high temperature thermal pump water heater of the present invention.
In accompanying drawing:
10 reservoirs, 101. bodies, 102. liquid storage cylinders, 103. feed tubes, the 1031. feed liquor mouths of pipe, 104. drain pipes, the 1041. fluid mouths of pipe, 105. blind pipes, 1051. openings, 106. bases, 201. compressors, 202. water fluorine heat exchangers, 203. expansion valves, 204. evaporimeters, 205. separators.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
Embodiment 1
Embodiments of the invention 1 provide a kind of high temperature heat pump reservoir, be intended to realization makes reservoir possess liquid storage function and gas-liquid separating function simultaneously, expansion valve is flowed out into from drain pipe to solve the gaseous refrigerant flowed in reservoir, have a strong impact on the restriction effect of expansion valve, thus affect the stability of high temperature heat pump system operation, and then the problem causing the energy-saving effect of high temperature heat pump system greatly to decline.Below in conjunction with accompanying drawing, the present embodiment is described in detail.
Fig. 2 and Fig. 3 system according to one embodiment of present invention, which respectively show the sectional structure schematic diagram of the present embodiment high temperature heat pump reservoir, please refer to Fig. 2 and Fig. 3.Described a kind of high temperature heat pump reservoir, comprise the base 106 for carrying reservoir, be arranged on the body 101 on base 106, the liquid storage cylinder 102 surrounded by described body 101, insert in liquid storage cylinder 102 for flowing into the feed tube 103 of cold-producing medium, and insert in liquid storage cylinder 102 for flowing out the drain pipe 104 of cold-producing medium, also comprise and being arranged in liquid storage cylinder 102 and the blind pipe 105 be positioned at below described feed tube 103, this blind pipe 105 is for bottom sealing and top is provided with the body of opening 1051, the area of described opening 1051 is greater than the cross-sectional area of feed tube 103, therefore first the cold-producing medium flowed into from feed tube 103 can flow in blind pipe 105.
As the preferred scheme of one, the feed liquor mouth of pipe 1031 of described feed tube 103 lower end inserts in described blind pipe 105 completely.In other words, along in short transverse, the opening 1051 on described blind pipe 105 top is higher than the feed liquor mouth of pipe 1031 of described feed tube 103 lower end, and no matter what therefore can ensure to flow out from the feed liquor mouth of pipe 1031 of feed tube 103 lower end is that first liquid refrigerant or gaseous refrigerant can all flow in blind pipe 105.
The principle that described high temperature heat pump reservoir realizes gas-liquid separation is: with reference to Fig. 2 and Fig. 3, when cold-producing medium is flowed in liquid storage cylinder 102 by feed tube 103, first can flow in the blind pipe 105 that is arranged on below feed tube 103.Because gaseous refrigerant is different from the density of liquid refrigerant, if the cold-producing medium that gas-liquid coexists flows in blind pipe 105, owing to being subject to the stop of blind pipe 105, liquid refrigerant can be stayed in blind pipe 105, gaseous refrigerant then can flow from the opening 1051 on blind pipe 105 top to liquid storage cylinder 102 top-direction, when the liquid refrigerant in blind pipe 105 is full of and overflows, owing to being subject to the effect of gravity, liquid refrigerant flows to liquid storage cylinder 102 bottom direction, the liquid refrigerant flowed downward converges in bottom liquid storage cylinder 102, and flowed out by drain pipe 104, thus achieve gas-liquid separation, solve the problem that gaseous refrigerant flows out from drain pipe 104 with liquid refrigerant.After the gaseous refrigerant condenses at described liquid storage cylinder 102 top, then from liquid storage cylinder 102 overhead stream to bottom.
As the preferred scheme of one, the area of the opening 1051 on described blind pipe 105 top is 2.5 ~ 3.5 times of feed tube 103 cross-sectional area.Effectively can ensure that cold-producing medium flows into after in blind pipe 105, gaseous refrigerant can flow to liquid storage cylinder 102 top from opening 1051, and liquid refrigerant can flow to bottom liquid storage cylinder 102, to realize gas-liquid separating function from opening 1051.In actual application, any numerical value that multiple value between the area of described opening 1051 and the cross-sectional area of feed tube 103 can be selected between 2.5 ~ 3.5 times according to actual conditions, the such as area of opening 1051 is 2.5 times, 3 times or 3.5 times of feed tube 103 cross-sectional area.
As the preferred scheme of one, the fixed form of described blind pipe 105 is: the lateral wall of side, described feed tube 103 bottom is fixedly connected with by welding manner with the madial wall of described blind pipe 105, blind pipe 105 is made fixedly to be suspended on feed tube 103 bottom, therefore feed tube 103 is close on the madial wall of blind pipe 105, when cold-producing medium flows out from feed tube 103, can flow in blind pipe 105 along with the madial wall of blind pipe 105.Certainly, described feed tube 103 can also be other modes with the mode that is fixedly connected with of blind pipe 105, is fixedly connected with as by fixture.The fixed form of described blind pipe 105 also can also be other modes, to be such as fixed on by blind pipe 105 bottom liquid storage cylinder 102 etc.
Described drain pipe 104 can be the inner connecting tube inserted from body 101 top in liquid storage cylinder 102, can certainly be the inner connecting tube inserted from body 101 sidepiece in liquid storage cylinder 102; As the preferred scheme of one, along in short transverse, the fluid mouth of pipe 1041 of described drain pipe 104 lower end is lower than the opening 1051 on described blind pipe 105 top.Owing to being subject to the stop of blind pipe 105, the gaseous refrigerant entered in blind pipe 105 can flow from the opening 1051 on blind pipe 105 top to liquid storage cylinder 102 top-direction, and the position of the fluid mouth of pipe 1041 of drain pipe 104 lower end is arranged on the position lower than opening 1051, effectively can ensure that gaseous refrigerant can not flow out from drain pipe 104.
This high temperature heat pump reservoir can be widely used in heat pump, is such as applied on high temperature thermal pump water heater, or it is first-class to be applied to high temperature heat pump dryer.With heat pump with the use of the stability effectively can improved heat pump and run, overcome the harm that high temperature heat pump condensation effect difference band comes, reduce the electric power energy consumption of heat pump, reduce use cost.Also there is structure simultaneously simple, reasonable in design, the advantage such as practical.
Embodiment 2
Embodiments of the invention 2 provide a kind of high temperature thermal pump water heater adopting above-mentioned high temperature heat pump reservoir.Reference Fig. 4, Fig. 4 are the package assembly schematic diagrames that the embodiment of the present invention 2 provides.
High temperature thermal pump water heater described in the present embodiment, comprise the compressor 201 connected successively, water fluorine heat exchanger 202, reservoir 10, expansion valve 203, evaporimeter 204 and separator 205, described water fluorine heat exchanger 202 is connected with the water inlet pipe for flowing into cold water and the outlet pipe for flowing out hot water, described reservoir 10 is above-mentioned high temperature heat pump reservoirs, it comprises the base 106 for carrying reservoir, be arranged on the body 101 on base 106, the liquid storage cylinder 102 surrounded by described body 101, insert in liquid storage cylinder 102 for flowing into the feed tube 103 of cold-producing medium, and insert in liquid storage cylinder 102 for flowing out the drain pipe 104 of cold-producing medium, also comprise and being arranged in liquid storage cylinder 102 and the blind pipe 105 be positioned at below feed tube 103, this blind pipe 105 is for bottom sealing and top is provided with the body of opening 1051, the area of described opening 1051 is greater than the cross-sectional area of feed tube 103, therefore first the cold-producing medium flowed out from feed tube 103 can flow in blind pipe 105.
As the preferred scheme of one, the feed liquor mouth of pipe 1031 of described feed tube 103 lower end inserts in described blind pipe 105 completely, thus no matter what ensure to flow out from the feed liquor mouth of pipe 1031 of feed tube 103 lower end is that first liquid refrigerant or gaseous refrigerant can all flow in blind pipe 105.
The principle that described high temperature heat pump reservoir realizes gas-liquid separation is: when cold-producing medium is flowed in liquid storage cylinder 102 by feed tube 103, first can flow in the blind pipe 105 that is arranged on below feed tube 103.Because gaseous refrigerant is different from the density of liquid refrigerant, if the cold-producing medium that gas-liquid coexists flows in blind pipe 105, owing to being subject to the stop of blind pipe 105, liquid refrigerant is stayed in blind pipe 105, gaseous refrigerant then can flow from the opening 1051 on blind pipe 105 top to liquid storage cylinder 102 top-direction, when the liquid refrigerant in blind pipe 105 is full of and overflows, owing to being subject to the effect of gravity, liquid refrigerant flows to liquid storage cylinder 102 bottom direction, the liquid refrigerant flowed downward converges in bottom liquid storage cylinder 102, and flowed out by drain pipe 104, thus achieve gas-liquid separation, solve the problem that gaseous refrigerant flows out from drain pipe 104 with liquid refrigerant.After the gaseous refrigerant condenses at described liquid storage cylinder 102 top, then from liquid storage cylinder 102 overhead stream to bottom.
As the preferred scheme of one, the area of the opening 1051 on described blind pipe 105 top is 2.5 ~ 3.5 times of feed tube 103 cross-sectional area.Effectively can ensure that cold-producing medium flows into after in blind pipe 105, gaseous refrigerant can flow to liquid storage cylinder 102 top from opening 1051, and liquid refrigerant can flow to bottom liquid storage cylinder 102, to realize gas-liquid separating function from opening 1051.In actual application, any numerical value that multiple value between the area of described opening 1051 and the cross-sectional area of feed tube 103 can be selected between 2.5 ~ 3.5 times according to actual conditions, the such as area of opening 1051 is 2.7 times, 3.2 times or 3.4 times of feed tube 103 cross-sectional area.
As the preferred scheme of one, along in short transverse, the fluid mouth of pipe 1041 of described drain pipe 104 lower end is lower than the opening 1051 on described blind pipe 105 top.Because gaseous refrigerant flows to liquid storage cylinder 102 top from the opening 1051 on blind pipe 105 top, and the fluid mouth of pipe 1041 position of drain pipe 104 lower end is arranged on the position lower than opening 1051, effectively can ensures that gaseous refrigerant can not flow out from drain pipe.
During high temperature thermal pump water heater work of the present invention, the exhaust of compressor 201 enters in water fluorine heat exchanger 202 carries out heat exchange, the liquid refrigerant that condensation is got off enters in reservoir 10 from feed tube 103, liquid refrigerant in reservoir 10 flows out from drain pipe 104, and flow in expansion valve 203, after expansion valve 203 throttling, enter in evaporimeter 204 and carry out heat exchange evaporation with air, the gas produced flows back in compressor 201 through separator 205 and continues compression, so moves in circles.This high temperature thermal pump water heater has the fast feature of temperature rise.Especially make use of the special construction of above-mentioned high temperature heat pump reservoir, make hot water machine hot operation more steady, efficiency is higher, temperature rise is faster, effectively reduce the consumption of electric power energy, reduce use cost, greatly meet the demand of high-temperature-hot-water market to low operating cost hot water machine product.Also there is structure simple simultaneously, be easy to make, use, practical advantage.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (9)

1. a high temperature heat pump reservoir, comprise body (101), the liquid storage cylinder (102) surrounded by described body (101), insert in liquid storage cylinder (102) for flowing into the feed tube (103) of cold-producing medium, and insert in liquid storage cylinder (102) for flowing out the drain pipe (104) of cold-producing medium, it is characterized in that, also comprise and being arranged in liquid storage cylinder (102) and the blind pipe (105) be positioned at below described feed tube (103), this blind pipe (105) is for bottom sealing and top is provided with the body of opening (1051), the area of described opening (1051) is greater than the cross-sectional area of feed tube (103), the feed liquor mouth of pipe (1031) of described feed tube (103) lower end inserts in described blind pipe (105) completely.
2. a kind of high temperature heat pump reservoir according to claim 1, it is characterized in that, the lateral wall of described feed tube (103) bottom is fixedly connected with the madial wall of described blind pipe (105), makes described blind pipe (105) be suspended on feed tube (103) bottom.
3. a kind of high temperature heat pump reservoir according to any one of claim 1 to 2, is characterized in that, the area of the opening (1051) on described blind pipe (105) top is 2.5 ~ 3.5 times of feed tube (103) cross-sectional area.
4. a kind of high temperature heat pump reservoir according to claim 3, it is characterized in that, along in short transverse, the fluid mouth of pipe (1041) of described drain pipe (104) lower end is lower than the opening (1051) on described blind pipe (105) top.
5. one kind adopts the high temperature thermal pump water heater of the high temperature heat pump reservoir described in any one of Claims 1-4, comprise the compressor (201) connected successively, water fluorine heat exchanger (202), reservoir (10), expansion valve (203), evaporimeter (204) and separator (205), it is characterized in that, described reservoir (10) comprises body (101), the liquid storage cylinder (102) surrounded by described body (101), insert in liquid storage cylinder (102) for flowing into the feed tube (103) of cold-producing medium, insert in liquid storage cylinder (102) for flowing out the drain pipe (104) of cold-producing medium, and to be arranged in liquid storage cylinder (102) and to be positioned at the blind pipe (105) of described feed tube (103) below, described blind pipe (105) is for bottom sealing and top is provided with the body of opening (1051), the area of described opening (1051) is greater than the cross-sectional area of feed tube (103).
6. high temperature thermal pump water heater according to claim 5, is characterized in that, the feed liquor mouth of pipe (1031) of described feed tube (103) lower end inserts in described blind pipe (105) completely.
7. high temperature thermal pump water heater according to claim 6, it is characterized in that, the lateral wall of described feed tube (103) bottom is fixedly connected with the madial wall of described blind pipe (105), makes described blind pipe (105) be suspended on feed tube (103) bottom.
8. the high temperature thermal pump water heater according to any one of claim 6 to 7, is characterized in that, the area of described blind pipe (105) top end opening (1051) is 2.5 ~ 3.5 times of feed tube (103) cross-sectional area.
9. high temperature thermal pump water heater according to claim 8, it is characterized in that, along in short transverse, the fluid mouth of pipe (1041) of described drain pipe (104) lower end is lower than the opening (1051) on described blind pipe (105) top.
CN201310368499.7A 2013-08-21 2013-08-21 A kind of high temperature heat pump reservoir and adopt the high temperature thermal pump water heater of this reservoir Active CN103438626B (en)

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CN112320121B (en) * 2019-08-05 2022-04-19 张家港中集圣达因低温装备有限公司 Marine storage tank

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JPH0989420A (en) * 1995-09-27 1997-04-04 Fuji Koki:Kk Receiver tank with expansion valve
JP2010243108A (en) * 2009-04-08 2010-10-28 Sanden Corp Oil separator
CN201724482U (en) * 2010-05-12 2011-01-26 珠海格力电器股份有限公司 Refrigerant gas-liquid separation and liquid storage integrated device and air-conditioning system using refrigerant gas-liquid separation and liquid storage integrated device
CN202304145U (en) * 2011-01-28 2012-07-04 大连三洋压缩机有限公司 Liquid receiver and gas-liquid separator compact type structure for refrigeration/air-conditioning system
CN202521978U (en) * 2012-04-27 2012-11-07 珠海格力电器股份有限公司 Gas-liquid separator and air conditioning system with same
CN202973689U (en) * 2012-12-17 2013-06-05 刘兆祯 Gas-liquid separator of freon refrigerating system
CN203518365U (en) * 2013-08-21 2014-04-02 广东五星太阳能股份有限公司 High temperature heat pump liquid accumulator and high temperature heat pump water heater adopting same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0989420A (en) * 1995-09-27 1997-04-04 Fuji Koki:Kk Receiver tank with expansion valve
JP2010243108A (en) * 2009-04-08 2010-10-28 Sanden Corp Oil separator
CN201724482U (en) * 2010-05-12 2011-01-26 珠海格力电器股份有限公司 Refrigerant gas-liquid separation and liquid storage integrated device and air-conditioning system using refrigerant gas-liquid separation and liquid storage integrated device
CN202304145U (en) * 2011-01-28 2012-07-04 大连三洋压缩机有限公司 Liquid receiver and gas-liquid separator compact type structure for refrigeration/air-conditioning system
CN202521978U (en) * 2012-04-27 2012-11-07 珠海格力电器股份有限公司 Gas-liquid separator and air conditioning system with same
CN202973689U (en) * 2012-12-17 2013-06-05 刘兆祯 Gas-liquid separator of freon refrigerating system
CN203518365U (en) * 2013-08-21 2014-04-02 广东五星太阳能股份有限公司 High temperature heat pump liquid accumulator and high temperature heat pump water heater adopting same

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