CN104676959A - Heat pump and coil pipe thereof - Google Patents
Heat pump and coil pipe thereof Download PDFInfo
- Publication number
- CN104676959A CN104676959A CN201510109689.6A CN201510109689A CN104676959A CN 104676959 A CN104676959 A CN 104676959A CN 201510109689 A CN201510109689 A CN 201510109689A CN 104676959 A CN104676959 A CN 104676959A
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- CN
- China
- Prior art keywords
- header
- interface
- branch road
- heat pump
- coil pipe
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a heat pump and a coil pipe thereof. The heat exchange effect of a heat exchanger in which the coil pipe serves as an evaporator and also as a condenser is improved. In an evaporation path of the coil pipe of the heat pump, a liquid refrigerant enters a refrigerant distributor through a first port for distribution and then passes through a three-way device to respectively enter a first branch pipe and a second branch pipe, the refrigerant passing through the first branch pipe flows out of a second port of a second collecting pipe after being evaporated, the refrigerant passing through the second branch pipe flows out of a third port of a first collecting pipe after being evaporated and then flows out after being converged with the refrigerant flowing out from the second port; in a condensation path of the coil pipe of the heat pump, a gas refrigerant flows in the second collecting pipe from the second port, then flows in the first branch pipe, passes through the three-way device, turns to enter the second branch pipe and then enter the first collecting pipe, and flows out from the third port of the first collecting pipe.
Description
Technical field
The present invention relates to heat pump and coil pipe thereof.
Background technology
Source pump, when designing, needs to take into account heat transfer effect when heat exchanger coils is condenser and as heat transfer effect during evaporimeter.In flow velocity, as flow velocity during evaporimeter high (exit velocity is about 3 times as entrance flow velocity during condenser, and the mass dryness fraction of entrance is about 20%), pressure drop is large, have impact on the mass flow of evaporating temperature and compressor; Low as flow velocity during condenser, need to get one section of conduct excessively cold simultaneously, easily cause local hydrops and flow distribution uneven.Existing coil heat exchanger, an import, an outlet, contrary as flow direction during condenser just in time with during evaporimeter, therefore need between condensing heat-exchange effect and evaporation and heat-exchange effect, carry out compromise in the design process to consider, heat exchanger can not be designed as single cooling system.
Summary of the invention
The object of the present invention is to provide a kind of heat pump coil pipe, it improves it as evaporimeter again as the heat transfer effect of the heat exchanger of condenser.
Another object of the present invention is to provide a kind of heat pump, comprise aforementioned hot pump dise pipe.
For realizing the heat pump coil pipe of described object, be characterized in the multiple heat exchange units comprising the first header, the second header, refrigerant distributor and be made up of capillary, each heat exchange unit comprises the first branch road, the second branch road and three-way device, first branch road is connected with the different port of three-way device respectively with a side of the second branch road, another side of first branch road connects described first header, and another side of the second branch road connects described second header;
Wherein, the evaporation paths of this heat pump coil pipe is that liquid refrigerant enters described refrigerant distributor through first interface and distributes, then through described three-way device, enter described first arm and described second arm respectively, the second interface from described second header after the cold-producing medium evaporation of described first arm flows out, the 3rd interface from described first header after the cold-producing medium evaporation of the second branch road flows out, and converges rear outflow with described second interface cold-producing medium out; The condensation path of this heat pump coil pipe is that gaseous refrigerant flows into described second header from described second interface, flow into described first branch road again, through described three-way device, turn to and enter described second branch road, enter into described first header again, flow out from described 3rd interface of described first header.
Described heat pump coil pipe, its further feature is in described evaporation paths, and liquid refrigerant enters described refrigerant distributor after the first non-return device.
Described heat pump coil pipe, its further feature is in described evaporation paths, and the cold-producing medium flowed out from described 3rd interface converges with described second interface cold-producing medium out after the second non-return device.
For realizing the heat pump of described object, comprise compressor, at least two heat pump coil pipes, cross valve and expansion valve, running refrigerating pattern or heating mode under the switching effect of cross valve, described heat pump coil pipe can run as evaporimeter and also can run as condenser, be characterized in, described heat pump coil pipe comprises the first header, second header, refrigerant distributor and the multiple heat exchange units be made up of capillary, each heat exchange unit comprises the first branch road, second branch road and three-way device, described first branch road is connected with the different port of described three-way device respectively with a side of described second branch road, another side of described first branch road connects described first header, another side of described second branch road connects described second header,
Wherein, the evaporation paths of described heat pump coil pipe is that liquid refrigerant enters described expansion valve from liquid pipe connection valve, described refrigerant distributor is entered through first interface, be assigned to described heat exchange unit, through described three-way device in described heat exchange unit, enter described first arm and described second arm respectively, the second interface from described second header after the cold-producing medium evaporation of described first arm flows out, the 3rd interface from described first header after the cold-producing medium evaporation of described second branch road flows out, and flow out to described cross valve after converging with described second interface cold-producing medium out, turn back to described compressor air suction end,
The condensation path of described heat pump coil pipe is that gaseous refrigerant is after described cross valve commutation, described second header is flowed into from described second interface, flow into described heat exchange unit again, through described first branch road in described heat exchange unit, again through described three-way device, turn to and enter described second branch road, then enter into described first header, flow out from described 3rd interface of described first header, flow to described expansion valve.
Described heat pump, its further feature is in described evaporation paths, and liquid refrigerant enters described refrigerant distributor after the first non-return device.
Described heat pump, its further feature is in described evaporation paths, and the cold-producing medium flowed out from described 3rd interface converges with described second interface cold-producing medium out after the second non-return device.
Described heat pump, its further feature is in described condensation path, and the cold-producing medium flowed out from described 3rd interface flows to described expansion valve after the 3rd non-return device.
The present invention adopts the separatory of distributor and three-way device to design, heat pump coil pipe pipe range when making evaporimeter is low, be conducive to reducing pressure drop, improve evaporating temperature, and during as condenser, the switching effect of three-way device can be utilized, increase the pipe range in the loop of single heat exchange unit, be conducive to obtaining high supercooling degree, therefore improve it as evaporimeter again as the heat transfer effect of the heat exchanger of condenser.
Accompanying drawing explanation
The above and other features of the present invention, character and advantage become more obvious by passing through below in conjunction with the description of drawings and Examples, wherein:
Fig. 1 is the schematic diagram of the evaporation paths of heat pump coil pipe in one embodiment of the invention;
Fig. 2 is the schematic diagram in the condensation path of heat pump coil pipe in Fig. 1.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the invention will be further described; set forth more details in the following description so that fully understand the present invention; but the present invention obviously can implement with multiple this alternate manner described that is different from; those skilled in the art when doing similar popularization, deduction without prejudice to when intension of the present invention according to practical situations, therefore should can not limit the scope of the invention with the content of this specific embodiment.
In embodiments of the invention, heat pump comprises compressor, at least two heat pump coil pipes, cross valve and expansion valve.Eliminate compressor in fig. 1 and 2, and only show a heat pump coil pipe, other heat pump coil pipes of display can not configure according to the structure of heat pump coil pipe described later and principle, a part at least two heat pump coil pipes is as evaporator operation, another part is as condenser working, and under the different working modes of heat pump, the function of this two parts heat pump coil pipe is replaced mutually, namely originally can switch to condenser as evaporimeter, can evaporimeter be switched to originally as condenser.In embodiment described later, will appreciate that the heat pump coil pipe shown in Fig. 1 and Fig. 2 takes into account heat transfer effect when heat exchanger coils is condenser and as heat transfer effect during evaporimeter.
As shown in Figure 1, multiple heat exchange units that heat pump coil pipe comprises the first header 1, second header 2, refrigerant distributor 3 and is made up of capillary, each heat exchange unit comprises the first branch road 51, second branch road 52 and three-way device 50, first branch road 51 is connected with the different port of three-way device 50 respectively with the right-hand end of the second branch road 52, the left-hand end that the left-hand end of the first branch road 51 connects the first header 1, second branch road 52 connects the second header 2.In fig. 1 and 2, show 7 heat exchange units altogether, the quantity of heat exchange unit can increase and decrease.Three-way device 50 can be the three-way connection not with Valve controlling, preferably selects Y shape three-way device.
As shown in Figure 1, the evaporation paths of heat pump coil pipe can be understood by the arrow in composition graphs, the liquid refrigerant exported by other heat pump coil pipes as condenser enters expansion valve 6 from liquid pipe connection valve (not showing in the drawings), refrigerant distributor 3 is entered through first interface 41, be assigned to each heat exchange unit, through three-way device 50 in heat exchange unit, enter the first arm 51 and the second arm 52 respectively, flow out from the second interface 42 of the second header 2 after the cold-producing medium evaporation of the first arm 51, flow out from the 3rd interface 43 of the first header 1 after the cold-producing medium evaporation of the second branch road 52, and flow out to cross valve 8 after converging with the second interface 42 cold-producing medium out, turn back to compressor air suction end.First header 1, second header 2 is now as discharge work.
As shown in Figure 2, the condensation path of heat pump coil pipe can be understood by the arrow in composition graphs equally, and gaseous refrigerant, after cross valve 6 commutates, flows into the second header 2 from the second interface 42, flow into heat exchange unit again, through the first branch road 51 in heat exchange unit, then through three-way device 50, turn to and enter the second branch road 52, enter into the first header 1 again, flow out from the 3rd interface 43 of the first header 1, flow to expansion valve 6, flow into other heat pump coil pipes as evaporator operation subsequently again.First header 1 is as collector tube work, and the second header 2 is now still as discharge work.
The auxiliary control element in evaporation paths or condensation path can comprise the first non-return device 71, second non-return device 72 and the 3rd non-return device 73, these non-return devices can be check valve or the valve that can control keying, and valve realizes one-way conduction function by cutting out and opening.
In the drawings, the first non-return device 71, second non-return device 72 and the 3rd non-return device 73 are check valve.In fig. 1 and 2, heat pump coil pipe has three interfaces 41,42,43, and first interface 41 is liquid phase interface, and the second interface 42 is gas phase interface, and the 3rd interface 43 is variable interface.Second interface 42 connects when applying to cross valve 8 or connects to the pipeline towards cross valve 8.First interface 41 connects distributor 3, and connected to expansion valve 6 by the first non-return device 71, non-return device 71 is expansion valve 6 dorsad.3rd interface 43 is connected by the second non-return device 72 with the second interface 42 or confluxes, and the second non-return device 72 dorsad the 3rd interface the 43, three interface 43 is also connected to expansion valve 6 by the 3rd non-return device 73, and the 3rd non-return device 73 points to expansion valve 6 entrance.In the embodiment shown in the drawings, carried out the flow direction of specification cold-producing medium by non-return device, when using as condenser as heat pump coil pipe, play conducting effect through the 3rd non-return device 73, the first non-return device 71, second non-return device 72 plays non-return effect.When heat pump coil pipe uses as evaporimeter, the first non-return device 71, second non-return device 72 plays conducting effect, and the 3rd non-return device 73 plays non-return effect.
In other embodiments of the invention, except being come by non-return device except the flow direction of specification cold-producing medium, also can adopt reversal valve or the flow direction that different pipelines carrys out specification cold-producing medium is set.
Relative to heat pump coil pipe in the past, previous embodiment tool has the following advantages:
Increase a condensation collector tube i.e. the first header 1, utilize the effect of non-return device, allow cold-producing medium flow out from this condensation liquid trap, be conducive to reducing the climb cold-producing medium that causes of liquid and distribute uneven situation;
By the method for designing of low pipe range when evaporimeter made by heat pump coil pipe, be conducive to reducing pressure drop, improve evaporating temperature; And during as condenser, the switching effect of three-way device can be utilized, increase the pipe range in single loop, be conducive to obtaining high supercooling degree;
Adopt the separatory design of distributor 3 and three-way device 50, be conducive to reducing distributor and capillary cost;
Very long in coil lengths, time circuitry number is few, can as alternative scheme, such as, 7 meters, coil pipe, it is less than normal that two branch roads do condenser pipe length, it is bigger than normal that three branch roads do evaporation length of pipe, selects this programme, as walking 4 branch roads when condenser, as 2 branch roads can be walked when evaporimeter, condensation effect and evaporation effect can be taken into account.
Although the present invention with preferred embodiment openly as above, it is not that any those skilled in the art without departing from the spirit and scope of the present invention, can make possible variation and amendment for limiting the present invention.Therefore, every content not departing from technical solution of the present invention, any amendment done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all fall within protection domain that the claims in the present invention define.
Claims (7)
1. heat pump coil pipe, it is characterized in that the multiple heat exchange units comprising the first header, the second header, refrigerant distributor and be made up of capillary, each heat exchange unit comprises the first branch road, the second branch road and three-way device, first branch road is connected with the different port of three-way device respectively with a side of the second branch road, another side of first branch road connects described first header, and another side of the second branch road connects described second header;
Wherein, the evaporation paths of this heat pump coil pipe is that liquid refrigerant enters described refrigerant distributor through first interface and distributes, then through described three-way device, enter described first arm and described second arm respectively, the second interface from described second header after the cold-producing medium evaporation of described first arm flows out, the 3rd interface from described first header after the cold-producing medium evaporation of the second branch road flows out, and converges rear outflow with described second interface cold-producing medium out; The condensation path of this heat pump coil pipe is that gaseous refrigerant flows into described second header from described second interface, flow into described first branch road again, through described three-way device, turn to and enter described second branch road, enter into described first header again, flow out from described 3rd interface of described first header.
2. heat pump coil pipe as claimed in claim 1, is characterized in that, in described evaporation paths, liquid refrigerant enters described refrigerant distributor after the first non-return device.
3. heat pump coil pipe as claimed in claim 1, is characterized in that in described evaporation paths, and the cold-producing medium flowed out from described 3rd interface converges with described second interface cold-producing medium out after the second non-return device.
4. heat pump, comprise compressor, at least two heat pump coil pipes, cross valve and expansion valve, running refrigerating pattern or heating mode under the switching effect of cross valve, described heat pump coil pipe can run as evaporimeter and also can run as condenser, it is characterized in that, described heat pump coil pipe comprises the first header, second header, refrigerant distributor and the multiple heat exchange units be made up of capillary, each heat exchange unit comprises the first branch road, second branch road and three-way device, described first branch road is connected with the different port of described three-way device respectively with a side of described second branch road, another side of described first branch road connects described first header, another side of described second branch road connects described second header,
Wherein, the evaporation paths of described heat pump coil pipe is that liquid refrigerant enters described expansion valve from liquid pipe connection valve, described refrigerant distributor is entered through first interface, be assigned to described heat exchange unit, through described three-way device in described heat exchange unit, enter described first arm and described second arm respectively, the second interface from described second header after the cold-producing medium evaporation of described first arm flows out, the 3rd interface from described first header after the cold-producing medium evaporation of described second branch road flows out, and flow out to described cross valve after converging with described second interface cold-producing medium out, turn back to described compressor air suction end,
The condensation path of described heat pump coil pipe is that gaseous refrigerant is after described cross valve commutation, described second header is flowed into from described second interface, flow into described heat exchange unit again, through described first branch road in described heat exchange unit, again through described three-way device, turn to and enter described second branch road, then enter into described first header, flow out from described 3rd interface of described first header, flow to described expansion valve.
5. heat pump as claimed in claim 4, is characterized in that, in described evaporation paths, liquid refrigerant enters described refrigerant distributor after the first non-return device.
6. heat pump as claimed in claim 4, is characterized in that in described evaporation paths, and the cold-producing medium flowed out from described 3rd interface converges with described second interface cold-producing medium out after the second non-return device.
7. heat pump as claimed in claim 4, is characterized in that in described condensation path, and the cold-producing medium flowed out from described 3rd interface flows to described expansion valve after the 3rd non-return device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510109689.6A CN104676959B (en) | 2015-03-12 | 2015-03-12 | Heat pump and its coil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510109689.6A CN104676959B (en) | 2015-03-12 | 2015-03-12 | Heat pump and its coil pipe |
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| Publication Number | Publication Date |
|---|---|
| CN104676959A true CN104676959A (en) | 2015-06-03 |
| CN104676959B CN104676959B (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510109689.6A Active CN104676959B (en) | 2015-03-12 | 2015-03-12 | Heat pump and its coil pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556322A (en) * | 2017-09-25 | 2019-04-02 | 宁波德业科技集团有限公司 | A kind of double-effect evaporation formula air-conditioning heat exchanger |
| CN110470074A (en) * | 2018-05-11 | 2019-11-19 | 开利公司 | Heat exchanger, heat pump system and heat-exchange method |
| CN112856565A (en) * | 2021-01-15 | 2021-05-28 | 科希曼电器有限公司 | Evaporator heat exchange system applicable to heating in northern area |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02259378A (en) * | 1989-03-29 | 1990-10-22 | Matsushita Seiko Co Ltd | Refrigerant distributor |
| KR20030003810A (en) * | 2001-07-04 | 2003-01-14 | 김강영 | Heat Pump System with Heat Exchanger for Exchanging Heat between Refrigerants |
| KR20040038567A (en) * | 2002-11-01 | 2004-05-08 | 류옥란 | Heat pump system |
| CN2926937Y (en) * | 2006-07-11 | 2007-07-25 | 特灵空调系统(江苏)有限公司上海研发分公司 | Heat exchanger of wind-cooling hot-pump set |
| KR100788302B1 (en) * | 2006-04-13 | 2007-12-27 | 주식회사 코벡엔지니어링 | High speed defrosting heat pump |
| CN202993689U (en) * | 2013-01-08 | 2013-06-12 | 中煤科工集团重庆研究院 | Evaporator for mining refrigerating unit |
| CN203687694U (en) * | 2014-01-14 | 2014-07-02 | 韩劭芳 | Air heat exchange device |
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2015
- 2015-03-12 CN CN201510109689.6A patent/CN104676959B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02259378A (en) * | 1989-03-29 | 1990-10-22 | Matsushita Seiko Co Ltd | Refrigerant distributor |
| KR20030003810A (en) * | 2001-07-04 | 2003-01-14 | 김강영 | Heat Pump System with Heat Exchanger for Exchanging Heat between Refrigerants |
| KR20040038567A (en) * | 2002-11-01 | 2004-05-08 | 류옥란 | Heat pump system |
| KR100788302B1 (en) * | 2006-04-13 | 2007-12-27 | 주식회사 코벡엔지니어링 | High speed defrosting heat pump |
| CN2926937Y (en) * | 2006-07-11 | 2007-07-25 | 特灵空调系统(江苏)有限公司上海研发分公司 | Heat exchanger of wind-cooling hot-pump set |
| CN202993689U (en) * | 2013-01-08 | 2013-06-12 | 中煤科工集团重庆研究院 | Evaporator for mining refrigerating unit |
| CN203687694U (en) * | 2014-01-14 | 2014-07-02 | 韩劭芳 | Air heat exchange device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556322A (en) * | 2017-09-25 | 2019-04-02 | 宁波德业科技集团有限公司 | A kind of double-effect evaporation formula air-conditioning heat exchanger |
| CN110470074A (en) * | 2018-05-11 | 2019-11-19 | 开利公司 | Heat exchanger, heat pump system and heat-exchange method |
| US11852390B2 (en) | 2018-05-11 | 2023-12-26 | Carrier Corporation | Heat exchanger, heat pump system and method for heat exchange |
| CN112856565A (en) * | 2021-01-15 | 2021-05-28 | 科希曼电器有限公司 | Evaporator heat exchange system applicable to heating in northern area |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104676959B (en) | 2017-03-01 |
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