CN108317772A - A kind of Gas-supplying enthalpy-increasing system and household electrical appliance - Google Patents
A kind of Gas-supplying enthalpy-increasing system and household electrical appliance Download PDFInfo
- Publication number
- CN108317772A CN108317772A CN201710031645.5A CN201710031645A CN108317772A CN 108317772 A CN108317772 A CN 108317772A CN 201710031645 A CN201710031645 A CN 201710031645A CN 108317772 A CN108317772 A CN 108317772A
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- CN
- China
- Prior art keywords
- shwoot
- subcooler
- gas
- evaporator
- supplying enthalpy
- Prior art date
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Classifications
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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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
-
- 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
- F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of Gas-supplying enthalpy-increasing system and household electrical appliance.Gas-supplying enthalpy-increasing system includes constituting compressor, four-way valve, indoor set heat exchanger, the first evaporator, shwoot subcooler and the second evaporator of refrigerant circulation circuit, compressor is also connect by four-way valve with shwoot subcooler, shwoot subcooler is connect with the first evaporator by first throttling device, shwoot subcooler is connect with the second evaporator by second throttling device, shwoot subcooler passes through tonifying Qi piping connection, the first check valve of blowdown pipe road setting with compressor gas supplementing opening；Overheat pipeline one end is connected across shwoot subcooler cooling medium liquid with four-way valve, and the other end is connected with the second evaporator.The Gas-supplying enthalpy-increasing system provided in the present invention, the advantages of shwoot subcooler and supercooling economizer can be comprehensively utilized, improve the efficiency of secondary air compensating, and then can solve the problems, such as that air compensation can only control intermediate pressure by electronic throttle device in the prior art and adjust, and system effectiveness when can also improve refrigeration cycle.
Description
Technical field
The present invention relates to technical field of water heaters more particularly to a kind of Gas-supplying enthalpy-increasing system and carry the Gas-supplying enthalpy-increasing system
The household electrical appliance of system.
Background technology
Currently, air source heat pump in order to promote low-temperature heating ability, mainly uses converter technique, auxiliary compressor, twin-stage
Compressor, Gas-supplying enthalpy-increasing system etc..Wherein Gas-supplying enthalpy-increasing is more mature and lower-cost selection, and the core of Gas-supplying enthalpy-increasing is
Second air entry is founded in the compression process of compressor, and the low pressure refrigerant gas of inflow compressor air suction mouth is made to be compressed
It is mixed with the saturation refrigerant gas entered from second air entry under the pressure after to intermediate pressure, continues to be compressed to exhaust
State.Form that there are mainly two types of above-mentioned air source heat pump raising low-temperature heatings：One is subcooler heating, another kind is shwoot
Device heats.Although both forms can improve heating capacity at low ambient temperatures, air compensation can only pass through electronic throttle
Device controls intermediate pressure and adjusts, and is adversely affected to air heat source pump refrigerating capacity.
Therefore, how to propose a kind of Gas-supplying enthalpy-increasing system, shwoot subcooler can be comprehensively utilized and the excellent of economizer is subcooled
Point improves the efficiency of secondary air compensating, and intermediate pressure can only be controlled by electronic throttle device to solve air compensation in the prior art
System effectiveness when adjusting, and improving refrigeration cycle is those skilled in the art's technical issues that need to address.
Invention content
It is an object of the invention to propose the advantages of a kind of Gas-supplying enthalpy-increasing system can comprehensively utilize flash evaporation and economizer,
The efficiency of tonifying Qi cycle is improved, intermediate pressure adjusting can only be controlled by electronic throttle device by solving air compensation in the prior art,
And improve system effectiveness problem when refrigeration cycle.
For this purpose, the present invention uses following technical scheme：
A kind of Gas-supplying enthalpy-increasing system, including sequentially connected compressor, the four-way for constituting refrigerant circulation circuit of head and the tail are provided
Valve, indoor set heat exchanger, the first evaporator, shwoot subcooler and the second evaporator, the compressor and the shwoot subcooler
Between also connected by four-way valve, the shwoot subcooler is connect with first evaporator by first throttling device, described
Shwoot subcooler is connect with second evaporator by second throttling device, the shwoot subcooler and the compressor tonifying Qi
Mouth is by tonifying Qi piping connection, and blowdown pipe road is provided with the first check valve, second evaporator and the four-way
The second check valve is additionally provided between valve；Further include overheat pipeline, described overheat pipeline one end passes through in the shwoot subcooler
Refrigerant liquid be connected with the four-way valve, the other end is connected with second evaporator.
Pipeline is overheated by setting in the present invention, and overheats cooling medium liquid and four-way valve that pipeline one end passes through shwoot subcooler
Connection, the refrigerant temperature overheated in pipeline is low with respect to the cooling medium liquid temperature in shwoot subcooler, and then can be with shwoot subcooler
In refrigerant carry out heat exchange, and then the refrigerant temperature in shwoot subcooler can be reduced, make gas coolant in shwoot subcooler
Liquid coolant can be subcooled into, actively adjust intermediate pressure, make air compensation that need not control intermediate pressure by electronic throttle device
Power can be adjusted directly, not interfere with the refrigerating capacity of air heat source pump.The Gas-supplying enthalpy-increasing system provided in the present invention, can be comprehensive
The advantages of closing using shwoot subcooler and supercooling economizer, improves the efficiency of secondary air compensating, and then can solve in the prior art
Air compensation can only control the problem of intermediate pressure is adjusted by electronic throttle device, and system when can also improve refrigeration cycle
Efficiency.
Preferably, regulating valve is also associated between the first throttling device and the indoor set heat exchanger, the tune
It is in parallel with first evaporator to save valve.
The purpose that regulating valve is arranged is that refrigerant circulation path is different when making the cooling system, heating, and then realizes and do not go the same way
Refrigeration, the heating task of diameter.
Preferably, the first throttling device, second throttling device are expansion valve.
Preferably, the part that the overheat pipeline stretches into shwoot subcooler is the coil pipe that straight tube or straight tube bending are formed.
Preferably, the overheat pipeline is an integral structure.
Overheat pipeline is an integral structure, and can be prevented each portion junction leakage of overheat pipeline, be influenced the entirety of the system
It uses, while coil pipe is formed for straight tube bending, overheat pipeline can be made to exchange heat in refrigerant to greatest extent, made in overheat pipeline
Refrigerant endothermic gasification.
Preferably, the control valve opening is controllable, for manually, it is pneumatic, surge or electronic.
Preferably, the pipeline that the shwoot subcooler is connected with first throttling device, second throttling device stretches into shwoot
In the refrigerant of subcooler, and the pipeline that the shwoot subcooler is connected with the compressor stretches into shwoot subcooler and positioned at sudden strain of a muscle
Send out subcooler refrigerant ullage.
The pipeline that shwoot subcooler is connected with first throttling device, second throttling device stretches into the refrigerant of shwoot subcooler
It can ensure the pipeline that liquid refrigerants is thoroughly mixed with the liquid coolant in shwoot subcooler, and shwoot subcooler is connected with compressor
Stretching into can then ensure to enter the gaseous coolant in compressor in shwoot subcooler and positioned at shwoot subcooler refrigerant ullage
It will not be mixed with liquid refrigerants, and then improve energy utilization rate.
Preferably, the regulating valve is check valve or solenoid valve or expansion valve.
Regulating valve is entered using check valve or solenoid valve or expansion valve, system refrigerant in process of refrigerastion from regulating valve
Indoor set heat exchanger prevents cold to be lost in the first evaporator；Indoor set heat exchanger in heating operations can also be prevented simultaneously
In refrigerant be just directly entered expansion valve without supercooling, and then reduce refrigerant and pass through the mass dryness fraction after first throttling device.
Preferably, first evaporator and the second evaporator are integral structure.
A kind of household electrical appliance, including Gas-supplying enthalpy-increasing system described above are additionally provided, the household electrical appliance are Heat Pump
Hydrophone or air-conditioning.
The household electrical appliance provided in the present invention improve the advantages of capable of comprehensively utilizing shwoot subcooler and economizer is subcooled
The efficiency of secondary air compensating, and then can solve air compensation in the prior art can only be by electronic throttle device control intermediate pressure tune
The problem of section, and system effectiveness when can also improve refrigeration cycle.
First evaporator exists as heating subcooler and bottom antifrost coil pipe.
Description of the drawings
Fig. 1 is the structural schematic diagram of Gas-supplying enthalpy-increasing system provided by the invention.
In figure：
1, compressor；2, four-way valve；3, indoor set heat exchanger；4, the first evaporator；5, shwoot subcooler；6, the second evaporation
Device；7, first throttling device；8, second throttling device；9, the first check valve；10, pipeline is overheated；11, regulating valve；12, second is single
To valve；13, tonifying Qi pipeline.
Specific implementation mode
In order to make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with the accompanying drawings and by specific
Embodiment is come the technical solution that further illustrates the present invention.
As shown in Figure 1, provide a kind of Gas-supplying enthalpy-increasing system in the present embodiment, the excellent of flash evaporation and economizer is comprehensively utilized
Point improves the efficiency of tonifying Qi cycle, can actively adjust intermediate choke pressure, which includes that the sequentially connected composition of head and the tail is cold
Compressor 1, four-way valve 2, indoor set heat exchanger 3, the first evaporator 4, shwoot subcooler 5 and the second evaporator of matchmaker's circulation loop
6, it is wherein also connected by four-way valve 2 between compressor 1 and the shwoot subcooler 5, the shwoot subcooler 5 and first evaporates
Device 4 is then connect by second throttling device 8 by 7 connections, the shwoot subcooler 5 with the second evaporator 6, the shwoot supercooling
Device 5 is connect with 1 gas supplementing opening of the compressor by tonifying Qi pipeline 13, and tonifying Qi pipeline 13 is drawing the gas in shwoot subcooler
Enter into compressor 1, is recycled as compressor tonifying Qi；It is provided with the first check valve 9 on the tonifying Qi pipeline 13, setting the
The purpose of one check valve 9 makes to prevent the refrigerant in compressor 1 from passing through tonifying Qi pipeline to be flowed into shwoot subcooler 2, forms refrigerant
Crossfire；It is additionally provided with the second check valve 12 between second evaporator 6 and the four-way valve 2, the purpose of the second check valve 12 is set
It is to prevent the part refrigerant in heating operations in the second evaporator 6 from directly being flowed back in compressor 1 by four-way valve 2, influences to make
Thermal effect；The system further includes overheat pipeline 10, and described 10 one end of overheat pipeline passes through 5 cooling medium liquid of shwoot subcooler and institute
It states four-way valve 2 to be connected, the other end is connected with second evaporator 6, and the refrigerant gas-liquid mixture in the second evaporator 6 passes through
Overheat pipeline again flows into carries out heat exchange with the refrigerant in shwoot subcooler in shwoot subcooler 2, and then improves overheat pipeline
Interior refrigerant temperature.
The first throttling device 7, second throttling device 8 are expansion valve, and the liquid coolant of high temperature and pressure can be made logical
Its throttling is crossed as the moist steam of low-temp low-pressure.
Regulating valve 11, regulating valve 11 and institute are also associated between above-mentioned first throttling device 7 and the indoor set heat exchanger 3
It is in parallel to state the first evaporator 4；Wherein regulating valve 11 is check valve, and the gas in shwoot subcooler 2 can be made to pass through the regulating valve
11 enter in indoor set heat exchanger 3 purpose for realizing indoor refrigeration cool-down.11 aperture of regulating valve is controllable, for manually, it is pneumatic,
It surges or electronic.
The part that the overheat pipeline 10 stretches into shwoot subcooler 5 is the coil pipe that straight tube or straight tube bending are formed.The present embodiment
It is the coil pipe that straight tube bending is formed that middle overheat pipeline, which stretches into the part in shwoot subcooler 5, this kind of structure can be such that refrigerant is dodging
Sending out the residence time in subcooler 5 increases, so can enable refrigerant in overheat pipeline 10 fully in shwoot subcooler 5
Refrigerant carries out heat exchange, keeps the refrigerant in overheat pipeline 10 abundant by gasification.Meanwhile leaking occurs in overheat pipeline in order to prevent
Problem, the overheat pipeline are an integral structure.
The pipeline that the shwoot subcooler 5 is connected with first throttling device 7, second throttling device 8 stretches into shwoot subcooler 5
Refrigerant in, and the pipeline that is connected with the compressor 1 of the shwoot subcooler 5 stretches into shwoot subcooler 5 and is located at shwoot
5 refrigerant ullage of subcooler.
Above system heating operations are as follows：
As shown in Figure 1, four-way valve inside solid part indicates that refrigerant passage path when heating, first high temperature and pressure refrigerant pass through
For the outlet of compressor 1 by the solid line channel of four-way valve 2, get in becomes cryogenic high pressure after releasing heat in machine heat exchanger 3
Then liquid enters supercooling in the first evaporator 4 from indoor heat exchanger 3, in then becoming after the throttling of first throttling device 7
The gas-liquid mixed refrigerant of middle benefit gas pressure then enters in shwoot subcooler 5 and carries out gas-liquid separation, wherein the liquid coolant after separation is logical
Crossing second throttling device 8 and continuing throttling becomes the gas-liquid mixture of low-temp low-pressure, and the gas-liquid mixture of low-temp low-pressure enters second
Gas-Liquid Absorption heat is carried out in evaporator 6, is then again introduced into shwoot subcooler 5 and shwoot subcooler by overheating pipeline 10
Refrigerant heat exchange in 5, becomes the saturated gas of low-temp low-pressure, is then returned to by four-way valve 2, wherein in shwoot subcooler 5
Gas coolant returns to 1 air entry of compressor by tonifying Qi pipeline 13.
First evaporator, 4 and second evaporator 6 is integral structure.First evaporator 4 is located at the second evaporator
Bottom, and the two is connected by fin, and the first evaporator temperature is more than the second evaporator temperature, can will be warm by fin
Degree is corresponding to be transmitted, and the first evaporator 4 exists as heating shwoot subcooler 5 and bottom antifrost coil pipe.
The present embodiment also additionally provides a kind of household electrical appliance, including Gas-supplying enthalpy-increasing system described above, wherein household electric
Device is Teat pump boiler or air-conditioning.
The household electrical appliance provided in the present invention improve the advantages of capable of comprehensively utilizing shwoot subcooler and economizer is subcooled
The efficiency of secondary air compensating, and then can solve air compensation in the prior art can only be by electronic throttle device control intermediate pressure tune
The problem of section, and system effectiveness when can also improve refrigeration cycle.
Above system process of refrigerastion is as follows：
As shown in Figure 1, dotted line in four-way valve 2 indicates refrigerant circulation path in four-way valve 2 when refrigeration, high temperature when refrigeration
High pressure refrigerant comes out from compressor 1, by the refrigerating channel (dotted line expression) of four-way valve 2 and the second check valve 12, enters
Second evaporator 6 becomes the liquid of cryogenic high pressure after releasing heat, becomes pressing in low temperature after the throttling of second throttling device 8
Gas-liquid mixed then enters in shwoot subcooler 5 and carries out gas-liquid separation, and the liquid of separation continues to save by first throttling device 7
Become low-temp low-pressure refrigerant after stream, getting in machine heat exchanger 3 by regulating valve 11 absorbs heat, is subsequently changed to low-temp low-pressure
Gas then flows through four-way valve 2 and returns to 1 air entry of compressor, the gas of separation then by tonifying Qi pipeline 13 enter compressor 1 into
Row recompression.
Note that the above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The industry
Technical staff it should be appreciated that the present invention is not limited to the embodiments described above, described in the above embodiment and specification
Merely illustrate the principles of the invention, without departing from the spirit and scope of the present invention, the present invention also have various change and
It improves, these changes and improvements all fall within the protetion scope of the claimed invention, and claimed range of the invention is by appended
Claims and its equivalent thereof.
Claims (10)
1. a kind of Gas-supplying enthalpy-increasing system, which is characterized in that including the sequentially connected compressor for constituting refrigerant circulation circuit of head and the tail
(1), four-way valve (2), indoor set heat exchanger (3), the first evaporator (4), shwoot subcooler (5) and the second evaporator (6), it is described
It is also connect by four-way valve (2) between compressor (1) and the shwoot subcooler (5), the shwoot subcooler (5) and described the
One evaporator (4) is connected by first throttling device (7), and the shwoot subcooler (5) and second evaporator (6) pass through the
Two throttling sets (8) connect, and the shwoot subcooler (5) is connect with the compressor (1) gas supplementing opening by tonifying Qi pipeline (13),
And the first check valve (9) is provided on the tonifying Qi pipeline (13), between second evaporator (6) and the four-way valve (2)
It is additionally provided with the second check valve (12)；Further include overheat pipeline (10), described overheat pipeline (10) one end passes through the shwoot mistake
Refrigerant liquid in cooler (5) is connected with the four-way valve (2), and the other end is connected with second evaporator (6).
2. Gas-supplying enthalpy-increasing system according to claim 1, which is characterized in that the first throttling device (7) and the room
Regulating valve (11) is also associated between interior machine heat exchanger (3), the regulating valve (11) is in parallel with the first evaporator (4).
3. Gas-supplying enthalpy-increasing system according to claim 2, which is characterized in that the first throttling device (7), the second throttling
Device (8) is expansion valve.
4. Gas-supplying enthalpy-increasing system according to claim 3, which is characterized in that the overheat pipeline (10) stretches into shwoot supercooling
The part of device (5) is the coil pipe that straight tube or straight tube bending are formed.
5. Gas-supplying enthalpy-increasing system according to claim 4, which is characterized in that the overheat pipeline is an integral structure.
6. Gas-supplying enthalpy-increasing system according to claim 5, which is characterized in that regulating valve (11) aperture is controllable, is hand
It moves, is pneumatic, surging or is electronic.
7. Gas-supplying enthalpy-increasing system according to claim 6, which is characterized in that the shwoot subcooler (5) and first throttle
The connected pipeline of device (7), second throttling device (8) stretches into the refrigerant of shwoot subcooler (5), and the shwoot subcooler
(5) pipeline being connected with the compressor (1) stretches into shwoot subcooler (5) and on shwoot subcooler (5) refrigerant liquid level
Side.
8. according to claim 2-7 any one of them Gas-supplying enthalpy-increasing systems, which is characterized in that the regulating valve (11) is unidirectional
Valve or solenoid valve or expansion valve.
9. Gas-supplying enthalpy-increasing system according to claim 8, which is characterized in that first evaporator and the second evaporator are
One overall structure.
10. a kind of household electrical appliance, which is characterized in that described including such as claim 1-9 any one of them Gas-supplying enthalpy-increasing system
Household electrical appliance are Teat pump boiler or air-conditioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031645.5A CN108317772B (en) | 2017-01-17 | 2017-01-17 | Air-supplying and enthalpy-increasing system and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031645.5A CN108317772B (en) | 2017-01-17 | 2017-01-17 | Air-supplying and enthalpy-increasing system and household appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108317772A true CN108317772A (en) | 2018-07-24 |
| CN108317772B CN108317772B (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710031645.5A Active CN108317772B (en) | 2017-01-17 | 2017-01-17 | Air-supplying and enthalpy-increasing system and household appliance |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917061A (en) * | 2018-08-06 | 2018-11-30 | 深圳麦克维尔空调有限公司 | A kind of cold water heat pump unit and air-conditioning equipment |
| CN109186146A (en) * | 2018-08-24 | 2019-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Flash evaporation, air handling system |
| CN109595926A (en) * | 2018-11-22 | 2019-04-09 | 中南大学 | A kind of Gas-supplying enthalpy-increasing Analysis of Heat Pump Drying System and drying means |
| CN114216286A (en) * | 2021-12-17 | 2022-03-22 | 中山市爱美泰电器有限公司 | Heat pump host with enthalpy-increasing function system |
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| CN109595926A (en) * | 2018-11-22 | 2019-04-09 | 中南大学 | A kind of Gas-supplying enthalpy-increasing Analysis of Heat Pump Drying System and drying means |
| CN114216286A (en) * | 2021-12-17 | 2022-03-22 | 中山市爱美泰电器有限公司 | Heat pump host with enthalpy-increasing function system |
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| Publication number | Publication date |
|---|---|
| CN108317772B (en) | 2021-03-09 |
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