CN109386983A - Two pipes system air injection enthalpy-increasing outdoor unit and multi-line system - Google Patents
Two pipes system air injection enthalpy-increasing outdoor unit and multi-line system Download PDFInfo
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- CN109386983A CN109386983A CN201811227632.6A CN201811227632A CN109386983A CN 109386983 A CN109386983 A CN 109386983A CN 201811227632 A CN201811227632 A CN 201811227632A CN 109386983 A CN109386983 A CN 109386983A
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- air injection
- increasing
- injection enthalpy
- check valve
- interface
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
-
- 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
-
- 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
- F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
- F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
- F25B2313/02533—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements during heating
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/23—Separators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
A kind of two pipes system air injection enthalpy-increasing outdoor unit provided by the invention and multi-line system, two pipes system air injection enthalpy-increasing outdoor unit include: outdoor heat exchanger, first interface and second interface；Air injection enthalpy-increasing compressor, including exhaust outlet, gas returning port and jet port；Commutate component, including first end, to the 4th end, the first end for the component that commutates connects with exhaust outlet, and the second end for the component that commutates connects with gas returning port；Flash vessel, including refrigerant inlet, gas outlet and liquid outlet, gas outlet connect with jet port, and liquid outlet connects with the entrance of first interface and outdoor heat exchanger respectively；One end of orifice union, orifice union connects with refrigerant inlet, and the other end connects with second interface；First pipeline, one end connects with the outlet of outdoor heat exchanger, and the other end increases flash vessel and orifice union between orifice union and second interface, refrigerant circulation when dramatically increasing low-temperature heating operation reaches extension low-temperature heating range of operation in two pipes system air injection enthalpy-increasing outdoor unit.
Description
Technical field
The present invention relates to refrigeration technology fields, more specifically, are related to a kind of two pipes system air injection enthalpy-increasing outdoor unit and one kind
Two pipes system air injection enthalpy-increasing multi-line system.
Background technique
Conventional air injection enthalpy-increasing low temperature heat-flash technology is also only applied in heat pump and three-pipe heating recovery system at present, two pipes
System processed is difficult to realize spray enthalpy in compressor puff prot since its outer pusher side muffler only has low pressure.Two pipes system system in this way is more
On-line system at low ambient temperatures, can be low due to environment temperature, causes low-pressure lateral pressure low, return-air density is small, refrigerant circulation
It is small, and then there is the problem of heating capacity deficiency, while will appear under two pipes system system high temperature environment, discharge superheat is high, system
The hypodynamic problem of cold energy.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.
One aspect of the present invention provides a kind of two pipes system air injection enthalpy-increasing outdoor unit.
One aspect of the present invention provides a kind of two pipes system air injection enthalpy-increasing multi-line system.
In view of a kind of above-mentioned, two pipes system air injection enthalpy-increasing outdoor unit provided by the invention, two pipes system air injection enthalpy-increasing outdoor unit packet
It includes: outdoor heat exchanger, first interface and second interface；Air injection enthalpy-increasing compressor, including exhaust outlet, gas returning port and jet port；It changes
To component, including first end, to the 4th end, the first end for the component that commutates connects with exhaust outlet, the second end and return-air of the component that commutates
Mouth connects；Flash vessel, including refrigerant inlet, gas outlet and liquid outlet, gas outlet connect with jet port, and liquid outlet is respectively with first
The entrance of interface and outdoor heat exchanger connects；One end of orifice union, orifice union connects with refrigerant inlet, the other end and second
Interface connects；First pipeline, one end connect with the outlet of outdoor heat exchanger, the other end be located at orifice union and second interface it
Between.
Two pipes system air injection enthalpy-increasing outdoor unit provided by the invention includes outdoor heat exchanger, first interface, second interface, jet
Enthalpy-increasing compressor, commutation component, flash vessel, orifice union and the first pipeline, the first end for the component that commutates connect with exhaust outlet, change
Connect to the second end of component with gas returning port, the gas outlet of flash vessel connects with jet port, and the liquid outlet of flash vessel is respectively with
The entrance of one interface and outdoor heat exchanger connects, and the refrigerant inlet of flash vessel connects with one end of orifice union, orifice union
The other end connects with second interface, and one end of the first pipeline connects with the outlet of outdoor heat exchanger, the other end position of the first pipeline
Between orifice union and second interface, by the present invention in that being flowed out with air injection enthalpy-increasing compressor from air injection enthalpy-increasing heat exchanger
Gaseous refrigerant directly enters compressor from the intermediate injection mouth of compressor to carry out Gas-supplying enthalpy-increasing compression, while increasing flash vessel
And orifice union, refrigerant circulation when dramatically increasing low-temperature heating operation reach extension in two pipes system air injection enthalpy-increasing outdoor unit
Low-temperature heating range of operation significantly improves heating capacity, and reaches the mesh for promoting high-temperature refrigeration ability reduction discharge superheat
's.
Furthermore increase by the first pipeline, so that spray can be achieved under refrigeration, heating, main refrigeration and four kinds of modes of main heating
The effect of gas increasing enthalpy.
Flash vessel is the container that can accommodate refrigerant, and usually there are three interfaces: being mixed for refrigerant air-liquid
Refrigerant inlet, refrigerant gas outlet and the refrigerant liquid outlet that object enters.Its working principle is that: the system come from upstream throttle element
The gas-liquid mixture of cryogen is flowed into from the refrigerant inlet of flash vessel, and due to volume sudden enlargement, a large amount of refrigerants are from liquid refrigeration
Shwoot comes out in agent, becomes the lower refrigerant gas of temperature, from gas outlet flow out, without shwoot liquid refrigerant then from
Liquid outlet flows out flash vessel.So that not carrying any drop at the gas outlet of flash vessel secretly, any gas is not mixed at liquid outlet.
Since the gas outlet of flash vessel connects with jet port, in air injection enthalpy-increasing, it is ensured that gas outlet discharge
Refrigerant is gaseous coolant, effectively prevents air injection enthalpy-increasing compressor and the problem of liquid hammer occurs, ensure that air injection enthalpy-increasing compresses
The service life of machine.
Two pipes system air injection enthalpy-increasing outdoor unit is two pipes system structure, there is two connecting tubes, i.e. first interface between outer machine and interior machine
And second interface with indoor unit for being connected, it is provided by the invention compared with three control multi-line systems in the related technology
Two pipes system heat-reclamation multi-compressors system structure is simple, has saved copper pipe material, has reduced installation cost.
In addition, two pipes system air injection enthalpy-increasing outdoor unit provided by the invention is applied to two pipes system air injection enthalpy-increasing multi-line system,
And the multi-line system is heat-reclamation multi-compressors, and the meaning of recuperation of heat is exactly the heat of recycling refrigeration room discharge for heating
Room heating, specifically, system absorb heat from refrigeration room by indoor set heat exchanger, then pass through indoor set heat exchanger
The heat is completely or partially released and is used to heat to heating room, system is insufficient or remaining heat passes through outdoor unit heat exchanger again
It is drawn from environment.And for common heat pump multi-connected machine, it heats indoor unit institute's calorific requirement and absorbs heat all from outdoor unit heat exchanger
And power consumption.Therefore, common heat pump is compared, heat-reclamation multi-compressors have apparent energy-saving effect.
There are 4 kinds of operational modes for heat-reclamation multi-compressors: refrigeration, main refrigeration, main heating and heating.When the interior of all operations
When machine is all in refrigerating/heating mode, outdoor unit is run under refrigerating/heating mode；Freeze again when the indoor unit of operation is existing
When having heating and cooling load to be greater than heating load, outdoor unit will be run under main refrigeration mode；When the indoor unit of operation is existing
Refrigeration has heating and cooling load to be less than heating load again when, outdoor unit will be run under main heating mode.If operation refrigeration
The required flow of indoor unit and heating indoor unit is just equal, then system is with total heat recovery mode operation.
In addition, the two pipes system air injection enthalpy-increasing outdoor unit that above-mentioned technical proposal provides according to the present invention also has additional skill as follows
Art feature:
In any of the above-described technical solution, it is preferable that the third end for the component that commutates switchably is connected to outdoor heat exchanger
Entrance or outdoor heat exchanger outlet, the 4th end of the component that commutates switchably is connected to second interface or first interface.
In the technical scheme, the commutate third end of component is switchably connected to the entrance of outdoor heat exchanger or outdoor is changed
4th end of the outlet of hot device, the component that commutates switchably is connected to second interface or first interface, in two pipes system air injection enthalpy-increasing
When multi-line system is refrigeration and main refrigeration mode, the third end for the component that commutates is connected with the entrance of outdoor heat exchanger, commutation group
4th end of part is connected with second interface；When two pipes system air injection enthalpy-increasing multi-line system is heating and main heating mode, commutation
The third end of component is connected with the outlet of outdoor heat exchanger, and the 4th end of the component that commutates is connected with first interface, to realize refrigerant
Different flow directions.
In any of the above-described technical solution, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the first solenoid valve, setting
Between gas outlet and jet port, the conducting direction of the first solenoid valve is by gas outlet to jet port direction.
In the technical scheme, two pipes system air injection enthalpy-increasing outdoor unit includes the first solenoid valve, the conducting of the first solenoid valves
Power-failure close, and in the conducting of the first solenoid valves, the conducting direction of the first solenoid valve is by gas outlet to jet port side
To the phenomenon that only allowing direction conducting of the refrigerant from gas outlet to jet port, avoid the occurrence of refrigerant return.
In any of the above-described technical solution, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the first check valve, setting
On the first pipeline, the conducting direction of the first check valve is to be exported to orifice union direction by outdoor heat exchanger.
In the technical scheme, by increasing by the first pipeline, outdoor heat exchanger is exported to be connected between orifice union,
And the first check valve is set on the first pipeline, add the first check valve between outdoor heat exchanger outlet and orifice union, prevents from making
It collaborates between outdoor heat exchanger outlet and orifice union when hot, when being only allowed in refrigeration and main refrigeration mode, is changed by outdoor
The refrigerant of the outlet outflow of hot device flows into orifice union by the first check valve, and in heating and main heating mode, first
Closed check valve, so that the first pipeline can not be passed through by the refrigerant of the outlet outflow of outdoor heat exchanger.
In any of the above-described technical solution, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: second one-way valve, and second
First interface is connected by check valve with liquid outlet, and the conducting direction of second one-way valve is the direction by liquid outlet to first interface；
Second interface is connected by third check valve, third check valve with orifice union, and the conducting direction of third check valve is to be connect by second
Mouthful to the direction of orifice union.
In the technical scheme, two pipes system air injection enthalpy-increasing outdoor unit includes second one-way valve, the conducting side of second one-way valve
To for by the direction of liquid outlet to first interface, one end of second one-way valve between liquid outlet and outdoor heat exchanger entrance,
The other end of second one-way valve is connected with first interface.In refrigeration and main refrigeration mode, second one-way valve is opened, so that by
The refrigerant of the liquid outlet outflow of flash vessel flows to first interface by second one-way valve.And in heating and main heating mode, the
Two closed check valves can not can only pass through outdoor heat exchanger by second one-way valve by the refrigerant that the liquid outlet of flash vessel flows out
Entrance.
Further, two pipes system air injection enthalpy-increasing outdoor unit includes third check valve, and the conducting direction of third check valve is served as reasons
Second interface is to the direction of orifice union.In heating and main heating mode, third check valve is opened, by second interface outflow
Refrigerant flows to orifice union direction by third check valve.In refrigeration and main refrigeration mode, third closed check valve, by first
The refrigerant of pipeline outflow is only capable of flowing to orifice union.
In any of the above-described technical solution, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the 4th check valve, and the 4th
Second interface is connected by check valve with the 4th end of commutation component, and the conducting direction of the 4th check valve is by second interface to commutation
The direction at the 4th end of component；First interface is connected by the 5th check valve, the 5th check valve with the 4th end of commutation component, and the 5th
The conducting direction of check valve is the 4th end to the direction of first interface by commutation component.
In the technical scheme, two pipes system air injection enthalpy-increasing outdoor unit includes the 4th check valve and the 5th check valve, and the 4th is single
Second interface is connected with the 4th end of commutation component to valve, and the conducting direction of the 4th check valve is by second interface to changing
To the direction at the 4th end of component, first interface is connected by the 5th check valve with the 4th end of commutation component, the 5th check valve
Conducting direction is the 4th end to the direction of first interface by commutation component, and when carrying out refrigeration and main refrigeration mode, the 4th is single
To valve conducting, the 5th check valve closure, when carrying out heating and main heating mode, the conducting of the 5th check valve, the 4th check valve are closed
It closes.
In any of the above-described technical solution, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the 6th check valve, and the 6th
The third end for the component that commutates is connected by check valve with the entrance of outdoor heat exchanger, and the conducting direction of the 6th check valve is by commutation group
The third end of part to the direction of outdoor heat exchanger；7th check valve, the 7th check valve change at the third end for the component that commutates with outdoor
The outlet of hot device is connected, and the conducting direction of the 7th check valve is by the side at the third end for being exported to commutation component of outdoor heat exchanger
To.
In the technical scheme, two pipes system air injection enthalpy-increasing outdoor unit includes: the 6th check valve and the 7th check valve, and the 6th is single
It is connected to valve and the 5th check valve with the third end of commutation component, the other end of the 6th check valve and the 7th check valve is then distinguished
It is connected with the outlet of the entrance of outdoor heat exchanger and outdoor heat exchanger, when carrying out refrigeration and main refrigeration mode, the 6th check valve
Conducting, the 7th check valve closure, when carrying out heating and main heating mode, the conducting of the 7th check valve, the 6th check valve closure.
In any of the above-described technical solution, it is preferable that orifice union include at least one throttling set for being connected in series with extremely
Few 8th check valve, the conducting direction of the 8th check valve are the direction by second interface to refrigerant inlet.
In the technical scheme, orifice union includes at least one throttling set for being connected in series and at least one is the 8th unidirectional
Valve, the conducting direction of the 8th check valve are by subcooler to the direction of outdoor heat exchanger entrance, can be a throttling set string
Join the 8th check valve, or connects multiple 8th check valves, multiple throttling sets series connection one for throttling set
To guarantee the effect of reducing pressure by regulating flow, and better antihypertensive effect may be implemented in eight check valves after multilevel decompression.
In any of the above-described technical solution, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the second pipeline, will be vented
Mouth is connected with first interface；Second solenoid valve is arranged on the second pipeline, the conducting direction of second solenoid valve be by exhaust outlet extremely
The direction of first interface.
In the technical scheme, two pipes system air injection enthalpy-increasing outdoor unit include the second pipeline and be located on the second pipeline second
Solenoid valve, when carrying out refrigeration mode, second solenoid valve closure all passes through the of commutation component by the refrigerant of exhaust outlet discharge
Three ends enter the entrance of outdoor heat exchanger；Main refrigeration mode is being carried out, second solenoid valve is opened, the refrigerant portion being discharged by exhaust outlet
Dividing the entrance for entering outdoor heat exchanger by the third end for the component that commutates, another part enters first interface by second solenoid valve,
To guarantee that refrigeration and main refrigeration both of which may be implemented in two pipes system air injection enthalpy-increasing multi-line system.
In any of the above-described technical solution, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the 9th check valve, and the 9th
The entrance of outdoor heat exchanger is connected by check valve with liquid outlet, and the conducting direction of the 9th check valve is by liquid outlet to outdoor heat exchange
The direction of the entrance of device.
In the technical scheme, two pipes system air injection enthalpy-increasing outdoor unit includes the 9th check valve, the conducting side of the 9th check valve
To for by the direction of the entrance of liquid outlet to outdoor heat exchanger.In refrigeration and main refrigeration mode, the 9th closed check valve, by dodging
The refrigerant of the liquid outlet outflow of steaming device can not enter the entrance of outdoor heat exchanger by the 9th check valve, can only be single by second
Pipeline where to valve enters first interface.In heating and main heating mode, the 9th check valve is opened, and goes out liquid by flash vessel
The refrigerant of mouth outflow enters the entrance of outdoor heat exchanger by the 9th check valve.
A kind of two pipes system air injection enthalpy-increasing multi-line system, two pipes system air injection enthalpy-increasing are provided according to an aspect of the present invention
Multi-line system includes the two pipes system air injection enthalpy-increasing outdoor unit such as any of the above-described technical solution, therefore, the two pipes system air injection enthalpy-increasing
Multi-line system has whole beneficial effects of the two pipes system air injection enthalpy-increasing outdoor unit such as any of the above-described technical solution.
Additional aspect and advantage according to the present invention will provide in following description section, partially will be from following description
In become obvious, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
The structure that Fig. 1 shows the two pipes system air injection enthalpy-increasing multi-line system of one embodiment of the present of invention offer is shown
It is intended to；
Fig. 2 shows the another structures of the two pipes system air injection enthalpy-increasing multi-line system of one embodiment of the present of invention offer to show
It is intended to；
Fig. 3 shows the two pipes system air injection enthalpy-increasing multi-line system of one embodiment of the present of invention offer in refrigeration mode
Structural schematic diagram；
Fig. 4 shows the two pipes system air injection enthalpy-increasing multi-line system of one embodiment of the present of invention offer in heating mode
Structural schematic diagram；
Fig. 5 shows the two pipes system air injection enthalpy-increasing multi-line system of one embodiment of the present of invention offer in main refrigeration mode
When structural schematic diagram；
Fig. 6 shows the two pipes system air injection enthalpy-increasing multi-line system of one embodiment of the present of invention offer in main heating mode
When structural schematic diagram；
Fig. 7 shows the pressure-enthalpy chart of the two pipes system air injection enthalpy-increasing multi-line system of one embodiment of the present of invention offer.
Appended drawing reference:
Wherein, corresponding relationship of the Fig. 1 into Fig. 6 between appended drawing reference and component names are as follows:
10 outdoor heat exchangers, 12 first interfaces, 14 second interfaces, 16 air injection enthalpy-increasing compressors, 162 exhaust outlets, 164 return-airs
Mouthful, 166 jet ports, 18 commutation components, 20 flash vessels, 202 refrigerant inlets, 204 gas outlets, 206 liquid outlets, 22 orifice unions,
222 throttling sets, 224 the 8th check valves, 24 first pipelines, 26 first solenoid valves, 28 first check valves, 30 second one-way valves,
32 third check valves, 34 the 4th check valves, 36 the 5th check valves, 38 the 6th check valves, 40 the 7th check valves, 42 second electromagnetism
Valve, 44 the 9th check valves, 46 two pipes system air injection enthalpy-increasing indoor units, 48 refrigerant flow direction switching devices, 50 gas-liquid separators, 52
One subcooler, 54 second subcoolers.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
Implement in a manner of using other than the one described here, therefore, protection scope of the present invention is not by following public tool
The limitation of body embodiment.
It is described referring to Fig. 1 to Fig. 7 outside the two pipes system air injection enthalpy-increasing room provided according to one embodiment of present invention
Machine and two pipes system air injection enthalpy-increasing multi-line system.
As shown in Figures 1 to 6, a kind of two pipes system air injection enthalpy-increasing outdoor unit provided by the invention, two pipes system air injection enthalpy-increasing room
Outer machine includes: outdoor heat exchanger 10, first interface 12 and second interface 14；Air injection enthalpy-increasing compressor 16, including exhaust outlet 162,
Gas returning port 164 and jet port 166；Commutate component 18, including first end is to the 4th end, the first end and exhaust outlet of the component 18 that commutates
162 connect, and the second end of commutation component 18 connects with gas returning port 164；Flash vessel 20, including refrigerant inlet 202, gas outlet 204
And liquid outlet 206, gas outlet 204 connect with jet port 166, liquid outlet 206 respectively with first interface 12 and outdoor heat exchanger 10
Entrance connect；One end of orifice union 22, orifice union 22 connects with refrigerant inlet 202, the other end and 14 phase of second interface
It connects；First pipeline 24, one end connect with the outlet of outdoor heat exchanger 10, and the other end is located at orifice union 22 and second interface 14
Between.
Two pipes system air injection enthalpy-increasing outdoor unit provided by the invention includes outdoor heat exchanger 10, first interface 12, second interface
14, air injection enthalpy-increasing compressor 16, commutation component 18, flash vessel 20, orifice union 22 and the first pipeline 24, the of commutation component 18
One end connects with exhaust outlet 162, and the second end of commutation component 18 connects with gas returning port 164, the gas outlet 204 of flash vessel 20 and spray
Loophole 166 connects, and the liquid outlet 206 of flash vessel 20 connects with the entrance of first interface 12 and outdoor heat exchanger 10 respectively, flash distillation
The refrigerant inlet 202 of device 20 connects with one end of orifice union 22, and the other end of orifice union 22 connects with second interface 14, the
One end of one pipeline 24 connects with the outlet of outdoor heat exchanger 10, and the other end of the first pipeline 24 is located at orifice union 22 and second
Between interface 14, by the present invention in that the gaseous refrigerant flowed out from air injection enthalpy-increasing heat exchanger is straight with air injection enthalpy-increasing compressor 16
It connects from the intermediate injection mouth 166 of compressor and enters compressor to carry out Gas-supplying enthalpy-increasing compression, while increasing flash vessel 20 and throttling
Component 22, refrigerant circulation when dramatically increasing low-temperature heating operation, reaches extension low temperature in two pipes system air injection enthalpy-increasing outdoor unit
Heating operation range significantly improves heating capacity, and achievees the purpose that promoting high-temperature refrigeration ability reduces discharge superheat.
Furthermore increase by the first pipeline 24, so that can be achieved under refrigeration, heating, main refrigeration and four kinds of modes of main heating
The effect of air injection enthalpy-increasing.
Flash vessel 20 is the container that can accommodate refrigerant, and usually there are three interfaces: mixed for refrigerant air-liquid
Close refrigerant inlet 202, refrigerant gas outlet 204 and refrigerant liquid outlet 206 that object enters.Its working principle is that: it is saved from upstream
The gas-liquid mixture for the refrigerant that fluid element comes is flowed into from the refrigerant inlet 202 of flash vessel 20, due to volume sudden enlargement, largely
Refrigerant shwoot from liquid refrigerant comes out, and becomes the lower refrigerant gas of temperature, flows out from gas outlet 204, without
The liquid refrigerant of shwoot then flows out flash vessel 20 from liquid outlet 206.Appoint so that not carried secretly at the gas outlet 204 of flash vessel 20
What drop is not mixed with any gas at liquid outlet 206.
Since the gas outlet 204 of flash vessel 20 connects with jet port 166, in air injection enthalpy-increasing, it is ensured that outlet
The refrigerants of 204 discharge of mouth are gaseous coolant, effectively prevent air injection enthalpy-increasing compressor 16 and the problem of liquid hammer occur, ensure that
The service life of air injection enthalpy-increasing compressor 16.
Two pipes system air injection enthalpy-increasing outdoor unit is two pipes system structure, there is two connecting tubes, i.e. first interface between outer machine and interior machine
12 and second interface 14 for being connected with indoor unit, compared with three control multi-line systems in the related technology, the present invention is mentioned
The two pipes system heat-reclamation multi-compressors system structure of confession is simple, has saved copper pipe material, has reduced installation cost.
In addition, two pipes system air injection enthalpy-increasing outdoor unit provided by the invention is applied to two pipes system air injection enthalpy-increasing multi-line system,
And the multi-line system is heat-reclamation multi-compressors, and the meaning of recuperation of heat is exactly the heat of recycling refrigeration room discharge for heating
Room heating, specifically, system absorb heat from refrigeration room by indoor set heat exchanger, then pass through indoor set heat exchanger
The heat is completely or partially released and is used to heat to heating room, system is insufficient or remaining heat passes through outdoor unit heat exchanger again
It is drawn from environment.And for common heat pump multi-connected machine, it heats indoor unit institute's calorific requirement and absorbs heat all from outdoor unit heat exchanger
And power consumption.Therefore, common heat pump is compared, heat-reclamation multi-compressors have apparent energy-saving effect.
There are 4 kinds of operational modes for heat-reclamation multi-compressors: refrigeration, main refrigeration, main heating and heating.When the interior of all operations
When machine is all in refrigerating/heating mode, outdoor unit is run under refrigerating/heating mode；Freeze again when the indoor unit of operation is existing
When having heating and cooling load to be greater than heating load, outdoor unit will be run under main refrigeration mode；When the indoor unit of operation is existing
Refrigeration has heating and cooling load to be less than heating load again when, outdoor unit will be run under main heating mode.If operation refrigeration
The required flow of indoor unit and heating indoor unit is just equal, then system is with total heat recovery mode operation.
In one embodiment provided by the invention, it is preferable that the third end of commutation component 18 is switchably connected to room
4th end of the outlet of the entrance or outdoor heat exchanger 10 of external heat exchanger 10, commutation component 18 is switchably connected to second interface
14 or first interface 12.
In this embodiment, the third end of commutation component 18 is switchably connected to entrance or the outdoor of outdoor heat exchanger 10
4th end of the outlet of heat exchanger 10, commutation component 18 is switchably connected to second interface 14 or first interface 12, in two pipes
When air injection enthalpy-increasing multi-line system processed is refrigeration and main refrigeration mode, commutate the third end of component 18 and entering for outdoor heat exchanger 10
Mouth is connected, and the 4th end of commutation component 18 is connected with second interface 14；Two pipes system air injection enthalpy-increasing multi-line system be heating and
When main heating mode, commutation component 18 third end be connected with the outlet of outdoor heat exchanger 10, commutation component 18 the 4th end and
First interface 12 is connected, to realize the different flow directions of refrigerant.
In one embodiment provided by the invention, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the first solenoid valve
26, it is arranged between gas outlet 204 and jet port 166, the conducting direction of the first solenoid valve 26 is by gas outlet 204 to jet port
166 directions.
In this embodiment, two pipes system air injection enthalpy-increasing outdoor unit includes the first solenoid valve 26, and the energization of the first solenoid valve 26 is led
Power on/off closure, and when the first solenoid valve 26 is powered and is connected, the conducting direction of the first solenoid valve 26 be by gas outlet 204 to
166 direction of jet port only allows refrigerant to be connected from gas outlet 204 to the direction of jet port 166, avoids the occurrence of refrigerant return
Phenomenon.
In one embodiment provided by the invention, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the first check valve
28, it is arranged on the first pipeline 24, the conducting direction of the first check valve 28 is to be exported to orifice union by outdoor heat exchanger 10
22 directions.
In this embodiment, it by increasing by the first pipeline 24, is connected between the outlet of outdoor heat exchanger 10 and orifice union 22
Get up, and the first check valve 28 is set on the first pipeline 24, adds first between the outlet of outdoor heat exchanger 10 and orifice union 22
Check valve 28 prevents from collaborating between the outlet of outdoor heat exchanger 10 and orifice union 22 when heating, is only allowed in refrigeration and master
When refrigeration mode, orifice union 22 is flowed by the first check valve 28 by the refrigerant of the outlet outflow of outdoor heat exchanger 10, and
In heating and main heating mode, the first check valve 28 is closed, so that can not by the refrigerant of the outlet outflow of outdoor heat exchanger 10
Pass through the first pipeline 24.
In one embodiment provided by the invention, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: second one-way valve
30, first interface 12 is connected by second one-way valve 30 with liquid outlet 206, and the conducting direction of second one-way valve 30 is by liquid outlet
206 to the direction of first interface 12；Second interface 14 is connected by third check valve 32, third check valve 32 with orifice union 22,
The conducting direction of third check valve 32 is by second interface 14 to the direction of orifice union 22.
In this embodiment, two pipes system air injection enthalpy-increasing outdoor unit includes second one-way valve 30, the conducting of second one-way valve 30
Direction is by liquid outlet 206 to the direction of first interface 12, and one end of second one-way valve 30 is located at liquid outlet 206 and outdoor heat exchange
Between 10 entrance of device, the other end of second one-way valve 30 is connected with first interface 12.In refrigeration and main refrigeration mode, second
Check valve 30 is opened, so that the refrigerant flowed out by the liquid outlet 206 of flash vessel 20 flows to first interface by second one-way valve 30
12.And in heating and when main heating mode, second one-way valve 30 is closed, the refrigerant flowed out by the liquid outlet 206 of flash vessel 20 without
Method can only pass through 10 entrance of outdoor heat exchanger by second one-way valve 30.
Further, two pipes system air injection enthalpy-increasing outdoor unit includes third check valve 32, the conducting direction of third check valve 32
For by second interface 14 to the direction of orifice union 22.In heating and main heating mode, third check valve 32 is opened, by second
The refrigerant that interface 14 flows out flows to 22 direction of orifice union by third check valve 32.In refrigeration and main refrigeration mode, third
Check valve 32 is closed, and is only capable of flowing to orifice union 22 by the refrigerant that the first pipeline 24 flows out.
In one embodiment provided by the invention, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the 4th check valve
34, second interface 14 is connected by the 4th check valve 34 with the 4th end of commutation component 18, and the conducting direction of the 4th check valve 34 is
By second interface 14 to the direction at the 4th end of commutation component 18；5th check valve 36, the 5th check valve 36 is by first interface 12
Be connected with the 4th end of commutation component 18, the conducting direction of the 5th check valve 36 is is connect by the 4th end of commutation component 18 to first
The direction of mouth 12.
In this embodiment, two pipes system air injection enthalpy-increasing outdoor unit include the 4th check valve 34 and the 5th check valve 36, the 4th
Second interface 14 is connected by check valve 34 with the 4th end of commutation component 18, and the conducting direction of the 4th check valve 34 is by the
Two interfaces 14 to commutation component 18 the 4th end direction, the 5th check valve 36 by first interface 12 and commutation component 18 the 4th
End is connected, and the conducting direction of the 5th check valve 36 is the 4th end to the direction of first interface 12 by commutation component 18, is carrying out
When refrigeration and main refrigeration mode, the conducting of the 4th check valve 34, the 5th check valve 36 closure are carrying out heating and main heating mode
When, the conducting of the 5th check valve 36, the 4th check valve 34 closure.
In one embodiment provided by the invention, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the 6th check valve
38, the third end for the component 18 that commutates is connected by the 6th check valve 38 with the entrance of outdoor heat exchanger 10, and the 6th check valve 38 is led
Logical direction is third end to the direction of outdoor heat exchanger 10 by commutation component 18；7th check valve 40, the 7th check valve 40 will
The third end of commutation component 18 is connected with the outlet of outdoor heat exchanger 10, and the conducting direction of the 7th check valve 40 is by outdoor heat exchange
The direction at the third end for being exported to commutation component 18 of device 10.
In this embodiment, two pipes system air injection enthalpy-increasing outdoor unit includes: the 6th check valve 38 and the 7th check valve 40, and the 6th
Check valve 38 and the 5th check valve 36 are connected with the third end of commutation component 18, the 6th check valve 38 and the 7th check valve 40
The other end is then connected with the outlet of the entrance of outdoor heat exchanger 10 and outdoor heat exchanger 10 respectively, is carrying out refrigeration and main refrigeration mould
When formula, the conducting of the 6th check valve 38, the 7th check valve 40 closure 0 are carrying out heating and main the 7th check valve 40 of heating mode when 0
Conducting, the 6th check valve 38 closure.
In one embodiment provided by the invention, it is preferable that orifice union 22 includes at least one throttling being connected in series
Device 222 and at least one the 8th check valve 224, the conducting direction of the 8th check valve 224 are to be entered by second interface 14 to refrigerant
The direction of mouth 202.
In this embodiment, orifice union 22 include at least one throttling set 222 for being connected in series and at least one the 8th
Check valve 224, the conducting direction of the 8th check valve 224 are by subcooler to the direction of 10 entrance of outdoor heat exchanger, can be one
A throttling set 222 is connected the 8th check valve 224, or is connected multiple 8th check valves for a throttling set 222
224, one the 8th check valve 224 of multiple series connection of throttling sets 222, to guarantee the effect of reducing pressure by regulating flow, and in multilevel decompression
After better antihypertensive effect may be implemented.
In one embodiment provided by the invention, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the second pipeline,
Exhaust outlet 162 is connected with first interface 12；Second solenoid valve 42 is arranged on the second pipeline, the conducting of second solenoid valve 42
Direction is by exhaust outlet 162 to the direction of first interface 12.
In this embodiment, two pipes system air injection enthalpy-increasing outdoor unit includes the second pipeline and the second electricity being located on the second pipeline
Magnet valve 42, when carrying out refrigeration mode, second solenoid valve 42 is closed, and the refrigerant being discharged by exhaust outlet 162 all passes through commutation group
The third end of part 18 enters the entrance of outdoor heat exchanger 10；Main refrigeration mode is being carried out, second solenoid valve 42 is opened, by exhaust outlet
The refrigerant part of 162 discharges enters the entrance of outdoor heat exchanger 10 by the third end for the component 18 that commutates, and another part is by second
Solenoid valve 42 enters first interface 12, to guarantee that refrigeration and main two kinds of refrigeration may be implemented in two pipes system air injection enthalpy-increasing multi-line system
Mode.
In one embodiment provided by the invention, it is preferable that two pipes system air injection enthalpy-increasing outdoor unit includes: the 9th check valve
44, the entrance of outdoor heat exchanger 10 is connected by the 9th check valve 44 with liquid outlet 206, and the conducting direction of the 9th check valve 44 is served as reasons
Liquid outlet 206 to outdoor heat exchanger 10 entrance direction.
In this embodiment, two pipes system air injection enthalpy-increasing outdoor unit includes the 9th check valve 44, the conducting of the 9th check valve 44
Direction is by the direction of the entrance of liquid outlet 206 to outdoor heat exchanger 10.In refrigeration and main refrigeration mode, the 9th check valve 44
It closes, the refrigerant flowed out by the liquid outlet 206 of flash vessel 20 can not enter outdoor heat exchanger 10 by the 9th check valve 44
Entrance can only enter first interface 12 by 30 place pipeline of second one-way valve.In heating and main heating mode, the 9th is single
It is opened to valve 44, the refrigerant flowed out by the liquid outlet 206 of flash vessel 20 enters outdoor heat exchanger 10 by the 9th check valve 44
Entrance.
A kind of two pipes system air injection enthalpy-increasing multi-line system, two pipes system air injection enthalpy-increasing are provided according to an aspect of the present invention
Multi-line system includes the two pipes system air injection enthalpy-increasing outdoor unit such as above-mentioned any embodiment, and therefore, the two pipes system air injection enthalpy-increasing is more
On-line system has whole beneficial effects of the two pipes system air injection enthalpy-increasing outdoor unit such as above-mentioned any embodiment.
Two pipes system air injection enthalpy-increasing multi-line system includes refrigerant flow direction switching device 48, refrigerant flow direction switching device 48
It is shunted including gas-liquid separator 50 for gas-liquid two-phase cold-producing medium, plate heat exchanger is more for obtaining liquid refrigerant degree of supercooling
Group solenoid valve is for switching refrigerant flow direction.
As shown in figure 3, the gaseous coolant of high temperature and pressure comes out from air injection enthalpy-increasing compressor 16 by commutation component when refrigeration
18 and the 6th check valve 38 first pass through the condensation of outdoor heat exchanger 10, be condensed into high-pressure liquid refrigerant, a part passes through orifice union
22, reducing pressure by regulating flow enters flash vessel 20 at two-phase refrigerant, and gaseous coolant enters air injection enthalpy-increasing compressor by the first solenoid valve 26
16 jet port 166, another part liquid refrigerants reach first interface 12 (efferent duct) by second one-way valve 30 and enter refrigeration
Agent flows to 50 entrance of gas-liquid separator of switching device 48.
As shown in figure 4, the gas coolant of high temperature and pressure comes out from air injection enthalpy-increasing compressor 16, by passing through respectively when heating
It crosses second solenoid valve 42 and commutation component 18 and 36 two-way of the 5th check valve and passes through first interface 12 to high pressure valve, then from high pressure valve
(outer machine efferent duct) flows to 48 entrance of refrigerant flow direction switching device, into gas-liquid separator 50, from 50 gas side of gas-liquid separator
Outlet enters two pipes system air injection enthalpy-increasing indoor unit 46 from tracheae by heating solenoid valve, in 46 quilt of two pipes system air injection enthalpy-increasing indoor unit
After being condensed into high-pressure liquid refrigerant, interior machine electric expansion valve is flowed through, high-pressure two-phase refrigerant is become, flows through refrigerant flow direction switching dress
The restricting element (aperture maintains standard-sized sheet, reduces resistance to the greatest extent) for setting 48 returns to second interface 14 (outer machine input pipe) by low pressure valve
Into two pipes system air injection enthalpy-increasing outdoor unit, outer owner's orifice union 22 is first passed through after third check valve 32 and enters flash vessel 20
Entrance, refrigerant from liquid outlet 206, out after, a part of liquid refrigerants enter outdoor heat exchanger 10 heat absorption, then pass through commutation group
Part 18 returns to low-pressure tank, subsequently enters the gas returning port 164 of air injection enthalpy-increasing compressor 16；Another part gaseous coolant is from flash vessel
20 gas outlet 204 passes into the compression chamber that the first solenoid valve 26 enters air injection enthalpy-increasing compressor 16 after coming out.
As shown in figure 5, the gaseous coolant of high temperature and pressure, which comes out a part from air injection enthalpy-increasing compressor 16, to be passed through when main refrigeration
Commutation component 18 and the 6th check valve 38 first pass through the condensation of outdoor heat exchanger 10, the high-pressure liquid refrigerant being condensed into, a part warp
Orifice union 22 is crossed, reducing pressure by regulating flow enters flash vessel 20 at two-phase refrigerant, and gaseous coolant enters jet by the first solenoid valve 26
The jet port 166 of enthalpy-increasing compressor 16, another part liquid refrigerants reach first interface 12 by second one-way valve 30, and from spray
The another part high pressure gaseous refrigerant that gas enthalpy-increasing compressor 16 comes out Jing Guo second solenoid valve 42 is mixed into high temperature and pressure
Two-phase refrigerant enters 50 entrance of gas-liquid separator of refrigerant flow direction switching device 48.Gaseous coolant exports out from gas side to be flowed through
Heating solenoid valve, into the tracheae of the two pipes system air injection enthalpy-increasing indoor unit 46 of heating, into the two pipes system air injection enthalpy-increasing room of heating
Machine 46 condenses, and the second subcooler 54 that cooling medium distributor is returned to after 46 restricting element of two pipes system air injection enthalpy-increasing indoor unit enters
Mouthful, it is mixed with from liquid refrigerants of the liquid refrigerants that 50 liquid side outlet of gas-liquid separator comes out after the supercooling of the first subcooler 52
Afterwards, two pipes after the second subcooler 54 further supercooling, into the two pipes system air injection enthalpy-increasing indoor unit 46 of refrigeration, by refrigeration
In 46 evaporation endothermic of two pipes system air injection enthalpy-increasing indoor unit of refrigeration after 46 restricting element of air injection enthalpy-increasing indoor unit decompression processed, become low
The second interface 14 of two pipes system air injection enthalpy-increasing outdoor unit is returned to after pressure gaseous coolant through the solenoid valve that freezes.By the 4th check valve 34
Low-pressure tank ACC is returned to commutation component 18, is then return to the gas returning port 164 of air injection enthalpy-increasing compressor 16.
As shown in fig. 6, the gas coolant of high temperature and pressure comes out from air injection enthalpy-increasing compressor 16 when main heating, by respectively
Pass through first interface to high pressure valve, then from high pressure valve by second solenoid valve 42 and commutation component 18 and 36 two-way of the 5th check valve
12 flow to the entrance of refrigerant flow direction switching device 48, into gas-liquid separator 50.High-pressure gaseous refrigerant is from gas-liquid separator 50
Gas side outlet enters the two pipes system air injection enthalpy-increasing indoor unit 46 of heating, condensed high pressure liquid cooling by heating solenoid valve from tracheae
Matchmaker flows back to 54 entrance of the second subcooler of cooling medium distributor after 46 electric expansion valve of two pipes system air injection enthalpy-increasing indoor unit, from
Two subcoolers 54 become the two pipes system air injection enthalpy-increasing indoor unit that high-pressure liquid refrigerant enters refrigeration by refrigeration check valve after coming out
46, become middle pressure two-phase refrigerant after throttling by electric expansion valve and enter 46 evaporation endothermic of two pipes system air injection enthalpy-increasing indoor unit, becomes
Converge in low-voltage tube with the two phase refrigerant of middle pressure flowed through from cooling medium distributor restricting element at after middle pressure gaseous coolant, passes through
Second interface 14 returns to two pipes system air injection enthalpy-increasing outdoor unit.By third check valve 32 using 22 reducing pressure by regulating flow of orifice union,
Into 20 entrance of flash vessel, wherein liquid refrigerants is flowed out from liquid outlet 206, is entered outdoor heat exchanger 10 through the 9th check valve 44 and is steamed
Hair heat absorption passes through commutation component 18 and enters low-pressure tank, is then return to the gas returning port 164 of air injection enthalpy-increasing compressor 16.Gaseous state is cold
Matchmaker then enters the jet port 166 of air injection enthalpy-increasing compressor 16 from the outflow of the gas outlet of flash vessel 20 204 by the first solenoid valve 26.
As shown in fig. 7, two pipes system air injection enthalpy-increasing multi-line system is because increase enthalpy difference (h when refrigerationA-J> hA-J’), it can
To realize identical ability with smaller refrigerant circulation, therefore 16 frequency of air injection enthalpy-increasing compressor can be lower, and acting is less,
To improve efficiency.In addition because two pipes system air injection enthalpy-increasing multi-line system reduces discharge superheat (SH < SH '), high temperature system
When cold, spray enthalpy can increase refrigerant circulation and improve refrigerating capacity.
In the description of this specification, the orientation or positional relationship of the instructions such as term " on ", "lower" is based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention；
Term " connection ", " installation ", " fixation " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, being also possible to can
Dismantling connection, or be integrally connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of two pipes system air injection enthalpy-increasing outdoor unit, which is characterized in that the two pipes system air injection enthalpy-increasing outdoor unit includes:
Outdoor heat exchanger, first interface and second interface；
Air injection enthalpy-increasing compressor, including exhaust outlet, gas returning port and jet port；
Commutate component, including first end, to the 4th end, the first end of the commutation component connects with the exhaust outlet, the commutation
The second end of component connects with the gas returning port；
Flash vessel, including refrigerant inlet, gas outlet and liquid outlet, the gas outlet connect with the jet port, the liquid outlet
Connect respectively with the entrance of the first interface and the outdoor heat exchanger；
Orifice union, one end of the orifice union connect with the refrigerant inlet, and the other end connects with the second interface；
First pipeline, one end connect with the outlet of the outdoor heat exchanger, and the other end is located at the orifice union and described the
Between two interfaces.
2. two pipes system air injection enthalpy-increasing outdoor unit according to claim 1, which is characterized in that
The third end of the commutation component is switchably connected to the entrance or the outdoor heat exchanger of the outdoor heat exchanger
4th end of outlet, the commutation component is switchably connected to the second interface or the first interface.
3. two pipes system air injection enthalpy-increasing outdoor unit according to claim 1, which is characterized in that two pipes system air injection enthalpy-increasing room
Outer machine includes:
First solenoid valve is arranged between the gas outlet and the jet port, and the conducting direction of first solenoid valve is served as reasons
The gas outlet to the jet port direction.
4. two pipes system air injection enthalpy-increasing outdoor unit according to claim 1, which is characterized in that two pipes system air injection enthalpy-increasing room
Outer machine includes:
First check valve is arranged on first pipeline, and the conducting direction of first check valve is by the outdoor heat exchange
Device is exported to the orifice union direction.
5. two pipes system air injection enthalpy-increasing outdoor unit according to any one of claim 1 to 4, which is characterized in that two pipe
Air injection enthalpy-increasing outdoor unit processed includes:
The first interface is connected by second one-way valve, the second one-way valve with the liquid outlet, the second one-way valve
Conducting direction is by the liquid outlet to the direction of the first interface；
The second interface is connected by third check valve, the third check valve with the orifice union, the third check valve
Conducting direction be by the second interface to the direction of the orifice union.
6. two pipes system air injection enthalpy-increasing outdoor unit according to any one of claim 1 to 4, which is characterized in that two pipe
Air injection enthalpy-increasing outdoor unit processed includes:
The second interface is connected by the 4th check valve, the 4th check valve with the 4th end of the commutation component, and described the
The conducting direction of four check valves is the direction by the second interface to the 4th end of the commutation component；
The first interface is connected by the 5th check valve, the 5th check valve with the 4th end of the commutation component, and described the
The conducting direction of five check valves is by the 4th end to the direction of the first interface of the commutation component.
7. two pipes system air injection enthalpy-increasing outdoor unit according to any one of claim 1 to 4, which is characterized in that two pipe
Air injection enthalpy-increasing outdoor unit processed includes:
6th check valve, the 6th check valve by it is described commutation component third end and the entrance phase of the outdoor heat exchanger
Even, the conducting direction of the 6th check valve is by third end to the direction of the outdoor heat exchanger of the commutation component；
7th check valve, the 7th check valve by it is described commutation component third end and the outlet phase of the outdoor heat exchanger
Even, the conducting direction of the 7th check valve is by the side at the third end for being exported to the commutation component of the outdoor heat exchanger
To.
8. two pipes system air injection enthalpy-increasing outdoor unit according to any one of claim 1 to 4, which is characterized in that
The orifice union includes at least one throttling set and at least one the 8th check valve being connected in series, and the described 8th is unidirectional
The conducting direction of valve is by the second interface to the direction of the refrigerant inlet.
9. two pipes system air injection enthalpy-increasing outdoor unit according to any one of claim 1 to 4, which is characterized in that two pipe
Air injection enthalpy-increasing outdoor unit processed includes:
The exhaust outlet is connected by the second pipeline with the first interface；
Second solenoid valve is arranged on second pipeline, the conducting direction of the second solenoid valve be by the exhaust outlet extremely
The direction of the first interface.
10. two pipes system air injection enthalpy-increasing outdoor unit according to any one of claim 1 to 4, which is characterized in that two pipe
Air injection enthalpy-increasing outdoor unit processed includes:
The entrance of the outdoor heat exchanger is connected by the 9th check valve, the 9th check valve with the liquid outlet, and the described 9th
The conducting direction of check valve is by the direction of the entrance of the liquid outlet to the outdoor heat exchanger.
11. a kind of two pipes system air injection enthalpy-increasing multi-line system, which is characterized in that the two pipes system air injection enthalpy-increasing multi-line system packet
Include the two pipes system air injection enthalpy-increasing outdoor unit as described in any one of claims 1 to 10.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811227632.6A CN109386983B (en) | 2018-10-22 | 2018-10-22 | Two-pipe jet enthalpy-increasing outdoor unit and multi-split system |
| CA3065395A CA3065395A1 (en) | 2018-10-22 | 2019-06-03 | Two-pipe enhanced-vapor-injection outdoor unit and multi-split system |
| PCT/CN2019/089858 WO2020082739A1 (en) | 2018-10-22 | 2019-06-03 | Two-pipe system gas-injection enthalpy-increasing outdoor unit and multi-split system |
| US16/619,599 US20200173696A1 (en) | 2018-10-22 | 2019-06-03 | Two-pipe enhanced-vapor-injection outdoor unit and multi-split system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811227632.6A CN109386983B (en) | 2018-10-22 | 2018-10-22 | Two-pipe jet enthalpy-increasing outdoor unit and multi-split system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109386983A true CN109386983A (en) | 2019-02-26 |
| CN109386983B CN109386983B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811227632.6A Active CN109386983B (en) | 2018-10-22 | 2018-10-22 | Two-pipe jet enthalpy-increasing outdoor unit and multi-split system |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20200173696A1 (en) |
| CN (1) | CN109386983B (en) |
| WO (1) | WO2020082739A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020082739A1 (en) * | 2018-10-22 | 2020-04-30 | 合肥美的暖通设备有限公司 | Two-pipe system gas-injection enthalpy-increasing outdoor unit and multi-split system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11371760B2 (en) * | 2018-07-27 | 2022-06-28 | Mitsubishi Electric Corporation | Refrigeration cycle apparatus |
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| CN101165438A (en) * | 2006-10-21 | 2008-04-23 | 珠海格力电器股份有限公司 | Super low temperature heat pump air conditioner system |
| CN102135341A (en) * | 2010-01-25 | 2011-07-27 | 上海日立电器有限公司 | Capacity-adjustable heat pump air-conditioning system with refrigerant release and enthalpy-adding loops |
| CN103363707A (en) * | 2012-04-09 | 2013-10-23 | 珠海格力电器股份有限公司 | Heat pump type air conditioning device |
| CN107144123A (en) * | 2017-07-18 | 2017-09-08 | 合肥万都云雅制冷科技股份有限公司 | A kind of heat pump dryer system |
| JP2017161193A (en) * | 2016-03-11 | 2017-09-14 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386983B (en) * | 2018-10-22 | 2020-07-28 | 广东美的暖通设备有限公司 | Two-pipe jet enthalpy-increasing outdoor unit and multi-split system |
-
2018
- 2018-10-22 CN CN201811227632.6A patent/CN109386983B/en active Active
-
2019
- 2019-06-03 US US16/619,599 patent/US20200173696A1/en not_active Abandoned
- 2019-06-03 WO PCT/CN2019/089858 patent/WO2020082739A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165438A (en) * | 2006-10-21 | 2008-04-23 | 珠海格力电器股份有限公司 | Super low temperature heat pump air conditioner system |
| CN102135341A (en) * | 2010-01-25 | 2011-07-27 | 上海日立电器有限公司 | Capacity-adjustable heat pump air-conditioning system with refrigerant release and enthalpy-adding loops |
| CN103363707A (en) * | 2012-04-09 | 2013-10-23 | 珠海格力电器股份有限公司 | Heat pump type air conditioning device |
| JP2017161193A (en) * | 2016-03-11 | 2017-09-14 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN107144123A (en) * | 2017-07-18 | 2017-09-08 | 合肥万都云雅制冷科技股份有限公司 | A kind of heat pump dryer system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020082739A1 (en) * | 2018-10-22 | 2020-04-30 | 合肥美的暖通设备有限公司 | Two-pipe system gas-injection enthalpy-increasing outdoor unit and multi-split system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109386983B (en) | 2020-07-28 |
| WO2020082739A1 (en) | 2020-04-30 |
| US20200173696A1 (en) | 2020-06-04 |
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