CN109442793A - A kind of air-conditioning defrosting system and air-conditioning system - Google Patents
A kind of air-conditioning defrosting system and air-conditioning system Download PDFInfo
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- CN109442793A CN109442793A CN201811392496.6A CN201811392496A CN109442793A CN 109442793 A CN109442793 A CN 109442793A CN 201811392496 A CN201811392496 A CN 201811392496A CN 109442793 A CN109442793 A CN 109442793A
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- 238000010257 thawing Methods 0.000 title claims abstract description 118
- 238000004378 air conditioning Methods 0.000 title claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 151
- 239000012530 fluid Substances 0.000 claims abstract description 46
- 239000003507 refrigerant Substances 0.000 claims description 107
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B41/40—Fluid line 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
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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
A kind of air-conditioning defrosting system and air-conditioning system, first outdoor heat exchanger one end connects a valve port of the first triple valve, the a valve port of other end connection third triple valve, the b valve port of first triple valve is connected to compressor, the C valve port of the c valve port connection four-way reversing valve of first triple valve, the defrosting leakage fluid dram of the b valve port connection liquid storage unit of third triple valve, the c valve port of third triple valve is connected to outdoor electrical expansion valve, second outdoor heat exchanger one end connects a valve port of the second triple valve, the other end connects a valve port of the 4th triple valve, the b valve port of second triple valve is connected to compressor, the C valve port of the c valve port connection four-way reversing valve of second triple valve, the defrosting leakage fluid dram of the b valve port connection liquid storage unit of 4th triple valve, the c valve port of 4th triple valve is connected to outdoor electrical expansion valve, liquid storage unit includes first, second mouthful and defrosting Leakage fluid dram, first are connected to the c valve port of the second triple valve and the c valve port of the 4th triple valve via outdoor electrical expansion valve.
Description
Technical field
The invention belongs to air conditioner technical fields, and in particular to a kind of air-conditioning defrosting system and air-conditioning system.
Background technique
When air-conditioning winter heating runs, outdoor heat exchanger frosting influences heat transfer effect.At present using four-way valve commutation defrosting
Mode, this Defrost mode have the shortcomings that generate noise, reduce indoor heating effect.
Patent CN201520063734.4 invent it is a kind of can continuous heating defrost air conditioner, the outdoor heat exchange of the air conditioner
Device includes two groups of outdoor heat exchanger units, and outdoor heat exchanger unit distinguishes serial electronic expansion valve, when heating mode, is changed from interior
The high pressure liquid refrigerant and enter jointly separately from the high pressure defrosting liquid refrigerant that one group of outdoor heat exchanger flows out that hot device flows out
One group of outdoor heat exchanger, indoors in the case of external heat exchanger, electric expansion valve normal configuration, indoor heat exchanger and one group of outdoor are melted
Liquid refrigerant in white heat exchanger unit cannot exclude in time, and excess liquid refrigerant enters another group of outdoor heat exchanger list
Member has the disadvantages that 1, indoor heat exchanger hydrops, heat transfer effect are deteriorated, and condensing pressure is excessively high；2, defrosting outdoor heat exchanger list
Defrosting liquid in member cannot be discharged in time, and defrosting effect is poor；3, the liquid refrigerant excess that not defrosting outdoor heat exchanger is fed,
Suction temperature is caused to reduce, compressor returns liquid.
Based on above-mentioned technical problem, there has been no relevant solutions；Therefore there is an urgent need to seek effective scheme to solve
The above problem.
Summary of the invention
In place of solving above-mentioned the deficiencies in the prior art, the present invention provides a kind of air-conditioning defrosting system and air-conditioning system,
By arranging liquid storage unit, fluid reservoir, outdoor electrical expansion valve and fluid reservoir are added in outdoor electrical expansion valve and refrigeration system
The high-temperature gas of series connection, compressor discharge enters defrosting outdoor heat exchanger, after defrosting in liquid refrigerant and indoor heat exchanger
Liquid refrigerant flows into liquid storage unit, and system passes through outdoor electrical expansion valve according to actual needs and gives outdoor heat exchanger feed flow, more
Extraction raffinate cryogen is stored in liquid storage unit.Indoor heat exchanger liquid can be discharged in the present invention in time, reduce condensing pressure, mention
Heating and defrosting effect are risen, outdoor heat exchanger feed flow excess is not will cause, compressor is avoided to return liquid.
The purpose of the present invention is be achieved by the following technical programs.
A kind of air-conditioning defrosting system includes,
Compressor,
Four-way reversing valve comprising D valve port, E valve port, S valve port and C valve port, the S valve port are connected to compressor,
First to fourth triple valve respectively includes a valve port, b valve port and c valve port,
First outdoor heat exchanger, one end connect a valve port of the first triple valve, and the other end connects a valve of third triple valve
Mouthful, wherein the b valve port of the first triple valve is connected to compressor, and the c valve port of the first triple valve is connected to the C valve port of four-way reversing valve, the
The defrosting leakage fluid dram of the b valve port connection liquid storage unit of three triple valves, the c valve port of third triple valve are connected to outdoor electrical expansion valve,
First temperature sensor is located in the middle part of the pipeline of the first outdoor heat exchanger to measure the first temperature,
Second outdoor heat exchanger, one end connect a valve port of the second triple valve, and the other end connects a valve of the 4th triple valve
Mouthful, wherein the b valve port of the second triple valve is connected to compressor, and the c valve port of the second triple valve is connected to the C valve port of four-way reversing valve, the
The defrosting leakage fluid dram of the b valve port connection liquid storage unit of four triple valves, the c valve port of the 4th triple valve are connected to outdoor electrical expansion valve,
Second temperature sensor is located in the middle part of the pipeline of the second outdoor heat exchanger to measure second temperature,
Liquid storage unit comprising first, second mouthful and defrosting leakage fluid dram, wherein the first is via outdoor electrical
Expansion valve is connected to the c valve port of the second triple valve and the c valve port of the 4th triple valve,
First indoor heat exchanger, one end connect the E valve port of four-way reversing valve, and the other end is expanded via the first indoor electronic
Valve connects second mouthful,
Second indoor heat exchanger, one end connect the E valve port of four-way reversing valve, and the other end is via electronic expansion in second Room
Valve connects second mouthful.
In the air-conditioning defrosting system, first to fourth triple valve is two-position three way magnetic valve, b valve port and c valve port
It is not connected to, when energization, a valve port is connected to b valve port, and a valve port is not connected to c valve port, and when power-off, a valve port is connected to c valve port, a valve
Mouth is not connected to b valve port.
In the air-conditioning defrosting system, compressor via oil eliminator connection D valve port, the first triple valve b valve port and
The b valve port of second triple valve.
In the air-conditioning defrosting system, compressor is connected to S valve port via gas-liquid separator.
In the air-conditioning defrosting system, when the first outdoor heat exchanger defrosting, the first triple valve and third triple valve are powered,
The first flow path of the high-temperature high-pressure refrigerant gas of compressor discharge enters the first outdoor heat exchanger through the b valve port of the first triple valve
High pressure medium temperature liquid refrigerant, b valve of the high pressure medium temperature liquid refrigerant through third triple valve are converted by absorbing heat defrosting
Mouth enters in liquid storage unit via defrosting leakage fluid dram, and the second flow path of the high-temperature high-pressure refrigerant gas of compressor discharge enters D
Valve port, which enters the first and second indoor heat exchangers after flowing out via E valve port, becomes medium temperature high pressure liquid refrigerant through heat exchange, in
Warm high pressure liquid refrigerant through the first and second indoor electronic expansion valves via second mouthful enter liquid storage unit, the second triple valve and
4th triple valve is powered, and the refrigerant of liquid storage unit outflow becomes low temperature and low pressure liquid refrigeration after the throttling of outdoor electrical expansion valve
Agent, into the c valve port of the 4th triple valve after from its a valve port outflow enter the second outdoor heat exchanger, in the second outdoor heat exchanger
Absorbing heat becomes low temperature low pressure gas refrigerant, into a valve port of the second triple valve, flows out from its c valve port, into C valve port
It is flowed out afterwards from S valve port and returns to compressor.
In the air-conditioning defrosting system, when the second outdoor heat exchanger defrosting, the second triple valve and the 4th triple valve are powered,
The third flow path of the high-temperature high-pressure refrigerant gas of compressor discharge enters the second outdoor heat exchanger through the b valve port of the second triple valve
High pressure medium temperature liquid refrigerant, b valve of the high pressure medium temperature liquid refrigerant through the 4th triple valve are converted by absorbing heat defrosting
Mouth enters in liquid storage unit via defrosting leakage fluid dram, and the third flow path of the high-temperature high-pressure refrigerant gas of compressor discharge enters D
Valve port, which enters the first and second indoor heat exchangers after flowing out via E valve port, becomes medium temperature high pressure liquid refrigerant through heat exchange, in
Warm high pressure liquid refrigerant through the first and second indoor electronic expansion valves via second mouthful enter liquid storage unit, the first triple valve and
Third triple valve is powered, and the refrigerant of liquid storage unit outflow becomes low temperature and low pressure liquid refrigeration after the throttling of outdoor electrical expansion valve
Agent, into the c valve port of third triple valve after from its a valve port outflow enter the first outdoor heat exchanger, in the first outdoor heat exchanger
Absorbing heat becomes low temperature low pressure gas refrigerant, into a valve port of the first triple valve, flows out from its c valve port, into C valve port
It is flowed out afterwards from S valve port and returns to compressor.
In the air-conditioning defrosting system, the high-temperature high-pressure refrigerant gas of compressor discharge enters gs-oil separator, from
The D valve port for entering four-way reversing valve after gs-oil separator outflow enters the first and second indoor heat exchangers after the outflow of E valve port,
Become medium temperature high pressure liquid refrigerant through heat exchange, enter in liquid storage unit through the first and second indoor electronic expansion valves respectively,
Become low temperature low pressure liquid refrigerants after the throttling of outdoor electrical expansion valve from the refrigerant of liquid storage unit trickle, respectively into
The c valve port for entering third and third three-way magnetic valve respectively enters the first and second outdoor heat exchangers from the outflow of its a valve port and is inhaled
Receiving heat becomes low temperature low pressure gas refrigerant, enters a valve port of the first and second triple valves and flows out from c valve port, into C
Valve port enters gas-liquid separator after the outflow of S valve port, is absorbed after liquid/gas separator outflow by compressor.
In the air-conditioning defrosting system, the high-temperature high-pressure refrigerant gas of compressor discharge enters gs-oil separator, from
The D valve port for entering four-way reversing valve after gs-oil separator outflow enters the c valve of the first and second triple valves after the outflow of C valve port
Mouthful, enter the first and second outdoor heat exchangers after the outflow of a valve port respectively, become medium temperature high pressure liquid refrigerant through heat exchange,
Into a valve port of the third and fourth triple valve, enter liquid storage unit through outdoor electrical expansion valve after the outflow of its c valve port, from storage
The liquid refrigerant of liquid unit outflow becomes low temperature low pressure liquid refrigerants after the throttling of the first and second indoor electronic expansion valves,
It respectively enters the first and second indoor heat exchangers, and heat absorption evaporation becomes low temperature low pressure gas refrigerant in heat exchanger indoors,
Into the E valve port of four-way reversing valve, enter gas-liquid separator after the outflow of the S valve port of four-way reversing valve, from gas-liquid separator stream
It is absorbed after out by compressor.
In the air-conditioning defrosting system, the liquid storage unit is liquid storage unit, is equipped with agitating unit in liquid storage unit.
According to another aspect of the present invention, a kind of air-conditioning system includes the air-conditioning defrosting system.
The invention has the following advantages that
Surplus liquid is stored using liquid storage unit, system to outdoor heat exchanger feed flow, not will cause room according to actual needs
External heat exchanger feed flow is excessive, and compressor is avoided to return liquid；
Liquid refrigerant in discharge indoor heat exchanger in time, improves heat transfer effect, condensing pressure is made to be in normal range (NR)；
Liquid refrigerant after defrosting is discharged to liquid storage unit in time, improves defrosting effect；
Defrosting and refrigeration simultaneously carry out, raising air conditioning comfortableness；
It is introduced directly into compressor air-discharging and carries out defrosting, commutate without four-way valve, reduce noise.
The above description is only an overview of the technical scheme of the present invention, in order to make technological means of the invention clearer
Understand, reach the degree that those skilled in the art can be implemented in accordance with the contents of the specification, and in order to allow the present invention
Above and other objects, features and advantages can be more clearly understood, illustrated below with a specific embodiment of the invention
Explanation.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Below with reference to attached drawing, the invention will be further described:
Fig. 1 is the structural schematic diagram according to the air-conditioning defrosting system of one embodiment of the invention；
Fig. 2 is the defrosting flow diagram according to the air-conditioning defrosting system of one embodiment of the invention；
Fig. 3 is the defrosting flow diagram according to the air-conditioning defrosting system of one embodiment of the invention；
Fig. 4 is the heating flow diagram according to the air-conditioning defrosting system of one embodiment of the invention；
Fig. 5 is the cooling flow schematic diagram according to the air-conditioning defrosting system of one embodiment of the invention.
In figure: 1, compressor；2, oil eliminator；3, four-way reversing valve；4, the first triple valve；5, the second triple valve；6,
Three triple valves；7, the 4th triple valve；8, the first outdoor heat exchanger；9, the second outdoor heat exchanger；10, outdoor electrical expansion valve；11,
Liquid storage unit；12, the first indoor electronic expansion valve；13, electric expansion valve in second Room；14, the first indoor heat exchanger；15,
Two indoor heat exchangers；16, gas-liquid separator；17, first；18, second mouthful；19, defrosting leakage fluid dram.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to better understand, Fig. 1 is the structural schematic diagram of electric motor mounting structure according to an embodiment of the invention, such as
Shown in Fig. 1, a kind of air-conditioning defrosting system includes,
Compressor 1,
Four-way reversing valve 3 comprising D valve port, E valve port, S valve port and C valve port, the S valve port are connected to compressor 1,
First to fourth triple valve 7 respectively includes a valve port, b valve port and c valve port,
First outdoor heat exchanger 8, one end connect a valve port of the first triple valve 4, and the other end connects a of third triple valve 6
Valve port, wherein the b valve port of the first triple valve 4 is connected to compressor 1, the C of the c valve port connection four-way reversing valve 3 of the first triple valve 4
Valve port, the defrosting leakage fluid dram 19 of the b valve port connection liquid storage unit 11 of third triple valve 6, the c valve port communication chamber of third triple valve 6
Exoelectron expansion valve 10,
First temperature sensor is located in the middle part of the pipeline of the first outdoor heat exchanger 8 to measure the first temperature,
Second outdoor heat exchanger 9, one end connect a valve port of the second triple valve 5, and the other end connects a of the 4th triple valve 7
Valve port, wherein the b valve port of the second triple valve 5 is connected to compressor 1, the C of the c valve port connection four-way reversing valve 3 of the second triple valve 5
Valve port, the defrosting leakage fluid dram 19 of the b valve port connection liquid storage unit 11 of the 4th triple valve 7, the c valve port communication chamber of the 4th triple valve 7
Exoelectron expansion valve 10,
Second temperature sensor is located in the middle part of the pipeline of the second outdoor heat exchanger 9 to measure second temperature,
Liquid storage unit 11 comprising 17, second mouthful 18 of first and defrosting leakage fluid dram 19, wherein the first 17 passes through
The c valve port of the second triple valve 5 and the c valve port of the 4th triple valve 7 are connected to by outdoor electrical expansion valve 10,
First indoor heat exchanger 14, one end connect the E valve port of four-way reversing valve 3, and the other end is via the first indoor electronic
Expansion valve 12 connects second mouthful 18,
Second indoor heat exchanger 15, one end connect the E valve port of four-way reversing valve 3, and the other end is via the second indoor electronic
Expansion valve 13 connects second mouthful 18.
In the air-conditioning defrosting system preferred embodiment, first to fourth triple valve 7 is two-position three way magnetic valve, b
Valve port is not connected to c valve port, and when energization, a valve port is connected to b valve port, and a valve port is not connected to c valve port, when power-off, a valve port and c
Valve port connection, a valve port are not connected to b valve port.
In the air-conditioning defrosting system preferred embodiment, compressor 1 is connected to D valve port, the first threeway via oil eliminator 2
The b valve port of the b valve port of valve 4 and the second triple valve 5.
In the air-conditioning defrosting system preferred embodiment, compressor 1 is connected to S valve port via gas-liquid separator 16.
In the air-conditioning defrosting system preferred embodiment, when the first 8 defrosting of outdoor heat exchanger, the first triple valve 4 and
Three triple valves 6 be powered, compressor 1 be discharged high-temperature high-pressure refrigerant gas first flow path through the b valve port of the first triple valve 4 into
Enter the first outdoor heat exchanger 8 and is converted into high pressure medium temperature liquid refrigerant, high pressure medium temperature liquid refrigerant by absorbing heat defrosting
B valve port through third triple valve 6 enters in liquid storage unit 11 via defrosting leakage fluid dram 19, the high temperature and pressure system that compressor 1 is discharged
The second flow path of refrigerant gas, which enters after D valve port is flowed out via E valve port, enters the first and second indoor heat exchangers 15 through heat exchange
Become medium temperature high pressure liquid refrigerant, medium temperature high pressure liquid refrigerant is through the first and second indoor electronic expansion valves 13 via second
Mouth 18 enters liquid storage unit 11, and the second triple valve 5 and the 4th triple valve 7 are powered, and the refrigerant that liquid storage unit 11 flows out is through outdoor
Electric expansion valve 10 becomes low temperature low pressure liquid refrigerants after throttling, into the c valve port of the 4th triple valve 7 after from its a valve port stream
Enter the second outdoor heat exchanger 9 out, heat is absorbed in the second outdoor heat exchanger 9 becomes low temperature low pressure gas refrigerant, enters
The a valve port of second triple valve 5, from its c valve port flow out, into C valve port after from S valve port flow out return compressor 1.
In the air-conditioning defrosting system preferred embodiment, when the second 9 defrosting of outdoor heat exchanger, the second triple valve 5 and
Four triple valves 7 be powered, compressor 1 be discharged high-temperature high-pressure refrigerant gas third flow path through the b valve port of the second triple valve 5 into
Enter the second outdoor heat exchanger 9 and is converted into high pressure medium temperature liquid refrigerant, high pressure medium temperature liquid refrigerant by absorbing heat defrosting
B valve port through the 4th triple valve 7 enters in liquid storage unit 11 via defrosting leakage fluid dram 19, the high temperature and pressure system that compressor 1 is discharged
The third flow path of refrigerant gas, which enters after D valve port is flowed out via E valve port, enters the first and second indoor heat exchangers 15 through heat exchange
Become medium temperature high pressure liquid refrigerant, medium temperature high pressure liquid refrigerant is through the first and second indoor electronic expansion valves 13 via second
Mouth 18 enters liquid storage unit 11, and the first triple valve 4 and third triple valve 6 are powered, and the refrigerant that liquid storage unit 11 flows out is through outdoor
Electric expansion valve 10 becomes low temperature low pressure liquid refrigerants after throttling, into the c valve port of third triple valve 6 after from its a valve port stream
Enter the first outdoor heat exchanger 8 out, heat is absorbed in the first outdoor heat exchanger 8 becomes low temperature low pressure gas refrigerant, enters
The a valve port of first triple valve 4, from its c valve port flow out, into C valve port after from S valve port flow out return compressor 1.
In the air-conditioning defrosting system preferred embodiment, the high-temperature high-pressure refrigerant gas that compressor 1 is discharged enters oil
Gas separating device enters the D valve port of four-way reversing valve 3 after gs-oil separator outflow, enters first and second after the outflow of E valve port
Indoor heat exchanger 15 becomes medium temperature high pressure liquid refrigerant through heat exchange, respectively through the first and second indoor electronic expansion valves 13
Into in liquid storage unit 11, become low temperature after the throttling of outdoor electrical expansion valve 10 from the refrigerant of 11 trickle of liquid storage unit
Low pressure liquid refrigerant respectively enters the c valve port of third and third three-way magnetic valve, respectively enters the from the outflow of its a valve port
One and second outdoor heat exchanger 9 be absorbed heat and become low temperature low pressure gas refrigerant, enter the first and second triple valves 5
It a valve port and is flowed out from c valve port, into C valve port, enters gas-liquid separator 16 after the outflow of S valve port, from quilt after liquid/gas separator outflow
Compressor 11 absorbs.
In the air-conditioning defrosting system preferred embodiment, the high-temperature high-pressure refrigerant gas that compressor 1 is discharged enters oil
Gas separating device enters the D valve port of four-way reversing valve 3 after gs-oil separator outflow, enters first and second after the outflow of C valve port
The c valve port of triple valve 5 enters the first and second outdoor heat exchangers 9 after the outflow of a valve port respectively, becomes medium temperature height through heat exchange
Hydraulic fluid cryogen, into a valve port of the third and fourth triple valve 7, after the outflow of its c valve port through outdoor electrical expansion valve 10 into
Enter liquid storage unit 11, the liquid refrigerant flowed out from liquid storage unit 11 becomes after the throttling of the first and second indoor electronic expansion valves 13
At low temperature low pressure liquid refrigerants, the first and second indoor heat exchangers 15 are respectively enterd, evaporation of absorbing heat in heat exchanger indoors
Become low temperature low pressure gas refrigerant, into the E valve port of four-way reversing valve 3, enters after the outflow of the S valve port of four-way reversing valve 3
Gas-liquid separator 16 is absorbed after the outflow of gas-liquid separator 16 by compressor 1.
In the air-conditioning defrosting system preferred embodiment, the liquid storage unit 11 is fluid reservoir, is equipped with and stirs in fluid reservoir
Mix unit.
For a further understanding of the present invention, in one embodiment, a kind of two groups of outdoor heat exchangers hot gas defrosting system in turn
System, including the compressor 1, gs-oil separator 2, four-way reversing valve 3, three-way magnetic valve 4,5,6,7, outdoor heat exchanger 8,9, room
Exoelectron expansion valve 10, fluid reservoir 11, gas-liquid separator 16, multiple groups indoor heat exchanger and corresponding indoor electronic expansion valve.
In one embodiment, a kind of two groups of outdoor heat exchangers defrosting system by superheated vapour, including two groups of outdoor heat exchangers in turn
8,9, defrosting temperature sensor is arranged at discharge interval certain distance arranged side by side, outdoor heat exchanger 8,9 pipelines middle part, and defrosting temperature passes
The temperature that sensor detects is lower than certain value, and corresponding outdoor heat exchanger reaches defrosting condition, when outdoor heat exchanger 8,9 reaches simultaneously
When defrosting condition, the first defrosting of outdoor heat exchanger 8, after 8 defrosting of outdoor heat exchanger, outdoor heat exchanger 9 starts defrosting.Work as outdoor
When only one group of outdoor heat exchanger reaches defrosting condition in heat exchanger 8,9, the corresponding direct defrosting of outdoor heat exchanger.
In one embodiment, Fig. 2 is to be illustrated according to the defrosting process of the air-conditioning defrosting system of one embodiment of the invention
Figure, in air-conditioning defrosting system, as the liquid storage unit 11 of fluid reservoir includes such as first 1717 of inlet (or liquid outlet), such as goes out
Second mouthful 1818 of liquid mouth (or inlet), defrosting leakage fluid dram 19.Three-way magnetic valve 4,5,6,7 is two-position three way magnetic valve, packet
A valve port, b valve port and c valve port are included, b valve port is not connected to c valve port, and when energization, a valve port is connected to b valve port, a valve port and c valve port
It is not connected to, when power-off, a valve port is connected to c valve port, and a valve port is not connected to b valve port.The commutation of four-way described in heating and defrosting state
Valve 3 is powered, and D valve port is connected to E valve port, and S valve port is connected to C valve port, and refrigerating state four-way reversing valve 3 powers off, D valve port and C valve
Mouth connection, E valve port are connected to S valve port.
In one embodiment, in air-conditioning defrosting system, outdoor heat exchanger 8,9 is not up to the i.e. normal heating shape of defrosting condition
State and refrigerating state, three-way magnetic valve 4,5,6,7 power off.When 8 defrosting of outdoor heat exchanger, three-way magnetic valve 4,6 is powered, and three are powered
Magnet valve 5,7 powers off；When 9 defrosting of outdoor heat exchanger, three-way magnetic valve 5,7 is powered, and three-way magnetic valve 4,6 powers off.
In one embodiment, in air-conditioning defrosting system, a kind of two groups of outdoor heat exchangers defrosting system by superheated vapour in turn is described
The exhaust end of compressor 1 is connected with the inlet end of the oil eliminator 2, the outlet side of the oil eliminator 2 and the four-way
The D valve port of reversal valve is connected with the b valve port of the three-way magnetic valve 4,5, the C valve port of the four-way reversing valve and the threeway
The c valve port of solenoid valve 4,5 is connected, and a valve port of the three-way magnetic valve 4,5 is connected with the outdoor heat exchanger 8,9, described
Outdoor heat exchanger 8,9 is connected with a valve port of the three-way magnetic valve 6,7, stores up described in the b valve port of the three-way magnetic valve 6,7
The defrosting leakage fluid dram of flow container 11 is connected, and fluid reservoir 11 described in the c valve port of the three-way magnetic valve 6,7 is connected into (out) liquid mouth
It connects, (into) liquid mouth 18 that goes out of the fluid reservoir 11 is connected with the indoor electronic expansion valve 12,13, the indoor electronic expansion
Valve 12,13 is connected with the indoor heat exchanger 14,15, the E valve port of the indoor heat exchanger 14,15 and the four-way reversing valve
It is connected, the S valve port of the four-way reversing valve is connected with the air inlet of the gas-liquid separator 16, the gas-liquid separator 16
Gas outlet be connected with the suction end of the compressor 1.
In one embodiment, Fig. 2 is to be illustrated according to the defrosting process of the air-conditioning defrosting system of one embodiment of the invention
Figure, when 8 defrosting of outdoor heat exchanger, the high-temperature high-pressure refrigerant gas that compressor 1 is discharged enters gs-oil separator 2, from oil gas point
Divide two-way after flowing out from device 2, the b valve port through three-way magnetic valve 4 enters outdoor heat exchanger 8 all the way, the frost layer in outdoor heat exchanger 8
Absorb heat melt, high-temperature high-pressure gas refrigerant release heat become high pressure medium temperature liquid refrigerant, through three-way magnetic valve 6 into
Enter in fluid reservoir 11.Another way enters the D valve port of four-way reversing valve 3, enters the room heat exchanger 14,15 after the outflow of E valve port, passes through
Heat exchange becomes medium temperature high pressure liquid refrigerant, enters in fluid reservoir 11 through indoor electronic expansion valve 12,13, flows from fluid reservoir 11
Refrigerant out becomes low temperature low pressure liquid refrigerants after the throttling of outdoor electrical expansion valve 10, into the c valve of three-way magnetic valve 7
Mouthful, it is flowed out from a valve port of three-way magnetic valve 7, into outdoor heat exchanger 9, it is low to become low temperature for absorption heat in outdoor heat exchanger 9
Cryogen of calming the anger flows out, into four-way reversing valve 3 into a valve port of three-way magnetic valve 5 from the c valve port of three-way magnetic valve 5
C valve port, enter gas-liquid separator 16 after the outflow of S valve port, absorbed after the outflow of gas-liquid separator 16 by compressor 1.
In one embodiment, Fig. 3 is to be illustrated according to the defrosting process of the air-conditioning defrosting system of one embodiment of the invention
Figure, when 9 defrosting of outdoor heat exchanger, the high-temperature high-pressure refrigerant gas that compressor 1 is discharged enters gs-oil separator 2, from oil gas point
Dividing two-way after flowing out from device 2, the b valve port through three-way magnetic valve 5 enters outdoor heat exchanger 8 all the way, in outdoor heat exchanger 8, frost
Layer absorbs heat and melts, and high-temperature high-pressure gas refrigerant, which releases heat, becomes high pressure medium temperature liquid refrigerant, through three-way magnetic valve 7
Into in fluid reservoir 11.Another way enters the D valve port of four-way reversing valve 3, enters the room heat exchanger 14,15 after the outflow of E valve port,
Become medium temperature high pressure liquid refrigerant through heat exchange, enters in fluid reservoir 11 through indoor electronic expansion valve 12,13, from fluid reservoir 11
The refrigerant of trickle becomes low temperature low pressure liquid refrigerants after the throttling of outdoor electrical expansion valve 10, into three-way magnetic valve
6 c valve port is flowed out from a valve port of three-way magnetic valve 6, and into outdoor heat exchanger 8, absorbing heat in outdoor heat exchanger 8 becomes
Low temperature low pressure gas refrigerant is flowed out from the c valve port of three-way magnetic valve 4, is changed into four-way into a valve port of three-way magnetic valve 4
To the C valve port of valve 3, enter gas-liquid separator 16 after the outflow of S valve port, is absorbed after the outflow of liquid/gas separator 16 by compressor 1.
In one embodiment, Fig. 4 is to be illustrated according to the heating process of the air-conditioning defrosting system of one embodiment of the invention
Figure, outdoor heat exchanger 8,9 not defrosting when normal heating state, the high-temperature high-pressure refrigerant gas entrance that compressor 1 is discharged
Gs-oil separator 2 enters the D valve port of four-way reversing valve 3 after the outflow of gs-oil separator 2, enters the room and changes after the outflow of E valve port
Hot device 14,15, becomes medium temperature high pressure liquid refrigerant through heat exchange, enters in fluid reservoir 11 through indoor electronic expansion valve 12,13,
Become low temperature low pressure liquid refrigerants after the throttling of outdoor electrical expansion valve 10 from the refrigerant of 11 trickle of fluid reservoir, enters
The c valve port of three-way magnetic valve 6,7 enters outdoor heat exchanger 8,9 from the outflow of a valve port of three-way magnetic valve 6,7, in outdoor heat exchanger
8, heat is absorbed in 9 becomes low temperature low pressure gas refrigerant, into a valve port of three-way magnetic valve 4,5, from three-way magnetic valve 4,5
The outflow of c valve port enter gas-liquid separator 16 after the outflow of S valve port, from liquid/gas separator 16 into the C valve port of four-way reversing valve 3
It is absorbed after outflow by compressor 1.
In one embodiment, Fig. 5 is to be illustrated according to the cooling flow of the air-conditioning defrosting system of one embodiment of the invention
Figure, normal refrigerating state, the high-temperature high-pressure refrigerant gas that compressor 1 is discharged enters gs-oil separator 2, from gs-oil separator 2
The D valve port for entering four-way reversing valve 3 after outflow enters the c valve port of three-way magnetic valve, from three-way magnetic valve after the outflow of C valve port
A valve port outflow after enter outdoor heat exchanger 8,9, become medium temperature high pressure liquid refrigerant through heat exchange, into three-way magnetic valve
6,7 a valve port enters fluid reservoir 11 through outdoor electrical expansion valve 10 after the outflow of c valve port, the liquid system flowed out from fluid reservoir 11
Cryogen becomes low temperature low pressure liquid refrigerants after the throttling of indoor electronic expansion valve 12,13, enters the room heat exchanger 14,15,
Heat absorption evaporation becomes low temperature low pressure gas refrigerant in indoor heat exchanger, into the E valve port of four-way reversing valve 3, commutates from four-way
Enter gas-liquid separator 16 after the S valve port outflow of valve 3, is absorbed after gas-liquid separator outflow by compressor 1.
According to another aspect of the present invention, a kind of air-conditioning system includes the air-conditioning defrosting system.
The above, only presently preferred embodiments of the present invention not do limitation in any form to the present invention.It is any ripe
Those skilled in the art is known, without departing from the scope of the technical proposal of the invention, all using technology contents described above
Many possible changes and modifications or equivalent example modified to equivalent change are made to technical solution of the present invention.Therefore, all
It is the content without departing from technical solution of the present invention, any change modification made to the above embodiment of technology according to the present invention,
Equivalent variations and modification belong to the protection scope of the technical program.
Claims (10)
1. a kind of air-conditioning defrosting system comprising,
Compressor,
Four-way reversing valve comprising D valve port, E valve port, S valve port and C valve port, the S valve port are connected to compressor,
First to fourth triple valve respectively includes a valve port, b valve port and c valve port,
First outdoor heat exchanger, one end connect a valve port of the first triple valve, and the other end connects a valve port of third triple valve,
In, the b valve port connection compressor of the first triple valve, the C valve port of the c valve port connection four-way reversing valve of the first triple valve, the three or three
The defrosting leakage fluid dram of the b valve port connection liquid storage unit of port valve, the c valve port of third triple valve are connected to outdoor electrical expansion valve,
First temperature sensor is located in the middle part of the pipeline of the first outdoor heat exchanger to measure the first temperature,
Second outdoor heat exchanger, one end connect a valve port of the second triple valve, and the other end connects a valve port of the 4th triple valve,
In, the b valve port connection compressor of the second triple valve, the C valve port of the c valve port connection four-way reversing valve of the second triple valve, the four or three
The defrosting leakage fluid dram of the b valve port connection liquid storage unit of port valve, the c valve port of the 4th triple valve are connected to outdoor electrical expansion valve,
Second temperature sensor is located in the middle part of the pipeline of the second outdoor heat exchanger to measure second temperature,
Liquid storage unit comprising first, second mouthful and defrosting leakage fluid dram, wherein the first is expanded via outdoor electrical
Valve is connected to the c valve port of the second triple valve and the c valve port of the 4th triple valve,
First indoor heat exchanger, one end connect the E valve port of four-way reversing valve, and the other end connects via the first indoor electronic expansion valve
Second mouthful is connect,
Second indoor heat exchanger, one end connect the E valve port of four-way reversing valve, and the other end connects via electric expansion valve in second Room
Connect second mouthful.
2. air-conditioning defrosting system according to claim 1, wherein first to fourth triple valve is two-position three-way electromagnetic
Valve, b valve port are not connected to c valve port, and when energization, a valve port is connected to b valve port, and a valve port is not connected to c valve port, when power-off, a valve port
It is connected to c valve port, a valve port is not connected to b valve port.
3. air-conditioning defrosting system according to claim 1, wherein compressor is connected to D valve port, the one or three via oil eliminator
The b valve port of port valve and the b valve port of the second triple valve.
4. air-conditioning defrosting system according to claim 1, wherein compressor is connected to S valve port via gas-liquid separator.
5. air-conditioning defrosting system according to claim 1, wherein when the first outdoor heat exchanger defrosting, the first triple valve and
Third triple valve be powered, compressor discharge high-temperature high-pressure refrigerant gas first flow path through the b valve port of the first triple valve into
Enter the first outdoor heat exchanger and is converted into high pressure medium temperature liquid refrigerant, high pressure medium temperature liquid refrigerant warp by absorbing heat defrosting
The b valve port of third triple valve enters in liquid storage unit via defrosting leakage fluid dram, the high-temperature high-pressure refrigerant gas of compressor discharge
Second flow path enter D valve port and through heat exchange become medium temperature height via entering the first and second indoor heat exchangers after the outflow of E valve port
Hydraulic fluid cryogen, medium temperature high pressure liquid refrigerant enter liquid storage list via second mouthful through the first and second indoor electronic expansion valves
Member, the second triple valve and the 4th triple valve are powered, and the refrigerant of liquid storage unit outflow becomes after the throttling of outdoor electrical expansion valve
Low temperature low pressure liquid refrigerants, into the c valve port of the 4th triple valve after from its a valve port outflow enter the second outdoor heat exchanger,
Heat is absorbed in second outdoor heat exchanger becomes low temperature low pressure gas refrigerant, into a valve port of the second triple valve, from its c valve
Mouthful outflow, into C valve port after from S valve port flow out return compressor.
6. air-conditioning defrosting system according to claim 1, wherein when the second outdoor heat exchanger defrosting, the second triple valve and
4th triple valve be powered, compressor discharge high-temperature high-pressure refrigerant gas third flow path through the b valve port of the second triple valve into
Enter the second outdoor heat exchanger and is converted into high pressure medium temperature liquid refrigerant, high pressure medium temperature liquid refrigerant warp by absorbing heat defrosting
The b valve port of 4th triple valve enters in liquid storage unit via defrosting leakage fluid dram, the high-temperature high-pressure refrigerant gas of compressor discharge
Third flow path enter D valve port and through heat exchange become medium temperature height via entering the first and second indoor heat exchangers after the outflow of E valve port
Hydraulic fluid cryogen, medium temperature high pressure liquid refrigerant enter liquid storage list via second mouthful through the first and second indoor electronic expansion valves
Member, the first triple valve and third triple valve are powered, and the refrigerant of liquid storage unit outflow becomes after the throttling of outdoor electrical expansion valve
Low temperature low pressure liquid refrigerants, into the c valve port of third triple valve after from its a valve port outflow enter the first outdoor heat exchanger,
Heat is absorbed in first outdoor heat exchanger becomes low temperature low pressure gas refrigerant, into a valve port of the first triple valve, from its c valve
Mouthful outflow, into C valve port after from S valve port flow out return compressor.
7. air-conditioning defrosting system according to claim 1, wherein the high-temperature high-pressure refrigerant gas of compressor discharge enters
Gs-oil separator enters the D valve port of four-way reversing valve after gs-oil separator outflow, enters first and the after the outflow of E valve port
Two indoor heat exchangers become medium temperature high pressure liquid refrigerant through heat exchange, respectively through the first and second indoor electronic expansion valves into
Enter in liquid storage unit, becomes low temperature and low pressure liquid after the throttling of outdoor electrical expansion valve from the refrigerant of liquid storage unit trickle
Refrigerant respectively enters the c valve port of third and third three-way magnetic valve, respectively enters first and second from the outflow of its a valve port
Outdoor heat exchanger, which is absorbed heat, becomes low temperature low pressure gas refrigerant, enters a valve port of the first and second triple valves and from c
Valve port outflow enters gas-liquid separator after the outflow of S valve port into C valve port, is absorbed after liquid/gas separator outflow by compressor.
8. air-conditioning defrosting system according to claim 1, wherein the high-temperature high-pressure refrigerant gas of compressor discharge enters
Gs-oil separator enters the D valve port of four-way reversing valve after gs-oil separator outflow, enters first and the after the outflow of C valve port
The c valve port of two triple valves enters the first and second outdoor heat exchangers after the outflow of a valve port respectively, becomes medium temperature height through heat exchange
Hydraulic fluid cryogen enters after the outflow of its c valve port through outdoor electrical expansion valve into a valve port of the third and fourth triple valve
Liquid storage unit, it is low that the liquid refrigerant flowed out from liquid storage unit becomes low temperature after the throttling of the first and second indoor electronic expansion valves
Hydraulic fluid cryogen respectively enters the first and second indoor heat exchangers, and it is low that evaporation of absorbing heat in heat exchanger indoors becomes low temperature
It calms the anger cryogen, into the E valve port of four-way reversing valve, enters gas-liquid separator after the outflow of the S valve port of four-way reversing valve, from
It is absorbed after gas-liquid separator outflow by compressor.
9. air-conditioning defrosting system according to claim 1, wherein the liquid storage unit is fluid reservoir, is equipped in fluid reservoir
Agitating unit.
10. a kind of air-conditioning system comprising air-conditioning defrosting system as claimed in any one of claims 1-9 wherein.
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| CN201811392496.6A CN109442793A (en) | 2018-11-21 | 2018-11-21 | A kind of air-conditioning defrosting system and air-conditioning system |
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| CN201811392496.6A CN109442793A (en) | 2018-11-21 | 2018-11-21 | A kind of air-conditioning defrosting system and air-conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112178991A (en) * | 2020-09-16 | 2021-01-05 | 珠海格力电器股份有限公司 | Temperature control apparatus, defrosting method, electronic apparatus, and computer-readable medium |
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