CN209165824U - 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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- CN209165824U CN209165824U CN201821925973.6U CN201821925973U CN209165824U CN 209165824 U CN209165824 U CN 209165824U CN 201821925973 U CN201821925973 U CN 201821925973U CN 209165824 U CN209165824 U CN 209165824U
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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 utility model belongs to air conditioner technical field, 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 utility model one kind can continuous heating defrost air conditioner, the outdoor of the air conditioner
Heat exchanger includes two groups of outdoor heat exchanger units, and outdoor heat exchanger unit distinguishes serial electronic expansion valve, when heating mode, from room
The high pressure liquid refrigerant of interior heat exchanger outflow and the high pressure defrosting liquid refrigerant flowed out from one group of outdoor heat exchanger jointly into
Enter another 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 room
Liquid refrigerant in outer defrosting heat exchanger unit cannot exclude in time, and excess liquid refrigerant enters another group of outdoor heat exchanger
Unit 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
Defrosting liquid in unit cannot be discharged in time, and defrosting effect is poor；3, the liquid refrigerant that not defrosting outdoor heat exchanger is fed is super
Amount, causes suction temperature to reduce, and 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.
Utility model content
In place of solving above-mentioned the deficiencies in the prior art, the utility model provides a kind of air-conditioning defrosting system and air-conditioning system
System adds fluid reservoir, outdoor electrical expansion valve and storage by arrangement liquid storage unit in outdoor electrical expansion valve and refrigeration system
The high-temperature gas of flow container series connection, compressor discharge enters defrosting outdoor heat exchanger, liquid refrigerant and indoor heat exchanger after defrosting
In liquid refrigerant flow into liquid storage unit, system pass through according to actual needs outdoor electrical expansion valve give outdoor heat exchanger supply
Liquid, surplus liquid refrigerant storage is in liquid storage unit.Indoor heat exchanger liquid can be discharged in the utility model in time, reduce cold
Solidifying pressure, promotes heating and defrosting effect, not will cause outdoor heat exchanger feed flow excess, compressor is avoided to return liquid.
The purpose of this utility model is to 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 port 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, enters
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.
Another aspect according to the present utility model, a kind of air-conditioning system include the air-conditioning defrosting system.
The utility model has the advantage 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 merely an outline of the technical solution of the present invention, in order to make the technological means of the utility model
It is more clearly understood, reaches the degree that those skilled in the art can be implemented in accordance with the contents of the specification, and in order to
Above and other objects, features and advantages of the utility model are allowed to can be more clearly understood, below with the specific of the utility model
Embodiment is illustrated.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Below with reference to attached drawing, the utility model is described in further detail:
Fig. 1 is the structural schematic diagram according to the air-conditioning defrosting system of the utility model one embodiment；
Fig. 2 is the defrosting flow diagram according to the air-conditioning defrosting system of the utility model one embodiment；
Fig. 3 is the defrosting flow diagram according to the air-conditioning defrosting system of the utility model one embodiment；
Fig. 4 is the heating flow diagram according to the air-conditioning defrosting system of the utility model one embodiment；
Fig. 5 is the cooling flow schematic diagram according to the air-conditioning defrosting system of the utility model one embodiment.
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 utility model will be described in detail below with reference to the accompanying drawings and embodiments.
In order to better understand, Fig. 1 is the structural representation according to the electric motor mounting structure of the utility model one embodiment
Figure, as shown in Figure 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 third triple valve 6
A 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 the 4th triple valve 7
A 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 are powered, and the first flow path for the high-temperature high-pressure refrigerant gas that compressor 1 is discharged is through the b valve port of the first triple valve 4
High pressure medium temperature liquid refrigerant, high pressure medium temperature liquid refrigerating are converted by absorbing heat defrosting into the first outdoor heat exchanger 8
B valve port of the agent through third triple valve 6 enters in liquid storage unit 11 via defrosting leakage fluid dram 19, the high temperature and pressure that compressor 1 is discharged
The second flow path of refrigerant gas enters D valve port and hands over into the first and second indoor heat exchangers 15 through heat via after the outflow of E valve port
Transformation is medium temperature high pressure liquid refrigerant, and medium temperature high pressure liquid refrigerant is through the first and second indoor electronic expansion valves 13 via the
Enter liquid storage unit 11 for two mouthful 18, 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 room
Exoelectron 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
Outflow enters the second outdoor heat exchanger 9, and heat is absorbed in the second outdoor heat exchanger 9 becomes low temperature low pressure gas refrigerant, into
The a valve port for entering the 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 are powered, and the third flow path for the high-temperature high-pressure refrigerant gas that compressor 1 is discharged is through the b valve port of the second triple valve 5
High pressure medium temperature liquid refrigerant, high pressure medium temperature liquid refrigerating are converted by absorbing heat defrosting into the second outdoor heat exchanger 9
B valve port of the agent through the 4th triple valve 7 enters in liquid storage unit 11 via defrosting leakage fluid dram 19, the high temperature and pressure that compressor 1 is discharged
The third flow path of refrigerant gas enters D valve port and hands over into the first and second indoor heat exchangers 15 through heat via after the outflow of E valve port
Transformation is medium temperature high pressure liquid refrigerant, and medium temperature high pressure liquid refrigerant is through the first and second indoor electronic expansion valves 13 via the
Enter liquid storage unit 11 for two mouthful 18, the first triple valve 4 and third triple valve 6 are powered, and the refrigerant that liquid storage unit 11 flows out is through room
Exoelectron 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
Outflow enters the first outdoor heat exchanger 8, and heat is absorbed in the first outdoor heat exchanger 8 becomes low temperature low pressure gas refrigerant, into
The a valve port for entering the 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 utility model, in one embodiment, hot gas melts two groups of outdoor heat exchangers of one kind in turn
Defrosting 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, outdoor electrical 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 the defrosting process according to the air-conditioning defrosting system of the utility model one embodiment
Schematic diagram, in air-conditioning defrosting system, as the liquid storage unit 11 of fluid reservoir include as inlet (or liquid outlet) first 1717,
Such as second mouthful 1818 of liquid outlet (or inlet), defrosting leakage fluid dram 19.Three-way magnetic valve 4,5,6,7 is two-position three-way electromagnetic
Valve, including a valve port, b valve port and c valve port, b valve port are 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 is not connected to, and when power-off, a valve port is connected to c valve port, and a valve port is not connected to b valve port.Four-way described in heating and defrosting state
Reversal 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
It is connected to C valve port, E valve port is 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, threeway
Solenoid 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 described three
The c valve port of three-way electromagnetic 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, institute
It states outdoor heat exchanger 8,9 to be connected with a valve port of the three-way magnetic valve 6,7, described in the b valve port of the three-way magnetic valve 6,7
The defrosting leakage fluid dram of fluid reservoir 11 is connected, fluid reservoir 11 described in the c valve port of the three-way magnetic valve 6,7 into (out) liquid mouth phase
(into) liquid mouth 18 that goes out of connection, 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 of the indoor heat exchanger 14,15 and the four-way reversing valve
Valve port is connected, and 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 separation
The gas outlet of device 16 is connected with the suction end of the compressor 1.
In one embodiment, Fig. 2 is the defrosting process according to the air-conditioning defrosting system of the utility model one embodiment
Schematic diagram, 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 separating device 2 divides two-way after flowing out, and the b valve port through three-way magnetic valve 4 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 threeway electromagnetism
Valve 6 enters in fluid reservoir 11.Another way enters the D valve port of four-way reversing valve 3, enters the room heat exchanger after the outflow of E valve port
14,15, become medium temperature high pressure liquid refrigerant through heat exchange, enters in fluid reservoir 11 through indoor electronic expansion valve 12,13, from storage
The refrigerant that flow container 11 flows out becomes low temperature low pressure liquid refrigerants after the throttling of outdoor electrical expansion valve 10, is powered into three
The c valve port of magnet valve 7 is flowed out from a valve port of three-way magnetic valve 7, and into outdoor heat exchanger 9, heat is absorbed in outdoor heat exchanger 9
Quantitative change is low temperature low pressure gas refrigerant, into a valve port of three-way magnetic valve 5, flows out, enters from the c valve port of three-way magnetic valve 5
The C valve port of four-way reversing valve 3 enters gas-liquid separator 16 after the outflow of S valve port, is compressed after the outflow of gas-liquid separator 16
Machine 1 absorbs.
In one embodiment, Fig. 3 is the defrosting process according to the air-conditioning defrosting system of the utility model one embodiment
Schematic diagram, 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 separating device 2 divides two-way after flowing out, and the b valve port through three-way magnetic valve 5 enters outdoor heat exchanger 8 all the way, in outdoor heat exchanger 8
In, frost layer absorbs heat and melts, and high-temperature high-pressure gas refrigerant, which releases heat, becomes high pressure medium temperature liquid refrigerant, is powered through three
Magnet valve 7 enters in fluid reservoir 11.Another way enters the D valve port of four-way reversing valve 3, enters the room heat exchanger after the outflow of E valve port
14,15, become medium temperature high pressure liquid refrigerant through heat exchange, enters in fluid reservoir 11 through indoor electronic expansion valve 12,13, from storage
The refrigerant of 11 trickle of flow container becomes low temperature low pressure liquid refrigerants after the throttling of outdoor electrical expansion valve 10, into threeway
The c valve port of solenoid valve 6 is flowed out from a valve port of three-way magnetic valve 6, into outdoor heat exchanger 8, is absorbed in outdoor heat exchanger 8
Heat becomes low temperature low pressure gas refrigerant, into a valve port of three-way magnetic valve 4, flows out from the c valve port of three-way magnetic valve 4, into
The C valve port for entering four-way reversing valve 3 enters gas-liquid separator 16 after the outflow of S valve port, is compressed after the outflow of liquid/gas separator 16
Machine 1 absorbs.
In one embodiment, Fig. 4 is the heating process according to the air-conditioning defrosting system of the utility model one embodiment
Schematic diagram, outdoor heat exchanger 8,9 not defrosting when normal heating state, the high-temperature high-pressure refrigerant gas that compressor 1 is discharged
Into gs-oil separator 2, the D valve port of four-way reversing valve 3 is entered after the outflow of gs-oil separator 2, is entered after the outflow of E valve port
Indoor heat exchanger 14,15 becomes medium temperature high pressure liquid refrigerant through heat exchange, enters liquid storage through indoor electronic expansion valve 12,13
In tank 11, become low temperature and low pressure liquid system after the throttling of outdoor electrical expansion valve 10 from the refrigerant of 11 trickle of fluid reservoir
Cryogen enters outdoor heat exchanger 8,9 from the outflow of a valve port of three-way magnetic valve 6,7 into the c valve port of three-way magnetic valve 6,7,
Heat is absorbed in outdoor heat exchanger 8,9 becomes low temperature low pressure gas refrigerant, into a valve port of three-way magnetic valve 4,5, from threeway
The c valve port of solenoid valve 4,5 flows out, and into the C valve port of four-way reversing valve 3, enters gas-liquid separator 16 after the outflow of S valve port, from
Liquid/gas separator 16 is absorbed after flowing out by compressor 1.
In one embodiment, Fig. 5 is the cooling flow according to the air-conditioning defrosting system of the utility model one embodiment
Schematic diagram, normal refrigerating state, the high-temperature high-pressure refrigerant gas that compressor 1 is discharged enters gs-oil separator 2, from Oil-gas Separation
Device 2 enters the D valve port of four-way reversing valve 3 after flowing out, the c valve port of three-way magnetic valve is entered after the outflow of C valve port, is powered from three
Enter outdoor heat exchanger 8,9 after a valve port outflow of magnet valve, becomes medium temperature high pressure liquid refrigerant through heat exchange, be powered into three
The a valve port of magnet valve 6,7 enters fluid reservoir 11 through outdoor electrical expansion valve 10 after the outflow of c valve port, flows out from fluid reservoir 11
Liquid refrigerant through indoor electronic expansion valve 12,13 throttling after become low temperature low pressure liquid refrigerants, enter the room heat exchanger 14,
15, heat absorption evaporation becomes low temperature low pressure gas refrigerant in heat exchanger indoors, into the E valve port of four-way reversing valve 3, from four-way
Enter gas-liquid separator 16 after the S valve port outflow of reversal valve 3, is absorbed after gas-liquid separator outflow by compressor 1.
Another aspect according to the present utility model, a kind of air-conditioning system include the air-conditioning defrosting system.
The above, the only preferred embodiment of the utility model, not do limit in any form to the utility model
System.Anyone skilled in the art, in the case where not departing from technical solutions of the utility model ambit, all using above-mentioned
The technology contents make many possible changes and modifications to technical solutions of the utility model, or be revised as equivalent variations etc.
Imitate embodiment.Therefore, all contents without departing from technical solutions of the utility model, the technology according to the utility model is to the above reality
Any change modification, equivalent variations and modification that example is made are applied, the protection scope of the technical program is belonged to.
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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| CN201821925973.6U CN209165824U (en) | 2018-11-21 | 2018-11-21 | A kind of air-conditioning defrosting system and air-conditioning system |
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| CN201821925973.6U CN209165824U (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 |
|---|---|---|---|---|
| CN109442793A (en) * | 2018-11-21 | 2019-03-08 | 宁波奥克斯电气股份有限公司 | A kind of air-conditioning defrosting system and air-conditioning system |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442793A (en) * | 2018-11-21 | 2019-03-08 | 宁波奥克斯电气股份有限公司 | A kind of air-conditioning defrosting system and air-conditioning system |
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