CN110131928A - Three-way flow direction conversion device for refrigerant - Google Patents
Three-way flow direction conversion device for refrigerant Download PDFInfo
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- CN110131928A CN110131928A CN201910206989.4A CN201910206989A CN110131928A CN 110131928 A CN110131928 A CN 110131928A CN 201910206989 A CN201910206989 A CN 201910206989A CN 110131928 A CN110131928 A CN 110131928A
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 230000006835 compression Effects 0.000 claims abstract description 45
- 238000007906 compression Methods 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a kind of three-way flow direction conversion device for refrigerant, it compression mechanism, the first four-way valve, the second four-way valve, the first outdoor heat exchanger, the second outdoor heat exchanger, user's heat exchanger, first throttle mechanism, second throttle body, third throttle mechanism, the first check valve, second one-way valve, flow direction control valve, third check valve, the 4th check valve by being at least made of；The low pressure node of first four-way valve is connected by the 65th pipeline with the low pressure node of the second four-way valve, the high voltage nodes of first four-way valve pass sequentially through the 60th pipeline, compression mechanism outlet end, compression mechanism arrival end are connected with the 65th pipeline between the low pressure node of the first four-way valve and the low pressure node of the second four-way valve, and the high voltage nodes of the second four-way valve are connected by the 59th pipeline with the 60th pipeline between compression mechanism outlet end and the high voltage nodes of the first four-way valve；Its main feature is that: when work, three accesses can realize two-way flow, be able to achieve more conversion functions.
Description
Technical field
The present invention relates to a kind of three-way flow direction conversion device for refrigerant, belong to refrigeration technology field.
Background technique
Present invention applicant authorized on 06 29th, 2016, the patent of invention of Patent No. 201110355023.0
Propose a kind of three-way flow direction conversion device for refrigerant, system composition as shown in figure 3, from the figure 3, it may be seen that in the conversion equipment,
Access where 51st pipeline 51, refrigerant can only realize one-way flow, due to the access refrigerant can not achieve it is two-way
Flowing, therefore keep the achievable function of the three-way flow direction conversion device for refrigerant few, limit its use scope in practice.
Summary of the invention
The object of the present invention is to provide one kind can make three accesses that can realize two-way flow, and the operation is stable, knot
Structure is simple, the three-way flow direction conversion device for refrigerant of more conversion functions may be implemented.
In order to overcome the problems, such as that above-mentioned technology exists, the technical solution that the present invention solves technical problem is:
A kind of three-way flow direction conversion device for refrigerant, including compression mechanism (1), the first four-way valve (70), the second four-way valve
(80), the first check valve (21), second one-way valve (22), it is characterized in that: the three-way flow direction conversion device for refrigerant further includes stream
To control valve (12), third check valve (23), the 4th check valve (24)；
The low pressure node (73) of first four-way valve (70) passes through the 65th pipeline (65) and second four-way valve
(80) low pressure node (83) is connected, and the high voltage nodes (71) of first four-way valve (70) pass sequentially through the 60th pipeline
(60), compression mechanism (1) outlet end, compression mechanism (1) arrival end, the 63rd pipeline (63), with first four-way valve
(70) the 65th pipeline (65) between the low pressure node (83) of low pressure node (73) and the second four-way valve (80) is connected, institute
It states the high voltage nodes (81) of the second four-way valve (80) and passes through the 59th pipeline (59) and the compression mechanism (1) outlet end and the
The 60th pipeline (60) between the high voltage nodes (71) of one four-way valve (70) is connected；
The common points (82) of second four-way valve (80) pass sequentially through the 66th pipeline (66), described second unidirectionally
Valve (22) arrival end, second one-way valve (22) outlet end, the first check valve (21) outlet end, the first check valve (21) arrival end,
61st pipeline (61) is connected with the common points (72) of first four-way valve (70)；
Pipeline and the 51st pipe between first check valve (21) outlet end and second one-way valve (22) outlet end
Road (51) is connected；
The normally opened node (74) of first four-way valve (70) is connected with the 64th pipeline (64)；
The normally opened node (84) of second four-way valve (80) is connected with the 67th pipeline (67)；
Third check valve (23) outlet end is connected with the 66th pipeline (66), third check valve (23) entrance
End passes sequentially through the 4th check valve (24) arrival end, the 4th check valve (24) outlet end, with the 61st pipeline (61) phase
Even；
Described flow direction control valve (12) one end and the first check valve (21) outlet end and second one-way valve (22) export
Pipeline between end is connected, and flow direction control valve (12) other end and third check valve (23) arrival end and the 4th are unidirectionally
Pipeline between valve (24) arrival end is connected.
Compared with prior art, the present invention the beneficial effect is that:
1. during the work time, three accesses can realize two-way flow, more conversion functions can be realized as needed；
2. the operation is stable, reliable；
3. structure is simple, low in cost；
4. the present invention is suitable for industry and civil field, the air source heat pump air-conditioner equipment with multiple functions, especially suitable
For having the air source heat pump air-conditioner equipment of refrigeration, heating function.
Detailed description of the invention
Fig. 1 is three-way flow direction conversion device for refrigerant structural schematic diagram of the present invention；
Fig. 2 is air source heat pump air-conditioner device structure of the embodiment of the present invention 1 using three-way flow direction conversion device for refrigerant
Schematic diagram；
Fig. 3 is prior art construction schematic diagram.
Specific embodiment
The content of present invention is described in further detail with reference to the accompanying drawing.
Fig. 1 show the structural schematic diagram of three-way flow direction conversion device for refrigerant 100 of the present invention, and whole device includes following
Component part: compression mechanism 1, the first four-way valve 70, the second four-way valve 80, flow direction control valve 12, the first check valve 21, second are single
To valve 22, third check valve 23 and the 4th check valve 24.The connection type of entire three-way flow direction conversion device for refrigerant 100 is:
The low pressure node 73 of first four-way valve 70 passes through the low pressure node 83 of the 65th pipeline 65 and the second four-way valve 80
It is connected, the high voltage nodes 71 of the first four-way valve 70 pass sequentially through the 60th pipeline 60,1 outlet end of compression mechanism, compression mechanism 1 enter
The low pressure node 83 at mouthful end, the low pressure node 73 of the 63rd pipeline 63 and first four-way valve 70 and the second four-way valve 80 it
Between the 65th pipeline 65 be connected, the high voltage nodes 81 of second four-way valve 80 pass through the 59th pipeline 59 and compressor
The 60th pipeline 60 between 1 outlet end of structure and the high voltage nodes 71 of the first four-way valve 70 is connected, second four-way valve 80
Common points 82 pass sequentially through the 66th pipeline 66,22 arrival end of second one-way valve, 22 outlet end of second one-way valve, the first list
It is connected to 21 outlet end of valve, 21 arrival end of the first check valve, the 61st pipeline 61 with the common points 72 of the first four-way valve 70,
Pipeline between first check valve, 21 outlet end and 22 outlet end of second one-way valve is connected with the 51st pipeline 51, described
The normally opened node 74 of first four-way valve 70 is connected with the 64th pipeline 64, the normally opened node 84 of second four-way valve 80 and
67 pipelines 67 be connected, 23 outlet end of third check valve is connected with the 66th pipeline 66,23 arrival end of third check valve according to
It is secondary pass through 24 arrival end of the 4th check valve, 24 outlet end of the 4th check valve is connected with the 61st pipeline 61, flow direction control valve 12
Pipeline between one end and 22 outlet end of 21 outlet end of the first check valve and second one-way valve is connected, 12 other end of flow direction control valve
Pipeline between 23 arrival end of third check valve and 24 arrival end of the 4th check valve is connected.
In present invention three-way flow direction conversion device for refrigerant 100 shown in FIG. 1, the first check valve 21, second one-way valve
22, any one in third check valve 23 and the 4th check valve 24 can also use solenoid valve, the throttling with turn-off function
Any one substitution in mechanism (such as: electric expansion valve) or flow control device with turn-off function.
In present invention three-way flow direction conversion device for refrigerant 100 shown in FIG. 1, compression mechanism 1 in addition to can use by
It, can also be using by an at least low pressure compressor and an at least height other than the single-stage compressor of at least compressor composition
Press compressor set at Two-stage Compression, naturally it is also possible to using the single machine compression with double stage mode that is made of an at least compressor.
Any one or two in low pressure compressor described above, high pressure compressor simultaneously, following compression can be used
Any one in machine: screw compressor, helical-lobe compressor, rolling rotor compressor, sliding-vane compressor, Spiralism type compression
Machine, centrifugal compressor, digital scroll compressor；Any one or two in low pressure compressor, high pressure compressor simultaneously, can also
To be variable conpacitance compressor (such as: frequency-changeable compressor, digital scroll compressor) or constant speed compressor.
In present invention three-way flow direction conversion device for refrigerant 100 shown in FIG. 1, when compression mechanism 1 is pressed by least one
When the single-stage compressor of contracting machine composition, compression mechanism 1 can be using any one in following compressor: screw compressor, spiral shell
Bar compressor, rolling rotor compressor, sliding-vane compressor, rotary blade type compressor, centrifugal compressor, digital vortex compression
Machine；Compression mechanism 1 is also possible to variable conpacitance compressor (such as: frequency-changeable compressor, digital scroll compressor) or constant speed compression
Machine；Compression mechanism 1 can also be the compressor set being made of an at least variable conpacitance compressor, or by an at least constant speed
Compressor set at compressor set；In addition, compression mechanism 1 is also possible to an at least variable conpacitance compressor and an at least constant speed
Compressor set at compressor set.
Flow direction control valve 12 is solenoid valve, and especially its valve body of the solenoid valve of open type is usually copper or stainless steel material；
Its brand can be any one in three flowers, shield peace, Japanese palace aigret, Danfoss, card pleasure etc..
First four-way valve 70 and the second four-way valve 80 can be using any one in following brand, three flowers, shield peace, Japan
Gong Lu, Danfoss, card pleasure, new three honor etc., valve body material can be copper or stainless steel or carbon steel；In commutation, they are all
Commutation or electronic commutation are realized by the energization of a small solenoid pilot valve, power operation, such as: bi-stable electronic four
Logical reversal valve.
In present invention three-way flow direction conversion device for refrigerant 100 shown in FIG. 1, all pipelines are all copper pipes.
It, can be to system by increasing an oil eliminator in three-way flow direction conversion device for refrigerant 100 shown in Fig. 1
Cryogen threeway flow direction converting 100 is improved further, at this point, the connection type of oil eliminator in systems is: oil
It is connected from device arrival end with 1 outlet end of compression mechanism, oil eliminator outlet end and the 60th pipeline 60 and the 59th pipeline 59
It is connected.When work, the effect of oil eliminator is that the exhaust to compression mechanism 1 carries out oily separation.
By increasing a gas-liquid separator, Ke Yizuo in three-way flow direction conversion device for refrigerant 100 shown in Fig. 1
It is further to improve, at this point, the connection type of gas-liquid separator in systems is: gas-liquid separator outlet end and compression mechanism 1
Arrival end is connected, and gas-liquid separator arrival end is connected by the 63rd pipeline 63 with the 65th pipeline 65.When work, gas-liquid
The effect of separator is the refrigerant liquid separated in 1 air-breathing of compression mechanism, avoids generating liquid hammer.
Content as described below is that present invention three-way flow direction conversion device for refrigerant 100 shown in FIG. 1 has refrigeration, heating
The one embodiment applied in the air source heat pump air-conditioner equipment of function.
Embodiment 1
As shown in Fig. 2, the present embodiment is a kind of air source heat pump air-conditioner equipment for being able to achieve continuous heat supply defrost, for having
The occasion of heat supply in winter, cooling in summer demand.
Whole equipment includes consisting of part: compression mechanism 1, the first four-way valve 70, the second four-way valve 80, first throttle
Mechanism 6, second throttle body 7, third throttle mechanism 8, the first outdoor heat exchanger 4, the second outdoor heat exchanger 5, user's heat exchanger
3, flow direction control valve 12.
First throttle mechanism 6, second throttle body 7, third throttle mechanism 8 are all electric expansion valve.Flow direction control valve 12
It is solenoid valve, especially the solenoid valve of open type, valve body are usually copper or stainless steel material
The air source heat pump air-conditioner equipment in operational process, may be implemented for warm two function of continuous heating defrost in winter
Energy.
When normal work, the first outdoor heat exchanger 4, the second outdoor heat exchanger 5 are all heat source side heat exchangers, as evaporation
Device absorbs heat from environment；User's heat exchanger 3 is user side heat exchanger, as condenser, is heated for user.
Workflow difference under each function is as described below.
(1) heating function
Compression mechanism 1, the first outdoor heat exchanger 4, the second outdoor heat exchanger 5, user's heat exchanger 3 all work normally；First
Outdoor heat exchanger 4, the second outdoor heat exchanger 5 are used as evaporator, and heat is absorbed from environment；User's heat exchanger 3 is used as condenser,
For user's heating.
First throttle mechanism 6, second throttle body 7 work normally, and for throttling, and respectively, control is changed by the first outdoor
The refrigerant flow of hot device 4, the second outdoor heat exchanger 5
8 standard-sized sheet of third throttle mechanism；Flow direction control valve 12 does not work
When work, 70 high voltage nodes 71 of the first four-way valve are communicated with 70 common points 72 of the first four-way valve, the first four-way valve
70 normally opened nodes 74 are communicated with 70 low pressure node 73 of the first four-way valve.Second four-way valve, 80 high voltage nodes 81 and the second four-way valve 80
Common points 82 communicate, and the normally opened node 84 of the second four-way valve 80 is communicated with 80 low pressure node 83 of the second four-way valve.
Its workflow is: after refrigerant is discharged from 1 outlet end of compression mechanism, being divided into two into the 60th pipeline 60
Road；The first via successively pass through the 60th pipeline 60,70 high voltage nodes 71 of the first four-way valve, 70 common points 72 of the first four-way valve,
61st pipeline 61,21 arrival end of the first check valve, 21 outlet end of the first check valve, into the 51st pipeline 51；
The 60th pipeline 60, the 59th pipeline 59,80 high voltage nodes 81, second of the second four-way valve are successively passed through in second tunnel
80 common points 82 of four-way valve, the 66th pipeline 66,22 arrival end of second one-way valve, 22 outlet end of second one-way valve, also into
Enter the 51st pipeline 51；
Two-way is user's heating into user's heat exchanger 3 after the mixing of the 51st pipeline 51, wherein refrigerant gas
Become liquid after releasing heat, after refrigerant liquid comes out from user's heat exchanger 3, enters the 5th using third throttle mechanism 8
14 pipelines 54, and it is divided into two-way；The first via successively passes through first throttle mechanism 6, the first outdoor heat exchanger the 4, the 64th
Pipeline 64, the normally opened node 74 of the first four-way valve 70,70 low pressure node 73 of the first four-way valve, into the 65th pipeline 65；It is another
Second throttle body 7, the second outdoor heat exchanger 5, the 67th pipeline 67, the normally opened node of the second four-way valve 80 are successively passed through in road
84,80 low pressure node 83 of the second four-way valve also enters the 65th pipeline 65；Two-way is after the mixing of the 65th pipeline 65, warp
It crosses the 63rd pipeline 63 and returns to 1 arrival end of compression mechanism, be re-compressed into compression mechanism 1, complete one cycle.
(2) continuous heating defrosting function
When working under this function, flow direction control valve 12 is closed user's heat exchanger 3 and is worked normally, and heats two groups of for user
Outdoor heat exchanger replaces its course of work of defrost and distinguishes following
1) when the first outdoor heat exchanger 4 is by defrost, the second outdoor heat exchanger 5 is worked normally, and is absorbed heat from outdoor air
At this point, first throttle mechanism 6,8 standard-sized sheet of third throttle mechanism, second throttle body 7 is worked normally；Second four-way valve
80 are failure to actuate, and still maintain state when heating function；
The switching of first four-way valve 70, the connected relation between four nodes are as follows: 70 high voltage nodes 71 of the first four-way valve with
The normally opened node 74 of first four-way valve 70 communicates, 70 common points 72 of the first four-way valve and 70 low pressure node of the first four-way valve, 73 phase
Logical
Its workflow is: after refrigerant is discharged from 1 outlet end of compression mechanism, being divided into two into the 60th pipeline 60
Road；The first via successively pass through the 60th pipeline 60,70 high voltage nodes 71 of the first four-way valve, the normally opened node 74 of the first four-way valve 70,
64th pipeline 64, the first outdoor heat exchanger 4, first throttle mechanism 6, into the 54th pipeline 54；
The 60th pipeline 60, the 59th pipeline 59,80 high voltage nodes 81, second of the second four-way valve are successively passed through in second tunnel
80 common points 82 of four-way valve, the 66th pipeline 66,22 arrival end of second one-way valve, 22 outlet end of second one-way valve, the 5th
11 pipelines 51 are user's heating into user's heat exchanger 3, and refrigerant gas becomes liquid after releasing heat wherein, freezes
Agent liquid from user's heat exchanger 3 come out after, using third throttle mechanism 8 also enter the 54th pipeline 54；Two-way is the 5th
After the mixing of 14 pipelines 54, then successively pass through second throttle body 7, the second outdoor heat exchanger 5, the 67th pipeline 67, second
The normally opened node 84 of four-way valve 80,80 low pressure node 83 of the second four-way valve, the 65th pipeline 65, the 63rd pipeline 63；It returns again
It to 1 arrival end of compression mechanism, is re-compressed into compression mechanism 1, completes one cycle.
2) when the second outdoor heat exchanger 5 is by defrost, the first outdoor heat exchanger 4 is worked normally, and is absorbed heat from outdoor air
At this point, second throttle body 7,8 standard-sized sheet of third throttle mechanism, first throttle mechanism 6 is worked normally；First four-way valve
70 are failure to actuate, and still maintain state when heating function；
The switching of second four-way valve 80, the connected relation between four nodes are as follows: 80 high voltage nodes 81 of the second four-way valve with
The normally opened node 84 of second four-way valve 80 communicates, 80 common points 82 of the second four-way valve and 80 low pressure node of the second four-way valve, 83 phase
Logical
Its workflow is: after refrigerant is discharged from 1 outlet end of compression mechanism, being divided into two into the 60th pipeline 60
Road；The first via successively pass through the 60th pipeline 60,70 high voltage nodes 71 of the first four-way valve, 70 common points 72 of the first four-way valve,
61st pipeline 61,21 arrival end of the first check valve, 21 outlet end of the first check valve, the 51st pipeline 51, into user
Heat exchanger 3 is user's heating, and refrigerant gas becomes liquid after releasing heat wherein, and refrigerant liquid is from user's heat exchanger 3
After out, enter the 54th pipeline 54 by third throttle mechanism 8；The 60th pipeline the 60, the 50th is successively passed through on second tunnel
Nine pipelines 59,80 high voltage nodes 81 of the second four-way valve, the normally opened node 84 of the second four-way valve 80, the 67th pipeline 67, second Room
External heat exchanger 5, second throttle body 7 also enter the 54th pipeline 54；Two-way the 54th pipeline 54 mixing after, then according to
It is secondary by first throttle mechanism 6, the first outdoor heat exchanger 4, the 64th pipeline 64, the normally opened node 74 of the first four-way valve 70, the
One four-way valve, 70 low pressure node 73, the 65th pipeline 65, the 63rd pipeline 63；1 arrival end of compression mechanism is returned, is entered
Compression mechanism 1 is re-compressed, and completes one cycle.
(3) cooling in summer function
Compression mechanism 1, the first outdoor heat exchanger 4, the second outdoor heat exchanger 5, user's heat exchanger 3 all work normally；First
Outdoor heat exchanger 4, the second outdoor heat exchanger 5 are used as condenser, the condensation heat that discharge refrigeration generates into environment；User's heat exchanger
3 are used as evaporator, are user's cooling supply.
First throttle mechanism 6,7 standard-sized sheet of second throttle body；Third throttle mechanism 8 works normally；
12 standard-sized sheet of flow direction control valve
When work, 70 high voltage nodes 71 of the first four-way valve are communicated with the normally opened node 74 of the first four-way valve 70, the first four-way valve
70 common points 72 are communicated with 70 low pressure node 73 of the first four-way valve.Second four-way valve, 80 high voltage nodes 81 and the second four-way valve 80
Normally opened node 84 communicates, and 80 common points 82 of the second four-way valve are communicated with 80 low pressure node 83 of the second four-way valve.
Its workflow is: after refrigerant is discharged from 1 outlet end of compression mechanism, being divided into two into the 60th pipeline 60
Road；The first via successively pass through the 60th pipeline 60,70 high voltage nodes 71 of the first four-way valve, the normally opened node 74 of the first four-way valve 70,
64th pipeline 64, the first outdoor heat exchanger 4, first throttle mechanism 6, into the 54th pipeline 54；
The 60th pipeline 60, the 59th pipeline 59,80 high voltage nodes 81, second of the second four-way valve are successively passed through in second tunnel
The normally opened node 84 of four-way valve 80, the 67th pipeline 67, the second outdoor heat exchanger 5, second throttle body 7 also enter the 50th
Four pipelines 54；Two-way is after the mixing of the 54th pipeline 54, then successively passes through third throttle mechanism 8, user's heat exchanger the 3, the 5th
11 pipelines 51, flow direction control valve 12, and it is divided into two-way；
The first via successively passes through 24 arrival end of the 4th check valve, 24 outlet end of the 4th check valve, the 61st pipeline 61,
One four-way valve, 70 common points 72,70 low pressure node 73 of the first four-way valve, into the 65th pipeline 65；
23 arrival end of third check valve, 23 outlet end of third check valve, the 66th pipeline 66, are successively passed through in second tunnel
Two four-way valves, 80 common points 82,80 low pressure node 83 of the second four-way valve also enter the 65th pipeline 65；Two-way is the 60th
After the mixing of five pipelines 65,1 arrival end of compression mechanism is returned to using the 63rd pipeline 63, is pressed again into compression mechanism 1
One cycle is completed in contracting.
In the scheme of the above-mentioned all embodiments of the present invention, the first outdoor heat exchanger 4, the second outdoor heat exchanger 5 or user are changed
Any one in hot device 3 other than it can be refrigerant-air heat exchanger, be also possible to refrigerant-water- to-water heat exchanger or its
The heat exchanger of its type；When as refrigerant-water- to-water heat exchanger, volumetric heat exchanger, plate heat exchanger, shell-tube type heat exchange can be used
Any one in device or double pipe heat exchanger.In first outdoor heat exchanger 4, the second outdoor heat exchanger 5 or user's heat exchanger 3
When any one is as refrigerant-air heat exchanger, finned heat exchanger, the fin one of the finned heat exchanger are generallyd use
As be aluminum or aluminum alloy material, also use copper material in some special occasions.
In the scheme of the above-mentioned all embodiments of the present invention, first throttle mechanism 6, second throttle body 7, third throttle mechanism
One or more, even all throttle mechanisms in 8 can using with turn-off function throttle mechanism (such as: electronics
Expansion valve, brand can be any one in three flowers, shield peace, Japanese palace aigret, Danfoss, card pleasure etc.) it is substituted.
Claims (3)
1. a kind of three-way flow direction conversion device for refrigerant, including compression mechanism (1), the first four-way valve (70), the second four-way valve
(80), the first check valve (21), second one-way valve (22), it is characterized in that: the three-way flow direction conversion device for refrigerant further includes stream
To control valve (12), third check valve (23), the 4th check valve (24)；
The low pressure node (73) of first four-way valve (70) passes through the 65th pipeline (65) and second four-way valve (80)
Low pressure node (83) be connected, the high voltage nodes (71) of first four-way valve (70) pass sequentially through the 60th pipeline (60), pressure
Contracting mechanism (1) outlet end, compression mechanism (1) arrival end, the 63rd pipeline (63), the low pressure with first four-way valve (70)
The 65th pipeline (65) between node (73) and the low pressure node (83) of the second four-way valve (80) is connected, second four-way
The high voltage nodes (81) of valve (80) pass through the 59th pipeline (59) and the compression mechanism (1) outlet end and the first four-way valve
(70) the 60th pipeline (60) between high voltage nodes (71) is connected；
The common points (82) of second four-way valve (80) pass sequentially through the 66th pipeline (66), the second one-way valve
(22) arrival end, second one-way valve (22) outlet end, the first check valve (21) outlet end, the first check valve (21) arrival end,
61 pipelines (61) are connected with the common points (72) of first four-way valve (70)；
Pipeline and the 51st pipeline between first check valve (21) outlet end and second one-way valve (22) outlet end
(51) it is connected；
The normally opened node (74) of first four-way valve (70) is connected with the 64th pipeline (64)；
The normally opened node (84) of second four-way valve (80) is connected with the 67th pipeline (67)；
Third check valve (23) outlet end is connected with the 66th pipeline (66), third check valve (23) arrival end according to
It is secondary by the 4th check valve (24) arrival end, the 4th check valve (24) outlet end, be connected with the 61st pipeline (61)；
Described flow direction control valve (12) one end and the first check valve (21) outlet end and second one-way valve (22) outlet end it
Between pipeline be connected, flow direction control valve (12) other end and third check valve (23) arrival end and the 4th check valve
(24) pipeline between arrival end is connected.
2. three-way flow direction conversion device for refrigerant according to claim 1, it is characterised in that the flow direction control valve (12)
It is solenoid valve.
3. three-way flow direction conversion device for refrigerant according to claim 2, it is characterised in that the flow direction control valve (12)
It is normal-open electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910206989.4A CN110131928B (en) | 2019-03-10 | 2019-03-10 | Three-way flow direction switching device for refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910206989.4A CN110131928B (en) | 2019-03-10 | 2019-03-10 | Three-way flow direction switching device for refrigerant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110131928A true CN110131928A (en) | 2019-08-16 |
| CN110131928B CN110131928B (en) | 2024-08-27 |
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