CN110220324A - Four-way valve and air-conditioning system - Google Patents
Four-way valve and air-conditioning system Download PDFInfo
- Publication number
- CN110220324A CN110220324A CN201810169958.1A CN201810169958A CN110220324A CN 110220324 A CN110220324 A CN 110220324A CN 201810169958 A CN201810169958 A CN 201810169958A CN 110220324 A CN110220324 A CN 110220324A
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- Prior art keywords
- interface
- valve
- pilot valve
- way valve
- pilot
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
- F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention provides a kind of four-way valve and air-conditioning systems.The four-way valve is used for air-conditioning system, including main valve body (1) and the first pilot valve (2), main valve body (1) includes interface C, interface D, interface E and interface S, first pilot valve (2) includes interface C ', interface D ', interface E ' and interface S ', the interface C ' of first pilot valve (2) drives end by the first spool that the first signal pipe (3) are connected to main valve body (1), the interface E ' of first pilot valve (2) drives end by the second spool that second signal pipe (4) are connected to main valve body (1), the interface D ' of first pilot valve (2) is connected with third signal pipe (5), the other end of third signal pipe (5) is used for the pipeline being connected between the oil eliminator (16) of air-conditioning system and the exhaust outlet of compressor (14).Four-way valve according to the present invention can effectively avoid four-way valve four-way valve switching time longer problem due to caused by piston pressure at two ends balance in handoff procedure, guarantee the switching efficiency of four-way valve.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly to a kind of four-way valve and air-conditioning system.
Background technique
Four-way valve is arranged in heat pump type air conditioner system, for changing the flow direction of refrigerant, realizes refrigeration, heating switching
Purpose defrost is used for by four-way Vavle switching and when heating mould.
Four-way valve generally passes through pilot valve and is adjusted to the position of spool, pilot valve tool there are four interface, D ', E ', C ',
And S ', there are four interfaces for four-way valve tool, and D, E, C, S, wherein interface C ' is connected to the first valve of four-way valve by the first signal pipe
Core drives end, and interface E ' drives end by the second spool that second signal pipe is connected to four-way valve, and interface D ' passes through third signal
Pipe is connected to interface D, and interface S ' is connected at the port of interface S by fourth signal pipe.
When four-way Vavle switching, when piston is moved to cylinder interlude, tetra- interfaces of D, C, E, S are altered logical, and D interface pressure is quick
Decline balances D interface and S interface pressure, because of fourth signal pipe and S interface connection and passes through the first signal pipe connection to first
Spool drives end, third signal pipe and D interface connection and by second signal pipe connection to B chamber, will lead to piston pressure at two ends
Balance, keeps four-way valve switching time elongated, leads to unit low pressure difference alarming machine halt trouble.
Summary of the invention
The object of the present invention is to provide a kind of four-way valve and air-conditioning systems, effectively can avoid four-way valve in handoff procedure
The four-way valve switching time longer problem due to caused by piston pressure at two ends balance, guarantees the switching efficiency of four-way valve.
In order to solve the above technical problems, providing a kind of four-way valve as one aspect of the present invention, it to be used for air-conditioning system
System, including main valve body and the first pilot valve, main valve body include interface C, interface D, interface E and interface S, and the first pilot valve includes connecing
Mouth C ', interface D ', interface E ' and interface S ', the interface C ' of the first pilot valve are connected to the first of main valve body by the first signal pipe
Spool drives end, and the interface E ' of the first pilot valve is connected to the second spool driving end of main valve body by second signal pipe, and first
The interface D ' of pilot valve is connected with third signal pipe, and the other end of third signal pipe is used to be connected to the oil eliminator of air-conditioning system
On pipeline between the exhaust outlet of compressor.
Four-way valve of the invention, since the interface D ' of the first pilot valve is connected to the oil eliminator and compressor of air-conditioning system
Exhaust outlet between pipeline on, therefore when air-conditioning system defrost terminates to carry out the main valve body switching of four-way valve, press at D interface
Power decline, what is consumed first is the pressure of refrigerant in oil eliminator, the pressure of pipeline before oil eliminator and exhaust outlet of compressor
Power will not rapid decrease therewith, third signal pipe is communicated between oil eliminator and exhaust outlet of compressor on pipeline, can be kept away
The the first spool driving end and the second spool driving end for exempting from main valve body are conducive to piston and hold due to pressure balance caused by gas blowby
It is continuous to be moved to switching in place, guarantee the switching efficiency of four-way valve.
Detailed description of the invention
Fig. 1 diagrammatically illustrates the structure principle chart of the air-conditioning system of the embodiment of the present invention；
Fig. 2 diagrammatically illustrates the working principle diagram of the air-conditioning system of first embodiment of the invention；
Fig. 3 diagrammatically illustrates the working principle diagram of the air-conditioning system of second embodiment of the invention.
1, main valve body；2, the first pilot valve；3, the first signal pipe；4, second signal pipe；5, third signal pipe；6, the 4th letter
Number pipe；7, the 5th signal pipe；8, the 6th signal pipe；9, the 7th signal pipe；10, the 8th signal pipe；11, the second pilot valve；12, room
Interior heat exchanger；13, outdoor heat exchanger；14, compressor；15, throttling set；16, oil eliminator；17, four-way valve；18, liquid storage device；
19, the first check valve；20, second one-way valve；21, third check valve；22, the 4th check valve；23, device for drying and filtering；24, gas-liquid
Separator.
Specific embodiment
The embodiment of the present invention is described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
In conjunction with referring to shown in Fig. 1 to Fig. 3, according to an embodiment of the invention, four-way valve is used for air-conditioning system, the four-way valve packet
Main valve body 1 and the first pilot valve 2 are included, main valve body 1 includes interface C, interface D, interface E and interface S, and the first pilot valve 2 includes connecing
The interface C ' of mouth C ', interface D ', interface E ' and interface S ', the first pilot valve 2 are connected to main valve body 1 by the first signal pipe 3
First spool drives end, and the interface E ' of the first pilot valve 2 is connected to the second spool driving of main valve body 1 by second signal pipe 4
End, the interface D ' of the first pilot valve 2 are connected with third signal pipe 5, and the other end of third signal pipe 5 is for being connected to air-conditioning system
Oil eliminator 16 and compressor 14 exhaust outlet between pipeline on.
Four-way valve of the invention, since the interface D ' of the first pilot valve 2 is connected to the oil eliminator 16 and pressure of air-conditioning system
On pipeline between the exhaust outlet of contracting machine 14, therefore when air-conditioning system defrost terminates to carry out the main valve body switching of four-way valve, D is connect
Pressure decline at mouthful, what is consumed first is the pressure of refrigerant in oil eliminator 16, the exhaust of oil eliminator 16 and compressor 14
Before mouthful the pressure of pipeline will not rapid decrease therewith, third signal pipe 5 is communicated to the row of oil eliminator 16 Yu compressor 14
On pipeline between port, the first spool driving end and the second spool driving end that can be avoided main valve body 1 are led due to gas blowby
The pressure balance of cause is conducive to piston and is persistently moved to switching in place, guarantees the switching efficiency of four-way valve.
Preferably, interface C, interface D, interface E and interface S arrange in cross；And/or interface C ', interface D ', interface
E ' and interface S ' arranges in cross.
In conjunction with shown in Figure 2, first embodiment according to the present invention, the first pilot valve 2 is solenoid valve, can be by the
One pilot valve 2 controls the state switching of main valve body 1, controls simple and convenient.Electromagnetism is adjusted to due to the first pilot valve 2
It adjusts, therefore not will receive the influence of refrigerant pressure, can be improved adjusting efficiency.
In conjunction with shown in Figure 3, second embodiment according to the present invention, four-way valve further includes the second pilot valve 11, and second
Pilot valve 11 is used to control the spool position of the first pilot valve 2.
Second pilot valve 11 is solenoid valve, and the first pilot valve 2 is pilot operated valve device, and controls the first guide by the second pilot valve 11
The spool position of valve 2, the second pilot valve 11 include interface C ", interface D ", interface E " and interface S ", the interface of the second pilot valve 11
C " drives end by the first spool that the 5th signal pipe 7 is connected to the first pilot valve 2, and the interface E " of the second pilot valve 11 passes through the
Six signal pipes 8 are connected to the second spool driving end of the first pilot valve 2, and the interface S " of the second pilot valve 11 passes through the 8th signal pipe
10 are connected to the interface S ' of the first pilot valve 2.
Preferably, the interface D " of the second pilot valve 11 is connected to the D ' of the first pilot valve 2 by the 7th signal pipe 9；Or, the
The interface D " of two pilot valves 11 is used to be connected to the oil eliminator 16 of air-conditioning system and the row of compressor 14 by the 7th signal pipe 9
On pipeline between port.When the interface D " of the second pilot valve 11 is used to be connected to the oil of air-conditioning system by the 7th signal pipe 9
When on the pipeline between separator 16 and the air entry of compressor 14, due to the first pilot valve 2 also with refrigerant pressure to valve
The position of core is adjusted, and the interface D ' of the interface D " of the second pilot valve 11 and the first pilot valve 2 jointly with compressor 14
Exhaust outlet connection, without being connected to the D interface of main valve body 1, it may therefore be assured that two hydraulic-driven ends of the first pilot valve 2
Internal pressure will not be connected to and the pressure at two ends of the first pilot valve 2 is caused to balance, and the piston of the first pilot valve 2 is held
It is continuous to be moved to switching in place, guarantee the smooth switching of four-way valve.
In conjunction with referring to shown in Fig. 1 to Fig. 3, according to an embodiment of the invention, air-conditioning system include indoor heat exchanger 12, it is outdoor
Heat exchanger 13, compressor 14, throttling set 15, oil eliminator 16, gas-liquid separator 24 and four-way valve 17, the four-way valve 17 are upper
The four-way valve stated, one end of the third signal pipe 5 of four-way valve 17 are connected to the interface D ' of the first pilot valve 2, and the other end is connected to
On pipeline between oil eliminator 16 and the exhaust outlet of compressor 14.
In the present embodiment, air-conditioning system further includes liquid storage device 18, the first check valve 19, second one-way valve 20, third list
To valve 21 and the 4th check valve 22, wherein the first check valve 19 and third check valve 21 form the first series pipe, second is unidirectional
Valve 20 and the 4th check valve 22 form the second series pipe, and the first series pipe and the second series pipe are in parallel, outdoor heat exchanger
13 are connected between the first check valve 19 and the 4th check valve 22, and indoor heat exchanger 12 is connected to second one-way valve 20 and third list
To between valve 21, the air inlet of liquid storage device 18 is connected between the first check valve 19 and second one-way valve 20, the liquid of liquid storage device 18
Body outlet is connected between third check valve 21 and the 4th check valve 22.Liquid storage device 18 can receive from condenser condensing heat-exchange it
Gaseous state, liquid or mixing refrigerant afterwards, are then discharged liquid refrigerants from the liquid outlet of liquid storage device 18, guarantee the liquefaction effect of refrigerant
Fruit guarantees that the refrigerant being discharged from liquid storage device 18 for pure liquid refrigerants, improves the energy storage effect of refrigerant, improves the heat exchange amount of refrigerant,
Improve the refrigeration or heating effect of refrigerant.
Due to the presence of four check valves, when air-conditioning system is in refrigerating state, when refrigerant is flowed from outdoor heat exchanger 13
It after out, can enter in liquid storage device 18 by wherein the first check valve 19 from the air inlet of liquid storage device 18, make in the pressure of refrigerant
Under, the liquid refrigerants in liquid storage device 18 is flowed out from the liquid outlet of liquid storage device 18, flows to interior through third check valve 21
It exchanges heat in heat exchanger 12, freezes to interior, the refrigerant after being exchanged heat with indoor heat exchanger 12 is through four-way valve
After interface E and interface S, gas-liquid separation is carried out in gas-liquid separator 24, is back to the air entry of compressor 14 later.In air-conditioning
When system is in heating state, refrigerant initially enters indoor heat exchanger 12, is changed in heat exchanger 12 with room air indoors
Heat heats room air, can be by wherein second one-way valve 20 from storage after refrigerant is flowed out from indoor heat exchanger 12
The air inlet of liquid device 18 enters in liquid storage device 18, and under the pressure effect of refrigerant, liquid refrigerants in liquid storage device 18 is from liquid storage device
18 liquid outlet outflow, flows in outdoor heat exchanger 13 through the 4th check valve 22 and exchanges heat, with outdoor heat exchanger 13
Refrigerant after being exchanged heat carries out gas-liquid separation, later after the interface C of four-way valve and interface S in gas-liquid separator 24
It is back to the air entry of compressor 14.
The liquid outlet tube road of liquid storage device 18 is provided with device for drying and filtering 23 and solenoid valve, can be to from 18 row of liquid storage device
Filtering is dried in liquid refrigerants out, avoids carrying other impurity in refrigerant flow process, guarantees the clarity of refrigerant, mention
Heat exchange efficiency between high refrigerant and heat exchanger.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of four-way valve is used for air-conditioning system, which is characterized in that including main valve body (1) and the first pilot valve (2), the master
Valve body (1) includes that interface C, interface D, interface E and interface S, first pilot valve (2) include interface C ', interface D ', interface E '
The first of the main valve body (1) is connected to by the first signal pipe (3) with the interface C ' of interface S ', first pilot valve (2)
Spool drives end, and the interface E ' of first pilot valve (2) is connected to the of the main valve body (1) by second signal pipe (4)
Two spools drive end, and the interface D ' of first pilot valve (2) is connected with third signal pipe (5), the third signal pipe (5)
The other end is used for the pipeline being connected between the oil eliminator (16) of air-conditioning system and the exhaust outlet of compressor (14).
2. four-way valve according to claim 1, which is characterized in that first pilot valve (2) is solenoid valve.
3. four-way valve according to claim 1, which is characterized in that the four-way valve further includes the second pilot valve (11), institute
The second pilot valve (11) are stated for controlling the spool position of first pilot valve (2).
4. four-way valve according to claim 3, which is characterized in that second pilot valve (11) is solenoid valve, described the
Two pilot valves (11) include interface C ", interface D ", interface E " and interface S ", and the interface C " of second pilot valve (11) passes through the
Five signal pipes (7) are connected to the first spool driving end of first pilot valve (2), the interface E " of second pilot valve (11)
End is driven by the second spool that the 6th signal pipe (8) is connected to first pilot valve (2), second pilot valve (11)
Interface S " is connected to the interface S ' of first pilot valve (2) by the 8th signal pipe (10).
5. four-way valve according to claim 4, which is characterized in that the interface D " of second pilot valve (11) passes through the 7th
Signal pipe (9) is connected to the D ' of first pilot valve (2)；Or, the interface D " of second pilot valve (11) is used for by the
Seven signal pipes (9) are connected on the pipeline between the oil eliminator (16) of air-conditioning system and the exhaust outlet of compressor (14).
6. four-way valve according to claim 1, which is characterized in that interface C, interface D, interface E and interface S are arranged in cross
Cloth；And/or interface C ', interface D ', interface E ' and interface S ' arrange in cross.
7. a kind of air-conditioning system, including indoor heat exchanger (12), outdoor heat exchanger (13), compressor (14), throttling set (15),
Oil eliminator (16) and four-way valve (17), which is characterized in that the four-way valve (17) is described in any one of claims 1 to 6
Four-way valve, one end of the third signal pipe (5) of the four-way valve (17) is connected to the interface D ' of first pilot valve (2),
The other end is connected on the pipeline between the oil eliminator (16) and the exhaust outlet of the compressor (14).
8. air-conditioning system according to claim 7, which is characterized in that the air-conditioning system further includes liquid storage device (18),
One check valve (19), second one-way valve (20), third check valve (21) and the 4th check valve (22), wherein the first check valve (19)
The first series pipe is formed with third check valve (21), second one-way valve (20) and the 4th check valve (22) form the second tandem tube
Road, the first series pipe and the second series pipe are in parallel, and the outdoor heat exchanger (13) is connected to first check valve (19)
Between the 4th check valve (22), the indoor heat exchanger (12) is connected to the second one-way valve (20) and the third
Between check valve (21), the air inlet of the liquid storage device (18) is connected to first check valve (19) and the second one-way valve
(20) between, the liquid outlet of the liquid storage device (18) is connected to the third check valve (21) and the 4th check valve (22)
Between.
9. air-conditioning system according to claim 8, which is characterized in that the liquid outlet tube road of the liquid storage device (18) is set
It is equipped with device for drying and filtering (23) and solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810169958.1A CN110220324B (en) | 2018-03-01 | 2018-03-01 | Four-way valve and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810169958.1A CN110220324B (en) | 2018-03-01 | 2018-03-01 | Four-way valve and air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110220324A true CN110220324A (en) | 2019-09-10 |
| CN110220324B CN110220324B (en) | 2021-08-31 |
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ID=67821765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810169958.1A Active CN110220324B (en) | 2018-03-01 | 2018-03-01 | Four-way valve and air conditioning system |
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| Country | Link |
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| CN (1) | CN110220324B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7191604B1 (en) * | 2004-02-26 | 2007-03-20 | Earth To Air Systems, Llc | Heat pump dehumidification system |
| CN202612713U (en) * | 2012-06-30 | 2012-12-19 | 浙江盾安禾田金属有限公司 | Electromagnetic directional valve |
| CN102901259A (en) * | 2012-10-31 | 2013-01-30 | 南京五洲制冷集团有限公司 | Double-machine double-stage compression refrigeration unit |
| CN104266416A (en) * | 2014-09-29 | 2015-01-07 | 特灵空调***(中国)有限公司 | Multi-split air conditioner throttling and super-cooling control mechanism |
| CN104832679A (en) * | 2015-05-15 | 2015-08-12 | 浙江三花制冷集团有限公司 | Refrigerating system and solenoid operated four-way valve thereof |
| CN106352111A (en) * | 2015-07-15 | 2017-01-25 | 浙江盾安禾田金属有限公司 | Electromagnetic pilot type three-way valve and air conditioning system |
-
2018
- 2018-03-01 CN CN201810169958.1A patent/CN110220324B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7191604B1 (en) * | 2004-02-26 | 2007-03-20 | Earth To Air Systems, Llc | Heat pump dehumidification system |
| CN202612713U (en) * | 2012-06-30 | 2012-12-19 | 浙江盾安禾田金属有限公司 | Electromagnetic directional valve |
| CN102901259A (en) * | 2012-10-31 | 2013-01-30 | 南京五洲制冷集团有限公司 | Double-machine double-stage compression refrigeration unit |
| CN104266416A (en) * | 2014-09-29 | 2015-01-07 | 特灵空调***(中国)有限公司 | Multi-split air conditioner throttling and super-cooling control mechanism |
| CN104832679A (en) * | 2015-05-15 | 2015-08-12 | 浙江三花制冷集团有限公司 | Refrigerating system and solenoid operated four-way valve thereof |
| CN106352111A (en) * | 2015-07-15 | 2017-01-25 | 浙江盾安禾田金属有限公司 | Electromagnetic pilot type three-way valve and air conditioning system |
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| Publication number | Publication date |
|---|---|
| CN110220324B (en) | 2021-08-31 |
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