CN107289152B - A kind of four-way reversing valve and its pilot valve - Google Patents
A kind of four-way reversing valve and its pilot valve Download PDFInfo
- Publication number
- CN107289152B CN107289152B CN201610225287.7A CN201610225287A CN107289152B CN 107289152 B CN107289152 B CN 107289152B CN 201610225287 A CN201610225287 A CN 201610225287A CN 107289152 B CN107289152 B CN 107289152B
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- station
- pipeline
- low pressure
- spring
- pressure line
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/0655—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with flat slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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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
Abstract
The invention discloses a kind of four-way reversing valve and its pilot valves, including pressure duct A, low pressure line C and the first switching pipeline B and the second switching pipeline D, in the first station, the pressure duct A is connected to the second switching pipeline D, the low pressure line C is connected to the first switching pipeline B, in second station, the pressure duct A is connected to the first switching pipeline B, the low pressure line C is connected to the second switching pipeline D, it is characterized in that, also there is 3rd station, in 3rd station, the pressure duct A is connected to low pressure line C.The pressure of the four-way reversing valve and its pilot valve energy Fast-Balance system high pressure side and low-pressure side is made system be in equal pressure condition, and then reaches the purpose of being defrosted using high temperature refrigerant without switch operating state.
Description
Technical field
It the present invention relates to the use of refrigerant to be freezed or heated technical field, especially air-conditioning, compressor, refrigerator, heat
Four-way reversing valve used in the systems such as hydrophone and its pilot valve.
Background technique
Four-way reversing valve is mainly used in the systems such as heat pump air conditioner, water heater, and refrigerant channel cuts in Lai Shixian system
It changes, and then realizes the functions such as whole system refrigeration, heating, defrosting.
Guide's valve member is one of important composition component of four-way reversing valve, is commutated for main valve body, is other components
The required basis of normal work building, to realize every basic function of four-way reversing valve.
As shown in Figure 1, the pilot valve of existing four-way reversing valve, in coil no power, core iron and end socket disengage, high-voltage tube
Road A (system high pressure side) is communicated with the second switching pipeline D, and low pressure line C (system low-voltage side) is communicated with the first switching pipeline B,
When the coil is energized, core iron is bonded with end socket, and pressure duct A (system high pressure side) is communicated with the first switching pipeline B, low pressure line
C (system low-voltage side) is communicated with the second switching pipeline D.
Such pilot valve is powered using coil, power-off control core iron is bonded with end socket and is disengaged, and four-way reversing valve master is controlled
Vavle switching, and then change refrigerant flow direction in air-conditioning system, realize air conditioner refrigerating heat-production functions.
Existing pilot valve and four-way reversing valve can only realize two station working conditions, when system being caused to work, exist always
High-pressure side and low-pressure side.Such as air-conditioning system, only have and freezes and heat two states, when winter conditions temperature is lower, system
It is in heating state for a long time, the solidifying frost of heat exchanger of outdoor unit surface generation can be caused, the heating of system is imitated when coagulating frost excessively
There are extreme influences for rate.At this moment, pilot valve electromagnetic coil powers off, and system is switched to refrigerating state, high temperature and pressure refrigerant is allowed first to flow
Through outdoor heat exchanger, medium temperature and medium pressure refrigerant is formed, so that outdoor heat exchanger surface is coagulated frost using the partial heat and melts, it is then electric
Magnetic coil is powered, and system is switched to heating state again.
When needing defrost due to outdoor unit heat exchanger surface, system needs to be switched to refrigerating state by heating state, if
Room or office space sound insulation are poor, and people can clearly hear the noise of generation, and come to the surface in outdoor unit heat exchanger
In white this period, air conditioner indoor unit does not blow out hot wind, it means that the temperature of room or office space can be reduced constantly, centainly
Degree affects the comfort level of people.
Therefore, the structure of pilot valve and four-way reversing valve how is improved, is this field skill with further lifting system performance
Art personnel's technical issues that need to address.
Summary of the invention
The first object of the present invention is to provide a kind of pilot valve.The pilot valve energy Fast-Balance system high pressure side and low-pressure side
Pressure, so that system is in equal pressure condition, and then reach and can defrost using high temperature refrigerant without switch operating state
The purpose of.
The second object of the present invention is to provide a kind of four-way reversing valve equipped with the pilot valve.
The third object of the present invention is to provide a kind of four-way reversing valve of the main valve body with uniform voltage function.
To realize that above-mentioned first purpose, the present invention provide a kind of pilot valve, it to be used for four-way reversing valve, including pressure duct,
Low pressure line and the first switching pipeline and the second switching pipeline, in the first station, the pressure duct and the second switching pipeline
Connection, the low pressure line and the first switching pipeline connection, in second station, the pressure duct and the first switching pipeline connect
It is logical, the low pressure line and the second switching pipeline connection, also with 3rd station, in 3rd station, the pressure duct and the
One switching pipeline and low pressure line connection.
Preferably, including valve component, core assembly, core iron component and coil block, the spring of the core iron component
Including the first spring and second spring, in the first station, the coil block no power, first spring is in precommpression shape
State, the second spring are in free state, can be along being free to move axially, and in second station, the coil block leads to low electricity
Pressure, first spring continues to compress, and the second spring is not compressed, and can not be along being free to move axially；In 3rd station,
The coil block leads to high voltage, and first spring continues to compress, and the second spring is in compressive state.
Preferably, first spring arranges that the second spring is set in institute along the axis direction of the core iron component
It states on the core iron and/or end socket of core iron component, the core iron and/or end socket are equipped with the boss for supporting the second spring.
Preferably, the second spring arranges that first spring is set in institute along the axis direction of the core iron component
It states on the core iron and/or end socket of core iron component, the core iron and/or end socket are equipped with the boss for supporting first spring.
Preferably, in 3rd station, the pressure duct switches pipeline connection, institute with the low pressure line and first simultaneously
It states the second switching pipeline and is in off state.
Preferably, in 3rd station, the pressure duct is cut with the low pressure line, the first switching pipeline and second simultaneously
Change pipeline connection.
Preferably, the pressure duct and low pressure line are connected by being located at outside pilot valve and being equipped with the pipeline of control valve
It connects, in the first, second station, the control valve is disconnected, and obstructs the pressure duct and low pressure line, described in 3rd station
Control valve conducting, is connected to the pressure duct with low pressure line.
To realize that above-mentioned second purpose, the present invention provide a kind of four-way reversing valve, including main valve body and pilot valve, the elder generation
Pilot valve is pilot valve described in any of the above embodiments.
To realize above-mentioned third purpose, the present invention provides another four-way reversing valve, and main valve body includes pressure duct, low
Pressure pipe road and the first switching pipeline and the second switching pipeline, in the first station, the pressure duct and the second switching pipeline connect
It is logical, the low pressure line and the first switching pipeline connection, in second station, the pressure duct and the first switching pipeline connection,
The low pressure line and the second switching pipeline connection, which is characterized in that also there is 3rd station, in 3rd station, the high pressure
Pipeline is connected to low pressure line.
Preferably, the pressure duct and low pressure line are connected by being located at outside main valve body and being equipped with the pipeline of control valve
It connects, in the first, second station, the control valve is disconnected, and obstructs the pressure duct and low pressure line, described in 3rd station
Control valve conducting, is connected to the pressure duct with low pressure line.
Pilot valve provided by the present invention is further improved on the basis of existing technology, from can only realize two before
Station functional shift is that can be realized three station functions, under increased 3rd station state, pressure duct and low pressure line
Connection, can fast implement system high pressure side and press with low-pressure side, so that system is in equal pressure condition, to realize specific purpose.Example
As within air-conditioning systems, when this pilot valve be in 3rd station, the high temperature and pressure refrigerant of compressor output can be guided to being
System low-pressure side, realizes system high pressure side and low-pressure lateral pressure Fast-Balance, and then flow through outdoor heat exchanger using high temperature refrigerant,
Frost is coagulated on outdoor heat exchanger surface to melt, compared with present air-conditioning system, when outdoor environment temperature is lower, people are for a long time
Using air-conditioning heating, when heat exchanger of outdoor unit surface forms solidifying frost, four-way reversing valve electromagnetic coil does not need to power off, system without
Refrigerating state need to be switched to, it is only necessary to which pilot valve switches to 3rd station, realizes the equal pressure condition of system, i.e., using high temperature refrigerant
The solidifying frost for melting heat exchanger of outdoor unit surface, can be improved system heating efficiency, while can be good at maintaining indoor ring
Border temperature provides more comfortable living environment and working environment for people.
Four-way reversing valve provided by the present invention is equipped with the pilot valve, since the pilot valve has above-mentioned technique effect,
Then the four-way reversing valve equipped with the pilot valve should also have corresponding technical effect.
Another kind four-way reversing valve provided by the present invention uses the design principle essentially identical with above-mentioned pilot valve,
Can also pressure duct be made to be connected to low pressure line in use process, therefore also technical effect having the same.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing four-way reversing valve pilot valve；
Fig. 2 is a kind of structural schematic diagram of specific embodiment of four-way reversing valve pilot valve provided by the present invention；
Fig. 3 is pipeline conducting schematic when pilot valve shown in Fig. 2 is in the first station；
Fig. 4 is pipeline conducting schematic when pilot valve shown in Fig. 2 is in second station；
Fig. 5 is pipeline conducting schematic when pilot valve shown in Fig. 2 is in 3rd station；
Fig. 6 is the structural schematic diagram of another specific embodiment of four-way reversing valve pilot valve provided by the present invention；
Fig. 7 is the four-way reversing valve that main valve body provided by the present invention has uniform voltage function.
In figure:
1. 3. core iron component of valve component 11. casing, 12. valve seat, 2. core assembly, 21. spool, 31. core iron 32.
33. first spring of end socket, 34. second spring, 4. coil block 5,5'. control valve 6,7. main valve body of 6'. pipeline, 8. guide
Valve
Specific embodiment
Core of the invention be by improve four-way reversing valve pilot valve or main valve body, enable its pressure duct with
Low pressure line is connected, and presses to fast implement system high pressure side with low-pressure side, so that system is in equal pressure condition, to reach not
Switching system working condition does not influence the purpose of being defrosted in the case where use.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Referring to FIG. 2, the structure that Fig. 2 is a kind of specific embodiment of four-way reversing valve pilot valve provided by the present invention is shown
It is intended to.
In a specific embodiment, pilot valve provided by the invention is mainly by valve component 1, core assembly 2, core iron group
The part such as part 3 and coil block 4 is constituted, and is used to control main valve of four-way reversing valve switching, and then refrigerant stream in change system
The functions such as refrigeration, heating, defrosting are realized in dynamic direction.
In tubular construction, the left end that pressure duct A is located at casing 11 (can also be located at side to the casing 11 of valve component 1
On wall), it is connected to 11 inner cavity of casing, is welded with small valve seat 12 in the inner cavity of casing 11 on inner wall, is set on small valve seat 12
There are three valve ports, are connected to respectively with low pressure line C, the first switching pipeline B and the second switching pipeline D, the valve port position of low pressure line C
Between the first switching pipeline B and the valve port of the second switching pipeline D, the spool 21 (being as shown in the figure small slide bowl) of core assembly 2
The valve port position for being pressed on small valve seat 12 in a manner of fitting under the elastic force effect of elastomeric element can after coil block 4 is powered
The core iron 31 of driving core iron component 3 moves right, thus it is mobile to 32 direction of end socket with movable valve plug 21, it is in pilot valve successively
Different stations.
The spring of core iron component 3 includes the first spring 33 and second spring 34, wherein the first spring 33 is along core iron component
Axis direction arrangement, 31 right end of core iron offer the through-hole for accommodating the first spring 33, and one end of the first spring 33 is supported on through-hole
On internal step, the other end is supported on end socket 32, and second spring 34 is set in outside the core iron of core iron component, and core iron 31 exists
Boss is machined in its outer circle, in compression, one end is supported on boss second spring 34, and the other end is supported on end socket 32
On, the rigidity and material of two springs can specifically design determination according to the operating pressure of system for use in carrying.
First spring 33 and the mounting means of second spring 34 can also may be used other than aforesaid way there are many form
A part of second spring 34 to be sleeved on core iron 31, another part is sleeved on end socket 32, i.e., second spring 34 is simultaneously
It is sleeved on core iron 31 and end socket 32, second spring 34 can also be only sleeved on end socket 32, moreover, on core iron 31 and end socket 32
The boss of support second spring 34 can be both set simultaneously, the convex of support second spring 34 can also be individually set on end socket 32
Platform.
In addition, the position of above-mentioned first spring 33 and second spring 34 can be interchanged as a kind of possible mode, i.e.,
Two springs 34 arrange that the first spring 33 is set in the core iron 31 and/or end socket 32 of core iron component along the axis direction of core iron component
On, and setting supports the boss of the first spring 33 on core iron 31 and/or end socket 32.
Fig. 3, Fig. 4, Fig. 5 are please referred to, Fig. 3 is pipeline conducting schematic when pilot valve shown in Fig. 2 is in the first station；Figure
4 are in pipeline conducting schematic when second station for pilot valve shown in Fig. 2；Fig. 5 is that pilot valve shown in Fig. 2 is in 3rd station
When pipeline conducting schematic.
As shown in Fig. 2, the present invention increases second spring 34, in coil block 4 by designing boss structure on core iron 31
Under logical different voltages, core iron operating position is controlled using two springs, three station functions of guide's valve member may be implemented, thirdly
Station working condition is specific as follows:
First station, coil no power, the first spring 33 are in pre-compressed state, and second spring 34 is in free state,
Can be in casing 11 along being free to move axially, the runner connection low pressure line C and first of spool 21 switches the valve of pipeline B at this time
Mouthful, and the valve port of the second switching pipeline D is discharged, pressure duct A (system high pressure side) is communicated with the second switching pipeline D, low
Pressure pipe road C (system low-voltage side) is communicated with the first switching pipeline B.
Second station, coil lead to low-voltage, and spool 21 moves right, and the first spring 33 continues to compress, and second spring 34 is not
Compression, core iron 31 is not bonded with end socket 32, but the boss on core iron 31 is bonded with second spring 34, at this point, second spring 34 is not
It can be free to move axially along casing, the valve port of the runner of spool 21 switching of connection low pressure line C and second pipeline D, and discharge the
The valve port of one switching pipeline B, pressure duct A (system high pressure side) are communicated with the first switching pipeline B, low pressure line C (system low-voltage
Side) it is communicated with the second switching pipeline D.
3rd station, coil lead to high voltage, and spool 21 continues to move right, and the first spring 33 continues to compress, at this point, second
Spring 34 is also at compressive state, and core iron 31 is bonded with end socket 32, and spool 21 only seals the valve port of the second switching pipeline D, and releases
The valve port for putting the first switching pipeline B and low pressure line C makes pressure duct A (system high pressure side) and low pressure line C (system low-voltage
Side) directly communicate, realize that air-conditioning system is pressed, i.e., the pressure of hasten fastly balance system high-pressure side and low-pressure side.
In 3rd station, if the amplitude that spool 21 moves right is larger, low pressure line C can be discharged simultaneously, first is cut
The valve port for changing the switching of pipeline B and second pipeline D cuts pressure duct A with low pressure line C, the first switching pipeline B and second simultaneously
Change pipeline D connection.
Above-mentioned three station acts guide's valve member, compares existing pilot valve modular construction, increases second spring 34, utilizes
First spring 33 and second spring 34 control 31 work station of core iron, increase a station working condition, when the logical height of coil block
When voltage, pressure duct A (system high pressure side) is communicated with low pressure line C (system low-voltage side), can with Fast-Balance high-pressure side and
The pressure of low-pressure side realizes system uniform voltage function, and then the case where reach not switching system working condition, do not influence normal use
Under the purpose of being defrosted, can be widely applied in the systems such as air-conditioning, compressor, refrigerator, water heater.
Referring to FIG. 6, Fig. 6 is the structure of another specific embodiment of four-way reversing valve pilot valve provided by the present invention
Schematic diagram.
As shown, can also realize pressure duct A and low-voltage tube in outside other than improving pilot valve internal structure
The connection of road C, concrete mode are that pressure duct A and low pressure line C are by being located at outside pilot valve and being equipped with control valve 5
Pipeline 6 connects, and in the first, second station, control valve 5 is disconnected, barrier pressure duct A and low pressure line C, in 3rd station, control
Valve 5 processed is connected, and is connected to pressure duct A with low pressure line C, such pilot valve equally can be realized the object of the invention.
In addition to above-mentioned pilot valve, the present invention also provides a kind of four-way reversing valves comprising main valve body and pilot valve two parts,
Wherein pilot valve is using pilot valve above, and refer to the prior art for remaining structure, and repeats no more herein.
Referring to FIG. 7, Fig. 7 is the four-way reversing valve that main valve body provided by the present invention has uniform voltage function.
Another kind four-way reversing valve provided by the invention, is mainly made of main valve body 7 and 8 two parts of pilot valve, wherein leading
Valve body 7 include pressure duct A', low pressure line C' and first switching pipeline B' and second switching pipeline D', pressure duct A' with
Low pressure line C' equally has the function of three stations by being located at main valve body outside and equipped with the pipeline 6' connection of control valve 5',
Each station working condition is specific as follows:
First station, control valve 5' are disconnected, barrier pressure duct A' and low pressure line C', the switching of pressure duct A' and second
Pipeline D' connection, low pressure line C' are connected to the first switching pipeline B'；Second station, control valve 5' are still disconnected, and obstruct high pressure
Pipeline A' and low pressure line C', pressure duct A' are connected to the first switching pipeline B', the switching of low pressure line C' and second pipeline D'
Connection；3rd station, on the basis of second station, control valve 5' conducting is connected to pressure duct A' with low pressure line C', can
It fast implements high-pressure side and is pressed with low-pressure side, system is made to be in equal pressure condition.
Above-described embodiment is only preferred embodiment of the invention, is specifically not limited thereto, on this basis can be according to reality
It needs to make to have and targetedly adjust, to obtain different embodiments.For example, by the pressure duct A of pilot valve with it is low
The location swap etc. of pressure pipe road C.Since mode in the cards is more, just no longer illustrate one by one here.
Four-way reversing valve provided by the present invention and its pilot valve are described in detail above.Tool used herein
Principle and implementation of the present invention are described for body example, the above embodiments are only used to help understand this hair
Bright core concept.It should be pointed out that for those skilled in the art, before not departing from the principle of the invention
It puts, can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the guarantor of the claims in the present invention
It protects in range.
Claims (8)
1. a kind of pilot valve, it to be used for four-way reversing valve, including pressure duct A, low pressure line C and the first switching pipeline B and the
Two switching pipeline D, in the first station, the pressure duct A is connected to the second switching pipeline D, and the low pressure line C is cut with first
Pipeline B connection is changed, in second station, the pressure duct A is connected to the first switching pipeline B, and the low pressure line C is cut with second
Change pipeline D connection, which is characterized in that also there is 3rd station, in 3rd station, the switching of the pressure duct A and first pipeline B
And low pressure line C connection；It is described including valve component (1), core assembly (2), core iron component (3) and coil block (4)
Core iron component (3) drives the core assembly (2) is mobile to be successively in each station；The spring of the core iron component (3) includes the
One spring (33) and second spring (34), in the first station, coil block (4) no power, at first spring (33)
In pre-compressed state, the second spring (34) is in free state, can be described in second station along being free to move axially
Coil block (4) leads to low-voltage, and first spring (33) continues to compress, and the second spring (34) is not compressed, and can not
Edge is free to move axially；In 3rd station, the coil block (4) leads to high voltage, and first spring (33) continues to compress, institute
It states second spring (34) and is in compressive state.
2. pilot valve according to claim 1, which is characterized in that first spring (33) is along the core iron component (3)
Axis direction arrangement, the second spring (34) is set in the core iron (31) and/or end socket (32) of the core iron component (3)
On, the core iron (31) and/or end socket (32) are equipped with the boss for supporting the second spring (34).
3. pilot valve according to claim 1, which is characterized in that the second spring (34) is along the core iron component (3)
Axis direction arrangement, first spring (33) is set in the core iron (31) and/or end socket (32) of the core iron component (3)
On, the core iron (31) and/or end socket (32) are equipped with the boss for supporting first spring (33).
4. pilot valve according to any one of claims 1 to 3, which is characterized in that in 3rd station, the pressure duct A
It is connected to simultaneously with the switching of the low pressure line C and first pipeline B, the second switching pipeline D is in off state.
5. pilot valve according to any one of claims 1 to 3, which is characterized in that in 3rd station, the pressure duct A
It is connected to simultaneously with the low pressure line C, the first switching pipeline B and the second switching pipeline D.
6. a kind of pilot valve, it to be used for four-way reversing valve, including pressure duct A, low pressure line C and the first switching pipeline B and the
Two switching pipeline D, in the first station, the pressure duct A is connected to the second switching pipeline D, and the low pressure line C is cut with first
Pipeline B connection is changed, in second station, the pressure duct A is connected to the first switching pipeline B, and the low pressure line C is cut with second
Change pipeline D connection, which is characterized in that also there is 3rd station, in 3rd station, the switching of the pressure duct A and first pipeline B
And low pressure line C connection；The pressure duct A and low pressure line C is by being located at outside pilot valve and being equipped with control valve (5)
Pipeline (6) connection, in the first, second station, the control valve (5) is disconnected, and obstructs the pressure duct A and low pressure line C,
3rd station, control valve (5) conducting, is connected to the pressure duct A with low pressure line C.
7. a kind of four-way reversing valve, including main valve body (7) and pilot valve (8), which is characterized in that the pilot valve (8) is above-mentioned
Pilot valve as claimed in any one of claims 1 to 6.
8. a kind of four-way reversing valve, main valve body (7) include pressure duct A', low pressure line C' and the first switching pipeline B' and
Second switching pipeline D', in the first station, the pressure duct A' is connected to the second switching pipeline D', the low pressure line C' and
First switching pipeline B' connection, in second station, the pressure duct A' is connected to the first switching pipeline B', the low pressure line
C' be connected to the second switching pipeline D', which is characterized in that also there is 3rd station, in 3rd station, the pressure duct A' and
Low pressure line C' connection；The pressure duct A' and low pressure line C' is by being located at main valve body (7) outside and being equipped with control valve
(5') (6') pipeline connects, in the first, second station, (5') the control valve disconnects, obstruct the pressure duct A' with it is low
Pressure pipe road C', in 3rd station, (5') the control valve is connected, and is connected to the pressure duct A' with low pressure line C'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610225287.7A CN107289152B (en) | 2016-04-12 | 2016-04-12 | A kind of four-way reversing valve and its pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610225287.7A CN107289152B (en) | 2016-04-12 | 2016-04-12 | A kind of four-way reversing valve and its pilot valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107289152A CN107289152A (en) | 2017-10-24 |
| CN107289152B true CN107289152B (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610225287.7A Active CN107289152B (en) | 2016-04-12 | 2016-04-12 | A kind of four-way reversing valve and its pilot valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113404891B (en) * | 2021-06-24 | 2023-07-14 | 嘉兴米克气动设备有限公司 | Solenoid valve convenient to change elastic component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214369A (en) * | 2014-08-11 | 2014-12-17 | 海信（浙江）空调有限公司 | Four-way reversing valve, air conditioner and control method of air conditioner |
| CN104421458A (en) * | 2013-08-23 | 2015-03-18 | 海信（山东）空调有限公司 | Air conditioning energy-saving four-way reversing valve and control method thereof |
| JP5825452B1 (en) * | 2014-07-22 | 2015-12-02 | ダイキン工業株式会社 | Four-way selector valve and refrigeration system |
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2016
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421458A (en) * | 2013-08-23 | 2015-03-18 | 海信（山东）空调有限公司 | Air conditioning energy-saving four-way reversing valve and control method thereof |
| JP5825452B1 (en) * | 2014-07-22 | 2015-12-02 | ダイキン工業株式会社 | Four-way selector valve and refrigeration system |
| CN104214369A (en) * | 2014-08-11 | 2014-12-17 | 海信（浙江）空调有限公司 | Four-way reversing valve, air conditioner and control method of air conditioner |
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