CN108253161A - Expand switch valve - Google Patents
Expand switch valve Download PDFInfo
- Publication number
- CN108253161A CN108253161A CN201611246463.1A CN201611246463A CN108253161A CN 108253161 A CN108253161 A CN 108253161A CN 201611246463 A CN201611246463 A CN 201611246463A CN 108253161 A CN108253161 A CN 108253161A
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- China
- Prior art keywords
- valve
- spool
- hole
- import
- outlet
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- Pending
Links
- 230000008676 import Effects 0.000 claims abstract description 68
- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 abstract description 24
- 239000010725 compressor oil Substances 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 11
- 239000002826 coolant Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/325—Expansion valves having two or more valve members
-
- 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
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
-
- 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
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
- F25B41/345—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by solenoids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Multiple-Way Valves (AREA)
Abstract
Present disclose provides a kind of expansion switch valves, including valve body (500), the inner flow passage of import (501), outlet (502) and connection between the import and the outlet is formed on the valve body, the first spool (503) being mutually parallel and the second spool (504) are installed on the inner flow passage, first spool (503) is so that the import directly connects or disconnect connection with the outlet, and second spool (504) is so that the import connects or disconnect connection with the outlet by throttle orifice (505).In this way, pass through the first spool of integrated installation and the second spool on the inner flow passage of same valve body, it can realize the break-make control of cryogen or throttling expansion control function, it is simple in structure, it is readily produced and installs, and when the expansion switch valve that the disclosure provides is applied to heat pump system, can simplify pipeline connection reduces cost, and the refrigerant charge of entire heat pump system is reduced, convenient for compressor oil return.
Description
Technical field
A kind of this disclosure relates to control valve field, and in particular, to expansion switch valve.
Background technology
Sometimes for control refrigerant reducing pressure by regulating flow or only by not throttling in heat pump system, and existing electronic expansion
Valve can only control refrigerant to throttle or do not pass through.To meet this demand of heat pump system, it is swollen that the prior art will use electronics
Swollen valve and the structure of electromagnetic switch valve parallel connection.This structure needs to use two three-way connections, six roots of sensation pipeline, and structure is more multiple
It is miscellaneous, it is not easy to install.When solenoid valve is closed, during using electric expansion valve, electric expansion valve import is the liquid system of medium temperature high pressure
Cryogen, electronic expansion valve outlet are the liquid refrigerant of low-temp low-pressure, since pipeline is connection, so the inlet and outlet of solenoid valve
Also consistent with the refrigerant condition of electric expansion valve inlet and outlet respectively, the refrigerant pressure temperature of solenoid valve inlet and outlet is different,
Easily the internal structure of solenoid valve is damaged.In addition, since pipeline is relatively more, the refrigerant of entire heat pump system can be improved
Charging amount improves cost.When heat pump system works at low temperature, compressor oil return can be relatively difficult, and the structure of this complexity is also
It can be unfavorable for the oil return of heat pump system.
Invention content
The purpose of the disclosure is to provide a kind of expansion switch valve, which can realize the break-make to flowing through medium
Control and throttling two kinds of functions of control, and it is simple in structure.
To achieve these goals, the disclosure provides a kind of expansion switch valve, including valve body, wherein, it is formed on the valve body
There is the inner flow passage of import, outlet and connection between the import and the outlet, phase is installed on the inner flow passage
Mutually parallel the first spool and the second spool, first spool cause the import directly to connect or disconnect company with the outlet
Logical, second spool causes the import to connect or disconnect connection by throttle orifice with the outlet.
Optionally, the inner flow passage include respectively with the first flow and second flow channel of the inlet communication, described the
The first valve port coordinated with first spool is formed on one runner, the throttle orifice is formed in the second flow channel with shape
As the second valve port coordinated with second spool, the first flow and the second flow channel are intersected in second valve port
Downstream and with the outlet.
Optionally, the second flow channel is mutually perpendicular to the outlet, and the first flow is formed as and the second
The first through hole that road is mutually parallel, the import pass through the second through-hole and described second for being opened on the second flow channel side wall
Runner connects, and the first through hole and second through-hole are respectively communicated with the import.
Optionally, the import is connected by third through-hole with the first through hole, the import by fourth hole and
The second through-hole connection, the third through-hole, the fourth hole and second through-hole coaxial arrangement, the third through-hole
It is reversely opened up with the fourth hole, and perpendicular to the first through hole.
Optionally, the second flow channel is crossed by fifth hole and the first through hole, which is parallel to institute
Fourth hole is stated, and perpendicular to the outlet.
Optionally, the import is opened in the outlet in the opposite sides of the valve body in parallel to each other.
Optionally, the import is arranged between first spool and the second spool.
Optionally, first spool along the coaxial laying of moving direction and first valve port selectively to block or take off
From first valve port.
Optionally, second spool along the coaxial laying of moving direction and second valve port selectively to block or take off
From second valve port.
Optionally, first spool includes the first valve rod and is connected to the first plug of first valve stem end, this
One plug is used on the end face for being sealed against first valve port block the first flow.
Optionally, second spool includes the second valve rod, and the end of second valve rod is formed as taper header structure, described
Second valve port is formed as and the matched taper pore structure of the taper header structure.
Optionally, the valve body include the valve seat for forming the inner flow passage and the first valve casing on the valve seat and
Second valve casing is equipped with the first electromagnetic drive part for driving first spool, second valve in first valve casing
The second electromagnetic drive part for driving second spool is installed, first spool extends from first valve casing in shell
The inner flow passage in the valve seat, second spool extend to described interior in the valve seat from second valve casing
Portion's runner.
Optionally, the valve seat is formed as polyhedral structure, and it is more that first valve casing and second valve casing are arranged on this
On the same surface of face body structure, and first valve casing, the import and the outlet are separately positioned on the polyhedral structure
Different surfaces on, wherein, the installation direction of first valve casing and second valve casing is mutually parallel, the import and described
The opening direction of outlet is mutually parallel.
Through the above technical solutions, by be equipped on the inner flow passage of same valve body the first spool being mutually parallel and
Second spool can realize the break-make control of cryogen or throttling expansion control function, simple in structure, be readily produced and install, and
When the expansion switch valve that the disclosure provides is applied to heat pump system, can simplify pipeline connection reduces cost, and reduce whole
The refrigerant charge of a heat pump system, convenient for compressor oil return.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure, but do not form the limitation to the disclosure together.In the accompanying drawings：
Fig. 1 is the three-dimensional knot in one direction of the expansion switch valve provided according to an illustrative embodiments of the disclosure
Structure schematic diagram；
Fig. 2 is the solid along another direction of expansion switch valve provided according to an illustrative embodiments of the disclosure
Structure diagram；
Fig. 3 is the cross-sectional view of expansion switch valve provided according to an illustrative embodiments of the disclosure,
In, the first valve port is in opening state, and the second valve port is in closed state；
Fig. 4 is that another cross-section structure of expansion switch valve provided according to an illustrative embodiments of the disclosure is illustrated
Figure, wherein, the first valve port is in closed state, and the second valve port is in opening state；
Fig. 5 is that the first internal structure of expansion switch valve provided according to an illustrative embodiments of the disclosure is illustrated
Figure, wherein, the first valve port is in opening state；
Fig. 6 is that the second internal structure of expansion switch valve provided according to an illustrative embodiments of the disclosure is illustrated
Figure, wherein, the second valve port is in opening state.
Reference sign
500 valve body, 501 import 502 exports
503 first spool, 513 first valve rod, 523 first plug
504 second 514 second valve rod of spool, 505 throttle orifice
506 516 first valve port of first flow, 526 first through hole
507 second flow channel, 517 second valve port, 527 second through-hole
510 valve seat, 511 first valve casing, 521 first electromagnetic drive part
512 second 522 second electromagnetic drive part of valve casing, 508 third through-hole
509 fourth hole, 528 fifth hole
Specific embodiment
The specific embodiment of the disclosure is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the case where not making to illustrate on the contrary, the noun of locality such as " upper and lower, left and right " used is typically phase
For the page of attached drawing, " upstream, downstream " is relative to medium, e.g., for the flow direction of refrigerant, is had
Body, it is downstream towards the flow direction of refrigerant, is upstream away from the flow direction of refrigerant, " inside and outside " refers to corresponding portion
Part profile it is interior with it is outer.
As shown in Figures 1 to 6, the disclosure provides a kind of expansion switch valve, including valve body 500, wherein, on the valve body 500
The inner flow passage of import 501, outlet 502 and connection between import 501 and outlet 502 is formed with, is installed on inner flow passage
There are the first spool 503 and the second spool 504 being mutually parallel, the first spool 503 is so that import 501 is directly connected with outlet 502
Or connection is disconnected, the second spool 504 is so that import 501 is connected or disconnected connection by throttle orifice 505 with outlet 502.
Wherein, " the directly connection " that the first spool 503 is realized refers to the cooling agent from the entrance of import 501 of valve body 500
The first spool 503 can be crossed and the outlet 502 of valve body 500, the first spool are insusceptibly flowed directly to by inner flow passage
503 " disconnect connection " realized refer to the cooling agent from the entrance of import 501 of valve body 500 can not cross the first spool 503 and
The outlet 502 of valve body 500 cannot be flowed to by inner flow passage." being connected by throttle orifice " that second spool 504 is realized refers to
Valve body is flowed to after the throttling that the cooling agent entered from the import 501 of valve body 500 can cross the second spool 504 and pass through throttle orifice
500 outlet 502, and " the disconnecting connection " that the second spool 504 is realized refers to the cooling from the entrance of import 501 of valve body 500
Agent can not cross the second spool 504 and the outlet 502 of valve body 500 cannot be flowed to by throttle orifice 505.
In other words, which at least has the first operating position, the second operating position and third operating position,
During the first operating position, the first spool 503 is so that import 501 is directly connected with outlet 502, and the second spool 504 is so that import 501
It disconnects and connecting with outlet 502；At the second operating position, the first spool 503 causes import 501 is disconnected with outlet 502 to connect, the
Two spools 504 are so that import 501 is connected with outlet 502 by throttle orifice 505；At third operating position, the first spool 503 makes
It obtains import 501 to connect with 502 disconnection of outlet, the second spool 504 is so that import 501 is connected with 502 disconnection of outlet.
In this way, by the control to the first spool 503 and the second spool 504, the expansion switch valve of the disclosure can cause
The cooling agent entered from import 501 at least realizes three kinds of states.That is, 1) cut-off state；2) directly connecting for the first spool 503 is crossed
Logical state；And 3) cross the throttling mode of communicating of the second spool 504.
Wherein, after the liquid refrigerant of high temperature and pressure throttles using throttle orifice 505, the mist of low-temp low-pressure can be become
Hydraulic pressure refrigerant, can be that the evaporation of refrigerant create conditions, i.e., the cross-sectional area of throttle orifice 505 is less than import 501 and to go out
The cross-sectional area of mouth 502, and can be flowed through by the way that the second spool 504 is controlled to adjust the aperture size of throttle orifice 505 with control
The flow of throttle orifice 505 is prevented because the refrigeration of the very few generation of refrigerant is insufficient and prevents from causing compression due to refrigerant is excessive
Machine generates liquid hit phenomenon.That is, the cooperation of the second spool 504 and valve body 500, which can to expand, closes work(of the valve with expansion valve
Energy.
In this way, by installing the first spool 503 and the second spool that are mutually parallel on the inner flow passage of same valve body 500
504, controlled or throttled with the break-make for realizing import 501 and outlet 502 control function, simple in structure, is readily produced and is installed, and
When the expansion switch valve that the disclosure provides is applied to heat pump system, it is possible to reduce the refrigerant charge of entire heat pump system,
Cost is reduced, simplifies pipeline connection, the more conducively oil return of heat pump system.
As a kind of illustrative inner mounting structure of valve body 500, as shown in Figures 1 to 6, valve body 500 includes being formed
The valve seat 510 of inner flow passage and the first valve casing 511 and the second valve casing 512 on the valve seat 510, in the first valve casing 511
The first electromagnetic drive part 521 for driving the first spool 503 is installed, is equipped with to drive second in the second valve casing 512
Second electromagnetic drive part 522 of spool 504, the first spool 503 extend to the inner flow passage in valve seat 510 from the first valve casing 511,
Second spool 504 extends to the inner flow passage in valve seat 510 from the second valve casing 512.
Wherein, by the first electromagnetic drive part 521, e.g., electromagnetic coil, the control of power on/off can easily control
First spool 503 controls import 501 directly to connect or disconnect connection with outlet 502 in the position of inner flow passage；By right
Second electromagnetic drive part 522, e.g., electromagnetic coil, the control of power on/off can easily control the second spool 504 in inside stream
The position in road, so as to control whether import 501 and outlet 502 connect with throttle orifice 505.In other words, it is installed in parallel in valve body 500
Have shared import 501 and outlet 502 electric expansion valve and solenoid valve, it is thus possible to realize expansion switch valve break-make and/or
The automation control of throttling, and simplify pipeline trend.
Spatial position for all directions for making full use of expansion switch valve, avoids expansion switch valve from being connected with different pipelines
Interference is generated, valve seat 510 is formed as polyhedral structure, and the first valve casing 511 and the second valve casing 512 are arranged on the polyhedral structure
On same surface, and the first valve casing 511, import 501 and outlet 502 are separately positioned on the different surfaces of the polyhedral structure,
Wherein, the installation direction of the first valve casing 511 and the second valve casing 512 is mutually parallel, the opening direction phase of import 501 and outlet 502
It is mutually parallel.In this way, import, export pipeline can be connected on the different surfaces of polyhedral structure, pipeline can be avoided to arrange
In disorder, the problem of tangling.
As a kind of typical internal structure of electromagnetic expanding valve, as shown in Figures 3 to 6, inner flow passage include respectively with
The first flow 506 and second flow channel 507 that import 501 connects, are formed with what is coordinated with the first spool 503 on first flow 506
First valve port 516, throttle orifice 505 are formed in second flow channel 507 to be formed as the second valve port coordinated with the second spool 504
517, first flow 506 and second flow channel 507 are intersected in the downstream of the second valve port 517 and are connected with outlet 502.
That is, it realizes the closing to the first valve port 516 by converting position of first spool 503 in inner flow passage or beats
It opens, and then controls blocking or being connected for the first flow 506 of connection import 501 and outlet 502, it is described above so as to realize
Solenoid valve connection or disconnect connection function.Similarly, by convert position of second spool 504 in inner flow passage come
Blocking or being connected to the second valve port 517 is realized, so as to realize the throttling function of electric expansion valve.
First flow 506 and second flow channel 507 can be respectively communicated with import 501 and outlet with any appropriate arrangement
502, to reduce the whole occupied space of valve body 500, as shown in figure 5, second flow channel 507 is mutually perpendicular to outlet 502, it is first-class
Road 506 is formed as the first through hole being mutually parallel with second flow channel 507 526, and import 501 is by being opened in 507 side of second flow channel
The second through-hole 527 on wall is connected with second flow channel 507, and 526 and second through-hole 527 of first through hole is respectively communicated with import 501.
Farthest to shorten the total length of inner flow passage, as shown in Figure 3 and Figure 4, import 501 passes through third through-hole
508 connect with first through hole 526, and import 501 is connected by fourth hole 509 with the second through-hole 527, third through-hole the 508, the 4th
509 and second through-hole 527 of through-hole is coaxially disposed, and third through-hole 508 is reversely opened up with fourth hole 509, and logical perpendicular to first
Hole 526.I.e. fourth hole 509 is also perpendicularly to the second through-hole 527.In this way, the refrigerant flowed into from import 501 can pass through respectively
The third through-hole 508 and fourth hole 509 flow to 526 and second through-hole 527 of first through hole, and can ensure the third through-hole
508 and fourth hole 509 total length it is most short.
Farthest to shorten the total length of inner flow passage, as shown in Figure 3 and Figure 4, second flow channel 507 is logical by the 5th
Hole 528 crosses with first through hole 526, which is parallel to fourth hole 509, and perpendicular to outlet 502.In other words,
The fifth hole 528, fourth hole 509, third through-hole 508, the second through-hole 527 and first through hole 526 surround one closure
The runner of orthogonal rectangle.In this manner it is possible to ensure that the total length of the inner flow passage in valve body 500 is most short, so as to ensure to freeze
Agent can quickly flow therethrough the expansion switch valve.
It is connected for convenience of pipe fitting of the inlet and outlet respectively from different pipelines of valve body 500, as shown in Figures 1 to 6, into
Mouth 501 is opened in outlet 502 in the opposite sides of valve body 500 in parallel to each other.In this way, the pipe fitting of different pipelines can divide
It is not installed to the opposite sides of valve body 500, the installation space of valve body the same side is avoided to be limited, and can prevent different pipelines from arranging
Situation that is in disorder, tangling.
Further, the total length for farthest shortening inner flow passage, import 501 are arranged on 503 He of the first spool
Between second spool 504.
It should be noted that import 501 herein is arranged between the first spool 503 and the second spool 504, import is represented
501 projection in the plane being made of the first spool 503 and the second spool 504, positioned at the first spool 503 and the second spool
Between 504.
As shown in Figure 3 and Figure 4, for ease of realizing the closing of the first valve port 516 and opening, the first spool 503 is along the side of movement
To with the coaxial laying of the first valve port 516 selectively to block or be detached from the first valve port 516.
For ease of realizing the closing of the second valve port 517 and opening, as shown in Figure 3 and Figure 4, the second spool 504 is along the side of movement
To with the coaxial laying of the second valve port 517 selectively to block or be detached from the second valve port 517.
Further, as shown in Figure 3 and Figure 4, the reliability blocked to ensure the first spool 503 to first flow 506, the
One spool 503 can include the first valve rod 513 and the first plug 523 for being connected to 513 end of the first valve rod, first plug
523 are used on the end face for being sealed against the first valve port 516 block first flow 506.
For ease of adjusting the aperture size of the throttle orifice 505 of expansion switch valve, as shown in Figure 3 and Figure 4, the second spool 504
Including the second valve rod 514, the end of second valve rod 514 is formed as taper header structure, and the second valve port 517 is formed as and the taper
The matched taper pore structure of header structure.
Wherein, expanding 505 aperture of throttle orifice of switch valve can move up and down to adjust by the second spool 504, and
Moving up and down for second spool 504 can be adjusted by the second electromagnetic drive part 522.If expand the throttle orifice 505 of switch valve
Aperture be zero, as shown in figure 4, the second spool 504 is in extreme lower position, the second spool 504 blocks the second valve port 517, refrigeration
Agent cannot pass through throttle orifice 505, i.e. the second valve port 517 completely；If expanding switch valve throttle orifice 505 has aperture, such as Fig. 5 institutes
Show that between the taper header structure of the end of the second spool 504 and throttle orifice 505 there is gap, flow to out again after refrigerant throttling
Mouth 502.It, can be by controlling the second electromagnetic drive part 522 so that second when if desired increasing the throttle opening of expansion switch valve
Spool 504 moves up, so that taper header structure is far from throttle orifice 505, so as to fulfill the increase of 505 aperture of throttle orifice；Phase
Instead, it when the aperture for needing the throttle orifice 505 for reducing expansion switch valve, can drive mobile under 504 phase of the second spool.
In use, when only needing the solenoid valve function using expansion switch valve, i.e., when expansion switch valve is positioned at above-mentioned
During the first operating position, as shown in Figure 3 and Figure 5, the first electromagnetic drive part 521 powers off, the first plug 523 of the first spool 503
The first valve port 516 is detached from, the first valve port 516 is in opening state；Second electromagnetic drive part 522 is powered, and the second spool 504 is in
Extreme lower position, the second spool 504 block throttle orifice 505, and the refrigerant of inner flow passage is flowed into from import 501 cannot pass through completely
Throttle orifice 505 can only pass sequentially through third through-hole 508, the first valve port 516, first through hole 526 and flow into outlet 502.
It should be noted that the dotted line with the arrow in Fig. 3 and Fig. 5 represents stream of the refrigerant when using solenoid valve function
Access line and trend.
When only needing the electric expansion valve function using expansion switch valve, i.e., when expansion switch valve is located at above-mentioned second
During operating position, as shown in Figure 4 and Figure 6, the first electromagnetic drive part 521 is powered, and the first plug 523 of the first spool 503 blocks
First valve port 516, the first valve port 516 are closed；Second electromagnetic drive part 522 powers off, and the second spool 504 is in highest
Position, the second spool 504 are detached from throttle orifice 505, and the refrigerant that inner flow passage is flowed into from import 501 completely cannot be by first
Through-hole 526 can only pass sequentially through fourth hole 509, the second through-hole 527, throttle orifice 505 and fifth hole 528 and flow into outlet
In 502, and the second spool 504 is can move up and down to adjust the size of the aperture of throttle orifice 505.
It should be noted that the dotted line with the arrow in Fig. 4 and Fig. 6 represents refrigerant when using electric expansion valve function
Flow route and trend.
When not needing to using the expansion solenoid valve function of switch valve and electric expansion valve function, i.e., when expansion switch valve position
When above-mentioned third operating position, the first electromagnetic drive part 521 is powered, and the first plug 523 of the first spool 503 blocks first
Valve port 516, the first valve port 516 are closed；Second electromagnetic drive part 522 is powered, and the second spool 504 is in lowest order
It puts, the second spool 504 blocks throttle orifice 505, and the refrigerant that inner flow passage is flowed into from import 501 completely cannot be by first-class
Road and second flow channel, i.e. inner flow passage are in cut-off state.
The preferred embodiment of the disclosure is described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought should equally be considered as disclosure disclosure of that.
Claims (13)
1. a kind of expansion switch valve, including valve body (500), which is characterized in that import (501) is formed on the valve body (500), is gone out
Mouth (502) and connection are pacified in the import (501) and the inner flow passage exported between (502), the inner flow passage
Equipped with the first spool (503) and the second spool (504) being mutually parallel, first spool (503) is so that the import (501)
Directly connect or disconnect connection with the outlet (502), second spool (504) cause the import (501) and it is described go out
Mouth (502) passes through throttle orifice (505) and connects or disconnect connection.
2. expansion switch valve according to claim 1, which is characterized in that the inner flow passage include respectively with the import
(501) first flow (506) of connection and second flow channel (507) are formed with and first valve on the first flow (506)
Core (503) cooperation the first valve port (516), the throttle orifice (505) be formed in the second flow channel (507) be formed as with
The second valve port (517) of second spool (504) cooperation, the first flow (506) and the second flow channel (507) cross
It is connected in the downstream of second valve port (517) and with the outlet (502).
3. expansion switch valve according to claim 2, which is characterized in that the second flow channel (507) and the outlet
(502) it is mutually perpendicular to, the first flow (506) is formed as the first through hole being mutually parallel with the second flow channel (507)
(526), the import (501) passes through the second through-hole (527) and described second for being opened on the second flow channel (507) side wall
Runner (507) connects, and the first through hole (526) and second through-hole (527) are respectively communicated with the import (501).
4. expansion switch valve according to claim 3, which is characterized in that the import (501) passes through third through-hole (508)
It is connected with the first through hole (526), the import (501) is connected by fourth hole (509) and second through-hole (527)
Logical, the third through-hole (508), the fourth hole (509) and second through-hole (527) coaxial arrangement, the third are led to
Hole (508) is reversely opened up with the fourth hole (509), and perpendicular to the first through hole (526).
5. expansion switch valve according to claim 4, which is characterized in that the second flow channel (507) passes through fifth hole
(528) it crosses with the first through hole (526), which is parallel to the fourth hole (509), and perpendicular to
The outlet (502).
6. the expansion switch valve according to any one in claim 1-5, which is characterized in that the import (501) and institute
Outlet (502) is stated to be opened in parallel to each other in the opposite sides of the valve body (500).
7. expansion switch valve according to claim 6, which is characterized in that the import (501) is arranged on first valve
Between core (503) and the second spool (504).
8. the expansion switch valve according to any one in claim 2-5, which is characterized in that first spool (503)
Along the coaxial laying of moving direction and first valve port (516) selectively to block or be detached from first valve port (516).
9. the expansion switch valve according to any one in claim 2-5, which is characterized in that second spool (504)
Along the coaxial laying of moving direction and second valve port (517) selectively to block or be detached from second valve port (517).
10. expansion switch valve according to claim 8, which is characterized in that first spool (503) includes the first valve rod
(513) and it is connected to the first plug (523) of the first valve rod (513) end, first plug (523) is for being sealed against
To block the first flow (506) on the end face of first valve port (516).
11. expansion switch valve according to claim 9, which is characterized in that second spool (504) includes the second valve rod
(514), the end of second valve rod (514) is formed as taper header structure, and second valve port (517) is formed as and the conical head
The matched taper pore structure of structure.
12. expansion switch valve according to claim 1, which is characterized in that the valve body (500) is including forming the inside
The valve seat (510) of runner and the first valve casing (511) and the second valve casing (512) on the valve seat (510), first valve
The first electromagnetic drive part (521) for driving first spool (503), second valve casing are installed in shell (511)
(512) the second electromagnetic drive part (522) for driving second spool (504), first spool (503) are installed in
Extend to the inner flow passage in the valve seat (510) from first valve casing (511), second spool (504) is from institute
State the inner flow passage that the second valve casing (512) is extended in the valve seat (510).
13. expansion switch valve according to claim 12, which is characterized in that the valve seat (510) is formed as polyhedron knot
Structure, first valve casing (511) and second valve casing (512) are arranged on the same surface of the polyhedral structure, and described
First valve casing (511), the import (501) and the outlet (502) are separately positioned on the different surfaces of the polyhedral structure,
Wherein, the installation direction of first valve casing (511) and second valve casing (512) is mutually parallel, the import (501) and institute
The opening direction for stating outlet (502) is mutually parallel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246463.1A CN108253161A (en) | 2016-12-29 | 2016-12-29 | Expand switch valve |
| PCT/CN2017/117816 WO2018121416A1 (en) | 2016-12-29 | 2017-12-21 | Expansion switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246463.1A CN108253161A (en) | 2016-12-29 | 2016-12-29 | Expand switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108253161A true CN108253161A (en) | 2018-07-06 |
Family
ID=62707832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611246463.1A Pending CN108253161A (en) | 2016-12-29 | 2016-12-29 | Expand switch valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108253161A (en) |
| WO (1) | WO2018121416A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981171A (en) * | 2020-08-31 | 2020-11-24 | 北京海普瑞森超精密技术有限公司 | Diaphragm feedback type hydraulic constant flow control block |
| CN112431945A (en) * | 2020-11-12 | 2021-03-02 | 三花控股集团有限公司 | Three-way reversing device and heat exchange assembly |
| CN113446278A (en) * | 2021-06-28 | 2021-09-28 | 于化杰 | Hydraulic reversing valve |
| CN113719646A (en) * | 2020-05-12 | 2021-11-30 | 盾安环境技术有限公司 | Flow control device and air conditioning system with same |
| CN114645692A (en) * | 2022-05-23 | 2022-06-21 | 德州联合石油科技股份有限公司 | Wellhead Christmas tree throttle valve core and throttle valve |
| WO2022143937A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳市恒致云科技有限公司 | Constant-flow throttling and unloading multi-purpose valve |
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| CN215063015U (en) * | 2021-05-31 | 2021-12-07 | 比亚迪股份有限公司 | Valve bank integrated module |
| CN112440656A (en) * | 2019-08-29 | 2021-03-05 | 浙江三花汽车零部件有限公司 | Air conditioning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113719646A (en) * | 2020-05-12 | 2021-11-30 | 盾安环境技术有限公司 | Flow control device and air conditioning system with same |
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| CN113446278A (en) * | 2021-06-28 | 2021-09-28 | 于化杰 | Hydraulic reversing valve |
| CN113446278B (en) * | 2021-06-28 | 2022-07-22 | 温岭市富力泵业有限公司 | Hydraulic reversing valve |
| CN114645692A (en) * | 2022-05-23 | 2022-06-21 | 德州联合石油科技股份有限公司 | Wellhead Christmas tree throttle valve core and throttle valve |
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| Publication number | Publication date |
|---|---|
| WO2018121416A1 (en) | 2018-07-05 |
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Application publication date: 20180706 |
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