CN112324947B - Rotary reversing valve - Google Patents
Rotary reversing valve Download PDFInfo
- Publication number
- CN112324947B CN112324947B CN202011266160.2A CN202011266160A CN112324947B CN 112324947 B CN112324947 B CN 112324947B CN 202011266160 A CN202011266160 A CN 202011266160A CN 112324947 B CN112324947 B CN 112324947B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve core
- outer edge
- spool
- flow passage
- Prior art date
- 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.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 27
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 239000008358 core component Substances 0.000 abstract description 6
- 239000000306 component Substances 0.000 description 16
- 238000004891 communication Methods 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- REEBJQTUIJTGAL-UHFFFAOYSA-N 3-pyridin-1-ium-1-ylpropane-1-sulfonate Chemical compound [O-]S(=O)(=O)CCC[N+]1=CC=CC=C1 REEBJQTUIJTGAL-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0856—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in more than one plane perpendicular to the axis of the plug
-
- 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
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0442—Spindles and actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The application discloses a rotary reversing valve, which comprises a valve core component, wherein the valve core component comprises a valve core, the valve core comprises a first flow passage and a second flow passage, the first flow passage comprises two first valve opening parts, and the two first valve opening parts are positioned at the peripheral edge parts of the valve core; the second flow passage comprises two second valve opening parts which are positioned at the circumferential outer edge part of the valve core; the flow guide channel comprises a first flow guide channel and a second flow guide channel, and the first flow guide channel comprises a slot extending from the first valve opening part along the circumferential outer edge part; the second diversion channel comprises a slot extending from the second valve opening part along the circumferential outer edge part, so that the instant impact of high-pressure fluid on the valve core is improved.
Description
The application is based on the prior patent application No. CN201710747988.1, the application date is 2017, 8 and 28, and the application name is a divisional application of a rotary reversing valve.
Technical Field
The application relates to the technical field of refrigeration system control, in particular to a rotary reversing valve.
Background
A reversing valve is generally adopted in a refrigeration system to realize the conversion function of refrigeration and heating. With the development of industry, large-scale refrigeration equipment is also continuously applied to the refrigeration industry. The refrigerating capacity requirement of the reversing valve is continuously improved, and the volume of a reversing valve product is required to be large, so that the rotary reversing valve with a large structure is adopted to switch the refrigerating/heating functions of the system.
Fig. 1 is a schematic diagram of a rotary reversing valve for use in a refrigeration system in the related art. As shown in fig. 1. The refrigeration system includes a compressor 200, a first heat exchanger 300, a rotary reversing valve 100, a throttling element 500, and a second heat exchanger 400 in communication via piping. The rotary reversing valve 100 adopts a columnar valve core to rotate in an inner cavity of a valve body to switch flow paths, so that the valve core forms two independent flow paths, for example, the structure of the rotary reversing valve is improved, and the instant impact of high-pressure fluid on valve core components is improved, which is a technical problem to be considered by those skilled in the art.
Disclosure of Invention
In view of this, the present application provides a rotary reversing valve comprising:
a spool part including a spool including a first flow passage and a second flow passage, the first flow passage forming two first valve port portions at a peripheral edge portion of the spool; the second flow passage forms two second valve opening parts at the peripheral outer edge part of the valve core;
the valve body part comprises a valve cavity, the inner wall of the valve cavity is matched with the peripheral edge part of the valve core so that the valve core can rotate in the valve cavity, and a flow path port is arranged on the inner wall of the valve cavity;
a drive member having a drive shaft drivingly connected to the spool member;
the flow guide channel comprises a first flow guide channel and a second flow guide channel, and the first flow guide channel comprises a slot extending from the first valve opening part along the circumferential outer edge part; the second diversion channel comprises a slot extending from the second valve opening part along the circumferential outer edge part.
According to the technical scheme, the flow guide channel comprises a first flow guide channel and a second flow guide channel, wherein the first flow guide channel comprises a slot extending from the first valve opening part along the circumferential outer edge part; the second diversion channel comprises a slot which extends from the second valve opening part along the peripheral edge part, so that the impact of high-pressure fluid received by the valve core of the rotary reversing valve in the rotating process is improved.
Further, the valve core is provided with an axial containing groove at the peripheral edge part of the first valve opening part, which is opposite to the second valve opening part, the axial containing groove is an axial through groove, the axial containing groove comprises a containing part and a connecting part which is extended from the containing part to the necking of the notch, the axial sealing part comprises an elastic component and a sealing component, the elastic component is arranged in the axial containing groove, the sealing component is partially protruded out of the peripheral edge part from the connecting part to the notch direction, the elastic component is elastically abutted against the sealing component, and the peripheral sealing component is respectively arranged at the positions, close to the upper end part and the lower end part, of the peripheral edge part.
Further, the sealing member is a sealing strip, the sealing member comprises a metal insert penetrating along the axial direction, the elastic member is in a strip shape, and the cross section outline of the elastic member at least comprises a section of circular arc.
Further, the elastic member is in an elongated shape with a circular or oval cross-sectional profile, and the bottom wall of the accommodating groove is provided with an arc surface corresponding to the arc-shaped cross-sectional profile of the elastic member.
Further, the hardness of the sealing member is greater than that of the elastic member, the sealing member is made of nonmetal engineering plastic material, and the elastic member is made of rubber material.
Further, the hardness of the sealing member is greater than that of the elastic member, the sealing member is made of metal copper or aluminum, and the elastic member is made of rubber.
Further, the valve body part comprises a valve body, an upper end cover and a lower end cover, wherein the upper end cover is provided with an upper bearing seat, the lower end cover is provided with a lower bearing seat, the valve core part is supported by the upper bearing seat and the lower bearing seat through bearings, an upper chamber is formed between the upper end part of the valve core and the upper end cover, a lower chamber is formed between the lower end part of the valve core and the lower end cover, the driving part comprises a cover body and a driving motor arranged in an inner cavity of the cover body, the cover body is fixedly connected with the upper end cover, a driving shaft of the driving motor stretches into the upper chamber and is in transmission connection with the valve core part, the inner cavity of the cover body is communicated with the upper chamber, the driving part comprises a swinging cylinder, a driving shaft of the swinging cylinder stretches into the upper chamber and is in transmission connection with the valve core part, and the upper end cover is provided with a limiting part which can limit the rotating stroke of the driving shaft.
Further, the relationship between the inner diameter dimension (D1) of the valve cavity and the outer diameter dimension (D2) of the circumferential outer edge of the valve core is satisfied: D1-D2 is more than or equal to 0.24mm, when the valve core is positioned at a first switching position or a second switching position, the sealing component is abutted against the inner wall of the valve cavity, and the distance (H) between the sealing component and the peripheral outer edge part is more than or equal to 0.12mm.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the embodiments of the present application, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: a schematic structural diagram of a rotary reversing valve in a refrigeration system in the background art;
fig. 2: the application provides a structural schematic diagram of a rotary reversing valve;
fig. 3: FIG. 2 is a front perspective view of a spool assembly of the rotary reversing valve;
fig. 4: FIG. 2 is a schematic side perspective view of a spool component of the rotary reversing valve;
fig. 5: FIG. 4 is a schematic view of the cross-section of the spool piece in the direction A-A;
fig. 6: FIG. 5 is an enlarged schematic view of the spool assembly in area I;
fig. 7: FIG. 2 is a schematic view of the flow path channel condition of the rotary reversing valve in a first switching position;
fig. 8: FIG. 2 is a schematic view of the flow path channel condition of the rotary reversing valve in a second switching position;
fig. 9: FIG. 2 is a schematic view of the flow path channel condition of the rotary reversing valve in the neutral position;
FIG. 10 is a schematic view of another rotary reversing valve according to the present application;
fig. 11: the application provides a schematic diagram of the state of a flow path channel of another rotary reversing valve at the middle position;
FIG. 12 is a schematic view of a seal member according to the present application;
FIG. 13 is a schematic view of an elastic member according to the present application;
fig. 14: the application provides a schematic structure diagram of another valve core component in a transverse section. The reference numerals in fig. 1-14 indicate:
100-rotary reversing valve and 200-compressor;
300-first heat exchanger, 400-first heat exchanger, 500-throttling element;
1-valve core component, 11-valve core, 111-circumferential external edge portion;
12/12A-first flow channel, 13/13A-second flow channel;
14/14A-first valve part, 15/15A-second valve part;
16-an axial through groove, 161-a step part and 162-a bottom wall arc-shaped surface;
163-receiving portion, 164-connecting portion;
2-valve body part, 21-valve body;
22-valve cavity holes;
221-upper chamber, 222-lower chamber, 223-valve cavity inner peripheral wall;
23-flow path ports;
231-first flow path port, 232-second flow path port;
233-third flow path port, 234-fourth flow path port;
24-upper end cover, 25-lower end cover;
3-a driving part;
31-cover body, 32-inner cavity, 33-driving motor and 34-swinging cylinder;
331/341-drive shaft, 35-restriction member;
4/4A-diversion channel;
41-a first diversion channel and 42-a second diversion channel;
5-an axial seal member;
51-sealing member/sealing strip, 52-elastic member/rubber;
511-metal insert, 512 step;
6-a circumferential sealing member;
7-upper bearing seat, 8-lower bearing seat and 9-bearing.
Detailed Description
In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings and the detailed description.
Fig. 2 is a schematic structural view of a rotary reversing valve according to the present application, fig. 3 is a schematic front perspective view of a spool part of the rotary reversing valve in fig. 2, fig. 4 is a schematic side perspective view of the spool part of the rotary reversing valve in fig. 2, fig. 5 is a schematic sectional structural view of the spool part in A-A direction in fig. 4, and fig. 6 is an enlarged schematic structural view of the spool part in the I region in fig. 5.
As shown in fig. 2, 3, 4, 5 and 6. In this embodiment, the rotary switching valve 100 includes a spool member 1, a valve body member 2, and a driving member 3.
The valve body member 1 includes a valve body 11, the valve body 11 having a substantially cylindrical structure rotatable about a central axis, and two through grooves intersecting with a circumferential outer edge portion 111 are formed in a solid body of the valve body as a first flow passage 12 and a second flow passage 13. The two ports of the first flow passage 12 intersect with the peripheral edge portion 111 to form two first valve port portions 14; the two ports of the second flow passage 13 intersect with the peripheral edge portion 111 to form two second valve port portions 15. A groove is formed in the first valve opening portion 14 along the circumferential outer edge portion 111 in an extending manner to form a first diversion channel 41; a groove is provided in the second valve port portion 15 so as to extend along the circumferential outer edge portion 111, thereby forming a second flow guide passage 42. In the present embodiment, the first diversion passages 41 are symmetrically arranged on both sides of the first valve opening portion 14 on the circumferential outer edge portion 111; the second diversion channel 42 is symmetrically arranged on the two sides of the second valve opening 15 on the circumferential outer edge 111, and the design structure can make the fluid circulation pressure uniform. Of course, other asymmetric structures can be used, or a diversion channel is arranged at only one valve port part of the flow channel.
In order to maintain tightness between the first flow passage 12 and the second flow passage 13 in the steady state of the first switching position and the second switching position, an axial seal member 5 is provided at a position where the first flow guide passage and the second flow guide passage are opposed to each other on the circumferential outer edge portion 111 of the valve body 11 (the term "opposed position" as used herein refers to the first flow guide passage and the second flow guide passage being adjacent to each other). The axial seal component 5 includes a seal member 51 and an elastic member 52.
Specifically, in the present embodiment, an axial through groove 16 is formed in the circumferential outer edge 111 of the valve body 11 at a position intermediate the first guide passage 41 and the second guide passage 42. In the cross-sectional direction, the axial through groove 16 is generally of a "T" configuration that tapers in width in the direction of the slot bottom. The inner wider area is the accommodating portion 163, and the area where the accommodating portion 163 is narrowed toward the notch is the connecting portion 164.
Fig. 12 is a schematic view of a seal member according to an embodiment of the present application, and fig. 13 is a schematic view of an elastic member according to an embodiment of the present application.
As shown in fig. 12 and 13 and with reference to fig. 6. In the present embodiment, the sealing member 51 is specifically a sealing strip, and the sealing strip 51 has a substantially "T" shaped structure in the cross-sectional direction and corresponds to the cross-section of the axial through groove 16 of the spool 11. The sealing strip 51 is placed in the receiving portion 163 of the axial through groove 16, and the "T" shaped front end of the sealing strip 51 protrudes out of the notch of the axial through groove 16 through the connecting portion 164. For further improving the rigidity, the sealing strip 51 is provided with a metal insert 511 penetrating in the axial direction, but it is also possible to use other inserts of a material, the rigidity of which is greater than that of the sealing strip 51.
Other similar structures may be used for the sealing member, such as a sealing strip having a trapezoidal or rectangular cross section. Since the axial receiving groove of the valve core 11 is the axial through groove 16, the sealing strip 51 is easily inserted from the upper end or the lower end of the through groove 16, as is the elastic member 52 mentioned below, and will not be described again.
In this embodiment, in order to make the sealing member 51 have better rigidity, a non-metal engineering plastic material is generally used to satisfy a certain rigidity and a certain strength and wear resistance, and a metal material with softer hardness, such as a metal copper or aluminum material, may be selected.
Also provided in the receiving portion 163 of the axial through groove 16 is an elastic member 52, in this embodiment the elastic member 52 being embodied as an elongated rubber piece with a circular cross-sectional profile. The elastic member 52 elastically abuts the seal member 51 in the notch direction. After the valve body 11 is mounted in the valve hole 22, the holding seal member 51 is abutted against the inner peripheral wall 223 of the valve hole 22, and the tightness between the first flow passage 12 and the second flow passage 13 is maintained.
Considering the working environment of the rotary reversing valve, some impurities are unavoidable in the system, although some impurity filtering components are arranged in the system, the filtering of the components is generally over 120 meshes, namely particles with the diameter of about 0.12mm and below cannot be filtered, so that the relation between the inner diameter size (D1) of the valve cavity hole and the outer diameter size (D2) of the circumferential outer edge of the valve cavity is satisfied in order to prevent the valve cavity and the valve body from being blocked: D2-D1 is more than or equal to 0.24mm.
When the spool is in the first switching position or the first switching position, the seal member 51 abuts against the inner peripheral wall 223 of the valve chamber, and the distance (H) by which the seal member protrudes from the circumferential outer edge portion is 0.12mm or more.
Therefore, the rotary reversing valve structure can be compatible with impurities below 120 meshes and cannot be blocked.
In the present embodiment, in order to provide the elastic member 52 with good elasticity, as a preferable embodiment, a rubber strip having a circular cross-sectional profile is used, and the bottom wall of the axial through groove 16 of the valve element 11 also has an arc surface 162 corresponding to the elastic member 52 in the cross-sectional direction. After the elastic member 52 (rubber strip) is pressed, it can be uniformly deformed, and the surface is not damaged, so that the service life is prolonged. Of course, other similar configurations of the resilient member are possible, as long as the cross-sectional profile includes at least a circular arc, such as a sealing strip having a semicircular or oval cross-section, or the like.
The matching structure of the sealing member 51 and the elastic member 52 is beneficial in that: the sealing member 51 and the elastic member 52 are arranged in the axial through groove 16 along the axial direction between the two flow channels to form a double sealing structure, wherein the sealing member adopts materials with better rigidity and hardness, such as PPS, PEEK and metals such as red copper, aluminum and the like; the elastic component adopts soft materials with better elasticity, such as rubber and the like, and utilizes the elastic deformation of the materials to compensate the fit clearance with a certain compression amount, thereby ensuring the sealing reliability. But also can lead the valve body and the valve core to have proper clearance without causing the blocking effect.
When the valve element 1 is rotated to the intermediate position (described later), the first flow passage and the second flow passage do not directly communicate with the flow passage ports, and at this time, the seal member 51 faces one of the flow passage ports 23, and the portion of the seal member 51 protruding from the circumferential outer edge 111 is free from abutment restriction by the valve chamber inner peripheral wall 223. In the process of continuing to rotate, the valve core 11 is easy to be extruded, deformed and even sheared under the action of the fluid medium, and the sealing structure is damaged. However, since the axial through groove 16 of the spool 11 includes the accommodating portion 163 and the connecting portion 164 extending from the accommodating portion 163 toward the notch reduction. The stepped portion 161 formed between the receiving portion 163 and the connecting portion 164 can effectively prevent the seal member 51 from being separated from the axial through groove 16 by pressure.
It is possible to further consider the sealing reliability between the spool member 1 and the valve chamber 22, and the circumferential sealing members 6 are provided at the upper end portion near and the lower end portion near the peripheral edge portion 111 of the spool 11, respectively.
The valve body member 2 includes a valve body 21, an upper end cap 24, and a lower end cap 25. In the large-sized reversing valve, the valve body 21 is generally formed by metal casting, in which a cylindrical hole is formed as the valve hole 22, and the inner peripheral wall 223 of the valve hole 22 is matched with the circumferential outer edge 111 of the cylindrical valve core 11 so that the valve core 11 can rotate in the valve hole 22. An upper end cap 24 and a lower end cap 25 are fixed to the valve body 21.
The upper end cover 24 is provided with an upper bearing seat 7, and the lower end cover 25 is provided with a lower bearing seat 8. A stepped shaft having a diameter smaller than that of the valve body 11 and extending upward from an upper end portion thereof, and an upper bearing 9 fixed to the stepped shaft; a stepped shaft having a smaller diameter and extending downward from a lower end portion of the valve body 11 is fixed with a lower bearing 9. The spool member 1 is supported in the valve chamber 22 and rotatable within the valve chamber 22 by the upper bearing housing 7 and the lower bearing housing 8 respectively cooperating with the upper/lower bearings 9.
In this embodiment, the upper bearing seat 7 and the upper end cover 24, and the lower bearing seat 8 and the lower end cover 25 are integrally formed, and the bearing seat may be fixed to the end cover as an insert.
An upper chamber 221 is formed between the upper end of the valve element 11 and the upper end cover 24, and a lower chamber 222 is formed between the lower end of the valve element 11 and the lower end cover 25.
The first flow port may be set as a high pressure inlet port, and then, preferably, the upper chamber 221 and the lower chamber 222 are in communication with the high pressure chamber of the first flow port (specifically, may be in communication by another connection pipe or directly open a hole in the valve body). The upper and lower chambers 221 and 222 are sealed from the external environment. The upper and lower sides of the valve core 11 are subjected to high pressure, and the fluctuation of pressure change in the reversing rotation process is small.
Four connecting pipes are welded on the valve body 21, and an inner cavity at one end of each connecting pipe is communicated with the valve cavity 22 in a sealing way to form four flow path ports 23, and specifically comprises a first flow path port 231, a second flow path port 232, a third flow path port 233 and a fourth flow path port 234. The other end of the connecting pipe is welded with a flange plate so as to be convenient for being connected with a heat pump system. (four connecting pipes and flanges can also be directly cast on the valve body, thereby improving the reliability of the product and reducing the cost.)
The driving part 3 includes a cover 31, the cover 31 being fixed to the upper end cap 24, and an inner chamber 32 communicating with the upper chamber 221 being formed in the cover 31. A driving motor 33 is disposed in the cover 31, and a driving shaft 331 of the driving motor 33 extends into the upper chamber 221 and drives the valve core 11 to rotate.
Referring to fig. 7, when the driving shaft 331 of the driving motor 33 rotates the valve body 11 to the first switching position with respect to the valve body member 2, the first valve port portions 14 at both ends of the first flow passage 12 are respectively in direct communication with the first flow passage port 231 and the second flow passage port 232; the second valve portions 15 at both ends of the second flow path 13 are in direct communication with the third flow path port 233 and the fourth flow path port 234, respectively.
Referring to fig. 8, when the driving shaft 331 of the driving motor 33 rotates the valve body 11 to the second switching position with respect to the valve body member 2, the first valve port portions 14 at both ends of the first flow passage 12 are respectively in direct communication with the first flow passage port 231 and the third flow passage port 233; the second valve portions 15 at both ends of the second flow passage 13 are in direct communication with the second flow passage port 232 and the fourth flow passage port 234, respectively.
Referring to fig. 9, when the drive shaft 331 of the drive motor 33 rotates the spool 11 relative to the valve body member 2 to an intermediate position (the intermediate position is defined as a position in which the spool rotates to be intermediate between the first switching position and the second switching position, and neither the first flow passage nor the second flow passage is in direct communication with the flow passage ports, specifically, in fig. 9, the spool 11 rotates until the first valve port portion 14 of the first flow passage 12 is opposite to the valve chamber inner peripheral wall 223 and is not in direct communication with any one of the flow passage ports 23, and the second valve port portion 15 of the second flow passage 13 is opposite to the valve chamber inner peripheral wall 223 and is not in direct communication with any one of the flow passage ports 23). At this time, the fluid in the first flow path port 231, the second flow path port 232, the third flow path port 233, and the fourth flow path port 234 can still communicate with the first flow path 12 and the second flow path 13 through the respective diversion channels 4 (the first diversion channel 41 and the second diversion channel 42) correspondingly, so that it is ensured that the system flow channels are not blocked and no instantaneous high pressure is generated during the reversing process.
In the above embodiment, the diversion passages 4 are symmetrically slotted on both sides of the valve opening portion on the circumferential outer edge portion 111. Of course, the diversion channel may be provided only on the circumferential outer edge portion 111 with respect to one side of the valve opening portion. The beneficial effects of the above embodiments can be achieved only if the system fluid has an open flow channel during the reversing process, and will not be described in detail herein.
Fig. 11 is a schematic view showing a state of a flow path passage of another rotary reversing valve in an intermediate position according to the present application.
As shown in fig. 11. In the present embodiment, the flow guide passage 4A is provided on the valve cavity inner peripheral wall 223 of the valve body member 1, and the flow guide passage 4A is specifically provided in a groove extending from the flow path port 23 in the circumferential direction of the valve cavity inner peripheral wall 223. When the spool member rotates from the first switching position to the intermediate position in the second switching position, the fluid in the first flow path port 231, the second flow path port 232, the third flow path port 233, and the fourth flow path port 234 may still be communicated with the first flow path 12 and the second flow path 13 through the diversion passages 4A, and the description thereof will be omitted.
Fig. 14 is a schematic view of a cross-sectional structure of another valve core component according to the present application.
As shown in fig. 14. Unlike the foregoing embodiment, in the present embodiment, the valve body 11 is machined with two through grooves intersecting with the circumferential outer edge portion 111 as the first flow passage 12A and the second flow passage 13A. The first flow passage 12A intersects both ends of the circumferential outer edge portion 111 to form two first valve opening portions 14A; the two ports of the second flow passage 13A intersect with the circumferential outer edge portion 111 to form two second valve port portions 15A. The two first valve opening parts 14A are communicated with each other, so that the two ends of the first flow channel 12A are communicated together; the two second valve port portions 15A are communicated with each other, so that both ends of the second flow passage 13A are communicated with each other.
Fig. 10 is a schematic structural view of another rotary reversing valve according to the present application.
As shown in fig. 10. Unlike the foregoing embodiment, in the present embodiment, the driving part 3 employs a swing cylinder 34 instead of the driving motor 33. The swing cylinder 34 is fixed on the upper end cover 24, and a driving shaft 341 of the swing cylinder 34 extends into the upper chamber 221 and can drive the valve core 11 to rotate, and meanwhile, a limiting component 35 (see fig. 3) is further arranged on the upper end cover 24, and the limiting component 35 is specifically a fixed block. The driving shaft 341 of the swing cylinder 34 can limit the rotation stroke of the driving shaft after abutting against the fixed block in the process of driving the valve core 11 to rotate.
It should be understood that, in this document, terms such as "upper, lower, inner, and outer" are established based on the positional relationship shown in the drawings, and the corresponding directions and positional relationships may be changed according to the orientations of the products shown in the drawings, so they should not be construed as absolute limits on the protection ranges.
The rotary reversing valve and the refrigerating system provided by the application are described in detail. The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present application and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.
Claims (8)
1. A rotary reversing valve, comprising:
a spool part including a spool including a first flow passage and a second flow passage, the first flow passage forming two first valve port portions at a peripheral edge portion of the spool; the second flow passage forms two second valve opening parts at the peripheral outer edge part of the valve core;
the valve body part comprises a valve cavity, the inner wall of the valve cavity is matched with the peripheral edge part of the valve core so that the valve core can rotate in the valve cavity, and a flow path port is arranged on the inner wall of the valve cavity;
a drive member having a drive shaft drivingly connected to the spool member;
the flow guide channel comprises a first flow guide channel and a second flow guide channel, and the first flow guide channel comprises a slot extending from the first valve opening part along the circumferential outer edge part; the second diversion channel comprises a slot extending from the second valve opening part along the circumferential outer edge part;
the valve core can rotate to an intermediate position relative to the valve body component, in the intermediate position, neither the first runner nor the second runner is directly connected with the flow path port, and fluid in the flow path port is communicated with the first runner or the second runner through the diversion channel.
2. The rotary reversing valve according to claim 1, further comprising an axial seal member and a circumferential seal member, wherein the spool is provided with an axial receiving groove in the circumferential outer edge portion of the first valve port portion opposite to the second valve port portion, the axial receiving groove is an axial through groove, the axial receiving groove includes a receiving portion and a connecting portion extending from the receiving portion toward the slot shrinkage, the axial seal member includes an elastic member and a seal member, the elastic member is disposed in the axial receiving groove, the seal member protrudes from the connecting portion toward the slot direction from the circumferential outer edge portion, the elastic member elastically abuts the seal member, and the circumferential seal member is provided at positions near an upper end portion and near a lower end portion of the circumferential outer edge portion, respectively.
3. The rotary diverter valve as recited in claim 2, wherein the sealing member is a sealing strip, the sealing member comprising a metal insert extending axially therethrough, the resilient member being elongated, the resilient member having a cross-sectional profile including at least a segment of a circular arc.
4. A rotary diverter valve as defined in claim 3, wherein the resilient member is elongated with a circular or oval cross-sectional profile, and the bottom wall of the receiving groove has an arcuate surface corresponding to the arcuate cross-sectional profile of the resilient member.
5. The rotary diverter valve as recited in any one of claims 2-4, wherein the sealing member has a material hardness greater than a material hardness of the resilient member, wherein the sealing member is a non-metallic engineering plastic material, and wherein the resilient member is a rubber material.
6. The rotary diverter valve as recited in any one of claims 2-4, wherein the sealing member has a material hardness greater than a material hardness of the resilient member, wherein the sealing member is a metallic copper or aluminum material, and wherein the resilient member is a rubber material.
7. The rotary reversing valve according to any one of claims 1 to 4, wherein the valve body member includes a valve body, an upper end cap and a lower end cap, the upper end cap is provided with an upper bearing seat, the lower end cap is provided with a lower bearing seat, the valve core member is supported on the upper bearing seat and the lower bearing seat through bearings, an upper chamber is formed between an upper end portion of the valve core and the upper end cap, a lower chamber is formed between a lower end portion of the valve core and the lower end cap, the driving member includes a cover body and a driving motor disposed in an inner cavity of the cover body, the cover body is fixedly connected with the upper end cap, a driving shaft of the driving motor extends into the upper chamber and is in driving connection with the valve core member, the inner cavity of the cover body is communicated with the upper chamber, the driving member includes a swinging cylinder fixedly connected with the upper end cap, a driving shaft of the swinging cylinder extends into the upper chamber and is in driving connection with the valve core member, and the upper end cap is provided with a restriction member capable of restricting a rotation stroke of the driving shaft.
8. The rotary switching valve according to any one of claims 2 to 4, wherein the relationship between the inner diameter dimension (D1) of the valve bore and the outer diameter dimension (D2) of the peripheral outer edge portion of the spool is satisfied: D1-D2 is more than or equal to 0.24mm, when the valve core is positioned at a first switching position or a second switching position, the sealing component is abutted against the inner wall of the valve cavity, and the distance (H) between the sealing component and the peripheral outer edge part is more than or equal to 0.12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266160.2A CN112324947B (en) | 2017-08-28 | 2017-08-28 | Rotary reversing valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710747988.1A CN109424766B (en) | 2017-08-28 | 2017-08-28 | Rotary reversing valve |
| CN202011266160.2A CN112324947B (en) | 2017-08-28 | 2017-08-28 | Rotary reversing valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710747988.1A Division CN109424766B (en) | 2017-08-28 | 2017-08-28 | Rotary reversing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112324947A CN112324947A (en) | 2021-02-05 |
| CN112324947B true CN112324947B (en) | 2023-10-27 |
Family
ID=65502321
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710747988.1A Active CN109424766B (en) | 2017-08-28 | 2017-08-28 | Rotary reversing valve |
| CN202011266160.2A Active CN112324947B (en) | 2017-08-28 | 2017-08-28 | Rotary reversing valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710747988.1A Active CN109424766B (en) | 2017-08-28 | 2017-08-28 | Rotary reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109424766B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946884B (en) * | 2019-05-14 | 2023-07-18 | 浙江三花商用制冷有限公司 | Rotary reversing valve |
| CN110360343B (en) * | 2019-08-09 | 2024-04-16 | 四川芯智热控技术有限公司 | Four-way valve |
| DE102020207925A1 (en) * | 2020-06-25 | 2021-12-30 | Vitesco Technologies GmbH | Mixing valve |
| CN114688306A (en) * | 2020-12-31 | 2022-07-01 | 浙江三花汽车零部件有限公司 | Control valve and thermal management assembly |
| CN115929946A (en) * | 2020-12-31 | 2023-04-07 | 浙江三花汽车零部件有限公司 | Fluid control valve |
| CN113200362B (en) * | 2021-04-13 | 2022-11-01 | 山东天鹅棉业机械股份有限公司 | Four-way valve |
| CN115218003A (en) * | 2021-04-16 | 2022-10-21 | 浙江三花汽车零部件有限公司 | Control valve and method for manufacturing the same |
| CN215950469U (en) * | 2021-06-15 | 2022-03-04 | 广东德昌电机有限公司 | Multi-port valve and thermal management system with same |
| WO2024022518A1 (en) * | 2022-07-29 | 2024-02-01 | 浙江盾安人工环境股份有限公司 | Four-way valve |
| CN115535648A (en) * | 2022-10-14 | 2022-12-30 | 常州华盈新能源设备有限公司 | Three-way flap reversing valve |
| WO2024188427A1 (en) * | 2023-03-10 | 2024-09-19 | ECO Holding 1 GmbH | Valve body and fluid-control valve having a valve body of this kind |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699358A (en) * | 1986-08-15 | 1987-10-13 | Stanadyne, Inc. | Faucet valve with noise reduction structure |
| CN2435590Y (en) * | 1999-04-13 | 2001-06-20 | 胡科茂 | Four-way rotary switching valve |
| CN102235520A (en) * | 2010-04-23 | 2011-11-09 | 大亚科技股份有限公司 | Improved structure of fiberboard production line modulated glue four-way valve |
| CN102563123A (en) * | 2011-12-30 | 2012-07-11 | 美的集团有限公司 | Four-way valve for Carnot cycle system |
| CN202510768U (en) * | 2012-04-09 | 2012-10-31 | 温州市润新机械制造有限公司 | Two-position four-way bypass valve |
| CN104197090A (en) * | 2014-09-10 | 2014-12-10 | 浙江三花旋转阀有限公司 | Rotary type fluid passage changeover valve |
| CN104520200A (en) * | 2012-08-10 | 2015-04-15 | 利乐拉瓦尔集团及财务有限公司 | Shutter for valve and corresponding valve for controlling air flow and relative valve |
| US9212751B2 (en) * | 2012-09-28 | 2015-12-15 | Robertshaw Controls Company | Valve system and method |
| CN205446788U (en) * | 2015-12-03 | 2016-08-10 | 安徽红星阀门有限公司 | A sealing device for valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262143Y (en) * | 1996-05-09 | 1997-09-10 | 苗邑明 | Plunger type four way change over valve |
| ES2229652T3 (en) * | 1999-01-08 | 2005-04-16 | Genebre, S.A. | VALVE FOR FLUIDS. |
| US20030205685A1 (en) * | 2002-02-13 | 2003-11-06 | Whang Cheol H. | Finite control hydraulic valve |
| CN201382190Y (en) * | 2009-04-16 | 2010-01-13 | 中钢集团鞍山热能研究院有限公司 | Sealing performance-enhancing and resistance-reducing valve body of high-performance four-way reversing valve |
-
2017
- 2017-08-28 CN CN201710747988.1A patent/CN109424766B/en active Active
- 2017-08-28 CN CN202011266160.2A patent/CN112324947B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699358A (en) * | 1986-08-15 | 1987-10-13 | Stanadyne, Inc. | Faucet valve with noise reduction structure |
| CN2435590Y (en) * | 1999-04-13 | 2001-06-20 | 胡科茂 | Four-way rotary switching valve |
| CN102235520A (en) * | 2010-04-23 | 2011-11-09 | 大亚科技股份有限公司 | Improved structure of fiberboard production line modulated glue four-way valve |
| CN102563123A (en) * | 2011-12-30 | 2012-07-11 | 美的集团有限公司 | Four-way valve for Carnot cycle system |
| CN202510768U (en) * | 2012-04-09 | 2012-10-31 | 温州市润新机械制造有限公司 | Two-position four-way bypass valve |
| CN104520200A (en) * | 2012-08-10 | 2015-04-15 | 利乐拉瓦尔集团及财务有限公司 | Shutter for valve and corresponding valve for controlling air flow and relative valve |
| US9212751B2 (en) * | 2012-09-28 | 2015-12-15 | Robertshaw Controls Company | Valve system and method |
| CN104197090A (en) * | 2014-09-10 | 2014-12-10 | 浙江三花旋转阀有限公司 | Rotary type fluid passage changeover valve |
| CN205446788U (en) * | 2015-12-03 | 2016-08-10 | 安徽红星阀门有限公司 | A sealing device for valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109424766A (en) | 2019-03-05 |
| CN109424766B (en) | 2022-07-12 |
| CN112324947A (en) | 2021-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112324947B (en) | Rotary reversing valve | |
| CN109424765B (en) | Rotary reversing valve | |
| KR101738321B1 (en) | Ball valve with internal seal arrangement | |
| CN107366754B (en) | Butterfly valve | |
| KR20090077686A (en) | Three-way ball valve | |
| EP1811215B1 (en) | Four way valve | |
| CN211975943U (en) | Leakage-proof two-piece ball valve | |
| EP1180626B1 (en) | Valve and method for forming a valve | |
| US5787930A (en) | High-low pressure passage switching device in heating-cooling apparatus | |
| CN210461787U (en) | Control valve | |
| JP2013139833A (en) | Rotary valve | |
| CN216742879U (en) | Stop valve and refrigerating system thereof | |
| CN107676499B (en) | With the multiple-sealed valve with descaling function | |
| CN210599631U (en) | Hydraulic reversing valve | |
| CN110360344B (en) | Rotary reversing valve | |
| EP4357647A1 (en) | Four-way valve and air conditioning system provided with same | |
| CN218031510U (en) | Reversible solenoid valve and air conditioning unit | |
| CN220668462U (en) | Split type shuttle valve | |
| CN207349451U (en) | A kind of valve of tilting v-seal structure bidirectional bearing | |
| JP6979705B2 (en) | Flow switching valve | |
| EP4328473A1 (en) | Reversible electromagnetic valve and air conditioning unit having same | |
| CN111946865A (en) | Rotary reversing valve | |
| CN215059636U (en) | Solenoid valve and refrigerating system | |
| CN218031509U (en) | Two-way solenoid valve and air conditioning unit | |
| CN107701733A (en) | A kind of valve of tilting v-seal structure bidirectional bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220818 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Applicant after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: 312500 R & D building of Zhejiang Sanhua refrigeration group, xialiquan village, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Applicant before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |