CN218718989U - Soft-sealing two-way conversion four-way valve - Google Patents
Soft-sealing two-way conversion four-way valve Download PDFInfo
- Publication number
- CN218718989U CN218718989U CN202222641487.4U CN202222641487U CN218718989U CN 218718989 U CN218718989 U CN 218718989U CN 202222641487 U CN202222641487 U CN 202222641487U CN 218718989 U CN218718989 U CN 218718989U
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- China
- Prior art keywords
- valve
- cover plate
- way
- soft
- upper cover
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 26
- 238000012856 packing Methods 0.000 claims description 22
- 238000005299 abrasion Methods 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Multiple-Way Valves (AREA)
Abstract
The utility model relates to the technical field of valves, a soft sealing two-way conversion cross valve, the trompil all around of valve body has the valve rod to peg graft on the valve body to the valve rod passes upper and lower end plate and baffle connection case, and the design of valve pocket hole is symmetrical eccentric structure, along valve rod axis direction fixedly connected with case on the valve rod, and the case is rectangular plate-shaped structure, all is equipped with soft seal gasket all around, and the design dish spring structure of axial lower end cover department, each leak point department installation high temperature resistant high pressure filler. This soft sealed two-way conversion cross valve changes traditional valve structure, when having realized the flow direction conversion of two kinds of different medium, still fine solution the case with the sealed of disk seat, the leakage quantity of the valve that has significantly reduced to the machining precision of sealed face of very big reduction has reduced the manufacturing cost of whole valve.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a soft two-way conversion cross valve that seals.
Background
The soft-sealing two-way conversion four-way valve is a special valve specially designed for recovering the waste heat of the flue gas of a combustion furnace of a coal-to-liquid plant, and is used for realizing the flow direction conversion of two media, namely the flue gas and air. The soft-sealing two-way conversion four-way valve is used as important equipment of the system, and can be gradually popularized and adopted if domestic development and development are successful.
The prior art has the defects that the arrangement of pipelines is too complicated, a large number of pipelines are needed to realize the flow direction conversion of media, the sealing performance is relatively insufficient, and the heat is serious.
SUMMERY OF THE UTILITY MODEL
In view of the above defects in the prior art, the invention designs a soft-seal two-way conversion four-way valve, which realizes four-channel two-way medium conversion at the same time, reduces the medium cross-talk amount in the two-channel medium conversion process, and solves the sealing problem between two channels after switching.
In order to achieve the above object, the utility model provides a following technical scheme: a soft sealing two-way conversion four-way valve comprises a valve body 7 and is characterized in that an upper cover plate 5 and a lower cover plate 11 are arranged above and below the valve body 7, eight groups of disc springs 10 are arranged on a lower baffle plate 9, a valve core 12 is axially supported and extruded to be tightly attached to the upper cover plate 5 and the lower baffle plate 9, a sealing gasket 6 is embedded at the joint of the upper cover plate 5 and the valve core 12, a valve rod 1 is inserted into the valve body 7, the valve rod 1 sequentially penetrates through the upper cover plate 5, the lower cover plate 11 and the lower baffle plate 9 to be connected with the valve core 12, and a shaft head of the valve rod 1 is inserted into the valve core 12 and is fixedly connected through a pin shaft 8;
the valve core 12 is in a rectangular plate structure, and soft sealing gaskets 13 are arranged on the periphery of the valve core 12;
and packing 3 is arranged between the upper cover plate 5 and the valve rod 1 and between the lower cover plate 11 and the valve rod 1, and the packing 3 is compressed by a packing gland 2.
Preferably, the upper cover plate 5 and the lower baffle plate 9 axially support and extrude the valve core 12 to be tightly attached to the upper cover plate 5 and the lower baffle plate 9, so as to fill gaps generated by high-temperature expansion and abrasion.
Preferably, the valve body 7 is of a symmetrical eccentric structure.
Preferably, the valve body 7 is a four-way valve and is provided with two inlets and two outlets respectively.
Preferably, the inner cavity of the valve body 7 is a symmetrical eccentric structure.
Preferably, the upper cover plate 5 and the lower cover plate 11 are respectively provided with a packing gland 2, and the packing gland 2 is fixed on the upper cover plate 5 and the lower cover plate 11 through packing compression studs.
Preferably, the operating frequency of the valve element 12 is once every 5 minutes.
Compared with the prior art, the utility model provides a soft two-way conversion cross valve that seals possesses following beneficial effect:
the utility model relates to a trompil all around of soft seal two-way conversion cross valve body, it has the valve rod to peg graft on the valve body to the valve rod passes upper and lower end plate and baffle connection case, and the design of valve pocket hole is symmetrical eccentric structure, along valve rod axis direction fixedly connected with case on the valve rod, and the case is rectangular plate-shaped structure, all is equipped with soft seal gasket all around, and the design dish spring structure of axial lower end cover department, the resistant high temperature high pressure of each leak point department installation packs. The soft-sealing two-way conversion four-way valve changes the traditional valve structure, realizes the flow direction conversion of two different media, and simultaneously well solves the sealing between the valve core and the valve seat, greatly reduces the leakage amount of the valve, greatly reduces the processing precision of the sealing surface, and reduces the production cost of the whole valve;
the four-way valve structure realizes two-channel bidirectional simultaneous medium conversion.
The valve core is of a rectangular plate structure, and the periphery of the valve core is provided with a flexible sealing gasket.
The inner cavity of the valve body is of a symmetrical eccentric structure.
The baffle plate is provided with a disc spring structure which axially supports and extrudes the valve core, so that the valve core is tightly attached to the baffle plate and the upper end plate, and gaps generated by high-temperature expansion and abrasion can be compensated.
The medium is flue gas and cold air at 600 ℃, the valve core acts frequently, and acts once every 5 minutes, so the material selection and the structural design of the valve meet the requirements of temperature and frequent action performance. The valve body is of a rivet welding structure, and the inner hole is of a symmetrical eccentric circle structure. The valve core is of an integral welding structure and is formed by welding baffle plates at two sides, a soft sealing gasket and a rib plate. The axial direction of the upper cover plate, the baffle plate and the end face of the valve rod is sealed by clamping a metal packing ring. The valve core is designed to be of a rectangular plate structure, soft sealing gaskets are arranged on the periphery of the valve core, the valve body is in a symmetrical eccentric structure so that the valve plate is not contacted with the valve body in the moving process, the problem of friction and abrasion caused by long-term frequent movement is reduced, and the valve core is converted in place to ensure the sealing performance through the soft sealing gaskets; the axial baffle is provided with a disc spring structure, the pretightening force of the disc spring enables the valve core to be tightly attached to the upper cover plate and the baffle in the axial direction, the axial sealing of the valve core is ensured, and the high-temperature butterfly valve can also compensate the problems of clearance and abrasion caused by high-temperature expansion.
Drawings
FIG. 1 is a schematic structural view of a soft seal two-way switching four-way valve of the present invention;
FIG. 2 is a schematic cross-sectional view of a two-way switching four-way valve with soft seal according to the present invention;
in the figure: the sealing structure comprises a valve rod 1, a packing gland 2, a metal wire clamping packing ring 3, a soft sealing packing ring 4, an upper cover plate 5, a metal wire clamping packing pad 6, a valve body 7, a pin shaft 8, a lower baffle plate 9, a disc spring 10, a lower cover plate 11, a valve core 12 and a soft sealing gasket 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a soft seal two-way conversion four-way valve comprises a valve body 7, holes are formed on the periphery of the valve body, the valve body is of a symmetrical eccentric structure, cover plates 5 and 11 are arranged on the upper portion and the lower portion of the valve body, eight groups of disc springs 10 are arranged on a lower portion baffle plate 9, a valve core 12 is axially supported and extruded to be tightly attached to the upper cover plate 5 and the lower portion baffle plate 9, gaps generated by high-temperature expansion and abrasion are compensated, a sealing gasket 6 is embedded at the joint of the valve plate, a valve rod 1 is inserted on the valve body 7, the valve rod 1 penetrates through the cover plates 5 and 11 and the lower portion baffle plate 9 to be connected with the valve core 12, a shaft head of the valve rod 1 is inserted into the valve core 12 and is connected and fixed through a pin shaft 8, the valve core is of a rectangular plate structure, and soft sealing gaskets 13 are arranged on the periphery. And packing 3 is arranged between the cover plates 5 and 11 and the valve rod 1 and is compressed by the gland 2.
The inner cavity of the valve body 7 is of a symmetrical eccentric circle structure. The valve core 12 is of a rectangular plate structure, and soft sealing gaskets 13 are arranged on the periphery of the valve core. In the moving process, because the valve core 12 of the eccentric structure of the valve body 7 is not contacted with the valve body 7, the friction in the moving process is reduced, the service life of the valve core 12 is prolonged, and the conversion speed is improved. When the valve core 12 is switched to the position, the sealing in the circumferential direction is achieved by pressing the soft sealing gasket 13. The soft sealing gasket 13 can compensate the clearance generated by abrasion. The lower baffle 9 is provided with a disc spring structure 10, and the pretightening force of the disc spring 10 tightly attaches the valve core 12 to the upper cover plate 5 and the lower baffle 9, so that the axial sealing performance of the valve core 12 is ensured. The disc spring 10 can also compensate for gaps generated by high-temperature expansion and long-term abrasion, and ensure long-term frequent movement and sealing performance at high temperature. The end surfaces of the valve body 7, the upper cover plate 5 and the lower baffle plate 9 are provided with metal wire clamping packing gaskets 6 for sealing, and the end surface of the valve rod 1, the upper cover plate 7 and the lower baffle plate 9 are provided with soft sealing packing rings 4 for sealing. The soft sealing gasket 13, various soft sealing packing rings 4 and the metal wire clamping packing gasket 6 arranged on the valve core 12 can greatly improve the sealing performance, reduce the processing precision of the sealing surface and reduce the production cost of the whole valve.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions that can be obtained by logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention by those skilled in the art should be within the scope of protection defined by the claims.
Claims (7)
1. A soft-sealing two-way conversion four-way valve comprises a valve body (7) and is characterized in that an upper cover plate (5) and a lower cover plate (11) are arranged above and below the valve body (7), eight groups of disc springs (10) are arranged on a lower baffle plate (9), the upper cover plate (5) and the lower baffle plate (9) axially support and extrude a valve core (12) to be tightly attached to the upper cover plate (5) and the lower baffle plate (9), a sealing gasket (6) is embedded at the joint of the upper cover plate (5) and the valve core (12), a valve rod (1) is inserted on the valve body (7), the valve rod (1) sequentially penetrates through the upper cover plate (5), the lower cover plate (11) and the lower baffle plate (9) and is connected with the valve core (12), and a shaft head of the valve rod (1) is inserted into the valve core (12) and is fixedly connected through a pin shaft (8);
the valve core (12) is of a rectangular plate-shaped structure, and soft sealing gaskets (13) are arranged on the periphery of the valve core (12);
and packing (3) are arranged between the upper cover plate (5) and the valve rod (1) and between the lower cover plate (11), and the packing (3) is compressed by a packing gland (2).
2. The soft sealing two-way switching four-way valve according to claim 1, wherein the valve core (12) is tightly attached to the upper cover plate (5) and the lower baffle plate (9) for filling the gap generated by high temperature expansion and abrasion.
3. The soft sealing two-way conversion four-way valve according to claim 1, wherein the valve body (7) is a symmetrical eccentric structure.
4. The soft sealing two-way conversion four-way valve according to claim 1, wherein the valve body (7) is a four-way valve having two inlets and two outlets.
5. The soft sealing two-way conversion four-way valve according to claim 1, wherein the inner cavity of the valve body (7) is a symmetrical eccentric structure.
6. The soft sealing two-way conversion four-way valve according to claim 1, wherein the upper cover plate (5) and the lower cover plate (11) are respectively provided with a packing gland (2), and the packing gland (2) is fixed on the upper cover plate (5) and the lower cover plate (11) through packing compression studs.
7. A soft seal two way switching four way valve according to claim 1 wherein the valve spool (12) is rotated once every 5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222641487.4U CN218718989U (en) | 2022-10-08 | 2022-10-08 | Soft-sealing two-way conversion four-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222641487.4U CN218718989U (en) | 2022-10-08 | 2022-10-08 | Soft-sealing two-way conversion four-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218718989U true CN218718989U (en) | 2023-03-24 |
Family
ID=85640464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222641487.4U Expired - Fee Related CN218718989U (en) | 2022-10-08 | 2022-10-08 | Soft-sealing two-way conversion four-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218718989U (en) |
-
2022
- 2022-10-08 CN CN202222641487.4U patent/CN218718989U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230324 |