CN220770163U - Sealing structure of three-eccentric butterfly valve - Google Patents
Sealing structure of three-eccentric butterfly valve Download PDFInfo
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- CN220770163U CN220770163U CN202322249316.1U CN202322249316U CN220770163U CN 220770163 U CN220770163 U CN 220770163U CN 202322249316 U CN202322249316 U CN 202322249316U CN 220770163 U CN220770163 U CN 220770163U
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- sealing ring
- metal sealing
- graphite gasket
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- butterfly valve
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Abstract
The utility model provides a sealing structure of a three-eccentric butterfly valve, which comprises a valve body and a butterfly plate, wherein a graphite gasket I is arranged on the butterfly plate, a metal sealing ring I is arranged on the graphite gasket I, the graphite gasket I and the metal sealing ring I are fixed by a pressing plate through a fastener, and a metal sealing ring II, a graphite gasket II, a metal sealing ring III and a graphite gasket III are respectively arranged on the upper surface and the lower surface of the metal sealing ring I. The utility model has simple structure and use, good effect, does not increase the disassembly difficulty, can effectively reduce the debugging difficulty and the assembly time in the assembly process, and improves the sealing capability and the working efficiency.
Description
Technical Field
The utility model relates to the technical field of butterfly valves, in particular to a sealing structure of a three-eccentric butterfly valve.
Background
In the structure of the butterfly valve, the special triple eccentric structure of the triple eccentric butterfly valve provides very effective help for sealing the butterfly valve, various valve seat structures are different in size at present, a metal and graphite multi-layer sealing ring is conventionally sealed, a pure metal sealing ring is used at present, and the two structures have various advantages and defects. Because of the structural limitation, the triple eccentric structure can realize good sealing capability by means of medium force, but the situation can be realized by meeting specific flow direction, so that the sealing performance of the existing triple eccentric butterfly valve is not good enough, and the disassembly and assembly are inconvenient.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the sealing structure of the triple offset butterfly valve, which can effectively improve the sealing performance and is convenient to disassemble and assemble.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a seal structure of three eccentric butterfly valve, includes valve body, butterfly plate, is equipped with graphite packing ring I on the butterfly plate, is equipped with metal seal circle I on the graphite packing ring I, and graphite packing ring I passes through the fastener with metal seal circle I by the clamp plate to be fixed, is equipped with metal seal circle II, graphite packing ring II, metal seal circle III, graphite packing ring III respectively on the upper and lower face of metal seal circle I.
Preferably, the graphite gasket II and the graphite gasket III are respectively arranged between the metal sealing ring I and the metal sealing ring II and between the metal sealing ring III.
Preferably, the fasteners are uniformly distributed and abutted against the butterfly plate.
Preferably, the fastener is a screw.
The utility model has simple structure and use, good effect, does not increase the disassembly difficulty, can effectively reduce the debugging difficulty and the assembly time in the assembly process, and improves the sealing capability and the working efficiency.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Wherein, 1, the valve body; 2. a butterfly plate; 3. a graphite gasket I; 4. a metal sealing ring I; 5. a pressing plate; 6. a fastener; 7. a metal sealing ring II; 8. a graphite gasket II; 9. a metal sealing ring III; 10. graphite gasket iii.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in the figure, the embodiment of the utility model provides a sealing structure of a triple eccentric butterfly valve, which comprises a valve body 1 and a butterfly plate 2, wherein a graphite gasket I3 is arranged on the butterfly plate 2, a metal sealing ring I4 is arranged on the graphite gasket I3, the graphite gasket I3 and the metal sealing ring I4 are fixed by a pressing plate 5 through a fastening piece 6, the fastening piece 6 is uniformly distributed and abutted on the butterfly plate 2, a metal sealing ring II 7, a graphite gasket II 8, a metal sealing ring III 9 and a graphite gasket III 10 are respectively arranged on the upper surface and the lower surface of the metal sealing ring I4, and the graphite gasket II 8 and the graphite gasket III 10 are respectively arranged between the metal sealing ring I4 and the metal sealing ring II 7 and the metal sealing ring III 9.
The metal sealing ring I4 provides main sealing, and graphite packing ring II 8, graphite packing ring III 10 are supplementary sealing, and metal sealing ring I4 can provide necessary sealing washer intensity, prevents that the sealed face from appearing buckling and the condition of deformation under huge closing force's circumstances. The fastener 6 of evenly distributed can screw up fastener 6 through the hole on clamp plate 5, makes fastener 6 tightly support butterfly plate 2, provides the support for between metal seal circle I4 and the butterfly plate 2, and this support can effectually resist impact and the extrusion force that the valve reverse medium force produced to the graphite packing ring I3 between butterfly plate 2 and the metal seal circle I4 when closing, guarantees that graphite packing ring I3 can not produce extrusion deformation any more, has guaranteed the sealing performance of valve.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a seal structure of three eccentric butterfly valve, includes valve body, butterfly plate, its characterized in that: the butterfly plate is provided with a graphite gasket I, the graphite gasket I is provided with a metal sealing ring I, the graphite gasket I and the metal sealing ring I are fixed by a pressing plate through a fastener, and the upper surface and the lower surface of the metal sealing ring I are respectively provided with a metal sealing ring II, a graphite gasket II, a metal sealing ring III and a graphite gasket III.
2. The sealing structure of a triple offset butterfly valve according to claim 1, wherein: the graphite gasket II and the graphite gasket III are respectively arranged between the metal sealing ring I and the metal sealing ring II and between the metal sealing ring III.
3. The sealing structure of a triple offset butterfly valve according to claim 2, wherein: the fasteners are uniformly distributed and abutted on the butterfly plate.
4. A seal structure of a triple offset butterfly valve according to claim 3, wherein: the fastener is a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322249316.1U CN220770163U (en) | 2023-08-22 | 2023-08-22 | Sealing structure of three-eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322249316.1U CN220770163U (en) | 2023-08-22 | 2023-08-22 | Sealing structure of three-eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220770163U true CN220770163U (en) | 2024-04-12 |
Family
ID=90604355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322249316.1U Active CN220770163U (en) | 2023-08-22 | 2023-08-22 | Sealing structure of three-eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220770163U (en) |
-
2023
- 2023-08-22 CN CN202322249316.1U patent/CN220770163U/en active Active
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