CN216666528U - Double-eccentric butterfly valve reliable in sealing - Google Patents
Double-eccentric butterfly valve reliable in sealing Download PDFInfo
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- CN216666528U CN216666528U CN202123063719.4U CN202123063719U CN216666528U CN 216666528 U CN216666528 U CN 216666528U CN 202123063719 U CN202123063719 U CN 202123063719U CN 216666528 U CN216666528 U CN 216666528U
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Abstract
The utility model provides a reliably sealed double-eccentric butterfly valve which comprises a valve body, a soft sealing valve seat, a hard sealing valve seat, a cover plate, a bolt and a butterfly plate, wherein a sealing section is arranged in the valve body, the soft sealing valve seat is installed in an installation groove of the hard sealing valve seat, the hard sealing valve seat is installed on the butterfly plate, the cover plate is installed on the butterfly plate, a covered edge bulge of the cover plate fixes the hard sealing valve seat, and the cover plate and the butterfly plate are fixed together through the bolt. The utility model has simple and novel structure and convenient use; the whole of soft or hard sealed disk seat uses 1 makes the abrasion resistance of disk seat increase, and the life-span increases, and when soft sealed disk seat was worn and torn simultaneously, because the special construction of disk seat, hard sealed disk seat can contact with the butterfly plate, played secondary seal's effect.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a double-eccentric butterfly valve with reliable sealing.
Background
With the development of industry, various industries have higher and higher requirements on the sealing performance of the double-eccentric butterfly valve, and must ensure the use safety and reliability of the valve, for example, in the gas and oil industries, the sealing and safety of the valve are important, and at this time, a valve is required to have high sealing effect and enough safety guarantee.
The existing double-eccentric butterfly valve has two sealing forms, namely a soft sealing form and a hard sealing form, the abrasion of the valve seat is caused by the repeated friction of the valve seat and the butterfly plate, so that the sealing failure of the valve is caused, the service life is shortened, the structure is not suitable for the petroleum and gas industry with high requirements on sealing and safety, and when a fire disaster or a special condition occurs, the sealing effect fails, so that the great loss is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a double-eccentric butterfly valve with reliable sealing, which solves the problems of sealing failure caused by an eccentric butterfly valve encountering fire and service life reduction caused by abrasion of a sealing pair.
In order to achieve the above purpose, the present invention proposes the following technical solutions: the utility model provides a sealed reliable double-eccentric butterfly valve, includes valve body, soft seal disk seat, hard seal disk seat, apron, bolt and butterfly plate, the valve body in be equipped with sealed cross-section, soft seal disk seat install in the mounting groove of hard seal disk seat, hard seal disk seat install the butterfly plate on, the apron install on the butterfly plate, the arch of borduring of apron is fixed with hard seal disk seat, apron and butterfly plate pass through the bolt fastening and be in the same place.
Preferably, the hard sealing valve seat is provided with a groove for elastic action.
Preferably, when the valve is closed, the sealing section on the valve body is in interference fit with the soft sealing valve seat and just contacts with the hard sealing valve seat.
The utility model has the advantages that: the structure is simple and novel, and the use is convenient; the whole use of soft or hard seal disk seat for the abrasion resistance of disk seat increases, and the life-span increases, and when soft seal disk seat was worn and torn simultaneously, because the special construction of disk seat, hard seal disk seat can contact with the butterfly plate, played secondary seal's effect.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion of the sealing structure of fig. 1.
The sequence number names in the figure: the valve comprises a valve body 1, a valve body 2, a soft sealing valve seat 3, a hard sealing valve seat 4, a cover plate 5, a bolt 6 and a butterfly plate.
Detailed Description
In order to make the purpose and technical solution of the present invention more clearly understood, the present invention is further described with reference to the accompanying drawings.
The utility model provides a sealed reliable double-eccentric butterfly valve, includes valve body 1, soft seal disk seat 2, hard seal disk seat 3, apron 4, bolt 5 and butterfly plate 6, valve body 1 in be equipped with sealed cross-section, soft seal disk seat 2 install in the mounting groove of hard seal disk seat 3, hard seal disk seat 3 install butterfly plate 6 on, apron 4 install on butterfly plate 6, the arch of borduring of apron 4 is fixed with hard seal disk seat 3, apron 4 and butterfly plate 6 pass through bolt 5 and fix and be in the same place.
Finally, it should be noted that the above examples are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (3)
1. The utility model provides a sealed reliable double-eccentric butterfly valve, includes valve body (1), soft seal disk seat (2), hard seal disk seat (3), apron (4), bolt (5) and butterfly plate (6), its characterized in that: the valve body (1) in be equipped with sealed cross-section, soft seal disk seat (2) install in the mounting groove of sealed disk seat (3) firmly, sealed disk seat (3) firmly install butterfly plate (6) on, apron (4) install on butterfly plate (6), the arch of borduring of apron (4) is fixed sealed disk seat (3) firmly, apron (4) and butterfly plate (6) pass through bolt (5) and fix together.
2. A double eccentric butterfly valve with reliable sealing according to claim 1, characterized in that: and a groove for elastic action is arranged on the hard sealing valve seat (3).
3. A double eccentric butterfly valve with reliable sealing according to claim 1, characterized in that: when the valve is closed, the sealing section on the valve body is in interference fit with the soft sealing valve seat (2) and just contacts with the hard sealing valve seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123063719.4U CN216666528U (en) | 2021-12-08 | 2021-12-08 | Double-eccentric butterfly valve reliable in sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123063719.4U CN216666528U (en) | 2021-12-08 | 2021-12-08 | Double-eccentric butterfly valve reliable in sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216666528U true CN216666528U (en) | 2022-06-03 |
Family
ID=81787220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123063719.4U Active CN216666528U (en) | 2021-12-08 | 2021-12-08 | Double-eccentric butterfly valve reliable in sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216666528U (en) |
-
2021
- 2021-12-08 CN CN202123063719.4U patent/CN216666528U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |