CN208348530U - High-performance soft seal butterfly valve - Google Patents
High-performance soft seal butterfly valve Download PDFInfo
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- CN208348530U CN208348530U CN201820932188.7U CN201820932188U CN208348530U CN 208348530 U CN208348530 U CN 208348530U CN 201820932188 U CN201820932188 U CN 201820932188U CN 208348530 U CN208348530 U CN 208348530U
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- soft seal
- valve
- butterfly
- sealing surface
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Abstract
A kind of high-performance soft seal butterfly valve, it is designed using double eccentric structures, that is valve rod axis and butterfly plate sealed section offset dimensions A, valve rod axis and valve flowing channel axis offset size B, valve seal surface build-up welding stainless steel, soft seal ring material is rubber, screw in compression is passed through by butterfly plate and pressing plate, seal degree between sealing ring and valve body sealing surface can be adjusted by holding screw, the taper design of valve body sealing surface will be such that sealing ring gradually compresses when closed, until crush is maximum at vertical run center.
Description
Technical field
The utility model is specifically related to valve technology field, and in particular to a kind of high-performance soft seal butterfly valve.
Background technique
Soft sealing butterfly valve realized as a kind of pipe-line system cutting and flow control component, petroleum, chemical industry,
It obtains applying extremely widely in many fields such as metallurgy, water power.In known butterfly valve technology, seal form is mostly used
Sealing structure, sealing material are rubber, polytetrafluoroethylene (PTFE) etc..Due to the limitation of structure feature, it is not suitable with high temperature resistant, high pressure and resistance to
The industries such as burn into is wear-resistant.The more advanced butterfly valve of existing one kind is three eccentric metal hard sealed butterfly damper, and valve body and valve seat are to connect
Body component, valve seat sealing surface layer heap weld heatproof, corrosion resistant alloy material, and still, the soft seal ring of existing soft sealing butterfly valve is close
Seal structure is often prone to wear in the long-term use, leads to the decline of sealing performance.
Summary of the invention
It is in order to solve the defects of prior art and insufficient.The utility model provides a kind of high-performance soft seal butterfly valve.
The technical solution that the utility model uses is: a kind of high-performance soft seal butterfly valve, including valve body, the valve
It is equipped with valve rod in vivo, the valve rod is equipped with butterfly plate, and the valve body is equipped with valve seat, and it is close that the valve seat is equipped with built-up welding
The junction of cover, the butterfly plate and built-up welding sealing surface is equipped with soft seal ring, and the built-up welding sealing surface and soft seal ring are close
Envelope cooperation, the built-up welding sealing surface are obliquely installed towards valve rod direction, the contact of the soft seal ring and built-up welding sealing surface
Top have a pyramidal structure, the soft seal ring is matched with the built-up welding sealing surface sealing being obliquely installed towards valve rod direction
It closes, realizes that soft seal ring gradually compresses when closed, until crush is maximum at vertical run center.
The butterfly plate is equipped with mounting portion, and the soft seal ring is mounted on mounting portion, in the soft seal ring
It is additionally provided with pressing plate, the soft seal ring is mounted between mounting portion and pressing plate.
Be additionally provided with adjusting screw between the mounting portion and pressing plate, the adjusting screw adjust installation portion and pressing plate it
Between spacing to realize the adjusting of the tightness of soft seal ring and built-up welding sealing surface.
There are offset dimensions A for the sealed section of the axis of the valve rod and butterfly plate.
There are offset dimensions B for the runner axis of the axis of the valve rod and valve body.
Welding block is additionally provided on the runner of the valve body, the welding block is equipped with full thread stud and spiral shell
The closed position for limiting butterfly plate is realized in mother, the full thread stud and butterfly plate limit cooperation.
The built-up welding sealing surface is stainless steel built-up welding sealing surface.
The beneficial effects of the utility model are: the utility model provides a kind of high-performance soft seal butterfly valve, using double inclined
Core structure design, i.e. valve rod axis and butterfly plate sealed section offset dimensions A, valve rod axis and valve flowing channel axis offset size B,
Valve seal surface build-up welding stainless steel, soft seal ring material are rubber, pass through screw in compression, sealing ring and valve body by butterfly plate and pressing plate
Seal degree between sealing surface can be adjusted by holding screw, and the taper design of valve body sealing surface will be such that sealing ring is closing
When gradually compress, until crush is maximum at vertical run center.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the utility model section structure structural schematic diagram.
Fig. 3 is the utility model section structure structural schematic diagram.
1- valve body in figure, 2- valve rod, 3- butterfly plate, 4- valve seat, 5- soft seal ring, 6- weld block, 31- pressing plate, and 32- is adjusted
Screw, 41- built-up welding sealing surface, 61- full thread stud, 62- nut.
Specific embodiment
In order to be more clearly understood that the technology contents of the utility model, spy lifts following embodiment and is described in detail.It is a kind of
High-performance soft seal butterfly valve, including valve body 1, the valve body 1 is interior to be equipped with valve rod 2, and the valve rod 2 is equipped with butterfly plate 3, described
Valve body 1 be equipped with valve seat 4, the valve seat 4 be equipped with built-up welding sealing surface 41, the built-up welding sealing surface 41 be stainless steel heap
Weld sealing surface.The junction of the butterfly plate 3 and built-up welding sealing surface 41 is equipped with soft seal ring 5, the built-up welding sealing surface 41 with
The sealing cooperation of soft seal ring 5, the built-up welding sealing surface 41 are obliquely installed towards 2 direction of valve rod, the soft seal ring 5 and heap
Pyramidal structure arranged at the top for welding the contact of sealing surface 41, the soft seal ring 5 and is obliquely installed towards 2 direction of valve rod
The sealing cooperation of built-up welding sealing surface 41, realizes that soft seal ring 5 gradually compresses when closed, until pressing at vertical run center
Tight amount is maximum.
The butterfly plate 3 is equipped with mounting portion, and the soft seal ring 5 is mounted on mounting portion, the soft seal ring 5
On be additionally provided with pressing plate 31, the soft seal ring 5 is mounted between mounting portion and pressing plate 31.
Be additionally provided between the mounting portion and pressing plate 31 adjust screw 32,32 adjust installation portion of adjusting screw with
Spacing between pressing plate 31 is to realize the adjusting of the tightness of soft seal ring 5 and built-up welding sealing surface 41.
There are offset dimensions A for the sealed section of the axis of the valve rod 2 and butterfly plate 3.
There are offset dimensions B for the runner axis of the axis of the valve rod 2 and valve body 1.
Welding block 6 is additionally provided on the runner of the valve body 1, the welding block 6 is equipped with full thread stud 61
With nut 62, the closed position for limiting butterfly plate 3 is realized in the full thread stud 61 and the limit cooperation of butterfly plate 3.
The utility model high-performance soft seal butterfly valve structure feature:
1. high-performance soft seal butterfly valve is using double eccentric structure designs, i.e. valve rod axis and butterfly plate sealed section offset dimensions
A, valve rod axis and valve flowing channel axis offset size B.
2. valve seal surface build-up welding stainless steel, soft seal ring material is rubber, passes through screw in compression by butterfly plate and pressing plate.
3. the seal degree between sealing ring and valve body sealing surface can be adjusted by adjusting screw.
4. the taper design of valve body sealing surface will be such that sealing ring gradually compresses when closed, until in vertical run centre bit
Crush is maximum when setting.
5. welding block on valve flowing channel, block is equipped with full thread stud, nut, limits butterfly by full thread stud
The closed position of plate.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (7)
1. a kind of high-performance soft seal butterfly valve, including valve body (1), the valve body (1) is interior to be equipped with valve rod (2), the valve rod
(2) butterfly plate (3) are equipped with, the valve body (1) is equipped with valve seat (4), which is characterized in that the valve seat (4) is equipped with heap
It welds sealing surface (41), the junction of the butterfly plate (3) and built-up welding sealing surface (41) is equipped with soft seal ring (5), the built-up welding
Sealing surface (41) and soft seal ring (5) sealing cooperate, and the built-up welding sealing surface (41) is obliquely installed towards valve rod (2) direction,
The soft seal ring (5) has pyramidal structure, the soft seal ring (5) with the top of the contact of built-up welding sealing surface (41)
Cooperate with built-up welding sealing surface (41) sealing being obliquely installed towards valve rod (2) direction, realizes soft seal ring (5) when closed gradually
It compresses, until crush is maximum at vertical run center.
2. high-performance soft seal butterfly valve according to claim 1, which is characterized in that the butterfly plate (3) is equipped with installation
Portion, the soft seal ring (5) are mounted on mounting portion, and pressing plate (31) are additionally provided in the soft seal ring (5), and described is soft
Sealing ring (5) is mounted between mounting portion and pressing plate (31).
3. high-performance soft seal butterfly valve according to claim 2, which is characterized in that the mounting portion and pressing plate (31) it
Between be additionally provided with and adjust screw (32), spacing between adjusting screw (32) adjust installation portion and pressing plate (31) is to realize
The adjusting of soft seal ring (5) and the tightness of built-up welding sealing surface (41).
4. high-performance soft seal butterfly valve according to claim 1, which is characterized in that the axis of the valve rod (2) and butterfly
There are offset dimensions A for the sealed section of plate (3).
5. high-performance soft seal butterfly valve according to claim 1, which is characterized in that the axis and valve of the valve rod (2)
There are offset dimensions B for the runner axis of body (1).
6. high-performance soft seal butterfly valve according to claim 1, which is characterized in that on the runner of the valve body (1) also
Equipped with welding block (6), the welding block (6) is equipped with full thread stud (61) and nut (62), the full thread
The closed position for limiting butterfly plate (3) is realized in stud (61) and butterfly plate (3) limit cooperation.
7. high-performance soft seal butterfly valve according to claim 1, which is characterized in that the built-up welding sealing surface (41) is not
Become rusty steel built-up welding sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820932188.7U CN208348530U (en) | 2018-06-15 | 2018-06-15 | High-performance soft seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820932188.7U CN208348530U (en) | 2018-06-15 | 2018-06-15 | High-performance soft seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208348530U true CN208348530U (en) | 2019-01-08 |
Family
ID=64884129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820932188.7U Active CN208348530U (en) | 2018-06-15 | 2018-06-15 | High-performance soft seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208348530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283365A (en) * | 2020-12-07 | 2021-01-29 | 江苏神通阀门股份有限公司 | Bidirectional sealing large-caliber triple-eccentric butterfly valve for high-speed gas |
-
2018
- 2018-06-15 CN CN201820932188.7U patent/CN208348530U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283365A (en) * | 2020-12-07 | 2021-01-29 | 江苏神通阀门股份有限公司 | Bidirectional sealing large-caliber triple-eccentric butterfly valve for high-speed gas |
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