CN208546533U - Multiple-layer metal sealed butterfly valve - Google Patents
Multiple-layer metal sealed butterfly valve Download PDFInfo
- Publication number
- CN208546533U CN208546533U CN201820809860.3U CN201820809860U CN208546533U CN 208546533 U CN208546533 U CN 208546533U CN 201820809860 U CN201820809860 U CN 201820809860U CN 208546533 U CN208546533 U CN 208546533U
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- CN
- China
- Prior art keywords
- valve body
- valve
- sealing
- gland
- butterfly plate
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of multiple-layer metal sealed butterfly valves, butterfly plate is equipped with by pin shaft on valve rod in the inner cavity of valve body, the left end of the valve body is equipped with bracket, gland is equipped with by studs between valve body and bracket, front shaft sleeve is equipped between valve body and valve rod, filler is equipped between gland and front shaft sleeve, the right end of the valve body is equipped with rear end cap by screw, rear axle housing is arranged between valve body and valve rod；Gland is equipped with by screw on the butterfly plate, sealing ring is equipped between butterfly plate and gland, the contact surface of valve body and sealing ring is oblique cone ellipse sealing surface and forms sealing pair.There is butterfly plate sealing ring the two-fold advantage of metal sealing and elastic packing to all have excellent sealing performance no matter under high temperature or low temperature condition；Tilting conical valve seat small using flow resistance, sealed reliable and three dimension eccentric structure, valve seat and butterfly plate have the sealing function for the more closing the more tight almost without friction.
Description
Technical field
The utility model relates to a kind of multiple-layer metal sealed butterfly valves.
Background technique
Metallic multilayer time sealed butterfly valve is in metallic seal butterfly valve using commonplace structure.Be primarily adapted for use in petroleum,
On chemical industry, electric power, metallurgy and district heating system pipeline, as adjusting and equipment of shutting off uses.Existing metallic multilayer time sealing
The lamination sealing auxiliary material of butterfly valve is installed using non-metallic gasket (such as high-strength asbestos board or composite graphite) and stainless steel substrates interlayer
On butterfly plate, when butterfly valve standard-sized sheet, medium is directly flushed on butterfly plate interlayer sealing surface, causes to wash away Multi-layer sealing face
Abrasion, resistance to erosion and wear-resisting property are poor, and sealing performance is unreliable.
Utility model content
Technical problem to be solved by the utility model is: overcoming the deficiencies in the existing technology, a kind of multiple-layer metal is provided
Sealed butterfly valve.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of multiple-layer metal sealed butterfly valve, tool
There is valve body, be equipped with valve rod in the valve body, butterfly plate is equipped with by pin shaft on the valve rod in the inner cavity of valve body, the valve body
Left end is equipped with bracket, gland is equipped with by studs between valve body and bracket, before being equipped between valve body and valve rod
Axle sleeve, is equipped with filler between gland and front shaft sleeve, the right end of the valve body is equipped with rear end cap, valve body and valve by screw
Rear axle housing is arranged between bar；Gland is equipped with by screw on the butterfly plate, sealing ring, valve body are equipped between butterfly plate and gland
Contact surface with sealing ring is oblique cone ellipse sealing surface and forms sealing pair.
Further, it is equipped with split annulus between the rear axle housing and rear end cap, is set between rear end cap and split annulus
There is Graphite pad.
Further, check pin is also equipped on the bracket.
The beneficial effects of the utility model are: the butterfly plate sealing ring of the utility model special designing, have metal sealing and
The two-fold advantage of elastic packing all has excellent sealing performance no matter under high temperature or low temperature condition；It is small using flow resistance, close
Reliable tilting conical valve seat and three dimension eccentric structure, valve seat and butterfly plate are sealed almost without friction, there is the sealing function for the more closing the more tight
Energy；Valve body material is replaced, using the applicable different medium of different sealing circle composite intermediate layer；Flexible operation, it is laborsaving, conveniently, the service life
Long, zero leakage；It is high temperature resistant, corrosion-resistant.
Detailed description of the invention
The present invention will be further described with embodiment with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the utility model.
2. valve rod in figure, 3. check pins, 6. brackets, 10. glands, 14. fillers, 15. front shaft sleeves, 16. valve bodies, 17.
Sealing ring, 18. glands, 20. pin shafts, 21. butterfly plates, 22. rear axle housings, 23. split annulus, 24. Graphite pads, 26. rear end caps.
Specific embodiment
The utility model is further described presently in connection with attached drawing.These attached drawings are simplified schematic diagram only to show
Meaning mode illustrates the basic structure of the utility model, therefore it only shows composition related with the utility model.
A kind of multiple-layer metal sealed butterfly valve as shown in Figure 1 has valve body 16, is equipped with valve rod 2 in the valve body 16,
Butterfly plate 21 is equipped with by pin shaft 20 on valve rod 2 in the inner cavity of valve body 16, the left end of the valve body 16 is equipped with bracket 6, valve
Gland 10 is equipped with by studs between body 16 and bracket 6, front shaft sleeve 15 is equipped between valve body 16 and valve rod 2, is filled out
Expect to be equipped with filler 14 between gland 10 and front shaft sleeve 15, the right end of the valve body 16 is equipped with rear end cap 26, valve body by screw
Rear axle housing 22 is arranged between 16 and valve rod 2；Gland 18, butterfly plate 21 and gland 18 are equipped with by screw on the butterfly plate 21
Between be equipped with sealing ring 17, the contact surface of valve body 16 and sealing ring 17 is oblique cone ellipse sealing surface and forms sealing pair.
Gland 18 is equipped with by screw on butterfly plate 21, sealing ring 17 is equipped between butterfly plate 21 and gland 18.
Check pin 3 is also equipped on bracket 6.
Specific 21 upper seal 17 of butterfly plate is pressed by stainless sheet steel and soft graphite, i.e., rigid with metal
Property, while having mazy leakproofness again, when applying torque to valve rod 2, sealing ring 17 and valve body 16 generate elastic voussoir and imitate
It answers, makes sealing ring 17 that soft dynamic and radial compression occur, to realize most strict cutting with minimal torque.
Valve body 16 is an oblique cone ellipse sealing surface, is formed with the circular elastic seal ring 17 being inlaid on butterfly plate 21
Sealing pair.Sealing ring 17 can in the slot of butterfly plate 21 radial floating.When the valve is closed, sealing ring 17 is oval with oblique cone first
The short axle of sealing surface contacts, and as the rotation of valve rod 2 gradually inwardly pushes away sealing ring 17, forces sealing ring 17 again and oblique cone
The long axis of oval sealing surface contacts, and eventually leads to sealing ring 17 and all contacts with oblique cone ellipse sealing surface cover.Its sealing
It is deformed and reaches by sealing ring 17.It therefore, all can be by when valve body 16 or butterfly plate 21 are deformed at low temperature
Seal 17 carrys out absorption compensation, will not generate leakage and stuck phenomenon.This flexible deformation disappears immediately when the valve is open, is opening
It is basic during closing to rub without opposite, therefore long service life, while also eliminating the sealing ring in 90 ° of rotary courses of butterfly plate 21
17 and with the abrasion between seat.
Above embodiment is only to illustrate the technical ideas and features of the present invention, and its object is to allow be familiar with this skill
The personage of art can understand the content of the utility model and be implemented, and the protection model of the utility model can not be limited with this
It encloses, all equivalent change or modifications according to made by the spirit of the present invention essence should all cover the protection model in the utility model
In enclosing.
Claims (3)
1. a kind of multiple-layer metal sealed butterfly valve has valve body (16), valve rod (2), feature are equipped in the valve body (16)
It is: is equipped with butterfly plate (21) on the valve rod (2) in the inner cavity of the valve body (16) by pin shaft (20), the valve body (16)
Left end be equipped with bracket (6), gland (10), valve body are equipped with by studs between valve body (16) and bracket (6)
(16) front shaft sleeve (15) are equipped between valve rod (2), are equipped with filler (14) between gland (10) and front shaft sleeve (15), it is described
The right end of valve body (16) is equipped with rear end cap (26) by screw, and rear axle housing (22) are arranged between valve body (16) and valve rod (2)；
It is equipped with gland (18) on the butterfly plate (21) by screw, is equipped with sealing ring (17) between butterfly plate (21) and gland (18), valve
Body (16) and the contact surface of sealing ring (17) are oblique cone ellipse sealing surface and form sealing pair.
2. multiple-layer metal sealed butterfly valve according to claim 1, it is characterised in that: the rear axle housing (22) and rear end
It covers between (26) and is equipped with split annulus (23), be equipped with Graphite pad (24) between rear end cap (26) and split annulus (23).
3. multiple-layer metal sealed butterfly valve according to claim 1, it is characterised in that: also installed on the bracket (6)
There are check pin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820809860.3U CN208546533U (en) | 2018-05-28 | 2018-05-28 | Multiple-layer metal sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820809860.3U CN208546533U (en) | 2018-05-28 | 2018-05-28 | Multiple-layer metal sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208546533U true CN208546533U (en) | 2019-02-26 |
Family
ID=65420477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820809860.3U Expired - Fee Related CN208546533U (en) | 2018-05-28 | 2018-05-28 | Multiple-layer metal sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208546533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973714A (en) * | 2019-04-23 | 2019-07-05 | 蚌埠中光电科技有限公司 | A kind of butterfly valve for float glass lehr |
-
2018
- 2018-05-28 CN CN201820809860.3U patent/CN208546533U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973714A (en) * | 2019-04-23 | 2019-07-05 | 蚌埠中光电科技有限公司 | A kind of butterfly valve for float glass lehr |
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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: 20190226 Termination date: 20190528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |