CN2498416Y - Automatic compensative double-directional hard sealed butterfly gate - Google Patents
Automatic compensative double-directional hard sealed butterfly gate Download PDFInfo
- Publication number
- CN2498416Y CN2498416Y CN 01250291 CN01250291U CN2498416Y CN 2498416 Y CN2498416 Y CN 2498416Y CN 01250291 CN01250291 CN 01250291 CN 01250291 U CN01250291 U CN 01250291U CN 2498416 Y CN2498416 Y CN 2498416Y
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- CN
- China
- Prior art keywords
- valve
- sealing
- valve seat
- valve body
- valve 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
Disclosed is a self-compensation two-way hard seal butterfly valve, comprising a valve body, a valve seat arranged inside the valve body and a valve plate which is provided with a valve handle and is matched with the valve seat. The utility model is characterized in that the valve seat whose section takes the shape of an L, is directly arranged at one port of the valve body through a fixing piece; an adjust gasket is added between the valve seat and the valve body; the sealing face of the valve plate is a sphere structure; the inner annular end edge of the valve seat and the annular sealing surface of the valve plate form a sealing auxiliary; the spherical center of the valve plate is deflected to one side of the central line of the valve seat. Assimilating the technology and experience of metal butterfly valve both home and aboard, the utility model is mainly optimized in the sealing structure, and adopting the form of a deflected sphere being tangent with the inner hole of a column, the sealing face of the valve plate and the valve seat are arranged to be a wedge structure and the sealing auxiliary can self compensate, ensuring and improving the sealing performance and functions of start and stop; new sealing can also be realized by adding or removing a gasket. The utility model has the advantages of simple and reasonable structure, good sealing effect, small deflecting torque, long service life and convenient maintenance.
Description
(1) technical field
The utility model relates to a kind of valve, especially a kind of automatic compensate for bidirectional hard seal butterfly valve, and it is applicable to that the medium in multiple high, medium and low piezodielectric such as gas, liquid or the dust delivery line dams and throttling.
(2) background technique
Traditional metallic sealing butterfly valve, structure are comparatively complicated, and sealing pair adopts elastic seal ring more, and perhaps sealing surface is a cone structure, because intrinsic problem makes valve manufacturing process complexity on its structure, it is big to open and close moment; And the shortcoming of elastic seal ring is to be easy to fatigue and inefficacy, can't compensate after the wearing and tearing, and the working life of valve is shorter, increases cost of production.Open and close the big problem of moment in order to solve, some producer once released eccentric-butterfly-valve, but still exist complex structure, sealability is not good enough, the defective of inconvenient maintenance.Therefore, the butterfly valve of comparatively simple, the favorable sealing property of structure, long service life is expected to come out.
(3) summary of the invention
The purpose of this utility model is just at the problems referred to above and a kind of simple and reasonable, the good sealing effect of special development, moment of rotation are little, long service life, automatic compensate for bidirectional hard seal butterfly valve easy to maintenance.
The purpose of this utility model realizes by following scheme: this is the compensate for bidirectional hard seal butterfly valve automatically, the valve seat that comprises valve body, is located in the valve body reaches the valve plate that is coated with valve rod on its that matches with valve seat, wherein: the cross section of valve seat is L shaped, be directly installed on a port of valve body by fixed block, and between valve seat and valve body, be equipped with the adjustment packing ring, the sealing surface of valve plate is a spheric structure, the interior ring end of valve seat forms sealing pair along the sealing anchor ring with valve plate, and the sphere centre of valve plate is offset to valve seat center line one side.
In the utility model, two of valve body connects end face and is flange-type structure, so that be connected with pipeline.
The utility model is on the technical experience basis of drawing domestic and international metal butterfly valve, main sealing configuration has been carried out optimal design, adopt inclined to one side sphere and the tangent form of cylindrical body endoporus, make the sealing surface and the valve seat of valve plate form wedge-shaped structure, in the actual application,, can realize sealing pair energy automatic compensation function because of sealing surface wear, be guaranteed and improve thereby make sealability and open and close function, also can adjust packing ring and realize new sealing by increase and decrease.Because there are an eccentricity value e in the sphere centre of valve plate and the center line of valve seat, can hightail valve seat, the fast opening valve at the moment valve plate of opening.This valve has been broken through the routine on traditional butterfly valve pressurized direction, can reduce to open and close moment greatly, prolongs valve working life.
The utility model has been owing to adopted such scheme, therefore compares with existing similar valve to have the following advantages:
1, simple and reasonable for structure, low cost of manufacture, easy to maintenance.
2, really realized bidirectional metal hard-sealing, sealability is stable more, reliable.
3, sealing pair wearing and tearing are little, and sealing station can compensate automatically, prolonged the working life of valve,
Also can adjust pad and realize new sealing by increase and decrease.
4, have characteristics such as high temperature resistant, corrosion-resistant, wear-resistant, that performance is good, can be widely used in metallurgy,
In the pipe-line systems such as chemical industry, oil, combustion gas, water supply.
(4) description of drawings
Fig. 1 is a structural front view of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure: 1 is valve rod, and 2 for adjusting packing ring, and 3 is valve seat, and 4 is valve plate, and 5 is valve body.
(5) specific embodiments
The utility model is described further below in conjunction with accompanying drawing:
As Fig. 1, shown in 2: this is the compensate for bidirectional hard seal butterfly valve automatically, comprise valve body (5), the valve seat (3) that is located in the valve body reaches the valve plate (4) that is coated with valve rod (1) on its that matches with valve seat, wherein: the cross section of valve seat (3) is L shaped, be directly installed on a port of valve body (5) by fixed block, and between valve seat (3) and valve body (5), be equipped with and adjust packing ring (2), the sealing surface of valve plate (4) is a spheric structure, the interior ring end of valve seat (3) forms sealing pair along the sealing anchor ring with valve plate (4), the sphere centre O1 of valve plate (4) is offset to valve seat (3) center line O one side, one eccentricity value e is arranged, two of valve body (5) connects end face and is flange-type structure, so that be connected with pipeline.
Claims (2)
1, a kind of automatic compensate for bidirectional hard seal butterfly valve, it comprises valve body (5), the valve seat (3) that is located in the valve body reaches the valve plate (4) that is coated with valve rod (1) on its that matches with valve seat, it is characterized in that: the cross section of valve seat (3) is L shaped, be directly installed on a port of valve body (5) by fixed block, and between valve seat (3) and valve body (5), be equipped with and adjust packing ring (2), the sealing surface of valve plate (4) is a spheric structure, the interior ring end of valve seat (3) forms sealing pair along the sealing anchor ring with valve plate (4), and the sphere centre O1 of valve plate (4) is offset to valve seat center line O one side.
2, automatic compensate for bidirectional hard seal butterfly valve according to claim 1 is characterized in that: two of valve body (5) connects end face and is flange-type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250291 CN2498416Y (en) | 2001-08-03 | 2001-08-03 | Automatic compensative double-directional hard sealed butterfly gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250291 CN2498416Y (en) | 2001-08-03 | 2001-08-03 | Automatic compensative double-directional hard sealed butterfly gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2498416Y true CN2498416Y (en) | 2002-07-03 |
Family
ID=33660486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01250291 Expired - Fee Related CN2498416Y (en) | 2001-08-03 | 2001-08-03 | Automatic compensative double-directional hard sealed butterfly gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2498416Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301380C (en) * | 2004-11-16 | 2007-02-21 | 陈国顺 | Hard sealing two-way disc valve |
| CN109973668A (en) * | 2019-04-30 | 2019-07-05 | 自贡新比隆阀门有限公司 | It is a kind of than grand plate valve |
-
2001
- 2001-08-03 CN CN 01250291 patent/CN2498416Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301380C (en) * | 2004-11-16 | 2007-02-21 | 陈国顺 | Hard sealing two-way disc valve |
| CN109973668A (en) * | 2019-04-30 | 2019-07-05 | 自贡新比隆阀门有限公司 | It is a kind of than grand plate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |