CN201368210Y - Multidimensional sphere sealing butterfly valve - Google Patents
Multidimensional sphere sealing butterfly valve Download PDFInfo
- Publication number
- CN201368210Y CN201368210Y CNU2008202310731U CN200820231073U CN201368210Y CN 201368210 Y CN201368210 Y CN 201368210Y CN U2008202310731 U CNU2008202310731 U CN U2008202310731U CN 200820231073 U CN200820231073 U CN 200820231073U CN 201368210 Y CN201368210 Y CN 201368210Y
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- Prior art keywords
- valve
- sealing
- plate
- butterfly
- valve plate
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- Expired - Fee Related
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Abstract
The utility model discloses a multidimensional sphere sealing butterfly valve comprising a valve body, a valve plate and a sealing seat, wherein the valve plate is arranged in a valve body flow passage by a valve shaft, the sealing seat is arranged on one side of the valve body flow passage and is matched with a sealing surface of the valve plate to form a sealing pair, a vertical center line Z of the valve plate is used as a basic shaft, and a shaft line A of the valve shaft is positioned on the right of the vertical center line Z of the valve plate and deviates from a plane which passes through the vertical center line Z of the valve plate and is perpendicular to the valve plate. The multidimensional sphere sealing butterfly valve improves a positioning method of the sealing butterfly valve, avoids a difficult processing problem caused by positioning in a space eccentric conical mode and can deviate towards an axial direction or a radial direction, the sealing pair can be more simply and rapidly processed, and moreover, the valve seat of the sealing pair can be replaced; because a butterfly plate sealing surface and a butterfly plate are independent, the butterfly plate sealing surface can be replaced; when the butterfly plate sealing surface is flushed for a long period and damaged, only the butterfly plate or the sealing surface needs to be replaced, and the use is more convenient. The multidimensional sphere sealing butterfly valve is especially suitable for a high-temperature high-pressure environment.
Description
Technical field
The utility model relates to valve, relates to a kind of butterfly valve specifically.
Background technique
At present, known various eccentric-butterfly-valve is by valve body, valve plate, valve shaft: the sealing spoke adopts plane sealing structure, exist butterfly plate and valve seat to interfere and undercut that causes and the existing ten days of not opening in the using process, eccentric cone seal face seal, its eccentric angle does not have ripe Method for Accurate Calculation, during manufacturing, because its eccentric angle is difficult to accurately location and measurement, cause processing difficulties, the composite bed sealing material mainly contains asbestos, graphite and Chemical Felter can not be applied to the food medicine and other fields, two off-centre, the positive cone sealing configuration, butterfly plate is just being opened in 0-10 ° the scope, can not regulate rate-of flow, and has sealed at both ends up and down of butterfly plate, because the seal leakage that is produced is killed in the scratch of the sealing surface that sliding friction causes of seal.And employing composite material non-refractory high pressure.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned deficiency a kind of multi-dimensional ball-sealing butterfly valve is provided, and has solved the technical problem of equipment poorly sealed easy leakage, non-refractory high pressure.
The technical solution of the utility model is:
A kind of multi-dimensional ball-sealing butterfly valve, it comprises valve body, be installed in valve plate in the valve flowing channel by valve shaft, and be installed in valve flowing channel one side and match and form the sealing seat of sealing pair with the sealing surface of valve plate, vertical center line Z with valve plate is a standard shaft, valve shaft axis A is positioned at the vertical center line Z right side of valve plate, and depart from vertical center line Z and the plane vertical with valve plate by valve plate, be that valve shaft axis A and valve body are offset in the vertical center line Z-direction of valve plate, valve shaft axis A also is offset on valve plate X-axis and Y direction, so just improved the localization method of seal butterfly valve, avoid eccentric taper location, space to bring the problem of processing difficulties, can be towards the method for axial or radial deflection, make the processing of sealing pair simpler, quick.
Above-mentioned multi-dimensional ball-sealing butterfly valve, described sealing seat and sealing surface are the full-metallic hard sealing structures, and sealing seat and sealing surface are the full-metallic hard sealing structures, like this structure of seal butterfly valve and ring structure, not only high temperature resistant, high pressure, the working life of more improving valve.
Above-mentioned multi-dimensional ball-sealing butterfly valve, described sealing surface is spheroidal cross section sealing ring, and it is corresponding with the shape of sealing surface that sealing seat is curved surface, and sealing surface weld deposit is at the outer surface of valve plate, promptly built-up welding high strength face high-abrasive material forms sealing surface on valve plate, and the sealing seat assembly welding is on valve body.
The utility model has improved the localization method of seal butterfly valve, avoids eccentric taper location, space to bring the problem of processing difficulties, can make the processing of sealing pair simpler towards the method for axial or radial deflection, and is quick.Because the motion of valve plate adopts the lever form, after valve plate was closed, valve plate and valve seat formed the plane contact sealing, if valve shaft continues rotation, valve plate continues translation forward and reaches equilibrium of forces so, when working medium pressure is arranged, can also realize selfsealings, guarantee sealing reliability.The hypersphere seal butterfly valve is owing to adopt the bulk metal sealing, spheroidal cross section sealing ring, it and valve Cuo form sealing pair, such structure, under the high pressure operating mode, do not produce plastic deformation, under high temperature or the staggered operating mode of low temperature, there is not punching press stress, welding stress, elasticity is annealed or is stung bad embrittlement phenomenon, thoroughly solve traditional butterfly valve seal unreasonable structure and caused the disadvantage that the people are leaked, improved the reliability of valve seal greatly, and sealing pair of the present utility model not only valve seat can change but also because butterfly plate sealing surface and butterfly plate are independently, the butterfly plate sealing surface also can be changed, that is to say when the butterfly plate sealing surface is impaired through washing away for a long time, only need change butterfly plate or sealing surface gets final product, very easy to use.That the utility model is fit to is simple in structure, processing simple and fast, easy to use, long service life.Be fit to general industries such as metallurgy, oil, coal gas, chemical industry, water treatment, be particularly suitable at high temperature and high pressure environment.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a valve plate movement locus schematic representation of the present utility model;
Fig. 3 is that valve plate is at the schematic representation after valve shaft rotates on Fig. 2 basis.
Embodiment
As Fig. 1, Fig. 2 and a kind of multi-dimensional ball-sealing butterfly valve shown in Figure 3, it comprises valve body 1, be installed in valve plate 2 in valve body 1 runner by valve shaft 5, and be installed in valve body 1 runner, one side and match and form the sealing seat 4 of sealing pair with the sealing surface 7 of valve plate 2, vertical center line Z with valve plate 2 is a standard shaft, valve shaft axis A is positioned at the vertical center line Z right side of valve plate 2, and depart from vertical center line Z and the plane vertical by valve plate 2 with valve plate 2, be that valve shaft 5 axis A and valve body 1 are offset in the vertical center line Z-direction of valve plate 2, valve shaft 5 axis A also are offset on valve plate X-axis and Y direction, so just improved the localization method of seal butterfly valve, avoid eccentric taper location, space to bring the problem of processing difficulties, can be towards the method for axial or radial deflection, make the processing of sealing pair simpler, fast, described sealing seat and sealing surface 7 are full-metallic hard sealing structures, sealing seat and sealing surface 7 are full-metallic hard sealing structures, the structure of seal butterfly valve and ring structure like this, not only high temperature resistant, high pressure, more improve the working life of valve, described sealing surface 7 is spheroidal cross section sealing ring, it is corresponding with the shape of sealing surface 7 that sealing seat is curved surface, sealing surface 7 built-up welding are at the outer surface of valve plate 2, promptly built-up welding high strength face high-abrasive material forms sealing surface 7 on valve plate 2, and the sealing seat assembly welding is on valve body 1.
Working procedure of the present utility model is as follows, as Fig. 1, Fig. 2 and shown in Figure 3, Denso 6 passes on the valve plate of fixing by locating stud 32 by valve shaft 5, valve plate 2 is rotated around valve shaft 5, because valve shaft 5 departs from valve plate, therefore valve plate 2 by as Fig. 2 to shown in Figure 3, the movement locus of valve plate is an EFG curved surface as shown in Figures 2 and 3, thereby realizes the unlatching and the closure of valve plate.
Claims (3)
1, a kind of multi-dimensional ball-sealing butterfly valve, it comprises valve body (1), be installed in the valve plate (2) in the valve flowing channel and be installed in valve flowing channel one side and match with the sealing surface (7) of valve plate (2) by valve shaft (5) and form the sealing seat (4) of sealing pair, it is characterized in that: the vertical center line Z with valve plate (2) is a standard shaft, valve shaft axis A is positioned at the vertical center line Z right side of valve plate (2), and depart from by valve plate (2) vertical center line Z and with the vertical plane of valve plate (2).
2, multi-dimensional ball-sealing butterfly valve according to claim 1 is characterized in that: described sealing seat and sealing surface are the full-metallic hard sealing structures.
3, multi-dimensional ball-sealing butterfly valve according to claim 2 is characterized in that: described sealing surface (7) is spheroidal cross section sealing ring, and it is corresponding with the shape of sealing surface that sealing seat (4) is curved surface, and sealing surface (7) built-up welding is at the outer surface of valve plate (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008202310731U CN201368210Y (en) | 2008-12-23 | 2008-12-23 | Multidimensional sphere sealing butterfly valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008202310731U CN201368210Y (en) | 2008-12-23 | 2008-12-23 | Multidimensional sphere sealing butterfly valve |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201368210Y true CN201368210Y (en) | 2009-12-23 |
Family
ID=41487103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2008202310731U Expired - Fee Related CN201368210Y (en) | 2008-12-23 | 2008-12-23 | Multidimensional sphere sealing butterfly valve |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201368210Y (en) |
-
2008
- 2008-12-23 CN CNU2008202310731U patent/CN201368210Y/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20111223 |