CN101070921A - Spherical butterfly valve - Google Patents
Spherical butterfly valve Download PDFInfo
- Publication number
- CN101070921A CN101070921A CN 200710011599 CN200710011599A CN101070921A CN 101070921 A CN101070921 A CN 101070921A CN 200710011599 CN200710011599 CN 200710011599 CN 200710011599 A CN200710011599 A CN 200710011599A CN 101070921 A CN101070921 A CN 101070921A
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- Prior art keywords
- valve
- valve seat
- spherical
- seat
- plate
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Abstract
The invention relates to a spherical butterfly valve, comprising valve body, valve plate, valve seat, seal ring, and valve rod, where the valve plate is a sphere whose two sides are cut out by a certain thickness with the center of sphere of spherical valve as a symmetrical center, the upper end of the valve plate is linked with the valve rod, the valve seat is a spherical valve seat, the outer circumferential surface of the valve plate makes surface contact cooperation with the valve seat, and the valve seat is equipped with the seal ring. And the invention has features of reasonable structure design, small volume, and strong sealing property, able to be widely applied to valve industry.
Description
Technical field
The present invention relates to a kind of butterfly valve, particularly related to a kind of butterfly valve that adopts the sphere valve plate.
Background technique
Ball valve and butterfly valve are the two big main forces of valve industry.The advantage of ball valve is a good airproof performance, high pressure resistant, but feed consumption is many, price is high; The butterfly valve advantage be in light weight, price is low, but poor sealing, particularly tight butterfly valve is difficult to tight, and pressure-bearing is low, easily reveals.Conventional butterfly valve seal is to compress sealing by valve plate and valve seat, the form of valve seat has taper or ring, valve plate is ring stacked-plate type or back taper type, which kind of form no matter adopt is, all be a loop wire when valve plate and valve base sealing, the sealing loop wire is too narrow, poor sealing, and it is withstand voltage low, fragile.Curved surface is adopted in the valve plate both sides that also have in the prior art, but the valve plate both sides are not whole spheres, and valve plate still is not that face contacts with the cooperation of valve seat.
Summary of the invention
The present invention has overcome deficiency of the prior art, has proposed a kind of reasonable in design, volume is little, sealing is good spherical butterfly valve.
In order to address the above problem, the present invention by the following technical solutions:
A kind of spherical butterfly valve, comprise valve body, valve rod, valve plate, valve seat, valve seat, seal ring, it is characterized in that, the valve plate of this spherical butterfly valve is that the centre of sphere with ball valve is that symmetry center cuts the certain thickness spherical surface body in both sides, match with valve rod and be connected in the valve plate upper end, valve plate external peripheral surface and valve seat (3) and valve seat (5) adopt the face contact matching to form two annular sealing strips, and valve seat (3) and valve seat (5) are provided with seal ring.
Described valve seat (3) and valve seat (5) adopt the annular sphere valve seat.
Advantage of the present invention is:
1, valve plate adopts face seal to cooperate with valve seat, has kept the good advantage of ball valve sealing.
2, adopt the valve plate of the part of ball valve, reduced volume, reduced cost, improved the benefit of enterprise as this spherical butterfly valve.
Description of drawings
Fig. 1 is a structural profile schematic representation of the present invention.
Among the figure: 1, valve rod 2, seal ring 3, valve seat 4, valve plate 5, valve seat 6, valve body
Embodiment
A kind of spherical butterfly valve comprises valve body 6, valve plate 4, valve seat 3, valve seat 5, seal ring 2, valve rod 1.The valve plate 4 of this spherical butterfly valve makes spherical surface body, be equivalent to a whole ball, with the centre of sphere is symmetry center, downcut the spheroid part of both sides same thickness, spheroid of ring-type is as the valve plate 4 of this spherical butterfly valve in the middle of it, valve plate 4 upper ends are connected with valve rod 1, and valve plate 4 external peripheral surfaces and valve seat 3 and valve seat 5 adopt the face contact matching, and valve seat 3 and valve seat 5 are provided with seal ring 2.
The valve seat 3 of spherical butterfly valve and valve seat 5 adopt ball seat, have become twice annular face seal band with regard to the linear sealing that makes original butterfly valve and valve seat like this, have both guaranteed excellent sealing performance, do not take redundant space again, have the feature performance benefit of ball valve and butterfly valve simultaneously.
Claims (2)
1, a kind of spherical butterfly valve, comprise valve body (6), valve rod (1), valve plate (4), valve seat (3), valve seat (5), seal ring (2), it is characterized in that, the valve plate of this spherical butterfly valve (4) is that the centre of sphere with ball valve is that symmetry center cuts the certain thickness spherical surface body in both sides, match with valve rod (1) and be connected in valve plate (4) upper end, valve plate (4) external peripheral surface and valve seat (3) and valve seat (5) adopt the face contact matching to form two annular sealing strips, and valve seat (3) and valve seat (5) are provided with seal ring (2).
2, spherical butterfly valve according to claim 1 is characterized in that, described valve seat (3) and valve seat (5) adopt the annular sphere valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710011599 CN101070921A (en) | 2007-06-08 | 2007-06-08 | Spherical butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710011599 CN101070921A (en) | 2007-06-08 | 2007-06-08 | Spherical butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101070921A true CN101070921A (en) | 2007-11-14 |
Family
ID=38898272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710011599 Pending CN101070921A (en) | 2007-06-08 | 2007-06-08 | Spherical butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101070921A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939485A (en) * | 2010-04-30 | 2013-02-20 | 费希尔控制国际公司 | Ball valve seal assembly and ball valve comprising same |
| CN108490991A (en) * | 2018-05-10 | 2018-09-04 | 山西省水利水电科学研究院 | A kind of urban flood control and drainage alarm system |
-
2007
- 2007-06-08 CN CN 200710011599 patent/CN101070921A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939485A (en) * | 2010-04-30 | 2013-02-20 | 费希尔控制国际公司 | Ball valve seal assembly and ball valve comprising same |
| CN102939485B (en) * | 2010-04-30 | 2014-09-03 | 费希尔控制国际公司 | Ball valve seal assembly and ball valve comprising same |
| CN108490991A (en) * | 2018-05-10 | 2018-09-04 | 山西省水利水电科学研究院 | A kind of urban flood control and drainage alarm system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |