CN202040346U - Sealing pair of eccentric flange butterfly valve - Google Patents
Sealing pair of eccentric flange butterfly valve Download PDFInfo
- Publication number
- CN202040346U CN202040346U CN2011201083183U CN201120108318U CN202040346U CN 202040346 U CN202040346 U CN 202040346U CN 2011201083183 U CN2011201083183 U CN 2011201083183U CN 201120108318 U CN201120108318 U CN 201120108318U CN 202040346 U CN202040346 U CN 202040346U
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- CN
- China
- Prior art keywords
- rubber seal
- dovetail groove
- valve
- shape
- seal ring
- 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 discloses a sealing pair of an eccentric flange butterfly valve, which comprises a valve body, a valve plate and a rubber seal ring, wherein the valve body is provided with a dovetail groove, a stainless-steel steel ring is embedded on an ex-circle of the valve plate, and the rubber seal ring is sealed onto the ex-circle of the valve plate, embedded in the dovetail groove and in a reversed-V-shape. Protrusions which are in comb teeth shapes and matched with each other are formed on inner surfaces on two sides of the dovetail groove and the outer surfaces on two sides of the rubber seal ring. One side of the rubber seal ring far away from the baffle is hollow, protrusions are formed on the inner surfaces on two sides of the rubber seal ring respectively, and adhesives capable of being cured are filled in the gap between the rubber seal ring and the dovetail groove. By means of the sealing pair of the eccentric flange butterfly valve, a rubber seal ring can be fixedly fixed in the dovetail groove and not be taken out by grinding or torn, thereby prolonging service life of the valve.
Description
Technical field
The utility model belongs to valve technology field, particularly relates to a kind of sealing pair of eccentric flange butterfly valve.
Background technique
As everyone knows, the present both at home and abroad sealing pair of the eccentric flange butterfly valve great majority "T"-shaped seal rings that adopt rubber to make, and be pressed on the valve plate with the bolt edge.When opening/shutting valve, owing to the variation of flow velocity and pressure or owing to reasons such as pumping head instabilities, fluid can produce very unstable state or vibrational state, thereby cause the valve plate vibrations, cause the bolt looseness of fastening rubber seal seat, even come off from valve plate.Another sealing pair adopts " ∧ " shape rubber seal, and it is bumped in the dovetail groove of valve body so that solve the problem that the T-shape seal ring comes off easily.But, the new problem that this structure produced is: in the valve opening and closing process, owing between valve plate and " ∧ " shape rubber seal, open and close and produce bigger frictional force in the contact process, take out of or tear so be easy to make " ∧ " shape rubber seal from dovetail groove, to be ground to squeeze, and then cause valve invalidation.
Summary of the invention
The utility model provides the sealing pair of avoiding " ∧ " shape rubber seal to be ground the crowded eccentric flange butterfly valve of taking out of or tearing from the valve body dovetail groove for solving the technical problem that exists in the known technology.
For this reason, the technical solution of the utility model is as follows:
A kind of sealing pair of eccentric flange butterfly valve, this eccentric flange butterfly valve comprises the valve plate of the valve body that has dovetail groove, cylindrical edge hoop stainless steel steel ring, form sealing with the valve plate cylindrical and be installed in rubber seal in the described dovetail groove, the cross section of this rubber seal is " ∧ " shape, be formed with the 1st projection of broach shape on the internal surface of the both sides of described dovetail groove, be formed with the 2nd projection of broach shape on the outer surface of the both sides of described rubber seal, the shape of described the 2nd projection and the 1st projection adapts.
Preferably, being shaped as of described rubber seal cross section is hollow away from valve plate one side, is formed with the projection of broach shape on the internal surface of both sides respectively, is filled with curable adhesive at the gap location of this rubber seal and described dovetail groove.Described curable adhesive is an epoxy resin.
More preferably, described rubber seal cross section is shaped as " E " shape of the protrusion-shaped one-tenth symmetry of the inboard broach shape on the internal surface of both sides.
In the utility model, because the dovetail groove of body cavity valve seat location forms the side of band broach, corresponding rubber seal side also has broach, be formed with the projection of broach shape in addition on the internal surface of rubber seal both sides respectively, gap location at rubber seal and dovetail groove is filled with curable adhesive, thereby rubber seal is securely fixed in the dovetail groove, can is not ground to squeeze and take out of or tear, improved the working life of valve.
Description of drawings
Fig. 1 is the cross-sectional view of eccentric flange butterfly valve in the utility model;
Fig. 2 is the structure for amplifying schematic representation at the I place among Fig. 1.
Embodiment
Be elaborated below in conjunction with the structure of accompanying drawing to the sealing pair of eccentric flange butterfly valve of the present utility model.
As depicted in figs. 1 and 2, the eccentric flange butterfly valve, comprise valve body 10, valve plate 11, circular boop weldering stainless steel steel ring 12 outside valve plate, on valve body 10, be formed with dovetail groove 13, rubber seal 14 forms in the dovetail groove 13 that seals and be installed on the valve body 10 with the cylindrical of valve plate 10, and the cross section of rubber seal 14 is " ∧ " shape.Form the 1st projection 15 of broach shape on the internal surface of dovetail groove 13 both sides, be formed with the 2nd projection 16, the 2 projections 16 of broach shape and the shape of the 1st projection 15 on the outer surface of rubber seal 14 both sides and adapt.
As shown in Figure 2, being shaped as of the cross section of rubber seal 14, away from valve plate 11 1 sides is hollow, be formed with the projection of broach shape on the internal surface of both sides respectively, in this embodiment, broach shape protrusion-shaped on the internal surface of both sides becomes " E " shape of symmetry, is filled with curable epoxy at the gap location of rubber seal 14 and dovetail groove.
During installation, elder generation binds round the stainless steel steel ring tightly and is welded on the valve plate cylindrical, and by annotating towards the sealing between epoxy resin formation valve plate and the steel ring in hoop welding steel circle the inside.Then outer side surface is had the rubber seal that broach shape inboard has symmetry " E " shape and put into the dovetail groove that has the broach shape on the valve body, then adjust the valve plate position, make the valve plate cylindrical corresponding fully with the sealing surface of valve seals.After adjusting and fixing the valve plate position, the epoxy resin with certain pressure is filled by the auxiliary hole notes in behind at the body cavity dovetail groove, the epoxy resin that notes fill is after the pressurize of necessity, solidifying, between valve plate and valve body rubber seal, form sealing uniformly, thereby form Drop-proof, the anti-safe and reliable sealing configuration that grinds extruding groove.
Claims (4)
1. the sealing pair of an eccentric flange butterfly valve, this eccentric flange butterfly valve comprises the valve plate of the valve body that has dovetail groove, cylindrical edge hoop stainless steel steel ring, form sealing with the valve plate cylindrical and be installed in rubber seal in the described dovetail groove, the cross section of this rubber seal is " ∧ " shape, it is characterized in that: the 1st projection that is formed with the broach shape on the internal surface of the both sides of described dovetail groove, be formed with the 2nd projection of broach shape on the outer surface of the both sides of described rubber seal, the shape of described the 2nd projection and the 1st projection adapts.
2. sealing pair according to claim 1, it is characterized in that: being shaped as of described rubber seal cross section, away from valve plate one side is hollow, be formed with the projection of broach shape on the internal surface of both sides respectively, be filled with curable adhesive at the gap location of this rubber seal and described dovetail groove.
3. sealing pair according to claim 2 is characterized in that: being shaped as of described rubber seal cross section, the protrusion-shaped of the inboard broach shape on the internal surface of both sides becomes " E " shape of symmetry.
4. according to claim 2 or 3 described sealing pairs, it is characterized in that: described curable adhesive is an epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201083183U CN202040346U (en) | 2011-04-13 | 2011-04-13 | Sealing pair of eccentric flange butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201083183U CN202040346U (en) | 2011-04-13 | 2011-04-13 | Sealing pair of eccentric flange butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040346U true CN202040346U (en) | 2011-11-16 |
Family
ID=44967789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201083183U Expired - Fee Related CN202040346U (en) | 2011-04-13 | 2011-04-13 | Sealing pair of eccentric flange butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040346U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678948A (en) * | 2012-06-11 | 2012-09-19 | 格朗富（苏州）集团有限公司 | Butterfly valve |
| CN102691801A (en) * | 2012-06-11 | 2012-09-26 | 格朗富（苏州）集团有限公司 | Method for maintaining butterfly valve sealing mechanism on line |
| CN102691802A (en) * | 2012-06-11 | 2012-09-26 | 格朗富（苏州）集团有限公司 | Processing method of butterfly valve sealing mechanism |
| CN105054778A (en) * | 2015-08-17 | 2015-11-18 | 广东新宝电器股份有限公司 | Water jug |
| CN108547991A (en) * | 2018-07-17 | 2018-09-18 | 江苏应流机械制造有限责任公司 | A kind of valve deck of forging ball valve |
| KR102267545B1 (en) * | 2021-01-06 | 2021-06-22 | 주식회사 피엔케이이엔지 | Seat for control valve and control valve including the same |
-
2011
- 2011-04-13 CN CN2011201083183U patent/CN202040346U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678948A (en) * | 2012-06-11 | 2012-09-19 | 格朗富（苏州）集团有限公司 | Butterfly valve |
| CN102691801A (en) * | 2012-06-11 | 2012-09-26 | 格朗富（苏州）集团有限公司 | Method for maintaining butterfly valve sealing mechanism on line |
| CN102691802A (en) * | 2012-06-11 | 2012-09-26 | 格朗富（苏州）集团有限公司 | Processing method of butterfly valve sealing mechanism |
| CN105054778A (en) * | 2015-08-17 | 2015-11-18 | 广东新宝电器股份有限公司 | Water jug |
| CN105054778B (en) * | 2015-08-17 | 2017-07-07 | 广东新宝电器股份有限公司 | Water jug |
| CN108547991A (en) * | 2018-07-17 | 2018-09-18 | 江苏应流机械制造有限责任公司 | A kind of valve deck of forging ball valve |
| KR102267545B1 (en) * | 2021-01-06 | 2021-06-22 | 주식회사 피엔케이이엔지 | Seat for control valve and control valve including the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20160413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |