CN2563376Y - Three dimension eccentric full metal sealed butterfly valve - Google Patents
Three dimension eccentric full metal sealed butterfly valve Download PDFInfo
- Publication number
- CN2563376Y CN2563376Y CN 02278888 CN02278888U CN2563376Y CN 2563376 Y CN2563376 Y CN 2563376Y CN 02278888 CN02278888 CN 02278888 CN 02278888 U CN02278888 U CN 02278888U CN 2563376 Y CN2563376 Y CN 2563376Y
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- seal
- valve body
- eccentric
- 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 three dimension eccentric full metal sealed butterfly valve which comprises a valve body (4), a valve plate (9) arranged inside a channel of the valve body through a valve stem (7) which is connected with the valve plate (9), and a sealing valve seat (11) which is arranged inside the channel of the valve body and forms a seal pair by matching with a sealing ring (5), wherein, the valve stem (7) is arranged inside the valve body (4) by adopting the eccentric means, with the eccentric distance on the axial direction of E and the eccentric distance on the radial direction of e; a sealing ring surface of the sealing valve seat (11) and a sealing ring surface of the sealing ring (5) matching with the sealing ring surface of the sealing valve seat (11) all take the structure of an oblique conical ring; the conical vertex is eccentrically arranged on one side of a center line of the channel of the valve body; the distance L of the conical vertex and the center line of the channel of the valve body is smaller than or equal to the mean range from the center line of the channel of the valve body to a conical torus in the sealing valve seat (11). The utility model has the advantages that the friction between the seal pair is close to zero; the butterfly valve not only can be suitable for working conditions of high pressure, intermediate pressure and low pressure but also can work normally under different temperature conditions and is not limited by the current direction of media; bidirectional sealing can be realized.
Description
(1) technical field
The utility model relates to a kind of metallic sealing butterfly valve, relates to the eccentric full-metallic seal butterfly valve of a kind of three-dimensional specifically.
(2) background technique
The sealing pair of traditional metallic sealing butterfly valve is realized sealing by positive extruding.The valve plate of this class formation very easily causes the scuffing of two-phase matching trim when opening rotation, will cause seal failure when serious.And this structure is under high-temperature condition, often because of the expansion of material, kills phenomenon and valve takes place, and causes the valve can't proper functioning.
(3) summary of the invention
The purpose of this utility model provides a kind of sealing pair to rub near zero in opening and closing rotary course with regard to being to overcome above-mentioned deficiency of the prior art, can under the high, medium and low voltage operating conditions, keep excellent sealing performance, can adapt under condition of different temperatures proper functioning again and not be subjected to MEDIA FLOW, can realize the three-dimensional eccentric full-metallic seal butterfly valve of two way sealed to restriction.
The purpose of this utility model can realize by following measure:
The eccentric full-metallic seal butterfly valve of three-dimensional of the present utility model comprises valve body, is installed in valve plate in the valve flowing channel by coupled valve rod, and the seal valve seat that is arranged in the valve flowing channel formation sealing pair that matches with seal ring; Wherein said valve rod adopts eccentric mode to be installed in the valve body, and its axial throw of eccentric is E, and the radial disbalance distance is e; The sealing anchor ring of the sealing anchor ring of described seal valve seat and the seal ring that matches with it is the oblique cone ring structure, its conical point is offset to valve flowing channel center line one side, and its conical point apart from the distance L of valve flowing channel center line smaller or equal to the valve flowing channel center line to the equal distance between the seal valve seat inner cone anchor ring.
Described equal distance is the distance of the middle anchor ring of seal valve seat inner cone anchor ring to the valve flowing channel centreline space.
The sealing anchor ring of the sealing anchor ring of seal valve seat described in the utility model and the seal ring that matches with it is the oblique cone ring structure, and its cone-apex angle α is 20 °-25 °.
The axial throw of eccentric that is adopted in the utility model is E, and the radial disbalance distance is e.The selection of described throw of eccentric should be determined through calculating according to the size of valve aperture.
Three-dimensional eccentric structure of the present utility model can realize that the extruding of two sealing surface leading surfaces and face forms sealing, thereby effectively avoid between the sealing pair taking place mutual friction phenomenon, realize true zero friction, can fundamentally stop to kill the generation of phenomenon because of the valve that material is caused by temperatures involved appearance expansion, make valve of the present utility model under the operating conditions of high, medium and low voltage, to keep excellent sealing performance, also can be implemented under the various condition of different temperatures all can proper functioning purpose.In addition, adopt purpose axially eccentric and radial disbalance also to be to have solved when valve plate is in full open position in the utility model, owing to two sealing surfaces are in the problem that incomplete disengaged position makes it to be squeezed.Moreover the differential pressure action that the setting of radial disbalance also can make valve plate make full use of medium when closing improves its sealability, makes its sealing more reliable.Valve of the present utility model is not subjected to MEDIA FLOW to restriction, can realize two way sealed, can be used as shutoff valve or modulating valve and uses.
(4) description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
1 is to connect dish among the figure, the 2nd, and filler, the 3rd, composite shaft sleeve, the 4th, valve body, the 5th, seal ring, the 6th, platen, the 7th, valve rod, the 8th, adjust pad, the 9th, valve plate, the 10th, connect bearing pin, the 11st, seal valve seat, the 12nd, anchor ring in the middle of the seal valve seat inner cone anchor ring.
(5) embodiment
The utility model is done with detailed description below with reference to embodiment's (accompanying drawing), but does not limit the utility model.
As shown in Figure 1, 2, the eccentric full-metallic seal butterfly valve of three-dimensional of the present utility model comprises valve body (4), be installed in the interior valve plate (9) of valve flowing channel by coupled valve rod (7), and the seal valve seat (11) that is arranged on the interior formation sealing pair that matches with seal ring (5) of valve flowing channel; Wherein said valve rod (7) adopts eccentric mode to be installed in the valve body (4), and its axial throw of eccentric is E, and the radial disbalance distance is e; The sealing anchor ring of the sealing anchor ring of described seal valve seat (11) and the seal ring (5) that matches with it is the oblique cone ring structure, its conical point is offset to valve flowing channel center line one side, cone-apex angle α is 20 °-25 °, and its conical point apart from the distance L of valve flowing channel center line smaller or equal to the valve flowing channel center line to the equal distance between seal valve seat (11) the inner cone anchor ring; Described equal distance is the distance of the middle anchor ring (12) of seal valve seat (11) inner cone anchor ring to the valve flowing channel centreline space.
Claims (2)
1, the eccentric full-metallic seal butterfly valve of a kind of three-dimensional, it comprises valve body (4), be installed in the interior valve plate (9) of valve flowing channel by coupled valve rod (7), and the seal valve seat (11) that is arranged on the interior formation sealing pair that matches with seal ring (5) of valve flowing channel, it is characterized in that: described valve rod (7) adopts eccentric mode to be installed in the valve body (4), its axial throw of eccentric is E, and the radial disbalance distance is e; The sealing anchor ring of the sealing anchor ring of described seal valve seat (11) and the seal ring (5) that matches with it is the oblique cone ring structure, its conical point is offset to valve flowing channel center line one side, and its conical point apart from the distance L of valve flowing channel center line smaller or equal to the valve flowing channel center line to the equal distance between seal valve seat (11) the inner cone anchor ring.
2, the eccentric full-metallic seal butterfly valve of three-dimensional according to claim 1 is characterized in that: the sealing anchor ring of the sealing anchor ring of described seal valve seat (11) and the seal ring (5) that matches with it is the oblique cone ring structure, and its cone-apex angle α is 20 °-25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278888 CN2563376Y (en) | 2002-08-21 | 2002-08-21 | Three dimension eccentric full metal sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278888 CN2563376Y (en) | 2002-08-21 | 2002-08-21 | Three dimension eccentric full metal sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2563376Y true CN2563376Y (en) | 2003-07-30 |
Family
ID=33742091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02278888 Expired - Fee Related CN2563376Y (en) | 2002-08-21 | 2002-08-21 | Three dimension eccentric full metal sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2563376Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287545A (en) * | 2011-07-20 | 2011-12-21 | 浙江宝龙阀门制造有限公司 | Butterfly ball valve |
| CN102537381A (en) * | 2012-02-13 | 2012-07-04 | 石特阀门股份有限公司 | Two-way hard sealing butterfly valve |
| CN117967805A (en) * | 2024-04-01 | 2024-05-03 | 南通市力沛流体阀业有限公司 | Wear-resistant sealing butterfly valve |
-
2002
- 2002-08-21 CN CN 02278888 patent/CN2563376Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287545A (en) * | 2011-07-20 | 2011-12-21 | 浙江宝龙阀门制造有限公司 | Butterfly ball valve |
| CN102287545B (en) * | 2011-07-20 | 2013-05-01 | 浙江宝龙阀门制造有限公司 | Butterfly ball valve |
| CN102537381A (en) * | 2012-02-13 | 2012-07-04 | 石特阀门股份有限公司 | Two-way hard sealing butterfly valve |
| CN117967805A (en) * | 2024-04-01 | 2024-05-03 | 南通市力沛流体阀业有限公司 | Wear-resistant sealing butterfly valve |
| CN117967805B (en) * | 2024-04-01 | 2024-05-28 | 南通市力沛流体阀业有限公司 | Wear-resistant sealing butterfly 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 |