CN200946674Y - Butterfly type slant sealing device for valve - Google Patents
Butterfly type slant sealing device for valve Download PDFInfo
- Publication number
- CN200946674Y CN200946674Y CN 200620098072 CN200620098072U CN200946674Y CN 200946674 Y CN200946674 Y CN 200946674Y CN 200620098072 CN200620098072 CN 200620098072 CN 200620098072 U CN200620098072 U CN 200620098072U CN 200946674 Y CN200946674 Y CN 200946674Y
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly
- butterfly plate
- tilting
- valve seat
- 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 - Lifetime
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- Lift Valve (AREA)
Abstract
The utility model discloses a butterfly type slant sealing device for valve which comprises a valve body, a ring valve seat on the inner wall of the flow channel of the valve body while the annular plane of the valve seat is not parallel with the vertical plane of the flow channel and a butterfly plate in the valve body while the connection between butterfly plate and the slant valve seat is axially sealed when the valve is shut and the rotary centre of rotation of the butterfly plate is eccentric from the centre line of the valve body and the centre plate of the flow channel of the valve body. The utility model adopts the axial sealing to realize the axial contact sealing with taper surface, arranges the centre of rotation of the butterfly plate in the flow channel to make the butterfly in the flow channel when the valve is open to prevent vibration of the butterfly plate, adopts the streamline butterfly plate to maximally reduce the hydraulic resistance in the flow channel and the eccentrically arranged butterfly plate can be automatically rotated and effectively sealed by the deadweight of the butterfly plate when the valve is shut.
Description
Technical field
The utility model belongs to supply lines valve, is specifically related to a kind of tilting seal arrangement of butterfly of valve.
Background technique
Have in the butterfly valve at present a kind of ring-like valve seat to be obliquely installed, it is end face seal with butterfly plate sealing employing, promptly seal between the end face of the end face of butterfly plate and valve seat, and this structure makes butterfly plate can only adopt the cantilever type rotational structure.Opening the commentaries on classics state, because the effect butterfly plate of current easily causes shake, increasing resistance to water-flow, shake easily causes mechanical wear, influences the assembly precision of valve.
Summary of the invention
The purpose of this utility model is to provide a kind of tilting seal arrangement of butterfly of valve of axial seal, to address the above problem.
The technical solution of the utility model is: the tilting seal arrangement of the butterfly of valve, and it comprises valve body, and the valve flowing channel inwall is provided with ring-like valve seat, and described valve seat ring surface does not overlap parallel with the vertical surface of runner; Establish butterfly plate in the valve body, axial seal between butterfly plate and the tilting valve seat when closing; The rotating center of butterfly plate is relative with the valve body center line eccentric and eccentric relatively with the valve flowing channel central plane.
Described valve seat and butterfly plate axially between be conical surface contact seal.
Described butterfly plate is streamlined.
The rotating center of described butterfly plate is relative with the valve body center line eccentric and eccentric relatively with the valve flowing channel central plane.
This device adopts axial seal, can realize axial conical surface contact seal; The rotating center of butterfly plate is located in the runner, like this when opening butterfly plate in runner, avoided the shake of butterfly plate, and fairshaped butterfly plate has reduced the water resistance to runner to greatest extent, when the flow of forward fluid reaches certain limit, butterfly plate will float over above the fluid, thereby has reduced flow resistance and crushing.Maximum damage by water is no more than 0.003MPa, and area of passage is big; The eccentric butterfly plate that is provided with can utilize its deadweight to realize rotating when closing and realize sealing efficiently.Adopted oblique straight-tapered valve base sealing device, can guarantee the sealed operating pressure of each point on 360 ° of circumferential surfacies of butterfly plate, seal ring need not can obtain the sealing effect of zero leakage than big self-deformation; The two mutual clamping even stuck phenomenon have been stopped greater than by the friction angle that butterfly plate and seat material determined in assurance minimum pressure angle therefore on 360 ° of circumferential surfacies of butterfly plate; When occurring expanding with heat and contract with cold, keep thick-and-thin sealing effect by " gradual " self compensation mode between butterfly plate and the valve seat because of temperature variation.Valve does not have friction between butterfly plate and valve base sealing pair when opening and closing.Do not produce interplanar relative fricting movement between butterfly plate and the valve seat, thereby guaranteed the long-life of valve, high operating flexibility and when frequent the switching, still had uniform sealing effect.
Description of drawings
The tilting seal arrangement schematic representation of the butterfly of Fig. 1 valve
The local enlarged diagram of the tilting sealing of Fig. 2
Embodiment
As shown in Figure 1, valve body 1 runner inner wall 2 is provided with ring-like valve seat 3, and it is parallel that valve seat ring surface and the vertical surface of runner do not overlap, and promptly valve seat 3 is tilting in runner; Establish butterfly plate 4 in the valve body 1, axial seal between butterfly plate 4 and the tilting valve seat 3 when closing.Valve seat 3 and butterfly plate 4 axially between form conical surface contact seal; Valve seat 3 and butterfly plate 4 axially between conical surface contact seal in a place is arranged is the contact seal of taper horizontal plane, this place can be at the peak place of runner, promptly shown in the figure.The rotating center 5 of butterfly plate 4 is relative with the valve body center line eccentric and eccentric relatively with the valve flowing channel central plane.Butterfly plate 4 is streamlined.
As shown in Figure 2, establishing seal ring 6 on the wheel rim of butterfly plate 4 can seal with valve seat 3, and concrete structure can be: connect pressing plate 7 on the butterfly plate 4, seal ring 6 is located between butterfly plate 4 and the pressing plate 7; Certainly seal ring 6 fixedly is not limited to said structure.
Claims (7)
1, the tilting seal arrangement of a kind of butterfly of valve, it comprises valve body, it is characterized in that the valve flowing channel inwall is provided with ring-like valve seat, described valve seat ring surface does not overlap parallel with the vertical surface of runner; Establish butterfly plate in the valve body, axial seal between butterfly plate and the tilting valve seat when closing.
2, the tilting seal arrangement of the butterfly of valve according to claim 1 is characterized in that the rotating center of butterfly plate is relative with the valve body center line eccentric and eccentric relatively with the valve flowing channel central plane.
3, the tilting seal arrangement of the butterfly of valve according to claim 1 is characterized in that described butterfly plate is streamlined.
4, the tilting seal arrangement of the butterfly of valve according to claim 1, it is characterized in that described valve seat and butterfly plate axially between be conical surface contact seal.
5, the tilting seal arrangement of the butterfly of valve according to claim 1, it is characterized in that establishing on the wheel rim of butterfly plate seal ring can with valve base sealing.
6, as the tilting seal arrangement of butterfly of valve as described in the claim 4, it is characterized in that described valve seat and butterfly plate axially between conical surface contact seal in a place is arranged is the contact seal of taper horizontal plane.
7, as the tilting seal arrangement of butterfly of valve as described in the claim 4, it is characterized in that described valve seat and butterfly plate axially between the contact seal of taper horizontal plane at the peak place of runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098072 CN200946674Y (en) | 2006-07-27 | 2006-07-27 | Butterfly type slant sealing device for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098072 CN200946674Y (en) | 2006-07-27 | 2006-07-27 | Butterfly type slant sealing device for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200946674Y true CN200946674Y (en) | 2007-09-12 |
Family
ID=38733737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620098072 Expired - Lifetime CN200946674Y (en) | 2006-07-27 | 2006-07-27 | Butterfly type slant sealing device for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200946674Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256123A (en) * | 2012-06-26 | 2013-08-21 | 上海工程技术大学 | Throttle body |
| CN105864438A (en) * | 2016-06-03 | 2016-08-17 | 凯瑞特阀业有限公司 | Eccentric butterfly valve |
| CN107084249A (en) * | 2017-06-28 | 2017-08-22 | 张振民 | Also valve |
-
2006
- 2006-07-27 CN CN 200620098072 patent/CN200946674Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256123A (en) * | 2012-06-26 | 2013-08-21 | 上海工程技术大学 | Throttle body |
| CN103256123B (en) * | 2012-06-26 | 2015-08-05 | 上海工程技术大学 | Throttle body |
| CN105864438A (en) * | 2016-06-03 | 2016-08-17 | 凯瑞特阀业有限公司 | Eccentric butterfly valve |
| CN107084249A (en) * | 2017-06-28 | 2017-08-22 | 张振民 | Also valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUHAN DAYU VALVE CO., LTD. Free format text: FORMER NAME: WUHAN DAYU VALVE MANUFACTURING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 430056 Hubei city of Wuhan province Wuhan economic and Technological Development Zone Science and Technology Industrial Park Yang Dun Patentee after: Wuhan Dayu Valve Co., Ltd. Address before: 430056 Hubei city of Wuhan province Zhuankou Wuhan economic and Technological Development Zone Science and Technology Industrial Park Wuhan Dun Yang Yu Valve Manufacturing Co. Ltd Patentee before: Wuhan Dayu Valve Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070912 |
|
| EXPY | Termination of patent right or utility model |