CN204692607U - Oval sealing surface Bidirectional pressure butterfly valve - Google Patents
Oval sealing surface Bidirectional pressure butterfly valve Download PDFInfo
- Publication number
- CN204692607U CN204692607U CN201420782690.6U CN201420782690U CN204692607U CN 204692607 U CN204692607 U CN 204692607U CN 201420782690 U CN201420782690 U CN 201420782690U CN 204692607 U CN204692607 U CN 204692607U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- sealing surface
- butterfly plate
- center line
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 56
- 230000002457 bidirectional effect Effects 0.000 title claims description 10
- 210000004907 gland Anatomy 0.000 claims description 19
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
本实用新型涉及椭圆密封面双向压蝶阀，包括阀体、活动阀座、蝶板和阀杆，阀体包括具有水平延伸的阀门流道中心线的阀门流道，活动阀座安装于阀体内，蝶板与阀杆下端固定连接，活动阀座位于蝶板一侧，蝶板上设有活动密封环，活动密封环通过蝶板压环固定在蝶板上，活动阀座内设有阀座密封面，活动密封环圆周上具有与阀座密封面相匹配形成密封该阀门的密封副的密封环密封面，阀座密封面形成一个相对该阀门流道中心线偏斜的斜置椭圆锥体的一部分，阀门流道中心线位于椭圆密封副轴向中心线下方，所述顶点位于阀门流道中心线下方。本实用新型密封面之间无摩擦，密封效果好，使用寿命长，能减少流道面积，减小关闭扭矩，且安装方便，对中性好。
The utility model relates to a two-way pressure butterfly valve with an elliptical sealing surface, which comprises a valve body, a movable valve seat, a butterfly plate and a valve stem. The butterfly plate is fixedly connected with the lower end of the valve stem. The movable valve seat is located on one side of the butterfly plate. There is a movable sealing ring on the butterfly plate. The movable sealing ring is fixed on the butterfly plate through the pressure ring of the butterfly plate. On the circumference of the movable sealing ring, there is a sealing ring sealing surface that matches the sealing surface of the valve seat to form a sealing pair for sealing the valve. The sealing surface of the valve seat forms a part of an oblique elliptical cone that is inclined relative to the centerline of the flow channel of the valve. , the centerline of the valve flow path is located below the centerline of the elliptical sealing auxiliary shaft, and the apex is located below the centerline of the valve flow path. The utility model has no friction between the sealing surfaces, good sealing effect, long service life, can reduce the area of the flow channel, reduce the closing torque, and is easy to install and good in neutrality.
Description
Technical field
The utility model relates to a kind of Bidirectional pressure butterfly valve, particularly relates to oval sealing surface Bidirectional pressure butterfly valve, belongs to butterfly valve field.
Background technique
At present in known butterfly valve technology, its seal form many employings sealing configuration sealing material is rubber, teflon, multi-level composite material etc.Due to the restriction of structure characteristic, be not suitable with high temperature resistant, high pressure and corrosion-resistant, the bad working environments such as to resistance to wear.The hard sealed valve of industrial High Temperature High Pressure is mainly based on gate valve, stop valve, and this type of valve major defect is: valve is all upper and lower opening structure, and the weight of valve own is large, and cost is high, and in-site installation space is large.
Current elliptical cone three eccentric butterfly valve has started to popularize, and can substitute above costs high, lifting type cut-off valve, elliptical cone three eccentric butterfly valve, sealed section area is comparatively large, and required required specific pressure increases, close moment also just to increase, also increasing accordingly of drive unit.It is poor that oval sealing width installs centering, installs more loaded down with trivial details.
Model utility content
For above-mentioned defect, it is simple that the purpose of this utility model is to provide a kind of structure, without friction between sealing surface, good sealing effect, corrosion-resistant, the oval sealing surface Bidirectional pressure butterfly valve of long service life, can Flow area be reduced, reduce closing torque, reduce actuator's type selecting cost, and easy for installation, centering is good.
The technological scheme that the utility model adopts for this reason is:
Comprise valve body, movable valve seat, butterfly plate and valve rod, valve body comprises the valve flowing channel of the valve flowing channel center line with horizontal-extending, movable valve seat is installed in valve body, butterfly plate is fixedly connected with valve rod lower end, movable valve seat is positioned at butterfly plate side, butterfly plate is provided with loose gland, loose gland is fixed on butterfly plate by butterfly plate pressure ring, sealing surface of seat is provided with in movable valve seat, loose gland circumferentially has to match with sealing surface of seat and forms the seal ring seal face of the sealing pair sealing this valve, described sealing pair is oval sealing pair, described sealing surface of seat forms a part for the tilting elliptical cone of this valve flowing channel lack of alignment relative, the triangular-section that summit in described tilting elliptical cone and oval bottom surface major axis thereof coexist is coplanar and vertical with this valve rod axis with described valve flowing channel center line, described valve rod axis is positioned at below oval sealing pair longitudinal center line, valve flowing channel center line is positioned at below oval sealing pair longitudinal center line, described summit is positioned at below valve flowing channel center line.
Described summit is between the horizontal line of valve flowing channel center line and described triangular-section intersection point crossing with loose gland lower end.
Described summit is positioned at below the horizontal line of described triangular-section intersection point crossing with loose gland lower end.
Described summit is positioned on the horizontal line of described triangular-section intersection point crossing with loose gland lower end.
The utility model has the advantages that:
The utility model structure is simple, and without friction between sealing surface, good sealing effect, corrosion-resistant, long service life, can reduce Flow area, reduces closing torque, reduces actuator's type selecting cost, and easy for installation, and centering is good.
Accompanying drawing explanation
Fig. 1, Fig. 2, Fig. 3 are structural representations of the present utility model.
In figure, 1 be valve body, 2 are movable valve seat, 3 are dish plates, 4 are valve rods, 5 are valve flowing channel center lines, 6 are loose glands, 7 are butterfly plate pressure rings, 8 is oval sealing pair longitudinal center lines.
Embodiment
Oval sealing surface Bidirectional pressure butterfly valve, comprise valve body 1, movable valve seat 2, butterfly plate 3 and valve rod 4, valve body 1 comprises the valve flowing channel of the valve flowing channel center line 5 with horizontal-extending, movable valve seat 2 is installed in valve body 1, butterfly plate 3 is fixedly connected with valve rod 4 lower end, movable valve seat 2 is positioned at butterfly plate 3 side, butterfly plate 3 is provided with loose gland 6, loose gland 6 is fixed on butterfly plate 3 by butterfly plate pressure ring 7, sealing surface of seat is provided with in movable valve seat 2, loose gland 6 circumferentially has to match with sealing surface of seat and forms the seal ring seal face of the sealing pair sealing this valve, described sealing pair is oval sealing pair, described sealing surface of seat forms a part for the tilting elliptical cone of this valve flowing channel center line 5 deflection relative, the triangular-section that summit in described tilting elliptical cone and oval bottom surface major axis thereof coexist and described valve flowing channel center line 5 coplanar and with this valve rod 4 axes normal, described valve rod 4 axis is positioned at below oval sealing pair longitudinal center line 8, valve flowing channel center line 5 is positioned at below oval sealing pair longitudinal center line 8, described summit is positioned at below valve flowing channel center line 5.
Described summit is at valve flowing channel center line 5 with between described triangular-section and the horizontal line of the crossing intersection point in loose gland 6 lower end.
Described summit is positioned at described triangular-section with below the horizontal line of the crossing intersection point in loose gland 6 lower end.
Described summit is positioned at described triangular-section with on the horizontal line of the crossing intersection point in loose gland 6 lower end.
Claims (4)
1. oval sealing surface Bidirectional pressure butterfly valve, comprise valve body, movable valve seat, butterfly plate and valve rod, valve body comprises the valve flowing channel of the valve flowing channel center line with horizontal-extending, movable valve seat is installed in valve body, butterfly plate is fixedly connected with valve rod lower end, movable valve seat is positioned at butterfly plate side, butterfly plate is provided with loose gland, loose gland is fixed on butterfly plate by butterfly plate pressure ring, sealing surface of seat is provided with in movable valve seat, loose gland circumferentially has to match with sealing surface of seat and forms the seal ring seal face of the sealing pair sealing this valve, it is characterized in that, described sealing pair is oval sealing pair, described sealing surface of seat forms a part for the tilting elliptical cone of this valve flowing channel lack of alignment relative, the triangular-section that summit in described tilting elliptical cone and oval bottom surface major axis thereof coexist is coplanar and vertical with this valve rod axis with described valve flowing channel center line, described valve rod axis is positioned at below oval sealing pair longitudinal center line, valve flowing channel center line is positioned at below oval sealing pair longitudinal center line, described summit is positioned at below valve flowing channel center line.
2. oval sealing surface Bidirectional pressure butterfly valve according to claim 1, is characterized in that, described summit is between the horizontal line of valve flowing channel center line and described triangular-section intersection point crossing with loose gland lower end.
3. oval sealing surface Bidirectional pressure butterfly valve according to claim 1, it is characterized in that, described summit is positioned at below the horizontal line of described triangular-section intersection point crossing with loose gland lower end.
4. oval sealing surface Bidirectional pressure butterfly valve according to claim 1, it is characterized in that, described summit is positioned on the horizontal line of described triangular-section intersection point crossing with loose gland lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782690.6U CN204692607U (en) | 2014-12-12 | 2014-12-12 | Oval sealing surface Bidirectional pressure butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782690.6U CN204692607U (en) | 2014-12-12 | 2014-12-12 | Oval sealing surface Bidirectional pressure butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692607U true CN204692607U (en) | 2015-10-07 |
Family
ID=54232905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420782690.6U Expired - Lifetime CN204692607U (en) | 2014-12-12 | 2014-12-12 | Oval sealing surface Bidirectional pressure butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873192A (en) * | 2018-09-04 | 2020-03-10 | 和正丰科技股份有限公司 | Fluoroplastic butterfly valve structure |
-
2014
- 2014-12-12 CN CN201420782690.6U patent/CN204692607U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873192A (en) * | 2018-09-04 | 2020-03-10 | 和正丰科技股份有限公司 | Fluoroplastic butterfly valve structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210329 Address after: 211400 Pangu industrial concentration area, Liu Ji Town, Yizheng City, Yangzhou, Jiangsu Patentee after: Liu Tong Address before: No. 126, Pangu industrial concentration area, Liuji Town, Yizheng City, Yangzhou City, Jiangsu Province, 211407 Patentee before: LOTOKE INDUSTRY GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210722 Address after: 510000 217, second floor, unit 2, building 2, No. 24, Jishan new road street, Tianhe District, Guangzhou, Guangdong Province (only for office) (not for plant) Patentee after: Xibosi (China) electric drive Co.,Ltd. Address before: 211400 Pangu industrial concentration area, Liu Ji Town, Yizheng City, Yangzhou, Jiangsu Patentee before: Liu Tong |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20151007 |