CN204025710U - A kind of oval sealing surface Bidirectional pressure butterfly valve - Google Patents
A kind of oval sealing surface Bidirectional pressure butterfly valve Download PDFInfo
- Publication number
- CN204025710U CN204025710U CN201420302806.1U CN201420302806U CN204025710U CN 204025710 U CN204025710 U CN 204025710U CN 201420302806 U CN201420302806 U CN 201420302806U CN 204025710 U CN204025710 U CN 204025710U
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- CN
- China
- Prior art keywords
- valve
- oval
- sealing surface
- seat
- flowing channel
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of 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 with horizontally extending valve flowing channel center line, movable valve seat is installed in valve body, butterfly plate is fixedly connected with valve rod lower end, moving valve seat is positioned at butterfly plate one side, butterfly plate is provided with loose gland, loose gland is fixed on butterfly plate by butterfly plate pressure ring, in movable valve seat, be provided with sealing surface of seat, on loose gland circumference, have with sealing surface of seat and match and form the seal ring seal face of the sealing pair that seals this valve, sealing pair is oval sealing pair, sealing surface of seat forms a part for the tilting oval cone of relative this valve flowing channel lack of alignment, valve flowing channel center line overlaps with oval sealing pair longitudinal center line, described summit is positioned at valve flowing channel center line below.The utility model is simple in structure, nothing friction between sealing surface, and 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.
Description
Technical field
The utility model relates to a kind of Bidirectional pressure butterfly valve, relates in particular to a kind of oval sealing surface Bidirectional pressure butterfly valve, belongs to butterfly valve field.
Background technique
In known butterfly valve technology, it is rubber, teflon, multi-level composite material etc. that its seal form adopts sealing configuration sealing material more at present.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 resistance to wear.The hard sealed valve of industrial High Temperature High Pressure is mainly taking gate valve, stop valve as main, 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 on-the-spot installing space is large.
Current oval cone three eccentric butterfly valve has started to popularize, and can substitute above costs high, lifting type cut-off valve, oval cone three eccentric butterfly valve, sealed section area is larger, and required essential specific pressure increases, close moment and also just increase, the also increase accordingly of drive unit.It is poor that oval sealing width is installed centering, installs more loaded down with trivial details.
Summary of the invention
For above-mentioned defect, it is a kind of simple in structure that the purpose of this utility model is to provide, nothing friction between sealing surface, good sealing effect, corrosion-resistant, the oval sealing surface Bidirectional pressure of the one butterfly valve of long service life, can reduce Flow area, reduce closing torque, reduce actuator's type selecting cost, and easy for installation, centering is good.
The technological scheme that the utility model adopts is for this reason:
Comprise valve body, movable valve seat, butterfly plate and valve rod, valve body comprises the valve flowing channel with horizontally extending valve flowing channel center line, movable valve seat is installed in valve body, butterfly plate is fixedly connected with valve rod lower end, moving valve seat is positioned at butterfly plate one side, butterfly plate is provided with loose gland, loose gland is fixed on butterfly plate by butterfly plate pressure ring, in movable valve seat, be provided with sealing surface of seat, on loose gland circumference, have with sealing surface of seat and match and form the seal ring seal face of the sealing pair that seals this valve, described sealing pair is oval sealing pair, described sealing surface of seat forms a part for the tilting oval cone of relative this valve flowing channel lack of alignment, the triangular-section that summit in described tilting oval 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, valve flowing channel center line overlaps with oval sealing pair longitudinal center line, described summit is positioned at valve flowing channel center line below.
Described summit is between the horizontal line of the crossing intersection point of valve flowing channel center line and described triangular-section and loose gland lower end.
Described summit is positioned at the horizontal line below of described triangular-section and the crossing intersection point in loose gland lower end.
Described summit is positioned on the horizontal line of described triangular-section and the crossing intersection point in loose gland lower end.
The utility model has the advantages that:
The utility model is simple in structure, nothing friction between sealing surface, and 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.
Brief description of the drawings
Fig. 1 is the structural representation of tilting oval cone apex between the crossing intersection point horizontal line of valve flowing channel center line and triangular-section and loose gland lower end in the utility model.
Fig. 2 is the structural representation that in the utility model, tilting oval cone apex is positioned at the horizontal line below of triangular-section and the loose gland 6 crossing intersection points in lower end.
Fig. 3 is that in the utility model, tilting oval cone apex is positioned at the structural representation on the horizontal line of triangular-section and the loose gland 6 crossing intersection points in lower end.
In figure, 1 is valve body, the 2nd, movable valve seat, the 3rd, dish plate, the 4th, valve rod, the 5th, valve flowing channel center line, the 6th, loose gland, the 7th, butterfly plate pressure ring, the 8th, oval sealing pair longitudinal center line.
Embodiment
A kind of 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 with horizontally extending valve flowing channel center line 5, movable valve seat 2 is installed in valve body 1, butterfly plate 3 is fixedly connected with valve rod 4 lower ends, movable valve seat 2 is positioned at butterfly plate 3 one sides, butterfly plate 3 is provided with loose gland 6, loose gland 6 is fixed on butterfly plate 3 by butterfly plate pressure ring 7, in movable valve seat 2, be provided with sealing surface of seat, on loose gland 6 circumference, have with sealing surface of seat and match and form the seal ring seal face of the sealing pair that seals this valve, described sealing pair is oval sealing pair, described sealing surface of seat forms a part for the tilting oval cone of relative these valve flowing channel center line 5 deflections, the triangular-section that summit in described tilting oval cone and oval bottom surface major axis thereof coexist is coplanar with described valve flowing channel center line 5 and vertical with these valve rod 4 axis, valve flowing channel center line 5 overlaps with oval sealing pair longitudinal center line 8, described summit is positioned at valve flowing channel center line 5 belows.
Described summit is between valve flowing channel center line 5 and described triangular-section and the horizontal line of the loose gland 6 crossing intersection points in lower end.
Described summit is positioned at the horizontal line below of described triangular-section and the loose gland 6 crossing intersection points in lower end.
Described summit is positioned on the horizontal line of described triangular-section and the loose gland 6 crossing intersection points in lower end.
Claims (4)
1. an 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 with horizontally extending valve flowing channel center line, movable valve seat is installed in valve body, butterfly plate is fixedly connected with valve rod lower end, moving valve seat is positioned at butterfly plate one side, butterfly plate is provided with loose gland, loose gland is fixed on butterfly plate by butterfly plate pressure ring, in movable valve seat, be provided with sealing surface of seat, on loose gland circumference, have with sealing surface of seat and match and form the seal ring seal face of the sealing pair that seals 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 oval cone of relative this valve flowing channel lack of alignment, the triangular-section that summit in described tilting oval 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, valve flowing channel center line overlaps with oval sealing pair longitudinal center line, described summit is positioned at valve flowing channel center line below.
2. the oval sealing surface Bidirectional pressure of one according to claim 1 butterfly valve, is characterized in that, described summit is between the horizontal line of the crossing intersection point of valve flowing channel center line and described triangular-section and loose gland lower end.
3. the oval sealing surface Bidirectional pressure of one according to claim 1 butterfly valve, is characterized in that, described summit is positioned at the horizontal line below of described triangular-section and the crossing intersection point in loose gland lower end.
4. the oval sealing surface Bidirectional pressure of one according to claim 1 butterfly valve, is characterized in that, described summit is positioned on the horizontal line of described triangular-section and the crossing intersection point in loose gland lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302806.1U CN204025710U (en) | 2014-06-09 | 2014-06-09 | A kind of oval sealing surface Bidirectional pressure butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302806.1U CN204025710U (en) | 2014-06-09 | 2014-06-09 | A kind of oval sealing surface Bidirectional pressure butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025710U true CN204025710U (en) | 2014-12-17 |
Family
ID=52065578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420302806.1U Expired - Fee Related CN204025710U (en) | 2014-06-09 | 2014-06-09 | A kind of oval sealing surface Bidirectional pressure butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025710U (en) |
-
2014
- 2014-06-09 CN CN201420302806.1U patent/CN204025710U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 211407, Jiangsu, Yangzhou Province, Yizheng City, Liu town Pangu Industrial Concentration Zone No. 126 Patentee after: LOTOKE INDUSTRY GROUP CO., LTD. Address before: 211407 Liu Zhen Industrial Zone, Yangzhou, Jiangsu, Yizheng Patentee before: Jiangsu Lotoke Valve Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20200609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |