CN202381713U - Dual-eccentric thin butterfly valve - Google Patents
Dual-eccentric thin butterfly valve Download PDFInfo
- Publication number
- CN202381713U CN202381713U CN2011205651674U CN201120565167U CN202381713U CN 202381713 U CN202381713 U CN 202381713U CN 2011205651674 U CN2011205651674 U CN 2011205651674U CN 201120565167 U CN201120565167 U CN 201120565167U CN 202381713 U CN202381713 U CN 202381713U
- Authority
- CN
- China
- Prior art keywords
- valve
- seat ring
- eccentric
- butterfly valve
- 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 - Fee Related
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Abstract
The utility model relates to a dual-eccentric thin butterfly valve. The dual-eccentric thin butterfly valve comprises a valve body, a valve disk, a valve seat ring, a pressing plate and a valve rod, and is characterized in that a gap is arranged at each position on the valve body and the pressing plate for installing the valve seat ring, a T-shaped sealing chamber is formed by the two gaps, and the valve seat ring with a T-shaped section is arranged in the T-shaped sealing chamber. The dual-eccentric thin butterfly valve has the characteristics of being compact in integral structure, small in occupied space, simple in structure of the valve seat ring, easy to process, long in service life, high in sealing effect, high in reliability, and convenience in replacing.
Description
Technical field
The utility model relates to peculiar to vessel two eccentric slim butterfly valves of a kind of valve, particularly a kind of compact structure.
Background technique
Existing butterfly valve, its seat ring mostly are installed on valve body or the valve disc, and the decrement when seat ring has only decrement and the valve disc of a face to close if seat ring deforms, breaks away from valve body or valve disc easily, causes leakage, influences the sealing effect of valve.The thickness of seat ring is thicker, opens or close valve disc, and seat ring is difficult for separating with valve disc or combining, and causes the switch valve moment of torsion bigger.Be installed in the butterfly valve on the boats and ships,, hope that all butterfly valve thickness is little because of receiving the narrow limitation of installing space; So that piping is compact more, it is little to take up room, but because of the distance at valve rod center and seat ring center bigger; The thicker of seat ring causes the physical dimension of butterfly valve to satisfy usage requirement fully, receives the structural limitations of seat ring; Change and safeguard inconvenience, make valve maintainable poor.
Summary of the invention
The purpose of the utility model is to provide a kind of good sealing effect, and long service life, physical dimension can satisfy the two eccentric slim butterfly valve of usage requirement.
The technical solution of the utility model is: a kind of two eccentric slim butterfly valves; Comprise valve body, valve disc, seat ring, pressing plate and valve rod; The position that it is characterized in that being used on valve body and the pressing plate installing seat ring is respectively equipped with breach; Two breach form T type Seal cage, and the cross section is that the seat ring of T type is installed in the T type Seal cage.
Described cross section is the seat ring of T type, and its inner ring face is a cambered surface.
Described butterfly valve, its valve disc turning axle center line are that valve rod center line and valve channel center line are eccentric, and valve disc turning axle center line and seat ring center line are eccentric.
The design that the utility model has adopted T type seat ring and two eccentric structures to combine; Seat ring thickness and sealant band width are diminished; Seat ring separates with valve disc more easily during Open valve, dwindles the distance at valve rod center and seat ring center on this basis again, can effectively shorten valve body thickness.T type seat ring is embedded in the Seal cage; Realized the sealing of seat ring and valve body, seat ring and pressing plate, seat ring and three surface of contact of valve disc; And valve body, pressing plate and valve disc all can form decrement with T type seat ring, and good sealing effect is even the valve ring support deforms; Can not break away from valve body yet, improve the butterfly valve reliability.The inner ring face of T type seat ring is a cambered surface, when keeping compression ratio, has reduced decrement, and the frictional force between seat ring and valve disc is reduced greatly, has reduced valve torque, helps prolonging the working life of seat ring.Two eccentric structure designs; Improve valve rod rigidity through heat treatment, can when not reducing valve rod torsional strength and resistance to flexure, dwindle stem diameter effectively, make the thickness of valve body reduce and reduce with stem diameter; Again through dwindling the distance at valve rod center and seat ring center; Reduce the throw of eccentric and the valve body thickness of valve disc, make the compact overall structure of butterfly valve, it is little to take up space.
The characteristics of the utility model are: the compact overall structure of butterfly valve, and it is little to take up space, and seat ring is simple in structure, easy processing, long service life, good sealing effect, reliability is high, and it is convenient to change.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the local enlarged diagram of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Like Fig. 1, shown in 2; Be provided with an end in the valve body 1 and stretch out the outer valve rod 5 of valve body; Valve rod improves rigidity through Overheating Treatment, and the position relative with valve outlet is connected with valve disc 2, and it is that valve rod center line and valve channel center line are eccentric that its annexation should satisfy valve disc turning axle center line; Valve disc turning axle center line and seat ring 3 center lines are eccentric, form two eccentric structures.The seat ring cross section is the T type; Adopt rubber material, the position that is used to install seat ring on valve body and the pressing plate 4 is respectively equipped with breach 7,8, two breach formation T type Seal cage; Seat ring is installed in the T type Seal cage, and valve body and pressing plate are fixed together through screw 6.The inner ring face of seat ring is a cambered surface 9.
The material of the utility model seat ring can also adopt other sealabilities such as teflon material preferably.
Claims (3)
1. two eccentric slim butterfly valve; Comprise valve body, valve disc, seat ring, pressing plate and valve rod; The position that it is characterized in that being used on valve body and the pressing plate installing seat ring is respectively equipped with breach, and two breach form T type Seal cage, and the cross section is that the seat ring of T type is installed in the T type Seal cage.
2. two eccentric slim butterfly valve according to claim 1 is characterized in that described cross section is the seat ring of T type, and its inner ring face is a cambered surface.
3. two eccentric slim butterfly valve according to claim 1 is characterized in that described butterfly valve, and its valve disc turning axle center line is that valve rod center line and valve channel center line are eccentric, and valve disc turning axle center line and seat ring center line are eccentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205651674U CN202381713U (en) | 2011-12-27 | 2011-12-27 | Dual-eccentric thin butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205651674U CN202381713U (en) | 2011-12-27 | 2011-12-27 | Dual-eccentric thin butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381713U true CN202381713U (en) | 2012-08-15 |
Family
ID=46630217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205651674U Expired - Fee Related CN202381713U (en) | 2011-12-27 | 2011-12-27 | Dual-eccentric thin butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964044A (en) * | 2015-06-30 | 2015-10-07 | 苏州纽威阀门股份有限公司 | Double eccentric butterfly valve |
-
2011
- 2011-12-27 CN CN2011205651674U patent/CN202381713U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964044A (en) * | 2015-06-30 | 2015-10-07 | 苏州纽威阀门股份有限公司 | Double eccentric butterfly valve |
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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: 20120815 Termination date: 20161227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |