CN204140899U - With the seal butterfly valve of floating valve seat - Google Patents
With the seal butterfly valve of floating valve seat Download PDFInfo
- Publication number
- CN204140899U CN204140899U CN201420576149.XU CN201420576149U CN204140899U CN 204140899 U CN204140899 U CN 204140899U CN 201420576149 U CN201420576149 U CN 201420576149U CN 204140899 U CN204140899 U CN 204140899U
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- China
- Prior art keywords
- valve seat
- medium
- runner
- butterfly plate
- floating valve
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Abstract
The utility model relates to a kind of seal butterfly valve with floating valve seat, comprise valve body, butterfly plate, butterfly plate seal ring, valve seat, valve shaft and the driven unit composition driving valve shaft to rotate, valve body is provided with medium runner and connection chamber, butterfly plate is located in connection chamber, butterfly plate seal ring is fixed on described butterfly plate, valve seat is arranged on medium and enters in runner and match with described butterfly plate seal ring and arrange, butterfly plate is connected with valve shaft, also comprise disc holder, valve seat is set to floating valve seat, disc holder is arranged on the corresponding medium of floating valve seat and enters side, runner direction, be provided with between disc holder and valve body for floating valve seat in the space of medium runner direction movement, the first elastic component floating valve seat being imposed to active force in medium runner direction is provided with in space.Technical solutions of the utility model, have and can ensure sealing effect for a long time.
Description
Technical field
The utility model relates to a kind of ball valve, particularly a kind of seal butterfly valve with floating valve seat.
Background technique
Along with market constantly develop, increasing operating mode medium requirements open-shut device-valve plays a role in the duct than being only unidirectional pressure-bearing problem.Increasing piping design all needs bidirectional bearing requirement.In development in recent years, pipeline open-shut device-butterfly valve is more and more subject to the favor of applying unit.Butterfly valve is Flap valve again, is the simple modulating valve of a kind of structure, also can be used for the switch control rule of low pressure pipeline medium simultaneously.The flap that butterfly valve is or butterfly plate are disk, rotate a kind of valve reaching open and close around valve shaft, and on pipeline, main rising is cut off and throttling action.Butterfly valve has light and handy feature, will save material than other valves, and structure is simple, and opening and closing is rapid, and cut-out and throttling can be used, and fluid resistance is little, rapid operation.
Traditional butterfly valve is primarily of valve body, butterfly plate, valve shaft and the actuator composition driving valve shaft rotation, valve body is provided with that medium enters runner, medium flows out runner and connecting media and enters the connection chamber that runner and medium flow out runner, butterfly plate is located in connection chamber, and butterfly plate is connected with valve shaft, can rotate with the rotation of valve shaft.Be installed with Sealing between the circumferential edge of butterfly plate and valve body, formed the sealing between butterfly plate and valve body with this.But through using for a long time, the friction occurred between Sealing and butterfly plate can cause Sealing or the wearing and tearing of dish plate, thus causes sealing effect to be deteriorated.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of seal butterfly valve with floating valve seat that can ensure sealing effect for a long time.
For achieving the above object, the utility model provides following technological scheme: a kind of seal butterfly valve with floating valve seat, comprise valve body, butterfly plate, butterfly plate seal ring, valve seat, valve shaft and the driven unit composition driving valve shaft to rotate, valve body is provided with medium runner and connection chamber, described medium runner comprises medium and enters runner, medium flows out runner, described connection chamber connecting media enters runner and medium flows out runner, butterfly plate is located in connection chamber, described butterfly plate seal ring is fixed on described butterfly plate, described valve seat is arranged on medium and enters in runner and match with described butterfly plate seal ring and arrange, described butterfly plate is connected with valve shaft, also comprise disc holder, described valve seat is set to floating valve seat, described disc holder is arranged on the corresponding medium of floating valve seat and enters side, runner direction, be provided with between described disc holder and valve body for floating valve seat in the space of medium runner direction movement, the first elastic component floating valve seat being imposed to active force in medium runner direction is provided with in described space.
By adopting technique scheme, utilize working medium energy dynamics sealing in pipeline, no matter medium applies pressure from forward or repercussion to the valve seat of closing, floating valve seat all can automatically and butterfly plate seal ring fit tightly, and float with butterfly plate amount of deformation under stress, ensure that the dynamic seal (packing) of valve.
The utility model is arranged further: described space is placed in the corresponding medium of floating valve seat and flows out runner side, described first elastic component is set to elasticity "O"-ring, the inwall in the corresponding medium runner direction of described floating valve seat is tapered setting, the internal diameter of described floating valve seat flows out channel direction by medium inlet passage to medium and increases setting gradually, and the outer wall of described butterfly plate seal ring is set to the inclined-plane suitable with described floating valve seat.
By adopting technique scheme, when ensure that in off position, the pressure medium that MEDIA FLOW enters runner side makes to flow out pressure that runner side produces thus floating valve seat can better and butterfly plate seal ring fit tightly to floating valve seat to medium, and plays sealing effect.
The utility model is arranged further: the internal diameter of the corresponding disc holder one end of described floating valve seat is less than the internal diameter of described disc holder.
By adopt technique scheme, MEDIA FLOW enter runner side pressure medium can better to floating valve seat to medium flow out runner side generation pressure.
The utility model is arranged further: the described butterfly plate seal ring Relative Floating valve seat the other end is provided with the second elastic component.
By adopting technique scheme, when floating valve seat moves, the second elastic component plays buffer function to butterfly plate seal ring, decreases the wearing and tearing of butterfly plate seal ring, extends working life.
The utility model is arranged further: described second elastic component is set to elasticity "O"-ring.
By adopting technique scheme, make structure more simple, stable.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model example structure figure;
Fig. 2 is the A portion enlarged view of Fig. 1.
Embodiment
See accompanying drawing 1, accompanying drawing 2, the disclosed seal butterfly valve with floating valve seat of the utility model, comprise valve body 1, butterfly plate 2, butterfly plate seal ring 3, valve seat 4, valve shaft 5 and the driven unit 6 driving valve shaft 5 to rotate form, valve body 1 is provided with medium runner and connection chamber 101, described medium runner comprises medium and enters runner 102, medium flows out runner 103, described connection chamber 101 connecting media enters runner 102 and flows out runner 103 with medium, butterfly plate 2 is located in connection chamber 101, described butterfly plate seal ring 3 is fixed on described butterfly plate 2, described valve seat 4 is arranged on medium and enters in runner 102 and match with described butterfly plate seal ring 3 and arrange, described butterfly plate 2 is connected with valve shaft 5, also comprise disc holder 7, described valve seat 4 is set to floating valve seat, described disc holder 7 is arranged on the corresponding medium of floating valve seat and enters side, runner 102 direction, be provided with between described disc holder 7 and valve body 1 for floating valve seat in the space 104 of medium runner direction movement, the first elastic component 8 floating valve seat being imposed to active force in medium runner direction is provided with in described space 104.By adopting technique scheme, utilize working medium energy dynamics sealing in pipeline, no matter medium applies pressure from forward or repercussion to the valve seat of closing, floating valve seat all can automatically and butterfly plate seal ring 3 fit tightly, and float with butterfly plate 2 amount of deformation under stress, ensure that the dynamic seal (packing) of valve.
The present embodiment is arranged further: described space 104 is placed in the corresponding medium of floating valve seat and flows out runner 103 side, described first elastic component 8 is set to elasticity "O"-ring, the inwall in the corresponding medium runner direction of described floating valve seat is tapered setting, the internal diameter of described floating valve seat flows out path 10 3 direction by medium inlet passage 102 to medium and increases setting gradually, and the outer wall of described butterfly plate seal ring 3 is set to the inclined-plane suitable with described floating valve seat.By adopting technique scheme, when ensure that in off position, the pressure medium that MEDIA FLOW enters runner 102 side makes to flow out pressure that runner 103 side produces thus floating valve seat can better and butterfly plate seal ring 3 fit tightly to floating valve seat to medium, and plays sealing effect.
The present embodiment is arranged further: the internal diameter of corresponding disc holder 7 one end of described floating valve seat is less than the internal diameter of described disc holder 7.By adopt technique scheme, MEDIA FLOW enter runner 102 side pressure medium can better to floating valve seat to medium flow out runner 103 side generation pressure.
The present embodiment is arranged further: the described butterfly plate seal ring 3 Relative Floating valve seat the other end is provided with the second elastic component 9.By adopting technique scheme, when floating valve seat moves, the second elastic component 9 pairs butterfly plate seal ring 3 plays buffer function, decreases the wearing and tearing of butterfly plate seal ring 3, extends working life.
The present embodiment is arranged further: described second elastic component 9 is set to elasticity "O"-ring.By adopting technique scheme, make structure more simple, stable.
Claims (5)
1. the seal butterfly valve with floating valve seat, comprise valve body, butterfly plate, butterfly plate seal ring, valve seat, valve shaft and the driven unit composition driving valve shaft to rotate, valve body is provided with medium runner and connection chamber, described medium runner comprises medium and enters runner, medium flows out runner, described connection chamber connecting media enters runner and medium flows out runner, butterfly plate is located in connection chamber, described butterfly plate seal ring is fixed on described butterfly plate, described valve seat is arranged on medium and enters in runner and match with described butterfly plate seal ring and arrange, described butterfly plate is connected with valve shaft, it is characterized in that: also comprise disc holder, described valve seat is set to floating valve seat, described disc holder is arranged on the corresponding medium of floating valve seat and enters side, runner direction, be provided with between described disc holder and valve body for floating valve seat in the space of medium runner direction movement, the first elastic component floating valve seat being imposed to active force in medium runner direction is provided with in described space.
2. the seal butterfly valve with floating valve seat according to claim 1, it is characterized in that: described space is placed in the corresponding medium of floating valve seat and flows out runner side, described first elastic component is set to elasticity "O"-ring, the inwall in the corresponding medium runner direction of described floating valve seat is tapered setting, the internal diameter of described floating valve seat flows out channel direction by medium inlet passage to medium and increases setting gradually, and the outer wall of described butterfly plate seal ring is set to the inclined-plane suitable with described floating valve seat.
3. the seal butterfly valve with floating valve seat according to claim 2, is characterized in that: the internal diameter of the corresponding disc holder one end of described floating valve seat is less than the internal diameter of described disc holder.
4. the seal butterfly valve with floating valve seat according to claim 1-3 any one claim, is characterized in that: the described butterfly plate seal ring Relative Floating valve seat the other end is provided with the second elastic component.
5. the seal butterfly valve with floating valve seat according to claim 4, is characterized in that: described second elastic component is set to elasticity "O"-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576149.XU CN204140899U (en) | 2014-09-30 | 2014-09-30 | With the seal butterfly valve of floating valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576149.XU CN204140899U (en) | 2014-09-30 | 2014-09-30 | With the seal butterfly valve of floating valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140899U true CN204140899U (en) | 2015-02-04 |
Family
ID=52417584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420576149.XU Active CN204140899U (en) | 2014-09-30 | 2014-09-30 | With the seal butterfly valve of floating valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140899U (en) |
-
2014
- 2014-09-30 CN CN201420576149.XU patent/CN204140899U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |