CN104712777A - Novel soft sealing eccentric butterfly valve - Google Patents
Novel soft sealing eccentric butterfly valve Download PDFInfo
- Publication number
- CN104712777A CN104712777A CN201310664783.9A CN201310664783A CN104712777A CN 104712777 A CN104712777 A CN 104712777A CN 201310664783 A CN201310664783 A CN 201310664783A CN 104712777 A CN104712777 A CN 104712777A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- rotating shaft
- eccentric
- valve plate
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The invention provides a novel soft sealing eccentric butterfly valve, which relates to the field of industrial pipeline valves. The novel soft sealing eccentric butterfly valve comprises a valve body; a valve plate is arranged in the valve body; the upper part and the lower part of the valve body are provided with an upper rotating shaft and a lower rotating shaft respectively; the valve plate is fixed to the upper rotating shaft and the lower rotating shaft through an upper fixing pin and a lower fixing pin respectively; the lower rotating shaft is connected with the bottom of the valve body through a lower shaft sleeve; the part, where the upper rotating shaft and the valve body are in contact, is provided with sealing filler and is compressed and fixed by an upper gland arranged at the top position of the valve body; the end face of the valve plate is provided with a high-temperature-resistant sealing ring. The novel soft sealing eccentric butterfly valve has the effects that soft sealing of the high-temperature-resistant sealing ring is adopted, when the eccentric butterfly valve is closed, the sealing ring of the butterfly valve is closely contacted with the valve body, and the eccentric valve plate is not in directly contacted with the valve body and no friction is generated between the eccentric valve plate and the valve body, so that the valve plate cannot be extruded and scratched by the valve body, the service life of the valve plate is prolonged, and moreover, the soft sealing performance of the high-temperature-resistant rubber ring is also improved, so that the service life of the eccentric butterfly valve is prolonged.
Description
Technical field
The present invention relates to industrial pipeline valve field.
Background technique
Current eccentric-butterfly-valve is applied to metallurgy, electric power, petrochemical industry, and on draining and urban construction industrial pipeline, as adjust flux and block fluid use, mainly be used widely on some Urban High Temperature pipeline base facilities and high temperature chemical engineering industry pipeline base facility, therefore, require high to working life of eccentric-butterfly-valve and sealability, and present stage is applied in eccentric-butterfly-valve on these fields in order to what adapt to that hot environment adopts is hard sealing structure, hard sealing structure is that eccentric butterfly plate and valve body contact close, because the eccentric butterfly plate of this sealing configuration and valve body are in extruding all the time, scraping state, resistance is apart from large, friction is fast, therefore working life is not long, and cause sealability to reduce.
Summary of the invention
The object of the invention is: provide a kind of novel soft seal eccentric-butterfly-valve, good sealing effect, long service life.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of novel soft seal eccentric-butterfly-valve, comprise valve body, valve plate is provided with in valve body, it is characterized in that: described valve body is respectively equipped with rotating shaft and lower rotary shaft up and down, described valve plate is fixed with upper rotating shaft and lower rotary shaft respectively by upper fixing pin and lower fixing pin, described lower rotary shaft is connected with body base by Lower shaft sleeve, stuffing box packing is provided with in upper rotating shaft and valve body contact portion, and be fixed by the upper press cover that body top position is provided with, above-described valve plate end face is provided with refractory seal ring.
Above-described valve body top is also provided with handwheel, and described handwheel is connected with upper rotating shaft, and rotating shaft can be driven to rotate.
The effect that the present invention reaches is: because eccentric-butterfly-valve adopts the soft seal of refractory seal ring, during closed eccentric-butterfly-valve, butterfly valve seal circle and valve body contact close, the not direct contact friction with valve body of eccentric valve plate, therefore valve plate can not by valve body extruding scraping, add the working life of valve plate, and utilize high temperature resistant cushion rubber soft seal sealability also to improve, therefore make increase the working life of eccentric-butterfly-valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1. handwheel; 2. upper press cover; 3. stuffing box packing; 4. go up rotating shaft; 5. valve body; 6. go up fixing pin; 7. valve plate; 8. descend fixing pin; 9. lower rotary shaft; 10. Lower shaft sleeve; 11. refractory seal rings.
Embodiment
From accompanying drawing 1, the present invention includes valve body 5, valve plate 7 is provided with in valve body 5, described valve body about 5 is respectively equipped with rotating shaft 4 and lower rotary shaft 9, described valve plate 7 is fixed with upper rotating shaft 4 and lower rotary shaft 9 respectively by upper fixing pin 6 and lower fixing pin 8, described lower rotary shaft 9 is connected with bottom valve body 5 by Lower shaft sleeve 10, stuffing box packing 3 is provided with valve body 5 contacting part in upper rotating shaft 4, and be fixed by the upper press cover 2 that valve body 5 tip position is provided with, above-described valve plate 7 end face is provided with refractory seal ring 11.Above-described valve body 5 top is also provided with handwheel 1, and described handwheel 1 is connected with upper rotating shaft 4, and rotating shaft 4 can be driven to rotate.
During use, rotate clockwise the first run 1, it is inner that refractory seal ring 11 above valve plate 7 departs from valve body 5, eccentric disk version is opened, at this moment pipe interior fluid flows through eccentric-butterfly-valve, rotate counterclockwise handwheel 1, it is inner that refractory seal ring 11 above valve plate 7 is close to valve body 5, valve plate 7 and valve body 5 are tightly closed, fluid is tightly dammed, because eccentric-butterfly-valve adopts the soft seal design of refractory seal ring 11, during closed eccentric-butterfly-valve, butterfly valve seal ring contacts closed with valve body 5, the valve plate 7 not direct contact friction with valve body 5, therefore valve plate 7 can not be extruded scraping by valve body 5, add the working life of valve plate 7.
Claims (2)
1. a novel soft seal eccentric-butterfly-valve, comprise valve body, valve plate is provided with in valve body, it is characterized in that: described valve body is respectively equipped with rotating shaft and lower rotary shaft up and down, described valve plate is fixed with upper rotating shaft and lower rotary shaft respectively by upper fixing pin and lower fixing pin, described lower rotary shaft is connected with body base by Lower shaft sleeve, stuffing box packing is provided with in upper rotating shaft and valve body contact portion, and be fixed by the upper press cover that body top position is provided with, above-described valve plate end face is provided with refractory seal ring.
2. soft seal eccentric-butterfly-valve according to claim 1, is characterized in that: described valve body top is also provided with handwheel, and described handwheel is connected with upper rotating shaft, and rotating shaft can be driven to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664783.9A CN104712777A (en) | 2013-12-11 | 2013-12-11 | Novel soft sealing eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664783.9A CN104712777A (en) | 2013-12-11 | 2013-12-11 | Novel soft sealing eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712777A true CN104712777A (en) | 2015-06-17 |
Family
ID=53412366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310664783.9A Pending CN104712777A (en) | 2013-12-11 | 2013-12-11 | Novel soft sealing eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712777A (en) |
-
2013
- 2013-12-11 CN CN201310664783.9A patent/CN104712777A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150617 |