CN103591308A - Sealing structure of three-connection-rod butterfly valve corrugated pipe - Google Patents
Sealing structure of three-connection-rod butterfly valve corrugated pipe Download PDFInfo
- Publication number
- CN103591308A CN103591308A CN201310591181.5A CN201310591181A CN103591308A CN 103591308 A CN103591308 A CN 103591308A CN 201310591181 A CN201310591181 A CN 201310591181A CN 103591308 A CN103591308 A CN 103591308A
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- China
- Prior art keywords
- valve
- sealing
- sealing structure
- valve plate
- valve seat
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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
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a sealing structure of a three-connection-rod butterfly valve corrugated pipe. The sealing structure comprises a valve body, a valve plate and a valve seat. The valve body and the valve seat are fixedly connected, and a valve plate main shaft is vertically fixed to the middle of the valve plate. One end of a main rocker and one end of an auxiliary rocker are hinged to the valve plate main shaft, and the other end of the main rocker and the other end of the auxiliary rocker are hinged to a rack respectively. A sealing structure body is arranged between the valve plate and the valve seat and comprises a hard sealing structure body and a corrugated pipe sealing structure body. The sealing structure of the three-connection-rod butterfly valve corrugated pipe is simple in structure and good in sealing effect, and the service life of the valve is long.
Description
Technical field
The present invention relates to a kind of sealing configuration, relate in particular to a kind of three Connecting rod butterfly valve corrugated tube sealing structures.
Background technique
Along with the development of metallurgical steel-making cause of modern times, for reducing costs, be convenient to management, more and more application butterfly valves substitute gate valve.Butterfly valve is again Flap valve, be a kind of modulating valve simple in structure, the switch that also can be used for low pressure pipeline medium is simultaneously controlled, and butterfly valve refers to that closure member (flap or butterfly plate) is disk, around valve shaft, rotate to reach a kind of valve of open and close, on pipeline, main rising cut off and throttling action.Because application of temperature is higher, rubber seal heatproof is not enough, needs to adopt very stiff and demanding seal butterfly valve, and during simultaneously due to high temperature, sealing material thermal expansion coefficient is large, generally adopts three link butterfly valves.Three link butterfly valve valve plates and valve seat machining accuracy are high, though sealing surface departs from rapidly, long-term use still can cause small scratch, impact sealing.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of three Connecting rod butterfly valve corrugated tube sealing structures of simple in structure, good sealing effect.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of three Connecting rod butterfly valve corrugated tube sealing structures are provided, comprise valve body, valve plate and valve seat, described valve body is fixedly connected with valve seat, described valve plate neutral position is vertically fixed with a valve plate main shaft, main rocker and being hinged on described valve plate main shaft from one end of rocking bar, described main rocker and being hinged on respectively a frame from the other end of rocking bar, between described valve plate and valve seat, be provided with sealing configuration, described sealing configuration comprises hard sealing structure and corrugated tube sealing structure, described hard sealing structure is a right angle frame, one bar limit is vertically fixed on the end of described valve seat, another side is the sealing surface contacting with described valve plate, described corrugated tube sealing structure is arranged on the outside of described hard sealing structure, comprise bellows, dunnage and sealing panel, described bellows is arranged between described hard sealing structure and described dunnage, its one end is fixed on described valve seat, the other end connects described sealing panel, described dunnage is fixed on described valve seat, the surface of contact of described valve plate and described sealing panel is an inclined-plane.
The inclined-plane of the surface of contact of described valve plate and described sealing panel and the angle between vertical surface are α, and the size of α is between 1～1.5 °.
Described bellows adopts high performance elastic metallic bellows.
Advantage and good effect that the present invention has are: three Connecting rod butterfly valve corrugated tube sealing structures of the present invention, adopt hard sealing structure and corrugated tube sealing structure double-layer seal, and metal bellows adopts high performance elastic metallic bellows, flexible fatigue life is long, after hard sealing structure is worn, still can effectively guarantee the sealability of valve, extend the working life of valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure:
1, valve body 2, valve plate 3, valve seat 4, valve plate main shaft
5, main rocker 6, from rocking bar 7, frame 8, hard sealing structure
9, corrugated tube sealing structure 10, bellows 11, dunnage 12, sealing panel
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, three Connecting rod butterfly valve corrugated tube sealing structures of the embodiment of the present invention, comprise valve body 1, valve plate 2 and valve seat 3, described valve seat 3 is fixedly connected in the inner chamber of described valve body 1, described valve plate 2 neutral positions are vertically fixed with a valve plate main shaft 4, main rocker 5 and being hinged on described valve plate main shaft 4 from one end of rocking bar 6, described main rocker 5 and being hinged on respectively a frame 7 from the other end of rocking bar 6, between described valve plate 2 and valve seat 3, be provided with sealing configuration, described sealing configuration comprises hard sealing structure 8 and corrugated tube sealing structure 9, described hard sealing structure 8 is a right angle frame, one bar limit is vertically fixed on the end of described valve seat 3, another side is the sealing surface contacting with described valve plate 2, described corrugated tube sealing structure 9 is arranged on the outside of described hard sealing structure 8, comprise bellows 10, dunnage 11 and sealing panel 12, described bellows 10 is arranged between described hard sealing structure 8 and described dunnage 11, its one end is fixed on described valve seat 3, the other end connects described sealing panel 12, described dunnage 11 is fixed on described valve seat 3, described valve plate 2 is an inclined-plane with the surface of contact of described sealing panel 12.
The inclined-plane of the surface of contact of described valve plate 2 and described sealing panel 12 and the angle between vertical surface are α, and the size of α is between 1～1.5 °.
Described bellows adopts high performance elastic metallic bellows.
In use, shaking main rocker 5 is driven and from rocking bar 6, valve plate main shaft 4 is moved left and right by frame 7, when wanting throttle down, valve plate 2 is moved to the left, valve plate 2 presses to valve seat 3, when valve plate 2 touches touch panel 12, bellows 10 starts to produce resiliently deformable, sealing panel 12 fits tightly with the sealing surface of valve plate 2, form first tight seal, the certain position moving when valve plate 2, valve plate 2 contacts with the sealing surface of hard sealing structure 8, sealing surface is weldering cemented carbide sealing surface herein, form second sealing with valve plate 2, thereby the sealability of valve is increased greatly, extended working life.
Above embodiments of the invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the scope of the invention and improvement etc., within all should still belonging to this patent covering scope.
Claims (3)
1. three Connecting rod butterfly valve corrugated tube sealing structures, it is characterized in that: comprise valve body, valve plate and valve seat, described valve body is fixedly connected with valve seat, described valve plate neutral position is vertically fixed with a valve plate main shaft, main rocker and being hinged on described valve plate main shaft from one end of rocking bar, described main rocker and being hinged on respectively a frame from the other end of rocking bar, between described valve plate and valve seat, be provided with sealing configuration, described sealing configuration comprises hard sealing structure and corrugated tube sealing structure, described hard sealing structure is a right angle frame, one bar limit is vertically fixed on the end of described valve seat, another side is the sealing surface contacting with described valve plate, described corrugated tube sealing structure is arranged on the outside of described hard sealing structure, comprise bellows, dunnage and sealing panel, described bellows is arranged between described hard sealing structure and described dunnage, its one end is fixed on described valve seat, the other end connects described sealing panel, described dunnage is fixed on described valve seat, the surface of contact of described valve plate and described sealing panel is an inclined-plane.
2. three Connecting rod butterfly valve corrugated tube sealing structures according to claim 1, is characterized in that: the inclined-plane of the surface of contact of described valve plate and described sealing panel and the angle between vertical surface are α, and the size of α is between 1～1.5 °.
3. three Connecting rod butterfly valve corrugated tube sealing structures according to claim 1, is characterized in that: described bellows adopts high performance elastic metallic bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310591181.5A CN103591308A (en) | 2013-11-20 | 2013-11-20 | Sealing structure of three-connection-rod butterfly valve corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310591181.5A CN103591308A (en) | 2013-11-20 | 2013-11-20 | Sealing structure of three-connection-rod butterfly valve corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103591308A true CN103591308A (en) | 2014-02-19 |
Family
ID=50081553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310591181.5A Pending CN103591308A (en) | 2013-11-20 | 2013-11-20 | Sealing structure of three-connection-rod butterfly valve corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103591308A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735932A (en) * | 2019-10-10 | 2020-01-31 | 常州大学 | Connecting rod butterfly valve with connecting rod adjusting mechanism |
| CN111677891A (en) * | 2020-05-29 | 2020-09-18 | 江苏浩博塑业有限公司 | Linkage sealing type air valve |
-
2013
- 2013-11-20 CN CN201310591181.5A patent/CN103591308A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735932A (en) * | 2019-10-10 | 2020-01-31 | 常州大学 | Connecting rod butterfly valve with connecting rod adjusting mechanism |
| CN111677891A (en) * | 2020-05-29 | 2020-09-18 | 江苏浩博塑业有限公司 | Linkage sealing type air valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140219 |
|
| WD01 | Invention patent application deemed withdrawn after publication |