CN207621375U - A kind of self-pressure-sealed hard seal butterfly valve - Google Patents
A kind of self-pressure-sealed hard seal butterfly valve Download PDFInfo
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- CN207621375U CN207621375U CN201721665071.9U CN201721665071U CN207621375U CN 207621375 U CN207621375 U CN 207621375U CN 201721665071 U CN201721665071 U CN 201721665071U CN 207621375 U CN207621375 U CN 207621375U
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Abstract
The utility model provides a kind of self-pressure-sealed hard seal butterfly valve, including valve body, the valve plate coordinated equipped with valve seat and with the valve seat in the valve body, and the valve plate can be pasted close or remote from valve seat, and the by-passing valve of connecting valve seat both sides is additionally provided on the valve body.The frictional dissipation generated when the setting of by-passing valve can reduce valve opening, close in self-pressure-sealed hard seal butterfly valve described in the utility model and torque, it is self-pressure-sealed, ensure sealing performance after closing, formation is self-pressure-sealed, and pressure is bigger, and sealing performance is better.
Description
Technical field
The utility model belongs to valve technology field, more particularly, to a kind of self-pressure-sealed hard seal butterfly valve.
Background technology
Butterfly valve plays the role of cut-out and throttling in the duct, in metallurgy, steel, petrochemical industry, electric power, water conservancy, environmental protection
Etc. industries be used widely.Two kinds of seal forms of the flexible soft seal of butterfly valve and metal hard-sealing, the sealing ring of soft seal can
To be embedded on valve body or be attached to valve plate periphery, sealing performance is preferable, but the service life is usually shorter；And the service life sealed firmly is logical
It is often longer than soft seal, but it is bad to seal most sealing effect firmly.
Invention content
In view of this, the utility model is directed to a kind of self-pressure-sealed hard seal butterfly valve, to solve existing soft seal
The bad problem of butterfly valve short life, hard seal butterfly valve sealing effect.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of self-pressure-sealed hard seal butterfly valve, including valve body, the valve body is interior to be equipped with valve seat and coordinates with the valve seat
Valve plate, the valve plate can paste close or remote from valve seat, and the by-passing valve of connecting valve seat both sides is additionally provided on the valve body.
Further, the valve plate periphery is equipped with valve plate sealing ring.
Further, the valve plate sealing ring include with the close-connected sealing ring ontology of valve plate and with sealing ring ontology phase
Diaphragm seal even；
The valve seat is to tilt valve seat, and it is arc-shaped build-up welding sealing ring, the valve that vertical section is equipped on the inside of the valve seat
Seat rear portion is equipped with conical limit plate；
The sealing ring ontology fits closely or separate with limiting plate, and the diaphragm seal is closely pasted with the build-up welding sealing ring
It closes or separate, in the case of no pressure difference, the angle of inclination of the diaphragm seal is consistent with the angle of inclination of valve seat.
Further, the angle between the diaphragm seal and horizontal plane is 30-60 °.
Further, the valve plate sealing ring is metal o-ring.
Further, the valve plate sealing ring is connected with the valve plate by bolt.
Further, sealing ring is equipped between the valve plate sealing ring and the valve plate.
Further, the sealing ring between the valve plate sealing ring and the valve plate is metal o-ring.
Further, the valve plate is equipped with the valve stick through the valve body.
Further, the valve seat is built-up welding valve seat.
Compared with the existing technology, self-pressure-sealed hard seal butterfly valve described in the utility model has the advantage that：
The setting of by-passing valve can reduce valve opening, close in self-pressure-sealed hard seal butterfly valve described in the utility model
The frictional dissipation generated when closing and torque, it is self-pressure-sealed, ensure sealing performance after closing, formation is self-pressure-sealed, and pressure is bigger,
Sealing performance is better.
Description of the drawings
The attached drawing for constituting the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type are not constituted improper limits to the present invention for explaining the utility model.
In attached drawing：
Fig. 1 is the structural schematic diagram of the self-pressure-sealed hard seal butterfly valve described in the utility model embodiment；
Fig. 2 is enlarged structure schematic diagram in A in Fig. 1.
Reference sign：
1- valve bodies；2- valve plates；3- valve sticks；4- by-passing valves；5- valve seats；6- valve plate sealing rings；61- sealing ring ontologies；62- is close
Mounting；7- sealing rings；8- limiting plates；9- build-up welding sealing rings.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more this feature.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of self-pressure-sealed hard seal butterfly valve, be equipped with as shown in Figures 1 and 2, including valve body 1, in valve body 1 valve seat 5 and
The valve plate 2 coordinated with valve seat 5, valve plate 2 can be pasted close or remote from valve seat 5, and 5 both sides space of connecting valve seat is additionally provided on valve body 1
By-passing valve 4.
2 periphery of valve plate is equipped with valve plate sealing ring 6.
As shown in Fig. 2, valve plate sealing ring 6 include with 2 close-connected sealing ring ontology 61 of valve plate and with sealing ring ontology
61 connected diaphragm seals 62；
Valve seat 5 is to tilt valve seat, and 5 inside of valve seat is equipped with vertical section for arc-shaped build-up welding sealing ring 9, after the valve seat 5
Portion is equipped with conical limit plate 8；
Sealing ring ontology 61 fits closely or separate with limiting plate 8, and diaphragm seal 62 fits closely or far with build-up welding sealing ring 9
From in the case of no pressure difference, the angle of inclination of diaphragm seal 62 is consistent with the angle of inclination of valve seat 5；When having pressure difference
Diaphragm seal 62 rotates the extruding to increase to build-up welding sealing ring 9 by fulcrum of the root of diaphragm seal 62, forms sealing.
Angle between diaphragm seal 62 and horizontal plane is 30-60 °.Angle in this example between diaphragm seal 62 and horizontal plane
It is 45 °.
Valve plate sealing ring 6 is metal o-ring.Metal o-ring can be that stainless steel, Cu, Fe or its hard alloy etc. are close
Seal.In this example, sealing ring ontology 61 is stainless steel metal ontology, and diaphragm seal 62 is stainless steel sealing metal piece.
Valve plate sealing ring 6 is connected with valve plate 2 by bolt.
Sealing ring 7 is equipped between valve plate sealing ring 6 and valve plate 2.
Sealing ring 7 between valve plate sealing ring 6 and valve plate 2 is metal o-ring.
Valve plate 2 is equipped with the valve stick 3 through valve body 1.Valve stick 3 drives the patch of valve plate 2 close or remote from valve seat 5.
The course of work of this example：
When the valve is closed：Valve stick 3 drives 2 clockwise movement of valve plate, when valve plate 2 touches the valve seat 5 on valve body 1
Valve plate stop motion, at this time valve plate 2 be closed, by-passing valve 4 is turned off, due to the effect of pressure, on valve plate sealing ring 6
Diaphragm seal 62 be the sector-meeting of stainless steel sealing metal into valve seat 5 build-up welding sealing ring 9 squeeze, formed it is self-pressure-sealed.
When needing valve opening：By-passing valve 4 is first opened, amount of differential pressure becomes smaller before and after valve plate 2, the diaphragm seal on valve plate sealing ring 6
62 i.e. stainless steel sealing metal sector-meetings are rebounded automatically, are become smaller with the amount of compression of build-up welding sealing ring 9 in valve seat 5, and valve stick 3 drives at this time
2 counterclockwise movement of valve plate, until valve plate 2 is perpendicular to water (flow) direction.
Valve can reduce damage and the valve of valve plate sealing ring 6 and valve seat 5 that friction is brought in normally-open and closing
Torque when door open and close, extends the service life of valve, and after closing, formation is self-pressure-sealed, and pressure is bigger, and sealing performance is got over
It is good.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of self-pressure-sealed hard seal butterfly valve, it is characterised in that：Including valve body (1), valve seat is equipped in the valve body (1)
(5) and the valve plate (2) with the valve seat (5) cooperation, the valve plate (2) can paste close or remote from valve seat (5), the valve body (1)
On be additionally provided with connection valve seat (5) both sides by-passing valve (4).
2. self-pressure-sealed hard seal butterfly valve according to claim 1, it is characterised in that：Valve plate (2) periphery is equipped with
Valve plate sealing ring (6).
3. self-pressure-sealed hard seal butterfly valve according to claim 2, it is characterised in that：Valve plate sealing ring (6) packet
The diaphragm seal (62) for including and valve plate (2) close-connected sealing ring ontology (61) and being connected with sealing ring ontology (61)；
The valve seat (5) is to tilt valve seat, and it is arc-shaped build-up welding sealing ring (9), institute that vertical section is equipped on the inside of the valve seat (5)
It states valve seat (5) rear portion and is equipped with conical limit plate (8)；
The sealing ring ontology (61) is fitted closely with limiting plate (8) or separate, the diaphragm seal (62) and built-up welding sealing
Ring (9) fits closely or separate, in the case of no pressure difference, the angle of inclination of the diaphragm seal (62) and inclining for valve seat (5)
Rake angle is consistent.
4. self-pressure-sealed hard seal butterfly valve according to claim 3, it is characterised in that：The diaphragm seal (62) and level
Angle between face is 30-60 °.
5. self-pressure-sealed hard seal butterfly valve according to claim 4, it is characterised in that：The valve plate sealing ring (6) is
Metal o-ring.
6. according to the self-pressure-sealed hard seal butterfly valve of claim 2-5 any one of them, it is characterised in that：The valve plate sealing
Circle (6) is connected with the valve plate (2) by bolt.
7. self-pressure-sealed hard seal butterfly valve according to claim 6, it is characterised in that：The valve plate sealing ring (6) with
Sealing ring (7) is equipped between the valve plate (2).
8. self-pressure-sealed hard seal butterfly valve according to claim 7, it is characterised in that：The valve plate sealing ring (6) with
Sealing ring (7) between the valve plate (2) is metal o-ring.
9. according to the self-pressure-sealed hard seal butterfly valve of claim 1-5 or 7-8 any one of them, it is characterised in that：The valve
Plate (2) is equipped with the valve stick (3) through the valve body (1).
10. self-pressure-sealed hard seal butterfly valve according to claim 9, it is characterised in that：The valve seat (5) is built-up welding valve
Seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721665071.9U CN207621375U (en) | 2017-12-05 | 2017-12-05 | A kind of self-pressure-sealed hard seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721665071.9U CN207621375U (en) | 2017-12-05 | 2017-12-05 | A kind of self-pressure-sealed hard seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207621375U true CN207621375U (en) | 2018-07-17 |
Family
ID=62825286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721665071.9U Active CN207621375U (en) | 2017-12-05 | 2017-12-05 | A kind of self-pressure-sealed hard seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207621375U (en) |
-
2017
- 2017-12-05 CN CN201721665071.9U patent/CN207621375U/en active Active
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