CN206904284U - A kind of Bidirectioning sealed fixing ball valve - Google Patents
A kind of Bidirectioning sealed fixing ball valve Download PDFInfo
- Publication number
- CN206904284U CN206904284U CN201720759235.8U CN201720759235U CN206904284U CN 206904284 U CN206904284 U CN 206904284U CN 201720759235 U CN201720759235 U CN 201720759235U CN 206904284 U CN206904284 U CN 206904284U
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- CN
- China
- Prior art keywords
- valve
- valve seat
- ball valve
- seal groove
- fixing ball
- 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 discloses a kind of Bidirectioning sealed fixing ball valve,Including fixing ball valve body,The fixing ball valve body includes valve body,Bonnet,Spheroid,Valve rod and handwheel,The bonnet is bolted on valve body by setting,Connection is covered by the stem guiding of setting between the valve rod and valve body,The spheroid is placed in valve body,And valve seat of fixed ball valve is provided between spheroid and valve body,The valve seat of fixed ball valve includes valve seat body,Bracing ring and valve seat insert,One end that the valve seat body contacts with spheroid is provided with the first seal groove and the second seal groove,The cross sectional shape of first seal groove and the second seal groove is identical with the cross sectional shape of bracing ring and valve seat insert respectively,The bracing ring and valve seat insert are respectively in first seal groove and the second seal groove,The section outline of the valve seat insert is triangle；The Bidirectioning sealed fixing ball valve can reduce moment of torsion needed for pretightning force and spinning ball when ensureing sealing effectiveness.
Description
Technical field
The utility model belongs to more particularly to a kind of Bidirectioning sealed fixing ball valve.
Background technology
Fixing ball valve, it is high-performance ball valve of new generation, suitable for long-distance transport pipes and general industry pipeline, and in fixing ball valve
Use during, usually can be because of corrosion and the impurity of medium in ball valve the problems such as, situations such as causing inlet and outlet to be revealed,
Contacted therefore, an arc surface sealing ring would generally be installed in the inner side of valve seat with spheroid, form sealing surface, and increase the number of spring
Measure or increase spring model to reach the effect that pretightning force ensures sealing, be brought into close contact sealing ring and spheroid, and use and be somebody's turn to do
Kind mode can cause, when opening and closing valve, to increase the moment of torsion and frictional force of valve rod, damage the sealing surface of valve seat, lead again
Cause seal failure.
Utility model content
The purpose of this utility model, which is to provide one kind, to reduce pretightning force and spinning ball institute when ensureing sealing effectiveness
Need the Bidirectioning sealed fixing ball valve of moment of torsion.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：
A kind of Bidirectioning sealed fixing ball valve, including fixing ball valve body, the fixing ball valve body include valve body, valve
Lid, spheroid, valve rod and handwheel, the bonnet are bolted on valve body by setting, are passed through between the valve rod and valve body
The stem guiding set connection of setting, the spheroid is placed in valve body and valve seat of fixed ball valve is provided between spheroid and valve body, described
Valve seat of fixed ball valve includes valve seat body, bracing ring and valve seat insert, and one end that the valve seat body contacts with spheroid is set
Have the first seal groove and the second seal groove, the cross sectional shape of first seal groove and the second seal groove respectively with bracing ring and valve
The cross sectional shape of seat sealing ring is identical, and the bracing ring and valve seat insert are respectively embedded in first seal groove and the second sealing
In groove, the section outline of the valve seat insert is triangle.
Preferably, the valve seat insert includes first surface, second surface and the 3rd surface, first surface is positioned at interior
Side, second surface are located at lower section, and the 3rd surface is located at outside.
Preferably, the second surface and the angle on the 3rd surface are 80-110 degree, the second surface and the 3rd table
The intersecting side in face is sealing, and the sealing forms arc-shaped edges, also can according to circumstances adjust.
Preferably, also including baffle ring, the baffle ring includes fixed part and stop part, and the fixed position is in the footpath of baffle ring
Laterally, the stop part is located at the radially inner side of baffle ring, be fixed with it is spacing.
Preferably, the baffle ring is fixed on the valve seat of fixed ball valve by fixed part, the stop part is close to solid
Determine the end face of ball seat to be bonded with the 3rd surface of valve seat insert, cooperation is fixed.
The utility model has the technical effect that following aspect：Sealing is reduced using triangle valve seat insert to connect
Contacting surface is accumulated, and so as to reduce pretightning force, and moment of torsion needed for spinning ball, reduces the quantity of spring；The use of bracing ring enters one
Step reduces moment of torsion needed for spinning ball, while valve seat insert is shielded, and makes sealing more reliable, using spring knot
Structure, push valve seat to spheroid, ensure that good inlet-outlet bidirectional sealing property, valve rod effectively contacts with valve body, makes anti-quiet
Electrical grounding assembly superior performance.
Brief description of the drawings
Fig. 1 is a kind of overall structure figure of Bidirectioning sealed fixing ball valve of the present utility model；
Fig. 2 is a kind of A portions enlarged drawing of Bidirectioning sealed fixing ball valve of the present utility model；
Fig. 3 is a kind of valve seat insert structure chart of Bidirectioning sealed fixing ball valve of the present utility model.
Embodiment
As Figure 1-3, a kind of Bidirectioning sealed fixing ball valve, including fixing ball valve body 1, the fixing ball valve body
1 includes valve body 2, bonnet 3, spheroid 4, valve rod 5 and handwheel 6, and the bonnet 3 is fixed on valve body 2 by the bolt 7 of setting, institute
State by the connection of stem guiding set 8 of setting between valve rod 5 and valve body 2, the spheroid 4 is placed in valve body 2 and spheroid 4 and valve
Valve seat of fixed ball valve 9 is provided between body 2, the valve seat of fixed ball valve 9 includes valve seat body 10, bracing ring 11 and valve seat insert
12, the valve seat insert 12 includes first surface 13, the surface 15 of second surface 14 and the 3rd, and first surface 13 is located at inner side,
Second surface 14 is located at lower section, and the 3rd surface 15 is located at outside, and the angle on the surface 15 of second surface 14 and the 3rd is 80-
110 degree, the side that the second surface 14 intersects with the 3rd surface 15 is sealing, and the sealing forms arc-shaped edges, also can root
Adjusted according to situation, in addition to baffle ring 16, the baffle ring 16 include fixed part 17 and stop part 18, the fixed part 17 is located at baffle ring
16 radial outside, the stop part 18 are located at the radially inner side of baffle ring 16, be fixed with it is spacing, the baffle ring 16 passes through solid
Portion 17 is determined fixed on the valve seat of fixed ball valve 9, and the stop part 18 is close to the end face of valve seat of fixed ball valve 9 and valve base sealing
3rd surface 15 of circle 12 is bonded, and cooperation is fixed, and it is close that the valve seat body 10 with one end that spheroid 4 contacts is provided with first
The seal groove 20 of sealing groove 19 and second, the cross sectional shape of the seal groove 20 of the first seal groove 19 and second respectively with bracing ring 11 and
The cross sectional shape of valve seat insert 12 is identical, and the bracing ring 11 and valve seat insert 12 are embedded in first seal groove 19 respectively
In the second seal groove 20, the section outline of the valve seat insert 12 is triangle.
Principle explanation：
Sealed between valve seat of fixed ball valve 9 and spheroid 4 using valve seat insert 12, because valve seat insert 12 is close
Envelope portion is the side that second surface 14 intersects with the 3rd surface 15, reduces area in sealing contact, constant in working condition pressure
In the case of pressure between valve seat of fixed ball valve 9 and spheroid 4 reduce, required pretightning force reduces, meanwhile, bracing ring 11 is born pair
The primary force of spheroid 4, and because the hardness of bracing ring 11 is more than the hardness of valve seat insert 12, and frictional resistance is small, makes branch
Frictional force between support ring 11 and spheroid 4 reduces, and further reduces moment of torsion needed for spinning ball 4, and bracing ring 11 is close in valve seat
Seal 12 can also seal after damaging, and further increase the reliability of sealing.
The utility model has the technical effect that following aspect：Sealing is reduced using triangle valve seat insert to connect
Contacting surface is accumulated, and so as to reduce pretightning force, and moment of torsion needed for spinning ball, reduces the quantity of spring；The use of bracing ring enters one
Step reduces moment of torsion needed for spinning ball, while valve seat insert is shielded, and makes sealing more reliable, using spring knot
Structure, push valve seat to spheroid, ensure that good inlet-outlet bidirectional sealing property, valve rod effectively contacts with valve body, makes anti-quiet
Electrical grounding assembly superior performance.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any change or replacement expected without creative work, should all cover within the scope of protection of the utility model.
Claims (5)
1. a kind of Bidirectioning sealed fixing ball valve, including fixing ball valve body, the fixing ball valve body include valve body, bonnet,
Spheroid, valve rod and handwheel, it is characterised in that：The bonnet is bolted on valve body by setting, the valve rod and valve body
Between connection covered by the stem guiding of setting, the spheroid is placed in valve body and fixing ball valve is provided between spheroid and valve body
Valve seat, the valve seat of fixed ball valve include valve seat body, bracing ring and valve seat insert, what the valve seat body contacted with spheroid
One end is provided with the first seal groove and the second seal groove, the cross sectional shape of first seal groove and the second seal groove respectively with branch
Support ring is identical with the cross sectional shape of valve seat insert, the bracing ring and valve seat insert respectively embedded in first seal groove and
In second seal groove, the section outline of the valve seat insert is triangle.
2. Bidirectioning sealed fixing ball valve according to claim 1, it is characterised in that：The valve seat insert includes first
Surface, second surface and the 3rd surface.
3. Bidirectioning sealed fixing ball valve according to claim 2, it is characterised in that：The second surface and the 3rd surface
Angle be 80-110 degree, the side that the second surface intersects with the 3rd surface is sealing, and the sealing forms arc-shaped edges.
4. Bidirectioning sealed fixing ball valve according to claim 3, it is characterised in that：Also include baffle ring, the baffle ring bag
Fixed part and stop part are included, the fixed position is located at the radially inner side of baffle ring in the radial outside of baffle ring, the stop part.
5. Bidirectioning sealed fixing ball valve according to claim 4, it is characterised in that：The baffle ring is fixed by fixed part
Onto the valve seat of fixed ball valve, the stop part pastes close to the end face of valve seat of fixed ball valve and the 3rd surface of valve seat insert
Close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720759235.8U CN206904284U (en) | 2017-06-27 | 2017-06-27 | A kind of Bidirectioning sealed fixing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720759235.8U CN206904284U (en) | 2017-06-27 | 2017-06-27 | A kind of Bidirectioning sealed fixing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206904284U true CN206904284U (en) | 2018-01-19 |
Family
ID=61284402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720759235.8U Expired - Fee Related CN206904284U (en) | 2017-06-27 | 2017-06-27 | A kind of Bidirectioning sealed fixing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206904284U (en) |
-
2017
- 2017-06-27 CN CN201720759235.8U patent/CN206904284U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |