CN206145160U - Plate valve valve seat seal structure - Google Patents
Plate valve valve seat seal structure Download PDFInfo
- Publication number
- CN206145160U CN206145160U CN201621191328.7U CN201621191328U CN206145160U CN 206145160 U CN206145160 U CN 206145160U CN 201621191328 U CN201621191328 U CN 201621191328U CN 206145160 U CN206145160 U CN 206145160U
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- valve
- valve seat
- valve body
- seat
- fitting recess
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Abstract
The utility model discloses a plate valve valve seat seal structure, which comprises a valve body and a valve seat, the tip of disk seat inlays the assembly inslot of putting into on the valve body, the terminal surface of disk seat and periphery wall respectively and form the cooperation structure of face contact between the assembly groove of valve body, be equipped with the radial seal circle between the terminal surface of disk seat and the assembly groove of valve body, be equipped with the axial seal circle between the periphery wall of disk seat and the assembly groove of valve body. The utility model discloses an axial seal circle forms additionally to the sealed effect of radial sealing washer to avoid because of the seal failure that the relapse pressurized at disk seat axial both ends made terminal surface radial seal circle bring because of elasticity weakens, ensure to realize stably, reliable sealed long -termly.
Description
Technical field
The utility model is related to flat gate valve, specifically a kind of valve base sealing structure of flat gate valve.
Background technology
Flat gate valve is the slide-valve that a kind of closure member is parallel gate plate, and it has been obtained extensively on oil, letter shoot line
Using.Shown in Figure 1, common flat gate valve is mainly by groups such as valve body 1, valve gap 6, flashboard 3, valve seat 4, valve rod 5 and handwheels 7
Into, arrangement cooperates in valve pocket, valve pocket valve seat 4, backplate 2 and flashboard 3 are constituted between valve body 1 and valve gap 6, valve seat 4 is sealed
It is assemblied on valve body 1, the upper end of valve rod 5 connection handwheel 7, lower end connects valve pocket by bearing assembly and black box through valve gap 6
Interior flashboard 3.
In the structure of flat gate valve, sealing assembly performance of the valve seat on valve body can directly affect flat gate valve and integrally transport
Capable stability and reliability.In existing published technology, the sealing structure of flat gate valve valve seat is mainly, by valve
Concentric-ring pattern arranges inside and outside sealing ring and realizes between fitting recess on the end end face and valve body of seat, such as Chinese patent literature
Disclosed " double containment flap type "（Publication number：CN 202418672, publication date：On September 5th, 2012）, a kind of " flat board valve base
Sealing structure "（Publication number：CN 203035986, publication date：On July 3rd, 2013）, " a kind of flat board valve sealing means "（It is open
Number：CN 204083292, publication date：On January 7th, 2015）Deng.The valve base sealing structure of these existing flat gate valves is in a short time
Its sealing effectiveness is stable, reliable, but in longer military service, because valve seat axial direction two ends it is repeatedly pressurized make end face
Sealing ring always repeatedly bear pressure, the elastic force for gradually making sealing ring weakens, so destroy valve seat sealing structure, it is impossible to
Stable, reliable sealing is realized longer.
The content of the invention
Goal of the invention of the present utility model is：For above-mentioned the deficiencies in the prior art, there is provided one kind can be real longer
Now stably, the flat gate valve valve base sealing structure of reliable sealing effectiveness.
The technical scheme that the utility model is adopted is：A kind of flat gate valve valve base sealing structure, including valve body and valve
Seat, in the fitting recess on the end setting-in inlet valve body of the valve seat, the end face and periphery wall of valve seat respectively with the fitting recess of valve body
Between formed face contact fit structure, radial direction seal ring is provided between the end face of the valve seat and the fitting recess of valve body, it is described
Axial sealing ring is provided between the periphery wall of valve seat and the fitting recess of valve body.
Preferably, the radial direction seal ring and/or axial sealing ring are spring energy-storage sealing ring.Further,
The spring energy-storage sealing ring is mainly made up of the corrosion resisting alloy spring of outside abrasion sealer and inside.
Preferably, there is the positioning step of relative valve body fitting recess notch on the periphery wall of the valve seat, it is described
Elastic anti-push piece is provided between the fitting recess notch and the positioning step of valve seat of valve body.Further, the elastic anti-push piece is
Disk spring.
Preferably, the valve base sealing structure is arranged in the forward end of valve seat and the rear end end of valve seat.
The beneficial effects of the utility model are：
1. axial sealing ring of the present utility model forms supplement to the sealing effectiveness of radial direction seal ring, so as to avoid because of valve
The axial two ends of seat repeatedly pressurized and the seal failure that makes end face radial direction seal ring bring because of elastic force decrease, it is ensured that real longer
Now stable, reliable sealing；
2. elastic anti-push piece of the present utility model can effectively increase the pressure between valve seat and flashboard, so as to effective
Ground mitigates the valve seat axial compressive force that radial direction seal ring is born, and further ensures that and realize longer stable, reliable sealing；
3. elastic anti-push piece of the present utility model can effectively increase the pressure between valve seat and flashboard, so as to reliability
Make valve be formed before the excellent valve seat of sealing to seal after sealing and valve seat, once seal failure before valve seat, seals one after valve seat
Sample can well ensure the sealing effectiveness of valve, so can further ensure that again and realize stable, reliable sealing longer.
Description of the drawings
The utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of flat gate valve.
Fig. 2 is a kind of structural representation of the present utility model.
Fig. 3 is the mplifying structure schematic diagram sealed after local-valve seat in Fig. 2.
Code name implication in figure：1-valve body；2-backplate；3-flashboard；4-valve seat；5-valve rod；6-valve gap；7-handwheel；
8-radial direction seal ring；9-axial sealing ring；10-elastic anti-push piece.
Specific embodiment
The utility model for flat gate valve valve base sealing structure, it is shown in Figure 1, the flat gate valve mainly by valve body 1,
Valve gap 6, flashboard 3, valve seat 4, valve rod 5 and handwheel 7 etc. are constituted.Wherein, the axial direction of valve body 1 is provided with centre bore, is radially provided with
Runner hole, the centre bore of valve body 1 and runner hole communicate；Valve gap 6 is sealedly connected on the top of valve body 1 by stud, in valve
The perforation communicated with the centre bore of valve body 1 is axially arranged with lid 6, the upper end of valve gap 6 is connected with bearing assembly, valve gap 6 and valve body 1
Between constitute valve pocket；Radially be provided with the flashboard perforation, axial direction of valve seat 4 is provided with runner hole, the runner hole and flashboard on valve seat 4
Perforation is communicated, and valve seat 4 is assemblied in valve pocket, and the runner hole on valve seat 4 is corresponding with the runner hole matching on valve body 1, on valve seat 4
Flashboard perforation is corresponding with the centre bore on valve body 1, and in the valve pocket of the bottom of valve seat 4 backplate 2 is provided with；Flashboard 3 is radially provided with runner
Hole, the runner hole on flashboard 3 should match with the runner hole on runner hole and valve body 1 on valve seat 4 it is corresponding, flashboard 3 it is upper
Portion is connected with valve rod 5, and flashboard 3 is used as to be slided in the flashboard perforation of valve seat 4；Valve rod 5 by valve rod sealing assembly axially across
Perforation on valve gap 6, and extend from the top of valve gap 6, it is connected with handwheel 7.
Sealing structure of the above-mentioned valve seat 4 on valve body 1 specifically, referring to the runner of valve body 1 shown in Fig. 2 and Fig. 3, at valve pocket
Valve seat fitting recess is offered on hole, the end of valve seat 4 has the ledge structure of fitting recess on matching valve body 1, and the end of valve seat 4 is embedding
Put in the fitting recess on valve body 1, the end face and periphery wall of valve seat 4 form respectively what face contacted between the fitting recess of valve body 1
Fit structure, the positioning step on the periphery wall of valve seat 4 with the relative fitting recess notch of valve body 1；The end face of valve seat 4 and valve body 1
Fitting recess bottom land between be provided with radial direction seal ring 8, the radial direction seal ring 8 is mainly arranged in the seal groove of the end face of valve seat 4,
Radial direction seal ring 8 is the U-shaped spring energy-storage sealing ring in the section of the radial direction of opposite valve seat 4, and it is mainly by the wear-resisting close of outside
Sealing（Teflon or senior engineering plastic）With the corrosion resisting alloy spring being coated on inside abrasion sealer（Section is U-shaped
Including the alloy including stainless steel, Elgiloy Hastelloy）Composition；The periphery wall of valve seat 4 and the fitting recess cell wall of valve body 1
Between be provided with axial sealing ring 9, the axial sealing ring 9 is mainly arranged in the seal groove of the periphery wall wall of valve seat 4, axially close
Seal 9 is the U-shaped spring energy-storage sealing ring in the axial section of opposite valve seat 4, and it is mainly by outside abrasion sealer（Iron
Fluorine dragon or senior engineering plastic）With the corrosion resisting alloy spring being coated on inside abrasion sealer（Section it is U-shaped including stainless
Steel, Elgiloy Hastelloy are in interior alloy）Composition；The fitting recess notch of valve body 1 and the positioning step of the periphery wall of valve seat 4
Between be provided with elastic anti-push piece 10, the preferred disk spring of elastic anti-push piece 10, it is of course also possible to use other elastic component generations
Replace.
Concrete sealing structure of the above-mentioned valve seat 4 on valve body 1 is not only arranged in the forward end of valve seat 4, is also arranged in valve
The rear end end of seat 4, i.e. the forward end of valve seat 4 and rear end end is respectively adopted the corresponding portion of above-mentioned sealing structure and valve body 1
Position sealing.
Above concrete technical scheme only to illustrate the utility model, rather than a limitation；Although with reference to above-mentioned concrete skill
Art scheme has been described in detail to the utility model, it will be understood by those within the art that：The utility model according to
So above-mentioned concrete technical scheme can be modified, or equivalent is carried out to which part technical characteristic, and these are repaiied
Change or replace, the essence for not making appropriate technical solution departs from spirit and scope of the present utility model.
Claims (6)
1. a kind of flat gate valve valve base sealing structure, including valve body（1）And valve seat（4）, it is characterised in that：The valve seat（4）'s
End is embedded in inlet valve body（1）On fitting recess in, valve seat（4）End face and periphery wall respectively with valve body（1）Fitting recess between
The fit structure of formation face contact, the valve seat（4）End face and valve body（1）Fitting recess between be provided with radial direction seal ring（8）,
The valve seat（4）Periphery wall and valve body（1）Fitting recess between be provided with axial sealing ring（9）.
2. flat gate valve valve base sealing structure according to claim 1, it is characterised in that：The radial direction seal ring（8）And/or
Axial sealing ring（9）For spring energy-storage sealing ring.
3. flat gate valve valve base sealing structure according to claim 2, it is characterised in that：The spring energy-storage sealing ring is main
It is made up of the corrosion resisting alloy spring of outside abrasion sealer and inside.
4. flat gate valve valve base sealing structure according to claim 1, it is characterised in that：The valve seat（4）Periphery wall on
With relative valve body（1）The positioning step of fitting recess notch, the valve body（1）Fitting recess notch and valve seat（4）Positioning table
Elastic anti-push piece is provided between rank（10）.
5. flat gate valve valve base sealing structure according to claim 4, it is characterised in that：The elastic anti-push piece（10）For dish
Shape spring.
6. the flat gate valve valve base sealing structure according to claim 1,2 or 4, it is characterised in that：The valve base sealing structure
It is arranged in valve seat（4）Forward end and valve seat（4）Rear end end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621191328.7U CN206145160U (en) | 2016-11-03 | 2016-11-03 | Plate valve valve seat seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621191328.7U CN206145160U (en) | 2016-11-03 | 2016-11-03 | Plate valve valve seat seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206145160U true CN206145160U (en) | 2017-05-03 |
Family
ID=58625095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621191328.7U Active CN206145160U (en) | 2016-11-03 | 2016-11-03 | Plate valve valve seat seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206145160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237061A (en) * | 2018-11-13 | 2019-01-18 | 江苏圣泰阀门有限公司 | A kind of nuclear-electric sluice valve and processing method |
-
2016
- 2016-11-03 CN CN201621191328.7U patent/CN206145160U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237061A (en) * | 2018-11-13 | 2019-01-18 | 江苏圣泰阀门有限公司 | A kind of nuclear-electric sluice valve and processing method |
| CN109237061B (en) * | 2018-11-13 | 2019-05-31 | 江苏圣泰阀门有限公司 | A kind of nuclear-electric sluice valve and processing method |
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