CN204226692U - The desulphurization denitration knife gate valve of rubber seal - Google Patents
The desulphurization denitration knife gate valve of rubber seal Download PDFInfo
- Publication number
- CN204226692U CN204226692U CN201420661377.7U CN201420661377U CN204226692U CN 204226692 U CN204226692 U CN 204226692U CN 201420661377 U CN201420661377 U CN 201420661377U CN 204226692 U CN204226692 U CN 204226692U
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- China
- Prior art keywords
- valve body
- knife gate
- gate valve
- sealing gasket
- shaped sealing
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- Withdrawn - After Issue
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Abstract
A desulphurization denitration knife gate valve for rubber seal, comprises flashboard, and the valve body of this knife gate valve is divided into left and right valve body, arranges seal arrangement between this left and right valve body; Sealing device comprises the U-shaped sealing gasket of the band shirt rim be placed between described left and right valve body, the oral area of the U-shaped sealing gasket of this band shirt rim has inside projection, this projection and the nested drive fit of transverse sealing bar being placed in the U-shaped sealing gasket oral area being with shirt rim, simultaneously, be provided with push rod in the valve body both sides of knife gate valve, the front end of this push rod is by the contact aside of the U-shaped sealing gasket of after stuffing box gland and described band shirt rim.The utility model passes through valve body structure, U-shaped sealing gasket, the reformed AHP of middle mouth Stamping Steel Ribbon seal form, thoroughly overcomes in existing knife gate valve the defect of leaking and leaking outside.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, contains the knife gate valve of the application of installation of the solid particles such as various powder, particle, slurries, waste residue when relating to petrochemical industry and thermoelectricity field flue gas desulfurization and denitrification.
Background technique
When petrochemical industry and thermoelectricity field flue gas desulfurization and denitrification, on the pipeline containing powder, ore pulp, slurries, waste residue, particle such as mine metallurgy, sewage treatment, papermaking, knife gate valve device is widely applied to control screenings, ore pulp and carry.At present, common knife gate valve shortcoming: 1. common without valve gap cutter valve, is only used in the operating mode such as conveying solid material and water coal slurry, mud and paper pulp, ubiquity not only in leakage but also leak outside, cannot ensure that medium does not leak.
2. the area of contact of the filler of long annular is large, cannot be even during tight bolt, and medium leaks outside.
Model utility content
The utility model provides a kind of desulphurization denitration knife gate valve of rubber seal, and its major advantage is the interior leakage and the problem of leakage that overcome existing knife gate valve.
For achieving the above object, the technological scheme of employing is:
A desulphurization denitration knife gate valve for rubber seal, comprises flashboard, and the valve body of this knife gate valve is divided into left and right valve body, arranges seal arrangement between this left and right valve body; Sealing device comprises the U-shaped sealing gasket of the band shirt rim be placed between described left and right valve body, the oral area of the U-shaped sealing gasket of this band shirt rim has inside projection, this projection and the nested drive fit of transverse sealing bar being placed in the U-shaped sealing gasket oral area being with shirt rim, simultaneously, be provided with push rod in the valve body both sides of knife gate valve, the front end of this push rod is by the contact aside of the U-shaped sealing gasket of after stuffing box gland and described band shirt rim.
Described projection has spherical part.
Install push jack in the translot of described left and right valve body upper-end surface, adjusting screw one end contacts with described push jack.
Conical surface seal is passed through between described push rod and stuffing box gland.
The U-shaped sealing gasket of described band shirt rim by being located at a left side or/and to be connected the bolt-through of left and right valve body behind locating stud location on right valve barrel fastening.
Described flashboard top is also provided with packing seal structure, and the filler in this packing seal structure has groove structure.
Described left and right valve body is provided with slurry scraper mechanism, and this scraper mechanism is made up of scraper and Ο type circle; Described scraper and rams contact, and Ο type circle compresses scraper.
Described left and right valve body lower portion is equipped with blow valve port.
The utility model passes through valve body structure, U-shaped sealing gasket, the reformed AHP of middle mouth Stamping Steel Ribbon seal form, thoroughly overcomes in existing knife gate valve the defect of leaking and leaking outside.
Accompanying drawing explanation
Fig. 1 a is overall structure schematic diagram of the present utility model;
Fig. 1 b is the side view of Fig. 1 a;
Fig. 2 is the U-shaped sealing gasket signal of the utility model band shirt rim;
Fig. 3 is structural representation of the present utility model;
Fig. 4 is the scheme of installation of the utility model scraper;
Fig. 5 is the utility model packing seal structure schematic detail view;
Fig. 6 is the utility model push jack and transverse sealing bar position schematic detail view;
In figure: 1. filler 7. Gland of left valve barrel 2. right valve barrel 3. flashboard 4. scraper 5. Ο type circle 6. with groove
8. protruding 17. push rod 18. conical surface 19. stuffing box gland 20. push jack 21. locating stud 22. adjusting screw 23. blow valve ports of the U-shaped sealing gasket 16. of Stem Mut 9. valve rod 10. pillar 11. support 12. valve spindle gland 13. locker 14. transverse sealing bar 15. with shirt rim.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model and effect thereof are described in detail.
With reference to Fig. 1 a, 1b, 2,3, a kind of desulphurization denitration knife gate valve of rubber seal, comprises flashboard, and the valve body of this knife gate valve is divided into left and right valve body 1,2, carries out cast inblock respectively, is convenient to precision machining on numerical control machining center; And the weight of valve can be alleviated.
Between this left and right valve body 1,2, seal arrangement is set; Sealing device comprises the U-shaped sealing gasket 15 of the band shirt rim be placed between described left and right valve body 1,2, the meaning of so-called shirt rim is exactly that the outward edge of U-shaped sealing gasket extends to the outward edge of knife gate valve and it matches, and inward flange is embedded in the groove of valve body, the U-shaped sealing gasket 15 of this band shirt rim adopts the manufacture of Viton rubber material, and by being located at a left side or/and right valve barrel 1 is or/and locating stud 21 on 2 bolt-through that is connected left and right valve body after locating is fastening.Ensure that the U-shaped sealing gasket 15 of band shirt rim will because of deadweight and stressed and produce displacement, thus make flashboard tightly be wrapped up by it, the requirement of the two-way reliable sealing of guarantee knife gate valve.Meanwhile, be provided with push rod 17 in the valve body both sides of knife gate valve, the front end of this push rod 17 is by the contact aside of the U-shaped sealing gasket 15 of after stuffing box gland 19 and described band shirt rim.And sealed by the conical surface 18 between push rod 17 and stuffing box gland 19.The effect of push rod 17 is sides of the U-shaped sealing gasket 15 of push belt shirt rim, makes its side closely be wrapped in flashboard, reaches the excellent sealing of its side and flashboard side.
The oral area of the U-shaped sealing gasket 15 of this band shirt rim has inside projection 16, this projection 16 has spherical part and this spherical part and the nested interference fit of transverse sealing bar 14 being placed in U-shaped sealing gasket 15 oral area being with shirt rim, adds that fluorine rubber reaches the reliable sealing of knife gate valve end face in the extrusion-deformation of flashboard.The U-shaped sealing gasket 15 of this band shirt rim and transverse sealing bar 14 select the main cause of rubber seal be the direct sulfuration in rubber seal face in valve body, can not come off.
With reference to Fig. 6, install push jack 20 in the translot of described left and right valve body 1,2 upper-end surface, adjusting screw 22 one end contacts with described push jack 20.Under adjusting screw 22 promotes, make the height of the promotion transverse sealing bar 14 of push jack 20 equilibrium, reach transverse sealing bar 14 and flashboard 3 end face better seals.
Described flashboard 3 top is also provided with packing seal structure 6, and the filler in this packing seal structure 6 has groove structure.With reference to Fig. 5, flashboard 3 is except straight Stamping Steel Ribbon primary seal, also be provided with filler auxiliary sealing structure, in order to reduce the frictional force of filler auxiliary sealing structure to flashboard, stuffing box packing medium design groove, this groove had both decreased the frictional force of filler, compresses filler again form secondary seal to flashboard by extrusion-deformation at hold-down grid.
With reference to Fig. 4, described left and right valve body 1,2 is provided with slurry scraper mechanism, and this scraper mechanism is made up of scraper 4 and Ο type circle 5; Described scraper 4 contacts with flashboard 3, and Ο type circle 5 compresses scraper 4.To the pretightening force that scraper mechanism is certain during assembling, scraper 4, by the compressive strain of Ο type circle 5, stores certain elasticity energy, scraper 4 can be made to be close to flashboard 3 long-term effectively, strike off the slurry on flashboard 3 surface, slurry is stayed in valve body, effectively prevent slurry from entering valve body filler.
With reference to Fig. 1 a, described left and right valve body 1,2 bottom is equipped with blow valve port 23.Can water be passed into from blow valve port or slurry is washed from sealing surface from accumulation by steam, ensure that valve has excellent sealing function.
Left and right valve body of the present utility model is also provided with knife plate guide surface, guarantee like this valve no matter vertical or level install and can carry out whole process guiding and support to flashboard, the accurate location sealing of guarantee valve.And flashboard is designed to be with blade type, can insert in slurry during closedown, blade can outside discharge, and can impurity in automatically cleaning valve base surface and cut-out fluid.Impurity can be pushed close to square knife plate and rinse angle, be taken away by fluid.
Claims (8)
1. a desulphurization denitration knife gate valve for rubber seal, comprises flashboard, it is characterized in that: the valve body of this knife gate valve is divided into left and right valve body (1,2), and this left and right valve body arranges seal arrangement between (1,2); Sealing device comprises the U-shaped sealing gasket (15) of the band shirt rim be placed between described left and right valve body (1,2), the oral area of the U-shaped sealing gasket (15) of this band shirt rim has inside projection (16), this projection (16) and transverse sealing bar (14) the nested drive fit being placed in U-shaped sealing gasket (15) oral area being with shirt rim, simultaneously, be provided with push rod (17) in the valve body both sides of knife gate valve, the front end of this push rod (17) by stuffing box gland (19) afterwards with the contact aside of the U-shaped sealing gasket (15) of described band shirt rim.
2. the desulphurization denitration knife gate valve of a kind of rubber seal according to claim 1, is characterized in that: described projection (16) has spherical part.
3. the desulphurization denitration knife gate valve of a kind of rubber seal according to claim 1, is characterized in that: install push jack (20) in the translot of described left and right valve body (1,2) upper-end surface, adjusting screw (22) one end contacts with described push jack (20).
4. the desulphurization denitration knife gate valve of a kind of rubber seal according to claim 1, is characterized in that: by the conical surface (18) sealing between described push rod (17) and stuffing box gland (19).
5. the desulphurization denitration knife gate valve of a kind of rubber seal according to claim 1, is characterized in that: the U-shaped sealing gasket (15) of described band shirt rim by being located at left valve barrel (1) or/and to be connected the bolt-through of left and right valve body behind locating stud (21) location on right valve barrel (2) fastening.
6. the desulphurization denitration knife gate valve of a kind of rubber seal according to claim 1, is characterized in that: described flashboard (3) top is also provided with packing seal structure (6), and the filler in this packing seal structure (6) has groove structure.
7. the desulphurization denitration knife gate valve of a kind of rubber seal according to claim 1, is characterized in that: (1,2) are provided with slurry scraper mechanism to described left and right valve body, and this scraper mechanism is made up of scraper (4) and Ο type circle (5); Described scraper (4) contacts with flashboard (3), and Ο type circle (5) compresses scraper (4).
8. the desulphurization denitration knife gate valve of a kind of rubber seal according to claim 1, is characterized in that: described left and right valve body (1,2) bottom is equipped with blow valve port (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661377.7U CN204226692U (en) | 2014-11-07 | 2014-11-07 | The desulphurization denitration knife gate valve of rubber seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661377.7U CN204226692U (en) | 2014-11-07 | 2014-11-07 | The desulphurization denitration knife gate valve of rubber seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226692U true CN204226692U (en) | 2015-03-25 |
Family
ID=52924791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420661377.7U Withdrawn - After Issue CN204226692U (en) | 2014-11-07 | 2014-11-07 | The desulphurization denitration knife gate valve of rubber seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226692U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373614A (en) * | 2014-11-07 | 2015-02-25 | 兰州高压阀门有限公司 | Desulfurization and denitrification sluice valve sealed through rubber |
| CN114623251A (en) * | 2022-02-24 | 2022-06-14 | 洛阳涧光特种装备股份有限公司 | Double-rod single-gate plate cracking air valve |
-
2014
- 2014-11-07 CN CN201420661377.7U patent/CN204226692U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373614A (en) * | 2014-11-07 | 2015-02-25 | 兰州高压阀门有限公司 | Desulfurization and denitrification sluice valve sealed through rubber |
| CN114623251A (en) * | 2022-02-24 | 2022-06-14 | 洛阳涧光特种装备股份有限公司 | Double-rod single-gate plate cracking air valve |
| CN114623251B (en) * | 2022-02-24 | 2024-04-16 | 洛阳涧光特种装备股份有限公司 | Double-rod single-flashboard cracking gas valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150325 Effective date of abandoning: 20171114 |