CN104373614A - Desulfurization and denitrification sluice valve sealed through rubber - Google Patents
Desulfurization and denitrification sluice valve sealed through rubber Download PDFInfo
- Publication number
- CN104373614A CN104373614A CN201410621956.3A CN201410621956A CN104373614A CN 104373614 A CN104373614 A CN 104373614A CN 201410621956 A CN201410621956 A CN 201410621956A CN 104373614 A CN104373614 A CN 104373614A
- Authority
- CN
- China
- Prior art keywords
- valve body
- knife gate
- gate valve
- sealing gasket
- shaped sealing
- 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.)
- Granted
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 18
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 4
- 230000023556 desulfurization Effects 0.000 title abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 239000000945 filler Substances 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 8
- 230000007547 defect Effects 0.000 abstract description 2
- 241000283216 Phocidae Species 0.000 description 10
- 239000002245 particle Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 ore pulp Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005619 thermoelectricity Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002449 FKM Polymers 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 241001529468 Phoca fasciata Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0227—Packings
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Abstract
A desulfurization and denitrification sluice valve sealed through rubber comprises a flash board. A valve body of the sluice valve comprises a main left valve body and a main right valve body, and a sealing device is arranged between the main left valve body and the main right valve body. The sealing device comprises a U-shaped sealing gasket which is located between the main left valve body and the main right valve body and provided with a skirt edge. An inward protrusion is arranged at the mouth of the U-shaped sealing gasket with the skirt edge. The protrusion is tightly matched with a transverse sealing strip of the mouth of the U-shaped sealing gasket with the skirt edge in an embedded mode. Meanwhile, push rods are arranged on the two sides of the valve body of the sluice valve, and after passing through a sealing sleeve, the front ends of the push rods make contact with the side edge of the U-shaped sealing gasket with the skirt edge. By means of the improvement and innovation on the sealing mode of a valve body structure, the U-shaped sealing gasket and the middle sealing strip, the defects of inward leakage and outward leakage of an existing sluice valve are thoroughly overcome.
Description
technical field
The invention belongs to technical field of valve manufacturing, when relating to petrochemical industry and thermoelectricity field flue gas desulfurization and denitrification, contain the knife gate valve of the application of installation of the solid particles such as various powder, particle, slurries, waste residue.
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.
summary of the invention
The invention provides a kind of desulphurization denitration knife gate valve of rubber seal, 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 present invention 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 invention;
Fig. 1 b is the side view of Fig. 1 a;
Fig. 2 is the U-shaped sealing gasket signal of band shirt rim of the present invention;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the scheme of installation of scraper of the present invention;
Fig. 5 is packing seal structure schematic detail view of the present invention;
Fig. 6 is push jack of the present invention 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 present invention and effect thereof are described in detail.
With reference to Fig. 1 a, 1b, 2,3, a kind of
rubber sealdesulphurization denitration knife gate valve, 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 invention 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 a left side or/and to be connected the bolt-through of left and right valve body behind locating stud (21) location on right valve barrel (1 or/and 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 |
|---|---|---|---|
| CN201410621956.3A CN104373614B (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 |
|---|---|---|---|
| CN201410621956.3A CN104373614B (en) | 2014-11-07 | 2014-11-07 | The desulphurization denitration knife gate valve of rubber seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373614A true CN104373614A (en) | 2015-02-25 |
| CN104373614B CN104373614B (en) | 2017-03-15 |
Family
ID=52552698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410621956.3A Active CN104373614B (en) | 2014-11-07 | 2014-11-07 | The desulphurization denitration knife gate valve of rubber seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373614B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112046U (en) * | 1992-01-06 | 1992-08-05 | 沈阳市和平聚氨酯胶厂 | Rubber-lined slurry valve |
| US5653423A (en) * | 1996-02-06 | 1997-08-05 | Technaflow, Inc. | Knife gate valve with mechanically retained gate seat |
| CN2594569Y (en) * | 2002-12-18 | 2003-12-24 | 江苏润源水务设备有限公司 | Knife-type flat gate valve with reliable sealing |
| KR101315998B1 (en) * | 2011-12-29 | 2013-10-18 | (주)현우산업 | Knife gate valve-knife of disc contact |
| CN203272829U (en) * | 2013-05-24 | 2013-11-06 | 盐城市大昌石化设备有限公司 | Slurry valve |
| CN204226692U (en) * | 2014-11-07 | 2015-03-25 | 兰州高压阀门有限公司 | The desulphurization denitration knife gate valve of rubber seal |
-
2014
- 2014-11-07 CN CN201410621956.3A patent/CN104373614B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112046U (en) * | 1992-01-06 | 1992-08-05 | 沈阳市和平聚氨酯胶厂 | Rubber-lined slurry valve |
| US5653423A (en) * | 1996-02-06 | 1997-08-05 | Technaflow, Inc. | Knife gate valve with mechanically retained gate seat |
| CN2594569Y (en) * | 2002-12-18 | 2003-12-24 | 江苏润源水务设备有限公司 | Knife-type flat gate valve with reliable sealing |
| KR101315998B1 (en) * | 2011-12-29 | 2013-10-18 | (주)현우산업 | Knife gate valve-knife of disc contact |
| CN203272829U (en) * | 2013-05-24 | 2013-11-06 | 盐城市大昌石化设备有限公司 | Slurry valve |
| CN204226692U (en) * | 2014-11-07 | 2015-03-25 | 兰州高压阀门有限公司 | The desulphurization denitration knife gate valve of rubber seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104373614B (en) | 2017-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Desulfurization and denitrification sluice valve sealed through rubber Effective date of registration: 20170714 Granted publication date: 20170315 Pledgee: Lanzhou rural commercial bank Limited by Share Ltd. Xigu branch Pledgor: LANZHOU HIGH PRESSURE VALVE Co.,Ltd. Registration number: 2017620000017 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220309 Granted publication date: 20170315 Pledgee: Lanzhou rural commercial bank Limited by Share Ltd. Xigu branch Pledgor: LANZHOU HIGH PRESSURE VALVE Co.,Ltd. Registration number: 2017620000017 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Rubber sealed desulfurization and denitration knife gate valve Effective date of registration: 20220315 Granted publication date: 20170315 Pledgee: China Construction Bank Corporation Lanzhou Xigu sub branch Pledgor: LANZHOU HIGH PRESSURE VALVE Co.,Ltd. Registration number: Y2022620000005 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20170315 Pledgee: China Construction Bank Corporation Lanzhou Xigu sub branch Pledgor: LANZHOU HIGH PRESSURE VALVE Co.,Ltd. Registration number: Y2022620000005 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Rubber sealed desulfurization and denitrification knife gate valve Granted publication date: 20170315 Pledgee: Lanzhou rural commercial bank Limited by Share Ltd. Xigu branch Pledgor: LANZHOU HIGH PRESSURE VALVE Co.,Ltd. Registration number: Y2024620000001 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |