CN108343756A - Dual-seal knife gate valve - Google Patents
Dual-seal knife gate valve Download PDFInfo
- Publication number
- CN108343756A CN108343756A CN201810316280.5A CN201810316280A CN108343756A CN 108343756 A CN108343756 A CN 108343756A CN 201810316280 A CN201810316280 A CN 201810316280A CN 108343756 A CN108343756 A CN 108343756A
- Authority
- CN
- China
- Prior art keywords
- flashboard
- valve seat
- seal
- gland
- rubber
- 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.)
- Pending
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000945 filler Substances 0.000 abstract description 4
- 239000002002 slurry Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000009923 sugaring 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
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
-
- 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
-
- 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
- F16K3/316—Guiding of the slide
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The present invention discloses a kind of dual-seal knife gate valve, including valve body, flashboard, rubber valve seat, gland, filler and gland, flashboard is set to the top of valve body, ontology seal receptacle is equipped between valve body and flashboard, rubber valve seat is arranged in the top of valve body, and by the way that the bottom of rubber valve seat to be designed with to the sealing ring of a crescent, and rubber valve seat is designed using segmented seal, rubber valve seat top 2/3rds forms flat seal with flashboard plane contact, simultaneously supports and guide flashboard；Rubber valve seat lower part one third combination flashboard bottom cambered design contacts to form radial seal with the bottom of flashboard, there are the dual-seals and combines foring 360 degree of circumference and being fully sealed in the gap that bottom un-grooved avoids product slurry impurity, one ontology seal receptacle of band realizes two way seal with valve plate sealing on valve body simultaneously, leakproofness and stability so are improved, convenient for industrial good use.
Description
Technical field
The present invention relates to knife gate valve technical fields, particularly relate to a kind of dual-seal knife gate valve.
Background technology
Knife gate valve is a kind of Direct Travel switch cutoff valve, is widely used in the industry such as papermaking, sewage disposal, mining, sugaring
In department.During knife gate valve use, traditional knife gate valve often occur valve bottom groove product slurry can not completely close it is close
Feng Buyan, while it being easy to happen valve plate guide support phenomena such as being not sufficiently stable and is reliable easy to wear, it is caused centainly to industrial production
Puzzlement.
Therefore, it is necessary to design a kind of new dual-seal knife gate valve, to solve the above technical problems.
Invention content
It is the problem of for background technology, dual close the object of the present invention is to provide a kind of dual-seal knife gate valve
The design that sealed knot closes improves leakproofness and stability.
The technical proposal of the invention is realized in this way：A kind of dual-seal knife gate valve, including valve body, flashboard, rubber valve
Seat, gland, packing area and gland, wherein the flashboard is set to the top of valve body, is set between the valve body and flashboard
There are ontology seal receptacle, the top of the valve body that rubber valve seat is set, the bottom of the rubber valve seat is integrally formed with a crescent
Sealing ring, and the rubber valve seat is designed using upper and lower segmented seal, the rubber valve seat top 2/3rds and the lock
Plate plane contact forms flat seal, simultaneously supports and guide flashboard, the rubber valve seat lower part one third combination flashboard bottom
Portion's cambered design contacts to form radial seal with the bottom of flashboard, and the gland is set to the outside and bottom side of rubber valve seat, described
Packing area is located at the side of flashboard epimere, top of the gland pressure set on packing area.
In the above-mentioned technical solutions, the gland is fixed on the top of packing area by the cooperation of nuts and bolt,
And it is equipped with gasket in the lower section of nut.
In the above-mentioned technical solutions, the gland is in integrally type, and the length in gland vertical direction is more than on horizontal direction
Length.
In the above-mentioned technical solutions, O-ring is equipped between the gland and the side of valve body, the thickness of the O-ring is big
In the thickness of gland.
Dual-seal knife gate valve of the present invention, including valve body, flashboard, rubber valve seat, gland, filler and gland, lock
Plate is set to the top of valve body, and ontology seal receptacle is equipped between valve body and flashboard, and rubber valve seat is arranged in the top of valve body, and existing
Technology is compared, and by the way that the bottom of rubber valve seat to be designed with to the sealing ring of a crescent, and rubber valve seat is using segmentation
Seal Design, rubber valve seat top 2/3rds form flat seal with flashboard plane contact, simultaneously support and guide flashboard；Rubber
Glue valve seat lower part one third combination flashboard bottom cambered design contacts to form radial seal with the bottom of flashboard, bottom un-grooved
There are the dual-seals and combines foring 360 degree of circumference and being fully sealed in the gap for avoiding product slurry impurity, while band one on valve body
A ontology seal receptacle realizes two way seal with valve plate sealing, so improves leakproofness and stability, convenient for industrially good
It uses.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the schematic cross-sectional view of Fig. 1；
Fig. 3 is partial structural diagram in Fig. 1；
Fig. 4 is rubber valve seat stereoscopic schematic diagram in Fig. 1；
Fig. 5 is flashboard structure schematic diagram in Fig. 1.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained without creative efforts
Example is applied, shall fall within the protection scope of the present invention.
As shown in Figures 1 to 5, a kind of dual-seal knife gate valve of the present invention, including valve body 1, flashboard 2, rubber valve
Seat 3, gland 4, packing area 5 and gland 6.
Wherein, the flashboard 2 is set to the top of valve body 1, and ontology seal receptacle 7 is equipped between the valve body 1 and flashboard 2,
Rubber valve seat 3 is arranged in the top of the valve body 1, and the bottom of the rubber valve seat 3 is integrally formed with the sealing ring of a crescent.
And the rubber valve seat 3 is designed using upper and lower segmented seal, 3 top 2/3rds of the rubber valve seat and the lock
2 plane contact of plate forms flat seal, simultaneously supports and guide flashboard 2,3 lower part one third combination flashboard of the rubber valve seat
2 bottom cambered designs contact to form radial seal with the bottom of flashboard 2.
The gland 4 is set to the outside and bottom side of rubber valve seat 3, and the one of the gland 4 is in type, in 4 vertical direction of gland
Length be more than horizontal direction on length.O-ring 8 is equipped between the gland 4 and the side of valve body 1, the O-ring 8
Thickness is more than the thickness of gland 4.
The packing area 5 is located at the side of 2 epimere of flashboard, top of the pressure of the gland 6 set on packing area 5.It is described
Gland 6 is fixed on the top of packing area 5 by the cooperation of nut 9 and bolt 10, and is equipped with gasket in the lower section of nut 9
11。
Dual-seal knife gate valve of the present invention, including valve body 1, flashboard 2, rubber valve seat 3, gland 4, filler 5 and filler pressure
Lid 6, flashboard 2 are set to the top of valve body 1, and ontology seal receptacle 7 is equipped between valve body 1 and flashboard 2, and rubber is arranged in the top of valve body 1
Glue valve seat 3, compared with prior art, by the way that the bottom of rubber valve seat 3 to be designed with to the sealing ring of a crescent, and rubber
Glue valve seat 3 is designed using segmented seal, and 3 top 2/3rds of rubber valve seat forms flat seal with 2 plane contact of flashboard, simultaneously
Support and guiding flashboard 3；3 lower part one third combination flashboard of rubber valve seat, 2 bottom cambered design and the bottom of flashboard 2 contact shape
It radially seals, the gap that bottom un-grooved avoids product slurry impurity occurs；Dual-seal, which combines, forms 360 degree of circumference completely
Sealing, while two way seal is realized in the sealing of one ontology seal receptacle 7 of band and valve plate 2 on valve body 1 so improves leakproofness and steady
It is qualitative, convenient for industrial good use.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (4)
1. a kind of dual-seal knife gate valve, it is characterised in that：Including valve body, flashboard, rubber valve seat, gland, packing area and fill out
Expect gland, wherein the flashboard is set to the top of valve body, and ontology seal receptacle, the valve are equipped between the valve body and flashboard
Rubber valve seat is arranged in the top of body, and the bottom of the rubber valve seat is integrally formed with the sealing ring of a crescent, and the rubber
Valve seat is designed using upper and lower segmented seal, and the rubber valve seat top 2/3rds and flashboard plane contact formation plane are close
Envelope, simultaneously supports and guides flashboard, the bottom of rubber valve seat lower part one third combination flashboard the bottom cambered design and flashboard
Portion contacts to form radial seal, and the gland is set to the outside and bottom side of rubber valve seat, and the packing area is located at flashboard epimere
Side, top of the gland pressure set on packing area.
2. dual-seal knife gate valve according to claim 1, it is characterised in that：The gland passes through nuts and bolt
Cooperation be fixed on the top of packing area, and be equipped with gasket in the lower section of nut.
3. dual-seal knife gate valve according to claim 1, it is characterised in that：The gland is in integrally type, and gland is vertical
Length on direction is more than the length on horizontal direction.
4. dual-seal knife gate valve according to claim 1, it is characterised in that：It is set between the gland and the side of valve body
There are O-ring, the thickness of the O-ring to be more than the thickness of gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316280.5A CN108343756A (en) | 2018-04-12 | 2018-04-12 | Dual-seal knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316280.5A CN108343756A (en) | 2018-04-12 | 2018-04-12 | Dual-seal knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108343756A true CN108343756A (en) | 2018-07-31 |
Family
ID=62958356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810316280.5A Pending CN108343756A (en) | 2018-04-12 | 2018-04-12 | Dual-seal knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343756A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458466A (en) * | 2018-11-28 | 2019-03-12 | 安徽铜都流体科技股份有限公司 | A kind of shield machine front end gate |
| CN110307354A (en) * | 2019-08-13 | 2019-10-08 | 北京中瑞麦通科技有限公司 | A kind of two-way knife gate valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809950A (en) * | 1987-05-26 | 1989-03-07 | Siegfried Schertler | Valve slide with slide housing |
| JP2001004041A (en) * | 1999-06-17 | 2001-01-09 | Asahi Organic Chem Ind Co Ltd | Soft seal type gate valve |
| CN1833131A (en) * | 2003-06-06 | 2006-09-13 | 丹福斯埃斯科股份有限公司 | Gate valve |
| CN106382379A (en) * | 2016-12-07 | 2017-02-08 | 上海核阀门制造有限公司 | Flat gate valve capable of achieving forced sealing |
| CN208074193U (en) * | 2018-04-12 | 2018-11-09 | 浙江锐步流体控制设备有限公司 | Dual-seal knife gate valve |
-
2018
- 2018-04-12 CN CN201810316280.5A patent/CN108343756A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809950A (en) * | 1987-05-26 | 1989-03-07 | Siegfried Schertler | Valve slide with slide housing |
| JP2001004041A (en) * | 1999-06-17 | 2001-01-09 | Asahi Organic Chem Ind Co Ltd | Soft seal type gate valve |
| CN1833131A (en) * | 2003-06-06 | 2006-09-13 | 丹福斯埃斯科股份有限公司 | Gate valve |
| CN106382379A (en) * | 2016-12-07 | 2017-02-08 | 上海核阀门制造有限公司 | Flat gate valve capable of achieving forced sealing |
| CN208074193U (en) * | 2018-04-12 | 2018-11-09 | 浙江锐步流体控制设备有限公司 | Dual-seal knife gate valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458466A (en) * | 2018-11-28 | 2019-03-12 | 安徽铜都流体科技股份有限公司 | A kind of shield machine front end gate |
| CN109458466B (en) * | 2018-11-28 | 2023-08-29 | 安徽铜都流体科技股份有限公司 | Front end gate for shield machine |
| CN110307354A (en) * | 2019-08-13 | 2019-10-08 | 北京中瑞麦通科技有限公司 | A kind of two-way knife gate valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |