CN201963916U - Polyurethane-lined wear-resistant knife gate valve - Google Patents
Polyurethane-lined wear-resistant knife gate valve Download PDFInfo
- Publication number
- CN201963916U CN201963916U CN2011200588706U CN201120058870U CN201963916U CN 201963916 U CN201963916 U CN 201963916U CN 2011200588706 U CN2011200588706 U CN 2011200588706U CN 201120058870 U CN201120058870 U CN 201120058870U CN 201963916 U CN201963916 U CN 201963916U
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- CN
- China
- Prior art keywords
- polyurethane
- valve body
- flashboard
- gate valve
- valve
- 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 relates to a polyurethane-lined wear-resistant knife gate valve, which comprises a valve body, a shutter, a valve rod, a support, a hand wheel, a sealing part and an installation part, wherein the edge at the lower part of the shutter is manufactured into a semicircular knife-shaped inclined surface; and the polyurethane-lined wear-resistant knife gate valve is mainly characterized in that a polyurethane inner sleeve is lined on the inner wall of a passage of the valve body and between the upper part of the valve body and the shutter, wherein a sealing inclined surface mutually matched with the knife-shaped inclined surface of the shutter is manufactured on the inner wall of a passage of the polyurethane inner sleeve and positioned on the inlet side of the passage of the valve body. The polyurethane-lined wear-resistant knife gate valve has the characteristics of wear resistance, corrosion resistance, good sealing performance and the like; and the polyurethane-lined wear-resistant knife gate valve is suitable for a pipeline with fibrous media and abrasive media.
Description
Technical field
The utility model relates to valve field, particularly about a kind of knife-shape gate valve.
Background technique
Knife-shape gate valve is made up of valve body, flashboard, valve seat, valve rod, support, handwheel, and the flashboard lower edge is made semicircular knife-edge inclined-plane, and cut staple medium in closing closed procedure is realized flashboard and valve seat fitted seal.Its shortcoming is that flashboard is that metal cooperates corrosion resistant performance and poor sealing performance.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at prior art, and the lining resistant polyurethane sharpening shape gate valve of a kind of corrosion resistant performance and good seal performance is provided.
The technical solution of the utility model comprises valve body, flashboard, valve rod, support, handwheel, Sealing and assembling set, the flashboard lower edge is made semicircular knife-edge inclined-plane, mainly be to overlap in the lining polyurethane between valve channel inwall and valve body top and the flashboard, the vias inner walls of cover is shaped on the sealing inclined-plane that cooperatively interacts with flashboard knife-edge inclined-plane in the described polyurethane, and the sealing inclined-plane is positioned at the valve channel suction side.
The utility model has the advantages that to be provided with in the valve body in the polyurethane that cooperatively interacts with flashboard knife-edge inclined-plane and overlap that the rigidity of metal flashboard and the antiwear characteristic of polyurethane material cooperatively interact, make gate valve have characteristics such as wear-resisting, corrosion resistant, good seal performance.
Description of drawings
Fig. 1 is a structure cut-away view of the present utility model.
Embodiment
Lining resistant polyurethane sharpening shape gate valve as shown in Figure 1, comprise valve body 1, flashboard 3, valve rod 6, support 7, handwheel 8, Sealing and assembling set, flashboard 3 lower edge are made the knife-edge inclined-plane, cover 2 in the lining polyurethane between valve body 1 vias inner walls and valve body 1 top and the flashboard 3, the vias inner walls of cover 2 is shaped on the sealing inclined-plane that cooperatively interacts with flashboard 3 knife-edge inclined-planes in the described polyurethane, the sealing inclined-plane is positioned at valve body 1 channel entrance side, i.e. valve body 1 channel entrance side under flashboard 3 closed conditions.Close at flashboard 3 velocity of medium is accelerated, and the knife-edge inclined-plane of flashboard 3 changes MEDIA FLOW overlap 2 in flushing polyurethane, both reliable sealings are cooperated.Be provided with stuffing box packing 4 between the valve body 1 of cover 2 upper ends and the flashboard 3 in polyurethane, sealing filler 4 is press-fited by Gland 5.
Claims (1)
1. one kind serves as a contrast resistant polyurethane sharpening shape gate valve, comprise valve body (1), flashboard (3), valve rod (6), support (7), handwheel (8), Sealing and assembling set, flashboard (3) lower edge is made the knife-edge inclined-plane, it is characterized in that overlapping (2) in the lining polyurethane between valve body (1) vias inner walls and valve body (1) top and the flashboard (3), the vias inner walls of cover (2) is shaped on the sealing inclined-plane that cooperatively interacts with flashboard (3) knife-edge inclined-plane in the described polyurethane, and the sealing inclined-plane is positioned at valve body (1) channel entrance side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200588706U CN201963916U (en) | 2011-02-28 | 2011-02-28 | Polyurethane-lined wear-resistant knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200588706U CN201963916U (en) | 2011-02-28 | 2011-02-28 | Polyurethane-lined wear-resistant knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963916U true CN201963916U (en) | 2011-09-07 |
Family
ID=44526452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200588706U Expired - Fee Related CN201963916U (en) | 2011-02-28 | 2011-02-28 | Polyurethane-lined wear-resistant knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963916U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133709A (en) * | 2013-02-26 | 2013-06-05 | 西安交通大学 | Hard sealed flapper door in slide of wedge-shaped groove |
| CN108980390A (en) * | 2018-09-26 | 2018-12-11 | 天津包博特密封科技有限公司 | A kind of polyurethane flashboard wear-resistant seal sliding block |
| CN109210218A (en) * | 2018-09-19 | 2019-01-15 | 姜日静 | A kind of manufacturing process of knife gate valve and valve body inner piece |
| CN112392975A (en) * | 2020-10-16 | 2021-02-23 | 温州奇胜阀门制造有限公司 | Bidirectional sealing wear-resistant lining polyurethane knife gate valve and processing technology thereof |
-
2011
- 2011-02-28 CN CN2011200588706U patent/CN201963916U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133709A (en) * | 2013-02-26 | 2013-06-05 | 西安交通大学 | Hard sealed flapper door in slide of wedge-shaped groove |
| CN103133709B (en) * | 2013-02-26 | 2015-05-27 | 西安交通大学 | Hard sealed flapper door in slide of wedge-shaped groove |
| CN109210218A (en) * | 2018-09-19 | 2019-01-15 | 姜日静 | A kind of manufacturing process of knife gate valve and valve body inner piece |
| CN108980390A (en) * | 2018-09-26 | 2018-12-11 | 天津包博特密封科技有限公司 | A kind of polyurethane flashboard wear-resistant seal sliding block |
| CN112392975A (en) * | 2020-10-16 | 2021-02-23 | 温州奇胜阀门制造有限公司 | Bidirectional sealing wear-resistant lining polyurethane knife gate valve and processing technology thereof |
| CN112392975B (en) * | 2020-10-16 | 2022-08-23 | 奇胜阀门有限公司 | Machining process of bidirectional-sealing wear-resistant lining polyurethane knife gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20190228 |