CN204437318U - A kind of improved flat gate valve - Google Patents
A kind of improved flat gate valve Download PDFInfo
- Publication number
- CN204437318U CN204437318U CN201420854569.XU CN201420854569U CN204437318U CN 204437318 U CN204437318 U CN 204437318U CN 201420854569 U CN201420854569 U CN 201420854569U CN 204437318 U CN204437318 U CN 204437318U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- flat gate
- improved flat
- retaining ring
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims description 9
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 claims description 2
- 231100000719 pollutant Toxicity 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Sliding Valves (AREA)
Abstract
本实用新型涉及机械阀门技术领域，具体是一种改进型平板闸阀，阀体包括一阀体上部和阀体下部，阀体上部包括一过渡装置，过渡装置具有一线性缝隙，阀体下部中心具有圆孔，线性缝隙自阀体上部延伸至阀体下部圆孔处，在阀体下部内侧设有垫片，垫片具有一与线性缝隙位置相对应的槽，阀体两侧分别设有固定环，固定环具有一与垫片卡扣连接的连接部。本实用新型有效减少密封面相对运动产生的磨损，且本实用新型的多重固定结构设计巧妙，使密封性得到了卓越地提升。另外，本实用新型密封面上具有耐磨、耐腐蚀的硬质合金，抗压和磨损能力强，在使用过程中的密封性、安全性都得到了更好的保障。
The utility model relates to the technical field of mechanical valves, in particular to an improved flat gate valve. The valve body includes an upper part of the valve body and a lower part of the valve body. The upper part of the valve body includes a transition device. The transition device has a linear gap. Round hole, the linear gap extends from the upper part of the valve body to the round hole at the lower part of the valve body. There is a gasket on the inner side of the lower part of the valve body. The gasket has a groove corresponding to the position of the linear gap. There are fixed rings on both sides of the valve body. , the fixing ring has a connecting portion snap-fitted with the washer. The utility model effectively reduces the abrasion caused by the relative movement of the sealing surface, and the multiple fixing structures of the utility model are ingeniously designed, so that the sealing performance is remarkably improved. In addition, the sealing surface of the utility model has wear-resistant and corrosion-resistant cemented carbide, which has strong pressure and wear resistance, and the sealing performance and safety during use are better guaranteed.
Description
[technical field]
The utility model relates to machinery valve technical field, specifically a kind of improved flat gate valve.
[background technique]
The slide-valve of plate valve to be a kind of closure member be parallel gate plate.Its closure member can be Single disc or therebetween with the double-flashboard of spreading mechanism.Flashboard is controlled by the pressure medium of effect with floating flashboard or floating valve seat to the impacting force of valve seat.Plate valve can be divided into manual platform gate valve, Pneumatic flat-plate gate valve and driven plate gate valve by driving mode.Can be divided into by purposes and use occasion and have pod apertures plate valve, without pod apertures plate valve, oil field plate valve, pipeline plate valve and gas flat plate gate valve etc.
But plate valve of the prior art is perfect not in the tolerance and sealing of temperature, traditional valve plate and valve seat easily wear and tear under the impact of high-pressure liquid, and working life is short, finally causes valve invalidation.
[model utility content]
The purpose of this utility model is exactly to solve the deficiency of prior art middle plateform gate valve in tolerance etc. and defect, a kind of novel structure is provided, safe and reliable, long service life and the improved flat gate valve of good airproof performance, comprise valve seat, valve body, flashboard, valve rod, bonnet, valve gap, it is characterized in that described valve body comprises valve body top and a valve body lower portion, described valve body top comprises a transition apparatus, transition apparatus has a linear gap, described valve body lower portion center has circular hole, described linear gap extends to valve body lower portion circular hole place from valve body top, pad is provided with inside valve body lower portion, described pad has a groove corresponding with linear gap position, described valve body both sides are respectively equipped with retaining ring, described retaining ring has a joint be connected with pad buckle.
Adopt triple packing seal structure between valve gap and valve rod, described triple packing seal structure comprise: nitrile butadiene rubber, teflon and Expanded graphite.
Be provided with dual packing seal structure between valve seat and valve body, described dual packing seal structure comprises: metallic gasket and nitrile butadiene rubber.
The joint of valve gap and valve body is provided with sealing gasket, and sealing gasket to be exerted pressure to pad by screw bolt and nut thus fastening.
Valve body is provided with pollutant exhaust hole.
Flashboard is provided with curved slot arrangement.
Compared with the existing technology, its advantage is that the utility model effectively reduces the wearing and tearing of sealing surface relative movement generation to the utility model, and multiple fixed structure design of the present utility model is ingenious, sealing is obtained and surpassingly promotes.In addition, the utility model sealing surface has wear-resisting, corrosion resistant cemented carbide, by force, sealing in use, Security are obtained for better guarantee for resistance to compression and wear resistance.
[accompanying drawing explanation]
Fig. 1 is the main application structure schematic diagram of the utility model embodiment;
Fig. 2 is the structural representation of the utility model embodiment plate valve;
Fig. 1 is specified to be Figure of abstract of the present utility model;
As shown in the figure, in figure: 1. the linear gap of valve body 2. first retaining ring 3. pad 4. groove 5. circular hole 6. second retaining ring 7.;
Fig. 2 is specified to be Figure of abstract of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 2, the utility model is a kind of improved flat gate valve, comprises valve seat, valve body, flashboard, valve rod, bonnet, valve gap.Wherein valve body 1 comprises valve body top and valve body lower portion, valve body top has transition apparatus, transition apparatus has a linear gap, valve body lower portion center has circular hole, linear gap extends to valve body lower portion circular hole place from valve body top, pad is provided with inside valve body lower portion, pad has a groove corresponding with linear gap position, valve body both sides are respectively equipped with retaining ring, retaining ring has a joint be connected with pad buckle, in use, retaining ring is fastened in pad by its joint, the linear gap on the corresponding transition apparatus of groove at pad top.Wherein the first retaining ring 2 and the second retaining ring 6 are located at the both sides of pad respectively, realize double-side fastening, effectively ensure sealing effect.
Flange seal adopts the combination of metallic gasket and nitrile butadiene rubber, adopts triple packing seal structure of nitrile butadiene rubber, teflon and Expanded graphite between valve gap and valve rod.Guarantee to ensure sealability at various temperatures, prevent dielectric leakage.
Claims (7)
1. an improved flat gate valve, comprise valve seat, valve body, flashboard, valve rod, bonnet, valve gap, it is characterized in that described valve body comprises valve body top and a valve body lower portion, described valve body top comprises a transition apparatus, transition apparatus has a linear gap, described valve body lower portion center has circular hole, described linear gap extends to valve body lower portion circular hole place from valve body top, pad is provided with inside valve body lower portion, described pad has a groove corresponding with linear gap position, described valve body both sides are respectively equipped with retaining ring, described retaining ring has a joint be connected with pad buckle.
2. a kind of improved flat gate valve as claimed in claim 1, it is characterized in that adopting triple packing seal structure between described valve gap and valve rod, described triple packing seal structure comprise: nitrile butadiene rubber, teflon and Expanded graphite.
3. a kind of improved flat gate valve as claimed in claim 1, it is characterized in that being provided with dual packing seal structure between described valve seat and valve body, described dual packing seal structure comprises: metallic gasket and nitrile butadiene rubber.
4. a kind of improved flat gate valve as claimed in claim 1, is characterized in that the joint of described valve gap and valve body is provided with sealing gasket, and sealing gasket to be exerted pressure to pad by screw bolt and nut thus fastening.
5. a kind of improved flat gate valve as claimed in claim 1, is characterized in that described valve body is provided with pollutant exhaust hole.
6. a kind of improved flat gate valve as claimed in claim 1, is characterized in that described flashboard is provided with curved slot arrangement.
7. a kind of improved flat gate valve as claimed in claim 1, is characterized in that described retaining ring comprises the first retaining ring and the second retaining ring, is located at the both sides of transition apparatus respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854569.XU CN204437318U (en) | 2014-12-26 | 2014-12-26 | A kind of improved flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854569.XU CN204437318U (en) | 2014-12-26 | 2014-12-26 | A kind of improved flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204437318U true CN204437318U (en) | 2015-07-01 |
Family
ID=53605187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420854569.XU Expired - Lifetime CN204437318U (en) | 2014-12-26 | 2014-12-26 | A kind of improved flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204437318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113226950A (en) * | 2018-12-21 | 2021-08-06 | 佩里米特解决方案有限公司 | Gate valve sealing ring flow guide mechanism |
-
2014
- 2014-12-26 CN CN201420854569.XU patent/CN204437318U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113226950A (en) * | 2018-12-21 | 2021-08-06 | 佩里米特解决方案有限公司 | Gate valve sealing ring flow guide mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150701 |