CN201810798U - Manual gate valve - Google Patents
Manual gate valve Download PDFInfo
- Publication number
- CN201810798U CN201810798U CN2010203026833U CN201020302683U CN201810798U CN 201810798 U CN201810798 U CN 201810798U CN 2010203026833 U CN2010203026833 U CN 2010203026833U CN 201020302683 U CN201020302683 U CN 201020302683U CN 201810798 U CN201810798 U CN 201810798U
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- CN
- China
- Prior art keywords
- valve
- wear
- valve plate
- gate valve
- graphite packing
- 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 the technical field of valves, in particular to a manual gate valve, which comprises a valve body, a valve plate, a valve stem and a hand wheel. The manual gate valve is characterized in that a wear-resistant sealing sleeve is arranged in the valve body, graphite packing in the wear-resistant sealing sleeve is symmetrically disposed on two sides of the valve plate, and sealing packing of the valve plate is graphite packing. Compared with the prior art, the manual gate valve reasonably increases surfaces of portions easy to be worn as the wear-resistant sealing sleeve is arranged in the valve body and the graphite packing is arranged on the sealed surface of the valve plate, and accordingly the service life of the valve is greatly prolonged. As both the graphite packing in the wear-resistant sealing sleeve and the valve plate are independent parts, the manual gate valve is simple, convenient and easy in replacement, lower in manufacturing cost, easy in installation and strong in practicality.
Description
Technical field
The utility model relates to valve technology field, specifically manually gate valve.
Background technique
The conveyings such as dusting apparatus of the ash-slag disposal system that cement plant, power station are used, mill tailings transporting system, fluid power preparation equipment, steel works are mixed with in the pipeline of particulate matter liquid, widely used a kind of valve is the handwheel gate valve, the valve plate and the valve rod of gate valve are affixed, drive it by handwheel and open through-flow or closed cutout.Owing to contain a large amount of lime-ash, slag in the powder of carrying, they can form serious friction to valve plate, valve body, so valve is easy to because of friction causes interior leakage, its operating life is shorter.Analyzing the main cause of valve wearing and tearing can find, when the powder proper flow, lime-ash or slag are relative with the friction of valve body tube wall less, and in valve opening or pass closed procedure, the motion state of powder is undergone mutation, form eddy current, intense impact valve plate and the valve body sealing surface that contacts with valve plate, frictional force increases progressively, valve plate, valve body sealing surface serious wear, it increases the two matching gap, thereby causes valves leakage for a long time.At above-mentioned reason, increase valve plate and valve seal intensity, to improve its sealing is to prolong the valve direct method in working life, but whole change valve material certainly will increase the cost of valve, and if only change the valve internal material, then, the structure of valve itself the machining process complexity can increase the valve cost equally because of making.
Summary of the invention
That the utility model provides is a kind of simple for structure, be provided with the wear-resistant seal cover in the valve body, and stuffing box packing is that graphite packing and valve plate material are high-abrasive material in the wear-resistant seal cover, thereby can improve the valve manually gate valve in working life greatly.
The utility model is achieved by the following technical solution: a kind of manually gate valve, comprise valve body, valve plate, valve rod, pneumatic actuator, electric actuator, wherein affixed, the valve rod of valve plate, valve rod is fixedlyed connected with the handwheel final controlling element, its major technique feature is to be provided with the wear-resistant seal cover in the described valve body, closely paste mutually with the valve plate both sides for the graphite packing is symmetricly set on the valve plate both sides in the wear-resistant seal cover, the gap is 0 millimeter;
Described wear-resistant seal cover is the graphite packing, and its thickness is 8 millimeters;
Described drive unit is the handwheel final controlling element.
The utility model is compared with prior art, is set up wear-resistant seal cover and graphite plate root timber material is set on sealing surface of valve plate at valve body, and the valve plate material is a high-abrasive material, rationally improves wear resistance, sealing, thereby improves valve working life greatly.Because of graphite packing in the wear-resistant seal cover and valve plate are individual part, change simple and easy to do when handling, the cost cost is lower, be easy to install, so practical.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the valve board structure schematic representation;
Fig. 3 is the structural representation of wear-resistant seal cover.
Embodiment
Among the figure, 1, valve body; 2, valve plate; 3, wear-resistant seal cover; 4, graphite packing; 5, gland
6, valve rod connects part 7, handwheel
As Fig. 1-Fig. 3, the utility model comprises 1, valve body; 2, valve plate; 3, wear-resistant seal cover; 4, graphite packing; 5, gland; 6, valve rod connects part; 7, handwheel.The handwheel final controlling element drives valve plate and moves up and down, and realizes the unlatching and the closure of valve.1, be provided with wear-resistant seal cover 3 in valve body, graphite packing 4 is symmetricly set on the valve plate both sides in the wear-resistant seal cover, and described valve plate stuffing box packing is a graphite packing 4.2, be set up wear-resistant seal cover and graphite plate root timber material is set on sealing surface of valve plate at valve body, valve plate 2 materials are high-abrasive material, rationally improve wear resistance, sealing, thereby improve valve working life greatly.Because of graphite packing in the wear-resistant seal cover and valve plate are individual part, change simple and easy to do when handling, the cost cost is lower, be easy to install, so practical.3, the described drive unit of manually gate valve is a handwheel.
Claims (3)
1. manually gate valve, comprise valve body, valve plate, valve rod and handwheel, it is characterized in that: be provided with the wear-resistant seal cover in the described valve body, stuffing box packing is closely pasted with the valve plate both sides mutually for the graphite packing is symmetricly set on the valve plate both sides in the wear-resistant seal cover, and the gap is 0 millimeter.
2. manually gate valve as claimed in claim 1 is characterized in that: be the graphite packing in the described wear-resistant seal cover, its thickness is 8 millimeters.
3. manually gate valve as claimed in claim 1 or 2 is characterized in that: the drive unit of described manually gate valve is a handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203026833U CN201810798U (en) | 2010-02-09 | 2010-02-09 | Manual gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203026833U CN201810798U (en) | 2010-02-09 | 2010-02-09 | Manual gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810798U true CN201810798U (en) | 2011-04-27 |
Family
ID=43893739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203026833U Expired - Fee Related CN201810798U (en) | 2010-02-09 | 2010-02-09 | Manual gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051193A (en) * | 2016-07-26 | 2016-10-26 | 北京华福工程有限公司 | Novel self-sealed gate valve |
-
2010
- 2010-02-09 CN CN2010203026833U patent/CN201810798U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051193A (en) * | 2016-07-26 | 2016-10-26 | 北京华福工程有限公司 | Novel self-sealed gate valve |
| CN106051193B (en) * | 2016-07-26 | 2018-04-20 | 北京华福工程有限公司 | A kind of self sealss gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG HENG'ENTUO ELECTROMECHANICAL ENGINEERING Free format text: FORMER OWNER: HANGZHOU FUYANG HENT ELECTROMECHANICAL CO., LTD. Effective date: 20150708 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150708 Address after: No. 57 Hangzhou City, Zhejiang province Fuyang District 311400 West Riverside Avenue International Trade Center seven storey office Patentee after: Zhejiang Heng Entuo electromechanical engineering Co., Ltd Address before: 57 No. 311400 Zhejiang province Fuyang City West Riverside Avenue International Trade Center 7 storey office building Patentee before: Hangzhou Hent Electromechanical Engineering Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20180209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |