CN2515470Y - Control valve - Google Patents
Control valve Download PDFInfo
- Publication number
- CN2515470Y CN2515470Y CN 01251788 CN01251788U CN2515470Y CN 2515470 Y CN2515470 Y CN 2515470Y CN 01251788 CN01251788 CN 01251788 CN 01251788 U CN01251788 U CN 01251788U CN 2515470 Y CN2515470 Y CN 2515470Y
- Authority
- CN
- China
- Prior art keywords
- valve
- housing
- slide block
- control valve
- shaft
- 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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- Taps Or Cocks (AREA)
Abstract
A control valve comprises a valve body, a plug, a valve bonnet, a valve shaft and a driving part. With rotation of the driving part to move a slider, an upper and lower nut is driven to rotate, then the valve shaft and the plug move up or move down to achieve opening and closing of the valve. When opening and closing the valve, the plug moves away at first and then after turning 90 degrees, the valve is opened and closed, which diminishes abrasion and is convenient to open and close. And Monel alloy is weld on the sealing surface of the valve body and the plug, thereby the valve solves the problems that the sealing surface of the existing control valve is easy to wear, service life is short, volume is big, and the existing valve is only applicable to the small caliber to hinder the development of long pipelines. The control valve is widely applicable to various long distance pipelines.
Description
A kind of control valve particularly a kind ofly is used for liquid or gas delivery to store the pipe network pressure loss little, control valve that can emergency cut-off.
In the long-distance transmission pipeline engineering in China's past, ball valve commonly used and plate valve be as the medium control apparatus, but because ball valve in use during switch valve, easily produces friction between two sealing surfaces, sealing surface is easy to wear, working life is short; And plate valve adopts the end face seal form, and the sealing leakproofness is relatively poor relatively, and volume is bigger simultaneously, only is suitable for small-bore.These all hinder the development of China's long-distance transport pipes.
The purpose of this utility model is to provide a kind of seal form to adopt the conical surface seal of metal to metal, and can realizes emergency cut-off, good seal performance, the control valve of long service life.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model is by valve body 9, cock 8, valve gap 7, valve shaft 2 and drive part are formed, the housing 6 of drive part by screw on valve gap 7, it is characterized in that: a valve shaft 2 that links to each other with cock 8 in the valve body 9 is arranged in the housing 6 of drive part, a crank 3 is equipped with in the upper end portion of the valve shaft 2 in the housing 6, lower nut 5 is equipped with in the underpart, flange is equipped with a umbrella gear driving mechanism 10 outward in the housing 6, and be connected with housing intermediate solid drive shaft 18, transmission shaft 18 is threaded with slide block 4, slide block 4 is limited on the guide rod 11 and moves, slide block 4 links to each other with last lower nut 5 by connecting rod 17 in the bottom, slide block 4 tops contact with crank 3 peripheries by bearing 16, in housing 6, be provided with the stop screw 12 and 13 of restriction crank 3 and slide block 4 positions, one end cover 1 arranged in housing 6 upper ends.The sealing surfaces of valve body 9 and cock 8 is sprayed with Monel alloy- layer 15 and 14.
The utility model has the advantages that: can satisfy the long-distance transport pipes requirement well, its sealing is fine, and seal form adopts the conical surface seal of metal to metal, has double seal, and the pass is tight more more, and self-locking performance is good.And structurally have additional oil-sealing arrangement, and behind the valve of pass, between sealing surface, produce one deck oil film, it is reached fully do not leak.
The utility model will be further described below in conjunction with accompanying drawing.
Accompanying drawing 1 is the structural representation of control valve.
Accompanying drawing 2 is the A-A sectional view of control valve.
Accompanying drawing 3 is the I place enlarged view of control valve.
This control valve is mainly graded by valve body 9, cock 8, valve gap 7, valve shaft 2 and transmission unit and forms.During work, driving mechanism 10 rotations drive transmission shaft 18 and rotate.Slide block 4 moves on guide rod 11, the first step, and slide block 4 drives by connecting rod 17 and goes up lower nut 5 rotations, and crank 3 is motionless, and valve shaft 2 and cock 8 are risen, and two sealing surfaces break away from; In second step, slide block 4 continuation motions drive crank 3 and rotate, and make valve shaft 2 and cock 8 half-twists, so neither can abrade sealing surface, make that again keying moment is little, and prolong working life.In the 3rd step, slide block 4 continues motion, crank 3 stop motions, and drivening rod 17 and last lower nut 5 counter-rotation descend valve shaft 2 and cock 8, two sealing surface combinations, thus reach the process of opening and closing valve.For the wearing and tearing and the increase sealing effect that reduce sealing surface, this control valve has Monel alloy- layer 15 and 14 at the valve body 9 and the cock 8 sealing surfaces surfacings of its sealing pair.In addition, the sealing surface surface was provided with oil groove in one week on valve body 9, and after the oiling, two sealing surfaces produce oil film seal.During valve wide open, because of cone passage and the same bore of pipeline, so the valve pressure loss is very little.Driving mode can for manual, electronic, surge, electric liquid interlock etc., emergency shutoff device is equipped with and, can reach the emergency cut-off effect, also can utilize PLC to realize operation and distant control automatically very easily.
Claims (2)
1. control valve, it is by valve body 9, cock 8, valve gap 7, valve shaft 2 and drive part are formed, the housing 6 of drive part by screw on valve gap 7, it is characterized in that: a valve shaft 2 that links to each other with cock 8 in the valve body 9 is arranged in the housing 6 of drive part, a crank 3 is equipped with in the upper end portion of the valve shaft 2 in the housing 6, lower nut 5 is equipped with in the underpart, flange is equipped with a umbrella gear driving mechanism 10 outward in the housing 6, and be connected with housing intermediate solid drive shaft 18, transmission shaft 18 is threaded with slide block 4, slide block 4 is limited on the guide rod 11 and moves, slide block 4 links to each other with last lower nut 5 by connecting rod 17 in the bottom, slide block 4 tops contact with crank 3 peripheries by bearing 16, are provided with the stop screw 12 and 13 of restriction crank 3 and slide block 4 positions in housing 6, in housing 6 upper ends one end cover 1 are arranged.
2. control valve according to claim 1 is characterized in that: the sealing surfaces of valve body 9 and cock 8 is sprayed with Monel alloy-layer 15 and 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01251788 CN2515470Y (en) | 2001-09-06 | 2001-09-06 | Control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01251788 CN2515470Y (en) | 2001-09-06 | 2001-09-06 | Control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2515470Y true CN2515470Y (en) | 2002-10-09 |
Family
ID=33661635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01251788 Expired - Fee Related CN2515470Y (en) | 2001-09-06 | 2001-09-06 | Control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2515470Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984386A (en) * | 2014-04-18 | 2014-08-13 | 浙江三方控制阀股份有限公司 | Crankshaft sliding block type hand wheel mechanism |
-
2001
- 2001-09-06 CN CN 01251788 patent/CN2515470Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984386A (en) * | 2014-04-18 | 2014-08-13 | 浙江三方控制阀股份有限公司 | Crankshaft sliding block type hand wheel mechanism |
| CN103984386B (en) * | 2014-04-18 | 2015-12-30 | 浙江三方控制阀股份有限公司 | Bent axle slide block type hand wheel mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20021009 Termination date: 20100906 |