CN2046570U - High-pressure stop valve - Google Patents
High-pressure stop valve Download PDFInfo
- Publication number
- CN2046570U CN2046570U CN 88213508 CN88213508U CN2046570U CN 2046570 U CN2046570 U CN 2046570U CN 88213508 CN88213508 CN 88213508 CN 88213508 U CN88213508 U CN 88213508U CN 2046570 U CN2046570 U CN 2046570U
- Authority
- CN
- China
- Prior art keywords
- stop valve
- piston
- high pressure
- pressure
- pressure balanced
- 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.)
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Abstract
The utility model provides a balancing high-pressure stop valve, which has the advantages of high reliability, convenient maintenance, reasonable structure, small size, light weight, portability and lightness. The balancing high-pressure stop valve is applied to a high-pressure water injection system of oilfields and other high-pressure pipelines. More than 90 per cent of the opening and closing resistance force is balanced by means of the pressure of a medium itself. The utility model carrys out a special process on key parts of the structure of the balancing high-pressure stop valve, adopting a column type guide positioning mechanism to enlarge the inner cavity of the balancing high-pressure stop valve. A groove is arranged on the lower part of a piston, and the balancing high-pressure stop valve saves steel more than twice compared with the same caliber under the same pressure.
Description
The utility model is a kind of high pressure balanced type stop valve, and it is used on high oil field water injection system and other high pressure pipe line.
The utility model just provide volume little, in light weight, save a kind of high pressure balanced type stop valve of steel and switch light and flexible.
The guide locating device provided screw thread part that is located at valve rod of existing equilibrium valve, the needed height size is bigger.Upright post type guide-localization of the present utility model mechanism, it is by the guide positioning pin (6) that leans on screwed connection on valve gap (8) and go up locating slot (d) formation of processing at piston (1), guide positioning pin (6) can be free to slide in locating slot (d), can reduce valve needed height size like this.
Existing equilibrium valve intracoelomic cavity and piston are with the footpath, piston need all place on the outlet during unlatching, the utility model enlarges valve body (7) inner cavity size, simultaneously be provided with groove in piston (1) bottom, formed piston cavity (A), can reduce the lifting height of piston like this, can guarantee circulation area equally, thereby force down this valve height dimension again greater than drift diameter area.
The fixed metallic seal of the general employing of existing equilibrium valve.The utility model adopts hard oil resistant rubber seal ring (4) sealing, and this circle is loop type, and is equipped with the pressing plate (3) with inner groove and four through holes and fixes it, and the sealing surface gradient is 1 to 4.
Below with reference to accompanying drawing the utility model is described in further detail.
Fig. 1 is a kind of longitudinal sectional drawing of high pressure balanced type stop valve.
With reference to Fig. 1, when valve cuts out, clockwise direction rotatable handle (10) drives big nut (11) along bearing (12) rotation of rolling together.Because nut rotation forces leading screw (2) downward, at this moment piston (1) synchronously downwards, high-pressure medium entered counter balance pocket (B) pressure by equalizing orifice and tended to balance this moment, close laborsaving flexibly, press to till sealing seat forms sealing up to seal ring (4).The polished rod part of leading screw (2), piston (1) all seal by " O " RunddichtringO (5), (9) with valve body (7).Forming an enclosed balance chamber (B) that only communicates with inlet can balance major part by counter balance pocket (B) and equalizing orifice (C) and close resistance.During opening of valves, counterclockwise rotation handle (10) drives big nut (11) along bearing (12) rotation of rolling together.Because the nut rotation forces leading screw (2) to move upward, till piston runs to upper dead center.The piston cavity (A) that this moment, the upstream MEDIA FLOW was crossed after the expansion is failed through exporting outside.In opening process, because counter balance pocket has balanced the dangerous upthrust of most of medium to piston.So medium only has a thrust that makes progress to piston rod.Make flexible operation light.
Description of drawings:
1. piston 2. leading screws 3. pressing plates 4. seal ring 5. " O " RunddichtringOs 6. guide positioning pins 7. valve bodies 8. valve gap 9. " O " RunddichtringOs 10. handles 11. big nuts 12. bearing A. piston cavity B. counter balance pocket C. equalizing orifice d. locating slots
Claims (5)
1, the utility model is an a kind of high pressure balanced type stop valve of being made up of handle (10), bearing (12), big nut (11), leading screw (2), piston (1), valve body (7), guide positioning pin (6), seal ring (4), " O " RunddichtringO (5), (9), piston cavity (A), counter balance pocket (B), equalizing orifice (C) and locating slot (d), and feature of the present utility model is:
A, on high pressure balanced type stop valve pressure balance mechanism is housed, this mechanism comprises that the piston (1) of valve body (7) and valve seal cooperation, pressing plate (3), valve gap (8) and " O " RunddichtringO (5), (9) that equalizing orifice (C), counter balance pocket (B), the piston lower end of the last processing of piston (1) are connected by screw constitute.
B is equipped with the upright post type guide mechanism on high pressure balanced type stop valve, this mechanism comprises that the guide positioning pin (6) by screwed connection on the valve gap (8), the locating slot (d) that piston (1) is gone up processing constitute.
2, a kind of high pressure balanced type stop valve according to claim 1 is characterized in that piston (1) bottom is fluted.
3, a kind of high pressure balanced type stop valve according to claim 1 is characterized in that locating slot (d) is arranged on the piston (1).
4, a kind of high pressure balanced type stop valve according to claim 1 is characterized in that piston cavity (A) moves the position up and down at pistion recess and partly also be provided with groove with respect to cavity.
5, a kind of high pressure balanced type stop valve according to claim 1 is characterized in that seal ring (4) employing loop type and is equipped with the pressing plate (3) with inner groove and four through holes fixing it, and seal ring sealing surface gradient is 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88213508 CN2046570U (en) | 1988-08-20 | 1988-08-20 | High-pressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88213508 CN2046570U (en) | 1988-08-20 | 1988-08-20 | High-pressure stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2046570U true CN2046570U (en) | 1989-10-25 |
Family
ID=4846606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88213508 Withdrawn CN2046570U (en) | 1988-08-20 | 1988-08-20 | High-pressure stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2046570U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853087A (en) * | 2012-07-25 | 2013-01-02 | 盐城市中液液压件有限公司 | Pressure balancing high-pressure stop valve |
| CN108397592A (en) * | 2018-05-16 | 2018-08-14 | 华北水利水电大学 | Plug type bulkhgead gate |
| CN111336261A (en) * | 2020-04-10 | 2020-06-26 | 永嘉企达知识产权咨询有限公司 | Stop valve for pipeline |
-
1988
- 1988-08-20 CN CN 88213508 patent/CN2046570U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853087A (en) * | 2012-07-25 | 2013-01-02 | 盐城市中液液压件有限公司 | Pressure balancing high-pressure stop valve |
| CN108397592A (en) * | 2018-05-16 | 2018-08-14 | 华北水利水电大学 | Plug type bulkhgead gate |
| CN111336261A (en) * | 2020-04-10 | 2020-06-26 | 永嘉企达知识产权咨询有限公司 | Stop valve for pipeline |
| CN111336261B (en) * | 2020-04-10 | 2021-07-13 | 希佛隆阀门集团有限公司 | Stop valve for pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |