CN2032669U - Antiwear high-pressure stop valve - Google Patents
Antiwear high-pressure stop valve Download PDFInfo
- Publication number
- CN2032669U CN2032669U CN 88211802 CN88211802U CN2032669U CN 2032669 U CN2032669 U CN 2032669U CN 88211802 CN88211802 CN 88211802 CN 88211802 U CN88211802 U CN 88211802U CN 2032669 U CN2032669 U CN 2032669U
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure stop
- stop valve
- valve seat
- pipe nipple
- 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.)
- Withdrawn
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- Lift Valve (AREA)
Abstract
The utility model provides an antiwear high-pressure stop valve, which is provided with a metallic pup joint as a valve base embeded within a hole of an inlet flow passage movably. A sealing surface of the valve base of the metallic pup joint is a plane surface with a convex rabbet which is engaged with a sealing surface of a valve core with an inner concave, forming a cut-off sealing surface of the antiwear high-pressure stop valve. Adopting the antiwear high-pressure stop valve of the utility model avoids that high-pressure liquid directly washes the sealing surface, the erosion condition is improve, the service life of the antiwear high-pressure stop valve is increased by 6 to 10 times, and thus the erosion by liquid between the valve base and the antiwear high-pressure stop valve body is avoided.
Description
The utility model is the high-pressure stop valve of relevant anti-abrasion.
High-pressure stop valve up to now, the sealing surface that dams of its valve seat and spool mostly is cone structure greatly, and this conical seal (contact) face place surfacing hard alloy layer is to improve its wear resistance.Valve seat is threaded with general employing of valve body.
Though the sealing surface of this structure has the minimizing fluid resistance, improve the axially loaded situation of valve rod, improve its wear resistance to a certain extent.But,, be easy to generate abrasion and cause and come off because the cemented carbide spray-welding coating directly is subjected to washing away of highly pressurised liquid.And the connecting thread of valve seat and valve body is the easily abrasion of liquid body and getting loose also.
The purpose of this utility model be to provide a kind of dam sealing surface not liquid body directly wash away, and valve seat is connected safe reliably anti-abrasion high-pressure stop valve with valve body.
The utility model is finished as follows.Enlarging along the steering handle runner hole of high-pressure stop valve valve body inlet channel, in the inlet channel hole that has enlarged, inlaying a metal pipe nipple as valve seat.One end and the German-style metal lensring of this metal pipe nipple valve seat are weldingly connected, and the other end is processed into the plane of band convex seam.German-style metal lensring plays the sealing gasket effect at place, valve flange plane.The lug boss of convex stop portion forms one " dead angle ", can protect the sealing plane of metal pipe nipple valve seat to avoid liquid and directly wash away.The face of being sealed and matched of spool is the plane of indent, matches with the plane of metal pipe nipple valve seat band convex seam, forms the sealing surface that dams of high-pressure stop valve.
This metal pipe nipple valve seat is embedded in the valve body movingly." close dead " valve gently earlier during installation, make spool push down metal pipe nipple valve seat, tighten the connecting bolt of German-style metal lensring place flange then, to guarantee its location and sealing.
The material of metal pipe nipple valve seat adopts OCr17Mn13Mo2N, and the width of its sealing surface is 4.5 millimeters.The material of spool is 316L, and the seal f ace width that matches with metal pipe nipple valve seat is 3.5 millimeters.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Accompanying drawing 1 is the longitudinal sectional drawing of a kind of concrete structure of the utility model; Accompanying drawing 2 is spool enlarged views; Accompanying drawing 3 is metal pipe nipple valve seat enlarged views.
1 is valve body, the 2nd among the figure, spool, the 3rd, metal pipe nipple valve seat, the 4th, German-style metal lensring, the 5th, flange, the 6th, valve rod.
In the valve body 1 inlet channel hole that has enlarged, be inlaid into metal pipe nipple valve seat 3 movingly.One end and the German-style metal lensring 4 of this metal pipe nipple valve seat 3 are weldingly connected, and the other end then is processed into the plane of band convex seam.Spool 2 adopts with valve rod 6 and is threaded, and rotation valve rod 6 can make spool 2 make knee-action.The face of being sealed and matched of this spool 2 is to match with the sealing plane of the band convex seam of metal short circuit valve seat 3 in the plane of indent, forms the sealing surface that dams of high-pressure stop valve.During installation, first rotation valve rod 6 makes the indent sealing plane of spool 2 push down the plane of the band convex seam of metal pipe nipple valve seat 3, tightens the bolt (not shown) at flange 5 places then.German-style metal lensring 4 is positioned at the place, plane of valve body 1 inlet channel, when tightening the bolt at flange 5 places, plays the effect of sealing gasket.Like this, when highly pressurised liquid enters the metal pipe nipple valve seat 3 that is embedded in the inlet channel,, make the sealing plane of metal pipe nipple valve seat 3 can not be subjected to directly washing away of liquid, prevented abrasion owing to stopping of the convex seam that is subjected to metal pipe nipple valve seat 3 one ends; And metal pipe nipple valve seat 3 is to be embedded in movingly in the valve body 1, therefore can avoid valve seat 3 and valve seat 1 joint liquid body corrosion and gets loose, thereby reach the purpose of this utility model.
After adopting high-pressure stop valve of the present utility model, because the sealing surface of spool is the plane of indent, and the sealing surface of valve seat be the plane with the convex seam, therefore can avoid highly pressurised liquid directly to wash away sealing surface, thereby can prevent from denuding. Compare with the high-pressure stop valve of conical seal (contact) face, can improve 6～10 times service life. In addition, because metal pipe nipple valve seat is to be embedded in the valve body movingly, so can avoid valve seat and the corrosion of valve body junction liquid body and get loose. Antiwear high-pressure stop valve of the present utility model dams for the fluid such as 220 kg/cm urea synthesis reaction liquid and is very practical.
Claims (4)
1, a kind of by valve body, valve seat, spool, and the high-pressure stop valve formed such as valve rod.It is characterized in that in the inlet channel of valve body inlay a metal pipe nipple as valve seat, this metal pipe nipple one end and German-style metal lensring are weldingly connected, the other end is the plane of band convex seam, and the face of being sealed and matched of spool is the plane of indent.
2, by the described anti-abrasion high-pressure stop valve of claim 1, it is characterized in that metal pipe nipple valve seat is embedded in the valve body movingly.
3, by the described anti-abrasion high-pressure stop valve of claim 1, it is characterized in that the material of metal pipe nipple valve seat adopts OCr17Mn 13Mo2N, the material of spool adopts 316L.
4, by the described anti-abrasion high-pressure stop valve of claim 1, the face of being sealed and matched that it is characterized in that metal pipe nipple valve seat and spool is the unequal plane of width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211802 CN2032669U (en) | 1988-05-21 | 1988-05-21 | Antiwear high-pressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211802 CN2032669U (en) | 1988-05-21 | 1988-05-21 | Antiwear high-pressure stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2032669U true CN2032669U (en) | 1989-02-15 |
Family
ID=4845177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88211802 Withdrawn CN2032669U (en) | 1988-05-21 | 1988-05-21 | Antiwear high-pressure stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2032669U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449188C (en) * | 2006-11-22 | 2009-01-07 | 广州聚能生物科技有限公司 | Plane type one-way valve |
| CN101549452B (en) * | 2008-04-03 | 2011-01-26 | 四川神坤电液控制技术有限公司 | Processing method of valve inclined flow passage |
-
1988
- 1988-05-21 CN CN 88211802 patent/CN2032669U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449188C (en) * | 2006-11-22 | 2009-01-07 | 广州聚能生物科技有限公司 | Plane type one-way valve |
| CN101549452B (en) * | 2008-04-03 | 2011-01-26 | 四川神坤电液控制技术有限公司 | Processing method of valve inclined flow passage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |