CN105822779A - Multi-conical-face valve seat structure of high-temperature and high-pressure stop valve body - Google Patents
Multi-conical-face valve seat structure of high-temperature and high-pressure stop valve body Download PDFInfo
- Publication number
- CN105822779A CN105822779A CN201610181992.1A CN201610181992A CN105822779A CN 105822779 A CN105822779 A CN 105822779A CN 201610181992 A CN201610181992 A CN 201610181992A CN 105822779 A CN105822779 A CN 105822779A
- Authority
- CN
- China
- Prior art keywords
- bore diameter
- conical
- valve seat
- sealing surface
- seat structure
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
Abstract
The invention aims at providing a multi-conical-face valve seat structure of a high-temperature and high-pressure stop valve body. The multi-conical-face valve seat structure is composed of three connected conical faces at different angles and formed through a rolling process. The precision, the surface roughness, the hardness and the fatigue strength of the multi-conical-face valve seat structure formed in a rolling manner are remarkably improved, the sealing performance is more reliable, and the service life is longer.
Description
Technical field
The present invention relates to industrial automation control system, liquid in all kinds of instrument (flow, differential pressure, pressure, liquid level etc.) pipeline or the keying of gas with control device.
Background technology
The valve seat construction of wide variety of instrument block valve valve body is all directly completed by machining on valve body, and part high temperature high pressure valve carries out machining after valve seat location pile-up welding hard alloy material again, to improve hardness and the fatigue strength of sealing surface of seat.Therefore, the microstructure of valve seat, machining accuracy, surface roughness, hardness and fatigue strength are in close relations with the sealing property of valve and service life, are particularly well-suited to high-temperature high pressure valve.
Summary of the invention
It is an object of the invention to provide many conical valves holder structure of a kind of high temperature and high pressure cut-off valve valve body, it is made up of the conical surface of three different angles being connected, by rolling technology molding, the many cone structures of valve seat of roll forming, its precision, surface roughness, hardness and fatigue strength significantly improve, sealing property is relatively reliable, and service life is longer.
The technical scheme is that
A kind of many conical valves holder structure of high temperature and high pressure cut-off valve valve body, by bore diameter d, bore diameter D, cone angle a1, sealing surface tapering a2, end oblique angle a3 composition, it is characterized in that: the degree of depth of bore diameter D is h1, the degree of depth of cone angle a1 is h2, the degree of depth of sealing surface tapering a2 is h3, end oblique angle a3 in the plane to the border width of sealing surface tapering a2 be b, at machined bore diameter d, bore diameter D and with on described inner face adjacent for bore diameter D, respectively with customized cone angle a1, the rolling tools of sealing surface tapering a2 and end oblique angle a3 carry out rolling and processing to be completed.
Advantages of the present invention and providing the benefit that:
The present invention uses the many cone structures of valve seat, and by rolling technology molding, the many cone structures of valve seat of roll forming, its precision, surface roughness, hardness and fatigue strength significantly improve, and substantially increase sealing property and the service life of valve.
Accompanying drawing explanation
Fig. 1 is the location drawing of valve seat in valve body
In figure: A, valve seat
Fig. 2 is the structure chart of valve seat A
In figure: d, bore diameter D, bore diameter h1, bore hole length a1, cone angle a2, sealing surface tapering h2, coning angle a1 length h3, sealing surface cone angle a2, length a3, end oblique angle b, end material angle a3 width
Fig. 3 is high temperature and high pressure cut-off valve structure chart
In figure: 1, handle 2, valve rod 3, spool 4, valve body 5, sealing surface of seat.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
A kind of many conical valves holder structure of high temperature and high pressure cut-off valve valve body, by bore diameter (d), bore diameter (D), cone angle (a1), sealing surface tapering (a2), end oblique angle (a3) composition, it is characterized in that: the degree of depth of bore diameter (D) is h1, the degree of depth of cone angle (a1) is h2, the degree of depth of sealing surface tapering (a2) is h3, end oblique angle (a3) in the plane to the border width of sealing surface tapering (a2) be b, at machined bore diameter (d), bore diameter (D) and with on described inner face adjacent for bore diameter D, respectively with customized cone angle (a1), the rolling tools of sealing surface tapering (a2) and end oblique angle (a3) carry out rolling and processing to be completed.
Claims (1)
1. many conical valves holder structure of a high temperature and high pressure cut-off valve valve body, by bore diameter (d), bore diameter (D), cone angle (a1), sealing surface tapering (a2), end oblique angle (a3) composition, it is characterized in that: the degree of depth of bore diameter (D) is h1, the degree of depth of cone angle (a1) is h2, the degree of depth of sealing surface tapering (a2) is h3, end oblique angle (a3) in the plane to the border width of sealing surface tapering (a2) be b, at machined bore diameter (d), bore diameter (D) and with on described inner face adjacent for bore diameter D, respectively with customized cone angle (a1), the rolling tools of sealing surface tapering (a2) and end oblique angle (a3) carry out rolling and processing to be completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181992.1A CN105822779A (en) | 2016-03-24 | 2016-03-24 | Multi-conical-face valve seat structure of high-temperature and high-pressure stop valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181992.1A CN105822779A (en) | 2016-03-24 | 2016-03-24 | Multi-conical-face valve seat structure of high-temperature and high-pressure stop valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105822779A true CN105822779A (en) | 2016-08-03 |
Family
ID=56524833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610181992.1A Pending CN105822779A (en) | 2016-03-24 | 2016-03-24 | Multi-conical-face valve seat structure of high-temperature and high-pressure stop valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105822779A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618942U (en) * | 2010-04-09 | 2010-11-03 | 余胜东 | Rolling head used for rolling internal conical surfaces |
| CN102407423A (en) * | 2011-09-28 | 2012-04-11 | 于邦仲 | Method for machining valve seat of respiratory flow and rhythm control air valve |
| CN103406734A (en) * | 2013-08-22 | 2013-11-27 | 龙工（上海）精工液压有限公司 | Machining method of valve seat of relief valve |
-
2016
- 2016-03-24 CN CN201610181992.1A patent/CN105822779A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618942U (en) * | 2010-04-09 | 2010-11-03 | 余胜东 | Rolling head used for rolling internal conical surfaces |
| CN102407423A (en) * | 2011-09-28 | 2012-04-11 | 于邦仲 | Method for machining valve seat of respiratory flow and rhythm control air valve |
| CN103406734A (en) * | 2013-08-22 | 2013-11-27 | 龙工（上海）精工液压有限公司 | Machining method of valve seat of relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160803 |
|
| WD01 | Invention patent application deemed withdrawn after publication |