CN203548931U - High-temperature and high-pressure needle valve - Google Patents
High-temperature and high-pressure needle valve Download PDFInfo
- Publication number
- CN203548931U CN203548931U CN201320703575.0U CN201320703575U CN203548931U CN 203548931 U CN203548931 U CN 203548931U CN 201320703575 U CN201320703575 U CN 201320703575U CN 203548931 U CN203548931 U CN 203548931U
- Authority
- CN
- China
- Prior art keywords
- valve
- plug
- rod
- valve rod
- sheathed
- 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
Links
Images
Landscapes
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a high-temperature and high-pressure needle valve which comprises a valve body, a valve deck, a valve rod and a middle head nut. The valve body is provided with a valve cavity, the valve deck is of a hollow structure, a valve plug is arranged at the lower end of the valve deck to be matched with the valve cavity of the valve body, a circle of protruding circular truncated cone is arranged on the upper portion of the valve plug, and an annular structure is formed on the upper portion of the circular truncated cone. A valve tip is arranged at one end of the valve rod, the valve rod is arranged in the valve plug in a penetrating mode, and the valve tip is arranged in the valve cavity. The middle head nut is arranged on the annular structure of the valve deck in a sleeved mode and is fixedly connected with the valve body in a threaded mode. The sealing performance of the product can be better ensured through the design of the taper valve plug. The valve deck separates a sealing piece and a high-temperature and high-pressure cavity fully, and thus the long-term stable working state of the sealing piece is ensured.
Description
Technical field
The utility model relates to a kind of needle type valve, relates in particular to for the needle type valve under high temperature and high pressure environment.
Background technique
In valve industry; between main valve body and valve seat, between valve rod and valve opening, rubber seal is set conventionally and seals; but under high temperature and high pressure environment, rubber seal can due to the problem of material own or product structure protection is not in place causes distortion, thereby occurs leakage failure.
Summary of the invention
The utility model, for the deficiencies in the prior art, provides a kind of rational in infrastructure, the reliable high-temperature high-pressure needle type valve of working efficiency under high temperature and high pressure environment.
The utility model is realized by following scheme:
A kind of high-temperature high-pressure needle type valve, comprise valve body, valve gap, valve rod and middle head nut, described valve body is provided with valve pocket, described valve gap is hollow structure, valve gap lower end is valve plug setting, be equipped with valve body valve pocket, valve plug top is provided with the outstanding round platform setting of a circle, and round platform top is circle structure setting; Described valve rod one end is that valve point arranges, and valve rod is arranged in valve plug, and valve point is arranged in valve pocket; Described middle head nut is sheathed on valve gap circle structure and with valve body and is fixedly connected with by screw thread.
Also comprise sealing gasket, gland, Stem Mut and pressure mother, described sealing gasket is sheathed on valve rod and is arranged in valve plug; Described valve plug is sheathed on valve rod and is arranged at sealing gasket outside; Described Stem Mut is sheathed on valve rod and is arranged at gland outside, and Stem Mut middle and upper part is provided with the outstanding circle structure of a circle; Described pressure mother set is located on Stem Mut annulus and with valve gap and is fixedly connected with by screw thread.
Also comprise handle, described handle is fixedly connected with valve rod, and handle one side is provided with socket head screw and is equipped with the mouth of carving that valve rod joint arranges.
Compared with prior art, the beneficial effect having is: the sealing that can better guarantee product with the design of tapering valve plug; Valve gap is fully isolated Sealing and High Temperature High Pressure hydraulic pressure cavity, guarantees the working state steady in a long-term of Sealing.
Accompanying drawing explanation
Fig. 1 is the structural representation of described high-temperature high-pressure needle type valve.
Wherein: 1, valve body; 2, valve rod; 3, middle head nut; 4, valve gap; 5, sealing gasket; 6, locking nut; 7, gland; 8, Stem Mut; 9, press mother; 10, socket head screw; 11, handle.
Embodiment
As shown be a kind of high-temperature high-pressure needle type valve, comprise valve body 1, valve gap 4, valve rod 2, middle head nut 3, sealing gasket 5, gland 7, Stem Mut 8, press mother 9 and handle 11, described valve body is provided with valve pocket, described valve gap is hollow structure, valve gap lower end is valve plug setting, be equipped with the linear sealing of valve body valve pocket, valve plug top is provided with the outstanding round platform setting of a circle, and round platform top is circle structure setting; Described valve rod one end is that valve point arranges, and valve rod is arranged in valve plug, and valve point is arranged in valve pocket; Described middle head nut is sheathed on valve gap circle structure and with valve body and is fixedly connected with by screw thread, is equipped with locking nut 6 on valve gap, and locking nut is reinforced locking by middle head nut; Described sealing gasket is O grommet type seal, and sealing gasket is sheathed on valve rod and is arranged in valve plug, and gasket material is polytetrafluoroethylene sealing gasket; Described valve plug sheathed with valve rod on be arranged at sealing gasket outside; Described Stem Mut sheathed with valve rod on and be arranged at gland outside, Stem Mut upper end is provided with the outstanding circle structure of a circle; Described pressure mother set is located on Stem Mut annulus and in valve gap and is fixedly connected with by screw thread; Described handle is fixedly connected with valve rod, and handle one side is provided with socket head screw and is equipped with the mouth of carving that valve rod joint arranges.
Claims (3)
1. a high-temperature high-pressure needle type valve, it is characterized in that: comprise valve body, valve gap, valve rod and middle head nut, described valve body is provided with valve pocket, described valve gap is hollow structure, valve gap lower end is valve plug setting, be equipped with valve body valve pocket, valve plug top is provided with the outstanding round platform setting of a circle, and round platform top is circle structure setting; Described valve rod one end is that valve point arranges, and valve rod is arranged in valve plug, and valve point is arranged in valve pocket; Described middle head nut is sheathed on valve gap circle structure and with valve body and is fixedly connected with by screw thread.
2. high-temperature high-pressure needle type valve as claimed in claim 1, is characterized in that: also comprise sealing gasket, gland, Stem Mut and pressure mother, described sealing gasket is sheathed on valve rod and is arranged in valve plug; Described valve plug sheathed with valve rod on be arranged at sealing gasket outside; Described Stem Mut sheathed with valve rod on and be arranged at gland outside, Stem Mut middle and upper part is provided with the outstanding circle structure of a circle; Described pressure mother set is located on Stem Mut annulus and in valve gap and is fixedly connected with by screw thread.
3. high-temperature high-pressure needle type valve as claimed in claim 2, is characterized in that: also comprise handle, described handle is fixedly connected with valve rod, and handle one side is provided with socket head screw and mouthful is equipped with carving of arranging of valve rod joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703575.0U CN203548931U (en) | 2013-11-08 | 2013-11-08 | High-temperature and high-pressure needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703575.0U CN203548931U (en) | 2013-11-08 | 2013-11-08 | High-temperature and high-pressure needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548931U true CN203548931U (en) | 2014-04-16 |
Family
ID=50467051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320703575.0U Expired - Fee Related CN203548931U (en) | 2013-11-08 | 2013-11-08 | High-temperature and high-pressure needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939620A (en) * | 2014-04-18 | 2014-07-23 | 西南石油大学 | Ultrahigh pressure high-temperature needle valve |
-
2013
- 2013-11-08 CN CN201320703575.0U patent/CN203548931U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939620A (en) * | 2014-04-18 | 2014-07-23 | 西南石油大学 | Ultrahigh pressure high-temperature needle valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203548931U (en) | High-temperature and high-pressure needle valve | |
| CN203685057U (en) | Petroleum drill rod | |
| CN203023527U (en) | Integrated pressure self-tightened zero-leakage flange gate valve | |
| CN203115279U (en) | Graphite gland packing box | |
| CN202203462U (en) | Conical ultrahigh-pressure self-sealing system | |
| CN204254022U (en) | A kind of valve cutting ferrule linkage structure | |
| CN203517054U (en) | Connection structure of inclined connection pipes of H pipes | |
| CN203548949U (en) | Pressing cap type needle valve | |
| CN102661396A (en) | Novel valve core connecting sleeve mechanism for stop valve | |
| CN203162204U (en) | Two-piece internally threaded ball valve | |
| CN203703181U (en) | Needle-shaped valve plug | |
| CN204942563U (en) | A kind of stop valve | |
| CN203336087U (en) | Clamping and sealing structure for tubular parts | |
| CN204784949U (en) | Be applied to gland of gate valve | |
| CN204592377U (en) | Face the double sealing structure of hydrogen harsh operating mode ball valve assembling valve rod auxiliary hole | |
| CN204201050U (en) | A kind of piston for cylinder | |
| CN201884421U (en) | Sealing travelling nut | |
| CN203594799U (en) | Pneumatic quick-closing valve | |
| CN204239791U (en) | Single piece type fire-proof ball valve | |
| CN202901593U (en) | Movable joint for thin-wall stainless steel pipe | |
| CN203239922U (en) | Double-conical-plug connecting, assembling and sealing structure of pump head and pressure gauge seat | |
| CN203703456U (en) | Japanese self-locking quick connector | |
| CN203051757U (en) | Riveting type fabrication hole plug | |
| CN202834563U (en) | Water distributor | |
| CN203907051U (en) | Connection type mine shaft pipeline direct connecting buckle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20171108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |