CN109268524A - A kind of plug valve of adjustable valve base sealing - Google Patents
A kind of plug valve of adjustable valve base sealing Download PDFInfo
- Publication number
- CN109268524A CN109268524A CN201811194843.4A CN201811194843A CN109268524A CN 109268524 A CN109268524 A CN 109268524A CN 201811194843 A CN201811194843 A CN 201811194843A CN 109268524 A CN109268524 A CN 109268524A
- Authority
- CN
- China
- Prior art keywords
- valve
- cock body
- plug
- valve seat
- adjustable
- 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
Links
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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0257—Packings
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/062—Construction of housing; Use of materials therefor of taps or cocks with conical plugs
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of plug valves of adjustable valve base sealing, including valve body, the valve rod being rotationally connected on valve body, stem bottom is fixedly connected with cock body, valve seat is symmetrically connected between the valve body and cock body, valve seat and cock body contact surface are semilune.Compared with prior art, the beneficial effects of the present invention are: the present invention can seal under high temperature, high pressure operating condition, and will not be dead there is a situation where blocking wedge, reliable design, coincidence reason are worthy to be popularized.
Description
Technical field
The present invention relates to a kind of plug valve, the plug valve of specifically a kind of adjustable valve base sealing.
Background technique
Plug valve is widely used in oilfield exploitation, conveying and concise equipment, petrochemical industry, coal gas, natural gas, liquefaction
In oil gas, HVAC industry and general industry.Secondly plug valve applies also for conveying the liquid containing suspended matter and particle.
Nowadays, the application range of plug valve is increasing, the Lubricated plug valve with forced feed lubrication, metallic hard occurs
Seal lifting type plug valve；The Lubricated plug valve of forced feed lubrication makes to form one layer of oil film between plug and the sealing surface of cock body.This
Sample sealing performance is more preferable, and opening and closing is laborsaving, and sealing surface is prevented to be damaged, but by temperature limiting；It is not suitable for high-temperature medium；Gold
Cock is first promoted when belonging to hard sealing lifting type plug valve opening and closing, cock is made to be separated with sealing surface of seat, then 90 ° of rotation rotations
Plug, makes valve opening or closing.Since cock is separated with valve seat valve in opening-closing process, therefore the opening and closing of valve is very light
Pine, and sealing surface is not easy to abrade during opening or closing, but it is dead to be easy to block wedge when high temperature, is easy leakage；It is adjustable
The plug valve of section valve base sealing solves sealing pair and blocks the dead phenomenon of wedge.
Those skilled in the art propose a kind of plug valve of adjustable valve base sealing thus, to solve to mention in above-mentioned background
Out the problem of.
Summary of the invention
The purpose of the present invention is to provide a kind of plug valves of adjustable valve base sealing, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of plug valve of adjustable valve base sealing, including valve body, the valve rod being rotationally connected on valve body, valve
Bar bottom is fixedly connected with cock body, and valve seat is symmetrically connected between the valve body and cock body, and valve seat is contacted with cock body
Face is semilune.
As a further solution of the present invention: the valve seat outside screw is connected with adjusting nut, and adjusting nut outside is solid
Surely it is connected with spring base, is fixedly connected with preloading spring on the inside of spring base.
As further scheme of the invention: passing through O-ring between the valve seat and valve body and be tightly connected.
As further scheme of the invention: the cock body is cone.
Compared with prior art, the beneficial effects of the present invention are: the present invention can seal under high temperature, high pressure operating condition, and
Will not be dead there is a situation where blocking wedge, reliable design, coincidence reason are worthy to be popularized.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of the plug valve of adjustable valve base sealing；
Fig. 2 is semilune valve seat construction in figure one.
In figure: 1- send out door body, 2- adjusting nut, 3- preloading spring, 4- spring base, 5- valve seat, 6- cock body, 7-O type circle,
8- valve rod.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
A kind of plug valve of adjustable valve base sealing referring to FIG. 1-2, including valve body 1, are rotationally connected with valve sheet
Valve rod 8 on body 1,8 bottom of valve rod are fixedly connected with cock body 6, are symmetrically connected between the valve body 1 and cock body 6
Valve seat 5, valve seat 5 and 6 contact surface of cock body are semilune.
5 outside screw of valve seat is connected with adjusting nut 2, and spring base 4, spring are fixedly connected on the outside of adjusting nut 2
4 inside of seat is fixedly connected with preloading spring 3.
It is tightly connected between the valve seat 5 and valve body 1 by O-ring 7.
The cock body 6 is cone.
Illustrate: 1. for 6 close fitting seal of cock body with cone, and seat design is semilune, such valve seat
Close, the favorable sealing property with the fitting of cock body sealing surface；2. it is enough that 5 tail end of valve seat setting early warning spring 3 guarantees that sealing surface has
Pretightning force, valve in use sealing surface wear when, act on lower valve in early warning spring 3 and guarantee good sealing performance；
3. 5 one end of semilune valve seat is protruded into the valve body 1, the other end and the cock body 6 are formed and are tightly connected；Spring base 4 exists
On half selenodont valve seat 5 circle, between valve body 1 and adjusting nut 2, spring base 4 is moved out by adjusting nut 2
It is dynamic, the pretightning force of early warning spring 3 is discharged, semilune valve seat 5 moves backward at this time, the space of assembly cock body 6 is reserved, cock body
6 are packed into valve body 1；Adjusting the compression early warning spring 3 of adjusting nut 2 makes it generate pretightning force to valve seat 5, reaches the effect of sealing
Fruit；4. being equipped with 7 circle of O shape sealing in 5 sealing surface end face of valve seat, solves 5 sealing surface back side leakage problem of valve seat.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (3)
1. a kind of plug valve of adjustable valve base sealing, including valve body (1), the valve being rotationally connected on valve body (1)
Bar (8), valve rod (8) bottom are fixedly connected with cock body (6), which is characterized in that left between the valve body (1) and cock body (6)
The right side is symmetrically connected with valve seat (5), and valve seat (5) and cock body (6) contact surface are semilune, and valve seat (5) outside screw is connected with
Adjusting nut (2) is tightly connected between the valve seat (5) and valve body (1) by O-ring (7).
2. a kind of plug valve of adjustable valve base sealing according to claim 1, which is characterized in that the adjusting nut
(2) outside is fixedly connected with spring base (4), is fixedly connected with preloading spring (3) on the inside of spring base (4).
3. a kind of plug valve of adjustable valve base sealing according to claim 2, which is characterized in that the cock body (6) is
Cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811194843.4A CN109268524A (en) | 2018-10-15 | 2018-10-15 | A kind of plug valve of adjustable valve base sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811194843.4A CN109268524A (en) | 2018-10-15 | 2018-10-15 | A kind of plug valve of adjustable valve base sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109268524A true CN109268524A (en) | 2019-01-25 |
Family
ID=65196010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811194843.4A Pending CN109268524A (en) | 2018-10-15 | 2018-10-15 | A kind of plug valve of adjustable valve base sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109268524A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5727771A (en) * | 1996-07-29 | 1998-03-17 | Chang-Hong; Ahn | Fluid opening and closing valve |
| CN104265931A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Flexible sealing plug valve with filter screen |
| CN105003682A (en) * | 2015-07-30 | 2015-10-28 | 盐城市大冈石油工具厂有限责任公司 | Pressure-regulating self-opened plug valve |
| CN205013738U (en) * | 2015-09-08 | 2016-02-03 | 江苏沃圣阀业有限公司 | Upper assembling type fixes ball ball valve |
| CN205663912U (en) * | 2016-05-04 | 2016-10-26 | 洪宝玉 | Improved generation is from seal valve |
| CN206246712U (en) * | 2016-12-19 | 2017-06-13 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | A kind of floating seal high-pressure manifold plug valve |
| CN209100686U (en) * | 2018-10-15 | 2019-07-12 | 兰州高压阀门有限公司 | A kind of plug valve of adjustable valve base sealing |
-
2018
- 2018-10-15 CN CN201811194843.4A patent/CN109268524A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5727771A (en) * | 1996-07-29 | 1998-03-17 | Chang-Hong; Ahn | Fluid opening and closing valve |
| CN104265931A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Flexible sealing plug valve with filter screen |
| CN105003682A (en) * | 2015-07-30 | 2015-10-28 | 盐城市大冈石油工具厂有限责任公司 | Pressure-regulating self-opened plug valve |
| CN205013738U (en) * | 2015-09-08 | 2016-02-03 | 江苏沃圣阀业有限公司 | Upper assembling type fixes ball ball valve |
| CN205663912U (en) * | 2016-05-04 | 2016-10-26 | 洪宝玉 | Improved generation is from seal valve |
| CN206246712U (en) * | 2016-12-19 | 2017-06-13 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | A kind of floating seal high-pressure manifold plug valve |
| CN209100686U (en) * | 2018-10-15 | 2019-07-12 | 兰州高压阀门有限公司 | A kind of plug valve of adjustable valve base sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |