CN107859754A - Plug valve - Google Patents
Plug valve Download PDFInfo
- Publication number
- CN107859754A CN107859754A CN201711330554.8A CN201711330554A CN107859754A CN 107859754 A CN107859754 A CN 107859754A CN 201711330554 A CN201711330554 A CN 201711330554A CN 107859754 A CN107859754 A CN 107859754A
- Authority
- CN
- China
- Prior art keywords
- valve body
- cock
- sealing
- valve
- arcs
- 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
- F16K5/04—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 cylindrical surfaces; Packings therefor
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- 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
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- 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
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/18—Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces
- F16K5/181—Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces with the housing or parts of the housing mechanically pressing the seals against the plugs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a kind of plug valve, including：Valve body and the cock being arranged in valve body, the upper end of the cock is connected with valve rod, the upper end of the valve rod is stretched out valve body and is connected with handwheel, the lower end of the cock is rotatablely connected by bearing pin and bottom, the bottom is threadedly coupled with the lower end of valve body, sealing arcs are provided between the valve body and cock, first conical surface is provided with the outside of the sealing arcs, second conical surface to be cooperated with first conical surface is provided with the valve body, the lower end of the sealing arcs is rotatably arranged on bottom by swivel becket, intake channel and exit passageway are provided with the valve body, the import interface channel being interconnected with intake channel is provided with close to the side of intake channel in the sealing arcs, the outlet interface channel being interconnected with exit passageway is provided with close to the side of exit passageway in the sealing arcs.
Description
Technical field
The present invention relates to a kind of petroleum machinery, more particularly to a kind of plug valve.
Background technology
In petroleum recovery operations, plug valve is widely used in the control of pipeline.It is close in the plug valve used at present
For envelope arcs generally using structure is faced directly, its sealing property is poor, can only integrally more once sealing compensation can not be carried out by leakage occur
Change, service life is short, and replacing construction is long, cost is high, during production of hydrocarbons, brings inconvenience to operation people, reduces
Production efficiency.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of sealing compensation performance good plug valve.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：Plug valve, including：Valve body and it is arranged on
Cock in valve body, the upper end of the cock are connected with valve rod, and the upper end of the valve rod is stretched out valve body and is connected with handwheel, institute
The lower end of cock is stated to be rotatablely connected by bearing pin and bottom, the bottom be threadedly coupled with the lower end of valve body, in the valve body and
Sealing arcs are provided between cock, first conical surface is provided with the outside of the sealing arcs, is provided with the valve body
Second conical surface to be cooperated with first conical surface, the lower end of the sealing arcs is rotatablely connected by swivel becket and bottom, in institute
State and intake channel and exit passageway are provided with valve body, be provided with the sealing arcs close to the side of intake channel and import
The interconnected import interface channel of passage, it is provided with and exit passageway phase close to the side of exit passageway in the sealing arcs
Intercommunicated outlet interface channel, it is provided with what is be interconnected with import interface channel and outlet interface channel in the cock
Lumen passage, sealing ring is provided between the sealing arcs of the lumen passage upper end and valve body, in the lumen passage
Lower seal is provided between the sealing arcs and valve body of lower end, sealing gasket is provided between the valve rod and valve body,
Lower seal pad is provided between the cock of the lumen passage lower end and bottom.
It is an advantage of the invention that：Above-mentioned plug valve, structure is novel, and original face directly is replaced using conical surface seal arcs structure
Arcs structure is sealed, while upper-lower seal circle is placed on valve body, once there is leakage and can incited somebody to action in sealing arcs generation abrasion
Bottom precession, gap that can be between effective compensation sealing arcs and valve body in the presence of the conical surface so that valve has remained
Sealing state is imitated, the service life of valve is extended, reduces replacement cost, it is easy to operate, improve production efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of plug valve of the present invention.
Fig. 2 is the mplifying structure schematic diagram that arcs are sealed in Fig. 1.
In figure：1st, valve body, 2, cock, 3, valve rod, 4, handwheel, 5, bearing pin, 6, bottom, 7, sealing arcs, 8, first conical surface,
9th, second conical surface, 10, swivel becket, 11, intake channel, 12, exit passageway, 13, import interface channel, 14, outlet interface channel,
15th, lumen passage, 16, upper sealing ring, 17, lower seal, 18, upper sealing gasket, 19, lower seal pad.
Embodiment
The particular content of the present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, plug valve, including：Valve body 1 and the cock 2 being arranged in valve body 1, the upper end of the cock 2
It is connected with valve rod 3, the upper end of the valve rod 3 is stretched out valve body 1 and is connected with handwheel 4, and the lower end of the cock 2 passes through bearing pin 5
It is rotatablely connected with bottom 6, the bottom 3 is threadedly coupled with the lower end of valve body 1, is provided between the valve body 1 and cock 2 close
Arcs 7 are sealed, the outside of the sealing arcs 7 is provided with first conical surface 8, is provided with the valve body 1 and the phase of first conical surface 8
Second conical surface 9 mutually coordinated, the lower end of the sealing arcs 7 is rotatablely connected by swivel becket 10 and bottom 6, in the valve body 1
Intake channel 11 and exit passageway 12 are inside provided with, is provided with and enters close to the side of intake channel 11 in the sealing arcs 7
The interconnected import interface channel 13 of mouthful passage 11, the sealing arcs 7 close to the side of exit passageway 12 be provided with
The interconnected outlet interface channel 14 of exit passageway 12, it is provided with the cock 2 and import interface channel 13 and outlet
The interconnected lumen passage 15 of interface channel 14, is set between the sealing arcs 7 of the upper end of lumen passage 15 and valve body 1
There is upper sealing ring 16, lower seal 17 is provided between the sealing arcs 7 of the lower end of lumen passage 15 and valve body 1, in institute
State and sealing gasket 18 is provided between valve rod 3 and valve body 1, set between the cock 2 of the lower end of lumen passage 15 and bottom 6
There is lower seal pad 19.
In use, rotating handwheel 4, handwheel 4 rotates above-mentioned plug valve with ovable valve stem 3, and valve rod 3 drives cock 2 to rotate up to
Lumen passage 15 is interconnected with import interface channel 13 and outlet interface channel 14, and now valve is opened, and handwheel rotates again
90 degree, valve is closed.
When above-mentioned plug valve carries out sealing regulation, due to being threadedly coupled between bottom 6 and valve body 1, bottom 6, bottom 6 are rotated
Moved up in valve body 1 and drive cock 2 and sealing arcs 7 while move up, at the same time, bottom 6 is being revolved by bearing pin 5
Rotated on plug 2, bottom 6 rotates around swivel becket 10, and sealing arcs 7, which move up, drives first conical surface 8 in outside to moving up
It is dynamic to be offseted with second conical surface 9 in valve body 1, wearing clearance is eliminated, realizes sealing compensation.
Above-mentioned plug valve, structure is novel, replaces original facing directly to seal arcs structure using conical surface seal arcs structure, together
When upper-lower seal circle is placed on valve body, once sealing arcs occur abrasion there is leakage can be by bottom precession, in the conical surface
In the presence of can effective compensation sealing arcs and valve body between gap so that valve remains effective sealing state, extend
The service life of valve, reduces replacement cost, easy to operate, improves production efficiency.
Claims (1)
1. plug valve, it is characterised in that：Including：Valve body（1）Be arranged on valve body（1）Interior cock（2）, the cock（2）'s
Upper end and valve rod（3）It is connected, the valve rod（3）Upper end stretch out valve body（1）With handwheel（4）It is connected, the cock（2）'s
Lower end passes through bearing pin（5）With bottom（6）Rotation connection, the bottom（3）With valve body（1）Lower end threaded connection, in the valve
Body（1）With cock（2）Between be provided with sealing arcs（7）, in the sealing arcs（7）Outside be provided with first conical surface（8）,
In the valve body（1）Inside it is provided with and first conical surface（8）Second conical surface to cooperate（9）, the sealing arcs（7）Lower end
Pass through swivel becket（10）With bottom（6）Rotation connection, in the valve body（1）Inside it is provided with intake channel（11）And exit passageway
（12）, in the sealing arcs（7）Close to intake channel（11）Side be provided with and intake channel（11）Interconnected enters
Mouth interface channel（13）, in the sealing arcs（7）Close to exit passageway（12）Side be provided with and exit passageway（12）Phase
Intercommunicated outlet interface channel（14）, in the cock（2）Inside it is provided with and import interface channel（13）It is logical with outlet connection
Road（14）Interconnected lumen passage（15）, in the lumen passage（15）The sealing arcs of upper end（7）With valve body（1）Between
It is provided with sealing ring（16）, in the lumen passage（15）The sealing arcs of lower end（7）With valve body（1）Between be provided with down it is close
Seal（17）, in the valve rod（3）With valve body（1）Between be provided with sealing gasket（18）, in the lumen passage（15）Lower end
Cock（2）With bottom（6）Between be provided with lower seal pad（19）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711330554.8A CN107859754A (en) | 2017-12-13 | 2017-12-13 | Plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711330554.8A CN107859754A (en) | 2017-12-13 | 2017-12-13 | Plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107859754A true CN107859754A (en) | 2018-03-30 |
Family
ID=61705988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711330554.8A Pending CN107859754A (en) | 2017-12-13 | 2017-12-13 | Plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107859754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442058A (en) * | 2019-01-10 | 2019-03-08 | 中石化四机石油机械有限公司 | A kind of high voltagehigh frequency time switch taper adjustable sealing structure plug valve |
| CN111577917A (en) * | 2020-06-02 | 2020-08-25 | 葛兴明 | Pipeline plug valve for chemical industry |
-
2017
- 2017-12-13 CN CN201711330554.8A patent/CN107859754A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442058A (en) * | 2019-01-10 | 2019-03-08 | 中石化四机石油机械有限公司 | A kind of high voltagehigh frequency time switch taper adjustable sealing structure plug valve |
| CN111577917A (en) * | 2020-06-02 | 2020-08-25 | 葛兴明 | Pipeline plug valve for chemical industry |
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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 |