CN108757984A - From pressure seal ball valve - Google Patents
From pressure seal ball valve Download PDFInfo
- Publication number
- CN108757984A CN108757984A CN201810858756.8A CN201810858756A CN108757984A CN 108757984 A CN108757984 A CN 108757984A CN 201810858756 A CN201810858756 A CN 201810858756A CN 108757984 A CN108757984 A CN 108757984A
- Authority
- CN
- China
- Prior art keywords
- flow media
- valve
- head tank
- pressure seal
- pressure
- 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
- F16K5/06—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 spherical surfaces; Packings therefor
- F16K5/0663—Packings
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
- F16K31/055—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation for rotating valves
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
One kind is from pressure seal ball valve, including valve body, sphere, valve rod and from pressure seal, it is described to have the flow media that may make flow media to flow into from head tank from pressure seal, the flow media has outer wall from head tank, the outer wall is elastomeric element, the outer wall expands under the flow media pressure effect in flow media head tank to far from the direction inside slot, therefore sealed faying face is closer under the action of flow media pressure, the flow media ostium also from pressure seal with the upstream side for being located towards valve opening direction simultaneously, in this way in Open valve, flow media is from the flow media in head tank as the unlatching of valve is discharged into valve body to reduce pressure of the flow media from head tank, to extend valve service life.
Description
Technical field
The present invention relates to valve fields, and in particular to a kind of from pressure seal ball valve.
Background technology
There are many valve type on pipeline, and wherein ball valve is a kind of common valve, for controlling empty gas and water, steam
Etc. the cut-out of various mobility media or the size of adjusting flow, the opening and closing element of shut-off valve is the sphere being located in valve body, sphere
It is inside provided with valve chamber, the sphere is around the axis rotation perpendicular to ball valve axial direction, to realize the switch of valve.Existing ball valve master
Sphere is leaned on to seal valve chamber with valve body to realize the blocking of fluid, but due to flow media in valve with the sealing element in valve body
Often there is higher pressure, and junction of the pressure general action between sealing element and valve chamber（Referred to collectively below as seal
Faying face）, therefore excessively high flow media pressure can form centrifugation in sealed faying face, so that sealed faying face inclines
It to gap is generated, is easily penetrated into valve chamber by sealed faying face so as to cause flow media, and then influences turn-off performance.This
Outside, since sealing element and sphere are often interference fitted, there are larger pressure to lead to sphere between sphere and sealing element
There are larger frictional force between sealing element, this not only makes the switch of valve laborious, but also with valve switch number
Increase, the mutual friction between sphere and sealing element is easy to cause the abrasion of sealing element, further increases sealed faying face
Gap also leads to the decline of sealing performance, to influence the turn-off performance of valve.
Invention content
In order to overcome the shortcomings of that existing ball valve sealing faying face easily reveals flow media and sealing element is easy to wear, the present invention carries
For one kind from pressure seal ball valve, should be used from pressure seal ball valve from pressure seal gasket between sealed spheroid and valve body
Gap has preferable sealing performance and longer service life, to realize preferable shutdown effect.
The technical scheme is that：It should be provided with valve from pressure seal ball valve, including sphere, valve rod and valve body, sphere
Chamber is also equipped with from pressure seal in valve body, described to be made from pressure seal of elastic material, described from pressure seal
Flow media is equipped in place of rotary shaft inside sealing element close to sphere from head tank, the flow media has from head tank
For flow media from head tank seal section, the flow media is described from 1.2 times that the width of head tank seal section is valve chamber diameter
Extend from the flow media of pressure seal from the width of head tank in the upstream side of the flow media towards Open valve direction
A distance is to constitute flow media from head tank extended segment, and in the flow media from the direction stream of head tank extended segment
There is flow media ostium on the inner surface of dynamic medium.When the ball valve is closed, effect of the flow media in pressure
The flow media is flowed by flow media ostium down and enters flow media from head tank from head tank extended segment cocurrent.It is described
Flow media from the outer wall of head tank be elastomeric element, under flow media pressure effect of the outer wall in flow media head tank to
Far from the direction expansion inside slot, so that sealed faying face is closer under the action of flow media pressure.Work as opening valve
Men Shi squeezes flow media from the flow media in head tank since sphere rotates, and flow media is rotated with sphere by pressure
Extruding is discharged into pipeline, to reduce the pressure of sealing element and sphere, and then is reduced the frictional force of sphere and sealing element, is convenient for
It opens, and the abrasion of sphere and sealing element can be reduced, improve life of valve.
The upper end of the valve rod is equipped with knob, have on knob with the matched hole position of valve rod shape so that
Knob can be with rotating valve.
The means knob top of the ball valve is additionally provided with motor, and motor can be rotated with drive knob, to control valve
It opens and closes.
The present invention has the advantages that：Due to taking above-mentioned technical proposal, self sealss gasket to form self sealing structure,
When valve turns off, under the action of pipe fluid pressure, flow media flows into flow media by flow media ostium
From head tank, while sealing element is in the case where flowing into the pressure effect of flow media flow media from head tank, the flow media
It is expanded outward from head tank so that sealing element is closer in combination with sphere, so that sealed faying face will not be situated between because of flowing
Matter pressure and separate, effectively prevent medium to exosmosis, there is preferable sealing performance.And when opening, flow media is certainly
Flow media exhaust flow medium under sphere active force reduces frictional force, convenient for opening and extending from head tank in head tank
The service life of valve.
Description of the drawings
Attached drawing 1 is the structure sectional view of the present invention.
Attached drawing 2 is the sealing element perspective view of the present invention.
Attached drawing 3 is the sealing element B-B sectional views of the present invention.
Attached drawing 4 is the sealing element A-A sectional views of the present invention.
Sphere 1, valve body 2, valve rod 3, from pressure seal 4, knob 5, motor 6, flow media ostium 4-1, flowing be situated between
Matter is from head tank extended segment 4-3, flow media from head tank seal section 4-2.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of from pressure seal ball valve, including sphere 1, valve body 2, valve rod 3, from pressure seal 4, knob 5, electricity
Machine 6 and contact 7, the sphere 1 are connected with valve rod 3, are equipped in the valve body 2 from pressure seal 4, described close from pressure
Sealing 4 is arranged outer in the valve body 2 and positioned at sphere 1 and extend beyond the diameter of sphere.
As shown in attached drawing 2-4, it is equipped in place of the rotary shaft from pressure seal 4 inside sealing element close to sphere
Flow media is from head tank.The flow media has flow media from head tank seal section 4-2 from head tank, and the flowing is situated between
Matter is from 1.2 times that the width of head tank seal section is valve chamber diameter, and the flow media from pressure seal is from head tank
Width is extended a distance into the upstream side of the flow media towards Open valve direction to be prolonged with constituting flow media from head tank
A section 4-3 is stretched, and there is flow media from the inner surface towards flow media of head tank extended segment in the flow media
Ostium 4-1.When the ball valve is closed, the flow media is flowed by flow media ostium 4-1 under the effect of the pressure
Enter the flow media and enters flow media from head tank seal section 4-3 from head tank extended segment 4-2 cocurrents.The flow media is certainly
The outer wall of head tank is elastomeric element, to far from inside slot under flow media pressure effect of the outer wall in flow media head tank
Direction expansion so that sealed faying face is closer under the action of flow media pressure.When Open valve, due to ball
Body rotation squeezes flow media from the flow media in head tank, and flow media is discharged into as sphere is rotated by pressure extrusion
In pipeline, to reduce the pressure of sealing element and sphere, and then reduce the frictional force of sphere and sealing element, convenient for opening, and can
To reduce the abrasion of sphere and sealing element, valve service life is improved.
The upper end of the valve rod is equipped with knob, have on knob with the matched hole position of valve rod shape so that
Knob can be with rotating valve.
The means knob top of the ball valve is additionally provided with motor, and motor can be rotated with drive knob, to control valve
It opens and closes.
The present invention can improve the sealing effect between sphere and valve body, be convenient for the keying of ball valve, reduce sealing element and ball
Friction between body, and improve the service life of ball valve.
Claims (5)
1. a kind of from pressure seal ball valve, including sphere（1）, valve rod（3）And valve body（2）, valve chamber is provided in sphere, and feature exists
In：It is also equipped in valve body from pressure seal（4）, it is described to be made from pressure seal of elastic material, it is described close from pressure
Sealing is equipped in place of the rotary shaft of sphere flow media inside the sealing element from head tank, and the flow media is from head tank
With flow media from head tank seal section（4-2）, the flow media is from head tank（4-2）Seal section is for sealing valve chamber.
2. one kind is as described in claim 1 from pressure seal ball valve, it is characterised in that：The flow media has from head tank
Flow media is from head tank extended segment（4-3）.
3. one kind is as described in claim 1 from pressure seal ball valve, it is characterised in that：The flow media extends from head tank
Section（4-3）Also there is flow media ostium on towards the surface of flow media（4-1）, flow media passes through the flow media
Ostium（4-1）Into flow media from head tank.
4. one kind is as described in claim 1 from pressure seal ball valve, it is characterised in that：The upper end of the valve body, which is equipped with, to be turned
Ovable valve stem（3）Knob（5）, knob（5）With valve rod（3）It matches.
5. one kind is as described in claim 1 from pressure seal ball valve, it is characterised in that：The knob（5）It is upper to be also equipped with
Motor（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858756.8A CN108757984A (en) | 2018-07-31 | 2018-07-31 | From pressure seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858756.8A CN108757984A (en) | 2018-07-31 | 2018-07-31 | From pressure seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757984A true CN108757984A (en) | 2018-11-06 |
Family
ID=63968402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810858756.8A Pending CN108757984A (en) | 2018-07-31 | 2018-07-31 | From pressure seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757984A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983193A (en) * | 2021-08-16 | 2022-01-28 | 凯斯通阀门有限公司 | Novel ball valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145462A (en) * | 1995-09-12 | 1997-03-19 | 中国航天工业总公司第十一研究所 | Valve sealed by solid particles |
| EP1323965A1 (en) * | 2001-12-21 | 2003-07-02 | Suunnittelutoimisto A.J.A. Oy | Ball valve and its manufacturing method |
| CN202927129U (en) * | 2012-10-16 | 2013-05-08 | 天津市滨海新区塘沽诚帆阀门厂 | Floating sleeve-type soft sealing valve seat structure |
| CN203477433U (en) * | 2013-09-22 | 2014-03-12 | 浙江博恩自控阀门有限公司 | Valve seat mechanism of fixed ball valve |
| CN103968102A (en) * | 2014-04-22 | 2014-08-06 | 章华 | Ball valve metal valve seat with elastic compensation function and pressure auxiliary sealing function |
-
2018
- 2018-07-31 CN CN201810858756.8A patent/CN108757984A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145462A (en) * | 1995-09-12 | 1997-03-19 | 中国航天工业总公司第十一研究所 | Valve sealed by solid particles |
| EP1323965A1 (en) * | 2001-12-21 | 2003-07-02 | Suunnittelutoimisto A.J.A. Oy | Ball valve and its manufacturing method |
| CN202927129U (en) * | 2012-10-16 | 2013-05-08 | 天津市滨海新区塘沽诚帆阀门厂 | Floating sleeve-type soft sealing valve seat structure |
| CN203477433U (en) * | 2013-09-22 | 2014-03-12 | 浙江博恩自控阀门有限公司 | Valve seat mechanism of fixed ball valve |
| CN103968102A (en) * | 2014-04-22 | 2014-08-06 | 章华 | Ball valve metal valve seat with elastic compensation function and pressure auxiliary sealing function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983193A (en) * | 2021-08-16 | 2022-01-28 | 凯斯通阀门有限公司 | Novel ball valve |
| CN113983193B (en) * | 2021-08-16 | 2023-10-24 | 凯斯通阀门有限公司 | Novel ball valve |
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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: 20181106 |