CN106870758A - A kind of low leakage double-wedge type bivalve ball valve - Google Patents
A kind of low leakage double-wedge type bivalve ball valve Download PDFInfo
- Publication number
- CN106870758A CN106870758A CN201710214968.8A CN201710214968A CN106870758A CN 106870758 A CN106870758 A CN 106870758A CN 201710214968 A CN201710214968 A CN 201710214968A CN 106870758 A CN106870758 A CN 106870758A
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- CN
- China
- Prior art keywords
- valve body
- valve
- ball
- spheroid
- low leakage
- 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.)
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Classifications
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
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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
- F16K5/06—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
- F16K5/0605—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 with particular plug arrangements, e.g. particular shape or built-in means
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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
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses the low leakage double-wedge type bivalve ball valve of one kind, including valve body, valve body lower section is provided with valve seat, valve body top is installed by lower seal pad piece, lower seal pad piece top is provided with valve body lower carriage, valve body lower carriage top is provided with spheroid, spheroid top is provided with valve body upper bracket, spheroid left side is provided with left ball clack, spheroid right side is provided with right ball clack, right ball clack right side is provided with right claw type and draws cap, left ball clack right side is provided with left claw type and draws cap, valve body upper bracket top is provided with gasket seal, upper gasket seal top is provided with valve body geometrical clamp, valve body geometrical clamp is fixedly installed valve rod, stem internal is provided with gas sensor, valve rod side is provided with handwheel, valve rod top is provided with pilot pin.The situation of air pressure is checked by gas sensor, ball valve of the present invention becomes low leakage, and tightness is very outstanding, and gas sensor can check barometric information, check whether there is the phenomenon of gas leakage, unusual hommization.
Description
Technical field
The present invention relates to extra large work and ship domain, specially a kind of low leakage double-wedge type bivalve ball valve.
Background technology
Current ball valve has been widely used in the fields such as oil, chemical industry, metallurgy, electric power, light industry, pharmacy.Bracing type ball
Valve is widely used with the superiority of its own, and it is developed according to the sealing principle of ball valve and gate valve, and it has circulation
Area is big, flow resistance is small, self-locking good anti-vibration, high temperature resistant, it is high pressure resistant the advantages of, but present most distraction-type ball valves are being opened
Easily there is wear phenomenon with during closing, shorten the service life of distraction-type ball valve, distraction-type ball valve is in certain journey
The opening and closing of valve can be realized on degree without wear phenomenon, but be stationarily connected to the alignment pin on bonnet being directly connected to
In helicla flute on valve rod, alignment pin easily weares and teares helicla flute, so as to the situation for being driven failure occur.And existing ball valve warp
Often there is the phenomenon of leakage, and this phenomenon is very serious, it is impossible to due income is brought, so people can not be met
Demand.
The content of the invention
It is an object of the invention to provide the low leakage double-wedge type bivalve ball valve of one kind, to solve to be proposed in above-mentioned background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：A kind of low leakage double-wedge type bivalve ball valve, including valve
Body, the valve body lower section is provided with valve seat, tells that valve body top is provided with lower seal pad piece, and the lower seal pad piece top is set
There is valve body lower carriage, the valve body lower carriage top is provided with spheroid, and the spheroid top is provided with valve body upper bracket, the ball
Body left side is provided with left ball clack, and the spheroid right side is provided with right ball clack, and the right ball clack right side is provided with right claw type and draws cap, institute
State left ball clack right side and be provided with left claw type drawing cap, the valve body upper bracket top is provided with gasket seal, the upper sealing gasket
Piece top is provided with valve body geometrical clamp, and the valve body geometrical clamp is fixedly installed valve rod, and the stem internal is provided with gas biography
Sensor, the valve rod side is provided with handwheel, and the valve rod top is provided with pilot pin.
Preferably, the sealing center of circle is provided with above the upper gasket seal, the gas sensor can measure air pressure simultaneously
And alarmed, it is ensured that the safe and efficient property of device.
Preferably, the left ball clack carries the claw type stretched out with right ball clack and draws cap, and claw type draws cap two ends to be located under two ball clacks
End, upper bit and lower portion between two ball clacks are open upper conical space and inferior pyramidal space.
Preferably, the spheroid is rotated with valve body and is connected, it is possible to reduce friction, improves the service life of ball valve.
Preferably, being set above the lower seal pad piece and lower seal pad piece has sealing nut, makes sealing effectiveness more preferably,
Improve operating efficiency.
Compared with prior art, the beneficial effects of the invention are as follows：It is an object of the invention to overcome the shortcomings of above-mentioned technology
Part, there is provided a kind of obstructed overwinding passes and applies the method for external force and switch spheroid, and avoid and reduces local pressure with rub sassafras and
A kind of double-wedge type bivalve Ball valve of abrasion, can only translate or rotary motion in a horizontal space with wedge-type cone, keep away
Exempt from the friction between sphere flap and valve body sealing surface, improve the service life of ball valve.And can be by gas sensing
Device checks the situation of air pressure, employs the sealing center of circle and the sealing nut of two gasket seals so that ball valve of the present invention becomes
Low leakage, tightness is very outstanding, and gas sensor can check barometric information, checks whether there is the phenomenon of gas leakage, non-
Normal hommization.It is rotatable between sphere flap and valve body sealing surface, friction is reduced, the service life of ball valve is improve, together
When gas sensor can detect gas gas leakage situation feedback give people, improve operating efficiency.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is partial structural diagram of the present invention.
In figure：1- pilot pins；2- valve rods；3- handwheels；4- gas sensors；The upper gasket seals of 5-；6- valve body upper brackets；7- is right
Ball clack；The right claw type of 8- draws cap；9- valve body lower carriages；10- lower seal pad pieces；11- valve bodies；12- valve seats；13- spheroids；14- left claws
Type draws cap；The left ball clacks of 15-；16- valve body geometrical clamps；17- seals the center of circle；18- sealing nuts.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-2 is referred to, the present invention provides a kind of technical scheme：A kind of low leakage double-wedge type bivalve ball valve, including valve body
11, the lower section of valve body 11 is provided with valve seat 12, and the top of valve body 11 is provided with lower seal pad piece 10, and the top of lower seal pad piece 10 is provided with
Valve body lower carriage 9, the top of valve body lower carriage 9 is provided with spheroid 13, and the top of spheroid 13 is provided with valve body upper bracket 6, and spheroid 13 is left
Side is provided with left ball clack 15, and the right side of spheroid 13 is provided with right ball clack 7, and the right side of right ball clack 7 is provided with right claw type and draws cap 8, left ball clack
15 right sides are provided with left claw type and draw cap 14, and the top of valve body upper bracket 6 is provided with gasket seal 5, and the top of upper gasket seal 5 is set
There is valve body geometrical clamp 16, valve body geometrical clamp 16 is fixedly installed valve rod 2, and valve rod 2 is internally provided with gas sensor 4, the side of valve rod 2
Face is provided with handwheel 3, and valve rod top is provided with pilot pin 1, and upper gasket seal 5 and lower seal pad piece 10 are provided with sealing circle above
The heart 17, gas sensor 4 can measure air pressure and be alarmed, and left ball clack 15 carries the claw type stretched out with right ball clack 7 and draws cap,
Claw type draws cap two ends to be located at two ball clack lower ends, and upper bit and lower portion between two ball clacks are open upper conical space with
Cone space, spheroid 13 is rotated with valve body 11 and is connected, and sealing nut 18 is provided with above lower seal pad piece.
Operation principle：Ball valve is first turned on, when the ball valve is opened, twisting handwheel is first carried in the guide groove guiding valve rod 2 of L-shaped
Spheroid is risen, two ball clacks is loosened and is departed from from the corresponding sealing surface of valve seat 12, and after conducting before and after valve, upstream pressure PA and valve
Pressure PB pressure differences are approached, and ball clack is almost without lateral pressure.When pilot pin 1 is arrived in the level trough lifting of gathering sill towards the lower end of valve rod
Position, rotate handwheel will be with ovable valve stem and upper wedge spheroid upper end pin rotate so that drive two ball clacks rotate, make two ball clacks it
Between the corresponding opening of valve seat 12 of passage and both sides turn on.When valve rod 2 rotates, spheroid and two ball clack synchronous axial systems, also realize
The synchronous function that two ball clack spreadings are reduced of spheroid.So when the lower end of spheroid is by valve body 11, direction of rotation and valve rod 2
When screw thread is conversely connected with valve body 11, the process of rotation also declines spheroid, two ball clacks is more departed from valve seat 12.Two ball clacks
Rotation process more significantly reduces unlatching moment of torsion, also greatly reduces sealing surface and sphere abrasion.When valve to be closed, opposite direction
Handwheel is rotated, the band ball clack of ovable valve stem 2 and two and spheroid are turned round, and two ball clacks of loosening are turned back to the position with breaking-out, also will not be with
Friction is produced between the correspondence sealing surface of valve seat 12.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (5)
1. a kind of low leakage double-wedge type bivalve ball valve, including valve body（11）, the valve body（11）Lower section is provided with valve seat（12）, institute
Tell valve body（11）Top is provided with lower seal pad piece（10）, the lower seal pad piece（10）Top is provided with valve body lower carriage（9）,
The valve body lower carriage（9）Top is provided with spheroid（13）, the spheroid（13）Top is provided with valve body upper bracket（6）, it is described
Spheroid（13）Left side is provided with left ball clack（15）, the spheroid（13）Right side is provided with right ball clack（7）, it is characterised in that：It is described
Right ball clack（7）Right side is provided with right claw type and draws cap（8）, the left ball clack（15）Right side is provided with left claw type and draws cap（14）, it is described
Valve body upper bracket（6）Top is provided with gasket seal（5）, the upper gasket seal（5）Top is provided with valve body geometrical clamp
（16）, the valve body geometrical clamp（16）It is fixedly installed valve rod（2）, the valve rod（2）It is internally provided with gas sensor（4）,
The valve rod（2）Side is provided with handwheel（3）, the valve rod top is provided with pilot pin（1）.
2. one kind according to claim 1 it is low leakage double-wedge type bivalve ball valve, it is characterised in that：The upper gasket seal
（5）With lower seal pad piece（10）The sealing center of circle is provided with above（17）.
3. one kind according to claim 1 it is low leakage double-wedge type bivalve ball valve, it is characterised in that：The left ball clack（15）With
The right ball clack（7）Cap is drawn with the claw type stretched out, claw type draws cap two ends to be located at two ball clack lower ends, the top between two ball clacks
Position and lower portion are open upper conical space and inferior pyramidal space.
4. one kind according to claim 1 it is low leakage double-wedge type bivalve ball valve, it is characterised in that：The spheroid（13）With valve
Body（11）Rotate connection.
5. one kind according to claim 1 it is low leakage double-wedge type bivalve ball valve, it is characterised in that：The lower seal pad piece
（10）Sealing nut is provided with above（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214968.8A CN106870758A (en) | 2017-04-02 | 2017-04-02 | A kind of low leakage double-wedge type bivalve ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214968.8A CN106870758A (en) | 2017-04-02 | 2017-04-02 | A kind of low leakage double-wedge type bivalve ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106870758A true CN106870758A (en) | 2017-06-20 |
Family
ID=59160653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710214968.8A Withdrawn CN106870758A (en) | 2017-04-02 | 2017-04-02 | A kind of low leakage double-wedge type bivalve ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106870758A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963570A (en) * | 2021-02-20 | 2021-06-15 | 东莞海特帕沃液压科技有限公司 | Anti-scouring ball valve |
| CN113510087A (en) * | 2021-05-13 | 2021-10-19 | 江苏师范大学科文学院 | Abnormal distinguishing type manipulator for automatic production |
-
2017
- 2017-04-02 CN CN201710214968.8A patent/CN106870758A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963570A (en) * | 2021-02-20 | 2021-06-15 | 东莞海特帕沃液压科技有限公司 | Anti-scouring ball valve |
| CN113510087A (en) * | 2021-05-13 | 2021-10-19 | 江苏师范大学科文学院 | Abnormal distinguishing type manipulator for automatic production |
| CN113510087B (en) * | 2021-05-13 | 2022-09-13 | 江苏师范大学科文学院 | Abnormity discrimination mechanical arm for automatic production |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170620 |
|
| WW01 | Invention patent application withdrawn after publication |