CN109958791A - A kind of double-eccentric ball valve - Google Patents
A kind of double-eccentric ball valve Download PDFInfo
- Publication number
- CN109958791A CN109958791A CN201711426205.6A CN201711426205A CN109958791A CN 109958791 A CN109958791 A CN 109958791A CN 201711426205 A CN201711426205 A CN 201711426205A CN 109958791 A CN109958791 A CN 109958791A
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- CN
- China
- Prior art keywords
- valve
- ball
- matching
- valve rod
- double
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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
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention provides a kind of double-eccentric ball valve, it include: valve ball, valve body, the first valve road, the second valve road, third valve road and valve rod, when double-eccentric ball valve is in the open state, first valve road, third valve road and the second valve road are in connected state, medium can circulate, and the medium for avoiding valve rod receiving is washed away and corroded；When double-eccentric ball valve is in close state, the first seal and the second seal on valve body are sealed with the first valve road and the second valve road respectively, realize two way seal, sealing performance is higher.
Description
Technical field
The present invention relates to valve manufacture fields, more particularly to a kind of double-eccentric ball valve.
Background technique
Ball valve is mainly used to make the flow direction for cutting off, distributing and changing medium in pipeline, it is only needed with rotation behaviour
Make and the rotating torque of very little can close tightly, therefore ball valve optimum switchs, stop valve uses.Eccentric ball valve is as ball
One kind of valve also has relatively broad application.Under normal conditions, eccentric ball valve is side-mounted structure and valve rod is integral design,
Eccentric ball valve is one-way sealing, is difficult to play good sealing effect in the case where High Pressure Difference, one-way sealing eccentric ball valve
Installation direction is single, and applicability is lower；And valve rod is placed among runner when valve opening, when containing particle in medium to valve
Washing away for bar is serious, since valve rod is constantly among runner, influences the flow of medium, when carrying out valve cleaning, pipe cleaner
Hand scarf valve cavity can not be can not achieve by runner, it therefore, need to be from pipeline by eccentric ball valve entirety when maintenance
It removes, when safeguarding heavy caliber eccentric ball valve, dismounting is more difficult.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of double-eccentric ball valves, for solving
Certainly in the prior art eccentric ball valve one-way sealing when sealing performance is low, installation direction is single and applicability is low problem.
In order to achieve the above objects and other related objects, the present invention provides a kind of double-eccentric ball valve, comprising: valve ball, valve body,
First valve road, the second valve road and valve rod, the valve ball and the valve rod are set in the valve body, and the valve ball includes first
Matching body and the second matching body, first valve road include primary sealing area and secondary sealing area, and second valve road includes the
Three sealing surfaces and the 4th sealing surface, first matching body include the first matching face and the second matching face, second matching body
Face and the 4th matching face are matched including third, first matching face is greater than second matching at a distance from the valve rod axis
Face at a distance from the valve rod axis, third matching face be less than with the valve rod axis at a distance from the 4th matching face and
The distance of the valve rod axis, first matching face matchs with the primary sealing area, and described second matches face and described the
The matching of two sealing surfaces, third matching face are matched with the third sealing surface, the 4th matching face and the 4th sealing
Face matching.
Optionally, the valve rod includes the first valve rod and the second valve rod, and the valve ball has the guide groove for guiding, institute
It states the first valve rod to be fixedly connected with the valve ball and be used to that the valve ball to be driven to rotate, second valve rod is fixed on the valve body
On, and second valve rod matches with the guide groove.
Optionally, the double-eccentric ball valve further includes being used to provide power actuator, the actuator and first valve
Bar connects and first valve rod is driven to rotate.
Optionally, the valve for assembling valve rod and valve ball is equipped in valve body position corresponding with first valve rod
Lid, the valve deck have valve cover hole, and first valve rod is connect through the valve cover hole with the valve ball.
Optionally, the axle sleeve for guiding is equipped in the guide groove, the axle sleeve matches with second valve rod.
Optionally, the valve ball further includes the third valve road for circulation medium.
Optionally, the diameter of first valve road, second valve road and the third valve road is identical.
As described above, double-eccentric ball valve of the invention, has the advantages that
1, there are two sealing surface, i.e. primary sealing area and secondary sealing area, first sealings for the double-eccentric ball valve tool
Face matches with the first valve road, and the secondary sealing area matches with second valve road, improves sealing performance, installation direction
It is not limited by the flow direction of medium, improves the applicability of installation；
2, the distance of valve rod axis described in plan range where first matching face is greater than where second matching face
The distance of valve rod axis described in plan range, the distance that the third matches valve rod axis described in the plan range of face place are less than institute
The distance of valve rod axis described in plan range where stating the 4th matching face, when the first matching face and primary sealing area sealing, second
Matching face and secondary sealing area seal, third match that face is sealed with third sealing surface and the 4th matches face and the 4th sealing surface is close
Feng Shi, the double-eccentric ball valve can be sealed firmly, and meeting sealing force is increasing；
3, the valve ball is equipped with the third valve road for circulation medium, and valve rod is split-type design, and the first valve rod is used
In transfer motion power and the valve ball is driven to rotate, the second valve rod is rotated for being oriented to valve ball, it avoids during flow of media,
Particle washing away and corroding to valve rod in medium and medium, and avoid the case where valve rod reduces rate-of flow generation.
Detailed description of the invention
Fig. 1 is shown as the double-eccentric ball valve structural schematic diagram of the embodiment of the present invention.
Fig. 2 is shown as the double-eccentric ball valve cross-sectional plan view structural schematic diagram of the embodiment of the present invention.
Piece mark explanation
1 valve ball
11 first matching bodies
111 first matching faces
112 second matching faces
12 second matching bodies
121 thirds match face
122 the 4th matching faces
13 third valve roads
14 guide grooves
2 valve bodies
3 first valve roads
31 primary sealing areas
32 secondary sealing areas
4 second valve roads
41 third sealing surfaces
42 the 4th sealing surfaces
51 first valve rods
52 second valve rods
521 axle sleeves
53 valve rod axis
6 valve decks
61 valve cover holes
71 first tracks
72 second tracks
73 third tracks
74 the 4th tracks
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Fig. 1 is please referred to Fig. 2.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of invention, only shown in schema then with related component in the present invention rather than package count when according to actual implementation
Mesh, shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its
Assembly layout kenel may also be increasingly complex.This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
Art content obtains in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Before the embodiment of the present invention is described in detail, first application environment of the invention is described.The present invention
Technology mainly be applied in valve control, be especially applied in eccentric ball valve control.Inventor has found existing bias
Ball valve is generally one-way sealing and valve rod is placed in valve road, and the eccentric ball valve sealing performance of one-way sealing is undesirable and is not easy to
The cleaning of valve road in valve, in addition to this, since medium washes away and corrode the valve rod being set in valve road.For this purpose, invention human hair
A kind of double-eccentric ball valve is illustrated.
Fig. 1 and Fig. 2 are please referred to, the present invention provides a kind of double-eccentric ball valve, comprising: valve ball 1, valve body 2, the first valve road 3,
Two valve roads 4 and valve rod, the valve ball 1 further include the third valve road 13 for circulation medium；First valve road 3, described
The diameter of two valve roads 4 and the third valve road 13 is identical, and the valve rod includes the first valve rod 51 and the second valve rod 52, the valve
Ball 1 has the guide groove 14 for guiding, and first valve rod 51 is fixedly connected with the valve ball 1 and for driving the valve ball
1 rotation, second valve rod 52 is fixed on the valve body 2, and second valve rod 52 matches with the guide groove 14, the
One valve rod 51 drives valve ball 1 to rotate for transfer motion power, and the second valve rod 52 is used for guided rotation, the valve ball 1 and the valve
Bar is set in the valve body 2, and the valve ball 1 includes the first matching body 11 and the second matching body 12, and first valve road 3 includes the
One sealing surface 31 and secondary sealing area 32, second valve road 4 include third sealing surface 41 and the 4th sealing surface 42, described first
Matching body 11 includes the first matching face 111 and the second matching face 112, and second matching body 12 includes that third matches 121 He of face
4th matching face 122.
When the double-eccentric ball valve is in the open state, in state as shown in Figure 2, the first valve road 3, third valve road
13 and second valve road 4 be in connected state, medium can circulate, for valve rod use split-type design, avoid the first valve
The medium that bar 51 and the second valve rod 52 are born is washed away and is corroded.
When the double-eccentric ball valve switches from open state to closed state, the first matching face 111 is along the first track
71 direction movement, since first matching face 111 is greater than second matching face 112 at a distance from the valve rod axis 53
At a distance from the valve rod axis 53, the second matching face 112 is moved along the direction of the second track 72, second matching face
112 can be by primary sealing area 31 at, and then it is described first matching face 111 can be matched with the primary sealing area 31, institute
Stating the second matching face 112 can match with the secondary sealing area 32；Due to third matching face 121 and the valve rod axis
53 distance is less than the 4th matching face 122 at a distance from the valve rod axis 53, and third matches face 121 along third track
73 direction movement, third match face 121 can be by the 4th sealing surface at, the 4th matching face 122 along the 4th track 74
Direction movement, third matching face 121 can matchs with the third sealing surface 41, and the described 4th matches face 122 can be with
4th sealing surface 42 matching, the double-eccentric ball valve is in close state at this time.Since the double-eccentric ball valve uses institute
It states the first matching face 111 and is greater than the second matching face 112 and the valve rod axis 53 at a distance from the valve rod axis 53
Distance and third matching face 121 are less than the described 4th at a distance from the valve rod axis 53 and match face 122 and the valve rod
The eccentric design of the distance of axis 53, the double-eccentric ball valve can be realized two way seal, and from open state to closing shape
When state switches over, the double-eccentric ball valve is more and more closer, and sealing effect is good.
Preferably, the double-eccentric ball valve further includes being used to provide power actuator (being not drawn into figure), the execution
Device connect with first valve rod 51 and first valve rod 51 is driven to rotate, and controls the double-eccentric ball valve using actuator and opens
It closes higher convenient for control, precision.
In detail, it is equipped in the valve body 2 position corresponding with first valve rod 51 for assembling valve rod and valve ball 1
Valve deck 6, the valve deck 6 has valve cover hole 61, and first valve rod 51 is connect through the valve cover hole 61 with the valve ball 1,
When carrying out I& M, valve deck 6 can be disassembled from valve body 2；Further, it is equipped with and is used in the guide groove 14
The axle sleeve 521 of guiding, the axle sleeve 521 are set on second valve rod 52, and second valve rod 52 and axle sleeve 521 are set to
In guide groove 14.
Specifically, the valve ball 1 is made of alloy material, alloy material is corrosion-resistant and structural strength is high, therefore the valve
The service life of ball 1 will increase；The valve seat is made of No. 45 steel, from a wealth of sources, is convenient for casting and forming, convenient for manufacture and cost
It is lower.
In conclusion the present invention provides a kind of double-eccentric ball valve, comprising: valve ball, valve body, the first valve road, the second valve road,
Three valve roads and valve rod, when double-eccentric ball valve is in the open state, the first valve road, third valve road and the second valve road, which are in, to be connected
Logical state, medium can circulate, and the medium for avoiding valve rod receiving is washed away and corroded；When double-eccentric ball valve is in close state
When, the first seal and the second seal on valve body are sealed with the first valve road and the second valve road respectively, two way seal is realized,
Sealing performance is higher.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (7)
1. a kind of double-eccentric ball valve characterized by comprising valve ball, valve body, the first valve road, the second valve road and valve rod, it is described
Valve ball and the valve rod are set in the valve body, and the valve ball includes the first matching body and the second matching body, first valve
Road includes primary sealing area and secondary sealing area, and second valve road includes third sealing surface and the 4th sealing surface, and described first
Matching body includes the first matching face and the second matching face, and second matching body includes third matching face and the 4th matching face, institute
It states the first matching face and is greater than the second matching face at a distance from the valve rod axis at a distance from the valve rod axis, described the
Three matching faces are less than the 4th matching face at a distance from the valve rod axis at a distance from the valve rod axis, and described first
Matched with face with the primary sealing area, second matching face match with the secondary sealing area, the third match face and
The third sealing surface matching, the 4th matching face are matched with the 4th sealing surface.
2. double-eccentric ball valve according to claim 1, it is characterised in that: the valve rod includes the first valve rod and the second valve
Bar, the valve ball have the guide groove for guiding, and first valve rod is fixedly connected with the valve ball and is used to drive described
Valve ball rotation, second valve rod is fixed on the valve body, and second valve rod matches with the guide groove.
3. double-eccentric ball valve according to claim 2, it is characterised in that: the double-eccentric ball valve further includes dynamic for providing
Power actuator, the actuator connect with first valve rod and first valve rod are driven to rotate.
4. double-eccentric ball valve according to claim 2, it is characterised in that: corresponding with first valve rod in the valve body
Position is equipped with the valve deck for assembling valve rod and valve ball, and the valve deck has valve cover hole, and first valve rod runs through the valve
Cap bore is connect with the valve ball.
5. double-eccentric ball valve according to claim 2, it is characterised in that: be equipped with the axis for guiding in the guide groove
Set, the axle sleeve match with second valve rod.
6. double-eccentric ball valve according to claim 1, it is characterised in that: the valve ball further includes for circulation medium
Three valve roads.
7. double-eccentric ball valve according to claim 6, it is characterised in that: first valve road, second valve road and
The diameter of the third valve road is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426205.6A CN109958791A (en) | 2017-12-25 | 2017-12-25 | A kind of double-eccentric ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426205.6A CN109958791A (en) | 2017-12-25 | 2017-12-25 | A kind of double-eccentric ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109958791A true CN109958791A (en) | 2019-07-02 |
Family
ID=67021548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711426205.6A Pending CN109958791A (en) | 2017-12-25 | 2017-12-25 | A kind of double-eccentric ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109958791A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262688A (en) * | 1979-05-25 | 1981-04-21 | Acf Industries, Incorporated | Metal seat assemblies for valves |
| CN2864256Y (en) * | 2005-11-24 | 2007-01-31 | 李习洪 | Two-way hard seal double eccentric ball valve |
| CN103174846A (en) * | 2013-03-15 | 2013-06-26 | 五洲阀门有限公司 | Up-mounting type double-eccentricity ball valve |
| CN203309174U (en) * | 2013-06-18 | 2013-11-27 | 河南黑马实业有限公司 | Double-seal double-eccentric half-ball valve |
| US8839680B2 (en) * | 2012-09-19 | 2014-09-23 | Fisher Controls International Llc | Methods and apparatus for estimating a condition of a seal of a rotary valve |
| CN206093034U (en) * | 2016-10-09 | 2017-04-12 | 明珠阀门集团有限公司 | Four off -centre of upper assembling type ball valve sealed firmly |
| CN207777672U (en) * | 2017-12-25 | 2018-08-28 | 重庆昂宇自控仪表有限公司 | A kind of eccentric ball valve |
-
2017
- 2017-12-25 CN CN201711426205.6A patent/CN109958791A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262688A (en) * | 1979-05-25 | 1981-04-21 | Acf Industries, Incorporated | Metal seat assemblies for valves |
| CN2864256Y (en) * | 2005-11-24 | 2007-01-31 | 李习洪 | Two-way hard seal double eccentric ball valve |
| US8839680B2 (en) * | 2012-09-19 | 2014-09-23 | Fisher Controls International Llc | Methods and apparatus for estimating a condition of a seal of a rotary valve |
| CN103174846A (en) * | 2013-03-15 | 2013-06-26 | 五洲阀门有限公司 | Up-mounting type double-eccentricity ball valve |
| CN203309174U (en) * | 2013-06-18 | 2013-11-27 | 河南黑马实业有限公司 | Double-seal double-eccentric half-ball valve |
| CN206093034U (en) * | 2016-10-09 | 2017-04-12 | 明珠阀门集团有限公司 | Four off -centre of upper assembling type ball valve sealed firmly |
| CN207777672U (en) * | 2017-12-25 | 2018-08-28 | 重庆昂宇自控仪表有限公司 | A kind of eccentric ball valve |
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| 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: 20190702 |