CN207486097U - A kind of sealing self-compensating ball valve - Google Patents
A kind of sealing self-compensating ball valve Download PDFInfo
- Publication number
- CN207486097U CN207486097U CN201721264721.9U CN201721264721U CN207486097U CN 207486097 U CN207486097 U CN 207486097U CN 201721264721 U CN201721264721 U CN 201721264721U CN 207486097 U CN207486097 U CN 207486097U
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- China
- Prior art keywords
- valve
- sealing
- spring
- ball valve
- sphere
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Abstract
The utility model provides a kind of sealing self-compensating ball valve, is related to valve seal technical field, including spring, floating bushing, sealing ring, sphere, valve deck, valve body, spring, packing press ring, filler, valve rod.The utility model seals self-compensating ball valve, and butterfly spring, floating bushing and sealing ring are equipped between sphere and the sealing surface of valve body, can realize that the sealing of sealing surface compensates automatically；Coordinated by valve deck and butterfly spring, packing press ring so that sealed between valve rod and valve body, can realize and automatic compensation is sealed at stuffing-box.In ball valve after a period of use or ball valve sealing position is in certain wear range, sealing can compensate the utility model automatically, still ensure that reliable sealing, effectively improve the service life of ball valve.
Description
Technical field
The present invention relates to valve seal technical fields, and in particular to a kind of sealing self-compensating ball valve.
Background technology
Ball valve is to open and close sphere to be driven by valve rod, and the valve to rotate around ball valve axis, also available for fluid
It adjusts and controls, wherein there is very strong cut between sealing its V-type core of V-type ball valve and the metal seat valve of pile-up welding hard alloy firmly
Shear force, the medium especially suitable for fibre-bearing, small solid pellet etc..And multi-pass ball valve not only can flexibly control Jie on pipeline
Interflow, shunting and the switching of flow direction of matter, while also can close any channel and other two channel is made to be connected.
With the rapid development of science and technology, production technology and product structure are continuously improved, and ball valve is rapidly developed into
For a kind of main valve class.Ball valve is widely used in petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electricity
The industries such as power, municipal administration, steel occupy very important status in national economy.But since institute's pumped (conveying) medium often has
Corrosivity, and containing a large amount of solid particles, sealing surface is caused easily to corrode and wear, sealing pair is caused to fail, medium occurs and lets out
Leakage, seriously affects ball valve service life.
Invention content
(1) the technical issues of solving
The present invention provides one to overcome the problems, such as the defects of above-mentioned ball valve is perishable, abrasion causes service life to reduce
Kind of sealing self-compensating ball valve, the present invention in ball valve after a period of use or ball valve sealing position is in certain wear range, sealing
It can compensate automatically, still ensure that reliable sealing, effectively improve the service life of ball valve.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs：
A kind of sealing self-compensating ball valve, including the first spring 1, floating bushing 2, sealing ring 3, sphere 4, valve deck 5, valve body 6,
Two springs 7, packing press ring 8, filler 9, valve rod 10；Sealing ring 3, floating bushing 2, first are sequentially installed between sphere 4 and valve body 6
Spring 1；Valve rod 10 is connected by bearing with sphere 4, and valve deck 5 is flexibly connected with valve body 6；It is filled between valve rod 10 and valve body 6
There is filler 9, packing press ring 8 on filler 9 is installed, second spring 7 is installed between packing press ring 8 and valve deck 5.
Further, first spring 1 is butterfly spring or cylindroid helical-coil compression spring.
Further, the valve deck 5 is connect with valve body 6 with thread forms.
Further, gasket is installed between the valve deck 5 and valve body 6.
Further, the gasket is cermet gasket.
Further, sealing element is installed between the valve rod 10 and sphere 4.
Further, the sealing element is cermet sealing element.
Further, the second spring 7 is butterfly spring.
Further, the filler 9 is asbestos, soft graphite or polytetrafluoroethylene (PTFE).
Further, the sealing ring 3 is teflin ring.
(3) advantageous effect
Beneficial effects of the present invention：A kind of sealing self-compensating ball valve, butterfly is equipped between sphere and the sealing surface of valve body
Spring, floating bushing and sealing ring can realize that the sealing of sealing surface compensates automatically；Pass through valve deck and butterfly spring, packing press ring
Cooperation so that sealed between valve rod and valve body, can realize and automatic compensation is sealed at stuffing-box；The present invention uses one section in ball valve
In certain wear range, sealing can compensate automatically for after time or ball valve sealing position, still ensure that reliable sealing, effectively improve
The service life of ball valve.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is ball-valve structure figure of the present invention.
In figure, the 1, first spring；2nd, floating bushing；3rd, sealing ring；4th, sphere；5th, valve deck；6th, valve body；7th, second spring；8、
Packing press ring；9th, filler；10th, valve rod.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts shall fall within the protection scope of the present invention.
With reference to Fig. 1, a kind of sealing self-compensating ball valve, including the first spring 1, floating bushing 2, sealing ring 3, sphere 4, valve deck 5,
Valve body 6, second spring 7, packing press ring 8, filler 9, valve rod 10.
Sealing ring 3, floating bushing 2, the first spring 1 are sequentially installed between sphere 4 and valve body 6.First spring 1 can be butterfly
Shape spring or cylindroid helical-coil compression spring.Sealing ring 3 can be teflin ring.Valve rod 10 passes through bearing and sphere 4
It is connected, sealing element can be installed, sealing element can be cermet sealing element between valve rod 10 and sphere 4.Valve deck 5 and valve
Body 6 is flexibly connected, and valve deck 5 can be connect with valve body 6 with thread forms.Gasket between valve deck 5 and valve body 6 can be installed, padded
Piece can be cermet gasket.Filler 9 is filled between valve rod 10 and valve body 6, packing press ring 8, filler are installed on filler 9
Second spring 7 is installed between pressure ring 8 and valve deck 5.Filler 9 can be asbestos, soft graphite or polytetrafluoroethylene (PTFE).Second spring
7 can be butterfly spring.
The sealing of sphere 4 and 6 sealing surface of valve body is to compress floating bushing 2 by 1 deflection pretightning force of the first spring, makes floating
The sealing pair active force for putting on sealing ring 3 is pressed on sphere 4 to reach sealing, and when the certain number of ball valve switch, sealing
Pair is certain to wear, and the first spring 1 can also play the role of compensating automatically, with the variation of the deflection and active force of spring,
Ball valve sealing pressure accordingly reduces.
Sealing refers to the sealing between ball-valve valve rod and valve deck at stuffing-box, clamp force is given to reach by the deflection of disk spring
To sealing No leakage.Second spring 7 is compressed by valve deck 5 to press to packing press ring 8, and 9 deformation expansion of filler is forced to squeeze, makes valve
It is sealed between bar 10 and valve body 6 with reaching.When filler is in certain wear range, disk spring remains to play the work compensated automatically
With in the case where structure space allows, two disk spring pairings, which can be used, increases deflection and automatic compensation height, can be more
Automatic compensation is realized well.
In conclusion butterfly spring, floating bushing and close are installed between the sealing surface of the embodiment of the present invention, sphere and valve body
Seal can realize that the sealing of sealing surface compensates automatically；Pass through valve deck and butterfly spring, packing press ring coordinates so that valve rod with
It is sealed between valve body, can realize and automatic compensation is sealed at stuffing-box；The present invention in ball valve after a period of use or ball valve is close
Position is sealed in certain wear range, sealing can compensate automatically, still ensure that reliable sealing, and effectively improve ball valve uses the longevity
Life.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example modifies or carries out equivalent replacement to which part technical characteristic；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of sealing self-compensating ball valve, it is characterised in that：Including the first spring (1), floating bushing (2), sealing ring (3), sphere
(4), valve deck (5), valve body (6), second spring (7), packing press ring (8), filler (9), valve rod (10)；Sphere (4) and valve body (6)
Between be sequentially installed with sealing ring (3), floating bushing (2), the first spring (1)；Valve rod (10) is connected by bearing with sphere (4),
Valve deck (5) is flexibly connected with valve body (6)；Filler (9) is filled between valve rod (10) and valve body (6), is equipped with and fills out on filler (9)
Expect pressure ring (8), second spring (7) is installed between packing press ring (8) and valve deck (5).
2. a kind of sealing self-compensating ball valve as described in claim 1, it is characterised in that：First spring (1) is butterfly bullet
Spring or cylindroid helical-coil compression spring.
3. a kind of sealing self-compensating ball valve as described in claim 1, it is characterised in that：The valve deck (5) is with valve body (6) with spiral shell
Line form connects.
4. a kind of sealing self-compensating ball valve as claimed in claim 3, it is characterised in that：Between the valve deck (5) and valve body (6)
Gasket is installed.
5. a kind of sealing self-compensating ball valve as claimed in claim 4, it is characterised in that：The gasket is cermet gasket.
6. a kind of sealing self-compensating ball valve as described in claim 1, it is characterised in that：The valve rod (10) and sphere (4) it
Between sealing element is installed.
7. a kind of sealing self-compensating ball valve as claimed in claim 6, it is characterised in that：The sealing element is sealed for cermet
Part.
8. a kind of sealing self-compensating ball valve as described in claim 1, it is characterised in that：The second spring (7) is butterfly bullet
Spring.
9. a kind of sealing self-compensating ball valve as described in claim 1, it is characterised in that：The filler (9) is asbestos, flexible stone
Ink or polytetrafluoroethylene (PTFE).
10. a kind of sealing self-compensating ball valve as described in claim 1, it is characterised in that：The sealing ring (3) is polytetrafluoroethyl-ne
Alkene sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721264721.9U CN207486097U (en) | 2017-09-29 | 2017-09-29 | A kind of sealing self-compensating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721264721.9U CN207486097U (en) | 2017-09-29 | 2017-09-29 | A kind of sealing self-compensating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207486097U true CN207486097U (en) | 2018-06-12 |
Family
ID=62482969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721264721.9U Expired - Fee Related CN207486097U (en) | 2017-09-29 | 2017-09-29 | A kind of sealing self-compensating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207486097U (en) |
-
2017
- 2017-09-29 CN CN201721264721.9U patent/CN207486097U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20190929 |