CN107504217A - One kind sealing self-compensating ball valve - Google Patents
One kind sealing self-compensating ball valve Download PDFInfo
- Publication number
- CN107504217A CN107504217A CN201710903606.XA CN201710903606A CN107504217A CN 107504217 A CN107504217 A CN 107504217A CN 201710903606 A CN201710903606 A CN 201710903606A CN 107504217 A CN107504217 A CN 107504217A
- Authority
- CN
- China
- Prior art keywords
- sealing
- ball valve
- valve
- spring
- bonnet
- 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.)
- Withdrawn
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
- F16K5/0668—Single 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
- 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
- F16K5/0689—Packings between housing and plug
-
- 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
- F16K5/0694—Spindle sealings
-
- 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
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention provides a kind of sealing self-compensating ball valve, is related to valve seal technical field, including spring, floating bushing, sealing ring, spheroid, bonnet, valve body, spring, packing press ring, filler, valve rod.Present invention sealing self-compensating ball valve, is provided with butterfly spring, floating bushing and sealing ring, it is possible to achieve the sealing of sealing surface compensates automatically between spheroid and the sealing surface of valve body；Coordinated by bonnet and butterfly spring, packing press ring so that sealed between valve rod and valve body, it is possible to achieve automatic compensation is sealed at stuffing-box.The present invention is after ball valve uses a period of time or ball valve sealing position is in certain wear range, and sealing can compensate 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 field, and in particular to one kind sealing self-compensating ball valve.
Background technology
Ball valve is to open and close spheroid to be driven by valve rod, and the valve to be rotated around ball valve axis, also available for fluid
Regulation and control, 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 passage and two other passage is connected.
With the rapid development of science and technology, production technology and product structure are updated, and ball valve develops rapidly 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, very important status is occupied in national economy.But by institute's pumped (conveying) medium often has
Corrosivity, and contain a large amount of solid particles, cause sealing surface easily to corrode and wear, cause sealing pair to fail, medium occur and let out
Leakage, has a strong impact on ball valve service life.
The content of the invention
(1) technical problem solved
Above-mentioned ball valve is perishable, wears the defects of service life is reduced problem in order to overcome by the present invention, there is provided one
Kind sealing self-compensating ball valve, the present invention is after ball valve uses a period of time or ball valve sealing position is in certain wear range, sealing
It can automatically compensate, still ensure that reliable sealing, effectively improve the service life of ball valve.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs：
One kind sealing self-compensating ball valve, including spring 1, floating bushing 2, sealing ring 3, spheroid 4, bonnet 5, valve body 6, spring 7,
Packing press ring 8, filler 9, valve rod 10；Sealing ring 3, floating bushing 2, spring 1 are sequentially installed between spheroid 4 and valve body 6；Valve rod 10
It is connected by bearing with spheroid 4, bonnet 5 is flexibly connected with valve body 6；Filler 9 is filled between valve rod 10 and valve body 6, on filler 9
Packing press ring 8 is installed, spring 7 is installed between packing press ring 8 and bonnet 5.
Further, the spring 1 is butterfly spring or cylindroid helical-coil compression spring.
Further, the bonnet 5 is connected with valve body 6 with thread forms.
Further, pad is installed between the bonnet 5 and valve body 6.
Further, the pad is cermet pad.
Further, seal is installed between the valve rod 10 and spheroid 4.
Further, the seal is cermet seal.
Further, the 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) beneficial effect
Beneficial effects of the present invention：One kind sealing self-compensating ball valve, butterfly is provided between spheroid and the sealing surface of valve body
Spring, floating bushing and sealing ring, it is possible to achieve the sealing of sealing surface compensates automatically；Pass through bonnet and butterfly spring, packing press ring
Coordinate so that sealed between valve rod and valve body, it is possible to achieve 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.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is ball-valve structure figure of the present invention.
In figure, 1 spring, 2 floating bushings, 3 sealing rings, 4 spheroids, 5 bonnets, 6 valve bodies, 7 springs, 8 packing press rings, 9 fillers, 10
Valve rod.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme 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, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
With reference to Fig. 1, one kind sealing self-compensating ball valve, including spring 1, floating bushing 2, sealing ring 3, spheroid 4, bonnet 5, valve body
6th, spring 7, packing press ring 8, filler 9, valve rod 10.
Sealing ring 3, floating bushing 2, spring 1 are sequentially installed between spheroid 4 and valve body 6.Spring 1 can be butterfly spring or
Cylindroid helical-coil compression spring, spring 1 are preferably butterfly spring.Sealing ring 3 can be teflin ring.Valve rod 10 passes through
Bearing is connected with spheroid 4, and seal can be provided between valve rod 10 and spheroid 4, and seal can be cermet seal.
Bonnet 5 is flexibly connected with valve body 6, and bonnet 5 can be connected with valve body 6 with thread forms.It can be installed between bonnet 5 and valve body 6
There is pad, pad can be cermet pad.Filler 9 is filled between valve rod 10 and valve body 6, filler is installed on filler 9
Pressure ring 8, spring 7 is installed between packing press ring 8 and bonnet 5.Filler 9 can be asbestos, soft graphite or polytetrafluoroethylene (PTFE).Bullet
Spring 7 can be butterfly spring.
The sealing of spheroid 4 and the sealing surface of valve body 6 is to compress floating bushing 2 by the deflection pretightning force of disk spring 1, makes floating
The sealing pair active force for putting sealing ring 3 is pressed on spheroid 4 to reach sealing, and works as the certain number of ball valve switch, is sealed
Pair is certain to wear, and disk spring can also play a part of compensating automatically, with the change of the deflection and active force of spring, ball
Valve seal pressure accordingly reduces.
Sealing refers to the sealing between ball-valve valve rod and bonnet at stuffing-box, gives clamp force to reach by the deflection of disk spring
To sealing No leakage.Disk spring 7 is compressed by bonnet 5 to press to packing press ring 8, is forced the deformed dilation of filler 9 to extrude, is made valve
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 can be used to increase deflection and automatic compensation height, can be more
Automatic compensation is realized well.
In summary, butterfly spring, floating bushing and close are installed between the sealing surface of the embodiment of the present invention, spheroid and valve body
Seal, it is possible to achieve the sealing of sealing surface compensates automatically；Pass through bonnet and butterfly spring, packing press ring coordinates so that valve rod with
Sealed between valve body, it is possible to achieve automatic compensation is sealed at stuffing-box；The present invention is after ball valve uses a period of time 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, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key 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 within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. one kind sealing self-compensating ball valve, it is characterised in that：Including spring (1), floating bushing (2), sealing ring (3), spheroid (4),
Bonnet (5), valve body (6), spring (7), packing press ring (8), filler (9), valve rod (10)；Between spheroid (4) and valve body (6) successively
Sealing ring (3), floating bushing (2), spring (1) are installed；Valve rod (10) is connected by bearing with spheroid (4), bonnet (5) and valve body
(6) it is flexibly connected；Filler (9) is filled between valve rod (10) and valve body (6), packing press ring (8) is installed on filler (9), filled out
Spring (7) is installed between material pressure ring (8) and bonnet (5).
A kind of 2. sealing self-compensating ball valve as claimed in claim 1, it is characterised in that：The spring (1) be butterfly spring or
Cylindroid helical-coil compression spring.
A kind of 3. sealing self-compensating ball valve as claimed in claim 1, it is characterised in that：The bonnet (5) is with valve body (6) with spiral shell
Line form connects.
A kind of 4. sealing self-compensating ball valve as claimed in claim 3, it is characterised in that：Between the bonnet (5) and valve body (6)
Pad is installed.
A kind of 5. sealing self-compensating ball valve as claimed in claim 4, it is characterised in that：The pad is cermet pad.
A kind of 6. sealing self-compensating ball valve as claimed in claim 1, it is characterised in that：The valve rod (10) and spheroid (4) it
Between seal is installed.
A kind of 7. sealing self-compensating ball valve as claimed in claim 6, it is characterised in that：The seal seals for cermet
Part.
A kind of 8. sealing self-compensating ball valve as claimed in claim 1, it is characterised in that：The spring (7) is butterfly spring.
A kind of 9. sealing self-compensating ball valve as claimed in claim 1, it is characterised in that：The filler (9) is asbestos, flexible stone
Ink or polytetrafluoroethylene (PTFE).
A kind of 10. sealing self-compensating ball valve as claimed 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 |
|---|---|---|---|
| CN201710903606.XA CN107504217A (en) | 2017-09-29 | 2017-09-29 | One kind sealing self-compensating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710903606.XA CN107504217A (en) | 2017-09-29 | 2017-09-29 | One kind sealing self-compensating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107504217A true CN107504217A (en) | 2017-12-22 |
Family
ID=60699826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710903606.XA Withdrawn CN107504217A (en) | 2017-09-29 | 2017-09-29 | One kind sealing self-compensating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504217A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113257445A (en) * | 2021-07-01 | 2021-08-13 | 中国核动力研究设计院 | System for instantaneously measuring neutron flux under high-temperature and high-pressure working condition |
-
2017
- 2017-09-29 CN CN201710903606.XA patent/CN107504217A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113257445A (en) * | 2021-07-01 | 2021-08-13 | 中国核动力研究设计院 | System for instantaneously measuring neutron flux under high-temperature and high-pressure working condition |
| CN113257445B (en) * | 2021-07-01 | 2021-10-22 | 中国核动力研究设计院 | System for instantaneously measuring neutron flux under high-temperature and high-pressure working condition |
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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: 20171222 |
|
| WW01 | Invention patent application withdrawn after publication |