CN109538779A - Ball valve combined seal ring and ball valve - Google Patents
Ball valve combined seal ring and ball valve Download PDFInfo
- Publication number
- CN109538779A CN109538779A CN201910045309.5A CN201910045309A CN109538779A CN 109538779 A CN109538779 A CN 109538779A CN 201910045309 A CN201910045309 A CN 201910045309A CN 109538779 A CN109538779 A CN 109538779A
- Authority
- CN
- China
- Prior art keywords
- ball valve
- ring
- rotary packing
- valve body
- packing ring
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 54
- 238000012856 packing Methods 0.000 claims abstract description 48
- 230000002708 enhancing effect Effects 0.000 claims abstract description 6
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 5
- 238000001727 in vivo Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- F16K5/08—Details
-
- 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
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 ball valve combined seal ring and ball valves, are related to ball valve sealing technical field, the ball valve with combined seal ring between ball valve body and rotary packing ring, including V-shaped ring and multiple O-ring seals；It is fitted closely between multiple O-ring seals and is axially formed a row, the V-shaped ring side resists ball valve body and is formed multiple for enhancing the first sealing of sealing, the V-shaped ring other side is respectively held against multiple O-ring seals and forms multiple the second sealings for being used to enhance sealing, to alleviate ball valve sealing technical problem not in place.
Description
Technical field
The present invention relates to ball valve sealing technical field more particularly to a kind of ball valve combined seal rings and ball valve.
Background technique
Hydroturbine water intake ball valve is the important electromechanical equipment in power station, in order to guarantee that the hydraulic turbine is safely and reliably run,
The water inlet of the hydraulic turbine is respectively arranged with water intake ball valve, upstream and liaison of penstock, and downstream is connect with hydroturbine water intake spiral case.
On the one hand the peace of maintenance is guaranteed by the water flow in the valve cut-out pressure steel pipe when the hydraulic turbine and generating set overhaul
Entirely, water flow can be effectively on the other hand cut off when the hydraulic turbine and generator occur abnormal, prevents the generation of accident.
Operation of the universal serial ball valve of domestic manufacturer's production at present in power station has certain problems, and leads to generator
The phenomenon that group can not work normally happens occasionally.Wherein one of reason is that water intake ball valve sealing ring used at present is not able to satisfy
The requirement reliably used.
For ball valve under high water head operating condition, pressure is higher, and valve body can generate dilatancy, and sealed groove sectional dimension is caused to become
Greatly, conventional hermetic because magnitude of interference it is limited, valve body swell increment can not be compensated, cause to reveal, influence unit normal operation.It should
The sealing ring of general type is difficult to meet requirement.
In consideration of it, there is an urgent need to a kind of novel ball valve combined seal rings, to be able to solve the above problem.
The information disclosed in the background technology section is intended only to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form that the information constitutes the prior art known to those skilled in the art.
Summary of the invention
The first object of the present invention is to provide a kind of ball valve combined seal ring, to alleviate on existing in the prior art
State technical problem.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of ball valve combined seal ring provided by the invention, between ball valve body and rotary packing ring, including V-arrangement is close
Seal ring and multiple O-ring seals；
A row is fitted closely and is axially formed between multiple O-ring seals, and the V-shaped ring side resists ball
Valve body simultaneously forms multiple the first sealings for being used to enhance sealing, and the V-shaped ring other side is respectively held against multiple O
Shape sealing ring is simultaneously formed multiple for enhancing the second sealing of sealing.
In the above-mentioned technical solutions, further, the V-shaped ring and multiple O-ring seals are elastomer.
In any of the above-described technical solution, further, the side that the V-shaped ring resists the ball valve body is formed
Seal lip.
The second object of the present invention is to provide a kind of ball valve, to alleviate the above-mentioned technical problems in the prior art.
The present invention also provides a kind of ball valves, including ball valve valve and the ball valve combined seal ring；
The rotary packing ring is provided between the ball valve body and ball valve valve, the rotary packing ring can be in the ball
The ball valve combined seal ring is moved through in valve body and the ball valve body seals, so that the ball valve valve and institute
Ball valve body disengaging is stated perhaps to be adjacent to realize unlatching or closure.
In any of the above-described technical solution, further, it is close that the periphery of the side of the ball valve valve is equipped with valve
Seat is sealed, the rotary packing ring is by being detached from or being adjacent to the valve seal receptacle, so that the ball valve body and ball valve valve
Between open or closure.
In any of the above-described technical solution, further, the valve seal receptacle is fixed on the ball by fastening screw
On valve valve.
In any of the above-described technical solution, further, between the rotary packing ring two sides and the ball valve body respectively
Form the first operation cavity and the second operation cavity；
When injecting hydraulic pressure in the first operation cavity, rotary packing ring is mobile to the second operation cavity direction, rotary packing ring side
It is detached from valve seal receptacle side, forms open state；
When injecting hydraulic pressure in the second operation cavity, rotary packing ring is mobile to the first operation cavity direction, rotary packing ring side
It is adjacent to valve seal receptacle side, forms closed state.
In any of the above-described technical solution, further, the cross section of the rotary packing ring is T-shaped.
In any of the above-described technical solution, further, the rotary packing ring is opened up with the ball valve body contact position
There is sealed groove, the ball valve is located in the sealed groove with combined seal ring.
In any of the above-described technical solution, further, the O-ring seals side is sealed close to sealed groove bottom
Lip is close to the ball valve body.
The invention has the benefit that
A kind of ball valve combined seal ring provided by the invention, including between ball valve body and rotary packing ring, including V
V-shaped ring and multiple O-ring seals；A row, the V-arrangement are fitted closely and are axially formed between multiple O-ring seals
Sealing ring side resists ball valve body and is formed multiple for enhancing the first sealing of sealing, the V-shaped ring other side
It is respectively held against multiple O-ring seals and is formed multiple for enhancing the second sealing of sealing.
When ball valve body works at high water pressures, because pressure is higher, ball valve body can generate dilatancy, ball valve body
It can become larger with the gap of rotary packing ring, ball valve has two sets of compensation machines of the first sealing and the second sealing with combined seal ring
System, the first sealing and the second sealing are axially distributed multiple sealings, further improve sealing performance, have compared with
Big compression deformation and elastic compensating amount, can provide reliable sealing performance gap becomes larger.
The present invention also provides a kind of ball valves, including ball valve valve and the ball valve combined seal ring；The ball valve
The rotary packing ring is provided between body and ball valve valve, the rotary packing ring can move through in the ball valve body
The ball valve combined seal ring and the ball valve body seal so that the ball valve valve and the ball valve body be detached from or
It is adjacent to, opens or be closed to realize.
It should be noted that the structure of ball valve combined seal ring and the beneficial effect of generation have been explained in detail above-mentioned
It states, so details are not described herein.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of ball valve provided in an embodiment of the present invention.
Fig. 2 is the structural schematic diagram of dynamic sealing valve provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram for the ball valve combined seal ring that inventive embodiments provide.
Icon:
1- ball valve body；1a- first operates cavity；1b- second operates cavity；2- ball valve valve；3, valve seal receptacle；4-
Rotary packing ring；5- fastening screw；6- sealed groove；7- ball valve combined seal ring；71-V V-shaped ring；72-O shape sealing ring；
73- seal lip.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment one
As shown in Figure 1-Figure 3, a kind of ball valve combined seal ring 7 provided in this embodiment, including it is located at 1 He of ball valve body
Between rotary packing ring 4, including V-shaped ring 71 and multiple O-ring seals 72；It is closely pasted between multiple O-ring seals 72
Close and be axially formed a row, 71 side of V-shaped ring resists ball valve body 1 and formed multiple for enhance seal the
One sealing, 71 other side of V-shaped ring are respectively held against multiple O-ring seals 72 and are formed multiple close for enhancing
Second sealing of envelope.
When ball valve body 1 works at high water pressures, because pressure is higher, ball valve body 1 can generate dilatancy, ball valve
Body 1 and the gap of rotary packing ring 4 can become larger, and ball valve combined seal ring 7 has the first sealing and two sets of the second sealing benefits
Mechanism is repaid, the first sealing and the second sealing are axially distributed multiple sealings, sealing performance is further improved,
There are biggish compression deformation and elastic compensating amount, reliable sealing performance can be provided gap becomes larger.
The ball valve is made of with combined seal ring 7 two elastomers and a sealing ring, wherein two elastomers are close using routine O shape
Seal 72；With two sets of compensation mechanism: the elastic compensating of conventional O-ring seals 72；Sealing ring two sides use v-shaped structure, have
Biggish compression deformation and elastic compensating amount.
In the optinal plan of the present embodiment, the V-shaped ring 71 and multiple O-ring seals 72 are elastomer.
In the optinal plan of the present embodiment, the side that the V-shaped ring 71 resists the ball valve body 1 forms sealing lip
Mouth 73.
Embodiment two
On the basis of example 1, the present embodiment also provides a kind of ball valve, uses including ball valve valve 2 and the ball valve
Combined seal ring 7；The rotary packing ring 4 is provided between the ball valve body 1 and ball valve valve 2, the rotary packing ring 4 can
It is sealed in moving through the ball valve combined seal ring 7 in the ball valve body 1 with the ball valve body 1, so that described
Ball valve valve 2 is perhaps adjacent to the ball valve body 1 disengaging to be opened or is closed to realize.
It should be noted that the ball valve structure of combined seal ring 7 and the beneficial effect of generation have been explained in detail above-mentioned
It states, so details are not described herein.
In the optinal plan of the present embodiment, the periphery of the side of the ball valve valve 2 is equipped with valve seal receptacle 3, institute
Rotary packing ring 4 is stated by being detached from or being adjacent to the valve seal receptacle 3, so that between the ball valve body 1 and ball valve valve 2
It opens or is closed.
In the optinal plan of the present embodiment, the valve seal receptacle 3 is fixed on the ball valve valve 2 by fastening screw 5
On.
In the optinal plan of the present embodiment, first is respectively formed between 4 two sides of rotary packing ring and the ball valve body 1
Operate the operation of cavity 1a and second cavity 1b；When injecting hydraulic pressure in the first operation cavity 1a, rotary packing ring 4 operates cavity to second
The direction 1b is mobile, and 4 side of rotary packing ring and 3 side of valve seal receptacle are detached from, and forms open state；When in the second operation cavity 1b
Hydraulic pressure is injected, rotary packing ring 4 is mobile to the first operation direction cavity 1a, and 4 side of rotary packing ring and 3 side of valve seal receptacle are pasted
Tightly, closed state is formed.
In the optinal plan of the present embodiment, the cross section of the rotary packing ring 4 is T-shaped.
In the optinal plan of the present embodiment, the rotary packing ring 4 offers sealing ditch with 1 contact position of ball valve body
Slot 6, the ball valve are located in the sealed groove 6 with combined seal ring 7.
In the optinal plan of the present embodiment, 72 side of O-ring seals is close to 6 bottom of sealed groove, seal lip 73
Close to the ball valve body 1.
Combined seal ring sealing ring two sides are v-shaped structure, have two seals lip 73 with valve body contact side, with O
Shape sealing ring 72, which contacts side, twice circular arc.Magnitude of interference can compensate for the dilatancy amount of ball valve body 1 under high pressure；It avoids
It is squeezed into gap under high pressure and destroys；The feasibility and stability of processing technology；Reliable sealing performance.
The operation principle and process of the present embodiment:
Ball valve valve 2 is equipped in the inner cavity of ball valve body 1, it is close that the periphery of the side of the ball valve valve 2 is equipped with valve
Seal seat 3；Ball valve body 1 is equipped with rotary packing ring 4, and the cross section of the rotary packing ring 4 is T-shaped, and two sides of T-shaped vertical edge
It is respectively equipped with the operation cavity 1b of the first operation cavity 1a and second, the two operation cavitys are respectively that the sealing ring in left side opens chamber
Body and the sealing ring on right side close cavity.Two operation cavitys are opened on ball valve body 1, and rotary packing ring 4 can be operated at two
It is moved axially under the hydraulic drives of cavity, and contacts or be detached from valve seal receptacle 3.3 sealed grooves are provided on rotary packing ring 4
6, the combined seal ring is mounted in sealed groove 6, and 72 side of O-ring seals is close to 6 bottom of sealed groove, seal lip 73
Close to ball valve body 1；Hydraulic pressure is injected when unlatching first operates in cavity 1a, rotary packing ring 4 moves right, 4 side of rotary packing ring
It is detached from 3 side of valve seal receptacle, forms open state；Inject hydraulic pressure when unlatching second operates in cavity 1b, rotary packing ring 4 to
It moves left, 4 side of rotary packing ring is adjacent to 3 side of valve seal receptacle, forms closed state.
In addition, the ball valve further includes other structures, but is disclosed as the prior art, so it is no longer superfluous herein
It states.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of ball valve combined seal ring, between ball valve body and rotary packing ring, which is characterized in that including v-seal
Ring and multiple O-ring seals；
A row is fitted closely and is axially formed between multiple O-ring seals, and the V-shaped ring side resists ball valve
Body simultaneously forms multiple the first sealings for being used to enhance sealing, and it is close that the V-shaped ring other side is respectively held against multiple O shapes
Seal is simultaneously formed multiple for enhancing the second sealing of sealing.
2. ball valve combined seal ring according to claim 1, which is characterized in that the V-shaped ring and multiple O
Shape sealing ring is elastomer.
3. ball valve combined seal ring according to claim 1 or 2, which is characterized in that the V-shaped ring resists described
The side of ball valve body forms seal lip.
4. a kind of ball valve, which is characterized in that including ball valve valve and the described in any item ball valve combination sealings of claim 1-3
Circle；
The rotary packing ring is provided between the ball valve body and ball valve valve, the rotary packing ring can be in the ball valve
The ball valve combined seal ring is moved through in vivo and the ball valve body seals, so that the ball valve valve and the ball
Valve body disengaging, which is perhaps adjacent to, opens or is closed to realize.
5. ball valve according to claim 4, which is characterized in that the periphery of the side of the ball valve valve is equipped with valve
Seal receptacle, the rotary packing ring is by being detached from or being adjacent to the valve seal receptacle, so that the ball valve body and ball valve are living
It opens or is closed between door.
6. ball valve according to claim 5, which is characterized in that the valve seal receptacle is fixed on described by fastening screw
On ball valve valve.
7. ball valve according to claim 4, which is characterized in that divide between the rotary packing ring two sides and the ball valve body
It Xing Cheng not the first operation cavity and the second operation cavity；
When injecting hydraulic pressure in the first operation cavity, rotary packing ring is mobile to the second operation cavity direction, rotary packing ring side and work
Door sealing seat side is detached from, and forms open state；
When injecting hydraulic pressure in the second operation cavity, rotary packing ring is mobile to the first operation cavity direction, rotary packing ring side and work
Door sealing seat side is adjacent to, and forms closed state.
8. ball valve according to claim 4, which is characterized in that the cross section of the rotary packing ring is T-shaped.
9. the ball valve according to claim 4 or 8, which is characterized in that the rotary packing ring and the ball valve body contact position
Sealed groove is offered, the ball valve is located in the sealed groove with combined seal ring.
10. ball valve according to claim 9, which is characterized in that the O-ring seals side close to sealed groove bottom,
Seal lip is close to the ball valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910045309.5A CN109538779A (en) | 2019-01-17 | 2019-01-17 | Ball valve combined seal ring and ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910045309.5A CN109538779A (en) | 2019-01-17 | 2019-01-17 | Ball valve combined seal ring and ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109538779A true CN109538779A (en) | 2019-03-29 |
Family
ID=65837917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910045309.5A Pending CN109538779A (en) | 2019-01-17 | 2019-01-17 | Ball valve combined seal ring and ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109538779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623133A (en) * | 2020-06-30 | 2020-09-04 | 国家电网有限公司 | Ball valve working sealing assembly with elastic center hole |
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| CN205446788U (en) * | 2015-12-03 | 2016-08-10 | 安徽红星阀门有限公司 | A sealing device for valve |
| CN206092960U (en) * | 2016-10-11 | 2017-04-12 | 重庆云河发电设备有限公司 | Hydraulic turbine intake ball valve work and overhaul sealing ring operational structure |
| CN206958255U (en) * | 2017-07-20 | 2018-02-02 | 广州宝力特密封技术有限公司 | A kind of two-shot elastomer combination sealing |
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| CN207064700U (en) * | 2017-08-09 | 2018-03-02 | 开维喜阀门集团有限公司 | A kind of two way seal eccentric half-ball valve |
| WO2018101161A1 (en) * | 2016-11-29 | 2018-06-07 | Nok株式会社 | Sealing device |
| CN209354691U (en) * | 2019-01-17 | 2019-09-06 | 广州宝力特密封技术有限公司 | Ball valve combined seal ring and ball valve |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623133A (en) * | 2020-06-30 | 2020-09-04 | 国家电网有限公司 | Ball valve working sealing assembly with elastic center hole |
| CN111623133B (en) * | 2020-06-30 | 2022-03-08 | 国家电网有限公司 | Ball valve working sealing assembly with elastic center hole |
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