CN207454817U - One kind can dismount top mounting ball valve online - Google Patents
One kind can dismount top mounting ball valve online Download PDFInfo
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- CN207454817U CN207454817U CN201721557435.1U CN201721557435U CN207454817U CN 207454817 U CN207454817 U CN 207454817U CN 201721557435 U CN201721557435 U CN 201721557435U CN 207454817 U CN207454817 U CN 207454817U
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Abstract
The utility model discloses one kind can dismount top mounting ball valve online, belong to valve technology field.The utility model can dismount top mounting ball valve online, including valve body, be fixed on the valve deck of body top, be arranged at the in vivo sphere of valve, two groups of valve components for being respectively arranged at sphere both sides and the retainer ring of connection valve body and valve component.The utility model meets user has the function of the top mounting ball valve function needs of double-piston effect two way seal to what is dismounted online.The valve component of the double-piston effect of the utility model is designed using separate type, function modoularization, valve seat support ring mainly realizes sealing, fire-proof function, valve cup ring mainly realizes that traction valve seat support ring does similar piston reciprocating locomotive function and builds the function of greasing passage, solves existing integral type valve seat hidden danger that may be present, guidance quality is good, stability is good, without acceptance of persons, without card resistance, service life is long, meet top mounting ball valve fire prevention, online greasing requirement, easily facilitate the online assembly or disassembly of top mounting ball valve.
Description
Technical field
The utility model is related to valve technology fields, and in particular to one kind can dismount top mounting ball valve online.
Background technology
At present, existing top mounting ball valve is mostly releasing pressure automatically, integral type valve seat construction, generally includes valve body, valve deck, ball
Body, valve seat, valve rod driving device.It is finished in assembling and qualified ball valve, the pretightning force that spiral compression spring generates ensures sphere
The compactness gluing, sealing state being in valve seat, valve seat is compared with mounted in pairs at left and right sides of sphere.Valve rod drives valve rod
The torque that device generates passes to sphere, the rotation that sphere is made to be 0-90 °, realizes the purpose for being turned on and off ball valve.
When operating mode emphasizes isolation (sealing) effect of valve upstream and downstream valve seat：That is upstream medium does not allow bleed downstream
When, releasing pressure automatically valve seat can not realize isolation (sealing) requirement.Design feature based on top mounting ball valve, inner components can only
Assembly or disassembly is carried out by passage at valve body, valve deck faying face, it, should in order to realize the assembly or disassembly of existing integral type valve seat
Channel size is often opened bigger, can thus generate following hidden danger：
First, for final assembly or disassembly sphere, valve seat needs larger stroke in valve inner, is thus easy to cause
Integral type valve seat may generate overturning or stick up when moving to be turned, and bias occurs, so as to generate card with adjacent valve body sealing position
Hinder phenomenon；2nd, with the movement of the larger stroke of valve seat, on valve seat between valve body for sealing medium O-ring seal along stream
Road axial movement distance increases, and abrasion aggravation, service life reduces；3rd, spiral compression spring stretches out valve seat between valve body
Length can lengthen significantly, to meet the needs of the larger stroke of valve seat, therefore may generate curved situation at work, so as to
There is the situation of card resistance or deformation, stability is poor, can cause the shifting for becoming smaller or becoming larger or even can influence valve seat of pretightning force
It is dynamic, to overcome such case, it is necessary to deepen spiral compression spring and stretch into the depth of valve seat and use big stiffness helix pressure
Contracting spring improves the stability of spiral compression spring, so again valve seat size is caused to increase.It is opened in this regard, also having outside valve body
If removal hole is realized applies external force to valve seat, but has accordingly increased the possibility of ball valve leakage；Also by other machinery sides
Method realizes movable valve base, and for larger caliber ball valve, valve seat size is larger, dead weight is larger, spiral compression spring production
Raw pretightning force is larger, in this case it is necessary to which the external force generated can be bigger, therefore, it is intended that being generated using mechanical means
The external force of movable valve base is relatively difficult.
Utility model content
Existing in the prior art to solve the problems, such as, the purpose of this utility model is to provide one kind can dismount top dress ball online
Valve.
The technical solution that the utility model solves above-mentioned technical problem is as follows：
One kind can dismount top mounting ball valve online, including valve body, be fixed on the valve deck of body top, be arranged at the in vivo ball of valve
Body, two groups of valve components for being respectively arranged at sphere both sides and the retainer ring of connection valve body and valve component；Wherein, valve seat group
Part includes the valve cup ring being connected with valve body, the valve seat support ring being arranged between valve cup ring and sphere and is respectively arranged in valve seat
Valve seat and spiral compression spring on support ring, valve seat support ring coordinates respectively with valve cup ring and sphere, and valve seat support ring
Be connected by spiral compression spring with valve cup ring, on the side with spheroid form cooperation that valve seat is arranged at valve seat support ring and
Valve seat and sphere Elastic Contact；Retainer ring is fixed on valve body, and retainer ring has the first entering pressure hole entered for fluid, valve
Body, valve cup ring and retainer ring limit the first annular seal space connected with the first entering pressure hole, and valve body has the entered for fluid
Two entering pressure holes, valve body and valve cup ring limit the second annular seal space connected with the second entering pressure hole.
The top mounting ball valve that can dismount online of the utility model has the function of double-piston effect, two way seal, can dismount online.
The valve component of the utility model presses the design of double-piston effect, and basic principle is that the valve component of double-piston effect is in upstream
The pressure differential that upstream valve seat is pushed to sphere is formed between the difference in areas of surface channel D1 and sphere section D so that positioned at upstream tube
The valve component in road is fitted closely and sealed with sphere；The valve component of double-piston effect is in sphere section D and downstream passage face
The pressure differential that downstream valve seat is pushed to sphere is formed between the difference in areas of D2 so that positioned at the valve component and sphere of downstream line
It fits closely and seals.Therefore, no matter ball valve is under which kind of state, even if without downstream line pressure, the valve seat of double-piston effect
Component can ensure that valve seat is close to spherical surface and reaches sealing, be two-way double containment type.
The valve seat support ring of the utility model is mainly used for realizing the sealing between valve body and sphere and fire-proof function, this reality
Mainly realize to draw valve seat support ring and cooperatively do the reciprocating movement of similar piston and work as have greasing with new valve cup ring
It is required that when, greasing passage is built between extraneous and sphere.
The first entering pressure hole and second that the utility model is entered by being respectively arranged to fluid in retainer ring and valve body
Entering pressure hole, injection constant pressure fluid (gas or liquid), acts on corresponding closed cavity：First annular seal space and the second sealing
Chamber realizes the valve component of double-piston effect in the in vivo reciprocating movement of valve, to meet the requirement of assembly or disassembly.
The utility model has fluid using the Seal Design for this repetition of valve component for being arranged on sphere both sides dual
It is poor can to bear total head per one side for barrier effect, and if when ensureing one side seal failure, opposite side remains to seal.This practicality is new
Type can ensure that the continuous longtime running of valve, safe and reliable, fully meets similar working condition requirement, has higher reliability, sealing
Property and long-life.
Further, in the utility model preferred embodiment, above-mentioned valve component further includes the first sealing ring and prevents
Pyrosphere, the first sealing ring and fire-protection ring may be contained between valve cup ring and valve seat support ring, and fire-protection ring is arranged at the first sealing ring
In the circle of restriction.
The utility model sets the first sealing ring and fire-protection ring between valve cup ring and valve seat support ring, can further serve as
To sealing, fireproof effect.First sealing ring of the utility model is O-ring seals.
Further, the second sealing is equipped in the utility model preferred embodiment, between above-mentioned valve body and valve cup ring
Circle is equipped with the 3rd sealing ring between valve body and retainer ring, the 4th sealing ring, the second sealing are equipped between retainer ring and valve cup ring
Circle, the 3rd sealing ring, the 4th sealing ring, valve body, valve cup ring and retainer ring limit first annular seal space.
Further, in the utility model preferred embodiment, above-mentioned second sealing ring, valve body and valve cup ring limit
Second annular seal space.
Further, in the utility model preferred embodiment, the extension of above-mentioned first entering pressure hole and the second entering pressure hole
The access opening direction of flange of the direction with being arranged on valve body is consistent.
Further, it is above-mentioned to dismount top mounting ball valve online and further include /V in the utility model preferred embodiment
Block, retainer ring are fixed on by limited block on valve body, and the first /V with limited block cooperation is respectively equipped on valve body and retainer ring
Groove and the second limiting groove.
Further, in the utility model preferred embodiment, the above-mentioned top mounting ball valve that can dismount online further includes positioning
Block, valve cup ring and retainer ring are fixed on by locating piece on valve body, and retainer ring has the positioning through hole with locating piece cooperation, valve body
The first positioning groove and the second positioning groove with locating piece cooperation are respectively provided with valve cup ring.
The utility model is arranged on locating piece between valve body and valve cup ring by being packed into or removing, and realizes double-piston effect valve
The final of holder assembly is accurately positioned, and meets the requirement of assembly or disassembly.
Further, in the utility model preferred embodiment, the above-mentioned top mounting ball valve that can dismount online further includes emptying
Pressure release component, blowdown pressure letdown component are installed on valve body or valve deck, and blowdown pressure letdown component is connected with the inner cavity of valve body.
The utility model carries out pressure release by the blowdown pressure letdown component being installed on valve body or valve deck to valve inner, avoids
Double-piston effect valve component sealing structure may caused by the pressure medium of valve body middle chamber the problem of raising extremely, ensure that
The security of ball valve work.
Further, it is above-mentioned to dismount top mounting ball valve online and further include valve rod in the utility model preferred embodiment
And valve rod driving device, one end of valve rod are connected through valve deck with sphere, the other end of valve rod is connected with valve rod driving device.
The utility model has the advantages that：
The utility model meets user to the top mounting ball valve with double-piston effect two way seal that dismounts online
Function needs.The valve component of the double-piston effect of the utility model is designed using separate type, function modoularization, valve seat support ring
Main to realize sealing, fire-proof function, valve cup ring mainly realizes that traction valve seat support ring does similar piston by Special clamping frock
It moves back and forth function and builds the function of greasing passage, solve existing integral type valve seat hidden danger that may be present.
The valve seat support ring of the utility model is moved together with valve cup ring, when moving, static compared with valve cup ring, is oriented to
Property is good, and stability is good, without acceptance of persons, no card resistance.First sealing ring of sealing medium in the valve seat support ring of the utility model
Axial smaller shift reciprocately can just be generated at work by having, and abrasion is small, and service life is long.The spiral compression spring of the utility model
Length dimension greatly shortens, and stability is strong, and working condition is steady.The utility model realizes higher sealing reliability, longer
Service life, meet top mounting ball valve fire prevention, online greasing requirement, easily facilitate the online assembly or disassembly of top mounting ball valve.
Description of the drawings
Fig. 1 is the structure diagram that can dismount top mounting ball valve online of the utility model embodiment；
Fig. 2 can dismount partial sectional view of the top mounting ball valve along A-A online for the utility model embodiment；
Fig. 3 is the partial enlarged view at I in Fig. 1；
Fig. 4 is the partial enlarged view at II in Fig. 1；
Fig. 5 is the structure diagram of the blowdown pressure letdown component that can dismount top mounting ball valve online of the utility model embodiment；
Fig. 6 is the partial structural diagram that can dismount top mounting ball valve online of utility model embodiment, horizontal arrow in figure
Represent media flow direction.
In figure：1- can dismount top mounting ball valve online；10- valve bodies；The first limiting grooves of 101-；The first positioning grooves of 102-；
The second entering pressure holes of 103-；The second annular seal spaces of 104-；105- sliding bearings；106- thrust bearings；20- valve decks；30- spheres；40- valves
Holder assembly；401- valve cup rings；402- valve seat support rings；403- valve seats；404- spiral compression springs；The first sealing rings of 405-；
406- fire-protection rings；50- retainer rings；The first entering pressure holes of 501-；502- first annular seal spaces；The second sealing rings of 503-；504- the 3rd is close
Seal；The 4th sealing rings of 505-；506- positioning through hole；60- limited blocks；The second limiting grooves of 601-；70- locating pieces；701-
Two positioning grooves；80- blowdown pressure letdown components；81- connectors；83- block valves；84- threeways；85- blow valves；86- relief valves；87-
Blowdown pressure letdown pipe；90- valve rods；901- valve rod driving devices.
Specific embodiment
The principle and feature of the utility model are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
Embodiment
Referring to Fig.1 and 2, can dismount top mounting ball valve 1 online includes：Valve body 10, valve deck 20, sphere 30, valve component
40th, retainer ring 50, limited block 60, locating piece 70, blowdown pressure letdown component 80, valve rod 90 and valve rod driving device 901.Valve deck 20 is solid
Due to the top of valve body 10.Sphere 30 is arranged in valve body 10.Two groups of valve components 40 are respectively arranged at the both sides of sphere 30.Gu
Determine ring 50 and connect valve body 10 and valve component 40.Retainer ring 50 is fixed on by limited block 60 on valve body 10.Valve cup ring 401 and solid
Determine ring 50 to be fixed on valve body 10 by locating piece 70.Blowdown pressure letdown component 80 is installed on valve body 10 or valve deck 20, and is put
Empty pressure release component 80 is connected with the inner cavity of valve body 10.One end of valve rod 90 is connected through valve deck 20 with sphere 30, valve rod 90 it is another
One end is connected with valve rod driving device 901.
Fig. 2 is refer to, valve component 40 includes valve cup ring 401, valve seat support ring 402, valve seat 403, spiral compression spring
404th, the first sealing ring 405 and fire-protection ring 406.Valve cup ring 401 is connected with valve body 10.Valve seat support ring 402 is arranged at valve cup ring
Between 401 and sphere 30.Valve seat 403 and spiral compression spring 404 are respectively arranged in valve seat support ring 402.Valve seat support ring
402 coordinate respectively with valve cup ring 401 and sphere 30, and valve seat support ring 402 passes through spiral compression spring 404 and valve cup ring
401 connections.Valve seat 403 is arranged on the side with 30 form fit of sphere of valve seat support ring 402 and valve seat 403 and sphere
30 Elastic Contacts.Valve seat 403 is the elastic ring that section is triangle, one of apex angle and 30 Elastic Contact of sphere.First is close
Seal 405 and fire-protection ring 406 may be contained between valve cup ring 401 and valve seat support ring 402.It is close that fire-protection ring 406 is arranged at first
In the circle that seal 405 limits.In the embodiment shown in fig. 2, the quantity of the first sealing ring 405 is 2.
Fig. 2 and Fig. 3 are refer to, retainer ring 50 is fixed on valve body 10.As shown in figure 3, retainer ring 50 has for fluid
The first entering pressure hole 501 entered, valve body 10, valve cup ring 401 and retainer ring 50 limit first connected with the first entering pressure hole 501
Annular seal space 502.For the ease of identification, in figure, first annular seal space 502 is special is shown with filling forms, but is in fact cavity.Valve body
The second sealing ring 503 is equipped between 10 and valve cup ring 401, the 3rd sealing ring 504 is equipped between valve body 10 and retainer ring 50, it is fixed
The 4th sealing ring 505 is equipped between ring 50 and valve cup ring 401.Second sealing ring 503, the 3rd sealing ring 504, the 4th sealing ring
505th, valve body 10, valve cup ring 401 and retainer ring 50 limit first annular seal space 502.As shown in figure 3, valve body 10 has to flow
The second entering pressure hole 103 that body enters, valve body 10 and valve cup ring 401 limit the second annular seal space connected with the second entering pressure hole 103
104.Equally, for the ease of identifying, the second annular seal space 104 is also shown with filling forms in figure, but is in fact cavity.Second is close
Seal 503, valve body 10 and valve cup ring 401 limit the second annular seal space 104.First entering pressure hole 501 and the second entering pressure hole 103 are prolonged
The access opening direction for stretching flange of the direction with being arranged on valve body 10 is consistent.
Fig. 2 and Fig. 4 are refer to, limited block 60 is arranged between retainer ring 50 and valve body 10.Retainer ring 50 passes through limited block
60 are fixed on valve body 10.Be respectively equipped on valve body 10 and retainer ring 50 with limited block 60 coordinate the first limiting groove 101 and
Second limiting groove 601.Limited block 60 is arranged in the first limiting groove 101 and the second limiting groove 601.
It refer to Fig. 2 and Fig. 4,70 connection valve seat ring 401 of locating piece, retainer ring 50 and valve body 10.Valve cup ring 401 and fixation
Ring 50 is fixed on by locating piece 70 on valve body 10.Retainer ring 50 has the positioning through hole 506 coordinated with locating piece 70.Valve body 10
The first positioning groove 102 and the second positioning groove 701 coordinated with locating piece 70 is respectively provided with valve cup ring 401.Locating piece 70
Through the positioning through hole 506 on solid ring, both ends are respectively engaged in the first positioning groove 102 and the second positioning groove 701, from
And valve cup ring 401, retainer ring 50 are connected into fixation with 10 three of valve body.
Fig. 5 is refer to, blowdown pressure letdown component 80 is installed on valve body 10 or valve deck 20, and blowdown pressure letdown component 80 and valve
The inner cavity connection of body 10.
As shown in figure 5, blowdown pressure letdown component 80 include connector 81, block valve 83, threeway 84, blow valve 85, relief valve 86,
Blowdown pressure letdown pipe 87；Blowdown pressure letdown pipe 87 is welded to connect respectively with block valve 83 and threeway 84, blow valve 85, relief valve 86 and three
After logical 84 threaded connection blowdown pressure letdown is formed after being finally welded to connect with valve body 10 or valve deck 20 with connector 81 by being welded to connect
Component 80；
The operation principle of the blowdown pressure letdown component 80 of the utility model is：During work, block valve 83 is in opening, puts
Empty pressure release component 80 is in valve chamber and connects, the pressure value of releasing of pre-set relief valve 86, is situated between in 1.1~1.3 times of valve chambers
Matter pressure, when reach release pressure value when, relief valve 86 automatically turns on, by relief valve 86 realize valve chamber in be situated between outside valve chamber
Safety relief avoids the generation of top mounting ball valve housing bursting accident being likely to occur；If user needs, can by blow valve 85
To realize manual bleeder valve intracavitary pressure medium；If valve chamber need to be cleaned, removable lower blow valve 85, is noted by this connector after pressure release
Enter fluid, it can be achieved that cleaning.
Below process is mounted and dismounted online to the utility model to illustrate.
First, install
First, by valve cup ring 401 and valve seat support ring 402, by Special clamping frock, (valve seat support ring is pressed from both sides with valve cup ring
Tight frock) entirety temporarily is connected as, limited block 60 is arranged in the first limiting groove 101 and the second limiting groove 601,
Retainer ring 50 is fixed on valve body 10.Then, constant pressure fluid is injected from the first entering pressure hole 501 in retainer ring 50
(gas or liquid), the fluid matasomatism of injection is in close by valve body 10, valve cup ring 401, retainer ring 50, the second sealing ring the 503, the 3rd
The first annular seal space 502 that 504 and the 4th sealing ring 505 of seal is formed so that valve cup ring 401 drives valve seat support ring 402 together
Away from sphere 30, and reach and subscribe position.Identical operation and flow are recycled, the valve component 40 for making 30 opposite side of sphere is remote
From sphere 30, and reach and subscribe position.
So far, by above-mentioned steps, the space between two valve components 40 can ensure after being packed into sphere 30, along valve body
10 with 20 joint face access opening of valve deck, be sequentially loaded into sliding bearing 105 in the 90 hole (not shown) of lower valve rod of valve body 10 and end face
After thrust bearing 106, the sphere 30 being in the open position is packed into 90 hole of lower valve rod of valve body 10 by hole for hoist.Then,
Constant pressure fluid (gas or liquid) and the Special clamping frock in retainer ring 50 are removed respectively.Second on valve body 10 again
Constant pressure fluid (gas or liquid) is injected in entering pressure hole 103, is acted on by valve body 10, valve cup ring 401, the second sealing ring
503 the second annular seal spaces 104 formed so that valve cup ring 401 drives sphere 30 closely together of valve seat support ring 402, makes valve seat branch
The valve seat 403 held on circle fits closely sealing with the realization of sphere 30.Then, the constant pressure fluid (gas on valve body 10 is removed
Or liquid) and Special clamping frock, locating piece 70 is installed in the first positioning groove 102 and the second positioning groove 701, it will
Valve cup ring 401 and retainer ring 50 are fixed on valve body 10, so as to fulfill the final location and installation of valve component 40.
Finally, the parts such as valve rod 90, valve deck 20, valve rod driving device 901 are sequentially loaded into, complete the final of top mounting ball valve
Assembling.
2nd, dismantle
During dismounting, sphere 30 is in the open position, removes valve rod driving device 901, valve deck 20 and valve rod 90 etc. zero
After part, valve cup ring 401 and valve seat support ring 402 are temporarily connected as an entirety with Special clamping frock.Then, installing is removed
Locating piece 70 in the first positioning groove 102 and the second positioning groove 701.From 501 note of the first entering pressure hole in retainer ring 50
Enter constant pressure fluid (gas or liquid) and act on first annular seal space 502 so that valve cup ring 401 drives valve seat support ring 402
Together away from sphere 30, and reach and subscribe position.Identical operation and flow are recycled, makes the valve component of 30 opposite side of sphere
40 away from sphere 30, and reaches and subscribe position.
So far, by above-mentioned steps, the space between two valve components 40 can ensure after removing sphere 30, remove ball
After body 30, thrust bearing 106 and sliding bearing 105, constant pressure fluid (gas or liquid) in retainer ring 50 and specially is removed
Use clamping tool.Constant pressure fluid (gas or liquid) is injected in the second entering pressure hole 103 on valve body 10 again, acts on the
Two annular seal spaces 104 so that valve cup ring 401 drives sphere 30 closely together of valve seat support ring 402.After in place, remove on valve body 10
Constant pressure fluid (gas or liquid) and Special clamping frock, dismounting be installed in the first limiting groove 101 and the second /V
Limited block 60 in groove 601 removes retainer ring 50, valve seat support ring 402 and valve cup ring 401, so as to fulfill valve seat group successively
The final dismounting of part 40.Using identical operation and flow, the dismounting of the valve component 40 of 30 opposite side of sphere is realized.It is final complete
Into the dismounting of top mounting ball valve.
In conclusion the top with double-piston effect two way seal provided by the utility model that can be dismounted online
Ball valve is filled, realizes double-piston effect two way seal function, effective the first sealing ring 405 for extending sealing medium uses the longevity
Life, and the working condition of spiral compression spring 404 is more stablized, sphere 30 and the sealing performance of valve seat 403 are more preferable, carry
High service life.Moreover, the utility model reduces assembly or disassembly difficulty, meet fire prevention, greasing requirement, it can be achieved that online
Dismounting and repair.In addition, by the blowdown pressure letdown component 80 for being installed on valve body 10 or valve deck 20 and being connected with 10 inside of valve body, have
After 10 interior media pressure anomaly of valve body rise caused by solving to effect 40 sealing structure of double-piston effect valve component possibility
Automatic the problem of releasing.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within new spirit and principle, any modifications, equivalent replacements and improvements are made should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. one kind can dismount top mounting ball valve online, which is characterized in that including valve body, be fixed on the valve deck of the body top, set
It is placed in the in vivo sphere of the valve, two groups of valve components for being respectively arranged at the sphere both sides and the connection valve body and institute
State the retainer ring of valve component；
Wherein, the valve component include the valve cup ring being connected with the valve body, be arranged at the valve cup ring and the sphere it
Between valve seat support ring and the valve seat and spiral compression spring that are respectively arranged in the valve seat support ring, the valve seat supporting
Circle coordinates respectively with the valve cup ring and the sphere, and the valve seat support ring by the spiral compression spring with it is described
Valve cup ring connects, and the valve seat is arranged on the side with spheroid form cooperation of the valve seat support ring and the valve
Seat and the sphere Elastic Contact；
The retainer ring is fixed on the valve body, and the retainer ring has the first entering pressure hole entered for fluid, the valve
Body, the valve cup ring and the retainer ring limit the first annular seal space connected with first entering pressure hole, and the valve body has
For the second entering pressure hole that fluid enters, the valve body and the valve cup ring limit second connected with second entering pressure hole
Annular seal space.
2. according to claim 1 can dismount top mounting ball valve online, which is characterized in that the valve component further includes first
Sealing ring and fire-protection ring, first sealing ring and the fire-protection ring may be contained within the valve cup ring and the valve seat support ring it
Between, the fire-protection ring is arranged in the circle that first sealing ring limits.
3. according to claim 1 can dismount top mounting ball valve online, which is characterized in that the valve body and the valve cup ring it
Between be equipped with the second sealing ring, the 3rd sealing ring, the retainer ring and the valve seat are equipped between the valve body and the retainer ring
The 4th sealing ring, second sealing ring, the 3rd sealing ring, the 4th sealing ring, the valve body, institute are equipped between ring
It states valve cup ring and the retainer ring limits the first annular seal space.
4. according to claim 3 can dismount top mounting ball valve online, which is characterized in that second sealing ring, the valve
Body and the valve cup ring limit second annular seal space.
5. according to claim 1 can dismount top mounting ball valve online, which is characterized in that first entering pressure hole and described
The access opening direction of flange of the extending direction of two entering pressure holes with being arranged on the valve body is consistent.
6. top mounting ball valve can be dismounted according to claim 1-5 any one of them online, which is characterized in that described to dismount online
Top mounting ball valve further includes limited block, and the retainer ring is fixed on by the limited block on the valve body, the valve body and described
The first limiting groove and the second limiting groove with limited block cooperation are respectively equipped in retainer ring.
7. according to claim 6 can dismount top mounting ball valve online, which is characterized in that described to dismount top mounting ball valve online
Locating piece is further included, the valve cup ring and the retainer ring are fixed on by the locating piece on the valve body, the retainer ring
With the positioning through hole coordinated with the locating piece, the valve body and the valve cup ring are respectively provided with and locating piece cooperation
First positioning groove and the second positioning groove.
8. according to claim 1 can dismount top mounting ball valve online, which is characterized in that described to dismount top mounting ball valve online
Blowdown pressure letdown component is further included, the blowdown pressure letdown component is installed on the valve body or the valve deck, and the emptying is let out
Pressure component is connected with the inner cavity of the valve body.
9. according to claim 1 can dismount top mounting ball valve online, which is characterized in that described to dismount top mounting ball valve online
Valve rod and valve rod driving device are further included, one end of the valve rod is connected through the valve deck with the sphere, the valve rod
The other end is connected with the valve rod driving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721557435.1U CN207454817U (en) | 2017-11-20 | 2017-11-20 | One kind can dismount top mounting ball valve online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721557435.1U CN207454817U (en) | 2017-11-20 | 2017-11-20 | One kind can dismount top mounting ball valve online |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454817U true CN207454817U (en) | 2018-06-05 |
Family
ID=62276793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721557435.1U Active CN207454817U (en) | 2017-11-20 | 2017-11-20 | One kind can dismount top mounting ball valve online |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107747633A (en) * | 2017-11-20 | 2018-03-02 | 四川飞球（集团）有限责任公司 | One kind can dismount top mounting ball valve online |
-
2017
- 2017-11-20 CN CN201721557435.1U patent/CN207454817U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107747633A (en) * | 2017-11-20 | 2018-03-02 | 四川飞球（集团）有限责任公司 | One kind can dismount top mounting ball valve online |
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