CN204878838U - There is not wearing and tearing pressure boost ball valve - Google Patents

There is not wearing and tearing pressure boost ball valve Download PDF

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Publication number
CN204878838U
CN204878838U CN201520421946.5U CN201520421946U CN204878838U CN 204878838 U CN204878838 U CN 204878838U CN 201520421946 U CN201520421946 U CN 201520421946U CN 204878838 U CN204878838 U CN 204878838U
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CN
China
Prior art keywords
piston
valve
sphere
wearing
tearing
Prior art date
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Withdrawn - After Issue
Application number
CN201520421946.5U
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Chinese (zh)
Inventor
陈元芳
汪远航
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Guangxi Haofeng Fluid Engineering Technology Co Ltd
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Guangxi Haofeng Fluid Engineering Technology Co Ltd
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Priority to CN201520421946.5U priority Critical patent/CN204878838U/en
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Publication of CN204878838U publication Critical patent/CN204878838U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a there is not wearing and tearing pressure boost ball valve, including the valve rod that valve body, case and control spool rotation switch, the valve body is equipped with the runner, and the case is equipped with the passageway that can communicate the runner, wherein: the case side is equipped with the piston chamber, is equipped with the flexible sphere piston that can seal the runner in the piston chamber, is equipped with the flexible switching of the pressure boost mechanism controls sphere piston of connecting the piston chamber on the valve body, the invention has advantages of long service life, ON / OFF moment is little, and flow resistance coefficient is little, and energy -conservation is effectual and make, install, maintain simple and convenient technological effect.

Description

A kind of without wearing and tearing supercharging ball valve
Technical field
The utility model relates to a kind of ball valve, particularly a kind of without wearing and tearing supercharging ball valve.
Background technique
The some problem that current valve exists:
One, about problem in working life
Working life is the important technical order of valve mass, and engineering expects to have an intact sealing pair (Sealing of valve body and valve seat part, lower with) in life cycle, and its sealability should reach the requirement of standard.
Valve is in order to reach reliable sealing, need to increase larger seal pressure between sealing pair, i.e. extruding mutually, in unlatching or closing process, the result of relative movement there will be scratch phenomenon, serious scratch (even if more small cut) will make valve loss of seal performance, and valve needs to change or maintenance.
Head it off has approach below:
1, the apolegamy of sealing pair material:
(1) wear-resisting, heatproof is adopted but expensive metal (as cobalt-chromium-tungsten alloy).In important and that seal request is high occasion, this scheme of multiselect.
(2) sealing pair reasonably matches, as the pairing of different materials, or two intermetallic difference of hardness etc.
Above-mentioned two schemes, any possibility that all there is scratch and destroy, just relatively improving life cycle, is not the most perfect solution.
2, architecture advances
The artificer of valve industry constantly strives to find a kind of new structural type, attempts to avoid being scratched in relative movement, and as orbit ball valve, three eccentric butterfly valve etc., these are all inevitably producing scratch instantaneously, but can be very significantly improved.
Two, about operational torque problem
The steering force of General valve is all larger, and a people or two people cannot ON/OFF sometimes, needs to rely on turbine worm device or pneumatic, Electric actuator.No matter gate valve, stop valve or ball valve are not always the case.Such as PN4.0MPa, DN100 ball valve, operating grip length is greater than 650mm.Operational torque is greater than 350N/M.
Three, reduce flow resistance coefficient, reducing energy consumption has very significance for energy-conservation.
The flow resistance coefficient of general-purpose gate valve, stop valve is larger.
Four, manufacture, I&M problem
The maximum difficulty of General valve manufacture is sealing pair, and as the valve plate of gate valve and the Percent of contact area of valve seat, the requirement on machining accuracy such as the spheroid circularity of ball valve are high.It is also very difficult for maintaining.Meanwhile, General valve does not show operational torque, brings much inconvenience to design and operation.
Therefore, how to solve the problem, become problem demanding prompt solution.
Model utility content
The technical problems to be solved in the utility model is to provide long service life, ON/OFF moment is little, and flow resistance coefficient is little, and good energy-conserving effect and the easy one of manufacture, installation, maintenance are without wearing and tearing supercharging ball valve.
For solving the problems of the technologies described above, of the present utility model a kind of without wearing and tearing supercharging ball valve, comprise the valve rod that valve body, spool and control spool rotary cutting change, valve body is provided with runner, spool is provided with the passage that can be communicated with runner, wherein: spool side is provided with piston cavity, being provided with in piston cavity can the flexible sphere piston of closed flow, and valve body is provided with the booster body connecting piston cavity and controls that sphere piston is flexible to be switched.
Adopt the technical solution of the utility model of said structure, the fluid in booster body enters piston cavity through Pressure channel and acts on sphere piston, by controlling hydrodynamic pressure, sphere piston can be made to produce fore and aft motion.During outside elongation, then compress valve seal ring to reach the requirement of sealing; When sphere piston inwardly shrinks, sphere and valve seat form a suitable gap between the two.Now handle with sleeve, valve just can be in unlatching or closed condition.Due to the existence in gap, therefore opening or closing in process at valve, its sealing pair can not produce scratch wear-out failure, and its operational torque is also very little.
Wherein can compress or unclamp the internal orifice of runner by sphere piston fore and aft motion, outside the sphere piston realizing spool, between sphere and the internal orifice of runner, form open gap.The internal orifice sealing that positive pressure seal pressure realizes active compression runner initiatively can be applied when sealing, lead to initiatively step-down during unlatching and make, between the sealing pair of valve core, there is open gap, in unlatching or closing process, sealing pair does not contact, all the time there is suitable gap, so just can not produce the phenomenon that scratch destroys.Zerofriction force square between the sealing pair of valve core and valve body is only the weight of spool and the friction torque of booster body place Y shape circle is very little, very easily just can carry out on/off operation.The sphere sealing element of this patent is truncated-spherical, be not whole spheroid, and seal pressure is positive pressure, therefore for sphere processing request far below Integral ball.Keep in repair also not difficult.In addition this patent belongs to roof-mounted, does not need to remove can carry out maintenance work from pipeline during maintenance valve.
Further improvement of the utility model technological scheme:
Above-mentioned nothing wearing and tearing supercharging ball valve, booster body comprises supercharging cylinder body, nut, charged piston and piston rod, nut arranges supercharging cylinder body top, piston rod is screwed onto in nut, lower end connects charged piston, valve rod intert charged piston and piston rod axis, it is innerly connected spool, extend outer end wall establishes the booster cavity pulled screw socket, be axially arranged with axial passage connection supercharging cylinder body.
Above-mentioned nothing wearing and tearing supercharging ball valve, spool is provided with the Pressure channel that piston cavity is connected with booster body.
Above-mentioned nothing wearing and tearing supercharging ball valve, runner is straight-through runner, and sphere piston is symmetricly set on passage both sides.
Above-mentioned nothing wearing and tearing supercharging ball valve, supercharging cylinder body is provided with support plate and Anti-rotary block, and nut is positioned between support plate and Anti-rotary block.
Above-mentioned nothing wearing and tearing supercharging ball valve, valve rod top is provided with jump ring, bottom is provided with boss, outer end is connected with pressure gauge, establishes step position in charged piston, and upper jump ring is positioned at piston rod upper end, and boss is arranged in step position.
Above-mentioned nothing wearing and tearing supercharging ball valve, the outside of flexible sphere piston is sphere, axle is established in inner side, side wall surface is provided with piston ring, and piston cavity is provided with the positioning seat of apotting spindle, is provided with the butterfly spring of at least one pair of between positioning seat and apotting spindle.
Above-mentioned nothing wearing and tearing supercharging ball valve, valve body comprises bottom flange, and booster body and valve rod are arranged on bonnet.
Above-mentioned nothing wearing and tearing supercharging ball valve, rotary spool comprises upper and lower rotatingshaft, and the inner of valve rod connects the upper rotatingshaft of rotary spool, and Pressure channel connects booster cavity by upper rotatingshaft.
Above-mentioned nothing wearing and tearing supercharging ball valve, the internal orifice of runner is provided with the seal ring suitable with sphere.
Adopt technique scheme the utility model, by nut, the piston rod lifting linkage charged piston be screwed onto in nut is elevated at supercharging cylinder body, when charged piston declines, compression booster cavity realizes the technique effect of supercharging.The booster cavity that valve rod is axially arranged with axial passage connection supercharging cylinder body adds liquid (as water or oil) in advance before making, as the pressure carrier transfer passage of booster cavity while the effect playing rotary spool, and by arranging the pressure of pressure gauge monitoring booster cavity in valve rod upper end.
1, when valve wide open, the operation of closing is needed:
In valve wide open state, the booster cavity of booster body 4 and piston cavity hydrodynamic pressure are zero, and there is gap between the sphere of sphere piston and valve base sealing ring, and therefore the steering force of valve rod rotational valve core is very little.And sealing pair does not abrade the destruction of wearing and tearing.When needing throttle down in the case, first by pulling clockwise with the handle of screw socket buckle and being with ovable valve stem 90-degree rotation.Spool is closed to precalculated position, and both sphere piston was relative with the internal orifice of runner, makes spool arrive pre-shutdown state.Now booster body underpressure, forms gap between the outside sphere of sphere piston and valve base sealing ring.
After pre-shutdown action completes, rotate handwheel drive nut rotation, the valve rod matched with it all adopts trapezoidal thread transmission, and owing to settling Anti-rotary block at dunnage place, therefore piston rod can only do straight line motion.The upper and lower straight line motion of charged piston is driven at nut.Valve rod is positioned at piston rod screens by upper jump ring is relative with piston step fixing.When piston is downward, be with ovable valve stem to move down, so cavity fluid pressure raises gradually, piston type booster cavity inner chamber and spool are to being communicated with, and its internal pressure also increases simultaneously.The axial force compression belleville spring of sphere piston, make two only spheres and outwards movement, sphere just compresses valve base sealing ring.When pressure be increased to make sealing pair reach seal request time, send out just realize full off state.
After meanwhile valve rod moves down, its rotor plate mouth is hidden among nut, cannot the rotation of operating valve lever.Be unlikely to occur malfunction part.The numerical value of pressure gauge display pressure.
2, during valve complete shut-down, the operation of opening is needed:
At valve full off state, the hydrodynamic pressure of booster body level piston cavity reaches the pressure needed for sealing.When needs are opened, first intrasystem pressure to be reduced until be zero.
Its operation rotates counterclockwise handwheel and drives piston upwards, is with ovable valve stem axially upwardly to move simultaneously.So the hydrodynamic pressure of the booster cavity of booster body 4 and sphere piston inner chamber reduces gradually, until be zero.Now under the rebounding force of butterfly spring and pressure medium effect, shunk by two independent sphere pistons, sphere is lifted off a seat seal ring, and forms a suitable gap.
Meanwhile, after valve rod moves up, its rotor plate mouth exposes on nut, and utilize spanner by being rotated counterclockwise 90 degree, valve just realizes full-gear.Owing to there is gap between sphere and valve base sealing ring, the overall process of opening, sealing pair can not produce the destruction of scratch wearing and tearing.
By nut, charged piston is elevated with control media pressure, during decline, compresses the technique effect that booster cavity realizes supercharging.
Adopt technique scheme the utility model to be rotation gate, namely such valve can realize with less torque half-twist opening or closing, and its advantage finds expression in:
1. long service life: the structural design that valve base sealing is secondary special, has a gap between its sealing pair, can not produce scratch and destroy in ON/OFF process, the life-span will be greatly improved;
2. ON/OFF moment is little: maximum ON/OFF moment is to produce friction torque between valve base sealing, and this structure does not exist this friction torque, and its ON/OFF moment is necessarily very little;
3. flow resistance coefficient is little, good energy-conserving effect: in full-gear, and runner is circular, and its diameter is consistent with pipeline, and the energy therefore consumed is very little;
4. manufacture, installation, maintenance are easy;
5. sealing load observable and control;
Structure design principle:
Of the present utility model primarily of two part compositions:
1. booster body
2. telescopic spherical rotary spool.
The principle of structural design of the present utility model is: utilize liquid (as water) incompressible principle, (or reduction) system internal pressure is improved by booster body, pressure is entered spool through inner passage, forms the pressure system of an observable and control thus.There are in valve base sealing pair two independently piston type spheres.Piston type sphere is placed in the spool of rotatable 90 °.When sealing closed by needs, entered the fluid pressure of spool by booster body, utilize sphere piston pressure difference, its axial force compression butterfly spring, make two independently sphere outwards movements, arrive after valve seat and form a pair sealing pair, then increase pressure and just can reach required seal request.Maintaining the closedown namely completing valve under system pressure stable case.
Under the state of valve closing, when needing to open, first system internal pressure is lowered until be zero, now by rebounding force and the pressure medium of butterfly spring, shunk by sphere core, the gap that between sphere and valve seat, appearance one is suitable, rotates counterclockwise spool 90 °, namely valve reaches standard-sized sheet, and this procedure seals is secondary without scratch.
When needing to close under full-gear, dextrorotation rotary plate 90 °, is namely in closed condition, more just can reach seal request by said procedure pressurization, and this closing process sealing pair is also without scratch.
Telescopic spherical rotary valve core structure: sphere is the constituent element of valve seal pair.Sphere piston is placed in the spool of rotatable 90 °, its unique distinction is scalable, when needs seal, pressurizeed by booster body, utilize sphere piston pressure difference (namely booster body pressure is greater than valve working pressure), the axial force compression butterfly spring of piston, make two independently sphere move forward (being namely equivalent to two spheres strut), form a pair sealing pair after arriving valve seat, then increase system pressure, make the seal request that the seal pressure of sealing pair reaches required.
When sealing state needs valve opening, reduce the pressure of booster body, until be zero, due to the counter-force of butterfly spring, two spheres are lifted off a seat, also reaches certain gap.Now, rotate counterclockwise spool 90 °, namely valve reaches standard-sized sheet.When needing to close under full-gear, rotate clockwise spool 90 °, can seal request be reached by said procedure pressurization.In valve core rotation process, because there is gap between valve seat and sphere, so sealing pair absolutely not abrades.Except the factor compressed and wash away, its working life will be greatly improved.Sealing load is observed and the booster body controlled: the observation of sealing load and control are this valve features, can calculate sealed force moment, and also available pressure sensor whole process is observed and controlled.Supercharging principle first makes system be full of liquid (as water), and get rid of intrasystem gas.Due to liquid incompressibility, by rotating handwheel and driving charged piston to move down, original system internal pressure increases, and forces sphere piston outwards movement, reaches required sealing load simultaneously.On the contrary, system internal pressure also can reduce, until be zero, and the so just pressure of energy control system.Can open or close by rotational valve core when system internal pressure reduces to zero.Now the general ball valve of ratio of running torque is much little, comparatively light switch.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but does not form any restriction of the present utility model.
Fig. 1 is the cross-sectional view of the utility model at sphere piston contraction state;
Fig. 2 is the right TV structure schematic diagram of Fig. 1;
Fig. 3 is the cross-sectional view of the utility model at sphere piston stretched condition;
Fig. 4 is the perspective cross section structural representation of the utility model at sphere piston stretched condition;
Fig. 5 is the cross-sectional view of the utility model full-gear;
Fig. 6 is the perspective cross section structural representation of the utility model full-gear;
Fig. 7 is the vertical semi-section structural representation of the utility model spool;
Fig. 8 is the horizontal semi-section structural representation of the utility model spool;
Fig. 9 is the cross-sectional view of the utility model booster body;
Figure 10 is the perspective view of the utility model booster body.
In figure: valve body 1, runner 11, spool 2, passage 21, sphere piston 22, sphere 22a, axle 22b, piston ring 22c, axle 22b, piston ring 22c, piston cavity 23, positioning seat 23a, butterfly spring 24, upper rotatingshaft 25, lower rotatingshaft 26, Pressure channel 27, seal ring 28, valve rod 3, pulls screw socket 31, axial passage 32, upper jump ring 33, boss 34, booster body 4, supercharging cylinder body 41, booster cavity 41a, nut 42, charged piston 43, step position 43a, piston rod 44, support plate 45, Anti-rotary block 46, pressure gauge 5, handle a, handwheel b.
Embodiment
As shown in Fig. 1 ~ Figure 10, of the present utility model a kind of without wearing and tearing supercharging ball valve, comprise valve body 1, spool 2 and control spool 2 and rotate the valve rod 3 switched, valve body 1 is provided with runner 11, spool 2 is provided with the passage 21 that can be communicated with runner 11, spool 2 side is provided with piston cavity 23, and being provided with in piston cavity 23 can the flexible sphere piston 22 of closed flow 11, and valve body 1 is provided with the booster body 4 connecting piston cavity 23 and controls that sphere piston 22 is flexible to be switched.
Booster body 4 comprises supercharging cylinder body 41, nut 42, charged piston 43 and piston rod 44, nut 42 arranges supercharging cylinder body 41 top, piston rod 44 is screwed onto in nut 42, lower end connects charged piston 43, valve rod 3 intert charged piston 43 and piston rod 44 axis, it is innerly connected spool 2, extension outer end wall is established and pulled screw socket 31, is axially arranged with the booster cavity 41a that axial passage 32 is communicated with supercharging cylinder body 41.
Spool 2 is provided with the Pressure channel 27 that piston cavity 23 is connected with booster body 4.
Runner 11 is straight-through runner, and sphere piston 22 is symmetricly set on passage 21 both sides.
Supercharging cylinder body 41 is provided with support plate 45 and Anti-rotary block 46, and nut 42 is positioned between support plate 45 and Anti-rotary block 46.
Valve rod 3 top is provided with jump ring 33, bottom is provided with boss 34, outer end is connected with pressure gauge 5, establishes step position 43a in charged piston 43, and upper jump ring 33 is positioned at piston rod 44 upper end, and boss 34 is arranged in step position 43a.
The outside of flexible sphere piston 22 is sphere 22a, axle 22b is established in inner side, side wall surface is provided with piston ring 22c, and piston cavity 23 is provided with the positioning seat 23a of apotting spindle 22b, is provided with the butterfly spring 24 of at least one pair of between positioning seat 23a and apotting spindle 22b.
Valve body 1 comprises bottom flange 11,12, and booster body 4 and valve rod 3 are arranged on bonnet 11.
Rotary spool 2 comprises upper and lower rotatingshaft 25,26, and the inner of valve rod 3 connects the upper rotatingshaft 25 of rotary spool 2, and Pressure channel 27 connects booster cavity 41a by upper rotatingshaft 25.
The internal orifice of runner 11 is provided with the seal ring 28 suitable with sphere 22a.
It is 180 degree straight-through that the passage 21 of spool 2 is the most often applied, but can also be applied as the two-way of other angle or threeway etc., and three general rule correspondences arrange sphere piston 22.
Sphere 22a outside sphere piston 22 can be hemisphere face also can be part sphere.
Piston type booster body 4 also can be Automatic-boosting mechanism, realizes automatically controlling and the pressure of monitoring increase and decrease in real time by Automatic-boosting mechanism.Valve rod 3 also can be connect automatic rotation mechanism to realize automatically rotating opening and spool of closing the door.The nut 42 of piston type booster body also can connect automatic rotation mechanism, realizes automation and rotates control.
Concrete service routine of the present utility model:
1, at valve wide open, when needing throttle down:
As shown in Figure 5 and Figure 6, in valve wide open state, the booster cavity 41a of booster body 4 and the hydrodynamic pressure of piston cavity 21 are zero, and there is gap between the internal orifice of the sphere of sphere piston and valve seat runner 11, therefore the operational torque of valve rod 3 rotational valve core 2 is very little, and sealing pair does not abrade the destruction of wearing and tearing.In the case, when needing throttle down, first by pulling handle a clockwise, and be with ovable valve stem 3 and spool 2 half-twist, arrival precalculated position, spool closed side, both sphere piston 22 was relative with the internal orifice of runner 11, made spool 2 arrive pre-shutdown state.Now booster body 4 underpressure, forms gap between the outside sphere 22a of sphere piston 22 and the seal ring 28 of valve seat.
As shown in Figure 1 and Figure 4, after pre-shutdown action completes, rotate handwheel b and drive nut 42, the piston rod 44 matched with nut 42 all adopts trapezoidal thread transmission, owing to having settled Anti-rotary block 46 at support plate 45 place, therefore, piston rod 44 can only do straight line and move up and down.
As shown in Figure 3, when nut 42 rotates, drive piston rod 44 and piston 43 to make upper and lower straight line motion, valve rod 3 is fixed on piston by upper jump ring 33 and valve rod boss 34.When piston 43 and valve rod 3 move down, booster cavity 41a and piston cavity 23 are interconnected through runner 21, and raise at booster cavity 41a pressure, the pressure in sphere piston chamber also increases, the axial force of sphere piston 22 will compress butterfly spring 27, make two independently sphere outwards movements.So sphere will compress valve base sealing ring, 13, when pressure be increased to make sealing pair reach sealing to go time, valve just realizes full off state.
Meanwhile, after valve rod 3 moves down, its flap mouth is hidden among nut, cannot the rotation of operating valve lever.Be unlikely to occur malfunction part.Pressure gauge 5 shows the numerical value of pressure.
2, at valve complete shut-down, when needing Open valve:
At valve full off state, the hydrodynamic pressure of booster body 4 and piston cavity reaches the pressure needed for sealing, when needs are opened, first will reduce intrasystem pressure until be zero.
Its operation rotates counterclockwise handwheel 6, and drive piston 43 upwards, and colleague's band ovable valve stem 3 axially upwardly moves.So the booster cavity 41a of booster body 4 and the hydrodynamic pressure in sphere piston chamber 23 reduce gradually until be zero.Now under the rebounding force of butterfly spring 27 and the effect of pressure medium, shunk by two independent sphere pistons 43, sphere is just lifted off a seat seal ring 48, defines a suitable gap simultaneously.
As shown in Figure 9, meanwhile, after valve rod 3 moves up, its rotor plate mouth exposes on nut 42.Utilize spanner a, by being rotated counterclockwise 90 °, valve just realizes full-gear.Pressure gauge is then shown as zero.
As shown in figures 1 and 3, owing to there is gap between sphere and valve base sealing ring, scratch wear-out failure can not be produced at the overall process sealing pair opened.
In sum, the utility model, as specification and diagramatic content, makes actual sample and through repeatedly use test, from the effect of use test, provable the utility model can reach its desired object, and practical value is unquestionable.Above illustrated embodiment is only used for conveniently illustrating the utility model.Above-mentionedly not any pro forma restriction is done to the utility model, have in any art and usually know the knowledgeable, if do not depart from the utility model carry in the scope of technical characteristics, utilize the utility model disclose the Equivalent embodiments changing or modify in the done local of technology contents, and do not depart from technical characteristics content of the present utility model, all still belong in the scope of the utility model technical characteristics.

Claims (10)

1. a nothing wearing and tearing supercharging ball valve, comprise valve body (1), spool (2) and control spool (2) rotate the valve rod (3) switched, valve body (1) is provided with runner (11), spool (2) is provided with the passage (21) that can be communicated with runner (11), it is characterized in that: spool (2) side is provided with piston cavity (23), being provided with in piston cavity (23) can the flexible sphere piston (22) of closed flow (11), valve body (1) is provided with the booster body (4) connecting piston cavity (23) and controls the flexible switching of sphere piston (22).
2. according to claim 1 without wearing and tearing supercharging ball valve, it is characterized in that: booster body (4) comprises supercharging cylinder body (41), nut (42), charged piston (43) and piston rod (44), nut (42) arranges supercharging cylinder body (41) top, piston rod (44) is screwed onto in nut (42), lower end connects charged piston (43), the interspersed charged piston (43) of valve rod (3) and piston rod (44) axis, its inner connection spool (2), extension outer end wall is established and is pulled screw socket (31), be axially arranged with the booster cavity (41a) that axial passage (32) is communicated with supercharging cylinder body (41).
3. according to claim 2 without wearing and tearing supercharging ball valve, it is characterized in that: spool (2) is provided with the Pressure channel (27) connecting piston cavity (23) and booster cavity (41a).
4. according to claim 1 without wearing and tearing supercharging ball valve, it is characterized in that: runner (11) is straight-through runner, and sphere piston (22) is symmetricly set on passage (21) both sides.
5. according to claim 2 without wearing and tearing supercharging ball valve, it is characterized in that: supercharging cylinder body (41) is provided with support plate (45) and Anti-rotary block (46), and nut (42) is positioned between support plate (45) and Anti-rotary block (46).
6. according to claim 2 without wearing and tearing supercharging ball valve, it is characterized in that: valve rod (3) top is provided with jump ring (33), bottom is provided with boss (34), outer end is connected with pressure gauge (5), step position (43a) is established in charged piston (43), upper jump ring (33) is positioned at piston rod (44) upper end, and boss (34) is arranged in step position (43a).
7. the nothing wearing and tearing supercharging ball valve according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that: the outside of flexible sphere piston (22) is sphere (22a), axle (22b) is established in inner side, side wall surface is provided with piston ring (22c), piston cavity (23) is provided with the positioning seat (23a) of apotting spindle (22b), is provided with the butterfly spring (24) of at least one pair of between positioning seat (23a) and apotting spindle (22b).
8. the nothing wearing and tearing supercharging ball valve according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that: valve body (1) comprises bottom flange (11,12), booster body (4) and valve rod (3) are arranged on bonnet (11).
9. according to claim 3 without wearing and tearing supercharging ball valve, it is characterized in that: rotary spool (2) comprises upper and lower rotatingshaft (25,26), the inner of valve rod (3) connects the upper rotatingshaft (25) of rotary spool (2), and Pressure channel (27) connects booster cavity (41a) by upper rotatingshaft (25).
10. according to claim 7 without wearing and tearing supercharging ball valve, it is characterized in that: the internal orifice of runner (11) is provided with the seal ring (28) suitable with sphere (22a).
CN201520421946.5U 2015-06-17 2015-06-17 There is not wearing and tearing pressure boost ball valve Withdrawn - After Issue CN204878838U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913080A (en) * 2015-04-20 2015-09-16 广州市昊封流体工程技术有限公司 Non-wear boosting ball valve
CN108361405A (en) * 2018-02-24 2018-08-03 淄博沃泰斯石化设备有限公司 A kind of combination sealing ball valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913080A (en) * 2015-04-20 2015-09-16 广州市昊封流体工程技术有限公司 Non-wear boosting ball valve
CN104913080B (en) * 2015-04-20 2017-10-13 广州市昊封流体工程技术有限公司 Ball valve is pressurized without abrasion
CN108361405A (en) * 2018-02-24 2018-08-03 淄博沃泰斯石化设备有限公司 A kind of combination sealing ball valve
CN108361405B (en) * 2018-02-24 2019-08-13 淄博沃泰斯石化设备有限公司 A kind of combination sealing ball valve

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