CN104329480B - A kind of electrical ball valve - Google Patents
A kind of electrical ball valve Download PDFInfo
- Publication number
- CN104329480B CN104329480B CN201410497472.2A CN201410497472A CN104329480B CN 104329480 B CN104329480 B CN 104329480B CN 201410497472 A CN201410497472 A CN 201410497472A CN 104329480 B CN104329480 B CN 104329480B
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- gudgeon
- flow
- ball type
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
- F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
- F16K11/0876—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle one connecting conduit having the same axis as the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0657—Particular coverings or materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Multiple-Way Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a kind of electrical ball valve, comprise valve pocket, gudgeon ball type valve core, valve seat and valve rod, valve pocket comprises valve body and sleeve, gudgeon ball type valve core is provided with influent stream passage and goes out circulation road, motor is installed on sleeve, on valve body, be provided with a flow-in hole and two flow-out holes, in valve body, be provided with influent stream connecting path and go out to flow connecting path, thereby on each valve seat all against there being the flexible compensation part that can produce elastic deformation and apply elastic compression valve seat, on each flexible compensation part all against there being a plug screw, valve seat is provided with the first interstitial hole, flexible compensation part is provided with the second interstitial hole. the present invention is by installing flexible compensation part, gudgeon ball type valve core and valve seat are compensated, compensation rate has the adaptivity changing with temperature, pressure, there is good compensation adaptivity, can meet the different working condition requirements of different depth geological stratification, ensure the long-term safety positiver sealing of ball valve under different operating modes.
Description
Technical field
The invention belongs to ball valve field, more specifically, relate to a kind of electrical ball valve.
Background technology
In the occasion such as such as nuclear power plant, oil extraction, natural gas extraction, need to be to high-temperature, high pressure fluidControl. The water drive fracturing technique often adopting in oil extraction, utilizes ball sealer to different layers positionThe water drive multistage fracturing technology of carrying out staged fracturing, ball sealer from top to bottom diameter foundry goods reduces, correspondingThe latus rectum of pipeline also reduces. As ball valve is applied wherein, adopt valve control multistage fracturing technology, thanTraditional fracturing technique, simple to operate, only need provide corresponding control signal, control the rotating of motor,Can realize the commutation of head pieceThe open and close function of completion system pressure break mouth,Simplify the structure of whole system, can keep pressure break pipeline latus rectums at different levels consistent, undergauge processing that it goes without doing,Not only reduce cost of winning, also improved operating efficiency and the output of system.
In these fields, the valve of required use often all will meet following characteristics:
1) operating pressure is high, more than its maximum pressure can reach 30MPa, even arrives 90MPa;
2) operating temperature is high, and its maximum temperature can reach more than 150 DEG C;
3) installing space is little, Structure of need compactness, easy for installation;
4) safe and reliable, need zero leakage, can not cause misoperation because of leakage.
Ball valve carrys out interflow, shunting and the stream of flexible control medium by rotary spherical gudgeon ball type valve coreTo switching. Due to the good sealing property of ball valve self (ball face sealing form can realize sealing completely),Advantages of simple structure and simple, ball valve is very extensive in each industrial circle application. Current high temperature both domestic and external is highIn pressure valve, the series ball valve of the big Lip river of generation gram (Swagelok) is representative, as 83 series and H83High temperature high pressure valve and the HOKE76 series etc. of series. But these ball valves are applied in above-mentioned occasion and all existFollowing problem:
(1) carry out temperature, pressure and wear-compensating owing to adopting multiple dish springs to be superimposed and waiting, oftenThe volume of individual dish spring is larger, causes the volume of installation excessive;
(2) adopt square structure, influent stream mouth and go out head piece and arrange not at same end face, is unfavorable for pipelineThat installs is integrated, need to take larger installing space, with circle conventional in the chemical engineering industry such as rock glacierPipeline installation environment is difficult to good compatibility;
(3) power being produced by the decrement of multiple dish springs compensates, and close according under condition of high voltageEnvelope requires to select decrement, must cause in the time of low pressure balancing force excessive, has increased frictional force, needsLarger driving power, has also accelerated the wearing and tearing of ball valve simultaneously.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of electrical ball valve,Adopt flexible compensation part to carry out the compensation of temperature, pressure and wearing and tearing, sealing property is reliable, and can protectThe reliability of card commutation, its volume is little, and entirety is column construction, can be installed on easily various industryAmong pipe-line system.
For achieving the above object, according to one aspect of the present invention, provide a kind of electrical ball valve, bagDraw together valve pocket and be arranged on gudgeon ball type valve core in valve pocket, be resisted against valve seat on gudgeon ball type valve core withAnd the valve rod that can drive gudgeon ball type valve core to rotate, the quantity of valve seat is two, two valve seat symmetries pointCloth is in the both sides of gudgeon ball type valve core, and valve pocket entirety is cylindricality, and valve pocket comprises valve body and is fixedly mounted onSleeve on valve body, gudgeon ball type valve core is provided with influent stream passage and goes out circulation road, and sleeve is away from valve bodyOne end the motor can actuate valve stem rotating is installed, on the end face of valve body away from sleeve, be provided with oneFlow-in hole and two flow-out holes, the axis of flow-in hole and the axis of valve body are collinear, two flow-out holes aboutFlow-in hole Central Symmetry is distributed in the both sides of flow-in hole, is provided with for being communicated with flow-in hole and entering in valve bodyThe influent stream connecting path of circulation road and for be communicated with flow-out hole with go out circulation road go out to flow connecting path, everyThereby on individual valve seat all against there being the flexible compensation part that can produce elastic deformation and apply elastic compression valve seat,On each flexible compensation part, all against there being a plug screw, plug screw is arranged on valve body, valve seat, flexible compensationPart and plug screw are along the radially setting of valve body, and valve seat is provided with for being communicated with the stream that goes out on gudgeon ball type valve coreThe first interstitial hole of passage, flexible compensation part is provided with for being communicated with of the first interstitial hole and flow-out holeTwo interstitial holes.
Preferably, described valve rod comprises large end and small end, and the large end of valve rod is connected in the rotating shaft of motor,The small end of valve rod is resisted against on gudgeon ball type valve core, is processed with radian and is the arc of 90 ° on the large end of valve rodShape boss, the inwall of valve body be processed with valve rod on the corresponding radian of arc boss be the arc of 270 °Groove, arc boss rotates in arc groove, thereby by the rotational travel of valve rod be controlled at 180 ° withIn.
Preferably, described gudgeon ball type valve core is provided with the first square opening near one end of valve rod, described inValve rod is provided with the first square opening corresponding first square near one end of gudgeon ball type valve coreBoss, thereby the first square boss stretches into the first square opening, the interior valve rod that makes drives gudgeon ball type valveCore rotates.
Preferably, described valve rod is provided with the second square opening near one end of motor, the turning of described motorOn axle, be provided with and corresponding the second square boss of the second square opening, the second square boss stretches into second partyIn shape hole, thereby driven by motor valve rod is rotated.
Preferably, in described sleeve, thrust ball bearing is installed, the rotating shaft of described motor is through thrust ballAfter bearing, be connected on valve rod, valve rod is resisted against near one end of motor on the side of thrust ball bearing,The second square boss is deposited between the inwall at the second square opening place near end face and the valve rod of one end of valve rodIn gap.
Preferably, on described flexible compensation part, be provided with elastically-deformable bend can occur, described curvedPars convoluta is connected on valve seat.
Preferably, on described valve seat, be socketed with the first sealing ring.
Preferably, on described plug screw, be socketed with the second sealing ring.
Preferably, on described valve rod, be socketed with the 3rd sealing ring.
In general, the above technical scheme of conceiving by the present invention compared with prior art, canObtain following beneficial effect:
1) the present invention, by flexible compensation part is installed, compensates gudgeon ball type valve core and valve seat, mendsRepaying measurer has the adaptivity changing with temperature, pressure, has good compensation adaptivity, can meetThe different working condition requirements of different depth geological stratification, have ensured that the long-term safety of ball valve under different operating modes canBy sealing;
2) flow-in hole of this electrical ball valve and flow-out hole are arranged in the same end face of same valve body, overall volumeLittle, compact conformation, with the narrow and small installing space compatibility of circulating line;
3) in sleeve, thrust ball bearing is housed, to ensure valve rod flexibility and reliability motion under high pressure, fallsLow driving torque, has reduced the power attenuation of ball valve, more energy-conservation.
Brief description of the drawings
Fig. 1 is cutaway view of the present invention;
Fig. 2 is the enlarged drawing at A place in Fig. 1.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawingAnd embodiment, the present invention is further elaborated. Should be appreciated that described herein concreteEmbodiment only, in order to explain the present invention, is not intended to limit the present invention. In addition described,Involved technical characterictic in each embodiment of the present invention just can as long as do not form to conflict each otherMutually to combine.
As shown in Fig. 1～Fig. 2, a kind of electrical ball valve, comprises valve pocket 1 and is arranged on the ear in valve pocket 1Axle ball type valve core 7, be resisted against the valve seat 2 on gudgeon ball type valve core 7 and can drive gudgeon ball type valve coreThe valve rod 8 of 7 rotations, the quantity of valve seat 2 is two, two valve seats 2 are symmetrically distributed in gudgeon ball type valveThe both sides of core 7, valve pocket 1 entirety is cylindricality, and valve pocket 1 comprises valve body 10 and is fixedly mounted on valve body 10On sleeve 11, gudgeon ball type valve core 7 is provided with influent stream passage 13 and goes out circulation road 14, influent stream is logicalRoad 13 and go out the runner that circulation road 14 forms a T shape. Sleeve 11 is installed away from one end of valve body 10The motor 15 that has energy actuate valve stem 8 to rotate, motor 15 can be selected stepper motor, reducing motor or watchTake motor. On the end face of valve body 10 away from sleeve 11, be provided with a flow-in hole 16 and two flow-out holes17, flow-in hole 16 and flow-out hole 17 are arranged in the same end face of same valve body, and overall volume is little, structureCompactness, with the narrow and small installing space compatibility of circulating line; Valve body 10 is at flow-in hole 16 and flow-out hole 17The inwall at place is provided with screw thread, so that connect external pipe. Flow-in hole 16 can enter high-pressure fluid.The axis of the axis of flow-in hole 16 and valve body 10 is collinear, stressed with balance gudgeon ball type valve core 7.Two flow-out holes 17 are distributed in the both sides of flow-in hole 16, valve body 10 about flow-in hole 16 Central SymmetriesInside be provided with for being communicated with flow-in hole 16 with the influent stream connecting path 18 of influent stream passage 13 with for being communicated withFlow-out hole 17 with go out circulation road 14 go out to flow connecting path 19, on each valve seat 2, all can produce against havingThereby raw elastic deformation applies the flexible compensation part 5 of elastic compression valve seat 2, on each flexible compensation part 5All, against there being a plug screw 4, plug screw 4 is arranged on valve body 10.
Preferably, with reference to Fig. 2, on described flexible compensation part 5, be provided with elastically-deformable bending can occurPortion 27, when described bend 27 is connected on valve seat 2, can there is elastic deformation in it, for compensationThe deformation of valve seat 2 and gudgeon ball type valve core 7. The shape of flexible compensation part 5 can have multiple variation,Be not limited to the shape shown in figure, such as it can be I-shaped, as long as it has elasticity can occurThe bend 27 of deformation. Owing to having adopted the flexible compensation part 5 of the T shape structure in figure, and notBe common dish spring or spring, therefore the volume of this ball valve can be made very littlely, outside valve pocket 1Footpath can be worked into 16mm left and right, and therefore this ball valve goes in the smaller industrial pipeline of internal diameter.
Described valve seat 2, flexible compensation part 5 and plug screw 4 are along the radially setting of valve body 10, on valve seat 2Be provided with for being communicated with the first interstitial hole 20 that goes out circulation road 14 on gudgeon ball type valve core 7, flexible compensationPart 5 is provided with the second interstitial hole 21 for being communicated with the first interstitial hole 20 and flow-out hole 17. Gudgeon ballWhen formula spool 7 rotates under the drive of motor 15, its oil discharge passage 14 can be respectively and two valve seats 2On the first interstitial hole 20 be communicated with, thereby realize the commutation of ball valve. On valve body 10, adopt plug screw 4Block, easy for installation, and can regulating valve seat 2 and the initial pretightning force of gudgeon ball type valve core 7, withEnsure seal request.
Gudgeon ball type valve core 7 adopts corrosion resisting alloy to make, and it has better anti-high pressure ability; ValveSeat 2 adopts high-strength engineering plastic, makes like this sealing position of gudgeon ball type valve core 7 and valve seat 2Realize soft seal and coordinate, seal pressure is little, leaks very little, safe and reliable; Valve seat 2 with earThe end face that axle ball type valve core 7 coordinates has been processed spherical groove, reduces thereby can reduce sealing surface on the one handSeal required seal preload, the pressure of the pressure medium of spherical groove the inside can be further on the other handIncrease the reliability that seal pressure improves sealing; What provide at plug screw 4 and flexible compensation part 5 is initial pre-Under the common effect of the pressure of tight power and fluid, gudgeon ball type valve core 7 fits tightly with valve seat 2.
Flexible compensation part 5 is than traditional spring, dish spring etc., and small volume, is easy to manufacture knotStructure compact, rigidity is large, is adapted at using in the smaller situation of valve body 10 volumes. Flexible compensationThe Main Function of part 5 has the following aspects: the one, and in the time that ball valve experiences larger thermograde, rightTwo-way thermal compensation is carried out in the thermal expansion that valve seat 2 and gudgeon ball type valve core 7 produce, and prevents that heat expansion is stuckAnd cannot rotate flexibly; The 2nd, valve seat 2 loaded to certain initial pretightning force, expand ball valveWorking pressure range, makes ball valve in low pressure and high-pressure system, all have leakproof integrality; The 3rd, forCompensation gudgeon ball type valve core 7 and valve seat 2 cause sealing owing to doing for a long time the wearing and tearing that frictional rotation causesFinally cause seal failure to be leaked than drops.
On valve body 10,2 flow-out holes 17 (being respectively A mouth and B mouth) are all arranged on to flow-in holeOn the 16 same end faces in (P mouth) place, can facilitate the installation of pipeline, save the installation sky of whole ball valveBetween, make it compacter. This ball valve can meet the high pressure-temperature occasion limited to installing space, workMedium can be high flame retardant flow of pressurized. The electronic control that motor 15 drives due to what adopt, can be completeBecome the automation control of stream, be applicable to, drive the neck such as extraction system, power plant under rock glacier, the natural gas wellTerritory.
Further, on valve seat 2 cylindricals, be processed with groove for the first sealing ring 3, the first sealing rings are installed3 coordinate formation static seal with valve body 10. Flexible compensation part 5 entirety are T-shaped, and bend 27 is arranged onOne end that cross-sectional area is larger, bend 27, near being attached on valve seat 2, is adjusted bend 27 and is acted onThe thickness of the size on valve seat 2 and bend 27 just can be adjusted its rigidity. ?On the cylindrical of plug screw 4, be processed with groove for the second sealing ring 6, the second sealing ring 6 and valve bodies are installed10 coordinate formation static seal. The end face of plug screw 4 has the deep gouge for laying flexible compensation part 5, GuSurely live flexible compensation part 5 and prevent its play vertically, unscrew or the plug screw 4 of tightening symmetrical two ends just canTo adjust the required initial pretightning force size of valve seat 2. The 3rd sealing ring 9 is installed on valve rod 8, withPrevent that fluid leakage from entering motor 15 the insides.
Preferably, described valve rod 8 comprises large end 22 and small end 23, and the large end 22 of valve rod 8 is connected toIn the rotating shaft of motor 15, the small end 23 of valve rod 8 is resisted against on gudgeon ball type valve core 7, valve rod 8On large end 22, be processed with radian and be the arc boss 24 of 90 °, the inwall of valve body 10 is processed with and valve rodThe corresponding radian of arc boss 24 on 8 is the arc groove of 270 °, and arc boss 24 is recessed at arcIn groove, rotate, thereby the rotational travel of valve rod 8 is controlled in 180 °. When selecting common decelerationWhen motor 15, valve body 10 can be spacing to arc boss 24 at the inwall at arc groove place, valve rod8 can only drive gudgeon ball type valve core 7 clockwise or be rotated counterclockwise 180 °. Gudgeon ball type valve core 7 arrivesWhile reaching an extreme position, it goes out circulation road 14 and is communicated with a flow-out hole 17 (A mouth) wherein, another when arrivingWhen one extreme position, it goes out circulation road 14 and is communicated with another flow-out hole 17 (B mouth), realizes ball with thisThe accurate commutation of valve.
The influent stream passage 13 of gudgeon ball type valve core 7 is through hole, makes the influent stream of gudgeon ball type valve core 7 logicalRoad 13 and go out circulation road 14 and form the runner of a T shape structure. Because influent stream passage 13 is through hole, canAn other side of introducing gudgeon ball type valve core 7 with the high-pressure medium that flow-in hole 16 is flowed into, makes whole earThe axially loaded balance of axle ball type valve core 7.
Gudgeon ball type valve core 7 is matched in clearance with valve body 10, and the inwall of valve body 10 can be to gudgeon ball formulaSpool 7 carries out radially spacing, but between the two, leaves again certain gap simultaneously, makes gudgeon ball formulaSpool 7 can radially do micro-movement, compensates the two shape with the fluctuation to pressure and tempThe overall structure becoming is semi-floating structure.
Further, described gudgeon ball type valve core 7 is provided with the first square opening near one end of valve rod 8,Described valve rod 8 is provided with and the first square opening corresponding near one end of gudgeon ball type valve core 7One square boss 25, thereby the first square boss 25 stretches into, the first square opening is interior is with valve rod 8Moving gudgeon ball type valve core 7 rotates. Described valve rod 8 is provided with second square near one end of motor 15Hole, is provided with in the rotating shaft of described motor 15 and corresponding the second square boss 26, the of the second square openingTwo square boss 26 stretch in the second square opening, thereby make motor 15 be with ovable valve stem 8 to rotate, like thisMake to connect more convenient. Preferably, in described sleeve 11, thrust ball bearing 12 is installed, described electricityThe rotating shaft of machine 15 is through being connected on valve rod 8 after thrust ball bearing 12, and valve rod 8 is near motor 15One end is resisted against on the side of thrust ball bearing 12. The second square boss 26 is near one end of valve rod 8End face and valve rod 8 between the inwall at the second square opening place, there is gap, the axial force of valve rod 8 is equalAct on thrust ball bearing 12, the rotating shaft of motor 15 is not subject to the responsive to axial force of valve rod 8, hasBe beneficial to the service life that extends motor 15. Due to thrust ball bearing 12 being installed, to ensure on ball valveRotating shaft on valve rod 8, gudgeon ball type valve core 7 and motor 15 flexibility and reliability motion under high pressure,Reduce frictional resistance and reduced driving torque.
When assembling, first gudgeon ball type valve core 7 is packed into the inner chamber of valve body 10, then install successively valve seat 2,Flexible compensation part 5 and plug screw 4, regulate the plug screw 4 on both sides to be carried in valve seat 2 and gudgeon ball type valve coreInitial pretightning force on 7, makes it reach seal pressure requirement; And then valve rod 8 is installed, first by thrustBall bearing 12 packs in sleeve 11, then sleeve 11 and valve body 10 is installed. Rotating shaft is insertedEnter in valve rod 8, motor 15 and sleeve 11 are coupled together with screw.
Electrical ball valve tool of the present invention has the following advantages:
1), adopt gudgeon ball type valve core 7, the heart has the through hole as influent stream passage 13 therein, makesThe influent stream passage 13 two ends end faces of gudgeon ball gudgeon ball type valve core 7 all have pressure medium, stress balance;
2), valve seat 2 adopts high-strength engineering plastic, makes the sealing of valve seat 2 and gudgeon ball type valve core 7Position is realized soft seal and is coordinated, and has deep gouge at its seal face, and the second sealing ring 6 is installed at deep gouge place,To reduce seal pressure and initial pretightning force, realize zero leakage sealing, safe and reliable;
3), this ball valve has good compensation adaptivity. Ball valve need to meet different depth geological stratificationDifferent working condition requirements, and for the requirement needs that adapt to different operating modes carry out trace compensation to ball valve,The present invention, by flexible compensation part 5 is installed, carries out temperature and pressure to gudgeon ball type valve core 7 and valve seat 2The compensation of two aspects, compensation rate has the adaptivity changing with temperature, pressure, has ensured that ball valve is notWith the long-term safety positiver sealing under operating mode;
4), thrust ball bearing 12 is housed in sleeve 11, with the moving component that ensures ball valve under high pressureFlexibility and reliability motion, reduced the driving torque of motor 15 rotating shafts, reduced the power attenuation of ball valve,More energy-conservation.
5), flow-in hole 16 and the flow-out hole 17 of this ball valve be arranged in same end face, overall volume is little,Compact conformation, with the narrow and small installing space compatibility of circulating line.
Those skilled in the art will readily understand, the foregoing is only preferred embodiment of the present invention,Not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, etc.With replacement and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. an electrical ball valve, comprise valve pocket (1) and be arranged on gudgeon ball type valve core (7) in valve pocket (1),Be resisted against the valve seat (2) on gudgeon ball type valve core (7) and can drive gudgeon ball type valve core (7)The valve rod (8) of rotation, the quantity of valve seat (2) is two, two valve seats (2) are symmetrically distributed inThe both sides of gudgeon ball type valve core (7), valve pocket (1) entirety is cylindricality, and valve pocket (1) comprises valve body(10) and be fixedly mounted on the sleeve (11) on valve body (10), on gudgeon ball type valve core (7)Be provided with influent stream passage (13) and go out circulation road (14), it is characterized in that: sleeve (11) is away from valveOne end of body (10) is provided with the motor (15) that energy actuate valve stem (8) is rotated, valve body (10)On end face away from sleeve (11), be provided with a flow-in hole (16) and two flow-out holes (17),The axis of the axis of flow-in hole (16) and valve body (10) is collinear, two flow-out holes (17) aboutFlow-in hole (16) Central Symmetry is distributed in the both sides of flow-in hole (16), in valve body (10), arrangesBe useful on and be communicated with the influent stream connecting path (18) of flow-in hole (16) and influent stream passage (13) and useIn be communicated with flow-out hole (17) with go out circulation road (14) go out to flow connecting path (19), each valve seat(2) thus on all can produce the flexibility that elastic deformation applies elastic compression valve seat (2) and mend against havingRepay part (5), on each flexible compensation part (5), all against there being a plug screw (4), plug screw (4) is pacifiedBe contained in valve body (10) upper, valve seat (2), flexible compensation part (5) and plug screw (4) are along valve body (10)Radially setting, valve seat (2) be provided with for be communicated with on gudgeon ball type valve core (7) go out circulationFirst interstitial hole (20) in road (14), flexible compensation part (5) is provided with for being communicated with firstBetween second interstitial hole (21) of hole (20) and flow-out hole (17).
2. a kind of electrical ball valve according to claim 1, is characterized in that: described valve rod (8) comprisesLarge end (22) and small end (23), the large end (22) of valve rod (8) is connected to motor (15)In rotating shaft, it is upper that the small end (23) of valve rod (8) is resisted against gudgeon ball type valve core (7), valve rod (8)Large end (22) on to be processed with radian be the arc boss (24) of 90 °, in valve body (10)Wall be processed with valve rod (8) on the corresponding radian of arc boss (24) be that the arc of 270 ° is recessedGroove, arc boss (24) rotates in arc groove, thereby by the rotational travel control of valve rod (8)In 180 °.
3. a kind of electrical ball valve according to claim 1, is characterized in that: described gudgeon ball type valve core(7) be provided with the first square opening near one end of valve rod (8), described valve rod (8) is near earOne end of axle ball type valve core (7) is provided with and corresponding the first square boss of the first square opening(25), the first square boss (25) thus stretch into and make valve rod (8) in the first square openingDrive gudgeon ball type valve core (7) to rotate.
4. a kind of electrical ball valve according to claim 3, is characterized in that: described valve rod (8) is closeOne end of motor (15) is provided with the second square opening, in the rotating shaft of described motor (15), is provided withWith corresponding the second square boss of the second square opening (26), the second square boss (26) stretches into secondIn square opening, thereby motor (15) band ovable valve stem (8) is rotated.
5. a kind of electrical ball valve according to claim 4, is characterized in that: in described sleeve (11)Thrust ball bearing (12) is installed, and the rotating shaft of described motor (15) is through thrust ball bearing (12)After to be connected to valve rod (8) upper, valve rod (8) is resisted against thrust ball near one end of motor (15)On the side of bearing (12), the second square boss (26) is near the end face of one end of valve rod (8)And there is gap in valve rod (8) between the inwall at the second square opening place.
6. a kind of electrical ball valve according to claim 1, is characterized in that: described flexible compensation part (5)On be provided with elastically-deformable bend (27) can occur, described bend (27) is connected to valve seat(2) on.
7. a kind of electrical ball valve according to claim 1, is characterized in that: the upper cover of described valve seat (2)Be connected to the first sealing ring (3).
8. a kind of electrical ball valve according to claim 7, is characterized in that: the upper cover of described plug screw (4)Be connected to the second sealing ring (6).
9. a kind of electrical ball valve according to claim 8, is characterized in that: the upper cover of described valve rod (8)Be connected to valve rod (8) the 3rd sealing ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410497472.2A CN104329480B (en) | 2014-09-24 | 2014-09-24 | A kind of electrical ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410497472.2A CN104329480B (en) | 2014-09-24 | 2014-09-24 | A kind of electrical ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104329480A CN104329480A (en) | 2015-02-04 |
| CN104329480B true CN104329480B (en) | 2016-05-25 |
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| CN201410497472.2A Expired - Fee Related CN104329480B (en) | 2014-09-24 | 2014-09-24 | A kind of electrical ball valve |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105351557A (en) * | 2015-12-18 | 2016-02-24 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | Miniature high-temperature and high-pressure electric rotary valve |
| CN105402442B (en) * | 2015-12-18 | 2019-04-26 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of high-temp and-pressure ball valve |
| CN115342200A (en) * | 2021-05-13 | 2022-11-15 | 浙江三花汽车零部件有限公司 | Electric valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2703928Y (en) * | 2004-04-30 | 2005-06-08 | 台州光辉自控科技有限公司 | Electric ball valve |
| DE202006002375U1 (en) * | 2006-02-15 | 2006-04-20 | Festo Ag & Co. | Ball valve has groove with sloping base on outer surface of ball which connects one of fluid channels with vent at right angles to it when valve is closed |
| CN200971981Y (en) * | 2006-10-20 | 2007-11-07 | 杨杰 | Water tap without handle |
| CN201599453U (en) * | 2009-11-18 | 2010-10-06 | 河南航天压力元件有限公司 | Gas ball valve |
| WO2010127201A1 (en) * | 2009-05-01 | 2010-11-04 | Swagelok Company | Seal with seal support shoulder |
| CN202381735U (en) * | 2011-12-24 | 2012-08-15 | 浙江方顿仪表阀门有限公司 | On-line automatic-compensation sealing high-pressure ball valve |
| CN203413158U (en) * | 2013-06-20 | 2014-01-29 | 宁波福尼洛克流体科技有限公司 | Trunnion ball valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010032951A1 (en) * | 1999-10-13 | 2001-10-25 | Robert C. Stewart | Ball valve stem seal arrangement |
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2014
- 2014-09-24 CN CN201410497472.2A patent/CN104329480B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2703928Y (en) * | 2004-04-30 | 2005-06-08 | 台州光辉自控科技有限公司 | Electric ball valve |
| DE202006002375U1 (en) * | 2006-02-15 | 2006-04-20 | Festo Ag & Co. | Ball valve has groove with sloping base on outer surface of ball which connects one of fluid channels with vent at right angles to it when valve is closed |
| CN200971981Y (en) * | 2006-10-20 | 2007-11-07 | 杨杰 | Water tap without handle |
| WO2010127201A1 (en) * | 2009-05-01 | 2010-11-04 | Swagelok Company | Seal with seal support shoulder |
| CN201599453U (en) * | 2009-11-18 | 2010-10-06 | 河南航天压力元件有限公司 | Gas ball valve |
| CN202381735U (en) * | 2011-12-24 | 2012-08-15 | 浙江方顿仪表阀门有限公司 | On-line automatic-compensation sealing high-pressure ball valve |
| CN203413158U (en) * | 2013-06-20 | 2014-01-29 | 宁波福尼洛克流体科技有限公司 | Trunnion ball valve |
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| CN104329480A (en) | 2015-02-04 |
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