CN104329480A - Electric ball valve - Google Patents
Electric ball valve Download PDFInfo
- Publication number
- CN104329480A CN104329480A CN201410497472.2A CN201410497472A CN104329480A CN 104329480 A CN104329480 A CN 104329480A CN 201410497472 A CN201410497472 A CN 201410497472A CN 104329480 A CN104329480 A CN 104329480A
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- valve
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- gudgeon
- valve rod
- flow
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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 an electric ball valve, which comprises a valve housing, a trunnion ball type spool, valve seats and a valve rod, the valve housing comprises a valve body and a sleeve, the trunnion ball type spool is provided with an inflow passage and an outflow passage, a motor is mounted on the sleeve, the valve body is provided with an inflow hole and two outflow holes, the an inflow connecting passage and an outflow connecting passage are arranged in the valve body, a flexible compensating part which can elastically deform to apply elastic force to tightly press the valve seat abuts against each valve seat, a screw plug abuts against each flexible compensating part, the valve seats are provided with first central holes, and the flexible compensating parts are provided with second central holes. Since the flexible compensating parts are mounted to compensate the trunnion ball type spool and the valve seats and compensation is self-adaptive as temperature and pressure change, the electric ball valve has good self-adaptability in compensation, consequently, the electric ball valve can meet the different working condition requirements of geological strata at different depths, and the long-term safe and reliable sealing of the ball valve under different working conditions is ensured.
Description
Technical field
The invention belongs to ball valve field, more specifically, relate to a kind of electric ball valve.
Background technique
In occasions such as such as nuclear power plant, oil extraction, natural gas extractions, need to control high-temperature, high pressure fluid.The water drive fracturing technique often adopted in oil extraction, utilizes ball sealer to carry out the water drive multistage fracturing technology of staged fracturing to different layers position, and ball sealer from top to bottom diameter foundry goods reduces, and the latus rectum of respective line also reduces.As by ball valve application wherein, adopt valve control multistage fracturing technology, compared to traditional fracturing technique, simple to operate, only need provide corresponding control signal, control the clockwise and anticlockwise of motor, the commutation of head piece can be realized
the open and close function of completion system pressure break mouth, simplifies the structure of whole system, and pressure break pipeline latus rectum at different levels can be kept consistent, and undergauge process that it goes without doing, not only reduces cost of winning, also improves working efficiency and the output of system.
Valve in these areas often all will meet following characteristics:
1) working pressure is high, and its maximum pressure can reach more than 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, and Structure of need is compact, easy for installation;
4) safe and reliable, need zero leakage, misoperation can not be caused because of leakage.
The switching that ball valve is come the interflow of flexible control media, shunting by rotary spherical gudgeon ball spool and flowed to.Due to the sealability (ball face sealing form can realize sealing completely) that ball valve self is good, advantages of simple structure and simple, ball valve is very extensive in each industrial field application.In current high temperature high pressure valve both domestic and external, the series ball valve of the big Lip river of generation gram (Swagelok) is representative, as 83 series and the high temperature high pressure valve of H83 series and HOKE76 serial etc.But these ball valves are applied in above-mentioned occasion all exists following problem:
(1) carry out temperature, pressure and wear compensation owing to adopting multiple disc spring to be superimposed etc., the volume of each disc spring is comparatively large, causes the volume installed excessive;
(2) adopt square structure, influent stream mouth and go out head piece and arrange not at same end face, be unfavorable for that pipeline is installed integrated, need to take larger installing space, be difficult to good compatibility with the circular pipe installation environment commonly used in the chemical engineering industry such as rock glacier;
(3) power produced by the decrement of multiple disc spring compensates, and select decrement according to the seal request under condition of high voltage, the equilibrant force when low pressure must be caused excessive, increase frictional force, need larger driving power, also accelerate 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 electric ball valve, flexible compensation part is adopted to carry out the compensation of temperature, pressure and wearing and tearing, sealability is reliable, and the reliability of commutation can be ensured, its volume is little, overall in column construction, can be installed on easily among various industrial piping system.
For achieving the above object, according to one aspect of the present invention, provide a kind of electric ball valve, comprise valve pocket and be arranged on the gudgeon ball spool in valve pocket, be resisted against the valve seat on gudgeon ball spool and the valve rod of gudgeon ball Spool rotating can be driven, the quantity of valve seat is two, two valve seats are symmetrically distributed in the both sides of gudgeon ball spool, valve pocket entirety is in cylindricality, valve pocket comprises valve body and is fixedly mounted on the sleeve on valve body, gudgeon ball spool is provided with influent stream passage and goes out circulation road, sleeve is provided with away from one end of valve body can the motor that rotates of actuate valve stem, valve body is away from the end face of sleeve being provided with a flow-in hole and two flow-out holes, the axis of flow-in hole and the axis of valve body collinear, two flow-out holes are distributed in the both sides of flow-in hole about flow-in hole Central Symmetry, be provided with in valve body influent stream connecting path for being communicated with flow-in hole and influent stream passage with for be communicated with flow-out hole with go out circulation road go out to flow connecting path, each valve seat all can produce elastic strain thus the flexible compensation part applying elastic compression valve seat against having, all against there being a plug screw on each flexible compensation part, plug screw is arranged on valve body, valve seat, flexible compensation part and plug screw are arranged along the radial direction of valve body, valve seat is provided with the first intermediate hole going out circulation road for being communicated with on gudgeon ball spool, flexible compensation part is provided with the second intermediate hole for being communicated with the first intermediate hole and flow-out hole.
Preferably, described valve rod comprises large end and small end, 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 spool, the large end of valve rod is processed with the arc boss that radian is 90 °, the inwall of valve body is processed with the arc groove that the radian corresponding to the arc boss on valve rod is 270 °, and arc boss rotates in arc groove, thus the rotational travel of valve rod is controlled within 180 °.
Preferably, described gudgeon ball spool is provided with the first square opening near one end of valve rod, described valve rod is provided with first square boss corresponding to the first square opening near one end of gudgeon ball spool, and the first square boss to stretch in the first square opening thus makes valve rod drive gudgeon ball valve core rotation.
Preferably, described valve rod is provided with the second square opening near one end of motor, and the rotating shaft of described motor is provided with second square boss corresponding to the second square opening, the second square boss stretches in the second square opening, thus driven by motor valve rod is rotated.
Preferably, in described sleeve, thrust ball bearing is installed, the rotating shaft of described motor is connected on valve rod through after thrust ball bearing, valve rod is resisted against on the side of thrust ball bearing near one end of motor, and the end face of the second square boss near one end of valve rod and valve rod exist gap between the inwall at the second square opening place.
Preferably, described flexible compensation part is provided with and elastically-deformable curved part can occurs, described curved part is connected on valve seat.
Preferably, described valve seat is socketed with the first seal ring.
Preferably, described plug screw is socketed with the second seal ring.
Preferably, described valve rod is socketed with the 3rd seal ring.
In general, the above technological scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
1) the present invention is by installing flexible compensation part, gudgeon ball spool and valve seat are compensated, compensation rate has the adaptivity with temperature, pressure change, there is good compensation adaptivity, the different working condition requirements of different depth geological stratification can be met, ensure that the long-term safety reliable sealing of ball valve under different operating mode;
2) flow-in hole of this electric ball valve and flow-out hole are arranged in the same end face of same valve body, and overall volume is little, compact structure, and the installing space narrow and small with circulating line is compatible;
3) sleeve is built with thrust ball bearing, to ensure valve rod flexibility and reliability motion under high pressure, reduces driving torque, reduces the power loss of ball valve, more energy-conservation.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention;
Fig. 2 is the enlarged view at A place in Fig. 1.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each mode of execution of the present invention involved technical characteristics do not form conflict each other and just can mutually combine.
As shown in Fig. 1 ~ Fig. 2, a kind of electric ball valve, the valve rod 8 comprising valve pocket 1 and be arranged on gudgeon ball spool 7 in valve pocket 1, be resisted against the valve seat 2 on gudgeon ball spool 7 and gudgeon ball spool 7 can be driven to rotate, the quantity of valve seat 2 is two, two valve seats 2 are symmetrically distributed in the both sides of gudgeon ball spool 7, valve pocket 1 entirety is in cylindricality, valve pocket 1 comprises valve body 10 and is fixedly mounted on the sleeve 11 on valve body 10, gudgeon ball spool 7 is provided with influent stream passage 13 and goes out circulation road 14, influent stream passage 13 and go out the runner that circulation road 14 forms a T-shaped.Sleeve 11 is provided with away from one end of valve body 10 can the motor 15 that rotates of actuate valve stem 8, and motor 15 can select stepper motor, reducing motor or actuating motor.The end face of valve body 10 away from sleeve 11 is provided with a flow-in hole 16 and two flow-out holes 17, 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, compact structure, and the installing space narrow and small with circulating line is compatible; Valve body 10 is provided with screw thread at the inwall at flow-in hole 16 and flow-out hole 17 place, so that connect external pipe.Flow-in hole 16 can enter high-pressure liquid.The axis of flow-in hole 16 and the axis of valve body 10 collinear, stressed with balance trunnion ball spool 7.Two flow-out holes 17 are distributed in the both sides of flow-in hole 16 about flow-in hole 16 Central Symmetry, be provided with in valve body 10 influent stream connecting path 18 for being communicated with flow-in hole 16 and influent stream passage 13 with for be communicated with flow-out hole 17 with go out circulation road 14 go out to flow connecting path 19, each valve seat 2 all can produce elastic strain thus the flexible compensation part 5 applying elastic compression valve seat 2 against having, all against there being a plug screw 4 on each flexible compensation part 5, plug screw 4 is arranged on valve body 10.
Preferably, with reference to Fig. 2, described flexible compensation part 5 is provided with elastically-deformable curved part 27 can occur, when described curved part 27 is connected on valve seat 2, can there is elastic strain in it, for compensating the deformation of valve seat 2 and gudgeon ball spool 7.The shape of flexible compensation part 5 can have multiple change, is not limited to the shape shown in figure, such as it can be I-shaped, as long as it has, and elastically-deformable curved part 27 can occur.Owing to have employed the flexible compensation part 5 of the T-shaped structure in figure, instead of common disc spring or spring, therefore the volume of this ball valve can make very little, and the external diameter of valve pocket 1 can be worked into about 16mm, 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 arranged along the radial direction of valve body 10, valve seat 2 is provided with the first intermediate hole 20 going out circulation road 14 for being communicated with on gudgeon ball spool 7, and flexible compensation part 5 is provided with the second intermediate hole 21 for being communicated with the first intermediate hole 20 and flow-out hole 17.When gudgeon ball spool 7 rotates under the drive of motor 15, its oil discharge passage 14 can be communicated with the first intermediate hole 20 on two valve seats 2 respectively, thus realizes the commutation of ball valve.Valve body 10 adopt plug screw 4 block, easy for installation, and can the initial pretightening force of regulating valve seat 2 and gudgeon ball spool 7, to ensure seal request.
Gudgeon ball spool 7 adopts corrosion resisting alloy to make, and it has better anti-high pressure ability; Valve seat 2 adopts high-strength engineering plastic, and make gudgeon ball spool 7 realize soft seal with the sealing position of valve seat 2 like this and coordinate, seal pressure is little, leaks very little, safe and reliable; Spherical groove is machined at the end face that valve seat 2 is coordinating with gudgeon ball spool 7, can reduce sealing surface on the one hand thus reduce the seal preload needed for sealing, the pressure of the pressure medium on the other hand inside spherical groove can increase the reliability that seal pressure improves sealing further; Under the common effect of the initial pretightening force provided at plug screw 4 and flexible compensation part 5 and the pressure of fluid, gudgeon ball spool 7 and valve seat 2 fit tightly.
Flexible compensation part 5 is compared to traditional spring, disc spring etc., and small volume, be easy to manufacture, compact structure is compact, and rigidity is large, is adapted at using when valve body 10 volume is smaller.The Main Function of flexible compensation part 5 has the following aspects: one is when ball valve experiences larger temperature gradient, carries out two-way thermal compensation, prevent heat expansion stuck and cannot rotate flexibly the thermal expansion that valve seat 2 and gudgeon ball spool 7 produce; Two is load certain initial pretightening force to valve seat 2, expands the range of working pressure of ball valve, makes ball valve all have leakproof integrity in low pressure and high-pressure system; Three is that the wearing and tearing caused owing to doing frictional rotation for a long time for compensating gudgeon ball spool 7 and valve seat 2 cause seal pressure decline and finally cause seal failure to be leaked.
On valve body 10,2 flow-out holes 17 (being respectively A mouth and B mouth) are all arranged on the same end face in flow-in hole 16 (P mouth) place, the installation of pipeline can be facilitated, save the installing space of whole ball valve, make it compacter.This ball valve can meet the high pressure-temperature occasion limited to installing space, and working medium can be high flame retardant flow of pressurized.Is the Electronic control that motor 15 drives due to what adopt, the Automated condtrol of stream can be completed, be applicable to, drive the field such as extraction system, power station under rock glacier, gas well.
Further, valve seat 2 cylindrical is processed with groove to coordinate with valve body 10 form static seal for installing the first seal ring 3, first seal ring 3.Flexible compensation part 5 is overall T-shaped, and curved part 27 is arranged on the larger one end of cross-section area, and curved part 27 is near being attached on valve seat 2, and the thickness that adjustment curved part 27 acts on size on valve seat 2 and curved part 27 just can adjust its rigidity.The cylindrical of plug screw 4 is processed with groove to coordinate with valve body 10 form static seal for installing the second seal ring 6, second seal ring 6.The end face of plug screw 4 has the deep gouge for laying flexible compensation part 5, fixes flexible compensation part 5 and prevents its play vertically, unscrews or the plug screw 4 of tightening symmetrical two ends just can adjust initial pretightening force size needed for valve seat 2.Valve rod 8 is provided with the 3rd seal ring 9, in case fluid is leaked inside motor 15.
Preferably, described valve rod 8 comprises large end 22 and small end 23, the large end 22 of valve rod 8 is connected in the rotating shaft of motor 15, the small end 23 of valve rod 8 is resisted against on gudgeon ball spool 7, the large end 22 of valve rod 8 is processed with the arc boss 24 that radian is 90 °, the inwall of valve body 10 is processed with the arc groove that the radian corresponding to the arc boss 24 on valve rod 8 is 270 °, and arc boss 24 rotates in arc groove, thus the rotational travel of valve rod 8 is controlled within 180 °.When selecting common reducing motor 15, then the inwall of valve body 10 at arc groove place can be spacing to arc boss 24, and valve rod 8 can only drive gudgeon ball spool 7 clockwise or be rotated counterclockwise 180 °.When gudgeon ball spool 7 arrives a limit position, it goes out circulation road 14 and is communicated with a wherein flow-out hole 17 (A mouth), when arriving another limit position, it goes out circulation road 14 and is communicated with another flow-out hole 17 (B mouth), realizes the accurate commutation of ball valve with this.
The influent stream passage 13 of gudgeon ball spool 7 is through hole, makes the influent stream passage 13 of gudgeon ball spool 7 and goes out the runner that circulation road 14 forms a T-shaped structure.Because influent stream passage 13 is through hole, the high-pressure medium that flow-in hole 16 can be flowed into introduces the other side of gudgeon ball spool 7, and the axially loaded of whole gudgeon ball spool 7 is balanced.
Gudgeon ball spool 7 and valve body 10 are Spielpassung, the inwall of valve body 10 can carry out the spacing of radial direction to gudgeon ball spool 7, but leave again certain gap therebetween simultaneously, make gudgeon ball spool 7 radially can do the movement of trace, to compensate the fluctuation of pressure and temp, the two overall structure formed is semi-floating structure.
Further, described gudgeon ball spool 7 is provided with the first square opening near one end of valve rod 8, first square boss 25, first square boss 25 corresponding to the first square opening that described valve rod 8 be provided with near one end of gudgeon ball spool 7 to stretch in the first square opening thus makes valve rod 8 drive gudgeon ball spool 7 to rotate.Described valve rod 8 is provided with the second square opening near one end of motor 15, the rotating shaft of described motor 15 is provided with second square boss 26 corresponding to the second square opening, second square boss 26 stretches in the second square opening, thus makes motor 15 be with ovable valve stem 8 to rotate, and makes connection more convenient like this.Preferably, be provided with thrust ball bearing 12 in described sleeve 11, the rotating shaft of described motor 15 is connected on valve rod 8 through after thrust ball bearing 12, and valve rod 8 is resisted against on the side of thrust ball bearing 12 near one end of motor 15.Gap is there is in the end face of the second square boss 26 near one end of valve rod 8 and valve rod 8 between the inwall at the second square opening place, the axial force of valve rod 8 all acts on thrust ball bearing 12, the rotating shaft of motor 15 is not subject to the responsive to axial force of valve rod 8, is conducive to the working life extending motor 15.Owing to having installed thrust ball bearing 12, to ensure the rotating shaft flexibility and reliability motion under high pressure on valve rod 8, gudgeon ball spool 7 and the motor 15 on ball valve, reduce surface friction drag and reduced driving torque.
During assembling, first gudgeon ball spool 7 is loaded the inner chamber of valve body 10, then install valve seat 2, flexible compensation part 5 and plug screw 4 successively, the plug screw 4 on adjustment both sides is carried in the initial pretightening force on valve seat 2 and gudgeon ball spool 7, makes it reach seal pressure requirement; And then valve rod 8 is installed, first thrust ball bearing 12 is loaded in sleeve 11, then sleeve 11 and valve body 10 are installed.Rotating shaft is inserted in valve rod 8, with screw, motor 15 and sleeve 11 are coupled together.
Electric ball valve tool of the present invention has the following advantages:
1), adopt gudgeon ball spool 7, the heart has the through hole as influent stream passage 13 wherein, makes the influent stream passage 13 two ends end face of gudgeon ball gudgeon ball spool 7 all have pressure medium, stress balance;
2), valve seat 2 adopts high-strength engineering plastic, makes valve seat 2 realize soft seal with the sealing position of gudgeon ball spool 7 and coordinates, and have deep gouge at its seal face, the second seal ring 6 is installed at deep gouge place, to reduce seal pressure and initial pretightening force, realize zero leakage sealing, safe and reliable;
3), this ball valve has good compensation adaptivity.The different working condition requirements of ball valve demand fulfillment different depth geological stratification, and compensate in order to the requirement needs adapting to different operating mode carry out trace to ball valve, the present invention is by installing flexible compensation part 5, gudgeon ball spool 7 and valve seat 2 are carried out to the compensation of temperature and pressure two aspect, compensation rate has the adaptivity with temperature, pressure change, ensure that the long-term safety reliable sealing of ball valve under different operating mode;
4), at sleeve 11 built with thrust ball bearing 12, to ensure the moving element flexibility and reliability motion under high pressure of ball valve, reduce the driving torque of motor 15 rotating shaft, reduce the power loss of ball valve, more energy-conservation.
5), the flow-in hole 16 of this ball valve and flow-out hole 17 be arranged in same end face, and overall volume is little, compact structure, and the installing space narrow and small with circulating line is compatible.
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 done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an electric ball valve, comprise valve pocket (1) and be arranged on the gudgeon ball spool (7) in valve pocket (1), the valve rod (8) being resisted against the valve seat (2) on gudgeon ball spool (7) and gudgeon ball spool (7) can be driven to rotate, the quantity of valve seat (2) is two, two valve seats (2) are symmetrically distributed in the both sides of gudgeon ball spool (7), valve pocket (1) entirety is in cylindricality, valve pocket (1) comprises valve body (10) and is fixedly mounted on the sleeve (11) on valve body (10), gudgeon ball spool (7) is provided with influent stream passage (13) and goes out circulation road (14), it is characterized in that: sleeve (11) is provided with away from one end of valve body (10) can the motor (15) that rotates of actuate valve stem (8), the end face of valve body (10) away from sleeve (11) is provided with a flow-in hole (16) and two flow-out holes (17), the axis of flow-in hole (16) and the axis of valve body (10) collinear, two flow-out holes (17) are distributed in the both sides of flow-in hole (16) about flow-in hole (16) Central Symmetry, be provided with in valve body (10) influent stream connecting path (18) for being communicated with flow-in hole (16) and influent stream passage (13) with for be communicated with flow-out hole (17) with go out circulation road (14) go out to flow connecting path (19), each valve seat (2) is upper all can produce elastic strain thus the flexible compensation part (5) applying elastic compression valve seat (2) against having, each flexible compensation part (5) is upper all against there being a plug screw (4), plug screw (4) is arranged on valve body (10), valve seat (2), flexible compensation part (5) and plug screw (4) are arranged along the radial direction of valve body (10), valve seat (2) is provided with the first intermediate hole (20) going out circulation road (14) for being communicated with on gudgeon ball spool (7), flexible compensation part (5) is provided with the second intermediate hole (21) for being communicated with the first intermediate hole (20) and flow-out hole (17).
2. a kind of electric ball valve according to claim 1, it is characterized in that: described valve rod (8) comprises large end (22) and small end (23), the large end (22) of valve rod (8) is connected in the rotating shaft of motor (15), the small end (23) of valve rod (8) is resisted against on gudgeon ball spool (7), the large end (22) of valve rod (8) is processed with the arc boss (24) that radian is 90 °, it is the arc groove of 270 ° that the inwall of valve body (10) is processed with the corresponding radian with the arc boss (24) on valve rod (8), arc boss (24) rotates in arc groove, thus the rotational travel of valve rod (8) is controlled within 180 °.
3. a kind of electric ball valve according to claim 1, it is characterized in that: described gudgeon ball spool (7) is provided with the first square opening near one end of valve rod (8), described valve rod (8) is provided with first square boss (25) corresponding to the first square opening near one end of gudgeon ball spool (7), and the first square boss (25) to stretch in the first square opening thus makes valve rod (8) drive gudgeon ball spool (7) to rotate.
4. a kind of electric ball valve according to claim 1, it is characterized in that: described valve rod (8) is provided with the second square opening near one end of motor (15), the rotating shaft of described motor (15) is provided with second square boss (26) corresponding to the second square opening, second square boss (26) stretches in the second square opening, thus makes motor (15) be with ovable valve stem (8) to rotate.
5. a kind of electric ball valve according to claim 4, it is characterized in that: thrust ball bearing (12) is installed in described sleeve (11), the rotating shaft of described motor (15) is connected on valve rod (8) through after thrust ball bearing (12), valve rod (8) is resisted against on the side of thrust ball bearing (12) near one end of motor (15), and end face and the valve rod (8) of one end of the close valve rod (8) of the second square boss (26) exist gap between the inwall at the second square opening place.
6. a kind of electric ball valve according to claim 1, it is characterized in that: described flexible compensation part (5) is provided with elastically-deformable curved part (27) can occur, described curved part (27) is connected on valve seat (2).
7. a kind of electric ball valve according to claim 1, is characterized in that: described valve seat (2) is socketed with the first seal ring (3).
8. a kind of electric ball valve according to claim 1, is characterized in that: described plug screw (4) is socketed with the second seal ring (6).
9. a kind of electric ball valve according to claim 1, is characterized in that: described valve rod (8) is socketed with valve rod (8) the 3rd seal 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 |
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| CN104329480A true CN104329480A (en) | 2015-02-04 |
| CN104329480B CN104329480B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410497472.2A Expired - Fee Related CN104329480B (en) | 2014-09-24 | 2014-09-24 | A kind of electrical ball valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105402442A (en) * | 2015-12-18 | 2016-03-16 | 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 | High-temperature and high-pressure ball valve |
| WO2022237869A1 (en) * | 2021-05-13 | 2022-11-17 | 浙江三花汽车零部件有限公司 | Heat exchanger |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20010032951A1 (en) * | 1999-10-13 | 2001-10-25 | Robert C. Stewart | Ball valve stem seal arrangement |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105402442A (en) * | 2015-12-18 | 2016-03-16 | 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 | High-temperature and high-pressure ball 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 |
| WO2022237869A1 (en) * | 2021-05-13 | 2022-11-17 | 浙江三花汽车零部件有限公司 | Heat exchanger |
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| Publication number | Publication date |
|---|---|
| CN104329480B (en) | 2016-05-25 |
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