WO2021052018A1 - 一种dbb强制密封阀及操作装置 - Google Patents
一种dbb强制密封阀及操作装置 Download PDFInfo
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- WO2021052018A1 WO2021052018A1 PCT/CN2020/105504 CN2020105504W WO2021052018A1 WO 2021052018 A1 WO2021052018 A1 WO 2021052018A1 CN 2020105504 W CN2020105504 W CN 2020105504W WO 2021052018 A1 WO2021052018 A1 WO 2021052018A1
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- Prior art keywords
- valve
- dbb
- rocker
- locking
- rocker arm
- Prior art date
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- 238000007789 sealing Methods 0.000 claims abstract description 94
- 230000007704 transition Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical 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
- F16K5/0605—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 with particular plug arrangements, e.g. particular shape or built-in 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
- F16K5/0647—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
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/204—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing
Definitions
- the present disclosure belongs to a forced sealing valve, and more particularly relates to a DBB forced sealing valve and an operating device.
- the DBB forced sealing valve has outstanding and excellent sealing performance.
- the valve can realize online sealing detection under pressure in the closed position, which can ensure the reliability of valve closing.
- different media are usually stored separately.
- the medium between the tank and the tank needs to be tightly isolated to prevent huge losses caused by the mixing of the media. Therefore, the isolation valve at the root of the tank and the tank farm
- the shut-off valve must use a DBB forced sealing valve.
- DBB mandatory sealing valves is mandatory for mainstream international standards.
- the DBB forced sealing valve on the market is a kind of expansion plug valve, as shown in Figure 10.
- the valve core is composed of a wedge plug and two discs on both sides, and the valve core is not between the switch positions.
- the wedge cock is driven down by the valve stem, and the disc is pushed through the wedge inclined surface to achieve a forced seal.
- the valve stem needs to complete a complex rotation and lifting movement through a complex operating mechanism during the entire valve opening and closing process. Since the lifting movement of the valve stem is the same as the escape direction of the medium, the sealing of the valve stem of this kind of valve is easy to occur. The place of the leak.
- the complicated operating mechanism is arranged at the valve stem, so that the size of the valve stem part of this kind of valve is huge, usually more than double the height of the valve body.
- the valve core of this valve has to adopt a geometric shape similar to that of a plug valve. Limited by its geometric structure, if the flow passage of this valve adopts a full diameter, the valve body will be very large. Therefore, the valve body is very large.
- the cross section of the runner usually has to adopt a reduced diameter form such as a rectangle or a rhombus. Such a compromise design has a huge impact on the flow capacity of the valve.
- the purpose of the present disclosure is to propose a technical solution for a DBB forced sealing valve and an operating device, optimize the structural design of the DBB forced sealing valve, improve the sealing reliability at the valve stem, improve the valve flow capacity, and make the operating mechanism simple, reliable.
- a DBB forced sealing valve including a valve body, a valve seat, a valve core arranged in the valve body, and a valve core arranged in the valve body and located on the valve core
- the upper valve flap driving member and the lower valve flap driving member on both sides; and the sealing valve flap arranged between the valve seat and the upper valve flap driving member and the lower valve flap driving member.
- the upper valve flap driver and the lower valve flap driver can move along the rotation axis of the valve core, and the upper valve flap driver and the lower valve flap driver drive the sealing valve flap top Press or detach from the valve seat.
- valve core is provided with a flow channel; the upper valve flap driving member and the lower valve flap driving member are located on both sides of the flow channel.
- the DBB forced sealing valve includes a valve stem that drives the valve core to rotate.
- the DBB forced sealing valve further includes upper drives arranged on the valve core and located on both sides of the flow channel.
- a shaft and a lower drive shaft, the upper drive shaft and the lower drive shaft drive the upper valve flap driver and the lower valve flap driver to move along the rotation axis of the valve core through a thread.
- the upper valve flap driving member is provided with an upper drive track for driving the sealing valve flap, and the upper drive track is inclined to the rotation axis of the valve core;
- the lower valve flap driving member is provided with a lower driving track for driving the sealing valve flap, and the lower driving track is inclined to the rotation axis of the valve core.
- a preferred drive track structure is that the upper drive track and the lower drive track are dovetail tracks.
- the lower flap driving member is provided with a plurality of guide holes; the upper flap driving member is provided with a plurality of guide posts correspondingly inserted into the guide holes.
- valve body includes a valve cover; the valve cover is provided with a limiting groove; the upper valve flap driving member is provided with a limiting rod corresponding to the limiting groove.
- one end of the valve stem is provided with a hexagonal prism; one end of the upper drive shaft is provided with an inner hexagonal hole; the hexagonal prism is located in the inner hexagonal hole and is matched with the inner hexagonal hole.
- An operating device for a DBB forced sealing valve comprising: a valve core set in the valve body of the DBB forced sealing valve;
- a locking rocker arm provided in the disc drive member of the DBB forced sealing valve
- a rocker arm base surface provided in the valve body, the rocker arm base surface is provided with a locking guide groove;
- valve core drives the valve flap drive member to rotate within the rotation stroke between the open position and the closed position.
- valve flap drive member rotates to the closed position
- the valve core toggles the lock
- the rocker arm enters the locking guide groove, the valve core continues to rotate in the closing direction, driving the upper disc drive member to move along the rotation axis of the valve core, and the locking rocker arm moves in the locking guide groove .
- the locking rocker arm is provided with a rotating rocker
- the valve core is provided with a rocker guide groove and a rocker guide surface, and when the disc drive member rotates between the open position and the closed position
- the rotating rocker is embedded in the rocker guide groove, the locking rocker arm moves under the restriction of the base surface of the rocker arm, and the valve core drives the flap driving member to rotate; the flap driving member
- the rocker guide groove rotates the locking rocker arm through the rotary rocker, the locking rocker arm enters the locking guide groove, and the rotary rocker is in the rocker
- the rod guide surface moves.
- the rocker guide groove is provided at the starting end of the rocker guide surface.
- the opening of the locking guide groove is provided with a transition groove, and when the disc drive member rotates to the closed position, the locking rocker arm moves along the The transition groove enters the locking guide groove.
- the beneficial effects of the present disclosure are: the balanced valve core design is adopted, which completely solves the frustration of the current DBB forced sealing valve that requires the valve stem to be raised and lowered to achieve forced sealing, greatly simplifies the structure of the valve stem, and greatly improves the reliability of the sealing at the valve stem. . More importantly, the upper and lower disc drive parts are used to realize the movement and forced sealing of the disc in a bidirectional inclined plane drive, which can effectively reduce the structural size and the geometry of the valve core can be essentially Optimization, so that the valve flow path can naturally adopt the same round hole shape as the pipeline, which greatly improves the flow capacity of the valve and makes the overall size of the valve body very compact.
- the geometric optimization of the upper disc drive part, the lower disc drive part, and the valve core also makes the valve body structure jump out of the complicated casting valve body structure limitation that the current DBB mandatory sealing valve has to adopt.
- the DBB mandatory sealing valve valve of the present disclosure The body can flexibly adopt the side-mounted valve body structure, top-mounted structure or all-welded structure of ordinary ball valves, which can be better adapted to a variety of applications.
- the spool is used to drive and lock the rocker arm.
- the structure is compact, which makes the opening and closing of the valve convenient and reliable.
- Fig. 1 is a schematic structural diagram of a DBB forced sealing valve in an embodiment of the present disclosure
- Figure 2 is an exploded view of the DBB forced sealing valve in Figure 1;
- Figure 3 is an exploded view of the valve core, the upper valve flap driving member, the lower valve flap driving member and the valve flap in an embodiment of the present disclosure
- valve 4 is an axial view of the valve body in an embodiment of the present disclosure, the valve seat is omitted, and the valve is in an open state;
- Figure 5 is an axial view of the valve body in an embodiment of the present disclosure, with the valve seat omitted, and the upper disc drive member rotating between the open position and the closed position;
- Figure 6 is an axial view of the valve body in an embodiment of the present disclosure, with the valve seat omitted and the upper disc drive member in the closed position;
- valve body 7 is an axial view of the valve body in an embodiment of the present disclosure, the valve seat is omitted, the upper disc drive member is in the closed position, and the valve core dials the locking rocker arm to enter the locking guide groove;
- FIG. 8 is a structural diagram of the valve in a forced sealing state in an embodiment of the present disclosure. In order to show the state of locking the rocker arm, the front side sealing valve disc is omitted;
- Figure 9 is a side sectional view of the valve in a forced sealing state in an embodiment of the present disclosure.
- Fig. 10 is a schematic diagram of a DBB forced sealing valve in the related art.
- a DBB forced sealing valve includes a valve body 10, a valve seat 20 and a valve stem 30; the valve stem drives the valve core 40 to rotate, and the valve core is provided with a flow passage 41. Both sides of the flow passage are respectively provided with an upper valve flap driver 50 and a lower valve flap driver 60.
- the upper valve is driven
- the flap driver and the lower valve flap driver move along the valve core rotation axis, and the upper valve flap driver and the lower valve flap driver drive the sealing valve flap 70 to press against or disengage from the valve seat.
- An upper drive shaft 47 and a lower drive shaft 48 are respectively provided on both sides of the valve core flow passage, and the upper drive shaft and the lower drive shaft drive the upper valve flap driving member and the lower valve flap driving member through threads mobile.
- the screw threads of the upper drive shaft and the lower drive shaft are opposite to each other.
- the upper disc drive part is provided with an upper drive track 51 for driving the sealing valve disc, and the upper drive track is inclined to the rotation axis of the valve core; the lower disc drive part is provided with an upper drive track 51 for driving the sealing valve.
- the lower driving track 61 of the flap is inclined to the rotation axis of the valve core.
- the upper drive track and the lower drive track are dovetail tracks.
- a DBB forced sealing valve operating device the DBB forced sealing valve is provided with a valve body 10, a valve core 40 and an upper disc drive member 50, the valve core is provided with a flow passage 41, so The above-mentioned valve disc drive member rotates in the rotation stroke between the open position (the position shown in FIG. 4) and the closed position (the position shown in FIG. 1), and the valve core drives the upper valve disc drive member Rotate.
- the upper disc drive member is provided with a locking rocker arm 52, the valve body is provided with a rocker arm base surface 17, the rocker arm base surface is provided with a locking guide groove 11, and the valve body is provided with an open limit and
- the valve core moves the locking rocker arm into the locking guide groove (as shown in FIG. 7), and the valve core continues to the closing direction ( Figure 4, the direction of R2) rotates to drive the upper disc drive member to move along the spool rotation axis, and the locking rocker arm moves in the locking guide groove (as shown in Figures 8 and 9).
- the locking rocker arm is provided with a rotating rocker 53, the valve core is provided with a rocker guide groove 44 and a rocker guide surface 45, when the upper disc drive member rotates between the open position and the closed position (as shown in the figure) 5.
- the rotating rocker is embedded in the rocker guide groove, the locking rocker arm moves under the restriction of the rocker base surface, and the valve core drives the upper disc drive member Rotation; when the upper valve flap driving member rotates to the closed position, the rocker guide groove rotates the locking rocker arm through the turning rocker, the locking rocker arm enters the locking guide groove, the Rotate the rocker to move on the guide surface of the rocker.
- the rocker guide groove is provided at the beginning end of the rocker guide surface.
- the opening of the locking guide groove is provided with a transition groove 12, and in some working conditions, when the upper valve flap driving member rotates to the closed position, the locking rocker arm enters the locking guide groove along the transition groove.
- a DBB forced sealing valve includes a valve body 10, a valve seat 20 and a valve stem 30.
- the valve body described in the present disclosure is a valve body of a broad concept, including a valve body body 10, the valve body body is cylindrical, a valve cover 1A is provided on the upper side of the valve body body, the valve cover and the valve body body are provided Through the shaft hole 14, the valve stem is installed in the shaft hole.
- An upper bearing block 1B is arranged on the upper side of the valve body body, and a lower bearing block 1C is arranged on the lower side of the valve body body.
- the upper bearing block and the lower bearing block are respectively provided with bearing holes (15, 16).
- the valve body 10, the valve cover 1A, the upper bearing block 1B and the lower bearing block 1C are fixedly connected as a whole to form a generalized valve body.
- a sealing ring 32 is provided between the valve stem and the valve cover.
- valve seat 20 Both ends of the valve body are respectively provided with a generalized valve seat 20 (the valve seat in this embodiment is an assembly of a narrow valve seat and a valve end).
- a valve core 40 is installed in the valve body.
- the valve core is installed in the valve body through the bearing holes of the upper bearing block 1B and the lower bearing block 1C.
- a valve core ball 43 is provided in the center of the valve core.
- the upper end of the valve core ball is provided with an upper drive shaft 47, and the lower end of the valve core ball is provided with a lower drive shaft 48.
- the upper drive shaft and the lower drive shaft are provided with threads, and the threads of the upper drive shaft and the lower drive shaft have opposite directions.
- An inner hexagonal hole 46 is provided at the top of the upper drive shaft.
- a section of hexagonal prism 31 corresponding to the inner hexagonal hole of the valve core is provided at the lower end of the valve stem.
- the valve stem drives the valve core 40 to rotate through the hexagonal prism, and the valve stem can also pass through Other connection methods drive the spool.
- An upper disc drive member 50 and a lower disc drive member 60 are respectively provided on both sides of the flow passage of the valve core.
- the upper disc drive part is provided with a screw hole 55 that is threadedly connected with the upper drive shaft of the valve core
- the lower disc drive part is provided with a screw hole 62 that is threadedly connected with the lower drive shaft of the valve core
- the lower disc drive part is provided with four
- the valve core drives the upper disc drive member and the lower disc drive member to move in opposite directions through threads.
- Both sides of the upper disc driving member are respectively provided with upper driving rails 51 for driving the sealing disc.
- the upper driving rail is inclined to the rotation axis of the spool at the upper end inward, and the angle between the upper driving rail and the rotation axis of the spool is ⁇ 1.
- Both sides of the lower disc drive member are respectively provided with lower drive rails 61 for driving the sealed valve disc.
- a sealing valve disc 70 is provided on both sides of the upper disc drive part and the lower disc drive part respectively.
- the sealing disc is provided with an upper disc guide groove 71 that is matched with the upper drive rail 51 and a disc upper guide groove 71 that is matched with the lower drive rail 61.
- the upper valve flap driving member and the lower valve flap driving member are driven to move along the valve core rotation axis in opposite directions.
- the upper disc driver and the lower disc driver move away from the flow path, the upper disc driver and the lower disc driver drive the sealing disc to move outward, pressing the valve seat .
- the upper valve flap driving member and the lower valve flap driving member move in a direction approaching the flow channel, and the upper valve flap driving member and the lower valve flap driving member drive the sealing valve flap to leave the valve seat.
- the upper drive track and the lower drive track can adopt guide tracks of various structures, such as rectangular track, T-shaped track, cylindrical track, etc.
- This embodiment adopts a dovetail track, which has a relatively compact structure and a relatively stable transmission function.
- the DBB forced sealing valve of this embodiment absorbs the excellent sealing function of the current DBB forced sealing valve on the market, realizes a round hole-shaped valve medium channel, and the diameter is fully adapted to the conveying pipeline, and has a good medium circulation effect.
- the disc drive part and the lower disc drive part realize the movement and forced sealing of the disc in a two-way inclined plane driving manner, which effectively reduces the structural size of the valve and is suitable for various pipeline installation occasions.
- a DBB forced sealing valve operating device As shown in Figures 1 to 4, a DBB forced sealing valve operating device, the operating device of this embodiment is the operating device of the DBB forced sealing valve described in the first embodiment.
- the forced sealing valve is provided with a valve body 10, a rotating valve core 40 and an upper disc drive member 50.
- the valve core is provided with a flow passage 41, and the valve core drives the upper disc drive member in the open position (e.g. Turn between the position shown in Figure 4) and the closed position (the position shown in Figure 1).
- the upper disc drive part is driven by the thread to move along the spool rotation axis, so that the sealing disc reciprocates toward the valve seat, realizing the forced sealing and opening of the valve.
- the DBB forced sealing valve requires a set of operating devices. During the closing operation, the valve stem completes the 90° rotation closing and forced sealing of the sealing disc in a one-way rotation stroke. During the opening operation, the valve stem is in a one-way The unsealing of the sealed valve disc and the 90° rotation opening operation are completed during the rotation stroke.
- the upper disc drive member is provided with a locking rocker arm 52, and the rotation axis of the locking rocker arm is perpendicular to the rotation axis of the valve core.
- the locking rocker arm is provided with a rotating rocker 53.
- the bottom surface 17 of the upper bearing block 1B of the valve body is the base surface of the rocker arm.
- the base surface of the rocker arm is provided with a locking guide groove 11, and an arc-shaped transition groove 12 is provided at the opening of the locking guide groove.
- the valve core ball 43 is provided with a rocker guide groove 44 and a rocker guide surface 45, and the rocker guide surface is a spiral surface surrounding the valve core ball.
- the rocker guide groove is arranged at the starting end of the rocker guide surface, and the starting end refers to the front end of the valve core when it rotates in the closing direction.
- the upper disc drive part rotates between an open position and a closed position, and the rotation stroke of the upper disc drive part is 90°.
- the valve cover 1A is provided with a limit groove 13, and the upper disc drive member is provided with a limit rod 54 corresponding to the limit groove 13, the limit groove and The limit rod limits the rotation stroke of the upper disc drive member.
- the valve stem drives the valve core to rotate in the closing direction (R2 direction as shown in Figure 4).
- the upper disc drive member rotates to the closed position, it stops rotating.
- the rocker guide groove 44 of the valve core rotates the rocker 53 Toggle the locking rocker arm 52 to rotate, the locking rocker arm enters the locking guide groove 11, the rotating rocker comes out of the rocker guide groove 44 (as shown in FIG. 7), and the rotating rocker moves on the rocker guide surface 45.
- the upper disc drive part rotates freely with the spool, and the locking rocker arm can also rotate freely with the upper disc driving part.
- the top end of the locking rocker arm does not contact the base surface 17 of the rocker arm.
- the top end of the locking rocker arm 52 is in sliding contact with the rocker base surface 17, in order to avoid locking the rocker arm and the rocker arm base surface. Excessive friction is generated between them.
- a rolling bearing 57 is provided on the top of the locking rocker arm; during such a movement, due to the pushing action of the rocker guide groove 44, the top of the locking rocker arm 52 can directly enter the locking guide. Slot 11.
- the valve core continues to rotate in the closing direction ( Figure 4, R2 direction), and the upper disc drive member is driven to move upward along the spool rotation axis through the upper drive shaft 47, and the locking rocker arm moves in the locking guide groove (Figure 8, Figure 8). 9).
- the spool drives the lower spool driver to move down along the spool rotation axis through the lower drive shaft 48, so that the "upper spool driver and the lower spool driver are moving away from the flow path in the first embodiment".
- the upper and lower disc drive parts drive the sealing disc to move outwards and press against the valve seat" to realize the forced sealing of the valve.
- the valve core rotates in the direction of opening (as shown in Figure 4, the direction of R1). Since the locking rocker arm 52 is in the locking guide groove 11, the position of the upper disc driving member is locked, and the upper disc driving member will not Rotate with the spool.
- the spool simultaneously drives the upper and lower disc drive parts to move along the spool rotation axis through the upper drive shaft 47 and the lower drive shaft 48, so as to realize the "upper disc drive part and lower disc drive part" described in the first embodiment.
- the driving part moves in the direction approaching the flow channel, and the upper and lower disc driving parts drive the sealing disc to separate from the valve seat".
- the present disclosure adopts a mechanism that a valve core drives and locks the rocker arm, and has a compact structure, which makes the opening and closing operation of the valve convenient and reliable.
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Abstract
Description
Claims (14)
- 一种DBB强制密封阀,包括:阀体;阀座;设置在所述阀体中的阀芯;设置在所述阀体中并位于所述阀芯两侧的上阀瓣驱动件和下阀瓣驱动件;设置在所述阀座与所述上阀瓣驱动件、所述下阀瓣驱动件之间的密封阀瓣;其中,所述上阀瓣驱动件和所述下阀瓣驱动件可沿所述阀芯的旋转轴线移动,所述上阀瓣驱动件和所述下阀瓣驱动件驱动所述密封阀瓣顶压或脱离所述阀座。
- 根据权利要求1所述的DBB强制密封阀,其中,所述阀芯设有流道;所述上阀瓣驱动件和所述下阀瓣驱动件位于所述流道的两侧。
- 根据权利要求2所述的DBB强制密封阀,其中,所述DBB强制密封阀包括驱动所述阀芯转动的阀杆。
- 根据权利要求3所述的DBB强制密封阀,其中,所述DBB强制密封阀还包括设置在所述阀芯上并分别位于所述流道两侧的上驱动轴和下驱动轴;所述上驱动轴和下驱动轴通过螺纹驱动所述上阀瓣驱动件和所述下阀瓣驱动件沿所述阀芯的旋转轴线移动。
- 根据权利要求4所述的DBB强制密封阀,其中,所述上驱动轴和所述下驱动轴的螺纹旋向相反。
- 根据权利要求1至5中任何一项所述的DBB强制密封阀,其中,所述上阀瓣驱动件设有驱动所述密封阀瓣的上驱动轨道,所述上驱动轨道倾斜于所述阀芯的旋转轴线;所述下阀瓣驱动件设有驱动所述密封阀瓣的下驱动轨道,所述下驱动轨道倾斜于所述阀芯的旋转轴线。
- 根据权利要求6所述的DBB强制密封阀,其中,所述上驱动轨道和下驱动轨道是燕尾轨道。
- 根据权利要求1所述的DBB强制密封阀,其中,所述下阀瓣驱动件 设有多个导孔;所述上阀瓣驱动件设有对应插入所述导孔的多个导柱。
- 根据权利要求1所述的DBB强制密封阀,其中,所述阀体包括阀盖;所述阀盖上设有限位槽;所述上阀瓣驱动件设有与所述限位槽对应的限位杆。
- 根据权利要求3所述的DBB强制密封阀,其中,所述阀杆的一端设有六棱柱;所述上驱动轴的一端设有一个内六方孔;所述六棱柱位于所述内六方孔中并与所述内六方孔配合。
- 一种DBB强制密封阀的操作装置,包括:设置在DBB强制密封阀的阀体中的阀芯;设置在所述DBB强制密封阀的阀瓣驱动件中的锁定摇臂;设置在所述阀体中的摇臂基面,所述摇臂基面设有锁定导槽;其中,所述阀芯带动所述阀瓣驱动件在开启位置和关闭位置之间的转动行程内转动,所述阀瓣驱动件转动到所述关闭位置时,所述阀芯拨动所述锁定摇臂进入所述锁定导槽,所述阀芯继续向关闭方向转动、带动所述阀瓣驱动件沿所述阀芯的旋转轴线移动,所述锁定摇臂在所述锁定导槽内移动。
- 根据权利要求11所述的DBB强制密封阀的操作装置,其中,所述锁定摇臂设有转动摇杆,所述阀芯设有摇杆导槽和摇杆导面,所述阀瓣驱动件在所述开启位置和所述关闭位置之间转动时,所述转动摇杆嵌在所述摇杆导槽,所述锁定摇臂在所述摇臂基面约束下移动,所述阀芯带动所述阀瓣驱动件转动;所述阀瓣驱动件转动到所述关闭位置时,所述摇杆导槽通过所述转动摇杆拨动所述锁定摇臂转动,所述锁定摇臂进入所述锁定导槽,所述转动摇杆在所述摇杆导面上移动。
- 根据权利要求11所述的DBB强制密封阀的操作装置,其中,所述摇杆导槽设置在所述摇杆导面的起始端。
- 根据权利要求11所述的DBB强制密封阀的操作装置,其中,所述锁定导槽的开口设有过渡槽,所述阀瓣驱动件转动到所述关闭位置时,所述锁定摇臂沿所述过渡槽进入所述锁定导槽。
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EP20865688.4A EP4033129A4 (en) | 2019-09-20 | 2020-07-29 | DBB FORCED SEALING VALVE AND OPERATION DEVICE |
CA3120214A CA3120214C (en) | 2019-09-20 | 2020-07-29 | Dbb forced sealing valve and operation device |
JP2021529126A JP7490253B2 (ja) | 2019-09-20 | 2020-07-29 | Dbb強制シーリングバルブおよび操作装置 |
US17/118,739 US11313477B2 (en) | 2019-09-20 | 2020-12-11 | Ball valve with forced-sealing operation |
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CN111156328B (zh) * | 2020-01-20 | 2021-07-06 | 上海亚奥阀门有限公司 | 一种锻钢硬密封浮动球阀 |
CN112096904B (zh) * | 2020-07-27 | 2022-06-10 | 国家石油天然气管网集团有限公司华南分公司 | 一种盘式电机协同面凸轮驱动伸缩式无摩擦球阀 |
CN112096905B (zh) * | 2020-07-27 | 2022-06-10 | 国家石油天然气管网集团有限公司华南分公司 | 一种盘式电机协同面凸轮驱动阀芯阀座分离型无摩擦球阀 |
CN112096899B (zh) * | 2020-07-27 | 2022-04-08 | 国家石油天然气管网集团有限公司华南分公司 | 锥形电机伺服直驱式伸缩型无摩擦球阀 |
CN112096906B (zh) * | 2020-07-27 | 2023-01-03 | 西安交通大学 | 一种直线和旋转电机协同驱动的伸缩式无摩擦球阀 |
CN114367551B (zh) * | 2020-10-15 | 2024-03-26 | 北京京诚瑞信长材工程技术有限公司 | 分水阀组和用于长材优特钢生产线的多通道水冷装置 |
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EP4033129A4 (en) | 2023-11-08 |
JP7490253B2 (ja) | 2024-05-27 |
JP2022549536A (ja) | 2022-11-28 |
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CN110594442A (zh) | 2019-12-20 |
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