WO2021237674A1 - Soupape rotative et procédé de commande - Google Patents

Soupape rotative et procédé de commande Download PDF

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Publication number
WO2021237674A1
WO2021237674A1 PCT/CN2020/093258 CN2020093258W WO2021237674A1 WO 2021237674 A1 WO2021237674 A1 WO 2021237674A1 CN 2020093258 W CN2020093258 W CN 2020093258W WO 2021237674 A1 WO2021237674 A1 WO 2021237674A1
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WO
WIPO (PCT)
Prior art keywords
pawl
swing arm
turntable
angle
rotary valve
Prior art date
Application number
PCT/CN2020/093258
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English (en)
Chinese (zh)
Inventor
甘泉
侯守坤
刘世俊
朱国庆
Original Assignee
上海船用柴油机研究所
上海齐耀热能工程有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 上海船用柴油机研究所, 上海齐耀热能工程有限公司 filed Critical 上海船用柴油机研究所
Priority to CN202080006120.6A priority Critical patent/CN114072605A/zh
Priority to PCT/CN2020/093258 priority patent/WO2021237674A1/fr
Publication of WO2021237674A1 publication Critical patent/WO2021237674A1/fr

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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
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces

Definitions

  • the present invention relates to the technical field of valves, in particular to a rotary valve and a control method.
  • the rotary valve is mainly used in the simulated moving bed process in the petrochemical industry. It is the key equipment to realize the continuous adsorption and separation process and purify the desired product.
  • Existing rotary valves usually rely on hydraulic systems to provide power, but hydraulic parts are prone to problems such as hydraulic oil leakage, jamming between parts, jamming or signal interruption of the electromagnetic four-way spool, and damage to hydraulic cylinder components.
  • the turntable of the rotary valve still has the problem of not being able to operate continuously, and it is not easy to accurately control the angle.
  • the instantaneous error and error accumulation generated by the ratchet wheel of the rotary valve during rotation cannot be eliminated, which limits the processing capacity of the simulated moving bed process system. This leads to a reduction in production efficiency and a substantial increase in production costs.
  • a pawl the pawl includes a connecting end and a free end, the connecting end is connected to the swing arm, the free end is used to abut against the teeth of the ratchet, the swing arm swings to drive the pawl Swing, so that the pawl pushes the ratchet wheel to rotate to drive the turntable to rotate;
  • the fixed plate is arranged below the turntable, and the turntable is rotatable relative to the fixed plate. From this, the material can be distributed.
  • the control device controls the pawl to move in the reverse direction and judges whether the actual movement angle deviation is greater than the error value.
  • the rotation accuracy of the ratchet wheel is further improved.
  • the servo motor 121 and the servo electric cylinder 122 provide power to improve reliability, avoid failures caused by oil leakage and blockage of the existing hydraulic system, and avoid downtime caused by regular replacement of the filter system and solenoid valve maintenance. Further, the servo control system (servo motor 121, servo electric cylinder 122, control device 160 and corresponding angle, displacement, and torque sensing devices) adopts closed-loop servo control, which has high control accuracy, accurate angle, displacement, and torque measurement accuracy, and response Time is fast.
  • the rotary valve 100 further includes a pawl 151 and a ratchet wheel 152, and both the pawl 151 and the ratchet wheel 152 are arranged above the turntable 110 along the height direction of the rotary valve 100.
  • the axial direction of the ratchet wheel 152 is parallel to the axial direction of the turntable 110, and the radial direction of the ratchet wheel 152 is parallel to the radial direction of the turntable 110.
  • the pawl 151 can push the ratchet wheel 152 to rotate around the axial direction of the ratchet wheel 152.
  • the pawl 151 includes a connecting end and a free end, and the connecting end of the pawl 151 is connected to the swing arm 131.
  • the connecting end of the pawl 151 is connected to the lower surface of the swing arm 131 along the height direction of the rotary valve 100.
  • the swing direction of the pawl 151 is the same as the swing direction of the swing arm 131 and is parallel to the telescopic movement direction of the piston rod 123 of the servo electric cylinder 122.
  • the rotary valve 100 also includes a fixed plate, a sealing plate, and a central shaft 117.
  • the sealing plate and the rotary plate are connected together, and both the sealing plate and the rotary plate can rotate relative to the fixed plate.
  • the fixed plate and the sealing plate will be described in detail later.
  • the ratchet wheel 152 is connected to the turntable 110 through the central shaft 117.
  • the central shaft 117 can be fixedly connected to both the ratchet wheel 152 and the turntable 110.
  • "fixed connection" means that the ratchet wheel 152 and the turntable 110 are relatively fixed, that is, the ratchet wheel 152 and the turntable 110 are stationary with each other, but the ratchet wheel 152 and the turntable 110 can be detached. In this way, swinging of the swing arm 131 can drive the pawl 151 to swing, so that the pawl 151 pushes the ratchet wheel 152 to rotate to drive the turntable 110 to rotate.
  • the swing arm 131 includes two side surfaces opposite to the swing direction of the swing arm 131.
  • the swing direction of the swing arm 131 is parallel to the telescopic movement direction of the servo electric cylinder 122.
  • the rotary valve 100 further includes a first protruding piece 132 and a second protruding piece 133, the first protruding piece 132 and the second protruding piece 133 are respectively arranged on two opposite sides of the swing arm 131.
  • the first protrusion 132 and the second protrusion 133 are both fixedly connected to the swing arm 131.
  • the first protrusion 132 and the second protrusion 133 can be connected to the swing arm 131 by welding.
  • the protruding piece 132 and the second protruding piece 133 can swing with the swing arm 131.
  • both the first protrusion 132 and the second protrusion 133 are configured as triangular plates, thereby ensuring stability.
  • the corners of the first protruding piece 132 and the second protruding piece 133 may both be configured as rounded corners to avoid damage.
  • the limit frame 141 is provided with a guide groove 144, and the guide groove 144 is provided with an initial limit member 142 and an end limit member 143, and both the initial limit member 142 and the end limit member 143 are movable relative to the guide groove 144.
  • the extending direction of the guide groove 144 is parallel to the telescopic movement direction of the piston rod 123 of the servo electric cylinder 122.
  • Both the start stopper 142 and the end stopper 143 can slide in the guide groove 144, and can be adjusted to predetermined positions and then fixed. Thus, the swing amplitude of the swing arm 131 can be adjusted.
  • the “predetermined position” refers to the positions where the start stopper 142 and the end stopper 143 are respectively set.
  • an angle indicating plate 162 is provided under the ratchet wheel 152, and the angle indicating plate 162 is coaxially arranged with the ratchet wheel 152 and both are connected to the turntable 110 through a central shaft 117.
  • the angle indicating plate 162 is arranged above the turntable 110 so as to be able to indicate angle information in real time with high reliability.
  • the angle indicating disc 162 includes a disc surface and a pointer, and the disc surface is connected with the central shaft 117 and the ratchet wheel 152. The rotation of the ratchet wheel 152 drives the disc surface to rotate relative to the pointer, so that the pointer indicates the angle of rotation of the ratchet wheel 152.
  • the top of the central shaft 117 in the height direction of the rotary valve 100 passes through the center of the ratchet wheel 152 and the angle indicating plate 162 and is connected to the ratchet wheel 152 and the angle indicator plate 162. 110 connections.
  • the turntable 110 can rotate in synchronization with the ratchet wheel 152.
  • the central shaft 117 may be formed by a multi-segment shaft connected by a coupling.
  • the control device 160 may be configured to control the movement of the servo motor 121 according to the conflict between the first protrusion 132 and the initial limit member 142. Specifically, now returning to FIG. 3, the servo motor 121 drives the piston rod 123 of the servo electric cylinder 122 to retract, and the swing arm 131 swings. At the same time, the swing arm 131 drives the first protrusion 132 to move in the direction of the initial stopper 142. The pawl 151 moves in the second direction D2. At this time, the ratchet wheel 152 does not rotate.
  • the swing of the swing arm 131 drives the first protruding member 132 to abut the initial limit member 142, the piston rod 123 of the servo electric cylinder 122 stops retracting, and the swing arm 131 stops swinging.
  • the control device feels that the movement stops and can make corresponding control operations. The control operation will be described later.
  • the control device controls the servo motor 121 to run, thereby controlling the piston rod 123 of the servo electric cylinder 122 to continue to retract, increasing the swing range of the swing arm 131, and finally As a result, the first protruding member 132 and the initial limiting member 142 abut against each other. As a result, it can be ensured that the swing arm 131 swings to a position where it collides with the starting limiter 142, which has high reliability and can be adjusted online in real time.
  • the control device controls the servo motor 121 to operate, thereby controlling the piston rod 123 of the servo electric cylinder 122 to continue to extend, that is, Increasing the displacement of the piston rod 123 of the servo electric cylinder 122 finally causes the second protruding member 133 to abut the end limiting member 143.
  • the rotary valve 100 provided by the present invention can introduce process materials into different beds in order through different channels according to the designed cycle sequence and lead the process materials out of the bed, so as to continuously and periodically obtain high-purity product. In this way, the rotary valve 100 can continue to rotate according to the above process to ensure the continuous and continuous progress of the material distributing process.
  • the swing amplitude of the swing arm 131 the actual movement angle of the turntable 110 can be controlled.
  • the turntable 110 of the rotary valve 100 of the present invention is driven by a servo motor 121, and has a compact structure, a small footprint, environmental protection and safety, low energy consumption, low system noise, no pollution sources such as hydraulic oil, no large hydraulic station location, and light weight. It is easy to install, no additional cooling system and power station are required, and it does not pollute the environment.
  • the rotary valve 100 includes a swing arm 131, a ratchet wheel 152, a pawl 151, a first protrusion, a second protrusion, a start limiting member 142 and an end limiting member 143, the swing arm
  • the swing of 131 drives the first protrusion 132 to move toward the initial limiting member 142 so that the first protrusion 132 and the initial limiting member 142 abut against each other, and the swing arm 131 drives the second protrusion 133 toward the ending limit.
  • the position member 143 moves in the direction so that the second protruding member 133 and the end limit member 143 abut, so that the turntable 110 (ratchet wheel 152) rotates a predetermined angle, and the start limit member 142 and the end limit member 143 are opposed to the swing arm 131
  • the swing and the rotation of the turntable 110 play the role of mechanical limit, which has high reliability. It can play a role in positioning when the electronic control system fails, and can be adjusted online in real time to achieve accurate feedback of the actual movement angle of the turntable 110, ensuring that the turntable 110 and The ratchet wheel 152 can be rotated by a predetermined angle, and the movement position and angle of the pawl 151 can be calibrated in time.
  • the ratchet wheel 152 may also be provided with an angle sensor 161 to detect the rotation angle of the ratchet wheel. Since the ratchet wheel 152 is coaxially and fixedly connected with the turntable 110, the actual movement angle of the ratchet wheel 152 is equal to the actual movement angle of the turntable 110.
  • the angle sensor 161 can move synchronously with the ratchet wheel 152 and can feed back an angle signal to the control device 160.
  • the control device 160 can perform corresponding control operations according to the angle fed back by the angle sensor 161.
  • the control device 160 may be configured to control the swing amplitude of the swing arm 131 according to the angle fed back by the angle sensor 161, thereby realizing dynamic response and positioning, identifying accumulated errors and calibrating through feedback.
  • the control device can control the servo motor 121 to move to increase the displacement of the piston rod 123 of the servo electric cylinder 122, thereby increasing the swing range of the swing arm 131, thereby increasing the ratchet 152 And the actual movement angle of the turntable 110.
  • the rotary valve 100 simultaneously controls the swing amplitude of the swing arm 131 and the actual movement angle of the ratchet wheel 152 and the turntable 110 through a mechanical limit and an electronic control system.
  • the control device can control the swing amplitude of the swing arm 131 according to the angle of motion fed back by the angle sensor 161, thereby calibrating the position and angle of the pawl 151 in real time, and can adjust the rotation angle and actual position of the ratchet wheel 152 and the turntable 110 to achieve staged zero error.
  • mechanical positioning is performed in conjunction with the initial limit member 142 and the end limit member 143 to further ensure the accuracy of the positioning.
  • the control device 160 sends a command to the driving device 120 to make the driving device 120 operate.
  • the control device 160 sends a command to the driving device 120, and the output shaft of the driving device 120 moves.
  • the control device 160 sends a command to the servo motor 121 to control the servo motor 121 to rotate forward, so as to drive the piston rod 123 of the servo electric cylinder 122 to extend.
  • the control device 160 can set the extension of the piston rod 123 of the servo electric cylinder 122.
  • the control device 160 can also output a signal to the drive device 120 to control the servo motor 121 to reverse rotation and the piston rod 123 of the servo electric cylinder 122 to return.
  • the piston rod 123 of the servo electric cylinder 122 is connected with the swing arm 131, and the piston rod 123 of the servo electric cylinder 122 extends, and the swing arm 131 moves forward at this time.
  • the output shaft of the servo motor 121 rotates forward, which can drive the swing arm 131 to move forward.
  • the output shaft of the servo motor 121 reverses, which can drive the swing arm 131 to move in the reverse direction.
  • the respective structures of the servo motor 121 and the servo electric cylinder 122 can be adjusted so that the output shaft of the servo motor 121 rotates forward, and the swing arm 131 moves in the reverse direction; the output shaft of the servo motor 121 reverses, and the swing arm 131 forwards. Sports, this embodiment does not limit it.
  • the swing arm 131 is connected to the pawl 151, and the swing of the swing arm 131 can drive the pawl 151 to swing.
  • the swing direction of the pawl 151 is parallel to the swing direction of the swing arm 131.
  • the pawl 151 can abut against the teeth of the ratchet wheel 152 to push the ratchet wheel 152 to rotate.
  • the rotation of the ratchet wheel 152 drives the turntable 110 to rotate.
  • the pawl 151 moves in the forward direction
  • the ratchet wheel 152 moves in the forward direction.
  • the ratchet wheel 152 can rotate in the first direction D1 (counterclockwise).
  • the swing direction of the servo electric cylinder 122, the swing arm 131, the pawl 151, and the orientation of the teeth of the ratchet wheel 152 can be adjusted so that the ratchet wheel 152 rotates clockwise, which is not limited in the embodiment.
  • a second protrusion 133 is also provided on the swing arm 131.
  • the swing arm 131 swings forward, which can drive the second protruding member 133 to move in the direction of the stop limiting member 143.
  • An angle sensor 161 is also provided on the ratchet wheel 152, and the angle sensor 161 can detect the actual movement angle of the ratchet wheel 152 and can feedback the actual movement angle to the control device 160.
  • the actual movement angle detected and fed back by the angle sensor 161 is the angle at which the ratchet wheel 152 is driven to rotate according to the extension of the piston rod 123 of the servo electric cylinder 122 preset by the control device 160.
  • the control device 160 can control the piston rod 123 of the servo electric cylinder 122 to return, so that the pawl 151 moves in the reverse direction.
  • the “set value” is a theoretical value of an angle preset for the rotation of the ratchet wheel 152.
  • the set value may be equal to or smaller than the aforementioned predetermined angle. In this way, the angle is controlled more accurately. Based on the mechanical swing of the swing arm 131, the actual movement angle is deviated from the set value.
  • the control device 160 When the control device 160 controls the reverse movement of the pawl 151, the control device 160 will also determine whether the deviation of the actual movement angle of the rotation of the ratchet wheel 152 is greater than the error value.
  • the actual movement angle deviation is the difference between the actual movement angle and the set value. As a result, the rotation accuracy of the ratchet wheel 152 is further improved.
  • the specific judgment process is as follows:
  • the control device 160 issues a correction instruction to adjust the expansion and contraction of the output shaft of the drive device 120, so as to adjust the next movement of the ratchet wheel 152 and the pawl 151.
  • the control device 160 controls the expansion and contraction of the piston rod 123 of the servo electric cylinder 122 during the next movement to adjust the swing amplitude of the next movement of the pawl 151, thereby adjusting the actual movement angle of the next rotation of the ratchet wheel 152.
  • control device 160 can send a signal to the servo motor 121 to reduce the extension of the piston rod 123 of the servo electric cylinder 122, thereby reducing the swing amplitude of the next movement of the pawl 151, so that the next rotation of the ratchet wheel 152 is actually The movement angle is reduced, thereby compensating the angle that the ratchet wheel 152 exceeded during the last movement. In this way, multi-level adjustment of the actual rotation angle of the ratchet wheel 152 is realized, and the accuracy of the rotation of the ratchet wheel 152 is ensured.
  • the swinging direction of the swing arm, the pawl, and the direction of the teeth of the ratchet wheel can also be adjusted, so that when the piston rod of the servo electric cylinder is retracted, the pawl can push the ratchet wheel to rotate.
  • the control device sends a signal to the servo motor to reduce the retraction amount of the piston rod of the servo electric cylinder, thereby reducing the swing amplitude of the next movement of the ratchet, so that the ratchet The actual movement angle of the next rotation is reduced to compensate for the angle that the ratchet wheel exceeded during the previous movement.
  • the control device 160 controls the pawl 151 to move in the positive direction. For example, when the setting value is 60°, the error value is 3°, and the actual movement angle is 61°, the actual movement angle deviation is 1°, and the actual movement angle deviation is less than the error value.
  • the control device 160 controls the piston rod 123 of the servo electric cylinder 122 to extend to drive the ratchet wheel 152 and the pawl 151 to move forward. This cycle of action.
  • control device 160 controls the piston rod 123 of the servo electric cylinder 122 to continue to extend, so that the ratchet wheel 152 and the pawl 151 continue to move forward.
  • the second protruding member 133 continues to move toward the direction of the stop limiting member 143.
  • control device 160 controls the piston rod 123 of the servo electric cylinder 122 to extend to drive the ratchet wheel 152 and the pawl 151 positive movement.
  • the control device 160 controls the piston rod 123 of the servo electric cylinder 122 to return, the ratchet wheel 152 and the pawl 151 stop moving, and send an alarm signal to remind the operator. In this way, the second protruding member 133 and the end limiting member 143 can prevent the ratchet wheel 152 from rotating at an excessively large angle, which enhances safety and is more reliable.
  • the servo motor 121 drives the piston rod 123 of the servo electric cylinder 122 to retract, the swing arm 131 and the pawl 151 move in reverse, and the first protrusion 132 faces the initial limiter Move in the direction of 142.
  • the swing of the swing arm 131 drives the first protrusion 132 to abut the initial limit piece 142, the piston rod 123 of the servo electric cylinder 122 stops retracting, and the swing arm 131 stops swinging.
  • the control device controls the servo motor 121 to continue to run, so as to control the piston rod 123 of the servo electric cylinder 122 to continue to retract and increase the swing range of the swing arm 131 , Finally, the first protruding member 132 and the initial limiting member 142 abut against each other. As a result, it can be ensured that the swing arm 131 swings to a position where it collides with the starting limiter 142, which has high reliability and can be adjusted online in real time.
  • the mechanical limit (the second protruding member 133 and the end limit member 143, as well as the first protruding member 132 and the initial limit member 142) can act as another prevention and control. Avoid excessive rotation of the ratchet wheel 152, thereby avoiding excessive rotation of the turntable.
  • the electronic control system and the mechanical limit system work at the same time, with high reliability, real-time online adjustment, and accurate feedback of the actual movement angle of the ratchet, thereby ensuring that the turntable can rotate at a predetermined angle , And can calibrate the movement position and angle of the pawl in time.
  • the fixed plate 111 is arranged below the turntable 110.
  • the platen 111 may be configured in a substantially disc shape.
  • a valve cover 101 can also be provided above the turntable 110, and the valve cover 101 can be buckled on the fixed plate 111 and form a closed cavity.
  • the turntable 110 is rotatable relative to the fixed plate 111, thereby effectively distributing materials.
  • the fixed plate 111 is provided with a first pipe 113 and a second pipe 114, and both the first pipe 113 and the second pipe 114 are fixedly connected to the lower surface of the fixed plate 111. Both the first pipe 113 and the second pipe 114 can transport materials.
  • An intermediate pipe 116 is provided on the turntable 110, and the intermediate pipe 116 can rotate with the rotation of the turntable 110, and the intermediate pipe 116 can communicate with the first pipe 113 and the second pipe 114. In this way, the material in the first pipe 113 can enter the second pipe 114 through the intermediate pipe 116, or the material in the second pipe 114 can enter the first pipe 113 through the intermediate pipe 116, so as to facilitate the distribution of materials.
  • the valve cover 101 may be provided with a central shaft 117, a turntable 110, an intermediate pipe 116, etc., so as to ensure the sealing performance.
  • the rotary valve 100 includes a plurality of first pipes 113 and a plurality of second pipes 114, thereby forming a multi-channel material rotary valve.
  • first pipes 113 may be arranged at intervals around the circumferential direction of the turntable 110, and the intermediate pipe 116 may be communicated with different first pipes 113.
  • the second pipes 114 may also be arranged at intervals around the circumferential direction of the turntable 110, and the intermediate pipes 116 may be connected to different second pipes 114.
  • the swing arm 131 drives the pawl 151 to move, and the pawl 151 moves in the first direction D1 to push the ratchet wheel 152 to rotate, thereby driving the turntable 110 to rotate.
  • the swing arm 131 can drive the turntable 110 to rotate at different angles, so that the intermediate pipe 116 rotates at different angles. According to the actual situation, the intermediate pipe 116 can connect the preset first pipe 113 and the second pipe 114.
  • the rotary valve 100 may further include a plurality of intermediate pipes 116, which can rotate at different angles with the turntable 110, so that different intermediate pipes 116 are respectively connected to different first pipes 113 and second pipes 114.
  • the inlet end and the outlet end of the different intermediate pipes 116 can be respectively communicated with the different first pipe 113 and the second pipe 114, and the connected pipes can be switched through the turntable 110 to rotate.
  • the central shaft 117 (turntable 110) rotates to different positions, the materials from different first pipes 113 can communicate with different second pipes 114 through different intermediate pipes 116, or from different second pipes 114.
  • the materials can be respectively communicated with different first pipes 113 through different intermediate pipes 116.
  • the sealing plate 112 is arranged between the turntable 110 and the fixed plate 111 and is connected to the turntable 110.
  • the sealing plate 112 may be fixedly connected to the lower surface of the turntable 110 to rotate with the rotation of the turntable 110, so as to achieve a sealed contact between the turntable 110 and the fixed plate 111.
  • the sealing plate 112 rotates with the turntable 110, and the first pipe 113 and the second pipe 114 that are not connected can be separated by the sealing plate 112.
  • the chemical process materials can be input into the intermediate pipe 116 through the second pipe 114, and then into the first pipe 113 through the intermediate pipe 116, so as to be transported to a designated device.
  • the flow direction of the material in the rotary valve 100 is bidirectional.
  • the material can also be input into the intermediate pipe 116 through the first pipe 113, and then into the second pipe 114 through the intermediate pipe 116, and finally discharged through the second pipe 114.
  • the plurality of first pipes include a first branch pipe and a second branch pipe
  • the plurality of intermediate pipes include a third branch pipe and a fourth branch pipe
  • the plurality of second pipes include a fifth branch pipe and a sixth branch pipe.
  • a sub-pipe can be communicated with the fifth sub-pipe through the third sub-pipe
  • the second sub-pipe can be connected with the sixth sub-pipe through the fourth sub-pipe.
  • the first sub-pipe is communicated with the fifth sub-pipe through the third sub-pipe
  • the second sub-pipe and the sixth sub-pipe may be separated by the sealing plate and not communicated.
  • the rotary valve 100 provided by the present invention can realize the input and output of chemical materials according to a certain distribution method.
  • the electronic control system can provide power.
  • the central shaft 117 is driven to rotate through the ratchet wheel 152 and pawl 151 mechanism, and the central shaft 117 drives the turntable 110 to rotate step by step, so as to realize the communication and switching between the various material pipelines, and the actual performance of the ratchet wheel 152 can be adjusted and calibrated.
  • the angle of motion effectively eliminates the instantaneous error and error accumulation generated by the ratchet wheel 152 during rotation, and ensures the continuous operation of the turntable 110, thereby more accurately introducing the process materials into and out of the bed in the adsorption valve, improving the simulation movement
  • the processing capacity of the bed process system improves production efficiency and reduces production costs.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

Soupape rotative (100) comprenant un disque rotatif (110), un bras oscillant (131), une roue à rochet (152), un cliquet (151), un premier élément en saillie (132), un second élément en saillie (133), un élément de limitation de début (142), et un élément de limitation de fin (143). L'élément de limitation de début et l'élément de limitation de fin sont tous deux des composants séparés de la roue à rochet, et sont respectivement situés de part et d'autre du bras oscillant. Le bras oscillant oscille pour amener le premier élément en saillie à se déplacer vers l'élément de limitation de début, de telle sorte que le premier élément en saillie vient en butée contre l'élément de limitation de début. Le bras oscillant oscille pour amener le second élément en saillie à se déplacer vers l'élément de limitation de fin, de telle sorte que le second élément en saillie vient en butée contre l'élément de limitation de fin, et ainsi le disque rotatif tourne à un angle prédéterminé. La soupape rotative a une fiabilité élevée, et peut être réglée en ligne en temps réel en vue de transmettre avec précision l'angle de déplacement réel du disque rotatif et de garantir que le disque rotatif peut tourner à l'angle prédéterminé, et la position ainsi que l'angle de déplacement du cliquet peuvent être étalonnés en temps opportun. L'invention concerne également un procédé de commande pour la soupape rotative.
PCT/CN2020/093258 2020-05-29 2020-05-29 Soupape rotative et procédé de commande WO2021237674A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080006120.6A CN114072605A (zh) 2020-05-29 2020-05-29 一种回转阀和控制方法
PCT/CN2020/093258 WO2021237674A1 (fr) 2020-05-29 2020-05-29 Soupape rotative et procédé de commande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/093258 WO2021237674A1 (fr) 2020-05-29 2020-05-29 Soupape rotative et procédé de commande

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WO2021237674A1 true WO2021237674A1 (fr) 2021-12-02

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