Intelligent fuel gas conveying and adjusting device in depressurization operation process

Abstract

The invention belongs to the technical field of fuel gas conveying, and particularly relates to an intelligent fuel gas conveying adjusting device in the depressurization operation process, the intelligent fuel gas conveying adjusting device comprises a charging assembly, a driving assembly, a valve body assembly and a valve element assembly, the valve body assembly comprises a circulation pipe, and natural gas circulates in the circulation pipe; the two groups of first sliding parts are movably connected to the outer surface of the runner pipe and are used for adjusting the adsorption position of scrap iron in the runner pipe; the valve element assembly comprises a center shaft, and the moving distance of the first sliding part correspondingly changes along with the rotating angle of the center shaft. The fan-shaped plates are symmetrically and fixedly connected to the two sides of the center shaft, and the center shaft drives the fan-shaped plates to rotate and adjusts the flow of the natural gas in the runner pipe; the intelligent fuel gas conveying and adjusting device is easy to operate, safe and stable, green and environment-friendly energy is further used by means of photovoltaic power generation, meanwhile, all the parts are modularly arranged, real-time monitoring, regulation and control are facilitated, and operation reliability is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas transportation, and in particular to an intelligent gas transportation regulating device during a pressure reduction operation. Background Art

[0002] When performing joint operations on gas pipe networks, the most commonly used non-stop joint connection method is the electric fusion bypass saddle connection method. Currently, this connection operation method has strict requirements on pressure: the main pipeline pressure must be reduced to below 0.1Mpa to ensure that the construction environment meets the requirements of the gas pressure and gas safety operating procedures.

[0003] Publication No. CN116697132A relates to the technical field related to control valves, specifically a gas delivery control valve with a flow monitoring function. The gas delivery control valve with a flow monitoring function includes a valve body shell, an air intake pipe, a flow monitoring chamber, a valve chamber and an exhaust pipe. A first-level wiring groove is opened on the top surface of the valve body shell; the delivery equipment has low delivery efficiency and poor delivery effect.

[0004] Publication No. CN109838564B relates to the field of sealing technology and provides a dual-seal, high-temperature sealing valve. The valve comprises a valve body, a first valve core, a second valve core, a valve stem assembly, and an opening and closing mechanism. The valve body has an air inlet, and the inner wall of the valve body is provided with a first annular conical plate and a second annular conical plate. This conveying device is difficult to operate and has low precision.

[0005] When gas continuously flows inside the natural gas pipeline, the gas pressure inside the downstream collection station can be precisely adjusted with the help of an intelligent gas transmission and regulation device. After the gas inside the natural gas pipeline enters the transmission and regulation device for regulation and blocking, it will continuously impact its inner wall and cause damage to its internal structure, thereby reducing the installation strength of the transmission device and the stability of the gas flow.

[0006] Moreover, when the intelligent gas delivery and regulating device is blocked and closed, if the soft sealing part of the delivery and regulating device is impacted by the gas and internal impurities for a long time and is damaged, the sealing and blocking effect of the gas inside the delivery and regulating device will be reduced accordingly. At the same time, the existing technology mostly adjusts the soft sealing part inside the delivery and regulating device, thereby reducing the regulation efficiency and regulation effect.

[0007] Moreover, if the delivery and regulating device remains at the same opening degree for a long time, iron filings and the like in the fuel gas will easily accumulate on the inner wall of the delivery and regulating device. As the iron filings and the like continue to accumulate, not only will the pressure value of the downstream collection station be reduced, but the inner wall of the delivery and regulating device will also be corroded and broken, thereby reducing the durability and stability of the delivery and regulating device. Summary of the Invention

[0008] In response to the above problems, the present invention provides an intelligent gas delivery and regulation device during pressure reduction operation, comprising: a charging assembly, a drive assembly, a valve body assembly, and a valve core assembly: The valve body assembly includes a flow pipe, and natural gas flows inside the flow pipe; Two sets of first sliding parts, each of which is movably connected to the outer surface of the flow tube; The valve core assembly includes a central shaft, and the movement distance of the first sliding portion changes accordingly with the rotation angle of the central shaft; Two sets of fan-shaped plates, the fan-shaped plates are symmetrically fixedly connected on both sides of the central shaft, and the central shaft drives the fan-shaped plates to rotate and adjust the natural gas flow inside the flow pipe; The elastic sealing part is movably connected to the side of the sector plate away from the central axis and is used to achieve soft sealing with the inner wall of the circulation pipe.

[0009] Preferably, the driving component includes a driving motor, the bottom output end of the driving motor is fixedly connected to the top of the central shaft, the driving motor drives the central shaft to rotate forward and reverse at a preset angle, the input end of the driving motor is electrically connected to the end of the lead away from the bracket, and a scale is provided on the top of the driving motor, and the scale detects the rotation angle of the central shaft in real time.

[0010] Preferably, a connecting plate is provided at the bottom of the driving motor, and a protective sleeve is provided at the bottom of the connecting plate. The bottom of the protective sleeve is fixedly connected to the top of the circulation tube, and the central axis is located inside the protective sleeve. The protective sleeve wraps and protects the outer surface of the central axis. The outer surface of the protective sleeve is provided with two groups of fan-shaped grooves, and the opening angle of the fan-shaped grooves is greater than 90 degrees.

[0011] Preferably, a rotating rod is provided on the outer surface of the central shaft and located inside the fan-shaped groove, and the rotating rod rotates synchronously with the rotation of the central shaft. A bottom rod is provided at the bottom of the rotating rod, and the outer surface of the bottom rod is rotatably connected to a first ring sleeve. A top rod is provided on the top of the first sliding part, and the outer surface of the top rod is movably connected to a second ring sleeve. A transmission part is movably connected between the first ring sleeve and the second ring sleeve, and the transmission part drives the first sliding part to move laterally along the outer surface of the circulation tube.

[0012] Preferably, the first sliding part is a magnetic arc plate, which is movably connected to the outer surface of the circulation tube. The magnetic arc plate is magnetic and exerts magnetic attraction on the iron filings inside the circulation tube. Two flanges are symmetrically provided on both sides of the circulation tube, and adjustment plates are provided on the opposite sides of the two magnetic arc plates. The working surface of the adjustment plate is in contact with the outer surface of the circulation tube.

[0013] Preferably, a plurality of limit grooves are evenly provided on the outer surface of the circulation tube, the internal sealing sliding connection of the limit groove is a limit block, one side of the limit block is fixedly connected to the inner wall of the magnetic arc plate, and a circular groove is provided on the inner bottom of the circulation tube, and the bottom of the central axis passes through the circulation tube and is sealed and rotatably connected to the inner wall of the circular groove.

[0014] Preferably, a side groove is provided on the side of the fan-shaped plate away from the central axis, and a plurality of elastic parts are evenly fixedly connected to the inner wall of the side groove, and the elastic part has elasticity. The other end of the elastic part is fixedly connected to the second sliding part, and the other end of the second sliding part is fixedly connected to the side wall of the elastic sealing part. The outer surface of the second sliding part is sealed and slidably connected to the inner wall of the side groove, and two blocking blocks are symmetrically fixedly connected to the end of the inner wall of the side groove, and the side wall of the blocking block is sealed and slidably connected to the outer surface of the elastic sealing part.

[0015] Preferably, the size of the sector plate is smaller than the size of the inner wall of the circulation tube, the elastic sealing portion is an arc-shaped structure and has elasticity, and the sum of the sizes of the sector plate and the elastic sealing portion matches the inner wall of the circulation tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the intelligent gas transmission and regulation device is simple to operate, safe and stable, and further realizes the use of green and environmentally friendly energy with the help of photovoltaic power generation. At the same time, each part is modularly configured, which is convenient for real-time monitoring and regulation, and has high operational reliability.

[0017] 2. In the present invention, the intelligent gas delivery and regulating device ensures that the magnetic arc plate adsorbs the iron filings and the like inside the flow tube at the intersection of the end of the fan-shaped plate and the inner wall of the flow tube, further realizing the anti-impact blocking effect of the iron filings and the like on the flow of gas, thereby turning harm into benefit and improving strength.

[0018] 3. In the present invention, the intelligent gas delivery and adjustment device adjusts the position of the elastic sealing part accordingly when the sector plate rotates to different angles, thereby ensuring the structural stability of the elastic sealing part and correspondingly improving the durability and sealing effect of the subsequent soft seal between the elastic sealing part and the inner wall of the flow pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the rear perspective structure of the charging assembly of the present invention; Figure 4 This is a schematic diagram of the exploded three-dimensional structure of the charging assembly of the present invention; Figure 5It is a schematic diagram of the three-dimensional structure of the valve body assembly and the valve core assembly of the present invention; Figure 6 for Figure 5 A in the middle is an enlarged schematic diagram; Figure 7 for Figure 5 A schematic diagram of the internal three-dimensional structure of the valve body assembly and the valve core assembly from the right side; Figure 8 for Figure 7 The enlarged schematic diagram of point B in the middle; Figure 9 for Figure 5 A schematic diagram of the internal three-dimensional structure of the valve body assembly and the valve core assembly from the front; Figure 10 It is a partially exploded three-dimensional structural schematic diagram of the valve body assembly of the present invention; Figure 11 It is a schematic diagram of the exploded three-dimensional structure of the valve core assembly of the present invention.

[0020] In the figure: 1. Charging assembly; 101. Bracket; 102. Mounting frame; 103. Battery; 104. Charging controller; 105. Photovoltaic frame; 106. Solar panel; 107. Power cord; 108. Connecting rod; 109. Control panel; 110. Emergency manual switch; 111. Power switch; 112. Lead wire; 2. Drive assembly; 201. Drive motor; 202. Scale; 203. Connecting plate; 204. Protective cover; 205. Sector groove; 3. Valve body assembly; 3 01. Circulation pipe; 302. Flange; 303. Magnetic arc plate; 304. Adjustment plate; 305. Rotating rod; 306. Bottom rod; 307. Transmission part; 308. Top rod; 309. First ring sleeve; 310. Second ring sleeve; 311. Limit groove; 312. Limit block; 313. Circular groove; 4. Valve core assembly; 401. Center axis; 402. Fan-shaped plate; 403. Side groove; 404. Stop block; 405. Elastic part; 406. Metal slider; 407. Elastic sealing part. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1 - Figure 11As shown, an intelligent gas transmission and regulation device during a pressure reduction operation includes: a charging component 1, a driving component 2, a valve body component 3 and a valve core component 4, wherein the charging component 1 mainly provides electrical energy for the driving component 2, and the driving component 2 drives the valve core component 4 to rotate inside the valve body component 3, thereby realizing precise regulation of the flow rate of natural gas inside the valve body component 3. At the same time, the natural gas pipeline downstream includes multiple acquisition slave stations, which also include the above-mentioned structures, and the acquisition slave stations also include pressure sensors. The acquisition slave stations collect 4-20mA signals from the pressure sensors inside the natural gas pipeline, and transmit the collected data to the intelligent gas transmission and regulation device via LORA wireless mode, and adjust the amount of natural gas inside the natural gas pipeline in real time according to the intelligent gas transmission and regulation device, so as to ensure the stability of natural gas transportation and the safety of subsequent joint operations with the gas pipeline network.

[0023] The charging assembly 1 includes a bracket 101, which is fixed around the valve body assembly 3. A mounting frame 102 is provided above the bracket 101, and a photovoltaic frame 105 is provided above the mounting frame 102. The mounting frame 102 supports and fixes the photovoltaic frame 105. A plurality of solar panels 106 are evenly arranged inside the photovoltaic frame 105. The solar panels 106 generate photovoltaic power, and the plurality of solar panels 106 are evenly distributed. This distribution method improves the photovoltaic power generation efficiency of the solar panels 106. A charging controller 104 is provided inside the mounting frame 102 and below the photovoltaic frame 105. The charging controller 104 controls the generation of power by the solar panels 106. The generated electric energy is regulated to ensure that the electric energy generated by the photovoltaic power generation of the solar panel 106 can be reasonably and fully used. A battery 103 is provided under the charging controller 104. The battery 103 stores the electric energy generated by the solar panel 106. During the day, part of the electric energy generated by the photovoltaic power generation of the solar panel 106 drives the drive component 2 to work, and the other part is stored in the battery 103 for subsequent use. At night, the solar panel 106 cannot generate photovoltaic power, so the electric energy inside the battery 103 drives the drive component 2 to work normally, further improving the stability and efficiency of the subsequent operation of the drive component 2.

[0024] A lead 112 is provided on one side of the bracket 101, and the lead 112 transmits electrical energy to the drive assembly 2. A power line 107 is provided at the output end of the battery 103. The power line 107 is provided to realize the transmission of photovoltaic electricity generated by the solar panel 106. A connecting rod 108 is provided on one side of the bracket 101, and a control panel 109 is provided on the other side of the connecting rod 108. The control panel 109 controls data of each electrical component, so the operator can only operate on the control panel 109 to realize precise control of the amount of gas inside the subsequent natural gas pipeline. An emergency manual switch 110 is provided on one side of the control panel 109. When an emergency occurs, pressing the emergency manual switch 110 can quickly shut off the gas inside the valve body assembly 3. A power switch 111 is provided on the other side of the control panel 109. The power switch 111 controls the power supply status of each component. The power line 107 passes through the bracket 101 and is connected to the lead 112. Then the power line 107 and the lead 112 cooperate to realize the transmission of electrical energy.

[0025] The drive assembly 2 includes a drive motor 201. The bottom output end of the drive motor 201 is fixedly connected to the top of the central shaft 401. The drive motor 201 drives the central shaft 401 to rotate forward and reverse at a preset angle, and the drive motor 201 itself has a locking function. Therefore, the drive motor 201 can accurately adjust the rotation angle of the central shaft 401, thereby correspondingly adjusting the amount of gas inside the circulation tube 301. The input end of the drive motor 201 is electrically connected to the end of the lead 112 away from the bracket 101. The lead 112 provides the required electrical energy to the drive motor 201. A scale 202 is provided on the top of the drive motor 201. The scale 202 detects the rotation angle of the central shaft 401 in real time. With the help of the scale 202, it is convenient to improve the accuracy during installation and adjustment.

[0026] A connecting disk 203 is provided at the bottom of the driving motor 201, and a protective sleeve 204 is provided at the bottom of the connecting disk 203. The bottom of the protective sleeve 204 is fixedly connected to the top of the circulation tube 301. The connecting disk 203 connects and fixes the driving motor 201 and the protective sleeve 204, and the protective sleeve 204 can also install and fix the circulation tube 301. The central axis 401 is located inside the protective sleeve 204. The protective sleeve 204 wraps and protects the outer surface of the central axis 401 to prevent external impurities from affecting the rotation accuracy of the central axis 401. The outer surface of the protective sleeve 204 is provided with two groups of fan-shaped grooves 205. The opening angle of the fan-shaped grooves 205 is greater than 90 degrees. The setting of the fan-shaped grooves 205 facilitates the subsequent precise adjustment of the movement amount of the first sliding part.

[0027] The valve body assembly 3 includes a circulation pipe 301, and natural gas circulates inside the circulation pipe 301. The natural gas pipelines are spliced ​​at both ends of the circulation pipe 301, so as to achieve precise adjustment of the internal gas pressure of the downstream collection station. At the same time, the valve body assembly 3 also includes two sets of first sliding parts, and the first sliding parts are movably connected to the outer surface of the circulation pipe 301, which are used to adjust the adsorption position of iron chips inside the circulation pipe 301. Therefore, when the moving position of the first sliding part changes, the position of the iron chips adsorbed on the inner wall of the circulation pipe 301 changes accordingly, thereby achieving an impact protection effect on the inner wall of the circulation pipe 301.

[0028] Specifically, the first sliding part is a magnetic arc plate 303, and two groups of magnetic arc plates 303 are movably connected to the outer surface of the circulation tube 301. The magnetic arc plate 303 is magnetic and exerts magnetic attraction on the iron filings inside the circulation tube 301. The magnetic arc plate 303 uses its own magnetic attraction to absorb the iron filings flowing inside the circulation tube 301, thereby avoiding the problem of iron filings and the like continuously impacting the inner wall of the circulation tube 301 with the flow of gas and causing damage or blockage.

[0029] The outer surface of the central shaft 401 is provided with a rotating rod 305 located inside the fan-shaped groove 205. The rotating rod 305 rotates synchronously with the rotation of the central shaft 401. Therefore, when the central shaft 401 rotates and adjusts the amount of gas flowing inside the circulation pipe 301, the central shaft 401 synchronously drives the rotating rod 305 to rotate. The bottom of the rotating rod 305 is provided with a bottom rod 306. The outer surface of the bottom rod 306 is rotatably connected to the first ring sleeve 309. The rotating rod 305 rotates through the bottom rod 306 to synchronously drive the position of the first ring sleeve 309 to change. The top of the first sliding part is provided with a top rod 308, that is, the top of the magnetic arc plate 303 is provided with a The top rod 308 has a second ring sleeve 310 movably connected to its outer surface, and a transmission part 307 is movably connected between the first ring sleeve 309 and the second ring sleeve 310. The transmission part 307 drives the magnetic arc plate 303 to move laterally along the outer surface of the circulation tube 301. The transmission part 307 is a cross bar with a fixed size in this embodiment. The first ring sleeve 309 drives the second ring sleeve 310 to move through the transmission part 307, and the second ring sleeve 310 drives the magnetic arc plate 303 to move laterally on the outer surface of the circulation tube 301 through the top rod 308, thereby ensuring the accuracy of the movement of the magnetic arc plate 303 and the synchronization of the rotation angle of the central axis 401.

[0030] Therefore, on this basis, the transmission part 307 can be an electric telescopic rod, and the fixed end on one side of the transmission part 307 is movably connected to the bottom rod 306 through the first ring sleeve 309, and the output end on the other side of the transmission part 307 is movably connected to the top rod 308 through the second ring sleeve 310. Therefore, when the angle of the fan plate 402 inside the circulation tube 301 does not change, it can be started through the output end of the transmission part 307 and drive the magnetic arc plate 303 to move on the outer surface of the circulation tube 301, thereby changing the adsorption position of the magnetic arc plate 303 on the iron filings inside the circulation tube 301.

[0031] Two flanges 302 are symmetrically provided on both sides of the circulation pipe 301, and the flanges 302 threadedly connect the two sides of the natural gas pipeline. Adjustment plates 304 are provided on the opposite sides of the two magnetic arc plates 303. The working surface of the adjustment plate 304 is in contact with the outer surface of the circulation pipe 301. Therefore, when the magnetic arc plate 303 moves horizontally on the outer surface of the circulation pipe 301, the magnetic arc plate 303 synchronously drives the adjustment plate 304 to move, and the adjustment plate 304 has the effect of adjusting and correcting the movement of the magnetic arc plate 303.

[0032] The outer surface of the circulation tube 301 is evenly provided with a plurality of limit grooves 311, and the internal sealing sliding connection of the limit grooves 311 is the limit block 312, and one side of the limit block 312 is fixedly connected to the inner wall of the magnetic arc plate 303. With the help of the limiting process of the limit grooves 311 and the limit block 312, the stability and fit of the magnetic arc plate 303 in the lateral movement of the outer surface of the circulation tube 301 are further improved. A circular groove 313 is provided at the inner bottom of the circulation tube 301, and the bottom of the central shaft 401 passes through the circulation tube 301 and is sealed and rotatably connected to the inner wall of the circular groove 313. The circular groove 313 and the interior of the circulation tube 301 are improved by sealed bearings and the like to improve the sealing and efficiency of the rotation of the central shaft 401.

[0033] The valve core assembly 4 includes a central axis 401, and the moving distance of the magnetic arc plate 303 changes with the rotation angle of the central axis 401. It also includes two groups of fan-shaped plates 402. The fan-shaped plates 402 are symmetrically fixedly connected to both sides of the central axis 401 and are located inside the circulation tube 301. Therefore, when the central axis 401 rotates, it can drive the two groups of fan-shaped plates 402 to rotate. The central axis 401 drives the fan-shaped plates 402 to rotate and adjust the natural gas flow inside the circulation tube 301. It also includes an elastic sealing part 407. The material and structure of the elastic sealing part 407 are rubber strips. The elastic sealing part 407 is movably connected to the side of the fan plate 402 away from the central axis 401. The elastic sealing part 407 is used to achieve a soft seal with the inner wall of the circulation tube 301, further improving the sealing and blocking effect of the circulation tube 301.

[0034] The fan-shaped plate 402 is provided with a side groove 403 on one side away from the central axis 401. The inner wall of the side groove 403 is evenly fixedly connected with a plurality of elastic parts 405. The elastic part 405 can be a structure such as an elastic block, which has elasticity. The other end of the elastic part 405 is fixedly connected with a second sliding part. The other end of the second sliding part is fixedly connected to the side wall of the elastic sealing part 407. The outer surface of the second sliding part is sealed and slidably connected with the inner wall of the side groove 403. Therefore, the second sliding part synchronously drives the elastic sealing part when the sealing movement inside the side groove 403. The sealing part 407 moves synchronously, and the second sliding part is a metal slider 406. The metal slider 406 has ferromagnetism, that is, the metal slider 406 can be magnetically attracted by the magnetic arc plate 303, that is, one end of the metal slider 406 is fixedly connected to the ends of the multiple elastic parts 405, and the other end of the metal slider 406 is fixedly connected to the side wall of the elastic sealing part 407. The outer surface of the metal slider 406 is sealed and slidably connected to the inner wall of the side groove 403. The setting of the side groove 403 realizes the limiting and correction effect of the sealed sliding of the metal slider 406.

[0035] The metal slider 406 is movably connected to the side of the sector plate 402 away from the central axis 401. The metal slider 406 moves back and forth laterally on the side of the sector plate 402. There is a magnetic attraction between the metal slider 406 and the magnetic arc plate 303 and the metal slider adjusts its position according to the movement of the magnetic arc plate 303. When the central axis 401 rotates and drives the sector plate 402 to rotate, the sector plate 402 drives the metal slider 406 to rotate. At the same time, when the central axis 401 rotates, it synchronously drives the magnetic arc plate 303 to move laterally on the outer surface of the circulation tube 301. The magnetic arc plate 303 exerts pressure on the metal slider. The magnetic attraction force of 406 decreases, and the metal slider 406 drives the elastic sealing part 407 to move along the side groove 403 toward the end close to the center axis 401 under the elastic force of the elastic part 405. When the center axis 401 rotates in the opposite direction, the center axis 401 drives the magnetic arc plate 303 to move in the opposite direction and the metal slider 406 to rotate in the opposite direction. The distance between the magnetic arc plate 303 and the metal slider 406 decreases and the magnetic attraction force on the metal slider 406 increases. The metal slider 406 pulls the elastic part 405 and simultaneously drives the elastic sealing part 407 to move toward the end close to the magnetic arc plate 303.

[0036] The elastic sealing portion 407 is an arc-shaped structure and has elasticity. The sector plate 402 cooperates with the elastic sealing portion 407 to achieve a soft seal on the inside of the circulation tube 301, avoiding the loss of the structure of the sector plate 402 and the inner wall of the circulation tube 301 caused by the hard seal. The size of the sector plate 402 is smaller than the inner wall size of the circulation tube 301, and the sum of the sizes of the sector plate 402 and the elastic sealing portion 407 matches the inner wall of the circulation tube 301. With the help of the elasticity of the elastic sealing portion 407 itself, when the axis of the sector plate 402 and the circulation tube 301 is in a vertical state, the elastic sealing portion 407 can The elasticity is softly sealed with the inner wall of the circulation tube 301, further improving the sealing effect and sealing quality. Two blocking blocks 404 are symmetrically fixedly connected to the end of the inner wall of the side groove 403. The side wall of the blocking block 404 is sealed and slidably connected to the outer surface of the elastic sealing part 407. The position of the blocking block 404 remains unchanged and cooperates with the elastic sealing part 407 to achieve the sealing of the end of the side groove 403. The blocking block 404 can block the metal slider 406 when it moves to the maximum distance inside the side groove 403, thereby preventing the metal slider 406 from driving the elastic sealing part 407 to slide away from the side groove 403 and affecting the subsequent soft sealing quality.

[0037] When gas continuously flows inside the natural gas pipeline, the gas pressure inside the downstream collection station can be accurately adjusted with the help of the intelligent gas transmission and regulation device. After the gas inside the circulation pipe 301 is blocked by the fan-shaped plate 402, it will continuously impact the inner wall of the circulation pipe 301 and the outer surface of the fan-shaped plate 402 and cause damage to its structure, thereby reducing the installation strength of the circulation pipe 301 and the fan-shaped plate 402 and the stability of the gas flow. When the intelligent gas transmission and regulation device is closed, the elastic sealing part 407 is squeezed with the inner wall of the circulation pipe 301 to achieve a soft seal. The elastic sealing part 407 will be damaged by friction and compression with the inner wall of the circulation pipe 301. At the same time, the soft sealing quality of the elastic sealing part 407 is mostly adjusted inside the circulation pipe 301, thereby reducing the adjustment quality and sealing effect. At the same time, when the central shaft 401 drives the fan-shaped plate 402 to rotate and is in the open state, the gas impacts the elastic sealing part 407 for a long time and causes damage to its own structure, thereby reducing the sealing and blocking effect of the gas inside the circulation pipe 301.

[0038] In order to solve the above problems, during actual use of the intelligent gas transmission and regulation device in the pressure reduction operation process, the flanges 302 on both sides of the flow pipe 301 are threadedly fixedly connected to the natural gas pipeline in accordance with the above requirements, and in the initial state, the driving motor 201 drives the central shaft 401 to the initial state, and the central shaft 401 drives the fan plates 402 on both sides to the initial state and perpendicular to the axis of the flow pipe 301. The fan plates 402 cooperate with the elastic sealing part 407 to seal and block the inner wall of the flow pipe 301, so that the gas inside the natural gas pipeline cannot flow backward along the flow pipe 301. The position of the central axis 401 is accurately detected by the scale 202, and the solar panel 106 generates electricity and stores part of the electricity in the battery 103. At the same time, subsequent various collection slave stations are installed, and the natural gas pressure inside the downstream natural gas pipeline is detected in real time with the help of the pressure sensor inside the collection slave station, further improving the pressure requirement required for subsequent connection operation with the gas pipeline network.

[0039] When the installation is completed and gas needs to be circulated, the control panel 109 controls the drive motor 201 to start forward rotation, and the output end of the drive motor 201 drives the central shaft 401 to rotate forward, and the central shaft 401 drives the two sets of fan plates 402 inside the circulation pipe 301 to rotate forward. The fan plates 402 are free from the blockage inside the circulation pipe 301, and the gas inside the natural gas pipeline is continuously transported backward along the circulation pipe 301. When the fan plates 402 reach a certain angle and are staggered and tilted with the axis of the circulation pipe 301, the gas collides with the side wall of the fan plate 402 during the circulation process, and under the guidance of the fan plate 402, it continuously reaches the intersection of the fan plate 402 and the inner wall of the circulation pipe 301, and then continuously impacts the inner wall of the circulation pipe 301 and causes a certain degree of turbulence. After the gas passes through the intersection of the fan plate 402 and the circulation pipe 301, it continuously flows backward and realizes gas transportation.

[0040] At the same time, when the central axis 401 rotates, the rotating rod 305 is driven to rotate synchronously, and the rotating rod 305 drives the transmission part 307 to move through the bottom rod 306 and the first ring sleeve 309 below. The other end of the transmission part 307 drives the magnetic arc plate 303 to move synchronously on the surface of the circulation tube 301 through the second ring sleeve 310 and the top rod 308. The limiting effect of the limit block 312 and the limit groove 311 ensures that the magnetic arc plate 303 can only move laterally on the outer surface of the circulation tube 301, and the moving position of the magnetic arc plate 303 matches the corresponding rotation position of the end of the fan-shaped plate 402. During the movement of the magnetic arc plate 303, the adjustment plate 304 is synchronously driven to move. The adjustment plate 304 adjusts and corrects the movement of the magnetic arc plate 303 to avoid deviation of the magnetic arc plate 303 during movement, affecting the movement accuracy.

[0041] When the magnetic arc plate 303 moves to a position matching the end of the fan-shaped plate 402, the magnetic arc plate 303 is facing the intersection of the inner wall of the circulation tube 301 and the end of the fan-shaped plate 402. During the continuous flow of gas in the circulation tube 301, the iron filings remaining in the gas continuously adhere to the inner wall of the circulation tube 301 under the action of the magnetic attraction of the magnetic arc plate 303 to form a protective layer. This protective layer effectively resists and protects impurities remaining in the subsequent gas, such as gaseous impurities: hydrogen sulfide and carbon dioxide, etc.; solid impurities: sand, rust and corrosion products, etc.; liquid impurities: free water, liquid hydrocarbons and condensate, etc., to prevent these impurities from impacting the confluence of the inner wall of the circulation tube 301 and the end of the fan-shaped plate 402 for a long time and causing damage to its own structure, such as impact wear, cavitation and flash evaporation, and chemical corrosion of the circulation tube 301 and the fan-shaped plate 402, further improving the durability and stability of the circulation tube 301 and the fan-shaped plate 402.

[0042] And since the magnetic attraction of the magnetic arc plate 303 is constant, when the magnetic arc plate 303 applies magnetic attraction to the iron filings inside the circulation tube 301 and causes some of the iron filings to be adsorbed on the inner wall of the circulation tube 301 to form a protective layer, the thickness of the iron filings is only related to the magnetic attraction of the magnetic arc plate 303, that is, the greater the magnetic attraction of the magnetic arc plate 303, the thicker the protective layer formed by the iron filings on the inner wall of the circulation tube 301. However, the excess iron filings outside the protective layer will not be adsorbed on the inner wall of the circulation tube 301 and accumulate due to the increased distance from the magnetic arc plate 303 and the presence of a protective layer between the two. Instead, these iron filings can only be transmitted backward with the continuous circulation of the gas inside the circulation tube 301 and be filtered and recovered in the subsequent gas transmission and regulation device. Therefore, the protective layer formed by the magnetic attraction applied by the magnetic arc plate 303 to the iron filings on the inner wall of the circulation tube 301 can only block and protect against the impact of subsequent impurities, etc., but will not affect the normal circulation of the gas inside the circulation tube 301.

[0043] In particular, under the action of the magnetic attraction of the magnetic arc plate 303, the thickness of the protective layer adsorbed on the inner wall of the circulation tube 301 is consistent, and excess iron filings and the like will be continuously transmitted backward with the gas and will not affect the flow of the gas. At the same time, with the help of the pressure sensor, the pressure value of the gas circulating at this position is detected by the pressure sensor inside the slave station, and the rotation angle of the fan plate 402 driven by the central axis 401 is adjusted accordingly, thereby adjusting the amount of gas circulating inside the circulation tube 301, further ensuring the stability and continuity of the gas circulation inside the circulation tube 301.

[0044] At the same time, as the central axis 401 continues to drive the fan plate 402 to rotate and the magnetic arc plate 303 to move, the distance between the fan plate 402 and the inner wall of the circulation tube 301 continues to increase, and the magnetic arc plate 303 is always on the outer surface of the circulation tube 301, then the distance between the magnetic arc plate 303 and the fan plate 402 increases, and the magnetic attraction of the magnetic arc plate 303 to the metal slider 406 correspondingly decreases, and the metal slider 406 drives the elastic sealing part 407 to move closer to the end of the central axis 401 under the elastic action of multiple elastic parts 405, then the elastic sealing part 407 continuously moves to the inside of the side groove 403, effectively avoiding the long-term impact corrosion of the gas inside the circulation tube 301 on the elastic sealing part 407, etc., which reduces its own elasticity and integrity, thereby ensuring the subsequent sealing effect between the elastic sealing part 407 and the inner wall of the circulation tube 301.

[0045] When used for a long time, the impact surface of the inner wall of the circulation tube 301 is prone to produce small pits under the continuous flow and collision of gas and internal impurities. The pits will affect the normal transportation of gas inside the circulation tube 301. Since the magnetic arc plate 303 has magnetic force, the magnetic arc plate 303 will exert magnetic attraction on the iron filings inside the circulation tube 301 and make them adhere to the inner wall of the circulation tube 301. If there is a pit on the inner wall of the circulation tube 301, the distance between the magnetic arc plate 303 and the iron filings inside the pit will be closer and the magnetic attraction will be greater. Therefore, the iron filings inside the circulation tube 301 are more easily adsorbed inside the pit and resist and block the gas and impurities flowing inside the circulation tube 301, thereby further realizing temporary filling and protection of the inner wall of the circulation tube 301.

[0046] When the flow tube 301 needs to be blocked and no gas is allowed to pass through, the control panel 109 controls the driving motor 201 to start in reverse and drive the central shaft 401 to rotate in reverse. The central shaft 401 drives the sector plates 402 on both sides to rotate in reverse. When the central shaft 401 rotates in reverse, the magnetic arc plate 303 is synchronously driven to move in the opposite direction on the outer surface of the flow tube 301. The distance between the magnetic arc plate 303 and the end of the sector plate 402 is continuously reduced, and the magnetic attraction force exerted by the magnetic arc plate 303 on the metal slider 406 is continuously increased. 06 stretches the elastic block 405 and drives the elastic sealing part 407 to move continuously toward the end away from the central axis 401. The end of the elastic sealing part 407 extends out of the side groove 403 and contacts the inner wall of the circulation tube 301 and continuously rotates and scrapes it to avoid impurities adhering to the inner wall of the circulation tube 301 and reducing the quality of the soft seal. When the fan-shaped plate 402 returns to a state perpendicular to the axis of the circulation tube 301, the elastic sealing part 407 stretches the elastic block 405 along the side groove 403 to move toward the end away from the central axis 401 and elastically squeezes the soft seal with the inner wall of the circulation tube 301.

[0047] At this time, in order to prevent the iron filings adsorbed on the inner wall of the circulation tube 301 under the magnetic attraction of the magnetic arc plate 303 from affecting the sealing of the closure, when the central shaft 401 drives the transmission part 307 to rotate in the opposite direction, the transmission part 307 starts and the output end continues to extend, and the output end of the transmission part 307 drives the magnetic arc plate 303 to move in the opposite direction through the top rod 308 and the second ring sleeve 310 to reduce the distance, then when the central shaft 401 rotates in the opposite direction and drives the fan plate 402 and the magnetic arc plate 303 to rotate in the opposite direction, the magnetic arc plate 303 and the fan plate 402 are always in a staggered position and the magnetic arc plate 303 is located downstream of the gas flow, and the magnetic arc plate 303 is adsorbed in the circulation tube 301. The moving distance of the iron filings on the wall does not correspond to the rotation angle of the fan plate 402. When the fan plate 402 rotates to the maximum angle and is perpendicular to the axis of the circulation tube 301, the magnetic arc plate 303 is not in the same vertical plane as the fan plate 402. Therefore, there is a delay effect between the movement of the magnetic arc plate 303 and the rotation of the fan plate 402. With the help of this delay effect, the magnetic arc plate 303 drives the iron filings adsorbed on the inner wall of the circulation tube 301 to be located downstream of the gas circulation when the fan plate 402 is closed. At this time, this part of the iron filings will not affect the sealing blockage between the fan plate 402 and the elastic sealing part 407 and the inner wall of the circulation tube 301, thereby further achieving the required soft sealing effect.

[0048] After that, the transmission part 307 starts and the output end shortens. The transmission part 307 drives the magnetic arc plate 303 to move in the opposite direction to restore the initial position through the top rod 308 and the second ring sleeve 310. During this movement, the magnetic arc plate 303 drives the iron filings adsorbed on the inner wall of the circulation tube 301 to move. At this time, the iron filings conflict with the fan-shaped plate 402 and the elastic sealing part 407 and cannot move synchronously. The magnetic attraction force on this part of the iron filings continues to decrease and they are separated from the adsorption state with the inner wall of the circulation tube 301, thereby realizing the backward circulation and discharge process of the iron filings when closing, and being filtered and removed inside the subsequent gas delivery and regulation device.

[0049] When the magnetic arc plate 303 matches the end of the fan-shaped plate 402, and the magnetic arc plate 303 and the fan-shaped plate 402 are on the same plane, the distance between the magnetic arc plate 303 and the end of the fan-shaped plate 402 reaches the minimum value, and the magnetic attraction force exerted by the magnetic arc plate 303 on the metal slider 406 inside the side groove 403 reaches the maximum value. Under the action of the magnetic attraction force, the metal slider 406 stretches the multiple elastic parts 405 to move away from the center axis 401 to the maximum distance, and the metal slider 406 simultaneously drives the elastic sealing part 407 to move away from the center axis 401 to the maximum distance, and the elastic sealing part 407 is moved to the maximum distance. Under the limiting action of the blocking block 404, the sealing part 407 extends along the side groove 403 to a maximum distance, and under the elastic force of the elastic sealing part 407 itself, it elastically seals and blocks the inner wall of the circulation pipe 301, further realizing the soft sealing of the inner wall of the circulation pipe 301 by the sector plate 402 and the elastic sealing part 407, avoiding the elastic sealing part 407 from being impacted by the gas and internal impurities inside the circulation pipe 301 for a long time, causing damage and reducing the subsequent soft sealing quality, improving the durability and sealing blocking quality of the elastic sealing part 407, and realizing the complete and thorough sealing required for the natural gas pipeline.

[0050] Based on the above content, if the central axis 401 drives the fan plate 402 to be in a tilted open state, and the amount of gas circulating inside the circulation pipe 301 is in a stable state, the operator will no longer adjust the fan plate 402 for a long time. Therefore, when the magnetic arc plate 303 exerts magnetic attraction on the iron filings inside the circulation pipe 301 and causes other impurities to be adsorbed at the intersection of the end of the fan plate 402 and the inner wall of the circulation pipe 301, the accumulation of other impurities is likely to increase, thereby reducing the delivery volume of gas inside the downstream natural gas pipeline and affecting the detection value of the gas pressure by the downstream collection station.

[0051] When the intelligent gas transmission and regulation device is actually used to precisely regulate the gas inside the natural gas pipeline, the central axis 401 drives the fan plate 402 to tilt at a certain angle, and the gas inside the circulation pipe 301 reaches the intersection of the end of the fan plate 402 and the inner wall of the circulation pipe 301 under the guidance of the fan plate 402 and flows backward. At the same time, the central axis 401 drives the magnetic arc plate 303 to move to a suitable position along the outer surface of the circulation pipe 301. The magnetic arc plate 303 exerts a magnetic attraction on the iron filings inside the circulation pipe 301 and adsorbs them at the intersection of the end of the fan plate 402 and the inner wall of the circulation pipe 301, thereby improving the blocking effect of the inner wall of the circulation pipe 301 against the impact force of the gas and internal impurities. The pressure values ​​detected by the pressure sensors inside the multiple downstream acquisition slave stations are at the set pressure preset value.

[0052] At this time, under the action of the magnetic attraction of the magnetic arc plate 303, the impurities accumulated at the intersection of the end of the fan plate 402 and the inner wall of the circulation pipe 301 gradually increase. The impurities may be other impurities attached to the adsorbed iron filings, which will in turn affect the downstream gas pressure. That is, when the pressure values ​​detected by the pressure sensors inside the multiple downstream collection slave stations decrease and the range of value changes is small, if the central axis 401 is directly adjusted to drive the fan plate 402 to rotate and increase the gas flow rate, a large value change will occur, which will affect the low pressure requirement required for the gas pipeline network to perform the joint operation.

[0053] Therefore, the control panel 109 can correspondingly control the output end of the transmission part 307 to start and extend and shorten, and the output end of the transmission part 307 drives the magnetic arc plate 303 to move back and forth through the second ring sleeve 310 and the top rod 308, and the magnetic arc plate 303 changes its position on the outer surface of the circulation tube 301 and separates from the intersection of the end of the fan plate 402 and the inner wall of the circulation tube 301. Then, the magnetic arc plate 303, under the action of its own magnetic attraction, drives the iron filings adsorbed on the inner wall of the circulation tube 301 to move synchronously and separate from the intersection of the end of the fan plate 402 and the inner wall of the circulation tube 301. This part of the iron filings no longer blocks the intersection of the end of the fan plate 402 and the inner wall of the circulation tube 301, thereby causing the amount of gas transported downstream by the circulation tube 301 to continuously recover to the set pressure preset value, thereby ensuring the stability and rationality of the pressure required by the collection station when performing the collision operation on the gas pipe network.

[0054] At the same time, the magnetic arc plate 303 drives the iron filings and the like adsorbed on the inner wall of the circulation tube 301 to move back and forth under the action of its own magnetic force, and the gas inside the circulation tube 301 continues to flow downstream under the guidance of the fan-shaped plate 402, and the gas at the intersection of the end of the fan-shaped plate 402 and the inner wall of the circulation tube 301 causes turbulence due to the change in the moving distance of the iron filings and the like, and thus the size and direction of the wind impact exerted by the gas on the iron filings and other impurities adsorbed on the inner wall of the circulation tube 301 change accordingly. Under the action of this changing gas impact, the iron filings and other impurities adsorbed on the inner wall of the circulation tube 301 will be broken and scattered, thereby preventing the magnetic arc plate 303 from using the magnetic attraction force to cause other impurities to continue to accumulate at the intersection of the end of the fan-shaped plate 402 and the inner wall of the circulation tube 301 and affect the normal flow of gas downstream.

[0055] At the same time, when the central axis 401 drives the fan-shaped plates 402 on both sides to be parallel to the axis of the circulation tube 301, the ends of the fan-shaped plates 402 are in a horizontal state with the inner wall of the circulation tube 301, and the fan-shaped plates 402 no longer guide and block the gas inside the circulation tube 301. The flow rate of the gas inside the circulation tube 301 reaches the maximum value. However, since the ends of the fan-shaped plates 402 are located at the axis of the circulation tube 301 and are parallel to the gas flow direction, the gas flowing inside the circulation tube 301 will continuously impact the ends of the fan-shaped plates 402. Since the ends of the fan-shaped plates 402 are located upstream, the iron filings in the gas will continuously impact and damage the ends of the fan-shaped plates 402, thereby reducing the subsequent soft sealing quality.

[0056] However, as can be seen from the above, when the central shaft 401 drives the sector plate 402 to rotate, the transmission part 307 synchronously drives the magnetic arc plate 303 to move to the maximum distance, and the magnetic arc plate 303 is still matched with the end of the sector plate 402. At this time, the magnetic attraction force exerted by the magnetic arc plate 303 on the metal slider 406 reaches the minimum value. Under the elastic force of the elastic part 405, the metal slider 406 drives the elastic sealing part 407 to be located inside the side groove 403, thereby preventing the gas and internal impurities from impacting the elastic sealing part 407 for a long time. The magnetic arc plate 303 can prevent the iron filings in the gas from flowing into the inner wall of the flow tube 301 and causing damage, and the magnetic arc plate 303 can make some of the iron filings in the gas flow to and be adsorbed on the inner wall of the flow tube 301 with the help of the magnetic attraction force of the magnetic arc plate 303. Not only can the protective layer formed by the iron filings block and protect the fan-shaped plate 402, but the magnetic arc plate 303 can also make the iron filings flowing in the flow tube 301 flow toward the inner wall of the flow tube 301 in an arc shape under the action of the magnetic attraction force and deviate from the end of the fan-shaped plate 402, so as to avoid the gas driving the internal iron filings to continuously impact the end of the fan-shaped plate 402 and form pits.

[0057] At the same time, the transmission part 307 drives the magnetic arc plate 303 to move back and forth horizontally on the outer surface of the circulation tube 301. The magnetic arc plate 303 drives the iron filings adsorbed inside the circulation tube 301 to move synchronously, thereby changing the inclined flow angle and adsorption position of the iron filings, and cooperating with the continuous flow of gas to further realize the cleaning and protection of the accumulated iron filings, etc., and ensure the durability and safety when the fan-shaped plate 402 is parallel to the axis of the circulation tube 301.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent gas delivery and regulation device during pressure reduction operation, comprising: The charging assembly (1), the driving assembly (2), the valve body assembly (3) and the valve core assembly (4) are characterized by: The valve body assembly (3) comprises a flow pipe (301), and natural gas flows inside the flow pipe (301); Two sets of first sliding parts, each of the first sliding parts being movably connected to the outer surface of the circulation tube (301); The valve core assembly (4) includes a central shaft (401), and the movement distance of the first sliding portion changes accordingly with the rotation angle of the central shaft (401); Two groups of fan-shaped plates (402), the fan-shaped plates (402) are symmetrically fixedly connected to both sides of the central shaft (401), and the central shaft (401) drives the fan-shaped plates (402) to rotate and adjust the natural gas flow inside the circulation pipe (301); An elastic sealing portion (407) is movably connected to a side of the sector plate (402) away from the central axis (401) and is used to achieve a soft seal with the inner wall of the circulation tube (301).

2. The intelligent gas delivery and regulating device during pressure reduction operation according to claim 1 is characterized in that: The drive assembly (2) comprises a drive motor (201), wherein a bottom output end of the drive motor (201) is fixedly connected to the top of the central shaft (401), and the drive motor (201) drives the central shaft (401) to rotate forward and reverse by a preset angle. A scale (202) is provided on the top of the drive motor (201), and the scale (202) detects the rotation angle of the central shaft (401) in real time.

3. The intelligent gas delivery and regulation device during pressure reduction operation according to claim 2 is characterized in that: A connecting disk (203) is provided at the bottom of the driving motor (201), a protective sleeve (204) is provided at the bottom of the connecting disk (203), the bottom of the protective sleeve (204) is fixedly connected to the top of the circulation tube (301), and the central shaft (401) is located inside the protective sleeve (204). The protective sleeve (204) wraps and protects the outer surface of the central shaft (401), and the outer surface of the protective sleeve (204) is provided with two groups of fan-shaped grooves (205), and the opening angle of the fan-shaped grooves (205) is greater than 90 degrees.

4. The intelligent gas delivery and regulation device during pressure reduction operation according to claim 3 is characterized in that: A rotating rod (305) is provided on the outer surface of the central shaft (401) and located inside the fan-shaped groove (205). The rotating rod (305) rotates synchronously with the rotation of the central shaft (401). A bottom rod (306) is provided at the bottom of the rotating rod (305). The outer surface of the bottom rod (306) is rotatably connected to a first ring sleeve (309). A top rod (308) is provided on the top of the first sliding part. The outer surface of the top rod (308) is movably connected to a second ring sleeve (310). A transmission part (307) is movably connected between the first ring sleeve (309) and the second ring sleeve (310). The transmission part (307) drives the first sliding part to move laterally along the outer surface of the circulation tube (301).

5. The intelligent gas delivery and regulation device during pressure reduction operation according to claim 1 is characterized in that: The first sliding part is a magnetic arc plate (303), and the magnetic arc plates (303) are movably connected to the outer surface of the circulation tube (301). The magnetic arc plates (303) have magnetism and exert magnetic attraction on iron filings inside the circulation tube (301). Two flanges (302) are symmetrically provided on both sides of the circulation tube (301). Adjustment plates (304) are provided on opposite sides of the two magnetic arc plates (303), and the working surfaces of the adjustment plates (304) are in contact with the outer surface of the circulation tube (301).

6. The intelligent gas delivery and regulating device during pressure reduction operation according to claim 5, characterized in that: The outer surface of the circulation tube (301) is evenly provided with a plurality of limiting grooves (311), the inner portion of the limiting grooves (311) is sealed and slidably connected to a limiting block (312), one side of the limiting block (312) is fixedly connected to the inner wall of the magnetic arc plate (303), the inner bottom of the circulation tube (301) is provided with a circular groove (313), and the bottom of the central axis (401) passes through the circulation tube (301) and is sealed and rotatably connected to the inner wall of the circular groove (313).

7. The intelligent gas delivery and regulating device during pressure reduction operation according to claim 1 is characterized in that: The fan-shaped plate (402) is provided with a side groove (403) on one side away from the central axis (401), and the inner wall of the side groove (403) is evenly fixedly connected with a plurality of elastic parts (405), and the elastic parts (405) are elastic. The other end of the elastic part (405) is fixedly connected with a second sliding part, and the other end of the second sliding part is fixedly connected to the side wall of the elastic sealing part (407). The outer surface of the second sliding part is sealingly and slidingly connected to the inner wall of the side groove (403), and two blocking blocks (404) are symmetrically and fixedly connected to the end of the inner wall of the side groove (403), and the side wall of the blocking block (404) is sealingly and slidingly connected to the outer surface of the elastic sealing part (407).

8. The intelligent gas delivery and regulating device during pressure reduction operation according to claim 1 is characterized in that: The size of the sector plate (402) is smaller than the size of the inner wall of the circulation tube (301), the elastic sealing portion (407) is an arc-shaped structure and has elasticity, and the sum of the sizes of the sector plate (402) and the elastic sealing portion (407) matches the inner wall of the circulation tube (301).

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