Intelligent pressure regulating and metering pry

Abstract

The invention discloses an intelligent pressure regulating and metering pry, and belongs to the technical field of pressure regulating and metering pry. Comprising a base; the skid-mounted component and the valve bodies are arranged on the base, the valve bodies are fixedly connected and communicated with the skid-mounted component, the valve bodies are in sealed sliding connection with valve rods, and the valve rods are in sealed sliding and rotating connection with sealing blocks; the sealing blocks are fixedly connected with first connecting pieces, the multiple sliding frames slide on the first connecting pieces of the adjacent sealing blocks respectively, the sealing blocks are fixedly connected with first sealing rings, and the multiple sliding frames located on the first connecting pieces of the same sealing blocks are jointly and fixedly connected with rubber rings. Solid particles located at the attaching position of the first sealing ring and the valve body are pushed to the outside in advance, then the first sealing ring and the valve body are attached to complete plugging, and the situation that the first sealing ring cannot be completely attached to the valve body due to the solid particles, and the sealing effect is reduced is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of voltage regulating and metering skids, and in particular to an intelligent voltage regulating and metering skid. Background Art

[0002] The pressure regulating and metering skid is an integrated system, which is usually used to realize pressure regulation, flow measurement and other related functions in the transportation process of natural gas or other fluids. The pressure regulating and metering skid is composed of multiple valves, multiple pipelines and multiple instruments, and is installed and processed differently according to the different flowing media in the pipeline. This system is often used in industrial fields, such as oil and gas industry, chemical plants, power plants, etc., to ensure the safety and efficiency of fluids during transmission.

[0003] When the pressure regulating and metering skid is used to transport impurities containing solid particles such as slurry and suspension, when the regulating valve in the pressure regulating and metering skid closes the flow of the medium, solid particles will remain between the fitting surface of the sealing ring and the valve, causing the sealing ring to be unable to completely fit the valve, thereby reducing the sealing effect of the sealing ring on the valve. Summary of the invention

[0004] In order to overcome the disadvantage that solid particles are left between the fitting surfaces of the sealing ring and the valve, resulting in the sealing ring being unable to completely fit the valve, the present invention provides an intelligent pressure regulating and metering skid.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: an intelligent pressure regulating and metering skid, comprising: Base; A skid-mounted component and a plurality of valve bodies are all arranged on the base, the plurality of valve bodies are fixedly connected and communicated with the skid-mounted component, the valve body is sealingly and slidably connected to a valve stem, the valve stem is sealingly and slidably and rotatably connected to a sealing block, and the sealing block is sealed and matched with the adjacent valve body; A plurality of sliding frames, the sealing block is fixedly connected with a first connecting piece, the plurality of sliding frames slide on the first connecting pieces of adjacent sealing blocks respectively, the sealing block is fixedly connected with a first sealing ring, and the plurality of sliding frames located on the first connecting piece of the same sealing block are fixedly connected with a rubber ring; A plurality of first elastic elements are respectively arranged between the sliding frame and the first connecting member of the sealing block; A plurality of driving modules are respectively arranged on the valve body and used for driving the adjacent valve stems to move; A plurality of transmission components are respectively arranged on the valve stem and are used to drive a plurality of adjacent sliding frames to move synchronously.

[0006] As a preferred technical solution of the present invention, the transmission assembly includes: An extrusion block, fixedly connected to the valve stem and located inside the valve body; Trigger blocks, the number of which is the same as the sliding frames on the adjacent sealing blocks, are respectively fixedly connected to the sliding frames, and the trigger blocks are extrusion-matched with the extrusion blocks; A second elastic element is disposed between the valve stem and the sealing block; The rotating assembly is arranged on the valve stem and is used for driving the sealing block to rotate.

[0007] As a preferred technical solution of the present invention, a sealing soft film is fixedly connected between the first connecting piece on the sealing block and the rubber ring.

[0008] As a preferred technical solution of the present invention, the rotating assembly includes: A clamping block is fixedly connected to the sealing block, a spiral groove is provided inside the valve stem, and the clamping block is slidably connected to the spiral groove; There are a plurality of push blocks which are circumferentially distributed on the rubber ring.

[0009] As a preferred technical solution of the present invention, the sides of the push block that are not in contact with the rubber ring are all in a sharpened state.

[0010] As a preferred technical solution of the present invention, it also includes: The gas guide tubes are the same in number as the driving modules and are respectively arranged on adjacent driving modules, and the driving modules use gas to control the movement of adjacent valve stems; The number of second sealing rings is the same as that of the valve body, and they are respectively arranged inside the valve body, and the second sealing rings are fitted with the valve stem; The number of airbags is the same as that of the second sealing rings, and they are respectively arranged inside the valve body, and the airbags are extrusion-fitted with the second sealing rings; Injection components, the number of which is the same as the air guide tubes, used to inject gas into adjacent air bags; The lubrication components are the same in number as the valve body and are respectively arranged inside the valve body to reduce the wear of the second sealing ring.

[0011] As a preferred technical solution of the present invention, the injection assembly includes: A three-way valve is arranged on the adjacent air guide pipe; A connecting pipe, fixedly connected and connected between the three-way valve and the airbag; The one-way valve and the pressure sensor are both arranged on the connecting pipe.

[0012] As a preferred technical solution of the present invention, the pressure sensor is located between the one-way valve and the airbag, and is used to detect pressure changes in the airbag.

[0013] As a preferred technical solution of the present invention, the lubrication component includes: An oil bag is arranged in the adjacent valve body, and the oil bag is squeezed and matched with the adjacent air bag; There are several hard sheet films which are circumferentially arranged in the oil bag.

[0014] As a preferred technical solution of the present invention, the airbag and the oil bag are hard structures on one side close to the valve stem, and the other sides are soft structures, and a gap is left between the airbag, the oil bag and the valve stem.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: 1. The present invention pushes the solid particles located at the joint between the first sealing ring and the valve body to the outside in advance, and then makes the first sealing ring and the valve body fit together to complete the sealing, thereby preventing the solid particles from causing the first sealing ring to be unable to fully fit the valve body and reduce the sealing effect.

[0016] 2. By separating the first sealing ring from the valve body and allowing the medium to flow, the first sealing ring is wrapped inside the sealing soft film and the rubber ring, so that the medium does not contact the first sealing ring after it starts to flow, thereby preventing solid particles in the medium from damaging the first sealing ring in the flowing state and reducing its sealing effect.

[0017] 3. The airbag continuously squeezes the second sealing ring so that the second sealing ring is always in contact with the valve stem to form a seal to avoid leakage of the valve body. At the same time, the gas pressure in the airbag is maintained to prevent the airbag from failing to deform the second sealing ring.

[0018] 4. The air bag squeezes the oil bag so that the lubricating oil in the oil bag is injected into the space between the second sealing ring and the valve stem, thereby reducing the friction between the second sealing ring and the valve stem and extending the service life of the second sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the valve body of the present invention; Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the valve stem and the sealing block of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping block and the spiral groove of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the push block of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the air guide pipe and the second sealing ring of the present invention; Figure 7 It is a schematic cross-sectional view of the three-dimensional structure of the air bag and the oil bag of the present invention.

[0020] The names and serial numbers of the parts in the figure are: 1-base, 2-skid component, 3-valve body, 4-valve stem, 5-sealing block, 6-sliding frame, 7-first sealing ring, 8-rubber ring, 9-first elastic element, 10-driving module, 11-extrusion block, 12-trigger block, 13-second elastic element, 14-sealing soft film, 201-block, 202-spiral groove, 203-push block, 301-air guide tube, 302-second sealing ring, 303-air bag, 304-three-way valve, 305-connecting pipe, 306-check valve, 307-pressure sensor, 308-oil bag, 309-hard film. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiment is only one of the better specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention without making any creative work should be covered within the protection scope of the present invention.

[0022] When the pressure regulating and metering skid handles slurries or suspensions containing solid particles, the particles may be retained between the sealing ring and the valve contact surface during the process of cutting off the fluid flow, preventing the sealing ring from fully fitting with the valve surface, thereby weakening the sealing performance of the sealing ring.

[0023] An intelligent pressure regulating and metering skid, Figure 1-Figure 4 As shown, it includes: a base 1; a skid-mounted component 2 and a plurality of valve bodies 3, all of which are arranged on the base 1, the plurality of valve bodies 3 are fixedly connected and communicated with the skid-mounted component 2, the valve body 3 is sealingly and slidably connected to a valve stem 4, the valve stem 4 is sealingly, slidably and rotatably connected to a sealing block 5, the sealing block 5 is sealed and cooperated with the adjacent valve body 3; a plurality of sliding frames 6, the sealing block 5 is fixedly connected to a first connecting piece, the plurality of sliding frames 6 respectively slide on the first connecting pieces of adjacent sealing blocks 5, the sealing block 5 is fixedly connected to a first sealing ring 7, and the plurality of sliding frames 6 located on the first connecting piece of the same sealing block 5 are commonly and fixedly connected to a rubber ring 8; a plurality of first elastic elements 9, respectively arranged between the sliding frames 6 and the first connecting pieces of the adjacent sealing blocks 5; a plurality of driving modules 10, respectively arranged on the valve body 3, for driving the adjacent valve stems 4 to move; a plurality of transmission components, respectively arranged on the valve stem 4, for driving the adjacent plurality of sliding frames 6 to move synchronously.

[0024] In the above scheme, the skid-mounted component 2 is of modular design, which includes multiple valves, pipelines and instruments, and is provided with a control module to form a complete integrated module, which can be changed accordingly according to different conveyed media and is suitable for different process requirements and application scenarios. The valve body 3 and the pipeline of the skid-mounted component 2 are fixedly connected and communicated with each other, and the valve stem 4, the sealing block 5 and the sliding frame 6 are all provided with a wear-resistant coating, such as a chrome coating. The number of sliding frames 6 is set according to actual conditions, and is distributed at equal intervals in the circumferential direction on the sealing block 5 to make the rubber ring 8 expand evenly. The rubber ring 8 is made of elastic material and can be elastically expanded. The first elastic element 9 is a spring. The outside is also provided with a wear-resistant coating. The first elastic element 9 is used to drive the sliding frame 6 to reset. The driving module 10 is a power mechanism and is electrically connected to the control module. The driving module 10 can be an electric actuator (such as a motor and an electric push rod), a hydraulic actuator (such as a hydraulic push rod), a pneumatic actuator, etc., which can be replaced according to different actual conditions. In the attached figure, it is a pneumatic actuator. The pneumatic actuator has the characteristic of rapid response. The solid particles located at the joint between the first sealing ring 7 and the valve body 3 are pushed to the outside in advance, and then the first sealing ring 7 is made to fit the valve body 3 to complete the sealing, so as to avoid the solid particles causing the first sealing ring 7 to be unable to fully fit the valve body, thereby reducing the sealing effect.

[0025] Specifically, compare Figure 2 and Figure 3 As shown, the transmission assembly includes: an extrusion block 11, which is fixedly connected to the valve stem 4 and is located inside the valve body 3; a trigger block 12, the number of which is the same as the sliding frame 6 on the adjacent sealing block 5, which is respectively fixedly connected to the sliding frame 6, and the trigger block 12 is extruded and matched with the extrusion block 11; a second elastic element 13, which is arranged between the valve stem 4 and the sealing block 5; a rotating assembly, which is arranged on the valve stem 4 and is used to drive the sealing block 5 to rotate; a sealing soft film 14 is fixedly connected between the first connecting piece on the sealing block 5 and the rubber ring 8.

[0026] In the above scheme, the outside of the extrusion block 11 and the trigger block 12 are both provided with a wear-resistant coating. The extrusion block 11 is a truncated cone structure, with the end with a small diameter located at the lower side and the end with a large diameter located at the upper side. The trigger block 12 has an arc-shaped surface that fits the extrusion block 11, so that the extrusion block 11 drives several trigger blocks 12 to slide outward at the same time. The second elastic element 13 is a spring, which is used to drive the sealing block 5 to reset. The material of the sealing soft film 14 is a wear-resistant material, and the initial state is a soft state, which is used to adapt to the position change and expansion of the rubber ring 8. When the first sealing ring 7 is separated from the valve body 3 and the medium starts to flow, the first sealing ring 7 is wrapped inside the sealing soft film 14 and the rubber ring 8, so that the medium does not contact the first sealing ring 7 after it starts to flow, so as to avoid the solid particles in the medium from damaging the first sealing ring 7 in the flowing state and reducing its sealing effect.

[0027] Specifically, compare Figure 3-Figure 5 As shown, the rotating assembly includes: a clamping block 201, which is fixedly connected to the sealing block 5, a spiral groove 202 is provided inside the valve stem 4, and the clamping block 201 is slidably connected to the spiral groove 202; there are a plurality of push blocks 203, which are circumferentially distributed on the rubber ring 8; the sides of the push blocks 203 that are not in contact with the rubber ring 8 are all in a sharpened state.

[0028] In the above scheme, the block 201 is made of high-strength metal and is provided with a wear-resistant coating on the outside to reduce its wear. The valve stem 4 drives the sealing block 5 to rotate through the cooperation of the spiral groove 202 and the block 201. The push blocks 203 are distributed on the rubber ring 8 at equal intervals in the circumferential direction, so as to drive the push blocks 203 to remove solid particles in the circumferential direction when the rubber ring 8 rotates and expands, thereby increasing the cleaning effect of the solid particles.

[0029] Specific working steps: When the staff needs to transport the suspension or slurry, the staff will dock the assembled device with the corresponding pipeline and start the medium to flow. At this time, the staff will open the drive module 10 through the control module, and adjust and monitor the pressure and flow of the medium in combination with the remaining valves and instruments. The drive module 10 drives the adjacent valve stem 4 to move up and down, so that the valve stem 4 drives the sealing block 5 thereon to open or close the valve body 3.

[0030] When the driving module 10 drives the sealing block 5 to fit with the valve body 3 through the valve stem 4 to stop the flow of the medium, the valve stem 4 drives the sealing block 5 to move downward synchronously. At this time, the sealing block 5 drives the first sealing ring 7 and the rubber ring 8 thereon to move downward synchronously, and this is done until the sealing block 5 drives the bottom of the rubber ring 8 thereon to contact the valve body 3. At this time, the valve stem 4 continues to move downward, and the valve stem 4 drives the extrusion block 11 thereon to move downward synchronously. The valve stem 4 slides along the sealing block 5. At this time, the second elastic element 13 is compressed, and at the same time, the extrusion block 11 squeezes several adjacent trigger blocks 12, so that the several trigger blocks 12 drive several circumferentially distributed sliding frames 6 to slide synchronously outward along the first connecting piece of the sealing block 5. At the same time, several first elastic elements 9 are compressed, and several circumferentially distributed sliding frames 6 pull the rubber ring 8 to expand outward. The first sealing ring 7 and the second sealing ring 7 are connected to the valve body 3 and the sealing ring 7 is connected to the valve body 3. The sealing ring 8 is pressed against the first sealing ring 7 and the second sealing ring 7 is pressed against the first sealing ring 7. The sealing ring 8 is pressed against the first sealing ring 7 and the second sealing ring 7 is pressed against the first sealing ring 7.

[0031] In the process of the sealing block 5 blocking the valve body 3, the valve stem 4 will slide inwardly along the sealing block 5. At this time, the valve stem 4 drives the spiral groove 202 inside it to slide downward synchronously. The spiral groove 202 squeezes the adjacent block 201. The block 201 is driven by the extrusion force to rotate the sealing block 5, so that the sealing block 5 drives the circumferentially distributed sliding frames 6 to rotate through the first connecting member thereon, so that the several sliding frames 6 drive the rubber ring 8 to rotate synchronously, and the rubber ring 8 drives the circumferentially distributed push blocks 203 thereon to rotate synchronously, so that the push blocks 203 rotate and scrape off the solid particles attached to the joint between the first sealing ring 7 and the valve body 3, further improving the cleaning effect of the solid particles, and so on until the rubber ring 8 expands to an inner diameter larger than the outer diameter of the first sealing ring 7, the rubber ring 8 releases the limit on the first sealing ring 7, and the rubber ring 8 stops rotating.

[0032] When the driving module 10 controls the valve stem 4 to drive the sealing block 5 to separate from the valve body 3 and the medium starts to flow, the valve stem 4 drives the sealing block 5 to move upward. At this time, the second elastic element 13 is reset, and the block 201 is reset to the initial state along the spiral groove 202. The valve stem 4 drives the sealing block 5 to continue to move upward, so that the sealing block 5 drives the first sealing ring 7 to separate from the valve body 3. The first sealing ring 7 moves upward until the limit with the rubber ring 8 switches from the lateral limit to the vertical limit. The first elastic element 9 is reset, so that the rubber ring 8 is reset to the initial state, and the first sealing ring 7 is wrapped around the sealing soft film 14 and the inside of the rubber ring 8, so that the medium does not contact the first sealing ring 7 after it starts to flow, so as to avoid the solid particles in the medium from damaging the first sealing ring 7 in the flowing state and reducing its sealing effect.

[0033] In a further embodiment, the control Figure 6 and Figure 7 As shown, it also includes: air guide tubes 301, which are the same in number as the drive modules 10 and are respectively arranged on adjacent drive modules 10, and the drive modules 10 use gas to control the movement of adjacent valve stems 4; second sealing rings 302, which are the same in number as the valve bodies 3 and are respectively arranged inside the valve bodies 3, and the second sealing rings 302 are fitted with the valve stems 4; air bags 303, which are the same in number as the second sealing rings 302 and are respectively arranged inside the valve bodies 3, and the air bags 303 are squeezed and matched with the second sealing rings 302; injection components, which are the same in number as the air guide tubes 301, are used to inject gas into adjacent air bags 303; lubrication components, which are the same in number as the valve bodies 3, are respectively arranged inside the valve bodies 3, and are used to reduce the wear of the second sealing rings 302.

[0034] In the above scheme, the air guide tube 301 is connected to the external air injection device, and the external air injection device is electrically connected to the control module. The second sealing ring 302 is used to block the connection between the valve body 3 and the valve stem 4 to prevent leakage of the medium inside the valve body 3. The airbag 303 is filled with gas, and the airbag 303 in the initial state has not expanded to the maximum state. The drive module 10 is only a pneumatic actuator. The drive module 10 is composed of an intelligent control unit, two sealing shells, a diaphragm, a catheter, and two springs, and the two springs are located between the diaphragm and the lower sealing shell. The valve stem 4 is fixedly connected to the diaphragm in the adjacent drive module 10. The specific working process is that the air injection device injects gas into the air guide tube 301, and the gas enters the intelligent control unit along the air guide tube 301, and the intelligent control unit finally enters between the diaphragm and the upper sealing shell through the catheter, so that the gas pushes the diaphragm and then drives the valve stem 4 to move downward. The upward movement means that the air injection device extracts gas along the original path.

[0035] Specifically, compare Figure 6 and Figure 7 As shown, the injection assembly includes: a three-way valve 304, which is arranged on the adjacent air guide tube 301; a connecting tube 305, which is fixedly connected and connected between the three-way valve 304 and the airbag 303, and the three-way valve 304 is used to control the opening and closing of the connecting tube 305; a one-way valve 306 and a pressure sensor 307, both of which are arranged on the connecting tube 305; the pressure sensor 307 is located between the one-way valve 306 and the airbag 303, and is used to detect the pressure change in the airbag 303.

[0036] In the above scheme, the three-way valve 304 is used to switch the flow channel of the air duct 301, that is, to switch the flow direction of the gas, so that the gas entering the air duct 301 enters the connecting tube 305 and does not continue to flow along the air duct 301 into the space between the upper sealing shell and the diaphragm. The one-way valve 306 is used to allow the gas in the air duct 301 to enter the airbag 303 in one direction to prevent the gas in the airbag 303 from being discharged along the original path. The pressure sensor 307 is used to detect the pressure change in the airbag 303.

[0037] Specifically, compare Figure 6 and Figure 7 As shown, the lubrication assembly includes: an oil bag 308, which is arranged in the adjacent valve body 3, and the oil bag 308 is squeezed and matched with the adjacent air bag 303; a plurality of hard film 309, which are circumferentially arranged in the oil bag 308; the air bag 303 and the oil bag 308 are hard structures on one side close to the valve stem 4, and the other sides are soft structures, and a gap is left between the air bag 303, the oil bag 308 and the valve stem 4.

[0038] In the above scheme, the oil bag 308 is filled with lubricating oil and is provided with an oil filling pipe connected to the outside for adding lubricating oil to the oil bag 308. The oil bag 308 expands to the limit state, and the pressure of the lubricating oil inside the oil bag 308 is consistent with the gas pressure in the initial air bag 303. The hard film 309 (with the same working principle as the pressure relief valve, when the pressure in the system exceeds the set pressure value, the hard film 309 opens and begins to release excess pressure. The existing application is the screaming bottle mouth principle), the material and shape of the air bag 303 and the oil bag 308 are limited, and are used to make the air bag 303 and the oil bag 308 expand up and down to avoid contact with the valve stem 4, reduce the wear of the air bag 303 and the oil bag 308, and increase the service life.

[0039] When the driving module 10 controls the valve stem 4 through gas to start or stop the flow of the medium, the valve stem 4 will slide with the second sealing ring 302. After long-term use, the second sealing ring 302 will be worn out due to friction, and then a gap will be generated between the second sealing ring 302 and the valve stem 4, reducing the sealing effect of the second sealing ring 302 on the valve stem 4, causing leakage of the valve body 3. At this time, the gas in the airbag 303 will squeeze the second sealing ring 302 to deform it, so that the second sealing ring 302 contacts the valve stem 4 to form a seal, so as to avoid leakage of the valve body 3. At this time, the gas expansion pressure in the airbag 303 decreases, and the pressure sensor 307 sends signals to the three-way valve 304 and the external gas injection device at the same time. If the gas in the air guide tube 301 is controlling the movement of the valve stem 4 at this time, after the valve stem 4 moves to the required position, the three-way valve 304 opens the connecting tube 305 to switch the flow direction of the gas, so that the external gas injection device injects gas into the connecting tube 305, and the gas enters the airbag 303 along the connecting tube 305, restoring the gas pressure in the airbag 303 to the initial state.

[0040] During the process of the gas pressure in the airbag 303 recovering to the initial state, the second sealing ring 302 and the valve stem 4 are in contact and cannot be compressed further. When the gas pressure in the airbag 303 recovers to the initial state, the pressure sensor 307 detects that the gas pressure in the airbag 303 is reset, and sends a signal to the connecting pipe 305 and the gas injection device after a delay of 1 to 2 seconds, so that the three-way valve 304 delays closing the connecting pipe 305. During this process, gas continues to be injected into the airbag 303, so that the gas in the airbag 303 squeezes the oil bag 308. The lubricating oil in the oil bag 308 is affected by the squeezing force, and the oil pressure increases and then breaks through the blockage of the hard film 309. The lubricating oil in the oil bag 308 is injected between the second sealing ring 302 and the valve stem 4, thereby reducing the friction between the second sealing ring 302 and the valve stem 4 and extending the service life of the second sealing ring 302.

[0041] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent pressure regulating and metering skid, characterized in that: Included are: Base (1); A skid-mounted component (2) and a plurality of valve bodies (3) are all arranged on the base (1); the plurality of valve bodies (3) are all fixedly connected to and communicated with the skid-mounted component (2); the valve body (3) is sealingly slidably connected to a valve stem (4); the valve stem (4) is sealingly slidably and rotatably connected to a sealing block (5); the sealing block (5) is sealed and matched with an adjacent valve body (3); A plurality of sliding frames (6), the sealing block (5) being fixedly connected to a first connecting piece, the plurality of sliding frames (6) respectively sliding on the first connecting pieces of adjacent sealing blocks (5), the sealing block (5) being fixedly connected to a first sealing ring (7), and the plurality of sliding frames (6) located on the first connecting piece of the same sealing block (5) being fixedly connected to a rubber ring (8); A plurality of first elastic elements (9), respectively arranged between the sliding frame (6) and the first connecting member of the sealing block (5); A plurality of drive modules (10), respectively arranged on the valve body (3) and used to drive adjacent valve stems (4) to move; A plurality of transmission components are respectively arranged on the valve stem (4) and are used to drive a plurality of adjacent sliding frames (6) to move synchronously.

2. The intelligent voltage regulating and metering skid according to claim 1 is characterized in that: The transmission assembly comprises: An extrusion block (11) is fixedly connected to the valve stem (4) and is located inside the valve body (3); The trigger blocks (12) are the same in number as the sliding frames (6) on the adjacent sealing blocks (5), and are respectively fixedly connected to the sliding frames (6). The trigger blocks (12) are pressed and matched with the extrusion blocks (11); A second elastic element (13) is arranged between the valve stem (4) and the sealing block (5); A rotating assembly is arranged on the valve stem (4) and is used to drive the sealing block (5) to rotate.

3. The intelligent voltage regulating and metering skid according to claim 2 is characterized in that: A sealing soft film (14) is fixedly connected between the first connecting piece on the sealing block (5) and the rubber ring (8).

4. The intelligent voltage regulating and metering skid according to claim 2 is characterized in that: The rotating assembly comprises: A clamping block (201) is fixedly connected to the sealing block (5); a spiral groove (202) is provided inside the valve stem (4); and the clamping block (201) is slidably connected to the spiral groove (202); There are a plurality of push blocks (203) distributed circumferentially on the rubber ring (8).

5. The intelligent pressure regulating and metering skid according to claim 4 is characterized in that: The sides of the push block (203) that are not in contact with the rubber ring (8) are all in a sharpened state.

6. The intelligent pressure regulating and metering skid according to claim 4 is characterized in that: Also included are: The gas guide tubes (301) are the same in number as the driving modules (10) and are respectively arranged on adjacent driving modules (10), and the driving modules (10) use gas to control the movement of adjacent valve stems (4); The second sealing rings (302) are the same in number as the valve body (3) and are respectively arranged inside the valve body (3), the second sealing rings (302) being in close contact with the valve stem (4); The number of airbags (303) is the same as that of the second sealing rings (302), and they are respectively arranged inside the valve body (3), and the airbags (303) and the second sealing rings (302) are extruded and matched; Injection components, the number of which is the same as the air guide tubes (301), and are used to inject gas into adjacent air bags (303); Lubrication components, the number of which is the same as the valve body (3), are respectively arranged inside the valve body (3) and are used to reduce the wear of the second sealing ring (302).

7. The intelligent pressure regulating and metering skid according to claim 6 is characterized in that: The injection assembly comprises: A three-way valve (304) is arranged on the adjacent air guide pipe (301); A connecting pipe (305) fixedly connected and connected between the three-way valve (304) and the airbag (303); The one-way valve (306) and the pressure sensor (307) are both arranged on the connecting pipe (305).

8. The intelligent voltage regulating and metering skid according to claim 7 is characterized in that: The pressure sensor (307) is located between the one-way valve (306) and the airbag (303), and is used to detect pressure changes in the airbag (303).

9. The intelligent pressure regulating and metering skid according to claim 7 is characterized in that: The lubrication assembly comprises: An oil bag (308) is arranged in an adjacent valve body (3), and the oil bag (308) is extruded and matched with the adjacent air bag (303); There are a plurality of hard sheet films (309) which are circumferentially arranged in the oil bag (308).

10. The intelligent pressure regulating and metering skid according to claim 9, characterized in that: The air bag (303) and the oil bag (308) have a hard structure on one side close to the valve stem (4), and the other sides have a soft structure, and a gap is left between the air bag (303), the oil bag (308) and the valve stem (4).

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