Ultra-high pressure zero-leakage throttle valve based on pressure rating and its opening and closing control method

Abstract

This invention relates to the field of throttle valve technology and discloses an ultra-high pressure zero-leakage throttle valve based on pressure rating. The valve includes a main body shell, with a sealing tube mounted on the top outer wall of the main body shell. A rotating handle is located at the top of the sealing tube. Two sets of semi-circular sealing plates are rotatably connected to one end of a limiting ring via U-shaped plates. The other end of the limiting ring is slidably connected to a support rail. When the two sets of semi-circular sealing plates move, the guiding effect of the support rail and the limiting ring causes their opposite ends to simultaneously converge towards the center end of the support rail. Simultaneously, the pressure of the flowing liquid applies pressure to the center end of the support rail, thereby reducing the liquid pressure on the rotating shaft driven by the rotating handle, which in turn drives the lead screw. This reduces the force required to open the device, facilitating easier device operation.

Description

Technical Field

[0001] This invention relates to the field of throttle valve technology, specifically to an ultra-high pressure zero-leakage throttle valve based on pressure rating and its opening and closing control method. Background Technology

[0002] Oil drilling refers to the process of drilling a cylindrical borehole of a certain diameter downwards or to one side at a pre-selected location on the surface after discovering an oil-bearing block through exploration, using specialized equipment and technology, and reaching the underground oil and gas layer. With the increasing intensity of oil extraction, higher requirements are placed on oil well control equipment. As a core component of the choke pipeline, the drilling gas flow valve plays a role in controlling the wellbore pressure during the drilling process.

[0003] In oil drilling environments, the pressure of the oil flowing through the throttle valve cavity is relatively high, which results in a longer stroke of the valve core required to open and close the throttle valve used in the oil industry.

[0004] By using a longer valve core travel stroke, the pressure required to rotate the valve core is reduced. During the opening and closing of the valve core, the petroleum liquid still maintains pressure on the valve core, and the force point of the valve core is lower at this time.

[0005] Therefore, an ultra-high pressure zero-leakage throttle valve based on pressure level is proposed. Summary of the Invention

[0006] This invention provides an ultra-high pressure zero-leakage throttle valve based on pressure level and its opening and closing control method, which solves the problems mentioned in the background art.

[0007] This invention provides the following technical solution: an ultra-high pressure zero-leakage throttle valve based on pressure rating, comprising a throttle valve body shell, a sealing tube mounted on the top outer wall of the throttle valve body shell, a rotating handle disposed on the top of the sealing tube, a controller mounted on the top outer wall of the throttle valve body shell, control buttons and a display screen respectively embedded on the top outer wall of the controller, a throttle valve groove formed on the inner wall of the throttle valve body shell, a guide ring assembly and a retaining ring respectively mounted on the inner wall of the throttle valve groove, a support slide rail mounted on the inner wall of the retaining ring, a limit ring slidably connected to the inner wall of the support slide rail, a semi-circular sealing plate disposed on the side of the support slide rail near the guide ring assembly, and a semi-circular sealing plate disposed on the side near the retaining ring. The outer wall has an arc-shaped groove, and the inner wall of the arc-shaped groove is fitted with a U-shaped plate. A pivot hinge is fitted on the outer edge of the semi-circular sealing plate away from the arc-shaped groove. A rotating seat is fitted on the outer wall of the semi-circular sealing plate away from the retaining ring. One end of a pull rod is rotatably connected to the inner wall of the rotating seat. A pull plate is rotatably connected to the other end of the pull rod. A movable pull bracket is fitted on the outer wall of the pull plate away from the pull rod. A threaded groove is formed on the outer wall of the center of the movable pull bracket. A lead screw is threadedly connected to the inner wall of the threaded groove. A support guide rail is fitted on the inner wall of the throttle valve groove. A fixing frame is fitted on the inner wall of the support guide rail near the guide ring assembly. A circular groove is formed on the outer edge of the center of the fixing frame. An energy recovery component is provided on the outer edge of the lead screw.

[0008] As a preferred technical solution of the present invention, the end of the lead screw away from the threaded groove is equipped with a circular groove, and the outer edge of the circular groove is respectively meshed with a second gear and a third gear. The inner cavity of the second gear is provided with a rotating shaft, the bottom of the rotating shaft is rotatably connected to a supporting rotating body, the side of the supporting rotating body away from the first gear is rotatably connected to a fourth gear, and a pressure sensor is embedded in the top of the supporting guide rail.

[0009] The energy recovery assembly includes a support body, a fixing circular hole on the outer wall of the support body near the rotating shaft, a rotating groove on the outer wall of the support body away from the rotating shaft, an installation rotating groove on the outer edge of the support body, a rotating shaft body rotatably connected to the inner wall of the installation rotating groove, a driven gear mounted on the outer edge of the rotating shaft body, and a rotating blade mounted on the end of the rotating shaft body away from the support body.

[0010] As a preferred embodiment of the present invention, the rotating handle is assembled to the top of the rotating shaft, the rotating shaft is rotatably connected to the inner cavity of the sealing tube, there are two semicircular sealing plates, and the two semicircular sealing plates form a complete circle. The rotating seats and pull rods provided on the outer walls of the two sets of semicircular sealing plates are symmetrically arranged, and the two sets of pull rods are rotatably connected to the two ends of the pull plate respectively.

[0011] As a preferred embodiment of the present invention, both sets of semicircular sealing plates are rotatably connected to one end of the limiting ring via a U-shaped plate. The limiting ring is provided with a bearing on the outer edge of one end of the inner wall of the supporting slide rail. The threaded groove is threadedly connected to the lead screw, and the lead screw is rotatably connected to the fixing frame via a circular groove.

[0012] As a preferred embodiment of the present invention, the pressure sensors are of a certain number, and a certain number of support rails are arranged in a linear array on the top of the support rails. The pressure sensors are electrically connected to the controller in parallel, and the two ends of the movable pull frame that contact the pressure sensors are provided with protrusions.

[0013] As a preferred embodiment of the present invention, the supporting rotating body is coaxially arranged with the circular groove and the fourth gear, and the supporting rotating body is coaxially arranged with the rotating shaft and the third gear. The supporting rotating body is rotatably connected with the first gear, the second gear, the third gear and the fourth gear.

[0014] As a preferred embodiment of the present invention, a supporting rotating shaft is fitted on the outer wall of the rotating page away from the rotating shaft body, and a meshing tooth is rotatably connected to the inner wall of the rotating groove. The outer edge of the meshing tooth is provided with a meshing tooth, and a collar is fitted on the inner edge of the meshing tooth. A hollow motor is fitted on the outer wall of the meshing tooth away from the supporting body, and a motor rotating shaft is provided in the inner cavity of the hollow motor.

[0015] As a preferred embodiment of the present invention, the guide ring assembly includes a return seat, a guide seat, and a support main seat. The outer wall of the return seat near the guide seat has a return slope. The outer wall of the support main seat near the return seat has an impact groove. The side of the impact groove away from the inner wall of the throttle valve body shell has a return groove. The side of the guide seat away from the inner wall of the throttle valve body shell has a guide surface. The support shaft is rotatably connected to the inner wall of the support main seat. The support main seat is located between the return seat and the guide seat.

[0016] As a preferred embodiment of the present invention, the page turning section includes a page body, and both outer walls of the page body are provided with closing grooves. Tension cavities are provided on the inner walls of the closing grooves. Flow grooves are provided on the outer walls of the tension cavities. Folding section one and folding section two are respectively provided at both ends of the tension cavities. An electromagnet is embedded in the inner cavity of the closing groove. A turning section a, a fitting section b, a fixing section c, and a fixing section d are respectively provided on the inner walls of the closing groove. A turning section e, a support section f, a magnetic attraction section g, and a support section h are respectively provided on the outer edge of the tension cavities. Folding section one and folding section two both have folding sections j in their bending areas.

[0017] As a preferred embodiment of the present invention, the positions of the first turning part a and the second turning part e are corresponding, and the tension cavity is rotatably connected to the closing groove through the second turning part e. The first folding part corresponds to the first supporting part f, and the second folding part corresponds to the second supporting part h. The closing groove and the tension cavity are connected through the first folding part and the second folding part. The magnetic attraction part g corresponds to the electromagnet, and b is disposed on the outer edge of the magnetic attraction part g. The tension cavity, the first folding part, and the second folding part are all made of rubber, and nylon ropes are intersected in the inner cavity of the rubber. The side of the magnetic attraction part g facing the electromagnet is the N pole.

[0018] The opening and closing control method for ultra-high pressure zero-leakage throttle valves based on pressure rating includes the following steps:

[0019] Step 1: Connect both ends of the throttle valve body shell to the pipeline respectively;

[0020] Step 2: When the equipment needs to be opened, rotate the handle to drive the second gear through the rotating shaft. The second gear meshes with the first and fourth gears. The fourth and first gears mesh with the third gear, causing the second gear to drive the lead screw to rotate clockwise through the first gear. By setting up a support rotating body, when the rotating shaft drives the second gear to rotate, the meshing relationship between the second gear and the first gear can be achieved by setting up the fourth and third gears that are rotatably connected to the support rotating body.

[0021] Step 3: By connecting the lead screw to the threaded groove, the movable pull frame moves towards the fixed frame by simultaneously driving two sets of pull rods, rotating seats, and semi-circular sealing plates through the pull plate. Both sets of semi-circular sealing plates are rotatably connected to one end of the limiting ring through a U-shaped plate, and the other end of the limiting ring is slidably connected to the support slide rail. When the two sets of semi-circular sealing plates move, their opposite ends can simultaneously retract towards the center end of the support slide rail. At the same time as the two sets of semi-circular sealing plates retract, the liquid flows. At this time, the pressure of the liquid flow puts pressure on the two sets of semi-circular sealing plates towards the center end of the support slide rail, thereby reducing the liquid pressure on the rotating shaft driven by the rotating handle and the lead screw driven by the rotating shaft. Thus, the force applied to open the equipment is reduced when the equipment is turned on, so as to facilitate the opening of the equipment.

[0022] Step 4: Simultaneously, as the movable pull frame moves towards the fixed frame, the protrusions at both ends of the movable pull frame structure allow several pressure sensors to receive movement signals. The controller's built-in program then controls the movement of the movable pull frame by identifying the direction of movement through the pressure sensors, thereby determining whether the equipment is open or closed. When the controller receives a signal from the pressure sensors that the equipment is open, it controls the hollow motor to run, causing the hollow motor to drive the meshing teeth to rotate. Through the meshing of the meshing teeth with the rotating shaft body, the driven gear drives the rotating blade to rotate counterclockwise by 5 degrees.

[0023] Step 5: By rotating several drive page structures counterclockwise by 5 degrees, and assembling them with the lead screw through the fixed round holes, the energy recovery component structure is driven to rotate clockwise by the impact force of the liquid. This further reduces the liquid pressure on the rotating shaft driven by the rotating handle and the lead screw driven by the rotating shaft, thereby further reducing the force applied to open the device when it is turned on.

[0024] Step 6: In the liquid flow state, the liquid is guided by the guide surface to the return slope, and then flows back through the return slope. The liquid impacts the impact groove through the return slope, and then rotates and sleeves with the inner wall of the support shaft and the support main seat. The impact force of the liquid on the impact groove is applied to the support shaft. In this way, the impact force on the end of the energy recovery component near the throttle valve body shell can be offset by the impact force of the liquid on the support shaft through the impact groove. Thus, when the energy recovery component rotates, the energy recovery component can achieve liquid suspension through the impact force of the liquid flow through the support main seat and the return seat, thereby reducing the friction between the support main seat and the return seat. At the same time, the support main seat and the support shaft are sleeved together to reinforce the energy recovery component.

[0025] Step 7: After both sets of semi-circular sealing plates are fully opened, the operator can control the electromagnet through the controller to make the electromagnet and the magnetic pole of the magnetic suction part g the same. Through the magnetic pole repulsion between the electromagnet and the magnetic suction part g, the tension chamber on the side where the driven gear drives the rotating blade to rotate in the same direction opens. Through the tension chamber, folding part one, folding part two, and the closing groove, a cavity is formed between the tension chamber, folding part one, folding part two, and the closing groove. When the liquid flows, it is blocked by this cavity, thereby further realizing the function of limiting the liquid speed. After the controller controls the energy recovery component to reset the energy recovery component and keep the outer wall of the rotating blade perpendicular to the central axis of the throttle valve body shell, the controller can simultaneously control the two sets of electromagnets, so that both cavities open through the magnetic pole repulsion between the electromagnet and the magnetic suction part g, further realizing speed limiting.

[0026] Step 8: Similarly, personnel can change the opening sequence of the energy recovery component and the semi-circular sealing plate to limit the flow rate of the two sets of cavities as the basic liquid flow rate, and then adjust the liquid flow rate finely by changing the opening size of the semi-circular sealing plate.

[0027] When the cavity formed between the tension chamber, folding part one, folding part two, and closing groove is no longer in use, the hollow motor is controlled by the controller to rotate, causing the hollow motor to drive the meshing teeth to rotate. Through the meshing of the meshing teeth with the rotating shaft body, the driven gear drives the rotating plate to rotate, keeping the outer wall of the rotating plate perpendicular to the central axis of the throttle valve body shell. The liquid flows from the turning part two e to the magnetic attraction part g, and then the liquid flow pressure makes the tension chamber fit with the closing groove. By changing the direction of the electromagnet's magnetic force, the electromagnet attracts the magnetic attraction part g, and the tension chamber closes through the magnetic force and the pressure generated by the liquid passing through point b.

[0028] The present invention has the following beneficial effects:

[0029] 1. This ultra-high pressure zero-leakage throttle valve based on pressure rating uses two sets of semi-circular sealing plates, each rotatably connected to one end of a limit ring via a U-shaped plate. The other end of the limit ring is slidably connected to a support slide rail. When the two sets of semi-circular sealing plates move, the guiding effect of the support slide rail and the limit ring allows their opposite ends to simultaneously retract towards the center end of the support slide rail. At this time, the two sets of semi-circular sealing plates form a V-shape. The pressure of the liquid is separated through the contact ends of the two sets of semi-circular sealing plates, thereby reducing the pressure exerted by the liquid on the two sets of semi-circular sealing plates and increasing the opening speed of the two sets of semi-circular sealing plates. This solves the problem of the low stress point of the traditional valve core during the movement process.

[0030] Simultaneously, the pressure of the liquid flow causes the two sets of semi-circular sealing plates to apply pressure to the center end of the support slide rail. This allows personnel to reduce the pressure by rotating the handle and moving the pull rod towards the fixed frame. As a result, when the equipment is turned on, the force exerted by the liquid on the two sets of semi-circular sealing plates is gradually reduced and strengthened, thereby increasing the opening speed of the two sets of semi-circular sealing plates.

[0031] On the other hand, by setting up a support slide rail, the two sets of semi-circular sealing plates can be supported and reinforced through this structure when the equipment is closed, so that the pressure on the two sets of semi-circular sealing plates can be further supported by the support slide rail.

[0032] Furthermore, by utilizing several pressure sensors, the movement of the movable bracket allows the pressure sensors to receive movement signals, thereby determining the opening or closing behavior of the equipment. The controller controls the hollow motor to operate, causing the hollow motor to drive the rotating blades to rotate counterclockwise through meshing teeth. By utilizing several drive blade structures to rotate counterclockwise, the energy recovery component changes to a "fan blade" mode. By using a fixed circular hole and a lead screw assembly, the impact force of the liquid on the energy recovery component causes the energy recovery component structure to drive the lead screw to rotate clockwise, thereby further reducing the liquid pressure on the rotating shaft driven by the rotating handle and the lead screw driven by the rotating shaft, thus further increasing the opening speed of the two sets of semi-circular sealing plates.

[0033] After the two sets of semi-circular sealing plates are fully opened, the liquid flows through the cavity to block the flow by the magnetic pole repulsion between the electromagnet and the magnetic attraction part g, thereby further limiting the liquid flow rate.

[0034] After the energy recovery component is reset, its controller can simultaneously control two sets of electromagnets, so that both cavities can open through the magnetic pole repulsion between the electromagnets and the magnetic attraction part g, thereby further limiting the speed.

[0035] Similarly, by changing the opening sequence of the energy recovery components and the semi-circular sealing plate, the speed limit of the two sets of chambers can be used as the basic liquid flow limit, and the liquid flow rate can be finely adjusted by changing the opening size of the semi-circular sealing plate.

[0036] Furthermore, in the liquid flow state, as shown in the figure, the impact force on the end of the energy recovery component near the throttle valve body shell can be offset by the impact force of the liquid on the impact groove and the support shaft. Thus, when the energy recovery component rotates, it can be suspended by the impact force of the liquid flow through the support main seat and the return seat, thereby reducing the friction between the support main seat and the return seat. At the same time, the support main seat is connected to the support shaft to reinforce the energy recovery component. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0038] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0039] Figure 3 This is a schematic diagram of the guide ring assembly structure of the present invention;

[0040] Figure 4 This is a schematic diagram of the circular groove structure of the present invention;

[0041] Figure 5 This is a schematic diagram of the energy recovery component structure of the present invention;

[0042] Figure 6 This is a schematic diagram of the unfolded structure of the energy recovery component of the present invention;

[0043] Figure 7 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0044] Figure 8 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B;

[0045] Figure 9 This is a schematic diagram of a partial structure of the support rail of the present invention;

[0046] Figure 10 This is a schematic diagram of the main structure of the page of this invention;

[0047] Figure 11 This is a schematic diagram of the tension cavity structure of the present invention;

[0048] Figure 12 This is a schematic diagram of the liquid flow direction in the main structure of the page of this invention;

[0049] Figure 13 This is a schematic diagram of the guide ring assembly structure of the present invention;

[0050] Figure 14 This is a schematic diagram of the liquid flow direction of the guide ring assembly of the present invention;

[0051] Figure 15 This is a partial schematic diagram of the guide ring assembly of the present invention.

[0052] In the diagram: 1. Throttling valve body shell; 2. Sealing tube; 3. Rotary handle; 4. Controller; 5. Control button; 6. Display screen; 7. Throttling valve groove; 8. Guide ring assembly; 9. Retaining ring; 10. Support slide rail; 11. Limiting ring; 12. Semi-circular sealing plate; 13. Arc groove; 14. U-shaped plate; 15. Rotary shaft hinge; 16. Rotary seat; 17. Pull rod; 18. Pull plate; 19. Moving pull bracket; 20. Threaded groove; 21. Lead screw; 22. Fixed frame; 23. Circular groove; 24. Energy recovery assembly; 25. First gear; 26. Second gear; 27. Rotating shaft; 28. Support rotating body; 29. ​​Third gear; 30. Fourth gear; 31. Support guide rail; 32. Pressure sensor;

[0053] 801. Return seat; 802. Flow guide seat; 803. Support main seat; 804. Flow guide surface; 805. Return slope; 806. Return groove; 807. Impact groove;

[0054] 2401. Support body; 2402. Fixing round hole; 2403. Mounting slot; 2404. Rotating slot; 2405. Meshing teeth; 2406. Collar; 2407. Meshing teeth; 2408. Rotating shaft body; 2409. Driven gear; 2410. Rotating plate; 2411. Supporting rotating shaft; 2412. Hollow motor; 2413. Motor rotating shaft;

[0055] 24101, Page body; 24102, Closing groove; 24103, Tension chamber; 24104, Flow groove; 24105, Folding part one; 24106, Folding part two; 24107, Electromagnet;

[0056] a. Turning part 1; b. Fitting part; c. Fixing part 1; d. Fixing part 2; e. Turning part 2; f. Support part 1; g. Magnetic suction part; h. Support part 2; j. Folding area. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] Please see Figure 1-15An ultra-high pressure zero-leakage throttle valve based on pressure rating includes a throttle valve body shell 1. A sealing tube 2 is fitted to the top outer wall of the throttle valve body shell 1, and a rotating handle 3 is located at the top of the sealing tube 2. A controller 4 is fitted to the top outer wall of the throttle valve body shell 1, and control buttons 5 and a display screen 6 are embedded in the top outer wall of the controller 4. A throttle valve groove 7 is formed on the inner wall of the throttle valve body shell 1. A guide ring assembly 8 and a retaining ring 9 are fitted to the inner wall of the throttle valve groove 7. A support slide rail 10 is fitted to the inner wall of the retaining ring 9, and a limit ring 11 is slidably connected to the inner wall of the support slide rail 10. A semi-circular sealing plate 12 is provided on the side of the support slide rail 10 near the guide ring assembly 8, and an arc-shaped groove 13 is formed on the outer wall of the side of the semi-circular sealing plate 12 near the retaining ring 9. The inner wall of the valve is fitted with a U-shaped plate 14. A pivot hinge 15 is fitted on the outer edge of the semi-circular sealing plate 12 away from the arc groove 13. A rotating seat 16 is fitted on the outer wall of the semi-circular sealing plate 12 away from the retaining ring 9. One end of a pull rod 17 is rotatably connected to the inner wall of the rotating seat 16. The other end of the pull rod 17 is rotatably connected to a pull plate 18. A movable pull bracket 19 is fitted on the outer wall of the pull plate 18 away from the pull rod 17. A threaded groove 20 is opened on the outer wall of the center of the movable pull bracket 19. A screw rod 21 is threadedly connected to the inner wall of the threaded groove 20. A support guide rail 31 is fitted on the inner wall of the throttle valve groove 7. A fixing frame 22 is fitted on the inner wall of the support guide rail 31 near the guide ring assembly 8. A circular groove 23 is opened on the outer edge of the center of the fixing frame 22. An energy recovery assembly 24 is provided on the outer edge of the screw rod 21.

[0059] Among them, the end of the lead screw 21 away from the threaded groove 20 is equipped with a circular groove 23, and the outer edge of the circular groove 23 is respectively meshed with the second gear 26 and the third gear 29. The inner cavity of the second gear 26 is provided with a rotating shaft 27, the bottom of the rotating shaft 27 is rotatably connected to a supporting rotating body 28, the side of the supporting rotating body 28 away from the first gear 25 is rotatably connected to a fourth gear 30, and the top of the supporting guide rail 31 is inlaid with a pressure sensor 32.

[0060] The energy recovery assembly 24 includes a support body 2401. A fixing circular hole 2402 is provided on the outer wall of the support body 2401 near the rotating shaft 27. A rotating groove 2404 is provided on the outer wall of the support body 2401 away from the rotating shaft 27. A mounting groove 2403 is provided on the outer edge of the support body 2401. A rotating shaft body 2408 is rotatably connected to the inner wall of the mounting groove 2403. A driven gear 2409 is mounted on the outer edge of the rotating shaft body 2408. A rotating blade 2410 is mounted on the end of the rotating shaft body 2408 away from the support body 2401.

[0061] Among them, the outer wall of the rotating page 2410 away from the rotating shaft body 2408 is equipped with a supporting rotating shaft 2411, the inner wall of the rotating groove 2404 is rotatably connected with a meshing tooth 2405, the outer edge of the meshing tooth 2405 is provided with a meshing tooth 2407, the inner edge of the meshing tooth 2405 is equipped with a collar 2406, the outer wall of the meshing tooth 2405 away from the supporting body 2401 is equipped with a hollow motor 2412, and the inner cavity of the hollow motor 2412 is provided with a motor rotating shaft 2413.

[0062] The rotating shaft body 2408 and the supporting rotating shaft 2411 are coaxially arranged, and the rotating shaft body 2408, the driven gear 2409, the rotating page 2410 and the supporting rotating shaft 2411 form a driving page structure. All of these structures are fixed by welding. The driven gear 2409 meshes with the meshing gear 2407. Several driving page structures are arranged in a ring in the inner wall of the mounting groove 2403.

[0063] The energy recovery component 24 is assembled with the lead screw 21 through the fixed circular hole 2402. The meshing teeth 2405, the collar 2406 and the meshing teeth 2407 form a transmission structure. The transmission structure is rotatably connected to the inner wall of the rotating groove 2404 through the collar 2406. The hollow motor 2412 and the motor shaft 2413 form a drive structure. The drive structure is assembled with the lead screw 21 through the motor shaft 2413. The input and output ends of the hollow motor 2412 are both electrically connected to the controller 4.

[0064] The page turning mechanism 2410 includes a page body 24101. Closing grooves 24102 are provided on both outer walls of the page body 24101. Tension chambers 24103 are provided on the inner walls of the closing grooves 24102. Flow grooves 24104 are provided on the outer walls of the tension chambers 24103. Folding part one 24105 and folding part two 24106 are provided at both ends of the tension chambers 24103. An electromagnet 24107 is embedded in the inner cavity of the closing groove 24102. A turning part one a, a fitting part b, a fixing part one c, and a fixing part two d are provided on the inner walls of the closing groove 24102. A turning part two e, a support part one f, a magnetic attraction part g, and a support part two h are provided on the outer edges of the tension chambers 24103. Folding area j is provided in the bending areas of folding part one 24105 and folding part two 24106.

[0065] Among them, the positions of the first turning part a and the second turning part e are corresponding, and the tension cavity 24103 is rotatably connected to the closing groove 24102 through the second turning part e. The first folding part 24105 corresponds to the first support part f, and the second folding part 24106 corresponds to the second support part h. The closing groove 24102 and the tension cavity 24103 are connected through the first folding part 24105 and the second folding part 24106. The magnetic attraction part g corresponds to the electromagnet 24107. b is set on the outer edge of the magnetic attraction part g. The tension cavity 24103, the first folding part 24105 and the second folding part 24106 are all made of rubber, and nylon ropes are intersected in the inner cavity of the rubber. The side of the magnetic attraction part g facing the electromagnet 24107 is the N pole.

[0066] It should be noted that the controller 4 controls the hollow motor 2412 to operate, so that the hollow motor 2412 drives the meshing gear 2405 to rotate. Through the meshing of the meshing gear 2407 with the rotating shaft body 2408, the driven gear 2409 drives the rotating page 2410 to rotate counterclockwise by 5 degrees.

[0067] After the two sets of semi-circular sealing plates 12 are fully opened, the personnel can control the electromagnet 24107 through the controller 4 to make the electromagnet 24107 and the magnetic pole of the magnetic suction part g the same. Through the magnetic pole repulsion between the electromagnet 24107 and the magnetic suction part g, the driven gear 2409 drives the tension chamber 24103 on the side with the same rotation direction as the rotating page 2410 to open. The tension chamber 24103, the first folding part 24105 and the second folding part 24106 form a cavity between the tension chamber 24103, the first folding part 24105 and the second folding part 24106 and the closing groove 24102, so that when the liquid flows, it is blocked through the cavity.

[0068] The rotating handle 3 is assembled to the top of the rotating shaft 27, the rotating shaft 27 is rotatably connected to the inner cavity of the sealing tube 2, there are two semi-circular sealing plates 12, and the two semi-circular sealing plates 12 form a complete circle. The rotating seats 16 and the pull rods 17 set on the outer walls of the two sets of semi-circular sealing plates 12 are symmetrically arranged, and the two sets of pull rods 17 are rotatably connected to the two ends of the pull plate 18 respectively.

[0069] Both sets of semi-circular sealing plates 12 are rotatably connected to one end of the limiting ring 11 via U-shaped plate 14. The limiting ring 11 is provided with a bearing on the outer edge of one end of the inner wall of the support slide rail 10. The threaded groove 20 is threadedly connected to the lead screw 21. The lead screw 21 is rotatably connected to the fixed frame 22 via the circular groove 23.

[0070] It should be noted that by connecting the lead screw 21 to the threaded groove 20, the movable pull bracket 19 can simultaneously drive the two sets of pull rods 17, the rotating seat 16 and the semi-circular sealing plate 12 to move towards the fixed frame 22 via the pull plate 18. Both sets of semi-circular sealing plates 12 are rotatably connected to one end of the limiting ring 11 via the U-shaped plate 14, and the other end of the limiting ring 11 is slidably connected to the support slide rail 10, so that when the two sets of semi-circular sealing plates 12 move, their opposite ends can simultaneously retract towards the center end of the support slide rail 10.

[0071] The pressure sensor 32 is a plurality of pressure sensors 32, and a plurality of support rails 31 are arranged in a linear array on the top of the support rails 31. The pressure sensors 32 are electrically connected to the controller 4 in parallel. The two ends of the movable pull bracket 19 are provided with protrusions where they contact the pressure sensors 32.

[0072] It should be noted that when the movable bracket 19 moves toward the fixed frame 22, the protrusions at both ends of the movable bracket 19 structure enable several pressure sensors 32 to receive movement signals through the movement of the movable bracket 19. The built-in program of the controller 4 controls the movement direction of the movable bracket 19 by identifying the pressure sensors 32, thereby determining whether the equipment is turned on or off.

[0073] Among them, the supporting rotating body 28 is coaxially arranged with the circular groove 23 and the fourth gear 30, and the supporting rotating body 28 is coaxially arranged with the rotating shaft 27 and the third gear 29. The supporting rotating body 28 is rotatably connected with the first gear 25, the second gear 26, the third gear 29 and the fourth gear 30.

[0074] It should be noted that by rotating the handle 3, the handle 3 drives the second gear 26 to rotate via the rotating shaft 27. The second gear 26 meshes with the first gear 25 and the fourth gear 30. The fourth gear 30 and the first gear 25 both mesh with the third gear 29, so that the second gear 26 drives the lead screw 21 to rotate clockwise via the first gear 25. When the rotating shaft 27 drives the second gear 26 to rotate by setting the support rotating body 28, the meshing relationship between the second gear 26 and the first gear 25 can be supported by the fourth gear 30 and the third gear 29 which are rotatably connected to the support rotating body 28.

[0075] The guide ring assembly 8 includes a return seat 801, a guide seat 802, and a support main seat 803. The outer wall of the return seat 801 near the guide seat 802 has a return slope 805. The outer wall of the support main seat 803 near the return seat 801 has an impact groove 807. The side of the impact groove 807 away from the inner wall of the throttle valve body shell 1 has a return groove 806. The side of the guide seat 802 away from the inner wall of the throttle valve body shell 1 has a guide surface 804. The support shaft 2411 is rotatably connected to the inner wall of the support main seat 803. The support main seat 803 is located between the return seat 801 and the guide seat 802.

[0076] It should be noted that the liquid is guided by the guide surface 804 to the return slope 805, and then returns through the return slope 805. The liquid impacts the impact groove 807 through the return slope 805, and then rotates and engages with the inner wall of the support main seat 803 through the support shaft 2411. The impact force of the liquid on the impact groove 807 is applied to the support shaft 2411. Thus, the impact force on the end of the energy recovery component 24 near the throttle valve body shell 1 can be offset by the impact force of the liquid on the support shaft 2411 through the impact groove 807. As a result, when the energy recovery component 24 rotates, it can be suspended by the impact force of the liquid flow through the support main seat 803 and the return seat 801, thereby reducing the friction between the support main seat 803 and the return seat 801. At the same time, the support main seat 803 reinforces the energy recovery component 24 by engaging with the support shaft 2411.

[0077] The opening and closing control method for ultra-high pressure zero-leakage throttle valves based on pressure rating includes the following steps:

[0078] Step 1: Connect both ends of the throttle valve body shell 1 to the pipeline respectively;

[0079] Step 2: When the device needs to be opened, rotate the handle 3, which drives the second gear 26 to rotate via the rotating shaft 27. The second gear 26 meshes with the first gear 25 and the fourth gear 30. The fourth gear 30 and the first gear 25 both mesh with the third gear 29, so that the second gear 26 drives the lead screw 21 to rotate clockwise via the first gear 25. By setting up the support rotating body 28, when the rotating shaft 27 drives the second gear 26 to rotate, the meshing relationship between the second gear 26 and the first gear 25 can be supported by the fourth gear 30 and the third gear 29, which are rotatably connected to the support rotating body 28.

[0080] Step 3: The screw 21 is threadedly connected to the threaded groove 20, so that the movable pull frame 19 can move towards the fixed frame 22 by simultaneously driving the two sets of pull rods 17, the rotating seat 16 and the semi-circular sealing plate 12 through the pull plate 18. The two sets of semi-circular sealing plates 12 are rotatably connected to one end of the limiting ring 11 through the U-shaped plate 14, and the other end of the limiting ring 11 is slidably connected to the support slide rail 10. When the two sets of semi-circular sealing plates 12 move, their opposite ends can simultaneously retract towards the center end of the support slide rail 10. At the same time as the two sets of semi-circular sealing plates 12 retract, the liquid can flow. At this time, the pressure of the liquid flow causes the two sets of semi-circular sealing plates 12 to apply pressure to the center end of the support slide rail 10, thereby reducing the liquid pressure on the rotating handle 3 to drive the rotating shaft 27 and the screw 21 to rotate through the rotating shaft 27. Thus, the force applied to open the equipment is reduced when the equipment is opened, so as to facilitate the opening of the equipment.

[0081] Step 4: Simultaneously, as the movable pull frame 19 moves towards the fixed frame 22, the protrusions at both ends of the movable pull frame 19 allow several pressure sensors 32 to receive movement signals. The controller 4's built-in program controls the movement direction of the movable pull frame 19 through the pressure sensors 32, thereby determining whether the equipment is open or closed. When the controller 4 receives a signal from the pressure sensors 32 that the equipment is open, it controls the hollow motor 2412 to operate, causing the hollow motor 2412 to drive the meshing gear 2405 to rotate. The meshing gear 2407 engages with the rotating shaft body 2408, causing the driven gear 2409 to drive the rotating page 2410 to rotate counterclockwise by 5 degrees.

[0082] Step 5: By rotating several drive page structures counterclockwise by 5 degrees, and assembling them with the lead screw 21 through the fixed round hole 2402, the energy recovery component 24 structure drives the lead screw 21 to rotate clockwise through the impact force of the liquid, thereby further reducing the liquid pressure on the rotating shaft 27 driven by the rotating handle 3 and the lead screw 21 driven by the rotating shaft 27, thus further reducing the force applied to open the device when it is turned on;

[0083] Step 6: In a liquid flow state, such as Figure 14As shown, the liquid is guided by the guide surface 804 to the return slope 805, and then returns through the return slope 805. The liquid impacts the impact groove 807 through the return slope 805, and then rotates and sleeves with the inner wall of the support main seat 803 through the support shaft 2411. The impact force of the liquid on the impact groove 807 is applied to the support shaft 2411. Thus, the impact force on the end of the energy recovery component 24 near the throttle valve body shell 1 can be offset by the impact force of the liquid on the support shaft 2411 through the impact groove 807. Thus, when the energy recovery component 24 rotates, the energy recovery component 24 can be suspended by the impact force of the liquid flow through the support main seat 803 and the return seat 801, thereby reducing the friction between the support main seat 803 and the return seat 801. At the same time, the support main seat 803 and the support shaft 2411 are sleeved together, so that the support main seat 803 reinforces the energy recovery component 24.

[0084] Step 7: After both sets of semicircular sealing plates 12 are fully opened, personnel can control the electromagnet 24107 via the controller 4 to make the electromagnet 24107 and the magnetic attraction part g have the same magnetic poles. Through the magnetic pole repulsion between the electromagnet 24107 and the magnetic attraction part g, the driven gear 2409 drives the page 2410 to rotate in the same direction, causing the tension chamber 24103 on the side that is in the same direction to open. The tension chamber 24103, the first folding part 24105, and the second folding part 24106 are then connected to the tension chamber 24103, the first folding part 24105, and the second folding part 24106. A cavity is formed between 24106 and the closed groove 24102, which acts as a barrier when liquid flows, thereby further limiting the liquid flow rate. When the controller 4 controls the energy recovery component 24 to reset the energy recovery component 24 and keep the outer wall of the rotating page 2410 perpendicular to the central axis of the throttle valve body shell 1, the controller 4 can simultaneously control two sets of electromagnets 24107, so that both cavities open through the magnetic pole repulsion force between the electromagnets 24107 and the magnetic attraction part g, further limiting the flow rate.

[0085] Step 8: Similarly, personnel can change the opening sequence of the energy recovery component 24 and the semi-circular sealing plate 12 to limit the flow rate of the two sets of cavities as the basic liquid flow rate, and then adjust the liquid flow rate finely by changing the opening size of the semi-circular sealing plate 12.

[0086] When the cavity formed between the tension chamber 24103, the first folding part 24105, the second folding part 24106, and the closing groove 24102 is no longer in use, the hollow motor 2412 is controlled by the controller 4 to operate, so that the hollow motor 2412 drives the meshing teeth 2405 to rotate. Through the meshing of the meshing teeth 2407 with the rotating shaft body 2408, the driven gear 2409 drives the rotating page 2410 to rotate, so that the outer wall of the rotating page 2410 is perpendicular to the central axis of the throttle valve body shell 1, and the liquid flows from the second turning part e to the magnetic attraction part g. Then, the liquid flow pressure makes the tension chamber 24103 fit with the closing groove 24102, and by changing the magnetic direction of the electromagnet 24107, the electromagnet 24107 attracts the magnetic attraction part g, so that the tension chamber 24103 is closed by the magnetic force and the pressure generated by the liquid passing through point b.

[0087] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0088] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A zero-leakage throttle valve based on pressure rating, comprising a throttle valve body housing (1), characterized in that: The top outer wall of the throttle valve body shell (1) is fitted with a sealing tube (2), and a rotating handle (3) is provided on the top of the sealing tube (2). The top outer wall of the throttle valve body shell (1) is fitted with a controller (4), and the top outer wall of the controller (4) is respectively inlaid with control buttons (5) and a display screen (6). The inner wall of the throttle valve body shell (1) is provided with a throttle valve groove (7), and the inner wall of the throttle valve groove (7) is respectively fitted with a guide ring assembly (8) and a retaining ring (9). The inner wall of the retaining ring (9) is fitted with a support slide rail (10), and the inner wall of the support slide rail (10) is slidably connected with a limit ring (11). A semi-circular sealing plate (12) is provided on the side of the support slide rail (10) near the guide ring assembly (8). An arc-shaped groove (13) is provided on the outer wall of the semi-circular sealing plate (12) near the retaining ring (9). A U-shaped plate (14) is fitted on the inner wall of the arc-shaped groove (13). A pivot hinge (15) is fitted on the outer edge of the sealing plate (12) away from the arc groove (13). A rotating seat (16) is fitted on the outer wall of the semi-circular sealing plate (12) away from the retaining ring (9). One end of a pull rod (17) is rotatably connected to the inner wall of the rotating seat (16). The other end of the pull rod (17) is rotatably connected to a pull plate (18). A movable pull bracket (19) is fitted on the outer wall of the pull plate (18) away from the pull rod (17). A threaded groove (20) is provided on the outer wall of the center of the frame (19). A screw (21) is threadedly connected to the inner wall of the threaded groove (20). A support rail (31) is installed on the inner wall of the throttle valve groove (7). A fixing frame (22) is installed on the inner wall of the support rail (31) near the guide ring assembly (8). A circular groove (23) is provided on the outer edge of the center of the fixing frame (22). An energy recovery assembly (24) is provided on the outer edge of the screw (21).

2. The ultra-high pressure zero-leakage throttling valve based on pressure rating according to claim 1, characterized in that: The lead screw (21) is fitted with a circular groove (23) at the end away from the threaded groove (20). The outer edge of the circular groove (23) is respectively meshed with a second gear (26) and a third gear (29). The inner cavity of the second gear (26) is provided with a rotating shaft (27). The bottom of the rotating shaft (27) is rotatably connected to a supporting rotating body (28). The side of the supporting rotating body (28) away from the first gear (25) is rotatably connected to a fourth gear (30). The top of the supporting guide rail (31) is inlaid with a pressure sensor (32). The energy recovery assembly (24) includes a support body (2401). A fixed circular hole (2402) is provided on the outer wall of the support body (2401) near the rotating shaft (27). A rotating groove (2404) is provided on the outer wall of the support body (2401) away from the rotating shaft (27). An installation rotating groove (2403) is provided on the outer edge of the support body (2401). A rotating shaft body (2408) is rotatably connected to the inner wall of the installation rotating groove (2403). A driven gear (2409) is assembled on the outer edge of the rotating shaft body (2408). A rotating blade (2410) is assembled on the end of the rotating shaft body (2408) away from the support body (2401).

3. The ultra-high pressure zero-leakage throttling valve based on pressure rating according to claim 1, characterized in that: The rotating handle (3) is assembled at the top of the rotating shaft (27), the rotating shaft (27) is rotatably connected to the inner cavity of the sealing tube (2), there are two semi-circular sealing plates (12), and the two semi-circular sealing plates (12) form a complete circle. The rotating seats (16) and pull rods (17) provided on the outer walls of the two sets of semi-circular sealing plates (12) are symmetrically arranged, and the two sets of pull rods (17) are rotatably connected to the two ends of the pull plate (18) respectively.

4. The ultra-high pressure zero-leakage throttling valve based on pressure rating according to claim 1, characterized in that: Both sets of semi-circular sealing plates (12) are rotatably connected to one end of the limiting ring (11) through a U-shaped plate (14). The limiting ring (11) is provided with a bearing on the outer edge of one end of the inner wall of the support slide rail (10). The threaded groove (20) is threadedly connected to the lead screw (21). The lead screw (21) is rotatably connected to the fixing frame (22) through a circular groove (23).

5. The ultra-high pressure zero-leakage throttling valve based on pressure rating according to claim 2, characterized in that: The pressure sensors (32) are a number of several, and a number of support rails (31) are arranged in a linear array on the top of the support rails (31). The pressure sensors (32) are electrically connected to the controller (4) in parallel. The two ends of the movable pull bracket (19) are provided with protrusions where they contact the pressure sensors (32).

6. The ultra-high pressure zero-leakage throttling valve based on pressure rating according to claim 2, characterized in that: The supporting rotating body (28) is coaxial with the circular groove (23) and the fourth gear (30). At the same time, the supporting rotating body (28) is coaxial with the rotating shaft (27) and the third gear (29). The supporting rotating body (28) is rotatably connected to the first gear (25), the second gear (26), the third gear (29) and the fourth gear (30).

7. The ultra-high pressure zero-leakage throttling valve based on pressure rating according to claim 2, characterized in that: The outer wall of the rotating page (2410) away from the rotating shaft body (2408) is equipped with a supporting rotating shaft (2411). The inner wall of the rotating groove (2404) is rotatably connected with a meshing tooth (2405). The outer edge of the meshing tooth (2405) is provided with a meshing tooth (2407). The inner edge of the meshing tooth (2405) is equipped with a collar (2406). The outer wall of the meshing tooth (2405) away from the supporting body (2401) is equipped with a hollow motor (2412). The inner cavity of the hollow motor (2412) is provided with a motor rotating shaft (2413).

8. The ultra-high pressure zero-leakage throttling valve based on pressure rating according to claim 7, characterized in that: The guide ring assembly (8) includes a return seat (801), a guide seat (802), and a support main seat (803). The return seat (801) has a return slope (805) on the outer wall near the guide seat (802). The support main seat (803) has an impact groove (807) on the outer wall near the return seat (801). The impact groove (807) has a return groove (806) on the side away from the inner wall of the throttle valve body shell (1). The guide seat (802) has a guide surface (804) on the side away from the inner wall of the throttle valve body shell (1). The support shaft (2411) is rotatably connected to the inner wall of the support main seat (803). The support main seat (803) is located between the return seat (801) and the guide seat (802).

9. The ultra-high pressure zero-leakage throttling valve based on pressure rating according to claim 7, characterized in that: The page turner (2410) includes a page body (24101), and both outer walls of the page body (24101) are provided with closing grooves (24102). Tension chambers (24103) are provided on the inner walls of the closing grooves (24102). Flow grooves (24104) are provided on the outer walls of the tension chambers (24103). Folding section one (24105) and folding section two (24104) are respectively provided at both ends of the tension chambers (24103). 106), the inner cavity of the closed groove (24102) is inlaid with an electromagnet (24107), the inner wall of the closed groove (24102) is respectively provided with a turning part a, a fitting part b, a fixing part c and a fixing part d, the outer edge of the tension cavity (24103) is respectively provided with a turning part e, a supporting part f, a magnetic part g and a supporting part h, and the bending areas of the folding part a (24105) and the folding part b (24106) are both provided with a folding area j; The positions of the first turning part a and the second turning part e are corresponding, and the tension cavity (24103) is rotatably connected to the closing groove (24102) through the second turning part e. The first folding part (24105) corresponds to the first support part f, and the second folding part (24106) corresponds to the second support part h. The closing groove (24102) and the tension cavity (24103) are connected through the first folding part (24105) and the second folding part (24106). The magnetic attraction part g corresponds to the electromagnet (24107). b is set on the outer edge of the magnetic attraction part g. The tension cavity (24103), the first folding part (24105) and the second folding part (24106) are all made of rubber, and nylon ropes are intersected in the inner cavity of the rubber. The side of the magnetic attraction part g facing the electromagnet (24107) is the N pole.

10. A method for controlling the opening and closing of an ultra-high pressure zero-leakage throttle valve based on pressure level, characterized in that, Includes the following steps: Step 1: When it is necessary to open the equipment, turn the handle (3) to make the second gear (26) drive the lead screw (21) to rotate clockwise through the first gear (25); Step 3: The movable pull frame (19) moves towards the fixed frame (22) by simultaneously driving the two sets of pull rods (17), the rotating seat (16) and the semi-circular sealing plate (12) through the pull plate (18). The two sets of semi-circular sealing plates (12) are rotatably connected to one end of the limiting ring (11) through the U-shaped plate (14). The opposite ends of the two sets of semi-circular sealing plates (12) can simultaneously retract towards the center end of the support slide rail (10), and the liquid can flow. At this time, the pressure of the liquid flow causes the two sets of semi-circular sealing plates (12) to apply pressure to the center end of the support slide rail (10). Step 4: When the movable pull frame (19) moves towards the fixed frame (22), the protrusions at both ends of the movable pull frame (19) allow several pressure sensors (32) to receive the movement signal through the movement of the movable pull frame (19). The controller (4) controls the movement direction of the movable pull frame (19) through the pressure sensors (32) to determine the opening or closing behavior of the equipment. The controller (4) controls the hollow motor (2412) to run, so that the hollow motor (2412) drives the meshing teeth (2405) to rotate. Through the meshing teeth (2407) and the rotating shaft body (2408), the driven gear (2409) drives the rotating page (2410) to rotate counterclockwise by 5 degrees. Step 5: By rotating several drive page structures counterclockwise by 5 degrees, the energy recovery component (24) structure drives the lead screw (21) to rotate clockwise through the impact force of the liquid; Step 6: In the liquid flow state, the liquid is guided by the guide surface (804) to the return slope (805), and returns through the return slope (805). The liquid impacts the impact groove (807) through the return slope (805), and then rotates and engages with the inner wall of the support main seat (803) through the support shaft (2411). The impact force of the liquid on the impact groove (807) is applied to the support shaft (2411), thereby allowing the impact force on the end of the energy recovery component (24) near the throttle valve body shell (1) to be absorbed through the liquid. The impact force of the impact groove (807) on the support shaft (2411) is offset by the body, so that when the energy recovery component (24) rotates, the energy recovery component (24) can be suspended by the impact force of the liquid flow through the support main seat (803) and the return seat (801), thereby reducing the friction between the support main seat (803) and the return seat (801). At the same time, the support main seat (803) is sleeved with the support shaft (2411) to reinforce the energy recovery component (24). Step 7: Control the electromagnet (24107) through the controller (4) so ​​that the electromagnet (24107) and the magnetic pole of the magnetic attraction part g are the same. Through the magnetic pole repulsion between the electromagnet (24107) and the magnetic attraction part g, the tension chamber (24103) on the side where the driven gear (2409) drives the rotating page (2410) to rotate in the same direction opens. Through the tension chamber (24103), the first fold (24105), and the second fold (24106), a cavity is formed between the tension chamber (24103), the first fold (24105), the second fold (24106), and the closing groove (24102). When the liquid flows, it is blocked by the cavity, thereby achieving the function of further limiting the liquid speed.

Images