A pressure vessel inner cavity measuring and detecting instrument

Abstract

This invention discloses a pressure vessel internal cavity measurement and testing instrument, belonging to the technical field of pressure vessel testing equipment. It includes a pressure vessel body and a testing equipment body. The testing equipment body includes a shell and a measuring component for measuring the diameter and roundness of the inner wall of the pressure vessel body. The measuring component includes an adjusting seat for measuring the inner diameter and folding rods arranged circumferentially on the outer wall of the adjusting seat. A triggering component is installed at the tail end of the folding rods for pressing against the inner wall of the pressure vessel body. An adjusting component for driving the folding rods to unfold is installed inside the adjusting seat. The measuring component also includes a mounting box installed at one end of the adjusting seat's axis for measuring the roundness of the pressure vessel body. Through the designed measuring component, response component, and triggering component, the inner diameter and roundness of the inner wall of the pressure vessel body can be measured, and the location and deformation of depressions and protrusions on the inner wall of the pressure vessel body can be accurately measured, facilitating maintenance by personnel.

Description

Technical Field

[0001] This invention relates to the field of pressure vessel testing equipment technology, specifically a pressure vessel internal cavity measuring and testing instrument. Background Technology

[0002] Pressure vessels are closed containers that withstand pressure loads and contain gas or liquid. In petrochemical and other mechanical equipment, pressure vessels are an indispensable device. Their quality and performance are directly related to the efficiency and development of enterprises. Therefore, the manufacturing, production and inspection of pressure vessels should be given high priority.

[0003] However, current pressure vessel cavity testing equipment has certain limitations, mainly focusing on measuring inner diameter dimensions, while lacking the ability to accurately detect the vessel's roundness parameters. When local depressions or bulges appear on the vessel wall, these geometric defects disrupt the uniformity of the vessel structure, leading to unbalanced stress distribution and ultimately significantly reducing the vessel's pressure-bearing capacity and the safety of media storage. Therefore, this invention provides a pressure vessel cavity measurement and testing instrument to solve the aforementioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a pressure vessel internal cavity measurement and testing instrument to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pressure vessel internal cavity measurement and testing instrument includes a pressure vessel body and a testing equipment body. The testing equipment body includes a shell and a measuring component for measuring the diameter and roundness of the inner wall of the pressure vessel body. The measuring component includes an adjusting seat for measuring the inner diameter and folding rods arranged circumferentially on the outer wall of the adjusting seat. A triggering component for pressing against the inner wall of the pressure vessel body is installed at the tail end of the folding rods. An adjusting component for driving the folding rods to unfold is installed inside the adjusting seat. The measuring component also includes a mounting box installed at one end of the adjusting seat's axis for measuring the roundness of the pressure vessel body. A response component for driving current changes through the triggering component is installed inside the mounting box. A main control box for control is installed inside the shell. A first connecting rod is fixedly connected to one end of the main control box. A steering component for assisting the rotation of the measuring component is installed at the end of the first connecting rod away from the shell. A control component for adjusting the steering component is installed on the outer wall of the first connecting rod near the shell. A driving component for driving the measuring component to rotate and extend is installed on the steering component. The driving component is bolted to the end of the mounting box away from the adjusting seat.

[0007] As a further embodiment of the present invention, the adjustment assembly includes a servo motor, a drive gear, a connecting shaft, and a third pulley. The servo motor is installed at the end of the adjustment seat away from the mounting box. The drive gear is rotatably connected to the inner wall of the adjustment seat and installed at the output end of the servo motor. The connecting shaft is rotatably connected to the inner wall of the adjustment seat in a circumferential arrangement. A driven gear and a fifth rotating disk are installed on the outer wall of the connecting shaft. The driven gear meshes with the outer wall of the drive gear. The folding rod is composed of multiple folding plates that are rotatably connected end to end to form an integral structure. A rotating pin is fixedly connected to both ends of the folding plate. The rotating pin is rotatably connected to the inner wall of another folding plate. A sixth rotating disk is fixedly connected to both ends of the outer wall of the rotating pin. The third pulley is installed on the sixth rotating disk at both ends of the folding plate. The third pulley is also installed on the outer wall of the sixth rotating disk on the folding plate near the adjustment seat and the fifth rotating disk.

[0008] As a further embodiment of the present invention, the triggering assembly includes a trigger seat, a first piston plate, and a ball bearing. The trigger seat is fixedly connected to the outer wall of the folding rod at the end away from the adjusting seat. The first piston plate is slidably connected to the inner wall of the trigger seat. A second connecting rod is fixedly connected to the top axis of the first piston plate. The ball bearing is rotatably connected to the inner wall of the second connecting rod. A water pipe for water delivery is fixedly connected to the bottom of the trigger seat. The drive gear passes through the folding rod and the adjusting seat and extends to the inner wall of the mounting box.

[0009] As a further embodiment of the present invention, the response component includes a positive electrode plate, a negative electrode plate, and an regulating tube. A water storage tank for storing aqueous solution is fixedly connected to the inner wall of the mounting box. A water pipe is connected to the inner wall of the water storage tank. The positive electrode plate is installed on the side of the mounting box away from the water storage tank. A telescopic component is installed at one end of the positive electrode plate. The negative electrode plate is fixedly connected to the other end of the telescopic component. The regulating tube is connected to the water storage tank. A second piston plate is slidably connected to the inner wall of the regulating tube. An mounting plate is installed on the outer wall of the water storage tank at the bottom of the regulating tube. A heating tube for heating is installed on the top outer wall of the mounting plate at the bottom of the regulating tube.

[0010] As a further embodiment of the present invention, the steering assembly includes a rotating seat and a connecting block. The rotating seat is fixedly connected to the axis of the first connecting rod at the end away from the outer shell. The inner wall of the rotating seat is rotatably connected to a first rotating rod. The connecting block is fixedly connected to both ends of the first rotating rod. A first rotating disk is fixedly connected to the middle position of the outer wall of the first rotating rod. A second pulley is installed on the outer wall of the first rotating disk.

[0011] As a further embodiment of the present invention, the control assembly includes a control box, a second rotating rod, and a third rotating disk. The third rotating disk is fixedly connected to the side of the first connecting rod near the main control box, and the third rotating disk is rotatably connected to the bottom of the control box. A second pulley is installed on the outer wall of the third rotating disk, and a second rotating rod is installed on the inner wall of the third rotating disk.

[0012] As a further embodiment of the present invention, the drive assembly includes a bidirectional motor, a drive base, a multi-stage telescopic rod, and a first drive disc. The bidirectional motor is mounted on the outer wall of one side of the connecting block, the drive base is fixedly connected to the outer wall of the bidirectional motor, the first drive disc is rotatably connected to the end of the drive base away from the bidirectional motor, the multi-stage telescopic rod is fixedly connected to one end of the first drive disc, the other end of the multi-stage telescopic rod is fixedly connected to one end of the mounting box, and a binding block is installed on the inner wall of the tail end of the multi-stage telescopic rod, with a pull rope wound around the binding block through a hole.

[0013] As a further embodiment of the present invention, a second driving disk is rotatably connected to the inner ring of the first driving disk, a third driving disk is rotatably connected to the inner ring of the second driving disk, a transmission shaft is rotatably connected to the output end of the bidirectional motor, a connecting disk is fixedly connected to the axis position of the tail end of the transmission shaft, the connecting disk is in contact with the first driving disk, and the first driving disk and the third driving disk are respectively provided with a plurality of first locking grooves and second locking grooves arranged in a circle for locking on the side near the second driving disk, and a plurality of adjustment grooves arranged in a circle are provided on the outer wall of the second driving disk.

[0014] As a further embodiment of the present invention, a connecting block is slidably connected to the side of the connecting plate near the first driving plate, and an adjusting block is fixedly connected to the outer wall of one side of the connecting block. The adjusting block is slidably connected to the inner wall of the adjusting groove, and fastening blocks are slidably connected to both ends of the adjusting block. The fastening blocks are adapted to the first locking groove and the second locking groove.

[0015] As a further embodiment of the present invention, a fixing plate is fixedly connected to the outer wall of the second motor frame on the bidirectional motor. A winding roller is rotatably connected to the bottom of the fixing plate. A transmission gear is fixedly connected to the axial position of the top of the winding roller. A connecting column is fixedly connected to the axial position of the third drive disc. The pull rope passes through the connecting column and is fixedly wrapped around the outer wall of the winding roller. A sliding seat is fixedly connected to one end of the fixing plate near the connecting column. A gear rack is slidably connected inside the sliding seat. The gear rack meshes with the transmission gear. A slider is installed at the tail end of the gear rack. A spiral groove is opened on the outer wall of the connecting column. The spiral groove has a double spiral structure. The slider is slidably connected to the inner wall of the spiral groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When using this invention, the inner diameter and roundness of the inner wall of the pressure vessel body can be measured through the set measurement component, response component and trigger component. It can also accurately measure the position and deformation of the concave and convex parts of the inner wall of the pressure vessel body, which is convenient for the staff to carry out maintenance and avoids the uneven stress on the inner wall of the pressure vessel body caused by the poor roundness of the pressure vessel body, which affects the pressure bearing capacity of the pressure vessel body and its service life.

[0018] 2. When using this invention, the heating tube can increase the deformation of the regulating tube by heating it, thus avoiding the fact that the changes caused by the small indentation or bulge of the pressure vessel body are too small to be displayed, thereby improving the sensitivity of the detection.

[0019] 3. When using this invention, the angle of the measuring component can be adjusted through the control and steering components, so as to avoid the measuring component being unable to be parallel to the axis of the pressure vessel body when it is plugged in, which would affect the normal use of the measuring component. In this way, it can be used to perform measurements on the pressure vessel body, thus improving its applicability.

[0020] 4. When using this invention, the driving component can drive the measuring component to move and rotate through the forward and reverse rotation of the bidirectional motor, thereby assisting the measuring component in measuring the roundness of various parts of the inner wall of the pressure vessel body and improving the comprehensiveness of the measurement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a pressure vessel body for measuring and detecting the internal cavity of a pressure vessel.

[0022] Figure 2 This is a schematic diagram of the structure of the testing equipment body in a pressure vessel cavity measurement and testing instrument.

[0023] Figure 3 This is a cross-sectional view of a control component in a pressure vessel cavity measuring and testing instrument.

[0024] Figure 4 This is an exploded view of the control component in a pressure vessel cavity measuring and testing instrument.

[0025] Figure 5 This is a cross-sectional view of a fixed component in a pressure vessel cavity measuring and testing instrument.

[0026] Figure 6 This is a schematic diagram of the steering assembly in a pressure vessel cavity measuring and testing instrument.

[0027] Figure 7 This is a cross-sectional view of a drive assembly in a pressure vessel cavity measuring and testing instrument.

[0028] Figure 8 This is a schematic diagram of the drive disc in a pressure vessel cavity measuring and testing instrument.

[0029] Figure 9 This is a schematic diagram of the transmission shaft in a pressure vessel internal cavity measuring and testing instrument.

[0030] Figure 10 This is a cross-sectional view of an adjusting block in a pressure vessel internal cavity measuring and testing instrument.

[0031] Figure 11 This is a schematic diagram of the structure of a fixed plate in a pressure vessel cavity measuring and testing instrument.

[0032] Figure 12 This is a cross-sectional view of an adjustment component in a pressure vessel cavity measuring and testing instrument.

[0033] Figure 13 This is a schematic diagram of a folded rod in a pressure vessel cavity measuring and testing instrument.

[0034] Figure 14 This is a cross-sectional view of a trigger component in a pressure vessel internal cavity measurement and testing instrument.

[0035] Figure 15 This is a cross-sectional view of a response component in a pressure vessel cavity measurement and testing instrument.

[0036] Figure 16 For a pressure vessel internal cavity measuring and testing instrument Figure 15 Enlarged view of part A.

[0037] In the diagram: 100, pressure vessel body; 101, opening; 102, support base; 103, feed inlet; 200, outer shell; 201, main control box; 202, handle; 203, control panel; 210, first connecting rod; 220, rotating base; 221, connecting rotating block; 222, first rotating rod; 223, first rotating disk;

[0038] 300. Control box; 310. Control panel; 311. Throttle; 312. Second rotating rod; 313. Limit block; 320. Second rotating disc; 321. First pulley; 330. Third rotating disc; 331. Second pulley; 340. Limit socket;

[0039] 400. Fixed base; 401. Adjusting component; 402. Extrusion plate; 410. First lead screw; 411. First bevel gear; 420. Second lead screw; 421. Second bevel gear; 430. Fourth rotating disk;

[0040] 500. Bidirectional motor; 501. Drive shaft; 502. Connecting disc; 503. Adjusting block; 504. Connecting block; 505. First spring; 506. Fastening block; 510. Drive seat; 520. Multi-stage telescopic rod; 521. Second spring; 522. Binding block; 523. Pull rope; 530. First drive disc; 531. Second drive disc; 532. Third drive disc; 533. First locking groove; 534. Adjusting groove; 535. Second locking groove;

[0041] 540. Fixed plate; 541. Winding roller; 542. Transmission gear; 543. Sliding seat; 544. Gear rack; 545. Slider; 550. Connecting column; 551. Spiral groove;

[0042] 600. Adjusting seat; 601. Servo motor; 602. Drive gear; 603. Connecting shaft; 604. Driven gear; 605. Fifth rotating disk; 606. Third pulley; 610. Folding rod; 611. Rotating pin; 612. Sixth rotating disk; 620. Water pipe; 630. Trigger seat; 631. First piston plate; 632. Second connecting rod; 633. Ball bearing;

[0043] 700, Installation box; 701, Water storage tank; 710, Positive electrode plate; 711, Telescopic component; 712, Negative electrode plate; 720, Adjusting tube; 721, Second piston plate; 730, Heating tube; 731, Installation plate. Detailed Implementation

[0044] 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.

[0045] Please see Figure 1 In this embodiment of the invention, a pressure vessel cavity measuring and testing instrument includes a pressure vessel body 100 and a testing equipment body. Specifically, the pressure vessel body 100 has a feed inlet 103 installed on the top for feeding, and support seats 102 for support are installed at both ends of the bottom of the pressure vessel body 100. An opening 101 for connection is installed in the middle of the side wall of the pressure vessel body 100. When materials need to be added into the pressure vessel body 100, they can be filled through the feed inlet 103. The design of the opening 101 allows the staff to quickly insert the instrument into the interior to perform internal testing.

[0046] See Figure 2The testing equipment body includes a housing 200 and a measuring assembly for measuring the diameter and roundness of the inner wall of the pressure vessel body 100. The measuring assembly includes an adjusting seat 600 for measuring the inner diameter and folding rods 610 arranged circumferentially on the outer wall of the adjusting seat 600. The tail end of the folding rods 610 is equipped with a triggering assembly for pressing against the inner wall of the pressure vessel body 100. An adjusting assembly for driving the folding rods 610 to unfold is installed inside the adjusting seat 600. The folding rods 610 are adjusted and unfolded through the adjusting assembly. Then, the trigger component at the end of the folding rod 610 comes into contact with the inner wall of the pressure vessel body 100. The measuring component also includes a mounting box 700 installed at one end of the axis of the adjusting seat 600 for measuring the roundness of the pressure vessel body 100. The mounting box 700 is equipped with a response component that drives the change of current through the trigger component. When the inner wall of the pressure vessel body 100 produces bulges and depressions, the trigger component can drive the response component to start the change of current, so as to measure the roundness of the inner wall of the pressure vessel body 100.

[0047] A main control box 201 for control is installed inside the outer casing 200. A handle 202 is installed on the top of the outer casing 200, which moves the outer casing 200 by pulling. A control panel 203 for operation and data display is installed on one side of the main control box 201. A first connecting rod 210 for connection is fixedly connected to one end of the main control box 201. A steering component for assisting the rotation of the measuring component is installed on the end of the first connecting rod 210 away from the outer casing 200. The measuring component can be rotated to one side of the axis of the pressure vessel body 100 by the steering component. A control component for adjusting the steering component is installed on the outer wall of the first connecting rod 210 near the outer casing 200. A drive component for driving the rotation and extension of the measuring component is installed on the steering component. The drive component is bolted to the end of the mounting box 700 away from the adjusting seat 600. When measurement is required, the testing equipment is... The device passes through the opening 101 on the pressure vessel body 100 and enters the inner wall of the pressure vessel body 100. At this time, the control component drives the steering component to rotate, which in turn drives the measuring component to rotate to the side parallel to the inner axis of the pressure vessel body 100. The adjustment component drives the folding rod 610 to rotate and unfold, bringing the trigger component into contact with the inner wall of the pressure vessel body 100. At this time, the radius of the pressure vessel body 100 can be measured by the distance between the tail end of the trigger component and the axis of the adjustment seat 600. The inner diameter of the pressure vessel body 100 can be measured by the formula of the radius and circumference of a circle. The drive component drives the adjustment seat 600 and the mounting box 700 to rotate and move, measuring the roundness of the inner wall of the pressure vessel body 100. The degree of bulging and depression of the inner wall of the pressure vessel body 100 can be obtained by the magnitude of the current change of the trigger component driving the response component.

[0048] For more details, please refer to Figure 5A fixing assembly for fixing the detection device body to the inner wall of the opening 101 is installed on the outer wall of the first connecting rod 210. The fixing assembly includes a fixing seat 400 installed on the outer wall of the first connecting rod 210, an adjusting member 401 slidably connected to the outer wall of the fixing seat 400, and a pressing plate 402 installed on the side of the adjusting member 401 away from the fixing seat 400 for support. The inner wall of the fixing seat 400 has a plurality of circumferentially arranged through first sliding grooves, and sliding cavities are opened at both ends of the first sliding grooves. The adjusting member 401 is U-shaped. The adjusting member 401 is slidably connected to the inner wall of the limiting groove. Both ends of the adjusting member 401 are fitted with protrusions slidably connected to the sliding cavity. The extrusion plate 402 is arc-shaped and has multiple damping grooves on its top to increase resistance. A first lead screw 410 is rotatably connected to the first groove at both the upper and lower ends. The adjusting members 401 at both the upper and lower ends are threaded to the outer wall of the first lead screw 410. A second lead screw 420 is rotatably connected to the first groove at both the left and right ends. The adjusting members 401 at both the left and right ends are threaded to the outer wall of the second lead screw 420. The first lead screw... A first bevel gear 411 is fixedly connected to the middle of the outer wall of the first screw 410. A second bevel gear 421, meshing with the first bevel gear 411, is fixedly connected to the axis of the second screw 420 near one end of the first screw 410. A fourth rotating disk 430 is fixedly connected to the outer wall of the first screw 410. A first pulley 321 for transmission is installed on the outer wall of the fourth rotating disk 430. Specifically, when the first pulley 321 rotates, it drives the fourth rotating disk 430 and the first screw 410 thereon to rotate, thus transmitting power through the first bevel gear... 411 drives the second bevel gear 421 meshing with it to rotate, which in turn drives the second lead screw 420 to rotate. Then, through the rotation of the first lead screw 410 and the second lead screw 420, the adjusting member 401 threadedly connected to it slides in the first slide groove. The sliding direction of the adjusting member 401 is limited by the sliding of the protrusion on the adjusting member 401 in the sliding cavity. The movement of the adjusting member 401 can drive the pressing plate 402 to move away from the axis of the fixed seat 400 and press it against the inner wall of the opening 101 to fix the outer shell 200.

[0049] See Figure 12 and 13The adjustment assembly includes a servo motor 601, a drive gear 602, a connecting shaft 603, and a third pulley 606. A first motor frame is mounted on the end of the adjustment seat 600 furthest from the mounting box 700. The servo motor 601 is mounted on the inner wall of the first motor frame. The drive gear 602 is rotatably connected to the inner wall of the adjustment seat 600 and mounted on the output end of the servo motor 601. The connecting shaft 603 is rotatably connected to the inner wall of the adjustment seat 600 in a circular arrangement. A driven gear 604 and a fifth rotating disk 605 are mounted on the outer wall of the connecting shaft 603. The driven gear 604 meshes with the outer wall of the drive gear 602. The folding rod 610 is composed of multiple folding plates rotatably connected end-to-end to form an integral structure. Rotating pins 611 are fixedly connected to both ends of each folding plate. Each rotating pin 611 is rotatably connected to the inner wall of another folding plate. A sixth rotating disk 612 is fixedly connected to both ends of the outer wall of each rotating pin 611. The third pulley 606... The sixth rotating disk 612 is installed on both ends of the folding plate, and the third pulley 606 is installed on the outer wall of the sixth rotating disk 612 on the folding plate near the adjustment seat 600, on the fifth rotating disk 605. When the folding rod 610 needs to be unfolded, the servo motor 601 is turned on. The servo motor 601 can drive the driven gear 604 meshing with it to rotate through the drive gear 602 on its output end. The driven gear 604 can drive the fifth rotating disk 605 to rotate through the connecting shaft 603. The fifth rotating disk 605 can drive the sixth rotating disk 612 and the rotating pin 611 on it to rotate through the third pulley 606. Then, the folding plate is rotated and unfolded through the rotating pin 611. And another folding plate is rotated and unfolded through the third pulley 606 on another sixth rotating disk 612. By repeating this process, multiple folding plates can be rotated and unfolded.

[0050] See Figure 14The trigger assembly includes a trigger seat 630, a first piston plate 631, and a ball bearing 633. The trigger seat 630 is fixedly connected to the outer wall of the end of the folding rod 610 away from the adjusting seat 600. The first piston plate 631 is slidably connected to the inner wall of the trigger seat 630. A second connecting rod 632 is fixedly connected to the axial position of the top end of the first piston plate 631. A rotating groove is opened at the top end of the second connecting rod 632. The ball bearing 633 is rotatably connected to the inner wall of the rotating groove on the second connecting rod 632. A water pipe 620 for water delivery is fixedly connected to the bottom end of the trigger seat 630. The drive gear 602 passes through the folding rod 610 and the adjusting seat 600 and extends to the inner wall of the mounting box 700. The bottom of the first piston plate 631 on the inner wall of the pressure vessel body 100 and the water pipe 620 are filled with aqueous solution. When the folding rod 610 is unfolded, the water in the trigger seat 630 squeezes the first piston plate 631 upward, and then the first piston plate 631 and the second connecting rod 632 drive the ball bearing 633 to move closer to the inner wall of the pressure vessel body 100 and fit against the inner wall of the pressure vessel body 100. When the ball bearing 633 moves to the concave and convex parts of the inner wall of the pressure vessel body 100, the ball bearing 633 can move synchronously with the concave and convex parts of the inner wall of the pressure vessel body 100, and transport the aqueous solution in the trigger seat 630 to the mounting box 700 through the water pipe 620.

[0051] See Figure 15 and 16The response component includes a positive electrode plate 710, a negative electrode plate 712, and a regulating pipe 720. A water storage tank 701 for storing the aqueous solution is fixedly connected to the inner wall of the mounting box 700. A water pipe 620 communicates with the inner wall of the water storage tank 701. The positive electrode plate 710 is installed on the side of the mounting box 700 away from the water storage tank 701. A telescopic component 711 is installed at one end of the positive electrode plate 710. The telescopic component 711 is a telescopic structure, and its inner wall is filled with an electrolyte solution. The negative electrode plate 712 is fixedly connected to the other end of the telescopic component 711. Elastic components for resetting are installed on the opposing wall surfaces of the positive electrode plate 710 and the negative electrode plate 712. The telescopic component 711 and the negative electrode plate 712... Plate 712 is electrically connected to control panel 203 via a guide. Adjusting pipe 720 is connected to water storage tank 701. A second piston plate 721 is slidably connected to the inner wall of adjusting pipe 720. The side of adjusting pipe 720 near water storage tank 701 is straight and made of rigid material, while the side away from water storage tank 701 is arc-shaped and made of resin. The side of adjusting pipe 720 away from water storage tank 701 containing the second piston plate 721 is filled with inert gas. An mounting plate 731 is installed on the outer wall of water storage tank 701 at the bottom of adjusting pipe 720. A heating element is installed on the top outer wall of mounting plate 731 at the arc-shaped bottom position of adjusting pipe 720. The heating tube 730 contains an electric arc, which generates heat through arc discharge. When the ball bearing 633 moves to the protrusion on the inner wall of the pressure vessel body 100, it can compress the ball bearing 633. This compression, along with the trigger seat 630, moves the aqueous solution through the water pipe 620 and the water tank 701 into the regulating pipe 720, compressing the second piston plate 721. The compression of the second piston plate 721 then compresses the inert gas, which in turn compresses the tail end of the regulating pipe 720. This compression causes the regulating pipe 720 to deform and straighten, thus allowing the component moving perpendicular to the negative electrode plate 712 to exert pressure on the negative electrode plate 712. 12. Extrusion causes the gap between the negative electrode plate 712 and the positive electrode plate 710 to narrow. The resistance of the electrolyte in the telescopic component 711 is proportional to the gap, thus reducing the resistance and increasing the current. Conversely, the current decreases. The electrical signal can be transmitted to the control panel 203 for display through the guide. The operator can then measure the roundness of the inner wall of the pressure vessel body 100 based on the data displayed on the control panel 203. Furthermore, heating the arc part of the regulating tube 720 through the heating tube 730 softens the resin material of the regulating tube 720, increasing its deformation. This effectively increases the distance the negative electrode plate 712 can move, improving the sensitivity of the measurement.

[0052] See Figure 6The steering assembly includes a rotating seat 220 and a connecting rotating block 221. The rotating seat 220 is fixedly connected to the axis of the first connecting rod 210 away from the outer casing 200. The rotating seat 220 has a through rotating hole. The inner wall of the rotating hole is rotatably connected to a first rotating rod 222. The connecting rotating block 221 is fixedly connected to both ends of the first rotating rod 222. The middle position of the outer wall of the first rotating rod 222 is fixedly connected to a first rotating disk 223. A second pulley 331 is installed on the outer wall of the first rotating disk 223. When the second pulley 331 rotates, the first rotating rod 222 can be rotated through the first rotating disk 223, which in turn drives the connecting rotating block 221 to turn.

[0053] See Figure 3 The control assembly includes a control box 300, a second rotating rod 312, and a third rotating disk 330. The third rotating disk 330 is fixedly connected to the first connecting rod 210 near the main control box 201. The third rotating disk 330 is rotatably connected to the bottom of the control box 300. A second pulley 331 is installed on the outer wall of the third rotating disk 330. The second rotating rod 312 is installed on the inner wall of the third rotating disk 330. The control disk 310 is fixedly connected to the top axis of the second rotating rod 312. A handle 311 for driving rotation is installed on one side of the top of the control disk 310. When it is necessary to rotate the connecting rotating block 221, the handle 311 is used to pull the control disk 310 to rotate. The control disk 310 can then drive the third rotating disk 330 to rotate via the second rotating rod 312, which in turn drives the first rotating disk 223 to rotate via the second pulley 331, and then drives the connecting rotating block 221 to rotate.

[0054] For more details, please refer to Figure 4A partition is installed in the middle of the inner wall of the third rotating disk 330. The second rotating disk 320 is rotatably connected to the top outer wall of the partition. The first pulley 321 is installed on the outer wall of the second rotating disk 320. Two sets of circumferentially arranged limiting blocks 313 are installed on the outer wall of the second rotating rod 312. The inner walls of both the second rotating disk 320 and the third rotating disk 330 are provided with limiting insertion holes 340 that are adapted to the limiting blocks 313. The distance between the two sets of limiting blocks 313 is smaller than the distance between the second rotating disk 320 and the third rotating disk 330. Specifically, when the second rotating disk 320 needs to be rotated, the limiting blocks 313 at the top are engaged with the limiting insertion holes in the second rotating disk 320. In hole 340, the rotation of the second rotating rod 312 can drive the second rotating disk 320 to rotate through the limiting block 313. When it is necessary to drive the third rotating disk 330 to rotate, the second rotating rod 312 is pressed, which then moves the second rotating rod 312 downward. At this time, the upper limiting block 313 can be moved out of the limiting insertion hole 340 on the second rotating disk 320, and the lower limiting block 313 can be inserted into the inner wall of the limiting insertion hole 340 on the third rotating disk 330. The third rotating disk 330 can be driven to rotate through the limiting block 313. Then, the second rotating disk 320 and the third rotating disk 330 can be adjusted separately by moving the second rotating rod 312.

[0055] See Figure 2 and Figure 7 The drive assembly includes a bidirectional motor 500, a drive base 510, a multi-stage telescopic rod 520, and a first drive disc 530. A second motor frame is mounted on the outer wall of one side of the connecting block 221. The bidirectional motor 500 is mounted on the inner wall of the second motor frame. The drive base 510 is fixedly connected to the second motor frame on the outer wall of the bidirectional motor 500. The first drive disc 530 is rotatably connected to the end of the drive base 510 away from the bidirectional motor 500. The multi-stage telescopic rod 520 is fixedly connected to one end of the first drive disc 530. The other end of the multi-stage telescopic rod 520 is fixedly connected to one end of the mounting box 700. The multi-stage telescopic rod 520 is an integral structure composed of multiple hollow columnar blocks that are slidably connected in sequence. The two ends of the columnar blocks are provided with second sliding grooves. The outer wall of the columnar blocks is equipped with sliding blocks that are slidably connected in the second sliding grooves. The opposing walls of two adjacent columnar blocks are equipped with second springs 521 for providing elastic force. The inner wall of the tail end of the multi-stage telescopic rod 520 is equipped with a binding block 522. The binding block 522 has a hole through which a pull rope 523 is wound.

[0056] See Figure 8A second drive disk 531 is rotatably connected to the inner ring of the first drive disk 530, and a third drive disk 532 is rotatably connected to the inner ring of the second drive disk 531. A drive shaft 501 is rotatably connected to the output end of the bidirectional motor 500. A connecting disk 502 is fixedly connected to the axis of the tail end of the drive shaft 501. The connecting disk 502 is in contact with the first drive disk 530. The first drive disk 530 and the third drive disk 532 are respectively provided with a plurality of first locking grooves 533 and second locking grooves 535 arranged in a circle for locking on the side of the first drive disk 531. A plurality of adjustment grooves 534 arranged in a circle are provided on the outer wall of the second drive disk 531. The adjustment grooves 534 are arc-shaped and penetrate the inner and outer rings of the second drive disk 531.

[0057] See Figure 9 and 10 The connecting plate 502 has multiple third sliding grooves arranged in a circular pattern on the side near the first drive plate 530. A connecting block 504 is slidably connected to the inner wall of the third sliding groove. An adjusting block 503 is fixedly connected to the outer wall of one side of the connecting block 504. The adjusting block 503 is slidably connected to the inner wall of the adjusting groove 534. Both ends of the adjusting block 503 have sliding holes. A fastening block 506 is slidably connected to the inner wall of the sliding hole. The fastening block 506 is adapted to the first locking groove 533 and the second locking groove 535. A first spring 505 is fixedly connected to the wall surface opposite to the fastening block 506 and the sliding hole. When the bidirectional motor 500 rotates counterclockwise, the adjusting block 503 can rotate on the arc surface of the adjusting groove 534. Then, the displacement component along the arc of the adjusting groove 534 drives the connecting block 504 to move away from the axis of the connecting plate 502 in the third sliding groove. At this time, the adjusting block 503 is close to the first locking groove 533 on the first drive disc 530. Then, under the elastic force of the first spring 505, the fastening block 506 can be driven into the inner wall of the first locking groove 533 for locking. The connecting disc 502 rotates, which drives the first drive disc 530 to rotate through the fastening block 506. Then, the multi-stage telescopic rod 520 drives the mounting box 700 and the adjusting seat 600 to rotate. When the bidirectional motor 500 reverses, the connecting block 504 can move down in the third sliding groove through the displacement component of the adjusting block 503 sliding in the adjusting groove 534. Then, the fastening block 506 at the bottom enters the second locking groove 535 to drive the third drive disc 532 to rotate. Then, the bidirectional rotation of the bidirectional motor 500 drives the first drive disc 530 and the third drive disc 532 to rotate respectively.

[0058] See Figure 11A fixing plate 540 is fixedly connected to the outer wall of the second motor frame on the bidirectional motor 500. A winding roller 541 is rotatably connected to the bottom of the fixing plate 540. A transmission gear 542 is fixedly connected to the axis of the top of the winding roller 541. A connecting column 550 is fixedly connected to the axis of the third drive disc 532. A through hole is opened in the connecting column 550. The pull rope 523 passes through the connecting column 550 and is fixed around the outer wall of the winding roller 541. A sliding seat 543 is fixedly connected to one end of the fixing plate 540 near the connecting column 550. A gear rack 544 is slidably connected in the sliding seat 543. The gear rack 544 meshes with the transmission gear 542. A slider 545 is installed at the tail end of the gear rack 544. A spiral groove 551 is opened on the outer wall of the connecting column 550. The spiral groove 551 has a double spiral structure. The slider 545 is slidably connected to the inner wall of the spiral groove 551. When the third drive disc 532 rotates, it drives the connecting column. When 550 rotates, it drives the slider 545 to slide on the spiral groove 551. The spiral groove 551 has a double spiral structure. When the slider 545 slides to the end of the spiral groove 551, it can turn. This allows the slider 545 to slide back and forth on the spiral groove 551, which in turn drives the gear rack 544 to move back and forth in the sliding seat 543. The movement of the gear rack 544 drives the transmission gear 542 to rotate. The reciprocating rotation of the transmission gear 542 and the winding roller 541 then retracts and releases the pull rope 523. When retracting, the pull rope 523 pulls the multi-stage telescopic rod 520 to retract. When releasing, the elasticity of the second spring 521 keeps the pull rope 523 taut and drives the multi-stage telescopic rod 520 to extend. This allows the length of the multi-stage telescopic rod 520 to be adjusted, which in turn moves the adjusting seat 600 and the mounting box 700.

[0059] The working principle of this invention is as follows: When measurement is required, the adjusting seat 600 and the mounting box 700 are inserted into the inner wall of the pressure vessel body 100 through the opening 101. The rotation of the handle 311 drives the first rotating rod 222 and the connecting rotating block 221 to rotate via the second rotating rod 312, the third rotating disk 330, the second pulley 331, and the first rotating disk 223. This rotates the adjusting seat 600 and the mounting box 700 to a position parallel to the axis of the pressure vessel body 100. Then, the servo motor 601 is activated, and the driving gear 6... 02. The driven gear 604 and the fifth rotating disk 605 drive the third pulley 606 to rotate. Through the rotation of multiple rotating pins 611, the folding rod 610 can be rotated and unfolded. At this time, through the squeezing of the aqueous solution, the first piston plate 631, the second connecting rod 632 and the ball 633 can be moved. The ball 633 is attached to the inner wall of the pressure vessel body 100. Then, the distance between the ball 633 and the axis of the adjusting seat 600 can be used to obtain the radius of the pressure vessel body 100, and then the inner diameter of the pressure vessel body 100 can be calculated.

[0060] Then, the bidirectional motor 500 is turned on. The forward and reverse rotation of the bidirectional motor 500 causes the fastening blocks 506 on the adjusting block 503 to engage in the first locking groove 533 and the second locking groove 535 respectively. This, in turn, drives the first drive disc 530 and the third drive disc 532 to rotate. The first drive disc 530, through the multi-stage telescopic rod 520, drives the adjusting seat 600 and the ball bearings 633 at the folding rod 610 on the adjusting seat 600 to rotate around the pressure vessel body 100. When the inner wall rotates, the third drive disc 532 rotates, which in turn drives the gear rack 544 to move back and forth through the sliding of the slider 545 on the spiral groove 551. This, in turn, drives the transmission gear 542 and the winding roller 541 to rotate back and forth to take in and release the pull rope 523. The pull of the pull rope 523 and the extension and retraction of the second spring 521 drive the extension and retraction of the multi-stage telescopic rod 520, which in turn drives the ball bearing 633 to move on the inner wall of the pressure vessel body 100. Through the rotation and movement of the ball bearing 633, the ball bearing 633 can be moved to any position on the inner wall of the pressure vessel body 100.

[0061] When the ball bearing 633 moves to the recess and protrusion on the inner wall of the pressure vessel body 100, the aqueous solution can be transported through the water pipe 620, driving the aqueous solution into the regulating pipe 720 to squeeze the second piston plate 721. The second piston plate 721 squeezes the inert gas, causing the gas to squeeze the tail end of the regulating pipe 720, causing the regulating pipe 720 to deform and bend. Then, the displacement component of the bending of the regulating pipe 720 squeezes the negative electrode plate 712, causing the distance between the negative electrode plate 712 and the positive electrode plate 710 to change, thereby generating a change in current. This change is transmitted to the control panel 203 for display via an electrical signal. The position and deformation of the recess and protrusion on the inner wall of the pressure vessel body 100 can be measured based on the displayed data and the position of the ball bearing 633.

[0062] When in use, this invention, through the set measurement component, response component, and triggering component, can measure the inner diameter and roundness of the inner wall of the pressure vessel body 100, and can accurately measure the position and deformation of the concave and convex parts of the inner wall of the pressure vessel body 100, which facilitates maintenance by the staff and avoids uneven stress on the inner wall of the pressure vessel body 100 due to the roundness difference of the pressure vessel body 100, which would affect the pressure bearing capacity of the pressure vessel body 100 and its service life.

[0063] By using the heating tube 730, the deformation of the regulating tube 720 can be increased through heating, thus preventing the changes in the pressure vessel body 100 from being too small to be displayed when the dents and bulges are small, thereby improving the sensitivity of the detection.

[0064] By setting up control and steering components, the angle of the measuring component can be adjusted to prevent the measuring component from being unable to be parallel to the axis of the pressure vessel body 100 during insertion, which would affect the normal use of the measuring component and enable it to be used for measurement within the pressure vessel body 100, thus improving its applicability.

[0065] The drive component is designed to move and rotate the measuring component by rotating the bidirectional motor 500 in both directions, thereby assisting the measuring component in measuring the roundness of various parts of the inner wall of the pressure vessel body 100 and improving the comprehensiveness of the measurement.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pressure vessel internal cavity measurement and testing instrument, comprising a pressure vessel body and a testing equipment body, characterized in that, The detection equipment body includes a shell and a measuring component for measuring the diameter and roundness of the inner wall of the pressure vessel body. The measuring component includes an adjusting seat for measuring the inner diameter and folding rods arranged circumferentially on the outer wall of the adjusting seat. A triggering component for pressing against the inner wall of the pressure vessel body is installed at the tail end of the folding rods. An adjusting component for driving the folding rods to unfold is installed inside the adjusting seat. The measuring component also includes a mounting box installed at one end of the adjusting seat at the axial position for measuring the roundness of the pressure vessel body. A response component for driving current changes through the triggering component is installed inside the mounting box. The housing contains a main control box for control. One end of the main control box is fixedly connected to a first connecting rod for connection. A steering component for assisting the rotation of the measuring component is installed at the end of the first connecting rod away from the housing. A control component for adjusting the steering component is installed on the outer wall of the first connecting rod near the housing. A drive component for driving the measuring component to rotate and extend is installed on the steering component. The drive component is installed on the mounting box away from the adjustment seat by bolts. The adjustment assembly includes a servo motor, a drive gear, a connecting shaft, and a third pulley. The servo motor is installed on the end of the adjustment seat away from the mounting box. The drive gear is rotatably connected to the inner wall of the adjustment seat and installed on the output end of the servo motor. The connecting shaft is rotatably connected to the inner wall of the adjustment seat in a circular arrangement. A driven gear and a fifth rotating disk are installed on the outer wall of the connecting shaft. The driven gear meshes with the outer wall of the drive gear. The folding rod is composed of multiple folding plates that are rotatably connected end to end to form an integral structure. A rotating pin is fixedly connected to both ends of the folding plate. The rotating pin is rotatably connected to the inner wall of another folding plate. A sixth rotating disk is fixedly connected to both ends of the outer wall of the rotating pin. The third pulley is installed on the sixth rotating disk at both ends of the folding plate. The third pulley is also installed on the outer wall of the sixth rotating disk on the folding plate near the adjustment seat. The triggering assembly includes a trigger seat, a first piston plate, and a ball bearing. The trigger seat is fixedly connected to the outer wall of the folding rod at the end away from the adjusting seat. The first piston plate is slidably connected to the inner wall of the trigger seat. A second connecting rod is fixedly connected to the top axis of the first piston plate. The ball bearing is rotatably connected to the inner wall of the second connecting rod. A water pipe for water delivery is fixedly connected to the bottom of the trigger seat. The drive gear passes through the folding rod and the adjusting seat and extends to the inner wall of the mounting box. The response component includes a positive electrode plate, a negative electrode plate, and a regulating tube. A water storage tank for storing the aqueous solution is fixedly connected to the inner wall of the mounting box. A water pipe is connected to the inner wall of the water storage tank. The positive electrode plate is installed on the side of the mounting box away from the water storage tank. A telescopic component is installed at one end of the positive electrode plate, and the negative electrode plate is fixedly connected to the other end of the telescopic component. The regulating tube is connected to the water storage tank. A second piston plate is slidably connected to the inner wall of the regulating tube. An installation plate is installed on the outer wall of the water storage tank at the bottom of the regulating tube. A heating tube for heating is installed on the top outer wall of the installation plate at the bottom of the regulating tube.

2. The pressure vessel internal cavity measuring and testing instrument according to claim 1, characterized in that, The steering assembly includes a rotating seat and a connecting block. The rotating seat is fixedly connected to the axis of the first connecting rod at the end away from the outer shell. The inner wall of the rotating seat is rotatably connected to the first rotating rod. The connecting block is fixedly connected to both ends of the first rotating rod. The middle position of the outer wall of the first rotating rod is fixedly connected to the first rotating disc. The outer wall of the first rotating disc is equipped with a second pulley.

3. The pressure vessel internal cavity measuring and testing instrument according to claim 2, characterized in that, The control assembly includes a control box, a second rotating rod, and a third rotating disk. The third rotating disk is fixedly connected to the side of the first connecting rod near the main control box, and the third rotating disk is rotatably connected to the bottom of the control box. A second pulley is installed on the outer wall of the third rotating disk, and a second rotating rod is installed on the inner wall of the third rotating disk.

4. The pressure vessel internal cavity measuring and testing instrument according to claim 1, characterized in that, The drive assembly includes a bidirectional motor, a drive base, a multi-stage telescopic rod, and a first drive disc. The bidirectional motor is mounted on the outer wall of one side of the connecting block. The drive base is fixedly connected to the outer wall of the bidirectional motor. The first drive disc is rotatably connected to the end of the drive base away from the bidirectional motor. The multi-stage telescopic rod is fixedly connected to one end of the first drive disc. The other end of the multi-stage telescopic rod is fixedly connected to one end of the mounting box. A binding block is installed on the inner wall of the tail end of the multi-stage telescopic rod, and a pull rope is wound around the binding block through a hole.

5. The pressure vessel internal cavity measuring and testing instrument according to claim 4, characterized in that, A second drive disk is rotatably connected to the inner ring of the first drive disk, and a third drive disk is rotatably connected to the inner ring of the second drive disk. A drive shaft is rotatably connected to the output end of the bidirectional motor. A connecting disk is fixedly connected to the axis of the tail end of the drive shaft. The connecting disk is in contact with the first drive disk. The first drive disk and the third drive disk are respectively provided with multiple first locking grooves and second locking grooves arranged in a circle on the side near the second drive disk. Multiple adjustment grooves arranged in a circle are provided on the outer wall of the second drive disk.

6. The pressure vessel internal cavity measuring and testing instrument according to claim 5, characterized in that, A connecting block is slidably connected to the connecting plate near the first driving plate. An adjusting block is fixedly connected to the outer wall of one side of the connecting block. The adjusting block is slidably connected to the inner wall of the adjusting groove. Fastening blocks are slidably connected to both ends of the adjusting block. The fastening blocks are adapted to the first locking groove and the second locking groove.

7. The pressure vessel internal cavity measuring and testing instrument according to claim 6, characterized in that, A fixing plate is fixedly connected to the outer wall of the second motor frame on the bidirectional motor. A winding roller is rotatably connected to the bottom of the fixing plate. A transmission gear is fixedly connected to the axis of the top of the winding roller. A connecting column is fixedly connected to the axis of the third drive disc. The pull rope passes through the connecting column and is fixed around the outer wall of the winding roller. A sliding seat is fixedly connected to one end of the fixing plate near the connecting column. A gear rack is slidably connected inside the sliding seat. The gear rack meshes with the transmission gear. A slider is installed at the tail end of the gear rack. A spiral groove is opened on the outer wall of the connecting column. The spiral groove has a double spiral structure. The slider is slidably connected to the inner wall of the spiral groove.

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