High-temperature superconducting Tokamak Dewar ring body measuring equipment and application method

Abstract

The invention discloses a high-temperature superconducting Tokamak Dewar ring body measuring device and an application method, and relates to the technical field of measurement, the high-temperature superconducting Tokamak Dewar ring body measuring device comprises a Dewar ring body, a top cover is arranged at the upper end of the Dewar ring body, and flange rings are arranged on the outer surfaces of the top cover and the Dewar ring body; and the lower end of the flange ring is fixedly provided with two mounting mechanisms which are spliced and combined into a circular ring shape through bolts. The rolling balls on the arc bead rods make contact with the surface of the flange ring and move along with expansion of the flange ring, the tiny thickness change of the flange ring can be detected very sensitively, the position change of the absolute value scale can accurately reflect the thickness change of the flange ring, and contact between the arc bead rods and the surface of the flange ring is dynamic. Any change of the flange ring can be quickly responded, the real-time performance and accuracy of data are ensured, and the sealing performance of the flange ring under the high-temperature condition can be evaluated by detecting the thickness change of the flange ring after being heated and expanded.

Description

Technical Field

[0001] The present invention relates to the field of measurement technology, and in particular to a high-temperature superconducting Tokamak Dewar ring measurement device and an application method. Background Art

[0002] The Dewar ring (usually referred to as the outer vacuum Dewar) in the high-temperature superconducting Tokamak device is a key structural component. It not only provides a low-temperature environment for the internal superconducting magnet, but also withstands the mechanical stress caused by the temperature and pressure difference between the inside and outside. In order to ensure the safe operation of the device, it is necessary to monitor the changes of the Dewar ring during the experiment.

[0003] For example, the patent document with publication number CN103615965B, the invention name is an eddy current thickness measurement method for the thickness of the coating layer on the surface of a curved metal with a changing curvature, which adopts a method for positioning detection and calibration of a mechanical scanner with a grid-like detection point. First, a mechanical scanner is used to locate and detect the curved metal surface of a substrate without a coating layer and the curved metal surface with three standard coating layers of different thicknesses, and a coating thickness calibration curve for each detection point is prepared. Then, a mechanical scanner is used to locate and detect the inspected metal workpiece with a coating layer. Through the coating thickness calibration curve for each detection point, the precise coating thickness value of each detection point on the surface of the curved metal workpiece with a changing curvature is calculated, which effectively solves the detection problem of the coating thickness on the surface of the curved metal workpiece with a changing curvature.

[0004] The above invention is to detect the curvature of a metal workpiece, and the high-temperature superconducting Tokamak Dewar ring in the present invention itself needs to withstand a relatively high temperature, so the size of the Tokamak Dewar ring in the working state will change, and the installation of the Tokamak Dewar ring needs to be installed through a flange ring docking, and the size, thickness and curvature of the flange ring change after thermal expansion, and the tiny size, thickness and curvature changes of the flange ring after thermal expansion that do not meet the standards will lead to failure of the flange ring seal, so it is necessary to detect the connection quality of the Dewar ring and other mounting parts under different temperature conditions. The present application provides a high-temperature superconducting Tokamak Dewar ring measurement device and application method to meet the needs. Summary of the invention

[0005] The purpose of this application is to provide a high-temperature superconducting Tokamak Dewar ring measurement device and an application method, which can effectively solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a high-temperature superconducting Tokamak Dewar ring measuring device, comprising a Dewar ring, a top cover is arranged at the upper end of the Dewar ring, and flange rings are arranged on the outer surfaces of the top cover and the Dewar ring, and two mounting mechanisms spliced ​​and assembled in a circular ring shape are fixedly installed at the lower end of the flange ring by bolts, and detection mechanisms for detecting the thermal expansion coefficient of the flange ring are arranged at the upper ends of the two mounting mechanisms, and curvature detection mechanisms for detecting the curvature change of the flange ring after heating are arranged inside the two detection mechanisms, and thickness detection mechanisms for detecting the thickness size change of the two flange rings after thermal collision are arranged on one side of the two curvature detection mechanisms, and a heating mechanism for heating the two flange rings is arranged inside the top cover and the Dewar ring; The thickness detection mechanism includes a mounting shell, a support rod is provided on the inner wall of the mounting shell, a partition is provided in the middle of the inner wall of the mounting shell, an absolute value scale is provided on the outer surface of the support rod and on both sides of the partition, and the outer surface of the absolute value scale is provided with a plurality of scale holes distributed at equal intervals.

[0007] Wherein, the installation mechanism comprises a ball seat, a plurality of balls are arranged inside the ball seat, a slip ring is slidably installed inside the ball seat, and a mounting seat is arranged at the upper end of the slip ring.

[0008] Among them, the detection mechanism includes a base, a circumference measuring instrument is arranged on one side of the upper end of the base, the base is fixedly mounted on the upper end of the mounting seat, a data detection box is arranged on the upper end of the base, and two detection rods are symmetrically arranged on one side of the data detection box.

[0009] Among them, a sliding rod is slidably installed inside the detection rod, a ring plate is arranged in the middle of the outer surface of the sliding rod, and a tension spring is sleeved on the outer surface of the ring plate, a roller is arranged at one end of the sliding rod and an iron core is arranged at the other end, a secondary coil and a primary coil are arranged on one side of the inner wall of the detection rod, and the secondary coil and the primary coil are both sleeved on the outside of the iron core.

[0010] Among them, the curvature detection mechanism includes a mounting ring, a supporting shaft is arranged in the middle part of the mounting ring, and the supporting shaft is fixedly installed on the upper end of the base, a bearing is rotatably installed on the outer surface of the supporting shaft and located inside the mounting ring, and a torsion spring is arranged on the outer surface of the supporting shaft and located at the upper end of the bearing.

[0011] Among them, a connecting rod is provided on one side of the outer surface of the bearing, an axis roller is provided at one end of the connecting rod, an inclination sensor is provided on one side of the outer surface of the bearing, a transmission line is provided on one side of the inclination sensor, and one end of the transmission line is electrically connected to the data detection box.

[0012] Two ultra-clear CMOS sensors are symmetrically arranged on the inner wall of the installation shell, high-power LEDs corresponding to the positions of the ultra-clear CMOS sensors are arranged on both sides of the partition, and notches are opened on both sides of the installation shell.

[0013] Among them, two slide blocks are arranged on the inner wall of the mounting shell, springs are arranged inside the two slide blocks, arc bead rods are arranged at one end of the two absolute value scales, a data cable is arranged on the outer surface of the mounting shell, and one end of the data cable is electrically connected to the data detection box, and the mounting shell is fixedly installed on one side of the connecting rod.

[0014] Among them, the heating mechanism includes an insulation ring, the inner wall of the insulation ring is provided with two heat-conducting ring plates, the interior of the two heat-conducting ring plates is provided with heating wires, and elastic rings are provided on the upper and lower sides of the insulation ring, and the two heat-conducting ring plates are respectively tightly attached to the inner walls of the top cover and the Dewar ring body.

[0015] The present invention also provides an application method of a high-temperature superconducting Tokamak Dewar ring measuring device. The specific application method of the Tokamak Dewar ring measuring device is as follows: S1. Install the heating mechanism on the inner wall of the Dewar ring body, then install the top cover on the Dewar ring body so that the two flange rings are aligned and fixed with bolts, and then butt-mount the two sets of mounting mechanisms under the flange rings; S2. When testing the Dewar ring body and the flange ring, the heating mechanism heats up and transfers the temperature to the two flange rings. The influence of the temperature on the size of the flange ring after installation is detected by heating up. The detection mechanism can detect the thermal expansion value of the flange ring at different temperatures; S3. The curvature detection mechanism can detect the change in the surface curvature of the flange ring after the temperature is increased, and a thickness detection mechanism is provided to detect the tightness between the two flange rings after installation according to the different temperatures of the flange rings.

[0016] In summary, the technical effects and advantages of the present invention are as follows: 1. The present invention can very sensitively detect slight thickness changes of the flange ring by making the ball on the arc bead rod contact with the surface of the flange ring and move with the expansion of the flange ring. The position change of the absolute value scale can accurately reflect the thickness change of the flange ring. The contact between the arc bead rod and the surface of the flange ring is dynamic and can quickly respond to any changes of the flange ring to ensure the real-time and accuracy of the data. By detecting the thickness change of the flange ring after thermal expansion, its sealing performance under high temperature conditions can be evaluated. If the flange ring undergoes significant deformation or thickness change after heating, it may cause sealing failure. Through detailed inspection of the flange ring, its dimensional stability under different temperature conditions can be ensured, thereby ensuring the connection quality of the Dewar ring body and other mounting parts. The function of the spring is to maintain the contact force between the absolute value scale and the flange ring to ensure that the scale can accurately follow the changes of the flange ring when the flange ring expands due to heat.

[0017] 2. The present invention contacts the outer surface of the flange ring through the roller and rolls with the expansion of the flange ring, so that the slight size change of the flange ring can be detected very sensitively. The primary coil and the secondary coil cause the resistance to change through the change of the iron core, which can reflect the size change of the flange ring very accurately. As the mounting seat rotates, the data detection box and the base make a circular motion around the flange ring to achieve continuous monitoring of the flange ring. Data can be obtained in real time during the entire detection process, rather than measuring only at a specific point. By detecting the size change of the flange ring after thermal expansion, its sealing performance under high temperature conditions can be evaluated. If the flange ring is significantly deformed after heating, its dimensional stability under different temperature conditions can be ensured through detailed detection of the flange ring, thereby ensuring the connection quality of the Dewar ring body and other mounting parts.

[0018] 3. In the present invention, the shaft roller is tightly attached to the outer surface of the flange ring and rolls as the flange ring expands. The angle change between the connecting rod and the axis of the flange ring can very sensitively reflect the small size and curvature changes of the flange ring. The inclination sensor can accurately detect the deflection angle of the bearing, thereby indirectly measuring the curvature change of the flange ring. As the base moves in a circle around the flange ring, the shaft roller rolls on the surface of the entire flange ring to achieve continuous monitoring of the flange ring, which makes it possible to obtain data in real time during the entire test process, rather than measuring only at a specific point. By detecting the size and curvature changes of the flange ring after thermal expansion, its sealing performance under high temperature conditions can be evaluated. If the flange ring undergoes significant deformation or curvature changes after heating, it may cause sealing failure. The torsion spring provides torque to the connecting rod to ensure that the shaft roller is always tightly attached to the surface of the flange ring, and can maintain good contact even when the flange ring expands due to heat, thereby ensuring the accuracy and stability of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the high-temperature superconducting Tokamak Dewar ring measurement equipment; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the high-temperature superconducting Tokamak Dewar ring measurement equipment; Figure 3 It is a schematic diagram of the three-dimensional connection structure of the installation mechanism and the detection mechanism; Figure 4 It is a schematic diagram of the three-dimensional connection structure of the installation mechanism, the detection mechanism, the thickness detection mechanism and the curvature detection mechanism; Figure 5 It is a schematic diagram of the three-dimensional connection structure of the installation mechanism; Figure 6 It is an exploded view of the three-dimensional connection structure of the installation mechanism; Figure 7 It is a schematic diagram of the three-dimensional connection structure of the detection mechanism, the thickness detection mechanism and the curvature detection mechanism; Figure 8 It is a schematic diagram of the three-dimensional connection structure of the detection mechanism and the curvature detection mechanism; Fig. 9 It is a schematic diagram of the three-dimensional connection structure of the detection mechanism; Fig.10 It is a cross-sectional view of the three-dimensional connection structure of the detection mechanism; Fig.11 It is a schematic diagram of the first-view stereoscopic connection structure of the curvature detection mechanism; Fig.12 It is a schematic diagram of the second viewing angle stereoscopic connection structure of the curvature detection mechanism; Fig.13 It is a schematic diagram of the three-dimensional connection structure of the thickness detection mechanism; Fig.14 A sectional view of the three-dimensional connection structure of the thickness detection mechanism from a first perspective; Fig.15 A sectional view of the three-dimensional connection structure of the thickness detection mechanism from a second viewing angle; Fig.16 It is a schematic diagram of the three-dimensional connection structure of the absolute value ruler and the slide block; Fig.17 It is a schematic diagram of the three-dimensional connection structure of the heating mechanism; Fig.18 It is a cross-sectional view of the three-dimensional connection structure of the heating mechanism.

[0021] In the figure: 1, top cover; 2, Dewar ring; 3, flange ring; 4, mounting mechanism; 41, mounting seat; 42, slip ring; 43, ball seat; 44, ball; 5, detection mechanism; 51, data detection box; 52, circumference measuring instrument; 53, base; 54, detection rod; 55, roller; 56, slide rod; 57, tension spring; 58, ring piece; 59, iron core; 511, primary coil; 512, secondary coil; 6, thickness detection mechanism; 60, scale hole; 61, data line; 62, mounting shell; 6 3. Arc bead rod; 64. Notch; 65. Support rod; 66. Absolute value ruler; 67. Slide block; 68. Ultra-clear CMOS sensor; 69. High-power LED; 611. Partition; 612. Spring; 7. Curvature detection mechanism; 71. Connecting rod; 72. Mounting ring; 73. Support shaft rod; 74. Torsion spring; 75. Bearing; 76. Shaft roller; 77. Inclination sensor; 78. Transmission line; 8. Heating mechanism; 81. Insulation ring; 82. Heat-conducting ring plate; 83. Heating wire; 84. Elastic ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1, Reference Figures 1 to 18 The high-temperature superconducting Tokamak Dewar ring measuring device shown comprises a Dewar ring 2, a top cover 1 is arranged at the upper end of the Dewar ring 2, flange rings 3 are arranged on the outer surfaces of the top cover 1 and the Dewar ring 2, two mounting mechanisms 4 spliced ​​and assembled in a circular ring shape are fixedly installed at the lower end of the flange ring 3 by bolts, detection mechanisms 5 for detecting the thermal expansion coefficient of the flange ring 3 are arranged at the upper ends of the two mounting mechanisms 4, curvature detection mechanisms 7 for detecting the curvature change of the flange ring 3 after heating are arranged inside the two detection mechanisms 5, thickness detection mechanisms 6 for detecting the thickness size change of the two flange rings 3 after thermal collision are arranged on one side of the two curvature detection mechanisms 7, and a heating mechanism 8 for heating the two flange rings 3 is arranged inside the top cover 1 and the Dewar ring 2; It is worth noting that when in use, the top cover 1 is installed on the upper end of the Dewar ring body 2. Since the flange ring 3 is provided as the connection between the top cover 1 and the Dewar ring body 2, the flange ring 3 needs to be assembled and tested during the production inspection process to inspect the use status of the flange ring 3 during the installation of the Dewar ring body 2 and various components. The installation mechanism 4 is installed to push the detection mechanism 5 at the upper end of the installation mechanism 4 to make a circular motion around the flange ring 3, and then the change in the circumference of the flange ring 3 after thermal expansion is obtained through the change in resistance; When the detection mechanism 5 makes a circular motion around the flange ring 3, the thickness detection mechanism 6 and the curvature detection mechanism 7 also make a circular motion around the flange ring 3 along with the detection mechanism 5, and the curvature detection mechanism 7 can detect the changes in the size and surface curvature of the flange ring 3 during the heating process through the bearing 75. By detecting the changes in the size and curvature of the flange ring 3, it can be obtained whether the sealing performance and size of the parts installed by the Dewar ring body 2 through the flange ring 3 are qualified during the installation and use of the Dewar ring body 2; The thickness detection mechanism 6 can detect the thickness and expansion index of each part of the flange ring 3 after the arc bead rod 63 detects one circle around the flange ring 3 during the heating process through the change of the position of the absolute value scale 66. These indexes can be used to detect whether the quality of the flange ring 3 and the Dewar ring body 2 is qualified when the Dewar ring body 2 is installed with other mounting parts.

[0024] Embodiment 2: Based on the heating mechanism 8, the mounting mechanism 4 and the detection mechanism 5 proposed in Embodiment 1, this embodiment provides a further technical solution for the heating mechanism 8, the mounting mechanism 4 and the detection mechanism 5.

[0025] The heating mechanism 8 includes a temperature-insulating ring 81, the inner wall of which is provided with two heat-conducting ring plates 82, the interiors of which are provided with heating wires 83, and elastic rings 84 are provided on the upper and lower sides of the temperature-insulating ring 81, and the two heat-conducting ring plates 82 are respectively tightly attached to the inner walls of the top cover 1 and the Dewar ring body 2.

[0026] It is worth noting that when testing the top cover 1 and the Dewar ring body 2, first, the insulation ring 81 and the heat-conducting ring plate 82 are tightly pressed against the inner wall of the Dewar ring body 2, and then the top cover 1 is covered on the upper end of the Dewar ring body 2, so that the two flange rings 3 are aligned and fixed by bolts, and then the insulation ring 81 is fixed to the top cover 1 and the inner wall of the Dewar ring body 2 by the elastic ring 84, and the two heat-conducting ring plates 82 are arranged to correspond to the positions of the two flange rings 3, and the heat is transferred to the flange ring 3 through the heating wire 83, and the use status of the flange ring 3 after installation is detected by the thermal expansion of the flange ring 3.

[0027] Among them, the flange ring 3 is a key component connecting the top cover 1 and the Dewar ring body 2. The changes in its size and shape directly affect the sealing performance. By detecting the state of the flange ring 3 after thermal expansion, its sealing performance under high temperature conditions can be evaluated to ensure that no leakage occurs in actual use. In addition, by detecting the deformation of the flange ring 3 after thermal expansion, its structural stability under high temperature conditions can be evaluated. If the flange ring 3 undergoes significant deformation or stress concentration after heating, it may cause structural failure.

[0028] The mounting mechanism 4 comprises a ball seat 43 , a plurality of balls 44 are arranged inside the ball seat 43 , a slip ring 42 is slidably mounted inside the ball seat 43 , and a mounting seat 41 is arranged at the upper end of the slip ring 42 .

[0029] Among them, when installing the ball seat 43, the ball seat 43 is installed under the flange ring 3 by bolts. When the flange ring 3 is inspected using the detection mechanism 5, the thickness detection mechanism 6 and the curvature detection mechanism 7, because the two ball seats 43 are designed to be semicircular, after being assembled together, the mounting seat 41 can make a circular motion by pushing the slip ring 42, and the set ball 44 can assist the slip ring 42 to slide smoothly.

[0030] The detection mechanism 5 includes a base 53, a circumference measuring instrument 52 is arranged on one side of the upper end of the base 53, the base 53 is fixedly mounted on the upper end of the mounting seat 41, a data detection box 51 is arranged on the upper end of the base 53, and two detection rods 54 are symmetrically arranged on one side of the data detection box 51.

[0031] A slide bar 56 is slidably installed inside the detection rod 54, a ring plate 58 is arranged in the middle of the outer surface of the slide bar 56, and a tension spring 57 is sleeved on the outer surface of the ring plate 58, a roller 55 is arranged at one end of the slide bar 56 and an iron core 59 is arranged at the other end, a secondary coil 512 and a primary coil 511 are arranged on one side of the inner wall of the detection rod 54, and the secondary coil 512 and the primary coil 511 are both sleeved on the outside of the iron core 59.

[0032] Among them, when the flange ring 3 is detected, the roller 55 contacts the outer surface of the flange ring 3. As the temperature of the surface of the flange ring 3 continues to rise, the flange ring 3 expands due to heat, and the size of the flange ring 3 will also change. The data detection box 51 and the base 53 are arranged to make circular motion around the flange ring 3 as the mounting seat 41 rotates, and the roller 55 rolls on the surface of the flange ring 3. When the size of the flange ring 3 changes, the slide bar 56 slides inside the detection rod 54, and one end of the tension spring 57 is fixedly connected to the ring sheet 58 to pull the slide bar 56 to move by contraction. When the slide bar 56 slides, it drives the iron core 59 to move, and the primary coil 511 and the secondary coil 512 are arranged to cause the resistance to change through the iron core 59. The change in resistance is used to deduce that the circumference of the flange ring 3 changes after thermal expansion.

[0033] Among them, the roller 55 contacts the outer surface of the flange ring 3 and rolls with the expansion of the flange ring 3, so that the slight size change of the flange ring 3 can be detected very sensitively. The primary coil 511 and the secondary coil 512 cause the resistance to change through the change of the iron core 59, which can very accurately reflect the size change of the flange ring 3. As the mounting base 41 rotates, the data detection box 51 and the base 53 make a circular motion around the flange ring 3, realizing continuous monitoring of the flange ring 3, and obtaining data in real time during the entire detection process, rather than measuring only at a specific point.

[0034] By detecting the dimensional change of the flange ring 3 after thermal expansion, its sealing performance under high temperature conditions can be evaluated. If the flange ring 3 is significantly deformed after heating, detailed testing of the flange ring 3 can ensure its dimensional stability under different temperature conditions, thereby ensuring the connection quality of the Dewar ring body 2 and other mounting parts.

[0035] Embodiment 3: Based on the curvature detection mechanism 7 provided in Embodiment 1, this embodiment further provides a further technical solution of the curvature detection mechanism 7.

[0036] The curvature detection mechanism 7 includes a mounting ring 72, a support shaft 73 is arranged in the middle of the mounting ring 72, and the support shaft 73 is fixedly mounted on the upper end of the base 53, a bearing 75 is rotatably mounted on the outer surface of the support shaft 73 and located inside the mounting ring 72, and a torsion spring 74 is arranged on the outer surface of the support shaft 73 and located at the upper end of the bearing 75.

[0037] A connecting rod 71 is provided on one side of the outer surface of the bearing 75, an axis roller 76 is provided at one end of the connecting rod 71, an inclination sensor 77 is provided on one side of the outer surface of the bearing 75, a transmission line 78 is provided on one side of the inclination sensor 77, and one end of the transmission line 78 is electrically connected to the data detection box 51.

[0038] It is worth noting that the movement of the base 53 will also drive the support shaft 73 to move, and the shaft roller 76 is in close contact with the outer surface of the flange ring 3. When the base 53 makes a circular motion around the flange ring 3, the shaft roller 76 rotates on the outer surface of the flange ring 3. When the flange ring 3 is heated to different temperatures and has different expansion coefficients, the angle between the connecting rod 71 and the axis of the flange ring 3 will also change. As the size of the flange ring 3 changes, the angle between the connecting rod 71 and the axis of the flange ring 3 will also change when the shaft roller 76 rolls. The rotation of the connecting rod 71 drives the bearing 7 5 rotates on the outer surface of the supporting shaft rod 73, and the torsion spring 74 is provided to provide torque for the connecting rod 71, so that the shaft roller 76 is closely attached to the surface of the flange ring 3. When the bearing 75 rotates, the inclination sensor 77 is provided to detect the deflection angle of the bearing 75. The changes in the size and surface curvature of the flange ring 3 during the heating process can be detected through the bearing 75. By detecting the changes in the size and curvature of the flange ring 3, it can be obtained whether the sealing performance and size of the parts of the Dewar ring body 2 installed through the flange ring 3 are qualified during the installation and use of the Dewar ring body 2.

[0039] The shaft roller 76 is closely attached to the outer surface of the flange ring 3 and rolls with the expansion of the flange ring 3. The angle change between the connecting rod 71 and the axis of the flange ring 3 can reflect the small size and curvature change of the flange ring 3 very sensitively.

[0040] The inclination sensor 77 can accurately detect the deflection angle of the bearing 75, thereby indirectly measuring the curvature change of the flange ring 3. As the base 53 moves in a circle around the flange ring 3, the shaft roller 76 rolls on the surface of the entire flange ring 3 to achieve continuous monitoring of the flange ring 3, which makes it possible to obtain data in real time during the entire test process, rather than measuring only at a specific point.

[0041] By detecting the size and curvature changes of the flange ring 3 after thermal expansion, its sealing performance under high temperature conditions can be evaluated. If the flange ring 3 undergoes significant deformation or curvature changes after heating, it may cause sealing failure. The torsion spring 74 provides torque for the connecting rod 71 to ensure that the shaft roller 76 is always in close contact with the surface of the flange ring 3, and can maintain good contact even when the flange ring 3 is thermally expanded, thereby ensuring the accuracy and stability of the detection.

[0042] Embodiment 4: Based on the thickness detection mechanism 6 proposed in Embodiment 1, this embodiment provides a further technical solution for the thickness detection mechanism 6.

[0043] The thickness detection mechanism 6 includes a mounting shell 62, a support rod 65 is arranged on the inner wall of the mounting shell 62, a partition 611 is arranged in the middle of the inner wall of the mounting shell 62, an absolute value scale 66 is arranged on the outer surface of the support rod 65 and on both sides of the partition 611, and the outer surface of the absolute value scale 66 is provided with a plurality of scale holes 60 distributed at equal intervals.

[0044] Two ultra-clear CMOS sensors 68 are symmetrically arranged on the inner wall of the mounting shell 62 , high-power LEDs 69 corresponding to the positions of the ultra-clear CMOS sensors 68 are arranged on both sides of the partition 611 , and slots 64 are opened on both sides of the mounting shell 62 .

[0045] The inner wall of the mounting shell 62 is provided with two slide blocks 67, and the interior of the two slide blocks 67 is provided with a spring 612. One end of the two absolute value scales 66 is provided with an arc bead rod 63. The outer surface of the mounting shell 62 is provided with a data line 61, and one end of the data line 61 is electrically connected to the data detection box 51. The mounting shell 62 is fixedly installed on one side of the connecting rod 71.

[0046] It is worth noting that when the connecting rod 71 moves, the mounting shell 62 will also be driven to move, and the two arc bead rods 63 are clamped at the upper and lower ends of the two flange rings 3, and the two arc bead rods 63 are used as follows: Fig.14 As shown, the ends of the two arc bead rods 63 that contact the surface of the flange ring 3 are both equipped with balls to reduce the friction generated by the contact movement between the arc bead rods 63 and the flange ring 3. When the flange ring 3 heats up and the metal expands, the size of the flange ring 3 changes, and the gap and sealing performance between the two flange rings 3 will also change, because the size change of the flange ring 3 is small; When the two flange rings 3 expand due to heat, the two arc bead rods 63 push the absolute value scale 66 to rotate on the outer surface of the support rod 65, and the rotation of the absolute value scale 66 drives the scale position of the scale hole 60 to move, and the high-power LED 69 shines the light through the scale hole 60 on the ultra-clear CMOS sensor 68. The ultra-clear CMOS sensor 68 is a clear CMOS sensor in the prior art with a very high pixel density, which can reach tens of millions or even hundreds of millions of pixels, so that they can capture extremely fine details, and when the absolute value scale 66 moves, it will slide inside the slide block 67, and the absolute value scale 66 will push the spring 612 to contract. The change in the position of the absolute value scale 66 can detect the thickness and expansion index of various parts of the flange ring 3 after the arc bead rod 63 detects a circle around the flange ring 3 during the heating process of the flange ring 3. These indexes are used to detect whether the quality of the flange ring 3 and the Dewar ring body 2 is qualified when the Dewar ring body 2 is installed with other mounting parts.

[0047] Among them, the ball on the arc ball rod 63 contacts the surface of the flange ring 3 and moves with the expansion of the flange ring 3, so the slight thickness change of the flange ring 3 can be detected very sensitively, and the position change of the absolute value scale 66 can accurately reflect the thickness change of the flange ring 3.

[0048] The contact between the arc bead rod 63 and the surface of the flange ring 3 is dynamic, and can respond quickly to any changes in the flange ring 3 to ensure the real-time and accuracy of the data. By detecting the thickness change of the flange ring 3 after thermal expansion, its sealing performance under high temperature conditions can be evaluated. If the flange ring 3 undergoes significant deformation or thickness changes after heating, it may cause sealing failure. Through detailed inspection of the flange ring 3, its dimensional stability under different temperature conditions can be ensured, thereby ensuring the connection quality of the Dewar ring body and other mounting parts. The function of the spring 612 is to maintain the contact force between the absolute value scale 66 and the flange ring 3, ensuring that when the flange ring 3 is heated and expanded, the scale can accurately follow the changes of the flange ring 3.

[0049] The present invention also provides an application method of a high-temperature superconducting Tokamak Dewar ring measuring device. The specific application method of the Tokamak Dewar ring measuring device is as follows: S1, install the heating mechanism 8 on the inner wall of the Dewar ring body 2, then install the top cover 1 on the Dewar ring body 2 so that the two flange rings 3 are aligned and fixed with bolts, and then the two sets of installation mechanisms 4 are butt-mounted below the flange rings 3; S2, when testing the Dewar ring body 2 and the flange ring 3, the heating mechanism 8 heats up and transfers the temperature to the two flange rings 3, and the influence of the temperature on the size of the flange ring 3 after installation is detected by heating up, and the detection mechanism 5 can detect the thermal expansion value of the flange ring 3 at different temperatures; S3. The curvature detection mechanism 7 can detect the change in the surface curvature of the flange ring 3 after the temperature is increased, and the thickness detection mechanism 6 is provided to detect the tightness between the two flange rings 3 after installation according to the different temperatures of the flange rings 3.

[0050] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-temperature superconducting Tokamak Dewar ring measuring device, comprising a Dewar ring (2), wherein a top cover (1) is arranged at the upper end of the Dewar ring (2), and flange rings (3) are arranged on the outer surfaces of the top cover (1) and the Dewar ring (2), characterized in that: The lower end of the flange ring (3) is fixedly mounted with two mounting mechanisms (4) in a circular ring shape by bolts, the upper ends of the two mounting mechanisms (4) are each provided with a detection mechanism (5) for detecting the thermal expansion coefficient of the flange ring (3), the interior of the two detection mechanisms (5) is each provided with a curvature detection mechanism (7) for detecting the curvature change of the flange ring (3) after being heated, one side of the two curvature detection mechanisms (7) is each provided with a thickness detection mechanism (6) for detecting the thickness change of the two flange rings (3) after being heated and collided, and the interior of the top cover (1) and the Dewar ring body (2) are jointly provided with a heating mechanism (8) for heating the two flange rings (3); The thickness detection mechanism (6) comprises a mounting shell (62), a support rod (65) being arranged on the inner wall of the mounting shell (62), a partition plate (611) being arranged in the middle of the inner wall of the mounting shell (62), an absolute value scale (66) being arranged on the outer surface of the support rod (65) and on both sides of the partition plate (611), and a plurality of scale holes (60) being arranged on the outer surface of the absolute value scale (66) and being distributed at equal intervals.

2. The high temperature superconducting Tokamak Dewar ring measurement device according to claim 1, characterized in that: The mounting mechanism (4) comprises a ball seat (43), a plurality of balls (44) are arranged inside the ball seat (43), a slip ring (42) is slidably mounted inside the ball seat (43), and a mounting seat (41) is arranged at the upper end of the slip ring (42).

3. The high temperature superconducting Tokamak Dewar ring measurement device according to claim 1, characterized in that: The detection mechanism (5) comprises a base (53), a circumference measuring instrument (52) is arranged on one side of the upper end of the base (53), the base (53) is fixedly mounted on the upper end of the mounting seat (41), a data detection box (51) is arranged on the upper end of the base (53), and two detection rods (54) are symmetrically arranged on one side of the data detection box (51).

4. The high temperature superconducting Tokamak Dewar ring measurement device according to claim 3, characterized in that: A slide bar (56) is slidably mounted inside the detection rod (54); a ring plate (58) is provided in the middle of the outer surface of the slide bar (56); and a tension spring (57) is sleeved on the outer surface of the ring plate (58); a roller (55) is provided at one end of the slide bar (56) and an iron core (59) is provided at the other end; a secondary coil (512) and a primary coil (511) are provided on one side of the inner wall of the detection rod (54); and the secondary coil (512) and the primary coil (511) are sleeved on the outside of the iron core (59).

5. The high temperature superconducting Tokamak Dewar ring measurement device according to claim 1, characterized in that: The curvature detection mechanism (7) comprises a mounting ring (72), a support shaft (73) is arranged in the middle of the mounting ring (72), and the support shaft (73) is fixedly mounted on the upper end of the base (53), a bearing (75) is rotatably mounted on the outer surface of the support shaft (73) and located inside the mounting ring (72), and a torsion spring (74) is arranged on the outer surface of the support shaft (73) and located at the upper end of the bearing (75).

6. The high temperature superconducting Tokamak Dewar ring measurement device according to claim 5, characterized in that: A connecting rod (71) is provided on one side of the outer surface of the bearing (75), a shaft roller (76) is provided on one end of the connecting rod (71), an inclination sensor (77) is provided on one side of the outer surface of the bearing (75), a transmission line (78) is provided on one side of the inclination sensor (77), and one end of the transmission line (78) is electrically connected to the data detection box (51).

7. The high temperature superconducting Tokamak Dewar ring measurement device according to claim 1, characterized in that: Two ultra-clear CMOS sensors (68) are symmetrically arranged on the inner wall of the mounting shell (62), high-power LEDs (69) corresponding to the positions of the ultra-clear CMOS sensors (68) are arranged on both sides of the partition (611), and notches (64) are opened on both sides of the mounting shell (62).

8. The high temperature superconducting Tokamak Dewar ring measurement device according to claim 7, characterized in that: The inner wall of the mounting shell (62) is provided with two slide blocks (67), the interiors of the two slide blocks (67) are provided with springs (612), one end of the two absolute value scales (66) are provided with arc bead rods (63), the outer surface of the mounting shell (62) is provided with a data line (61), and one end of the data line (61) is electrically connected to the data detection box (51), and the mounting shell (62) is fixedly mounted on one side of the connecting rod (71).

9. The high temperature superconducting Tokamak Dewar ring measurement device according to claim 1, characterized in that: The heating mechanism (8) comprises a temperature-insulating ring (81), the inner wall of the temperature-insulating ring (81) being provided with two heat-conducting ring plates (82), the interiors of the two heat-conducting ring plates (82) being provided with heating wires (83), elastic rings (84) being provided on both upper and lower sides of the temperature-insulating ring (81), and the two heat-conducting ring plates (82) being respectively tightly attached to the inner walls of the top cover (1) and the Dewar ring body (2).

10. An application method of the high temperature superconducting Tokamak Dewar ring measurement device according to any one of claims 1 to 9, characterized in that: The specific application method of the Tokamak Dewar Ring Measurement Equipment is as follows: S1. Install the heating mechanism (8) on the inner wall of the Dewar ring (2), then install the top cover (1) on the Dewar ring (2) so that the two flange rings (3) are aligned and fixed with bolts, and then butt-mount the two sets of mounting mechanisms (4) below the flange rings (3); S2. When the Dewar ring (2) and the flange ring (3) are tested, the heating mechanism (8) increases the temperature and transmits the temperature to the two flange rings (3). The effect of the temperature on the size of the flange ring (3) after installation is tested by increasing the temperature. The thermal expansion value of the flange ring (3) at different temperatures can be tested by the testing mechanism (5). S3. The curvature detection mechanism (7) can detect the change in the surface curvature of the flange ring (3) after the temperature is increased, and the thickness detection mechanism (6) is provided to detect the tightness between the two flange rings (3) after installation according to the different temperatures of the flange rings (3).

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