Fusion depth detection method and fusion depth detection system of radiation shielding structure and fusion device

Abstract

The invention provides a fusion depth detection method and system of a radiation shielding structure and a fusion device, and relates to the technical field of fusion device manufacturing, a supporting column sequentially penetrates through a plurality of partition plates, each partition plate is connected with the supporting column in a welded mode, and the fusion depth detection method comprises the steps that a detection probe is installed on the supporting column; the detection probe is controlled to emit detection ultrasonic waves towards the welding positions of the partition plates and the supporting columns; the depth of the upper surface and the depth of the lower surface of the welding seam corresponding to each partition plate are obtained; and according to the depth of the upper surface and the depth of the lower surface, the penetration depth of the welding seam corresponding to each partition plate is obtained. According to the fusion depth detection method of the radiation shielding structure, the depth of the upper surface and the depth of the lower surface of the welding seam corresponding to each partition plate are obtained through the detection probe so as to obtain the fusion depth of the welding seam corresponding to each partition plate, the accuracy of the detection result can be improved, operation is easy, the welding quality can be detected, the welding reliability is guaranteed, and the detection efficiency is improved. The use reliability of the radiation shielding structure is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fusion device manufacturing, and in particular to a method for detecting the penetration depth of a radiation shielding structure, a system for detecting the penetration depth of a radiation shielding structure, and a fusion device. Background Art

[0002] The nuclear fusion device is provided with a vacuum chamber, and the vacuum chamber must be able to effectively reduce or eliminate the penetration of internal neutrons during the manufacturing process. Therefore, a shielding structure can be set between the inner wall and the outer wall of the vacuum chamber. The shielding structure can be installed between the inner wall and the outer wall of the vacuum chamber through support columns, and the main body of the shielding structure adopts multiple layers of austenitic stainless steel plates. The spacing between each layer of stainless steel plates is set to less than 5mm, and each layer of stainless steel plates and the support columns are filled with non-full penetration welds, that is, the root of the weld is required to be fully welded, and the upper part of the weld does not completely fill the gap between the steel plate and the support column, and according to the thickness requirements of the austenitic stainless steel plate, the penetration depth of the weld shall not be less than two-thirds of the plate thickness.

[0003] After welding multiple layers of stainless steel plates and support columns, the thickness of the welds needs to be inspected to ensure welding reliability. Existing inspection methods include visual inspection or endoscope inspection, but the spacing between each layer of stainless steel plates is small, and the endoscope probe cannot inspect the entire weld circle, resulting in missed inspections. Visual inspection can only inspect the welds of the top or bottom layer, and the inspection error is large, leaving room for improvement. Summary of the Invention

[0004] The present invention aims to address at least one of the technical problems existing in the prior art. To this end, the present invention provides a method for detecting the penetration depth of a radiation shielding structure. The method is simple to operate, can detect the penetration depth of each weld layer, and can improve the accuracy of the detection results, thereby ensuring welding reliability and enhancing the reliability of the radiation shielding structure.

[0005] According to an embodiment of the present invention, a method for detecting penetration of a radiation shielding structure includes a support column and a plurality of stacked partitions, wherein the support column is sequentially inserted through the plurality of partitions, and each partition is welded to the support column. The method for detecting penetration includes: Installing the detection probe on the support column; Controlling the detection probe to emit detection ultrasonic waves toward welding points between the plurality of partitions and the support columns; Obtaining the depth of the upper surface and the depth of the lower surface of the weld corresponding to each of the partitions; The penetration depth of the weld corresponding to each of the partitions is obtained according to the depth of the upper surface and the depth of the lower surface.

[0006] According to the method for detecting the penetration depth of the radiation shielding structure of an embodiment of the present invention, the depth of the upper surface and the depth of the lower surface of the weld corresponding to each partition are obtained by a detection probe to obtain the penetration depth of the weld corresponding to each partition, thereby improving the accuracy of the detection result. The operation is simple, and the welding quality can be tested, thereby ensuring the welding reliability, thereby improving the reliability of the radiation shielding structure, having better use effect and a wider range of applications.

[0007] According to some embodiments of the present invention, the method for detecting penetration of a radiation shielding structure, obtaining the depth of the upper surface and the depth of the lower surface of the weld corresponding to each of the partitions includes: Controlling the detection probe to move radially along the support column; During the movement of the detection probe, depth peak data of the detection ultrasonic wave on the upper surface of the weld and depth peak data of the detection ultrasonic wave on the lower surface of the weld are respectively obtained.

[0008] The method for detecting penetration of a radiation shielding structure according to some embodiments of the present invention further includes: Marking the corresponding positions of the depth peak data of the upper surface of the weld and the depth peak data of the lower surface of the weld as standard front distance positions; Controlling the detection probe to rotate around the axial direction of the support column at the standard front distance position; During the rotation of the detection probe, the depths of the upper surface and the lower surface at multiple positions in the circumferential direction of the weld are obtained.

[0009] According to some embodiments of the present invention, the method for detecting penetration of a radiation shielding structure, wherein the step of installing the detection probe on the support column includes: Installing the detection probe on the end surface of one end of the support column; The position of the detection probe is adjusted so that the detection probe is spaced apart from the peripheral wall of the support column.

[0010] According to some embodiments of the present invention, the method for detecting penetration of a radiation shielding structure further includes, before installing the detection probe on the support column: According to the specifications of the support column and the partition, the detection probe of corresponding specifications is obtained.

[0011] According to some embodiments of the present invention, in the method for detecting penetration of a radiation shielding structure, obtaining the detection probe of corresponding specifications according to the specifications of the support column and the partition includes: Obtaining the material and thickness of the support column and the partition, and obtaining the number of layers of the partition; According to the material, thickness and number of layers, obtaining the corresponding detection angle, detection frequency and wafer area of ​​the detection probe; The corresponding detection probe is obtained according to the detection angle, detection frequency and wafer area.

[0012] According to some embodiments of the present invention, the method for detecting penetration of a radiation shielding structure further includes, before installing the detection probe on the support column: The detection accuracy of the detection probe is verified.

[0013] According to some embodiments of the present invention, the method for detecting penetration of a radiation shielding structure, wherein the verifying the detection accuracy of the detection probe includes: Installing the detection probe on a standard comparison test block; Controlling the detection probe to move relative to the comparison test block and acquiring detection data of the comparison test block; The detection data is compared with the standard data of the comparison test block to determine the detection accuracy of the detection probe.

[0014] According to some embodiments of the present invention, the penetration detection method for a radiation shielding structure is connected to a configuration instrument, and the configuration instrument is provided with a measurement gate. The penetration detection method further includes: The measuring gate of the configuration instrument corresponding to the detection probe is adjusted, and the depth of the upper surface and the depth of the lower surface of the weld corresponding to the target number of layers of the partition are selected.

[0015] The present invention also provides a penetration detection system for a radiation shielding structure.

[0016] According to the penetration detection system for a radiation shielding structure according to an embodiment of the present invention, the penetration detection system is applicable to any of the above-mentioned penetration detection methods for a radiation shielding structure.

[0017] The present invention also provides a fusion device.

[0018] According to an embodiment of the present invention, a fusion device includes the above-mentioned radiation shielding structure penetration detection system. The fusion device is provided with a vacuum chamber, and an installation cavity is formed between the inner wall and the outer wall of the vacuum chamber. The radiation shielding structure is installed in the installation cavity and is used to shield neutron radiation.

[0019] The advantages of the fusion device, the penetration detection system of the radiation shielding structure, and the penetration detection method of the radiation shielding structure described above over the prior art are the same and will not be described in detail here.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which: Figure 1 This is a schematic diagram of the process of the method for detecting the penetration depth of the radiation shielding structure according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the process of the method for detecting the penetration depth of the radiation shielding structure according to an embodiment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the process of the method for detecting the penetration depth of the radiation shielding structure according to an embodiment of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the process of the method for detecting the penetration depth of the radiation shielding structure according to an embodiment of the present invention. Figure 4 ; Figure 5 This is a schematic diagram of the process of the method for detecting the penetration depth of the radiation shielding structure according to an embodiment of the present invention. Figure 5 ; Figure 6 This is a schematic diagram of the process of the method for detecting the penetration depth of the radiation shielding structure according to an embodiment of the present invention. Figure 6 ; Figure 7 This is a schematic diagram of the process of the method for detecting the penetration depth of the radiation shielding structure according to an embodiment of the present invention. Figure 7 ; Figure 8 is a waveform diagram of a method for detecting penetration of a radiation shielding structure according to an embodiment of the present invention; Figure 9 is a schematic structural diagram of a radiation shielding structure according to an embodiment of the present invention; Figure 10 is a cross-sectional view of a radiation shielding structure according to an embodiment of the present invention; Figure 11 is a schematic structural diagram of a comparison test block according to an embodiment of the present invention; Figure 12 is a cross-sectional view of a comparison test block according to an embodiment of the present invention.

[0022] Reference numerals: Radiation shielding structure 100, Support column 1, end surface 11, partition 2, weld 3, upper surface 31, lower surface 32, Detection probe 4, comparison test block 5, standard hole 51. DETAILED DESCRIPTION

[0023] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0026] Reference below Figures 1-8 A method for detecting the penetration depth of the radiation shielding structure 100 according to an embodiment of the present invention is described. The method is simple to operate, can detect the penetration depth of each layer of weld 3, and can improve the accuracy of the detection result, thereby ensuring welding reliability and improving the reliability of the radiation shielding structure 100.

[0027] like Figures 1-8 As shown, according to a method for detecting penetration of a radiation shielding structure 100 according to one embodiment of the present invention, the radiation shielding structure 100 includes a support column 1 and a plurality of stacked partitions 2. The support column 1 is sequentially inserted through the plurality of partitions 2. Each partition 2 is welded to the support column 1. The method for detecting penetration includes: S1, install the detection probe 4 on the support column 1; S2, controlling the detection probe 4 to emit detection ultrasonic waves toward the welding points between the plurality of partitions 2 and the support columns 1; S3. Obtain the depth of the upper surface 31 and the depth of the lower surface 32 of the weld 3 corresponding to each partition 2; S4. Obtain the penetration depth of the weld 3 corresponding to each partition 2 according to the depth of the upper surface 31 and the depth of the lower surface 32 .

[0028] Among them, the radiation shielding structure 100 is installed in the fusion device, and the fusion device is provided with a vacuum chamber. The vacuum chamber is the "reaction vessel" for realizing controlled fusion in the fusion device. Through the coordination of ultra-high vacuum, magnetic confinement, thermal management and fuel control functions, it provides the necessary conditions for the stable existence of plasma and the occurrence of fusion reaction. The radiation shielding structure 100 can be installed between the inner wall and the outer wall of the vacuum chamber, and can shield the high-energy neutrons generated by the fusion reaction, thereby ensuring that external equipment and personnel are protected from radiation damage and improving safety of use.

[0029] Specifically, the radiation shielding structure 100 is provided with a support column 1, which can be set to a cylindrical structure, etc. The support column 1 can be fixed between the inner wall and the outer wall of the vacuum chamber, thereby ensuring the installation reliability of the radiation shielding structure 100, and the radiation shielding structure 100 is also provided with a partition 2, which is set to multiple, and multiple partitions 2 are distributed in parallel. In this embodiment, the spacing between two adjacent partitions 2 is set to less than 5 mm, and a through hole is set at the corresponding position of each partition 2. The support column 1 can be sequentially penetrated into the through hole of each partition 2, and the inner peripheral wall of the through hole of each partition 2 can be welded to the outer peripheral wall of the support column 1, so that multiple partitions 2 can be fixed between the inner wall and the outer wall of the vacuum chamber through the support column 1, and the gaps between the multiple partitions 2 can form a cooling channel, which can be used to circulate coolant, thereby taking away the heat absorbed by the vacuum chamber wall and the heat load of plasma radiation, thereby ensuring reliability of use.

[0030] Furthermore, a detection probe 4 can be installed on the support column 1. The detection probe 4 can be constructed as a longitudinal wave oblique probe, and then the detection probe 4 can be installed at one end of the support column 1, and ultrasonic detection can be performed on the welds 3 of multiple partitions 2 along the axial direction. During the detection process, the installation end of the detection probe 4 is first fixed to one end of the support column 1, and then the detection probe 4 is controlled to open through the configuration instrument connected to the detection probe 4, so that the detection probe 4 can emit detection ultrasonic waves axially to multiple welds 3 of multiple partitions 2. The emitted detection ultrasonic waves can feed back the depth value of each weld 3 to the configuration instrument. The depth value of the weld 3 includes the depth of the upper surface 31 and the depth of the lower surface 32 of the weld 3.

[0031] And according to the depth of the upper surface 31 and the depth of the lower surface 32, the penetration depth of the weld 3 corresponding to each partition 2 is obtained, that is, along the axial direction of the support column 1, the depth of the lower surface 32 of the weld 3 is greater than the depth of the upper surface 31 of the weld 3, and the penetration depth of the weld 3 can be obtained by subtracting the depth of the upper surface 31 of the weld 3 from the depth of the lower surface 32 of the detected weld 3. In this way, the depth of the lower surface 32 and the depth of the upper surface 31 of the weld 3 corresponding to each layer of partition 2 can be measured by the detection probe 4, and then the penetration depth of the weld 3 corresponding to each layer of partition 2 can be obtained, thereby improving the accuracy of the detection result, being simple to operate, and being able to test the welding quality, thereby ensuring the welding reliability, and improving the reliability of the radiation shielding structure 100.

[0032] According to the penetration depth detection method of the radiation shielding structure of an embodiment of the present invention, the depth of the upper surface 31 and the depth of the lower surface 32 of the weld 3 corresponding to each partition 2 are obtained by the detection probe 4 to obtain the penetration depth of the weld 3 corresponding to each partition 2, thereby improving the accuracy of the detection result. The operation is simple, and the welding quality can be tested, thereby ensuring the welding reliability, thereby improving the reliability of the radiation shielding structure 100, having better use effect and a wider range of applications.

[0033] In some embodiments, as Figure 2 As shown, obtaining the depth of the upper surface 31 and the depth of the lower surface 32 of the weld 3 corresponding to each partition 2 includes: S31, controlling the detection probe 4 to move along the radial direction of the support column 1; S32 . During the movement of the detection probe 4 , the depth peak data of the detection ultrasonic wave on the upper surface 31 of the weld 3 and the depth peak data on the lower surface 32 of the weld 3 are respectively obtained.

[0034] Specifically, the detection probe 4 can be installed at one end of the support column 1 to detect the penetration depth of the weld 3 corresponding to each layer of partition 2 through the detection probe 4, and before detecting the penetration depth of the weld 3, the detection probe 4 can be installed at one end of the support column 1 and the detection probe 4 can be controlled to move radially along the support column 1. The detection probe 4 is connected to a configuration instrument. When the detection probe 4 detects the penetration depth, the detection probe 4 can feed back a waveform of the depth of the upper surface 31 and the depth of the lower surface 32 of the weld 3 corresponding to each layer of partition 2 to the configuration instrument, and when the user moves the detection probe 4, the waveform will also change accordingly.

[0035] In this way, the user can obtain the depth peak data of the upper surface 31 of the weld 3 and the depth peak data of the lower surface 32 of the weld 3 during the movement of the detection probe 4, that is, Figure 8As shown, the user can obtain the highest wave data corresponding to each layer of weld 3 by observing the waveform diagram. When the peak data is the largest, the ultrasonic echo amplitude is the strongest. At this time, the ultrasonic wave emitted by the detection probe 4 can be set vertically to the weld 3, and the optimal reflection angle of the ultrasonic wave can be obtained to ensure the accuracy of the detection results.

[0036] In some embodiments, as Figure 3 As shown, the method for detecting the penetration depth of the radiation shielding structure further includes: S5. Mark the corresponding position of the depth peak data of the upper surface 31 of the weld 3 and the depth peak data of the lower surface 32 of the weld 3 as the standard front distance position; S6, controlling the detection probe 4 to rotate around the axial direction of the support column 1 at the standard front distance position; S7. During the rotation of the detection probe 4, the depths of the upper surface 31 and the lower surface 32 at multiple positions in the circumferential direction of the weld 3 are obtained.

[0037] Specifically, before the user uses the detection probe 4 to detect the penetration depth of the weld 3, the user needs to adjust the position of the detection probe 4 to obtain the highest wave data. At this time, the depth peak data of the upper surface 31 of the weld 3 and the position corresponding to the depth peak data of the lower surface 32 of the weld 3 can be marked as the standard front section position. This position can obtain the optimal reflection angle of the ultrasonic wave to ensure the accuracy of the detection result, and the user can control the detection probe 4 to rotate around the axial direction of the support column 1 at the standard front section position. The weld 3 is arranged circumferentially around the support column 1, and the detection probe 4 is rotated around the axial direction of the support column 1, so that the detection probe 4 can detect the penetration depth of the annular weld 3 at various locations along the circumference.

[0038] In this way, the standard front section distance position of the detection probe 4 can be obtained through one adjustment, and the depth of the upper surface 31 and the depth of the lower surface 32 at various points in the circumference of the weld 3 can be obtained through the standard front section distance position to obtain the penetration depth at various points in the circumference of the weld 3, thereby ensuring the accuracy of the penetration depth detection results of the weld 3 in the circumference, and the operation is convenient, which can improve the detection efficiency.

[0039] In some embodiments, as Figure 4 As shown, installing the detection probe 4 on the support column 1 includes: S11, installing the detection probe 4 on the end surface 11 of one end of the support column 1; S12 , adjusting the position of the detection probe 4 so that the detection probe 4 is spaced apart from the peripheral wall of the support column 1 .

[0040] Specifically, if Figure 9As shown, one end of the support column 1 is provided with an end face 11, and the end face 11 is arranged perpendicular to the axial direction of the support column 1. The detection probe 4 is installed on the end face 11 of one end of the support column 1, and the detection probe 4 can move the position of the end face 11 to obtain the standard front section distance position. The end face 11 is arranged perpendicular to the axial direction of the support column 1, so that the distance between the support column 1 and the axis of the support column 1 is equal when the support column 1 rotates circumferentially according to the standard front section distance position, thereby ensuring the accuracy of the penetration depth detection at each location, and as shown in FIG. Figure 10 As shown, a conical platform is provided at one end of the support column 1 close to the end face 11, and the end face 11 is formed on the conical platform, so that the radial dimension of the end face 11 is smaller than the radial dimension of the support column 1, thereby making the detection probe 4 spaced apart from the peripheral wall of the support column 1 when the end face 11 moves, thereby ensuring the accuracy of the detection results of the detection probe 4.

[0041] In some embodiments, the method for detecting penetration of a radiation shielding structure further includes, before installing the detection probe 4 on the support column 1 : obtaining a detection probe 4 of corresponding specifications according to the specifications of the support column 1 and the partition 2 .

[0042] Specifically, before installing the detection probe 4 on the support column 1, the specifications of the detection probe 4 need to be selected. When the number of layers of the partition 2 is large or the material of the support column 1 and the partition 2 is difficult to penetrate, the detection depth of the detection probe 4 needs to be increased, that is, a detection probe 4 with a larger detection depth needs to be selected. When the number of layers of the partition 2 is small or the material of the support column 1 and the partition 2 is easy to penetrate, the detection depth of the detection probe 4 can be reduced accordingly, that is, a detection probe 4 with a smaller detection depth can be selected. In this way, the reliability of the use of the detection probe 4 can be guaranteed to detect the penetration depth of the weld 3 corresponding to each layer of the partition 2.

[0043] In some embodiments, as Figure 5 As shown, according to the specifications of the support column 1 and the partition 2, obtaining the detection probe 4 of the corresponding specifications includes: S01. Obtain the material and thickness of the support column 1 and the partition 2, and obtain the number of layers of the partition 2; S02. Obtain the corresponding detection angle, detection frequency, and wafer area of ​​the detection probe 4 according to the material, thickness, and number of layers; S03. Obtain the corresponding detection probe 4 according to the detection angle, detection frequency and wafer area.

[0044] Specifically, according to the specifications of the support column 1 and the partition 2, a detection probe 4 of corresponding specifications can be obtained, and the specifications of the support column 1 and the partition 2 include the material and thickness of the support column 1 and the partition 2, as well as the number of layers of the partition 2. In this embodiment, the support column 1 and the partition 2 can both be set to austenitic stainless steel, the partition 2 is set to be multi-layered, and the multi-layer partition 2 is set apart, and the spacing between two adjacent layers of partitions 2 is set to be no less than 5 mm. When the material of the support column 1 and the partition 2 is difficult to penetrate, and the thickness of the partition 2 is thick and the number of layers is large, it is necessary to select a detection probe 4 with a larger detection depth. When the material of the support column 1 and the partition 2 is easy to penetrate, and the thickness of the partition 2 is thin and the number of layers is small, a detection probe 4 with a smaller detection depth can be selected to ensure the reliability of the detection probe 4.

[0045] The detection angle, detection frequency and chip area of ​​the corresponding detection probe 4 can be obtained according to the material and thickness of the support column 1 and the partition 2 and the number of layers of the partition 2. According to the detection angle, detection frequency and chip area, the corresponding detection probe 4 is obtained. In this embodiment, the detection probe 4 is constructed as a small-angle longitudinal wave oblique probe and the angle is set to 5°~10°. The frequency of the detection probe 4 is set to 0.5MHz~1.5MHz, and the size of the chip in the detection probe 4 is set to be not less than 25mm 2 .

[0046] The angle of the detection probe 4 is inversely proportional to the detection depth, and the frequency and chip size of the detection probe 4 are directly proportional to the detection depth. That is, when a detection probe 4 with a larger detection depth is required, a detection probe 4 with a smaller angle and a larger frequency and chip size can be selected. When a detection probe 4 with a smaller detection depth is required, a detection probe 4 with a larger angle and a smaller frequency and chip size can be selected to meet the needs of radiation shielding structures 100 of different specifications and ensure the reliability of the detection probe 4.

[0047] In some embodiments, the method for detecting penetration of a radiation shielding structure further includes, before installing the detection probe 4 on the support column 1 : verifying the detection accuracy of the detection probe 4 .

[0048] Specifically, the detection probe 4 may be worn and damaged during use and installation, which may reduce the detection accuracy of the detection probe 4. Before installing the detection probe 4 on the support column 1, the detection accuracy of the detection probe 4 needs to be calibrated to ensure the detection accuracy of the detection probe 4, thereby ensuring the accuracy of the detection depth.

[0049] In some embodiments, as Figure 6 As shown, the verification of the detection accuracy of the detection probe 4 includes: S04, installing the detection probe 4 on the standard comparison test block 5; S05, controlling the detection probe 4 to move relative to the comparison test block 5, and obtaining detection data of the comparison test block 5; S06 : Compare the detection data with the standard data of the comparison test block 5 to determine the detection accuracy of the detection probe 4 .

[0050] Specifically, the detection probe 4 is provided with a standard comparison test block 5, the size of the comparison test block 5 is a fixed size, and the comparison test block 5 is provided with a standard hole 51. The standard hole 51 is provided in plurality, and the plurality of standard holes 51 are distributed at equal intervals along a straight line. The apertures and hole depths of the plurality of standard holes 51 are all set to be the same. In this embodiment, Figure 11-12 As shown, the length and width of the comparison test block 5 are set to 350 mm and 200 mm respectively, the number of standard holes 51 is set to ten, and the ten standard holes 51 are evenly spaced and distributed along the width direction of the comparison test block 5. The distance between the axes of two adjacent standard holes 51 is set to 20 mm, and the distance between the axes of the standard holes 51 at both ends and the long side of the comparison test block 5 is 10 mm, and the diameter of the standard hole 51 is set to 2 mm.

[0051] During calibration, the detection probe 4 can be installed on the standard comparison test block 5, and the detection probe 4 can be controlled to move on the comparison test block 5 so that the detection probe 4 obtains the waveform diagram of the maximum wave, and the detection data of the comparison test block 5 is obtained according to the waveform diagram, that is, the size data of the standard hole 51 in the comparison test block 5, and the detection data detected by the detection probe 4 is compared with the standard data of the comparison test block 5. When the detection data is consistent with the standard data, the detection accuracy of the detection probe 4 meets the use standard, and the detection probe 4 can be installed on the support column 1 for detection. When the detection data is inconsistent with the standard data, the detection accuracy of the detection probe 4 is low, and the detection probe 4 needs to be replaced and calibrated again, thereby ensuring the detection accuracy of the detection probe 4 and the accuracy of the detection data.

[0052] In some embodiments, the detection probe 4 is connected to a configuration instrument, and the configuration instrument is provided with a measuring gate. The penetration detection method also includes: adjusting the measuring gate of the configuration instrument corresponding to the detection probe 4, and selecting the depth of the upper surface 31 and the depth of the lower surface 32 of the weld 3 corresponding to the target number of partitions 2.

[0053] Specifically, the detection probe 4 is connected to the configuration instrument, and the detection probe 4 can feed back the detected data to the configuration instrument, and the configuration instrument can adjust the detection probe 4, etc. The configuration instrument is provided with a measuring gate. When the detection probe 4 performs detection, the penetration data of the weld 3 of the multi-layer partition 2 can be obtained. The user can adjust the measuring gate of the configuration instrument to obtain the depth of the upper surface 31 and the depth of the lower surface 32 of the partition 2 of the target layer. That is, in actual use, if the user needs the data of the weld 3 of the third layer of partition 2, the depth of the upper surface 31 and the depth of the lower surface 32 of the weld 3 of the third layer of partition 2 can be retrieved through the measuring gate, and then the penetration depth of the weld 3 of this layer can be calculated through the depth of the upper surface 31 and the depth of the lower surface 32. The user can also retrieve the data of one layer or multiple adjacent layers at the same time through the measuring gate, so that the user can perform detection, which is convenient to use.

[0054] In actual testing, Figure 7 As shown, the complete penetration detection process of the radiation shielding structure 100 is as follows: Parameters such as the detection angle, detection frequency and chip area of ​​the detection probe 4 are selected according to the material and thickness of the support column 1 and the partition 2, as well as the number of layers of the partition 2, to ensure the detection reliability of the detection probe 4. The selected detection probe 4 is placed on the comparison test block 5, and the detection data of the detection probe 4 can be obtained. The detection data is compared with the standard data of the comparison test block 5. When the two data are consistent, the detection accuracy of the detection probe 4 meets the use requirements, and the detection probe 4 can be installed on the end face 11 of the support column 1.

[0055] The user can adjust the installation position of the detection probe 4 on the end face 11 so that the waveform obtained by the detection probe 4 is at the highest wave, thereby improving the accuracy of the detection result. At this time, the penetration depth of the weld 3 can be calculated based on the depth of the upper surface 31 and the depth of the lower surface 32 corresponding to the weld 3 of each layer of partition 2 detected. The user can select the depth of the upper surface 31 and the depth of the lower surface 32 of the weld 3 corresponding to the required number of layers of partition 2 by adjusting the measuring gate to accurately obtain the penetration depth of the required number of layers of weld 3. The user can also rotate the detection probe 4 around the axial direction of the support column 1 at the standard front section position to obtain the depth of the upper surface 31 and the depth of the lower surface 32 at multiple circumferential positions of the weld 3, and then obtain the penetration depth of each layer of weld 3 along the circumference. The operation is convenient and can improve the accuracy of the detection results.

[0056] The present invention also provides a penetration detection system for a radiation shielding structure.

[0057] According to the penetration detection system for a radiation shielding structure according to an embodiment of the present invention, the penetration detection system is applicable to any of the above-mentioned penetration detection methods for a radiation shielding structure.

[0058] According to the penetration depth detection system of the radiation shielding structure of an embodiment of the present invention, the depth of the upper surface 31 and the depth of the lower surface 32 of the weld 3 corresponding to each partition 2 are obtained through the detection probe 4 to obtain the penetration depth of the weld 3 corresponding to each partition 2, thereby improving the accuracy of the detection result. The operation is simple, and the welding quality can be tested to ensure the welding reliability, thereby improving the reliability of the radiation shielding structure 100, with better use effect and wider scope of application.

[0059] The present invention also provides a fusion device.

[0060] According to an embodiment of the present invention, a fusion device includes the above-mentioned radiation shielding structure 100 penetration detection system. The fusion device is provided with a vacuum chamber, and an installation cavity is formed between the inner wall and the outer wall of the vacuum chamber. The radiation shielding structure 100 is installed in the installation cavity and is used to shield neutron radiation.

[0061] Specifically, the fusion device is provided with a vacuum chamber, which is formed with an inner wall and an outer wall, and the inner wall and the outer wall of the vacuum chamber are spaced apart to form an installation cavity. The radiation shielding structure 100 can be installed in the installation cavity, so that the vacuum chamber can shield the high-energy neutrons generated by the fusion reaction, thereby ensuring that external equipment and personnel are protected from radiation damage and improving safety in use. The radiation shielding structure 100 is provided with a support column 1 and a plurality of partitions 2 spaced apart at equal intervals. The support column 1 can be fixed between the inner wall and the outer wall of the vacuum chamber, thereby ensuring the installation reliability of the radiation shielding structure 100. The plurality of partitions 2 are respectively welded to the support column 1, thereby allowing the plurality of partitions 2 to be fixed in the vacuum cavity through the support column 1, thereby ensuring reliability in use.

[0062] According to the fusion device of an embodiment of the present invention, the depth of the upper surface 31 and the depth of the lower surface 32 of the weld 3 corresponding to each partition 2 are obtained through the detection probe 4 to obtain the penetration depth of the weld 3 corresponding to each partition 2, thereby improving the accuracy of the detection result. The operation is simple, and the welding quality can be tested to ensure the welding reliability, thereby improving the reliability of the radiation shielding structure 100, with better use effect and wider scope of application.

[0063] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A method for detecting penetration of a radiation shielding structure, characterized in that: The radiation shielding structure (100) comprises a support column (1) and a plurality of stacked partitions (2), wherein the support column (1) is sequentially passed through the plurality of partitions (2), and each partition (2) is welded to the support column (1). The penetration detection method comprises: Installing the detection probe (4) on the support column (1); Controlling the detection probe (4) to emit detection ultrasonic waves toward welding points between the plurality of partitions (2) and the support columns (1); Obtaining the depth of the upper surface (31) and the depth of the lower surface (32) of the weld (3) corresponding to each of the partitions (2); The penetration depth of the weld seam (3) corresponding to each of the partitions (2) is obtained based on the depth of the upper surface (31) and the depth of the lower surface (32).

2. The method for detecting penetration of a radiation shielding structure according to claim 1, wherein: The step of obtaining the depth of the upper surface (31) and the depth of the lower surface (32) of the weld (3) corresponding to each of the partitions (2) comprises: Controlling the detection probe (4) to move radially along the support column (1); During the movement of the detection probe (4), depth peak data of the detection ultrasonic wave on the upper surface (31) of the weld (3) and depth peak data of the detection ultrasonic wave on the lower surface (32) of the weld (3) are respectively obtained.

3. The method for detecting penetration of a radiation shielding structure according to claim 2, wherein: Also includes: Marking the corresponding positions of the depth peak data of the upper surface (31) of the weld (3) and the depth peak data of the lower surface (32) of the weld (3) as standard front distance positions; Controlling the detection probe (4) to rotate around the axial direction of the support column (1) at the standard front distance position; During the rotation of the detection probe (4), the depth of the upper surface (31) and the depth of the lower surface (32) at multiple positions in the circumferential direction of the weld (3) are obtained.

4. The method for detecting penetration of a radiation shielding structure according to claim 1, wherein: The step of installing the detection probe (4) on the support column (1) comprises: Mounting the detection probe (4) on an end surface (11) of one end of the support column (1); The position of the detection probe (4) is adjusted so that the detection probe (4) is spaced apart from the peripheral wall of the support column (1).

5. The method for detecting penetration of a radiation shielding structure according to claim 1, wherein: It also includes before installing the detection probe (4) on the support column (1): According to the specifications of the support column (1) and the partition (2), the detection probe (4) of corresponding specifications is obtained.

6. The method for detecting penetration of a radiation shielding structure according to claim 5, wherein: The step of obtaining the detection probe (4) of corresponding specifications according to the specifications of the support column (1) and the partition (2) comprises: Obtaining the material and thickness of the support column (1) and the partition (2), and obtaining the number of layers of the partition (2); According to the material, thickness and number of layers, obtaining the corresponding detection angle, detection frequency and wafer area of ​​the detection probe (4); According to the detection angle, detection frequency and wafer area, the corresponding detection probe (4) is obtained.

7. The method for detecting penetration of a radiation shielding structure according to claim 1, wherein: It also includes before installing the detection probe (4) on the support column (1): The detection accuracy of the detection probe (4) is verified.

8. The method for detecting penetration of a radiation shielding structure according to claim 7, wherein: The checking of the detection accuracy of the detection probe (4) includes: Installing the detection probe (4) on a standard comparison test block (5); Controlling the detection probe (4) to move relative to the comparison test block (5), and acquiring detection data of the comparison test block (5); The detection data is compared with the standard data of the comparison test block (5) to determine the detection accuracy of the detection probe (4).

9. The method for detecting penetration of a radiation shielding structure according to claim 1, wherein: The detection probe (4) is connected to a configuration instrument, and the configuration instrument is provided with a measuring gate. The penetration detection method further includes: The measuring gate of the configuration instrument corresponding to the detection probe (4) is adjusted, and the depth of the upper surface (31) and the depth of the lower surface (32) of the weld (3) corresponding to the target number of layers of the partition (2) are selected.

10. A penetration detection system for a radiation shielding structure, characterized in that: The penetration detection system is applicable to the penetration detection method of the radiation shielding structure (100) according to any one of claims 1 to 9.

11. A fusion device, characterized in that: A penetration detection system comprising the radiation shielding structure (100) according to claim 10, wherein the fusion device is provided with a vacuum chamber, an installation cavity is formed between the inner wall and the outer wall of the vacuum chamber, and the radiation shielding structure (100) is installed in the installation cavity and is used for shielding neutron radiation.

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