High-temperature superconducting magnet detection assembly

Abstract

The utility model discloses a high-temperature superconducting magnet detection assembly, and relates to the technical field of high-temperature superconducting magnets, the high-temperature superconducting magnet detection assembly comprises a bottom plate, a liquid nitrogen Dewar tank, a connecting flange and a voltage probe, the top of the bottom plate is provided with four groups of struts with the same structure, and the tops of the struts are provided with the liquid nitrogen Dewar tank; the liquid nitrogen Dewar tank is used as a detection carrier of the high-temperature superconducting magnet to provide a stable low-temperature state for detection, and the quench state of the high-temperature superconducting magnet is detected by collecting the central wavelength variation of the fiber grating structure, the strain at each position of the high-temperature superconducting magnet and the voltage data collected by the voltage probe. The support made of stainless steel is adopted as a supporting structure, it is guaranteed that the high-temperature superconducting magnet is kept stable in the liquid nitrogen Dewar tank, and movement caused by flowing of liquid nitrogen or generation of bubbles is avoided.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature superconducting magnet detection technology, specifically a high-temperature superconducting magnet detection component. Background Technology

[0002] High-temperature superconducting magnets are magnets made of high-temperature superconducting materials. In the superconducting state, the resistance disappears completely, there is no energy loss, and they can repel external magnetic fields and maintain the stability of the magnetic field. Compared with low-temperature superconducting magnets, high-temperature superconducting magnets can work in the liquid nitrogen temperature range, which significantly reduces cooling costs and shows great application potential in many fields.

[0003] Because the electromagnetic properties of superconducting materials are complex and closely related to factors such as operating current, ambient temperature, and magnetic field, when any of these factors exceed the critical value, it is very easy for high-temperature superconducting magnets to experience quench failure. It is necessary to monitor the magnet's operating status in real time to ensure its reliable operation. Therefore, we have improved the above-mentioned existing technology based on actual usage. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-temperature superconducting magnet detection assembly includes a base plate, a liquid nitrogen Dewar jar, a connecting flange, and a voltage probe. The top of the base plate is provided with four sets of identical support columns, and the top of each support column is provided with a liquid nitrogen Dewar jar.

[0008] A connecting flange is installed on the front end of the liquid nitrogen Dewar flask, and a fiber optic grating structure is installed through the cavity of the connecting flange. The part of the fiber optic grating structure extending into the interior of the liquid nitrogen Dewar flask is wound around a high-temperature superconducting magnet.

[0009] Voltage probes are inserted into both the front and back sides of the bottom of the liquid nitrogen Dewar container, and voltage detection lines are connected to the voltage probes.

[0010] Furthermore: the high-temperature superconducting magnet is placed inside the liquid nitrogen Dewar jar, and three sets of identical supports are provided on the inner wall of the liquid nitrogen Dewar jar, with the top of the supports fitting against the bottom of the high-temperature superconducting magnet.

[0011] Furthermore: the bracket includes a support block, the bottom of which is connected to an arc-shaped plate, and the top of the support block is provided with an arc-shaped groove, and anti-slip pads are provided on the inner wall of the arc-shaped groove and the bottom outer wall of the arc-shaped plate.

[0012] Furthermore, both the support block and the arc plate are made of stainless steel, and anti-slip pads are evenly distributed on the inner wall of the arc groove and the outer wall of the arc plate.

[0013] Furthermore: the connecting flange includes a flange body, a square groove is provided at the bottom of the flange body, and a sealing ring is fitted inside the square groove. External threads are provided on the outer ring at the bottom of the flange body.

[0014] Furthermore, the sealing ring is a soft rubber seal.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model uses a liquid nitrogen Dewar jar as the detection carrier for a high-temperature superconducting magnet, providing a stable low-temperature state for detection. By collecting the change in the center wavelength of the fiber optic grating structure, the strain at various positions of the high-temperature superconducting magnet, and the voltage data collected by the voltage probe, the quenching state of the high-temperature superconducting magnet is detected. A stainless steel bracket is used as the support structure to ensure that the high-temperature superconducting magnet remains stable in the liquid nitrogen Dewar jar and to prevent it from moving due to the flow of liquid nitrogen or the generation of bubbles.

[0017] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0018] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a rear view of the present invention;

[0022] Figure 3This is a cross-sectional view of the present invention;

[0023] Figure 4 This is a schematic diagram of the connecting flange structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the support structure of this utility model.

[0025] In the diagram: 1. Base plate; 2. Support column; 3. Liquid nitrogen Dewar jar; 4. Connecting flange; 41. Flange body; 42. Square groove; 43. Sealing ring; 44. External thread; 5. Fiber grating structure; 6. Voltage probe; 7. Voltage detection line; 8. High-temperature superconducting magnet; 9. Bracket; 91. Support block; 92. Arc plate; 93. Arc groove; 94. Anti-slip pad. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Please see Figure 1-5This utility model provides a technical solution: a high-temperature superconducting magnet detection component, including a base plate 1, a liquid nitrogen Dewar jar 3, a connecting flange 4, and a voltage probe 6. The top of the base plate 1 is provided with four sets of identical support columns 2. The support columns 2 are square structures, and each of the relative inner sides of the support columns 2 is provided with an arc-shaped cross section that matches the outer wall of the liquid nitrogen Dewar jar 3. The top of the support columns 2 is provided with the liquid nitrogen Dewar jar 3. The liquid nitrogen Dewar jar 3 is a multi-layer vacuum insulation container. It reduces heat transfer through multi-layer vacuum insulation technology and low-temperature insulation materials. It is usually made of high-quality stainless steel (such as 304 stainless steel) or aluminum alloy and has the characteristics of low temperature resistance and corrosion resistance. In this application, it is used as a carrier for high-temperature superconducting magnet detection. It is prior art and will not be described in detail.

[0031] A connecting flange 4 is installed on the front end of the liquid nitrogen Dewar jar 3. The connecting flange 4 facilitates the insertion of the fiber Bragg grating structure 5. The fiber Bragg grating structure 5 is inserted through the cavity of the connecting flange 4. After the fiber Bragg grating structure 5 is inserted, the gaps in the connecting flange 4 need to be filled and sealed. The portion of the fiber Bragg grating structure 5 extending into the liquid nitrogen Dewar jar 3 is wound around the high-temperature superconducting magnet 8. It should be noted that... (Please refer to...) Figure 3 The fiber grating structure 5 is wound on the high-position superconducting magnet 8. The fiber grating structure 5 includes fiber grating string FBG1 and fiber grating string FBG2, each with multiple fiber gratings, and is connected to an external data acquisition module, which can be a demodulator.

[0032] Voltage probes 6 are inserted into both the front and rear sides of the bottom of the liquid nitrogen Dewar jar 3, and voltage detection lines 7 are connected to the voltage probes 6. The voltage detection lines 7 detect the voltage on the high-temperature superconducting magnet 8 in real time. The data acquisition module connected to the external voltage detection line 7 can be a voltage acquisition device. The data acquisition module is used to collect the center wavelength change of each fiber grating on the fiber grating structure 5 and the voltage at each position of the high-temperature superconducting magnet 8, and send them to the data processing module. The center wavelength change of the fiber grating structure 5, the strain at each position of the high-temperature superconducting magnet, and the voltage collected by the voltage probes 6 are used to detect the quenching state of the high-temperature superconducting magnet 8.

[0033] Preferably, the high-temperature superconducting magnet 8 is disposed in the inner cavity of the liquid nitrogen Dewar jar 3, and three sets of identical supports 9 are provided on the inner wall of the liquid nitrogen Dewar jar 3, with the top of the supports 9 fitting against the bottom of the high-temperature superconducting magnet 8 to support the high-temperature superconducting magnet 8.

[0034] Preferably, the support 9 includes a support block 91, and an arc-shaped plate 92 is connected to the bottom of the support block 91. The size of the arc-shaped plate 92 is adapted to the inner wall size of the liquid nitrogen Dewar jar 3. An arc-shaped groove 93 is provided on the top of the support block 91. The arc-shaped groove 93 is adapted to the outer wall of the high-temperature superconducting magnet 8. Anti-slip pads 94 are provided on the inner wall of the arc-shaped groove 93 and the bottom outer wall of the arc-shaped plate 92 to ensure that the high-temperature superconducting magnet 8 remains stable in the liquid nitrogen Dewar jar 3 and to prevent it from moving due to the flow of liquid nitrogen or the generation of air bubbles.

[0035] Preferably, both the support block 91 and the arc plate 92 are made of stainless steel. Stainless steel has good mechanical strength and corrosion resistance, is stable at low temperatures, and is not prone to embrittlement. The anti-slip pads 94 are evenly arranged on the inner wall of the arc groove 93 and the outer wall of the arc plate 92.

[0036] Preferably, the connecting flange 4 includes a flange body 41, with a square groove 42 formed at the bottom of the flange body 41, and a sealing ring 43 fitted inside the square groove 42. External threads 44 are provided on the outer bottom ring of the flange body 41. The sealing ring 43 is a soft rubber seal. It should be noted that... (See also...) Figure 1 and Figure 4 When the flange body 41 is threaded and installed via the external thread 44, the rubber sealing ring 43 is compressed and deformed, achieving excellent sealing performance.

[0037] It should be noted that the electrical components of this utility model have already combed the wire harness during operation, so there will be no problem of wire harness tangling.

[0038] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-temperature superconducting magnet detection component, characterized in that: It includes a base plate (1), a liquid nitrogen Dewar container (3), a connecting flange (4), and a voltage probe (6); The base plate (1) is provided with four sets of identical support columns (2) on the top of the base plate (1), and a liquid nitrogen Dewar tank (3) is provided on the top of the support columns (2); A connecting flange (4) is installed on the front end of the liquid nitrogen Dewar (3), and a fiber optic grating structure (5) is installed through the cavity of the connecting flange (4), and the part of the fiber optic grating structure (5) extending into the liquid nitrogen Dewar (3) is wound on a high-temperature superconducting magnet (8). Voltage probes (6) are inserted into both the front and rear sides of the bottom of the liquid nitrogen Dewar jar (3), and voltage detection lines (7) are connected to the voltage probes (6).

2. The high-temperature superconducting magnet detection component according to claim 1, characterized in that: The high-temperature superconducting magnet (8) is placed in the inner cavity of the liquid nitrogen Dewar jar (3), and three sets of identical supports (9) are provided on the inner wall of the liquid nitrogen Dewar jar (3), with the top of the supports (9) fitting against the bottom of the high-temperature superconducting magnet (8).

3. The high-temperature superconducting magnet detection component according to claim 2, characterized in that: The bracket (9) includes a support block (91), the bottom of which is connected to an arc plate (92), and the top of the support block (91) is provided with an arc groove (93), and anti-slip pads (94) are provided on the inner wall of the arc groove (93) and the bottom outer wall of the arc plate (92).

4. The high-temperature superconducting magnet detection component according to claim 3, characterized in that: Both the support block (91) and the arc plate (92) are made of stainless steel, and the anti-slip pads (94) are evenly arranged on the inner wall of the arc groove (93) and the outer wall of the arc plate (92).

5. The high-temperature superconducting magnet detection component according to claim 1, characterized in that: The connecting flange (4) includes a flange body (41), a square groove (42) is provided at the bottom of the flange body (41), and a sealing ring (43) is fitted in the inner cavity of the square groove (42). An external thread (44) is provided on the outer ring at the bottom of the flange body (41).

6. A high-temperature superconducting magnet detection component according to claim 5, characterized in that: The sealing ring (43) is a soft rubber seal.

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