Lightweight superconducting magnetic suspension magnet device

Abstract

The utility model discloses a light-weight superconducting magnetic suspension magnet device which comprises a superconducting magnetic suspension magnet, a connecting bridge frame, a sliding roller, a wind breaking cover and a heat insulation support. The two superconducting magnetic levitation magnets are arranged on the two sides of the connecting bridge respectively; the sliding rollers are arranged at the bottom of the connecting bridge frame; the wind breaking cover is arranged at the head of the superconducting magnetic suspension magnet; the superconducting magnetic levitation magnet comprises an internal assembly, an outer Dewar, a liquid helium inlet, a helium outlet, an electrifying terminal, a signal line terminal and an evacuation opening. The outer Dewar is of a sealed structure, the interior of the outer Dewar is a hollow environment, and the inner assembly is arranged in the outer Dewar. The liquid helium inlet and the helium outlet are formed in the upper end of the superconducting magnetic levitation magnet; the electrifying terminal, the signal line terminal and the evacuation port are arranged at the tail part of the superconducting magnetic suspension magnet; the heat insulation support is arranged on the periphery of the helium tank. The problems of how to reduce the mass and improve the structural strength by optimizing the structural design while the performance of the superconducting magnetic levitation magnet is maintained are solved.

Description

Technical Field

[0001] The present application relates to the technical field of superconducting magnets, and in particular to a lightweight superconducting magnetic levitation magnet device. Background Art

[0002] With the continuous development of superconducting magnet technology, superconducting magnetic levitation magnets have shown great application potential in the fields of magnetic levitation rail trains and electromagnetic propulsion due to their unique zero resistance and high magnetic field characteristics. However, traditional superconducting magnetic levitation magnets have obvious deficiencies in structural design, especially their excessive weight, which has become a key factor restricting their application in ultra-high-speed experiments.

[0003] Although there have been some studies on the structural optimization of superconducting magnetic levitation magnets, these methods often focus on improving the performance of the magnets and ignore the control of their quality. This has led to the problem that in practical applications, superconducting magnetic levitation magnets still face the problem of being too heavy and unable to meet the needs of ultra-high-speed tests. Existing superconducting magnetic levitation magnets also have certain defects in structural strength design. During high-speed operation, the magnets need to withstand extremely large loads and accelerations, and traditional structural designs often find it difficult to ensure the stability and reliability of the magnets. This not only increases the safety risks of the magnetic levitation system, but also limits its application at higher speeds.

[0004] Therefore, how to maintain the performance of superconducting magnetic levitation magnets while reducing the mass and improving the structural strength by optimizing their structural design has become a current problem to be solved. Utility Model Content

[0005] The embodiment of the present application provides a lightweight superconducting magnetic levitation magnet device, which solves the problem of how to reduce the mass and improve the structural strength by optimizing the structural design while maintaining the performance of the superconducting magnetic levitation magnet.

[0006] The embodiment of the present application provides a lightweight superconducting magnetic levitation magnet device, including a superconducting magnetic levitation magnet, a connecting bridge, a sliding roller, a wind-breaking cover and an insulating support; the two superconducting magnetic levitation magnets are respectively arranged on both sides of the connecting bridge, and are configured to generate a magnetic field and perform magnetic levitation and propulsion; the sliding roller is arranged at the bottom of the connecting bridge, and is configured to provide support and sliding in the initial stage of operation of the superconducting magnetic levitation magnet; the wind-breaking cover is arranged at the head of the superconducting magnetic levitation magnet, and is configured to reduce air flow resistance during the operation of the superconducting magnetic levitation magnet; the superconducting magnetic levitation magnet includes internal components, an external dewar, a liquid helium inlet, a helium outlet, a power-on terminal, a signal line terminal and an evacuation port; the external dewar is a sealed structure with a hollow environment inside, and the internal components are arranged at The interior of the outer dewar; the internal components include a superconducting coil, a superconducting coil skeleton, a helium tank, a cold shield and a superconducting switch; the superconducting coil skeleton is configured to support the superconducting coil, and a reinforcing rib is arranged at the force-bearing point of the superconducting coil skeleton; the helium tank is arranged on the periphery of the superconducting coil skeleton, and the helium tank is an integrated structure; the cold shield is arranged on the outside of the superconducting coil, close to the helium tank; the superconducting switch is connected in parallel to the two ends of the superconducting coil, and is configured to automatically close when the current in the superconducting coil reaches a stable state to form a current loop; the liquid helium inlet and the helium outlet are both arranged at the upper end of the superconducting magnetic levitation magnet; the power-on terminal, the signal line terminal and the evacuation port are arranged at the tail of the superconducting magnetic levitation magnet; the thermal insulation support is arranged on the periphery of the helium tank.

[0007] In a possible implementation, the liquid helium inlet is configured to input liquid helium into the helium tank to cool the superconducting coil, and to discharge the volatilized helium from the helium outlet.

[0008] In a possible implementation, the power-on terminal is configured as a power-on interface for providing power to the superconducting magnetic levitation magnet; the signal line terminal is configured as a detection interface for detecting signals inside the superconducting magnetic levitation magnet; and the evacuation port is configured as a vacuum extraction interface for evacuating the interior of the superconducting magnetic levitation magnet.

[0009] In a possible implementation, the superconducting coil skeleton is made of aluminum alloy.

[0010] In a possible implementation, the helium tank is made of stainless steel.

[0011] In a possible implementation, the outer Dewar is made of aluminum alloy.

[0012] In a possible implementation manner, the thermal insulation support is made of a thermal insulation material.

[0013] In a possible implementation, the cold shield is made of an aluminum plate.

[0014] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0015] The embodiment of the present application provides a lightweight superconducting magnetic levitation magnet device, in which the superconducting magnetic levitation magnet can efficiently generate a magnetic field to achieve magnetic levitation and propulsion functions. The reinforcing rib design of the superconducting coil skeleton significantly improves the structural stability, ensures that the superconducting coil can maintain a stable magnetic field output during operation, and thus improves the efficiency of magnetic levitation and propulsion. The sliding roller at the bottom of the connecting bridge plays a key supporting and sliding role in the initial stage of the operation of the superconducting magnetic levitation magnet. This not only reduces the friction resistance in the startup phase, but also helps the superconducting magnetic levitation magnet to smoothly transition to the magnetic levitation state, thereby improving the reliability and stability of the entire device. The setting of the windbreaker effectively reduces the air flow resistance of the superconducting magnetic levitation magnet during operation. This can not only reduce energy loss and improve operating efficiency, but also help reduce noise and vibration. The sealing structure of the outer dewar and the careful layout of the internal components ensure the stability of the internal environment of the superconducting magnetic levitation magnet. The reasonable setting of the liquid helium inlet and the helium outlet enables the coolant to circulate smoothly, ensuring that the superconducting coil is in a low temperature state, thereby maintaining efficient magnetic field output. The parallel design of the superconducting switch enables the current in the superconducting coil to be automatically closed when the current reaches a stable state, forming a current loop. This not only simplifies the operation process, but also helps to improve the stability of the current, further enhancing the performance of the superconducting magnetic levitation magnet. The thermal insulation support can effectively isolate the heat exchange between the external environment and the helium tank. The problem of how to reduce the mass and improve the structural strength by optimizing its structural design while maintaining the performance of the superconducting magnetic levitation magnet is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the overall structure of a lightweight superconducting magnetic levitation magnet device provided in an embodiment of the present application;

[0018] Figure 2 A front view of a lightweight superconducting magnetic levitation magnet device provided in an embodiment of the present application;

[0019] Figure 3 A side view of a lightweight superconducting magnetic levitation magnet device provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of a superconducting magnetic levitation magnet structure provided in an embodiment of the present application;

[0021] Figure 5 This is an elevation view of the superconducting magnetic levitation magnet structure provided in an embodiment of the present application.

[0022] Figure numerals: 1-superconducting magnetic levitation magnet; 11-internal components; 111-superconducting coil; 112-superconducting coil skeleton; 113-helium tank; 114-cold shield; 115-superconducting switch; 12-external dewar; 13-liquid helium inlet; 14-helium outlet; 15-power terminal; 16-signal line terminal; 17-evacuation port; 2-connecting bridge; 3-sliding roller; 4-wind-breaking cover; 5-insulation support. DETAILED DESCRIPTION

[0023] In the description of the embodiments of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application 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 a limitation on the present application. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] Figure 1 The overall structural diagram of the lightweight superconducting magnetic levitation magnet device provided in the embodiment of the present application is as follows: Figure 1 As shown, the lightweight superconducting magnetic levitation magnet device includes a superconducting magnetic levitation magnet 1, a connecting bridge 2, a sliding roller 3 and a wind-breaking cover 4.

[0026] Figure 2This is a front view of a lightweight superconducting magnetic levitation magnet device provided in an embodiment of the present application. Figure 3 A side view of a lightweight superconducting magnetic levitation magnet device provided in an embodiment of the present application, such as Figure 2 and Figure 3 As shown, two superconducting magnetic levitation magnets 1 are respectively arranged on both sides of the connecting bridge 2, and are configured to generate a magnetic field and perform magnetic levitation and propulsion. When the two superconducting magnetic levitation magnets 1 are arranged on both sides of the connecting bridge 2, they interact with each other and generate magnetic field force. This magnetic field force generates a repulsive force between the magnet and the track, thereby realizing magnetic levitation. At the same time, by precisely controlling the current and magnetic field distribution inside the magnet, the propulsion function of the magnet can also be realized. The sliding roller 3 is arranged at the bottom of the connecting bridge 2 and is configured to provide support and sliding in the initial stage of operation of the superconducting magnetic levitation magnet 1. The sliding roller 3 not only provides the necessary support for the magnet to ensure its stability in the startup stage, but also provides it with a smooth sliding surface before the magnet starts to suspend, helping the magnet to smoothly enter the suspended state. The wind-breaking cover 4 is arranged at the head of the superconducting magnetic levitation magnet 1 and is configured to reduce the air flow resistance during the operation of the superconducting magnetic levitation magnet 1. The wind-breaking cover 4 presents a streamlined profile, aiming to minimize the air resistance encountered by the magnet during high-speed operation. Its existence not only reduces energy consumption, but also makes the entire device more stable during operation and reduces vibration and interference caused by external factors.

[0027] Figure 4 A schematic diagram of a superconducting magnetic levitation magnet structure provided in an embodiment of the present application, Figure 5 The elevation diagram of the superconducting magnetic levitation magnet structure provided in the embodiment of the present application is as follows: Figure 4 and Figure 5 As shown, the superconducting magnetic levitation magnet 1 includes an internal component 11, an external dewar 12, a liquid helium inlet 13, a helium outlet 14, a power supply terminal 15, a signal line terminal 16 and an evacuation port 17. The external dewar 12 is a sealed structure with a hollow environment inside. The internal component 11 is arranged inside the external dewar 12, and the material of the external dewar 12 is aluminum alloy.

[0028] Furthermore, the outer dewar 12, as the external protective structure of the superconducting magnetic levitation magnet 1, is made of aluminum alloy. This material not only ensures sufficient structural strength, but also has good sealing performance, ensuring the stable operation of the internal component 11. The interior of the outer dewar 12 is a hollow environment, providing the necessary space for the internal component 11. The internal component 11 includes a superconducting coil 111, a superconducting coil skeleton 112, a helium tank 113, a cold shield 114 and a superconducting switch 115. The superconducting coil skeleton 112 is configured to support the superconducting coil 111, and a reinforcing rib is arranged at the stress point of the superconducting coil skeleton 112, and the material of the superconducting coil skeleton 112 is an aluminum alloy. The superconducting coil 111 is responsible for generating a strong magnetic field. The superconducting coil skeleton 112 plays the role of supporting the superconducting coil 111, and is made of aluminum alloy, which is both light and strong. At the stress point of the superconducting coil skeleton 112, reinforcing ribs are specially arranged to enhance its structural strength and stability.

[0029] Specifically, the helium tank 113 is arranged on the periphery of the superconducting coil skeleton 112. The helium tank 113 is an integrated structure, and the material of the helium tank 113 is stainless steel. The main function of the helium tank 113 is to contain the coolant liquid helium, and to cool the superconducting coil 111 by evaporating the liquid helium to absorb heat, so that it is maintained in a superconducting state. The selection of stainless steel ensures the corrosion resistance and good thermal conductivity of the helium tank 113.

[0030] Specifically, the cold shield 114 is arranged outside the superconducting coil 111, close to the helium tank 113. The cold shield 114 is made of an aluminum plate. The function of the cold shield 114 is to reduce the influence of external heat on the superconducting coil 111 and maintain its low temperature environment. The aluminum plate material has excellent thermal conductivity and can effectively conduct heat to ensure the stable operation of the superconducting coil 111.

[0031] The superconducting switch 115 is connected in parallel to both ends of the superconducting coil 111, and is configured to automatically close when the current in the superconducting coil 111 reaches a stable state, forming a current loop. In the superconducting state, the current can flow unimpeded in the superconducting coil 111, and the superconducting switch 115 plays a monitoring and regulating role in this process. When the current gradually reaches a preset stable state (i.e., excitation is completed), the superconducting switch 115 will trigger its automatic closure. Once the superconducting switch 115 is closed, the current inside the superconducting coil 111 can flow unimpeded in the closed loop, and there is no need to rely on an external power supply to maintain the generation of a magnetic field. This closed-loop operation mode not only improves the operating efficiency of the magnet and reduces energy loss, but also makes the entire system more stable and reliable. In addition, the automatic closing function of the superconducting switch 115 also has the characteristics of fast response. Once the current reaches a stable state, the switch can be closed almost immediately, thereby reducing energy loss and potential magnetic field fluctuations.

[0032] Specifically, the liquid helium inlet 13 and the helium outlet 14 are both arranged at the upper end of the superconducting magnetic levitation magnet 1, and the liquid helium inlet 13 is configured to input liquid helium into the helium tank 113 to cool the superconducting coil 111, and discharge the volatilized helium from the helium outlet 14. The liquid helium inlet 13 and the helium outlet 14 are both cleverly arranged at the upper end of the superconducting magnetic levitation magnet 1, and the main task of the liquid helium inlet 13 is to accurately input liquid helium into the helium tank 113, and use the low temperature characteristics of liquid helium to cool the superconducting coil 111. The superconducting coil 111 can exhibit superconducting characteristics in a low temperature environment, so that the current can flow therein without hindrance, greatly improving the efficiency of current transmission. At the same time, as the liquid helium absorbs heat and evaporates in the helium tank 113, the volatilized helium needs to be discharged in time to maintain the stable operation of the device. At this time, the helium outlet 14 plays a key role, which can smoothly discharge the volatilized helium to prevent the pressure increase and potential safety hazards caused by the accumulation of helium. This design of liquid inlet and gas outlet not only ensures the stable cooling of the superconducting coil 111, but also ensures the safe and efficient operation of the device. At the same time, the location selection of the upper end is also convenient for operators to monitor and maintain, improving the reliability and ease of use of the entire system.

[0033] Further, the power-on terminal 15, the signal line terminal 16 and the evacuation port 17 are arranged at the tail of the superconducting magnetic levitation magnet 1. The power-on terminal 15 is configured as a power-on interface for providing power to the superconducting magnetic levitation magnet 1, the signal line terminal 16 is configured as a detection interface for detecting the internal signal of the superconducting magnetic levitation magnet 1, and the evacuation port 17 is configured as a vacuum extraction interface for evacuating the inside of the superconducting magnetic levitation magnet 1. As the power-on interface of the superconducting magnetic levitation magnet 1, the power-on terminal 15 undertakes the important task of providing electric energy for the entire device. It ensures that the current can flow into the superconducting magnetic levitation magnet 1 stably and efficiently, and provides the required electric energy for the superconducting coil 111, thereby driving the normal operation of the magnet. The signal line terminal 16, as a detection interface for detecting the internal signal of the superconducting magnetic levitation magnet 1, plays a vital monitoring role. Through the signal line terminal 16, the operator can monitor various parameters inside the magnet in real time, such as current, magnetic field strength, etc., so as to understand the operating status of the magnet in time and make necessary adjustments. The evacuation port 17 is the key to ensuring the purity of the internal environment of the superconducting magnetic levitation magnet 1 as a vacuum extraction interface. During the manufacturing and operation of the magnet, the evacuation port 17 can help remove internal gas and impurities and maintain a high vacuum environment, which is crucial for the performance stability and service life of the magnet. The three interfaces are set at the tail of the superconducting magnetic levitation magnet 1, which is not only convenient for operators to connect and monitor, but also avoids mutual interference with other components, thereby improving the integration and work efficiency of the entire device.

[0034] Specifically, the lightweight superconducting magnetic levitation magnet device also includes an insulating support 5, which is arranged on the periphery of the helium tank 113. The insulating support 5 is made of insulating material. The insulating support 5 can effectively isolate the heat exchange between the external environment and the helium tank 113. Since the magnet needs to operate at an extremely low temperature, any heat from the external environment may have an adverse effect on its performance. Therefore, the existence of the insulating support 5 is like a barrier, isolating the magnet from the external environment, ensuring that it can work in a stable low-temperature environment. The insulating support 5 can also improve the energy utilization efficiency of the magnet. By reducing heat loss, the insulating support 5 helps to maintain the low temperature state of the superconducting coil 111, so that it can transmit current more efficiently. This not only helps to improve the performance of the magnet, but also reduces energy consumption and operating costs. The design of the insulating support 5 also takes into account the stability and safety of the structure. It is made of sturdy and durable materials, can withstand certain mechanical pressure and vibration, and ensures a stable support effect during the operation of the magnet. At the same time, the insulating support 5 also has good fire and corrosion resistance, and can maintain its performance and life in various harsh environments.

[0035] It should be noted that the magnet in the present application refers to a superconducting magnetic levitation magnet 1 .

[0036] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0037] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A lightweight superconducting magnetic levitation magnet device, characterized in that: It comprises a superconducting magnetic suspension magnet (1), a connecting bridge (2), a sliding roller (3), a wind-breaking cover (4) and a heat-insulating support (5); The two superconducting magnetic levitation magnets (1) are respectively arranged on both sides of the connecting bridge (2), and are configured to generate a magnetic field and perform magnetic levitation and propulsion; The sliding roller (3) is arranged at the bottom of the connecting bridge (2) and is configured to provide support and sliding in the initial stage of operation of the superconducting magnetic levitation magnet (1); The wind-breaking cover (4) is arranged at the head of the superconducting magnetic levitation magnet (1) and is configured to reduce air flow resistance during the operation of the superconducting magnetic levitation magnet (1); The superconducting magnetic suspension magnet (1) comprises an internal component (11), an external dewar (12), a liquid helium inlet (13), a helium outlet (14), a power supply terminal (15), a signal line terminal (16) and an evacuation port (17); The outer dewar (12) is a sealed structure with a hollow interior, and the internal component (11) is arranged inside the outer dewar (12); The internal components (11) include a superconducting coil (111), a superconducting coil skeleton (112), a helium tank (113), a cold shield (114) and a superconducting switch (115); The superconducting coil skeleton (112) is configured to support the superconducting coil (111), and a reinforcing rib is provided at a stress bearing point of the superconducting coil skeleton (112); The helium tank (113) is arranged on the periphery of the superconducting coil skeleton (112), and the helium tank (113) is an integrated structure; The cold shield (114) is arranged outside the superconducting coil (111) and is in close contact with the helium tank (113); The superconducting switch (115) is connected in parallel to two ends of the superconducting coil (111), and is configured to automatically close when the current in the superconducting coil (111) reaches a stable state, thereby forming a current loop; The liquid helium inlet (13) and the helium outlet (14) are both arranged at the upper end of the superconducting magnetic levitation magnet (1); The power supply terminal (15), the signal line terminal (16) and the evacuation port (17) are arranged at the tail of the superconducting magnetic levitation magnet (1); The thermal insulation support (5) is arranged on the periphery of the helium tank (113).

2. The lightweight superconducting magnetic levitation magnet device according to claim 1, characterized in that: The liquid helium inlet (13) is configured to input liquid helium into the helium tank (113) to cool the superconducting coil (111), and to discharge volatilized helium from the helium outlet (14).

3. The lightweight superconducting magnetic levitation magnet device according to claim 1, characterized in that: The power supply terminal (15) is configured to provide a power supply interface for supplying power to the superconducting magnetic levitation magnet (1); The signal line terminal (16) is configured as a detection interface for detecting internal signals of the superconducting magnetic levitation magnet (1); The evacuation port (17) is configured as a vacuum extraction interface for evacuating the interior of the superconducting magnetic levitation magnet (1).

4. The lightweight superconducting magnetic levitation magnet device according to claim 1, characterized in that: The material of the superconducting coil frame (112) is aluminum alloy.

5. The lightweight superconducting magnetic levitation magnet device according to claim 1, characterized in that: The helium tank (113) is made of stainless steel.

6. The lightweight superconducting magnetic levitation magnet device according to claim 1, characterized in that: The material of the outer dewar (12) is aluminum alloy.

7. The lightweight superconducting magnetic levitation magnet device according to claim 1, characterized in that: The thermal insulation support (5) is made of thermal insulation material.

8. The lightweight superconducting magnetic levitation magnet device according to claim 1, characterized in that: The cold shield (114) is made of an aluminum plate.

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