A superconducting magnet support skeleton, superconducting motor and method of use

Abstract

The application relates to the technical field of superconducting motors, in particular to a superconducting magnet support framework, a superconducting motor and a use method. The superconducting magnet support framework comprises a framework body, the framework body is provided with a first flow channel, the first flow channel is suitable for flowing with a cooling medium, and the outer circumferential surface of the framework body is suitable for winding a superconducting coil; a cold conducting plate is arranged on the outer circumferential surface of the framework body, and the cold conducting plate is fixedly connected with the framework body. The application separates the structure for cooling the superconducting coil and supporting the superconducting coil of the superconducting motor, thereby reducing the compactness of the superconducting coil and the problem that the superconducting coil occupies a larger space in the superconducting motor, and the application provides the superconducting magnet support framework, the superconducting motor and the use method.

Description

Technical Field

[0001] This invention relates to the field of superconducting motor technology, specifically to a superconducting magnet support frame, a superconducting motor, and a method of using it. Background Technology

[0002] Offshore wind energy, as a clean and renewable energy source, is rapidly developing, and offshore wind farms are attracting increasing attention worldwide. As wind power generation expands from onshore to offshore, to improve efficiency and reduce the cost per unit capacity, single-unit capacities are increasing. 5MW wind turbines are already in operation, and international research is currently underway on 10MW or larger capacity wind turbines. Due to the high current-carrying capacity of high-temperature superconducting materials, high-temperature superconducting coils can generate higher magnetic flux density compared to traditional copper windings and permanent magnets. Therefore, high-temperature superconducting wind turbines feature high torque density, light weight, small size, and high efficiency. Consequently, superconducting motors are considered one of the best choices for large-scale offshore wind power applications.

[0003] As a key component of superconducting motors, the superconducting excitation coil provides a considerable magnetic load to the motor while also bearing enormous electromagnetic forces. Therefore, the superconducting coil needs to be fixed to a supporting structure to form a superconducting magnet. Furthermore, mainstream superconducting materials require cryogenic environments to enter the superconducting state, necessitating a corresponding cryogenic cooling system to maintain the normal operation of the superconducting magnet. Currently, existing superconducting motors separate the structures used to cool and support the superconducting coil, thus reducing the coil's compactness and occupying a significant amount of space within the motor. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art where the superconducting motor separates the structures used to cool the superconducting coil and support the superconducting coil, thereby reducing the compactness of the superconducting coil and occupying a large space in the superconducting motor, so as to provide a superconducting magnet support frame, a superconducting motor and a method of using it.

[0005] To address the above problems, the present invention provides a superconducting magnet support frame, comprising:

[0006] The skeleton body has a first flow channel, in which a cooling medium is suitable for flowing, and the outer peripheral surface of the skeleton body is suitable for winding a superconducting coil.

[0007] A cooling plate is disposed on the outer peripheral surface of the frame body and is fixedly connected to the frame body.

[0008] Optionally, the skeleton body is provided with a receiving cavity, which is connected to the first flow channel.

[0009] Optionally, it also includes a cover plate, which is spaced apart from the cold guiding plate and is respectively arranged along the axial direction of the frame body.

[0010] Optionally, the cover plate is provided with a second flow channel, and the first flow channel and the second flow channel are connected.

[0011] Optionally, the inner diameters of the first flow channel and the second flow channel are equal.

[0012] Optionally, it also includes a base plate, wherein the cold guiding plate is disposed between the base plate and the cover plate, and the base plate and the cold guiding plate are spaced apart.

[0013] Optionally, it also includes a connecting seat, which is fixedly connected to the frame body.

[0014] A superconducting motor includes the superconducting magnet support frame described above.

[0015] Optionally, it also includes a cryogenic cooling component for providing a cooling medium.

[0016] A method for using a superconducting magnet support frame, wherein the cooling medium flowing in the first channel generates cooling energy that is transferred to the superconducting coil via a cooling plate to cool the superconducting coil.

[0017] The technical solution of this invention has the following advantages:

[0018] 1. The superconducting magnet support frame provided by the present invention includes: a frame body having a first flow channel, wherein a cooling medium is suitable for flowing in the first flow channel, and a superconducting coil is suitable for winding on the outer peripheral surface of the frame body; a cold conducting plate being disposed on the outer peripheral surface of the frame body, and the cold conducting plate being fixedly connected to the frame body.

[0019] By connecting the cold-conducting plate to the frame body, the heat generated by the wound superconducting coil during operation is transferred from the cold-conducting plate to the frame body, and then exchanged with the heat by the cooling medium in the first flow channel set on the frame body, thereby achieving the purpose of cooling the superconducting coil. At the same time, connecting the cold-conducting plate to the frame body, transferring the cooling capacity through the cold-conducting plate, and setting the first flow channel on the frame body improves the compactness of the overall structure.

[0020] 2. The superconducting magnet support frame provided by the present invention has a receiving cavity in the frame body, which is connected to a first flow channel. The cooling medium flowing in the first flow channel enters the receiving cavity, thereby increasing the heat exchange area with the cold conduction plate through the receiving cavity.

[0021] 3. The superconducting magnet support frame provided by the present invention further includes a cover plate, which is spaced apart from a cooling plate. The cover plate and the cooling plate are respectively arranged along the axial direction of the frame body, and a superconducting coil is accommodated between the cover plate and the cooling plate.

[0022] 4. The superconducting magnet support frame provided by the present invention has a cover plate with a second flow channel, and the first flow channel and the second flow channel are connected to each other, so that the cooling medium enters the receiving cavity after passing through the second flow channel and the first flow channel in sequence.

[0023] 5. The superconducting magnet support frame provided by the present invention has the same inner diameter of the first flow channel and the same inner diameter of the second flow channel to ensure the stability of the cooling medium flow rate.

[0024] 6. The superconducting magnet support frame provided by the present invention further includes a base plate, a cold-conducting plate disposed between the base plate and the cover plate, and the base plate and the cold-conducting plate are spaced apart to accommodate the superconducting coil between the base plate and the cold-conducting plate.

[0025] 7. The superconducting magnet support frame provided by the present invention also includes a connecting seat, which is fixedly connected to the frame body, thereby reducing heat leakage caused by heat conduction.

[0026] 8. A superconducting motor, which has the advantages described in any of the preceding claims due to the use of a superconducting magnet support frame.

[0027] 9. The superconducting motor provided by the present invention further includes a cryogenic cooling component, which provides a cooling medium. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a superconducting magnet support frame provided in an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the superconducting magnet support frame provided in an embodiment of the present invention from another angle.

[0031] Explanation of reference numerals in the attached drawings: 1. Frame body; 2. Cover plate; 3. Cooling plate; 4. Base plate; 5. Second flow channel; 6. First flow channel; 7. Receiving cavity; 8. Connecting seat. Detailed Implementation

[0032] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] like Figure 1 One specific embodiment of the superconducting magnet support frame shown includes: a frame body 1, and a base plate 4 and a cover plate 2 disposed on the outer peripheral surfaces at both ends of the frame body 1. Specifically, the cross-section of the frame body 1 is circular.

[0037] like Figure 1 As shown, the base plate 4 and the cover plate 2 are spaced apart along the axial direction of the frame body 1, and the base plate 4 and the cover plate 2 are located at both ends of the frame body 1, respectively. Figure 1 As shown, five cooling plates 3 are provided between the base plate 4 and the cover plate 2. The base plate 4 and the cooling plates 3, adjacent cooling plates 3, and cooling plates 3 and the cover plate 2 are spaced apart, with the spaces suitable for winding superconducting coils. Figure 1As shown, the frame body 1 has a first flow channel 6 and a receiving cavity 7, which are connected. The cover plate 2 has a second flow channel 5, which is connected to the first flow channel 6. The inner diameter of the first flow channel 6 is equal to the inner diameter of the second flow channel 5. The first flow channel 6 and the second flow channel 5 are suitable for the flow of cooling medium, and the receiving cavity 7 is suitable for containing the cooling medium. Specifically, the cooling medium is liquid, and the cross-section of the receiving cavity 7 is rectangular. It should be noted that the frame body 1, the base plate 4, the cover plate 2, and the cold guiding plate 3 are all made of high thermal conductivity and high strength materials, such as copper. For ease of manufacturing, the frame body 1, the base plate 4, the cover plate 2, and the cold guiding plate 3 are integrally formed.

[0038] like Figure 1 As shown, it also includes a connecting seat 8, which is fixedly connected to the frame body 1 by a snap-fit ​​connection. The connecting seat 8 and the frame body 1 are connected at one end of the base plate 4. Specifically, the connecting seat 8 has a circular cross-section and is made of a material with low thermal conductivity and high strength, such as G10 (glass fiber and resin rolled composite material).

[0039] A superconducting motor includes the superconducting magnet support frame described above, and also includes a support member and a cryogenic cooling assembly. The support member is fixedly connected to the connecting seat 8, and the cryogenic cooling assembly is connected to the second flow channel 5.

[0040] A method of using a superconducting magnet support frame: When the superconducting coil is working, such as Figure 2 As shown, the cooling medium enters the receiving cavity 7 through the second flow channel 5 and the first flow channel 6, and then flows out through the first flow channel 6 and the second flow channel 5 from another opening. The cold energy in the receiving cavity 7 is transferred to the superconducting coil by the cold conduction plate 3 to reduce the temperature of the superconducting coil.

[0041] The superconducting magnet support frame provided by the present invention has the following advantages: (1) The frame body 1 integrates mechanical structure and heat exchange structure, which provides support for the superconducting coil and also transfers the cold energy in the receiving cavity 7 to the superconducting coil through the cold conduction plate 3; (2) It helps to improve the overall integration of the superconducting coil and the superconducting motor, making its structure more compact and effectively reducing the equivalent air gap of the superconducting motor; (3) The frame body 1 is made of high-strength and high-thermal-conductivity material, which ensures the support strength and also ensures that the cold energy from the cooling medium can be well conducted to the superconducting coil; (4) The connecting seat 8 is made of high-strength and low-thermal-conductivity material, which ensures the stable connection between the superconducting coil and the support and reduces the heat leakage caused by heat conduction; (5) The receiving cavity 7 is filled with gaseous or liquid cooling medium, which improves the compatibility with the low-temperature cooling system of the superconducting motor.

[0042] As an alternative implementation, the cross-section of the skeleton body 1 can also be rectangular, elliptical, triangular or other shapes.

[0043] As an alternative implementation, the cross-section of the cavity 7 can also be elliptical, triangular, or other shapes.

[0044] As an alternative implementation, the cross-section of the connector 8 can also be rectangular, elliptical, triangular, or other shapes.

[0045] As an alternative implementation, the frame body 1, the base plate 4, the cover plate 2, and the cooling plate 3 can also be fixedly connected by means of plugging, screwing, welding, etc.

[0046] As an alternative implementation method, the cooling medium may also be gaseous.

[0047] As an alternative implementation, the superconducting coil can also be a superconducting tape.

[0048] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A superconducting magnet support frame, characterized in that, include: The skeleton body (1) is provided with a first flow channel (6), in which a cooling medium is suitable for flowing, and a superconducting coil is suitable for winding on the outer circumferential surface of the skeleton body (1). A cooling plate (3) is provided on the outer circumferential surface of the skeleton body (1), and the cooling plate (3) is fixedly connected to the skeleton body (1); The skeleton body (1) is provided with a receiving cavity (7), which is connected to the first flow channel (6); It also includes a cover plate (2), which is spaced apart from the cooling plate (3), and the cover plate (2) and the cooling plate (3) are respectively arranged along the axial direction of the skeleton body (1); It also includes a base plate (4), the cooling plate (3) is disposed between the base plate (4) and the cover plate (2), the base plate (4) and the cooling plate (3) are spaced apart, and the space is suitable for winding superconducting coils.

2. The superconducting magnet support frame according to claim 1, characterized in that, The cover plate (2) is provided with a second flow channel (5), and the first flow channel (6) and the second flow channel (5) are connected.

3. The superconducting magnet support frame according to claim 2, characterized in that, The inner diameter of the first flow channel (6) is equal to the inner diameter of the second flow channel (5).

4. The superconducting magnet support frame according to claim 3, characterized in that, It also includes a connecting seat (8), which is fixedly connected to the skeleton body (1).

5. A superconducting motor, characterized in that, Includes the superconducting magnet support frame as described in any one of claims 1-4.

6. The superconducting motor according to claim 5, characterized in that, It also includes a cryogenic cooling component for providing a cooling medium.

7. A method of using a superconducting magnet support frame, for using the superconducting magnet support frame according to claim 1, characterized in that, The cooling medium flowing in the first channel generates cold energy, which is transferred to the superconducting coil via the cold conduction plate to cool the superconducting coil.

Images