Rapid cooling device for MRI magnet

Abstract

The utility model provides an MRI magnet rapid cooling device, and relates to the technical field of MRI magnet cooling, the MRI magnet rapid cooling device comprises an annular frame, an annular groove plate is fixedly mounted on one side of the annular frame, a plurality of heat conduction plates are fixedly mounted in the annular groove plate, and a mounting space is reserved between the plurality of heat conduction plates and is used for accommodating an MRI magnet. A plurality of heat conducting plates are arranged in the annular groove plate, and the mounting space for mounting the magnet is reserved, so that a cooling medium can be more effectively contacted with the surface of the magnet, the heat exchange efficiency is improved, the arrangement of the heat conducting plates also increases the heat conducting area, the heat dissipation speed is further accelerated, the rapid cooling of the MRI magnet is realized, and the service life of the MRI magnet is prolonged. And the influence of heat on the MRI magnet is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of MRI magnet cooling, in particular to a MRI magnet rapid cooling device. Background Art

[0002] In the field of magnetic resonance imaging (MRI), the performance and stability of magnets are directly related to image quality and resolution. Magnets are core components of MRI technology. MRI magnets, especially superconducting magnets, must operate at extremely low temperatures (typically close to absolute zero) to maintain their superconducting state and generate a stable and powerful magnetic field. This characteristic causes the magnets to generate significant heat over extended periods of operation. Failure to effectively dissipate heat will lead to increased magnet temperature, decreased superconducting performance, and even possible magnet quenching, seriously impacting the normal operation of the MRI system and image quality. Therefore, we have addressed this issue by proposing a rapid cooling device for MRI magnets. Summary of the Invention

[0003] The purpose of the utility model is to solve the problem that the existing magnet generates significant heat energy during long-term operation, and the temperature of the magnet rises, resulting in a decrease in superconducting performance.

[0004] In order to achieve the above-mentioned purpose of the invention, the present invention provides an MRI magnet rapid cooling device to improve the above-mentioned problem.

[0005] The specific application is as follows:

[0006] A rapid cooling device for an MRI magnet comprises an annular frame, an annular groove plate is fixedly mounted on one side of the annular frame, a plurality of heat conducting plates are fixedly mounted in the annular groove plate, and installation spaces are reserved between the plurality of heat conducting plates for accommodating the MRI magnet.

[0007] As a preferred technical solution of the present application, a plurality of threaded holes are provided through the annular groove plate, and the threaded holes are located in the installation space, and the threaded holes are used to install the MRI magnet.

[0008] As a preferred technical solution of the present application, the annular frame is provided with a guide groove, and one end of the heat conducting plate penetrates into the guide groove.

[0009] As a preferred technical solution of the present application, a notch is provided at one end of the heat conducting plate located in the guide groove.

[0010] As a preferred technical solution of the present application, a conveying member is provided between the annular frame and the guide groove, and the conveying member is used for conveying the cooling medium.

[0011] As a preferred technical solution of the present application, the conveying member includes two second conveying pipes fixedly mounted on the annular frame, and one end of the two second conveying pipes extends into the guide groove.

[0012] As a preferred technical solution of the present application, one end of the two second conveying pipes located in the guide groove is bent, and the bending directions of the two second conveying pipe ends are opposite.

[0013] As a preferred technical solution of the present application, the other ends of the two second delivery pipes extend to the outside of the annular frame, and the first delivery pipe is fixedly connected between one ends of the two second delivery pipes located outside the annular frame.

[0014] As a preferred technical solution of the present application, a discharge pipe is also fixedly mounted on the annular frame, and the discharge pipe is connected to the guide groove.

[0015] As a preferred technical solution of the present application, a plurality of connecting seats are fixedly installed on the outer peripheral side of the annular frame, and the connecting seats are provided with mounting holes.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the scheme of this application:

[0018] In order to solve the problem in the prior art that magnets generate significant heat energy during long-term operation, and the temperature of the magnets increases, resulting in a decrease in superconducting performance, the present application arranges several heat-conducting plates in the annular groove plate and leaves installation space for installing magnets, so that the cooling medium can more effectively contact the surface of the magnet, thereby improving the heat exchange efficiency. The arrangement of the heat-conducting plates also increases the heat conduction area, further accelerating the heat dissipation rate, achieving rapid cooling of the MRI magnet, and reducing the impact of heat on the MRI magnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the MRI magnet rapid cooling device provided in this application;

[0020] Figure 2 An exploded view of the MRI magnet rapid cooling device provided in this application;

[0021] Figure 3 A schematic diagram of the structure of the annular groove plate of the MRI magnet rapid cooling device provided in this application from a bottom view;

[0022] Figure 4 This is a schematic diagram of the top view of the MRI magnet rapid cooling device provided in this application.

[0023] Indicated in the figure:

[0024] 1. Ring frame; 101. Ring groove plate; 102. Heat conducting plate; 103. Notch; 104. Threaded hole; 105. Diversion groove;

[0025] 2. First delivery pipe; 201. Second delivery pipe; 202. Discharge pipe;

[0026] 3. Connecting seat. DETAILED DESCRIPTION

[0027] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] As mentioned in the background, magnets generate significant heat during long-term operation. If heat cannot be effectively dissipated, the magnet temperature will rise, the superconducting performance will decrease, and it may even cause the magnet to quench, seriously affecting the normal operation of the MRI system and image quality.

[0029] In order to solve this technical problem, the utility model provides an MRI magnet rapid cooling device, which is used for rapid cooling of MRI magnets.

[0030] Specifically, please refer to Figures 1-4 , the MRI magnet rapid cooling device specifically includes:

[0031] The annular frame 1 has an annular groove plate 101 fixedly mounted on one side of the annular frame 1 , and a plurality of heat conducting plates 102 fixedly mounted in the annular groove plate 101 . An installation space is reserved between the plurality of heat conducting plates 102 , and the installation space is used to accommodate an MRI magnet.

[0032] The utility model provides an MRI magnet rapid cooling device. In this application, a plurality of heat conducting plates 102 are arranged in an annular groove plate 101, and installation space is left for installing magnets. This allows the cooling medium to more effectively contact the magnet surface, thereby improving the heat exchange efficiency. The arrangement of the heat conducting plates 102 also increases the heat conduction area, further accelerating the heat dissipation rate, achieving rapid cooling of the MRI magnet, and reducing the impact of heat on the MRI magnet.

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] Example 1, please refer to Figures 1-4 , a MRI magnet rapid cooling device includes an annular frame 1, an annular groove plate 101 is fixedly installed on one side of the annular frame 1, and several heat-conducting plates 102 are fixedly installed in the annular groove plate 101. Installation space is left between the several heat-conducting plates 102, and the installation space is used to accommodate the MRI magnet; the present application arranges several heat-conducting plates 102 in the annular groove plate 101 and leaves installation space for installing magnets, so that the cooling medium can more effectively contact the magnet surface, thereby improving the heat exchange efficiency. The arrangement of the heat-conducting plates 102 also increases the heat conduction area, further accelerates the heat dissipation speed, realizes rapid cooling of the MRI magnet, and reduces the impact of heat on the MRI magnet.

[0037] Example 2 further optimizes the MRI magnet rapid cooling device provided in Example 1. Specifically, Figure 3 and Figure 4 As shown, a plurality of threaded holes 104 are formed through the annular groove plate 101. The threaded holes 104 are located in the installation space and are used to install the MRI magnet. After the MRI magnet is fixed to the interior of the installation space by bolts, the ends of the bolts pass through the threaded holes 104, so that the bolts are in direct contact with the cooling medium, which can achieve heat conduction to the middle part of the MRI magnet.

[0038] Further, such as Figure 2 As shown, the annular frame 1 is provided with a guide groove 105, and one end of the heat conducting plate 102 is inserted into the guide groove 105. The guide groove 105 is used to transport the cooling medium and enables the heat conducting plate 102 to directly contact the cooling medium, thereby improving the cooling effect on the MRI magnet.

[0039] Further, such as Figure 3 As shown, a notch 103 is provided at one end of the heat conducting plate 102 located in the guide groove 105 . The notch 103 can reduce the influence of the heat conducting plate 102 on the cooling medium in the guide groove 105 .

[0040] Example 3 further optimizes the MRI magnet rapid cooling device provided in Example 1 or 2. Specifically, a conveying member is provided between the annular frame 1 and the guide groove 105. The conveying member is used to convey the cooling medium. The cooling medium can be liquid nitrogen or liquid helium.

[0041] Further, such as Figure 1-Figure 2 As shown, the conveying member includes two second conveying pipes 201 fixedly mounted on the annular frame 1, one end of each of the two second conveying pipes 201 extends into the guide groove 105. The use of two second conveying pipes 201 for conveying can facilitate the uniformity of the flow of the cooling medium in the guide groove 105.

[0042] Further, such as Figure 2 As shown, one end of the two second delivery pipes 201 located in the guide groove 105 is bent, and the bending directions of the two second delivery pipes 201 are opposite. This arrangement makes the flow of the cooling medium in the guide groove 105 more uniform.

[0043] Further, such as Figure 1 and Figure 2 As shown, the other ends of the two second delivery pipes 201 extend to the outside of the annular frame 1, and a first delivery pipe 2 is fixedly connected between one ends of the two second delivery pipes 201 located outside the annular frame 1. The first delivery pipe 2 is used to deliver cooling medium to the two second delivery pipes 201.

[0044] Further, such as Figure 2 As shown, a discharge pipe 202 is fixedly mounted on the annular frame 1 . The discharge pipe 202 is in communication with the guide groove 105 . The discharge pipe 202 is used to discharge the cooling medium in the guide groove 105 .

[0045] Further, such as Figure 1 As shown, a plurality of connecting seats 3 are fixedly installed on the outer peripheral side of the annular frame 1. The connecting seats 3 are provided with mounting holes. The mounting holes and the connecting seats 3 cooperate with each other to realize the installation and fixation of the annular frame 1.

[0046] The use process of the MRI magnet rapid cooling device provided by the utility model is as follows:

[0047] For ease of understanding, this application uses A to represent the MRI magnet and marks it in the figure. The MRI magnet is placed in the installation space and fixed with bolts and threaded holes 104. The cooling medium is introduced into the guide groove 105 through the first delivery pipe 2 and the second delivery pipe 201. The cooling medium exchanges heat with the MRI magnet through the heat conduction plate 102 and the annular groove plate 101 to achieve cooling of the MRI magnet.

[0048] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0049] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of protection of the patent of the present invention.

Claims

1. A rapid cooling device for an MRI magnet, characterized in that: The invention comprises an annular frame (1), an annular groove plate (101) is fixedly mounted on one side of the annular frame (1), a plurality of heat conducting plates (102) are fixedly mounted inside the annular groove plate (101), and installation spaces are reserved between the plurality of heat conducting plates (102), the installation spaces being used to accommodate an MRI magnet.

2. The MRI magnet rapid cooling device according to claim 1, characterized in that: A plurality of threaded holes (104) are provided through the annular groove plate (101), the threaded holes (104) are located in the installation space, and the threaded holes (104) are used to install an MRI magnet.

3. The MRI magnet rapid cooling device according to claim 2, characterized in that: The annular frame (1) is provided with a guide groove (105), and one end of the heat conducting plate (102) penetrates into the guide groove (105).

4. The MRI magnet rapid cooling device according to claim 3, characterized in that: A notch (103) is provided at one end of the heat conducting plate (102) located in the guide groove (105).

5. The MRI magnet rapid cooling device according to claim 4, characterized in that: A conveying member is provided between the annular frame (1) and the guide groove (105), and the conveying member is used for conveying the cooling medium.

6. The MRI magnet rapid cooling device according to claim 5, characterized in that: The conveying member comprises two second conveying pipes (201) fixedly mounted on the annular frame (1), and one end of each of the two second conveying pipes (201) extends into the guide groove (105).

7. The MRI magnet rapid cooling device according to claim 6, characterized in that: One end of each of the two second conveying pipes (201) located in the guide groove (105) is bent, and the bending directions of the ends of the two second conveying pipes (201) are opposite.

8. The MRI magnet rapid cooling device according to claim 7, characterized in that: The other ends of the two second delivery pipes (201) extend to the outside of the annular frame (1), and the first delivery pipe (2) is fixedly connected between one ends of the two second delivery pipes (201) located outside the annular frame (1).

9. The MRI magnet rapid cooling device according to claim 8, characterized in that: A discharge pipe (202) is also fixedly mounted on the annular frame (1), and the discharge pipe (202) is in communication with the guide groove (105).

10. The MRI magnet rapid cooling device according to claim 9, characterized in that: A plurality of connection seats (3) are fixedly mounted on the outer peripheral side of the annular frame (1), and the connection seats (3) are provided with mounting holes.

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