Efficient cooling structure of accelerating tube
By setting a fin structure on the accelerator tube body, the problem of difficult or ineffective welding in existing microwave accelerator tube cooling methods is solved, achieving efficient cooling and easy maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-03
AI Technical Summary
Existing cooling methods for microwave accelerator tubes suffer from problems such as high welding difficulty or poor cooling effect. In particular, internal water cooling has a good cooling effect but is difficult to weld, and water jacket cooling is not as effective as internal water cooling.
The accelerating tube body consists of a first flange structure and a second flange structure, with a tube body and a sleeve in the middle. The tube body is composed of multiple cavities, each with fins on its outer edge. The fins are either tightly attached to the inner wall of the sleeve or have gaps. The cavities have through holes, and the fins are arranged linearly or staggered to increase the cooling area and flow path.
It achieves a more efficient cooling effect, reduces welding difficulty, has a simple structure, is easy to maintain, reduces maintenance costs and time, and ensures the stable operation of the accelerator tube.
Smart Images
Figure CN224083929U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the technical field of microwave accelerator tubes, specifically a high-efficiency cooling structure for accelerator tubes. Background Technology
[0002] A microwave accelerator tube is a key component in a particle accelerator used to accelerate charged particles. It utilizes microwave electromagnetic fields to give charged particles higher energy. Typically made of metallic materials such as copper, it has specific shapes and sizes, commonly cylindrical. Its internal structure includes periodic features, such as disk-loaded waveguide traveling-wave accelerator tubes, coaxial-coupled standing-wave accelerator tubes, and backward-wave accelerator tubes. These structures influence microwave propagation and electromagnetic field distribution, creating an electric field distribution suitable for particle acceleration within the accelerator tube. During operation, a high-frequency electromagnetic field exists inside the microwave accelerator tube. Electrons within the tube interact with the microwave field to gain energy. If the accelerator tube overheats, the physical properties of its materials may change, leading to an uneven electric field distribution within the tube. This, in turn, affects the electron acceleration effect, reducing the energy and quality of the electron beam. Therefore, cooling is necessary to ensure its performance, stability, lifespan, and operational safety.
[0003] Currently, existing microwave accelerator tubes are cooled using internal water cooling or water jacketing. Internally water-cooled accelerator tubes typically consist of multiple internally water-cooled tube elements. Each element is generally cylindrical, with a first through-hole and multiple second through-holes arranged around its circumference. The first through-hole usually serves as a beam aperture, while the second through-holes function as cooling holes. Cooling is primarily achieved through the flow of coolant within the second through-holes. While internal water cooling provides excellent cooling, it presents significant challenges in welding. The water jacket cooling structure mainly includes the accelerator tube body, the water jacket, and the support assembly. The accelerator tube body is the key component of the accelerator, which is made of oxygen-free copper precision-machined cavity brazed together. Electrons are accelerated to high energy under the action of the microwave electric field inside. The water jacket is usually made of steel and is fitted outside the accelerator tube body. A constant temperature cooling water is placed between the water jacket and the accelerator tube body. The heat generated by the accelerator tube during operation is removed by the circulation of the cooling water. The support assembly is located between the inner wall of the water jacket and the outer wall of the accelerator tube body. It is used to improve the connection strength between the accelerator tube body and the water jacket. The welding is not affected by the water jacket cooling method, but the cooling effect is not as good as that of internal water cooling. Utility Model Content
[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing microwave accelerator tubes are too simplistic. Specifically, this utility model provides a highly efficient cooling structure for the accelerator tube, which solves the problem mentioned in the background that existing microwave accelerator tubes use internal water cooling or water jacket cooling. Internal water cooling has a good cooling effect, but the welding is very difficult. Water jacket cooling does not affect welding, but the cooling effect is not as good as internal water cooling.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0006] A high-efficiency cooling structure for an accelerator tube includes an accelerator tube body. The accelerator tube body includes a first flange structure and a second flange structure. A tube body and a sleeve are disposed between the first flange structure and the second flange structure. The tube body and the sleeve are on the same axis. The tube body is composed of multiple cavities, and multiple fins are disposed on the outer edge of each cavity.
[0007] Furthermore, the edges of the fins are all in close contact with the inner wall of the sleeve;
[0008] And / or, a gap is left between the edge of the fin and the inner wall of the sleeve.
[0009] Furthermore, each of the cavities is provided with a through hole.
[0010] Furthermore, the through holes are located at the center of the cavity, and multiple through holes are linearly arranged to form a complete flow beam.
[0011] Furthermore, the fins on different cavities are arranged linearly;
[0012] And / or, the fins on different cavities are arranged in an alternating pattern.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention provides a stable cooling environment for microwave accelerator tubes through the design of the tube body, sleeve, and cavity. The finned structure increases the contact area with the surrounding air or coolant, enabling more effective heat transfer during operation, preventing overheating, and ensuring stable operation. The surrounding fins create more complex flow paths for the air or coolant, promoting fluid turbulence, reducing the thermal boundary layer thickness, and thus improving the heat exchange coefficient. This allows heat to be transferred to the cooling medium more quickly. Furthermore, the fins replace traditional support components, simplifying the structure, ensuring connection stability, and better withstanding pressure and stress during operation. This further optimizes the structure, improves cooling efficiency, reduces welding difficulty, and facilitates easier inspection, repair, and replacement of the water-cooled jacket during equipment maintenance and repair, reducing maintenance costs and time.
[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the tube structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the cavity structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the staggered distribution of the fins on the cavity of this utility model.
[0020] In the figure: 1. Accelerator tube body; 11. First flange structure; 12. Second flange structure; 13. Tube body; 14. Sleeve; 15. Cavity; 151. Through hole; 152. Fin. Detailed Implementation
[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.
[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0024] Please refer to the appendix carefully. Figure 1-4 A high-efficiency cooling structure for an accelerator tube includes an accelerator tube body 1. The accelerator tube body 1 includes a first flange structure 11 and a second flange structure 12. A tube body 13 and a sleeve 14 are disposed between the first flange structure 11 and the second flange structure 12. The tube body 13 and the sleeve 14 are on the same axis. The tube body 13 is composed of multiple cavities 15. Multiple fins 152 can be selectively and equally spaced around the outer edge of each cavity 15.
[0025] The cavity 15 inside the tube 13 can be of different shapes, such as columnar or bowl-shaped, and the specific shape is determined according to the type of accelerator tube.
[0026] The outer surface of the fin 152 may also be provided with a serrated structure, a wave structure, or an uneven structure (not shown in the figure) to further improve the cooling effect.
[0027] The above structure provides a stable cooling environment for the microwave accelerator tube. The finned structure increases the contact area with the surrounding air or coolant. According to the principle of heat transfer, the larger the heat dissipation area, the faster the heat is dissipated. This allows for more effective heat transfer during the operation of the accelerator tube, preventing overheating and ensuring stable operation. Furthermore, the surrounding fins create more complex flow paths for the air or coolant, promoting fluid turbulence, reducing the thickness of the thermal boundary layer, and thus improving the heat exchange coefficient. This allows heat to be transferred to the cooling medium more quickly. The fins replace traditional support components, resulting in a simpler structure, ensuring connection stability, and better withstanding pressure and stress during operation. The optimized structure reduces welding difficulty. Without complex support components, it is easier to inspect, repair, and replace the internal components of the water-cooled jacket during equipment maintenance and repair, reducing maintenance costs and time.
[0028] Please refer to the appendix carefully. Figure 2 and attached Figure 3 The edges of the fins 152 are all in close contact with the inner wall of the sleeve 14, and / or, a gap is left between the edges of the fins 152 and the inner wall of the sleeve 14. The fins 152 increase the contact area with the surrounding air or coolant. The larger the heat dissipation area, the faster the heat is dissipated, and the heat generated during the operation of the accelerating tube can be transferred more effectively, preventing the accelerating tube from overheating. Each cavity 15 is provided with a through hole 151, located at the center of the cavity 15. Multiple through holes 151 are linearly arranged to form a complete beam channel, realizing stable transmission of the electron beam along the axial direction of the accelerating tube.
[0029] Please refer to the appendix carefully. Figure 4 The fins 152 on different cavities 15 are arranged linearly; and / or the fins 152 on different cavities 15 are arranged in an alternating manner. When the fins 152 between cavities 15 form a straight line, the cooling effect is better than that of internal water cooling. When the fins 152 between different cavities 15 are alternating, they can agitate the cooling fluid and increase the cooling effect.
[0030] It should be noted that the cooling structure of axially coupled standing wave accelerator tubes or reverse wave accelerator tubes can also adopt the same fin distribution method 152. Other accelerator tubes with circumferentially symmetrical shapes can also adopt the fin distribution method in this scheme.
[0031] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.
Claims
1. A high-efficiency cooling structure of an acceleration tube, comprising an acceleration tube body (1) including a first flange structure (11) and a second flange structure (12), characterized in that, The first flange structure (11) and the second flange structure (12) are provided with a pipe body (13) and a sleeve (14), the pipe body (13) and the sleeve (14) are coaxial, the pipe body (13) is composed of a plurality of cavities (15), and the outer edge of each cavity (15) is surrounded by a plurality of fins (152).
2. The high-efficiency cooling structure of an acceleration tube according to claim 1, wherein The edges of the fins (152) are in close contact with the inner wall of the sleeve (14). And / or, a gap is left between the edges of the fins (152) and the inner wall of the sleeve (14).
3. The high-efficiency cooling structure of an acceleration tube according to claim 1, wherein Each cavity (15) is provided with a through hole (151).
4. The high-efficiency cooling structure of an acceleration tube according to claim 3, wherein The through hole (151) is located at the center of the cavity (15), and a plurality of through holes (151) are linearly arranged to form a complete beam channel.
5. The high-efficiency cooling structure of an acceleration tube according to claim 4, wherein The fins (152) on different cavities (15) are linearly arranged. And / or, the fins (152) on different cavities (15) are staggered.