Electron accelerator and solid state insulation apparatus thereof

Abstract

Disclosed are an electron accelerator and a solid state insulation apparatus thereof. The electron accelerator comprises a housing cylinder, a base, an acceleration tube, and a high-voltage support, the housing cylinder, the acceleration tube and the high-voltage support all being disposed on the base, the high-voltage support being disposed outside the acceleration tube, and the housing cylinder being disposed outside the high-voltage support. The solid state insulation apparatus comprises a solid-state insulation cylinder and an insulation top cover, the solid-state insulation cylinder being disposed between the housing cylinder and the high-voltage support, the top of the solid-state insulation cylinder being fixed to the insulation top cover, the bottom of the solid-state insulation cylinder being disposed on the base, and the solid-state insulation cylinder comprising multiple insulation films. The insulation top cover is disposed above the high-voltage support. The present application implements solid-state insulation, overcoming problems such as large volume, complex structure and difficult maintenance caused by use of a high-voltage insulation gas in a conventional electron accelerator, and having advantages such as small volume, simple structure, convenient maintenance, and reliable safety.

Description

Electron accelerator and its solid-state insulation device Technical Field

[0001] This invention relates to an electron accelerator and its solid-state insulation device. Background Technology

[0002] A high-frequency, high-voltage accelerator is a device that uses a high-frequency electric field to accelerate charged particles. It is known that a high-frequency, high-voltage accelerator includes a sealed outer shell filled with a high-voltage insulating gas, such as sulfur hexafluoride (SF6), for insulation and heat dissipation.

[0003] However, high-voltage insulating gases have limited insulation properties and often result in bulky equipment. Meanwhile, among non-carbon dioxide greenhouse gases, sulfur hexafluoride (SF6) has the strongest greenhouse effect and is listed as one of the six restricted greenhouse gases.

[0004] SF6 has a greenhouse potential 23,500 times that of CO2 and a lifespan of approximately 3,200 years in the atmosphere. This means that 1 kg of SF6 leaked into the atmosphere has the same impact on global warming as approximately 23.5 tons of carbon dioxide, and it can be considered to remain permanently in the atmosphere, unable to be degraded, posing a huge threat to the environment.

[0005] Electron accelerators based on high-voltage insulating gases have drawbacks such as large size, complex structure, harm to the atmospheric environment, and difficulty in maintenance.

[0006] Therefore, there is a great need for an electron accelerator that can overcome the shortcomings of existing technologies, is small in size, occupies little space, requires little factory space, has a simple structure, low manufacturing cost, is safer, and is easy to move, transport and install. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the defects of existing electron accelerators that use gas insulation, which are large in size, complex in structure, harmful to the atmospheric environment and difficult to maintain. The present invention provides an electron accelerator and its solid-state insulation device that are small in size, simple in structure, easy to maintain and safe and reliable.

[0008] The present invention solves the above-mentioned technical problems through the following technical solution:

[0009] A solid-state insulation device for an electron accelerator, characterized in that the electron accelerator includes an outer shell, a base, an accelerating tube, and a high-voltage support; the outer shell, accelerating tube, and high-voltage support are all disposed on the base; the high-voltage support is disposed outside the accelerating tube; the outer shell is disposed outside the high-voltage support; and the solid-state insulation device includes a solid-state insulating cylinder and an insulating top cover.

[0010] The solid insulating cylinder is disposed between the outer shell and the high-voltage support. The top of the solid insulating cylinder is fixed to the insulating top cover, and the bottom of the solid insulating cylinder is disposed on the base. The solid insulating cylinder includes several layers of insulating film.

[0011] The insulating top cover is located above the high-voltage support.

[0012] Preferably, the electron accelerator includes a high-voltage cap, and the insulating top cover is fixed to the high-voltage cap using insulating sealant.

[0013] Preferably, the solid insulating cylinder is higher than the high-voltage cap, and an mounting protrusion is provided below the insulating top cover, the shape of the lower surface of the mounting protrusion matching the shape of the upper surface of the high-voltage cap.

[0014] Preferably, the insulating top cover includes a fixing mounting groove, and the solid insulating cylinder is installed in the fixing mounting groove.

[0015] Preferably, the solid insulating cylinder includes an inner insulating cylinder and an outer insulating cylinder, the insulating film is wrapped around the outer surface of the inner insulating cylinder, and the outer insulating cylinder is disposed on the outside of the insulating film.

[0016] Preferably, the insulating film is a polyimide film, the thickness of a single insulating film is 0.01 mm to 10 mm, and the total number of insulating film layers is 600 to 2200.

[0017] Preferably, the insulating top cover is made of polytetrafluoroethylene.

[0018] Preferably, the electron accelerator includes a high-frequency electrode disposed between the solid insulating cylinder and the outer shell.

[0019] Preferably, an insulating sealant is provided in the gap between the acceleration tube and the outer shell.

[0020] The present invention also provides an electron accelerator, characterized in that the electron accelerator includes a solid-state insulating device as described above.

[0021] The present invention also provides a method for assembling an electron accelerator, characterized in that the assembly method is used to assemble an electron accelerator as described above, the assembly method comprising:

[0022] The accelerator tube and the high-voltage bracket are mounted on the base;

[0023] The solid insulating cylinder is sleeved on the outside of the high-voltage support;

[0024] Install the insulating top cover onto the high-voltage cap at the top of the high-voltage bracket;

[0025] Fix the solid insulating cylinder to the insulating top cover;

[0026] The outer shell is fitted over the outside of the solid insulating cylinder;

[0027] After passing through the high-voltage inlet cable through the high-voltage inlet head on the outer shell, it is connected to the electrodes of the electron accelerator.

[0028] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0029] The positive and progressive effects of this invention are as follows:

[0030] This application achieves solid-state insulation, overcoming the problems of large size, complex structure, and difficult maintenance caused by the use of high-voltage insulating gas in traditional electron accelerators. It has the advantages of small size, simple structure, convenient maintenance, and safety and reliability. Attached Figure Description

[0031] Figure 1 is a schematic diagram of the structure of the electron accelerator of Embodiment 1 of the present invention.

[0032] Figure 2 is a schematic diagram of the insulation device of Embodiment 1 of the present invention.

[0033] Figure 3 is a schematic diagram of the solid insulating cylinder of Embodiment 1 of the present invention.

[0034] Figure 4 is a schematic diagram of the solid insulating cylinder of Embodiment 1 of the present invention.

[0035] Figure 5 is a schematic diagram of the structure of the insulating top cover of Embodiment 1 of the present invention. Detailed Implementation

[0036] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0037] Example 1

[0038] In this embodiment, 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 present 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 present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Referring to Figures 1 to 5, this embodiment provides an electron accelerator, which includes an outer shell 100, a base 101, an acceleration tube 102, a high-voltage support 103, and a solid-state insulation device 104.

[0040] The outer shell 100, the acceleration tube 102, and the high-pressure bracket 103 are all mounted on the base 101.

[0041] The high-pressure support 103 is located on the outside of the acceleration tube 102.

[0042] The outer shell 100 is located on the outside of the high-pressure support 103.

[0043] The solid insulation device 104 includes a solid insulation cylinder 1041 and an insulation top cover 1042.

[0044] The solid insulating cylinder 1041 is disposed in the gap between the outer shell cylinder 100 and the high-voltage support 103.

[0045] The top of the solid insulating cylinder 1041 is fixed to the insulating top cover 1042.

[0046] The bottom of the solid insulating cylinder 1041 is located on the base 101.

[0047] The solid insulating cylinder includes several layers of insulating film 1043, and the height of the insulating film is greater than the height of the high voltage support.

[0048] In this embodiment, the solid insulating cylinder includes a supporting fixed cylinder, which can be made of diamond, quartz, injection molded material, or ceramic. The insulating film is wound onto the fixed cylinder to form the solid insulating cylinder.

[0049] The insulating top cover is located above the high-voltage support.

[0050] The outer shell is used to define a chamber, specifically for housing and supporting other components of the accelerator.

[0051] Accelerator tube and high-voltage support: Located within the outer shell cavity and connected to the base. The accelerator tube and the shell together define a vacuum space. The high-voltage support is located outside the accelerator tube and is used to generate and amplify the voltage required for acceleration.

[0052] The electron accelerator includes a high-voltage cap 105, and the insulating top cover is fixed to the high-voltage cap using insulating sealant.

[0053] The solid insulating cylinder 1041 is higher than the high voltage cap 105, and an installation protrusion 1044 is provided below the insulating top cover 1042. The shape of the lower surface of the installation protrusion 1044 matches the shape of the upper surface of the high voltage cap.

[0054] The solid insulation cylinder and the insulating top cover of the solid insulation device form an insulating cavity, and the acceleration tube, high voltage support and high voltage cap are located inside the insulating cavity.

[0055] An insulating top cover is placed on the solid insulating cylinder. To further secure the connection between the components, the insulating top cover is fixed to the high-voltage cap using insulating sealant. The solid insulating cylinder is placed between the base and the insulating top cover.

[0056] The insulating top cover includes a fixing mounting groove 1045, and the solid insulating cylinder is installed in the fixing mounting groove 1045.

[0057] The solid insulating cylinder and insulating top cover with the above structure can serve as a device to fix the solid insulating device, making the solid insulating device more stable and reliable.

[0058] Referring to Figure 3, the solid insulating cylinder 1041 includes an inner insulating cylinder 1046 and an outer insulating cylinder 1047. The insulating film is wrapped around the outer surface of the inner insulating cylinder, and the outer insulating cylinder is located on the outside of the insulating film.

[0059] In other embodiments, as shown in Figure 4, only the inner insulating cylinder is needed for fixation.

[0060] The inner and outer insulating cylinders serve both a fixing function and a certain degree of insulation. By adjusting the height of the inner and outer insulating cylinders, they can be adapted to the internal structure of the electron accelerator, facilitating installation and production.

[0061] The insulating film is a polyimide film, and the thickness of a single layer of the insulating film is from 0.01 mm to 10 mm. The total number of layers of the insulating film is from 600 to 2200. In this embodiment, the total number of layers of the insulating film is preferably 1800.

[0062] The insulating film is made of solid insulating material, especially polyimide (PI) film. In other embodiments, the insulating film may also be other high-performance films such as ultra-high molecular weight polyethylene film.

[0063] The insulating top cover is made of polytetrafluoroethylene.

[0064] The inner and outer insulating cylinders are made of diamond, quartz, injection molding, or ceramic.

[0065] The electron accelerator includes a high-frequency electrode 106, which is disposed between the solid insulating cylinder and the outer shell.

[0066] An insulating sealant is provided in the gap between the accelerating tube and the outer shell. The insulating sealant is an organosilicon potting compound, which has excellent high temperature resistance, voltage resistance, and insulation properties.

[0067] The electron accelerator with solid-state insulation in this embodiment uses PI thin film winding technology to achieve solid-state insulation, which overcomes the problems of large size, complex structure and difficult maintenance caused by the use of high-pressure insulating gas in traditional electron accelerators. It has the advantages of small size, simple structure, convenient maintenance and safety and reliability.

[0068] Meanwhile, the excellent properties of the PI film ensure the stable operation and long lifespan of the accelerator. The solid-state insulated electron accelerator of this embodiment has broad application prospects in radiation processing, medicine, scientific research, and other fields.

[0069] This embodiment also provides an assembly method for an electron accelerator, the assembly method being used to assemble the electron accelerator described above, the assembly method comprising:

[0070] The accelerator tube and the high-voltage bracket are mounted on the base;

[0071] The solid insulating cylinder is sleeved on the outside of the high-voltage support;

[0072] Install the insulating top cover onto the high-voltage cap at the top of the high-voltage bracket;

[0073] Fix the solid insulating cylinder to the insulating top cover;

[0074] The outer shell is fitted over the outside of the solid insulating cylinder;

[0075] After passing through the high-voltage inlet cable through the high-voltage inlet head on the outer shell, it is connected to the electrodes of the electron accelerator.

[0076] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A solid-state insulating device for an electron accelerator, characterized in that, The electron accelerator includes an outer shell, a base, an accelerating tube, and a high-voltage support. The outer shell, accelerating tube, and high-voltage support are all mounted on the base. The high-voltage support is located outside the accelerating tube, and the outer shell is located outside the high-voltage support. The solid-state insulation device includes a solid-state insulating cylinder and an insulating top cover. The solid insulating cylinder is disposed between the outer shell and the high-voltage support. The top of the solid insulating cylinder is fixed to the insulating top cover, and the bottom of the solid insulating cylinder is disposed on the base. The solid insulating cylinder includes several layers of insulating film. The insulating top cover is located above the high-voltage support.

2. The solid insulation device as described in claim 1, characterized in that, The electron accelerator includes a high-voltage cap, and the insulating top cover is fixed to the high-voltage cap using insulating sealant.

3. The solid insulation device as described in claim 2, characterized in that, The solid insulating cylinder is higher than the high-voltage cap, and an installation protrusion is provided below the insulating top cover. The shape of the lower surface of the installation protrusion matches the shape of the upper surface of the high-voltage cap.

4. The solid insulation device as described in claim 1, characterized in that, The insulating top cover includes a fixing mounting groove, and the solid insulating cylinder is installed in the fixing mounting groove.

5. The solid insulation device as described in claim 1, characterized in that, The solid insulating cylinder includes an inner insulating cylinder and an outer insulating cylinder. The insulating film is wrapped around the outer surface of the inner insulating cylinder, and the outer insulating cylinder is located on the outside of the insulating film.

6. The solid insulation device as described in claim 1, characterized in that, The insulating film is a polyimide film, with a single layer thickness of 0.01 mm to 10 mm, and the total number of insulating layers is 600 to 2200.

7. The solid insulation device as described in claim 1, characterized in that, The insulating top cover is made of polytetrafluoroethylene.

8. The solid insulation device as described in claim 1, characterized in that, The electron accelerator includes a high-frequency electrode disposed between the solid insulating cylinder and the outer shell; and / or, Insulating sealant is provided in the gap between the acceleration tube and the outer shell.

9. An electron accelerator, characterized in that, The electron accelerator includes a solid-state insulating device as described in any one of claims 1 to 8.

10. A method for assembling an electron accelerator, characterized in that, The assembly method is used to assemble the electron accelerator as described in claim 9, and the assembly method includes: The accelerator tube and the high-voltage bracket are mounted on the base; The solid insulating cylinder is sleeved on the outside of the high-voltage support; Install the insulating top cover onto the high-voltage cap at the top of the high-voltage bracket; Fix the solid insulating cylinder to the insulating top cover; The outer shell is fitted over the outside of the solid insulating cylinder; After passing through the high-voltage inlet cable through the high-voltage inlet head on the outer shell, it is connected to the electrodes of the electron accelerator.

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