Vacuum acquisition structure for an electron accelerator

Abstract

This utility model specifically relates to a vacuum acquisition structure for an electron accelerator, including a shielded chamber body. A scanning box is disposed within the shielded chamber body. A first mounting hole and a second mounting hole are respectively provided on the side walls of the shielded chamber body and the scanning box. An external vacuum pipe and an internal vacuum pipe are respectively disposed on the first and second mounting holes. A flexible pipe is disposed between the external and internal vacuum pipes. The external vacuum pipe includes an outer tube and an inner tube, forming a closed cavity between them. The internal vacuum pipe has the same structure as the external vacuum pipe. The beneficial effects of this utility model are as follows: it reduces the overall height of the equipment, facilitates installation and debugging, and can adapt to the relative displacement and deformation that may occur between the scanning box and the shielded chamber during equipment use, ensuring the stability and sealing of the vacuum pipe connections, and providing good radiation shielding effect.

Description

Technical Field

[0001] This utility model relates to the field of electron accelerators, specifically to a vacuum acquisition structure for electron accelerators. Background Technology

[0002] An electron accelerator is a particle accelerator specifically designed to accelerate electrons to high speeds and high energies. Its core principle is to use an electric field to exert a force on charged particles, giving them kinetic energy.

[0003] An existing electron irradiation device for fiber curtain fabric, with publication number CN118213100A, includes a frame, a scanning box, a beam-down transmission mechanism, and a radiation shield. The radiation shield is connected to the frame, and the scanning box and the beam-down transmission mechanism are vertically aligned and both located within the radiation shield. The radiation shield comprises, from the outside to the inside, a first shielding layer, a second shielding layer, a third shielding layer, a fourth shielding layer, and a fifth shielding layer, with the end faces of the first, second, third, and fourth shielding layers arranged in a stepped manner. The radiation shield also includes, from top to bottom, a top shield, an upper side shield, a middle side shield, a lower side shield, and a bottom shield. This invention provides an electron irradiation device for fiber curtain fabric that, without altering the existing production line, incorporates a multi-segment structure for the shield. This allows for separation as needed during practical applications, facilitating maintenance and ensuring effective radiation shielding.

[0004] The existing vacuum pipeline of electron accelerators is located at the interface of the scanning box and then leads out, which will significantly increase the overall height of the equipment, occupy a large space, and make installation and debugging inconvenient. In addition, the existing vacuum pipeline is a fixed pipeline, and the scanning box and the shielding chamber will undergo relative displacement and deformation during long-term use, which will affect the stability and sealing of the vacuum pipeline connection. Therefore, a vacuum acquisition structure for electron accelerators is needed. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum acquisition structure for an electron accelerator. It uses a combination of a side-mounted external vacuum pipe, an internal vacuum pipe, and a flexible pipe to reduce the overall height of the equipment, making it easier to install and debug. It can also adapt to the relative displacement and deformation of the scanning box and the shielding chamber during the use of the equipment, ensuring the stability and sealing of the vacuum pipe connection. At the same time, the vacuum pipe is filled with lead filler to ensure the radiation shielding effect and ensure the radiation safety of the electron accelerator during operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum acquisition structure for an electron accelerator, comprising a shielded chamber body, a scanning box disposed within the shielded chamber body, a first mounting hole and a second mounting hole respectively opened on the side wall of the shielded chamber body and the side wall of the scanning box, an external vacuum pipe and an internal vacuum pipe respectively disposed on the first mounting hole and the second mounting hole, a flexible pipe disposed between the external vacuum pipe and the internal vacuum pipe, the external vacuum pipe comprising an outer tube and an inner tube, a closed cavity formed between the outer tube and the inner tube, and the internal vacuum pipe having the same structure as the external vacuum pipe.

[0007] Furthermore, the scanning box is detachably connected to the shielding chamber body, one end of the external vacuum pipe extends into the shielding chamber body and is connected to one end of the flexible pipe, and the other end of the flexible pipe is connected to the internal vacuum pipe.

[0008] Furthermore, the external vacuum pipe has multiple interfaces at one end located outside the main body of the shielded chamber.

[0009] Furthermore, the flexible pipe is specifically a corrugated hose.

[0010] Furthermore, the outer tube and the inner tube are coaxially arranged, and the enclosed cavity is filled with lead metal filler.

[0011] Furthermore, the outer and inner tubes of the external vacuum pipe are made of a metal lead-filled rubber composite material.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the use of a side-mounted external vacuum pipe and an internal vacuum pipe in combination with a flexible pipe can reduce the overall height of the equipment, facilitate installation and debugging, and adapt to the relative displacement and deformation of the scanning box and the shielding chamber during equipment use, ensuring the stability and sealing of the vacuum pipe connection.

[0013] Meanwhile, the vacuum pipes are filled with metallic lead filler to ensure the radiation shielding effect and ensure radiation safety during the operation of the electron accelerator.

[0014] Multiple interfaces are provided at one end of the external vacuum pipeline, which can be used with multiple vacuum pumping devices according to work needs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a partial structural diagram of the external vacuum pipe and the internal vacuum pipe of this utility model.

[0017] In the diagram: 1. Main body of the shielded chamber; 101. First mounting hole; 2. Scanning box; 201. Second mounting hole; 3. External vacuum pipe; 301. Outer pipe; 302. Inner pipe; 303. Metal lead filler; 4. Internal vacuum pipe; 5. Flexible pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example:

[0020] Please see Figure 1-2 The vacuum acquisition structure of an electron accelerator shown includes a shielded chamber body 1, a scanning box 2 disposed inside the shielded chamber body 1, a first mounting hole 101 and a second mounting hole 201 respectively opened on the side wall of the shielded chamber body 1 and the side wall of the scanning box 2, an external vacuum pipe 3 and an internal vacuum pipe 4 respectively disposed on the first mounting hole 101 and the second mounting hole 201, a flexible pipe 5 disposed between the external vacuum pipe 3 and the internal vacuum pipe 4, the external vacuum pipe 3 includes an outer tube 301 and an inner tube 302, a closed cavity is formed between the outer tube 301 and the inner tube 302, and the internal vacuum pipe 4 has the same structure as the external vacuum pipe 3.

[0021] The scanning box 2 is detachably connected to the shielded chamber body 1. The scanning box 2 can be disassembled, maintained, and replaced. The flexible pipe 5 is a corrugated hose. One end of the external vacuum pipe 3 extends into the shielded chamber body 1 and is connected to one end of the flexible pipe 5. The other end of the flexible pipe 5 is connected to the internal vacuum pipe 4. The use of the flexible pipe 5 can adapt to the relative displacement and deformation of the scanning box 2 and the shielded chamber body 1 during the use of the equipment, ensuring the stability and sealing of the connection between the external vacuum pipe 3 and the internal vacuum pipe 4.

[0022] Multiple interfaces are provided at one end of the external vacuum pipe 3 located outside the shielded chamber body 1. These interfaces can be connected to multiple vacuum pumping devices as needed to adjust the vacuum pumping efficiency and improve the overall applicability of the device.

[0023] The outer tube 301 and the inner tube 302 are coaxially arranged. The closed cavity of the outer tube 301 and the inner tube 302 is filled with metallic lead filler 303, which ensures the radiation shielding effect and ensures the radiation safety during the operation of the electron accelerator.

[0024] The outer and inner tubes of the external vacuum pipe 3 are made of lead-filled rubber composite material, which improves the radiation shielding effect and ensures radiation safety during the operation of the electron accelerator.

[0025] This invention employs a side-mounted external vacuum pipe 3 and an internal vacuum pipe 4 in conjunction with a flexible pipe 5. This reduces the overall height of the equipment, facilitating installation and debugging. It also adapts to the relative displacement and deformation of the scanning box 2 and the shielding chamber body 1 during the use of the electron accelerator equipment, ensuring the stability and sealing of the connection between the external vacuum pipe 3 and the internal vacuum pipe 4. The external vacuum pipe 3 and the internal vacuum pipe 4 are filled with lead filler, which ensures the radiation shielding effect and ensures radiation safety during the operation of the electron accelerator. At the same time, multiple interfaces are provided at one end of the external vacuum pipe 3, which can be used with multiple external vacuum pumping devices as needed. The external vacuum pumping devices perform vacuuming treatment inside the shielding chamber body 1 through the external vacuum pipe 3, the flexible pipe 5, and the internal vacuum pipe 4.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum acquisition structure for an electron accelerator, characterized in that: The shielding chamber includes a main body (1), and a scanning box (2) is provided inside the main body (1). The side walls of the main body (1) and the side walls of the scanning box (2) are respectively provided with a first mounting hole (101) and a second mounting hole (201). An external vacuum pipe (3) and an internal vacuum pipe (4) are respectively provided on the first mounting hole (101) and the second mounting hole (201). A flexible pipe (5) is provided between the external vacuum pipe (3) and the internal vacuum pipe (4). The external vacuum pipe (3) includes an outer tube (301) and an inner tube (302). A closed cavity is formed between the outer tube (301) and the inner tube (302). The internal vacuum pipe (4) has the same structure as the external vacuum pipe (3).

2. The vacuum acquisition structure for an electron accelerator according to claim 1, characterized in that: The scanning box (2) is detachably connected to the shielding chamber body (1). One end of the external vacuum pipe (3) extends into the shielding chamber body (1) and is connected to one end of the flexible pipe (5). The other end of the flexible pipe (5) is connected to the internal vacuum pipe (4).

3. The vacuum acquisition structure for an electron accelerator according to claim 2, characterized in that: The external vacuum pipe (3) has multiple interfaces at one end located outside the shielded room body (1).

4. The vacuum acquisition structure for an electron accelerator according to claim 1, characterized in that: The flexible pipe (5) is specifically a corrugated hose.

5. The vacuum acquisition structure for an electron accelerator according to claim 1, characterized in that: The outer tube (301) and the inner tube (302) are coaxially arranged, and the closed cavity is filled with lead metal filler (303).

6. The vacuum acquisition structure for an electron accelerator according to claim 1, characterized in that: The outer and inner tubes of the external vacuum pipe (3) are made of metal lead filler rubber composite material.

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