Vacuumizing device of irradiation electron accelerator

Abstract

The utility model discloses a vacuumizing device of an irradiation electron accelerator, which comprises a moving plate, a sound insulation cover is fixedly mounted on the upper surface of the moving plate, a threaded connection seat is fixedly connected to the outer surface of the sound insulation cover, a sealing cover is arranged above the sound insulation cover, a threaded connection ring is fixedly connected to the bottom surface of the sealing cover, and a sealing ring is fixedly connected to the bottom surface of the threaded connection ring. The bottom end of the threaded connecting ring extends into the threaded connecting seat, the outer surface of the threaded connecting ring is in threaded connection with the inner wall of the threaded connecting seat, a vacuum pump is fixedly mounted on the upper surface of the moving plate, annular sound insulation cotton is fixedly connected to the inner ring of the sound insulation cover, and the vacuum pump is located in the annular sound insulation cotton. The input end of the vacuum pump fixedly communicates with an exhaust pipe, and a through hole is formed in the upper surface of the sealing cover. According to the device, the sound insulation cover is matched with the annular sound insulation cotton, the vacuum pump can be isolated and absorbed, a noise reduction structure is provided, and the problem that the workshop environment is affected by large noise is solved.

Description

Technical Field

[0001] The utility model relates to the field of electron accelerators, in particular to a vacuum pumping device for an irradiation electron accelerator. Background Art

[0002] The high-energy electron beam irradiation produced by electron accelerators can cause some substances to produce physical, chemical and biological effects, and can effectively kill bacteria, viruses and pests. It has been widely used in material modification, new material production, environmental protection, processing and production, sterilization and disinfection of medical and sanitary products, and food sterilization and preservation in industrial production.

[0003] At present, when an electron accelerator is performing irradiation sterilization, it is necessary to evacuate the interior of the electron accelerator. At present, a vacuum pump is usually set to extract the vacuum inside the electron accelerator. However, the vacuum pump does not have a noise reduction structure when working, which will generate a lot of noise, and then affect the workshop environment. Therefore, we propose a vacuum pumping device for irradiation electron accelerator to solve the above problem. Utility Model Content

[0004] The purpose of the present invention is to provide a vacuum pumping device for an irradiation electron accelerator to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A vacuum pumping device for an irradiation electron accelerator comprises a movable plate, a soundproof cover is fixedly mounted on the upper surface of the movable plate, the outer surface of the soundproof cover is fixedly connected to a threaded connection seat, a sealing cover is provided above the soundproof cover, the bottom surface of the sealing cover is fixedly connected to a threaded connection ring, the bottom end of the threaded connection ring extends to the interior of the threaded connection seat, and the outer surface of the threaded connection ring is threadedly connected to the inner wall of the threaded connection seat, a vacuum pump is fixedly mounted on the upper surface of the movable plate, the inner ring of the soundproof cover is fixedly connected to an annular sound insulation cotton, the vacuum pump is located inside the annular sound insulation cotton, the input end of the vacuum pump is fixedly connected to an exhaust pipe, a through hole is provided on the upper surface of the sealing cover, the top end of the exhaust pipe passes through the through hole and extends to the top of the through hole, the outer surface of the exhaust pipe is in contact with the inner ring of the through hole, and the outer surface of the exhaust pipe is fixedly connected to a vacuum sensor.

[0007] In a further embodiment, the top end of the exhaust pipe is fixedly connected to a lower joint, the upper surface of the lower joint is fixedly connected to an upper joint, and the top end of the upper joint is fixedly connected to a connecting pipe.

[0008] In a further embodiment, the front end of the connecting pipe is fixedly connected to a telescopic hose, the front end of the telescopic hose is fixedly connected to an air inlet connector, and the outer surface of the connecting pipe is fixedly connected to a pressure gauge.

[0009] In a further embodiment, the output end of the vacuum pump is fixedly connected to an exhaust pipe, the right end of the exhaust pipe passes through the annular sound insulation cotton and the sound insulation cover in sequence and extends to the outside of the sound insulation cover, and the right end of the exhaust pipe is fixedly connected to an exhaust joint.

[0010] In a further embodiment, two sets of universal wheels are fixedly mounted on the bottom surface of the movable plate, and both sets of universal wheels are provided with a self-locking braking structure.

[0011] In a further embodiment, a controller is fixedly mounted on the front of the soundproof enclosure, and the controller is electrically connected to the vacuum pump via a wire.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This device uses a vacuum pump arranged above the movable plate, and cooperates with the exhaust pipe fittings and the exhaust pipe fittings to quickly discharge the gas inside the electron accelerator, which will form a vacuum state inside the electron accelerator, which is conducive to irradiation sterilization. Through the cooperation of the threaded connection seat and the threaded connection ring, the sealing cover can be installed on the top of the sound insulation cover, and the cooperation of the sound insulation cover and the annular sound insulation cotton can be used to isolate and absorb the vacuum pump, thereby having a noise reduction structure to avoid the problem of large noise affecting the workshop environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the front view of the vacuum pumping device of the irradiation electron accelerator.

[0015] Figure 2 This is a cross-sectional view of the front view of the vacuum pumping device of the irradiation electron accelerator.

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the rear view of the vacuum pumping device of the irradiation electron accelerator.

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the rear view of the telescopic hose in the vacuum pumping device of the irradiation electron accelerator.

[0018] In the figure: 1. Moving plate; 2. Sound insulation cover; 3. Threaded connection seat; 4. Sealing cover; 5. Vacuum pump; 6. Exhaust pipe; 7. Exhaust pipe; 8. Through hole; 9. Lower joint; 10. Upper joint; 11. Connecting pipe; 12. Telescopic hose; 13. Inlet joint; 14. Pressure gauge; 15. Vacuum sensor; 16. Exhaust joint; 17. Ring-shaped sound insulation cotton; 18. Threaded connection ring; 19. Controller; 20. Universal wheel. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] 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 are within the scope of protection of the present invention.

[0022] See also Figure 1-4In the present invention, a vacuum pumping device for an irradiation electron accelerator comprises a movable plate 1, a soundproof cover 2 is fixedly mounted on the upper surface of the movable plate 1, a threaded connection seat 3 is fixedly connected to the outer surface of the soundproof cover 2, a sealing cover 4 is provided above the soundproof cover 2, a threaded connection ring 18 is fixedly connected to the bottom surface of the sealing cover 4, the bottom end of the threaded connection ring 18 extends to the inside of the threaded connection seat 3, and the outer surface of the threaded connection ring 18 is threadedly connected to the inner wall of the threaded connection seat 3, a vacuum pump 5 is fixedly mounted on the upper surface of the movable plate 1, and the soundproof cover 2 is fixedly connected to the inner ring of the annular sound insulation cotton 17, the vacuum pump 5 is located inside the annular sound insulation cotton 17, the input end of the vacuum pump 5 is fixedly connected to the exhaust pipe 7, the upper surface of the sealing cover 4 is provided with a through hole 8, the top of the exhaust pipe 7 passes through the through hole 8 and extends to the top of the through hole 8, the outer surface of the exhaust pipe 7 is in contact with the inner ring of the through hole 8, and the outer surface of the exhaust pipe 7 is fixedly connected to the vacuum sensor 15. Through the cooperation of the sound insulation cover 2, the annular sound insulation cotton 17 and the sealing cover 4, the vacuum pump 5 can be isolated and sound-absorbing to achieve the effect of noise reduction.

[0023] In a further embodiment, the top of the exhaust pipe 7 is fixedly connected to the lower joint 9, the upper surface of the lower joint 9 is fixedly connected to the upper joint 10, the top of the upper joint 10 is fixedly connected to the connecting pipe 11, the front end of the connecting pipe 11 is fixedly connected to the telescopic hose 12, the front end of the telescopic hose 12 is fixedly connected to the air inlet joint 13, and the outer surface of the connecting pipe 11 is fixedly connected to the pressure gauge 14. Through the cooperation of the telescopic hose 12, the connecting pipe 11 and the exhaust pipe 7, and by using the vacuum pump 5, the gas inside the electron accelerator can be extracted, which will quickly form a vacuum state inside the electron accelerator.

[0024] In a further embodiment, the output end of the vacuum pump 5 is fixedly connected to the exhaust pipe 6, the right end of the exhaust pipe 6 passes through the annular sound insulation cotton 17 and the sound insulation cover 2 in sequence and extends to the outside of the sound insulation cover 2, the right end of the exhaust pipe 6 is fixedly connected to the exhaust connector 16, two sets of universal wheels 20 are fixedly installed on the bottom surface of the movable plate 1, and both sets of universal wheels 20 have a self-locking braking structure. A controller 19 is fixedly installed on the front of the sound insulation cover 2, and the controller 19 is electrically connected to the vacuum pump 5 through a wire. Through the cooperation of the exhaust pipe 6 and the exhaust connector 16, the vacuumed gas can be discharged. The cooperation of the universal wheel 20 will make the device move flexibly, and the setting of the controller 19 will facilitate the control of the device.

[0025] The working principle of the present invention is as follows: first, the device is connected to a power source, then the air inlet connector 13 is connected to the electron accelerator, and then the vacuum pump 5 is started to operate. The gas inside the electron accelerator can be extracted through the telescopic hose 12, the connecting pipe 11 and the exhaust pipe 7, and discharged through the exhaust pipe 6. Then, the gas inside the electron accelerator can be quickly discharged, which will form a vacuum state inside the electron accelerator, facilitating irradiation sterilization. The noise generated by the operation of the vacuum pump 5 will be isolated and absorbed by the sound insulation cover 2, the annular sound insulation cotton 17 and the sealing cover 4, thereby achieving a noise reduction effect.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0027] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A vacuum pumping device for an irradiation electron accelerator, characterized in that: The invention comprises a movable plate (1), a soundproof cover (2) is fixedly mounted on the upper surface of the movable plate (1), a threaded connection seat (3) is fixedly connected to the outer surface of the soundproof cover (2), a sealing cover (4) is provided above the soundproof cover (2), a threaded connection ring (18) is fixedly connected to the bottom surface of the sealing cover (4), the bottom end of the threaded connection ring (18) extends to the inside of the threaded connection seat (3), and the outer surface of the threaded connection ring (18) is threadedly connected to the inner wall of the threaded connection seat (3), and the upper surface of the movable plate (1) is fixedly mounted with a true An air pump (5) is provided. The inner ring of the soundproof cover (2) is fixedly connected with an annular soundproof cotton (17). The vacuum pump (5) is located inside the annular soundproof cotton (17). The input end of the vacuum pump (5) is fixedly connected with an exhaust pipe (7). A through hole (8) is provided on the upper surface of the sealing cover (4). The top end of the exhaust pipe (7) passes through the through hole (8) and extends to the top of the through hole (8). The outer surface of the exhaust pipe (7) is in contact with the inner ring of the through hole (8). The outer surface of the exhaust pipe (7) is fixedly connected with a vacuum sensor (15).

2. The vacuum pumping device for an irradiation electron accelerator according to claim 1, characterized in that: The top end of the exhaust pipe (7) is fixedly connected to a lower joint (9), the upper surface of the lower joint (9) is fixedly connected to an upper joint (10), and the top end of the upper joint (10) is fixedly connected to a connecting pipe (11).

3. The vacuum pumping device for an irradiation electron accelerator according to claim 1, characterized in that: The front end of the communicating tube (11) is fixedly connected to a telescopic hose (12), the front end of the telescopic hose (12) is fixedly connected to an air inlet joint (13), and the outer surface of the communicating tube (11) is fixedly connected to a pressure gauge (14).

4. The vacuum pumping device for an irradiation electron accelerator according to claim 1, characterized in that: The output end of the vacuum pump (5) is fixedly connected to an exhaust pipe (6), the right end of the exhaust pipe (6) sequentially passes through the annular sound insulation cotton (17) and the sound insulation cover (2) and extends to the outside of the sound insulation cover (2), and the right end of the exhaust pipe (6) is fixedly connected to an exhaust joint (16).

5. The vacuum pumping device for an irradiation electron accelerator according to claim 1, characterized in that: Two sets of universal wheels (20) are fixedly mounted on the bottom surface of the movable plate (1), and both sets of universal wheels (20) are provided with a self-locking brake structure.

6. The vacuum pumping device for an irradiation electron accelerator according to claim 1, characterized in that: A controller (19) is fixedly mounted on the front of the soundproof cover (2), and the controller (19) is electrically connected to the vacuum pump (5) via a wire.

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