CN113347771A

CN113347771A - Tube core structure and X-ray high-voltage generator with same

Info

Publication number: CN113347771A
Application number: CN202010133508.4A
Authority: CN
Inventors: 卢卫彬; 吴沭字; 范声芳; 黄强; 吴兵
Original assignee: Suzhou Powersite Electric Co Ltd
Current assignee: Suzhou Powersite Electric Co Ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2021-09-03
Anticipated expiration: 2040-03-02
Also published as: CN113347771B

Abstract

The invention discloses a tube core structure and an X-ray high-voltage generator with the same, and relates to the technical field of high-voltage generators in security inspection machines, wherein the tube core structure comprises: the tube core main body is provided with a first outlet allowing X-rays to be emitted; the insulating assemblies are arranged at two ends of the tube core main body in the axial direction; an end cap overlying the insulating assembly. The tube core main body and the end cover are made of the anti-penetrating radiation material, the end cover covers the insulating assembly on one side of the tube core main body and is fixedly connected with the tube core main body, so that the tube core main body has both insulation and radiation resistance, the structure is simple, the production cost is reduced, and the large-scale popularization is facilitated. The invention provides a tube core structure with insulation and radiation protection and an X-ray high-voltage generator with the tube core structure.

Description

Tube core structure and X-ray high-voltage generator with same

Technical Field

The invention relates to the technical field of high-voltage generators in security inspection machines, in particular to a tube core structure and an X-ray high-voltage generator with the same.

Background

The high voltage generator in the security inspection machine is one of the most important core components for generating X-rays at a specific angle, and the performance of the high voltage generator determines whether the whole system can continuously and stably work. Because of the high voltage in the X-ray generating conditions, the necessary high voltage insulation structure design can ensure stable high voltage output, and in addition, because the X-ray has radiation, it is necessary to ensure that the X-ray generated in the pipe structure of the high voltage generator does not leak. In the prior art, the requirements can be met only by using special materials, the cost is high, and the method is not suitable for large-scale popularization and application.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects that a high-voltage generator which meets the requirements of insulation and radiation protection in a security inspection machine in the prior art is high in cost and is not suitable for popularization and application, and thus a tube core structure and an X-ray high-voltage generator with the same are provided.

In order to solve the above technical problem, the present invention provides a tube core structure, including:

the X-ray radiation detector comprises a tube core main body, a first radiation detector and a second radiation detector, wherein the tube core main body is made of a penetration-resistant radiation material, and a first outlet allowing X-rays to be emitted is formed in the side wall of the tube core main body; the insulating assemblies are arranged at two ends of the tube core main body in the axial direction and are used for covering the port of the tube core main body; an end cap made of a penetration resistant radiation material and covering the insulating assembly.

At least two end covers can splice into an organic whole and cover on insulating subassembly, the junction of two adjacent end covers all sets up to the staggered floor structure. The staggered layer structure is projections staggered along the axial direction of the tube core main body.

The insulating assembly is circumferentially provided with an annular groove allowing at least two end covers to be fixedly inserted towards the direction close to each other.

The insulating assembly comprises a first insulating part connected to the port of the tube core main body and a second insulating part fixedly connected to the opening formed in the center of the first insulating part, the annular groove is formed in the circumferential direction of the first insulating part, and a first oil outlet and a high-voltage wire outlet which are communicated with the opening are formed in two ends of the second insulating part respectively.

The first insulating part comprises a first insulating disc and a second insulating disc which are axially arranged at intervals, and a connecting column for connecting the first insulating disc and the second insulating disc, and the annular groove is formed in an annular space formed by the first insulating disc, the second insulating disc and the connecting column.

The end cover is semicircular.

The X-ray high-voltage generator comprises a tube core structure, and the tube core structure is arranged in the first box body.

First box is equipped with the second export that allows the X ray to jet out, the second export with fixedly connected with passes through the window between the first export, the installation department that passes through the window with the frame of second export is the penetration resistant radiation material and makes, just first export with the junction of the installation department that passes through the window and the installation department that passes through the window with the junction of the frame of second export all establishes to the staggered floor structure.

The heat dissipation structure is communicated with the first box body and arranged in a second box body connected with the first box body.

The heat dissipation structure comprises a second oil outlet and an oil inlet which are formed in the side wall of the first box body, an oil pump connected with the second oil outlet, and heat dissipation assemblies respectively connected with the oil pump and the oil inlet, so that insulating oil in the tube core main body is cooled in a circulating mode.

The technical scheme of the invention has the following advantages:

1. the tube core structure provided by the invention comprises a tube core main body made of a penetration-resistant radiation material, wherein a first outlet allowing X-rays to be emitted is formed in the side wall of the tube core main body; the insulating assemblies are arranged at two ends of the tube core main body in the axial direction and used for covering ports of the tube core main body and ensuring that high voltage is not leaked; the end cover is made of the anti-penetrating radiation material, covers the insulating assembly, ensures that a closed space for preventing radioactive rays from being leaked is formed inside the tube core structure, can give consideration to insulating and radiation-proof effects, is simple in structure, reduces the production cost of the tube core structure, and is beneficial to large-scale popularization.

2. According to the tube core structure provided by the invention, at least two end covers can be spliced into a whole, and the joints of two adjacent end covers are both arranged in a staggered structure, so that the protection performance of the joints can be improved, rays are guaranteed to be blocked, and the safety of the tube core structure is improved.

3. The invention provides a tube core structure.A ring groove which allows a plurality of end covers to be fixedly inserted and inserted towards the direction close to each other is formed in the circumferential direction of an insulating assembly, the insulating assembly comprises a first insulating piece connected to a port of a tube core main body and a second insulating piece fixedly connected to an opening formed in the center of the first insulating piece, and the ring groove is formed in the circumferential direction of the first insulating piece and used for fixing the end covers in the ring groove; the first oil-out and the high-voltage line export that link up the setting with the opening are seted up respectively to second insulating part both ends, and the setting up of insulating subassembly makes both can fix the end cover of protectiveness in the ring channel of insulating subassembly, guarantees to protect against radiation and insulating nature, can also regard as the pipe of intercommunication tube core structure internal part device to communicate insulating oil and high-voltage line.

4. The X-ray high-voltage generator provided by the invention is provided with the first box body for accommodating the tube core structure, the first box body is provided with the second outlet for allowing X-rays to be emitted, the through window is fixedly connected between the second outlet and the first outlet, and the mounting part of the through window and the outer frame of the second outlet are both made of anti-penetrating radiation materials, so that the sealing property of the X-rays in the first box body is ensured; and the junction of the first outlet and the installation part of the transparent window and the junction of the installation part of the transparent window and the outer frame of the second outlet are both arranged in a staggered structure, so that ray leakage can be better prevented at the junction of the devices, and the structure is simple and low in cost.

5. The X-ray high-voltage generator further comprises a heat dissipation structure communicated with the first box body, the heat dissipation structure is arranged in a second box body connected with the first box body, the heat dissipation structure comprises a second oil outlet and an oil inlet formed in the side wall of the first box body, an oil pump connected with the second oil outlet, and heat dissipation assemblies respectively connected with the oil pump and the oil inlet, insulating oil in the tube core main body can be cooled in a circulating mode, the heat dissipation effect of the X-ray high-voltage generator is improved, and the service life of the X-ray high-voltage generator is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a die structure of the present invention;

FIG. 2 is an exploded view of a portion of the structure of FIG. 1;

FIG. 3 is a cross-sectional view of a first housing of the X-ray high voltage generator of the present invention;

FIG. 4 is a schematic diagram of the structure of the X-ray high voltage generator of the present invention;

FIG. 5 is a schematic view showing an internal structure of the second casing of FIG. 4;

description of reference numerals:

1. a die body; 2. a first outlet; 3. an end cap; 4. a first insulating member; 5. a second insulating member; 6. a first oil outlet; 7. a high-voltage line outlet; 8. a first case; 9. a second oil outlet; 10. a second outlet; 11. a window is penetrated; 12. a second case; 13. an oil pump; 14. a heat sink; 15. a heat radiation fan; 16. an exhaust hole; 17. an adapter; 18. an installation part; 19. an outer frame; 20. and an oil inlet.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Fig. 1-5 show an embodiment of a die structure provided by the present invention, which includes:

a tube core main body 1 provided with a first outlet 2 allowing X-rays to be emitted; the insulating assemblies are arranged at two ends of the tube core main body 1 in the axial direction; an end cap 3 overlying the insulating assembly.

The tube core main body 1 is made of a penetration-resistant radiation material and made of lead, and the first outlet 2 is arranged in the middle of the side wall of the tube core main body 1; two ports of the tube core main body 1 in the axial direction are covered by insulating components, so that high voltage in the tube core main body 1 can be prevented from leaking out of the ports at two sides of the tube core main body 1; in order to ensure the radiation protection function of the ports on the two sides, two end covers 3 made of lead materials are respectively covered on the insulating components on the two sides of the tube core main body 1 and are fixedly connected with the tube core main body 1. The tube core structure can give consideration to both insulativity and radiation resistance, has a simple structure, reduces the production cost of the tube core structure, and is beneficial to large-scale popularization.

Specifically, the insulating assembly includes a first insulating member 4 connected to a port of the die body 1, and a second insulating member 5 fixedly connected to an opening opened at the center of the first insulating member 4. The shape of the first insulating part 4 is circular with the port adaptation of the tube core main body 1, an annular groove allowing the pair of end covers 3 to be inserted and fixed towards the mutually approaching direction is formed in the circumferential direction of the first insulating part 4, the end covers 3 are semicircular, the staggered layer structure of the splicing positions of the two end covers 3 is a protruding part which is staggered along the axial direction of the tube core main body 1, and rays can be prevented from being leaked at the splicing positions. And a first oil outlet 6 and a high-voltage wire outlet 7 which are communicated with the opening are respectively formed at two ends of the second insulating part 5 and are used for communicating insulating oil and a high-voltage wire in the tube core main body 1.

First insulating part 4 includes first insulating disk and the second insulating disk that the interval set up in the axial to and be used for connecting the spliced pole of first insulating disk and second insulating disk, the annular groove shaping is in the annular space that first insulating disk, second insulating disk and spliced pole formed, and a pair of semicircle end cover 3 of being convenient for is pegged graft in the annular groove. The two sides of the end cover 3 are respectively covered with an insulating disc, so that the insulating property is further improved, and the pair of insulating discs clamp the pair of end covers 3 inside, so that the mounting firmness is ensured.

The X-ray high-voltage generator comprises a first box body 8 for accommodating a tube core structure, the first box body 8 is provided with a second outlet 10 for allowing X-rays to be emitted, a through window 11 extends from the first outlet 2 to the second outlet 10, in order to improve the radiation resistance, a mounting part 18 for connecting the through window 11 and the first outlet 2 is provided, and an outer frame 19 of the second outlet 10 connected with the mounting part of the through window 11 is made of a penetration-resistant radiation material and is made of lead; in order to improve the sealing performance of the connection of the respective components, the connection between the first outlet 2 and the mounting portion 18 of the transparent window 11 and the connection between the mounting portion 18 of the transparent window 11 and the outer frame 19 of the second outlet 10 are both staggered.

In order to improve the heat dissipation performance of the X-ray high voltage generator, a heat dissipation structure is communicated with the outside of the first box body 8 and arranged in a second box body 12 connected with the first box body 8, and a plurality of exhaust holes 16 are formed in the second box body 12 and used for protecting the heat dissipation structure.

The heat dissipation structure comprises a second oil outlet 9 and an oil inlet 20 which are formed in the side wall of the first box body 8, an oil pump 13 connected with the second oil outlet 9, and heat dissipation assemblies respectively connected with the oil pump 13 and the oil inlet 20, so that insulating oil in the tube core main body 1 is subjected to circulating cooling.

The oil pump 13 and the heat dissipation assembly, and the heat dissipation assembly and the oil inlet 20 are connected by an adapter 17 and a hose for connecting two adjacent adapters 17.

The heat dissipation assembly comprises a radiator 14 connected with the oil pump 13 through a connection assembly, the radiator 14 is a powerful oil-cooled radiator, and a heat dissipation fan 15 is arranged between the radiator 14 and the first box body 8 to accelerate heat dissipation of insulating oil pumped out from the first box body 8 by the oil pump 13.

X-rays emitted by the tube core main body 1 are emitted from a first outlet 2 formed in the side wall of the tube core main body 1, and are emitted from a second outlet 10 formed in a first box 8 for accommodating the tube core main body 1 through a transparent window 11 connected with the first outlet 2 through an installation part 18, so that the function of X-ray scanning is realized. In order to ensure the radiation protection performance of the structure, the tube core main body 1 is made of lead materials, two semi-circular end covers 3 made of lead materials are spliced into a whole to cover the insulating assemblies on the two sides of the tube core main body 1, and the mounting part 18 and the outer frame 19 of the second outlet 10 are made of lead materials; the joints of the devices adopt a staggered structure to ensure tightness. The insulating assemblies on the two sides of the tube core main body 1 ensure insulating oil inside the tube core main body 1 and insulating property when the high-voltage wire extends out of the tube core main body 1, so that the tube core main body 1 has radiation protection and insulating properties, and is simple in structure and convenient for large-scale production. In order to improve the heat dissipation efficiency of the insulating oil, the heat dissipation structure is communicated with the outside of the first box body 8 and arranged in the second box body 12 connected with the first box body 8, the insulating oil is circularly cooled through the heat dissipation structure, the heat dissipation efficiency is improved, and the service life of the X-ray high-voltage generator is prolonged.

Alternatively, the radiation-resistant material may be selected from radiation-resistant concrete, steel, graphite, and the like.

Alternatively, the first insulating member 4 may comprise only one insulating disk, and the insulating disk may have a mounting portion formed at each of the axial ends thereof, and the end cap 3 and the second insulating member 5 may be mounted on the respective mounting portions.

As an alternative embodiment, the heat dissipation assembly may cool the insulating oil in the tube core body 1 by providing a circulating water structure.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A die structure, comprising:

the X-ray tube core comprises a tube core body (1), wherein the tube core body (1) is made of a penetration-resistant radiation material, and a first outlet (2) allowing X-rays to be emitted is formed in the side wall of the tube core body (1);

the insulating assemblies are arranged at two ends of the tube core main body (1) in the axial direction and are used for covering the port of the tube core main body (1);

an end cap (3), wherein the end cap (3) is made of a penetration-resistant radiation material and covers the insulation component.

2. The die structure according to claim 1, characterized in that at least two end caps (3) can be spliced into a whole and covered on the insulating component, and the joints of two adjacent end caps (3) are arranged in a staggered structure.

3. The tubular core structure of claim 2, characterized in that the insulating assembly is circumferentially shaped with an annular groove allowing at least two of the end caps (3) to be inserted and fixed towards each other.

4. The tube core structure according to claim 3, wherein the insulation assembly comprises a first insulation member (4) connected to a port of the tube core body (1), and a second insulation member (5) fixedly connected to an opening formed in the center of the first insulation member (4), the annular groove is formed in the circumferential direction of the first insulation member (4), and a first oil outlet (6) and a high-voltage wire outlet (7) which are communicated with the opening are respectively formed in two ends of the second insulation member (5).

5. The die structure according to claim 4, characterized in that the first insulating member (4) comprises a first insulating disk and a second insulating disk which are axially spaced apart, and a connecting post for connecting the first insulating disk and the second insulating disk, and the annular groove is formed in an annular space formed by the first insulating disk, the second insulating disk and the connecting post.

6. The die structure according to any of claims 1-5, characterized in that the end caps (3) are semicircular.

7. An X-ray high voltage generator, characterized in that it comprises a tubular core structure according to any one of claims 1-6, which is arranged in a first box (8).

8. The X-ray high voltage generator according to claim 7, characterized in that, first box (8) is equipped with the second export (10) that allows the X-ray to shoot out, second export (10) with fixedly connected with transom (11) between first export (2), installation department (18) of transom (11) with frame (19) of second export (10) are anti-penetration radiation material and make, just first export (2) with the junction of installation department (18) of transom (11) and installation department (18) of transom (11) with the junction of frame (19) of second export (10) all establishes to the staggered layer structure.

9. An X-ray high voltage generator according to claim 7 or 8, further comprising a heat dissipation structure provided in communication with the first housing (8), the heat dissipation structure being provided in a second housing (12) connected to the first housing (8).

10. The X-ray high voltage generator according to claim 9, wherein the heat dissipation structure comprises a second oil outlet (9) and an oil inlet (20) formed in a side wall of the first box (8), an oil pump (13) connected to the second oil outlet (9), and a heat dissipation assembly respectively connected to the oil pump (13) and the oil inlet (20) so as to circularly cool the insulating oil in the tube core main body (1).