X-ray generating device

Abstract

The utility model provides an X-ray generating device, and belongs to the technical field of X-rays. The X-ray generating device comprises a high-pressure oil tank and an X-ray tube, the high-pressure oil tank comprises a high-pressure tank body and an oil tank cover covering the high-pressure tank body, the X-ray tube is mounted on the oil tank cover and extends into the high-pressure oil tank, high-pressure plates are arranged in the high-pressure oil tank, insulating oil is filled between the high-pressure plates for high-pressure operation, and a reserved air tank is arranged on the oil tank cover. The bottom of the reserved air box communicates with the high-pressure oil tank, and the top of the reserved air box communicates with the outside atmosphere through an air hole. The device is simple in structure, low in cost, not prone to oil leakage of the box body and convenient to assemble and maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of X-rays, and in particular relates to an X-ray generating device. Background Art

[0002] X-ray tubes are used as X-ray output sources. The X-rays they generate can be used for nondestructive testing of the inside of an object. They are widely used in various fields such as medical treatment, security inspection, and industrial flaw detection. Currently, a more practical X-ray generating device adopts an integrated structure, that is, the X-ray tube and the high-voltage power supply are designed as an integrated combined structure, which not only saves the connection of the intermediate high-voltage cable, but also facilitates various applications. In this design, the combined structure usually uses transformer oil as the insulating material, and the X-ray tube and the high-voltage power supply are encapsulated in an external shell. Due to the filling of insulating oil, the X-ray tube and the high-voltage power supply can be connected through conventional wires.

[0003] During the operation of the X-ray source, various power devices have temperature rise. As the temperature rises, the transformer oil expands due to heat, and the expansion causes the transformer oil pressure to increase. In order to solve this problem, most of the existing technologies use expanders, such as the Chinese patent for an expander of a 110KV circular X-ray source generator [application number CN201922223210.8] and a built-in sealed expander for an X-ray source [application number CN202220824460.6]. The oil pressure generated by thermal expansion can be released through the expansion and contraction of the expander, but the device introduces materials, which increases costs, and there is a risk of oil leakage during material assembly. Summary of the invention

[0004] In view of this, the utility model aims at the deficiencies of the prior art and proposes an X-ray generating device which does not generate expansion oil pressure.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an X-ray generating device, comprising a high-pressure oil tank and an X-ray tube, the high-pressure oil tank comprising a high-pressure box body and an oil tank cover arranged on the high-pressure box body, the X-ray tube is installed on the oil tank cover and extends into the high-pressure oil tank, a high-pressure plate is arranged in the high-pressure oil tank, and insulating oil is filled between the high-pressure plates for high-voltage operation, characterized in that a reserved air box is arranged on the oil tank cover, the bottom of the reserved air box is connected to the high-pressure oil tank, and the top of the reserved air box is connected to the outside atmosphere through an air hole.

[0006] The principle of the utility model is to provide redundant space by setting up a reserved air box. When the insulating oil in the high-pressure oil tank expands due to heat during operation, it is filled upward into the reserved air box, and the gas in the reserved air box is squeezed into the outside atmosphere, thereby ensuring the stability of the hydraulic pressure of the insulating oil in the high-pressure oil tank.

[0007] Preferably, the volume of the reserved air box is 5%-15% of the volume of the high-pressure oil tank.

[0008] Preferably, the volume of the reserved air box is 10% of the volume of the high-pressure oil tank.

[0009] Preferably, the air holes are covered with a breathable dustproof sheet.

[0010] Preferably, the breathable dustproof sheet is a sheet structure made of breathable cotton, non-woven fabric or breathable film.

[0011] Preferably, the reserved air box includes a reserved box body and a reserved box cover, the reserved box body and the oil tank cover are connected as a whole, the reserved box cover is fixedly connected to the top of the reserved box body by a plurality of screws, and the air holes are arranged on the reserved box cover.

[0012] Compared with the prior art, the X-ray generating device of the utility model has the following characteristics: 1. Simple design and low cost; 2. The high-pressure oil tank is easy to assemble, has good sealing, and is not prone to oil leakage; 3. Strong adaptability and convenient for mass production; 4. Better maintenance and no consumable parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the structure of an X-ray generating device in an embodiment.

[0014] Figure 2 Schematic diagram of the cross-sectional structure of an X-ray generating device in an embodiment.

[0015] Figure 3 This is a schematic diagram of the state of the insulating oil expanding due to heat during the working process of an X-ray generating device in an embodiment.

[0016] In the figure, 1. high-pressure oil tank; 1a. high-pressure box body; 1b. oil tank cover; 2. X-ray tube; 3. high-voltage panel; 4. reserved air box; 4a. reserved box body; 4b. reserved box cover; 5. air hole; 6. breathable dustproof sheet; 7. insulating oil. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0018] like Figure 1 , 2As shown, the X-ray generating device provided by the utility model comprises a high-pressure oil tank 1 and an X-ray tube 2, wherein the high-pressure oil tank comprises a high-pressure box body 1a and a tank cover 1b which is arranged on the high-pressure box body 1a, the X-ray tube 2 is installed on the tank cover 1b and extends into the high-pressure oil tank, a high-pressure plate 3 is arranged in the high-pressure oil tank, and insulating oil 7 is filled between the high-pressure plates 3 for high-pressure operation, and a reserved air box 4 is arranged on the tank cover 1b, the bottom of the reserved air box 4 is connected to the high-pressure oil tank, and the top of the reserved air box 4 is connected to the outside atmosphere through the air hole 5. The reserved air box 4 comprises a reserved box body 4a and a reserved box cover 4b, the reserved box body 4a and the tank cover 1b are connected as a whole, the reserved box cover 4b is fixedly connected to the top of the reserved box body 4a by a plurality of screws, and the air hole 5 is arranged on the reserved box cover 4b.

[0019] More specifically, in order to ensure that the insulating oil 7 does not overflow, the volume of the reserved air box 4 is designed to be 5%-15% of the volume of the high-pressure oil tank, thereby meeting the high-temperature expansion requirement of the insulating oil 7. As a preferred solution of this embodiment, the volume of the reserved air box 4 is designed to be 10% of the volume of the high-pressure oil tank.

[0020] In order to prevent dust in the outside air from falling into the oil tank, a breathable dustproof sheet 6 is installed on the air hole 5 of the reserved air box 4 to cover and protect against dust and air. The breathable dustproof sheet 6 can be a sheet structure made of breathable cotton, non-woven fabric or breathable film. Specifically, this embodiment uses breathable cotton as the material.

[0021] The utility model realizes balancing the oil pressure of the insulating oil 7 in the high-pressure oil tank by designing a reserved air box 4 on the oil tank cover of the high-pressure oil tank. There is no need to additionally release the oil by adding an expansion and contraction device on the high-pressure oil tank, thereby reducing costs and also reducing the occurrence of oil leakage incidents caused by improper assembly.

[0022] like Figure 3 As shown, by such a design, when the insulating oil 7 in the high-pressure oil tank expands due to the operation of the X-ray generator, the insulating oil 7 can flow upward into the reserved air box 4, and at the same time, the air in the reserved air box 4 is expelled to the outside atmosphere through the air hole 5, thereby reducing the oil pressure in the high-pressure oil tank. When the X-ray generator finishes working, the temperature in the high-pressure oil tank drops, the volume of the insulating oil 7 decreases, and the insulating oil 7 flows from the reserved air box 4 back to the high-pressure oil tank.

[0023] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An X-ray generating device, comprising a high-pressure oil tank (1) and an X-ray tube (2), wherein the high-pressure oil tank comprises a high-pressure box body (1a) and an oil tank cover (1b) arranged on the high-pressure box body (1a), the X-ray tube (2) is mounted on the oil tank cover (1b) and extends into the high-pressure oil tank, a high-pressure plate (3) is arranged in the high-pressure oil tank, and insulating oil is filled between the high-pressure plates (3) for high-voltage operation, characterized in that: A reserved air box (4) is provided on the oil tank cover (1b); the bottom of the reserved air box (4) is connected to the high-pressure oil tank, and the top of the reserved air box (4) is connected to the outside atmosphere through an air hole (5).

2. An X-ray generating device according to claim 1, characterized in that: The volume of the reserved air box (4) is 5%-15% of the volume of the high-pressure oil tank.

3. An X-ray generating device according to claim 2, characterized in that: The volume of the reserved air box (4) is 10% of the volume of the high-pressure oil tank.

4. An X-ray generating device according to any one of claims 1 to 3, characterized in that: The air hole (5) is covered with a breathable dustproof sheet (6).

5. An X-ray generating device according to claim 4, characterized in that: The breathable dustproof sheet (6) is a sheet structure made of breathable cotton, non-woven fabric or breathable film.

6. An X-ray generating device according to any one of claims 1 to 3, characterized in that: The reserved air box (4) comprises a reserved box body (4a) and a reserved box cover (4b), the reserved box body (4a) and the oil tank cover (1b) are connected as a whole, the reserved box cover (4b) is fixedly connected to the top of the reserved box body (4a) by a plurality of screws, and the air hole (5) is arranged on the reserved box cover (4b).

Images