High-heat X-ray tube and its cooling oil circuit

Abstract

The present invention discloses a cooling oil circuit for a high-heat X-ray tube. A cooling collar is arranged at the corresponding position where the cathode assembly and the oil guide pipe are installed on the cathode disk. The two ends of the cooling collar are respectively provided with an oil inlet pipe installation port and a cathode assembly avoidance port, and an oil guide groove is arranged on the lower side facing the cathode disk. The oil guide groove extends from the oil inlet pipe installation port to the cathode assembly avoidance port to form at least a part of the cathode assembly avoidance port and then extends to the outer side of the cathode disk. The X-ray tube and its cooling oil circuit change the traditional cooling oil circuit by arranging the cooling collar, so that the cooling oil obtains the maximum flow rate in the tube core window, thereby taking away the window heat in time and maintaining a low temperature, solving the technical problem that the tube window is easily overheated and cannot work or fails, and also prolonging the service life of the tube.

Description

Technical Field

[0001] The invention relates to an X-ray tube and a cooling oil circuit, in particular to a high-heat X-ray tube and a cooling oil circuit. Background Art

[0002] 99% of the energy in the X-ray tube assembly is converted into heat energy, and 20% of the electrons directly hit the X-ray window, where the temperature is very high. Figure 1 The oil circuit structure currently used can reduce the oil flow rate on the tube core wall to zero, resulting in an increase in the tube core temperature and overheating of the window, which limits the increase in tube power and the extension of its life. Summary of the invention

[0003] In order to overcome the above defects, the present invention provides a high-heat X-ray tube and its cooling oil circuit, which changes the traditional cooling oil circuit so that the oil flow rate is the largest at the tube core window, and can take away the heat of the window in time to keep the window at a low temperature. The invention of the oil circuit solves the cooling efficiency of high-heat capacity tubes, greatly improves the power of the tube and extends its life.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a cooling oil circuit of a high-heat X-ray tube, including an oil inlet on a cathode disk of the X-ray tube and an oil outlet at the end of an anode assembly of the X-ray tube, the oil outlet forming a circulating cooling closed oil circuit with the oil inlet through a pipeline, an oil pump and a heat exchanger, a cooling collar is arranged at a corresponding position of the cathode disk where the cathode assembly and the oil guide pipe are installed, the two ends of the cooling collar are respectively provided with an oil inlet installation port and a cathode assembly avoidance port, and an oil guide groove is arranged on the lower side facing the cathode disk, the oil guide groove extends from the oil inlet installation port to the cathode assembly avoidance port to form at least a part of the cathode assembly avoidance port and then extends to the outer side of the cathode disk; the oil guide pipe is installed on the oil inlet installation port of the cooling collar, and the cathode assembly of the X-ray tube is installed on the cathode assembly avoidance port of the cooling collar.

[0005] As a further improvement of the present invention, the oil guide groove includes a first oil guide groove surrounding the oil inlet pipe installation port, a second oil guide groove extending from two ends of the first oil guide groove to the opposite side edges of the cathode assembly avoidance port respectively, and a third oil guide groove surrounding the outer periphery of the cathode assembly avoidance port and merging to form a width greater than the first oil guide groove.

[0006] As a further improvement of the present invention, the two second oil guiding grooves are symmetrically arranged.

[0007] As a further improvement of the present invention, an oil inlet pipe installation conduit is provided on the oil inlet pipe installation opening, and the lower end of the oil inlet pipe is sealingly installed on the oil inlet pipe installation conduit.

[0008] As a further improvement of the present invention, a cooling collar installation groove is formed on the upper side of the cathode disk corresponding to the cooling collar installation position, and an oil guide channel is formed between the oil guide groove of the cooling collar and the cooling collar installation groove after the two are fixed.

[0009] As a further improvement of the present invention, the width of the third oil guiding groove is greater than the radius of the cathode assembly avoidance opening and is smaller than the diameter of the cathode assembly avoidance opening.

[0010] The present invention also provides an X-ray tube provided with the above cooling oil circuit.

[0011] As a further improvement of the present invention, a shell window assembly is connected to the lower side of the cathode disk, and the anode assembly is installed below the shell window assembly.

[0012] The beneficial effects of the present invention are as follows: the X-ray tube and its cooling oil circuit change the traditional cooling oil circuit by setting a cooling collar, so that the cooling oil can obtain the maximum flow rate in the tube core window, thereby taking away the window heat in time and maintaining a low temperature, solving the technical problem of failure to work or failure caused by easy overheating of the tube window, and also prolonging the service life of the tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the existing oil circuit structure;

[0014] Figure 2 This is a schematic diagram of the oil circuit structure of the present invention;

[0015] Figure 3 It is a structural schematic diagram of the X-ray tube of the present invention;

[0016] Figure 4 for Figure 3 Schematic diagram of partial decomposition structure;

[0017] Figure 5 It is a schematic diagram of the structure of the cooling collar of the present invention;

[0018] Figure 6 for Figure 5 Schematic diagram of the structure from another perspective.

[0019] Combined with the attached drawings, the following description is given:

[0020] 1——cathode assembly; 2——cathode disk;

[0021] 21——Cooling collar installation slot; 3——Shell window assembly;

[0022] 4——anode assembly; 5——cooling collar;

[0023] 51——Oil inlet pipe installation port; 511——Oil inlet pipe installation guide tube;

[0024] 52——cathode assembly avoidance port; 53——oil guide groove;

[0025] 531——first oil guide groove; 532——second oil guide groove;

[0026] 533——the third oil guide groove; 101——the oil inlet pipe;

[0027] 102——oil outlet pipe; 103——oil pump;

[0028] 104——heat exchanger; 105——oil guide pipe. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] See also Figure 2 , is a cooling oil circuit of a high-heat X-ray tube described in the present invention, including an oil inlet 101 arranged on the cathode disk 2 of the X-ray tube and an oil outlet 102 arranged at the end of the anode assembly 4 of the X-ray tube. The oil outlet 102 forms a circulating cooling closed oil circuit with the oil inlet 101 through a pipeline, an oil pump 103 and a heat exchanger 104.

[0031] With attached Figure 1 The difference from the existing cooling oil circuit is that the main innovation of the present invention is that a cooling collar 5 is arranged at the corresponding position of the cathode assembly 1 and the oil guide pipe 105 on the upper side of the cathode disk 2. The two ends of the cooling collar 5 are respectively provided with an oil inlet pipe installation port 51 and a cathode assembly avoidance port 52, and an oil guide groove 53 is arranged on the lower side facing the cathode disk 2. The oil guide groove 53 extends from the oil inlet pipe installation port 51 to the cathode assembly avoidance port 52 to form at least a part of the cathode assembly avoidance port 52 and then extends to the outer side of the cathode disk 2. The oil guide pipe 105 is installed on the oil inlet pipe installation port 51 of the cooling collar 5, and the cathode assembly 1 of the X-ray tube is installed on the cathode assembly avoidance port 52 of the cooling collar 5. In this way, the cooling oil of the X-ray tube is changed, that is, after entering the cooling collar 5 from the oil inlet 101 through the oil guide pipe 105, the cooling oil is guided from the center position of the cathode disk 2 through the oil guide groove 53 set on the lower side of the cooling collar 5 to flow through the vicinity of the cathode assembly avoidance port 52 (i.e., the tube core window) and then converged and guided out, so that the cooling oil at the tube core window position obtains the maximum flow rate and takes away the heat to the maximum extent.

[0032] See attached Figure 5-6, is a schematic diagram of the structure of a cooling collar according to the present invention, wherein the oil guide groove 53 includes a first oil guide groove 531 surrounding the oil inlet pipe installation port 51, a second oil guide groove 532 extending from two ends of the first oil guide groove 31 to the opposite sides of the cathode assembly avoidance port (2), and a third oil guide groove 533 surrounding the outer periphery of the cathode assembly avoidance port 52 and merging to form a width greater than the first oil guide groove 531. The two second oil guide grooves 532 are symmetrically arranged.

[0033] See attached Figure 3 The oil inlet pipe installation port 51 is provided with an oil inlet pipe installation conduit 511, and the lower end of the oil inlet pipe 101 is sealed and installed on the oil inlet pipe installation conduit 511, so that the cooling oil is directly installed on the cooling collar 5 from the oil inlet pipe 101 to directly introduce the cooling oil into the cooling collar 5.

[0034] See attached Figure 4 A cooling collar mounting groove 21 is formed on the upper side of the cathode disk 2 corresponding to the mounting position of the cooling collar 5, and an oil guide channel is formed between the oil guide groove 53 of the cooling collar 5 and the cooling collar mounting groove 21 after the two are fixed to guide the cooling oil into the tube core window and take away a large amount of heat on the tube core window.

[0035] See attached Figure 4 The width of the third oil guide groove 533 is greater than the radius of the cathode assembly avoidance opening 52 and smaller than the diameter of the cathode assembly avoidance opening 52. In this way, the cooling oil can be fully merged and then guided to the window shell assembly.

[0036] See also Figure 3-4 , is an X-ray tube described in the present invention, comprising a cathode assembly 1, a cathode disk 2, a shell window assembly 3 and an anode assembly 4, wherein the cathode assembly 1 is mounted on the upper side of the cathode disk 2, the shell window assembly 3 is mounted on the lower side of the cathode disk 2, and the anode assembly 4 is mounted below the shell window assembly 3. The X-ray tube is provided with a cooling oil circuit formed by the above-mentioned cooling collar 5 on the cathode disk 2, and the cooling oil is directly introduced from the oil inlet 101 into the cooling collar 5 and then discharged after passing through the tube core window, and the maximum flow rate is obtained at the tube core window to maximize the heat removal.

[0037] It can be seen that the X-ray tube and its cooling oil circuit, by setting a cooling collar, change the traditional cooling oil circuit, so that the cooling oil can obtain the maximum flow rate in the tube core window, so as to take away the heat of the window in time and maintain a low temperature, thus solving the technical problem of the tube window being unable to work or fail due to overheating, and also improving the service life of the tube.

[0038] Many specific details are described in the above description to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited to the specific implementation disclosed above. At the same time, any person familiar with the art can make many possible changes and modifications to the technical solution of the present invention using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A cooling oil circuit for a high-heat X-ray tube, comprising an oil inlet (101) provided on a cathode disk (2) of the X-ray tube and an oil outlet (102) provided at the end of an anode assembly (4) of the X-ray tube, the oil outlet (102) and the oil inlet (101) forming a circulating cooling closed oil circuit through a pipeline, an oil pump (103) and a heat exchanger (104), characterized in that: A cooling collar (5) is arranged at the corresponding position of the cathode disk (2) where the cathode assembly (1) and the oil guide pipe (105) are installed. The two ends of the cooling collar (5) are respectively provided with an oil inlet pipe installation port (51) and a cathode assembly avoidance port (52). An oil guide groove (53) is arranged on the lower side facing the cathode disk (2). The oil guide groove (53) extends from the oil inlet pipe installation port (51) to the cathode assembly avoidance port (52) to at least partially surround the cathode assembly avoidance port (52) and then extends to the outer side of the cathode disk (2). The oil guide pipe (105) is installed on the oil inlet pipe installation port (51) of the cooling collar (5), and the cathode assembly (1) of the X-ray tube is installed on the cathode assembly avoidance port (52) of the cooling collar (5); The oil guide groove (53) comprises a first oil guide groove (531) surrounding the oil inlet pipe installation port (51), a second oil guide groove (532) extending from two ends of the first oil guide groove (531) to opposite sides of the cathode component avoidance port (52), and a third oil guide groove (533) surrounding the outer periphery of the cathode component avoidance port (52) and then merging to form a third oil guide groove (533) having a width greater than that of the first oil guide groove (531), and the two second oil guide grooves (532) are symmetrically arranged; The oil inlet pipe installation port (51) is provided with an oil inlet pipe installation conduit (511), and the lower end of the oil inlet port (101) is sealingly installed on the oil inlet pipe installation conduit (511); A cooling collar installation groove (21) is formed on the upper side surface of the cathode disk (2) corresponding to the installation position of the cooling collar (5), and an oil guide channel is formed between the oil guide groove (53) of the cooling collar (5) and the cooling collar installation groove (21) after the two are fixed; The width of the third oil guide groove (533) is greater than the radius of the cathode assembly avoidance opening (52), and smaller than the diameter of the cathode assembly avoidance opening (52).

2. An X-ray tube, characterized in that: The cooling oil circuit according to claim 1 is provided.

3. The X-ray tube according to claim 2, characterized in that: A shell window assembly (3) is connected to the lower side of the cathode disk (2), and the anode assembly (4) is installed below the shell window assembly (3).

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