Cooling device for X-ray tube of orientation device

Abstract

The utility model relates to the technical field of X-ray tube refrigeration, and discloses an orientator X-ray tube refrigeration device, which solves the problems in the background technology, and comprises an X-ray tube, the X-ray tube is a side window type X-ray tube, a shell is sleeved outside the X-ray tube, a through hole is arranged on the side wall of the shell, and the through hole is communicated with the X-ray tube. A through hole is formed in the shell and matched with a window of the X-ray tube, a refrigeration fan is installed at one end of the shell through a bolt, a heat exchange fan is installed at the end, opposite to the refrigeration fan, of the shell through a stud, a ventilation channel is formed in the shell, and the two ends of the ventilation channel face the refrigeration fan and the heat exchange fan respectively. According to the X-ray tube, passing of heat dissipation airflow can be accelerated by adjusting the width of the ventilation channel, and then it is ensured that the X-ray tube can work in a stable state, and rays with the stable intensity peak value can be continuously emitted.

Description

Technical Field

[0001] The utility model belongs to the technical field of X-ray tube refrigeration, in particular to a refrigeration device for an X-ray tube of a direction finder. Background Art

[0002] An X-ray director is an instrument used to accurately measure and analyze the direction and intensity of X-rays. It is mainly used in scientific research, industrial inspection, medical imaging and other fields. It measures the angle between X-rays and the surface or internal structure of an object to provide accurate data for subsequent analysis. The X-ray tube is the core part of the director, and a bracket or housing is usually set outside the X-ray tube to connect it to other parts of the director.

[0003] The current orientation instrument has unstable peak intensity of X-ray tube during normal detection, which makes it difficult to test special crystals with low X-ray diffraction intensity, and there are large errors in detection precision and accuracy. Therefore, we proposed an orientation instrument X-ray tube cooling device. Utility Model Content

[0004] In order to solve the problem that the peak value of the radiation intensity generated by the X-ray tube during normal detection in the current orientation instrument is unstable, which makes it difficult to test special crystals with low X-ray diffraction intensity, and there are large errors in the detection precision and accuracy, the utility model provides the following technical solution: an orientation instrument X-ray tube refrigeration device, comprising an X-ray tube, the X-ray tube is a side window type X-ray tube, the outer sleeve of the X-ray tube is provided with a shell, the side wall of the shell is provided with a through hole, the through hole matches the window of the X-ray tube, a cooling fan is installed at one end of the shell by bolts, a heat exchange fan is installed at the end of the shell opposite to the cooling fan by studs, a ventilation channel is provided on the shell, the two ends of the ventilation channel are respectively facing the cooling fan and the heat exchange fan, and guide blades are rotatably provided in the ventilation channel.

[0005] Preferably, the housing comprises an upper jacket and a lower jacket, the upper jacket and the lower jacket are connected by bolts, the upper jacket and the lower jacket are oppositely provided with grooves, the cross-sections of the two grooves are semicircular, and the two grooves can be fitted to the outside of the X-ray tube from both sides.

[0006] Preferably, there are two ventilation channels, and the two ventilation channels are respectively arranged on the upper jacket and the lower jacket.

[0007] Preferably, the guide blade is rotatably connected in the ventilation channel via a rotating shaft, one end of the rotating shaft rotatably passes through the outer shell and is fixedly connected to a driven gear, a mounting groove is provided in the outer shell, a steering gear is installed in the mounting groove, an output end of the steering gear is fixedly connected to a driving gear, and the driven gear is meshingly connected to the driving gear.

[0008] Preferably, a heat-conducting layer is provided around the X-ray tube, and the heat-conducting layer is made of ceramic material.

[0009] Preferably, a refrigeration mechanism is installed on the side wall of the refrigeration fan, refrigeration fins are arranged inside the refrigeration mechanism, and the refrigeration mechanism is made of aluminum alloy material.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] By starting the refrigeration plate to cool, the surrounding air temperature is lowered through the refrigeration mechanism, and then the cold air is sucked in through the cooling fan, and the working X-ray tube is cooled through the ventilation channel. The cold air contacts the surface of the X-ray tube for heat exchange and cooling, and then the cold air that completes the heat exchange is drawn out through the heat exchange fan. In the process of heat dissipation, the driving gear can be driven to rotate by the steering gear, and then the guide blades are driven to rotate in the ventilation channel through the rotating shaft through the meshing driven gear, so as to adjust the width of the ventilation channel. When the ventilation channel becomes narrower, the air flow speed will increase, which can enhance the heat dissipation effect, thereby ensuring that the X-ray tube can work in a stable state and continuously emit rays with a stable intensity peak. However, when the X-ray tube is working, the operation of the cooling fan and the heat exchange fan, as well as the increase in the air flow speed, will cause vibration, resulting in unstable operation of the X-ray tube. By reducing the speed of the cooling fan and the heat exchange fan, the guide blades are driven to rotate by the steering gear, so that the width of the ventilation channel becomes larger, the air flow speed will decrease, and the vibration will be reduced, so that the X-ray tube can work in a stable state, and then the heat of the X-ray tube can be dissipated, thereby improving the accuracy and stability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the side section structure of the utility model as a whole;

[0015] Figure 3 It is a structural schematic diagram of the rear part of the housing of the utility model;

[0016] In the figure: 1. X-ray tube; 2. upper jacket; 3. lower jacket; 4. stud; 5. heat exchange fan; 6. ventilation channel; 7. refrigeration mechanism; 8. heat conduction layer; 9. guide blades; 10. rotating shaft; 11. driven gear; 12. servo; 13. driving gear; 14. through hole; 15. cooling fan. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] Depend on Figure 1-3 The utility model includes an X-ray tube 1, which is a side-window type X-ray tube. The outer shell of the X-ray tube 1 is provided with a shell, and the side wall of the shell is provided with a through hole 14, which matches the window of the X-ray tube 1. A cooling fan 15 is installed at one end of the shell by bolts, and a heat exchange fan 5 is installed at one end of the shell opposite to the cooling fan 15 by a stud 4. A ventilation channel 6 is provided on the shell, and both ends of the ventilation channel 6 are respectively facing the cooling fan 15 and the heat exchange fan 5, and a guide blade 9 is rotatably provided in the ventilation channel 6.

[0019] The housing includes an upper jacket 2 and a lower jacket 3, which are connected by bolts. The upper jacket 2 and the lower jacket 3 are both provided with grooves opposite to each other. The cross-sections of the two grooves are both semicircular. The two grooves can be fitted on the outside of the X-ray tube 1 from both sides. The upper jacket 2 and the lower jacket 3 are provided and connected by bolts, which is convenient for installation and maintenance.

[0020] There are two ventilation channels 6, and the two ventilation channels 6 are respectively arranged on the upper jacket 2 and the lower jacket 3.

[0021] The guide blade 9 is rotatably connected in the ventilation channel 6 via a rotating shaft 10. One end of the rotating shaft 10 rotatably passes through the outer shell and is fixedly connected to a driven gear 11. A mounting groove is provided in the outer shell, and a steering gear 12 is installed in the mounting groove. The output end of the steering gear 12 is fixedly connected to a driving gear 13, and the driven gear 11 is meshedly connected to the driving gear 13.

[0022] A heat-conducting layer 8 is circumferentially arranged on the X-ray tube 1 . The heat-conducting layer 8 is made of a ceramic material, which has an excellent heat-conducting effect.

[0023] A refrigeration mechanism 7 is installed on the side wall of the refrigeration fan 15. Refrigeration fins are arranged inside the refrigeration mechanism 7. The refrigeration mechanism 7 is made of aluminum alloy material.

[0024] Working principle: When in use, the refrigeration is started by starting the refrigeration sheet, the temperature of the surrounding air is lowered through the refrigeration mechanism 7, and then the cold air is sucked in through the cooling fan 15, and the working X-ray tube 1 is cooled through the ventilation channel 6. The cold air contacts the surface of the X-ray tube 1 for heat exchange and cooling, and then the cold air that has completed the heat exchange is drawn out through the heat exchange fan 5. In the process of heat dissipation, the driving gear 13 can be driven to rotate through the steering gear 12, and then the guide blades 9 can be driven to rotate in the ventilation channel 6 through the rotating shaft 10 through the meshing driven gear 11, so as to adjust the width of the ventilation channel 6. When the ventilation channel 6 becomes narrower, the air The flow velocity will increase, which can enhance the heat dissipation effect, thereby ensuring that the X-ray tube 1 can work in a stable state and continuously emit rays with a stable intensity peak value. However, when the X-ray tube 1 is working, the cooling fan 15 and the heat exchange fan 5 are working, and the increase in the air flow velocity will cause vibration, causing the X-ray tube 1 to work unstably. By reducing the speed of the cooling fan 15 and the heat exchange fan 5, the guide blades 9 are driven to rotate by the steering gear 12, and the width of the ventilation channel 6 is increased, the air flow velocity will be reduced, and the vibration will be reduced, so that the X-ray tube 1 can work in a stable state, thereby being able to dissipate heat from the X-ray tube 1 and improve the accuracy and stability of the test.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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

Claims

1. A cooling device for an X-ray tube of a directional instrument, comprising an X-ray tube (1), characterized in that: The X-ray tube (1) is a side-window type X-ray tube. The X-ray tube (1) is covered with a shell. The side wall of the shell is provided with a through hole (14). The through hole (14) matches the window of the X-ray tube (1). A cooling fan (15) is installed at one end of the shell by means of bolts. A heat exchange fan (5) is installed at the end of the shell opposite to the cooling fan (15) by means of a stud (4). A ventilation channel (6) is provided on the shell. The two ends of the ventilation channel (6) are respectively directed toward the cooling fan (15) and the heat exchange fan (5). A guide blade (9) is rotatably provided in the ventilation channel (6).

2. The refrigeration device for the X-ray tube of the orienter according to claim 1, characterized in that: The housing comprises an upper jacket (2) and a lower jacket (3), wherein the upper jacket (2) and the lower jacket (3) are connected by bolts, and the upper jacket (2) and the lower jacket (3) are both provided with grooves opposite to each other, and the cross-sections of the two grooves are both semicircular, and the two grooves can be fitted to the outside of the X-ray tube (1) from both sides.

3. The refrigeration device for the X-ray tube of the orienter according to claim 2, characterized in that: There are two ventilation channels (6), and the two ventilation channels (6) are respectively arranged on the upper jacket (2) and the lower jacket (3).

4. The X-ray tube cooling device for a direction finder according to claim 3, characterized in that: The guide blade (9) is rotatably connected to the ventilation passage (6) via a rotating shaft (10); one end of the rotating shaft (10) rotatably passes through the housing and is fixedly connected to a driven gear (11); a mounting groove is provided in the housing, a steering gear (12) is installed in the mounting groove, an output end of the steering gear (12) is fixedly connected to a driving gear (13), and the driven gear (11) is meshedly connected to the driving gear (13).

5. The X-ray tube cooling device for a directing instrument according to claim 1, characterized in that: The X-ray tube (1) is provided with a heat-conducting layer (8) in the circumferential direction, and the heat-conducting layer (8) is made of ceramic material.

6. The refrigeration device for the X-ray tube of the orienter according to claim 1, characterized in that: A refrigeration mechanism (7) is installed on the side wall of the refrigeration fan (15), and refrigeration fins are arranged inside the refrigeration mechanism (7). The refrigeration mechanism (7) is made of aluminum alloy material.

Images