Oil changing device for X-ray tube assembly

Abstract

The utility model discloses an oil changing device for an X-ray tube assembly, which comprises a vacuum tank, a heater, a vacuum pump, an oil injection pipeline, an oil discharge pipeline, a filter and a driving pump, and the heater is used for heating insulating oil in the vacuum tank; the vacuum pump is connected with the vacuum tank and is used for vacuumizing the interior of the vacuum tank; one end of the oil injection pipeline is connected with the vacuum tank, and the other end of the oil injection pipeline is connected with an oil inlet of the X-ray tube assembly; one end of the oil discharge pipeline is connected with an oil outlet of the X-ray tube assembly, and the other end of the oil discharge pipeline is suspended and is used for discharging insulating oil in the X-ray tube assembly; the filter is arranged on the oil injection pipeline; and the driving pump is arranged on the oil discharging pipeline. According to the utility model, the insulating oil in the X-ray tube assembly can be replaced on site, time and labor are saved, and the normal use of equipment is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of X-ray tube technology, and in particular to an oil changing device for X-ray tube assemblies. Background Technology

[0002] X-ray tube assemblies require tens to hundreds of kilovolts to operate, generating heat of up to tens of kilowatts. Therefore, they are typically filled with insulating oil for high-voltage insulation and heat conduction. When the quality of the insulating oil deteriorates, insulation breakdown can occur within the product, commonly referred to in the industry as external arcing. This can lead to product malfunction or even damage.

[0003] When an X-ray tube assembly experiences arcing outside the tube due to a problem with the insulating oil, engineers have no choice but to remove the product from the machine and return it to the factory for repair, which is time-consuming, labor-intensive, and affects the use of the equipment. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an oil changing device for X-ray tube assemblies, which enables on-site replacement of insulating oil within the X-ray tube assembly, saving time and effort without affecting the normal operation of the equipment.

[0005] This utility model is achieved through the following technical solution:

[0006] An oil changing device for an X-ray tube assembly, comprising:

[0007] Vacuum container;

[0008] A heater for heating the insulating oil inside the vacuum tank;

[0009] A vacuum pump, connected to the vacuum tank, is used to evacuate the inside of the vacuum tank.

[0010] The oil injection pipeline has one end connected to the vacuum tank and the other end connected to the oil inlet of the X-ray tube assembly.

[0011] An oil drain line, one end of which is connected to the oil outlet of the X-ray tube assembly and the other end is suspended, is used to drain the insulating oil inside the X-ray tube assembly;

[0012] A filter is installed on the oil injection line;

[0013] A drive pump is installed on the drain line.

[0014] Furthermore, the oil changing device also includes a first dual-circuit switch, and the oil filling pipeline includes a first main oil filling line, a second main oil filling line, and a first branch oil filling line and a second branch oil filling line connected in parallel between the first main oil filling line and the second main oil filling line.

[0015] One end of the first oil injection main line is connected to the vacuum tank, and the other end is connected to the first inlet of the first dual-circuit switch;

[0016] One end of the first oil injection branch is connected to the first outlet of the first dual-circuit switch;

[0017] One end of the second oil injection branch is connected to the second outlet of the first dual-circuit switch;

[0018] One end of the second main oil injection line is connected to the oil inlet of the X-ray tube assembly, and the other end is connected to both the other end of the first oil injection branch and the other end of the second oil injection branch.

[0019] The filter is installed on the first oil injection branch.

[0020] Furthermore, the oil changing device also includes a second dual-circuit switch and an oil return line, and the oil drain line includes a main oil drain line and a branch oil drain line;

[0021] One end of the main oil drain line is connected to the oil outlet of the X-ray tube assembly, and the other end is connected to the inlet of the second dual-circuit switch;

[0022] One end of the oil drain branch is connected to the first discharge port of the second dual-circuit switch, and the other end is suspended.

[0023] One end of the oil return pipeline is connected to the second discharge port of the second dual-circuit switch, and the other end is connected to the vacuum tank.

[0024] The drive pump is located on the main oil drain line.

[0025] Furthermore, the oil change device also includes a second switching valve, which is disposed on the oil drain branch and is used to control the on / off state of the oil drain branch.

[0026] Furthermore, the oil changing device also includes a connecting pipeline, through which the vacuum tank is connected to the oil drum.

[0027] Furthermore, the oil change device also includes a first switching valve, which is disposed on the connecting pipeline and is used to control the on / off state of the connecting pipeline.

[0028] Furthermore, the oil change device also includes a base, on which the vacuum tank, heater, vacuum pump, oil filling line, oil drain line, filter and drive pump are all integrated.

[0029] Furthermore, the oil changing device also includes multiple rollers, which are fixed to the bottom of the base.

[0030] Furthermore, the oil changing device also includes a cover plate, and a cavity is formed between the cover plate and the base. The vacuum tank, heater, vacuum pump, oil filling line, oil drain line, filter and drive pump are all located in the cavity.

[0031] Furthermore, the other end of the oil injection pipeline is provided with a first adapter, which is detachably connected to the oil inlet of the X-ray tube assembly; one end of the oil drain pipeline is provided with a second adapter, which is detachably connected to the oil outlet of the X-ray tube assembly.

[0032] Compared with existing technologies, the advantages of this utility model are:

[0033] 1. This device allows for on-site replacement of the insulating oil inside the X-ray tube assembly, saving time and effort without affecting the normal use of the equipment.

[0034] 2. This device can heat the insulating oil under vacuum conditions on site to remove moisture and enhance its insulation performance. It can also remove impurities from the insulating oil through a filter.

[0035] 3. Under vacuum conditions, by driving the pump to circulate, impurities and gases in the X-ray tube assembly can be removed, ensuring the cleanliness of the X-ray tube assembly as much as possible.

[0036] 4. This device can directly extract the insulating oil from the X-ray tube assembly into a vacuum tank, filter out water vapor in the vacuum tank, and then re-inject it into the X-ray tube assembly, realizing the recycling of the insulating oil. At the same time, impurities in the insulating oil can be removed through a filter. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the oil change device.

[0038] Figure 2 This is a partial structural diagram of the oil change device;

[0039] Figure 3 This is a top view of part of the oil change device.

[0040] 1. X-ray tube assembly; 2. Vacuum tank; 3. Heater; 4. Vacuum pump; 5. Oil injection line; 50. First main oil injection line; 51. Second main oil injection line; 52. First branch oil injection line; 53. Second branch oil injection line; 6. Oil drain line; 60. Main oil drain line; 61. Branch oil drain line; 7. Filter; 8. Drive pump; 9. First dual-way switch; 90. First inlet; 91. First outlet; 92. Second outlet; 10. Second dual-way switch; 100. Inlet; 101. First discharge port; 102. Second discharge port; 11. Return oil line; 12. Connecting line; 13. First switching valve; 14. Second switching valve; 15. Base; 16. Roller; 17. Cover plate. Detailed Implementation

[0041] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0042] like Figures 1-3 As shown, an embodiment of the present invention provides an oil changing device for an X-ray tube assembly, comprising a vacuum tank 2, a heater 3, a vacuum pump 4, an oil filling pipeline 5, an oil draining pipeline 6, a filter 7, and a drive pump 8. The heater 3 is used to heat the insulating oil in the vacuum tank 2. The vacuum pump 4 is connected to the vacuum tank 2 to evacuate the interior of the vacuum tank 2. One end of the oil filling pipeline 5 is connected to the vacuum tank 2, and the other end is connected to the oil inlet of the X-ray tube assembly 1. One end of the oil draining pipeline 6 is connected to the oil outlet of the X-ray tube assembly 1, and the other end is suspended for discharging the insulating oil in the X-ray tube assembly 1. The filter 7 is installed on the oil filling pipeline 5, and the drive pump 8 is installed on the oil draining pipeline 6.

[0043] In this embodiment, the heater 3 is a heating coil, which is spiral or coil-shaped and fixed inside the vacuum tank 2. The heater 3 can heat the insulating oil in the vacuum tank 2 to a certain temperature, so that the water vapor in the insulating oil can be fully removed, thereby improving the insulation strength of the insulating oil.

[0044] The oil change device also includes a first dual-circuit switch 9, and the oil filling pipeline 5 includes a first main oil filling pipeline 50, a second main oil filling pipeline 51, and a first branch oil filling pipeline 52 and a second branch oil filling pipeline 53 connected in parallel between the first main oil filling pipeline 50 and the second main oil filling pipeline 51. One end of the first main oil filling pipeline 50 is connected to the vacuum tank 2, and the other end is connected to the first inlet 90 of the first dual-circuit switch 9. One end of the first branch oil filling pipeline 52 is connected to the first outlet 91 of the first dual-circuit switch 9. One end of the second branch oil filling pipeline 53 is connected to the second outlet 92 of the first dual-circuit switch 9. One end of the second main oil filling pipeline 51 is connected to the oil inlet of the X-ray tube assembly 1, and the other end is connected to the other end of the first branch oil filling pipeline 52 and the other end of the second branch oil filling pipeline 53. The filter 7 is installed on the first branch oil filling pipeline 52.

[0045] The oil change device also includes a second dual-circuit switch 10 and a return oil line 11. The drain line 6 includes a main drain line 60 and a branch drain line 61. One end of the main drain line 60 is connected to the outlet of the X-ray tube assembly 1, and the other end is connected to the inlet 100 of the second dual-circuit switch 10. One end of the branch drain line 61 is connected to the first discharge port 101 of the second dual-circuit switch 10, and the other end is suspended. One end of the return oil line 11 is connected to the second discharge port 102 of the second dual-circuit switch 10, and the other end is connected to the vacuum tank 2. The drive pump 8 is installed on the main drain line 60.

[0046] The oil change device also includes a second switching valve 14, which is installed on the oil drain branch 61 and is used to control the opening and closing of the oil drain branch 61.

[0047] The oil changing device also includes a connecting pipe 12. The vacuum tank 2 is connected to the oil drum through the connecting pipe 12. The insulating oil in the oil drum can enter the vacuum tank 2 through the connecting pipe 12. Of course, the insulating oil in the vacuum tank 2 can also be discharged through the connecting pipe 12.

[0048] The oil change device also includes a first switching valve 13, which is installed on the connecting pipe 12 and is used to control the opening and closing of the connecting pipe 12.

[0049] The oil change device also includes a base 15, a vacuum tank 2, a heater 3, a vacuum pump 4, an oil filling line 5, an oil drain line 6, a filter 7, and a drive pump 8, all of which are integrated on the base 15, making the entire oil change device compact.

[0050] The oil change device also includes multiple rollers 16, which are fixed to the bottom of the base 15, making the oil change device easy to move. The rollers 16 are omnidirectional wheels, which can move in any direction, and are equipped with brake pads to ensure that the device can be parked stably.

[0051] The oil changing device also includes a cover plate 17, which forms a cavity with the base 15. The vacuum tank 2, heater 3, vacuum pump 4, oil filling line 5, oil drain line 6, filter 7, and drive pump 8 are all located in the cavity. When the oil changing device is not in use, the cover plate 17 can be covered to prevent damage to the components.

[0052] The other end of the oil filling line 5 is equipped with a first adapter (not shown in the figure), which is detachably connected to the oil inlet of the X-ray tube assembly 1; one end of the oil drain line 6 is equipped with a second adapter (not shown in the figure), which is detachably connected to the oil outlet of the X-ray tube assembly 1. The first and second adapters can be fixed by means of threads, clamps, etc.

[0053] During work, the following operations can be performed individually or in combination, and the specific operation process is as follows:

[0054] Oil draining process: Connect oil injection line 5 and oil draining line 6 to X-ray tube assembly 1. Open the first switch valve 13 and the second switch valve 14 to allow air to circulate between the inside and outside. Adjust the first dual-circuit switch 9 to block the first oil injection branch 52 where filter 7 is located and open the second oil injection branch 53. At this time, start the drive pump 8 to extract the insulating oil from X-ray tube assembly 1, and adjust the second dual-circuit switch 10 to open the oil draining branch 61 and block the return oil line 11. The extracted insulating oil is discharged from the oil draining branch 61. It is worth noting that there is no insulating oil in vacuum tank 2 during the oil draining process.

[0055] Insulating oil reuse: Connect the oil injection line 5 and the oil discharge line 6 to the X-ray tube assembly 1. Close the second switch valve 14 and the first switch valve 13. Adjust the first dual-circuit switch 9 to open the first oil injection branch 52 where the filter 7 is located and block the second oil injection branch 53. At the same time, adjust the second dual-circuit switch 10 to block the oil discharge branch 61 and open the return oil line 11. At this time, turn on the vacuum pump 4 to extract the insulating oil from the X-ray tube assembly 1 and send it to the vacuum tank 2 through the return oil line 11.

[0056] Insulating oil preparation: Connect the oil filling line 5 and the oil drain line 6 to the X-ray tube assembly 1. Open the first switch valve 13, close the second switch valve 14, and insert the connecting line 12 into the oil drum. Turn on the vacuum pump 4 to pump the insulating oil from the oil drum into the vacuum tank 2. After a certain amount has been collected, close the first switch valve 13, and the vacuum pump 4 continues to operate. Simultaneously, turn on the heater 3 to heat the oil to a certain temperature, such as 70℃, to fully remove moisture from the oil and improve its insulation strength. If necessary, adjust the first double-circuit switch 9 to open the first oil filling branch 52 where the filter 7 is located and close the second oil filling branch 53. At the same time, adjust the second double-circuit switch 10 to close the oil drain branch 61 and open the return oil line 11. Turn on the filter 7 and the drive pump 8 to circulate the insulating oil in the pipeline. During the circulation process, the heater 3 is used to remove moisture, and the filter 7 is used to remove impurities from the oil. The heating and filtration process needs to last for more than half an hour to ensure the filtration effect.

[0057] Oil filling: Connect the oil filling line 5 and the oil drain line 6 to the X-ray tube assembly 1. Close the second switch valve 14 and the first switch valve 13, and turn on the vacuum pump 4 to ensure the system is in a vacuum state. Remove the air from the X-ray tube assembly 1. Adjust the first dual-way switch 9 to open the first oil filling branch 52 where the filter 7 is located, and block the second oil filling branch 53. At the same time, adjust the second dual-way switch 10 to block the oil drain branch 61, open the return oil line 11, and turn on the filter 7 and the drive pump 8. Insulating oil is pumped into the X-ray tube assembly 1. The insulating oil circulates between the X-ray tube assembly 1 and the vacuum tank 2, carrying out impurities and foreign objects inside the X-ray tube assembly 1. During the circulation process, impurities and foreign objects are filtered by the filter 7. After the X-ray tube assembly 1 is filled with insulating oil, turn off the system and remove the X-ray tube assembly 1.

[0058] The beneficial effects of this utility model are:

[0059] 1. This device allows for on-site replacement of the insulating oil inside the X-ray tube assembly 1, saving time and effort without affecting the normal use of the equipment.

[0060] 2. This device can heat the insulating oil under vacuum conditions on site to remove moisture and enhance its insulation performance. It can also remove impurities from the insulating oil through filter 7.

[0061] 3. Under vacuum conditions, impurities and gases in the X-ray tube assembly 1 can be removed by driving pump 8 to circulate and ensure the cleanliness of the X-ray tube assembly 1 as much as possible.

[0062] 4. This device can directly extract the insulating oil from the X-ray tube assembly 1 into the vacuum tank 2, filter out water vapor in the vacuum tank 2, and then re-inject it into the X-ray tube assembly 1 to realize the recycling of the insulating oil. At the same time, the filter 7 can remove impurities from the insulating oil.

[0063] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An oil changing device for an X-ray tube assembly, characterized in that, include: Vacuum container (2); Heater (3), the heater (3) is used to heat the insulating oil in the vacuum tank (2); A vacuum pump (4) is connected to the vacuum tank (2) and is used to evacuate the inside of the vacuum tank (2); Oil injection line (5), one end of which is connected to the vacuum tank (2) and the other end is connected to the oil inlet of the X-ray tube assembly (1); An oil drain pipe (6) is provided, with one end connected to the oil outlet of the X-ray tube assembly (1) and the other end suspended, for draining the insulating oil inside the X-ray tube assembly (1). A filter (7) is provided on the oil injection line (5); A drive pump (8) is installed on the oil drain line (6).

2. The oil changing device according to claim 1, characterized in that, The oil changing device also includes a first dual-circuit switch (9), and the oil filling pipeline (5) includes a first main oil filling pipeline (50), a second main oil filling pipeline (51), and a first branch oil filling pipeline (52) and a second branch oil filling pipeline (53) connected in parallel between the first main oil filling pipeline (50) and the second main oil filling pipeline (51). One end of the first oil injection main line (50) is connected to the vacuum tank (2), and the other end is connected to the first inlet (90) of the first dual-circuit switch (9); One end of the first oil injection branch (52) is connected to the first outlet (91) of the first dual-circuit switch (9); One end of the second oil injection branch (53) is connected to the second outlet (92) of the first dual-circuit switch (9); One end of the second oil injection main line (51) is connected to the oil inlet of the X-ray tube assembly (1), and the other end is connected to the other end of the first oil injection branch line (52) and the other end of the second oil injection branch line (53); The filter (7) is installed on the first oil injection branch (52).

3. The oil changing device according to claim 1, characterized in that, The oil change device also includes a second dual-circuit switch (10) and an oil return line (11), and the oil drain line (6) includes an oil drain main line (60) and an oil drain branch line (61); One end of the main oil drain line (60) is connected to the oil outlet of the X-ray tube assembly (1), and the other end is connected to the inlet (100) of the second dual-circuit switch (10). One end of the oil drain branch (61) is connected to the first discharge port (101) of the second dual-circuit switch (10), and the other end is suspended. One end of the return oil pipeline (11) is connected to the second discharge port (102) of the second dual-circuit switch (10), and the other end is connected to the vacuum tank (2); The drive pump (8) is installed on the main drain line (60).

4. The oil changing device according to claim 3, characterized in that, The oil change device also includes a second switching valve (14), which is disposed on the oil drain branch (61) and is used to control the opening and closing of the oil drain branch (61).

5. The oil changing device according to claim 1, characterized in that, The oil changing device also includes a connecting pipe (12), through which the vacuum tank (2) is connected to the oil drum.

6. The oil changing device according to claim 5, characterized in that, The oil change device also includes a first switching valve (13), which is disposed on the connecting pipeline (12) and is used to control the opening and closing of the connecting pipeline (12).

7. The oil changing device according to claim 1, characterized in that, The oil change device also includes a base (15), and the vacuum tank (2), heater (3), vacuum pump (4), oil injection line (5), oil drain line (6), filter (7) and drive pump (8) are all integrated on the base (15).

8. The oil changing device according to claim 7, characterized in that, The oil changing device also includes multiple rollers (16) which are fixed to the bottom of the base (15).

9. The oil changing device according to claim 7, characterized in that, The oil changing device also includes a cover plate (17), and a cavity is formed between the cover plate (17) and the base (15). The vacuum tank (2), heater (3), vacuum pump (4), oil injection line (5), oil drain line (6), filter (7) and drive pump (8) are all located in the cavity.

10. The oil changing device according to claim 1, characterized in that, The other end of the oil injection pipeline (5) is provided with a first adapter, which is detachably connected to the oil inlet of the X-ray tube assembly (1); one end of the oil drain pipeline (6) is provided with a second adapter, which is detachably connected to the oil outlet of the X-ray tube assembly (1).

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