Gas collection and analysis device for X-ray tube assembly

Abstract

The utility model provides a gas collecting and analyzing device for an X-ray tube assembly, which is used for collecting and analyzing gas in the X-ray tube assembly and comprises a movable workbench, a gas collecting and analyzing device and a gas collecting and analyzing device, and the movable workbench is used for placing the X-ray tube assembly; a first space of the internal space of the oil storage tank is filled with first insulating oil, and the first insulating oil is communicated with second insulating oil in the X-ray tube assembly through a first valve; the gas component detection device is communicated with the second space of the oil storage tank through a second valve and is used for detecting components of gas in the second space; wherein the first space is communicated with the second space. The X-ray tube assembly gas collection and analysis device can collect and analyze gas components in an X-ray tube, so that the working condition of an X-ray bulb tube is judged.

Description

Technical Field

[0001] This disclosure relates to the field of machinery, and more specifically, to a gas collection and analysis device for an X-ray tube assembly. Background Technology

[0002] The X-ray tube assembly is a core component of X-ray machines, medical computed tomography (CT) scanners, and other similar equipment. It is also a consumable part, its primary function being to provide an X-ray source. When the X-ray tube assembly malfunctions, it often requires disassembly and investigation of its internal components. During this process, the inside of the tube may be under positive pressure, and directly opening the tube would be dangerous. Furthermore, this positive pressure may be caused by gases inside the tube, which are crucial for determining the X-ray tube's operational status. Directly opening the tube would make it difficult to collect these gases. Utility Model Content

[0003] The purpose of this invention is to provide a gas collection and analysis device for X-ray tube assemblies, which can collect and analyze the gas inside the tube sleeve when disassembling the X-ray tube assembly.

[0004] According to an exemplary embodiment of this disclosure, an X-ray tube assembly gas collection and analysis device is provided for collecting and analyzing gas within an X-ray tube assembly, comprising: a movable worktable for placing the X-ray tube assembly; an oil tank, wherein a first space within the oil tank is filled with a first insulating oil, the first insulating oil and a second insulating oil within the X-ray tube assembly are connected via a first valve; and a gas composition detection device, connected to a second space of the oil tank via a second valve, for detecting the composition of gas within the second space; wherein the first space and the second space are connected.

[0005] According to an exemplary embodiment of this disclosure, the movable stage can cause the X-ray tube assembly to rotate and / or sway.

[0006] According to an exemplary embodiment of the present disclosure, the device further includes a first pump, wherein the first insulating oil and the second insulating oil are connected through a first passage and a second passage, and the first pump and the first valve are located in the first passage; in response to the first valve being open, the first pump causes the first insulating oil and the second insulating oil to circulate through the first passage and the second passage.

[0007] According to an exemplary embodiment of this disclosure, a second pump is further included, which is connected to the second space and the gas composition detection device respectively; in response to the second valve being in an open state, the second pump is used to pump gas from the second space to the gas composition detection device.

[0008] According to an exemplary embodiment of this disclosure, a gas pressure detection device is also included, which is connected to the second space and is used to detect the pressure of the gas in the second space.

[0009] According to an exemplary embodiment of this disclosure, a third valve is also included, which is in communication with the second space and the atmosphere, respectively.

[0010] According to an exemplary embodiment of this disclosure, one end of the third valve is connected to the atmosphere, and the other end is connected to the second space via the second pump and the second valve; in response to the opening of the third valve and the second valve, the second pump is used to pump gas in the second space to the atmosphere.

[0011] According to an exemplary embodiment of this disclosure, the system further includes a third pump and a fourth valve, the third pump being in communication with the second space via the fourth valve; in response to the second valve being closed, the fourth valve is opened, and the third pump can extract gas from the second space.

[0012] According to an exemplary embodiment of this disclosure, the movable worktable is a four-axis worktable.

[0013] According to an exemplary embodiment of this disclosure, the second insulating oil and the first insulating oil have the same composition.

[0014] According to exemplary embodiments of this disclosure, it is possible to collect, measure, and analyze residual gases, such as those caused by arcing, within the aforementioned tube sleeve, thereby enabling safe, rapid, and effective investigation of X-ray tube assembly. Attached Figure Description

[0015] The following figures are for illustrative purposes only and do not limit the scope of the present invention.

[0016] Figure 1 This is a schematic diagram of an X-ray tube assembly gas collection and analysis device, which is an example of this disclosure.

[0017] Label Explanation

[0018] 1 X-ray tube assembly

[0019] 2 First Pump

[0020] 3 First valve

[0021] 4. Oil storage tank

[0022] 5. Third valve

[0023] 6. Fourth valve

[0024] 7 Third Pump

[0025] 8 Second valve

[0026] 9 Second Pump

[0027] 10 Gas pressure detection device

[0028] 11 Gas composition detection device

[0029] 12 Movable worktables Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following embodiments are provided to further illustrate this disclosure in detail. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit this disclosure.

[0031] In one exemplary embodiment, see Figure 1 A gas collection and analysis device for X-ray tube assemblies is provided for collecting and analyzing gases within X-ray tube assemblies. The device includes a movable stage 12, an oil reservoir 4, and a gas composition detection device 11. The movable stage 12 is used to place the X-ray tube assembly 1, and its movement is achieved, for example, by rotation and / or shaking. The purpose of this movement is to move air bubbles in the second insulating oil within the tube sleeve of the X-ray tube assembly 1 to the uppermost side and allow them to enter the gas collection and analysis device. The rotation or shaking mechanism can be provided, for example, by a four-axis stage. The oil reservoir 4 is preferably transparent, allowing visibility of its interior. The oil reservoir 4 contains a first insulating oil, but does not completely fill its internal space. A first space within the internal space is filled with the first insulating oil, while a second space above the first space is an unfilled space that can accommodate gas. The first insulating oil and the second insulating oil inside the X-ray tube assembly 1 are connected via a first valve 3. When the first valve 3 is opened, if the second insulating oil is under positive pressure, some of the second insulating oil will enter the oil storage tank 4 and mix with the first insulating oil. Furthermore, by rotating and shaking the X-ray tube assembly 1 using the movable worktable 12, gas in the second insulating oil is forced into the oil storage tank 4 and released into the second space. Thus, the gas composition detection device 11, which is connected to the second space, can detect the composition of the gas in the second space. A second valve 8 is installed between the second space of the oil storage tank 4 and the gas composition detection device 11. Only when the second valve 8 is opened will the gas in the second space enter the gas composition detection device 11.

[0032] In one exemplary embodiment, see further. Figure 1The X-ray tube assembly gas collection and analysis device may also include a first pump 2. A first insulating oil and a second insulating oil are connected through a first passage and a second passage. The first pump 2 and a first valve 3 are located in the first passage. With the first valve 3 open, the first pump 2 circulates the first and second insulating oils through the first and second passages (e.g., as indicated by the arrows in the diagram). This circulation helps to further carry the gas in the second insulating oil into the first insulating oil and release it into the second space. The second and first insulating oils can be selected to have the same composition. This selection has two advantages: first, the gas composition will not change due to environmental changes after reaching the first insulating oil, affecting the detection results; second, the insulating oil composition within the X-ray tube assembly 1 will not change after the first and second insulating oils circulate. The X-ray tube assembly gas collection and analysis device may also include a second pump 9, which is connected to both the second space and the gas composition detection device 11. If the gas pressure is insufficient to reach the gas composition detection device 11, the second valve 8 is opened, and the second pump 9 is used to pump the gas from the second space to the gas composition detection device 11. Furthermore, a third valve 5 can be installed, which is connected to both the second space and the atmosphere. For example, the third valve 5 can be positioned such that one end is connected to the atmosphere, and the other end is connected to the second space via the second pump 9 and the second valve 8. After the detection is completed, the third valve 5 and the second valve 8 can be opened, and the second pump 9 can be used to discharge the gas in the second space to the atmosphere, allowing the entire X-ray tube assembly gas collection and analysis device to perform the next detection.

[0033] In one exemplary example, see [link to example]. Figure 1 The X-ray tube assembly gas collection and analysis device also includes a gas pressure detection device 10, which is connected to the second space. Without starting the second pump 9 or opening the second valve 9, the gas pressure detection device 10 can detect the pressure of the gas in the second space. This pressure value can be used to determine the amount of gas generated inside the X-ray tube assembly.

[0034] In one exemplary example, see [link to example]. Figure 1 The X-ray tube assembly gas collection and analysis device also includes a third pump 7 and a fourth valve 6. The third pump 7 can be a vacuum pump, and it is connected to the second space via the fourth valve 6. Before gas collection and analysis, the second valve 8 is closed and the fourth valve 6 is opened. The third pump 7 is then used to extract the gas from the second space. Creating a vacuum is optimal, as this minimizes residual gas in the second space and reduces interference with the gas inside the X-ray tube assembly. However, creating a vacuum is not always necessary; the remaining gas has the same composition as the atmosphere, and its impact on gas composition analysis can be considered beforehand.

[0035] In one exemplary embodiment, because the X-ray tube assembly generates a large amount of heat during operation, residual gas may be released from some components that are not thoroughly degassed. Furthermore, during the high-speed bombardment of the anode target by electrons emitted from the cathode, over 90% of the energy is dissipated as heat. Therefore, the temperature of the anode focal track can reach approximately 2500K. If the tube shell ruptures for some reason during exposure, the insulating oil inside the tube can enter the tube and reach the high-temperature anode surface. At this point, the insulating oil may decompose, generating a large amount of gas, which could trigger the pressure switch of the X-ray tube assembly. Investigating such X-ray tube assemblies poses a certain risk due to the high positive pressure inside the tube. This embodiment reduces the risk and further collects and analyzes the gas inside the tube, facilitating the investigation of the cause of X-ray tube assembly failure.

[0036] See Figure 1 The X-ray tube assembly gas collection and analysis device includes a vacuum system, a drive motor, a pressure relief system, a gas collection system, and a gas composition analysis system. It can release, detect, and analyze the gas pressure inside the X-ray tube assembly and has the advantages of simple operation and high safety.

[0037] See also Figure 1 The X-ray tube assembly 1 under test is mounted on a servo motor-driven four-axis worktable 12, and is connected to the X-ray tube assembly gas collection and analysis device through quick-connect couplings for oil inlet and outlet. The vacuum oil pump includes a first pump 2 and a second pump 9, the vacuum mechanical pump group includes a third pump 7, and the oil circuit valves include a first valve 3, a third valve 5, a fourth valve 6, and a second valve 8 (all of which are closed by default). The visualized vacuum oil tank 4 contains insulating oil with the same composition as the X-ray tube assembly.

[0038] The operating steps of the device are as follows:

[0039] 1. Before measurement, connect the two oil pipes of the device, open the fourth valve 6 and start the third pump 7 of the mechanical pump group to evacuate the inside of the visible oil tank 4 into a vacuum, and then close the fourth valve 6.

[0040] 2. The X-ray tube assembly 1 to be tested is mounted on the four-axis movable worktable 12 using a fixing fixture and screws.

[0041] 3. Open the first valve 3, the second valve 8 and the second pump 9 simultaneously start the four-axis movable worktable 12, rotate the gas inside the X-ray tube assembly at different angles and place the gas at the highest relative position so that the gas inside the X-ray tube assembly can be extracted by the second pump 9.

[0042] 4. The extracted gas is stored in a gas pressure detection device 10 with pressure detection and storage functions, and gas pressure analysis is performed.

[0043] 5. A specific amount of gas enters the gas composition detection device 11 for composition analysis.

[0044] 6. Close the second valve 8 and the second pump 9, and open the third valve 5 to achieve atmospheric pressure balance between the inside and outside of the device.

[0045] In this embodiment, residual gas analysis and investigation are performed on an X-ray tube assembly under positive pressure. The gas inside the X-ray tube assembly is collected and analyzed non-destructively and effectively while ensuring safety. This device solves the problem that during the disassembly and investigation of X-ray tube assemblies, it is impossible to collect and analyze the gas inside at the time of failure, and it is impossible to know the internal state of the tube assembly at the time of failure, or the gas release status of components during operation. This device allows for a more in-depth investigation into the cause of X-ray tube assembly failure. This device has advantages such as simple structure, ease of assembly; simple operation and high degree of intelligence in the measurement process; and accurate measurement results. There is no secondary pollution or absorption of the collected gas, thus ensuring the accuracy of the gas analysis results, while the pressure release mechanism ensures the safety of the investigators.

[0046] In this disclosure, directional terms such as "up," "down," "left," and "right" are merely illustrative relative directions and do not represent the direction of gravity in use. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not imply sequentiality or importance. Additionally, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure. Furthermore, the nouns and pronouns relating to people in this disclosure are not limited to specific genders.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0048] To keep the drawings concise, each drawing only schematically shows the parts relevant to this disclosure, and they do not represent the actual structure of the product. Furthermore, to facilitate understanding, in some drawings, components with the same structure or function are shown only schematically, or only one is labeled.

[0049] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A gas collection and analysis device for an X-ray tube assembly, used for collecting and analyzing gas within an X-ray tube assembly, characterized in that, include: A movable worktable for placing the X-ray tube assembly; The oil storage tank has a first space inside which is filled with a first insulating oil, and the first insulating oil and the second insulating oil inside the X-ray tube assembly are connected through a first valve. A gas composition detection device is connected to the second space of the oil storage tank via a second valve, and is used to detect the composition of the gas in the second space; The first space and the second space are connected.

2. The X-ray tube assembly gas collection and analysis device according to claim 1, characterized in that: The movable worktable allows the X-ray tube assembly to rotate and / or wiggle.

3. The X-ray tube assembly gas collection and analysis device according to claim 1, characterized in that: It also includes a first pump, the first insulating oil and the second insulating oil are connected through a first passage and a second passage, the first pump and the first valve are located in the first passage; in response to the first valve being open, the first pump causes the first insulating oil and the second insulating oil to circulate through the first passage and the second passage.

4. The X-ray tube assembly gas collection and analysis device according to claim 1, characterized in that: It also includes a second pump, which is connected to both the second space and the gas composition detection device; in response to the second valve being in the open state, the second pump is used to pump the gas in the second space to the gas composition detection device.

5. The X-ray tube assembly gas collection and analysis device according to claim 4, characterized in that: It also includes a gas pressure detection device, which is connected to the second space and is used to detect the pressure of the gas in the second space.

6. The X-ray tube assembly gas collection and analysis device according to claim 4, characterized in that, It also includes a third valve, which is connected to the second space and the atmosphere respectively.

7. The X-ray tube assembly gas collection and analysis device according to claim 6, characterized in that, One end of the third valve is connected to the atmosphere, and the other end is connected to the second space through the second pump and the second valve; in response to the opening of the third valve and the second valve, the second pump is used to pump the gas in the second space to the atmosphere.

8. The X-ray tube assembly gas collection and analysis device according to claim 1, characterized in that, It also includes a third pump and a fourth valve, the third pump being connected to the second space via the fourth valve; in response to the second valve being closed, the fourth valve being opened, and the third pump being able to extract gas from the second space.

9. The X-ray tube assembly gas collection and analysis device according to claim 2, characterized in that, The movable worktable is a four-axis worktable.

10. The X-ray tube assembly gas collection and analysis device according to claim 1, wherein the second insulating oil and the first insulating oil have the same composition.

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