A monitoring system for the withstand voltage value of the aging oil of an X-ray tube and its control method

Abstract

The present invention discloses a monitoring system for the withstand voltage value of the ball tube aging oil and its control method. In this system, the outlet of the storage oil tank is connected to the first oil pump; the inlet of the oil filtering pipeline and the inlet of the aging pipeline are both connected to the first oil pump; the outlets of the oil filtering pipeline and the aging pipeline are both connected to the inlet of the storage oil tank through filters; the withstand voltage detection pipeline is arranged in the pipeline between the outlet of the oil filtering pipeline and the filter and in the pipeline between the outlet of the aging pipeline and the filter; the controller is electrically connected to the withstand voltage detection pipeline. When the real-time withstand voltage value of the oil filtering pipeline is within the first preset withstand voltage value range, it controls the oil filtering pipeline to close and controls the aging pipeline to inject oil into the aging oil tank; it is also used to control the aging pipeline to close and control the oil filtering pipeline to filter the oil in the storage oil tank when the real-time withstand voltage value of the aging pipeline is less than the second preset withstand voltage value. In this way, it can monitor the withstand voltage value in real time and avoid dangers such as tooling ignition.

Description

Technical Field

[0001] The present invention relates to the technical field of tube aging, and particularly to a system for monitoring the withstand voltage value of the oil used in tube aging and its control method. Background Art

[0002] During the aging process of the tube core, extremely high voltages close to ±100 KV are applied across the anode and cathode. The tube core and the aging tooling are completely placed inside an aging oil tank filled with oil.

[0003] During the production process, the oil tank is frequently filled with and emptied of oil. During this period, the insulating oil is inevitably exposed to the air environment, thus coming into contact with moisture and fine impurities in the air. Once water vapor or impurities are mixed into the insulating oil and not effectively filtered, it will inevitably lead to a significant reduction in its insulating performance. From the perspective of the tooling, this situation is very likely to cause discharge and sparking between the high voltage of the anode and cathode and the tooling; when there are metal impurities inside the insulating oil, the anode glass is at risk of being punctured. At the equipment level, the high current and high voltage generated by the discharge and sparking will cause damaging impacts on the equipment.

[0004] Therefore, there is an urgent need to provide a system that can monitor the withstand voltage value of the oil in real time to prevent problems such as tooling sparking. Summary of the Invention

[0005] Embodiments of the present invention provide a system for monitoring the withstand voltage value of the oil used in tube aging and its control method to monitor the withstand voltage value of the oil in the system in real time and avoid risks such as tooling sparking.

[0006] In a first aspect, embodiments of the present invention provide a system for monitoring the withstand voltage value of the oil used in tube aging, including: an oil storage tank, a first oil pump, a filter, an oil filtering pipeline, a withstand voltage detection pipeline, an aging pipeline, and a controller;

[0007] The outlet of the oil storage tank is connected to the first oil pump; the inlet of the oil filtering pipeline and the inlet of the aging pipeline are both connected to the first oil pump; the outlet of the oil filtering pipeline and the outlet of the aging pipeline are both connected to the inlet of the oil storage tank through the filter; the withstand voltage detection pipeline is arranged in the pipeline between the outlet of the oil filtering pipeline and the filter and in the pipeline between the outlet of the aging pipeline and the filter;

[0008] The controller is electrically connected to the pressure-resistant detection pipeline, and is used to control the filter pipeline to close and control the aging pipeline to inject oil into the aging oil tank when the real-time pressure resistance value of the filter pipeline is within the first preset pressure resistance value range; it is also used to control the aging pipeline to close and control the filter pipeline to filter the oil in the storage tank when the real-time pressure resistance value of the aging pipeline is less than the second preset pressure resistance value.

[0009] Optionally, the aging pipeline includes: a first valve, a second valve, an aging oil tank, and a second oil pump;

[0010] The first valve is arranged in the pipeline between the first oil pump and the aging oil tank; the second valve is arranged in the pipeline between the second oil pump and the aging oil tank; the second oil pump is connected to the filter;

[0011] The controller is electrically connected to the first valve and the second valve respectively, and is used to control the first valve and the second valve to open when the real-time pressure resistance value of the filter pipeline is within the first preset pressure resistance value range.

[0012] Optionally, the aging pipeline further includes: a liquid level gauge;

[0013] The liquid level gauge is arranged outside the aging oil tank and is used to detect the real-time liquid level of the aging oil tank;

[0014] The controller is also electrically connected to the liquid level gauge and is used to control the opening degree of the first valve according to the real-time liquid level and the preset liquid level.

[0015] Optionally, the moisture removal sub-pipeline includes a resistance gauge, a vacuum pump, and a third valve; the resistance gauge is connected to the vacuum pump, and the third valve is arranged in the pipeline between the resistance gauge and the storage tank;

[0016] The oil filtering sub-pipeline includes a fourth valve; the fourth valve is arranged in the pipeline between the first oil pump and the filter;

[0017] The controller is electrically connected to the third valve and the fourth valve respectively, and is used to control the third valve and the fourth valve to open when the real-time pressure resistance value of the aging pipeline is less than the second preset pressure resistance value.

[0018] Optionally, the pressure-resistant detection pipeline includes: a fifth valve, a flow meter, and a pressure-resistant tester;

[0019] The flow meter is connected to the pressure-resistant tester, and the fifth valve is arranged in the pipeline between the flow meter and the filter;

[0020] The controller is electrically connected to the fifth valve and is used to control the fifth valve to open.

[0021] Optionally, a heater is included in the oil storage tank.

[0022] Optionally, the first valve includes a first electronic expansion valve; the second valve includes a second electronic expansion valve.

[0023] In a second aspect, an embodiment of the present invention further provides a control method for a monitoring system of the pressure resistance value of the oil for tube aging, which is applied to the monitoring system of the pressure resistance value of the oil for tube aging according to any one of the first aspects, and includes:

[0024] When the real-time pressure resistance value of the oil filtering pipeline is within the first preset pressure resistance value range, output a first control signal to control the oil filtering pipeline to close, and control the aging pipeline to inject oil into the aging oil tank;

[0025] When the real-time pressure resistance value of the aging pipeline is less than a second preset pressure resistance value, output a second control signal to control the aging pipeline to close, and control the oil filtering pipeline to filter the oil in the oil storage tank.

[0026] Optionally, the aging pipeline includes: a first valve, a second valve, an aging oil tank and a second oil pump; the first valve is arranged in the pipeline between the first oil pump and the aging oil tank; the second valve is arranged in the pipeline between the second oil pump and the aging oil tank; the second oil pump is connected to the filter;

[0027] When the real-time pressure resistance value of the oil filtering pipeline is within the first preset pressure resistance value range, output a first control signal to control the oil filtering pipeline to close, and control the aging pipeline to inject oil into the aging oil tank, including:

[0028] Obtain the real-time pressure resistance value of the oil filtering pipeline;

[0029] When the real-time pressure resistance value of the oil filtering pipeline is within the first preset pressure resistance value range, the first control signal controls the oil filtering pipeline to close, and controls the first valve and the second valve to open, so that the aging pipeline injects oil into the aging oil tank.

[0030] Optionally, the oil filtering pipeline includes: a dehumidification sub-pipeline and an oil filtering sub-pipeline; the dehumidification sub-pipeline includes a resistance gauge, a vacuum pump and a third valve; the resistance gauge is connected to the vacuum pump, and the third valve is arranged in the pipeline between the resistance gauge and the oil storage tank; the oil filtering sub-pipeline includes a fourth valve; the fourth valve is arranged in the pipeline between the first oil pump and the filter;

[0031] When the real-time pressure resistance value of the aging pipeline is less than a second preset pressure resistance value, output a second control signal to control the aging pipeline to close, and control the oil filtering pipeline to filter the oil in the oil storage tank, including:

[0032] Obtain the real-time pressure resistance value of the aging pipeline;

[0033] When the real-time pressure resistance value of the aging pipeline is at the second preset pressure resistance value, output a second control signal to control the closing of the aging pipeline, and control the opening of the third valve and the fourth valve, so that the oil filtering pipeline filters the oil in the storage tank.

[0034] The technical solution provided by the embodiment of the present invention can realize the filtration of oil through the setting of the oil filtering pipeline, and can realize the oil injection into the aging oil tank through the setting of the aging pipeline. The pressure resistance detection pipeline is arranged in the pipeline between the outlet of the oil filtering pipeline and the filter and in the pipeline between the outlet of the aging pipeline and the filter. In this way, when the oil filtering pipeline is working, the pressure resistance detection pipeline can detect the pressure resistance value of the oil filtering pipeline in real time, and when the aging pipeline is working, the pressure resistance detection pipeline can detect the pressure resistance value of the aging pipeline in real time, that is, the pressure resistance value of the oil can be detected before and during aging. The controller is electrically connected to the pressure resistance detection pipeline, and is used to control the closing of the oil filtering pipeline and control the aging pipeline to inject oil into the aging oil tank when the real-time pressure resistance value of the oil filtering pipeline is within the first preset pressure resistance value range; it is also used to control the closing of the aging pipeline and control the oil filtering pipeline to filter the oil in the storage tank when the real-time pressure resistance value of the aging pipeline is less than the second preset pressure resistance value. Furthermore, the real-time monitoring of the pressure resistance value can be realized during the working process of the aging pipeline and the real-time monitoring of the pressure resistance value can be realized during the working process of the oil filtering pipeline, which is beneficial to eliminating the risks of tooling ignition and tube core rupture induced by the decrease of the pressure resistance value of the insulating oil, and provides a solid, reliable and effective guarantee for the ignition sampling inside the tube core. Description of the Drawings

[0035] Figure 1 It is a schematic structural diagram of a ball tube aging oil pressure resistance value monitoring system provided by an embodiment of the present invention;

[0036] Figure 2 It is a schematic flow chart of the control method of the first ball tube aging oil pressure resistance value monitoring system provided by an embodiment of the present invention;

[0037] Figure 3 It is a schematic flow chart of the control method of the second ball tube aging oil pressure resistance value monitoring system provided by an embodiment of the present invention. Detailed Embodiment

[0038] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only part of the structure related to the present invention is shown in the drawings rather than all of it.

[0039] Figure 1 This is a schematic structural diagram of a tube aging oil pressure resistance value monitoring system provided by an embodiment of the present invention. As Figure 1 shown, the tube aging oil pressure resistance value monitoring system includes an oil storage tank 10, a first oil pump 20, a filter 30, an oil filtering pipeline 40, a pressure resistance detection pipeline 50, an aging pipeline 60, and a controller (not shown in the figure); the outlet of the oil storage tank 10 is connected to the first oil pump 20; the inlet of the oil filtering pipeline 40 and the inlet of the aging pipeline 60 are both connected to the first oil pump 20; the outlet of the oil filtering pipeline 40 and the outlet of the aging pipeline 60 are both connected to the inlet of the oil storage tank 10 through the filter 30; the pressure resistance detection pipeline 50 is arranged in the pipeline between the outlet of the oil filtering pipeline 40 and the filter 30 and in the pipeline between the outlet of the aging pipeline 60 and the filter 30; the controller is electrically connected to the pressure resistance detection pipeline 50, and is used for controlling the oil filtering pipeline 40 to close and controlling the aging pipeline 60 to inject oil into the aging oil tank 601 when the real-time pressure resistance value of the oil filtering pipeline 40 is within a first preset pressure resistance value range; and is further used for controlling the aging pipeline 60 to close and controlling the oil filtering pipeline 40 to filter the oil in the oil storage tank 10 when the real-time pressure resistance value of the aging pipeline 60 is less than a second preset pressure resistance value.

[0040] Specifically, the oil storage tank 10 can be a sealed oil storage tank to prevent the insulating oil inside the oil storage tank from being polluted. The insulating oil inside the oil storage tank 10 needs to be recycled. The insulating oil passes through the oil filtering pipeline 40 and the filter 30 in sequence through the first oil pump 20 and then circulates back to the oil storage tank 10. This loop can remove solid impurities in the insulating oil.

[0041] Specifically, the pressure-resistant detection pipeline 50 is arranged in the pipeline between the outlet of the oil filtering pipeline 40 and the filter 30. In this way, during the process of filtering the insulating oil in the storage oil tank 10, the pressure resistance of the insulating oil can be detected through the pressure-resistant detection pipeline 50. That is to say, the pressure-resistant detection pipeline 50 can detect the pressure resistance value of the oil in the oil filtering pipeline 40 in real time. The controller is electrically connected to the pressure-resistant detection pipeline 50 and is used to control the oil filtering pipeline 40 to close when the real-time pressure resistance value of the oil filtering pipeline 40 is within the first preset pressure resistance value range, and to control the aging pipeline 60 to inject oil into the aging oil tank 601. That is, at this time, the insulating oil in the storage oil tank 10 is injected into the aging oil tank 601 through the first oil pump 20 via the aging pipeline 60. After aging is completed, the insulating oil in the aging oil tank 601 passes through the filter 30 to the storage oil tank 10. As a comparative example, in the prior art, the insulating oil in the aging oil tank is filtered by an oil filter. When filtering the oil, it is necessary to pump the insulating oil inside the aging oil tank into an oil barrel, and then connect it to the oil filter through a hose to filter the oil. This step will increase the risk of oil spillage and contact with the skin during implementation, and it is not convenient to operate, wasting labor costs. In addition, in the prior art, before aging, it is usually necessary to manually take a sample inside the oil tank to test the pressure resistance value of the insulating oil. Since the amount of oil sampled cannot be quantified, it will affect the measurement of the pressure resistance value.

[0042] Furthermore, the pressure-resistant detection pipeline 50 is also arranged in the pipeline between the outlet of the aging pipeline 60 and the filter 30. In this way, during the aging process, the pressure-resistant detection pipeline 50 can detect the pressure resistance value of the oil in the aging pipeline in real time. When the real-time pressure resistance value of the aging pipeline 60 is less than the second preset pressure resistance value, the aging pipeline 60 is controlled to close, and the oil filtering pipeline 40 is controlled to filter the oil in the storage oil tank 10. In this way, unnecessary high-voltage discharge damage to the equipment can be avoided. It should be noted that during the process of the oil filtering pipeline 40 filtering the oil in the storage oil tank 10, the pressure resistance value of the insulating oil is monitored in real time until the pressure resistance value of the insulating oil meets the standard and then the core aging is carried out again. As a comparative example, in the prior art, during the aging process, the pressure resistance value of the insulating oil cannot be monitored, and when the pressure resistance value of the oil is lower than the specified lower limit value, the oil cannot be cyclically filtered in real time, which is likely to cause equipment damage.

[0043] It can be understood that the first preset pressure resistance value range can be understood as the pressure resistance value range that can inject oil into the aging oil tank. The second preset pressure resistance value can be understood as the pressure resistance threshold of the oil during the aging process. When the real-time pressure resistance value during the aging process is lower than the second preset pressure resistance value, the aging pipeline is closed and the oil filtering pipeline is opened, so as to avoid unnecessary high-voltage discharge damage to the equipment.

[0044] Exemplarily, the filter can adopt a bipolar filter, which has a higher filtering efficiency and a better filtering effect, and is beneficial to improving the filtering effect of solid impurities in the insulating oil.

[0045] The oil pressure withstand value monitoring system for the tube aging oil provided by the embodiment of the present invention can filter the oil through the oil filter pipeline, and can fill the aging oil tank through the aging pipeline. The pressure withstand detection pipeline is arranged in the pipeline between the outlet of the oil filter pipeline and the filter, and in the pipeline between the outlet of the aging pipeline and the filter. In this way, when the oil filter pipeline is working, the pressure withstand detection pipeline can detect the pressure withstand value of the oil filter pipeline in real time. When the aging pipeline is working, the pressure withstand detection pipeline can detect the pressure withstand value of the aging pipeline in real time, that is, the oil pressure withstand value detection can be realized before and during the aging process. When the real-time pressure withstand value of the oil filter pipeline is within the first preset pressure withstand value range, the controller controls the oil filter pipeline to close and controls the aging pipeline to fill the aging oil tank; when the real-time pressure withstand value of the aging pipeline is less than the second preset pressure withstand value, the controller controls the aging pipeline to close and controls the oil filter pipeline to filter the oil in the storage tank. Furthermore, the real-time monitoring of the pressure withstand value can be realized during the working process of the aging pipeline and the real-time monitoring of the pressure withstand value can be realized during the working process of the oil filter pipeline, which is beneficial to eliminating the risks of tooling ignition and tube core rupture induced by the decrease of the insulating oil pressure withstand value, and provides a solid, reliable and effective guarantee for the ignition sampling inside the tube core.

[0046] Optionally, continue to refer to Figure 1 , the aging pipeline includes: a first valve 602, a second valve 603, an aging oil tank 601 and a second oil pump 604; the first valve 602 is arranged in the pipeline between the first oil pump 20 and the aging oil tank 601; the second valve 603 is arranged in the pipeline between the second oil pump 604 and the aging oil tank 601; the second oil pump 604 is connected to the filter 30; the controller is electrically connected to the first valve 602 and the second valve 603 respectively, and is used to control the first valve 602 and the second valve 603 to open when the real-time pressure withstand value of the oil filter pipeline 40 is within the first preset pressure withstand value range.

[0047] Specifically, when the real-time pressure withstand value of the oil filter pipeline 40 is within the first preset pressure withstand value range, the aging pipeline 60 is opened. During the aging process, the insulating oil in the storage tank 10 passes through the first oil pump 20 and the first valve 602 to the aging oil tank 601 to realize oil filling, and the insulating oil in the aging oil tank 601 passes through the second valve 603, the second oil pump 604 and the filter 30 to the storage tank 10. During this process, the pressure withstand detection pipeline 50 can detect the pressure withstand value of the oil in the aging pipeline 60 in real time.

[0048] Optionally, continue to refer to Figure 1, the aging pipeline 60 further includes: a liquid level gauge 605; the liquid level gauge 605 is arranged outside the aging oil tank 601 and is used to detect the real-time liquid level of the aging oil tank 601; the controller is also electrically connected to the liquid level gauge 605 and is used to control the opening degree of the first valve 602 according to the real-time liquid level and the preset liquid level.

[0049] Specifically, during the aging process, the insulating oil in the storage tank 10 flows to the aging oil tank through the first oil pump 20 and the first valve 602 to achieve oil injection. At this time, the liquid level in the aging oil tank 601 will gradually rise. By setting the liquid level gauge 605, the liquid level of the aging oil tank can be detected in real time, preventing the insulating oil in the aging oil tank from being too little to meet the insulation protection of the insulating oil for the anode and cathode high voltage and the die, and also preventing the insulating oil from being too much and causing the insulating oil to overflow from the inside of the aging oil tank.

[0050] Specifically, the controller is also electrically connected to the liquid level gauge 605. Thus, when the real-time liquid level in the aging oil tank is low, the controller can control the opening degree of the first valve 602 to become larger to quickly reach the preset liquid level; when the real-time liquid level in the aging oil tank is close to the preset liquid level, the controller can control the opening degree of the first valve 602 to become smaller or even closed to prevent the insulating oil from overflowing from the inside of the aging oil tank. Thus, compared with manually injecting oil into the aging oil tank, it is beneficial to automatically monitor the liquid level in the aging oil tank and meet the quantitative requirements in terms of process and safety.

[0051] Optionally, continue to refer to Figure 1 , the oil filtering pipeline 40 includes: a dehumidifying sub-pipeline 401 and an oil filtering sub-pipeline 402; the dehumidifying sub-pipeline 401 includes a resistance gauge 4011, a vacuum pump 4012 and a third valve 4013; the resistance gauge 4011 is connected to the vacuum pump 4012, and the third valve 4013 is arranged in the pipeline between the resistance gauge 4011 and the storage tank 10; the oil filtering sub-pipeline 402 includes a fourth valve 4021; the fourth valve 4021 is arranged in the pipeline between the first oil pump 20 and the filter 30; the controller is electrically connected to the third valve 4013 and the fourth valve 4021 respectively and is used to control the third valve 4013 and the fourth valve 4021 to open when the real-time withstand voltage value of the aging pipeline 60 is less than the second preset withstand voltage value.

[0052] Specifically, continue to refer to Figure 1 , the storage tank 10 includes a heater 101. The heater 101 will generate water vapor during the process of heating the insulating oil in the storage tank 10. By setting the dehumidifying sub-pipeline 401, the water vapor in the storage tank 10 can be removed. In addition, the water vapor situation in the storage tank 10 can also be detected through the resistance gauge 4011.

[0053] It should be noted that the controller can also be electrically connected to the resistance gauge 4011 and the third valve 4013 respectively, so as to control the opening degree of the third valve 4013 according to the water vapor value detected by the resistance gauge 4011, thereby ensuring that the water vapor in the oil storage tank 10 meets the preset standard.

[0054] Optionally, continue to refer to Figure 1 , the pressure resistance detection pipeline includes: a fifth valve 501, a flow meter 502 and a pressure resistance tester 503; the flow meter 502 is connected to the pressure resistance tester 503, and the fifth valve 501 is arranged in the pipeline between the flow meter 502 and the filter 30; the controller is electrically connected to the fifth valve 501 for controlling the opening of the fifth valve 501.

[0055] Specifically, the controller controls the fifth valve 501 to open. In this way, during the operation of the oil filtering pipeline 40, the real-time detection of the pressure resistance value of the oil fluid can be realized, and during the operation of the aging pipeline 60, the real-time detection of the pressure resistance value of the oil fluid can also be realized. Furthermore, the pressure resistance value of the insulating oil fluid can be detected in real time before and during the system aging, so as to realize automatic oil filtering and automatic oil injection according to the pressure resistance value, saving labor costs, and the whole process is oil-free and does not touch the ground.

[0056] Optionally, continue to refer to 1. The first valve 602 includes a first electronic expansion valve; the second valve 603 includes a second electronic expansion valve, so as to automatically adjust the flow rate and pressure of the insulating oil fluid, so as to accurately control the insulating oil fluid in the aging fuel tank.

[0057] In summary, for the tube aging oil fluid pressure resistance value monitoring system provided by the embodiment of the present invention, the pressure resistance detection pipeline is arranged in the pipeline between the outlet of the oil filtering pipeline and the filter and in the pipeline between the outlet of the aging pipeline and the filter. In this way, the pressure resistance value of the insulating oil fluid can be detected in real time before and during the system aging. When the real-time pressure resistance value of the oil filtering pipeline is within the first preset pressure resistance value range, the oil filtering pipeline is controlled to close, and the aging pipeline is controlled to inject oil into the aging fuel tank; when the real-time pressure resistance value of the aging pipeline is less than the second preset pressure resistance value, the aging pipeline is controlled to close, and the oil filtering pipeline is controlled to filter the oil fluid in the oil storage tank. Furthermore, the real-time monitoring of the pressure resistance value can be realized during the operation of the aging pipeline and the real-time monitoring of the pressure resistance value can be realized during the operation of the oil filtering pipeline, which is beneficial to eliminating the risks of tooling ignition and tube core rupture induced by the decrease of the pressure resistance value of the insulating oil, and provides a solid, reliable and effective guarantee for the ignition sampling inside the tube core.

[0058] Based on the same inventive concept, the embodiment of the present invention also provides a control method for a tube aging oil fluid pressure resistance value monitoring system, Figure 2 is a schematic flow chart of the first control method for the tube aging oil fluid pressure resistance value monitoring system provided by the embodiment of the present invention, as Figure 2As shown, the control method of the tube aging oil pressure resistance value monitoring system includes:

[0059] S101. When the real-time pressure resistance value of the oil filtering pipeline is within the first preset pressure resistance value range, output a first control signal to control the closing of the oil filtering pipeline, and control the aging pipeline to inject oil into the aging oil tank.

[0060] Specifically, continue to refer to Figure 1 , when the oil filtering pipeline 40 is working, the pressure resistance detection pipeline 50 detects the real-time pressure resistance value of the insulating oil in the oil filtering pipeline 40 in real time. The controller is electrically connected to the pressure resistance detection pipeline 50. When the real-time pressure resistance value of the oil filtering pipeline is within the first preset pressure resistance value range, the controller outputs a first control signal to control the closing of the oil filtering pipeline 40, and controls the aging pipeline 60 to inject oil into the aging oil tank 601. That is, at this time, the insulating oil in the storage oil tank 10 passes through the first oil pump 20 and injects oil into the aging oil tank 601 through the aging pipeline 60. After aging is completed, the insulating oil in the aging oil tank 601 passes through the filter 30 to the storage oil tank 10.

[0061] S102. When the real-time pressure resistance value of the aging pipeline is less than the second preset pressure resistance value, output a second control signal to control the closing of the aging pipeline, and control the oil filtering pipeline to filter the oil in the storage oil tank.

[0062] Specifically, continue to refer to Figure 1 , the pressure resistance detection pipeline 50 is also arranged in the pipeline between the outlet of the aging pipeline 60 and the filter 30. In this way, during the aging process, the pressure resistance detection pipeline 50 can detect the real-time pressure resistance value of the oil in the aging pipeline 60 in real time. When the real-time pressure resistance value of the aging pipeline 60 is less than the second preset pressure resistance value, control the aging pipeline 60 to close, and control the oil filtering pipeline 40 to filter the oil in the storage oil tank 10, so as to avoid unnecessary high-voltage discharge from damaging the equipment. It should be noted that during the process of the oil filtering pipeline 40 filtering the oil in the storage oil tank 10, the pressure resistance value of the insulating oil is detected in real time until the pressure resistance value of the insulating oil meets the standard and then the tube core aging is carried out again.

[0063] The control method of the tube aging oil pressure resistance value monitoring system provided by the embodiment of the present invention outputs a first control signal to control the filter oil pipeline to close and controls the aging pipeline to inject oil into the aging oil tank when the real-time pressure resistance value of the filter oil pipeline is within the first preset pressure resistance value range; when the real-time pressure resistance value of the aging pipeline is less than the second preset pressure resistance value, a second control signal is output to control the aging pipeline to close and control the filter oil pipeline to filter the oil in the storage tank. In this way, automatic oil filtering and automatic oil injection can be realized, and the pressure resistance value of the insulating oil can be detected in real time before and during aging. In this way, the risks of tooling ignition and tube core rupture induced by the decrease of the pressure resistance value of the insulating oil can be effectively eliminated, providing a solid, reliable and effective guarantee for the ignition sampling inside the tube core.

[0064] Optionally, Figure 3 It is a schematic flowchart of the control method of the second tube aging oil pressure resistance value monitoring system provided by the embodiment of the present invention. Figure 3 On the basis of the above embodiment, the operations of outputting a first control signal to control the filter oil pipeline to close and controlling the aging pipeline to inject oil into the aging oil tank when the real-time pressure resistance value of the filter oil pipeline is within the first preset pressure resistance value range and outputting a second control signal to control the aging pipeline to close and controlling the filter oil pipeline to filter the oil in the storage tank when the real-time pressure resistance value of the aging pipeline is less than the second preset pressure resistance value are elaborated in detail, as Figure 3 shown, the control method includes:

[0065] S201. Obtain the real-time pressure resistance value of the filter oil pipeline.

[0066] Specifically, continue to refer to Figure 1 , when the filter oil pipeline 40 filters oil, the real-time pressure resistance value of the filter oil pipeline 40 is obtained through the pressure resistance detection pipeline 50.

[0067] S202. When the real-time pressure resistance value of the filter oil pipeline is within the first preset pressure resistance value range, the first control signal controls the filter oil pipeline to close and controls the first valve and the second valve to open, so that the aging pipeline injects oil into the aging oil tank.

[0068] Specifically, continue to refer to Figure 1, the first valve 602 is arranged in the pipeline between the first oil pump 20 and the aging tank 601; the second valve 603 is arranged in the pipeline between the second oil pump 604 and the aging tank 601. When the real-time withstand voltage value of the oil filtering pipeline 40 is within the first preset withstand voltage value range, the aging pipeline 60 is opened. During the aging process, the insulating oil in the storage tank 10 passes through the first oil pump 20 and the first valve 602 to the aging tank 601 to achieve oil injection, and the insulating oil in the aging tank 601 passes through the second valve 603, the second oil pump 604 and the filter 30 to the storage tank 10. During this process, the withstand voltage detection pipeline 50 can detect the real-time withstand voltage value of the oil in the aging pipeline 60.

[0069] S203. Obtain the real-time withstand voltage value of the aging pipeline.

[0070] Specifically, continue to refer to Figure 1 , when filtering oil in the aging pipeline 60, obtain the real-time withstand voltage value of the aging pipeline 60 through the withstand voltage detection pipeline 50.

[0071] S204. When the real-time withstand voltage value of the aging pipeline is at the second preset withstand voltage value, output a second control signal to control the aging pipeline to close, and control the third valve and the fourth valve to open, so that the oil filtering pipeline filters the oil in the storage tank.

[0072] Specifically, continue to refer to Figure 1 , the moisture removal sub-pipeline 401 includes a resistance gauge 4011, a vacuum pump 4012 and a third valve 4013; the resistance gauge 4011 is connected to the vacuum pump 4012, and the third valve 4013 is arranged in the pipeline between the resistance gauge 4011 and the storage tank 10; the oil filtering sub-pipeline 402 includes a fourth valve 4021; the fourth valve 4021 is arranged in the pipeline between the first oil pump 20 and the filter 30; the controller is electrically connected to the third valve 4013 and the fourth valve 4021 respectively, and is used to control the third valve 4013 and the fourth valve 4021 to open when the real-time withstand voltage value of the aging pipeline 60 is less than the second preset withstand voltage value, so that the oil filtering pipeline 40 filters the oil in the storage tank 10 until the withstand voltage value of the insulating oil in the oil filtering pipeline 40 is within the first preset withstand voltage value range, and then start the aging pipeline 60, and so on in a cycle.

[0073] The control method of the tube aging oil liquid withstand voltage value monitoring system provided by the embodiment of the present invention controls the working states of the valves in the aging pipeline and the oil filtering pipeline through the controller, and then can control the opening or closing of the aging pipeline and the oil filtering pipeline, so that automatic oil filtering and automatic oil injection can be realized, and the operation is convenient.

[0074] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments, combinations with each other, and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments only. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A tube aging oil pressure value monitoring system, characterized in that: include: Oil storage tank, first oil pump, filter, oil filter pipeline, pressure test pipeline, aging pipeline and controller; The outlet of the oil storage tank is connected to the first oil pump; the inlet of the oil filter pipeline and the inlet of the aging pipeline are both connected to the first oil pump; the outlet of the oil filter pipeline and the outlet of the aging pipeline are both connected to the inlet of the oil storage tank through the filter; the pressure detection pipeline is arranged in the pipeline between the outlet of the oil filter pipeline and the filter and in the pipeline between the outlet of the aging pipeline and the filter; The controller is electrically connected to the pressure detection pipeline, and is used to control the oil filter pipeline to close when the real-time pressure resistance value of the oil filter pipeline is within a first preset pressure resistance value range, and to control the aging pipeline to fill the aging oil tank with oil; and is also used to control the aging pipeline to close when the real-time pressure resistance value of the aging pipeline is less than a second preset pressure resistance value, and to control the oil filter pipeline to filter the oil in the oil storage tank.

2. The tube aging oil pressure value monitoring system according to claim 1 is characterized in that: The aged pipeline includes: a first valve, a second valve, an aged oil tank and a second oil pump; The first valve is arranged in the pipeline between the first oil pump and the aged oil tank; the second valve is arranged in the pipeline between the second oil pump and the aged oil tank; the second oil pump is connected to the filter; The controller is electrically connected to the first valve and the second valve respectively, and is used to control the first valve and the second valve to open when the real-time pressure resistance value of the oil filter pipeline is within the first preset pressure resistance value range.

3. The tube aging oil pressure value monitoring system according to claim 2 is characterized in that: The aged pipeline also includes: a liquid level gauge; The liquid level meter is arranged outside the aged oil tank and is used to detect the real-time liquid level of the aged oil tank; The controller is also electrically connected to the liquid level meter and is used to control the opening of the first valve according to the real-time liquid level and the preset liquid level.

4. The tube aging oil pressure value monitoring system according to claim 1 is characterized in that: The oil filter pipeline includes: a water vapor removal sub-pipeline and an oil filter sub-pipeline; The dehumidification sub-pipeline includes a resistance gauge, a vacuum pump and a third valve; the resistance gauge is connected to the vacuum pump, and the third valve is arranged in the pipeline between the resistance gauge and the oil storage tank; The oil filter pipeline includes a fourth valve; the fourth valve is arranged in the pipeline between the first oil pump and the filter; The controller is electrically connected to the third valve and the fourth valve respectively, and is used to control the third valve and the fourth valve to open when the real-time withstand pressure value of the aged pipeline is less than the second preset withstand pressure value.

5. The tube aging oil pressure value monitoring system according to claim 1 is characterized in that: The pressure resistance detection pipeline includes: a fifth valve, a flow meter and a pressure resistance tester; The flow meter is connected to the pressure tester, and the fifth valve is arranged in the pipeline between the flow meter and the filter; The controller is electrically connected to the fifth valve and is used to control the fifth valve to open.

6. The tube aging oil pressure value monitoring system according to claim 1 is characterized in that: The oil storage tank includes a heater therein.

7. The tube aging oil pressure value monitoring system according to claim 2 is characterized in that: The first valve includes a first electronic expansion valve; the second valve includes a second electronic expansion valve.

8. A control method for a tube aging oil pressure monitoring system, applied to the tube aging oil pressure monitoring system according to any one of claims 1 to 7, characterized in that: include: When the real-time withstand pressure value of the oil filter pipeline is within a first preset withstand pressure value range, outputting a first control signal to control the oil filter pipeline to close, and controlling the aging pipeline to fill the aging oil tank with oil; When the real-time withstand pressure value of the aged pipeline is less than the second preset withstand pressure value, a second control signal is output to control the aged pipeline to be closed, and the oil filter pipeline is controlled to filter the oil in the oil storage tank.

9. The control method according to claim 8, characterized in that: The aged pipeline includes: a first valve, a second valve, an aged oil tank and a second oil pump; the first valve is arranged in the pipeline between the first oil pump and the aged oil tank; the second valve is arranged in the pipeline between the second oil pump and the aged oil tank; the second oil pump is connected to the filter; When the real-time withstand pressure value of the oil filter pipeline is within a first preset withstand pressure value range, a first control signal is output to control the oil filter pipeline to close, and the aged pipeline is controlled to fill the aged oil tank with oil, including: Obtaining the real-time withstand pressure value of the oil filter pipeline; When the real-time pressure resistance value of the oil filter pipeline is within a first preset pressure resistance value range, the first control signal controls the oil filter pipeline to close, and controls the first valve and the second valve to open, so that the aging pipeline fills the aging oil tank with oil.

10. The control method according to claim 8, characterized in that: The oil filter pipeline includes: a water vapor removal sub-pipeline and an oil filter sub-pipeline; the water vapor removal sub-pipeline includes a resistance gauge, a vacuum pump and a third valve; the resistance gauge is connected to the vacuum pump, and the third valve is arranged in the pipeline between the resistance gauge and the oil storage tank; the oil filter sub-pipeline includes a fourth valve; the fourth valve is arranged in the pipeline between the first oil pump and the filter; When the real-time withstand pressure value of the aged pipeline is less than the second preset withstand pressure value, a second control signal is output to control the aged pipeline to be closed, and the oil filter pipeline is controlled to filter the oil in the oil storage tank, including: Obtaining the real-time withstand pressure value of the aged pipeline; When the real-time withstand pressure value of the aged pipeline is at a second preset withstand pressure value, a second control signal is output to control the aged pipeline to close, and the third valve and the fourth valve to open, so that the oil filter pipeline filters the oil in the oil storage tank.

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