Transformer oil degassing device, method and equipment for oil-immersed transformer and storage medium

Abstract

The invention relates to a transformer oil degassing device and method for an oil-immersed transformer, computer equipment, a computer readable storage medium and a computer program product. The device comprises a degassing module and a quantification module connected with the degassing module, the degassing module comprises an ultrasonic array and a degassing cylinder, the degassing cylinder comprises an oil inlet, the ultrasonic array is arranged perpendicular to the bottom of the degassing cylinder, and the ultrasonic array is distributed at equal intervals in a grid mode; the quantifying module is used for obtaining to-be-degassed transformer oil from a transformer and injecting the transformer oil into the degassing cylinder through the oil inlet; and the degassing module is used for starting an ultrasonic array to carry out ultrasonic vibration degassing on the transformer oil to obtain degassed target transformer oil. By adopting the method, the degassing efficiency of the transformer oil can be improved.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to a transformer oil degassing device, method, computer equipment, computer-readable storage medium, and computer program product for an oil-immersed transformer. Background Technology

[0002] With the development of electrical technology, various electrical equipment has also continued to progress and develop. Oil-immersed transformers, with their excellent insulation performance, efficient cooling effect and excellent arc extinguishing ability, are increasingly used in the electrical field. However, the transformer oil in the transformer will dissolve various gases, and the gases will react chemically with the transformer materials, affecting the life of the transformer.

[0003] In existing technologies, transformer oil degassing is usually achieved through repeated heating and purging operations, which affects the degassing efficiency. Summary of the Invention

[0004] Therefore, it is necessary to provide a transformer oil degassing device, method, computer equipment, computer-readable storage medium, and computer program product for oil-immersed transformers that can improve the degassing efficiency of transformer oil, in order to address the above-mentioned technical problems.

[0005] In a first aspect, this application provides a transformer oil degassing device for an oil-immersed transformer, comprising: a degassing module and a metering module connected to the degassing module; the degassing module includes an ultrasonic array and a degassing cylinder; the degassing cylinder includes an oil inlet; the ultrasonic array is configured perpendicular to the bottom of the degassing cylinder and is arranged in a grid-like equidistant pattern; the metering module is used to obtain transformer oil to be degassed from the transformer and inject the transformer oil into the degassing cylinder through the oil inlet; the degassing module is used to activate the ultrasonic array to perform ultrasonic vibration degassing on the transformer oil to obtain the degassed target transformer oil.

[0006] In one embodiment, the metering module further includes a first motor and a micro nozzle, the micro nozzle being disposed at the oil inlet, the first motor and the micro nozzle being connected through a first pipe; the first motor is used to draw transformer oil from the transformer, transmit the transformer oil through the first pipe to the micro nozzle, and cooperate with the micro nozzle to pulse-inject the transformer oil into the degassing cylinder.

[0007] In one embodiment, the ultrasonic array includes at least three quartz plates, and the ultrasonic array generates ultrasonic standing waves after startup, with the frequency generated by the ultrasonic array including at least 70 kHz.

[0008] In one embodiment, the device further includes a gas collection module, which includes a second motor and is connected to the degassing cylinder via an exhaust port included in the degassing cylinder; the gas collection module is used to draw dissolved gas extracted from the transformer oil from the degassing cylinder by the second motor.

[0009] In one embodiment, the degassing module further includes an oil pump connected to the transformer via an oil drain port included in the degassing cylinder; the oil pump is used to inject the target transformer oil back to the transformer through the oil drain port.

[0010] Secondly, this application provides a method for degassing transformer oil in an oil-immersed transformer, comprising: a metering module obtaining transformer oil to be degassed from the transformer and injecting the transformer oil into a degassing cylinder through an oil inlet; and a degassing module performing ultrasonic vibration degassing on the transformer oil using an ultrasonic array to obtain the degassed target transformer oil.

[0011] In one embodiment, the metering module obtains transformer oil to be degassed from the transformer and injects the transformer oil into the degassed cylinder through the oil inlet. The metering module includes a first motor that draws transformer oil from the transformer, transmits the transformer oil through a first pipeline to a micro nozzle included in the metering module, and cooperates with the micro nozzle to pulse the transformer oil into the degassed cylinder.

[0012] In one embodiment, the method further includes: the oil pump included in the degassing module injects the target transformer oil back to the transformer through the drain port.

[0013] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the method described in the second aspect above.

[0014] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in the second aspect above.

[0015] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the method described in the second aspect above.

[0016] The aforementioned transformer oil degassing device, method, computer equipment, computer-readable storage medium, and computer program product for oil-immersed transformers extract transformer oil to be degassed from the transformer through a metering module. The transformer oil is then injected into a degassing module connected to the metering module through the oil inlet of a degassing cylinder. The degassing module includes a degassing cylinder. The degassing module activates an ultrasonic array perpendicular to the bottom of the degassing cylinder to perform ultrasonic vibration degassing. The ultrasonic vibration removes the gas trapped in the transformer oil, resulting in degassed target transformer oil. The vertically deployed ultrasonic array enhances the effect of the ultrasonic waves, increasing the degassing volume and efficiency. Furthermore, the ultrasonic array is deployed in a grid-like equidistant arrangement, further enhancing the effect of the ultrasonic waves and thus improving the degassing efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the transformer oil degassing device for a first type of oil-immersed transformer in one embodiment.

[0019] Figure 2 This is a schematic diagram of the transformer oil degassing device for a second type of oil-immersed transformer in one embodiment.

[0020] Figure 3 This is a schematic diagram of the transformer oil degassing device for a third type of oil-immersed transformer in one embodiment.

[0021] Figure 4 This is a schematic diagram of the transformer oil degassing device for a fourth type of oil-immersed transformer in one embodiment.

[0022] Figure 5 This is a schematic diagram of the transformer oil degassing device for the fifth type of oil-immersed transformer in one embodiment.

[0023] Figure 6 This is a schematic diagram of the transformer oil degassing device for the sixth type of oil-immersed transformer in one embodiment.

[0024] Figure 7 This is a schematic flowchart of a transformer oil degassing method for an oil-immersed transformer in one embodiment.

[0025] Figure 8 This is a flowchart illustrating step 701 in one embodiment;

[0026] Figure 9 This is a flowchart illustrating the target transformer oil reinjection step in one embodiment;

[0027] Figure 10 This is a schematic flowchart of a transformer oil degassing method for an oil-immersed transformer in another embodiment.

[0028] Figure 11 This is a schematic diagram of the internal structure of a long strip-shaped ultrasonic array degassing cylinder in one embodiment;

[0029] Figure 12 This is a schematic diagram of the first total sound pressure distribution in one embodiment;

[0030] Figure 13This is a schematic diagram of the second total sound pressure distribution in one embodiment;

[0031] Figure 14 This is a schematic diagram of the internal structure of a grid-type ultrasonic array degassing cylinder in one embodiment;

[0032] Figure 15 This is a schematic diagram of the third total sound pressure distribution in one embodiment;

[0033] Figure 16 This is a schematic diagram of the fourth total sound pressure distribution in one embodiment;

[0034] Figure 17 This is a schematic diagram of the fifth total sound pressure distribution in one embodiment;

[0035] Figure 18 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] It should be noted that the terms "first," "second," etc., used in this application can be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from the second element. The terms "comprising" and "having," and any variations thereof, used in this application, are intended to cover non-exclusive inclusion. The term "multiple" used in this application refers to two or more. The term "and / or" used in this application refers to one of the embodiments, or any combination of multiple embodiments.

[0038] This application provides a transformer oil degassing device for an oil-immersed transformer. In one exemplary embodiment, such as... Figure 1 As shown, the device includes at least a transformer 01, a metering module 02, and a degassing module 03; the degassing module 03 includes an ultrasonic array 04 and a degassing cylinder 05, and the degassing cylinder includes an oil inlet 06. The ultrasonic array 04 is configured perpendicular to the bottom of the degassing cylinder 05, and the ultrasonic array 04 is arranged in a grid-like equidistant pattern.

[0039] The metering module 02 is used to obtain transformer oil to be degassed from transformer 01 and inject the transformer oil into degassed cylinder 05 through oil inlet 06.

[0040] In practical applications, oil-immersed transformers are widely used in the electrical field due to their advantages such as safety, low noise, and ease of maintenance. The principle of an oil-immersed transformer is to immerse the entire transformer equipment in transformer oil, which provides functions such as cooling, noise reduction, and arc extinguishing. However, during operation, transformers generate some dissolved gases. These dissolved gases mainly originate from the decomposition products of transformer oil and solid insulation materials under electrothermal fault conditions. For example, under overheating or partial discharge conditions, hydrogen atoms in the oil may react with other elements to generate hydrogen gas. When the temperature rises to a certain level, the oil undergoes pyrolysis, producing various hydrocarbon gases, including methane, ethane, and ethylene. When a severe arc discharge occurs, acetylene is produced. These dissolved gases are trapped in the transformer oil and cannot be actively discharged, affecting the operation of the oil-immersed transformer. It is necessary to remove these dissolved gases. Furthermore, these dissolved gases can be detected by oil chromatography to monitor the operating status and / or fault status of the oil-immersed transformer.

[0041] To address this, this application applies ultrasonic waves to the transformer oil to be degassed using an ultrasonic array, thereby vibrating the transformer oil and releasing the dissolved gases trapped within it. By configuring the ultrasonic array perpendicular to the bottom of the degassing cylinder, the ultrasonic vibration effect is enhanced, thus improving the degassing efficiency of the transformer oil.

[0042] During implementation, the quantitative module 02 starts the motor to draw transformer oil to be degassed from the transformer. After drawing the transformer oil, the motor is started again to inject the transformer oil into the degassed cylinder 05 through the oil inlet 06.

[0043] In real-world scenarios, the gas produced by transformer 01 may accumulate in a fixed area, and the location where the metering module 02 extracts transformer oil may be relatively fixed. This means that the extracted transformer oil to be degassed may not contain all the gas produced by transformer 01, affecting the degassed effect. To address this, during the process of obtaining the transformer oil to be degassed, the metering module 02 can extract the transformer oil to be degassed and then inject it back into the transformer. This extraction and injection operation is repeated until the number of operations reaches a threshold, at which point the last extracted transformer oil to be degassed is obtained.

[0044] The degassing module 03 is used to activate the ultrasonic array 04 to perform ultrasonic vibration degassing on the transformer oil, thereby obtaining the degassed target transformer oil.

[0045] During implementation, after detecting transformer oil, the degassing module 03 sends a start command to the ultrasonic array 04. Upon activation, the ultrasonic array 04 emits ultrasonic waves, which break the transformer oil into tiny droplets, releasing the dissolved gases trapped within the oil and yielding the degassed target transformer oil. Furthermore, the dissolved gases extracted from the transformer oil can also be obtained.

[0046] During the process, multiple ultrasonic generators in the degassing cylinder are arranged in a grid-like equidistant manner, so that all parts of the degassing cylinder are subjected to strong ultrasonic vibration, which improves the effect of ultrasonic vibration and thus improves the degassing effect and degassing volume of transformer oil.

[0047] It should be noted that, after conducting numerous experiments and simulations, the inventors of this application discovered that vertically mounting the ultrasonic generator at the bottom of the degassing cylinder and arranging it in a grid-like equidistant manner can significantly improve the degassing efficiency and degassing volume.

[0048] Furthermore, before the quantitative module obtains the transformer oil to be degassed, the degassing cylinder 05 can be evacuated to a vacuum state to avoid interference from other gases on the purity of the dissolved gas. This vacuum state can be achieved using an external device, such as a vacuum pump. Further, the degassing cylinder 05 can be gas-purified using nitrogen or inert gas to ensure its cleanliness. Optionally, the degassing cylinder 05 is in a vacuum state.

[0049] The aforementioned transformer oil degassing device for an oil-immersed transformer extracts transformer oil to be degassed from the transformer through a metering module. The transformer oil is then injected into a degassing module connected to the metering module through the inlet of a degassing cylinder. The degassing module includes a degassing cylinder. The degassing module activates an ultrasonic array perpendicular to the bottom of the degassing cylinder to perform ultrasonic vibration degassing. The ultrasonic vibration removes the gas trapped in the transformer oil, resulting in degassed target transformer oil. The vertically deployed ultrasonic array enhances the effect of the ultrasonic waves, increasing the degassing volume and efficiency. Furthermore, the deployment of the ultrasonic array in a grid-like equidistant arrangement further enhances the effect of the ultrasonic waves, thereby improving the degassing efficiency.

[0050] Based on the above exemplary embodiment, the following describes a transformer oil degassing device for an oil-immersed transformer in one or more exemplary embodiments, specifically including the following:

[0051] During the process of transferring transformer oil in the metering module 02, the transformer oil to be degassed can be pulsed into the degassing cylinder 05 via pulse injection; in one optional embodiment provided in this application, such as Figure 2 As shown, the metering module 02 also includes a first motor 021 and a micro nozzle 022. The micro nozzle 022 is disposed at the oil inlet 06, and the first motor 021 and the micro nozzle 022 are connected through a first pipe 023.

[0052] The first motor 021 is used to extract transformer oil from the transformer 01, and to transmit the transformer oil to the micro nozzle 022 through the first pipe 023. The micro nozzle 022 is used to inject the transformer oil into the degassing cylinder 05 in a pulse manner.

[0053] During implementation, the first motor 021 pulls the piston to extract transformer oil from the transformer 01. After extraction, the piston pushes the transformer oil through the first pipe 023 into the micro nozzle 022. The transformer oil is injected into the degassing cylinder 05 through the micro nozzle. The first motor 021 repeatedly executes the "start-stop-start" operation to inject the transformer oil into the degassing cylinder 05 in a pulse manner. Optionally, the transformer oil in the degassing cylinder includes atomized transformer oil.

[0054] One optional implementation method provided in this application is to inject transformer oil by pulse, so that each batch of injected transformer oil can be fully vibrated by ultrasonic vibration, avoiding the problem that the dissolved gas volume is too small and is covered by transformer oil and cannot be discharged, thereby improving the degassing amount and degassing efficiency of transformer oil.

[0055] In practical scenarios, an ultrasonic array may include multiple transducers, which are arranged in a grid pattern at equal intervals to enhance the generated ultrasonic waves; in one optional embodiment provided in this application, such as Figure 3 As shown, the ultrasonic array 04 includes at least three quartz oscillators 031; the ultrasonic array generates ultrasonic standing waves after startup; the frequency generated by the ultrasonic array 04 includes at least 70 kHz.

[0056] An ultrasonic standing wave refers to the phenomenon where two ultrasonic waves of the same frequency and amplitude, propagating in opposite directions, meet in space and interfere to form a stable waveform. In a standing wave, the energy distribution is fixed and does not shift like that of a traveling wave. Standing waves have a specific spatial structure, containing points (called nodes) where the amplitude is always zero, and points (called antinodes) where the amplitude reaches its maximum. The distance between nodes and antinodes depends on the wavelength of the ultrasonic waves that generate the standing wave.

[0057] After extensive experiments and simulations, the inventors of this application discovered that when the frequency generated by the ultrasonic array 04 is 70kHz, the sound pressure distribution exhibits a critical state, manifested as a concentric ring, which can increase the amplitude and internal pressure of the oil, accelerate the movement and escape of gas molecules, and the ultrasonic standing wave mode can disrupt the static surface of the oil and promote gas diffusion.

[0058] One optional implementation provided in this application uses ultrasonic standing waves generated by a quartz diaphragm 031 perpendicular to the degassing cylinder 05 to perform ultrasonic vibration degassing on the transformer oil, thereby improving the degassing efficiency and also increasing the gas diffusion rate, preventing dissolved gas from being encapsulated by the transformer oil again.

[0059] In practical scenarios, a gas collection module can be configured to collect dissolved gases extracted from transformer oil. The operating status and / or fault status of the transformer can be determined by oil chromatography detection of the dissolved gases. In one optional embodiment provided in this application, such as... Figure 4 As shown, it also includes a gas collection module 041, which includes a second motor 042. The gas collection module 041 is connected to the degassing cylinder 05 through the exhaust port 043 of the degassing cylinder 05.

[0060] The gas collection module 041 is used to draw dissolved gas extracted from the transformer oil from the degassing cylinder 05 via the second motor 042.

[0061] During implementation, the gas collection module 041 starts the second motor 042 to pull the piston and draw the dissolved gas extracted from the transformer oil in the degassing cylinder 05; furthermore, the second motor 042 can push the piston to discharge the dissolved gas from the gas collection module 041, or to transfer the dissolved gas to the oil chromatography detection equipment.

[0062] Furthermore, before degassing, the gas collection module 041 can also start the second motor 042 to inject nitrogen and / or inert gas into the degassing cylinder 05 to clean the degassing cylinder, so as to ensure the cleanliness of the degassing cylinder.

[0063] One optional implementation provided in this application uses an independent gas collection module 041 to discharge dissolved gas, thereby preventing dissolved gas from redissolving into the transformer oil and improving the purity of the degassed transformer oil.

[0064] In practical scenarios, the degassed transformer oil can be injected back into transformer 01 to improve the efficiency of transformer oil use; in one optional embodiment provided in this application, such as Figure 5 As shown, the degassing module 03 also includes an oil pump 051, which is connected to the degassing cylinder 05 through the oil outlet 052 of the degassing cylinder 05.

[0065] Oil pump 051 is used to pump the target transformer oil back to transformer 01 through oil drain port 052.

[0066] During implementation, the oil pump 051 in the degassing cylinder 05 starts to draw the target transformer oil and injects the target transformer oil back to the transformer 01 through the pipeline.

[0067] One optional implementation provided in this application is to use an oil pump 051 to inject the target transformer oil back into the transformer 01, thereby improving the utilization efficiency of the transformer oil and avoiding waste of the transformer oil.

[0068] In one embodiment, see Figure 6This document illustrates a schematic diagram of a transformer oil degassing device for an oil-immersed transformer according to an embodiment of this application. The device includes a degassing cylinder 601, a quartz vibrator 602 of an ultrasonic array, an oil pump 603, a metering cylinder 604, a first motor 605 for the metering cylinder 604, a gas collecting cylinder 606, a second motor 607 for the gas collecting cylinder 606, solenoid valves 608, 609, 610, and 611, a micro nozzle 612, and a vacuum pump 613, wherein:

[0069] A miniature nozzle 612 is installed at the oil inlet of the degassing cylinder 601. The degassing cylinder 601 is connected to the metering cylinder 604 via a solenoid valve 608. The oil outlet of the degassing cylinder 601 is connected to the transformer oil tank via an oil pump 603. The oil inlet is located at the top of the degassing cylinder 601, and the oil outlet is located at the bottom of the degassing cylinder 601. The degassing cylinder 601 is connected to the gas collecting cylinder 606 via a solenoid valve 609. The oil pump 603 is used to inject the degassed target transformer oil back into the transformer oil tank.

[0070] The quartz transducers 602 of the ultrasonic array are arranged vertically upwards at the bottom of the degassing cylinder 601. The quartz transducers 602 of the ultrasonic array are used to generate ultrasonic waves for ultrasonic vibration degassing.

[0071] The metering cylinder 604 is connected to the transformer oil tank via solenoid valve 610. The metering cylinder 604 is also connected to the degassing cylinder 601 via solenoid valve 608. The metering cylinder 604 is also connected to solenoid valve 611. Solenoid valves 608, 610, and 611 are connected via a three-way pipe. The first motor 605 of the metering cylinder 604 is used to extract and transfer transformer oil.

[0072] The second motor 607 of the gas collecting cylinder 606 is used to collect the dissolved gas released from the degassing cylinder 601 and discharge the dissolved gas.

[0073] Vacuum pump 613 is connected to degassing cylinder 601 through the exhaust port of degassing cylinder 601. Vacuum pump 613 is used to evacuate degassing cylinder 601 to a vacuum state between degassing operations.

[0074] It should be noted that the above Figure 6 The modules, components, and / or units shown can be replaced with the ones described above in actual scenarios, depending on the usage requirements. Figures 1 to 5 The provided module, component, and / or unit means that it may not be needed in a real-world scenario. Figure 6 All the modules, components and / or units shown can solve the technical problem and achieve the technical effect.

[0075] Each module in the transformer oil degassing device of the aforementioned oil-immersed transformer can be controlled entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0076] It should be noted that the solution provided by the above-mentioned device is similar to the solution described in the following method. Therefore, the specific limitations of the above-mentioned one or more embodiments of the transformer oil degassing device for oil-immersed transformers can be found in the following limitations of the transformer oil degassing method for oil-immersed transformers. Correspondingly, the steps performed in the following method can also be found in the modules and / or units of the above-mentioned device, and will not be repeated hereafter.

[0077] The transformer oil degassing method for oil-immersed transformers provided in this application embodiment can be applied to... Figures 1 to 5 In any of the application environments shown. In one exemplary embodiment, such as Figure 7 As shown, a method for degassing transformer oil in an oil-immersed transformer is provided, including the following steps 701 to 702.

[0078] Step 701: The metering module obtains the transformer oil to be degassed from the transformer and injects the transformer oil into the degassing cylinder through the oil inlet.

[0079] In this application, transformer oil refers to the transformer oil in an oil-immersed transformer. The transformer oil can be mineral oil, such as silicone oil, or synthetic ester oil. During operation, the transformer oil reacts with the transformer oil to generate dissolved gases. These dissolved gases are encapsulated by the transformer oil, forming transformer oil to be degassed.

[0080] During implementation, the metering module draws transformer oil to be degassed from the transformer through a motor, and then injects the transformer oil into the degassing cylinder through the oil inlet through the motor.

[0081] In real-world scenarios, the gases produced by the transformer may accumulate in a fixed area, and the location where the quantitative module extracts transformer oil may be relatively fixed. This means that the extracted transformer oil to be degassed may not contain all the gases produced by the transformer, affecting the degassed effect. To address this, during the process of obtaining the transformer oil to be degassed, the quantitative module can extract the transformer oil to be degassed and then inject it back into the transformer. This extraction and injection operation is repeated until the number of operations reaches a threshold, at which point the last extracted transformer oil to be degassed is obtained.

[0082] Step 702: The degassing module uses an ultrasonic array to degas the transformer oil via ultrasonic vibration, thereby obtaining the degassed target transformer oil.

[0083] During implementation, the degassing module activates the ultrasonic array, using ultrasonic waves generated by the array to degas the transformer oil through ultrasonic vibration, resulting in the degassed target transformer oil. Furthermore, dissolved gases in the transformer oil can also be obtained.

[0084] Furthermore, before the quantitative module obtains the transformer oil to be degassed, the degassing cylinder can be evacuated to a vacuum state to avoid interference from other gases on the purity of the dissolved gas. This vacuum state can be achieved using an external device, such as a vacuum pump. Further, the degassing cylinder can be gas-purified using nitrogen or inert gas to ensure its cleanliness. Optionally, the degassing cylinder is in a vacuum state.

[0085] In addition, after the degassing process is completed, a settling process can be carried out to allow the degassed transformer oil and dissolved gas to settle and achieve gas-liquid balance.

[0086] In the above-mentioned method for degassing transformer oil in an oil-immersed transformer, transformer oil to be degassed is extracted from the transformer through a metering module. The transformer oil is then injected into a degassing module connected to the metering module through the inlet of the degassing cylinder. The degassing module includes a degassing cylinder. The degassing module activates an ultrasonic array perpendicular to the bottom of the degassing cylinder to perform ultrasonic vibration degassing. The gas trapped in the transformer oil is removed by ultrasonic vibration, resulting in degassed target transformer oil. The vertically deployed ultrasonic array enhances the effect of ultrasonic waves, increasing the degassing amount and efficiency. Furthermore, the ultrasonic array is deployed in a grid-like equidistant arrangement, further enhancing the effect of ultrasonic waves and thus improving the degassing efficiency.

[0087] Based on the above exemplary embodiment, the following provides a method for degassing transformer oil in an oil-immersed transformer in one or more exemplary embodiments, specifically including the following contents.

[0088] During the process of extracting transformer oil using the quantitative module, the transformer oil can be injected in batches into the degassing cylinder via pulse injection for degassing treatment, thereby improving the effectiveness of degassing; in one optional embodiment provided in this application, such as Figure 8 As shown, step 701 includes step 801:

[0089] Step 801: The first motor of the metering module draws transformer oil from the transformer, transmits the transformer oil through the first pipeline to the micro nozzle of the metering module, and cooperates with the micro nozzle to pulse the transformer oil into the degassing cylinder.

[0090] During implementation, the quantitative module starts the first motor to pull the piston to draw transformer oil from the transformer, pushes the piston through the first pipe to press the transformer oil into the micro nozzle, and injects the transformer oil into the degassing cylinder in a "start-stop-start" cycle.

[0091] Furthermore, when the degassing cylinder is under vacuum, the injected transformer oil can be atomized by air pressure, resulting in a smaller volume of atomized transformer oil. For example, when the degassing cylinder is under vacuum, the oil sample entering the degassing cylinder in a pulse manner is in the form of oil droplets or oil mist, which has a very large surface area, thus enabling effective degassing.

[0092] One optional implementation provided in this application uses pulse injection to degas the transformer oil in batches using an ultrasonic array. Degassing small batches of transformer oil avoids the transformer oil re-encapsulating small volumes of gas, thus improving degassing efficiency.

[0093] After obtaining the target transformer oil, it can be injected back into the transformer via the oil pump of the degassing cylinder, realizing the recycling of the transformer oil; in one optional embodiment provided in this application, such as Figure 9 As shown, it also includes step 901:

[0094] Step 901: The oil pump included in the degassing module injects the target transformer oil back into the transformer through the oil drain port.

[0095] During implementation, the degassing module starts the oil pump connected to the degassing cylinder to extract the degassed target transformer oil and inject it back into the transformer through the drain port, thus realizing the reuse of transformer oil.

[0096] In one optional embodiment provided in this application, the degassed target transformer oil is injected back into the transformer through the drain port using an oil pump, thereby improving the utilization efficiency of the transformer oil.

[0097] It should be noted that the transformer oil degassing method for an oil-immersed transformer provided in one or more embodiments of this application is illustrated using only one dissolved gas collection process as an example. In actual scenarios, the dissolved gas collection process may be performed multiple times. Therefore, in practical applications, some steps in the above one or more embodiments may be repeatedly executed a preset number of times. For example, steps 701 to 702 may be executed again after the dissolved gas is obtained. Therefore, any combination and / or variation of the execution order and number of executions of the steps in one or more embodiments of this application are within the scope of protection of this application.

[0098] In one embodiment, see Figure 10The document illustrates a flowchart of a transformer oil degassing method for an oil-immersed transformer according to an embodiment of this application. This method can be applied to... Figure 6 The transformer oil degassing device shown is used in the oil-immersed transformer. For example... Figure 10 As shown, the method for degassing the transformer oil in this oil-immersed transformer may include the following steps:

[0099] Step 1001: The vacuum pump draws the degassing cylinder into a vacuum state.

[0100] Step 1002: The second motor of the gas collecting cylinder sends nitrogen into the degassing cylinder, and the vacuum pump performs evacuation and flushing.

[0101] Step 1003: The first motor of the metering cylinder draws transformer oil to be degassed from the transformer.

[0102] Step 1004: The first motor injects transformer oil pulses into the degassing cylinder.

[0103] Step 1005: The degassing module starts the ultrasonic array to perform ultrasonic vibration degassing, and obtains the degassed target transformer oil and dissolved gas.

[0104] Step 1006: The second motor of the gas collecting cylinder extracts the dissolved gas from the degassing cylinder and discharges the dissolved gas.

[0105] Step 1007: The oil pump of the degassing module extracts the target transformer oil and injects it back into the transformer.

[0106] It should be noted that any one or more of steps 1001 to 1007 can be combined to form a new implementation method according to the needs of implementation and deployment. Furthermore, any one or more technical features in the technical solution composed of steps 1001 to 1007 can also be combined to form a new implementation method according to the actual deployment needs, or technical features in one or more optional implementation methods provided by one or more of the above embodiments can be combined to form a new implementation method. These will not be elaborated on here.

[0107] It should be noted that in one or more embodiments provided above, each module and the units included in each module can be controlled by a unified control module. For example, they can be controlled by a degassing control module to control each module to perform degassing treatment. That is, in one or more embodiments provided above, the degassing control module included in the transformer oil degassing device of the oil-immersed transformer can be used as the execution subject.

[0108] This application also provides one or more simulation examples to support and illustrate the technical solution of this application, as described below.

[0109] The first simulation example provided in this application constructs a three-dimensional model of an ultrasonic-enhanced degassing experiment in the COMSOL simulation system, and sets the structural and operational parameters of the ultrasonic-enhanced degassing experiment; defines the physical field and boundary conditions of the ultrasonic-enhanced hydrometallurgical experiment; divides the three-dimensional model of the ultrasonic-enhanced degassing experiment into different arrangement forms according to the inherent characteristics of ultrasound; uses the pressure acoustics-solid mechanics-electrostatics module for simulation, solves the three-dimensional model of the ultrasonic-enhanced degassing experiment, and simultaneously superimposes the frequency domain to the time domain to obtain the total sound pressure of the surface sound field, the total sound pressure of the XY section, and the total sound pressure distribution map of the isosurface of the ultrasonic array-enhanced degassing experiment. During execution, the acoustic physics module and frequency domain analysis method are selected in the COMSOL simulation system; during execution, the model parameters and model variables of the reaction chamber and ultrasonic transducer in the ultrasonic-enhanced degassing experiment are defined; during execution, the three-dimensional model of the reaction chamber and ultrasonic transducer of the ultrasonic-enhanced degassing experiment is constructed. During the execution process, when defining the boundary conditions of the ultrasonic enhanced degassing experiment, the pressure acoustic model in the COMSOL simulation system was used to convert the ultrasonic frequency and power into sound pressure parameters, and the boundary conditions of the ultrasonic enhanced degassing experiment in the COMSOL system were defined by the sound pressure parameters. During the execution process, the three-dimensional model was divided into different shapes and arrays according to the inherent characteristics of ultrasound. (1) The three-dimensional model of the ultrasonic transducer was set to use long strip ultrasonic diaphragms placed vertically at the bottom of the degassing cylinder to form a ring array; (2) The three-dimensional model of the ultrasonic transducer was set to use grid ultrasonic diaphragms placed horizontally at a certain distance from the bottom of the degassing cylinder to form a grid array. During the execution process, when constructing the reaction chamber and the three-dimensional model of the ultrasonic enhanced degassing experiment, the array of the ultrasonic transducers was completely immersed in transformer oil. During the execution process, the color changes in the total sound pressure and the total sound pressure distribution diagrams of the X and Y sections were used to analyze the distribution of the sound field during the enhancement process by the ultrasonic operation parameters and structural parameters, and to obtain the optimal experimental condition parameters.

[0110] For example, the internal structure diagram of the elongated ultrasonic array degassing cylinder is as follows: Figure 11 As shown.

[0111] The second simulation example provided in this application establishes a three-dimensional model of a cylindrical degassing cylinder and a strip-shaped ultrasonic array in COMSOL, and uses a pressure acoustic-solid mechanics model for simulation. The cylindrical degassing cylinder has a radius of 40mm and a height of 100mm. Three uniformly distributed strip-shaped ultrasonic transducer arrays are placed at the bottom. The strip transducers are 2mm wide, 10mm long, and 1mm thick, and are all immersed in transformer oil, forming a unified structure in the system. The transducers used are made of PZT-4 material. The simulated ultrasonic power is 100W. The three-dimensional model of the strip-shaped ultrasonic transducer array in the ultrasonic-enhanced degassing experiment is solved, and the sound field and sound pressure distribution of the strip-shaped ultrasonic transducers in the cylindrical degassing cylinder cavity at different frequencies are visualized, obtaining surface, cross-sectional, and isosurface sound pressure distribution maps of the ultrasonic array-enhanced degassing experiment.

[0112] For example, the visualized total sound pressure distribution at 30 kHz obtained by the method of generating visualized ultrasonic physical fields based on ultrasonic simulation is shown below. Figure 12 As shown, this includes the total sound pressure distribution of the sound field. Figure 12 (a) and total sound pressure distribution in the XY section Figure 12 (b); The visualized total sound pressure distribution at 90 kHz obtained by the method of generating visualized ultrasonic physical fields based on ultrasonic simulation is shown below. Figure 13 As shown, this includes the total sound pressure distribution of the sound field. Figure 13 (a) and the total sound pressure distribution in the XY section. Figure 13 (b).

[0113] The third simulation example provided in this application establishes a three-dimensional model of a cylindrical degassing cylinder and a grid ultrasonic array in COMSOL, and uses a pressure acoustic-solid mechanics model for simulation. The cylindrical degassing cylinder has a radius of 40mm and a height of 100mm. A circular support with the same inner diameter as the cylinder is installed 10mm from the bottom. Ten square ultrasonic transducers are evenly distributed on the support, each with a grid size of 5mm long, 5mm wide, and 2mm thick. The above structures form a unified whole in the system and are completely immersed in transformer oil. The transducers used are made of PZT-4 material. The simulated ultrasonic power is 100W. The three-dimensional model of the grid ultrasonic transducer array in the ultrasonic-enhanced degassing experiment is solved, and the sound field and sound pressure distribution of the elongated ultrasonic transducer in the cylindrical degassing cylinder cavity at different frequencies are visualized, obtaining the surface, cross-sectional, and isosurface sound pressure distribution maps of the ultrasonic array-enhanced degassing experiment.

[0114] For example, the internal structure diagram of a grid-type ultrasonic array degassing cylinder is as follows: Figure 14 As shown, the visualized total sound pressure distribution at 50kHz, obtained by the method of generating visualized ultrasonic physical fields based on ultrasonic simulation, is as follows. Figure 15 As shown, this includes the total sound pressure distribution of the sound field. Figure 15 (a) and total sound pressure distribution in the XY section Figure 15 (b); The visualized total sound pressure distribution at 70 kHz obtained by the method of generating visualized ultrasonic physical fields based on ultrasonic simulation is shown below. Figure 16 As shown, this includes the total sound pressure distribution of the sound field. Figure 16 (a) and total sound pressure distribution in the XY section Figure 16 (b); The visualized total sound pressure distribution at 90 kHz obtained by the method of generating visualized ultrasonic physical fields based on ultrasonic simulation is shown below. Figure 17 As shown, this includes the total sound pressure distribution of the sound field. Figure 17 (a) and total sound pressure distribution in the XXY section Figure 17 (b).

[0115] Therefore, it is evident that, assuming consistent temperature, ultrasonic transducer parameters, degassing cylinder size, and ultrasonic frequency, frequency has a significant impact on sound pressure distribution. Different types of ultrasonic arrays exhibit considerable differences in sound pressure distribution. Generally, grid-type transducers outperform vertical strip transducers in both sound pressure intensity and uniformity. Different arrangements lead to significant differences in sound pressure distribution. In a grid-type ultrasonic array configuration, different frequencies result in different sound pressure distribution patterns. At lower frequencies, the sound pressure is higher at the bottom and relatively lower at the top; while at higher frequencies, the sound pressure becomes more uniform in the vertical direction. In particular, at a frequency of 70 kHz, the sound pressure distribution exhibits a critical state, resembling concentric rings. When a vertical strip transducer is placed, even at a lower frequency of 30 kHz, a relatively uniform vertical sound pressure distribution can be observed.

[0116] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages in other steps. It is understood that the steps in different embodiments can be freely combined as needed, and all non-contradictory solutions formed by such combinations are within the scope of protection of this application.

[0117] In one exemplary embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 18As shown, the computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores transformer oil degassing data for oil-immersed transformers. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for degassing transformer oil in an oil-immersed transformer.

[0118] Those skilled in the art will understand that Figure 18 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0119] In one exemplary embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to perform the following steps: a metering module obtains transformer oil to be degassed from a transformer and injects the transformer oil into a degassing cylinder through an oil inlet; the degassing module degasses the transformer oil by ultrasonic vibration using an ultrasonic array to obtain the degassed target transformer oil.

[0120] In one embodiment, when the processor executes the computer program, it specifically implements the following steps: the first motor included in the metering module draws transformer oil from the transformer, transmits the transformer oil through the first pipeline to the micro nozzle included in the metering module, and cooperates with the micro nozzle to pulse the transformer oil into the degassing cylinder.

[0121] In one embodiment, when the processor executes the computer program, it also performs the following steps: the oil pump included in the degassing module injects the target transformer oil back to the transformer through the drain port.

[0122] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon. When the computer program is executed by a processor, it performs the following steps: a metering module obtains transformer oil to be degassed from the transformer and injects the transformer oil into a degassing cylinder through an oil inlet; the degassing module degasses the transformer oil by ultrasonic vibration using an ultrasonic array to obtain the degassed target transformer oil.

[0123] In one embodiment, when the processor executes the computer program, it specifically implements the following steps: the first motor included in the metering module draws transformer oil from the transformer, transmits the transformer oil through the first pipeline to the micro nozzle included in the metering module, and cooperates with the micro nozzle to pulse the transformer oil into the degassing cylinder.

[0124] In one embodiment, when the processor executes the computer program, it also performs the following steps: the oil pump included in the degassing module injects the target transformer oil back to the transformer through the drain port.

[0125] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps: a metering module obtains transformer oil to be degassed from a transformer and injects the transformer oil into a degassing cylinder through an oil inlet; a degassing module degasses the transformer oil by ultrasonic vibration using an ultrasonic array to obtain the degassed target transformer oil.

[0126] In one embodiment, when the processor executes the computer program, it specifically implements the following steps: the first motor included in the metering module draws transformer oil from the transformer, transmits the transformer oil through the first pipeline to the micro nozzle included in the metering module, and cooperates with the micro nozzle to pulse the transformer oil into the degassing cylinder.

[0127] In one embodiment, when the processor executes the computer program, it also performs the following steps: the oil pump included in the degassing module injects the target transformer oil back to the transformer through the drain port.

[0128] It should be noted that the data involved in this application (including but not limited to data used for analysis, data stored, data displayed, etc.) are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0129] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0130] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0131] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A transformer oil degassing device for an oil-immersed transformer, characterized in that, The device includes: a degassing module and a metering module connected to the degassing module. The degassing module includes an ultrasonic array and a degassing cylinder. The degassing cylinder includes an oil inlet. The ultrasonic array is arranged perpendicular to the bottom of the degassing cylinder and is arranged in a grid pattern with equal spacing. The metering module is used to obtain transformer oil to be degassed from the transformer and inject the transformer oil into the degassed cylinder through the oil inlet; The degassing module is used to activate the ultrasonic array to degas the transformer oil using ultrasonic vibration, thereby obtaining the degassed target transformer oil.

2. The apparatus according to claim 1, characterized in that, The metering module further includes a first motor and a micro nozzle, the micro nozzle being disposed at the oil inlet, and the first motor and the micro nozzle being connected through a first pipe; The first motor is used to extract transformer oil from the transformer, transmit the transformer oil through the first pipe to the micro nozzle, and cooperate with the micro nozzle to inject the transformer oil into the degassing cylinder in a pulse manner.

3. The apparatus according to claim 1, characterized in that, The ultrasonic array includes at least three quartz plates, and generates ultrasonic standing waves after startup. The frequency generated by the ultrasonic array includes at least 70 kHz.

4. The apparatus according to any one of claims 1-3, characterized in that, The device further includes a gas collection module, which includes a second motor, and the gas collection module is connected to the degassing cylinder through the exhaust port included in the degassing cylinder; The gas collection module is used to draw dissolved gas extracted from the transformer oil from the degassing cylinder via a second motor.

5. The apparatus according to claim 4, characterized in that, The degassing module also includes an oil pump, which is connected to the transformer via the oil drain port included in the degassing cylinder; The oil pump is used to inject the target transformer oil back into the transformer through the oil drain port.

6. A method for degassing transformer oil in an oil-immersed transformer, characterized in that, Applied to the apparatus of claim 1, the method comprises: The metering module obtains transformer oil to be degassed from the transformer and injects the transformer oil into the degassing cylinder through the oil inlet; The degassing module uses an ultrasonic array to degas the transformer oil via ultrasonic vibration, resulting in degassed target transformer oil.

7. The method according to claim 6, characterized in that, The metering module obtains transformer oil to be degassed from the transformer and injects the transformer oil into the degassed cylinder through the oil inlet, including: The metering module includes a first motor that draws transformer oil from the transformer, transmits the transformer oil through a first pipeline to a micro nozzle included in the metering module, and cooperates with the micro nozzle to pulse the transformer oil into the degassing cylinder.

8. The method according to claim 6, characterized in that, The method further includes: The degassing module includes an oil pump that injects the target transformer oil back into the transformer through the drain port.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 6 to 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 6 to 8.

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