An automatic transformer oil standard configuration device and method

The automated transformer oil standard configuration device addresses accuracy issues in dissolved gas monitoring by automating the configuration process, improving efficiency and quality through controlled input of raw materials and heat circulation.

CN115683774BActive Publication Date: 2024-12-17STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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Patent Information

Application Number
CN202211333961.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-28
Publication Date
2024-12-17
Estimated Expiration
2042-10-28

AI Technical Summary

Technical Problem

Existing transformer oil dissolved gas online monitoring devices suffer from accuracy drift, omissions, and false alarms due to inaccurate manual or instrument-based standard oil configuration methods, which are time-consuming and require human intervention.

Method used

An automated transformer oil standard configuration device and method using a controller to manage the input of raw materials through pipelines, including an oil inlet, air inlet, and trace water inlet, with a heat circulation pipeline to accelerate dissolution and improve fusion efficiency.

Benefits of technology

Enables one-time automatic configuration of standard oil, enhancing configuration efficiency and quality by automating the process and accelerating component fusion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an automatic transformer oil standard oil configuration device and method, including a delivery pump, an oil seal device, an oil storage cylinder, an oil inlet / suction distributor, an oil inlet pipeline, an air inlet pipeline, a trace water inlet pipeline and a heat circulation pipeline, wherein the oil seal device is arranged in the oil storage cylinder, and the oil seal device and the oil storage cylinder form an oil storage space; the output end of the delivery pump is connected with the oil inlet / suction distributor, and the standard oil configuration raw materials are delivered to the oil storage cylinder; the oil inlet pipeline, the air inlet pipeline and the trace water inlet pipeline are all connected with the input end of the delivery pump; each pipeline is provided with one or more electromagnetic valves for controlling the on-off of the pipeline, and each electromagnetic valve is electrically connected to a controller. The present invention controls the on-off of each pipeline through a controller to realize the automatic input of oil, fault gas and water gas, thereby realizing the one-time automatic configuration of standard oil, and at the same time, the circulation of oil in the heat circulation pipeline can accelerate the fusion of various components of standard oil, thereby improving the configuration efficiency and quality.
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Description

Technical Field

[0001] The invention relates to the technical field of transformer oil standard oil configuration, and in particular to an automatic transformer oil standard oil configuration device and method. Background Art

[0002] With the continuous development of domestic smart substation construction, more and more online monitoring devices for dissolved gas in transformer oil are widely used in condition inspection and maintenance. By summarizing and analyzing the actual application of online monitoring devices this year, affected by environmental factors and device stability, online monitoring devices for dissolved gas in transformer oil have experienced accuracy drift, and even omissions and false alarms due to inaccurate measurements. Therefore, it is very necessary to carry out inspection and calibration of online monitoring devices such as dissolved gas in transformer oil, and the key to this work is the configuration of standard oil. At present, the common standard oil configuration method is manual or instrument configuration. Traditional standard oil configuration devices often use natural dissolution to dissolve gas in the oil sample. This method takes a long time to configure, the configuration effect is not good, and manual intervention is required to complete the configuration work. Summary of the invention

[0003] The object of the present invention is to provide an automated transformer oil standard oil configuration device and method, which utilizes a controller to control the input of raw materials such as oil, fault gas and water vapor, thereby realizing automated configuration of standard oil. At the same time, the oil inlet pipeline, the air inlet pipeline and the trace water inlet pipeline can realize one-time configuration of standard oil, and the heat circulation pipeline can effectively accelerate the dissolution of fault gas in the oil and improve the fusion effect.

[0004] The present invention is achieved through the following technical solutions:

[0005] An automatic transformer oil standard configuration device comprises a delivery pump, an oil seal device, an oil storage cylinder, an oil inlet / inlet distributor, an oil inlet pipeline, an air inlet pipeline, a trace water inlet pipeline and a heat circulation pipeline, wherein the oil seal device is arranged in the oil storage cylinder, and the oil seal device and the oil storage cylinder enclose an oil storage space;

[0006] The output end of the delivery pump is connected to the oil inlet / inlet distributor and delivers the standard oil configuration raw material into the oil storage cylinder;

[0007] The oil inlet pipeline, the air inlet pipeline and the trace water inlet pipeline are all connected to the input end of the delivery pump;

[0008] The heat circulation pipeline includes an oil return section and a circulation section, one end of the oil return section is connected to the oil inlet / intake distributor, the other end of the oil return section is connected to the input end of the delivery pump, one end of the circulation section is connected to the output end of the delivery pump, and the other end of the circulation section extends to the oil sealing device and is connected to the oil preparation and storage space;

[0009] Each pipeline is provided with one or more solenoid valves for controlling the on-off of the pipeline, and each solenoid valve is electrically connected to the controller. In order to solve the above technical problems and realize the corresponding technical solutions, the present invention controls the on-off of each pipeline through the controller to realize the automatic input of oil, fault gas and water gas, so as to realize the one-time automatic configuration of standard oil. At the same time, the circulation of oil in the heat circulation pipeline can accelerate the fusion of various components of standard oil, so as to improve the configuration efficiency and quality.

[0010] Further technical solution: the oil inlet pipeline is provided with an oil inlet filter pressure reducing valve, an oil mass flow controller and an oil supply solenoid valve in sequence from the oil inlet end;

[0011] The air intake pipeline is provided with an air intake filter pressure reducing valve, a gas mass flow controller, an air supply solenoid valve and an air supply check valve in sequence from one end of the air intake;

[0012] A gas exchange branch is provided between the gas mass flow controller and the gas supply solenoid valve, and a gas replacement solenoid valve is provided on the gas exchange branch;

[0013] The micro-amount water inlet pipeline is provided with a micro-amount water filling solenoid valve, the water inlet end of the micro-amount water inlet pipeline is provided with a sealing plug, and a quantitative water supply device is provided inside the sealing plug.

[0014] Furthermore: the oil return sections of the air intake pipeline, the trace water intake pipeline and the heat circulation pipeline are connected to each other and then connected to the input end of the delivery pump, and an oil return solenoid valve is provided on the oil return section.

[0015] Further: an oil inlet solenoid valve and a check valve are provided on the communication pipeline between the delivery pump and the oil inlet / inlet distributor;

[0016] Furthermore: the circulation section of the heat circulation pipeline is provided with a heater, the connecting pipeline between the output end of the delivery pump and the heater is provided with a heater inlet solenoid valve and a heater inlet manual regulating valve, and the connecting pipeline between the heater and the oil storage space is provided with a heater outlet solenoid valve.

[0017] Furthermore: the oil return section of the heat circulation pipeline is provided with an oil intake branch, and the oil intake branch is provided with an oil intake manual valve.

[0018] Further: the oil seal device is slidably disposed in the oil storage cylinder, and the oil seal device can slide along the axis direction of the oil storage cylinder;

[0019] Furthermore: the oil storage cylinder is provided with an upper limit and a lower limit for limiting the sliding range of the oil sealing device.

[0020] Furthermore: a safety valve is also provided on the wall of the oil storage cylinder above the upper limit position;

[0021] Furthermore: the oil sealing device is provided with a top exhaust port, and the top exhaust port is matched with an exhaust pipeline, and an exhaust solenoid valve is arranged on the exhaust pipeline.

[0022] Further: a temperature sensor, a low liquid level switch and a pressure sensor are arranged in the oil storage space, and the temperature sensor, the low liquid level switch and the pressure sensor are all electrically connected to the controller.

[0023] An automated transformer oil standard oil configuration method, using an automated transformer oil standard oil configuration device, the operation method is as follows:

[0024] Input the transformer oil, pass the transformer oil into the oil storage cylinder through the delivery pump, and push the oil seal device to slide upward;

[0025] Oil heating circulation, circulating the oil through the heat circulation pipeline and heating the oil during circulation;

[0026] Input fault gas and trace moisture, pass the fault gas and trace moisture into the oil through the air intake pipeline and the trace water intake pipeline to complete the fusion.

[0027] All valves of the device are in closed state before working. The specific operation method is as follows:

[0028] When the variable pressure oil input operation is performed, the controller controls to open the oil inlet filter pressure reducing valve, oil supply solenoid valve, oil inlet solenoid valve, check valve and exhaust solenoid valve and start the delivery pump. The oil is pumped into the oil storage cylinder through the delivery pump. When the oil seal device slides to the upper limit and oil comes out of the exhaust pipe, the oil input is stopped;

[0029] When the oil heating circulation operation is performed, the controller controls the opening of the oil return solenoid valve, the heater inlet solenoid valve, the heater inlet manual regulating valve and the heater outlet solenoid valve, starts the heater and the delivery pump, and the oil circulates in the heat circulation pipeline and is heated by the heater;

[0030] When the fault gas input operation is performed, the controller controls the opening of the air inlet filter pressure reducing valve, air supply solenoid valve and air supply check valve, and the fault gas passes into the heat circulation pipeline through the air intake pipeline and mixes with the circulating oil;

[0031] When the trace water input operation is performed, the controller controls the opening of the trace water filling solenoid valve, and configures a quantitative water supply device on the sealing plug. The trace water enters the heat circulation pipeline through the trace water inlet pipeline and mixes with the circulating oil;

[0032] When the oil level in the oil storage tank drops to the alarm level and triggers the low level switch, the controller controls the delivery pump to force shutdown.

[0033] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0034] 1. The present invention discloses an automatic transformer oil standard oil configuration device and method, which controls the on-off of each pipeline through a controller to realize the automatic input of oil, fault gas and water vapor, thereby realizing a one-time automatic configuration of standard oil. At the same time, the circulation of oil in the heat circulation pipeline can accelerate the fusion of various components of the standard oil, thereby improving the configuration efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0036] Figure 1 It is a schematic diagram of the structure of the present invention;

[0037] Figure 2 It is a detailed diagram of the pipeline structure of the present invention;

[0038] Figure 3 This is a partial enlarged view of point A.

[0039] Marks and corresponding parts names in the attached drawings:

[0040] 1-delivery pump, 2-oil mass flow controller, 3-gas mass flow controller, 4-heater, 5-controller, 6-oil sealing device, 7-exhaust pipeline, 8-temperature sensor, 9-low liquid level switch, 10-pressure sensor, 11-safety valve, 12-oil storage cylinder, 13-oil inlet / suction distributor, 14-lower limit, 15-upper limit, 16-oil inlet solenoid valve, 17-oil return solenoid valve, 18-air supply solenoid valve, 19-displacement solenoid valve, 20-oil supply solenoid valve, 21-oil extraction manual valve, 22-heater inlet solenoid valve, 23-heater inlet manual regulating valve, 24-heater outlet solenoid valve, 25-air inlet filter pressure reducing valve, 26-oil inlet filter pressure reducing valve, 27-trace water filling solenoid valve, 28-sealing plug. 29-check valve, 30-exhaust solenoid valve, 31-intake check valve, 100-oil inlet pipeline, 200-intake pipeline, 300-trace water inlet pipeline, 400-heat circulation pipeline. DETAILED DESCRIPTION

[0041] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0042] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other embodiments, in order to avoid obscuring the present invention, well-known structures, circuits, materials, or methods are not specifically described.

[0043] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0045] Example 1

[0046] like Figures 1 to 3 As shown, the present invention is an automatic transformer oil standard configuration device, comprising a delivery pump 1, an oil seal device 6, an oil storage cylinder 12, an oil inlet / inlet distributor 13, an oil inlet pipeline 100, an air inlet pipeline 200, a trace water inlet pipeline 300 and a heat circulation pipeline 400, wherein the oil seal device 6 is arranged in the oil storage cylinder 12, and the oil seal device 6 and the oil storage cylinder 12 enclose an oil storage space;

[0047] The output end of the delivery pump 1 is connected to the oil inlet / inlet distributor 13, and delivers the standard oil configuration raw material into the oil storage cylinder 12;

[0048] The oil inlet pipeline 100, the air inlet pipeline 200 and the trace water inlet pipeline 300 are all connected to the input end of the delivery pump 1;

[0049] The heat circulation pipeline 400 includes an oil return section and a circulation section, one end of the oil return section is connected to the oil inlet / intake distributor 13, and the other end of the oil return section is connected to the input end of the delivery pump 1, one end of the circulation section is connected to the output end of the delivery pump 1, and the other end of the circulation section extends to the oil sealing device 6 and is connected to the oil preparation and storage space;

[0050] Each pipeline is provided with one or more electromagnetic valves for controlling the on-off of the pipeline, and each electromagnetic valve is electrically connected to the controller 5. In this embodiment, the components such as the oil, fault gas and water vapor of the configuration standard oil are all delivered to the delivery pump 1 through their respective delivery pipelines, and then pumped by the delivery pump 1 to the oil storage cylinder 12 to complete the mixing, and then the mixed liquid is circulated through the heat circulation pipeline 400, and the fusion speed between the components is accelerated during the circulation process, and the fusion effect of the components can be effectively improved. At the same time, the controller 5 can be used to control the introduction of each component in each pipeline, thereby reducing manual participation and realizing automatic configuration.

[0051] The oil inlet pipeline 100 is provided with an oil inlet filter pressure reducing valve 26, an oil mass flow controller 2 and an oil supply solenoid valve 20 in sequence from the oil inlet end; the air inlet pipeline 200 is provided with an air inlet filter pressure reducing valve 25, a gas mass flow controller 3, a gas supply solenoid valve 18 and an air inlet check valve 31 in sequence from the air inlet end; a ventilation branch is provided between the gas mass flow controller 3 and the gas supply solenoid valve 18, and a gas replacement solenoid valve 19 is provided on the ventilation branch; the trace water inlet pipeline 300 is provided with a trace water filling solenoid valve 27, and a sealing plug 28 is provided at the water inlet end of the trace water inlet pipeline 300, and a quantitative water supply device is provided in the sealing plug. In this embodiment, solenoid valves are provided on each pipeline and its branches, and the on-off state of each solenoid valve is controlled by a controller, thereby controlling the on-off state of each pipeline and its branches, realizing the input of each component, thereby realizing the mixing and fusion of each component, and truly realizing the one-time configuration of the standard oil. At the same time, before introducing different fault gases, the residual previous fault gas in the intake pipe 200 needs to be cleaned through the ventilation branch, so as to ensure the accuracy of the amount of each fault gas introduced, thereby improving the accuracy of the standard oil configuration. Preferably, the oil inlet / suction distributor 13 is arranged at the bottom of the oil storage cylinder 12, and the oil inlet / suction distributor 13 includes an inlet arranged on the axis of the oil storage cylinder 12, and four inlets arranged along the circumference of the oil storage cylinder 12, so as to ensure that the oil sealing device 6 can slide upward as a whole, and avoid the occurrence of deviation during the sliding process to affect its sealing effect.

[0052] The oil return sections of the air intake pipeline 200, the trace water intake pipeline 300 and the heat circulation pipeline 400 are connected to the input end of the delivery pump 1, and the oil return section is provided with an oil return solenoid valve 17. In this embodiment, the components in all pipelines are input through a delivery pump 1, which can effectively reduce the investment in the delivery pump 1, thereby simplifying the structure and reducing the cost of the device.

[0053] The connecting pipeline between the delivery pump 1 and the oil inlet / intake distributor 13 is provided with an oil inlet solenoid valve 16 and a check valve 29; the circulation section of the heat circulation pipeline 400 is provided with a heater 4, the connecting pipeline between the output end of the delivery pump 1 and the heater 4 is provided with a heater inlet solenoid valve 22 and a heater inlet manual regulating valve 23, and the connecting pipeline between the heater 4 and the oil storage space is provided with a heater outlet solenoid valve 24. In this embodiment, the components are mixed and then circulated through the heat circulation pipeline 400, and the fusion speed and fusion quality are improved during the circulation process. At the same time, the heater 4 can effectively heat the standard oil to ensure that the temperature of the standard oil is at the optimal temperature for detection.

[0054] The oil return section of the heat circulation pipeline 400 is provided with an oil extraction branch, and the oil extraction branch is provided with an oil extraction manual valve 21. In this embodiment, after the standard oil is configured, it can be stored in the oil storage cylinder 12, and when in use, the oil extraction manual valve 21 is opened to extract oil through the oil extraction branch. Thus, the standard oil configuration and storage are integrated through this device.

[0055] The oil seal device 6 is slidably arranged in the oil storage cylinder 12, and the oil seal device 6 can slide along the axis direction of the oil storage cylinder 12; the oil storage cylinder 12 is provided with an upper limit 15 and a lower limit 14 for limiting the sliding range of the oil seal device 6. In this embodiment, the setting of the oil seal device 6 can effectively prevent external air from invading the configuration space on the one hand, and can prevent the fault gas dissolved in the standard oil from escaping into the air and causing pollution on the other hand. The setting of the upper limit 14 and the lower limit 15 can effectively control the movement range of the oil seal device 6 to prevent damage to the internal structure of the device.

[0056] A safety valve 11 is also provided on the wall of the oil storage cylinder 12 above the upper limit position 15. In this embodiment, the oil seal device 6 may not seal tightly or other accidents may occur during the use of the device, resulting in oil appearing on the upper part of the oil seal device 6. The oil appearing on the upper part will not only affect the configuration effect of the benchmark oil and the judgment of the configuration amount, but also cause pollution to the device. Therefore, once oil appears on the upper part of the oil seal device 6, it needs to be discharged in time through the safety valve 11.

[0057] The oil seal device 6 is provided with a top exhaust port, and the top exhaust port is matched with an exhaust pipe 7, and an exhaust solenoid valve 30 is arranged on the exhaust pipe. In this embodiment, the exhaust pipe 7 is mainly used to discharge the internal gas when the oil is introduced into the oil storage cylinder 1, so as to avoid the situation that the oil seal device 6 cannot withstand the excessive pressure and is damaged due to excessive internal pressure.

[0058] The oil storage space is provided with a temperature sensor 8, a low liquid level switch 9 and a pressure sensor 10, and the temperature sensor 8, the low liquid level switch 9 and the pressure sensor 10 are all electrically connected to the controller 5. In this embodiment, the temperature and pressure inside can be monitored in real time by the temperature sensor 8 and the pressure sensor 10, so as to better judge the configuration status, so as to timely deal with the problems arising in the configuration process. The low liquid level switch 9 is provided to prevent the delivery pump 1 from idling and damaging the machine, and the delivery pump 1 is not restricted by the low liquid level switch 9 when inputting oil into the oil storage cylinder 12.

[0059] Example 2

[0060] An automated transformer oil standard oil configuration method, using the automated transformer oil standard oil configuration device described in Example 1 to configure standard oil, the operation method is as follows:

[0061] Input the transformer oil, and pass the transformer oil into the oil storage cylinder 12 through the delivery pump 1, and push the oil seal device 6 to slide upward;

[0062] Oil heating circulation, circulating the oil through the heat circulation pipeline 400, and heating the oil during circulation;

[0063] Fault gas and trace moisture are input, and the fault gas and trace moisture are introduced into the oil through the air intake pipeline 200 and the trace water intake pipeline 300 to complete the fusion.

[0064] All valves of the device are in closed state before working. The specific operation method is as follows:

[0065] When the variable pressure oil input operation is performed, the controller 5 controls to open the oil inlet filter pressure reducing valve 26, the oil supply solenoid valve 20, the oil inlet solenoid valve 16, the check valve 29 and the exhaust solenoid valve 30 and starts the delivery pump 1. The oil is pumped into the oil storage cylinder 12 through the delivery pump 1. When the oil seal device 6 slides to the upper limit 15 and oil comes out of the exhaust pipe 7, the oil input is stopped;

[0066] When the oil heating circulation operation is performed, the controller 5 controls the opening of the oil return solenoid valve 17, the heater inlet solenoid valve 22, the heater inlet manual regulating valve 23 and the heater outlet solenoid valve 24, starts the heater 4 and the delivery pump 1, and the oil circulates in the heat circulation pipeline 400 and is heated by the heater 4;

[0067] When the fault gas input operation is performed, the controller 5 controls the opening of the air inlet filter pressure reducing valve 25, the air supply solenoid valve 18 and the air supply check valve 31, and the fault gas passes through the air intake pipeline 200 into the heat circulation pipeline 400 and mixes with the circulating oil;

[0068] When the trace water input operation is performed, the controller 5 controls the opening of the trace water filling solenoid valve 27, and configures a quantitative water supply device on the sealing plug 28, and the trace water is passed into the heat circulation pipeline 400 through the trace water inlet pipeline 300 and mixed with the circulating oil;

[0069] When the oil level in the oil storage cylinder 12 drops to the alarm level and triggers the low level switch 9, the controller 5 controls the delivery pump 1 to force shutdown. In this embodiment, there is no clear regulation on the order of introducing oil, fault gas and water vapor, but it is preferred to introduce oil first to lift the oil seal device 6 upward to the upper limit 15, thereby forming a configuration space, and then connect the heat circulation pipeline 400 to circulate and heat the oil, and in the process of circulation, various required fault gases and water vapor are introduced into the circulating oil in sequence, and finally the configuration of the standard oil is completed.

[0070] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic transformer oil standard oil configuration device, characterized in that: The invention comprises a delivery pump (1), an oil sealing device (6), an oil storage cylinder (12), an oil inlet and outlet distributor (13), an oil inlet pipeline (100), an air inlet pipeline (200), a trace water inlet pipeline (300) and a heat circulation pipeline (400), wherein the oil sealing device (6) is arranged in the oil storage cylinder (12), and the oil sealing device (6) and the oil storage cylinder (12) enclose an oil storage space; The output end of the delivery pump (1) is connected to the oil inlet and outlet distributor (13) and delivers the standard oil configuration raw material into the oil storage cylinder (12); The oil inlet pipeline (100), the air inlet pipeline (200) and the trace water inlet pipeline (300) are all in communication with the input end of the delivery pump (1); The heat circulation pipeline (400) comprises an oil return section and a circulation section, one end of the oil return section is in communication with the oil inlet and suction distributor (13), the other end of the oil return section is in communication with the input end of the delivery pump (1), one end of the circulation section is in communication with the output end of the delivery pump (1), the other end of the circulation section extends to the oil sealing device (6) and is in communication with the oil preparation and storage space, and an oil inlet solenoid valve (16) and a check valve (29) are provided between the connection point between the oil return section and the oil inlet and suction distributor (13) and the connection point between the circulation section and the output end of the delivery pump (1); Each pipeline is provided with one or more solenoid valves for controlling the on-off of the pipeline, and each solenoid valve is electrically connected to a controller (5); The oil return sections of the air intake pipeline (200), the trace water intake pipeline (300) and the heat circulation pipeline (400) are connected to each other and then connected to the input end of the delivery pump (1), and an oil return solenoid valve (17) is provided on the oil return section; An oil inlet solenoid valve (16) and a check valve (29) are provided on the communication pipeline between the delivery pump (1) and the oil inlet and suction distributor (13); The circulation section of the heat circulation pipeline (400) is provided with a heater (4); a heater inlet solenoid valve (22) and a heater inlet manual regulating valve (23) are provided on the communication pipeline between the output end of the delivery pump (1) and the heater (4); and a heater outlet solenoid valve (24) is provided on the communication pipeline between the heater (4) and the oil storage space; When the oil heating circulation operation is performed, the controller (5) controls the opening of the oil return solenoid valve (17), the heater inlet solenoid valve (22), the heater inlet manual regulating valve (23) and the heater outlet solenoid valve (24), and starts the heater (4) and the delivery pump (1), so that the oil circulates in the heat circulation pipeline (400) and is heated by the heater (4).

2. The automatic transformer oil standard configuration device according to claim 1 is characterized in that: The oil inlet pipeline (100) is provided with an oil inlet filter pressure reducing valve (26), an oil mass flow controller (2) and an oil supply solenoid valve (20) in sequence from the oil inlet end; The air intake pipeline (200) is provided with an air intake filter pressure reducing valve (25), a gas mass flow controller (3), an air supply solenoid valve (18) and an air supply check valve (31) in sequence from one end of the air intake; A gas exchange branch is provided between the gas mass flow controller (3) and the gas supply solenoid valve (18), and a gas replacement solenoid valve (19) is provided on the gas exchange branch; The micro-amount water inlet pipeline (300) is provided with a micro-amount water filling solenoid valve (27), the water inlet end of the micro-amount water inlet pipeline (300) is provided with a sealing plug (28), and a quantitative water supply device is provided inside the sealing plug.

3. The automatic transformer oil standard configuration device according to claim 1 is characterized in that: The oil return section of the heat circulation pipeline (400) is provided with an oil intake branch, and the oil intake branch is provided with an oil intake manual valve (21).

4. The automatic transformer oil standard configuration device according to claim 1, characterized in that: The oil sealing device (6) is slidably disposed in the oil storage cylinder (12), and the oil sealing device (6) can slide along the axial direction of the oil storage cylinder (12); An upper limit position (15) and a lower limit position (14) for limiting the sliding range of the oil sealing device (6) are arranged in the oil storage cylinder (12).

5. The automatic transformer oil standard configuration device according to claim 4 is characterized in that: A safety valve (11) is also provided on the wall of the oil storage cylinder (12) above the upper limit position (15); The oil sealing device (6) is provided with a top exhaust port, and the top exhaust port is matched with an exhaust pipeline (7), and an exhaust solenoid valve (30) is arranged on the exhaust pipeline.

6. The automatic transformer oil standard configuration device according to claim 1, characterized in that: A temperature sensor (8), a low liquid level switch (9) and a pressure sensor (10) are arranged in the oil storage space, and the temperature sensor (8), the low liquid level switch (9) and the pressure sensor (10) are all electrically connected to the controller (5).

7. An automated transformer oil standard oil configuration method, characterized in that: The automatic transformer oil standard configuration device according to any one of claims 1 to 6 is used, and the operation method is as follows: Inputting the variable pressure oil, the variable pressure oil is introduced into the oil storage cylinder (12) through the delivery pump (1), and the oil seal device (6) is pushed to slide upward; Oil heating circulation, circulating the oil through a heat circulation pipeline (400) and heating the oil during circulation; Fault gas and trace water are input, and the fault gas and trace water are introduced into the oil through the air intake pipeline (200) and the trace water intake pipeline (300) to complete the fusion.

8. The method for configuring an automated transformer oil standard according to claim 7, characterized in that: All valves of the device are in closed state before working. The specific operation method is as follows: When the variable pressure oil input operation is performed, the controller (5) controls the opening of the oil inlet filter pressure reducing valve (26), the oil supply solenoid valve (20), the oil inlet solenoid valve (16), the check valve (29) and the exhaust solenoid valve (30) and starts the delivery pump (1). The oil is pumped into the oil storage cylinder (12) through the delivery pump (1). When the oil seal device (6) slides to the upper limit position (15) and oil comes out of the exhaust pipe (7), the oil input is stopped. When the oil heating circulation operation is performed, the controller (5) controls the opening of the oil return solenoid valve (17), the heater inlet solenoid valve (22), the heater inlet manual regulating valve (23) and the heater outlet solenoid valve (24), starts the heater (4) and the delivery pump (1), and the oil circulates in the heat circulation pipeline (400) and is heated by the heater (4); When the fault gas input operation is performed, the controller (5) controls the opening of the air inlet filter pressure reducing valve (25), the air supply solenoid valve (18) and the air supply check valve (31), and the fault gas is passed into the heat circulation pipeline (400) through the air intake pipeline (200) and mixed with the circulating oil; When a trace amount of water is input, the controller (5) controls the opening of the trace amount of water filling solenoid valve (27), and a quantitative water supply device is arranged on the sealing plug (28), and the trace amount of water is passed into the heat circulation pipeline (400) through the trace amount of water inlet pipeline (300) and mixed with the circulating oil; When the oil level in the oil storage cylinder (12) drops to the alarm level and the low level switch (9) is triggered, the controller (5) controls the delivery pump (1) to be forced to stop.

Citation Information

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