A transformer oil internal dissolved gas detection device

Abstract

The utility model discloses a kind of transformer oil dissolved gas detection devices, comprising: detection box, the inside fixed connection of detection box has support, gas detection component is provided on support, gas detection component is used to form the detection of gas in transformer oil;Extension frame, extension frame is fixedly connected at the top of detection box, the top fixed connection of extension frame has oil pump, the output end fixed connection of oil pump has oil supply pipe, the input end fixed connection of oil pump has oil pipe A;Carry frame, carry frame is fixedly connected at one end of extension frame, the top fixed connection of carry frame has oil pipe B, the utility model relates to transformer oil dissolved gas detection technical field;The utility model is through the structure cooperation of locking component, can realize the effective interception of particulate matter in oil in the process of transformer oil transmission, avoid affecting subsequent oil gas separation effect.

Description

Technical Field

[0001] This utility model relates to the field of dissolved gas detection technology in transformer oil, specifically a device for detecting dissolved gases in transformer oil. Background Technology

[0002] Transformer oil is an insulating oil widely used in power transformers, serving multiple functions such as insulation, cooling, arc extinguishing, and preventing oxidation of internal transformer components.

[0003] During operation, transformer oil produces dissolved gases due to electrical, thermal, and chemical reactions. These gases can serve as indicators of the transformer's internal condition. By analyzing the types and concentrations of these gases using gas detection devices, the transformer's operating status can be determined and potential faults can be predicted.

[0004] However, in the application of traditional gas detection devices, the lack of effective oil filtration measures allows particulate matter in the oil to enter the device along with the oil, affecting subsequent oil-gas separation.

[0005] Therefore, this utility model provides a device for detecting dissolved gas in transformer oil to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a device for detecting dissolved gases in transformer oil, thus solving the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a transformer oil dissolved gas detection device, comprising:

[0008] A detection box, wherein a support is fixedly connected inside the detection box, and a gas detection component is installed on the support. The gas detection component is used to detect gas in transformer oil.

[0009] An extension frame is fixedly connected to the top of the testing box. An oil pump is fixedly connected to the top of the extension frame. An oil supply pipe is fixedly connected to the output end of the oil pump, and an oil inlet pipe A is fixedly connected to the input end of the oil pump.

[0010] The mounting frame is fixedly connected to one end of the extension frame. An oil inlet pipe B is fixedly connected to the top of the mounting frame. Locking components are installed at the close ends of the oil inlet pipe B and the oil inlet pipe A. An oil filter component is installed between the oil inlet pipe A and the oil inlet pipe B through the locking components.

[0011] Preferably, the gas detection component includes:

[0012] An oil-gas separator is fixedly connected to the top of one side of a support, and the end of the oil supply pipe away from the oil pump is connected to the oil-gas separator. A partition plate and an ultrasonic generator are fixedly connected inside the oil-gas separator. The ultrasonic generator is located below the partition plate and is used to separate gas from transformer oil.

[0013] A metering box is fixedly connected to the top of the other side of the support. A gas guide pipe is fixedly connected to the top of the metering box, and the end of the gas guide pipe away from the metering box is connected to the oil-gas separator.

[0014] A carrier gas cylinder is fixedly connected to the bottom end of the other side of the support. A gas supply pipe is fixedly connected to the top end of the carrier gas cylinder, and the end of the gas supply pipe away from the carrier gas cylinder is connected to the metering box.

[0015] The detection tube is fixedly connected to the top of the other side of the support. A gas supply tube is fixedly connected to the top of the detection tube. The end of the gas supply tube away from the detection tube is connected to the metering box. A gas detection sensor is fixedly connected to the detection tube.

[0016] Preferably, the oil filter assembly includes:

[0017] An oil filter cartridge has multiple oil filter screens fixedly connected inside. An assembly tube is fixedly connected to both the top and bottom of the oil filter cartridge, and a locking plate is fixedly connected to both sides of the assembly tube.

[0018] Preferably, the locking component includes:

[0019] A positioning ring is fixedly connected to oil inlet pipe A or oil inlet pipe B. One end of the positioning ring is rotatably connected to a central shaft. Both ends of the central shaft are fixedly connected to guide rods. The end of the guide rod away from the central shaft is fixedly connected to a locking rod, and the locking rod is engaged with a locking plate.

[0020] Preferably, a return oil pipe is fixedly connected to one side of the oil-gas separator, and the return oil pipe extends through the test box to the outside of the test box.

[0021] Preferably, the air guide pipe, air supply pipe and air transmission pipe are all equipped with solenoid valves.

[0022] Preferably, the locking rod has an arc-shaped structure, and the locking plate has an arc-shaped hole in the middle, with the locking rod being snapped into the arc-shaped hole.

[0023] Preferably, the outer side of the central shaft has a threaded section, and a stop plate is threadedly connected to the outer side of the threaded section.

[0024] Beneficial effects

[0025] This invention provides a device for detecting dissolved gases in transformer oil. Compared with the prior art, it has the following advantages:

[0026] This transformer oil dissolved gas detection device, through the structural cooperation of the locking component, can effectively intercept particulate matter in the transformer oil during the transmission process, avoiding affecting the subsequent oil-gas separation effect. In addition, with the setting of the locking component, the oil filter component can be quickly disassembled without affecting the stable application of the oil filter component, greatly ensuring the convenience of the overall application.

[0027] This transformer oil dissolved gas detection device, through the structural coordination of the gas detection components, can stably achieve the separation of oil and gas in transformer oil, thereby ensuring the accuracy of subsequent gas data. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the entire utility model;

[0029] Figure 2 This is the front view of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the gas detection component of this utility model;

[0031] Figure 4 This is a schematic diagram of the internal structure of the oil-gas separator of this utility model;

[0032] Figure 5 This is a schematic diagram of the assembly structure of the oil filter cartridge of this utility model;

[0033] Figure 6 This is a schematic diagram of the internal structure of the oil filter cylinder of this utility model;

[0034] Figure 7 This is a schematic diagram of the assembly structure of the locking rod of this utility model.

[0035] In the diagram: 1. Detection box; 2. Support frame; 3. Gas detection assembly; 4. Extension frame; 5. Oil pump; 6. Oil supply pipe; 7. Oil inlet pipe A; 8. Mounting frame; 9. Oil inlet pipe B; 10. Locking assembly; 11. Oil filter assembly; 12. Oil-gas separator; 13. Divider plate; 14. Ultrasonic generator; 15. Solenoid valve; 16. Metering tank; 17. Gas guide pipe; 18. Carrier gas cylinder; 19. Gas supply pipe; 20. Gas delivery pipe; 21. Detection tube; 22. Gas detection sensor; 23. Oil filter cylinder; 24. Oil filter screen; 25. Assembly tube; 26. Locking plate; 27. Positioning ring; 28. Central shaft; 29. ​​Guide rod; 30. Locking rod; 31. Threaded section; 32. Stop plate. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example 1:

[0038] Please see Figure 1-7 A device for detecting dissolved gases in transformer oil, comprising:

[0039] The detection box 1 has a support 2 fixedly connected inside it. A gas detection component 3 is installed on the support 2. The gas detection component 3 is used to detect the gas in the transformer oil.

[0040] Extension frame 4 is fixedly connected to the top of the detection box 1. Oil pump 5 is fixedly connected to the top of extension frame 4. Oil supply pipe 6 is fixedly connected to the output end of oil pump 5. Oil inlet pipe A7 is fixedly connected to the input end of oil pump 5.

[0041] Mounting frame 8 is fixedly connected to one end of extension frame 4. An oil inlet pipe B9 is fixedly connected to the top of mounting frame 8. Locking components 10 are installed at the close ends of oil inlet pipe B9 and oil inlet pipe A7. An oil filter component 11 is installed between oil inlet pipe A7 and oil inlet pipe B9 through locking components 10.

[0042] In this embodiment, the gas detection component 3 includes:

[0043] The oil-gas separator 12 is fixedly connected to the top of one side of the bracket 2, and the end of the oil supply pipe 6 away from the oil pump 5 is connected to the oil-gas separator 12. The oil-gas separator 12 is fixedly connected to the partition plate 13 and the ultrasonic generator 14. The ultrasonic generator 14 is located below the partition plate 13 and is used to separate the gas in the transformer oil.

[0044] A metering box 16 is fixedly connected to the top of the other side of the bracket 2. A gas guide pipe 17 is fixedly connected to the top of the metering box 16, and the end of the gas guide pipe 17 away from the metering box 16 is connected to the oil-gas separator 12.

[0045] The gas cylinder 18 is fixedly connected to the bottom of the other side of the bracket 2. The top of the gas cylinder 18 is fixedly connected to the gas supply pipe 19. The end of the gas supply pipe 19 away from the gas cylinder 18 is connected to the metering box 16.

[0046] In this embodiment, the carrier gas cylinder 18 is filled with helium, nitrogen, hydrogen, etc. The carrier gas setting can provide a stable mobile phase for the separated gas.

[0047] The detection tube 21 is fixedly connected to the top of the other side of the bracket 2. The top of the detection tube 21 is fixedly connected to the gas supply tube 20. The end of the gas supply tube 20 away from the detection tube 21 is connected to the metering box 16. The gas detection sensor 22 is fixedly connected to the detection tube 21.

[0048] In this embodiment, solenoid valves 15 are provided on the air guide pipe 17, the air supply pipe 19 and the air delivery pipe 20;

[0049] More specifically, by setting the solenoid valve 15, the opening and closing of the gas guide pipe 17, the gas supply pipe 19 and the gas delivery pipe 20 can be effectively controlled to prevent uncontrollable flow of the medium inside the gas guide pipe 17, the gas carrier cylinder 18 and the gas delivery pipe 20.

[0050] In this embodiment, the oil filter cartridge 23 is a gas chromatograph sensor. The gas chromatograph sensor combines the separation capability of gas chromatography with sensing technology, and can simultaneously detect multiple gas components to make the gas data more accurate.

[0051] Example 2:

[0052] Please see Figure 1-7 This embodiment provides a technical solution based on Embodiment 1: In this embodiment, the oil filter assembly 11 includes:

[0053] Oil filter cylinder 23, multiple oil filter screens 24 are fixedly connected inside the oil filter cylinder 23, and assembly pipes 25 are fixedly connected to the top and bottom of the oil filter cylinder 23. Locking plates 26 are fixedly connected to both sides of the assembly pipes 25.

[0054] In this embodiment, the locking component 10 includes:

[0055] Positioning ring 27 is fixedly connected to oil inlet pipe A7 or oil inlet pipe B9. One end of positioning ring 27 is rotatably connected to central shaft 28. Both ends of central shaft 28 are fixedly connected to guide rod 29. The end of guide rod 29 away from central shaft 28 is fixedly connected to locking rod 30, and locking rod 30 is engaged with locking plate 26.

[0056] In this embodiment, a return oil pipe is fixedly connected to one side of the oil-gas separator 12, and the return oil pipe extends through the detection box 1 to the outside of the detection box 1.

[0057] More specifically, by setting up the return oil pipe, the transformer oil after gas separation inside the oil-gas separator 12 can be discharged from the oil-gas separator 12, avoiding the transformer oil from accumulating inside the bracket 2 for a long time.

[0058] In this embodiment, the locking rod 30 has an arc-shaped structure, and the locking plate 26 has an arc-shaped hole in the middle, and the locking rod 30 is snapped into the arc-shaped hole.

[0059] More specifically, through the structural characteristics of the locking rod 30, the locking rod 30 can be engaged into the arc-shaped hole in a manner that follows the rotation of the guide rod 29, thereby reducing the connection interference between the locking rod 30 and the arc-shaped hole;

[0060] In this embodiment, the outer side of the central shaft 28 has a threaded section 31, and a stop piece 32 is threadedly connected to the outer side of the threaded section 31.

[0061] More specifically, through the structural cooperation of the threaded section 31 and the stop plate 32, when the central shaft 28 is not rotating, rotating the stop plate 32 causes the stop plate 32 to move closer to the positioning ring 27 along the threaded section 31 until the stop plate 32 and the positioning ring 27 are tightly fitted, thereby increasing the frictional force of the rotation of the central shaft 28.

[0062] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0063] Working principle: First, connect the free end of the oil inlet pipe B9 to the oil outlet of the transformer, and connect the free end of the return oil pipe to the return oil pipe of the transformer. Then, start the oil pump 5 to draw the oil in the transformer through the oil inlet pipe B9 and inject it into the oil filter cylinder 23. When the transformer oil flows inside the oil filter cylinder 23, it can intercept impurities in the oil through the oil filter screen 24. The oil after being processed by the oil filter screen 24 will be injected into the oil-gas separator 12 through the oil inlet pipe A7 and the oil supply pipe 6, and carried by the partition plate 13.

[0064] Then, the ultrasonic generator 14 is started. Under the operation of the ultrasonic generator 14, the gas in the oil is separated and enters the metering tank 16 through the gas guide pipe 17. At the same time, the carrier gas in the carrier gas cylinder 18 is injected into the metering tank 16 through the gas supply pipe 19 to provide a stable mobile phase for the gas. After the carrier gas is neutralized with the separated gas, the gas in the metering tank 16 is injected into the detection tube 21 through the gas delivery pipe 20, and the gas data is measured by the gas detection sensor 22.

[0065] Furthermore, if the oil filter screen 24 does not perform well, rotate the central shaft 28 to cause the guide rod 29 to rotate the locking rod 30. When the locking rod 30 moves out of the locking plate 26, the locking plate 26 can be unlocked. Then, the oil filter cylinder 23 can be separated from the oil inlet pipe A7 and the oil inlet pipe B9, and the oil filter screen 24 can be rinsed.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0067] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting dissolved gases in transformer oil, characterized in that: include: The detection box (1) has a support (2) fixedly connected inside it. A gas detection component (3) is provided on the support (2). The gas detection component (3) is used to detect the gas in the transformer oil. An extension frame (4) is fixedly connected to the top of the detection box (1). An oil pump (5) is fixedly connected to the top of the extension frame (4). An oil supply pipe (6) is fixedly connected to the output end of the oil pump (5). An oil inlet pipe A (7) is fixedly connected to the input end of the oil pump (5). The mounting frame (8) is fixedly connected to one end of the extension frame (4). The top end of the mounting frame (8) is fixedly connected to the oil inlet pipe B (9). The oil inlet pipe B (9) and the oil inlet pipe A (7) are both equipped with locking components (10) at their close ends. The oil inlet pipe A (7) and the oil inlet pipe B (9) are connected by the locking components (10) to the oil filter assembly (11).

2. The transformer oil dissolved gas detection device according to claim 1, characterized in that: The gas detection component (3) includes: An oil-gas separator (12) is fixedly connected to the top of one side of the bracket (2), and the end of the oil supply pipe (6) away from the oil pump (5) is connected to the oil-gas separator (12). Inside the oil-gas separator (12), a partition plate (13) and an ultrasonic generator (14) are fixedly connected. The ultrasonic generator (14) is located below the partition plate (13) and is used to separate gas in transformer oil. A metering box (16) is fixedly connected to the top of the other side of the support (2). A gas guide pipe (17) is fixedly connected to the top of the metering box (16), and the end of the gas guide pipe (17) away from the metering box (16) is connected to the oil-gas separator (12). The gas cylinder (18) is fixedly connected to the bottom of the other side of the support (2). The top of the gas cylinder (18) is fixedly connected to the gas supply pipe (19). The end of the gas supply pipe (19) away from the gas cylinder (18) is connected to the metering box (16). The detection tube (21) is fixedly connected to the top of the other side of the support (2). The top of the detection tube (21) is fixedly connected to a gas supply tube (20). The end of the gas supply tube (20) away from the detection tube (21) is connected to the metering box (16). A gas detection sensor (22) is fixedly connected to the detection tube (21).

3. The transformer oil dissolved gas detection device according to claim 1, characterized in that: The oil filter assembly (11) includes: Oil filter cylinder (23), with multiple oil filter screens (24) fixedly connected inside the oil filter cylinder (23), and assembly pipes (25) fixedly connected to the top and bottom of the oil filter cylinder (23), and locking plates (26) fixedly connected to both sides of the assembly pipes (25).

4. The transformer oil dissolved gas detection device according to claim 3, characterized in that: The locking component (10) includes: Positioning ring (27), the positioning ring (27) is fixedly connected to oil inlet pipe A (7) or oil inlet pipe B (9), one end of the positioning ring (27) is rotatably connected to a central shaft (28), both ends of the central shaft (28) are fixedly connected to guide rods (29), the end of the guide rod (29) away from the central shaft (28) is fixedly connected to a locking rod (30), and the locking rod (30) is snapped into the locking plate (26).

5. The transformer oil dissolved gas detection device according to claim 2, characterized in that: The oil-gas separator (12) is fixedly connected to one side of a return oil pipe, and the return oil pipe extends through the detection box (1) to the outside of the detection box (1).

6. The transformer oil dissolved gas detection device according to claim 2, characterized in that: Solenoid valves (15) are installed on the air guide pipe (17), air supply pipe (19) and air transmission pipe (20).

7. The transformer oil dissolved gas detection device according to claim 4, characterized in that: The locking rod (30) has an arc-shaped structure, and the locking plate (26) has an arc-shaped hole in the middle, and the locking rod (30) is snapped into the arc-shaped hole.

8. The transformer oil dissolved gas detection device according to claim 4, characterized in that: The outer side of the central shaft (28) has a threaded section (31), and a stop plate (32) is threadedly connected to the outer side of the threaded section (31).

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