Oil-gas separation device for insulating oil

Abstract

The utility model discloses an oil-gas separation device for insulating oil, which comprises an oil-gas separator, a mounting block is arranged on the inner wall of the oil-gas separator, a positioning block is clamped below the mounting block through a clamping mechanism, a filter screen is arranged on the mounting block, and a gas filtering cavity and an oil-gas separation cavity are respectively arranged above and below the filter screen. An oil-gas separation core is arranged in the oil-gas separation cavity and connected with the bottom of the positioning block, a cover plate is connected to the top of the oil-gas separator, an exhaust port is formed in the middle of the top face of the cover plate, a gas filtering net cylinder is arranged on the exhaust port, an oil pumping pipe is arranged in the exhaust port, and an oil filtering assembly is arranged in the oil-gas separation core. According to the oil-gas separator, the filter screen is used for primarily filtering the insulating oil, impurities in the insulating oil are filtered, the insulating oil which is primarily filtered falls onto the partition plate and flows onto the oil filter screen, and the oil filter screen is used for filtering the separated oil again, so that particle impurities in the insulating oil are less.

Description

Technical Field

[0001] This utility model relates to the field of oil-gas separation technology for insulating oil, and in particular to an oil-gas separation device for insulating oil. Background Technology

[0002] Large power transformers are essential for connecting power grids of different voltage levels in a power system. Therefore, the reliability of transformer operation is crucial to the safety of the entire power system and plays a vital role in the stable and sustainable development of the power grid. If a transformer fails, it will pose a serious threat to the safe and stable operation of the entire power system. Thus, insulating oil testing, which is used to determine whether a transformer is operating normally, plays a vital role in the safe operation of the entire power system. Continuous experiments have shown that the gas present in the transformer's insulating oil can be analyzed to detect potential faults in the transformer, especially those with strong destructive capabilities, such as transformer overheating, arcing, and reduced insulation.

[0003] Existing devices for separating oil and gas in transformer insulating oil often fail to filter the insulating oil being tested. Large particles in the insulating oil can clog the separator, affecting its normal operation. Furthermore, impurities and sediments in the mixed gas cannot be filtered out, significantly reducing the practicality and convenience of multi-stage oil-gas separation devices. Utility Model Content

[0004] The purpose of this invention is to solve the technical problems existing in the prior art and to provide an oil-gas separation device for insulating oil.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: an oil-gas separation device for insulating oil, comprising an oil-gas separator, an installation block provided on the inner wall of the oil-gas separator, a positioning block being snapped into place below the installation block by a snap-fit ​​mechanism, a filter screen provided on the installation block, a gas filtration chamber and an oil-gas separation chamber being located above and below the filter screen respectively, an oil-gas separation core being provided inside the oil-gas separation chamber, the oil-gas separation core being connected to the bottom of the positioning block, a cover plate being movably connected to the top of the oil-gas separator, an exhaust port being provided in the middle of the top surface of the cover plate, a gas filter screen located inside the gas filtration chamber being provided on the exhaust port, a fixing block being provided on the gas filter screen, the fixing block being fixed to the cover plate by screws, an oil extraction pipe being provided inside the exhaust port, the oil extraction pipe passing through the gas filter screen and the filter screen and extending into the bottom end of the oil-gas separation core, an oil filter assembly being provided inside the oil-gas separation core, and an exhaust assembly being provided on the side wall of the oil-gas separator.

[0006] Preferably, the locking mechanism includes a limiting block movably connected inside the mounting block, a connecting block fixedly connected to the lower surface of the limiting block, a positioning block fixedly connected to the lower surface of the connecting block, a spring fixedly connected inside the connecting block, a positioning rod fixedly connected to one side of the spring, a push rod movably connected to the end of the positioning rod away from the spring, and a pressing plate fixedly connected to the lower surface of the push rod.

[0007] Preferably, the oil filtration assembly includes multiple partitions fixedly connected to the left and right sides of the inner cavity of the oil-gas separator core. The partitions on the left and right sides are staggered. An oil filter screen is fixedly connected to the lower surface of the partition. The length of the partition is less than the length of the oil-gas separator core.

[0008] Preferably, a fixing rod is provided at the top of the oil-gas separator core, the middle part of the fixing rod is fixedly connected to the surface of the oil sucker pipe, the upper end of the oil sucker pipe is connected to a connecting pipe through a flange, the connecting pipe is connected to an oil pump, and one end of the oil sucker pipe that extends into the oil-gas separator core is slidably connected to a partition plate.

[0009] Preferably, the air extraction assembly includes an air pump fixedly installed outside the oil-gas separator, an air extraction pipe and an air outlet pipe installed on the air pump, an air guide pipe connected to the air extraction pipe, the air guide pipe communicating with the oil-gas separation chamber, and the air outlet pipe communicating with the air filter chamber.

[0010] Preferably, the cover plate is provided with connecting bolts, the oil-gas separator is provided with a threaded seat that mates with the connecting bolts, the outside of the oil-gas separator is connected to an oil inlet pipe, the inlet of the oil inlet pipe is located above the filter screen, and a door for sealing is provided directly in front of the oil-gas separator.

[0011] The beneficial effects of this utility model are:

[0012] 1. In the oil inlet process, the present invention uses a filter screen to perform initial filtration of the insulating oil, removing impurities from the insulating oil. The insulating oil that falls onto the partition after the initial filtration flows along the partition to the oil filter screen, which filters the separated oil again and removes impurities, resulting in fewer particulate impurities in the separated insulating oil. Furthermore, the gas separated by the oil-gas separator is filtered by the air extraction component and the air filter screen, reducing the percentage of oil carried in the discharged gas and improving the oil-gas separation effect and efficiency of the insulating oil.

[0013] 2. This utility model enables the disassembly of the filter screen through the setting of the snap-fit ​​mechanism, which allows for cleaning or replacement of the filter screen, making the disassembly of the filter screen more convenient and quick, and improving the practicality and convenience of this utility model. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0015] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0016] Figure 2 This is an enlarged schematic diagram of the structure at point A of this utility model;

[0017] Figure 3 This is an external schematic diagram of the overall structure of this utility model.

[0018] Attached image captions:

[0019] 1-Oil-gas separator, 2-Suction pipe, 3-Air pump, 4-Exhaust pipe, 5-Cover plate, 6-Filter screen cylinder, 7-Exhaust port, 8-Suction pipe, 9-Connecting pipe, 10-Flange, 11-Fixing block, 12-Filter screen, 13-Inlet pipe, 14-Mounting block, 15-Positioning block, 16-Fixing rod, 17-Oil-gas separator core, 18-Baffle plate, 19-Filter screen, 20-Spring, 21-Connecting block, 22-Limiting block, 23-Push rod, 24-Press plate, 25-Positioning rod, 26-Connecting bolt, 27-Threaded seat. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Reference Figures 1-3 In a preferred embodiment of this utility model, an oil-gas separation device for insulating oil includes an oil-gas separator 1. An installation block 14 is provided on the inner wall of the oil-gas separator 1. A positioning block 15 is snapped into the lower part of the installation block 14 by a snap-fit ​​mechanism. A filter screen 12 is provided on the installation block 14. The snap-fit ​​mechanism includes a limiting block 22 movably connected inside the installation block 14. A connecting block 21 is fixedly connected to the lower surface of the limiting block 22. The positioning block 15 is fixedly connected to the lower surface of the connecting block 21. A spring 20 is fixedly connected inside the connecting block 21. A positioning rod 25 is fixedly connected to one side of the spring 20. A push rod 23 is movably connected to the end of the positioning rod 25 away from the spring 20. A pressing plate 24 is fixedly connected to the lower surface of the push rod 23.

[0025] Furthermore, the cover plate 5 is provided with connecting bolts 26, and the oil-gas separator 1 is provided with threaded seats 27 that mate with the connecting bolts 26. An oil inlet pipe 13 is connected to the outside of the oil-gas separator 1, and the inlet of the oil inlet pipe 13 is located above the filter screen 12. A door for sealing is provided directly in front of the oil-gas separator 1.

[0026] Specifically, when the oil-gas separator 1 separates the insulating oil into oil and gas and the filter screen 12 needs to be disassembled, the door of the oil-gas separator 1 is opened, and the push plate 24 is pressed towards the center. The push plate 24 drives the push rod 23 to move, and the push rod 23 pushes the positioning rod 25. The positioning rod 25 is pushed into the connecting block 21 and squeezes the spring 20. When the positioning rod 25 is fully inserted into the connecting block 21, the mounting block 14 can be pulled upward, thereby realizing the disassembly of the filter screen 12. The filter screen 12 can be cleaned or replaced, making the disassembly of the filter screen 12 more convenient and quick, and improving the practicality and convenience of this utility model.

[0027] In this embodiment, the filter screen 12 has an air filtration chamber above it and an oil-gas separation chamber below it. An oil-gas separation core 17 is provided in the oil-gas separation chamber. The oil-gas separation core 17 is connected to the bottom of the positioning block 15. A cover plate 5 is movably connected to the top of the oil-gas separator 1. An exhaust port 7 is provided in the middle of the top surface of the cover plate 5. An air filter cylinder 6 located in the air filtration chamber is provided on the exhaust port 7. A fixing block 11 is provided on the air filter cylinder 6. The fixing block 11 is fixed to the cover plate 5 by screws. An oil extraction pipe 8 is provided in the exhaust port. The oil extraction pipe 8 passes through the air filter cylinder 6 and the filter screen 12 and extends into the bottom end of the oil-gas separation core 17. An oil filter assembly is provided inside the oil-gas separation core 17. The oil filter assembly includes multiple partitions 18 fixedly connected to the left and right sides of the inner cavity of the oil-gas separation core 17. The partitions 18 on the left and right sides are staggered. An oil filter screen 19 is fixedly connected to the lower surface of the partition 18. The length of the partition 18 is less than the length of the oil-gas separation core 17.

[0028] Furthermore, a fixing rod 16 is provided at the top of the oil-gas separator core 17. The middle part of the fixing rod 16 is fixedly connected to the surface of the oil extraction pipe 8. The upper end of the oil extraction pipe 8 is connected to a connecting pipe 9 through a flange 10. The connecting pipe 9 is connected to an oil pump. One end of the oil extraction pipe 8 that extends into the oil-gas separator core 17 is slidably connected to a partition plate 18.

[0029] Specifically, oil is first introduced through the oil inlet pipe 13. During the oil introduction process, the filter screen 12 plays a primary filtration role in the insulating oil, filtering out impurities in the insulating oil and thus preventing impurities from clogging the oil-gas separator core 17. The insulating oil after primary filtration enters the oil-gas separator core 17, where oil and gas are separated. The separated gas is then extracted by the suction assembly and discharged into the gas filtration chamber. The gas rises, is filtered through the gas filter cylinder 6, and is then discharged through the exhaust port 7. The oil separated by the oil-gas separator core 17 falls onto the partition plate 18. The oil falling onto the partition plate 18 flows down the partition plate to the oil filter screen 19, where the oil filter screen 19 filters the separated oil again and removes impurities. Finally, the oil is extracted through the oil extraction pipe 8.

[0030] In this embodiment, an air extraction assembly is provided on the side wall of the oil-gas separator 1. The air extraction assembly includes an air pump 3 fixedly installed on the outside of the oil-gas separator 1. An air extraction pipe 2 and an air outlet pipe 4 are provided on the air pump 3. An air guide pipe is connected to the air extraction pipe 2, which is connected to the oil-gas separation chamber, and the air outlet pipe 4 is connected to the air filter chamber.

[0031] Specifically, after the oil-gas separator core 17 has separated the oil and gas, the air pump 3 is started. The air pump 3 extracts the gas through the air extraction pipe 2 and the air guide pipe, and then discharges it into the air filter chamber through the air outlet pipe 4 for filtration and discharge.

[0032] In the oil feeding process, the filter screen 12 plays a primary filtration role on the insulating oil, filtering out impurities in the insulating oil. The insulating oil that falls onto the partition plate 18 after the primary filtration flows down the partition plate 18 to the oil filter screen 19. The oil filter screen 19 filters the separated oil again and removes impurities, resulting in fewer particulate impurities in the separated insulating oil. Furthermore, the gas separated by the oil-gas separator core 17 is filtered by the air extraction component and the air filter screen 6, which reduces the percentage of oil carried in the discharged gas, thereby improving the oil-gas separation effect and efficiency of the insulating oil.

[0033] This utility model enables the disassembly of the filter screen 12 through the setting of the snap-fit ​​mechanism, so that the filter screen 12 can be cleaned or replaced, making the disassembly of the filter screen 12 more convenient and quick, and improving the practicality and convenience of this utility model.

[0034] Without causing conflict, those skilled in the art can freely combine and use the above-mentioned additional technical features.

[0035] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. An oil and gas separation device for insulating oil, characterized by: The oil-gas separator is provided with a mounting block on the inner wall, a positioning block is clamped below the mounting block through a clamping mechanism, a filter screen is arranged on the mounting block, a gas filtering cavity and an oil-gas separation cavity are arranged above and below the filter screen respectively, an oil-gas separation core is arranged in the oil-gas separation cavity, the oil-gas separation core is connected with the bottom of the positioning block, a cover plate is movably connected to the top of the oil-gas separator, a gas outlet is arranged in the middle of the top surface of the cover plate, a gas filtering screen cylinder is arranged in the gas outlet and located in the gas filtering cavity, a fixing block is arranged on the gas filtering screen cylinder, the fixing block is fixed on the cover plate through screws, an oil pumping pipe is arranged in the gas outlet and extends into the bottom end of the oil-gas separation core through the gas filtering screen cylinder and the filter screen, an oil filtering assembly is arranged in the oil-gas separation core, and a gas pumping assembly is arranged on the side wall of the oil-gas separator.

2. The oil and gas separation device for insulating oil according to claim 1, characterized in that: The clamping mechanism comprises a limiting block movably connected in the mounting block, a connecting block fixedly connected to the lower surface of the limiting block, a positioning block fixedly connected to the lower surface of the connecting block, a spring fixedly connected in the connecting block, a positioning rod fixedly connected to one side of the spring, and a push rod movably connected to the end of the positioning rod away from the spring, and a pressing plate fixedly connected to the lower surface of the push rod.

3. The oil and gas separation device for insulating oil according to claim 1, characterized in that: The oil filtering assembly comprises a plurality of baffle plates fixedly connected to the inner cavities of the left and right sides of the oil-gas separation core, the baffle plates on the left and right sides are staggered, the lower surface of the baffle plate is fixedly connected with an oil filtering screen, and the length of the baffle plate is less than the length of the oil-gas separation core.

4. An oil and gas separation device for insulating oil according to claim 3, characterized in that: A fixing rod is arranged at the top of the oil-gas separation core, the middle of the fixing rod is fixedly connected with the surface of the oil pumping pipe, a butt pipe is connected to the upper end of the oil pumping pipe through a flange, the butt pipe is connected with an oil pumping pump, and the end of the oil pumping pipe extending into the oil-gas separation core is slidably connected with the baffle plate.

5. The oil and gas separation device for insulating oil according to claim 1, characterized in that: The gas pumping assembly comprises a gas pump fixedly arranged outside the oil-gas separator, a gas pumping pipe and a gas outlet pipe are arranged on the gas pump, the gas pumping pipe is connected with a gas guide pipe, the gas guide pipe is communicated with the oil-gas separation cavity, and the gas outlet pipe is communicated with the gas filtering cavity.

6. The oil and gas separation device for insulating oil according to claim 1, characterized in that: A connecting bolt is arranged on the cover plate, a threaded seat matched with the connecting bolt is arranged on the oil-gas separator, an oil inlet pipe is communicated outside the oil-gas separator, the pipe opening of the oil inlet pipe is located above the filter screen, and a door for sealing is arranged in front of the oil-gas separator.

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