Transformer oil sampling device

Abstract

The utility model discloses a transformer oil sampling device which comprises a supporting plate, an air pump fixedly connected to the upper surface of the supporting plate, an air pipe fixedly connected to the output end of the air pump, an air bag fixedly connected to the end, away from the air pump, of the air pipe, a telescopic pipe fixedly connected to the output end of a hydraulic cylinder, and an oil pump fixedly connected to the lower surface of the hydraulic cylinder. A connecting block is fixedly connected to the end, away from the hydraulic cylinder, of the telescopic pipe, a rotating shaft is fixedly connected to the side surface of the connecting block, a bent pipe is rotatably connected to the side surface of the rotating shaft, a filter plate is fixedly connected to the inner surface of the bent pipe, and through cooperation of the connecting block, the rotating shaft, the bent pipe and a filter screen, impurities can be filtered and intercepted during extraction; impurities can be removed and prevented from affecting analysis results, the impurities are prevented from flowing back into the transformer to protect oil in the transformer, the impurities can also be prevented from blocking equipment, and cleaning is convenient after extraction is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer oil sampling, in particular to a transformer oil sampling device. Background Art

[0002] Transformers are important power equipment. Their working reliability directly affects the operation of the power grid. The quality of the oil in the transformer directly affects the operating life and safety of the transformer. Therefore, it is necessary to sample and test it. However, the existing sampling devices have poor sealing effects when in use, which easily causes impurities or gas to enter. For example, China has disclosed "A transformer oil sampling device", and its application number is: "CN202321492857.0". It sets an oil sampling gun body at the oil outlet of the transformer, so that the sample oil can be quickly and conveniently taken out, and the oil can be squeezed out, which saves time and effort and makes the working process clean and fast. However, it cannot seal the oil outlet when extracting the oil sample, thereby preventing air or other pollutants from entering, and cannot filter and intercept impurities during extraction, thereby preventing them from flowing back into the transformer to protect the oil quality in the transformer, and cannot prevent clogging of the equipment. It is also convenient to clean after the extraction is completed. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a transformer oil sampling device. Through the cooperation of an air pump, an air pipe and an air bag, the oil port can be sealed when extracting the oil sample. After sealing, a certain oil pressure can be maintained, which is conducive to the smooth removal of the oil sample and can prevent air or other pollutants from entering, thereby ensuring the quality of the oil in the transformer. Through the cooperation of a connecting block, a rotating shaft, a bent pipe and a filter screen, impurities can be filtered and intercepted during extraction, and the impurities can be removed to prevent them from affecting the analysis results, preventing them from flowing back into the transformer to protect the oil quality in the transformer, and preventing them from clogging the equipment. After the extraction is completed, it is convenient to clean.

[0004] The utility model also provides a transformer oil sampling device, comprising: a support plate, an air pump fixedly connected to an upper surface of the support plate, an air pipe fixedly connected to an output end of the air pump, an air bag fixedly connected to an end of the air pipe remote from the air pump; a hydraulic cylinder, a telescopic tube fixedly connected to an output end of the hydraulic cylinder, an oil pump fixedly connected to a lower surface of the hydraulic cylinder, a connecting block fixedly connected to an end of the telescopic tube remote from the hydraulic cylinder, a rotating shaft fixedly connected to a side surface of the connecting block, a bending tube rotatably connected to a side surface of the rotating shaft, a filter plate fixedly connected to an inner surface of the bending tube, wherein the air pump, the air pipe, and the air bag cooperate to seal the oil port during oil sampling, and after sealing, a certain oil pressure can be maintained, which is conducive to smooth oil sampling, prevents air or other contaminants from entering, and ensures the quality of the oil in the transformer; and the connecting block, the rotating shaft, the bending tube, and the filter mesh cooperate to filter and intercept impurities during extraction, thereby removing impurities to prevent them from affecting analysis results, preventing them from flowing back into the transformer to protect the oil quality in the transformer, and preventing them from clogging the equipment. After extraction, cleaning is convenient.

[0005] According to the transformer oil sampling device described in the utility model, the air pipe is fixedly connected to the support plate, and the air bag is fixedly connected to the support plate, which can improve the stability of the connection between the device equipment.

[0006] According to the transformer oil sampling device described in the utility model, the oil pump is fixedly connected to the upper surface of the support plate, and the input end of the oil pump is fixedly connected to the telescopic tube, which can ensure effective oil pumping.

[0007] According to the transformer oil sampling device described in the utility model, the airbag is movably connected to the telescopic tube. When the airbag expands, it contacts the telescopic tube and can seal the oil port.

[0008] According to the transformer oil sampling device described in the utility model, the filter plate is located at the bending part of the bending tube, and the direction of the filter plate is vertical, which can effectively intercept and filter impurities.

[0009] According to the transformer oil sampling device described in the utility model, the output end of the oil pump is fixedly connected to an oil outlet pipe, and the oil outlet pipe is externally connected to an oil sample bottle for placing the taken oil sample.

[0010] According to the transformer oil sampling device described in the utility model, the material of the telescopic tube is a polyethylene telescopic oil tube, and the material of the airbag is polyurethane, which can improve the material strength and extend the service life.

[0011] According to the transformer oil sampling device described in the utility model, the upper surface of the support plate is fixedly connected to a support block, and the upper surface of the support block is fixedly connected to a handle, so that the staff can effectively support the equipment.

[0012] Beneficial effects

[0013] 1. Compared with the existing technology, this new transformer oil sampling device can seal the oil port when extracting oil samples through the cooperation of the air pump, air pipe and air bag. After sealing, it can maintain a certain oil pressure, which is conducive to the smooth removal of oil samples and can prevent air or other pollutants from entering, thereby ensuring the quality of the oil in the transformer.

[0014] 2. Compared with the existing technology, this new transformer oil sampling device can filter and intercept impurities during extraction through the cooperation of the connecting block, rotating shaft, bending tube and filter screen, remove impurities to prevent them from affecting the analysis results, prevent them from flowing back into the transformer to protect the oil quality in the transformer, and prevent them from clogging the equipment. It is also easy to clean after the extraction is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a top view of the structure of the transformer oil sampling device of the utility model;

[0017] Figure 2 This is a schematic diagram of the air pump connection structure of the transformer oil sampling device of the utility model;

[0018] Figure 3 This is a schematic diagram of the bending pipe connection structure of the transformer oil sampling device of the present utility model;

[0019] Figure 4 This is a side structural diagram of the transformer oil sampling device of the present utility model.

[0020] Legend:

[0021] 1. Support plate; 2. Hydraulic cylinder; 3. Oil pump; 4. Telescopic tube; 5. Connecting block; 6. Rotating shaft; 7. Bending tube; 8. Filter plate; 9. Air pump; 10. Air pipe; 11. Airbag. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] Reference Figure 1-4The embodiment of the utility model is a transformer oil sampling device, which includes: a support plate 1 for supporting the entire equipment, an air pump 9 is fixedly connected to the upper surface of the support plate 1 for providing gas, an output end of the air pump 9 is fixedly connected to an air pipe 10 for conveying gas, and an end of the air pipe 10 away from the air pump 9 is fixedly connected to an air bag 11 for sealing the oil port; a hydraulic cylinder 2 is used to provide power for the telescopic tube 4, an output end of the hydraulic cylinder 2 is fixedly connected to the telescopic tube 4 for extending to different positions, an oil pump 3 is fixedly connected to the lower surface of the hydraulic cylinder 2 for extracting oil samples, an end of the telescopic tube 4 away from the hydraulic cylinder 2 is fixedly connected to a connecting block 5 for connecting to a rotating shaft 6, a side surface of the connecting block 5 is fixedly connected to a rotating shaft 6 for rotating the direction of the bending tube, and a side surface of the rotating shaft 6 is rotatably connected to a bending tube 7 for extracting oil samples and intercepting impurities, and the inner surface of the bending tube 7 is fixedly connected to a filter plate 8 for filtering impurities.

[0024] The air pipe 10 is fixedly connected to the support plate 1 for fixing the air pipe 10, the air bag 11 is fixedly connected to the support plate 1 for fixing the air bag 11, the oil pump 3 is fixedly connected to the upper surface of the support plate 1 for fixing the oil pump 3, the input end of the oil pump 3 is fixedly connected to the telescopic tube 4 for providing suction, the air bag 11 is movably connected to the telescopic tube 4 for sealing the oil port, the filter plate 8 is located at the bend of the bending tube 7, the direction of the filter plate 8 is vertical, and is used to effectively intercept impurities, the output end of the oil pump 3 is fixedly connected to the oil outlet pipe for transporting the extracted oil sample, the oil outlet pipe is connected to an oil sample bottle for placing the extracted oil sample, the telescopic tube 4 is made of polyethylene telescopic oil pipe, the air bag 11 is made of polyurethane, and is used to improve material strength, the upper surface of the support plate 1 is fixedly connected to a support block, and the upper surface of the support block is fixedly connected to a handle for staff to support the equipment.

[0025] Working principle: When in use, place the support plate 1 on the oil extraction port, then extend the telescopic tube 4 to the pre-oil extraction position or multiple oil extraction positions through the hydraulic cylinder 2, then the air pump 9 provides gas and transports it to the air bag 11 through the air pipe 10 to seal the oil extraction port, then the hydraulic cylinder 2 extracts the oil sample through the bent tube 7, then the filter plate 8 filters the impurities and transports them through the telescopic tube 4, and then transports them to the oil bottle through the oil outlet pipe, then take out the equipment, rotate the bent tube 7 through the rotating shaft 6, and remove the impurities.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A transformer oil sampling device, characterized in that: include: A support plate (1), wherein an air pump (9) is fixedly connected to the upper surface of the support plate (1), an air pipe (10) is fixedly connected to the output end of the air pump (9), and an air bag (11) is fixedly connected to the end of the air pipe (10) away from the air pump (9); A hydraulic cylinder (2), wherein the output end of the hydraulic cylinder (2) is fixedly connected to a telescopic tube (4), the lower surface of the hydraulic cylinder (2) is fixedly connected to an oil pump (3), the end of the telescopic tube (4) away from the hydraulic cylinder (2) is fixedly connected to a connecting block (5), the side surface of the connecting block (5) is fixedly connected to a rotating shaft (6), the side surface of the rotating shaft (6) is rotatably connected to a bending tube (7), and the inner surface of the bending tube (7) is fixedly connected to a filter plate (8).

2. A transformer oil sampling device according to claim 1, characterized in that: The air pipe (10) is fixedly connected to the support plate (1), and the air bag (11) is fixedly connected to the support plate (1).

3. A transformer oil sampling device according to claim 1, characterized in that: The oil pump (3) is fixedly connected to the upper surface of the support plate (1), and the input end of the oil pump (3) is fixedly connected to the telescopic tube (4).

4. A transformer oil sampling device according to claim 1, characterized in that: The air bag (11) is movably connected to the telescopic tube (4).

5. The transformer oil sampling device according to claim 1, characterized in that: The filter plate (8) is located at the bending portion of the bending tube (7), and the direction of the filter plate (8) is vertical.

6. A transformer oil sampling device according to claim 1, characterized in that: The output end of the oil pump (3) is fixedly connected to an oil outlet pipe, and the outside of the oil outlet pipe is connected to an oil sample bottle.

7. The transformer oil sampling device according to claim 1, characterized in that: The material of the telescopic tube (4) is a polyethylene telescopic oil tube, and the material of the airbag (11) is polyurethane.

8. The transformer oil sampling device according to claim 1, characterized in that: The upper surface of the support plate (1) is fixedly connected to a support block, and the upper surface of the support block is fixedly connected to a handle.

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