Main transformer oil seal cup detection device

Abstract

The present invention discloses a main transformer oil seal cup detection device, which includes an observation cylinder. A fitting ring and a stable base are respectively arranged at the bottom and the top of the observation cylinder. A taking handle is arranged at the bottom of the stable base. A vortex tube is inserted at the top of the taking handle. Air inlet channels are respectively arranged on both sides of the stable base. Low-temperature tubes and high-temperature tubes are respectively arranged at both ends of the two vortex tubes. One ends of the low-temperature tubes and the high-temperature tubes are respectively connected to the corresponding air inlet channels. By setting the vortex tubes, the high-pressure air flow is converted into two kinds of air flows, namely low-temperature air flow and high-temperature air flow. By adjusting the moving block, a single beam of low-temperature or high-temperature air flow is introduced into the observation cylinder, so that the surface temperature of the oil seal cup is far different from the external temperature. At the same time, the device can use appropriate temperature air flow according to the weather temperature, thereby accelerating the speed of bubbles emerging in the oil seal cup. Whether the breather is blocked is judged by whether bubbles are generated in the oil seal cup. The observation time is less and it is more convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of oil seal cup detection, and particularly relates to a main transformer oil seal cup detection device. Background Technique

[0002] If the breather of a substation transformer is blocked, it will lead to an unplanned outage event of the gas relay alarm. The daily inspection and maintenance of the breather are greatly affected by the weather. When the temperature is relatively high or low, bubbles can occasionally be seen emerging from the oil seal cup at the bottom of the breather during inspections. If no bubbles are generated in the oil seal cup for a long time, the breather is very likely to be blocked. And whether bubbles are generated in the oil seal cup needs to be observed for a long time. If the inspector misses the emergence of bubbles due to distraction, it will take even longer to observe or directly determine that the breather is blocked, and it is impossible to control the generation of bubbles, making the detection very troublesome.

[0003] Therefore, it is very necessary to invent a main transformer oil seal cup detection device to solve the above problems. Summary of the Invention

[0004] In view of the above problems, the present invention provides a main transformer oil seal cup detection device to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present invention provides the following technical solution: A main transformer oil seal cup detection device includes an observation cylinder. The bottom and top of the observation cylinder are respectively provided with a fitting ring and a stable base. Exhaust holes are opened on both sides of the fitting ring. A taking handle is provided at the bottom of the stable base. A vortex tube is inserted at the top of the taking handle. Air intake channels are opened on both sides of the stable base. Low-temperature tubes and high-temperature tubes are respectively provided at both ends of the two vortex tubes. One ends of the low-temperature tubes and the high-temperature tubes are respectively connected to the corresponding air intake channels.

[0006] A moving block is movably inserted at the bottom of the stable base. A lead screw is rotatably inserted at the bottom of the moving block. One section of the lead screw penetrates through the stable base and extends to the outside, and an adjustment knob is provided at the end of the lead screw. Air flow conversion channels are opened on both sides of the moving block. Folding hoses are provided at the ends of the two air flow conversion channels. One ends of the two folding hoses are connected to the two air intake channels. A conversion chamber is provided on the stable base at the top of the moving block, and a flow guiding mechanism is provided inside the conversion chamber.

[0007] Further, the flow guiding mechanism includes a connecting block. The two ends of the connecting block are fixedly connected to the inner wall of the conversion chamber. A flow dividing cone is fixedly connected to the bottom of the connecting block. A rotating shaft is rotatably inserted at the top of the connecting block, and a plurality of rotating vanes are provided on the surface of the rotating shaft.

[0008] Further, exhaust mechanisms are provided on both sides of the air flow conversion channel. The exhaust mechanisms include two conical pistons. Both conical pistons are movably inserted into the interior of the air flow conversion channel. One end of each conical piston is fixedly connected to a spring, and one end of the spring is fixedly connected to the inner wall of the air flow conversion channel. Exhaust channels are provided on both sides of the stable base where the two exhaust mechanisms are located.

[0009] Further, an activity groove is provided at the top of the fitting ring. A push ring is movably inserted into the top of the activity groove. Two semi-ring blocks are provided at the bottom of the push ring. Sealing semi-rings are provided on one side of each of the two semi-ring blocks. The middle part of each sealing semi-ring is hollow.

[0010] Further, a connecting pipe is provided at the bottom of the vortex tube. The connecting pipe is connected to the output end of an external air compressor.

[0011] Further, the observation cylinder is made of transparent tempered glass. Both ends of the observation cylinder are fixedly connected to the fitting ring and the stable base by glue.

[0012] Further, the rotating blades are arranged in a curved shape. A number of rotating blades are arranged annularly and equidistantly relative to the rotating shaft.

[0013] Further, the bottom of the push ring and the tops of the two semi-ring blocks are both sloped surfaces. The semi-ring blocks and the sealing semi-rings are both made of soft rubber.

[0014] The technical effects and advantages of the present invention:

[0015] 1. In the present invention, the vortex tube is provided to convert high-pressure air flow into two kinds of air flows, namely low-temperature and high-temperature air flows. By adjusting the moving block, a single beam of low-temperature or high-temperature air flow is introduced into the observation cylinder, so that the surface temperature of the oil seal cup is far different from the external temperature. At the same time, the device can use the appropriate temperature air flow according to the weather temperature, thereby accelerating the speed of the bubbles emerging in the oil seal cup. Whether the respirator is blocked is judged by whether bubbles are generated in the oil seal cup. The time taken for observation is less and it is more convenient.

[0016] 2. In the present invention, the exhaust mechanisms are provided, and the unused air flow can be led out of the device through the exhaust channels, which does not affect the use of the vortex tube and effectively avoids the situation that the two air flows enter simultaneously and cannot cause temperature change on the surface of the oil seal cup.

[0017] 3. In the present invention, the flow guiding mechanism is provided, which can break up the beam-shaped air flow into a uniform stream, thereby increasing the volume of the air flow during flow, reducing the impact of the air flow on the bottom of the oil seal cup and reducing the flow rate of the air flow. The required low-temperature or high-temperature air flow can stay in the observation cylinder for a longer time, and thus the temperature change speed inside the oil seal cup.

[0018] Other features and advantages of the present invention will be set forth in the following description, and in part will be obvious from the description, or may be learned by practice of the present invention. The objectives and other advantages of the present invention may be realized and attained by the structure particularly pointed out in the specification and the drawings. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 Shows a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 Shows a front view cross-sectional view of an embodiment of the present invention;

[0022] Figure 3 Shows in an embodiment of the present invention Figure 2 An enlarged view of part A;

[0023] Figure 4 Shows a top view cross-sectional view of an embodiment of the present invention;

[0024] In the figure: 1, observation tube; 2, fitting ring; 3, stable base; 4, exhaust hole; 5, taking handle; 6, vortex tube; 7, intake channel; 8, low-temperature tube; 9, high-temperature tube; 10, connecting tube; 11, moving block; 12, lead screw; 13, adjustment knob; 14, air flow conversion channel; 15, folding hose; 16, conversion chamber; 17, connecting block; 18, flow dividing cone; 19, rotating shaft; 20, rotating vane; 21, conical piston; 22, spring; 23, exhaust channel; 24, movable slot; 25, pushing ring; 26, semi-ring block; 27, sealing semi-ring. Detailed Embodiments

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0026] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0027] The present invention provides a main transformer oil seal cup detection device, as Figures 1-4As shown in the figure, it includes an observation cylinder 1. A fitting ring 2 and a stable base 3 are respectively arranged at the bottom and top of the observation cylinder 1. The observation cylinder 1 is made of transparent tempered glass. The two ends of the observation cylinder 1 are fixedly connected to the fitting ring 2 and the stable base 3 by glue. Exhaust holes 4 are provided on both sides of the fitting ring 2. A taking handle 5 is arranged at the bottom of the stable base 3. A vortex tube 6 is inserted at the top of the taking handle 5. Air intake channels 7 are provided on both sides of the stable base 3. Low-temperature tubes 8 and high-temperature tubes 9 are respectively arranged at both ends of the two vortex tubes 6. One ends of the low-temperature tube 8 and the high-temperature tube 9 are respectively connected to the corresponding air intake channels 7. A connecting tube 10 is arranged at the bottom of the vortex tube 6. The connecting tube 10 is connected to the output end of an external air compressor.

[0028] A moving block 11 is movably inserted at the bottom of the stable base 3. A lead screw 12 is rotatably inserted at the bottom of the moving block 11. One section of the lead screw 12 penetrates through the stable base 3 and extends to the outside, and an adjusting knob 13 is arranged at the end of the lead screw 12. Air flow conversion channels 14 are provided on both sides of the moving block 11. Folding hoses 15 are arranged at the ends of the two air flow conversion channels 14. One ends of the two folding hoses 15 are connected to the two air intake channels 7. A conversion chamber 16 is arranged at the top of the stable base 3 where the moving block 11 is located. A flow guiding mechanism is arranged inside the conversion chamber 16.

[0029] When observing whether the breather is blocked through the oil seal cup, hold the taking handle 5 and put the device on the surface of the oil seal cup from the bottom of the oil seal cup. Then start the external air compressor so that the high-pressure air flow enters the vortex tube 6 through the connecting tube 10. After the high-pressure air flow flows through the vortex tube 6, two air flows of low temperature and high temperature are generated and enter the corresponding air intake channels 7 through the low-temperature tube 8 and the high-temperature tube 9. The low-temperature air flow and the high-temperature air flow enter the air flow conversion channels 14 through the corresponding folding hoses 15. Among them, the high-temperature air flow or the low-temperature air flow is blocked and discharged from the exhaust mechanism, and the other air flow enters the observation cylinder 1 from the bottom of the conversion chamber 16. When the beam-shaped air flow flows through the flow guiding mechanism, it is diffused. After fully heating or cooling the surface of the oil seal cup in the observation cylinder 1, it is discharged from the exhaust holes 4 on both sides of the fitting ring 2. When the weather is at different temperatures or the single-temperature reaction of the oil seal cup is slow, rotate the adjusting knob 13 to drive the lead screw 12 to rotate. The moving block 11 moves accordingly and drives the two air flow conversion channels 14 to change positions. The air flow that was originally discharged from the exhaust mechanism enters the conversion chamber 16, and the originally entering air flow is blocked by the bottom of the stable base 3 and discharged from the corresponding exhaust mechanism. The temperature received by the surface of the oil seal cup changes from low temperature to high temperature or from high temperature to low temperature. Whether there are bubbles generated in the oil seal cup can be observed through the observation cylinder 1, and then it can be determined whether the breather is blocked.

[0030] In the present invention, a vortex tube 6 is provided to convert high-pressure air flow into two types of air flows, i.e., low-temperature and high-temperature air flows. By adjusting the moving block 11, a single beam of low-temperature or high-temperature air flow is introduced into the observation tube 1, so that the surface temperature of the oil seal cup is far different from the external temperature. At the same time, the device can use appropriate temperature air flow according to the weather temperature, thereby accelerating the speed of bubbles emerging in the oil seal cup. Whether the respirator is blocked is judged by whether bubbles are generated in the oil seal cup, and the time for observation is less and more convenient.

[0031] As Figure 2 shown, the flow guiding mechanism includes a connecting block 17. Both ends of the connecting block 17 are fixedly connected to the inner wall of the conversion chamber 16. A flow dividing cone 18 is fixedly connected to the bottom of the connecting block 17. A rotating shaft 19 is rotatably inserted into the top of the connecting block 17. A plurality of rotating vanes 20 are arranged on the surface of the rotating shaft 19. The rotating vanes 20 are arranged in a curved shape, and the plurality of rotating vanes 20 are arranged annularly and equidistantly relative to the rotating shaft 19.

[0032] After the low-temperature air flow or high-temperature air flow enters the conversion chamber 16, the air flow impacts on the bottom of the flow dividing cone 18 and disperses around. The dispersed air flow then passes through the rotating vanes 20 and pushes them. The plurality of rotating vanes 20 slowly rotate around the rotating shaft 19, and the beam-shaped air flow is scattered into a uniform stream and then enters the observation tube 1.

[0033] In the present invention, by providing a flow guiding mechanism, the beam-shaped air flow can be scattered into a uniform stream, thereby increasing the volume of the air flow during flow, reducing the impact of the air flow on the bottom of the oil seal cup and reducing the flow rate of the air flow. The required low-temperature air flow or high-temperature air flow can stay in the observation tube 1 for a longer time, and thus the temperature change speed inside the oil seal cup.

[0034] As Figure 2 and Figure 4 shown, exhaust mechanisms are arranged on both sides of the air flow conversion channel 14. The exhaust mechanisms include two conical pistons 21. Both of the two conical pistons 21 are movably inserted into the air flow conversion channel 14. One end of the conical piston 21 is fixedly connected to a spring 22. One end of the spring 22 is fixedly connected to the inner wall of the air flow conversion channel 14. Exhaust channels 23 are opened on both sides of the stable base 3 located on both sides of the two exhaust mechanisms.

[0035] When the top of the air flow conversion channel 14 is blocked by the bottom of the stable base 3, the low-temperature or high-temperature air flow impacts and pushes the two conical pistons 21 on both sides. The spring 22 is compressed accordingly. The movement of the conical pistons 21 causes the air flow to leave from both sides of the air flow conversion channel 14 and be discharged through the exhaust channels 23. The exhaust channels 23 guide the discharged air flow to avoid blowing towards the user, while the conical pistons 21 on both sides of the other air flow conversion channel 14 tightly seal both sides thereof, and the required air flow can enter the observation tube 1 through the conversion chamber 16 and act on the surface of the oil seal cup.

[0036] The present invention is provided with an exhaust mechanism, which can guide unused airflow out of the device from the exhaust channel 23 without affecting the use of the vortex tube 6, and effectively avoids two airflows entering at the same time and causing temperature changes on the surface of the oil seal cup.

[0037] like Figure 3 As shown, a movable groove 24 is provided on the top of the fitting ring 2, a push ring 25 is movably inserted on the top of the movable groove 24, two semi-ring blocks 26 are provided at the bottom of the push ring 25, and a sealing semi-ring 27 is provided on one side of the two semi-ring blocks 26. The middle part of the sealing semi-ring 27 is hollow, the bottom of the push ring 25 and the tops of the two semi-ring blocks 26 are both sloped, and the semi-ring blocks 26 and the sealing semi-rings 27 are both made of soft rubber.

[0038] During the process of installing the device, that is, when the top of the fitting ring 2 contacts the respirator surface at the top of the oil seal cup, the top of the fitting ring 2 contacts it first and is pushed in the opposite direction. Since the bottom of the pushing ring 25 and the tops of the two semi-ring blocks 26 are both sloped, the fitting ring 2 moves the two semi-ring blocks 26 when it moves in the movable groove 24. The semi-ring blocks 26 move and deform, and the sealing semi-ring 27 moves accordingly and gradually fits the surface of the oil seal cup. Since the middle part of the sealing semi-ring 27 is hollow, the sealing semi-ring 27 is squeezed and deformed by the surface of the oil seal cup and fits tightly with the surface of the oil seal cup. The airflow gathered at the top of the observation tube 1 can be discharged from the exhaust hole 4.

[0039] The present invention is provided with two sealing half rings 27, and utilizes the push of the fitting ring 2 to make it squeezed and deformed by the surface of the oil seal cup and seal the top of the fitting ring 2, so that the airflow leaves from the two exhaust holes 4 in the same direction as the airflow in the exhaust channel 23, and the airflow discharge position is not at the user's working position, thereby avoiding the airflow from affecting the user.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Main transformer oil seal cup detection device, including an observation cylinder (1), Characterized in that: A fitting ring (2) and a stable base (3) are respectively arranged at the bottom and top of the observation cylinder (1). Exhaust holes (4) are opened on both sides of the fitting ring (2). A handling handle (5) is arranged at the bottom of the stable base (3). A vortex tube (6) is inserted and arranged at the top of the handling handle (5). Air intake channels (7) are opened on both sides of the stable base (3). Low-temperature tubes (8) and high-temperature tubes (9) are respectively arranged at both ends of the two vortex tubes (6). One ends of the low-temperature tubes (8) and the high-temperature tubes (9) are respectively connected to the corresponding air intake channels (7); A moving block (11) is movably inserted at the bottom of the stable base (3). A lead screw (12) is rotatably inserted at the bottom of the moving block (11). One section of the lead screw (12) penetrates through the stable base (3) and extends to the outside, and an adjusting knob (13) is arranged at the end of the lead screw (12). Air flow conversion channels (14) are opened on both sides of the moving block (11). Folding hoses (15) are arranged at the ends of the two air flow conversion channels (14). One ends of the two folding hoses (15) are connected to the two air intake channels (7). A conversion chamber (16) is arranged at the top of the stable base (3) where the moving block (11) is located, and a flow guiding mechanism is arranged inside the conversion chamber (16).

2. The main transformer oil seal cup detection device according to claim 1, Characterized in that: The flow guiding mechanism includes a connecting block (17). Both ends of the connecting block (17) are fixedly connected to the inner wall of the conversion chamber (16). A flow dividing cone (18) is fixedly connected to the bottom of the connecting block (17). A rotating shaft (19) is rotatably inserted at the top of the connecting block (17). A plurality of rotating vanes (20) are arranged on the surface of the rotating shaft (19).

3. The main transformer oil seal cup detection device according to claim 1, Characterized in that: Exhaust mechanisms are arranged on both sides of the air flow conversion channel (14). The exhaust mechanisms include two conical pistons (21). Both of the two conical pistons (21) are movably inserted inside the air flow conversion channel (14). One end of the conical piston (21) is fixedly connected to a spring (22). One end of the spring (22) is fixedly connected to the inner wall of the air flow conversion channel (14). Exhaust channels (23) are opened on both sides of the stable base (3) where the two exhaust mechanisms are located.

4. The main transformer oil seal cup detection device according to claim 1, Characterized in that: An activity groove (24) is opened at the top of the fitting ring (2). A pushing ring (25) is movably inserted at the top of the activity groove (24). Two semi-ring blocks (26) are arranged at the bottom of the pushing ring (25). Sealing semi-rings (27) are arranged on one side of the two semi-ring blocks (26). The middle of the sealing semi-ring (27) is hollow.

5. The main transformer oil seal cup detection device according to claim 1, Characterized in that: A connecting pipe (10) is arranged at the bottom of the vortex tube (6), and the connecting pipe (10) is connected to the output end of an external air compressor.

6. The main transformer oil seal cup detection device according to claim 1, Characterized in that: The observation cylinder (1) is made of transparent tempered glass, and both ends of the observation cylinder (1) are fixedly connected to the fitting ring (2) and the stable base (3) through glue.

7. The main transformer oil seal cup detection device according to claim 2, characterized in that: the rotating piece (20) is arranged in a curved shape, and a plurality of rotating pieces (20) are arranged annularly and equidistantly relative to the rotating shaft (19).

8. The main transformer oil seal cup detection device according to claim 4, characterized in that: the bottom of the pushing ring (25) and the tops of the two half-ring blocks (26) are both provided with slopes, and the half-ring blocks (26) and the sealing half-rings (27) are both made of soft rubber material.

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