Leakage testing device for oil level gauge of transformer
By designing a transformer oil level gauge leak test device, which uses gas pressure and soapy water to check for air bubbles, the problem of oil level gauge sealing inspection was solved, achieving rapid and effective sealing detection and ensuring the safe operation of the transformer.
Patent Information
- Application Number
- CN202520531312.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-25
AI Technical Summary
During operation, moisture may seep into the oil tank through the glass observation window and gaps in the tube of the existing transformer oil level gauge, leading to a decrease in insulation strength and a risk of short circuit and burnout. It is also difficult to effectively check the sealing performance.
A transformer oil level gauge leak testing device was designed. It combines a tank body, an air inlet, a pressure relief valve, and a pressure monitoring gauge. It uses soapy water to check for bubble generation and combines a rotating column, a motor, and a clamping mechanism to achieve rapid installation and leak testing.
This enables rapid sealing checks of the oil level gauge, reduces replacement waiting time, improves work efficiency, and ensures the normal operation of the transformer.
Smart Images
Figure CN223955088U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transformer oil level meter field, concretely relates to a transformer oil level meter leak testing device. BACKGROUND
[0002] The transformer oil level meter plays a vital role in the electric power system, which is mainly used for monitoring the oil level of the oil storage tank in real time, helping the operator to monitor the oil level change. When the oil level is too high or too low, the transformer oil level meter will send an alarm signal, providing protection for the normal operation of the transformer.
[0003] The oil level meter uses a glass and a pipe body between the observation window position, and uses a glue bonding process. If the bonding is not good, water will seep into the transformer oil tank from the small gap between the glass observation window and the pipe body during the operation of the transformer, which will reduce the insulation strength of the transformer oil and cause the transformer to short circuit and burn out. Therefore, the sealing inspection of the oil level meter is necessary. Therefore, the technical personnel in the art provide a transformer oil level meter leak testing device to solve the problems raised in the above background. SUMMARY
[0004] To solve the above technical problems, the utility model provides a kind of transformer oil level meter leak testing device, including jar body and oil level meter body, jar body left end installs air inlet, jar body left end installs pressure release valve, jar body right end installs pressure monitoring table, jar body upper end installs oil level meter connecting port, oil level meter connecting port upper end installs screw connection ring, oil level meter body includes oil level meter pipe body and glass observation window, oil level meter pipe body side installs glass observation window, oil level meter pipe body outer surface installs cooperation ring, and cooperation ring lower end installs screw connector.
[0005] Preferably, the jar body upper end is rotatably connected to a rotating column, the rotating column outer surface is installed with a ring gear, the ring gear is engaged with a gear, and the gear lower end is installed with a motor one, and the motor one is fixed on the jar body upper end.
[0006] Preferably, the rotating column side is provided with a plurality of lifting grooves, the lifting grooves are rotatably connected with a threaded rod inside, and the threaded rod upper end passes through the rotating column to install a bevel gear one.
[0007] Preferably, the rotating column is rotatably connected with a fixed shaft inside, and the fixed shaft lower end is fixed on the jar body upper end, the fixed shaft upper end is installed with a motor two, the motor two right end is installed with a bevel gear two, and the bevel gear two is engaged with the bevel gear one, and the bevel gear two is towards the oil level meter connecting port.
[0008] Preferably, the threaded rod outer surface is screw connected with a horizontal plate, and the horizontal plate side is installed with a clamping mechanism.
[0009] Preferably: the clamping mechanism includes a fixed groove ring and a moving groove ring, the fixed groove ring is fixed on the side of the horizontal plate, the side of the fixed groove ring is symmetrically provided with a hollow rod, the hollow rod is internally connected with a sliding block, one end of the sliding block is provided with a pull rod, the pull rod is fixedly connected with a pull plate through the hollow rod, a spring is sleeved on the outer surface of the pull rod, and the spring is located in the hollow rod.
[0010] The technical effects and advantages of the present application are as follows:
[0011] 1. The utility model discloses a gas with the specified pressure is punched into the air inlet, observes the pressure monitoring table, stops punching after reaching the specified pressure, and can be coated with soapy water around the glass observation window after the pressurization is completed, whether bubble is produced or whether the air pressure is reduced at the specified time is observed, so that the purpose of inspection is achieved.
[0012] 2. When a large number of oil level gauges are inspected, the utility model can effectively reduce the waiting time for replacing the oil level gauge body and improve work efficiency. DRAWINGS
[0013] Figure 1 It is the structural schematic diagram of embodiment 1 of the application.
[0014] Figure 2 It is the structural schematic diagram of embodiment 2 of the application.
[0015] Figure 3 It is the structural schematic diagram of the rotating column of embodiment 2 of the application.
[0016] Figure 4 It is the structural schematic diagram of the clamping mechanism of embodiment 2 of the application.
[0017] In the drawings:
[0018] 1, tank body;2, air inlet;3, pressure release valve;4, pressure monitoring table;5, oil level gauge connecting port;6, threaded connection ring;7, oil level gauge body;8, oil level gauge pipe body;9, glass observation window;10, matching ring;
[0019] 11, threaded connector;12, rotating column;13, ring gear;14, gear;15, motor one;16, lifting groove;17, threaded rod;18, bevel gear one;19, fixed shaft;20, motor two;
[0020] 21, bevel gear two;22, horizontal plate;23, clamping mechanism;24, fixed groove ring;25, hollow rod;26, sliding block;27, pull rod;28, pull plate;29, moving groove ring;30, spring. DETAILED DESCRIPTION
[0021] The embodiments of the present application are presented by way of example and description, and are not exhaustive or limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application in order to design various embodiments with various modifications for specific use cases. Embodiment 1
[0022] Please refer to Figure 1 In the embodiment, a transformer oil level gauge leak testing device is provided, comprising a tank body 1 and an oil level gauge body 7, the left end of the tank body 1 is provided with an air inlet 2, the left end of the tank body 1 is provided with a pressure release valve 3, the right end of the tank body 1 is provided with a pressure monitoring table 4, the upper end of the tank body 1 is provided with an oil level gauge connecting port 5, the upper end of the oil level gauge connecting port 5 is provided with a threaded connecting ring 6, the oil level gauge body 7 comprises an oil level gauge pipe body 8 and a glass observation window 9, the glass observation window 9 is installed on the side surface of the oil level gauge pipe body 8, a matching ring 10 is installed on the outer surface of the oil level gauge pipe body 8, and a threaded connecting head 11 is installed at the lower end of the matching ring 10.
[0023] The working principle of the present application is as follows:
[0024] The oil level gauge body 7 is installed on the oil level gauge connecting port 5 through the threaded connecting head 11 and the threaded connecting ring 6, then, the gas with a specified pressure is injected into the air inlet 2, the pressure monitoring table 4 is observed, and the injection is stopped when the specified pressure is reached. If the specified pressure is exceeded, the pressure release valve 3 is opened to release the pressure to protect the oil level gauge body 7 from exceeding its pressure bearing range. After the pressurization is completed, soap water can be applied around the glass observation window 9 to observe whether bubbles are generated or the pressure is reduced at a specified time, so as to achieve the purpose of inspection. Embodiment 2
[0025] Please refer to Figures 2 to 4, the upper end of the tank body 1 is rotationally connected with a rotating column 12, an annular gear 13 is installed on the outer surface of the rotating column 12, the annular gear 13 meshes with a gear 14, the lower end of the gear 14 is installed with a motor one 15, the motor one 15 is fixed on the upper end of the tank body 1, a plurality of lifting grooves 16 are formed in the side surface of the rotating column 12, a threaded rod 17 is rotationally connected in the lifting grooves 16, the upper end of the threaded rod 17 penetrates through the rotating column 12 and is installed with a bevel gear one 18, a fixed shaft 19 is rotationally connected in the rotating column 12, the lower end of the fixed shaft 19 is fixed on the upper end of the tank body 1, a motor two 20 is installed on the upper end of the fixed shaft 19, a bevel gear two 21 is installed on the right end of the motor two 20, the bevel gear two 21 meshes with the bevel gear one 18, the bevel gear two 21 is towards the oil level gauge connecting port 5, the outer surface of the threaded rod 17 is threadedly connected with a cross plate 22, the cross plate 22 is installed with a clamping mechanism 23, the clamping mechanism 23 comprises a fixed groove ring 24 and a movable groove ring 29, the fixed groove ring 24 is fixed on the side surface of the cross plate 22, the side surface of the fixed groove ring 24 is symmetrically installed with a hollow rod 25, the hollow rod 25 is internally slidably connected with a sliding block 26, one end of the sliding block 26 is installed with a pull rod 27, the pull rod 27 penetrates through the hollow rod 25 and is fixedly connected with a pull plate 28, the outer surface of the pull rod 27 is sleeved with a spring 30, and the spring 30 is located in the hollow rod 25.
[0026] The working principle of the utility model is: the pull plate 28 drives the sliding block 26 to move and compresses the spring 30 through the pull rod 27, the pull plate 28 drives the movable groove ring 29 to move, the matching ring 10 of the oil level gauge body 7 is placed between the fixed groove ring 24 and the movable groove ring 29, then, the pull plate 28 is released, the movable groove ring 29 is reset through the spring 30, the matching ring 10 of the oil level gauge body 7 is clamped into the fixed groove ring 24 and the movable groove ring 29, thereby the oil level gauge body 7 is quickly installed;
[0027] Then, the motor one 15 drives the rotating column 12 to intermittently rotate through the gear 14 and the annular gear 13 meshing, the rotating column 12 drives the clamping mechanism 23 and the oil level gauge body 7 to rotate through the cross plate 22, the oil level gauge body 7 is rotated to be directly above the oil level gauge connecting port 5, at the same time, the bevel gear one 18 rotates and meshes with the bevel gear two 21, then, the motor two 20 drives the threaded rod 17 to rotate through the bevel gear two 21 and the bevel gear one 18 meshing, the oil level gauge body 7 is lowered through the cross plate 22 and the clamping mechanism 23 driving, the oil level gauge body 7 is fixed on the oil level gauge connecting port 5, then, the leak test is carried out, which is convenient and fast, when a large number of oil level gauge bodies 7 are inspected and tested, the waiting time for replacing the oil level gauge body 7 can be reduced, and the work efficiency is provided.
[0028] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor shall belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.
Claims
1. A transformer oil level gauge leak testing device comprising a tank body (1) and an oil level gauge body (7), characterised in that, The left end of the tank body (1) is provided with an air inlet (2), the left end of the tank body (1) is provided with a pressure relief valve (3), the right end of the tank body (1) is provided with a pressure monitoring table (4), the upper end of the tank body (1) is provided with an oil level gauge connecting port (5), the upper end of the oil level gauge connecting port (5) is provided with a threaded connection ring (6), the oil level gauge body (7) comprises an oil level gauge pipe body (8) and a glass observation window (9), the oil level gauge pipe body (8) is provided with a glass observation window (9) on the side, the oil level gauge pipe body (8) is provided with a matching ring (10) on the outer surface, and the matching ring (10) is provided with a threaded connector (11) at the lower end.
2. A transformer oil level gauge leak testing device according to claim 1, characterised in that, The upper end of the tank body (1) is rotatably connected with a rotating column (12), the outer surface of the rotating column (12) is provided with an annular gear (13), the annular gear (13) is engaged with a gear (14), the lower end of the gear (14) is provided with a motor one (15), and the motor one (15) is fixed on the upper end of the tank body (1).
3. A transformer oil level gauge leak testing device according to claim 2, characterised in that, The side of the rotating column (12) is provided with a plurality of lifting grooves (16), the lifting grooves (16) are rotatably connected with threaded rods (17) inside, and the threaded rods (17) are provided with umbrella gears one (18) at the upper end and pass through the rotating column (12).
4. A transformer oil level gauge leak testing device according to claim 2, wherein The rotating column (12) is rotatably connected with a fixed shaft (19) inside, the lower end of the fixed shaft (19) is fixed on the upper end of the tank body (1), the upper end of the fixed shaft (19) is provided with a motor two (20), the right end of the motor two (20) is provided with an umbrella gear two (21), the umbrella gear two (21) is engaged with the umbrella gear one (18), and the umbrella gear two (21) faces the oil level gauge connecting port (5).
5. A transformer oil level gauge leak testing device according to claim 3, wherein The outer surface of the threaded rod (17) is threadedly connected with a horizontal plate (22), and the horizontal plate (22) is provided with a clamping mechanism (23) on the side.
6. A transformer oil level gauge leak testing device according to claim 5, wherein, The clamping mechanism (23) comprises a fixed groove ring (24) and a moving groove ring (29), the fixed groove ring (24) is fixed on the side of the horizontal plate (22), the fixed groove ring (24) is symmetrically provided with a hollow rod (25) on the side, the hollow rod (25) is slidably connected with a sliding block (26) inside, one end of the sliding block (26) is provided with a pull rod (27), the pull rod (27) is fixedly connected with a pull plate (28) by penetrating through the hollow rod (25), a spring (30) is sleeved on the outer surface of the pull rod (27), and the spring (30) is located in the hollow rod (25).