A transformer oil tank leak tester

Abstract

This utility model discloses a transformer oil tank leak testing machine, relating to the field of transformer oil tank testing technology, including a base and a testing unit; the base has a support on the rear side of its top surface, and hydraulic rods are fixed on both sides of the top surface of the support, with the bottom end of the hydraulic rods connected to one side of the top surface of the pressure plate; the testing unit includes a liquid tank, a liquid pump, and a high-pressure air pump. The liquid tank is fixed to the rear side of the base, and the liquid pump is placed inside the liquid tank. The liquid pump's outlet pipe is connected to the liquid inlet on the top surface of the pressure plate. The high-pressure air pump is fixed to the top surface of the support, and its outlet pipe is connected to the air inlet on the top surface of the pressure plate; this transformer oil tank leak testing machine, by using water injection and high-pressure gas injection, can increase the accuracy of transformer oil tank leak detection, while also avoiding the time-consuming and labor-intensive problems of traditional water immersion testing. Furthermore, in conjunction with a defect camera, it can simultaneously inspect the surface of the transformer oil tank, thus improving testing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer oil tank detection, in particular to a transformer oil tank leakage tester. Background Art

[0002] The transformer oil tank (corrugated oil tank) is filled with oil, but the oil in the transformer oil pillow cannot be too full. The oil tank and the oil pillow are connected by a pipeline. When the oil tank lacks oil, the oil in the oil pillow will flow down the pipeline and replenish the oil tank to keep it full of oil; at the same time, when the transformer load increases, the oil temperature rises, the transformer oil expands, and the oil tank cannot hold it, it will also flow up the pipeline and flow back to the oil pillow. In the production process of the transformer oil tank, it is necessary to use a detection device to detect its airtightness. Most of the detection devices currently used are to immerse the transformer oil tank in liquid for detection. Due to the large volume of the transformer oil tank, this is very inconvenient in the detection process, and the detection method is relatively single, so the detection result is also prone to inaccuracy. For this reason, we propose a transformer oil tank leak tester. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a transformer oil tank leak tester. The water injection and high-pressure gas injection methods can increase the accuracy of transformer oil tank leakage detection, while also avoiding the time-consuming and labor-intensive problems of traditional water immersion detection. At the same time, in conjunction with a defect camera, the surface of the transformer oil tank can be inspected at the same time, which can improve the detection efficiency and effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transformer oil tank leak tester, comprising a base and a detection unit;

[0005] Base: A bracket is provided on the rear side of the top surface, and hydraulic rods are fixed on both sides of the top surface of the bracket, and the bottom end of the hydraulic rod is connected to one side of the top surface of the pressing plate;

[0006] Detection unit: comprising a liquid tank, a liquid pump and a high-pressure air pump, wherein the liquid tank is fixed to the rear side of the base, a liquid pump is placed inside the liquid tank, a liquid outlet pipe of the liquid pump is connected to a liquid inlet on the top surface of the pressing plate, the high-pressure air pump is fixed to the top surface of the bracket, and an air outlet pipe of the high-pressure air pump is connected to an air inlet on the top surface of the pressing plate;

[0007] It also includes a controller, which is arranged on the front side of the base. The input ends of the hydraulic rod, liquid pump and high-pressure air pump are electrically connected to the output end of the controller, and the input end of the controller is electrically connected to the output end of an external power supply.

[0008] The hydraulic rod is started to fix the pressure plate on the top surface of the transformer oil tank to fix it, and at the same time, the liquid pump is started to inject the liquid inside the liquid tank into the transformer oil tank, and the high-pressure air pump is started to inject gas, so that the transformer oil tank can be detected for leakage.

[0009] Furthermore, the detection unit also includes a turbine, a worm, a motor, a support frame, an electric telescopic rod, a placement frame and a defect camera. The support frame is rotatably connected to the inside of the base, a turbine is fixed to the outside of the support frame, the motor is arranged on the front side of the base, the output shaft of the motor is connected to the front end of the worm, the worm is meshed with the turbine, the electric telescopic rod is fixed on the left and right sides of the top surface of the support frame, the top of the electric telescopic rod is provided with a placement frame, the inside of the placement frame is placed, the input ends of the motor, the electric telescopic rod and the defect camera are electrically connected to the output end of the controller, the motor drives the worm to mesh with the turbine, and at the same time starts the electric telescopic rod to adjust the position of the defect camera, thereby inspecting the surface of the transformer oil tank to improve the accuracy of the detection.

[0010] Furthermore, the detection unit also includes a negative pressure liquid pump and a leakage groove. The negative pressure liquid pump is fixed on the left side of the liquid tank. The liquid inlet pipe of the negative pressure liquid pump is connected to the liquid outlet on the left side of the base. The leakage groove is evenly arranged on the top surface of the base. The input end of the negative pressure liquid pump is electrically connected to the output end of the controller. The leakage groove can cooperate with the interior of the base to store the liquid used for detection, and the negative pressure liquid pump can re-transport the liquid to the interior of the liquid tank for subsequent reuse.

[0011] Furthermore, the detection unit also includes a liquid level sensor and a pressure sensor. The liquid level sensor is fixed on the left side of the liquid tank, and the pressure sensor is installed on the front side of the top surface of the pressure plate. The output ends of the liquid level sensor and the pressure sensor are electrically connected to the input end of the controller. The liquid level sensor can detect the remaining liquid inside the liquid tank to facilitate personnel to add it in time. At the same time, the pressure sensor can detect the air pressure inside the transformer oil tank to determine whether the transformer oil tank is leaking when the pressure changes.

[0012] Furthermore, it also includes a lighting lamp, which is installed on the front side of the bracket. The input end of the lighting lamp is electrically connected to the output end of the controller. The lighting lamp can supplement the surface of the transformer oil tank to prevent the dark light from affecting the detection effect.

[0013] Furthermore, it also includes a sealing ring, which is fixed on the outer side of the bottom surface of the pressure plate. The sealing ring is made of rubber and can reduce the gap at the connection to prevent gas leakage at the connection.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The pressure plate is fixed on the top surface of the transformer oil tank by starting the hydraulic rod, and the liquid pump is started to inject the liquid inside the liquid tank into the transformer oil tank, and the high-pressure air pump is started to inject the gas, so as to detect whether the transformer oil tank is leaking.

[0016] 2. The motor drives the worm to mesh with the turbine, and at the same time, the electric telescopic rod is started to adjust the position of the defect camera, so as to inspect the surface of the transformer tank to improve the accuracy of the inspection.

[0017] 3. The liquid level sensor can be used to detect the remaining liquid in the liquid tank to facilitate timely addition of liquid by personnel. At the same time, the pressure sensor can detect the air pressure inside the transformer tank to determine whether the transformer tank is leaking when the pressure changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the rear side structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the base of the utility model.

[0021] In the figure: 1 base, 2 detection unit, 21 liquid tank, 22 liquid pump, 23 high-pressure air pump, 24 turbine, 25 worm, 26 motor, 27 support frame, 28 electric telescopic rod, 29 placement frame, 210 defect camera, 211 negative pressure liquid pump, 212 leakage tank, 213 liquid level sensor, 214 pressure sensor, 3 bracket, 4 hydraulic rod, 5 pressure plate, 6 lighting lamp, 7 sealing ring, 8 controller. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 ,This embodiment provides a technical solution: a transformer oil tank leakage tester, comprising a base 1 and a detection unit 2;

[0024] Base 1: A bracket 3 is provided on the rear side of the top surface, and hydraulic rods 4 are fixed on both sides of the top surface of the bracket 3, and the bottom end of the hydraulic rod 4 is connected to one side of the top surface of the pressing plate 5;

[0025] Detection unit 2: includes a liquid tank 21, a liquid pump 22 and a high-pressure air pump 23. The liquid tank 21 is fixed to the rear side of the base 1. The liquid pump 22 is placed inside the liquid tank 21. The liquid outlet pipe of the liquid pump 22 is connected to the liquid inlet on the top surface of the pressing plate 5. The high-pressure air pump 23 is fixed to the top surface of the bracket 3. The air outlet pipe of the high-pressure air pump 23 is connected to the air inlet on the top surface of the pressing plate 5. The detection unit 2 also includes a turbine 24, a worm 25, a motor 26, a support frame 27, an electric telescopic rod 28, a placement frame 29 and a defect camera 210. The support frame 27 is rotatably connected to the inside of the base 1, and the outside of the support frame 27 is fixed. There is a turbine 24, a motor 26 is arranged on the front side of the base 1, the output shaft of the motor 26 is connected to the front side end of the worm 25, the worm 25 is meshed with the turbine 24, and the left and right sides of the top surface of the support frame 27 are fixed with electric telescopic rods 28, and the top of the electric telescopic rod 28 is provided with a placement frame 29, and the inside of the placement frame 29 is placed with a defect camera 210. The input ends of the motor 26, the electric telescopic rod 28 and the defect camera 210 are electrically connected to the output end of the controller 8. The motor 26 drives the worm 25 to mesh with the turbine 24, and at the same time, the electric telescopic rod 28 is started to adjust the position of the defect camera 210. Thereby, the surface of the transformer oil tank is detected to improve the accuracy of the detection. The detection unit 2 also includes a negative pressure liquid pump 211 and a leakage groove 212. The negative pressure liquid pump 211 is fixed on the left side of the liquid tank 21. The liquid inlet pipe of the negative pressure liquid pump 211 is connected to the liquid outlet on the left side of the base 1. The leakage groove 212 is evenly arranged on the top surface of the base 1. The input end of the negative pressure liquid pump 211 is electrically connected to the output end of the controller 8. The leakage groove 212 can cooperate with the inside of the base 1 to store the liquid used for detection, and the negative pressure liquid pump 211 can re-transport the liquid to the inside of the liquid tank 21 for later use. Continue to reuse, the detection unit 2 also includes a liquid level sensor 213 and a pressure sensor 214, the liquid level sensor 213 is fixed on the left side of the liquid tank 21, and the pressure sensor 214 is installed on the front side of the top surface of the pressure plate 5. The output ends of the liquid level sensor 213 and the pressure sensor 214 are electrically connected to the input end of the controller 8. The liquid level sensor 213 can detect the residual liquid inside the liquid tank 21 to facilitate personnel to add it in time. At the same time, the pressure sensor 214 can detect the air pressure inside the transformer tank to determine whether the transformer tank is leaking when the pressure changes;

[0026] Among them, it also includes a controller 8, which is arranged on the front side of the base 1, and the input ends of the hydraulic rod 4, the liquid pump 22 and the high-pressure air pump 23 are electrically connected to the output end of the controller 8, and the input end of the controller 8 is electrically connected to the output end of the external power supply. The hydraulic rod 4 is started to fix the pressure plate 5 on the top surface of the transformer oil tank to fix it, and at the same time, the liquid pump 22 is started to inject the liquid inside the liquid tank 21 into the inside of the transformer oil tank, and the high-pressure air pump 23 is started to inject gas, so that whether the transformer oil tank is leaking can be detected. It also includes a lighting lamp 6, which is installed on the front side of the bracket 3. The input end of the lighting lamp 6 is electrically connected to the output end of the controller 8. The lighting lamp 6 can fill in the light on the surface of the transformer oil tank, so as to prevent the dark light from affecting the detection effect. It also includes a sealing ring 7, which is fixed on the outer side of the bottom surface of the pressure plate 5. The sealing ring 7 is rubber. The sealing ring 7 can reduce the gap at the connection to prevent gas leakage at the connection.

[0027] The working principle of a transformer oil tank leak tester provided by the utility model is as follows: first, the transformer oil tank is placed on the top surface of the base 1, and the hydraulic rod 4 is started to fix the pressure plate 5 on the top surface of the transformer oil tank to fix it. The sealing ring 7 can reduce the gap at the connection to prevent gas leakage at the connection. At the same time, the liquid pump 22 is started to inject the liquid inside the liquid tank 21 into the inside of the transformer oil tank, and the high-pressure air pump 23 is started to inject gas, so that whether the transformer oil tank is leaking can be detected. The pressure sensor 214 can detect the air pressure inside the transformer oil tank to determine whether the transformer oil tank is leaking when the pressure changes. At the same time, the motor 26 and the electric telescopic rod 28 are started to adjust the position of the defect camera 210, so as to detect the surface of the transformer oil tank to improve the accuracy of the detection. After the detection is completed, the liquid inside the transformer oil tank is immersed into the base 1 through the leakage groove 212, and the negative pressure liquid pump 211 is started to transport the liquid to the inside of the liquid tank 21. At this point, the detection of the transformer oil tank is completed, and it is also convenient for subsequent detection.

[0028] It is worth noting that the controller 8 disclosed in the above embodiment uses the model S7-200, and the defect camera 210 can be freely configured according to the actual application scenario. It is recommended to use the defect detection camera model MV-CS050-10GM, the liquid level sensor 213 can use the liquid level sensor model FST700-CS01, and the pressure sensor 214 can use the gas pressure sensor model RL-2088. The controller 8 controls the liquid pump 22, the high-pressure air pump 23, the motor 26, the electric telescopic rod 28, the defect camera 210, the negative pressure liquid pump 211, the liquid level sensor 213, the pressure sensor 214, the hydraulic rod 4 and the lighting lamp 6 using the methods commonly used in the prior art.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A transformer oil tank leak tester, characterized in that: It comprises a base (1) and a detection unit (2); Base (1): A bracket (3) is provided on the rear side of the top surface, hydraulic rods (4) are fixed on both sides of the top surface of the bracket (3), and the bottom end of the hydraulic rod (4) is connected to one side of the top surface of the pressure plate (5); The detection unit (2) comprises a liquid tank (21), a liquid pump (22) and a high-pressure air pump (23), wherein the liquid tank (21) is fixed to the rear side of the base (1), the liquid pump (22) is placed inside the liquid tank (21), the liquid outlet pipe of the liquid pump (22) is connected to the liquid inlet on the top surface of the pressing plate (5), the high-pressure air pump (23) is fixed to the top surface of the bracket (3), and the air outlet pipe of the high-pressure air pump (23) is connected to the air inlet on the top surface of the pressing plate (5); The invention further comprises a controller (8), wherein the controller (8) is arranged on the front side of the base (1), the input ends of the hydraulic rod (4), the liquid pump (22) and the high-pressure air pump (23) are electrically connected to the output end of the controller (8), and the input end of the controller (8) is electrically connected to the output end of an external power supply.

2. A transformer oil tank leak tester according to claim 1, characterized in that: The detection unit (2) further comprises a turbine (24), a worm (25), a motor (26), a support frame (27), an electric telescopic rod (28), a placement frame (29) and a defect camera (210); the support frame (27) is rotatably connected to the inside of the base (1); a turbine (24) is fixed to the outside of the support frame (27); the motor (26) is arranged on the front side of the base (1); the output shaft of the motor (26) is connected to the front end of the worm (25); the worm (25) is meshed with the turbine (24); the electric telescopic rod (28) is fixed to the left and right sides of the top surface of the support frame (27); a placement frame (29) is provided at the top of the electric telescopic rod (28); a defect camera (210) is placed inside the placement frame (29); and the input ends of the motor (26), the electric telescopic rod (28) and the defect camera (210) are electrically connected to the output end of the controller (8).

3. A transformer oil tank leak tester according to claim 1, characterized in that: The detection unit (2) further comprises a negative pressure liquid pump (211) and a liquid leakage groove (212); the negative pressure liquid pump (211) is fixed to the left side of the liquid tank (21); a liquid inlet pipe of the negative pressure liquid pump (211) is connected to a liquid outlet on the left side of the base (1); the liquid leakage groove (212) is evenly arranged on the top surface of the base (1); and an input end of the negative pressure liquid pump (211) is electrically connected to an output end of the controller (8).

4. A transformer oil tank leak tester according to claim 1, characterized in that: The detection unit (2) further comprises a liquid level sensor (213) and a pressure sensor (214); the liquid level sensor (213) is fixed on the left side of the liquid tank (21); the pressure sensor (214) is installed on the front side of the top surface of the pressure plate (5); the output ends of the liquid level sensor (213) and the pressure sensor (214) are electrically connected to the input end of the controller (8).

5. The transformer oil tank leak tester according to claim 1, characterized in that: It also includes a lighting lamp (6), which is mounted on the front side of the bracket (3), and the input end of the lighting lamp (6) is electrically connected to the output end of the controller (8).

6. A transformer oil tank leak tester according to claim 1, characterized in that: It also includes a sealing ring (7), which is fixed on the outer side of the bottom surface of the pressing plate (5), and the sealing ring (7) is made of rubber.

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