CN222652477U - Oil immersed transformer leakproofness check out test set - Google Patents

Abstract

The utility model discloses oil immersed transformer tightness detection equipment which comprises an inspection box, wherein an oil tank is arranged at the bottom of an inner cavity of the inspection box through a placing plate, an oil inlet pipe is communicated with the left side of the top of the oil tank, an oil outlet pipe is communicated with the right side of the oil tank, and a valve I is movably connected to the pipe orifice of the oil outlet pipe. The valve IV and the valve I are closed firstly, the valve III and the valve II are opened, the detection liquid is pumped into the communicating pipe through the starting of the pump body and enters the oil tank through the oil inlet pipe, after the required detection liquid is injected, the valve III and the valve II are closed, the pump body is closed, the initial pressure value is observed through the pressure gauge, after a period of time, the pressure is observed through the pressure gauge, if the pressure value of the pressure gauge is normal, the oil tank is not provided with leakage points, if the pressure value is reduced, the leakage points are proved to be present, only the valve IV and the valve I are required to be opened, and the pump body is started to only pump the detection liquid in the oil tank.

Description

Oil immersed transformer leakproofness check out test set

Technical Field

The utility model belongs to the technical field of oil-immersed transformer detection, and particularly relates to an oil-immersed transformer tightness detection device.

Background

The transformer body (winding and iron core) of the oil immersed transformer is arranged in an oil tank filled with transformer oil, the oil tank is welded by steel plates, the oil tank of the medium-sized and small-sized transformers consists of a tank shell and a tank cover, the transformer body is arranged in the tank shell, and the tank cover is opened to lift out the transformer body for maintenance.

In order to ensure normal use of the transformer, the oil tank needs to be subjected to tightness detection, the oil tank is immersed in water in the traditional operation, the bubbling point is observed to determine the position of the leakage point, the oil tank needs to be completely immersed in the water in the operation, the leakage point cannot be clearly observed in the water, and therefore difficulty is increased for detection, and therefore, detection equipment for observing and detecting in a mode of injecting detection liquid into the oil tank is provided to solve the defects.

Disclosure of utility model

The utility model aims to provide an oil immersed transformer tightness detection device which has the purpose of conveniently observing leakage points so as to solve the problems in the background technology.

The technical scheme includes that the oil immersed transformer tightness detection device comprises an inspection box, an oil tank is arranged at the bottom of an inner cavity of the inspection box through a placing plate, an oil inlet pipe is connected to the left side of the top of the oil tank, an oil outlet pipe is connected to the right side of the oil tank, a first valve is movably connected to a pipe orifice of the oil outlet pipe, a connecting plate is fixedly connected to the left side of the top of the inspection box, a filter box and a pump body are sequentially and fixedly arranged in front of and behind the top of the connecting plate, a second valve and a pressure gauge are sequentially arranged on the surface of a liquid outlet pipe of the pump body from left to right, the pipe orifice of the liquid outlet pipe is communicated with the top of the oil inlet pipe through a communicating pipe, a three-way pipe is connected to the liquid inlet pipe of the pump body, a third valve is movably connected to the port of the back of the three-way pipe, a fourth valve is connected to the front of the port of the three-way pipe, one end of the connecting pipe far away from the three-way pipe is communicated with the filter box, a second valve is connected to the right side of the filter box, and one end of the connecting pipe is far from the filter box is communicated with the port of the filter box.

Preferably, the front and rear positions of the inspection box are both embedded and fixedly connected with an observation window, and the observation window is a visual observation window.

Preferably, the bottom on the right side of the inspection box is communicated with a drain pipe, and a pipe cover is connected at the pipe orifice of the drain pipe in a threaded manner.

Preferably, the four corners at the top of the placing plate are designed as convex blocks, and the top end surface and the bottom end surface of the placing plate are vertically communicated.

Preferably, the second connecting pipe penetrates through the hollow position inside the placing plate.

Preferably, a filter screen is arranged in the filter box, and the front surface of the filter box is fixedly connected with a box cover through screws.

1. The utility model has the advantages that the valve IV and the valve I are closed firstly, the valve III and the valve II are opened, the detection liquid is pumped into the communicating pipe through the starting of the pump body and enters the oil tank through the oil inlet pipe, after the detection liquid is injected into the oil tank, the valve III and the valve II are closed, the pump body is closed, the initial pressure value is observed through the pressure gauge after a period of time, the pressure of the detection liquid is observed through the pressure gauge, if the pressure value of the pressure gauge is normal, the oil tank is not provided with a leakage point, if the pressure value is reduced, the leakage point is proved to be present, at the moment, the valve IV and the valve I are only required to be opened, the pump body is started, only the detection liquid in the oil tank can be pumped, the detection liquid enters the connecting pipe II through the oil outlet pipe, and enters the connecting pipe I through the filtering of the filtering box, and finally enters the pump body again, and the circulating is performed, so that the detection liquid flows in the oil tank, and the flowing detection liquid can leak from the leakage point, and the leakage point of the oil tank can be conveniently observed.

2. According to the utility model, the observation window is arranged, so that the leakage condition at the bottom of the oil tank can be conveniently observed.

3. The bottom of the right side of the inspection box is communicated with the liquid discharge pipe, so that the detection liquid flowing out of the leakage point can be collected.

4. The top end face and the bottom end face of the placing plate are vertically communicated, so that the installation between the second connecting pipe and the oil outlet pipe is facilitated.

Drawings

Wherein:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the detection box of the present utility model;

FIG. 3 is a schematic illustration of the connection of the filter housing to the pump body of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. The device comprises an inspection box, an oil tank, an oil inlet pipe, an oil outlet pipe, a valve I, a valve 6, a connecting plate, a filter box, a pump body, a valve II, a pressure gauge, a communicating pipe, a three-way pipe, a valve 13, a valve III, a valve IV, a valve 15, a connecting pipe I, a connecting pipe 16, a connecting pipe II, a valve 17, a placing plate, a valve 18, an observation window, a valve 19 and a liquid discharge pipe.

Detailed Description

Hereinafter, an embodiment of the oil-immersed transformer tightness detection apparatus of the present utility model will be described with reference to the accompanying drawings.

Embodiment one:

Fig. 1-3 show an oil immersed transformer tightness detection device according to an embodiment of the utility model, which comprises an inspection box 1, wherein an oil tank 2 is placed at the bottom of an inner cavity of the inspection box 1 through a placement plate 17, an observation window 18 is fixedly connected at the front and rear positions of the inspection box 1, the observation window 18 is a visual observation window, the leakage condition at the bottom of the oil tank 2 can be conveniently observed through the arrangement of the observation window 18, the bottom of the right side of the inspection box 1 is communicated with a liquid discharge pipe 19, the pipe mouth of the liquid discharge pipe 19 is in threaded connection with a pipe cover, the bottom of the right side of the inspection box 1 is communicated with the liquid discharge pipe 19 through the arrangement of the liquid discharge pipe 19, the detection liquid flowing out from a leakage point can be collected, an oil inlet pipe 3 is communicated with the left side of the top of the oil tank 2, an oil outlet pipe 4 is communicated with the right side of the oil outlet pipe 4, a valve 5 is movably connected at the pipe mouth of the oil outlet pipe 4, and a connecting plate 6 is fixedly connected with the left side of the top of the inspection box 1, the front and back positions of the top of the connecting plate 6 are sequentially and fixedly provided with a filter screen, the inside of the filter box 7 is provided with a filter screen, the front surface of the filter box 7 is fixedly connected with a box cover through screws, the filter box 7 is of an existing structure, flowing impurities in the oil tank 2 are filtered through the filter screen, the surface of a liquid outlet pipe of the pump body 8 is sequentially provided with a valve II 9 and a pressure gauge 10 from left to right, the pipe orifice of the liquid outlet pipe is communicated with the top of the oil inlet pipe 3 through a communicating pipe 11, a liquid inlet pipe of the pump body 8 is communicated with a three-way pipe 12, a port of the three-way pipe 12 at the back is movably connected with a valve III 13, a port of the three-way pipe 12 at the front is movably connected with a valve IV 14, the front surface of the three-way pipe 12 is communicated with a connecting pipe I15, one end of the connecting pipe I15 far away from the three-way pipe 12 is communicated with the filter box 7, the right side of the filter box 7 is communicated with a connecting pipe II 16, one end of the connecting pipe II 16 far away from the filter box 7 is communicated with the port of the oil outlet pipe 4, the valve IV 14 and the valve I5 are closed firstly, the valve III 13 and the valve II 9 are opened, the detection liquid is pumped into the connecting pipe 11 through the starting of the pump body 8 and enters the oil tank 2 through the oil inlet pipe 3, after the detection liquid is injected into the needed detection liquid, the valve III 13 and the valve II 9 are closed, the pump body 8 is closed, the pressure gauge 10 is used for observing an initial pressure value after a period of time, if the pressure value of the pressure gauge 10 is normal, the oil tank 2 is indicated to have no leakage point, if the pressure value is reduced, the leakage point is proved to occur, at the moment, the valve IV 14 and the valve I5 are only required to be opened, the pump body 8 is started, the detection liquid in the oil tank 2 can only be pumped, the detection liquid enters the connecting pipe II 16 through the oil outlet pipe 4 and enters the connecting pipe I15 through the filtering of the filter box 7, and finally enters the pump body 8, the detection liquid flows in the oil tank 2 in such a circulating way, the flowing detection liquid can leak from the oil tank, and the oil tank can be conveniently observed, and the detection liquid can be oil liquid with small density.

Embodiment two:

Fig. 1-3 show an oil immersed transformer tightness detection device according to an embodiment of the utility model, the oil immersed transformer tightness detection device comprises an inspection box 1, an oil tank 2 is placed at the bottom of an inner cavity of the inspection box 1 through a placing plate 17, an oil inlet pipe 3 is communicated with the left side of the top of the oil tank 2, an oil outlet pipe 4 is communicated with the right side of the oil tank 2, a valve I5 is movably connected to the pipe orifice of the oil outlet pipe 4, a connecting plate 6 is fixedly connected to the left side of the top of the inspection box 1, a filter box 7 and a pump body 8 are sequentially and fixedly installed at the front and back positions of the top of the connecting plate 6, a valve II 9 and a pressure gauge 10 are sequentially arranged on the surface of the liquid outlet pipe of the pump body 8 from left to right, the pipe orifice of the liquid outlet pipe is communicated with the top of the oil inlet pipe 3 through a communicating pipe 11, a valve III 13 is movably connected to the port of the liquid inlet pipe of the pump body 8, a valve IV 14 is movably connected to the port of the front of the three-way pipe 12, a connecting pipe I15 is connected to the front of the three-way pipe 12, one end far away from the three-way pipe 12 is communicated with the filter box 7, a connecting pipe II 16 is communicated with the right side of the filter box 7, a connecting pipe 16 is connected to the connecting pipe 16 is arranged at the bottom of the connecting pipe II 16 is arranged at the front and back of the top of the three-way 12, the connecting pipe 16 is arranged at the top of the connecting pipe II is far from the top end 16, the top end face is far from the top end 17, the top end face of the connecting pipe 17 is conveniently penetrates through the top end 17, and the top end 17 is arranged at the top end face of the top end of the top is convenient to be placed through the top and bottom of the top end 17, and has a top is convenient to be placed.

The utility model has the working principle that when the tightness is required to be detected, the oil tank 2 is placed in the inspection box 1 through the hoisting tool, the oil inlet pipe 3 is connected with the communicating pipe 11, the oil outlet pipe 4 is connected with the connecting pipe II 16, the valve IV 14 and the valve I5 are closed firstly, the valve III 13 and the valve II 9 are opened, the pump body 8 is started, the detection liquid is pumped into the communicating pipe 11 and enters the oil tank 2 through the oil inlet pipe 3, after the required detection liquid is injected, the valve III 13 and the valve II 9 are closed, the pump body 8 is closed, the initial pressure value is observed through the pressure gauge 10, after a period of time, the pressure gauge 10 is used for observing the pressure, if the pressure value of the pressure gauge 10 is normal, the oil tank 2 is not provided with a leakage point, if the pressure value is reduced, the leakage point is proved to be generated, at the moment, the valve IV 14 and the valve I5 are only opened, the detection liquid in the oil tank 8 is pumped into the connecting pipe II 16 through the oil outlet pipe 4, the detection liquid is filtered into the first 15 through the filtering box 7, and finally the detection liquid enters the pump body 8, and the circulation is enabled to flow in the oil tank, and the leakage point can be conveniently observed through the leakage point.

Claims (6)

1. An oil-immersed transformer sealing detection device, comprising an inspection box (1), wherein an oil tank (2) is placed at the bottom of the inner cavity of the inspection box (1) via a placement plate (17), an oil inlet pipe (3) is connected to the left side of the top of the oil tank (2), an oil outlet pipe (4) is connected to the right side of the oil tank (2), a valve (5) is movably connected to the pipe mouth of the oil outlet pipe (4), and the inspection box (1) is characterized in that a connecting plate (6) is fixedly connected to the left side of the top of the inspection box (1), a filter box (7) and a pump body (8) are fixedly installed in sequence at the front and rear positions of the top of the connecting plate (6), and a valve (9) and a pressure gauge (10) are arranged on the surface of the liquid outlet pipe of the pump body (8) from left to right. ), and the outlet of the liquid outlet pipe is connected to the top of the oil inlet pipe (3) through a connecting pipe (11), the liquid inlet pipe of the pump body (8) is connected to a three-way pipe (12), a valve three (13) is movably connected to the rear end of the three-way pipe (12), a valve four (14) is movably connected to the front end of the three-way pipe (12), a connecting pipe one (15) is connected to the front of the three-way pipe (12), an end of the connecting pipe one (15) away from the three-way pipe (12) is connected to the filter box (7), a connecting pipe two (16) is connected to the right side of the filter box (7), and an end of the connecting pipe two (16) away from the filter box (7) is connected to the port of the oil outlet pipe (4). 2. An oil-immersed transformer sealing detection device according to claim 1, characterized in that observation windows (18) are embedded and fixedly connected at the front and rear positions of the inspection box (1), and the observation windows (18) are visual observation windows. 3. An oil-immersed transformer sealing detection device according to claim 1, characterized in that the bottom of the right side of the inspection box (1) is connected to a drain pipe (19), and a pipe cover is threadedly connected to the pipe mouth of the drain pipe (19). 4. The oil-immersed transformer sealing detection device according to claim 1 is characterized in that the four corners of the top of the placement plate (17) are all designed as convex blocks, and the top and bottom end surfaces of the placement plate (17) are connected from top to bottom. 5. The oil-immersed transformer sealing detection device according to claim 4, characterized in that the second connecting pipe (16) passes through the hollow position inside the placement plate (17). 6. The oil-immersed transformer sealing detection device according to claim 1, characterized in that a filter screen is arranged inside the filter box (7), and a box cover is fixedly connected to the front of the filter box (7) by screws.