Debugging workbench for fire extinguishing device of transformer

Abstract

The utility model relates to the technical field of transformer fire extinguishing, in particular to a debugging workbench for a transformer fire extinguishing device, which is used for cooling high-temperature oil and debugging the transformer nitrogen fire extinguishing device in sequence when being used. When the high-temperature oil liquid in the first box body cannot be cooled, the high-temperature oil liquid in the first box body enters the second box body through the oil drainage assembly for oil drainage, and safety is improved; comprising a bottom plate, a first box body, a second box body, a pressure gauge and a mounting seat, the first box body and the second box body are arranged at the top end of the bottom plate, the pressure gauge and the mounting seat are arranged at the top end of the first box body, the oil drainage assembly is arranged between the first box body and the second box body, the butt joint assembly is arranged at the right end of the first box body, and the oil return assembly is arranged at the right end of the second box body. An oil return assembly is arranged between the first box body and the second box body, and an electric heating wire is arranged in the first box body.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer fire extinguishing, in particular to a transformer fire extinguishing device debugging workbench. Background Art

[0002] Transformers are widely used in workshops, docks, CNC machinery and other places. They consume a lot of electricity during use, which makes the transformer work at full load for a long time. In addition, the transformer generates a lot of heat when it is working. During the operation of the transformer, it is possible to catch fire due to faults such as short circuit and excessive oil temperature. When the transformer fails or is seriously overloaded, the heat generated by the coil and the core will rise sharply, making it very easy to cause a fire. Therefore, it must be equipped with an automatic fire extinguishing device, and the transformer nitrogen filling fire extinguishing device came into being.

[0003] In the prior art, a patent document with a publication number of CN112957637B discloses a transformer fire extinguishing device capable of preventing false operation, comprising a storage body, an upper connecting terminal seat, a built-in fire extinguishing component, a water supply pump, a delivery pipe, a storage pump body and a fire water source storage box, wherein the upper connecting terminal seat is sealed and fixedly connected to the storage body, and is provided on the outside of the transformer as a protective cover; a built-in fire extinguishing component is provided on the upper inner side of the upper connecting terminal seat, and a fire monitoring device is provided on one inner side of the storage body; a delivery pipe is connected to one outer side of the upper connecting terminal seat, and one end of the delivery pipe is communicated with the fire water source storage box; a storage pump is also connected to one outer side of the storage body, and the storage body supplies air and discharges the inside of the storage body when the operating temperature of the transformer approaches the warning value.

[0004] During use, it was found that the above-mentioned device needs to be tested before use. The existing testing equipment is cumbersome to operate, less convenient, and requires high skills from the staff. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a transformer fire extinguishing device debugging workbench with improved convenience.

[0006] The utility model discloses a transformer fire extinguishing device debugging workbench, comprising a bottom plate, a No. 1 box, a No. 2 box, a pressure gauge and a mounting seat, wherein the No. 1 box and the No. 2 box are arranged at the top of the bottom plate, the No. 1 box is provided with a pressure gauge and a mounting seat at the top of the No. 1 box, and further comprising an oil drain component, a docking component and an oil return component, an oil drain component is arranged between the No. 1 box and the No. 2 box, a docking component is arranged at the right end of the No. 1 box, an oil return component is arranged between the No. 1 box and the No. 2 box, and an electric heating wire is arranged inside the No. 1 box; when in use, the output end of the transformer nitrogen filling fire extinguishing device is connected with the docking component, and the pressure sensor on the transformer nitrogen filling fire extinguishing device is installed on the mounting seat , start the electric heating wire, the electric heating wire heats the oil inside the No. 1 box, simulating the generation of high-temperature oil when the transformer is short-circuited. Then the pressure sensor transmits the electrical signal to the solenoid valve on the transformer nitrogen fire extinguishing device, and the solenoid valve opens, so that the transformer nitrogen fire extinguishing device injects nitrogen into the No. 1 box through the docking assembly to cool the high-temperature oil. The transformer nitrogen fire extinguishing device is debugged in turn. When the transformer nitrogen fire extinguishing device fails during the test and cannot cool the high-temperature oil inside the No. 1 box, the high-temperature oil inside the No. 1 box enters the No. 2 box through the oil drain assembly for oil draining, thereby improving safety.

[0007] Preferably, the docking assembly includes an air intake pipe, a No. 1 valve and a docking flange. The right end of the No. 1 box is provided with an air intake pipe, the input end of the air intake pipe is provided with a docking flange, and the No. 1 valve is installed on the air intake pipe; the input end of the air intake pipe is connected with the input end of the transformer nitrogen fire extinguishing device through the docking flange, and the No. 1 valve can be opened to improve convenience.

[0008] Preferably, the oil leakage assembly includes a shell, a No. 1 oil pipeline, a No. 2 oil pipeline, a light bar, a spring and a sealing plate. The left end of the No. 1 box is connected to the input end of the No. 1 oil pipeline, the output end of the No. 1 oil pipeline is connected to the input end of the shell, the output end of the shell is connected to the input end of the No. 2 oil pipeline, and the output end of the No. 2 oil pipeline is connected to the right end of the No. 2 box. Two groups of light bars are arranged inside the shell. The sealing plates are slidingly connected to the two groups of light bars respectively. The sealing plate is sealed with the input end of the shell. A spring is mounted on the outside of the light bar, and the spring is on the left side of the sealing plate. The sealing plate seals the input end of the shell under the action of the spring elastic force. When the nitrogen fire extinguishing device of the transformer fails and the internal pressure of the No. 1 box is too large, the internal pressure of the No. 1 box will push the sealing plate open, so that the hot oil inside the No. 1 box enters the No. 2 box for oil leakage, thereby improving safety.

[0009] Preferably, the oil return assembly includes an oil pump, an oil inlet pipe, an oil return pipe and an oil return valve. An oil pump is arranged on the top of the base plate. The input end of the oil pump is connected with the output end of the No. 2 tank through the oil inlet pipe, and the output end of the oil pump is connected with the input end of the No. 1 tank through the oil return pipe. An oil return valve is arranged on the oil return pipe. Open the oil return valve and start the oil pump, so that the oil inside the No. 2 tank enters the No. 2 tank through the oil inlet pipe and the oil return pipe, thereby completing the oil return operation.

[0010] Preferably, it also includes universal wheels and brake plates. Multiple sets of universal wheels are arranged at the bottom end of the base plate, and each set of universal wheels is respectively provided with a set of brake plates; the multiple sets of universal wheels cooperate with each other to move the base plate, and the multiple sets of brake plates brake the universal wheels to improve stability.

[0011] Preferably, it also includes a three-way pipe and an oil drain valve, one set of input ends of the three-way pipe is connected to the front end of tank No. 1, and the other end of the input end of the three-way pipe is connected to the front end of tank No. 2, and two sets of oil drain valves are arranged on the three-way pipe; when the oil in tank No. 1 or tank No. 2 needs to be discharged and replaced, the staff can open the corresponding oil drain valve to drain the oil.

[0012] Preferably, a liquid level meter is further included. The front end of the No. 1 tank is provided with a liquid level meter. When performing the oil return operation, the staff observes the oil storage situation inside the No. 1 tank through the liquid level meter, thereby improving convenience.

[0013] Compared with the prior art, the utility model has the following beneficial effects: when in use, the output end of the transformer nitrogen filling fire extinguishing device is connected to the docking assembly, the pressure sensor on the transformer nitrogen filling fire extinguishing device is installed on the mounting seat, the electric heating wire is started, and the electric heating wire heats the oil inside the No. 1 box to simulate the generation of high-temperature oil when the transformer is short-circuited. After that, the pressure sensor transmits an electrical signal to the solenoid valve on the transformer nitrogen fire extinguishing device, and the solenoid valve opens, so that the transformer nitrogen fire extinguishing device injects nitrogen into the No. 1 box through the docking assembly to cool the high-temperature oil. The transformer nitrogen fire extinguishing device is debugged in turn. When a fault occurs during the test of the transformer nitrogen fire extinguishing device and the high-temperature oil inside the No. 1 box cannot be cooled, the high-temperature oil inside the No. 1 box enters the No. 2 box through the oil drain assembly for oil draining, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0015] Figure 2 It is an enlarged structural schematic diagram of the shell and sealing plate and other structures;

[0016] Figure 3 It is an enlarged structural diagram of the three-way pipe and the oil drain valve structure;

[0017] Figure 4 It is a second axonometric structural schematic diagram of the utility model.

[0018] Markings in the attached figure: 1. bottom plate; 2. box body No. 1; 3. box body No. 2; 4. pressure gauge; 5. air inlet pipe; 6. valve No. 1; 7. docking flange; 8. shell; 9. oil pipeline No. 1; 10. oil pipeline No. 2; 11. smooth bar; 12. spring; 13. sealing plate; 14. oil pump; 15. oil inlet pipe; 16. oil return pipe; 17. oil return valve; 18. universal wheel; 19. brake plate; 20. three-way pipe; 21. oil drain valve; 22. level gauge; 23. mounting seat. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Example 1

[0021] like Figure 1 and Figure 4 As shown, a transformer fire extinguishing device debugging workbench of the utility model comprises a bottom plate 1, a No. 1 box body 2, a No. 2 box body 3, a pressure gauge 4 and a mounting seat 23, the top of the bottom plate 1 is provided with a No. 1 box body 2 and a No. 2 box body 3, the top of the No. 1 box body 2 is provided with a pressure gauge 4 and a mounting seat 23, and also comprises an oil drain component, a docking component and an oil return component, an oil drain component is provided between the No. 1 box body 2 and the No. 2 box body 3, a docking component is provided at the right end of the No. 1 box body 2, an oil return component is provided between the No. 1 box body 2 and the No. 2 box body 3, and an electric heating wire is provided inside the No. 1 box body 2;

[0022] like Figure 1 , Figure 2 and Figure 4 As shown, the docking assembly includes an air intake pipe 5, a No. 1 valve 6 and a docking flange 7. The right end of the No. 1 box 2 is provided with an air intake pipe 5, the input end of the air intake pipe 5 is provided with a docking flange 7, and the No. 1 valve 6 is installed on the air intake pipe 5;

[0023] like Figure 1 and Figure 4As shown, the oil leakage assembly includes a shell 8, a No. 1 oil pipeline 9, a No. 2 oil pipeline 10, a light rod 11, a spring 12 and a sealing plate 13. The left end of the No. 1 box 2 is connected to the input end of the No. 1 oil pipeline 9, the output end of the No. 1 oil pipeline 9 is connected to the input end of the shell 8, the output end of the shell 8 is connected to the input end of the No. 2 oil pipeline 10, and the output end of the No. 2 oil pipeline 10 is connected to the right end of the No. 2 box 3. Two groups of light rods 11 are arranged inside the shell 8, and the sealing plates 13 are slidably connected to the two groups of light rods 11 respectively. The sealing plate 13 is sealed with the input end of the shell 8, and a spring 12 is mounted on the outside of the light rod 11, and the spring 12 is on the left side of the sealing plate 13.

[0024] When used in this embodiment, the input end of the air inlet pipe 5 is connected to the input end of the transformer nitrogen fire extinguishing device through the docking flange 7, and the No. 1 valve 6 is opened. The pressure sensor on the transformer nitrogen fire extinguishing device is installed on the mounting seat 23, and the electric heating wire is started. The electric heating wire heats the oil inside the No. 1 box 2 to simulate the generation of high-temperature oil when the transformer is short-circuited. After that, the pressure sensor transmits an electrical signal to the solenoid valve on the transformer nitrogen fire extinguishing device, and the solenoid valve is opened, so that the transformer nitrogen fire extinguishing device injects nitrogen into the No. 1 box 2 through the docking assembly. The high-temperature oil is cooled inside the No. 1 box 2, and the transformer nitrogen fire extinguishing device is debugged in turn. When the transformer nitrogen fire extinguishing device fails during testing and cannot cool the high-temperature oil inside the No. 1 box 2, the sealing plate 13 seals the input end of the shell 8 under the action of the elastic force of the spring 12. When the transformer nitrogen fire extinguishing device fails and the internal pressure of the No. 1 box 2 is too high, the pressure inside the No. 1 box 2 pushes the sealing plate 13 open, thereby allowing the hot oil inside the No. 1 box 2 to enter the No. 2 box 3 for oil leakage.

[0025] Example 2

[0026] like Figure 1 and Figure 4 As shown, a transformer fire extinguishing device debugging workbench of the utility model comprises a bottom plate 1, a No. 1 box body 2, a No. 2 box body 3, a pressure gauge 4 and a mounting seat 23, the top of the bottom plate 1 is provided with a No. 1 box body 2 and a No. 2 box body 3, the top of the No. 1 box body 2 is provided with a pressure gauge 4 and a mounting seat 23, and also comprises an oil drain component, a docking component and an oil return component, an oil drain component is provided between the No. 1 box body 2 and the No. 2 box body 3, a docking component is provided at the right end of the No. 1 box body 2, an oil return component is provided between the No. 1 box body 2 and the No. 2 box body 3, and an electric heating wire is provided inside the No. 1 box body 2;

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, the docking assembly includes an air intake pipe 5, a No. 1 valve 6 and a docking flange 7. The right end of the No. 1 box 2 is provided with an air intake pipe 5, the input end of the air intake pipe 5 is provided with a docking flange 7, and the No. 1 valve 6 is installed on the air intake pipe 5;

[0028] like Figure 1 and Figure 4 As shown, the oil drain assembly includes a housing 8, a No. 1 oil pipeline 9, a No. 2 oil pipeline 10, a light bar 11, a spring 12 and a sealing plate 13. The left end of the No. 1 housing 2 is connected to the input end of the No. 1 oil pipeline 9, the output end of the No. 1 oil pipeline 9 is connected to the input end of the housing 8, the output end of the housing 8 is connected to the input end of the No. 2 oil pipeline 10, and the output end of the No. 2 oil pipeline 10 is connected to the right end of the No. 2 housing 3. Two groups of light bars 11 are arranged inside the housing 8, and the sealing plates 13 are respectively slidably connected to the two groups of light bars 11. The sealing plate 13 is sealed with the input end of the housing 8, and the spring 12 is sleeved on the outside of the light bar 11, and the spring 12 is on the left side of the sealing plate 13;

[0029] like Figure 1 As shown, the oil return assembly includes an oil pump 14, an oil inlet pipe 15, an oil return pipe 16 and an oil return valve 17. The oil pump 14 is arranged on the top of the bottom plate 1. The input end of the oil pump 14 is connected to the output end of the second tank 3 through the oil inlet pipe 15. The output end of the oil pump 14 is connected to the input end of the first tank 2 through the oil return pipe 16. The oil return valve 17 is arranged on the oil return pipe 16.

[0030] like Figures 1 to 4 As shown, it also includes universal wheels 18, brake plates 19, three-way pipes 20, oil drain valves 21 and liquid level gauges 22. Multiple sets of universal wheels 18 are arranged at the bottom end of the base plate 1, and each set of universal wheels 18 is respectively provided with a set of brake plates 19. One set of input ends of the three-way pipe 20 is connected to the front end of the No. 1 box 2, and the other end of the input end of the three-way pipe 20 is connected to the front end of the No. 2 box 3. Two sets of oil drain valves 21 are arranged on the three-way pipe 20, and a liquid level gauge 22 is arranged at the front end of the No. 1 box 2.

[0031] In this embodiment, when in use, the input end of the air inlet pipe 5 is connected to the input end of the transformer nitrogen fire extinguishing device through the docking flange 7, and the No. 1 valve 6 is opened. The pressure sensor on the transformer nitrogen fire extinguishing device is installed on the mounting seat 23, and the electric heating wire is started. The electric heating wire heats the oil inside the No. 1 box 2 to simulate the generation of high-temperature oil when the transformer is short-circuited. After that, the pressure sensor transmits an electrical signal to the solenoid valve on the transformer nitrogen fire extinguishing device, and the solenoid valve is opened, so that the transformer nitrogen fire extinguishing device injects nitrogen into the No. 1 box 2 through the docking assembly to cool the high-temperature oil. The transformer nitrogen fire extinguishing device is debugged in turn. When a fault occurs during the test of the transformer nitrogen fire extinguishing device, When the high-temperature oil inside the No. 1 tank 2 cannot be cooled, the sealing plate 13 seals the input end of the shell 8 under the action of the elastic force of the spring 12. When the nitrogen fire extinguishing device of the transformer fails and the internal pressure of the No. 1 tank 2 is too large, the internal pressure of the No. 1 tank 2 will push the sealing plate 13 open, so that the hot oil inside the No. 1 tank 2 enters the No. 2 tank 3 for oil leakage, open the oil return valve 17, start the oil pump 14, so that the oil inside the No. 2 tank 3 enters the No. 2 tank 3 through the oil inlet pipe 15 and the oil return pipe 16, and the oil return operation is completed. When it is necessary to discharge and replace the oil in the No. 1 tank 2 or the No. 2 tank 3, the staff can open the corresponding oil drain valve 21 to drain the oil.

[0032] The pressure gauge 4 and the oil pump 14 of the transformer fire extinguishing device debugging workbench of the utility model are purchased on the market, and the technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in the field to make creative labor.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A transformer fire extinguishing device debugging workbench, comprising a base plate (1), a first box body (2), a second box body (3), a pressure gauge (4) and a mounting seat (23), wherein the first box body (2) and the second box body (3) are arranged on the top of the base plate (1), and the pressure gauge (4) and the mounting seat (23) are arranged on the top of the first box body (2), characterized in that: It also comprises an oil drain component, a docking component and an oil return component. The oil drain component is arranged between the first box (2) and the second box (3). The docking component is arranged at the right end of the first box (2). The oil return component is arranged between the first box (2) and the second box (3). An electric heating wire is arranged inside the first box (2).

2. A transformer fire extinguishing device debugging workbench as claimed in claim 1, characterized in that: The docking assembly comprises an air intake pipe (5), a first valve (6) and a docking flange (7); the right end of the first box body (2) is provided with an air intake pipe (5); the input end of the air intake pipe (5) is provided with a docking flange (7); and the first valve (6) is installed on the air intake pipe (5).

3. A transformer fire extinguishing device debugging workbench as claimed in claim 1, characterized in that: The oil leakage component comprises a shell (8), a No. 1 oil pipeline (9), a No. 2 oil pipeline (10), a smooth rod (11), a spring (12) and a sealing plate (13); the left end of the No. 1 box (2) is connected to the input end of the No. 1 oil pipeline (9); the output end of the No. 1 oil pipeline (9) is connected to the input end of the shell (8); the output end of the shell (8) is connected to the input end of the No. 2 oil pipeline (10); the output end of the No. 2 oil pipeline (10) is connected to the right end of the No. 2 box (3); two groups of smooth rods (11) are arranged inside the shell (8); the sealing plate (13) is slidably connected to the two groups of smooth rods (11) respectively; the sealing plate (13) is sealed with the input end of the shell (8); a spring (12) is sleeved on the outside of the smooth rod (11); and the spring (12) is on the left side of the sealing plate (13).

4. A transformer fire extinguishing device debugging workbench as claimed in claim 1, characterized in that: The oil return assembly comprises an oil pump (14), an oil inlet pipe (15), an oil return pipe (16) and an oil return valve (17). The oil pump (14) is arranged at the top of the bottom plate (1). The input end of the oil pump (14) is connected to the output end of the second tank (3) through the oil inlet pipe (15). The output end of the oil pump (14) is connected to the input end of the first tank (2) through the oil return pipe (16). The oil return valve (17) is arranged on the oil return pipe (16).

5. A transformer fire extinguishing device debugging workbench as claimed in claim 1, characterized in that: It also comprises universal wheels (18) and brake plates (19). A plurality of sets of universal wheels (18) are arranged at the bottom end of the base plate (1), and a set of brake plates (19) are arranged on each set of universal wheels (18).

6. A transformer fire extinguishing device debugging workbench as claimed in claim 1, characterized in that: It also includes a three-way pipe (20) and an oil drain valve (21), wherein one input end of the three-way pipe (20) is connected to the front end of the first tank (2), and the other input end of the three-way pipe (20) is connected to the front end of the second tank (3), and two groups of oil drain valves (21) are arranged on the three-way pipe (20).

7. A transformer fire extinguishing device debugging workbench as claimed in claim 2, characterized in that: It also includes a liquid level meter (22), and the front end of the first box body (2) is provided with the liquid level meter (22).

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