Transformer oil-submerged pump mounting and dismounting device and using method

Abstract

The invention discloses a transformer oil-submerged pump mounting and dismounting device and a using method, the transformer oil-submerged pump mounting and dismounting device comprises a jacking device and an oil cylinder, the oil cylinder is fixedly connected with the jacking device and provides jacking power for the jacking device, the jacking device comprises a main plate, a plurality of telescopic cylinders are arranged on the main plate, and a bearing bottom plate is movably arranged at the tops of the telescopic cylinders. The device has the beneficial effects that (1) the oil-submerged pump is lifted and jacked through each independent telescopic cylinder, lifting of a certain telescopic cylinder can be independently controlled, lifting of the telescopic cylinders can also be integrally controlled, the number requirement of operators can be reduced through the local fine adjustment effect of universal wheels, the installation and alignment time of the oil-submerged pump can also be greatly shortened, and the installation and alignment efficiency of the oil-submerged pump is improved; the mounting and dismounting efficiency of the oil-submerged pump is improved; and (2) the oil-submerged pump can be firmly fixed through the fixing device, abnormal movement of the oil-submerged pump is prevented, the safety operation risk of field operation personnel can be effectively reduced, and meanwhile, more time and labor are saved.

Description

Technical Field

[0001] The invention belongs to the technical field of submersible pump maintenance devices, and in particular relates to a transformer submersible pump installation and disassembly device and a use method. Background Art

[0002] The transformer is one of the main equipment in the power system. It is expensive and plays an important role. The cooling system is an important part of the large transformer, and its operating status affects the load capacity of the transformer. The submersible oil pump is an important component in the transformer cooling system. If the submersible oil pump fails during operation, it will directly affect the safe operation of the transformer.

[0003] In order to improve the operating conditions of the transformer, it is necessary to replace some flange seals of the submersible pump or replace the submersible pump as a whole during the overhaul of the power transformer or the main transformer cooling system. Both involve the disassembly and installation of the submersible pump. The current practice is: when the submersible pump is disassembled, a wooden block or jack is placed under the submersible pump. After the flange connection of the submersible pump is disconnected, it is manually lifted to a suitable position for maintenance; when the submersible pump is installed after inspection and seal replacement, it is manually lifted to the installation position, a wooden block or jack is placed under the submersible pump, and then the flange connection is manually aligned. This operation method requires manual lifting of the transformer submersible pump. Due to the heavy weight of the submersible pump and the large amount of time and manpower required for the alignment process, not only is the operation risk of the operator high, but the operation is also time-consuming and inefficient. Summary of the invention

[0004] In view of the problems of low maintenance efficiency and safety risks in the above-mentioned prior art, the present invention provides a transformer submersible oil pump installation and disassembly device, and its technical solution is: it includes a jacking device and an oil cylinder, the oil cylinder is fixedly connected to the jacking device to provide jacking power for the jacking device, the jacking device includes a main board, a plurality of telescopic cylinders are arranged on the main board, and the top of the telescopic cylinder is movably provided with a supporting bottom plate.

[0005] As a preferred solution, a restriction area is provided on the supporting bottom plate, a limiting groove is provided in the restriction area, and the limiting groove is movably connected to the limiting device.

[0006] As a preferred solution, the limiting device includes a limiting baffle, a universal wheel is fixedly provided at the bottom of the limiting baffle, and the universal wheel is movably connected to the limiting groove.

[0007] As a preferred solution, a limited anti-slip pad is provided on the inner wall of the limit baffle.

[0008] As a preferred solution, a pulley is provided at the bottom of the jacking device, and the pulley is movably connected to the slide rail.

[0009] As a preferred solution, the limiting device is fixedly connected to the fixing device.

[0010] As a preferred solution, the fixing device includes a column, the lower part of the column is fixedly connected to the limit baffle of the limit device, the upper end of the column is hinged to the fixing ring, and the fixing ring is hinged to the fixing ring switch.

[0011] As a preferred solution, the inner wall of the fixing ring is provided with a fixed anti-slip pad.

[0012] As a preferred solution, the oil cylinder controls each telescopic cylinder individually.

[0013] The present invention also provides a method for using a transformer submersible oil pump installation and removal device, comprising the following steps: S1: Move the lifting device to the specified position on the slide rail 1, turn on the fixing ring switch, open the fixing ring, move the limit baffle to fine-tune its position in the limit groove, and make the limit baffle face the bottom of the submersible pump; S2: Start the telescopic cylinder to raise the supporting bottom plate to the specified position, place the submersible pump in the limit baffle, disconnect the flange connection of the submersible pump, and then lower the telescopic cylinder to move it to a height that is convenient for removal. Through the cooperation of the slide rail and the jacking device, move the submersible pump to the maintenance position to complete the disassembly of the submersible pump; S3: After the inspection is completed, move the submersible oil pump to the installation position, start the telescopic cylinder, move the limit baffle to fine-tune the position, lift the submersible oil pump to the installation position, connect the flange, complete the installation of the submersible oil pump, turn on the fixing ring switch, open the fixing ring, lower the telescopic cylinder, and move the device out of the specified position.

[0014] Beneficial effects of the present invention: (1) The device lifts the submersible oil pump through each independent telescopic cylinder. It can not only control the lifting of a certain telescopic cylinder individually, but also control the lifting of the four telescopic cylinders as a whole. In addition, the local fine-tuning function of the universal wheel can reduce the number of operating personnel required, greatly shorten the installation and alignment time of the submersible oil pump, and improve the efficiency of submersible oil pump installation and removal; (2) The device can firmly fix the submersible pump through the fixing device to prevent the submersible pump from moving abnormally, which can effectively reduce the safety operation risks of on-site workers and save time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the overall structure of the present invention when in use.

[0017] Figure 3 It is a schematic structural diagram of the jacking device in the present invention.

[0018] Figure 4 It is a schematic diagram of the structure of the limiting device in the present invention.

[0019] Figure 5 It is a top view of the restriction area in the present invention.

[0020] Figure 6 It is a schematic diagram of the structure of the fixing device in the present invention.

[0021] In the figure: 1. slide rail; 2. oil cylinder; 3. lifting device; 301. main board; 302. telescopic cylinder; 303. supporting bottom plate; 304. restricted area; 305. limiting device; 3051. limiting anti-skid pad; 3052. limiting baffle; 3053. universal wheel; 306. pulley; 307. limiting groove; 4. fixing device; 401. column; 402. fixing ring; 4021. fixed anti-skid pad; 403. fixing ring switch. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below based on the accompanying drawings and specific embodiments.

[0023] Example like Figure 1-6 The transformer submersible pump installation and disassembly device shown includes a lifting device 3 and an oil cylinder 2. The oil cylinder 2 is fixedly connected to the lifting device 3 to provide lifting power for the lifting device 3. The lifting device 3 includes a main board 301. Four telescopic cylinders 302 are arranged on the main board 301. The top of the telescopic cylinder 302 is movably provided with a supporting bottom plate 303.

[0024] Furthermore, a restriction area 304 is provided on the supporting bottom plate 303, a limiting groove 307 is provided in the restriction area 304, the limiting groove 307 is movably connected to the limiting device 305, and the restriction area 304 limits the abnormal movement range of the submersible pump to prevent the submersible pump from detaching and causing safety hazards.

[0025] Furthermore, the limiting device 305 includes a limiting baffle 3052, and a universal wheel 3053 is fixedly arranged at the bottom of the limiting baffle 3052. The universal wheel 3053 is movably connected to the limiting groove 307. The universal wheel 3053 moves in the limiting groove 307 and will not exceed the range of the limiting groove 307, so the limiting baffle 3052 will not exceed the range of the restriction area 304.

[0026] Furthermore, a limited anti-skid pad 3051 is provided on the inner wall of the limit baffle 3052 to further improve the stability of the submersible pump and prevent abnormal movement.

[0027] Furthermore, a pulley 306 is provided at the bottom of the jacking device 3, and the pulley 306 is movably connected to the slide rail 1, and is used for the overall movement of the jacking device 3 to facilitate the transportation of the submersible pump.

[0028] Furthermore, the limiting device 305 is fixedly connected to the fixing device 4 .

[0029] Furthermore, the fixing device 4 includes a column 401, the lower part of the column 401 is fixedly connected to the limit baffle 3052 of the limit device 305, the upper end of the column 401 is hinged to the fixing ring 402, the fixing ring 402 is hinged to the fixing ring switch 403, the fixing ring 402 is similar to a claw buckle to buckle the submersible pump, and the fixing ring switch 403 is used to lock the fixing ring 402.

[0030] Furthermore, the inner wall of the fixing ring 402 is provided with a fixing anti-skid pad 4021 to further improve the stability of the submersible pump and prevent abnormal movement.

[0031] Furthermore, the oil cylinder 2 controls each telescopic cylinder 302 individually, so that the height of the submersible oil pump can be flexibly adjusted and the height can be adjusted as a whole.

[0032] The above device is used as follows: move the lifting device 3 to the specified position on the slide rail 1, turn on the fixing ring switch 403, open the fixing ring 402, move the limit baffle 3052 to fine-tune its position in the limit groove 307, so that the limit baffle 3052 is directly opposite to the bottom of the submersible pump, start the telescopic cylinder 302, raise the supporting bottom plate 303 to the specified position, place the submersible pump in the limit baffle 3052, disconnect the flange connection of the submersible pump, and then lower the telescopic cylinder 3052. 2 is moved to a height that is convenient for removal. The submersible pump is moved to the maintenance position through the cooperation of the slide rail 1 and the lifting device 3 to complete the disassembly of the submersible pump. After the maintenance is completed, the submersible pump is moved to the installation position, the telescopic cylinder 302 is started, and the limit baffle 3052 is moved to fine-tune the position. The submersible pump is lifted to the installation position, the flange is connected, the installation of the submersible pump is completed, the fixing ring switch 403 is turned on, the fixing ring 402 is opened, the telescopic cylinder 302 is lowered, and the device is moved out of the specified position.

Claims

1. A transformer submersible oil pump installation and disassembly device, characterized in that: The jacking device (3) comprises a lifting device (3) and an oil cylinder (2). The oil cylinder (2) is fixedly connected to the lifting device (3) to provide lifting power for the lifting device (3). The lifting device (3) comprises a main board (301). A plurality of telescopic cylinders (302) are arranged on the main board (301). A supporting bottom plate (303) is movably arranged on the top of the telescopic cylinder (302).

2. A transformer submersible oil pump installation and disassembly device according to claim 1, characterized in that: A restriction area (304) is provided on the supporting bottom plate (303), a limiting groove (307) is provided in the limiting area (304), and the limiting groove (307) is movably connected to the limiting device (305).

3. A transformer submersible oil pump installation and disassembly device according to claim 2, characterized in that: The limiting device (305) comprises a limiting baffle (3052), a universal wheel (3053) is fixedly arranged at the bottom of the limiting baffle (3052), and the universal wheel (3053) is movably connected to the limiting groove (307).

4. A transformer submersible oil pump installation and disassembly device according to claim 3, characterized in that: A limiting anti-slip pad (3051) is provided on the inner wall of the limiting baffle (3052).

5. A transformer submersible oil pump installation and disassembly device according to claim 1, characterized in that: A pulley (306) is provided at the bottom of the lifting device (3), and the pulley (306) is movably connected to the slide rail (1).

6. A transformer submersible oil pump installation and disassembly device according to claim 2, characterized in that: The limiting device (305) is fixedly connected to the fixing device (4).

7. A transformer submersible oil pump installation and disassembly device according to claim 6, characterized in that: The fixing device (4) comprises a column (401), the lower part of the column (401) is fixedly connected to the limit baffle (3052) of the limit device (305), the upper end of the column (401) is hinged to the fixing ring (402), and the fixing ring (402) is hinged to the fixing ring switch (403).

8. A transformer submersible oil pump installation and removal device according to claim 7, characterized in that: The inner wall of the fixing ring (402) is provided with a fixing anti-slip pad (4021).

9. A transformer submersible oil pump installation and removal device according to claim 1, characterized in that: The oil cylinder (2) controls each telescopic cylinder (302) individually.

10. A method for using a transformer submersible oil pump installation and removal device according to any one of claims 1 to 9, characterized in that The following steps are involved: S1: Move the lifting device (3) to a designated position on the slide rail 1, turn on the fixing ring switch (403), open the fixing ring (402), move the limit baffle (3052) to fine-tune its position in the limit groove (307), and make the limit baffle (3052) face the bottom of the submersible pump; S2: Start the telescopic cylinder (302) to raise the supporting base plate (303) to the specified position, place the submersible pump in the limit baffle (3052), disconnect the flange connection of the submersible pump, and then lower the telescopic cylinder (302) to move it to a height that is convenient for removal. By cooperating with the slide rail (1) and the jacking device (3), the submersible pump is moved to the maintenance position, and the disassembly of the submersible pump is completed; S3: After the inspection is completed, the submersible oil pump is moved to the installation position, the telescopic cylinder (302) is started, and the limit baffle (3052) is moved to fine-tune the position, the submersible oil pump is lifted to the installation position, the flange is connected, the installation of the submersible oil pump is completed, the fixing ring switch (403) is turned on, the fixing ring (402) is opened, the telescopic cylinder (302) is lowered, and the device is moved out of the specified position.

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