Search

CN-122017495-A - Device for high-voltage insulation test

CN122017495ACN 122017495 ACN122017495 ACN 122017495ACN-122017495-A

Abstract

The invention discloses a device for a high-voltage insulation test, which comprises a test shell, a lifting storage mechanism and a hydraulic telescopic rod, wherein the test shell is composed of an integrated welding frame at the bottom and a top plate at the top, the integrated welding frame is connected with the top plate in a welding mode, the lifting storage mechanism comprises a transverse plate fixedly connected between inner walls at two sides of the bottom of the integrated welding frame, the lower end of the transverse plate is provided with the hydraulic telescopic rod, the telescopic end of the hydraulic telescopic rod is fixedly connected with the lifting plate, the upper end of the lifting plate is fixedly connected with a connecting cylinder capable of storing insulating oil, and the lower end of the top plate is provided with a detection mechanism matched with the connecting cylinder. The device utilizes the bottom to carry out the input of oil body in actual use, and holistic explosion-proof performance is effectively improved, in addition, has still set up the structure of heating and oil body motion, simulates the insulating oil state in the in-service use environment, accords with the in-service use demand more.

Inventors

  • ZHANG YI
  • ZHANG BO
  • DING DING

Assignees

  • 上海市计量测试技术研究院有限公司

Dates

Publication Date
20260512
Application Date
20260304

Claims (10)

  1. 1. An apparatus for high voltage insulation testing, comprising: The test shell consists of an integrated welding frame (1) at the bottom and a top plate (4) at the top, wherein the integrated welding frame (1) is connected with the top plate (4) in a welding mode; Mechanism is deposited to over-and-under type, over-and-under type deposits mechanism includes diaphragm (5) of fixed connection between the inner wall of integral type welding frame (1) bottom both sides, hydraulic telescoping rod (6) are installed to the lower extreme of diaphragm (5), the expansion end fixedly connected with lifter plate (7) of hydraulic telescoping rod (6), the upper end fixedly connected with of lifter plate (7) can deposit insulating oil's connecting cylinder (11), detection mechanism with connecting cylinder (11) complex is installed to the lower extreme of roof (4).
  2. 2. The device for high-voltage insulation test according to claim 1, wherein a plurality of guide rods (8) are fixedly connected to the upper end of the lifting plate (7), the upper ends of the guide rods (8) penetrate through the top plate (4) and are in sliding connection with the top plate (4), and the sealing door (3) is mounted on the front side of the bottom part of the integrated welding frame (1).
  3. 3. The device for high-voltage insulation test according to claim 1, wherein the detection mechanism comprises a plurality of connecting frames (16) fixedly connected to the lower ends of the top plates (4), a plurality of fixing plates (15) are fixedly connected to the lower ends of the connecting frames (16) together, sealing columns (25) are fixedly connected to the lower ends of the fixing plates (15), annular rubber sealing gaskets are arranged on the outer sides of the sealing columns (25) and matched with the inner sides of the connecting cylinders (11), and two pressurizing electrodes (22) are symmetrically arranged at the lower ends of the sealing columns (25).
  4. 4. The device for high-voltage insulation test according to claim 1, further comprising a gas-liquid flow mechanism, wherein the gas-liquid flow mechanism comprises two piston cylinders (29) symmetrically and fixedly connected to the upper ends of the fixed plates (15), first piston blocks (31) capable of sliding up and down are arranged in the two piston cylinders (29), the lower end of each first piston block (31) is elastically connected with the inner bottom of the piston cylinder (29) through a second spring (32), connecting rods (30) are fixedly connected to the upper ends of the two first piston blocks (31), and connecting strips (24) are fixedly connected to the upper ends of the two connecting rods (30) together.
  5. 5. The device for high-voltage insulation test according to claim 4, wherein the upper end of the fixing plate (15) is symmetrically and fixedly connected with two vertical mounting plates (36), a driving motor (37) is mounted on the front side of the vertical mounting plate (36) positioned on the front side, an output shaft of the driving motor (37) penetrates through the front side vertical mounting plate (36) and is fixedly connected with a cam (38), an output shaft of the driving motor (37) is fixedly connected with a rotating shaft (39), and the rear end of the rotating shaft (39) is rotationally connected with the rear side vertical mounting plate (36).
  6. 6. The device for high-voltage insulation test according to claim 5, wherein the bottom spaces of the two piston cylinders (29) are all communicated with a one-way pipe (23), the other ends of the two one-way pipes (23) are all extended to the lower part of the fixed plate (15), the inner bottom spaces of the two piston cylinders (29) are all communicated with a connecting channel (40), the other ends of the two connecting channels (40) are respectively communicated with a first one-way channel (41) and a second one-way channel (42), the second one-way channel (42) is internally provided with an electric heating ring (9), the other ends of the first one-way channels (41) are communicated with the space above the fixed plate (15), the other ends of the second one-way channels (42) are communicated with the space below the fixed plate (15), one-way valves for the fluid to flow from bottom to top are internally provided with the first one-way channels (41), and the second one-way channels (42) are internally provided with one-way valves for the fluid to flow from bottom to top.
  7. 7. The device for high-voltage insulation test according to claim 6, wherein a piston plate (17) capable of sliding up and down is arranged in the connecting cylinder (11), a communication port (20) is formed in the piston plate (17), a manual valve is mounted on the communication port (20), the inner bottom of the connecting cylinder (11) is elastically connected with the piston plate (17) through a first spring (18), the inner bottom of the connecting cylinder (11) is communicated with the outside through a round port (21), a first normally-closed electromagnetic valve is mounted in the round port (21), a gas pressure sensor (28) is mounted on the side wall of the top space of the connecting cylinder (11), and a display control panel (2) is mounted on the front side of the integrated welding frame (1) and is electrically connected with the gas pressure sensor (28) and the first normally-closed electromagnetic valve.
  8. 8. The device for high voltage insulation test according to claim 7, wherein the first unidirectional passage (41) is internally provided with a normally open electromagnetic valve, and the second unidirectional passage (42) is internally provided with a second normally closed electromagnetic valve.
  9. 9. The device for the high-voltage insulation test according to claim 8, wherein a mounting groove (26) is formed in the inner top of the sealing column (25), the upper end of the piston plate (17) is fixedly connected with the pushing column (19), a self-locking-free push switch (27) is mounted on the inner top of the mounting groove (26), and the self-locking-free push switch (27) is electrically connected with the normally-open electromagnetic valve and the second normally-closed electromagnetic valve.
  10. 10. The device for high-voltage insulation test according to claim 9, characterized in that the upper end of the top plate (4) is fixedly connected with a protection box (12), a cylindrical groove (33) is formed in the right side of the protection box (12), a second piston block (34) capable of sliding left and right is arranged in the cylindrical groove (33), the left side of the second piston block (34) is elastically connected with the left side wall of the cylindrical groove (33) through a third spring (35), a pressure relief pipe (13) is communicated with the left side space of the cylindrical groove (33), a pressure relief valve (14) is arranged in the pressure relief pipe (13), and the other end of the pressure relief pipe (13) penetrates through the sealing column (25).

Description

Device for high-voltage insulation test Technical Field The invention relates to the field of insulating oil detection, in particular to a device for a high-voltage insulating test. Background In order to ensure the use safety of transformer insulating oil, the invention with the publication number of CN118362848A often needs to detect the electrical property of the transformer insulating oil, and provides a transformer insulating oil property detection device, which relates to the field of electrical property test, and comprises a box body and a box door, wherein an oil assembly is arranged on the inner side of the box body, the oil assembly comprises a fixed ring and an oil cup, a lifting assembly is arranged on the box body, the lifting assembly comprises a pressing plate and a motor, a detection assembly is arranged on the pressing plate and the box body, the detection assembly comprises a high-voltage power supply and an electrode rod, a protection assembly is arranged on the box body, the protection assembly comprises a resistor and a clamping sleeve, carbon dioxide in a gas tank can enter the inner side of the oil cup through a through pipe, the inner side movable plate of an air outlet is pushed away and is discharged outwards through the outlet, the transformer insulating oil is isolated from oxygen, the high Wen Zaocheng transformer insulating oil generated after the transformer insulating oil is broken down by a current is prevented from burning or even exploding, and the transformer insulating oil detection device is suitable for the performance detection of the transformer insulating oil; however, the above scheme has the following problems; 1. The operation door body of the device is arranged at the right front side, the connection part of the operation door body and the device is difficult to realize explosion prevention, and although a pressure relief structure is arranged, if the pressure relief structure is too fast, the pressure in the container cannot be timely relieved, or the pressure relief structure is failed, the potential safety hazard of explosion still exists; 2. A static oil bath environment is adopted for testing, but in the actual working condition, the insulating oil is in a working condition of dynamic circulation and accompanied with local temperature rise, so that a deviation exists between a test result and the actual insulating performance of the equipment. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a device for a high-voltage insulation test, which is used for effectively improving the overall explosion-proof performance by utilizing the bottom to put in an oil body in the actual use process. In order to achieve the above purpose, the present invention adopts the following technical scheme: A device for a high-voltage insulation test comprises a test shell, wherein the test shell is composed of an integrated welding frame at the bottom and a top plate at the top, the integrated welding frame is connected with the top plate in a welding mode, a lifting storage mechanism comprises a transverse plate fixedly connected between inner walls at two sides of the bottom of the integrated welding frame, a hydraulic telescopic rod is arranged at the lower end of the transverse plate, a lifting plate is fixedly connected with the telescopic end of the hydraulic telescopic rod, a connecting cylinder capable of storing insulating oil is fixedly connected with the upper end of the lifting plate, and a detection mechanism matched with the connecting cylinder is arranged at the lower end of the top plate. Preferably, the upper end fixedly connected with a plurality of guide bars of lifter plate, a plurality of the upper end of guide bar all runs through the roof, and with roof sliding connection, sealing door is installed to the bottom part front side of integral type welding frame. Preferably, the detection mechanism comprises a plurality of connecting frames fixedly connected to the lower end of the top plate, a plurality of connecting frames are fixedly connected with a fixing plate at the lower ends of the connecting frames, a sealing column is fixedly connected to the lower ends of the fixing plate, an annular rubber sealing gasket is arranged on the outer side of the sealing column and matched with the inner side of the connecting cylinder, and two pressurizing electrodes are symmetrically arranged at the lower ends of the sealing column. Preferably, the gas-liquid flow mechanism further comprises a gas-liquid flow mechanism, wherein the gas-liquid flow mechanism comprises two piston cylinders which are symmetrically and fixedly connected to the upper end of the fixing plate, first piston blocks capable of sliding up and down are arranged in the piston cylinders, the lower ends of the first piston blocks are elastically connected with the inner bottoms of the piston cylinders through second springs, connecting rods are fixedly co