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CN-122017435-A - Water boiling test device for lightning arrester

CN122017435ACN 122017435 ACN122017435 ACN 122017435ACN-122017435-A

Abstract

The invention relates to the technical field of test equipment, in particular to a water boiling test device for a lightning arrester, which comprises a test box, wherein a heat insulation layer is arranged in the test box, a gas collecting shell is arranged in the test box, a gas extraction pipe is arranged in the gas collecting shell, a gas pump is arranged in the test box, a cleaning brush is arranged between an exhaust pipe and the gas extraction pipe, during the operation of the gas pump, air in an upper area in the test box can be extracted through the gas extraction pipe, steam generated by hot water enters the gas extraction pipe, and then enters the cleaning brush through the gas extraction pipe, and the temperature of the steam is close to that of hot water in the test box, so that the lightning arrester can be prevented from generating thermal stress due to quenching, and meanwhile, the steam can take away obviously visible water drops.

Inventors

  • WEN WU
  • LIN XU

Assignees

  • 湖南特诚成套电器有限公司

Dates

Publication Date
20260512
Application Date
20260407

Claims (7)

  1. 1. The water boiling test device for the lightning arrester comprises a test box (1) and is characterized in that a heat insulation layer (2) is arranged in the test box (1), a gas collecting shell (3) is arranged in the test box (1) and positioned in the heat insulation layer (2), a gas exhaust pipe (4) is arranged in the gas collecting shell (3), an exhaust pipe (5) is arranged at the inner bottom of the test box (1), an air pump (6) is arranged in the test box (1), a cleaning brush (7) is arranged between the exhaust pipe (5) and the gas exhaust pipe (4), and an inclined exhaust port (8) is formed in the inner side of the cleaning brush (7); A bearing frame (9) is arranged in the test box (1); The inner top surface of the cleaning brush (7) is provided with a turbine (25).
  2. 2. The water boiling test device for the lightning arrester is characterized in that a device bin (10) is arranged on one side of the test box (1), the air pump (6) is arranged in the device bin (10), one ends of the air exhaust pipe (4) and the exhaust pipe (5) penetrate through the device bin (10), and the air exhaust pipe (4) and the exhaust pipe (5) are connected into an air exhaust port and an air connection port of the air pump (6) through external hoses.
  3. 3. The water boiling test device for the lightning arrester is characterized in that a connecting seat (11) is fixedly arranged on the outer surface of the exhaust pipe (5), the connecting seat (11) is fixed at the inner bottom wall of the test box (1), a bearing pipe (12) is fixedly communicated with the position of the exhaust pipe (5) between the connecting seat (11) and the connecting seat (11), a one-way valve is arranged in the bearing pipe (12), and a heating rod (13) is arranged on the inner side wall of the test box (1) between the exhaust pipe (5) and the exhaust pipe (5).
  4. 4. The water boiling test device for the lightning arrester is characterized in that a bearing net (14) is closely attached to the outer surface of the gas collecting shell (3), the inner wall of the bearing net (14) is rotationally connected with the outer surface of the cleaning brush (7), a rotary ring (15) is rotationally connected to the bottom end of the cleaning brush (7), a funnel-shaped exhaust nozzle (16) is fixedly arranged at the bottom end of the rotary ring (15), a connecting pipe (17) is closely attached to the outer surface of the exhaust nozzle (16), a rubber ring (18) is fixedly arranged on the inner wall of the connecting pipe (17), the rubber ring (18) and the exhaust nozzle (16) are mutually extruded, and a corrugated pipe (19) is arranged above the bearing pipe (12) by the connecting pipe (17).
  5. 5. The device for water boiling test for lightning arrester according to claim 4, wherein the bottom end of the connecting tube (17) is communicated with the top end of the corrugated tube (19), and the bottom end of the corrugated tube (19) is communicated with the top end of the bearing tube (12).
  6. 6. The water boiling test device for the lightning arrester is characterized in that a fixing seat (20) is fixedly arranged on the inner side wall of the heat insulation layer (2), a sliding rod (21) is fixedly arranged on the outer surface of the fixing seat (20), a sliding plate (22) is connected to the outer surface of the sliding rod (21) in a sliding mode, a spring (23) is sleeved on the outer surface of the sliding rod (21), the top end of the spring (23) is fixedly connected with the bottom surface of the sliding plate (22), and the bottom end of the spring (23) is fixedly connected with the outer surface of the fixing seat (20).
  7. 7. The device for water boiling test for lightning arrester according to claim 4, wherein the outer surface of the sliding plate (22) is fixedly connected with the outer surface of the bearing frame (9), the inner wall of the bearing frame (9) is fixedly connected with the outer surface of the connecting pipe (17), the bottom surface of the bearing net (14) is fixedly provided with a contact frame (24), and the outer surface of the contact frame (24) is in contact and close contact with the outer surface of the bearing frame (9).

Description

Water boiling test device for lightning arrester Technical Field The invention relates to the technical field of test equipment, in particular to a water boiling test device for a lightning arrester. Background The lightning arrester water boiling test has the core effects of verifying the sealing performance of a product and the insulation reliability under a wet state, avoiding damp failure in operation, detecting the sealing integrity to prevent rainwater and moisture from penetrating into internal metal parts or insulating materials, checking the wet state insulation capability, and simulating the actual rain environment to verify whether the insulation performance meets the operation requirement. The conventional lightning arrester water boiling test equipment is used for testing accuracy, the lightning arrester is generally quickly taken out and disassembled after water boiling, but when the test equipment is opened, due to steam diffusion and high temperature, a metal net frame with the lightning arrester placed in the water boiling equipment is often required to be taken out through the assistance of a plurality of brackets, but according to the sealing performance test section (8.8) of Chinese national standard GB/T11032-2020 alternating current gapless metal oxide lightning arrester, the water boiling test requirement is 8.8.3 that the lightning arrester is immersed in boiling deionized water (containing NaCl1kg/m 3) for 42 hours, and then dried, clean and soft cloth is used for wiping the surface of the lightning arrester immediately, so that all visible moisture is removed, and then the sealing performance test and the electrical test are carried out. It follows that this clause clearly requires that the surface wiping must be performed immediately after the 42 hour poaching is completed, when the lightning arrester needs to be removed from the boiling water. From the above, it is required to take out and wipe the lightning arrester immediately after the water boiling, but in reality, when the water boiling test box is opened after the water boiling is completed, a large amount of steam can be diffused, the steam can scald the skin of an operator, meanwhile, the lightning arrester is in a high-temperature state, natural cooling or water cooling is usually adopted, but the defects exist, during the natural cooling, dust, oil dirt and other impurities in the air are easy to adhere to the surface of the lightning arrester, the sealing performance detection or insulation test result is interfered, the equipment state is possibly misjudged, the natural cooling time is long, the whole test flow can be prolonged, when the cold water cooling is adopted, the temperature difference is large, the thermal stress is easily generated, the porcelain bushing is possibly caused to crack, the sealing element is possibly aged and invalid, and the follow-up detection accuracy of the equipment is affected. Disclosure of Invention The invention aims to solve the defects in the background art, and provides a water boiling test device for a lightning arrester. In order to achieve the purpose, the technical scheme includes that the water boiling test device for the lightning arrester comprises a test box, wherein a heat insulation layer is arranged in the test box, a gas collecting shell is arranged in the test box, a gas exhaust pipe is arranged in the gas collecting shell, an exhaust pipe is arranged at the inner bottom of the test box, an air pump is arranged in the test box, a cleaning brush is arranged between the exhaust pipe and the gas exhaust pipe, and an inclined exhaust port is formed in the inner side of the cleaning brush; a bearing frame is arranged in the test box; the turbine is installed to the interior top surface of cleaning brush. Preferably, the equipment bin is arranged on one side of the test box, the air pump is arranged in the equipment bin, one ends of the air exhaust pipe and the exhaust pipe penetrate through the equipment bin, and the air exhaust pipe and the exhaust pipe are connected into an air exhaust port and an air receiving port of the air pump through external hoses. Preferably, the surface fixed mounting of blast pipe has the connecting seat, the connecting seat is fixed in the interior bottom wall department of test chamber, the blast pipe is located the fixed position and the intercommunication between connecting seat and the connecting seat and has the carrier pipe, the internally mounted of carrier pipe has the check valve, install the heating rod on the inside wall that the test chamber is located between blast pipe and the blast pipe. Preferably, the outer surface contact of gas collecting shell is hugged closely and is born the net, the inner wall that bears the net is connected for rotating with the surface of cleaning brush, the bottom of cleaning brush rotates and is connected with the swivel ring, the bottom fixed mounting of swivel ring has the funnel-shaped exhaust nozz