On-line sealing and pressure testing process for finned radiator unit fins for transformer

The invention discloses an online sealing pressure test process for a finned radiator unit sheet for a transformer. The online sealing pressure test process comprises the following steps that S1, the unit sheet is placed above a sealing pressure test sliding rail support; s2, the two ends of the unit pieces are connected through sealing assemblies correspondingly; s3, the unit pieces are guided into the middle of the sliding rail support; s4, connecting the pressurizing guide pipe with a sealing assembly; s5, the sliding rail support is controlled to slowly move downwards, and the unit pieces are forced to be completely immersed in water; s6, air with a certain pressure is guided into the unit pieces through pumping pressure equipment; s7, observing for a period of time, and controlling the sliding rail bracket to slowly move upwards; s8, the unit piece is guided into the upper portion of the sliding rail support; s9, sealing assemblies at the two ends of each unit piece are taken down; s10, the qualified pro