Sealing method for leakage check of transformer finned radiator, and inner hook sealer special for leakage check of transformer finned radiator

Abstract

The invention relates a sealing method for leakage check of a transformer finned radiator, and an inner hook sealer special for the leakage check of the transformer finned radiator, and belongs to the technical field of transformer technological equipment. The technical scheme is that: the inner hook sealer special for the leakage check of the transformer finned radiator comprises a handle piece (1), a rubber ring (2), a pressure rubber steel sleeve (3), a cam handle (4), and a cam rotation shaft (5); the front end of the handle piece is provided with a handle, the rear end has a hook-shaped structure, and a middle part has a cylindrical step-shaped structure in a horizontal direction; the diameter of one end near the handle is small, and the diameter of one end near the hook-shaped structure is large; the inner diameters of the rubber ring and the pressure rubber steel sleeve are smaller than the maximum outer diameter of the step-shaped structure and the rubber ring and the pressure rubber steel sleeve are sleeved on a step in the middle of the handle piece sequentially; the cam rotation shaft is arranged on the handle piece and near the pressure rubber steel sleeve; and the cam rotation shaft is provided with the cam handle. The inner hook sealer is not operated outside a steel pipe for sealing but is operated inside the steel pipe for sealing; and the sealer mechanically hooks a hole on the inner part, so tensile and shear strength is large, and the sealer is absolutely safe and reliable when high air pressure is applied to the sealer.

Description

technical field [0001] The invention relates to a sealing method for leak testing of a transformer sheet radiator and a special inner hook sealer, which are used for sealing the ends of steel pipes and are airtight and water-tight during the leak testing process, and belong to the technical field of transformer technology equipment. Background technique [0002] The leak test process in the manufacturing process of the transformer chip radiator needs to be sealed at the end of the steel pipe, so that it is airtight and water-tight during the leak test process. At present, the common sealer used for leak testing of flangeless fin radiators is to clamp the outer diameter of the steel pipe with a bolt structure, and then install rubber pads and cover plates. Existing problems are: there are many action links during installation, the sealer is heavy, and the assembly and disassembly speed is slow, and it takes about 4 minutes to assemble and disassemble once. Since the ordinary...

AI Technical Summary

Problems solved by technology

The existing problems are: there are many action links during installation, the sealer is heavy, and the speed of assembly and disassembly is slow. It takes about 4 minutes to assemble and disassemble once.

Since the ordinary sealer is held on the outer diameter of the steel pipe and fixed by friction, the sealer may be ejected under high air pressure.

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