Adjustable tool for large-scale penetration piece in nuclear power station and adjusting method

Abstract

The invention relates to the technical field of construction of penetration pieces in a nuclear power station and particularly discloses an adjustable tool for a large-scale penetration piece in a nuclear power station and an adjusting method. The adjustable tool is characterized in that a plurality of door type plates are arranged on lining bracket beams in the adjustable tool; a hole is formed in a top plate of each door type plate, and an adjustable bolt is arranged on the top plate and is adjusted according to the shape of the inner wall of the penetration piece to realize multi-point contact of the adjustable bolt and the inner wall of the penetration piece; the rows of lining bracket beams comprising the door type plates and the adjustable bolts are fixedly mounted on lining main beams and are wholly placed on supporting pillars, the lining main beams are fixedly arranged on top plates of the supporting pillars through limiting pieces. The tool can be used for hoisting the penetration piece and can effectively reduce the deformation of the penetration piece in the hoisting and mounting construction. The adjustable tool is convenient to assemble and disassemble, can be recycled, is particularly suitable for the construction of the large-scale penetration piece on a towering wall in the nuclear power station with multiple units, and also can be used for modular installation construction of the penetration piece.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant through-piece construction, and in particular relates to an adjustable tooling and an adjustment method for a large-scale through-piece in a nuclear power plant. Background technique [0002] During the construction of large-scale penetrations in nuclear power plants, adjustable tooling needs to be provided to ensure that the penetrations are in place and meet the requirements for fine-tuning positioning. Traditional penetrations are usually constructed with disposable, embedded external support tooling and internal anti-deformation tooling. Penetrations After being in place, it is necessary to use lifting and traction equipment to accurately position, which not only requires a large workload and wastes a lot of materials, but also the external tooling cannot meet the construction requirements of large penetrating parts with intensive reinforcement around them. Contents of the inventi...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an adjustable tooling and adjustment method for large penetrating parts of nuclear power plants, which can solve the shortcomings of the existing one-time supporting tooling and adjusting methods for large penetrating parts of nuclear power plants. Through-pieces can be recycled and precise adjustments can be made to the through-pieces

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