Machining process of corrugated plate for machining AP1000 steam generator dryer

Abstract

The invention discloses a machining process of a corrugated plate for machining an AP1000 steam generator dryer. In the machining process, a corrugation stamping device used for stamping base plate corrugations and a tailhook stamping device used for stamping a tailhook are adopted, and a water baffle stamping device used for stamping water baffles and a supporting member stamping device used for stamping supporting members are further adopted. In the machining process of the corrugation plate, a base plate of the corrugation plate, the water baffles and the supporting members are respectively machined through dies and fixed into a whole through a welding mode, wherein tool arrays of the corrugation stamping device used for machining the corrugations on the base plate sequentially abut against a base plate template in a pressed mode before formal stamping, and therefore the positioning accuracy of the base plate is guaranteed; after the base plate is completely pressed, the corrugated plate is formed by conducting the stamping again. The machining efficiency is improved, and the machining accuracy is guaranteed.

Description

technical field [0001] The invention relates to steam drying and steam-water separation technology in the field of nuclear power, in particular to a corrugated plate for a dryer, and in particular to a processing technology for processing a corrugated plate for an AP1000 steam generator dryer. Background technique [0002] The nuclear power steam generator is one of the three major devices in the nuclear island. It transfers the heat generated by the nuclear reactor to the secondary side of the steam generator. The steam generated is dried by the primary and secondary steam-water separation devices and drives the turbogenerator to generate electricity. The dried steam needs to meet the requirement that the humidity is less than 0.25%. [0003] Among them, the first-stage steam-water separation device mostly adopts a swirling vane separator, and its steam-water separation efficiency is about 90%; The steam circulation channel is formed, and the wet steam changes the flow dir...

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Problems solved by technology

[0004] AP1000, as the third generation of advanced nuclear power technology, has been used by nuclear power plants or nuclear power plants in many countries including my country. The corrugated plate is equipped with water baffles and tail hooks for water drop confluence and support The corrugated board plays a positioning and supporting role between adjacent corrugated boards, among which the shape, structure, size, quantity and installation position of the corresponding components on the corrugated board are all directly or Indirectly affect the separation efficiency of steam and water, especially the size of the corrugation, the size of the board, and the strength are restricted by many aspects. At present, there is no particularly good corrugated board production equipment. Even if the corrugated board can be produced, its dimensional accuracy is difficult to meet the use requirements.

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