Primary side drying system of steam generator

Abstract

The invention belongs to the technical field of steam generator drying, and particularly relates to a primary side drying system of a steam generator. The primary side drying system of the steam generator comprises a drying device used for importing heated gas to the steam generator and an air purifying device used for extracting and filtering waste gas generated by the steam generator. The primary side drying system solves the technical problem that the primary side drying system of the steam generator of the existing nuclear power station only has a drying function and has difficulty in extracting and filtering the waste gas generated by the steam generator. The primary side drying system not only has the drying function but also can be used for extracting and filtering the waste gas generated by the steam generator, and the filtered waste gas can be directly discharged to the atmosphere, so that the cost is reduced, and the efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of steam generator drying, and in particular relates to a steam generator primary side drying system. Background technique [0002] During the overhaul period of the nuclear power plant, the maintenance activities arranged on the primary side of the steam generator include eddy current inspection and pipe plugging of the heat transfer tube, and the inner wall of the primary side of the steam generator has a certain quality of radioactive water absorbed. To do so requires specialized equipment to dry the work area and to evacuate and filter the steam generator air outlet to avoid the influx of radioactive particles into the air. [0003] At present, the steam generator primary side drying device of nuclear power plants only has a separate drying function, and it is difficult to exhaust and filter the exhaust gas generated by the steam generator. It is necessary to build a pollution control device SAS on site ...

AI Technical Summary

Problems solved by technology

[0003] At present, the steam generator primary side drying device of nuclear power plants only has a separate drying function, and it is difficult to exhaust and filter the exhaust gas generated by the steam generator. It is necessary to build a pollution control device SAS on site to assist in the exhaust and filter functions. Increased research and development costs and reduced work efficiency

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