Pressurized water reactor nuclear power station radioactive decontamination system and process arrangement structure thereof

Abstract

The invention relates to a pressurized water reactor nuclear power station radioactive decontamination system and a process arrangement structure thereof. According to the decontamination system and the process arrangement structure thereof provided by the invention, the decontamination equipment and the decontamination waste liquid collection equipment provided by the decontamination system are reasonably arranged in the decontamination workshop; the purposes that the decontamination workshop where the decontamination system is located is simple in process arrangement structure form, small in occupied space, high in decontamination operation working efficiency, easy and convenient to operate and capable of being remotely controlled are achieved. Meanwhile, decontamination equipment in the decontamination system is novel, the discharge amount of decontamination waste liquid is small, the safety of operators is guaranteed, collection and treatment of the decontamination waste liquid are facilitated, and the storage and treatment capacity of the waste liquid is further improved. In addition, according to the process arrangement structure provided by the invention, the arrangement number of pipelines and cables is also simplified, so that the arrangement of the whole decontamination system and matched facilities reaches the optimal design as far as possible.

Description

technical field [0001] The invention belongs to the technical field of radioactive in-service decontamination in the field of nuclear power, and particularly relates to a radioactive decontamination system for a pressurized water reactor nuclear power plant and a process arrangement structure thereof. Background technique [0002] At present, PWR nuclear power plants need to inspect and repair the system and equipment during the shutdown and refueling. Since most of the equipment to be repaired dismantled from the nuclear island workshop has radioactive contamination, it is necessary to design a reasonable arrangement of the decontamination system and the decontamination workshop where it is located. pollution treatment. After decontamination, the radioactivity level of the equipment drops to a level acceptable to maintenance personnel. [0003] At present, the design of decontamination workshops in China generally follows the equipment and layout of the Daya Bay Nuclear P...

AI Technical Summary

Problems solved by technology

[0003] At present, the design of domestic decontamination workshops generally follows the equipment and layout plan of Daya Bay Nuclear Power Plant. Due to the upgrading of reactor type and equipment of nuclear power plants under construction, many decontamination facilities and layout schemes can no longer meet the needs of the existing decontamination process. There are many problems in layout, equipment use, process design, safe and convenient personnel operation and waste liquid discharge

Images