Identification method of affected equipment under long-term temporary stop conditions of nuclear power unit

A nuclear power unit and identification method technology, applied in nuclear power plants, nuclear power generation, nuclear power plant control, etc., can solve problems such as incompleteness and unsystematic equipment management, and achieve the effect of reducing maintenance costs

CN110415846AActive Publication Date: 2019-11-05SUZHOU NUCLEAR POWER RES INST +3
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-11-05

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Abstract

The invention relates to an identification method of affected equipment under long-term temporary stop conditions of a nuclear power unit. The method includes the following steps of S1, combing a system affected by temporary stop; S2, making an analysis to find out the equipment with operating frequency and operating environment changes in the system; S3, screening out an affected equipment list from the equipment analyzed in S2 through comprehensive consideration according to the three dimensions of the equipment criticality, the operating frequency and the operating environment; S4, carryingout classifying and summarizing on the equipment list combed out in S3 according to an equipment classifying mode. According to the invention, a comprehensive identification method and means for changes of the operating frequency, the operating environment and the like of the equipment affected the temporary stop conditions are provided.
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Description

technical field

[0001] The invention belongs to a method for identifying equipment affected by a long-term temporary stop of a nuclear power unit. Background technique

[0002] As the domestic power market environment is becoming increasingly severe, the availability of nuclear power units has declined, and nuclear power units are often temporarily shut down or even used for medium and long-term standby. There have been many incidents of equipment damage caused by long-term temporary shutdown of nuclear power units in operation by CGNPC. According to the analysis and feedback of the incidents in the power plant, the preventive maintenance strategy of some equipment cannot meet the maintenance needs of long-term shutdown equipment, resulting in a decline in the reliability of this part of equipment. At the same time, due to the lack of technical research and reserves for the long-term temporary shutdown of the unit, it appears to be inexperienced in dealing with the challenge...

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Embodiment Construction

[0040] In order to have a clearer understanding of the technical features, purposes and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] The main idea of ​​the present invention is to first sort out the affected systems under different temporary stop modes, and analyze which equipment operating frequency and operating environment in the system have changed; then according to the criticality, operating frequency, and operating environment of these equipment Comprehensively consider the dimensions to screen out the affected equipment list; finally, classify and summarize the sorted out equipment list according to the equipment category, and finally design an ide...