A Severe Accident Handling Method for Spent Fuel Pool

Abstract

The invention discloses a method for handling serious accidents of spent fuel pools, including: step 1: obtaining water level information of spent fuel pools, and judging the accident level of spent fuel pools; step 2: setting data interfaces in the operation control unit of spent fuel pools, and modifying the Operation procedures of the spent fuel pool; the monitoring center monitors and controls the operation of the spent fuel pool; Step 3: When the accident level of the spent fuel pool is a serious accident, based on the diagnosis module, the accident phenomenon of the severe accident of the spent fuel pool is diagnosed; Step 4 : Generate the corresponding accident mitigation strategy based on the accident phenomenon of the severe accident of the spent fuel pool; Step 5: Based on the generated accident mitigation strategy, carry out the corresponding treatment on the spent fuel pool, so as to achieve high accident handling efficiency and accident mitigation effect Better technical effect.

Description

technical field [0001] The invention relates to the field of accident handling of nuclear power plants, in particular to a method for handling severe accidents of spent fuel pools. Background technique [0002] The main function of the spent fuel pool (Spent Fuel Pool) is to store and cool spent fuel elements. Nuclear power plants need to replace fuel after a certain cycle. The spent fuel taken out of the reactor is radioactive and continues to generate decay heat, so it must be stored in the spent fuel pool. [0003] The containment vessel in this application refers specifically to the large dry containment vessel of the PWR, which belongs to the pressure-bearing building. Most PWRs design the spent fuel pool outside the containment. Boiling water reactors like the Fukushima nuclear power plant adopt a small containment design, and the spent fuel pool is designed in the reactor building outside the containment, but usually the reactor building is an ordinary industrial bu...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a serious accident treatment method for a spent fuel pool, which solves the technical problems of low accident treatment efficiency, poor treatment effect, and potential safety hazards in the existing serious accident treatment method for a spent fuel pool in a pressurized containment , realized the modification of the operating procedures of the spent fuel pool, classified the accident phenomena and levels of the spent fuel pool, and carried out different treatments for the accidents of different phenomena, the accident handling efficiency was higher, and the accident mitigation effect was better good technical effect

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