China's first independently developed "Nuclear Diesel No. 1" 6MW nuclear power emergency diesel generator set released

China News Service, Shanghai, September 22 (Li Qiuying, He Baoxin, Qiu Qinghao) On September 22, China State Shipbuilding Corporation released China's first independently developed "Nuclear Diesel No. 1" 6MW nuclear power emergency diesel generator set, marking that China has fully mastered the core technology of independent design, research and development and manufacturing of this level of units, and made up for the shortcomings of independent nuclear power high-power emergency power equipment.

China's first independently developed 6MW nuclear power emergency diesel generator set "Nuclear Diesel No. 1". Photo provided by interviewee

Nuclear power emergency diesel generator sets are the core key facilities of the defense-in-depth safety system of nuclear power plants. They shoulder the important mission of safely shutting down the reactor under accident conditions, curbing the spread of accidents, and reducing the impact of accidents.

In terms of performance parameters, the comprehensive strength of the unit is fully benchmarked against the international advanced level: the 100% operating power of the diesel engine is 7,000 kilowatts, the unit's 100% power is 6,600 kilowatts, the unit start-up time is less than 10 seconds, the average trouble-free working time is more than 2,000 hours, and the average repair time of the diesel engine is less than 4 hours. It has significant advantages such as fast start-up response, high operational reliability, strong loading capacity, and convenient operation and maintenance.

The newly released "Nuclear Diesel No. 1" 6MW nuclear power emergency diesel generator set complements the 8MW class unit launched in December 2024. It will further improve the product lineage of the "Nuclear Diesel No. 1" nuclear power emergency diesel generator set to meet differentiated application needs and expand the application scenarios of nuclear power emergency power equipment.