China Nuclear Corporation Fuqing Nuclear Power Unit 5 external nuclear test detector passed the acceptance

[ China Instrument Network Instrument R&D ] Recently, Hualong No. 1 World's first demonstration project - China Nuclear Corporation Fuqing Nuclear Power Unit 5 external nuclear test detector passed the acceptance, marking the realization of the three generations of nuclear power reactor nuclear detectors Technological breakthroughs have broken the foreign technology monopoly of nuclear test products outside the stack of millions of kilowatt-class nuclear power plants.

The equipment was independently developed by China National Nuclear Corporation's nuclear control. Experts from China Nuclear Power Institute, Fuqing Nuclear Power and Nuclear Power Engineering Co., Ltd. witnessed the product test and conducted a detailed review of the project documents. It was agreed that the product performance indicators met the design requirements. The documents are detailed and complete and meet the acceptance criteria.

CNNC is a wholly-owned company of China National Nuclear Corporation. It was reorganized on October 15, 2013 by China Nuclear (Beijing) Nuclear Instrument Factory and former Beijing Nuclear Advanced Control System Engineering Co., Ltd. It is an international nuclear instrument and control system field. , a professional nuclear instrument control supplier with long product chain, complete varieties and complete equipment. As a research and development unit of equipment, its nuclear measurement technology has a long history. It is the only unit in China that has design and production license for nuclear-grade nuclear detector equipment and has more than 30 reactor operation experience.

The external nuclear detector is installed outside the reactor pressure vessel to monitor the reactor neutron fluence rate and provide information on the power level and power variation of the reactor from start-up to full power operation. Its safety function is to provide the reactor protection system. Neutron fluence rate signal, in the case of high neutron fluence rate and high rate of change, triggers reactor emergency shutdown, and sends neutron fluence rate and neutron change rate information to relevant nuclear instrument and main control room Display, indication, record, provide the operator with loading/unloading, shutdown, start-up, reactor status information during power operation, etc.

The nuclear-controlled detector products designed and manufactured by China Nuclear Control passed the factory acceptance, indicating that the company has taken a solid step in the autonomy of the key equipment of the third-generation nuclear power, which proves its strong strength in the field of nuclear testing. The domestic and international "Hualong No. 1" nuclear power supply laid the foundation.

(Source: China Nuclear Nuclear Control System Engineering Co., Ltd., SASAC website)