China has three generations of nuclear power rod control rod system supply capacity

Recently, with the successful conclusion of the last test, the three-generation nuclear power bar control rod system independently researched and developed by China Nuclear Power Research and Design Institute has been successful, which indicates that China has the full supply capacity of the three generations of nuclear power rod control rod system. The rod control rod system is used to lift, hold and insert the reactor control rod, realize the reactor start-up, load operation and shutdown function, and monitor the actual position of the control rod in the core and whether there is out-of-step , sticks and accidental falling sticks. The research equipment of this project is applicable to both dynamic and static power supply systems.

It can be directly applied to nuclear power reactors such as “Hualong No.1” and “Linglong No.1”, and can also be directly applied to M310 second generation nuclear power engineering and Its equipment has been upgraded and replaced. It can also be applied to AP1000 nuclear power engineering through adaptive modification. Therefore, it has wide applicability and has reached the international leading level.

It is understood that for the current domestic nuclear power plant rod control rod system equipment digitalization and intelligent level is not high, equipment heating and parameter temperature drift, the control rod drive mechanism coil control current waveform quality is not high, 2016 In the year, the Nuclear Power Institute decided to independently develop three generations of nuclear power rod control rod systems. After a series of scientific research and experiments, the final engineering prototype fully meets the requirements of the development task book, and at the same time realizes the characteristics of miniaturization, modularization and intelligence; especially the application of new technologies such as new bar measurement and intelligence.

The on-site commissioning time of the bar equipment is reduced from the current average of 10 days to less than 2 days, which greatly shortens the occupation time on the critical path of nuclear power plant commissioning and significantly improves the economic efficiency of the nuclear power plant.