Low-power operation method of pool type sodium-cooled fast reactor needless of conventional island investment

Abstract

The invention relates to a low-power operation method of a pool type sodium-cooled fast reactor needless of conventional island investment, and belongs to the technology of pool type sodium-cooled fast reactor design. According to the method, the total normal heat radiation quantity of main and auxiliary systems of first and second loops is determined without investment of a third loop, and thus, the maximal power for long-term operation in a balanced state is determined. According to the total sodium loaded amount of the first and second loops and the initial starting temperature, the maximal power level and corresponding time relation of the reactor can be determined under highest temperature limit. Besides physical thermal calculation, control protection related setting values are modified correspondingly to satisfy the requirement for the safety allowance. On the premise that the safety allowance is ensured, the economical, reliable and flexible performances of the reactor are improved, the utilization rate of the reactor is effectively and fully improved, and corresponding scientific research level is improved.

Description

Technical field [0001] The invention belongs to the design technology of a pool-type sodium-cooled fast reactor, and specifically relates to a low-power operation method of a pool-type sodium-cooled fast reactor that does not require conventional island input. Background technique [0002] When the pool-type sodium-cooled fast reactor is operating normally, the heat generated by the reactor core is normally exported by the main heat transmission system (consisting of a primary circuit, a secondary circuit, and a tertiary circuit), and the heat energy is converted into electrical energy through a steam turbine generator set. The three circuits, including steam turbines and generators, are all located on conventional islands. As a research reactor, the China Experimental Fast Reactor (CEFR) is operated and tested at low power in many cases. At this time, equipment such as steam turbines did not meet operating conditions. Due to the large amount of conventional island equipment, cu...

AI Technical Summary

Problems solved by technology

Due to the large amount of conventional island equipment, cumbersome operation, high investment cost, and long preparation time, in the face of the situation that low power can meet the test requirements, there is an urgent need for a system that can use low and medium power without investing in conventional island system equipment while running the program to improve economy and flexibility

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