Fuel salt loop system and operation method

Abstract

The invention discloses a fuel salt loop system and an operation method. The fuel salt loop system comprises a fuel salt pond and a reactor container. The fuel salt pond is divided into a first cavity used for containing fuel salt and neutron poison and a second cavity used for containing gas. The reactor container and the fuel salt pond form a fuel salt loop through a discharging system and a feeding system, and the bottom of the fuel salt loop is higher than the bottom of the second cavity; the feeding system comprises a reactor container inlet pipe arranged on the upper portion of the reactor container, and a main pump is arranged on the reactor container inlet pipe and used for driving fuel salt to flow into the reactor container from the fuel salt pond. The discharging system comprises a reactor container outlet pipe arranged at the bottom of the reactor container and a liquid level control pipe arranged on the reactor container. According to the invention, innovation is carried out on the design thought of the molten salt reactor, residual reactivity control and heat discharge are considered from the whole fuel salt loop system, the design of the reactor body is simplified, and the inherent safety is improved.

Description

technical field [0001] The invention belongs to the field of molten salt reactor design, and in particular relates to a fuel salt circuit system and an operation method. Background technique [0002] The safety functions of any reactor include: effectively controlling reactivity; ensuring core cooling; and containing radioactivity. In order to ensure the safety of the reactor, all safety measures of the reactor are designed to perform the above safety functions. In terms of reactivity control, in order to compensate for the remaining reactivity of the reactor, an appropriate amount of negative reactivity that can be adjusted at will must be introduced into the core. This controlled reactivity can be used to compensate for the remaining reactivity required for long-term operation , It can also be used to adjust the level of reactor power, so that the reaction power can be adapted to the required load. In addition, it can also be used as a means of shutting down the reactor. ...

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Problems solved by technology

In addition, although the advanced passive waste heat removal system is adopted, the design of this system is still the same as that of the traditional reactor design, that is, to find a solution on the reactor body, which makes the original complex reactor body more complicated, and limits the further increase of the power of a single molten salt reactor.

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