System for adjusting temperature of high-temperature gas cooled reactor cabin

Abstract

A system for adjusting the temperature of a high-temperature gas cooled reactor cabin comprises a water tank, which is communicated with a heat exchanger A, a pump and a check valve pipeline; the other end of the check valve is divided into two paths, wherein one path is connected with a heat exchanger B arranged in an upper cabin of a reactor, and the other path is connected with a heat exchanger C arranged in a lower cabin of the reactor; the heat exchanger B and the heat exchanger C are connected in parallel, converged in a pipeline 16 and then connected with the water tank 1 to form a closed-loop water circulation loop. Heat exchangers are arranged in an upper cabin and a lower cabin of a reactor, flowing of cooling water on the pipe side is accelerated through a circulating pump, the heat transfer coefficient of the pipe side is enhanced, and therefore the heat transfer coefficient of the heat exchangers arranged in the upper cabin and the lower cabin of the reactor is improved. In addition, when the temperature of the reactor cabin abnormally rises, the temperature of the upper cabin of the reactor is quickly reduced to an operation limit range, and the risk of unplanned shutdown is reduced.

Description

technical field [0001] The invention relates to the technical field of reactor safety facilities, in particular to a system for regulating the temperature of a high-temperature gas-cooled reactor cabin. Background technique [0002] The high-temperature gas-cooled reactor nuclear power plant has inherent safety and belongs to the advanced reactor type with the characteristics of the fourth-generation nuclear power technology. The demonstration project of the high-temperature gas-cooled reactor nuclear power plant has started construction, and will enter the commercial promotion stage in the future. The reactor compartment cooling system is an important part of the high-temperature gas-cooled reactor. The reactor compartment cooling system consists of two parts: a waste heat removal system and a shielded cooling water system. [0003] The control rod actuator is installed in the upper compartment of the reactor, and the cables in the primary circuit of the control rod actuato...

AI Technical Summary

Problems solved by technology

If the reactor is shut down for maintenance, the temperature of the reactor compartment will drop slowly after the shutdown, which will indirectly affect the maintenance of the equipment in the area, which is not conducive to the improvement of the unit economy

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