Passive residual heat removal system and method for tank type lead-based reactor

Abstract

The invention relates to a passive residual heat removal system and method for a tank type lead-based reactor, and the system comprises an air inlet gathering pipeline, an air outlet gathering pipeline, an air cooling pipeline, an air inlet pipeline and an air outlet pipeline; the air inlet gathering pipeline and the air outlet gathering pipeline are respectively arranged on the outer walls of thebottom and top of a reactor main container along the circumferential direction; the air cooling pipeline is arranged on the outer wall of the reactor main container between the air inlet gathering pipeline and the air outlet gathering pipeline, one end of the air cooling pipeline is connected with the air inlet gathering pipeline, and the other end of the air cooling pipeline is connected with the air outlet gathering pipeline; an inlet of the air inlet pipeline is communicated with the atmospheric environment through an inlet automatic air door, and an outlet of the air inlet pipeline extends into a reactor pit and is connected with the air inlet gathering pipeline; an inlet of the air outlet pipeline is connected with the air outlet gathering pipeline, an outlet of the air outlet pipeline is connected with an inlet of a draft chimney through an outlet automatic air door, and an outlet of the draft chimney is communicated with the atmospheric environment. The passive residual heat removal system is convenient to start, simple in structure and good in heat removal effect, the reactor core structure can be simplified, the reactor construction cost is reduced, and passive safety isachieved.

Description

technical field [0001] The invention relates to passive safety facilities of a pool-type lead-based reactor, in particular to a passive waste heat discharge system and method for discharging waste heat from the core of a pool-type lead-based reactor in an accident. Background technique [0002] The pool-type lead-based reactor uses lead or lead-bismuth alloy as the coolant, which has a strong natural circulation capability. In the event of an accident, it can rely on the natural circulation of the coolant in the reactor to discharge the waste heat of the core, thereby greatly improving the inherent safety of the reactor. [0003] As a special safety facility for lead-based reactors, the design of passive waste heat removal system is very important for improving the inherent safety of the reactor. Pool-type lead-based reactors generally adopt an independent passive waste heat removal system. Its advantage is that it can use the natural circulation of the system medium to auto...

AI Technical Summary

Problems solved by technology

The system is simple to set up and can improve the safety of the reactor, but the heat removal capacity is relatively poor. For reactors with a large amount of waste heat removal, other cooling systems need to be additionally installed

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