Micro-reactor adopting superconductive heat pipe

Abstract

A micro-reactor adopting a superconductive heat pipe comprises a micro-reactor body and a cooling loop; the micro-reactor body comprises a shell and a fuel element arranged in the shell; heat generated by the fuel element is transmitted to the cooling loop, the superconductive heat pipe is arranged between the micro-reactor body and the cooling loop, and the hot end of the superconductive heat pipe is arranged in the fuel element; the cold end is arranged in a heat exchanger of the cooling loop; the superconducting heat pipe is filled with a working medium, and heat generated by the fuel element is transferred from the hot end to the cooling loop connected with the cold end through passive phase change heat transfer of the working medium in the operation process of the micro-reactor. The micro-reactor has the advantages of being compact in structure, efficient in heat exchange, wide in application range, high in inherent safety and the like, and has wide application prospects and important value in the field of military and civilian integration.

Description

technical field [0001] The invention relates to the technical field of nuclear reactor equipment, in particular to a micro-reactor using superconducting heat pipes. Background technique [0002] In the 1960s, in order to simplify the reactor design and improve the inherent safety characteristics of space nuclear reactors, Los Alamos National Laboratory (LANL) proposed a new space nuclear reactor design concept using efficient heat pipe heat conduction elements, that is, the heat pipe reactor design concept. A heat pipe reactor refers to a solid-state nuclear reactor in which the primary loop system of the reactor does not adopt the traditional coolant loop layout, but uses heat pipes instead of the primary loop system to transfer the heat generated by the core to the secondary loop system or thermoelectric conversion device. When the heat pipe reactor is in operation, the fission energy produced by the reactor is transferred to the evaporation section of the metal heat pipe ...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, the coolant primary circuit system used in traditional reactors is an active heat transfer process, which requires external power to conduct heat normally. Burning, the temperature rises sharply, causing irreparable losses

Moreover, the heat transfer resistance is large and the thermal sensitivity is low

When the conventional heat pipe heat exchanger is used, due to the incompatibility of the medium and the pipe, it is easy to produce non-condensable gas, which affects the heat exchange efficiency, and even local overheating causes the pipe to explode in severe cases.

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