Multipurpose heat transport system for small villiaumite cooling high-temperature reactor

Abstract

The invention discloses a multipurpose heat transport system for a small villiaumite cooling high-temperature reactor. The multipurpose heat transport system comprises a reactor container, a hot pool, a cold pool, a reactor core, a reactor core flow distribution plate, a cold / hot pool shroud, a cold / hot pool partition plate, a villiaumite-carbon dioxide heat exchanger, a main heat-waste heat integrated heat exchanger and an axial flow pump. The system has two circulation modes of forced circulation and natural circulation, and has three operation modes of compact operation, comprehensive operation and full-power operation; an external power circulation system is directly connected in a compact operation mode; an external heat transport system is connected in the comprehensive operation mode; and in the full-power operation mode, an external power circulation system and an external heat transportation system are connected at the same time. A reactor core loop, a main heat transport loop and a waste heat discharge system are combined at the same time, simultaneous operation and flexible switching of in-reactor circulation, main heat transport and waste heat transport are achieved, compact and efficient utilization of energy is achieved in a limited space, and the process of autonomously mastering the small villiaumite cooling high-temperature reactor design technology in China is promoted.

Description

technical field [0001] The invention belongs to the technical field of advanced nuclear energy development, and in particular relates to a multi-purpose heat transport system for a small-scale fluoride-salt cooling high-temperature reactor. Background technique [0002] The small fluoride-salt cooled high-temperature reactor has the characteristics of high temperature and low pressure, compact structure, low cost and comprehensive energy utilization. In addition to power generation, small fluoride-salt-cooled high-temperature reactors should also have interfaces that provide high-temperature process heat to achieve high-temperature hydrogen production, energy storage, and brine desalination, providing an integrated, multi-purpose energy supply solution. [0003] However, the heat transport system design of most small fluoride-salt-cooled high-temperature reactors is mostly aimed at specific operating modes and working modes, and it is difficult to simultaneously adapt to the...

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Problems solved by technology

[0003] However, the heat transport system design of most small fluoride-salt-cooled high-temperature reactors is mostly aimed at specific operating modes and working modes, and it is difficult to simultaneously adapt to the needs of multi-cycle modes and working modes such as natural / forced circulation, power generation / high-temperature process heat, etc.

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