A liquid metal and high-pressure gas flow heat exchange device and method
A liquid metal, high-pressure gas technology, applied in cooling devices, greenhouse gas reduction, climate sustainability, etc., can solve problems such as less research work, complex flow heat transfer characteristics of liquid lead and bismuth, and complex flow heat transfer characteristics of helium gas
Active Publication Date: 2017-06-13
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology
[0005] Helium has good thermal conductivity and chemical reaction inertness, and the technology of helium turbine power generation is relatively mature. Through the heat exchange between helium and liquid lead-bismuth alloy, the core heat is obtained for power generation, which is very applicable to the accelerator-driven subcritical system. It is a promising direction, but the flow and heat transfer characteristics of liquid lead-bismuth and its flow and heat transfer characteristics with helium are very complicated, and there are few related research work at home and abroad.
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[0041] The heat exchange device of the present invention can be used to study the flow and heat transfer characteristics of high-temperature liquid lead-bismuth alloy and its flow and heat transfer characteristics with high-pressure helium gas, and can also be used for the flow and heat transfer characteristics of other high-temperature liquid metals and their flow and heat transfer characteristics with high-pressure gas Conduct research to provide detailed and reliable data for accelerator-driven subcritical systems cooled by liquid heavy metals and associated nuclear reactors.
[0042] The liquid metal and high-pressure gas flow heat exchange device of the present invention includes two parts: a liquid metal circuit and a high-pressure gas circuit; wherein:
[0043] Liquid metal circuits such as figure 1 As shown in A, it mainly consists of liquid storage tank 1, high temperature cut-off valve 2, 6, 7, working tank 3, electromagnetic flowmeter 4, electromagnetic pump 5, test...
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The invention discloses a liquid metal and high-pressure gas flowing heat exchanging device which comprises a liquid metal loop and a high-pressure gas loop. The invention further discloses a method for exchanging heat by using the heat exchanging device. According to the liquid metal and high-pressure gas flowing heat exchanging device and the liquid metal and high-pressure gas flowing heat exchanging method, a flowing heat exchanging property of a high-temperature liquid lead-bismuth alloy and a flowing heat exchanging property of the high-temperature liquid lead-bismuth alloy with high-pressure helium can be researched, the flowing heat exchanging properties of other high-temperature liquid metals and flowing heat exchanging properties of the other high-temperature liquid metals with a high-pressure gas can be researched, and detailed and reliable data can be provided to a subcritical system which is driven by an accelerator and cooled by adopting a liquid heavy metal and relevant nuclear reactors.
Description
technical field [0001] The invention relates to a liquid metal and high-pressure gas flow heat exchange device. [0002] The invention also relates to a method for exchanging heat using the above device. Background technique [0003] As a clean, safe, economical and sustainable energy source, nuclear energy has been widely accepted by the international community and has become an important choice for energy development in many countries and regions. One of the biggest challenges in using nuclear power to generate electricity is the disposal of spent nuclear waste generated during power production. The long-term risks of spent nuclear fuel mainly come from minor actinide nuclides and long-lived fission products, which need to decay for tens of thousands or even hundreds of thousands of years before their radioactive levels can be reduced to the level of natural uranium ore. Among them, landfilling of spent nuclear waste is a treatment mode commonly used by most nuclear powe...
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IPC IPC(8): G21C15/00G21C15/16
CPCG21C15/14G21C15/16Y02E30/30
Inventor 李勋锋蔡军淮秀兰王永伟郭江峰
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI