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冷却,是重要的高温对策;水,则是最常用的冷却剂。但是,高温水的排出既带来环境问题又存在水自身的冷却(以便循环使用)问题。水又会带来腐蚀(生锈),长期使用的循环水还容易滋生微生物,污染环境,为此,各国专家都在通过各种途径寻求新的冷却剂。 1.液态金属对于原子反应堆,科学家们正在研究用液态钠(Na,溶点97.9℃,沸点877.5℃),液态镓(Ga,溶点29.8℃,沸点2300)等液态金属作为冷却剂,并取得了初步成果。由于这些金属以液体形态存在的温度范围很广,而且也不会产生热解作用,因此具有能在高温下使用的特点。但是,由于热交换器等装置一旦接触高温下的液态金属就会被溶化。因此,这种冷却方式
Cooling, is an important high-temperature measures; water, it is the most commonly used coolant. However, the discharge of high temperature water poses both environmental and water cooling problems (for recycling). Water will bring corrosion (rust), long-term use of recycled water is also easy to breed microorganisms, pollute the environment, therefore, experts from all over the world are in various ways to find new coolants. 1. Liquid Metals For atomic reactors, scientists are investigating the use of liquid metals such as liquid sodium (Na, melting point 97.9 ° C, boiling point 877.5 ° C), liquid gallium (Ga, melting point 29.8 ° C, boiling point 2300) The initial results. Due to their wide temperature range in liquid form and their absence of pyrolysis, these metals have the potential to be used at elevated temperatures. However, once a device such as a heat exchanger contacts the liquid metal at a high temperature, it is melted. Therefore, this cooling method