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本文通过对一具体的普通的20升大口径玻璃实验杜瓦瓶的近似漏热分析,指出漏热的主要途径是杜瓦端盖和杜瓦金属套,提出车杜瓦端盖直接辐射面上粘贴泡沫绝热柱和低黑度的镀铝涤纶薄膜以及在杜瓦金属套内凸缘上安装隔热屏的绝热措施。
In this paper, the approximate leakage heat analysis of a typical 20-liter large-diameter glass experimental Dewar was analyzed. It is pointed out that the main way of heat leakage is the Dewar cover and the Dewar metal sleeve, and the direct emission surface of the Dewar cover is proposed Adhere to foam insulation columns and low-density aluminum-plated polyester film and Dura metal flange installed on the flange insulation measures.