| 液氮贮罐冷损增加的原因及处理 |
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| 引用本文： | 赵良云.液氮贮罐冷损增加的原因及处理[J].深冷技术,2008(4). |
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| 作者姓名： | 赵良云 |
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| 作者单位： | 中国石化广州分公司公用工程部,广东省广州市黄埔区石化路510700 |
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| 摘 要： | 由于夹层真空度下降、绝热保温材料珠光砂下沉,造成4个液氮贮罐的冷损大幅增加,通过对夹层补充珠光砂、重新抽真空,有效提高了液氮贮罐的绝热保冷效果,降低冷损。
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| 关 键 词： | 低温液体贮罐 冷损 真空度 |
Cause and treatment of cold loss increase of liquid nitrogen tank |
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| Abstract: | Cold loss of four liquid nitrogen tanks increased markedly due to the decrease of sandwich vacuum and the subsidence of thermal insulating material(perlite sand).An improvement of liquid nitrogen tank insulation effect and a reduction of cold loss have been achieved by supplying perlite sand and repumping vacuum in the sandwich. |
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| Keywords: | Cryogenic liquid tank Cold loss Vacuum |
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