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近一、二十年来油罐的设计及施工技术都较过去有了更快的发展,从世界范围来讲,这一状况与国际上的能源危机有关,许多靠进口原油的工业化国家都增加了原油的储备量。日本1972年上半年国家规定储油日数为47.5日,到1974年下半年就改为60日,(约为5010万吨),这比60年代初期大了许多倍。西方一些工业化国家也不例外,英、法规定要有90日的储备量,西德在1975年规定要有55日储备量,而在1976年10月又决定改为70日的储备量,由于原油储备量的增加,促进了油罐事业的发展,并有越来越多的工程技术人员从事油罐的设计,研究工作。近二十年来,油罐发展的明显趋势是大
In the past one or two decades, the design and construction technology for oil tanks have developed more rapidly than in the past. From the worldwide perspective, this situation is related to the international energy crisis. Many industrialized countries importing crude oil have increased Crude oil reserves. In the first half of 1972, the number of oil storage days stipulated by the state was 47.5 days in Japan in the first half of 1972, and was changed to 60 days in the second half of 1974 (about 50.1 million tons), many times larger than the early 1960s. Some western industrialized countries are no exception. Britain and France require a reserve of 90 days. West Germany required a reserve of 55 days in 1975 and a reserve of 70 days in October 1976, The increase of crude oil reserves has promoted the development of the oil tank business and more and more engineering and technical personnel are engaged in the design and research of oil tanks. In the past 20 years, the obvious trend of oil tank development is great