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1.前言我国自70年代初期先后引进建成了数套乙烯装置,其中裂解炉所用耐火材料基本上全部为进口,耐火材料用量最大的是轻质绝热砖。上海石化总厂化工一厂裂解炉从日本三菱公司引进,按美国 Laummus 公司专利制造,炉膛温度为1400℃左右。自1976年投产后裂解炉外壁平均温度升至144℃,比原设计值高近一倍,个别区域最高达360℃,致使炉壁钢板变形,散热损失剧增,并影响人身安全。为了解决上述问题,本厂接受了研制 HQ
1. Introduction China has introduced several sets of ethylene plant since the early 1970s, of which refractory materials used in pyrolysis furnace are basically all imported, and the largest amount of refractory material is lightweight thermal insulation brick. Shanghai Petrochemical Plant chemical plant a cracking furnace imported from Japan’s Mitsubishi Corporation, according to the United States Laummus company patents, furnace temperature of about 1400 ℃. Since 1976, the average temperature of the outer wall of the cracker rose to 144 ° C, nearly double the original design value and up to 360 ° C in some areas. As a result, the deformation of the steel plate in the furnace wall and the rapid increase of heat loss have been affected and personal safety has been affected. In order to solve the above problems, the factory accepted the development of HQ