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据调查,我国80％以上的热处理炉是50年代苏联模式,热效率仅5％～8％,炉温均匀性差,能耗很高,国内平均水平为210kgce/t,而国外平均水平为115kgce/t,差距是显而易见的。近年来,许多专家学者曾致力于热处理炉的节能改造,如炉体结构轻型化、加强炉体密封等,但因其排烟温度高,且为周期式工作,占热支出35％以上的烟气余热很难回收利用。 由于炉型陈旧,炉体密封差;采用传统的燃烧烧、排
According to the survey, more than 80% of China’s heat treatment furnaces were Soviet-style in the 1950s with a thermal efficiency of only 5% -8%. The furnace temperature uniformity was poor and the energy consumption was very high with a domestic average of 210kgce / t, while the foreign average was 115kgce / t The difference is obvious. In recent years, many experts and scholars have devoted themselves to the energy-saving reforming of heat treatment furnaces, such as the light weight of the furnace body structure and the strengthening of the furnace seal, etc. However, because of their high exhaust gas temperature and their periodic work, Gas heat is difficult to recycle. As the furnace obsolete, poor furnace seal; the use of traditional combustion, row