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我国蒸汽供热系统83年的能耗为2.2亿吨原煤,(折标煤1.6亿吨)耗煤量占全国总煤耗量的1/3。但是热能利用率很低,据国家计委83年的有关调查数据表明仅29.7％,其中工业锅炉的平均热效率为60％,热网输送效率为90％,用热设备的平均效率为55％。能源浪费很大,每年浪费标煤约3800万吨,国家要求在90年将热能利用率提高到38.8％,其中热网的输送效率提高5％,达到95％,
The energy consumption of China’s steam heating system for the year 83 is 220 million tons of raw coal, and coal consumption (160 million tons of standard coal equivalent) accounts for 1/3 of the country’s total coal consumption. However, the utilization rate of heat energy is very low. According to 83 years of relevant survey data from the State Development Planning Commission, it is only 29.7%, of which the average thermal efficiency of industrial boilers is 60%, the heat network transmission efficiency is 90%, and the average efficiency of heat equipment is 55%. The energy waste is very large, and about 38 million tons of standard coal is wasted every year. The state requires that the utilization of thermal energy be increased to 38.8% in the year 90, and the transmission efficiency of the heating network should be increased by 5% to 95%.