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一、改造的必要性我国的能源资源十分丰富,但能源的浪费也十分惊人,热能利用率比工业发达的先进国家低得多。提高热能利用率的工作应在各个方面开展,如改进耗能设备,改进耗能的工艺流程,改革能源利用政策等,发展“集中供热、热电联产”是提高热能利用率的一个重要方面。在我国的纺织、食品、化工等工业系统中,生产过程所需的蒸汽大多由工业锅炉直接供汽,这显然是不经济的。据不完全统计,全国拥有工业锅炉25万台,而且星罗棋步,十分分散,耗煤量也很大,约占我国煤
I. The Necessity of Transformation China’s energy resources are very rich, but the waste of energy is also very alarming. The utilization rate of thermal energy is much lower than that of developed countries. Work to improve the utilization of thermal energy should be carried out in various aspects, such as improving energy-consuming equipment, improving energy consumption process, reforming energy utilization policies and so on, and developing “central heating and cogeneration” is an important aspect of improving thermal energy utilization rate . In our country’s textile, food, chemical and other industrial systems, most of the steam required for the production process is supplied directly by industrial boilers, which is obviously not economical. According to incomplete statistics, there are 250,000 industrial boilers in the country, and their moves are very scattered and consume a lot of coal, accounting for about half of China’s coal