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一、前言低温热水在工业中普遍存在,量大面广,而目前尚难以有效利用,绝大部分被排掉,余热得不到回收。与此同时,不少企业需装设制冷机,另外消耗电力。如果这种品位低的余热能加以充分利用,这对提高我国能源利用率将是有意义的。首都钢铁公司利用高炉废渣的显热,加热废渣池的水,并通过一套过滤装置和热水泵,将滤清了的热水(80～90℃)送出,供
I. INTRODUCTION Low-temperature hot water is ubiquitous in the industry and has a large amount. However, it is still difficult to use it effectively. Most of it is drained, and waste heat is not recovered. At the same time, many companies need to install chillers and consume electricity. If this low-grade waste heat can be fully utilized, it will make sense to improve the energy efficiency of our country. The Capital Steel Company uses the sensible heat of the blast furnace slag to heat the water in the waste slag pool and sends the filtered hot water (80 to 90°C) through a set of filtering device and hot water pump.