电厂烟气及冷却水余热利用系统的设计及分析.pdf

电厂烟气及冷却水余热利用系统的设计及分析 李英杰 杭州华电下沙热电有限公司，杭州市下沙经济技术开发区五洋路288 号 310018 For the design and analysis of a power plant flue gas and cooling water waste heat utilization system Abstract ：Now the worlds energy consumption heat heating water again, in order to achieve the increased rapidly, people faced the threat of energy purpose of heat to be recycled. This topic will choose depletion, in guarantee the quality of peoples life and a certain power plant cooling water and flue gas as can save energy, recycle waste heat, energy efficiency heat source of the unit to design a thermodynamic is very important. By adding devices to recycle energy, calculation and heat transfer calculation of waste heat power plant waste heat utilization is an effective utilization system, and analyzes its economic benefit. method. Finally concluded that adding heat to the heat Power plant waste heat utilization of waste heat utilization system, after years of 38404.29132 tons of of circulating cooling water waste heat and waste heat standard coal saving, played a good role in energy boiler flue gas. Using heat pump to heat the saving and emission reduction. condensate temperature and low pressure economizer Key words ：The cooling water waste heat ；Flue gas waste heat ；Waste heat utilization ；Low pressure to reduce smoke gas, increase the generating capacity, economizer in todays era of energy shortage has wide 摘要：现今世界能源用量迅速增长，人们面临着能 popularization value.