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介绍一种卧式相变烟气余热回收系统协同供热技术,阐述了该技术的原理及其主要特点,并对该技术在某200 MW机组投运后的经济性进行分析。得出以下结论:该系统具有适用性强、安全及可靠性高、高效性、便于切换等特点;该系统经济效益显著,工程投入运行后,冬季额定供热工况下,机组年平均标煤耗降低2.04 g/(k W·h),回收热量11.75 GJ/h,年收益96万元。
A horizontal phase change flue gas waste heat recovery system co-heating technology is introduced. The principle of the technology and its main features are described. The economy of the 200 MW unit after it is put into operation is analyzed. The following conclusions are drawn: The system has the characteristics of strong applicability, high safety and reliability, high efficiency, easy to switch and so on. The economic benefit of this system is remarkable. After the project is put into operation, under the condition of the winter rated heat supply, Reduce 2.04 g / (k W · h), heat recovery 11.75 GJ / h, the annual income of 960,000 yuan.