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Design of a flat glass furnace waste heat power generation system

机译：平板玻璃炉余热发电系统的设计

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摘要

China is the largest glass producer in the world. Although the energy consumption of flat glass production has decreased significantly, from 12.6 MJ/kg in 2006 to 8.5 MJ/kg in 2010 and even lower now, very high energy recovery potential exists. A series of documents encouraging the development of glass furnace waste heat power generation systems have been issued by the Chinese government. There are already several waste heat power plants in China. This paper presents a power generation system using the waste heat from a 1200 t/d glass furnace. Two energy sources, viz. natural gas and petroleum coke, are studied. The system steam output is 23 t/h, and the power output 5.2 MW. The high sulfur content in the petroleum coke requires large heating surface area of deaerator to prevent acid corrosion, leading to high investment cost and long payback period. The annual power supply is about 31 million kWh, which means that a saving of 12,400 tons of coal equivalent and a reduction of 0.84 MJ energy consumption of per kilogram glass. The annual reduction of CO_2, SO_2, NO_x and dust are 28,500 tons, 79 tons, 83 tons and 33 tons, respectively.
机译：中国是世界上最大的玻璃生产国。尽管平板玻璃生产的能耗已大幅下降，从2006年的12.6 MJ / kg降低到2010年的8.5 MJ / kg，现在甚至更低，但仍具有很高的能量回收潜力。中国政府已经发布了一系列鼓励发展玻璃窑炉余热发电系统的文件。中国已经有几座余热发电厂。本文介绍了一种利用1200吨/日玻璃窑炉产生的废热的发电系统。两种能源，即。天然气和石油焦。系统的蒸汽输出量为23吨/小时，功率输出为5.2兆瓦。石油焦中的高硫含量要求脱气器的加热表面积大以防止酸腐蚀，从而导致高投资成本和长投资回收期。每年的电力供应约为3100万千瓦时，这意味着每公斤玻璃可节省12,400吨煤当量，并减少0.84 MJ能耗。每年减少的CO_2，SO_2，NO_x和粉尘分别为28,500吨，79吨，83吨和33吨。

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