Experimental Study on Low-temperature Corrosion and Fouling Heat Transfer Characteristics of Waste Heat Recovery Heat Exchanger for Waste Incineration

被引：0

作者：

Li J. ^{[1
]}

Zhang Y. ^{[1
]}

Yue M. ^{[1
]}

Du X. ^{[1
]}

Yan M. ^{[1
]}

Hu Q. ^{[1
]}

Shi Y. ^{[1
]}

机构：

[1] Shandong Engineering Laboratory for High-efficiency Energy Conservation and Energy Storage Technology & Equipment, Shandong University, Jinan

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2021年 / 41卷 / 24期

关键词：

Ash accumulation performance; Heat transfer deterioration; Low temperature corrosion; Waste heat utilization; Waste incineration;

D O I：

10.13334/j.0258-8013.pcsee.202566

中图分类号：

学科分类号：

摘要：

Waste incineration flue gas waste heat utilization can effectively improve the energy efficiency of waste incineration boilers, but the waste heat recovery heat exchanger has two technical bottlenecks: low-temperature corrosion caused by acid gas condensation, and heat transfer deterioration caused by fly ash deposition. It is necessary to study the fouling corrosion of metal materials by complex acid gases in the flue gas and the heat transfer performance of heat exchange tubes. Therefore, this paper built an on-site experimental platform to explore the factors affecting the corrosion resistance of different metal materials and the heat transfer performance of the heat exchange wall under different inlet oil temperature conditions. The experimental results show that there is no obvious corrosion phenomenon on the wall of the test tube, and there is less dust accumulation, and the heat exchange performance is good when the inlet oil temperature is within the range of 110℃ to177℃. In the range of 80℃ to 110℃, the wall ash is more, the corrosion is lighter, and the heat exchange is stable. In the range of 62℃ to 80℃, obvious corrosion phenomena begin to appear. At this time, the corrosion resistance of different materials is 316L steel>ND steel>Cowden steel>20 steel>Q235. The heat transfer of the test tube is stable, when the inlet oil temperature is higher than 70℃.The heat exchange effect changes abruptly at 70℃, and the heat exchange effect becomes worse as the temperature decreases. The conclusions of the experiment have great significance to break through the technical bottleneck of the waste heat recovery device. © 2021 Chin. Soc. for Elec. Eng.

引用

页码：8484 / 8493

页数：9

共 25 条

[1] WANG Zedi, TENG Yun, HUI Qian, Et al., A sustainable development multi-energy system planning method incorporating the demand of waste disposal and peak shaving, Proceedings of the CSEE, 41, 11, pp. 3781-3796, (2021)
[2] LI Wenhan, MA Zengyi, YANG Enquan, Characteristics of electrostatic precipitator ash and bag filter ash from a circulating fluidized bed municipal solid waste incinerator, Proceedings of the CSEE, 39, 5, pp. 1397-1405, (2019)
[3] China statistical yearbook, (2020)
[4] JIANG Mingnan, WANG Shoukang, HE Junjie, Prediction for operating parameters of large-scale domestic waste incineration grate furnace based on support vector machine, Proceedings of the CSEE, (2021)
[5] GB/T18750-2008 Municipal solid waste incinerator and boiler, (2008)
[6] FANG Dezhi, LI Kexun, An overview of power generation from municipal solid waste incineration plants at home and abroad, Power Generation Technology, 40, 4, pp. 367-376, (2019)
[7] SUN Xiaozhong, Research on current situation and development trend of garbage incineration power generation in China, Telecom World, 27, 4, pp. 137-138, (2020)
[8] ZHANG Bing, Analysis of several technical problems in the new household garbage incineration power generation Project, Resources Economization & Environmental Protection, 10, (2017)
[9] CHEN Ziyong, CHENG Min, LIAO Qiang, A review on ash deposition on heat exchanger surface in coal-fired boilers: mechanisms and influence factors, Proceedings of the CSEE, 39, 5, pp. 1349-1366, (2019)
[10] PERSSON K, BROSTROM M, CARLSSON J, High temperature corrosion in a 65 MW waste to energy plant, Fuel Processing Technology, 88, 11-12, pp. 1178-1182, (2007)

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