An overview of problems and solutions for components subjected to fireside of boilers

International Journal of Industrial Chemistry

دوره 9، شماره 1، خرداد 2018، صفحه 1-15

نوع مقاله: Review article

شناسه دیجیتال (DOI): https://doi.org/10.1007/s40090-017-0133-0

نویسندگان

Akash Singh¹؛ Vivek Sharma¹؛ Siddhant Mittal¹؛ Gopesh Pandey¹؛ Deepa Mudgal^{1، 2}؛ Pallav Gupta^{* 1}

¹Department of Mechanical and Automation Engineering, A.S.E.T., Amity University, Uttar Pradesh, Noida, India

²Department of Mechanical Engineering, Thapar University, Patiala, Punjab, India

چکیده

In engineering applications, there are various types of boilers such as water tube boilers, fire tube boilers, packaged boiler, fluidized bed combustion boiler, pulverized fuel boiler and waste heat boilers. These boilers are used in different industries such as power plants, paper, and chemical. The present paper reports various problems (such as agglomeration, slagging, fouling, caustic embrittlement, fatigue failure and high temperature corrosion) related to boilers and their possible solutions. Some of the controlling parameters for high temperature corrosion has also been studied viz use of inhibitors, varying temperature and pressure, sol–gel coating and thermal spray coating. Thermal spraying has emerged as a main tool for improvement in surface. Problem of corrosion, wear resistance, electrical or thermal insulation can be altered using different coating techniques and materials. Deposition of ash in biomass-fired boilers also causes severe problems of agglomeration. The problem of agglomeration can be solved using kaolin or NH₃ in the bed of boilers. Some important processes such as pulse detonation wave technology, intelligent soot blower, chemical treatment technology can be used to minimize the effects of fouling.

کلیدواژه‌ها

Boilers · Fuel · Slagging · Hot corrosion · Coatings · Thermal spray