Analysis on Capacity Improvement Renovation of Waste Incineration Power Plants
This paper systematically analyzes the problems that occur during the operation of the waste incinerator and waste heat boiler in a certain waste incineration power plant,and then proposes a capacity improvement renovation plan.Overall,the air-cooled wall structure is changed to a water-cooled combustion chamber structure;the structure of the front and rear arches is improved,with water-cooled walls arranged in the rear arches and fire-resistant casting materials applied externally;a vertically arranged screen type water-cooled wall is added below the second flue gas preheater,and a steam blowing point is added at this location;the original shock wave blowing scheme for the heating surface of the waste heat boiler is changed to a combined blowing method of steam blowing and shock wave blowing.After the renovation,the incinerator operates stably,and the waste treatment capacity increases from 500 t/d to 596 t/d;the inlet temperature of the high-temperature superheater has decreased from 620℃to 552℃;the evaporation rate increases by 23.9%compared to the design value;the monthly power generation has increased from 5.985 6 million kW·h to 7.174 7 million kW·h.The renovation ideas of this project can provide reference for the capacity improvement renovation of other waste incineration power plants.
waste incineration power plantwaste incineratorwaste heat boilercapacity improvementrenovation
国家科技期刊平台
NSTL
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