用"床下进料"技术改造鼓泡床锅炉的方法  

Conversion of the bubble FB boiler by the technique of "under-the-bed feeding"

作　　者：高昌云 

机构地区：[1]云南东源集团电业公司,云南富源655500

出　　处：《煤炭加工与综合利用》2005年第2期35-37,i002,共4页Coal Processing & Comprehensive Utilization

摘　　要：论述了"床下进料"技术的系统构成、主要特点以及用该技术改造鼓泡床锅炉的方法;东源集团电业公司对早期的35t/h鼓泡床锅炉改造后,飞灰含碳量及沸下温度下降,炉膛出口温度上升,锅炉燃烧工况改善,增强了锅炉的过负荷能力,减少了受热面管束的磨损,延长了设备的使用寿命。Discussed were the system composition of the technique of 'under-the-bed feeding', its main features, and method of conversion of a bubble FB boiler with this technique; after such conversion applied to the existing 35t/h bubble FB boiler at Dongyuan Group Electricity Industry Co. ,attained were following results:reduction of carbon content in flyash and temperature under the bed, temperature increase at outlet of combustion chamber,improvement of combustion mode, increase of capability of over-loading of the boiler,reduction of abrasion on heat exchange tubes, prolongation of working life of the equipment.

关 键 词：低热值燃料电厂 鼓泡床锅炉 床下进料技术 改造 燃烧效率 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程]