MA Chang-yongBeijing Zhongke General Energy and Enviroment protection Co Ltd. ANALYSIS OF CHARACTERS IN START-UP AND OPERATION OF EXTERNAL HEAT EXCHANGER FOR CERCUILATING FLUIDIZED BED MSW INCINARATOR[J]. Thermal power generation, 2010, 39(1): 46-48.
MA Chang-yongBeijing Zhongke General Energy and Enviroment protection Co Ltd. ANALYSIS OF CHARACTERS IN START-UP AND OPERATION OF EXTERNAL HEAT EXCHANGER FOR CERCUILATING FLUIDIZED BED MSW INCINARATOR[J]. Thermal power generation, 2010, 39(1): 46-48.DOI:
CFB垃圾焚烧炉外置式换热器启动及运行特性分析
摘要
介绍了日处理量为500 t的循环流化床垃圾焚烧炉外置式换热器(EHE)的设计特点
以及启动和运行特性。在焚烧炉起动过程中
较大的风量不利于EHE的启动;降低EHE循环灰积量
以及通过料腿反串进入分离器的流化风会降低分离器效率。随着循环灰量的增加
EHE内的料层高度增加
在DCS上反映出风室压力增加
热灰进出口温差降低。
Abstract
The design features of an external heat exchanger(EHE) for a 500 t/d municipal solid waste(MSW) incinerator of circulating fluidized bed(CFB) type has been presented.During process of starting the incinerator up
the comparatively large air flow rate is unfavourable for start-up of the EHE;decreasing accumulatin of circulating ash in EHE
as well as fluidized air reversely enters into cyclonic separater through its material leg
may decrease efficiency of said cyclonic separator.The height of material layer in EHE is increasing along with the increase of circulating ash
the pressure value in the air chamber is reflected on the DCS
the temperature difference of hot ash at inlet and outlet is also decreased.