Gas distributors for circulating fluidized bed combustors

被引:0
|
作者
Hartge, EU [1 ]
Werther, J [1 ]
机构
[1] Tech Univ Hamburg Harburg, D-21071 Hamburg, Germany
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中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A high-speed video system has been used to study the flow in the vicinity and inside half-cut models of gas distributor nozzles as they are used in circulating fluidized bed combustors. From these measurements mechanisms for erosion and for the backflow of solids could be deduced. Nozzles with a bubble cap type design with a duct where gas is flowing downwards to the gas outlet and with low exit gas velocities seem to be necessary to avoid solids backflow and erosion.
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页码:213 / 220
页数:8
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