Investigation the gas-solid flows in a circulating fludisied bed with multi-cyclone separators by electrical capacitance tomography
Investigation the gas-solid flows in a circulating fludisied bed with multi-cyclone separators by electrical capacitance tomography
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发表时间：
2013
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通讯作者：
Haigang Wang;G. Qiu;Wuqiang Yang
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作者：
Haigang Wang;G. Qiu;Wuqiang Yang
为了研究多旋风分离器循环流化床内的气固流动，设计了圆形ECT传感器和矩形ECT传感器，分别测量了旋风分离器入口和立管截面内的固体分布。矩形ECT传感器有12个电极，每个短边有两个，每个长边有四个。圆形ECT传感器有8个电极。对于图像重建，使用Ansoft的Maxwell模拟包计算灵敏度图。对不同流化速度下的循环流化床（CFB）过程在旋流器入口和下立管内进行了动力学试验。给出了电痉挛试验结果，并与压力测量结果进行了分析比较。
– To investigate the gas-solid flows in a circulating fluidised bed with multi-cyclone separators, a circular ECT sensor and rectangular ECT sensor are designed and used to measure the solids distribution in a cross-section in the inlet and standpipe of cyclone separator respectively. The rectangular ECT sensor has 12 electrodes with two in each shorter side and four in each longer side. The circular ECT sensor has 8 electrodes. For image reconstruction, sensitivity maps have been calculated using a simulation package, Maxwell from Ansoft. Dynamics test of CFB processes with different fluidisation velocity are given both in the inlet and downwards standpipe of the cyclone. ECT test results are given and analyzed and compared with pressure measurement results.