摘要
通过压差测量、电容层析成像(ECT)等手段,考察水平弯管和文丘里管的压差特性、流型特性和压差信号波动特性;根据文丘里压差有效信号,构造具有统计学意义的粉体流量稳定性评价指标。结果表明:文丘里管道压差信号更适于评价粉体流量的稳定性;粉体流量稳定性评价指标可以有效地评价不同操作条件下的粉体流量稳定性。
Using pressure drop measurement and electrical capacitance tomography( ECT) methods,the flow pattern,pressure drop and pressure fluctuation characteristics of syphon and Venturi pipes were investigated. By effective pressure drop signal of Venturi pipe,statistical evaluation index was constructed to evaluate the powder flow stability. The results show that,pressure drop signals of Venturi is appropriate to evaluate the powder flow stability in different operation conditions.
作者
杨石
刘振宇
王永英
张鑫
程晓磊
YANG Shi;LIU Zhenyu;WANG Yongying;ZHANG Xin;CHENG Xiaolei(China Coal Research Institute Company of Energy Conservation Co.Ltd;State Key Laboratory of Coal Mining and Clean Utilization;National Energy Technology&Equipment Laboratory of Coal Utilization and Emission Control,Beijing 100013,China)
出处
《中国粉体技术》
CAS
CSCD
2019年第1期40-45,共6页
China Powder Science and Technology
基金
煤炭科学技术研究院科技发展基金项目
编号:2016CX02
2018JC01
关键词
稀相气力输送
弯管
文丘里管
气固流动特性
dilute phase pneumatic conveying
syphon
Venturi
gas solid flow characteristics