摘要
本文应用浆体管道水力坡度的普遍性数学模型进行计算,其结果与得自不同管径及浆体浓度的大量试验数据符合良好,有力地证实了管道阻力计算模型的可靠性。这样,在煤浆管道初步设计阶段可免去依靠环管试验来取得局限性很大的设计数据。通过对管道输送实际数据分析,文中提出了确定管径与流速的经验公式,表明管径及流速分别与浆体流量的3/7及1/7次方成比例。
The pressure gradient of slurry pipeline transportation is calculated in the paper by using a generalized model. Good agreement between the result of calculation and a great number of experimental data obtained from the test loops with different size of pipes and slurry concentration, strongly supports the validity of the model. Thus, loop test can be eliminated in the preliminary design stage, because the results of test have great limitations for the design.
Based on analysis of practical data of pipeline transportation, some empiric formulae for determining diameter of pipe, and velocity of slurry are also given. It is found that the diameter and velocity are proportional to the 3/7 and 1/7 order of slurry flow rate respectively.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1991年第1期1-11,共11页
Journal of China Coal Society
关键词
煤浆
管道输送
参数
计算模型
coal slurry
pipeline transportation
pressure gradient
