|
姚
培
1,潘文群
1,李恩田
2
(1.
常州工程职业技术学院化工系化工原理组
,江苏常州
213164;2.江苏工业学院油气储运技术省重点实验室
,江苏常州
213216)
摘要
:安装在输油管路上用以保护离心泵､流量计等管路设备的过滤器的滤网引起的管路局部压降损失是不可忽略的｡通过量纲分析得到了滤网的局部水头损失系数
ξ的影响因素
:滤网开孔率
β和雷诺数
Re.并通过实验确定了
β和
Re对
ξ的具体影响
,Re对
ξ影响不大
,可认为与之无关
,而
β是影响
ξ的主要因素｡通过回归得到了ξ的计算公式｡另外
,还分析了输送介质含泥沙时滤网
ξ的变化情况｡
关键词
:过滤器
;压降
;π定理
Experimental Study on Pressure Drop Caused by Net Type Filter of Oil Pipe
Exper imenta l Study on Pressure Drop Caused by Net Type Filter of O il Pipe
YAO Pei1 , PAN Wen
2
qun1 L I En
2
tian2
( 1. Departmen t of Chem ica l Eng ineer ing, Changzhou In stitute of Eng ineer ing Technology, Changzhou 213164, China;
2. J iangsu Key Labora tory of O il & Ga s Storage and Tran sporta tion Technology,
J iangsu Polytechn ic Un iversity, Changzhou 213216, China)
Abstract:
The p ressure drop caused by a net
2
like filter,which is fixed on the p ipe laid to p rotect the centric pump and flowme
-
ter, etc cannot be ignored. The factors influencing the coefficient of the local loss of the filter is confirmed through dimension analysis,namely the perforation rate of the filter and renault number. Then, an experiment is carried out to find out the material relationship among them. The impact of renault number on the coefficient of the local loss of the filter is not so much and has little to do with thep ressure drop, but the perforation rate is the main factor. Also the calculation formula is gained through regression analysis. Further more, the variation of the coefficient of loacl loss of the filter, caused by bed load in the transportation medium, is analyzed.
Key words:
filter; p ressure drop;
π
theorem
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