流体力学-chapter p第五章压力管路水力计算

第五章压力管路的水力计算hydraulic

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pipe5.1

管路特性曲线characteristic

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pipe一、预备知识流态的判别

Re沿程摩阻损失

hf二、本节重点长管水力设计计算管路特性与综合阻力系数孔口泄流1管路特性曲线characteristic

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pipe压力管路凡是液流充满全管在一定压差 动的管路都称为 。其压力可以高于大气压(如泵的排出管线)，也可以低于大气压(如泵的吸入管线)。例如：炼厂的输油管陕京输气管线第五章压力管路的水力计算hydraulic

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pipe2第五章压力管路的水力计算hydraulic

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pipe35.1

管路特性曲线characteristic

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pipe第五章压力管路的水力计算hydraulic

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pipe5.1

管路特性曲线characteristic

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pipe4第五章压力管路的水力计算hydraulic

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pipe5.1

管路特性曲线characteristic

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flow

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pipe5第五章压力管路的水力计算hydraulic

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pipe65.1

管路特性曲线characteristic

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pipe长管水力计算hydraulic

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pipe简单长管simple

long

pipe第五章压力管路的水力计算hydraulic

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pipe7第五章压力管路的水力计算hydraulic

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pipe85.2

长管水力计算hydraulic

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pipe第五章压力管路的水力计算hydraulic

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pipe95.2

长管水力计算hydraulic

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pipe第五章压力管路的水力计算hydraulic

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pipe105.2

长管水力计算hydraulic

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pipe管路的设计计算常常会遇到以下三大类情况：第一类情况第五章压力管路的水力计算hydraulic

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pipe115.2

长管水力计算hydraulic

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pipe是：2)根据流态，确定水力摩阻系数的计算式，再算出水头损失。第五章压力管路的水力计算hydraulic

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pipe125.2

长管水力计算hydraulic

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pipe5.2

长管水力计算hydraulic

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pipe(2)第二类情况，13第五章压力管路的水力计算hydraulic

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pipe第五章压力管路的水力计算hydraulic

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pipe145.2

长管水力计算hydraulic

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pipe5.2

长管水力计算hydraulic

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pipe(3)第三类情况第五章压力管路的水力计算hydraulic

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pipe15第五章压力管路的水力计算hydraulic

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pipe5.2

长管水力计算hydraulic

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pipe16根据设计流量，在适宜的流速范围内选择几个不同的管径。按照所选管径算出实际流速。根据实际流速、管径及油品粘度计算雷诺数，确定流态，进而计算水头损失由总水头损失及压降确定泵的扬程、功率，算出每年动力消耗费用第五章压力管路的水力计算hydraulic

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pipe175.2

长管水力计算hydraulic

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pipe5.2

长管水力计算hydraulic

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pipe计算全部设备投资、管线投资及每年平均折旧费计算每年的检修、保养及把选用不同管径时每年所需各种费用全部开支一一算出第五章压力管路的水力计算hydraulic

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pipe18第五章压力管路的水力计算hydraulic

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pipe195.2

长管水力计算hydraulic

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pipe5.2

长管水力计算hydraulic

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pipe5.2.2

串联和并联管路series

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parallel

connection

pipe第五章压力管路的水力计算hydraulic

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pipe20(1)串联和并联的水力特性第五章压力管路的水力计算hydraulic

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pipe215.2

长管水力计算hydraulic

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pipe第五章压力管路的水力计算hydraulic

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pipe225.2

长管水力计算hydraulic

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pipe第五章压力管路的水力计算hydraulic

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pipe235.2

长管水力计算hydraulic

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pipe第五章压力管路的水力计算hydraulic

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pipe5.2

长管水力计算hydraulic

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pipe24第五章压力管路的水力计算hydraulic

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pipe255.2

长管水力计算hydraulic

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pipe第五章压力管路的水力计算hydraulic

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pipe265.2

长管水力计算hydraulic

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pipe第五章压力管路的水力计算hydraulic

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pipe275.2

长管水力计算hydraulic

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pipe第五章压力管路的水力计算hydraulic

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pipe5.2

长管水力计算hydraulic

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pipe28第五章压力管路的水力计算hydraulic

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pipe5.2

长管水力计算hydraulic

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pipe295.2

长管水力计算hydraulic

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pipe5.2.3

分支管路division

pipe第五章压力管路的水力计算hydraulic

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pipe30。第五章压力管路的水力计算hydraulic

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pipe315.2

长管水力计算hydraulic

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pipe第五章压力管路的水力计算hydraulic

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pipe32短管水力计算hydraulic

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pipe综合阻力系数synthesize

resistant

coefficient第五章压力管路的水力计算hydraulic

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pipe5.3

短管水力计算hydraulic

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shortpipe33第五章压力管路的水力计算hydraulic

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pipe345.3

短管水力计算hydraulic

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shortpipe5.3

短管水力计算hydraulic

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shortpipe5.3.2

短管实用计算通式第五章压力管路的水力计算hydraulic

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pipe35第五章压力管路的水力计算hydraulic

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pipe365.3

短管水力计算hydraulic

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shortpipe第五章压力管路的水力计算hydraulic

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pipe375.3

短管水力计算hydraulic

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shortpipe第五章压力管路的水力计算hydraulic

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pipe385.4