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采用作用面积法计算K80中危险级1级计算原理参照《自动喷水灭火系统设计规范GB500842001》,采用作用面积法基本计算公式1喷头流量qKSQRT10P式中:q喷头处节点流量,Lmi
P喷头处水压,MPaK喷头流量系数2流速VV4QπDjDj式中:Q管段流量LsDj管道的计算内径(m)3水力坡降i000107VVpowDj13式中:i每米管道的水头损失(mH20m)V管道内水的平均流速(ms)Dj管道的计算内径(m)4沿程水头损失hiL式中:L管段长度m5局部损失(采用当量长度法)hiL当量式中:L当量管段当量长度,单位m《自动喷水灭火系统设计规范》附录C6总损失hh局h沿7终点压力H
H
1h
管段名称122317334
起点压力mH2O600762684856
管道流量Ls103219110329
管长m300180102232
当量长度050030230040
管径mm25322532
水力坡降mH2Om0462044905271013
流速ms194231207347
损失mH2O162095175276
终点压力mH2O7628568591132
f18445192020212221215562324242527252526282626629303031323131667333434353735353638363677889910101111121213131414151516
90311326007507008661401600799716896919118060075070086617216007997168968881190185720852232234724362621266926842776
1264551032181113297841032221123341274611032181113291574103222112334125459203320332033203320332033203320332033
067083195231096154390300181105232114083195231097154390300181102232167083392225157104294348042193250
260210130030230210080130030230040260360130030230360080130030230050290360080080080080090090090640160
2540253225325025322532254025322532802532253225508080808080100100100125
069509210462044505391015068104620460055110460707094604620445053910150289046204600551104606830233048304830483048304830110011001100036
238362194230209347369194234212352240367194230209347317194234212352236216410410410410410235235235153
227270150116176370320199097185284264419150116176522136199097183295312103228147114089185048015092015
113014017508668761236172179989690011801183159975086687613881857799896899119012001294208522322347243626212669268427762790
计算结果所选作用面积1619平方米总流量2033Ls平均喷水强度754Lmi
平r
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