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1、水力計(jì)算說(shuō)明書設(shè)計(jì)者:班級(jí):同組人:he"governingforthepeople","Nomattertheinterestsofthemasses"conceptunderstandingisnotinplace.Thespecificworktreatswiththedeployment,afewleadingcadrescomplainthatworkistoocomplicated,toomuchresponsibility,thepressureistoolarge,toomuchemphasisonthedifficultyofthework.Forexample,no
2、ncoalmine水力計(jì)算說(shuō)明書一.給排水系統(tǒng):1.計(jì)算各管段衛(wèi)生器具給水當(dāng)量:給水當(dāng)量取值:洗臉盆0.5蹲便器0.5小便器0.5污水盆0.75據(jù)公式取v=1.0m/sα=1.5給水1(JL1):Ng1=0.5×4+0.75×1+0.5×2=3.75設(shè)計(jì)秒流量+1.1=1.68L/sd3=0.0462m給水2(JL2):Ng2=0.5×6+0.5+0.5=4qg=0.6L/sd2=0.0276m給水3(JL3):Ng3=0.5×5=2.5+1.1=1.57L/s管徑d1=0.0447m給水4(JL4):Ng4=0.5×3+0.75+0.5×2=3.25qg=1.64L/sd4=0.04
3、57m故取d1=DN50,d2=DN32,d3=DN50,d4=DN502.計(jì)算各衛(wèi)生器具排水當(dāng)量:排水當(dāng)量取值:洗臉盆0.75蹲便器4.5小便器0.3污水盆1排水流量取值:洗臉盆0.25蹲便器1.5小便器0.1污水盆0.33(L/s)據(jù)公式α=2.0i=0.026排水支管1:Np1=4.5×4+1+0.75×2=20.5qp1=2.5866L/s查附表8得排水管1管徑:d1=de75排水管(WL1):Np=20.5×4=82qp=3.673L/s查表4.411-3得排水管WL1管徑:d=de100據(jù)規(guī)范取d=de110排水支管2(WL2):Np2=0.3×6+0.75+4.5=7.0
4、5qp=0.9672L/s查附表8得排水管2管徑:d2=de50排水管(WL2):Np=7.05×4=28.2qp=2.774L/s查表4.411-3得排水管WL1管徑:d=de75排水支管3(WL3):Np3=4.5×5=22.5qp=2.6384L/s查附表8得排水管管徑3:d3=de75排水管(WL3):Np=22.5×4=90qp=3.777L/s查表4.411-3得排水管WL1管徑:d=de100據(jù)規(guī)范取d=de110排水支管4(WL4):Np4=4.5×3+1+0.75×2=16qp=2.4607L/s查附表8得排水管管徑4:d4=de75he"governingforth
5、epeople","Nomattertheinterestsofthemasses"conceptunderstandingisnotinplace.Thespecificworktreatswiththedeployment,afewleadingcadrescomplainthatworkistoocomplicated,toomuchresponsibility,thepressureistoolarge,toomuchemphasisonthedifficultyofthework.Forexample,noncoalmine排水管(WL1):Np=16×4=64qp=3.42
6、L/s查表4.411-3得排水管WL1管徑:d=de100據(jù)規(guī)范取d=de110二、室內(nèi)消火栓系統(tǒng)1消防系統(tǒng)的設(shè)置該建筑為高度不超過(guò)50米的辦公樓,室內(nèi)消火栓系統(tǒng)采用臨時(shí)高壓制不分區(qū)給水系統(tǒng),屋頂設(shè)高位水箱,供火災(zāi)初期給水。消火栓選用65mm口徑消火栓、19mm噴嘴水槍、直徑65mm、長(zhǎng)度25m的麻質(zhì)水龍帶。2設(shè)計(jì)用水水量本建筑為辦公樓,按規(guī)范規(guī)定消火栓系統(tǒng)用水量為15L/s,同時(shí)使用的水槍數(shù)量為3,每根立管最小流量為10L/s。設(shè)計(jì)充實(shí)水柱取0.12MPa。3消火栓布置間距水龍帶有效長(zhǎng)度:=0.8×25=20m水槍充實(shí)水柱在水平面的投影長(zhǎng)度:=12×sin45°=8.52(m)消火栓
7、保護(hù)半徑:R=+=20+8.52=28.52(m)消火栓最大保護(hù)寬度的一半:b=2.55+7.35=9.9(m)消火栓間距:S===26.78(m)消火栓最大布置間距取22m。已知該辦公樓長(zhǎng)為43.2m,因而,每層布置3個(gè)消火栓。4最不利點(diǎn)消火栓所需壓力(1)最不利層消火栓水槍造成12m充實(shí)水柱所需的壓力為:=(2)水槍噴嘴射流量水龍帶沿程水頭損失消火栓栓口所需水壓5計(jì)算消防給水管道管徑室內(nèi)消火栓用水量15L/s同時(shí)使用的水槍數(shù)量為3,每根立管