施工的临时用电负荷计算.doc

施工设备型号改变功率改变另计拟投入本项目的主要施工设备表序号设备名称型号规格数量额定功率kw合计用于施工部位1潜水泵JQB15-6802.2基坑降水2塔吊TC5013 1240.1垂直运输3塔吊TC56135504施工电梯Sc200/2001738垂直运输5物料提升机SZ150-1310垂直运输6混凝土输送泵HTB-8010112地下室砼浇筑7打夯机HZD250144基坑回填8对焊机GQH3210100钢筋焊接9钢筋调直机GT6-14102.5钢筋调直10钢筋弯曲机WJ40-1103钢筋弯曲11钢筋切断机QJ40A104钢筋切断12直螺纹套丝机GYL-4054钢筋套丝13木工机械10套15模板制作14交流电焊机BX2-50075015交流电焊机BX2-30073016插入振动器Zx-50211.1砼振捣17平板振动器PZ-5041.5砼振捣18砂浆搅拌机CL200173二次结构19电动套丝机1/2-4''72.8安装20滚槽机TWG-70.75安装21切管机TWQ-70.75安装22开孔机TWK-70.55安装23台钻ZQ411670.37安装24高压水泵1718.525砂轮切割机40070.25安装类别名称单机功率数量砼搅拌设备类HTB-80混凝土输送泵112KW10PZ-50平板振动器1.5KW4Zx-50插入式振动棒1.1KW21钢筋加工设备组WJ40-1钢筋弯曲机3KW10QJ40A钢筋切断机4KW10GT6-14钢筋调直机2.5KW10GYL-40直螺纹套丝机4KW5GQH32对焊机100KVA10砂浆搅拌组CL200砂浆搅拌机3.0KW10起重设备类QTZ63塔吊40.1KW17Sc200/200施工电梯38KW17SZ150-1物料提升机10KW3安装加工设备类½4电动套丝机2.8KW7TWG-滚槽机0.75KW7TWQ-切管机0.75KW7TWK-开孔机0.55KW7ZQ4116台钻0.37KW7400砂轮切割机0.25KW7木加工机具MJ104圆盘锯等15KW10交流焊机类BX2-500交流电焊机50KVA7BX2-300交流电焊机30KVA7其它类HZD250打夯机4KW14JQB15-6潜水泵2.2KW80高压水泵18.5KW17场内照明用电镝灯3.5 KW18典钨灯1 KW20其他10KW施工设备型号改变功率改变另计根据用电设备的性质与平面布置方式，可分为以下八大类：3.2负荷计算: 砼搅拌设备类此类设备由于工程工序所需，16台混凝土输送泵，平板振动器与插入式振动器按同时使用考虑。3.2.1.1 HTB-80混凝土输送泵 单机功率112KW 共计10台查表可得KX =0.8 cos=0.8tg=0.75PjS=Kx.Pe=112×0.8=89.6 KWQjS=PjS.tg=89.6×0.75=67.2 KvarIjS=Pjs/3.Ue.cos=170.2 A3.2.1.2 PZ-50平板振动器 单机功率1.5KW 共计4台查表可得 KX =0.8 cos=0.8tg=0.75PjS=Kx.Pe=0.8×1.5=1.2 KWQjs=Pjs.tg=1.2×0.75=0.9 KvarIjs=Pjs/3.Ue.cos=2.3 A.3 Zx-50插入式振动器 单机功率1.1KW 共计21台查表可得 KX =0.8 cos=0.8tg=0.75Pjs=Kx.Pe=0.8×1.1=0.88 KWQjs=Pjs.tg=0.88×0.75=0.66 KvarIjs=Pjs/3.Ue.cos=1.7 A.4砼搅拌设备类技术参数合计：Pjs=89.6×10+1.2×4+0.88×21=919.28 KWQjs=67.2×10+0.9×4+0.66×21=689.46 KvarIjS= Sjs/3.Ue=1149.1/1.732×0.38=1745.93 A 钢筋加工类.1钢筋弯曲机 单机功率Pe=3 KW 共计10台查表可得KX =0.7 cos=0.7tg=1.02Pjs=Kx.Pe=0.7×3=2.1 KWQjs= Pjs.tg=2.1×1.02=2.14 KvarIjs=Pjs/3.Ue.cos=4.56 A.2钢筋切断机 单机功率Pe=4KW 共计10台查表可得KX =0.7 cos=0.7tg=1.02Pjs=Kx.Pe=0.7×4=2.8 KWQjs=Pjs.tg=2.8×1.02=2.86 KvarIjs=Pjs/3.Ue.cos=6.07 A.3 钢筋调直机 单机容量Pe=2.5KW 共计10台查表可得KX =0.7 cos=0.7tg=1.02Pjs=Kx.Pe=0.7×2.5=1.75 KWQjs=Pjs.tg=1.75×1.02=1.79 KvarIjs=Pjs/3.Ue.cos=3.80A.4 直螺纹套丝机 单机功率4KW 共计5台查表可得KX =0.7 cos=0.7tg=1.02Pjs=Kx.Pe=0.7×4=2.8 KWQjs=Pjs.tg=2.8×1.02=2.86 KvarIjs=Pjs/3.Ue.cos=6.07 A.5 对焊机单机容量Sr=100KVA 共计10台查表可得Kx=0.5 cos=0.5tg=1.73 Jc=0.65Pe=SrJc cos=100×0.65×0.5=40.3KWPjs=Kx*Pe= 40.3×0.5=20.15KWQjs=Pjs×tg= 20.15×1.73=34.86KvarIjs=Pjs/3 Ue cos= 20.15/3×0.38×0.5= 61.23A.6钢筋加工设备组技术参数合计：Pjs= 2.1*10+10*2.8+1.75*10+2.8*5+20.15*10=282KWQjs= 2.14*10+2.86*10+1.79*10+2.86*5+34.86*10=431.2Kvar.1 CL200砂浆搅拌机 单机功率3.0KW 共计10台查表可得KX =0.7 cos=0.82 tg=0.7Pjs=Kx.Pe=0.7×3.0=2.1 KWQjs=Pjs.tg=2.1×0.7=1.47 KvarPjs= 2.1*10=21KWQjs= 1.47*10=14.7Kvar.1 QTZ63塔吊 单机功率40.1KW 共计12台查表可得KX =0.3 cos=0.7 tg=1.02 Jc=0.15Pe=2PeJc=2×40.1×0.15=31.06KWPjs=Kx*Pe= 31.06×0.3=9.32KWQjs=Pjs×tg= 9.32×1.02=9.51Kvar.2 QTZ63塔吊 单机功率50KW 共计5台查表可得KX =0.3 cos=0.7 tg=1.02 Jc=0.15Pe=2PeJc=2×50×0.15=38.73KWPjs=Kx*Pe=38.73×0.3=11.62KWQjs=Pjs×tg=11.62×1.02=11.85Kvar3 Sc200/200施工电梯 单机功率38KW 共计17台查表可得KX =0.3 cos=0.7 tg=1.02 Pjs=Kx*Pe= 38×0.3=11.4KWQjs=Pjs×tg= 11.4×1.02=11.63Kvar3台查表可得KX =0.3 cos=0.7 tg=1.02 Pjs=Kx*Pe= 10×0.3=3KWQjs=Pjs×tg= 3×1.02=3.06KvarPjs=9.32*12+11.62×5+17*11.4+3*3=372.74KWQjs= 9.51*12+11.85×5+17*11.63+3.06*3=380.26KvarIjs= 20.23*22+16*24.73+6.51*3=860.27A 安装加工设备类.1 ½4电动套丝机 单机功率2.8 KW 共计6台查表可得KX =0.7 cos=0.75 tg=0.88Pjs=Kx*Pe= 2.8×0.75=2.1KWQjs=Pjs×tg= 2.1×0.88=1.85KvarIjs=Pjs/3 Ue cos= 2.1/3×0.38×0.75= 4.25A.2 TWG-滚槽机 单机功率0.75KW 共计6台查表可得KX =0.7 cos=0.75 tg=0.88Pjs=Kx*Pe= 0.75×0.75=0.56KWQjs=Pjs×tg= 0.56×0.88=0.49KvarIjs=Pjs/3 Ue cos= 0.56/3×0.38×0.75= 1.13A.3 TWQ-切管机 单机功率0.75KW 共计6台查表可得KX =0.7 cos=0.75 tg=0.88Pjs=Kx*Pe= 0.75×0.75=0.56KWQjs=Pjs×tg= 0.56×0.88=0.49KvarIjs=Pjs/3 Ue cos= 0.56/3×0.38×0.75= 1.13A.4 TWK-开孔机 单机功率0.55KW 共计6台查表可得KX =0.7 cos=0.75 tg=0.88Pjs=Kx*Pe= 0.55×0.75=0.41KWQjs=Pjs×tg= 0.41×0.88=0.36KvarIjs=Pjs/3 Ue cos= 0.41/3×0.38×0.75= 0.83A.5 ZQ4116台钻 单机功率0.37KW 共计6台查表可得KX =0.7 cos=0.75 tg=0.88Pjs=Kx*Pe= 0.37×0.75=0.28KWQjs=Pjs×tg= 0.28×0.88=0.25KvarIjs=Pjs/3 Ue cos= 0.28/3×0.38×0.75= 0.57A.6 400砂轮切割机 单机功率0.25KW 共计6台查表可得KX =0.7 cos=0.75 tg=0.88Pjs=Kx*Pe= 0.25×0.75=0.19KWQjs=Pjs×tg= 0.19×0.88=0.17KvarIjs=Pjs/3 Ue cos= 0.19/3×0.38×0.75= 0.38A.7安装加工类技术参数合计：Pjs=2.1+0.56+0.56+0.41+0.28+0.19*7=28.7KWQjs= 1.85+0.49+0.49+0.36+0.25+0.17*7=25.27KvarIjs=4.25+1.13+1.13+0.83+0.57+0.38*6=49.74A 木加工机具类.1 MJ104圆盘锯等 单机功率15 KW 共计10台查表可得KX =0.7 cos=0.75 tg=0.88Pjs=Kx*Pe=15×0.75=11.25KWQjs=Pjs×tg=11.25×0.88=9.9KvarIjs=Pjs/3 Ue cos= 11.25/3×0.38×0.75= 17.1A.2木加工机具类技术参数合计：Pjs=11.25*10=112.5KWQjs=9.9*10=99KvarIjs=17.1*12=205.2A 交流焊机类7台查表可得Kx=0.5 cos=0.5tg=1.73 Jc=0.65Pe=SrJc cos=50×0.65×0.5=20.16KWPjs=Kx*Pe= 20.16×0.5=10.08KWQjs=Pjs×tg=10.08×1.73=17.44KvarIjs=Pjs/3 Ue cos= 10.08/3×0.38×0.5= 30.64A.2 BX2-300交流电焊机 单机容量30KVA 共计7台查表可得Kx=0.5 cos=0.5tg=1.73 Jc=0.65Pe=SrJc cos=30×0.65×0.5=12.09KWPjs=Kx*Pe= 12.09×0.5=6.05KWQjs=Pjs×tg=6.05×1.73=10.47KvarIjs=Pjs/3 Ue cos= 6.05/3×0.38×0.5= 18.39A.3交流电焊机类技术参数合计：Pjs=10.08+6.05*7=112.91KWQjs=17.44+10.47*7=195.37KvarIjs=30.64+18.39*6=294.18A 其他类.1 HZD250打夯机 单机功率4 KW 共计14台查表可得KX =0.55 cos=0.8 tg=0.75Pjs=Kx*Pe= 0.55×4=2.2KWQjs=Pjs×tg= 2.2×0.75=1.65KvarIjs=Pjs/3 Ue cos= 2.2/3×0.38×0.8=4.18A.2 JQB15-6潜水泵 单机功率2.2KW 共计80台查表可得KX =0.55 cos=0.8 tg=0.75Pjs=Kx*Pe= 0.55×2.2=1.21KWQjs=Pjs×tg= 1.21×0.75=0.91KvarIjs=Pjs/3 Ue cos= 1.21/3×0.38×0.8=2.30A.3 高压水泵 单机功率18.5KW 共计17台查表可得KX =0.55 cos=0.8 tg=0.75Pjs=Kx*Pe= 0.55×18.5=10.18KWQjs=Pjs×tg= 10.18×0.75=7.64KvarIjs=Pjs/3 Ue cos= 10.18/3×0.38×0.8=19.33A.4其他类技术参数合计：Pjs=2.2*14+1.21*80+10.18*17=300.66KWQjs=1.65*14+0.91*80+7.64*17=255.78KvarIjs=4.18*10+2.30*40+19.33*16=443.08A3.2.9照明组：查表可得KX =1.0cos=1.0tg=0Pjs=Kx*Pe=1.0×3.5=3.5KWQjs=Pjs×tg=3.5×0=0KvarIjs=Pjs/3 Ue cos= 3.5/3×0.38×0.8=5.32A2 碘钨灯 单机功率1KW 共计20台查表可得KX =1.0cos=1.0tg=0Pjs=Kx*Pe=1.0×1=1KWQjs=Pjs×tg=1×0=0KvarIjs=Pjs/3 Ue cos= 1/3×0.38×0.8=1.90A3.2.9.3照明类技术参数合计：Pjs=2149.79×10%=214.98KWQjs=0=0KvarPjs=(919.28+282+21+372.74+28.7+112.5+112.91+300.66+214.98)=2364.77KWQjs=(689.46+431.2+14.7+380.26+25.27+99+195.37+255.78)=2090.54 Kvar各设备组的同期使用系数Kt取0.6如此：Pjs=0.6×2364.77 KW=1418.9KWQjs=0.6×2090.54 Kvar=1254.3KvarSjs=Pjs²+ Qjs²=1418.9²+ 1254.3²=1893.8KVA6变压器容量确实定考虑变压器的损耗，变压器容量Se应稍大于总视在功率Sjs。即：Se1.05SjsSe=1.05×1893.8=1988.49KVA本工程临时施工用电总计算负荷为1988.49KVA，因此，施工用电容量不得小于1989KVA。又因施工项目较多，且考虑生活区用电，计划选择3台630KVA的变压器，可满足本工程施工的正常用电。