各管件水损估算表(完整版)

局部水头损失系数,,,,,,,,,

名称,图示,ξ,,,,,计算公式,流速V,水损H

,,规格,,偏心减缩管,渐放管,渐缩管,,,

,,D,d,,,,,,

异径管,,100,75,0.16,0.03,0.16,H=ξv2/2g,0.8,0.00522449

,,150,100,0.17,0.08,0.17,,0.8,0.00555102

,,200,100,0.18,0.19,0.19,,0.8,0.006204082

,,,150,0.17,0.06,0.17,,0.8,0.00555102

,,250,100,0.19,0.27,0.2,,0.8,0.006530612

,,,150,0.18,0.18,0.19,,0.8,0.006204082

,,,200,0.17,0.06,0.17,,0.8,0.00555102

,,300,100,0.2,0.32,0.2,,0.8,0.006530612

,,,150,0.19,0.26,0.2,,0.8,0.006530612

,,,200,0.18,0.16,0.19,,0.8,0.006204082

,,,250,0.17,0.05,0.17,,0.8,0.00555102

,,350,150,0.2,0.3,0.2,,0.8,0.006530612

,,,200,0.19,0.25,0.2,,0.8,0.006530612

,,,250,0.18,0.15,0.19,,0.8,0.006204082

,,,300,0.17,0.05,0.17,,0.8,0.00555102

,,400,150,0.2,0.33,0.21,,0.8,0.006857143

,,,200,0.2,0.3,0.2,,0.8,0.006530612

,,,250,0.19,0.24,0.2,,0.8,0.006530612

,,,300,0.18,0.13,0.19,,0.8,0.006204082

,,,350,0.17,0.04,0.17,,0.8,0.00555102

,,450,200,0.2,0.33,0.21,,0.8,0.006857143

,,,250,0.2,0.3,0.2,,0.8,0.006530612

,,,300,0.19,0.25,0.2,,0.8,0.006530612

,,,350,0.18,0.13,0.19,,0.8,0.006204082

,,,400,0.17,0.04,0.17,,0.8,0.00555102

局部水头损失系数,,,,,,,,,

名称,图示,ξ,,,,,计算公式,流速V,水损H

等径丁字管,直流汇合,Q总=Q支时,,,,1.5,H=ξv总2/2g,0.8,0.048979592

,,Q支=0时,,,,0.1,,0.8,0.003265306

,直流分支,Q总=Q支时,,,,1.5,,0.8,0.048979592

,,Q支=0时,,,,0.1,,0.8,0.003265306

,直流,,,,,0.1,,0.8,0.003265306

,转弯流,,,,,1.5,,0.8,0.048979592

,分直流,,,,,1.5,,0.8,0.048979592

,汇合流,,,,,3,,0.8,0.097959184

局部水头损失系数,,,,,,,,,

名称,图示,ξ,,计算公式,流速V,水损H,,,

,,规格,ξ,,,,,,

钢制焊接弯管,45度弯头,80,0.26,H=ξv2/2g,0.8,0.008489796,,,

,,100,0.32,,0.8,0.01044898,,,

,,125,0.33,,0.8,0.01077551,,,

,,150,0.36,,0.8,0.011755102,,,

,,200,0.36,,0.8,0.011755102,,,

,,250,0.44,,0.8,0.014367347,,,

,,300,0.39,,0.8,0.012734694,,,

,,350,0.45,,0.8,0.014693878,,,

,,400,0.45,,0.8,0.014693878,,,

,,450,0.51,,0.8,0.016653061,,,

,,500,0.48,,0.8,0.015673469,,,

,,600,0.51,,0.8,0.016653061,,,

,,700,0.51,,0.8,0.016653061,,,

,,800,0.53,,0.8,0.017306122,,,

,,900,0.54,,0.8,0.017632653,,,

,,1000,0.54,,0.8,0.017632653,,,

,90度弯头,80,0.51,,0.8,0.016653061,,,

,,100,0.63,,0.8,0.020571429,,,

,,125,0.65,,0.8,0.02122449,,,

,,150,0.72,,0.8,0.023510204,,,

,,200,0.72,,0.8,0.023510204,,,

,,250,0.87,,0.8,0.028408163,,,

,,300,0.78,,0.8,0.025469388,,,

,,350,0.89,,0.8,0.029061224,,,

,,400,0.9,,0.8,0.029387755,,,

,,450,1.01,,0.8,0.032979592,,,

,,500,0.96,,0.8,0.031346939,,,

,,600,1.01,,0.8,0.032979592,,,

,,700,1.02,,0.8,0.033306122,,,

,,800,1.05,,0.8,0.034285714,,,

,,900,1.07,,0.8,0.034938776,,,

,,1000,1.08,,0.8,0.035265306,,,

铸铁弯管,铸铁90度弯头,75,0.34,,0.8,0.011102041,,,

,,100,0.42,,0.8,0.013714286,,,

,,125,0.43,,0.8,0.014040816,,,

,,150,0.48,,0.8,0.015673469,,,

,,200,0.48,,0.8,0.015673469,,,

,,250,0.58,,0.8,0.018938776,,,

,,300,0.52,,0.8,0.016979592,,,

,,350,0.59,,0.8,0.019265306,,,

,,400,0.6,,0.8,0.019591837,,,

,,450,0.67,,0.8,0.021877551,,,

,,500,0.64,,0.8,0.020897959,,,

,,600,0.67,,0.8,0.021877551,,,

,,700,0.68,,0.8,0.022204082,,,

,,800,0.7,,0.8,0.022857143,,,

,,900,0.71,,0.8,0.023183673,,,

,铸铁45度弯头,75,0.17,,0.8,0.00555102,,,

,,100,0.21,,0.8,0.006857143,,,

,,125,0.22,,0.8,0.007183673,,,

,,150,0.24,,0.8,0.007836735,,,

,,200,0.24,,0.8,0.007836735,,,

,,250,0.29,,0.8,0.009469388,,,

,,300,0.26,,0.8,0.008489796,,,

,,350,0.3,,0.8,0.009795918,,,

,,400,0.3,,0.8,0.009795918,,,

,,450,0.34,,0.8,0.011102041,,,

,,500,0.32,,0.8,0.01044898,,,

,,600,0.34,,0.8,0.011102041,,,

,,700,0.34,,0.8,0.011102041,,,

,,800,0.35,,0.8,0.011428571,,,

,,900,0.36,,0.8,0.011755102,,,

局部水头损失系数,,,,,,,,,

名称,图示,ξ,,计算公式,流速V,水损H,,,

,,规格,ξ,,,,,,

升降式止回阀,,,7.5,H=ξv2/2g,0.8,0.244897959,,,

旋启式止回阀,,150,6.5,,0.8,0.212244898,,,

,,200,5.5,,0.8,0.179591837,,,

,,250,4.5,,0.8,0.146938776,,,

,,300,3.5,,0.8,0.114285714,,,

,,350,3,,0.8,0.097959184,,,

,,400,2.5,,0.8,0.081632653,,,

,,500,1.8,,0.8,0.05877551,,,

,,>600,1.7,,0.8,0.055510204,,,

水泵入口,,,1,,0.8,0.032653061,,,

蝶阀,矩形蝶阀,5,0.28,,0.8,0.009142857,,,

,,10,0.45,,0.8,0.014693878,,,

,,15,0.77,,0.8,0.025142857,,,

,,20,1.34,,0.8,0.043755102,,,

,,25,2.26,,0.8,0.073795918,,,

,,30,3.54,,0.8,0.115591837,,,

,,35,5.7,,0.8,0.186122449,,,

,,40,9.3,,0.8,0.303673469,,,

,,45,15.1,,0.8,0.493061224,,,

,,50,24.9,,0.8,0.813061224,,,

,,60,77.4,,0.8,2.527346939,,,

,,70,368,,0.8,12.01632653,,,

,,90,∞,,0.8,,,,

,圆形蝶阀,全开,0.2,,0.8,0.006530612,,,

,,5,0.24,,0.8,0.007836735,,,

,,10,0.52,,0.8,0.016979592,,,

,,15,0.9,,0.8,0.029387755,,,

,,20,1.54,,0.8,0.050285714,,,

,,25,2.51,,0.8,0.081959184,,,

,,30,3.91,,0.8,0.127673469,,,

,,35,6.22,,0.8,0.203102041,,,

,,40,10.8,,0.8,0.352653061,,,

,,45,18.7,,0.8,0.610612245,,,

,,50,32.6,,0.8,1.064489796,,,

,,55,58.8,,0.8,1.92,,,

,,60,118,,0.8,3.853061224,,,

,,65,256,,0.8,8.359183673,,,

,,70,751,,0.8,24.52244898,,,

,,90,∞,,0.8,,,,

软链接,光滑煨弯,50,2,,0.8,0.065306122,,,

,,100,2.1,,0.8,0.068571429,,,

,,150,2.2,,0.8,0.071836735,,,

,,200,2.3,,0.8,0.0751