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1、三、水動(dòng)力計(jì)算書水動(dòng)力計(jì)算書1(低壓省煤器設(shè)備）名稱符號(hào)計(jì)算公式單位結(jié)果管子內(nèi)徑d結(jié)構(gòu)數(shù)據(jù)m0.03管子根數(shù)N結(jié)構(gòu)數(shù)據(jù) 45管道截面FN*0.785*d*dm20.03流量 Dkg/h95000進(jìn)口水溫t1熱力計(jì)算℃70出口水溫t2熱力計(jì)算℃96.1平均水溫t熱力計(jì)算℃83.05省煤器壓力P熱力計(jì)算Mpa2.85水的重度γ kg/m3969.85水速WD/γ/3600/Fm/s0.86動(dòng)壓頭 w2γ/2gmmH2O36.24管子長(zhǎng)度L結(jié)構(gòu)數(shù)據(jù)m72180°彎頭 結(jié)構(gòu)數(shù)據(jù) 11180°彎頭 結(jié)構(gòu)數(shù)據(jù) 11彎頭阻力系數(shù)ξ彎 4.
2、2管子出口阻力系數(shù)ξc 1.1管子入口阻力系數(shù)ξr 0.6摩擦阻力系數(shù)λ1/(4*(lg3700*d/k)2) 0.0234阻力系數(shù)ζλL/d+ξ彎+ξc+ξr 62.11阻力ΔP1ζ*w2γ/2gmmH2O2251.077水動(dòng)力計(jì)算書2（DN200管道及附件）名稱符號(hào)計(jì)算公式單位結(jié)果流量 Dkg/h95000進(jìn)口水溫t1熱力計(jì)算℃70出口水溫t2熱力計(jì)算℃96.1平均水溫t熱力計(jì)算℃83.05水系統(tǒng)壓力P熱力計(jì)算Mpa2.85水的重度γ kg/m3969.85管子內(nèi)徑(219*6)d結(jié)構(gòu)數(shù)據(jù)m0.207管道截面F 0.
3、03水速 m/s0.81動(dòng)壓頭 w2γ/2g 32.38管子長(zhǎng)度L m22摩擦阻力系數(shù)λ 0.0249沿程阻力系數(shù)ζλL/d 2.65沿程阻力Δpyζ*w2γ/2gmmH2O85.69DN20090°彎頭當(dāng)量長(zhǎng)度Ld2.5m/個(gè)6個(gè)15DN200閘閥當(dāng)量長(zhǎng)度Ld2.5m/個(gè)2個(gè)5局部阻力ΔPz mmH2O77.90阻力ΔP2ΔPy+ΔPzmmH2O163.587水動(dòng)力計(jì)算書3（DN250管道及附件）名稱符號(hào)計(jì)算公式單位結(jié)果流量 Dkg/h190000進(jìn)口水溫t1熱力計(jì)算℃70出口水溫t2熱力計(jì)算℃96.1平均水溫t熱力計(jì)算
4、℃83.05水系統(tǒng)壓力P熱力計(jì)算Mpa2.85水的重度γ kg/m3969.85管子內(nèi)徑2(273*7)d2結(jié)構(gòu)數(shù)據(jù)m0.259管道截面F2 0.05水速 1.03動(dòng)壓頭 52.84管子長(zhǎng)度L 20摩擦阻力系數(shù)λ 0.0234沿程阻力系數(shù)ζ 1.81沿程阻力Δpyζ*w2γ/2gmmH2O95.49DN25090°彎頭當(dāng)量長(zhǎng)度Ld3.4m/個(gè)6個(gè)20.4DN250閘閥當(dāng)量長(zhǎng)度Ld3.4m/個(gè)4個(gè)13.6DN250三通當(dāng)量長(zhǎng)度Ld 1個(gè)22.5局部阻力ΔPz 269.75阻力ΔP3ΔPy+ΔPz 365.247
5、水動(dòng)力計(jì)算書4（DN300管道及附件）名稱符號(hào)計(jì)算公式單位結(jié)果流量 Dkg/h380000進(jìn)口水溫t1熱力計(jì)算℃70出口水溫t2熱力計(jì)算℃96.1平均水溫t熱力計(jì)算℃83.05水系統(tǒng)壓力P熱力計(jì)算Mpa2.85水的重度γ kg/m3969.85管子內(nèi)徑1(325*8)d1結(jié)構(gòu)數(shù)據(jù)m0.309管道截面F10.785*d*dm20.07水速WD/γ/3600/Fm/s1.45動(dòng)壓頭 w2γ/2gmmH2O104.33管子長(zhǎng)度L1結(jié)構(gòu)數(shù)據(jù)m410摩擦阻力系數(shù)λ1 0.0223沿程阻力系數(shù)ζ1λL/d 29.59沿程阻力Δpyζ*w
6、2γ/2gmmH2O3087.16DN30090°彎頭當(dāng)量長(zhǎng)度Ld4.2m/個(gè)39個(gè)163.8DN300閘閥當(dāng)量長(zhǎng)度Ld5.6m/個(gè)1個(gè)5.6DN300三通當(dāng)量長(zhǎng)度Ld 1個(gè)28.1局部阻力ΔPz 1487.11阻力ΔP4ΔPy+ΔPz 4574.26阻力合計(jì):ΔP=ΔP1+ΔP2+ΔP3+ΔP4=2251+164+365+4574=7354mmH2O7
