旋渦流量計(jì)選型計(jì)算選型單位：,,,,,,,,,,,,,

1、根據(jù)用戶(hù)提供的密度、溫度、壓力參數(shù)進(jìn)行計(jì)算，（紅色數(shù)據(jù)必須輸入，綠色數(shù)據(jù)校核時(shí)用）,,,,,,,,,,,,,

氣體：,,1.實(shí)際密度ρ(kg/m3)=,,3.11,,標(biāo)準(zhǔn)密度ρn（kg/m3）=,,,1.2928,（在0℃、1大氣壓狀態(tài)下）,,,

,,2.實(shí)際密度ρ(kg/m3)=,,ρ×△TP=,3.110,運(yùn)動(dòng)粘度ν（m2/s）=,,,6.430,×1.0E-6,,,

,,溫度℃：,Tmax=,70,Tf常用=,60,Tmin=,20,,,,,

工況,,壓力MPa：,Pmax=,0.6,Pf常用=,0.196,Pmin=,0.1,,,,,

最大流量Qmax（m3/h）=,,,300,常用流量Qf（m3/h）=,,332.51,最小流量Qmin(m3/h)=,,60,（在工作狀態(tài)下）,,,

YF,YF內(nèi)徑,YF流通,最大流速,與ρ有關(guān)的,工況狀態(tài)時(shí)下,,氣體受,標(biāo)準(zhǔn)狀態(tài)下(0℃、1atm),,符合項(xiàng),,,YF

型號(hào),D,截面積S,Vmax,最低流速,流量Qmin,流量Qmax,溫度壓力,流量Qmin,流量Qmax,Qmin,,Qmax,型號(hào)

規(guī)格,（mm）,（m2）,（m/s）,Vmin（m/s）,（m3/h）,（m3/h）,影響△TP,（Nm3/h）,（Nm3/h）,Y/N,,Y/N,規(guī)格

102A,25.7,0.000519,80,3.80,7.1,149.5,2.40597,17.1,359.6,可,,不可,102A

104A,39.7,0.00124,80,3.16,14.1,357.1,2.40597,33.9,859.2,可,,可,104A

105A,51.1,0.00205,80,3.16,23.3,590.4,2.40597,56.1,1420.5,可,,可,105A

108A,71,0.00396,80,3.16,45.0,1140.5,2.40597,108.3,2744.0,可,,可,108A

110A,93.8,0.00691,80,3.16,78.5,1990.1,2.40597,189.0,4788.1,不可,,可,110A

115A,138.8,0.0151,80,3.91,212.5,4348.8,2.40597,511.3,10463.1,不可,,可,115A

120A,185.6,0.0271,80,5.02,489.6,7804.8,2.40597,1178.0,18778.1,不可,,可,120A

125A,230.8,0.0418,80,5.83,877.7,12038.4,2.40597,2111.8,28964.0,不可,,可,125A

注：1、輸入數(shù)據(jù)后點(diǎn)擊空格即生成表。,,,,,,,,,,,,,

2、若僅知標(biāo)準(zhǔn)密度，在輸入ρn、Tf常用、Pf常用即顯示2.標(biāo)準(zhǔn)密度,,,,,,,,選用Qmax、Qmin二個(gè)都顯示“可”的型號(hào)規(guī)格,,,,,

然后將數(shù)值輸入1.實(shí)際密度紅色空格內(nèi)。（ρn為0℃、1大氣壓）,,,,,,,判斷符合條件：,,計(jì)算的工況Qmax應(yīng)大于用戶(hù)的Qmax,,,,

3、若要計(jì)算Tmax、Pmax；Tmin、Pmin的值在相應(yīng)Tf、Pf紅色格內(nèi)輸入既可。,,,,,,,,,計(jì)算的工況Qmin應(yīng)小于用戶(hù)的Qmin,,,,

4、若粘度不知道，則雷諾數(shù)不能計(jì)算，但對(duì)流量計(jì)選型計(jì)算無(wú)影響。,,,,,,,,,,,,,

2、必要時(shí)，根據(jù)用戶(hù)提供的流量值對(duì)相關(guān)參數(shù)進(jìn)行校核,,,,,,,,,,,,,

,,,102A,104A,105A,108A,110A,115A,120A,125A,,,

最大流量時(shí)的雷諾數(shù)=,,,6.427E+05,4.160E+05,3.232E+05,2.326E+05,1.761E+05,1.190E+05,8.899E+04,7.156E+04,,,

最小流量時(shí)的雷諾數(shù)=,,,1.285E+05,8.321E+04,6.464E+04,4.652E+04,3.522E+04,2.380E+04,1.780E+04,1.431E+04,,,

最大流量時(shí)的壓力損失=,,,8.820E-01,1.545E-01,5.653E-02,1.515E-02,4.975E-03,1.042E-03,3.235E-04,1.360E-04,,,kg/cm2

常用流量時(shí)的壓力損失=,,,1.083E+00,1.898E-01,6.945E-02,1.861E-02,6.112E-03,1.280E-03,3.974E-04,1.670E-04,,,kg/cm2

最小流量時(shí)的壓力損失=,,,3.528E-02,6.180E-03,2.261E-03,6.060E-04,1.990E-04,4.168E-05,1.294E-05,5.439E-06,,,kg/cm2

注：1、可測(cè)最小流速，其雷諾數(shù)YF102A-YF120A