流量計(jì)校核試驗(yàn)報(bào)告

1、流量計(jì)校核實(shí)驗(yàn)報(bào)告一、實(shí)驗(yàn)操作1. 熟悉實(shí)驗(yàn)裝置，了解各閥門的位置及作用。2. 對(duì)裝置中有關(guān)管道、導(dǎo)壓管、壓差計(jì)進(jìn)行排氣，使倒U形壓差計(jì)處于工作狀態(tài)。3對(duì)應(yīng)每一個(gè)閥門開度，用容積法測(cè)量流量，同時(shí)記下壓差計(jì)的讀數(shù)，按由 小到大的順序在小流量時(shí)測(cè)量 8-9個(gè)點(diǎn)，大流量時(shí)測(cè)量5-6個(gè)點(diǎn)。為 保證標(biāo)定精度，最好再?gòu)拇罅髁康叫×髁恐貜?fù)一次，然后取其平均值。4.測(cè)量流量時(shí)應(yīng)保證每次測(cè)量中，計(jì)量桶液位差不小于100mm或測(cè)量時(shí)間不少于40&二、數(shù)據(jù)處理1數(shù)據(jù)記錄計(jì)量水箱規(guī)格：長(zhǎng) 400mm；寬300mm管徑 d (mm): 25孔板取喉徑d0 (mm): 15.347查出實(shí)驗(yàn)溫度下水的物性：粘度 卩

2、=0.000958 PaS密度 p = 996.2542 kg/m32.數(shù)據(jù)處理V UqAq Cq A0 2 p/CqUq2 p/Redud4V4Vd2d孔板流量計(jì)試驗(yàn)數(shù)據(jù)處理左/cm右/cmA R/m時(shí)間t/s水箱 高度 h/cm體積V/m3流量Qv/m3 s-1流速V/m s-1空流系數(shù)C0雷諾數(shù)Remin57.057.0Qv=h.S/tv= 4qvd2V=C. J2示Re=dv p/max33.145.3133.746.30.126406.70.0081932.05E-041.10780.704916916.60238.247.10.089416.10.0074541.82E-040.9

3、8330.744515014.92340.648.80.082415.70.0070221.71E-040.92640.730714146.29442.548.90.064405.20.0064061.60E-040.86620.773413228.02543.849.40.056414.90.0060371.47E-040.79640.760112160.84645.650.30.047414.50.0055441.35E-040.73130.762011168.12747.951.30.034413.90.0048051.17E-040.63380.77649679.04849.452.2

4、0.028413.50.0043121.05E-040.56880.76788686.32951.653.30.017412.90.0035738.71E-050.47130.81657197.23150.952.80.019403.00.0036969.24E-050.49980.81897631.55248.751.60.029413.70.0045581.11E-040.60130.79769182.68347.150.80.037404.00.0049281.23E-040.66630.782510175.40444.749.90.052414.70.005791.41E-040.76

5、380.756611664.48542.548.80.063415.20.0064061.56E-040.84510.760512905.39640.848.00.072415.60.0068991.68E-040.91010.766113898.11737.647.10.095416.30.0077621.89E-041.02390.750315635.37835.346.20.109416.90.0085012.07E-041.12140.767217124.45933.445.60.122406.70.0082542.06E-041.11610.721817043.80孔板流量計(jì)R-Qv

6、雙對(duì)數(shù)坐標(biāo)圖IgQv11J1111-0.600-4.100-4.050-4.000-3.950-3.900-3.850-3.800-3.750-3.700-3.6 50-2.000孔板流量計(jì)co-Re圖0.84000.82000.80000.78000.76000.74000.72000.70000.68003.83.944.14.24.3雷諾數(shù)的對(duì)數(shù)logRe文丘里流量計(jì)實(shí)驗(yàn)數(shù)據(jù)處理左/cm右/cmA R/m時(shí)間t/s水箱咼 度h/cm體積V/m3流量Qv/mi s-1流速V/m s-1空流系數(shù)C0雷諾數(shù)Remin66.366.3Qv=h.S/tv= 4qvd2V=C. j2gRRe=dv

7、pmax19.057.8129.662.70.3314017.70 ().02185.45E-044.4721.75655449.87234.164.10.34116.36 ().02024.92E-044.0321.66350001.92340.366.10.2584014.80 ().01824.56E-043.7391.66346364.86444.466.30.2194013.40 ().01654.13E-043.3851.63441979.00548.466.90.1853610.90 ().01343.73E-043.0601.60737941.22652.567.10.1464

8、011.80 ().01453.63E-042.9811.76236966.58756.566.40.099419.26).01142.78E-042.2821.63928301.82860.565.70.052407.00).00862.16E-041.7681.75221929.33163.365.30.02404.950.00611.52E-041.2511.99715507.17259.465.70.063417.950.00982.39E-041.9601.76324298.00356.466.20.098409.48).01172.92E-042.3951.72829698.574

9、51.966.40.1454011.02 ().01363.39E-042.7841.65134523.03545.365.40.2014013.80 ().01704.25E-043.4861.75743232.10640.765.20.2454013.68 ().01694.21E-043.4561.57742856.17737.065.00.284015.75 ().01944.85E-043.9791.69949340.98832.165.20.3314116.40 ().02024.93E-044.0421.58750124.17927.163.90.3684017.30 ().02135.33E-044.3711.62754196.76文丘里流量計(jì)R-Qv雙對(duì)數(shù)坐標(biāo)圖IgQv-1.000-1.200y = 2.233x + 7.302-1.400-1.600-1.800|1111111 ”-4.100 -4.050 -4.000 -3.950 -3.900 -3.850 -3.800 -3.750 -3.7-3.650-2.000文丘里流量計(jì)C0-Re單對(duì)數(shù)坐標(biāo)圖2.500y = -0.4311X + 3.66694.204.