通風(fēng)機(jī)性能特性曲線的繪制報(bào)告

1、通風(fēng)機(jī)性能特性曲線的繪制報(bào)告1計(jì)算整理風(fēng)機(jī)風(fēng)量阻力風(fēng)量q： s 測(cè)點(diǎn)處的斷面積，本次測(cè)定根據(jù)表1分別求出12組風(fēng)量列入表2表1 一號(hào)風(fēng)機(jī)葉片角度25度多頭風(fēng)速儀風(fēng)硐測(cè)風(fēng)記錄測(cè)點(diǎn)風(fēng)表1m/s風(fēng)表2m/s風(fēng)表3m/s風(fēng)表4m/s風(fēng)表5m/s風(fēng)表6m/s風(fēng)表7m/s風(fēng)表8m/s平均風(fēng)速m/s110.410.410.210.812.110.511.210.810.800029.49.69.410.811.010.710.611.210.3375310.38.78.811.210.511.410.49.710.125049.39.18.810.110.810.710.39.99.875059.48.68

2、.410.49.79.710.09.49.450068.28.28.09.88.89.29.28.48.725077.67.67.89.08.38.78.48.28.200087.87.07.28.77.58.88.68.27.975096.86.86.88.27.58.08.07.67.4625107.26.06.28.06.97.57.67.27.0750114.13.53.24.54.74.14.54.34.1125123.24.03.64.43.33.93.63.83.7250根據(jù)計(jì)算密度。標(biāo)準(zhǔn)大氣壓=101325 ,相對(duì)大氣壓和相對(duì)靜壓已給出。此地絕對(duì)靜壓 ，求出12組數(shù)值列入表2.

3、 為同溫度下飽和水蒸氣壓力，可查表求得，列入表2.。為濕溫度,通過表1-1可查出，列入表2.。再可計(jì)算出12組空氣密度，列入表2.。對(duì)于風(fēng)硐來說：全壓=靜壓+動(dòng)壓。對(duì)于風(fēng)機(jī)裝置來說：全壓=靜壓+動(dòng)壓。因?yàn)轱L(fēng)機(jī)裝置靜壓就是風(fēng)硐的全壓，所以風(fēng)機(jī)的全壓就可以計(jì)算出：=+=+2 所以=+（） 計(jì)算出12組數(shù)值列入表2。全壓功率 計(jì)算出12組數(shù)值列入表2。通風(fēng)機(jī)的軸功率 為電壓 為電流 為功率因子 根據(jù)表1可計(jì)算出12組數(shù)值，列入表2. 全壓效率 計(jì)算出12組數(shù)值，列入表2。 表2測(cè)點(diǎn) 風(fēng)量（）全壓（pa）全壓功率（kw）全壓效率（%）密度（）絕對(duì)靜壓（pa）飽和水蒸氣分壓（pa）1114.912100

4、1.69115.1 361.211100464.62984.1832109.991286.15141.7 441.205100167.62810.9933107.731415.27152.5 461.206100033.42810.9934105.071555.66163.5 491.20499889.342810.9935100.5481796.68180.7 531.299635.482810.993692.8342212.59205.4 571.19499203.32810.993787.2452379.16207.6 581.19199031.82810.993884.8542514.78213.4 591.18898889.72637.804979.4012697.46214.2 601.18898693.72637.8041075.2782831.79215.2 591.18698552.582637.8041143.7572791.48122.1 401.18598553.562637.8041239.6342873.1113.9