Research and application of air volume measurement of main ventilation fan based on"three factors"judgement
On the basis of analyzing air volume measurement method of the main ventilation fan,and determining the arrangement of the air measurement point under different measurement methods,the air volume of the main ventilation fan in use in different coal mines was measured,the matching relationship between the fan diameter,whether a pitot tube is installed on the fan casing,and the number of stat-ic pressure holes on the fan casing and the selection of the measurement method was obtained.The main ventilation fan was classified,and the"three factors"judgement air volume measurement matching principle was established,and then the matching principle was measured and verified.
main ventilatorair volume measurement"three factors"judgement methodmatching principle
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