Title: Pressure-inducting device of air rate on-line monitor of ventilator and monitoring method thereof
Application Number: 94111460 Application Date: 1994.09.30
Publication Number: 1119728 Publication Date: 1996.04.03
Approval Pub. Date: Granted Pub. Date: 2000.02.09
International Classifi-cation: F24F11/00,G01F1/34
Applicant(s) Name: Chinese Univ. of Mining Technology Address: 221008
Inventor(s) Name: Hu Yafei, Chen Genglin
Attorney & Agent: ZHANG HUIZHONG
Abstract:
     The pressure lead-out device of on-line monitor of a ventilator includes a pressure-equalizing tube which has the same shape as the cross-section of its air duct and is fixed on the air tunnel wall of the air duct by means of fixing frame, and several pressure-measuring heads which are mounted on the pressure-equalizing tube and perpendicular to the cross-section of the air duct, their ends are just opposite to the direction of air flow. The pressure signal in the pressure-equalizing tube is led out through a pressure measurement leading-out conduit, and a water relief valve is mounted in the lowest place of the pressure-equalizing tube. Both ends of the convergent-divergent channel of the inlet or outlet air duct of the ventilator respectively are equipped with a set of the said devices to measure the pressures of both cross-sections so as to obtain the differential pressure value of both cross-sections to evaluate the air blast volume.
Time: 8
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