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Static pressure measuring device and pressurizing pressure measuring method in pressurized prevention and exhaust smoke facility
Static pressure measuring device and pressurizing pressure measuring method in pressurized prevention and exhaust smoke facility
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机译：增压防排烟设施中的静压测量装置及增压压力测量方法
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摘要
PROBLEM TO BE SOLVED: To accurately measure static pressure even in a case that the air flow direction in a pressurized smoke prevention equipment is unclear.SOLUTION: The static pressure measuring apparatus 20 comprises a first tube 21 having both ends 20a, 20b that open to pass air flow in an ancillary room 2, a second tube 22 that communicates to an inner space 21a of the first tube at the central vicinity 24 in the longitudinal direction of the first tube 21 and projects in the orthogonal direction with respect to the first tube 21, the second tube 22 having a terminal end 20c that opens, and a differential pressure gauge 30 that is connected to the terminal end 20c of the second tube 22 in a predetermined air-tight passage 26 and that outputs differential pressure between pressure applied from an inner space 22a of the second tube 22 and predetermined reference static pressure as static pressure of the ancillary room 2.
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