A liquid level measuring system for the steam drum of a steam generator employs a plurality of bubblers spaced along the length of the drum to obtain a level profile. The steam pressure to the bubblers is supplied by tubes connected to the steam/water inlet space which has a pressure significantly higher than the steam space in the drum. Horizontal pressure taps on each bubbler transmit the pressure to pressure cells external to the drum where the bubbler pressure is compared to the pressure in the steam space. These reading can then be converted to liquid level readings.
申请公布号
US5279158(A)
申请公布日期
1994.01.18
申请号
US19920998523
申请日期
1992.12.30
申请人
COMBUSTION ENGINEERING, INC.
发明人
TEIGEN, BARD C.;BAILEY, WILLIAM P.;DEMAREY, BRIAN P.;MARONE, III, ANTHONY