| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a deaerator that can suppress decompression boiling accompanied by a local temperature change in a body barrel. <P>SOLUTION: The deaerator 1 includes: the body barrel 2 which deaerates condensate 21 and stores water as deaerated water 23 to form a liquid phase part and incorporates a gas 24 in the deaerator as a gas phase part at an upper part of the liquid phase part; a condensate pipe 3 for supplying the condensate 21 to the body barrel; a turbine extraction pipe 4 for supplying turbine extraction steam 22 to the inside of the body barrel; a downcomer 5 for discharging the deaerated water 23; an auxiliary steam supply device for supplying an auxiliary steam 25; a thermometer, a plurality of which are mounted in the liquid phase part in a longitudinal direction of the body barrel 2, which measures a temperature of the deaerated water 23 as a measured value of a deaerated water temperature; a pressure gauge 8 for measuring a measured value 32 of the pressure in the deaerator of the gas phase part; and a calculation part 11 for supplying the auxiliary steam 25 to the auxiliary steam supply device so that a saturated temperature of the measured value 32 of the pressure in the deaerator exceeds the measured value showing at least the highest temperature among a plurality of the measured value 31 of the deaerated water temperature. <P>COPYRIGHT: (C)2012,JPO&INPIT |
