| 摘要 |
PROBLEM TO BE SOLVED: To effectively exhaust air mixed in a circulating supply tube path where water is circulated. SOLUTION: Water sent in compression by a water circulation pump 23 passes through a circulating supply tube path 21 and returns to the water circulation pump 23. A lower end of each branching tube 29 is communicated and connected to a piping part 21a, 21b, 21c relatively more elevated than other piping parts both in front and in the rear and a vicinity of a suction inlet 21d out of the circulating supply tube path 21, while a top end of each branching tube 29 is connected to a bottom part of each steam separator tank 27, at a lower part of which, water circulating in the circulating supply tube path 21 always exists. |
