| 摘要 |
PURPOSE:To eliminate monitoring, decision, and control by an operator, by a method wherein bearing cooling water of a bearing cooling water header located to a cooling water cooler is detected, and according to a detecting signal therefrom, operation of a cooling water booster pump is automatically controlled. CONSTITUTION:In a steam turbine generating installation, water is pumped up through an intake port with the aid of a circulating water pump 2 in a circulating water feed line 1 to feed the water to a condenser, meanwhile, water is fed through a cooling water feed line 5, branched from the line 1, to a cooler 6 for turbine bearing cooling water. Further, during summer season, water is fed in an auxiliary manner to the cooler 6 through driving of a cooling water booster pump 9 within a cooling water intake line 10. In which case, a temperature detector 27 for bearing cooling water is located to a bearing water header 26 situated to the cooler 6. A temperature detecting value of bearing cooling water is compared with a value set by an operating, stopping bearing cooling water temperature setter 24 by a control device 25 to compute the result, and operation of the booster pump 9 is controlled according to the comparison result. |
