| 摘要 |
PROBLEM TO BE SOLVED: To effectively utilize flash steam.SOLUTION: There is provided a steam supply system in which drainage discharged from first steam use equipment is recovered, and flash steam generated by reducing the pressure of the recovered drainage and steam supplied from a steam supply source are supplied to second steam use equipment. The steam supply system has: a steam flow regulating valve for controlling a flow rate of steam, a steam flow rate detecting part; a flash steam flow rate detecting part; a pressure detecting part; and a control part which calculates a flow rate reference control value in such a manner that the total flow rate of the flow rates of the flash steam and the steam, becomes an amount of steam used in the second steam use equipment on the basis of the flow rate of the flash steam and the flow rate of the steam, and which calculates a pressure reference control value in such a manner that a pressure detected by the pressure detecting part becomes a necessary pressure of the second steam use equipment, and which compares the flow rate reference control value with the pressure reference control value, and controls the steam flow regulating valve with the control value at which steam supply amount becomes small. |
