| 摘要 |
PURPOSE:To enable to obtain a predetermined amount of steam until the time of next usage of steam followed by a usage of steam by a structure wherein a hot water circulating system is formed between an accumulator and a high temperature water generator and yet a control device to control the pressure, temperature, and water level in the accumulator is provided. CONSTITUTION:Water is fed in an accumulator 21, the water level in which is lowered by the usage of a large amount of steam, by sending an ''opening'' signal from a control device 23 to a feed water valve 30 in a feed pipe 26. When the predetermined water level is detected by a water level sensor 27, the valve 30 is closed. Simultaneously with the feeding of water, the fuel valve 29 in a fuel pipe 1 is controlled so as to rasise the pressure and temperature in the accumulator 21 up to set values before next steam supply. When a peak steam usage becomes necessary at a factory 6 using process steam, a pressure valve 28 in open so as to reduce the pressure in the accumulator 21 in order to generate flash steam to supply to the factory 6. Thus, the peak steam usage can be dealt with by annexing a simple and cheap high temperature water generator to the accumulator. |
