| 摘要 |
PROBLEM TO BE SOLVED: To prevent generation of drainage in steam piping and to stably supply steam by suppressing fluctuation of steam pressure even when the steam is diffused by opening a diffusion valve.SOLUTION: In a saturated steam temperature calculating section 11, the steam pressure Ps detected by a steam pressure detector 9 is input, and the steam pressure Ps is converted into a saturated steam temperature Tso of the steam in the steam piping 3, a steam temperature deviation calculating section 14 determines the steam temperature deviation ΔTs between the saturated steam temperature Tso determined by the saturated steam temperature calculating section 11 and the steam temperature in the steam piping detected by the steam temperature detector 10, and a steam temperature regulator 15 calculates opening command of the diffusion valve 6 so that the steam temperature in the steam piping 3 reaches the saturated steam temperature Tso or higher on the basis of the steam temperature deviation ΔTs determined by the steam temperature deviation calculating section 14, and outputs the opening command to the diffusion valve 6. |
