| 摘要 |
PROBLEM TO BE SOLVED: To provide a diffusion valve control device capable of preventing generation of drainage in steam piping, suppressing fluctuation of a steam pressure even when steam is diffused by opening the diffusion valve, and stably supplying steam.SOLUTION: In a saturated steam temperature calculating section 11, a 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 steam temperature deviation ΔTs between a steam management temperature Tsr obtained by adding a margin value α to the saturated steam temperature Tso determined by the saturated steam temperature calculating section 11, and the steam temperature Ts in the steam piping detected by a steam temperature detector 10, and a steam temperature regulator 15 calculates an opening command of the diffusion valve 6 on the basis of the steam temperature deviation ΔTs determined by the steam temperature deviation calculating section 14 so that the steam temperature in the steam piping 3 reaches the saturated steam temperature Tso or higher, and outputs the same to the diffusion valve 6. |
