| 摘要 |
A steam pressure reducing and conditioning valve comprising a first port 21 for inflowing superheated steam S, a body 23 having a cylindrical diffuser with bottom 22 where small holes 22a are scattered on the side, and a second port 24 for discharging depressurized steam S1 by said diffuser and supplying moisture W from one or more nozzles 25 to the depressurized steam S1, wherein a protrusion 26 projects inward in a vapor discharge path 29 of said body 23 between the diffuser 22 and the moisture supply section 35, and it is so structured that the depressurized steam S1 exiting from sai d small hole 22a is concentrated into the body 23 by this protrusion 26, made to pass inside said protrusion 26, increasing the velocity of steam S1, and the n desuperheated by supplying the steam S1 with subcooled water W.
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