Multi-stage pressure-reducing orifice plate
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There are multiple-stage pressure-reducing orifice plates on the blowdown pipeline of the high-pressure steam drum. The material flowing in is water that is at high temperature and pressure, nearly in a saturated state. After passing through these multiple-stage pressure-reducing orifice plates, the pressure drops from 8.75 MPa to around 1.6 MPa. The technician said that liquid water turns completely into gas after passing through the first stage of the orifice plates, but I think the reason for using multiple-stage orifice plates is to prevent the water from vaporizing, as otherwise it would cause significant erosion to the orifice plates. Also, does the temperature change during the pressure-reduction process? I hope experts can provide an answer. Thank you
Saturated. . . As soon as the pressure is reduced, HF will definitely vaporize: dshf;dhf;adlfhd.aladhf