By how much above the temperature of saturated steam pressure must the temperature of superheated steam generally be before it becomes necessary to reduce its temperature and pressure?
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I would like to ask everyone: by how much above the temperature of saturated steam does the temperature of superheated steam need to be before it becomes necessary to reduce its temperature and pressure?
It involves both pressure reduction and temperature reduction; it depends on the steam pressure at the previous stage and the steam pressure after pressure reduction
Reduce pressure where pressure needs to be reduced, and lower temperature where temperature reduction is necessary. Check whether the steam temperature after pressure reduction exceeds the requirement downstream
Mainly, it’s our utility steam at 0.8 MPa; the temperature varies sometimes at 240°C and sometimes at 170°C, but the temperatures in the subsequent process stages are all fine. I want to avoid wasting excessive heat by reducing the amount of steam in the device by adding water. Currently, the overheating temperature is unstable. Is there anything wrong with this logic?
At the high-temperature control point for steam coming from upstream, increasing the number of water injection points in the desuperheater can help save steam