Steam Atomising Desuperheater

Steam Atomizing Desuperheater maximizes mixing efficiency by spraying water and steam more strongly to venturi nozzles in the center of the body with a high-pressure auxiliary steam supply. A high-pressure auxiliary steam supply is used to atomize the incoming water within the diffuser of the unit. The auxiliary steam pressure needs to be at least 1.5 times the inlet pressure with a minimum pressure of 3 barg.

ADVANTAGES :

1. Good turndown – steam turndown of up to 50:1 is possible, but operation and control is most efficient for a turndown of around 20:1.
2. Very compact – with a short absorption length relative to the other types.
3. Pressure drop is negligible.
4. The cooling water used can be cold, as the atomising steam will preheat it.
5. Low approach to saturation temperature – typically to within 6°C of saturation temperature.
   
   

APPLICATIONS :

1. Suitable for applications where the steam flowrates will vary widely, for example in combined pressure reducing and desuperheating stations.