A desuperheaters is to reduce the temperature of superheated
steam. The simplest construction of this device involves single or multiple spray
nozzles that are inserted into the steam header, allowing water to be sprayed
into the steam flow to reduce its temperature. By regulating the water quantity
through the desuperheater, the degree of heat absortion can be controlled and
desired steam temperature maintained. This mechanically atomized desuperheaters
is used both small and large pipelines.
Other desuperheaters design utilize atomizing steam flow to
produce a fine spray of atomized cooling water into the steam line. The steam
assisted design offer excellent performance at low cost.
For small process lines, a desuperheater which relies on
full circle water injection can maintain final temperature to within 20 degree
F of saturation in pipe sizes down to 1 inch.
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