Multi Nozzle Steam Desuperheater

Jet Flow fixed area nozzle desuperheaters are best suited for applications involving minimal load fluctuations. A fixed nozzle desuperheater utilizes high performance fixed geometry nozzles to reduce the steam temperature by directly injecting water inside the superheated steam flow. The water enters the main desuperheater body, passes through the spray nozzles and discharges into the steam line in the form of a fine mist.

Jet Flow venturi desuperheaters consist of a Laval nozzle which utilises a part of the incoming steam flow to create a reduced pressure zone into which spray water is drawn and atomised by steam energy, and then exits in a short expanding throat which allows pressure recovery. The desuperheating performance remains constant at all loads from 100% or less, because of the atomising steam effect of the steam jet. The design is unique such that the spray water can be supplied at the same pressure as that of the steam pressure. High turndowns are possible depending upon installations

A version of single venturi desuperheater has the same operating conditions. can be mounted easily and quickly in the exisiting pipeline. The unit can be clamped between two flanges. Sizes are between 1 1/2” to 30”

Large industrial plants often vent significant quantities of low pressure steam to the atmosphere, wasting energy, water, and watertreatment chemicals. Recovery of the latent heat content of lowpressure steam reduces the boiler load, resulting in energy and fuel cost savings. Lowpressure steam's potential uses include driving evaporation and distillation processes, producing hot water, space heating, producing a vacuum, or chilling water. If the steam pressure is too low for the intended application, a steam jet thermocompressor can boost the pressure and temperature to the required level. Operating Principles - Thermocompressors and ejectors operate on the same thermodynamic and physical principle energy contained in high pressure steam can be transferred to a lower pressure vapor or gas to produce a mixed discharge stream of intermediate pressure.