[Descripción General|Especificaciones Detalladas]
Komax desuperheaters are based on a simple but
sophisticated design concept. The cooling water
spray is directed upstream from a patented mixing
module called an "Equalizer". The
steam flow turns the spray water and flows with
it through the mixing module where steam and
water meld together with very high contacting
efficiency. Conventional desuperheaters lack
an effective steam/water mixing system. Cooling
water is directed down stream where steam forces
the water spray to form into a "rope"
having a small surface area and therefore low
contacting efficiency. (Consider what happens
if a glass of water is thrown out of a car window
when the vehicle is moving at 60 mph - a typical
Komax desuperheaters require no long length
of pipe down stream and no "mixing"
elbow prior to the temperature probe as required
by conventional units.
The Ecualizer Module
• No moving parts
• Low pressure drop
• Short installation length
• High range ability
Unlike conventional desuperheaters
Komax units direct the water spray upstream.
The superheated high velocity steam reverses
the water spray flow pattern to send it back
through a six chamber mixing module, the steam
and water converge to form a homogenous mixture
with a uniform temperature profile within 5o
of saturation. Due to the instant mixing of
the water and steam the downstream temperature
probe may be installed only one third the distance
required by standard type desuperheaters.
spray water downstream in the form of tiny droplets
where they are encountered by steam traveling
at 60 miles per hour or more. No matter how
the spray nozzle is directed downstream the
water is coalesced into a rope. To illustrate
the point think what would happen if one were
to throw a glass of water out of a car traveling
at high speed.
Since ordinary desuperheaters
lack any mixing module a long pipe length is
specified downstream to complete the contacting
of water and steam. In addition a "mixing
elbow" is needed prior to the temperature
probe. The pipe and elbow can add to installation
and layout costs.
*Sizes from 2" to 48"
This may be calculated from the expression ?
P = 0.0011M² /D4PA psi
where M = steam flow rate in lb/hr D = pipe
diameter in inches
PA = operating pressure in psia