 Steam
Jet Heaters utilize the principal to mix steam with a cold liquid
uniformly. Operation is efficient because the heat in the steam
is absorbed by the liquid being heated to approximately 10% of
liquid saturation temperature. The jet action produces agitation
and circulation, eliminating the need for other equipment to
accomplish these functions in most applications.
Basically, all of these Jet Heaters have a nozzle or orifice arrangement, a diffuser, and body
(which in some cases consists only of bracing to hold nozzle
and diffuser in position). In operation, jet heaters use steam
(or steam and water under pressure) as the motive force to
entrain, mix with, heat, and pump (or circulate) the suction
liquid.
The liquid under pressure attains a
high velocity passing through the nozzle. Steam enters through
a series of nozzles in the combining tube and an intimate mixing
of the liquid and steam occurs in the throat region. The liquid
absorbs all of the heat of the steam. Under normal conditions
no loss in water pressure occurs. In certain cases, this water
can be operated against back pressures higher than either the
supply water pressure or steam pressure. |
