KAUER-MAZDA LAVAL JET & ATOMISING DESUPERHEATER

Kauer-Mazda Laval Jet and atomising desuperheater (patent pending) mark a major advancement in the design technology of desuperheaters for power application, process steam in industrial plants etc.

These units create very high velocities and turbulence to help mix the cooling liquid and vapours enabling desuperheating to take place instantaneously. Cooling liquid (water) is passed into a preheating chamber around the steam laval jet and is injected through a series of small jets thereby assisting atomisation by the high pressure steam passing at super critical velocity through the laval jet. This mist-like fluid is further sheared at the exit by the stripping action of the accelerated high pressure steam which also passes through the holes of engineered sizes entering the exit annulus. The resultant pattern of discharge has the water particles surrounded by a sheath of steam so that no contact is made with the steam main walls ensuring maximum operational effectiveness with no pipeline erosion.

Because of Laval jet and atomising effect of the exit annulus these desuperheaters will operate successfully at quite low velocities of line-steam flow, although when the main steam flow fall to a very low point the atomising steam is constantly flowing when the desuperheater is in use, therefore the atomising process is fully effective at all loads down to the lowest rate of injection of cooling water. The characteristic however, is very different from that of the other desuperheaters, nearly all of which depend on turbulent high velocity to make up, by rapid evaporation for an inevitable percentage of large droplets. Thus Kauer-Mazda laval jet and atomising desuperheaters offer a high rangeability even on low steam velocities.

High rangeability with an effective maximum turndown ratio of 33:1

Good reliability since there are no moving parts.

Easy installation and can be mounted in any position.

Narrow configuration and therefore pressure drop in steam main is negligible.

Very high rangeability of 50:1 can also be achieved by providing a modulating steam atomising control valve synchronised with the main valve.

Sizes : 2" to 48"

Rangeability : 50:1

Rating : Upto ANSI 2500#

Atomising Steam Pressure : 1.4 times the steam operating pressure.

Atomising Steam Flow : Cooling water can be fed even lower than the steam operating pressure

* On Request Product Catalogue Available