Desuperheater

This ejector with internal circulation, either used as a pressure reducer - desuperheater or as generator of saturated or wet steam has - in comparison to standard desuperheaters found on the market - the following advantages:

1) It creates the saturated steam without any overheating : ofcourse you can also create superheated steam or wet steam.It is the internal recirculation which gives these possibibilities.
2) It has a high quality/precision of the pressure and temperature control within the load range of 2-100 % under the condition that the water injection valve isselected correctly.
3) Very good spraying action of the water injected (demineralized water!)





















Maximum load

The primary steam passes in the nozzle with a velocity of 665 m/s. Then it expands in the diffuser leading to a velocity of approx. 300 m/s for the mixing of steam with the water droplets.

The cooling water is pulverized in the nozzle with drops of a diameter of 0.75 mm. The steam reduces these drops to 0.04 mm. This means a drop of 0.75 mm is pulverized into 6.592 droplets of 0.04 mm. By that the exchanging surface for evaporation is increased by a factor of 19.

Minimum load

The procedure is the similar. The steam passes with a velocity of 665 m/s through the nearly closed nozzle. For this load, the nozzle pulverizes the water into drops of 1.3 mm and the steam makes 206 droplets of 0.22 mm out of the droplets of 1.3 mm, thus increasing an exchanging surface which grants a good evaporation also for such  a low load.

                   
Textile steamer with steam conditioner Baelz 591 to create saturated steam of approx. 102/103 °C.
Chemical dosage reduced by up to 20%.