GESTRA KDS 13 KDL 13 Desuperheater for Power Plant & Industrial Steam Systems

Superheated steam at a max. temperature of 400 °C is intro- duced into a controlled system and injected through a nozzle into a water bath where it is cooled down to the temperature of the saturated steam. In passing through the water the super- heat energy of the steam is given up to the cooling water, with some of the cooling water being evaporized and entrained as saturated steam. The steam content after the cooling process is 98 %. The desuperheater features an integral water sepa- rator that prevents the cooling water from being carried along into the steam line during peak loads. The level electrode NRG … or NRGT … detects the cooling water level and an electronic control unit ensures that the evaporized cooling water is replaced by make-up water. The cooling water at the required upstream pressure is fed into the lower part of the desuperheater via a control valve or a solenoid valve. If the temperature of the steam is very high the cooling water must be heated up. The water-bath desuperheater is the only steam cooling system that supplies saturated steam over a control range of 0 – 100 %.