DUCTCOOL™ - GAS COOLING IN DOWNCOMER DUCTS
The gas cooling can also be performed inside the downcomer duct after top cyclones in order to control the gas temperature.
COOLING CONTROL® DUCTCOOL™ systems use double fluid (air water mix) nozzles in the lances. The double fluid spray nozzles are characterized by uniform droplet size and distribution regardless of water flow, generating an ultra-fine mist of single size droplets which greatly enhance evaporation rates, even at maximum water delivery. The reason of short reaction length is purely due to smaller atomized droplets which create more surface contact area between hot gas and water drops resulting in faster heat transfer and quicker cooling.
DUCTCOOL™ new generation high performance lances provide quick and fast full evaporation within short reaction lenghts, narrow diamaters where gas flow is much faster than cooling towers.
DUCTCOOL™ - GAS COOLING IN DOWNCOMER DUCTS
To achieve finer droplets, the compressed air is fed to lances from a seperate air pipe line that pressurised water and compressed air strike each other just before the spray nozzle orifice. The dynamic energy of the compressed air creates a great scissor or hammer impact effect on the water that breaks into very finer pieces, thereby generate ultra fine spray at the exit of the spray nozzle. Fluid : Double Fluid (generally water and air)
Principle : Double Fluid Mix, no return
Pressure : ~7 bar air - ~7 bar water
Droplet size Dmax : ~200 microns
Droplet size D
₃₂
: ~100 microns
Control : PLC
Guarantee : desired temperature reduction with full evaporation
COOLING CONTROL® DUCTCOOL™ evaporative cooling systems provide quick and fast full evaporation within short reaction lenghts. The reason of short reaction length is purely due to smaller atomized droplets which create more surface contact area between hot gas and water drops resulting in faster heat transfer and quicker cooling.
Control System incorporates the latest measurement and control technologies. A microprocessor controller provides unparalleled reliability, ease of use and longer life span. It provides all necessary alarms and interlocks for effective operation of the system and includes advanced control schemes. The standard configuration provides control loops for temperature and atomization (air pressure at the lance), and interlocks the equipment for safety at customer defined set points.
DUCTCOOL™ cooling systems offer you ;
Full evaporation within minimum available straight lenghts
Energy saving in the fan during idle times
Eliminating fan coating problems due to high temperature
DUCTCOOL™ - GAS COOLING IN DOWNCOMER DUCTS
The gas cooling questionnaire is a guide to make fully detailed heat balance calculations. Please contact us to submit you the comprehensive questionnaire.
