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Forced Draft Cooler
Forced Draft Cooler (F D Cooler) is generally used for reduction
of temperature where equipment can not be used with elevated
temperature. When a high temperature gas is passed through a collector
ie., Bag Filter or Electrostatic Precipitator it is very much necessary
to reduce the temperature of the dust where FD cooler is provided
before the collector landen gas. It consits of tube bundle through
which hot gas is passed and ambient air is passed over the tubes and so
that the temperature of gas is reduced to desired value. This Equipment
is generally known as Air To Air FD Cooler.
The Centrifugal fan can also be used for supplying ambient air but, advantage of using of Axial Flow Fan
as cooling air fan is that if, temperature is reduced more than the
desired, few of fans can be stopped and thus the energy is saved.
Characteristics of our Design & Systems
Our system is more effective than that of conventional system: Cooling
tubes are of vertical design and of very large dia. (100 mm) with zero
change of dust accumulations. The velocity through the tubes properly
maintained Utilisation of three modes of heat transfer i.e., radiation,
conduction & convection simultaneously. Multi-Directional flow of
both the hot as well as cooling air is best utilized The tubes are
attached in the tube sheet with provision for thermal expansion, Higher
colling surface provided. Zero explosion probability The Nos. of Fans
can be switched off from PLC which eventually saves power. NO
compressed air is required for Choking of dust and admixing of dilution
air have less possibility.
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