Desuperheater Information
Desuperheaters
are basically used to cool steam in power plants. Desuperheating is
the process of regenerating superheated steam to its saturated state
with the help of temperature reduction. There are two basic types of
desuperheaters that is indirect contact and direct contact. Indirect
contact includes desuperheaters such as shell and tube heat
exchangers separate the steam and the medium used to cool it. Direct
contact steam includes desuperheaters do not. A direct contact steam
desuperheater transfers moisture through small holes into the path of
high-velocity steam. After the transformation, the water is atomized
into small drops and quickly evaporated by absorbing the superheat.
The amount of the steam temperature downstream is used to control the
amount of water added during desuperheating.
What
is Desuperheater
A device that cools down the superheated refrigerant (gas that’s at a temperature on top of its saturation temperature) is nothing however a desuperheater.
The temperature of this gas is reduced by spraying droplets of water into the flow of the superheated gas.
Types
of Desuperheater
1) Freon: Maniks desuperheater works on Freon refrigerant gas to extract the superheated refrigerant and use it for other purposes. Therefore this heat if used for boiling water in hotels, restaurants etc users can get free of cost water.
2)
Ammonia: Ammonia is the oldest one of all the refrigerants and it is
still widely used in the refrigeration and air conditioning
applications.
It is additionally the sole refrigerant outside the halocarbons cluster, still being used to a great extent.
http://www.maniks.com/desuperheater.html
Desuperheater
Fundamental
In a usual AC & R system, the refrigerant temperature rises in tune of 80℃ to 120℃ after compression.
The refrigerant is more place to the air/ water cooled condenser to condense close to concerning 40℃.
While the compression of refrigerant within the condenser, the total heat contained in this high Temperature/high pressure gas gets wasted to the atmosphere.
This superheat of the gas that is an element of the entire enthalpy of the gas, has a substantial heat potential provided the same is reclaimed efficiently and is optimized
for
energy saving
Maniks
Desuperheater Water Heater is the ultimate accessory for an AC &
R plant that can be used to remove superheat of the refrigerant.
Desuperheater Installation
The Maniks Desuperheater storage tank is placed before the condenser and also the oil centrifuge.
The ammonia refrigerant travels through the different tubes in the to lower the refrigerant temperature before entering the condenser. The Water heater is manufactured considering the hot water requirements for industrial processes. When the needs of refrigeration and hot water are not simultaneous, a “Recirculation” type system is provided in which hot water is generated, stored & maintained in a separate insulated tank. This stored hot water then can be utilized as and when required for future use.
Desuperheater
Design
Double walled “Tube in Tube “, vented, counter flow heat exchanger.
Vent tube having serrations on inner & outer surfaces to avoid cross contamination of refrigerant and water/ fluid.
Each tube incorporates a tube within that permits water/ fluid to travel in associate degree other way.
shwetas blog 