The primary operate of a desuperheater is to lower the temperature of superheated steam or alternative vapors. This chilling is accomplished as a results of the method vapor being brought into direct contact with another liquid like water. The injected water is then evaporated.
Basic
Desuperheating Theory
Superheated refrigerant is gas that’s at a temperature that’s above the traditional temperature, at the superheated level.
This
extra heat is wasted in atmosphere which:
•
Is
higher than saturation temperature.
•
Contains
more energy.
• contains a larger specific volume than saturated gas.
If
the gas is too hot, it will cause equipment (condenser) to damage and
hence the condenser efficiency is decreased.The overall purpose of a
desuperheater water heater is to provide effective heat transfer
between refrigerant and water. And a extremely effective
desuperheater heater style and application ends up in pricey issues
to be avoided, together with extended closedown and startup times.
Desuperheaters heater comes in a very kind of configurations together
with probe vogue with variable or fastenednozzle, double venture and
venturi. With a style that has finely controlled water spray that
ends up in reducing refrigerant temperature at saturation level.
http://www.maniks.com/desuperheater.html
A desuperheater could be a device that cools superheated gas to a temperature about to its traditional temperature, generally by spraying penalized droplets of water into the flow of supeheated gas.
Superheated gas is gas that’s at a temperature on top of its traditional temperature.
Desuperheater
Applications:
The Desuperheater will be found in several sorts of applications, including:
1.Power
generation
Boilers running at minimum hundreds or with high power, produce variable temperature gas.
Desuperheaters are wont to stabilize superheat over wide selection of flows.
Surface condensers work most effectively once equipped saturated gas.
This reduces the necessity to feature tubes for cooling the superheated gas, and prevents burden caused by thermal growth whenever the new, dry refrigerant gas enters the condenser.
2.Process
controllability
Desuperheaters additionally facilitate to regulate a range of processes.
If
working refrigerant temperature is not constant, a process becomes
uncontrollable, especially when gas flow or pressure changes
continuously. This impacts product quality and cost, force
unscheduled error, creates personnel safety problems, and cost a
greatly in repairs and replacements.
Maniks
has a wide range of desuperheaters as they provide precise
refrigerant temperature control for various applications in boilers,
chemical, oil & gas process plants, etc where the available
refrigerant is at superheated conditions.
These desuperheaters have high performance, custom design, easy to install and with almost zero operating cost.
3.Thinner
pipe and lighter flanges
Cooler gases needs skinny pipe schedules or lighter rim than superheated gas.
Besides from lower prices, this can reduce down- times for piping, controls, valves and other equipments during their initial constructions or shutdown maintenance.
4.Preventing
lubricant degradation
Superheated gas could straightaway degrade bound lubricants, therefore the saturated gas is employed for dearspecial things like compressors and pumps.
