Immersion
heaters are devices that heat liquid within a bucket or container. Over the
side heaters are designed for a vessel where the conventional installation is
not possible. These heating devices are installed in such a fashion, where the
heated portion is along the container's side or bottom. The fluid is uniformly
heated due to natural circulation. Mostly lead wires, or terminal houses are
used to power the device. The metal used to cast these industrial heating
devices can be; stainless steel, cast iron, copper, titanium, Incoloy, or PFA.
Wide
varieties of immersion heaters
Immersion heaters come in a wide range of shapes, mounting means, and kilowatt ratings to suit various needs and applications. The large variants are manufactured and designed to heat multiple liquids and viscous substances like; acid, water, solvents, oil, and salt. Over the side, heaters are portable and easy to install. And dismount for cleaning of the container. The device takes little space, leaving a large area inside the container.
Flanged immersion
heaters consist of sharp curve tubular elements welded into a flange and
connected with electric wiring boxes for power supply. Flanged heating devices
are energy-efficient, conveniently supervised, and controlled. These devices
are used to heat and transfer liquids and other acidic substances. This heating
equipment can be installed in the pressurized container. Most of the heating
devices are incorporated with thermostatic controls. Since the heater is
submerged in the liquid, the heat generated is directly dispersed in the
liquid, making it very energy efficient.
Resistance
Heating
elements transforms the electrical energy into heat. Devices like toaster,
dryer, electrical heater work on the Joule heating phenomenon. When the
electric current passes through an element, it faces resistance, which
generates heat. There is a coil, ribbon, or strip made of nichrome, an alloy of
nickel (80%), and chromium (20%). When current goes through it, heat is
generated due to resistance, dissipated in every direction.
Conductors are good conductors of electricity;
on the other hand, insulators are bad conductors of current. Both of them offer
resistance when electricity passes through it, but in varying amounts.
Resistors are a crucial part of an electric circuit, which controls the flow of
electricity. A thin wire gets heated when electricity passes through it, making
it glow; the bulb's filament inside the bulb works on this principle. Resistors
in the heating elements generate
ample heat when current flows through it.
Conclusion
Immersion
heaters are the preferred device for heating liquids in a pressurized tank.
These devices come in different shapes and kilowatt ratings suitable for
heating water, oil, solvents, or other fluids. These devices are energy-efficient
as the heat generated is directly infused in the medium; almost no energy is
lost during transmission.
The
heating element in the immersion heaters is replaceable, which can be
substituted fast without draining the tank or container, saving time and resources.
These devices are easy to install, control, monitor, and compact. Regular
maintenance can increase heaters' lifespan, though two factors, watt density
and sheath material, are fundamental to determine heaters' lifetime.
Comments
Post a Comment