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Heat Exchangers for Industrial Applications
A Heat Exchanger is a device specifically designed for the efficient transfer of heat from one stream of steam or fluid to another steam of steam or fluid over a solid surface. This transfer of heat can either take the form of absorption or dissipation of heat. Heat exchangers can be found in everyday equipment from boilers, furnaces, refrigerators to air conditioning systems. Two of the most popular types of heat exchangers are the shell and tube and the plate heat exchanger.
Shell
and Tube Heat Exchangers
Consisting of stainless steel tubes inside a carbon steel shell, shell
and tube heat exchangers are ideal for applications with extremely high
flow rates, temperatures and pressure loads. They are also highly recommended
for handling contaminated liquids with particles that would block the
channels of a plate heat exchanger. Variations of the shell and tube include
U-tube, straight, shell and coil, spiral tube heat exchangers, and finned
tube designs.
Plate Heat Exchangers
Plate heat exchangers are either gasketed or gasket free. The plate heat
exchanger is designed for applications where space is limited, temperature
and pressure demands are not that high and there is very little particle
debris or build-up in the fluid. The classical form of the plate heat
exchanger is the gasketed type which consists of a series of channeled
plates that are mounted on a frame and clamped together. There are several
variations of the gasket free plate heat exchanger including the brazed,
welded, (or semi-welded) and the diffusion bonded heat exchanger which
are differentiated from each other in terms of how the plates are fastened
together, i.e., with welds, by vacuum brazing and a unique form of stainless
steel brazing called diffusion bonding.
Valutech
Inc is a supplier of heat exchangers and other related products for
the HVAC and process industries. We provide low maintenance, durable and
compact heat exchangers with unique designs and high heat transfer rates.
Not only will our heat exchangers work for your industrial or residential
environment, however severe the conditions, they will require very little
maintenance to continue doing so - saving you considerable time and money.
Some Popular Applications
Heat exchangers are a lifesaver when it comes to the efficient use of
energy, i.e., heat. They allow you to reduce the loss of heat in a process
and to recover that lost heat for later use. A classic example is the
sanitary heat exchanger for drainwater heat recovery systems in your house.
These heat exchangers fit into your existing waste drain lines from the
shower, bathtub, laundry washing machine and dishwasher, to capture heat
from the drainwater to preheat cold water going to other showers or a
water heater. These systems reduce the energy needed to heat water in
your house and reduce your energy bill.
District Heating
Another classic example of how heat exchangers can recover lost heat for
later use is a district heating system. In a typical nuclear power plant,
for instance, only 40 percent of the energy it burns to produce electricity
is used while the rest of the energy is lost. By installing a system of
shell and coil heat exchangers, a district heating system can recover
most of this wasted heat and use it to heat buildings in the surrounding
area. District heating is not more environmentally sound, it means lower
operation and maintenance costs, more reliability, higher thermal comfort,
and more design flexibility.
Pool Heaters
Heating your swimming pool is always a tough balancing act of wanting
to enjoy your pool and saving money at the same time. There is the one-time
cost of installing the pool heater, the monthly fuel cost, and the cost
of maintaining the pool. Your operating costs can be minimized by installing
a properly sized pool heat exchanger, using a good quality pool cover,
keeping your filter clean and your heating and filtering system well maintained.
Pool heat exchangers provide a simple way for you to heat your swimming
pool water efficiently using your own central heating boiler or solar
panels. These pool heaters are all resistant to chlorine water, are inherently
self cleaning equipment and can be installed vertically where space is
limited.
Snow
and Ice Melting Systems
Snow and ice melting systems are becoming very popular in the northern
states and Canada. If you are tired of hurting your back when you have
to shovel your driveway or hiring an expensive snow removal company to
remove snow from your parking lot, snow and ice melting systems are just
the solution for you. With the right sized heat exchanger, these heating
systems can cost you a fraction of what it costs you to remove snow and
ice, not to mention all the costs associated with falling down on the
hard ice or having to remove it yourself with a shovel.
Radiant Floor Heating
Radiant floor heating systems are an extremely attractive idea especially
when you live in a cold house and you suffer from cold feet and hands.
A heat exchanger is brand new way of supplying warm water to your hydronic
radiant floor heating system. With the cost of electricity and natural
gas constantly on the rise, these heat exchangers are an energy saving
wonder. Unlike a central forced heating system, which only warms the surrounding
room air, a radiant floor heating system offers true thermal comfort by
warming the things in a room, i.e., the interior surfaces of floors, walls,
ceilings, windows and doors.
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