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Viessman Vitomax 200 - RW/RS
Description
Waste heat boiler for hot water and steam generation
Waste heat boilers utilise the heat from flue
gases generated during combustion processes or the heat in hot exhaust
air from industrial processes to generate hot water or saturated steam.
Economical
and political considerations frequently suggest the installation of
waste heat boilers in combination with gas turbines and CHP stations.
The influence of steadily increasing energy costs has also led to a rise
in the use of waste heat boilers to exploit the waste heat generated in
industrial processes. Viessmann waste heat boilers are available in two
designs:
- Waste heat boilers (AHK) without additional
combustion. For this, exclusively the flue gas/exhaust air volumes are
used to generate hot water or saturated steam.
- Hot water
or steam boilers with waste heat utilisation. These are boilers with
conventional combustion and additional waste heat utilisation.
The
choice of which boiler version to use depends on the specific
conditions of user applications.
Function and layout
The
waste heat boilers from Viessmann are designed according to the flame
tube/smoke tube boiler principle. Here, the hot flue gas is directed
through pipe bundles, where its heat is transferred to the water inside
the boiler body.
By contrast, on flue gas heat exchangers, the
water flows through pipe bundles while the flue gas flows around the
pipes inside the heat exchanger housing. Flue gas heat exchangers are
preferred when using "cooler" flue gases for generating DHW.
Flue
gas collectors are located on the inlet and outlet side of the waste
heat boilers, where cleaning apertures and flue connections are
located. To minimise radiation losses, the waste heat boiler is fitted
with a 120 mm composite thermal insulation with a painted sheet steel
jacket. Like all Vitomax boilers, the waste heat boiler stands on a base
frame that spreads the load across a large area of the floor.