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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.


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