Hülsenbusch Apparatebau

Production of Recuperators

 

With the use of primary energy for heat generation in chemical and/or steelworks-technical processes, up to 65% of the supplied heat go out as waste gas loss in an unused way.

Recuperators use this loss heat for the heating-up of the required combustion air and/or the fuel gas.

Fuel saving up to 35% is possible, depending on the waste gas temperature on leaving the process and on the preheating temperature of the combustion air and/or the fuel gas.

By the saving of fuel, the recuperator contributes at the same time to the environment protection.

Every heat not generated by combustion of primary energy reduces the discharge of pollutants.

The task to the process determines the design of the kiln as well as the waste gas outlet temperature.

There are different models of recuperators adapted to these criteria :


Construction of Recuperators

 

Construction of Recuperators - Air-Recuperator

Air-Recuperator

Tube 44,5 x 2,5

Material    1.4828
                1.4301
                S 235JRG2

Combination-Recuperator







Combination-Recuperator

Tube 44,5 x 2,5

Material 1.4742

Fabrication of tube bundle
of an Air Recuperator






Fabrication of tube bundle
of an Air Recuperator

 




Construction of Recuperators

 

Recuperative Heat Engineering
Types of Construction
Welding of tube bundles

Recuperative Heat Engineering
Types of Construction

Radiation Recuperation

can be used up to 1600° C

Combination Recuperation

can be used up to 1300° C

U-Recuperation

can be used up to 1200° C

Convection Recuperation

can be used up to 1000° C