TECHNICAL FEATURES AND DIMENSIONS
4
2.
TECHNICAL FEATURES AND DIMENSIONS
2.1.
Technical features
The ENERSAVE boiler is made of steel, as a monobloc construction, with horizontal tubed heat
exchanger and pressurized fire chamber. It functions on the principle of reversed flame, with
three passes of burned gases: two passes in the combustion chamber and one pass in the
exhaust tubes. The heat transfer is performed through radiation at the first two passes and
through conduction at the third pass of the tubes.
It is appropriate for light oil combustion and gas combustion. It is available as an independent
boiler or as a unit with an integrated burner. It can also be combined with a hot water boiler
hot water production.
The boiler is designed for maximum working temperature of 90
o
C.
DESCIPTION OF COMPONENTS
Steel boiler body with horizontal tube exchanger
High efficiency stainless steel turbinators
Removable rear smoke box with inspection cleaning door
Front door insulated with refractory material, equipped with a flange for burner mounting
and a flame inspection pipe
Rockwool body insulation of 50 mm thickness
Electrostatically painted external covers
Control panel for electromechanical operation (optional)
2.2.
Function principle
ENP 20
– EN 300 EN 350 – EN 2500
Fig 1.
Boiler function scheme
The function of the boiler is based on the counter-pressure that is created by the returnable
flame in the combustion chamber and by the transmission of heat with radiation. The burned
gases reverse their course at the bottom of the fire chamber, surrounding this way the flame,
which does not get into immediate contact with the surrounding walls.
The burned gases are then guided towards the smoke box through the fire tubes where the
heat transfer is mainly through conductivity, and afterwards evacuated to the chimney. The
smoke box is equipped with an inspection and cleaning door, which also actions as an
explosion relief. The turbinators in the tubes create turbulence to the burned gases, so as to
get into a continuous contact with the walls of the tubes and increase the heat transfer
efficiency.
