Key Features

Its semi-cylindrical, 3-pass design allows operation at low flue gas temperatures and high efficiency.

According to the fuel to be used in the boiler and the customer's request, it is suitable for use with the firing systems “Automatic Fuel-Feed Stoker“, “Water-Cooled Vibrating Grate” and “Manual Grate”.

With suitable firing systems, many fuel types, such as wood, sawdust, coal, olive pomace, pellets, briquettes, almond shells, walnut shells, hazelnut shells, fruit pomace, fruit-stone shells, poultry manure and its pellets, bamboo, corn cobs, forest residues and others, can be burned efficiently and at low emission values. The fuel flexibility provided by the design of the firing systems keeps operating costs consistently low.

Optional systems that allow unattended operation, such as “Automatic Ash Extraction System“, “Automatic Ignition System“ and  “Automatic Tube Cleaning System“, provide efficient, stable and fully automatic operation.

The flue gas filter selected according to the fuel properties  (“Multicyclone”, “Cyclone”, “Wet Flue Gas Filter”,  “Bag Filter”) keeps emission values below the permitted limits.

Service doors, sufficient in number and of suitable specification and insulated with concrete resistant to high temperature, are provided for maintenance and servicing.

  Combustion and emissions are controlled accurately and safely by a frequency-controlled induced-draft fan that is resistant to high temperature and driven by belt and pulley.

Heating surfaces are net and actual values. The total of the areas inside the boiler where heat transfer takes place is stated as a net and accurate figure.

High-quality safety equipment provides safe and stable operation.

The PLC-controlled touchscreen control panel provides straightforward operation, and remote access from mobile devices makes rapid technical support available from anywhere in the world.

It is supplied with long-lasting insulation that reduces heat losses to a minimum.

The furnace and the reversal chamber are manufactured with support rings and stay rods. The strength of the boiler and its resistance to thermal stresses are thereby increased.

Manufacture is in accordance with EN 12953 and the PED 2014/68 CE Directive.

Weld inspection on our boilers is carried out within the scope set out in EN 12953.

The boiler tubes are expanded into the tube sheet and are then welded. This removes the risk of cracks in the welds caused by thermal stresses in the boiler tubes.

Our welded fabrication is carried out by our certified welders in accordance with approved WPS and WPQR. Automatic submerged arc welding, MIG-MAG and SMAW are applied in manufacture in accordance with the standards.

It is manufactured, in accordance with the requirements of the standards, using high-quality certified boiler plate and seamless cold-drawn steel boiler tube.

System Components

Akkaya high-efficiency, semi-cylindrical, 3-pass hot water / high-temperature hot water boiler

Firing system (automatic fuel-feed stoker, water-cooled vibrating grate, manual grate)

Boiler hot water flow / return valves

Boiler fill and drain valves

Boiler vent valve

Boiler thermometer

PLC-based control panel with touchscreen and remote access

Safety valve

Pressure gauge and 3-way connection valve

Pressure switch

Pressure transmitter

Boiler temperature sensor (operation)

Boiler temperature switch (safety)

Flue gas temperature sensor

Flue gas filter (multicyclone, cyclone, wet flue gas filter, bag filter)

Frequency-controlled induced-draft fan, resistant to high temperature, with belt and pulley drive

Stack

Automatic ash extraction system, automatic ignition system, automatic tube cleaning system, circulation pump set, expansion tank, rapid water heating tank, storage tank, plate heat exchanger (optional)