Key Features

HRSG-WT water-tube waste heat steam boilers are designed to produce saturated or superheated steam, using process waste gases, or biogas / syngas obtained from gasifiers and similar equipment, as the heat source in order to meet heat demands for various purposes.

They can be used in industrial heating processes and are also frequently chosen for power generation from waste.

Because the modular construction can be designed to the required capacity and specification, site assembly time is greatly shortened and problems that may arise in shipment are reduced to a minimum.

Refractory material selected for the operating temperatures, together with quality materials and correct application, provides a long service life and a minimum maintenance and repair cost.

The design, with a mud drum and an upper steam drum, allows high-efficiency operation in high-pressure systems.

Separation systems inside the steam drum provide high-quality saturated steam.

Optionally offered “Automatic Ash Extraction System” and  “Automatic Tube Cleaning System“ such as optional systems that allow unattended operation, ensure efficient, stable and fully automatic controlled running.

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

On request, design, manufacture and commissioning can be carried out together with an economizer and a steam superheater unit.

Heating surfaces are net, actual values. The total of the areas inside the boiler where heat transfer takes place is stated clearly and correctly.

High-quality safety equipment provides safe and stable operation.

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

Manufacture in accordance with EN12952 and the PED2014/68 CE directive

Weld inspection on our boilers is carried out within the scope set out in EN 12952.

Boiler tubes are expanded into the drums with a tube expander and 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 certified welders in accordance with approved WPS and WPQR. Automatic submerged arc welding, MIG-MAG and SMAW welding techniques are applied in manufacture in line with the standards.

System Components

Akkaya high-efficiency water-tube waste heat steam boiler

Grundfos feedwater pump group, 1 duty and 1 standby, together with valves, filter and check valves

PLC-based touchscreen control panel with remote access

Insulated feedwater tank, including level controller, water inlet solenoid valve group and level gauge

Ari Armaturen safety valve

Water treatment system (depending on the water quality at the plant: reverse osmosis, Eddy, water softening and chemical dosing systems)

High-quality electronic water level control system (On/Off and modulating)

Pressure gauge and 3-way connection valve

Reflex-glass water level gauge

Pressure switch

Pressure transmitter

Steam temperature sensor

Waste gas inlet and outlet temperature sensor

High-quality steam outlet valve, water inlet valve and check valve

Surface blowdown valve

Bottom blowdown valve and bottom blowdown shut-off valve

Flue

Steam superheater, economizer, recuperator, thermal deaerator, blowdown tank, flash steam recovery system, automatic bottom and surface blowdown systems, automatic ash extraction system, automatic tube cleaning system (Optional)