Solid fuel boiler Kolvi Eurotherm 100 kW

MAIN TECHNICAL PARAMETERS:

DETAILED DIMENSIONS:

BOILER DESIGN:

1. Heat exchanger doors
2. Fire-tube heat exchanger
3. Turbulator
4. Pipes for connecting the PSC
5. Coolant outlet pipe
6. Smoke exhaust
7. Secondary air heating chamber
8. Coolant inlet pipe
9. Secondary air fan
10. Fireclay bricks
11. Primary air fan
12. Air supply regulator
13. Thermal insulation
14. Primary air heating chamber
15. grate bars
16. Ash pan door
17. Firebox door

The KOLVI 100 A solid fuel boiler has a rated thermal output of 100 kW and is designed for heating residential and industrial spaces with corresponding heat losses. The primary fuels for these boilers are wood, peat briquettes, and brown coal. Hard coal is used as an auxiliary fuel, meaning it is not intended for continuous use. The use of anthracite is prohibited. The heating system must have forced circulation of the coolant with an operating pressure of no more than 0.3 MPa (3 bar). This solid fuel boiler is a high-temperature heat source and achieves its rated efficiency at maximum heat load. The optimal supply temperature is 80-85°C, while the minimum return temperature should be no lower than 55-60°C to prevent negative consequences of low-temperature corrosion of the heat exchanger. To achieve this, a recirculation pump with a design flow rate of 2.2 cubic meters per hour must be installed between the supply and return pipes of the boiler.

The boiler's heat exchanger is made of heat-resistant 5mm steel. The firebox is a tubular frame lined with fireclay bricks, which act as a catalyst for high-temperature fuel combustion. The KOLVI 100 A boiler uses a three-pass flue gas circulation system, ensuring high-quality heat removal from the flue gases. The boiler is designed with two fans. The primary air fan supplies air under the grate to support fuel combustion and regulate its intensity. The secondary air fan delivers air to the upper part of the firebox to afterburn the combustible flue gases generated during fuel combustion. Primary and secondary air are supplied to the firebox preheated by the boiler walls. This air supply ensures high-quality fuel combustion. The ratio of primary to secondary air is adjusted during commissioning.

The upper part of the boiler contains a bundle of smoke tubes with metal plates installed within them—turbulators that act as flue gas flow turbulators. These turbulators are designed to extract heat from the flue gases and require periodic cleaning to prevent deterioration of the flue gas flow.

The chimney is a vital component for the proper operation of the boiler. It must be made of stainless steel at least 0.8 mm thick (1.0 mm if coal is frequently used). Insulation of the entire vertical section of the chimney (if located outside the boiler room) or its upper section (if the flue runs indoors) is mandatory. The minimum diameter of the internal section of the flue duct is 280 mm (or 270 x 270 mm). The effective height of the vertical pipe is up to 14 meters.

BOILER DELIVERY KIT:

• Boiler “KOLVI A – 1 piece,
• Remote control – 1 pc,
• Boiler casing (mounted on the boiler) – 1 set,
• Trim fastening kit – 1 set,
• Flanges for the boiler feed and return pipes – 1 set,
• Explosion valve – 1 pc,
• Boiler cleaning brush – 1 pc.,
• Scraper – 1 pc.,
• Fan – 2 pcs,
• Smoke exhauster (upon request) – 1 pc.
• Emergency cooling system (on request) – 1 set,
• Operating documentation – 1 set.

ATTENTION! The boiler specifications for efficiency, power, and burn time per load may vary significantly under actual operating conditions. These parameters are affected by fuel quality, fuel loading quality, external and internal temperature factors, heating system design, firebox and flue clogging, and other factors.