Pellet boiler 20 kW FOCUS, power range (5-25 kW) ash removal + pneumatic cleaning of the heat exchanger

Automated pellet boiler 20 kW FOCUS with a built-in industrial pellet burner, a built-in auger ash removal system with a sliding ash collection container, a built-in pneumatic cleaning system for a heat exchanger with a receiver. Automation supports control of heat exchanger pneumatic cleaning cycles.

The FOCUS automated pellet boiler is designed for uncompromising operation as a single unit. The main emphasis in the development and production of the boiler is on the efficiency of heat removal specifically when working with a flare pellet burner on high-ash (agro) pellets - as the basis for the economic feasibility of purchasing and paying for equipment, reducing manual labor to clean the boiler and heat exchanger from ash and plaque, increasing the periods between cleanings, removing ash into a rolling container.

Main advantages :

— Maximum ashpit for operation on high-ash fuel;

— Built-in system for auger ash removal from the boiler ash pan;

— Built-in sliding container for collecting and removing ash;

— Built-in system of auger ash removal from the burner grate space into the boiler ash pan;

— Built-in system for pneumatic cleaning of the heat exchanger (receiver and electric valves);

— The pellet burner is cleaned into the ash pan of the boiler, and through the screw ash removal system into an external container;

— Built-in automatic control of heat exchanger pneumatic cleaning cycles;

— Low-voltage power supply for pneumatic cleaning electrovalves (24 volts DC);

– Hybrid structure of the heat exchange part of the boiler, taking into account the infrared radiation of the burner flame:

— The area for removing the primary thermal stress of the torch (there is no area for the point effect of the torch on the heat exchanger structure) – it simultaneously plays the role of settling heavy particles of the volatile component of the torch, working as an ash filter;

— The convective part of the heat exchanger is maximally developed in combination with a highly efficient horizontal heat exchanger;

- Thoughtful convenient maintenance of the heat exchanger (wide hatch, horizontal cleaning, ash chamber in front of the chimney);

— The ash pan of the high-capacity boiler is designed to work in industrial conditions. With the right selection of equipment, even on high-ash pellets;

— Location of the pellet burner on the boiler door in a suspended version, reinforced door hinges;

– The boiler is additionally (at the request of the customer) equipped with a ready-made piping of a three-way or four-way valve with IMP Pumps pumps. Which, in combination with control automation, provides protection against cold return from the heating system and the absence of condensation in the boiler. This, in turn, on the 30% increases the efficiency in comparison with a similar boiler without return protection and on a cold system (when the return is below 40 * C). There is no need to select mixing equipment and coordinate with boiler automation;

- For ease and speed of installation - the boiler is equipped with a Victaulic quick connection system (Victaulic connections, they are Gruvlok). For operational work, guaranteed high-quality connection (does not require symmetrical tightening as a flange connection, no welding work is required at the installation site), allows for slight distortions during installation (up to 2-3 *), which gives freedom to the installer in case of deviations of the room from the design dimensions. Complete with a copper there are couplings and branches under welding or carving connection (it is specified at the order).

- The boiler and the connection system are designed for assembling a boiler house according to the cascade type, when all the power is not initially required (for example, during the construction of a large facility), and when there is a need to increase the design capacity - several boilers with a total capacity of up to 2.2-2.5 MW are painlessly added. At the same time, the presence of three-way valves on each boiler and a hydraulic switch in the heating system disconnects the idle boiler from the flow without restricting the flow of the system and without cooling the coolant through the heat exchanger of the idle boiler.

— Boiler material – structural steel 09G2S. The thickness of the walls of the heat exchange part (furnace and primary heat exchanger, shells) is 6 mm. The thickness of the outer shell of the water jacket of the boiler is 4 mm.

- Thermal insulation - basalt mineral wool 50mm thick.

– Boiler casing – polished stainless steel AISI201

— Adjustable hinges and locks for fine-tuning the tight fit of the ash pit door and heat exchanger to the opening.

- Possibility to change the opening side of the doors.

— Pneumatic cleaning system pre-installed on the heat exchanger door;

— Removable sliding container for the boiler auger ash removal system.

— Automatic cleaning of the burner into the general ash removal system of the boiler;

- Hybrid plate and fire tube heat exchanger. Where the lamellar stroke relieves the stress of the torch and precipitates the bulk of heavy particles, which is especially important when working with high-ash or agro pellets.

- The most developed convective fire-tube part of the heat exchanger really corresponds to heat exchange.

— Large door for easy access and complete cleaning of the heat exchanger surfaces.

 

 Pellet burner TM "FOCUS"installed in this kit will work both on clean wood pellets and on agro-pellets with ash content up to 10% (pellets from seeds, corn, buckwheat, rice, furniture, straw).

The built-in pellet burner TM "FOCUS", included in this set of equipment, will work both on clean wood pellets and on agricultural pellets with an ash content of up to 10%. In this case, fuel pellets from sunflower waste, corn, buckwheat, rice, furniture waste and straw can be used without restrictions.

Pellet boiler FOCUS 20 is the optimal solution for households and small shops, as well as remote sites.

Advantages of the built-in burner:

• automatic ignition (installed Japanese ceramic candles for contactless air ignition of pellets);
• movable mono-grate. It is used for tedding burning fuel, followed by pushing the high-ash residue into the boiler ash pan;
• auger for supplying fuel to the combustion chamber of the burner;
• built-in temperature sensor of the burner auger (safety, automation will turn off the fuel supply with the transmission of an alarm signal);
• built-in infrared flame sensor for fixing and monitoring the level of flame radiation (safety, automation records the presence and absence of a flame, using appropriate behavioral scenarios);
• selected proportions of primary and secondary air for the correct organization of fuel combustion;
• highly reliable drive of the Swiss company "Belimo" with anti-jamming protection - moves the grate;
• The combustion chamber nozzle with air purging (for models 120-150 kW) performs the functions of cooling the nozzle and simultaneously heating the secondary air. Increases the efficiency of heat production by the burner due to the afterburning of gases at the exit of the nozzle;
• on models from 17 kW to 150 kW the nozzle is made of chromium alloy.

All models of flare burners have a "break" in the fuel supply line, ensuring the safe operation of the equipment. Using the controller, you can easily customize the operation of the equipment.

Functions and equipment

Functionality of the pellet boiler 20 kW FOCUS (5-25 kW):

• power regulation within 5 kW - 25 kW;
• 5 basic security levels;
• automatic operation: ignition, extinguishing, auto-cleaning in the operating mode, cleaning from the main ash when extinguishing;
• automatic screw ash removal into an external container;
• automatic pneumatic cleaning of the boiler heat exchanger;
• automatic cleaning of the burner into the general ash removal system of the boiler;
• ceramic spark plug, duplication of spark plugs;
• low power consumption (800 W);
• PID-regulation (the possibility of precise control of the burner using an analog control signal, including within the framework of "smart home" technology);
• movable, removable mono-grid made of chromium alloy for mechanical cleaning of the burner;
• pump control (hot water treatment and heating);
• work with room thermostat and internet module;
• work with weather regulation;
• built-in ash filter.

The pellet boiler complies with GOST32452-2013 (EN 15270:2007). A 12 month warranty is provided.

Contents of delivery:

• Pellet boiler 20 kW complete with burner, auger ash removal system, pneumatic ash removal system;
• sliding ash collection container - kit;
• EcoNet internet module;
• weather sensor;
• smoke gas temperature sensor;
• boiler return temperature sensor;
• feeding screw conveyor - 2 m;
• corrugated PVC pipe - 1 m;
• pellet burner controller;
• documentation.

 

Equipment for pellet boiler rooms

Devices and modules that increase the level of autonomy of the heating system:

• piping kits with a three-way or four-way valve integrated into the boiler control system;
• bins for storage and feeding of pellets;
• room touch EcoSter regulator;
• additional temperature sensors.

Consult our specialists on the features of the deployment of heating circuits and connections.

Dimensions (edit)

Listed in each position separately.

Chimney diameter

180 mm

Requirements for the boiler room

When designing, you must adhere to the requirements:

• MDNAOP 0.001.26-96;
• DBN B.2.5-XX: 20XX;
• SNiP 2.04.05-91 "Heating, ventilation and air conditioning";
• SNiP II-35-76 "Boiler plants".

 

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