Pyrolysis boiler of long burning. Self-made pyrolysis boilers of long burning

If you are thinking about what source of heat to use in the winter in a house where there is no access to the gas main, you can pay attention to Russian pyrolysis boilers of long burning. Even if you have access to the gas supply line, the cost of fuel can be quite high. The use of coal or wood is very inconvenient, and electricity is expensive.

When to use a pyrolysis boiler

If you have the opportunity to apply compressed briquettes or wood as fuel, the installation that uses the principle of pyrolysis combustion works as the optimal solution. The efficiency of such a device is quite high, but it may be problematic to purchase an industrial model, as the prices for these units are high today. If you belong to those craftsmen, for whom the manufacture of such a structure is a simple process, then it is worthwhile to understand this question in more detail.

What is pyrolysis burning?

If you are interested in a pyrolysis boiler of prolonged burning, then this can be called very justified. The use of firewood as a fuel is not very convenient, as in normal conditions they are consumed quickly, and a significant part of the heat is not used at the same time. This entails the need to load them into the furnace or boiler constantly. Pyrolysis also implies the creation of such conditions, in which fuel is consumed very slowly, giving off a large amount of heat. A similar effect can be achieved when the process proceeds at a low oxygen level. This allows you to get flammable gas, coke and ash. The gas in the described plant mixes with oxygen and burns at high temperatures, releasing a large amount of heat. Thus, the principle of the boiler includes two stages. First, with a limited supply of air, the wood burns, after which the gas-air mixture reacts. This two-stage principle of operation uses not only a pyrolysis boiler of prolonged combustion, but also wood-burning furnaces, as well as solid-fuel generators.

If there is a pyrolysis boiler, you must correctly adjust its operation, which excludes the possibility of damage to the heating system at home. The high cost of factory units can be called justified, this is due to the fact that they use high-quality material that can undergo high temperatures. We are talking about 8-mm alloy steel, heat-resistant iron and chamotte, but this list can not be called complete. The second factor that affects high cost is a fairly complex management system that ensures the efficiency of the operation. In order to achieve the maximum effect of combustion, it is necessary to take into account the initial moisture content of the wood and the warming-up temperature, since the process of evaporation of water affects the amount of energy released. To control the process, you need to monitor the volume of air that is fed into the device. A long-burning pyrolysis boiler has a fan, due to which air is supplied. For his work, mandatory access to electricity. The presence of this element turns the device into an electrically-dependent unit. When disconnected, an uninterruptible power supply or similar device is used.

Design features of the pyrolysis boiler

If you are going to produce a pyrolysis boiler for prolonged burning, you should familiarize yourself with its features. Among the main elements, we can distinguish a combustion chamber, pipes for tapping and supplying water, a place for installing a fan, air holes, smoke channels, and regulators. For a private house it is recommended to use equipment with a capacity of 40 kW. If this indicator needs to be reduced or increased, then the parameters of the unit should be changed. If it is a small house, the power can vary from 25 to 30 kW. If you produce small units, you can save not only money, but also time.

Preparation before assembly

The best pyrolysis boiler of prolonged burning is one that you make yourself. After all, you will know exactly what features it possesses, and therefore you will be able to cope with the repair if necessary. To produce such a complex device, it will be necessary to prepare a wide range of materials and tools, including an electric drill, electrodes, a grinding wheel whose diameter is 125 millimeters, 4 mm metal sheets, a set of profiled pipes, a fan, and a welding machine. In the latter case, it is best to use a direct current model. You will need a Bulgarian, a cut-off wheel, whose diameter is 230 millimeters, and a set of pipes of different diameters. The master will prepare several steel strips, each of which must have different thickness and width.

Advice of a specialist

Pyrolysis boilers of long burning, the prices for which can be 40,000 rubles, should be made of sufficiently thick steel, for this, 4 mm sheets should be used. But in order to save for the case, you can use 3-millimeter steel.

Technology of work

In a boiler of this type, the loading port should be placed somewhat higher than conventional solid fuel boilers. It is important to install a limiter that allows you to control the amount of air entering the fuel chamber. With the help of it it will be possible to timely report briquettes and firewood. For the manufacture of the limiter, a pipe with a diameter of 70 millimeters can be used, its length must exceed the length of the body of the unit. Self-made pyrolysis boilers of long burning should have a steel disk, which is attached to the bottom of the limiter by welding. This disk will form a gap with the walls of the pipe, it should be 40 millimeters. To mount the stopper in the cover of the device, you need to make a hole. As for the fuel loading hole, it must be rectangular in shape. It is closed with a door that has a special metal lining, it will ensure a secure fit. Below there must be a hole for removing ash. The pipe, through which the coolant will move inside the boiler, must have a bend, which will improve the heat output. The volume of the heat medium that enters the boiler can be regulated by means of a valve, it is installed from the outside.

What to look for

Household pyrolysis boilers of long burning after manufacture can be started, the absence of carbon monoxide in the products of combustion will indicate that the structure is functioning correctly and accurately. In the process of operation, you will need to regularly monitor the condition of the seams, cleaning the structure from accumulated soot and ash. Experts recommend using pyrolysis boilers with air heating systems, replacing them with water heating. Air will be transmitted through the pipes, returning to the floor. This system will not freeze when the temperature drops, which can happen when the owners leave home. In this case, you will need to drain the coolant.

Conclusion

On sale you can meet pyrolysis boilers of long burning "Atmos", their cost can be equal to 65 000 rubles. However, you can manufacture such equipment yourself.