All heat generators work on this principle. They receive the energy they need to work from a variety of solid fuels. It should be noted, that they have some features in the work, which must be taken into account when connecting such boilers to the heating system.
It should be noted, that the binding scheme of the solid fuel boiler includes several elements and devices, which must use, that the operation of the heating system was durable.
Solid fuel boiler wiring diagram, these are the necessary devices and elements, which together form a single heating system. This heating system is included:
- Boiler.
- Circulation pump.
- Expansion tank.
- Emergency power supply system.
- Joint mixing system.
- Buffer capacity.
- Emergency circuit
- Corrosion protection system.
- Pressure gauge, drain cock, special valve. It's all gathered in one block
- Thermovalve.
- Float valve.
Solid fuel boiler. Some features
Solid fuel boiler provides emergency cooling system. This is necessary for that, that in some cases, at disturbance of circulation temperature can increase considerably, and the heating system may be damaged. Therefore, the boiler must be equipped with an emergency cooling circuit, the task of this circuit is to pass cold water through the heat exchanger, when the temperature of the working fluid increases.
Some boilers already have a cooling system installed, which have a serpentine shape, and connecting to the water supply. You can also buy a solid fuel boiler, with special fittings, where are the built-in heat exchangers. exept this, solid fuel boiler has a mixing unit, which is used to lower the temperature.
Solid fuel boiler heating scheme
It should be noted, as for the installation of the heating system, you need to be very responsible, because the correct circulation and distribution of the heat carrier on all system will depend on the correct installation. Only the correct installation of the heating system provide quality safe heating.
Today, several different heating strapping systems can be used successfully. Solid fuel boiler straps for heating differ in the complexity of installation and the principle of operation.
One of the simplest heating schemes, this is the use of the gravitational circuit. This strapping is perfect for heating a small room.
In such a heating system, the movement of the coolant is due to natural processes. This strap has a fairly effective protection against overheating when the main circuit is disconnected when the electricity is turned off.. There is one important feature when connecting. Solid fuel boiler should be slightly below the heating radiators in the circuit.
That there was no water hammer, the scheme of installation for correct heating provides installation of a special expansion tank. The tank is divided into two cavities. There is water in one part of the tank, and in the other part of the tank is air. This is done for that, to avoid damage to the tank and boiler, when there is high pressure in the pipes. It should be noted, that such a heating wiring scheme is very easy to implement.
Solid fuel boilers are a scheme of binding with natural circulation
To maintain the required temperature, you need to add to the return line of the coolant water from the boiler for supply. To do this, a special three-way thermal valve is mounted in the system. This valve is available in three versions.
- For a small boiler
- Has a thermocouple
- The scope of delivery includes a pump.
The valve must be installed on the return line . When the temperature starts to rise, the bypass closes at the inlet and the addition of water stops. It should be noted, that the work of such a system requires connection to the mains, so if the electricity is off, it is necessary to use heat accumulators.
Features of binding and design
It should be noted, that the correct and reliable operation of the boiler is possible only if, if the strapping is done correctly.
Keep in mind when installing, that working system must effectively move the coolant through the pipes.
Tying a solid-burning boiler with a heat accumulator
The solid fuel installation can work for a long time without human intervention, which must constantly load firewood into the furnace. If you don't, that the temperature will drop. If there was a power outage when the furnace was heated, the coolant may boil and the system will be destroyed. To solve this problem, you can install a heat accumulator. The heat accumulator will protect the installation from cracking at temperature differences.
The design of the heat accumulator is as follows. It is an insulated tank for water of a certain capacity, which can be calculated.
The following rule can be followed when calculating the heat accumulator tank. The volume of the tank is taken in proportion 25 – 30 And water 1 Watts of power, based on the heating of a small room.
The scheme of inclusion
The storage device can be included in the system in various ways. The simplest binding of a solid fuel boiler and heat accumulator can work with gravity systems and will work until the power outage. The tank needs to be installed slightly higher than the radiators.
The heating scheme includes the following basic elements.
- Circulation pump.
- Three-way and check valve.
Immediately water passes through the pipeline from the heat source through a three-way valve to the heaters until, until a certain temperature is reached. Example, 60°.
At this temperature, the valve will add cold water to the system. The output temperature should be 60 °.
The non-return valve is connected in parallel to the three-way thermostat. It will turn on when the pump is stopped. The boiler and heat accumulator will work directly.
Number of contours
All of the above wiring diagrams are suitable in this case, if the boiler is single-circuit. In such a boiler, only the supply circuit is used for heating. If a double-circuit boiler is used, then it is tied according to a different scheme. In this case, the second circuit will provide the heating room with warm water. The boiler is equipped with four nozzles, two of which are designed for heating, and two for plumbing.
Emergency circuit
It is desirable to equip the boiler with a special emergency circuit, which is used in that case, if the boiler has failed and the system needs to be repaired. This heating scheme works completely autonomously.
Some important features
There are some important rules to follow when connecting and installing. To ensure long and uninterrupted operation of the system, the inlet temperature should be close 40 or 45 °, and at the outlet of the boiler the temperature should be approximately 55 °. If this condition is not met, condensation will start to collect on the walls of the equipment, which will gradually destroy the metal.
so, was considered, what is the binding of a solid fuel boiler. The above stroke schemes are the most common, related, in the first place, with ease of installation and reliability of work. Proper connection of a specific node in the installation of the system, the connection sequence of the connecting pipes must be done correctly. Boiler must be equipped with an emergency circuit, so that the system can work even during system repairs. Only the correct connection will ensure the efficiency of the entire heating system, space heating will be most efficient.