The device of the gas burner, the features of starting and setting the flame + the nuances of disassembly and storage

Vasily Borutsky
Checked by a specialist: Vasily Borutsky
Author: Alexander Mironenko
Last update: December 2019

Each owner of an apartment or a private house where gas equipment for the heating system is installed has encountered problems associated with its setting up or interruptions in work, is not it? To ensure the correct operation of the heating system, it is necessary to know the nuances of the operation of gas appliances and the features of their settings, and all this information is collected in this article.

Also, this publication contains comprehensive information about the types and design of a gas burner. In addition, you will find information on setting the flame in gas burners and the main reasons why your equipment crashes or does not work at all.

The burner device and its variants

All heating boilers differ among themselves in the type of fuel that is used in them. The most affordable, of course, is gas. This type of fuel is the most common and from it the least of the combustion waste. Moreover, the level of efficiency is quite high.

A standard gas burner is the main element in the heating system, which delivers and ignites fuel in a gas boiler. It is about the device and the principle of operation of the burner that we will discuss in detail later.

How is a gas burner arranged and working?

The gas burner is designed to supply a combustible mixture with air, then these components are mixed in the combustion chamber. A further process is to maintain uniform fuel combustion.

The principle of operation of gas burners
The principle of operation of a gas burner is that fuel enters it through an ejector. Then the gas is mixed with air and flows through pipes to special openings. At this stage, the gas is ignited using a spark, which is formed by applying an electrical impulse

The principle of operation is supposedly divided into the following stages:

  • training;
  • compound;
  • combustion.

So, first, all the necessary components of the combustible mixture go through the preparatory process. They gain a certain speed, temperature and the desired direction of motion of the particles. Further, the fuel is combined with air and enters the combustion chamber of the fuel. After this, it ignites.

The main structural elements of the gas burner are considered in the diagram below.

Turbo burner diagram for gas boiler
Turbocharged gas burners differ from injection ones in that air is supplied to the combustion chamber by means of a turbine with a fan. Such devices are easier to regulate, but there is more noise from them. To get rid of unwanted sounds, you can use special devices to absorb sound
Atmospheric burner operation diagram
Injection burners operate without an additional turbine that creates pressure for the flame. After gas is mixed with air, sufficient pressure is created to ignite the flame

Regarding possible burner breakdowns and safety use of gas equipment at the same time, boiler manufacturers did not forget to take this point into account. So, in all modern boilers there are additional structural elements that provide safer operation and automatic stop when the burner breaks down or other emergency situations.

When some items of equipment fail, in the event of a breakdown, the device switches itself off.

Diodes of control and ignition of a flame
In gas burners with electric ignition, there are two special elements that are designed for ignition and flame control. The thermocouple is designed to provide gas supply, if it is faulty, there may be interruptions in the fuel supply or flame attenuation after ignition. The second element is a piezoelectric element, it delivers a spark for ignition. If your boiler does not light up or goes out, the cause may be a malfunction of the thermocouple or piezoelectric element

There are models in which ignition occurs by supplying a spark from an electric piezoelectric element. But in such boilers there are also constituent elements that can ensure the safe use of equipment in case of gas burner breakdown or other malfunctions.

In order to avoid problems during the ignition of the burner, it is important to carry out maintenance in a timely manner. Mandatory inspection and maintenance of the gas boiler must be carried out before the heating season, but at least once a year.

The main types of burners for a gas boiler

For maximum efficiency of the heating system in a private house, a burner is installed in the gas boiler. Such equipment facilitates the regulation of combustion processes in the system. As a result, the fuel burns evenly.

Burners according to the principle of operation are divided into:

  • injection;
  • turbocharged;
  • combined.

Injection (injection) type of gas burner - a component of a gas boiler. It works in such a way that air enters the working area by injection. To evenly support the combustion process, the oxidizing agent enters the tank under a certain pressure and mixes with gaseous fuel.

This type of appliance is designed exclusively for use with natural gas. For another type of gas, for example, liquefied, you must install additional items.

The principle of the gas burner
The gas burner is designed to provide gas supply and its ignition, for further heating of heat exchange equipment, which transfers heat further through the heating system. Gas burners are of several types: injection and turbocharged (they work by a fan)

The second type of burner (turbocharged) works on a different principle. Here, air enters the working area and is mixed with combustible fuel using a fan. Thanks to the control system, the speed of rotation of the blades can be adjusted, thereby regulating the flow of oxidizing agent. Such a device allows high quality increase boiler efficiency.

Despite the noise that comes from the fan, such devices are quite effective, and unwanted sounds can be eliminated by installing additional noise reduction devices. They are more productive. But, as you know, turbines often fail if operating rules are not followed.

But there are burners combined type. They are also designed for boilers and work not only on gas, but also on other types of fuel. For such heating systems, additional structural elements are not needed, since they are installed initially. These types of equipment are much more expensive.

The burners are also divided into industrial and household. There is practically no difference between their principle of operation.

Gas boilers for industrial use
For industrial purposes, boilers of increased power are used. Such equipment is not only much larger than a household appliance, but also fuel consumption will be significantly higher

But, despite the differences in the arrangement of gas burners, all of them are designed for high-quality fuel combustion.

Setting the flame of a gas burner

In order to properly configure the burner of a gas boiler, first of all, it is necessary to follow the instruction manual of the gas appliance. Next, we will talk about how to properly launch and set up a gas burner, and in which cases flame adjustment is necessary. But first things first.

Features of setting the boiler burner

It is recommended to set the burner flame using a gas analyzer. It shows information about amount of air, which is mixed with gas, namely the level of oxygen involved in the process, and the amount of CO.

Typically, the CO should be no more than 50 ppm, the oxygen concentration should be about 3 to 5%. If it will be less, then most likely that the gas will not have time to burn out, as a result of which, a lot of soot will accumulate, the level of CO2 will be higher than normal, and equipment efficiency will decrease.

If the air is more than normal, then the temperature of the household burner of the gas boiler will be too high, and this can lead to tragic consequences, up to the explosion of equipment.

Flame yellow
To ensure maximum equipment efficiency, make sure that the flame of the gas burner is blue. If it is yellow or blue-orange, then it is necessary to carry out adjustment, otherwise the gas will not burn out completely and leave a lot of soot. This in turn will result in damage to the device.

The flame in the gas burner should be blue. If you find that the color has an orange tint, then try to reduce the amount of gas. Reduce until the color turns blue. This color is a sign of optimal operation of the gas appliance. The main thing is not to reduce the fuel supply until the moment when the flame becomes almost colorless. In this case, it will go out very quickly.

Setting the starting gas supply is necessary only during ignition and does not affect the performance of the device. But if necessary, it is possible to adjust it. First you need to reduce the starting fuel supply. Reduce until the burner stops turning on. After that, you can turn the knob until the ignition resumes. For more details on setting the flame of a household gas burner, see the video at the end of this article.

We also recommend that you familiarize yourself with the intricacies gas boiler adjustment.

When is flame adjustment necessary?

The atmospheric-type gas burner, which works without a built-in fan, often fails, turbocharged much less often. During prolonged use of the device, its components may break down or stop working at full capacity.

Floor gas boiler
The gas boiler floor type occupies the useful area of ​​your room, so such heating systems are suitable for private homes.Most often, for such devices, a special room is allocated - a boiler room, in which the boiler is installed. Wall-mounted boilers save space, so they are preferably installed in apartments or houses with a small area

For example, a gas boiler may have reduced performance or a flame reduction may be observed.

And this can happen for the following reasons:

  • High power burner installed for equipment that is designed for less powerful burners. In this case, there is not enough space for the correct combustion of the fuel, the fuel burns unevenly, which leads to the accumulation of carbon deposits on the parts of the equipment.
  • A lot of soot in the chimney can adversely affect the draft of the gas boiler. Because of this, the subsequent withdrawal of combustion products is very weak, little air enters, and the flame turns yellow.
  • The presence of burner defects is one of the reasons for reducing the boiler efficiency, but in this case, setting the flame will not help to fix the problem.
  • Pressure drops during gas supply can also contribute to soot and soot formation, and this will significantly reduce the productivity of the equipment.

All these reasons can affect the temperature of the flame in the gas burner, in which case repairs will be required.

Wall mounted heating boiler
Wall-mounted heating boilers and geysers are installed, most often, in apartment buildings. But they may also need to set the burner flame.

Storage and Disassembly Recommendations

All gas appliances require careful handling and compliance. safety regulations. Therefore, it is not recommended to arbitrarily troubleshoot or disassemble the burner and the gas boiler itself.

In order to avoid emergency situations, as well as to ensure the correct and efficient operation of the device, it is best to contact the gas company with which you contract signed on that. Calling a specialist will be the most reasonable solution, because the price of your life and the life of those around you is much higher than contacting a specialist.

As for the storage of domestic gas burners, everything is simple here. They must be stored in a dry and ventilated area to avoid corrosion of metal parts.

No rust in the boiler
Make sure that there is no moisture inside the heating system of your boiler, if the outlets are rusty, then most likely moisture is present. If you plan to leave a gas boiler for the winter in a garage or other, unheated room, then make sure that these entrances are not closed. What is needed for the natural evaporation of water

To store the boiler itself, you need to make sure that there are no plugs at the outputs for connecting the heating pipes.

You also need to make sure that there is no water inside. If you do not drain the water, then the tank will rust and the boiler will be unusable.

Conclusions and useful video on the topic

We advise you to watch a thematic video on setting a flame in a gas burner. This video talks about the main problems of a gas burner when flame adjustment is required.

Watch the following video clip, which details the main reasons why your gas burner is not working properly, or stopped burning completely. The most common reason is the accumulation of a large amount of soot, which is formed from incomplete combustion of gas:

Try to use your own equipment correctly, if the gas boiler burner starts up with any interruptions, it means that you need to urgently diagnose and find out the cause of the interruptions, otherwise the device can damage your property or life.

It is also worth remembering the storage and transportation of gas burners. To do this, you need to study the operating rules that are written in the documentation. Such documents should be included when purchasing equipment.In any case, if you find out any malfunctions, immediately contact the gas service or reliable specialists who will help you solve the situation.

Want to supplement the above information with useful information on the topic of the article? Or would you like to share your own experience in setting up a household gas burner with other users? Write your comments, share experiences, participate in the discussion - the feedback form is located below.

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