With the rapid development of China's economy, the traditional coal-fired technology makes a large number of carbon dioxide and sulfur dioxide emissions into the air, resulting in air and water pollution. In recent years, environmental protection organizations all over the country attach great importance to environmental governance, and have achieved remarkable results in rectifying enterprises whose emissions do not meet the standards within a time limit.
With the popularization and application of natural gas, Shandong gas-fired boilers have gradually come into people's daily life, replacing coal-fired boilers as important heating tools for families and factories. Compared with coal, natural gas has the advantages of cleanliness, non-pollution and high calorific value. With the development of natural gas resources, energy consumption in China has gradually changed from coal-fired and oil-fired to gas-fired, and a large number of coal-fired boilers have gradually been replaced by gas-fired boilers. In the future, the application prospects of Shandong gas-fired boilers will be broader.
Combustion modes and characteristics of gas fired boilers
The characteristics of gas combustion are clean, easy to transport, ash-free, easy to adjust combustion, good operation and easy to adjust calorific value. Gas combustion modes are generally divided into diffusion combustion, atmospheric combustion and flameless combustion according to the supply mode and quantity. Diffusion combustion refers to the combustion of gas without premixing air before combustion, that is, no primary air supply. Its combustion characteristics are that the mixing of gas and air is realized by the diffusion between gas and air. This kind of combustion has the advantages of low combustion speed, low flame thermal intensity and easy to produce chemical incomplete combustion. It has no tempering phenomenon, high deflagration rate and stable combustion.
Atmospheric combustion, also known as Bensheng combustion, is pre-mixed with a part of air before combustion. The supply of primary air is usually inhaled by ejection. Its combustion flame consists of internal and external parts. The internal flame is blue-blue, clear outline, short and powerful; the external flame is light blue, the combustion temperature increases, which reduces incomplete combustion, but tempering or detachment easily occurs. Flameless combustion is that before the combustion of gas, the gas is completely mixed with the required air, and there is a high temperature ignition source. The combustion process is completed in an instant, the flame is very short, like no flame. Its combustion characteristics are complete combustion, high combustion temperature, high thermal efficiency, and infrared radiation can be generated on the surface of the red-hot burning plate. The special requirements of gas-fired boilers for burners are high burning degree, high regulating performance and wide capacity range. At present, gas burners include direct-fired induced-air diffusive burner, blast diffusive burner, ejector burner, etc.
In summary, the above is provided by Shandong Gas Boiler Organization. To learn more about gas boilers, please pay attention to our website: http://www.jnlzsb.com. Thank you for your support!