Classification and technical requirements of gas burners

Classification and technical requirements of gas burners

Classification and technical requirements of gas burners
1、 Classification of gas burners.There are various types of gas burners with different classification methods. Using one classification method is difficult to comprehensively reflect the characteristics of the burner. Here are some commonly used classification methods:1. Classification by combustion mode(1) Diffusion burner: The air required for combustion is not pre mixed with the gas, and the primary air coefficient is 1=0;(2) Atmospheric burner: mix some air with gas in advance, with a primary air coefficient of 1=0.2~0.8;(3) Fully premixed burner: Fully mix all the air and gas required for combustion in advance, with a primary air coefficient of 1=1.05-1.10.2. Classify by air supply method(1) Injecting burner: The air is sprayed out by a gas flow inhaler or the gas is sucked in through an air jet airflow;(2) Natural air supply burner: relies on negative pressure inside the furnace to suck air into the tissue for combustion;(3) Blast burner: By using an air blowing device, air is sent into the furnace to organize combustion.3. Classified by fuel:(1) Pure gas burner: limited to burning gas only(2) Gas fuel combined burner: capable of simultaneously or separately burning gas and fuel(3) Gas coal powder combined burner: can simultaneously or separately burn gas or coal powder4. Classified by special functions(1) Immersion burner(2) High speed burner(3) Pulse burner(4) Low nitrogen burner2、 Technical requirements for gas burners.Different processes require different requirements for gas burners, and the technical requirements for burners in natural gas boilers mainly include the following aspects:1. The burner can reach the rated output at the rated gas pressure;2. The flame shape, size, and furnace structure size should match, and the flame should have good combustion performance;3. It has good regulation characteristics and stable combustion from minimum load to maximum load operation of the boiler, which means there is a large regulation ratio;4. High combustion efficiency and compliant emissions of pollutants after combustion;5. Compact structure, easy installation and operation, flexible adjustment, and low noise.