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Structure analysis and characteristics of gas burner

Writer: admin Time:2021-04-10 00:00 Browse:

  	Structure analysis and characteristics of gas burner
The gas burner has the advantages of high thermal efficiency, good safety performance, strong reliability, high degree of automation, simple operation, convenient maintenance, and low noise. The burner is divided into a. Diffusion burner b. Partial premixed (atmospheric) burner c. Power burner, of which atmospheric combustion is divided into natural ejection type and blast type One. Gas burner characteristics (1) High thermal efficiency: It can adapt to pressure fluctuations and adjust the primary air distribution by itself (that is, the gas pressure is high, and the primary air intake is more; the gas pressure is low, and the primary air intake is less), the combustion is sufficient, and the thermal efficiency is high; (2) High safety: The burner is equipped with a small fire. When the boiler starts, light a small fire first. When the small fire burns normally and steadily, the automatic control system opens the main gas valve so that the fuel can enter the boiler and burn normally without deflagration; (3) Strong fuel adaptability: This kind of burner can be applied to natural gas, liquefied petroleum gas, coal gas, liquefied petroleum gas mixture and other types of gas by replacing a few parts. two. Gas valve group    The boiler can be directly connected to the lowpressure gas pipeline, without the need for a pressure regulating station. The gas valve is a low pressure valve. The gas valve is composed of three parts (1) manual valve (2) 24V electric valve (3) gas pressure regulating valve (the electric valve and pressure regulating valve of some types of boilers are the same valve), and the maximum gas pressure can be set separately according to user requirements Switch, minimum gas pressure switch;    The gas pressure regulating valve requires a front pressure of 511 inches of water column (127 mm of water column and 279.4 mm of water column), and the valve pressure should not be lower than 3.5 inches of water column (88.9 mm of water column). The pressure of the LPG valve requires 11 inches of water column; three. Air cut protection device    The gas pipeline is equipped with a maximum pressure switch and a minimum pressure switch. When the gas is cut off or the gas pressure drops to a certain value, the minimum pressure switch is activated and the system automatically shuts down; when the gas pressure is too high, the maximum pressure switch is activated and the system automatically shuts down.

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