What Is a Gas Burner?

In the broad sense of the burner concept, domestic water heaters, gas stoves, and even lighters can be considered as a type of burner.

Gas burner

In a broad sense

According to its working principle, a burner can be defined as a device that converts heat energy through the chemical reaction method of burning substances-that is, air and fuel are mixed in a proper ratio through a premixing device to make it fully burn. The burner is a thermal energy device that sends fuel and air into the furnace according to the required concentration, speed, turbulence and mixing method, and enables the fuel to stably catch fire and burn in the furnace. Fuel is mainly fuel oil and gas. Generally used in small and medium fuel or

The gas burner is divided into

Gas burner construction consists of the following 5 systems:

1.Air supply system

When the combustible gas (city gas, natural gas, liquefied petroleum gas) is controlled by the microcomputer control system into the combustion head of the burner according to the program, the primary air is mixed with the combustible gas, ignited and burned, and the secondary air is used to assist combustion to achieve full combustion. Burning condition is determined by

1) High thermal efficiency: It can adapt to pressure fluctuations and adjust the primary air distribution by itself (that is, the gas pressure is large and the primary air is drawn in; the gas pressure is small and the primary air is drawn in).

The main fuels of gas burners are natural gas, liquefied petroleum gas, city gas and other combustible gases. These fuels are flammable and explosive dangerous gases. Safety should be paid great attention during use and storage, otherwise it will happen. Major safety incident.

(I) Startup operation:

1. For newly installed furnaces, carefully check whether the gas meets the requirements before commissioning.

Domestic gas burners are still in the research and exploration stage, mainly because of safety and quality issues, because gas is different from other fuels

Gas burner pressure conversion

1 millibar (mbar) = 105 Pa (Pa)

1 dyne / cm2 (dyn / cm2) = 0.1 Pa (Pa)

1 Torr = 133.322 Pa

1 millimeter of mercury (mmHg) = 133.322 Pa (Pa)

1 millimeter of water (mmH2O) = 9.80665 Pa (Pa)

Engineering atmospheric pressure = 98.0665 kilopascals (kPa)

1 kilopascal (kPa) = 0.145 pound-force per inch 2 (psi) = 0.0102 kilogram-force per centimeter 2 (kgf / cm2) = 0.0098 atmospheres (atm)

1 pound force per inch 2 (psi) = 6.895 kilopascals (kPa) = 0.0703 kilogram-force / cm2 (kg / cm2) = 0.0689 bar (bar) = 0.068 atm

1 physical atmospheric pressure (atm) = 101.325 kilopascals (kPa) = 14.696 pounds per inch 2 (psi) = 1.0333 bar (bar) 1m3 (gaseous) liquefied gas = 2.3kg (liquid) liquefied gas

Gas burner commonly used specific gravity

Natural gas 0.81kg / m3 Liquefied gas 2.08kg / m3 City gas 0.58kg / m3 Air 1.24kg / m3

Common volume: 1 gallon (gal) = 3.785 liters (1)

Conversion of heat transfer coefficient of gas burner

1 kcal / m2 hours (kcal / m2.h) = 1.16279 watts / m2 (w / m2)

1 kcal / (m.h. ° C) [1kcal / (mh ° C)] = 1.16279 watts / (m.Kelvin) [w / (m2.K)]

1 British thermal unit / (ft2.hr. ° F) [Btu / (ft2.h. ° F)] = 5.67826W / (m.Kelvin) [(w / m2.K)]

1 meter 2. hours. / kcal (m2.h. / kcal) = 0.86000 meters 2. Kelvin / W (m2.K / W)

1 kcal (m.h. ° C) [kcal / (mh ° C)] = 1.16279 watts / (m.Kelvin) [W / (mK)]

1 British thermal unit / (ft.h. ° F) [But / (ft.h. ) = 1.7303 watts / (meter. Kelvin) [W / (mK)]

Specific heat conversion of gas burner

1 kcal / (kg. ° C) [kcal / (kg. ° C)] = 1 British thermal unit / (lb. ° F) [Btu / (lb. °)] = 4186.8 Joules / (kg. Kelvin) [J / (Kg.K)]

Thermal power conversion of gas burner

1 kcal = 4186.75 joules (J) = 4.2KJ = 0.004MJ

10,000 kcal = 42MJ 1 kilogram-force meter (kgf.m) = 9.80665 joules (J)

1 British thermal unit (Btu) = 1055.06 Joules (J) 1 kilowatt hour (kW.h) = 3.6 × 106 Joules (J)

1 foot pound force (ft.lbf) = 1.35582 joules (J)

1 meter horsepower hour (hp.h) = 2.64779 × 106 joules (J)

1 British horsepower hour (UKHp.h) = 2.68452 × 106 Joules

1 Joule = 0.10204 kg. Meter = 2.778 × 10-7 kW. Hour = 3.777 × 10-7 Metric horsepower hour = 3.723 × 10-7 Imperial horsepower hour = 2.389 × 10-4 kcal = 9.48 × 10-4 British heat unit