The operation process of a burner is not very familiar to most people. Today, the editor from Yuanda Thermal Energy, a burner manufacturer, will introduce you to some of the elements of combustion. First, let's understand the three elements of combustion: fuel, ignition source, and oxygen for combustion. There are also other elements, such as the following:
Excess air coefficient: The ratio of the actual amount of air used in combustion to the theoretical amount of air required for combustion. NOx: A general term for nitrogen oxides (KIO, HOC2) produced during combustion. Natural draft diffusion combustion: A combustion method in which the air required for combustion is not supplied by a fan or other forced air supply method, but rather by natural ventilation or the pressure of the fuel itself to obtain oxygen for combustion.
Forced draft combustion: A combustion method in which a fan or compressor provides forced air to supply oxygen for combustion. Most industrial burners are of this type.
Premixed combustion (ejection type): Fuel and air are pre-mixed in proportion before being ejected for combustion.
FSG: Flame Safeguard System. The FSG generally consists of the following parts:
Power supply: Used to power the system and activate relays. Flame detection part: Continuously monitors the flame status. Ignition output: Supplies power to the ignition transformer to generate the electric spark required for ignition. It automatically shuts off after normal ignition is confirmed to protect the ignition transformer. Valve control output: Opens the fuel solenoid valve for ignition and combustion during or shortly after the ignition output. Alarm output: In case of ignition failure or flameout during normal combustion, it promptly cuts off the fuel valve and outputs an alarm signal. Others: Depending on the needs, different FSGs are equipped with many different auxiliary devices, such as a burner fan pressure switch input.
Ionization flame detection: Utilizes the principle that high-temperature flue gas has a unidirectional ionization effect. An AC voltage is applied to the flame, and the presence or absence of current is detected to confirm the flame status.
Photoelectric flame detection: Uses the light from the flame itself to detect the flame status through a photoelectric sensor. Pre-ignition purging: Burners are generally equipped with automatic ignition control devices. To ensure safe initial ignition, before formal ignition, fresh air can be introduced into the furnace through the combustion air fan to dilute and purge combustible gases in the furnace. The purging time depends on the size of the furnace and the burner's combustion rate. Generally, the purging time should be sufficient to achieve four air changes in the furnace.
The operation process of a burner is not very familiar to most people. Today, the editor from Yuanda Thermal Energy, a burner manufacturer, will introduce you to some of the elements of combustion. First, let's understand the three elements of combustion: fuel, ignition source, and oxygen for combustion. There are also other elements, such as the following:
Excess air coefficient: The ratio of the actual amount of air used in combustion to the theoretical amount of air required for combustion. NOx: A general term for nitrogen oxides (KIO, HOC2) produced during combustion. Natural draft diffusion combustion: A combustion method in which the air required for combustion is not supplied by a fan or other forced air supply method, but rather by natural ventilation or the pressure of the fuel itself to obtain oxygen for combustion.
Forced draft combustion: A combustion method in which a fan or compressor provides forced air to supply oxygen for combustion. Most industrial burners are of this type.
Premixed combustion (ejection type): Fuel and air are pre-mixed in proportion before being ejected for combustion.
FSG: Flame Safeguard System. The FSG generally consists of the following parts:
Power supply: Used to power the system and activate relays. Flame detection part: Continuously monitors the flame status. Ignition output: Supplies power to the ignition transformer to generate the electric spark required for ignition. It automatically shuts off after normal ignition is confirmed to protect the ignition transformer. Valve control output: Opens the fuel solenoid valve for ignition and combustion during or shortly after the ignition output. Alarm output: In case of ignition failure or flameout during normal combustion, it promptly cuts off the fuel valve and outputs an alarm signal. Others: Depending on the needs, different FSGs are equipped with many different auxiliary devices, such as a burner fan pressure switch input.
Ionization flame detection: Utilizes the principle that high-temperature flue gas has a unidirectional ionization effect. An AC voltage is applied to the flame, and the presence or absence of current is detected to confirm the flame status.
Photoelectric flame detection: Uses the light from the flame itself to detect the flame status through a photoelectric sensor. Pre-ignition purging: Burners are generally equipped with automatic ignition control devices. To ensure safe initial ignition, before formal ignition, fresh air can be introduced into the furnace through the combustion air fan to dilute and purge combustible gases in the furnace. The purging time depends on the size of the furnace and the burner's combustion rate. Generally, the purging time should be sufficient to achieve four air changes in the furnace.