Friends who follow us know that in the last article, we introduced oil burners, and today we will introduce the next product, which is gas burners. The fuels used in this type of products are generally natural gas, liquefied petroleum gas, and city gas. Fuel, let's learn more about it below.
Natural gas: Natural gas refers to the gaseous fuel obtained directly from nature, that is, the gas that is basically only extracted and collected. The main component of natural gas is methane. Liquefied gas: Liquefied gas is a part of hydrocarbons obtained as a by-product in the process of mining and refining petroleum. The main components of liquefied gas are propane, propylene, butane and butene. When the liquefied gas is converted from a gaseous state to a liquid state, its volume is reduced by 250 times. City gas: City gas refers to the gas produced by processing coal as raw material. Its main components are hydrogen and carbon monoxide.
Gas burners can be divided into diffusion type, atmospheric type and flameless type according to the combustion method. Diffusion type: the air required for combustion is not pre-mixed with gas Atmospheric type: part of the air required for combustion is pre-mixed with gas Flameless type: all the air required for combustion is pre-mixed with gas
According to the adjustment method, the gas burner is divided into: two-stage, proportional adjustment type. The secondary burner can only be divided into high fire and small fire; the proportional regulating burner can work at any load point.
The composition of the gas burner: generally consists of the burner shell, program controller, fan, servo motor, gas butterfly valve, combustion head, ionization electrode or ultraviolet electric eye, flame stabilization plate, gas valve group (including ball valve, expansion joint, filter) , pressure regulating valve, solenoid valve, ignition solenoid valve, etc.).
The function of each part of the burner: the burner shell is the carrier of each part, and many parts are fastened on the shell; the program controller is a device used to control the ignition program of the burner; the fan chamber drives the impeller to provide enough air for combustion The device; the servo motor is used to control the opening of the air door baffle and the opening of the gas butterfly valve, that is, to control the ratio of air volume and gas volume to achieve the effect of complete combustion; the ionization electrode and ultraviolet electric eye are used in conjunction with the fuel burner The function of the electric eye is the same, it is used to detect the existence of the flame, if the flame does not exist, it will protect the shutdown; there is a pair of ignition electrodes and gas nozzles on the combustion head, and the high voltage ignition is output through the transformer to ignite the gas ejected from the nozzle; The flame stabilizing disc is a device used to adjust the proportion of direct air and swirl air; the ball valve in the gas valve group is a cut-off device, which is used to supply gas and cut off the gas when not in use; the expansion joint is used to reduce the gas generated when the gas valve group is installed. The filter is to filter the impurities in the gas to avoid damage to the equipment; the regulating valve can be used to adjust the gas pressure from the gas pressure regulating box to make the pressure suitable for the gas consumption of the burner; the ignition solenoid valve is used to release the ignition gas Light the small fire first; the solenoid valve is opened when the ignition gas is ignited to release the main gas to ignite the main flame.
The operating procedure of the burner: After starting up, the burner program controller outputs the signal fan to start running, the servo motor drives the damper to the full load position for pre-purging, after the pre-purging, the servo motor drives the damper back to the ignition position, at this time the ignition transformer The output high-voltage ignition electrode is ignited, and the ignition solenoid valve opens the branch gas at the same time. If the ignition is successful, the main solenoid valve is opened to ignite the flame, and then the program will continue to change the load according to the heat demand. If the ignition is not successful, the ionization electrode or If the electric eye does not detect the flame, the program will terminate, the solenoid valve will be closed, and the gas will not be released into the furnace.
Friends who follow us know that in the last article, we introduced oil burners, and today we will introduce the next product, which is gas burners. The fuels used in this type of products are generally natural gas, liquefied petroleum gas, and city gas. Fuel, let's learn more about it below.
Natural gas: Natural gas refers to the gaseous fuel obtained directly from nature, that is, the gas that is basically only extracted and collected. The main component of natural gas is methane. Liquefied gas: Liquefied gas is a part of hydrocarbons obtained as a by-product in the process of mining and refining petroleum. The main components of liquefied gas are propane, propylene, butane and butene. When the liquefied gas is converted from a gaseous state to a liquid state, its volume is reduced by 250 times. City gas: City gas refers to the gas produced by processing coal as raw material. Its main components are hydrogen and carbon monoxide.
Gas burners can be divided into diffusion type, atmospheric type and flameless type according to the combustion method. Diffusion type: the air required for combustion is not pre-mixed with gas Atmospheric type: part of the air required for combustion is pre-mixed with gas Flameless type: all the air required for combustion is pre-mixed with gas
According to the adjustment method, the gas burner is divided into: two-stage, proportional adjustment type. The secondary burner can only be divided into high fire and small fire; the proportional regulating burner can work at any load point.
The composition of the gas burner: generally consists of the burner shell, program controller, fan, servo motor, gas butterfly valve, combustion head, ionization electrode or ultraviolet electric eye, flame stabilization plate, gas valve group (including ball valve, expansion joint, filter) , pressure regulating valve, solenoid valve, ignition solenoid valve, etc.).
The function of each part of the burner: the burner shell is the carrier of each part, and many parts are fastened on the shell; the program controller is a device used to control the ignition program of the burner; the fan chamber drives the impeller to provide enough air for combustion The device; the servo motor is used to control the opening of the air door baffle and the opening of the gas butterfly valve, that is, to control the ratio of air volume and gas volume to achieve the effect of complete combustion; the ionization electrode and ultraviolet electric eye are used in conjunction with the fuel burner The function of the electric eye is the same, it is used to detect the existence of the flame, if the flame does not exist, it will protect the shutdown; there is a pair of ignition electrodes and gas nozzles on the combustion head, and the high voltage ignition is output through the transformer to ignite the gas ejected from the nozzle; The flame stabilizing disc is a device used to adjust the proportion of direct air and swirl air; the ball valve in the gas valve group is a cut-off device, which is used to supply gas and cut off the gas when not in use; the expansion joint is used to reduce the gas generated when the gas valve group is installed. The filter is to filter the impurities in the gas to avoid damage to the equipment; the regulating valve can be used to adjust the gas pressure from the gas pressure regulating box to make the pressure suitable for the gas consumption of the burner; the ignition solenoid valve is used to release the ignition gas Light the small fire first; the solenoid valve is opened when the ignition gas is ignited to release the main gas to ignite the main flame.
The operating procedure of the burner: After starting up, the burner program controller outputs the signal fan to start running, the servo motor drives the damper to the full load position for pre-purging, after the pre-purging, the servo motor drives the damper back to the ignition position, at this time the ignition transformer The output high-voltage ignition electrode is ignited, and the ignition solenoid valve opens the branch gas at the same time. If the ignition is successful, the main solenoid valve is opened to ignite the flame, and then the program will continue to change the load according to the heat demand. If the ignition is not successful, the ionization electrode or If the electric eye does not detect the flame, the program will terminate, the solenoid valve will be closed, and the gas will not be released into the furnace.