The selection of the mouth is a process involving multiple factors, mainly including the following aspects:
1. Understand the characteristics of gas: first, we need to understand the type of gas used and its main components. Different gas gases with different calorific values will lead to different temperatures reached. For example, the calorific value of natural gas, such as natural gas, liquefied petroleum gas and coal gas, varies 1.
2. Determine the size and power of the burner: according to the actual demand, determine how much of the burner is needed. Generally speaking, the larger the size of the burner, the greater the power. This usually involves asking the customer how many kcal or kilowatts of a burner (power unit).
3, consider the air excess coefficient: if the carbon content in the gas is large, but also need to consider the air excess coefficient. The excess air coefficient required for gas and gas combustion can be set differently, which affects the design of the burner.
4. Select the appropriate burner type: select the appropriate burner type according to the use scenario and requirements. For example, in the hot-dip galvanizing production process, the zinc pot heating furnace uses more heating mode is the gas external heating, mainly the gas and natural gas. In this case, you can choose a high-speed burner or a flat flame burner, these two burner mouths have their own characteristics.
5, consider energy saving and environmental protection requirements: in the choice of burner, but also need to consider the requirements of energy saving and environmental protection. For example, the regenerative burner can realize high temperature air and gas preheating, thus improving thermal efficiency and reducing pollutant emissions.
In conclusion, when choosing the burning mouth, we need to consider the above factors comprehensively, and make a choice according to the specific situation. At the same time, it is recommended to communicate with professional burner manufacturers or suppliers to obtain more appropriate selection recommendations.