Steam boilers are now essential in many industries, and industrial boilers are divided into four cat
Steam boilers are now essential in many industries, and industrial boilers are divided into four categories; Steam boiler, hot water boiler, dual-purpose steam water boiler, organic heat carrier thermal oil furnace. Steam boilers are divided into coal-fired steam boilers, oil-fired steam boilers, electric heating steam boilers, and others according to the different combustion media; Hot water boilers are divided into coal-fired hot water boilers, oil fired hot water boilers, electric hot water boilers, and others according to the combustion medium.
As the core component of a boiler, the burner plays an important role. So, how do we choose the appropriate burner when designing a steam boiler?
Boilers should generally be installed in separately constructed boiler rooms, or when connected to or installed inside other buildings, they should comply with the relevant provisions of the current Steam Boiler Safety Technical Supervision Regulations, Hot Water Boiler Safety Technical Supervision Regulations, and Building Design Fire Protection Code.
We mainly consider the following points when adapting boiler burners:
Heat generation: After selecting according to the heating value of the electricity user, the user can choose the appropriate equipment for the fuel burner, and you can choose the appropriate burner based on the auxiliary power supply equipment.
The temperature inside the furnace, which is a core indicator, must be specified by the boiler burner manufacturer as to which type of equipment their equipment belongs to, whether the pressure inside the furnace is positive or negative, the amount of pressure, and the temperature reached. Due to the type of temperature inside the furnace, the structure of the burner is different, and different materials are selected; The positive selection of the burner of the furnace is aimed at overcoming the furnace pressure of the low-pressure burner for a high pressure. When selecting pressure gas as fuel for gas calorific value, due to the different calorific values and pressures of various gases, when selecting a burner manufacturer for fuel type burners, it is necessary to indicate the number, calorific value, and pressure of suitable boiler burners to avoid the risk caused by incorrect selection. The equipment required for temperature accuracy in the adjustment mode can be selected for some fire control (only one burner operating mode operating point) in the second stage fire control (the burner operating mode is small fire fire two working points, with sudden changes in the two working switching points), line by line (small mode burner fire two working points, with smooth and gradual switching between the two working points), Adjust the burner (any point within the working range of the burner combustion mode can be left to balance the heating furnace's demand from the system output).
The emission indicators of boilers, especially the concentration of NOx emissions, are closely related to coal type, boiler selection, and burner type. For in-service boilers, the furnace type has been determined. However, in recent years, coal-fired power plants have mixed and inferior coal quality to increase profitability and cope with the ever-changing market for electric coal. Therefore, before the transformation of low nitrogen combustion technology, Firstly, it is necessary to fully evaluate the existing main coal types and commonly used coal types of the boiler. In the feasibility study of the transformation, there are many cases where the NOx reduction effect after the transformation is not significant due to improper selection of coal types, resulting in new problems. Secondly, a comprehensive test should be conducted on the operating boiler to fully evaluate the combustion performance, steam parameters, heating surface wall temperature, coking and slagging, operation adjustment, thermal automation, and other issues that exist during the operation of the boiler, Propose expected goals for scientific and reasonable transformation, balance boiler economic and environmental indicators, and effectively improve existing problems through transformation.
If heavy fuel atomization is chosen, the heavy oil burner can be selected based on the fuel oil of the mechanical atomization boiler burner, the F area of the medium atomizer burner, different geographical environments, and different environments with different viscosity requirements for the burner. After understanding this knowledge, I believe that steam boiler design is easy and the application of boiler burners is also better.
Under the guidance of the national strategy of peaking carbon emissions, natural gas boilers are now widely used and have become a key focus of energy-saving and environmental protection renovation in the thermal industry. Excluding the shell of the boiler burner, Europa has mastered the core technology of ultra-low nitrogen, and the boiler burner is definitely the first choice for your boiler renovation!