Classification of air duct heaters and their major advantages and applications
High-efficiency heat exchangers have achieved obvious energy-saving effects in central heating systems. According to the characteristics of this type of equipment, the author believes that this type of heat exchangers are likely to play an important role in the utilization of waste heat of power station boilers. First, the sealing surface material and its treatment status have a great influence on the valve leakage. Since the size of the remaining gap between the sealing surfaces depends on the microscopic unevenness of the sealing surface, if a steel material sealing ring is used to cause the same degree of sealing, there must be a large specific pressure, which must surpass the value of using brass The specific pressure value of the manufactured sealing ring. Boiler, as one of the three main engines of electric power generation enterprises, has completed the conversion process of fossil fuel chemical energy into steam heat energy.
Air heaters can be divided into three series of products: power plant air heaters, hybrid air heaters, pipeline air heaters, etc .: Air heaters can be divided into liquid heaters and steam heaters according to different heating methods. . Jet mixing heaters are divided into 12 product specifications: DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400 according to the delivery volume of heated liquid and different pipe diameters.
Muffler heater is a direct heating device installed on the pipeline, which can be used as raw water heating in the chemical water treatment system of power plant boilers. It has the advantages of automatic water temperature adjustment, small size, compact layout, high thermal efficiency, low noise, simple installation, and no space occupation. When the output flow of the jet hybrid heater changes, it can be achieved by adjusting the liquid inlet valve.
At the same time, the characteristics of boiler operation adjustment power plant boilers are different from industrial boilers. According to the relevant regulations of the National "Boiler Safety Supervision Regulations", the boiler water quality requirements of power plant boilers are extremely strict. Excessive water quality will affect steam quality and the life of pressure-bearing components And many aspects such as salt formation and fouling of steam turbines.
