Pre Heating Heat Exchanger

The Pre Heating Heat Exchanger, also referred to as the air preheater/industrial air to air plate heat exchanger, is a kind of preheating equipment that improves the heat exchange performance of the boiler and reduces the heat loss.The function of the air preheater is to conduct the heat carried in the flue gas discharged from the flue at the tail of the boiler to the air before entering the boiler through the heat sink, and preheat the air to a certain temperature.Air preheaters are mostly used in coal-fired power station boilers.Advantages of air preheaters:1. Improve and strengthen combustion.The air after passing through the waste heat exchanger enters the furnace, which accelerates the drying, ignition and combustion process of the fuel, ensures the stable combustion in the boiler, and improves the combustion efficiency.2. Enhance heat transfer.Because the combustion in the furnace has been improved and strengthened, and the temperature of the hot air entering the furnace has been increased, the average temperature level in the furnace has also been increased, which can strengthen the radiation heat transfer in the furnace.3. Reduce the loss in the furnace, reduce the exhaust gas temperature, and improve the thermal efficiency of the boiler.Due to the stable combustion in the furnace and the strengthening of radiative heat exchange, the chemical incomplete combustion loss can be reduced; on the other hand, the air preheater uses the waste heat of the flue gas to further reduce the exhaust gas loss, thus improving the thermal efficiency of the boiler.4. Hot air can be used as fuel desiccant.For layer-fired furnaces, hot air can use fuels with high moisture and ash content. For power station boilers, hot air is an important desiccant and pulverized coal conveying medium in the pulverizing system. Hot Tags: pre heating heat exchanger, China, manufacturers, suppliers, price, for sale