Guide: Compared with conventional boilers, condensing boilers can generate more energy when consuming the same amount of gas; that is, the thermal efficiency of condensing boilers is higher than that of conventional boilers, so condensing boilers are more energy-efficient than conventional boilers.
Compared with conventional boilers, condensing boilers can generate more energy when consuming the same amount of gas; that is, the thermal efficiency of condensing boilers is higher than that of conventional boilers, so condensing boilers are more energy-efficient than conventional boilers.
The condensing boiler can have such a high thermal efficiency because of the following reasons:
1) Ultra-low flue gas temperature
The exhaust gas temperature of conventional boilers is around 110°C-200°C, while the condensing boiler needs to reduce the exhaust gas temperature to reach the dew point (55°C) temperature of water vapor because of the condensation effect and the steam in the flue gas turns into water. , So the exhaust gas temperature of the condensing boiler is between 40℃-70℃. In this way, the heat is fully utilized and the heat loss is greatly reduced.
2) Full premixed combustion
The air volume of conventional boilers cannot be automatically adjusted, so the air supply volume is large during small fires, and may be too small during large fires, resulting in incomplete combustion and waste of gas; while the condensing boiler is fully premixed combustion, and the air volume can be automatically adjusted to make The ratio of air volume to gas volume is more suitable for combustion.
3) Fully enclosed combustion
Conventional boilers only have the main heat exchanger above the flame, which will cause heat loss around; while the condensing boiler adopts fully enclosed combustion, and the combustion flame is surrounded by heat exchangers, which effectively reduces the heat of the furnace itself.