Generally speaking, the thermal efficiency of the traditional gas fired boiler can only reach 85%~92%, and the smoke exhaust temperature is generally 140~250℃. As a result, the water generated by fuel combustion (such as natural gas: CH4+2O2→CO2+2H2O↑) in the flue gas in the superheated state will be lost from the chimney with the flue gas. The condensing gas fired steam boiler uses the principle of releasing a large amount of latent heat of vaporization in the process of water vapor condensation into liquid water, and reduces the exhaust temperature to 50~70℃ by setting up a flue gas waste heat recovery device. The apparent heat and latent heat of condensation of steam in flue gas are fully recovered, and the theoretical value of thermal efficiency can reach up to 109%.
Generally speaking, the boiler with thermal efficiency of more than 100% is difficult to understand in common sense, but if the latent heat of condensation of water steam in the flue gas is used, and the exhaust temperature is lowered low enough, the exhaust smoke loss is very low, the thermal efficiency of the boiler will be increased to 100%, or even more than 100%.
Condensing gas fired steam boiler not only has the commonness of traditional boiler, but also is the bold revolution and breakthrough of heating mechanism. In some European and American countries with high energy efficiency, the thermal efficiency of the hot water boiler with gas condensing waste heat recovery is as high as 103%, in addition, the harmful components such as CO2 and NOx in the flue gas are also greatly reduced, which is very beneficial to environmental protection.
This series of condensing gas boilers can recover the latent heat of condensation of water steam in smoke exhaust and reduce the harmful gas in smoke, so it quickly established its position in the market. European countries’ popularization of the knowledge of condensing boilers and the tilt of policies make the application of condensing boilers extremely extensive.
Zozen Boiler as specializing in the production of boiler manufacturers, over the years has always been to force on the advanced boiler technology combined with the present situation of the boiler in the market at present, energy conservation and environmental protection of a green route. Relying on the strong technical research and development team, as well as many years of industrial boiler manufacturing experience, the advanced energy utilization concept will be introduced into the industrial production, which has been unanimously praised and trusted by customers.
The gas fired steam boiler produced by our factory operates safely and stably, has a wide range of use, high quality, reasonable price, remarkable advantages and is worthy of customers’ trust. We are committed to the production of quality boilers, production experience, strong technical force, products exported to more than 100 countries and regions in the world, is the customer trust of quality boiler manufacturers.
