Boiler exhaust gas temperature is not the lower the better
To 100 million kcal / h boiler, for example, ordinary boiler gas consumption of 126.5Nm3 / h (natural gas low calorific value for natural gas prices.
For the use of the boiler to provide thermal energy in the water ring water source air conditioning, the hot water temperature of 25 ℃, the use of condensing boiler than ordinary hot water boiler to save a lot of operating costs.
In the case of the same fuel consumption, the lower the backwater of the heating system, the more heat recovered by the condensing waste heat recovery unit, the higher the thermal efficiency of the boiler.
When the ordinary boiler of the non-condensing recovery unit burns the natural gas, if the thermal efficiency of the boiler is 90% as the low calorific value of the fuel, the exhaust heat temperature is reduced to 30 to 50 ° C after the condensing waste heat recovery unit is used, and the thermal efficiency is improved
The amount of steam latent heat that can be recovered by the condensing boiler is related to the type of fuel used in the boiler and the effluent temperature of the boiler.
