Gas boiler accessories use natural gas with high calorific value and low pollution, but the price of natural gas is also high. Therefore, it is an important task to have a boiler that can save gas and improve thermal efficiency. So Jinzihao will talk about the energy-saving technology used in gas boiler accessories.
Gas boiler accessories
1. Reduce exhaust heat loss
Exhaust heat loss is mainly affected by exhaust temperature and excess air coefficient α. When the excess air coefficient α is too large, it will increase the amount of smoke and absorb more heat. Therefore, the excess air coefficient should be reduced as much as possible under the premise of ensuring the combustion efficiency of the boiler. The structural characteristics of the boiler body, the type and characteristics of the fuel can be matched by reasonable configuration of the burner and strict operation adjustment to ensure that the flame fills the furnace and the fuel is fully burned.
2. Condensation waste heat recovery technology
A condensing boiler refers to a boiler that can absorb the latent heat of vaporization contained in water vapor from the flue gas discharged by the boiler. Conventional boilers transfer most of the sensible heat in the flue gas to water or steam. Condensing boilers not only transfer most of the sensible heat to water or steam, but also absorb some of the latent heat of evaporation released by the condensation of water vapor in the flue gas.
3. Conventional gas boiler accessories with waste heat recovery device
Separate flue gas waste heat recovery devices can generally be divided into direct contact heat exchangers and indirect heat exchangers. Direct contact heat exchangers use water spraying to directly contact the flue gas for heat and mass exchange. This method has a high heat recovery rate and absorbs a large amount of harmful substances in the flue gas. However, the water recovered in this way is acidic and its use is limited. The hot water generated by waste heat recovery is difficult to use in general civil heating boiler rooms, so heating boiler rooms generally do not use this method.
Gas boiler accessories use natural gas with high calorific value and low pollution, but the price of natural gas is also high. Therefore, it is an important task to have a boiler that can save gas and improve thermal efficiency. So Jinzihao will talk about the energy-saving technology used in gas boiler accessories.
Gas boiler accessories
1. Reduce exhaust heat loss
Exhaust heat loss is mainly affected by exhaust temperature and excess air coefficient α. When the excess air coefficient α is too large, it will increase the amount of smoke and absorb more heat. Therefore, the excess air coefficient should be reduced as much as possible under the premise of ensuring the combustion efficiency of the boiler. The structural characteristics of the boiler body, the type and characteristics of the fuel can be matched by reasonable configuration of the burner and strict operation adjustment to ensure that the flame fills the furnace and the fuel is fully burned.
2. Condensation waste heat recovery technology
A condensing boiler refers to a boiler that can absorb the latent heat of vaporization contained in water vapor from the flue gas discharged by the boiler. Conventional boilers transfer most of the sensible heat in the flue gas to water or steam. Condensing boilers not only transfer most of the sensible heat to water or steam, but also absorb some of the latent heat of evaporation released by the condensation of water vapor in the flue gas.
3. Conventional gas boiler accessories with waste heat recovery device
Separate flue gas waste heat recovery devices can generally be divided into direct contact heat exchangers and indirect heat exchangers. Direct contact heat exchangers use water spraying to directly contact the flue gas for heat and mass exchange. This method has a high heat recovery rate and absorbs a large amount of harmful substances in the flue gas. However, the water recovered in this way is acidic and its use is limited. The hot water generated by waste heat recovery is difficult to use in general civil heating boiler rooms, so heating boiler rooms generally do not use this method.