Some residential heating boilers with long residence time generally use normal pressure or pressure hot water boilers, but most of these boilers have the defects of complicated system, high operating cost, easy scaling, and serious influence by oxidation and corrosion. In recent years, vacuum hot water boilers have been widely favored by the heating industry, and because of their good safety performance and low floor space, they are very suitable as building heat sources.
The vacuum hot water boiler produced by FANGKUAI Boiler has the following advantages:
1. The boiler has good safety performance. The inner body of the vacuum hot water boiler has been kept in a negative pressure operation state, and even if there is a sudden failure, it will not cause a dangerous situation of outward explosion.
2. The actual thermal efficiency is extremely high. Due to the small heat capacity of the boiler, the heating time is short, and the heat loss of start-stop is low. At the same time, the high-quality insulation material is used to reduce the heat loss to an extremely low level, and the actual running heat efficiency is greatly improved.
3. Long service life. The boiler is kept in closed operation. The heat medium water is injected once before leaving the factory, and is treated with deoxidation and softening. It does not need to be replenished in the later stage of use, and it will not scale and ensure the long-term normal use of the boiler.
4. Little impact on air pollution. The vacuum hot water boiler produced by Fangkuang boiler adopts advanced combustion technology such as full premixing and FGR to greatly reduce the emission of harmful substances such as nitrogen oxides (NOx). The use of condensers and economizers makes full use of flue gas waste heat. Not only does it reduce the exhaust gas temperature, but also reduces NOx emissions, which is extremely environmentally friendly.
5. Small footprint. The vacuum hot water boiler produced by FANGKUAI Boiler adopts Ultagen high-quality heat exchange component-winged tube, which increases the heat exchange area by 5 times compared with the ordinary boiler heat exchange tube, the heat exchange efficiency is greatly improved, and the overall volume of the boiler is also reduced. It is the best choice for many shopping malls, hotels, schools, enterprises and institutions.