Recently, Zhengzhou Fangkuai Boiler Company has received many inquiries from users who want to purchase hot water boilers. For example, how does a hot water boiler achieve energy-saving operation? Why should the economizer and recirculation door be closed when the boiler is filled with water? In addition, what is the phosphate treatment of boiler feed water? Today, our technical engineers are here to answer questions for everyone.
The energy-saving operation of the hot water boiler is specifically reflected in: the heating temperature of the boiler can be very low, and the outlet temperature is in the range of 110-150 ℃. In the boiler heating process, all are sensible heat parts and no latent heat parts. In addition, the exhaust temperature of the boiler is low, so that the heat loss is small.
Why should the economizer and recirculation door be closed when the boiler is filled with water?
This is because when the boiler is started or shut down, it is sometimes for intermittent water supply, which plays a certain role in protecting the energy-saving device. At this time, the circulation door must be closed, otherwise the effect of protecting the economizer cannot be achieved. In addition, if the recirculation door is not closed during the process from the boiler to normal operation, it will affect the boiler steam quality, and there will be some other effects.
How to correctly understand the phosphate treatment in boiler feed water?
The phosphate treatment of boiler feed water is simply to add phosphate to the boiler feed water. In this way, scale will not form in the boiler, but water slag will be generated and can be discharged through the boiler blowdown, thus avoiding the boiler The problem of rust corrosion.