According to the way hot water flows in the pot, it can be divided into two types: forced circulation and natural circulation hot water boilers.
Forced circulation hot water boilers are generally not equipped with a drum, but are composed of some heated parallel pipes and containers. The vicious cycle power of hot water is provided by the circulating water pump of the heating network. This type of hot water boiler has compact scale and low steel consumption. Small, good hydrodynamic stability, but in order to prevent excessive hydraulic deviation and circulation stagnation, a relatively high flow rate in the pipe is generally used, coupled with a long stroke and a large resistance coefficient, the power consumption of the boiler water intake is high; at the same time, due to forced The water capacity of the circulating hot water boiler is small, and its resistance to accidents such as water hammer and other accidents caused by the vaporization of the hot water in the tube due to the thermal inertia of the furnace when the water is interrupted due to a sudden power failure during operation is poor.
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