Boilers can be classified according to the usage, pressure rate, working medium types, output states, boiler structures, fuel types, circulation types and others. According to circulation states, boilers can be divided into natural circulation boilers and forced circulation boilers.
In the boiler evaporation system, take the density difference between water in the downcomer and water-steam mixture in the ascension pipe as driving force to build up the circulation flow of working medium (water circulation) and cool up the heating surface.
The working medium in the forced circulation boiler is not only powered to circulate by the density differences between water and steam, but also requires a certain pump work to circulate in the heating pipe. Forced circulation boilers include controlled circulation boilers, once-through boilers and combined circulation boilers.
As a large-scale industrial boiler manufacturer, ZOZEN Boiler’s products cover four major series such as oil-fired (gas-fired) boilers, biomass-fired boilers, coal-fired boilers, thermal oil heaters and have over 400 boilers types. ZOZEN can provide customized boiler based on every customer’s requirements and provide the more cost-effective boiler system solutions.
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