ZOZEN Energy-Saving Waste Heat Boiler

Waste heat resource refers to the energy that can be recycled under the existing conditions but has not been recycled. It is considered to be the fifth largest conventional energy after coal, oil, natural gas and water power. The waste heat boiler is a kind of auxiliary equipment for comprehensive utilization of waste heat of industrial furnace, which is generally installed in the flue to absorb the waste heat in the discharged flue gas, and produce steam or generate electricity.

The waste heat boiler has great energy saving potential

The waste heat of the boiler consists of superheater, evaporator, economizer, water wall, heat exchange tube groups and containers such as header and steam drum. In the economizer, the boiler feed water is preheated, so that the feed water temperature rises to near saturation temperature; In the evaporator, the feed water changes into saturated steam; In the superheater, saturated steam is heated to become superheated steam.

The heat load of the waste heat boiler is unstable and it will change with the production cycle; At the same time, because the installation of waste heat boiler is limited by the site conditions, there will be some problems such as how to cooperate with the front and rear processes.

ZOZEN waste heat steam boiler system configured for wood processing industry

ZOZEN is emerging in the field of industrial waste heat boiler

According to the characteristics of waste heat utilization in different industries, ZOZEN Boiler can adopt different waste heat boiler solutions: for high-temperature flue gas with strong ash accumulation, ZOZEN's proprietary three-drum vertical structure (patent number ZL 2020 2 1166009.7) will be adopted to effectively solve the ash accumulation problem; for the high-temperature flue gas generated by incineration of solid and liquid wastes, the waste heat recovery scheme of suspended membrane wall multi-channel structure will be adopted, and the system will operate at high pressure, and the pipe wall temperature will be much higher than the dew point temperature of flue gas sulfuric acid, thus ensuring that the heating surface will not be corroded.

The inside of ZOZEN waste heat boiler makes full use of spiral finned tubes to absorb heat

What's more, the heating surface of waste heat boiler produced by ZOZEN adopts spiral finned tube with high heat transfer efficiency, which can further increase the heating surface, strengthen heat transfer and reduce the flue gas resistance while reducing the volume. In addition, in order to reduce the installation cost for users, ZOZEN waste heat boiler has a high in-plant assembly rate, which shortens the on-site installation cycle.