To speed up the process of burning thermal coal in Xuyang, Tianjin, ZOZEN Boiler undertook the supply of two 70MW gas-fired hot water boilers. ZOZEN SZS gas-fired hot water boiler adopts large-area membrane wall structure, with high heat transfer efficiency and low nitrogen burner, which can effectively control the emission of nitrogen oxides.
ZOZEN provides 4 sets of 70MW gas-fired hot water boilers for the winter heating supply in the local area. The project of heating supply requires clean energy and environmental emission. ZOZEN hot water boilers are designed with advanced burners to ensure the sufficient combustion.
According to different boiler capacities, the boiler delivery can be divided into three ways, package delivery, assembled delivery and delivery in bulk. The video shows the important pressure part --- boiler drums.
The 3 sets of 29 MW gas-fired hot water boilers serving for Jin-an Thermal Power in Tianjin were installed in 2015. The boiler is a common type for central heating which adopts the full membrane wall structure and a D-type layout. It has the characteristics of micro-positive pressure combustion, no air leakage, low heat loss caused by exhaust gas and high thermal efficiency. During the boiler manufacturing process, ZOZEN Boiler emphasizes that the welding of each baffle must be tight, and the height of welding leg should meet the requirements specified on the design drawing to ensure the leakproofness of the boiler. In addition, ZOZEN Boiler also sets strict welding standards for detailed parts including the door opening and kiln eye to prevent the high-temperature flue gas from leaking.
WNS series gas-fired or oil-fired hot water boiler is smoke-fire tube chamber combustion boiler and adopts two-pass or three-pass structure. It also adopts large-diameter waveform stove furnace with good thermal expansion and safety performance. There are condenser and economizer added at the end of flue gas duct which can improve the thermal efficiency to more than 95% and save boiler's operation costs.
ZOZEN customized the gas-fired hot water boiler system, and recommended several sets of SZS series natural gas fired hot water boilers, which had the characteristics of sufficient output, high thermal efficiency and stable operation. This series of boilers is designed with longitudinal double drums and "D" type chamber structure.
