There's a growing demand for the heating boilers due to the season. Previously, ZOZEN Boiler cooperated with a heating company in Tianjin to provide three sets of 29MW packaged gas-fired hot water boilers, which accelerated the completion of the project.
Automation and digital equipment are widely used in boiler production in ZOZEN Boiler Modern Production Base, which can reduce manual errors and improve the quality of boiler production. Automatic welding technology in boiler drum and steel pipe is used for welding. Welding current, welding voltage, wire feeding speed and walking speed are all fixed parameters, which greatly reduces the influence of human factors on boiler quality and ensure the welding quality.
ZOZEN WNS series gas/oil-fired steam boilers have outstanding eco-friendly performance. The flue gas emission of WNS series gas/oil-fired steam boilers can meet the environmental protection standards. Facing the strict low NOx emission requirements across the country, ZOZEN Boiler realizes the low emission of NOx (less than 30mg/Nm3) via the advanced low-nitrogen burner and combustion technology. ZOZEN WNS 20 tph steam boilers are applied in the food, chemical and nonferrous metal industries.
In response to increasingly serious environmental problems, Ji Xiang Ju Food decides to purchase low NOx and eco-friendly gas-fired steam boiler. To meet the new requirements, ZOZEN Boiler customizes the boiler system and recommends SZS series low NOx steam boiler to ensure the sufficient heat supply for Ji Xiang Ju Food's production line. This series of gas-fired boiler adopts D-model full membrane wall structure and combustion chamber adopts narrow-spacing tube membrane wall with good air impermeability to reduce heat loss and enhance the thermal efficiency to 98% and above with the economizer at the end of flue gas duct.
ZOZEN longitudinal seam welding adopts advanced submerged arc automatic welding technology to ensure welding quality. After the pre-welding treatment, ZOZEN uses automatic argon arc welding technology to complete the butt welding of steel pipes, and performs X-ray real-time imaging of the welds to prevent unqualified welds from entering the next production process. The advanced automatic welding machine completes the automatic welding of the longitudinal seams under the tracking of the photoelectric system, which not only improves the efficiency but also effectively guarantees the welding quality.
In recent years, Jinxi Petrochemical has accelerated its pace of development and is in urgent need of introducing a high-efficient and energy-saving boiler system. Regarding the actual production needs of Jinxi Petrochemical, ZOZEN recommended the safe and efficient SHL series field assembled water tube steam boiler and tailored the boiler system technical solution. This series of boilers has wide coal adaptability, the boiler water circulation adopts all-natural circulation, and each heating surface has relatively independent down comers to supply water, ensuring the safety of the overall water circulation. The large furnace design can extend the residence time of the flue gas in the furnace to make the full combustion of the fly ash and combustible gas. In addition, the flag pattern heating surface absorbs the temperature of the flue gas to a large extent, which improves the thermal efficiency of the boiler.
