ZOZEN will test the leak-proof air pressure of every set of SZS series boiler before delivery. Poor tightness will lead to the leakage of gas fuel, which will not only affect the safe operation of boiler, but also increase the heat loss. The leak-proof air pressure test can secure the tightness of each SZS series gas boiler.
The WNS series light diesel boiler built by ZOZEN Boiler adopt a packaged structure, which is composed of the boiler body, burner, economizer, condenser, water and steam system and control system. It has the advantages of less occupied area, convenient installation and maintenance. This time, the boiler solution customized by ZOZEN for Inversiones Goa 7 C.A. not only has sufficient output, but also has the advantages of convenient operation, environmental protection and high efficiency while meeting customers needs, and all technical indicators have reached the advanced level at home and abroad. According to the video data sent back from the customer site, ZOZEN WNS oil-fired boiler is operating very well.
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.
This is our ZOZEN brand new WNS steam boiler. It has three basic security precautions. The first, it's a water level gauge. The second, it's a pressure gauge. The third, it's a safety valve. In addition to the three basic security precautions, our ZOZEN uniquely design an extremely low water level protection. These security precautions greatly ensure the safe operation of the boiler.
Among many boiler types, biomass-fired chain grate boiler has the advantages of wide fuel adaptability, low original emission concentration, low operating costs and easy operation. Based on the eco-friendly development thinking, ZOZEN Boiler has long been designing and manufacturing the chain grate boilers. At present, the DZL series industrial boiler adopts the advanced arch design, independently developed membrane water-cooled wall structure, special slag removal technology and reasonable sealing grate structure, which shows an obvious performance advantage.
In Sri Lanka, a set of ZOZEN 15 tph DZW series biomass-fired steam boiler was being installed and debugged. The user is a well-known local palm oil manufacturer, AEN PALM OIL PROCESSING (PVT) LTD. The boiler fuel is palm fiber. The boiler is a tri-drum boiler which has characteristics of no ash accumulation, high efficiency and good environmental protection performance. There is no need to stop the boiler for dust removal, which can make the boiler keep the normal operation for a long time. Meanwhile, considering the combustion characteristics of palm fiber, ZOZEN technicians also optimize the feeding hopper, furnace arch and air distribution device of the boiler to solve the coking problem caused by the fuel combustion.
ZOZEN WNS series oil-fired/gas-fired boiler is a kind of fire tube wetback boiler with a two-pass or three-pass structure. It is equipped with foreign advanced burner, economizer and condenser installed at the end of flue gas duct to lower the exhaust temperature to 60℃, achieve the thermal efficiency of over 98% and control the emission of NOx to less than 30mg/Nm3. It has the characteristics of compact structure, small covering area, short installation period, easy operation and complete automatic control system which can realize unattended operation.
ZOZEN SZS series oil-fired/gas-fired boiler proper adopts the D-type structure. One side is the furnace, and the other side is the convection heating surface. The partition walls around the furnace body, the partition wall between furnace and convection section, and the front and rear walls all adopt the membrane wall structure. There are foreign advanced burner, economizer and condenser installed at the end of flue gas duct, which can lower the exhaust gas temperature to 60℃, achieve the thermal efficiency of over 98% and control the emission of NOx to less than 30mg/Nm3. This kind of boiler has the characteristics of energy saving and environmental protection, safety and efficiency, simple operation and maintenance, and fully automatic control system which can realize unattended operation.
