Zozen Packaged Intelligent Gas Fired Steam Boiler with PLC

• The key part such as material cutting, rolling, drilling are proceeded by advanced CNC machining process to reduce the assemble stress and extend boiler working lifetime.

• The front and back smoke chamber plates are cut by CNC plasma cutting machine and looks tidy and beautiful.

• Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.

• Smoke tube and tube sheet connection is expanded first to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boilers working life. 

• Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will have 100% radiographic inspection.

• Fin tube us ND steel or stainless-steel material which avoid low temperature corrosion.

• Inspection procedure point is set up to guarantee the sequence of expanding and welding, avoid cracking of the tube sheet holes.

• High quality aluminum silicate fiber is used with fire clay insulation, to control the boiler body temperature below 45ºC to control heat lost.

• Sufficient steam storage room and heating area makes boiler to generate high quality steam and high thermal power.

• Condenser is added to reuse the waste heat of the exhausted smoke to increase feeding water's temperature and reduce emission temperature, which can increase the thermal efficiency above 98% and save operating cost.

1. Boiler Features:

1.1 Long working life
3-pass and wet-back are designed to avoid the damage of back tube sheet from the high temperature smoke.

1.2 Compact desegn

Threaded firetube and corrugated furnace are used to increase the heating area. That allows over 30% of the energy to be absorbed in the furnace. This means a shorter boiler overall. Definitely, it can save your boiler room construction costs.

1.3 New type economizer
It is made by finned ND tubes. It is smaller but the heat exchanging area is bigger than normal. By calculation, It can save around 5% fuel.

1.4 Low emissions
Lowering emissions in the ZOZEN-WNS series of boiler involves two key factors:
(1) advanced burner solution;
(2) the proper sizing of furnace to minimize nitrogen oxides and other contaminants from forming during the combustion process.

1.5 Safety control system
We design the safety interlock system with multiple protection and alarm functions
- Protection program of automatic ignition
- Locking and protection program of operation
- Protection program of extinction
- Protection program of completion
- Protection program of water pumps (pressure loss)
- Protection program of ignition failure
- Protection program of combustion engine malfunction
- Protection program of combustion engine flameout
- Sound-light alarm of high pressure
- Sound-light alarm of high limit water level
- Sound-light alarm of low limit water level
- Sound-light alarm of super-high temperature of hot water

2. Our market in the world

Nowadays, we have exported our boilers to the following countries: India, Indonesia, Pakistan, Malaysia, Thailand, Laos, Vietnam, Bengal, Philippines, Taiwan China, Papua New Guine, France, Finland, Turkey, Serbia, Lithuania, Bulgaria, Russia, Mongolia, Venezuela, Chile, Colombia, Mauritius, South Africa, Ethiopia, Algeria, Nigeria, Tanzania, Oman, UAE, etc.

3. Total Integration goes far beyond boilers

Efficiency and quality don't end with our boilers. ZOZEN complete integration produces the most efficient boiler solutions in the world. Completely designed, engineered, manufactured, integrated, and serviced by our team, our systems don't have a single outsourced component to jeopardize compatibility or performance. If you are looking for the best-quality boiler systems with the lowest emissions and highest efficiencies, you are looking for Zozen.

4. Boiler Specification
 


Wuxi Zozen Boilers Co., Ltd., which was founded in 1988, is now one of the most influential boiler manufacturers in China with a manufacturing base covering hundreds of thousands of square meters. It ranks top in the industrial boiler sector in Asia in terms of the variety of its products, the level of automation in its manufacturing facility and the volume of its production. 
Nowadays, ZOZEN's products have been exported to more than 100 countries and regions around the world and are widely used for application in urban central heating, heating for large residential areas, heating for large factories and mining enterprises,heating for the breeding industry and fruit and vegetable greenhouses, etc.