It is well known that industrial boilers with efficient and stable operation are critical to all industries. ZOZEN has been developing for 30 years, and has a sophisticated technical research and development team. Through the painstaking research on boiler efficiency, it has made major breakthroughs which have received much attention from all walks of life and achieved great results.
In the research of improving boiler efficiency, ZOZEN found that there were various causes for poor boiler efficiency including blow down losses, stack losses, incomplete combustion and other losses:
Blow down losses
A. Continuous Blow down
B. Intermittent Blow down
A. High excess air
B. Flue gas heat
C. Scale, Soot Formation
A. Coal particle size
B. Poor atomisation
C. High viscous oil
D. Damaged/Carburized Gun tips
E. Less combustion air flow
A. Radiation and Convection Losses
B. Steam and gas leaks
C. Mositure,ash and sulfur in fuel
D. Pressure drop in dampers/control valve
ZOEN Boiler, as an expert in R&D and manufacturing of industrial boiler industry, has formed more than 400 specifications including gas-fired boilers, biomass-fired boilers, coal-fired boilers and thermal oil heaters. In order to improve product efficiency, ZOZEN has optimized and upgraded all products accordingly, and the efficiency has been improved. Boiler products are highly praised by Russia, Pakistan, Australia, Thailand, Spain, United Arab Emirates and other markets.
Regarding gas-fired (oil-fired) boilers, ZOZEN adopts the large furnace design to make the full combustion of fuel; The front and rear smoke boxes are all adopt uniquely sealling structure of ZOZEN, ensuring that the smoke box does not leak smoke; in addition, according to the different working conditions of the user, the corresponding condenser and economizer are arranged at the tail, and the exhaust gas temperature can be reduced to 60 degrees to improve the boiler thermal efficiency.
ZOZEN gas-fired (oil-fired) water tube boiler in Thailand food industry
Regarding coal-fired boilers, ZOZEN adopts dense drainage water wall tubes, which solves the problem that the temperature of the outer surface of the furnace wall is generally higher than the national standard due to the radiation of high temperature flue gas in the furnace wall, which reduces the heat loss and improves the thermal efficiency of the boiler. Meanwhile, the combustion air system (base) adopts independent compartment and scientific sealing structure; reasonable air conditioning device achieves the goal of accurate air distribution and combustion efficiency improvement.
ZOZEN coal-fired boiler for feed industry in Pakistan
Regarding biomass-fired boilers, ZOZEN optimizes the feeding hopper, the width and length of the grate, the rotary speed of gearbox, 1st and 2nd air ratio and the position and direction of the 2nd air outlet. ZOZEN also optimizes the boiler design according to different fuels to ensure sufficient boiler output, high efficiency and stable operation.
ZOZEN biomass-fired boilers for oil refining industry in Indonesia
Regarding thermal oil heaters, the surrounding, front and back (or up and down) door covers of ZOZEN thermal oil heater body are designed with different thickness of refractory insulation structure according to different temperature areas, which reduce heat dissipation, so that the surface temperature is better than GB standard requirements. At the same time, according to the actual situation, the heater tail is equipped with the waste heat boiler, economizer, air preheater, steam generator, etc., to reduce the exhaust gas temperature to 90 degrees, and effectively improve the thermal efficiency.
ZOZEN thermal oil heaters for CP Group
In the future, ZOZEN will continue to carefully develop products with technology and create high-quality products, making ZOZEN manufacturing go further and further on the road of internationalization.