steris steam boiler, ZOZEN boiler engineers provide on-site guidance

With emission requirements changing every day, it is also important to make sure that you are proactive when selecting equipment that will comply with future air regulations. Zozen Boiler has the most experience in selecting boiler equipment that will meet current and future NOx requirements.

The condensate water draining performance plays an essential role in the normal operation of gas-fired boiler to prevent the emission of steam when condensate water, air and carbon dioxide are discharged. Intended to realize a better effect of water draining and steam holding, ZOZEN Boiler’s technical team improved the original boiler structure for excellent condensate water draining performance to reduce energy consumption and cut down production cost for the enterprise.

steris steam boiler, ZOZEN molten salt heaters use molten potassium nitrate and sodium nitrite as heating media. Molten salt heater will heat the powder salt over the melting point until the viscosity of the molten salt allows circulating pump works, after the whole system is under circulating condition, then feed then into the thermal fluid heater for further circulating rising temperature to make it to be recycling used. Normal media working temperature is 400-550℃, top working temperature could reach 600℃.

This time, GOTEC Group built a new plant in Toluca, Mexico, to expand its world map. As the important energy equipment for a new plant, the efficient and stable operation of the gas-fired hot water boilers would directly affect the company’s production efficiency and product quality. Based on previous friendly cooperation with ZOZEN, GOTEC Group appreciated ZOZEN’s WNS series gas-fired hot water boiler. Aiming at the characteristics of load changes in the actual production process of the Mexican plant, ZOZEN equipped the easy-to-operate PLC automatic control system for the boilers. The PLC automatic control system adopts advanced frequency conversion technology and fuzzy control technology to achieve high-efficiency and energy-saving operation by changing the gas volume of the boiler. After the automatic function is turned on, the controller can also automatically control the system according to the mode set by the user to ensure the safe and stable operation of the boiler.

The main advantage of ZOZEN’s circulating fluidized bed boiler lies in the direct control of pollutant emission during the combustion process. This type of boiler adopts low-temperature combustion technology. The temperature of normal boiler furnace is as high as 1400-1500°C during combustion, while that of circulating fluidized bed boiler furnace is within a lower temperature range of 800-900°C, which reduces the production of nitrogen oxides (NOx); meanwhile, by adding low-cost limestone to circulating fluidized bed boiler, sulfide (SOx) can be removed during fuel’s combustion.

The waveform stove furnace is an important part of the WNS series of oil-fired/gas-fired boiler. This part is directly exposed to the radiation of high-temperature flame and erosion of high-temperature flue gas. The use of the axial expansion and contraction of waveform stove furnace can reduce the thermal stress generated by the shell, tube plate and furnace itself, and more importantly, reduce the stress concentration caused by the elongation of furnace at the connection between furnace and tube plate. At the same time, the waveform stove furnace strengthens the flue gas disturbance, effectively improves the heat transfer effect of unit area and volume, and further improves the thermal efficiency of boiler.

steris steam boiler, The two sides cooperated well for the steam boiler project in Bangladesh. ZOZEN will continue to provide high quality products for the global industrial boiler market in the future.