15mw gas fired water tube boiler in chemical plant, ZOZEN Boiler gas-fired boilers have sufficient output and high thermal efficiency

The year 2020 is a significant year for ZOZEN Boiler that we together overcame the difficulties brought by COVID-19, implemented the lean factory project, carried out performance appraisal in the whole company, etc. This year, as ZOZEN Boiler is undergoing a huge change from top to bottom, the performance appraisal and promotion system of front-line staff also has important changes.

15mw gas fired water tube boiler in chemical plant, During the "Thirteenth Five-Year Plan" period, China's oil refining industry will focus on transformation and upgrading, and continue to enhance comprehensive strength. It will vigorously eliminate backward production capacity and improve the scale and technology of its units. Among them, the boiler as an important piece of energy equipment is indispensable in the petroleum refining process.

15mw gas fired water tube boiler in chemical plant, ZOZEN’s circulating fluidized bed combustion (CFBC) technology is a new and mature coal cleaning technology with high efficiency and low pollution. The circulating fluidized bed belongs to low-temperature combustion, so it effectively reduces the generation of nitrogen oxides (NOx, only about 100mg/Nm3) and realizes direct desulfurization during the combustion process with high desulfurization efficiency. This kind of boiler has the characteristics of high thermal efficiency (89%), large load adjustment range, fast load adjustment speed, low failure rate and long operation cycle.

PT.Mikie Oleo Nabati is an palm oil company in Indonesia. Steam boilers are used for refining, bleaching, deacidification, deodorization, fractionation and other processes in the palm oil production. The biomass-fired boilers the company ordered from ZOZEN can perfectly resolve the problems of scaling, abrasion, burning front arch and feeding hopper. The thermal efficiency of ZOZEN’s biomass-fired boilers can reach above 88%.

15mw gas fired water tube boiler in chemical plant, ZOZEN’s coal-fired boilers have the technical advantages of sufficient output, low emission and energy saving with a high degree of automation to realize the mechanization of fuel supply, ash and slag discharges. More importantly, the thermal efficiency of coal-fired boiler system designed by ZOZEN is 5% higher than that of other normal boiler system. ZOZEN’s coal-fired boilers also have wide fuel adaptability: cfb boilers can use coal, gangue, garbage, sludge and so on while chain grate boilers can use bitumite, meagre coal, anthracite and so on.

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.

This project is of great significance to ZOZEN, promoting ZOZEN’s development in Central Asia and building a strong foundation in future international development.