Judging from the current relevant policies in my country, the requirements for pollutant emissions in various provinces and cities in the future will become more and more stringent, and the emissions of nitrogen oxides in natural gas boilers will also be reduced through technical means to meet environmental protection requirements. So how do boiler manufacturers reduce the combustion temperature of natural gas boilers through technical means, so as to achieve environmental protection standards? Let Zhengzhou Fangkuai Boiler Factory come to elaborate for you.
(1) The mixing method of natural gas and air (pre-mixing or diffusion combustion, air segmentation method, primary and secondary air ratio and total excess air coefficient).
(2) Whether the air is preheated and the preheating temperature.
(3) The layout of the heating surface in the furnace.
Modern large boilers are designed with low nitrogen emissions to avoid the simultaneous occurrence of high oxygen concentration and high temperature in the same area. Therefore, it can be assumed that the boiler adopts air segmented combustion, and the primary air and fuel are premixed. But CFD simulation shows that in the center of the flame, the maximum temperature is still between 1600-1900 degrees Celsius. Outside the flame center, the temperature should be quickly reduced to below 1500 degrees Celsius, and the walls and corners should be lower.
Recently, Zhengzhou Fangkuai Boiler Sales Co., Ltd. traveled to Dhaka, the capital of Bangladesh, to attend the Bangladesh International Textile, Knitwear & Garment Industry Exhibition (BTKG 2026). It showcased industrial thermal equipment and system solutions adapted to the whole process of textile printing and dyeing, actively expanding the South Asian market.
Bangladesh is an important global producer and exporter of textiles and garments. As a pillar local industry, the textile sector has long-term and strong demand for high-efficiency, stable and energy-saving industrial boilers and thermal equipment, with broad market potential. This exhibition participation is an important measure for Zhengzhou Fangkuai Boiler Sales Co., Ltd. to advance its internationalization strategy and further explore overseas markets.
Relying on its technological accumulation and manufacturing advantages in the field of thermal energy equipment, the company provides targeted thermal energy solutions for local textile, printing and dyeing, garment manufacturing and other industries, helping enterprises improve production efficiency and reduce operating costs. In the future, Zhengzhou Fangkuai Boiler Sales Co., Ltd. will continue to focus on overseas market demands, continuously optimize its product and service system, facilitate the high-quality development of the global textile industry with professional and reliable products, and steadily enhance the brand’s competitiveness and influence in overseas markets.
Trust stems from quality
At the beginning of the new year, Fangkuai Boiler and a leading domestic new energy company have reached another important cooperation, successfully signing an order for a total of 500 steam tons.
