After the electric hot water boiler is out of service, it is necessary to carry out corresponding maintenance work to prevent corrosion problems inside and outside the furnace. So, do you know how to maintain the electric hot water boiler after it is shut down?
1. After the electric hot water boiler is shut down for cooling, completely remove the ash from the heated surface and the ash from the upper part of the grate and the lower part of the furnace.
2. Keep the flue has a certain natural ventilation. Under normal circumstances, in order to prevent moisture, desiccant should be placed in the furnace and flue. If quicklime is used as the desiccant, it is necessary to place about 3 kg of quicklime per cubic meter of furnace or flue. After placing, all the ventilation doors should be closed tightly. The quicklime turns pink and needs to be replaced. If the location of the boiler room is low, and the ground flooding is severe during the shutdown, the combination of frequent low-fire baking and desiccant should be used. If the boiler is shut down for a long time, red sand oil or other anti-corrosive paint is applied to the outer surface of the furnace metal after the soot is completely removed.
3. As for the anti-corrosion maintenance method of stopping the furnace inside the furnace, it is determined according to the length of the shutdown time. Under normal circumstances, the furnace can be shut down for more than one month of available wet maintenance, and more than one month should be dry maintenance.
Wet maintenance is suitable for electric hot water boilers with a shutdown period of no more than one month. After the furnace is stopped, the boiler water is discharged, cleaned and filled with clean water, the power is cut off, and the valve is closed.
Dry maintenance means that after the furnace is shut down, the boiler water is released, the dirt in the furnace is washed out, the boiler is dried with a burner, and then all the boiler gases are drained, and all the pipeline valves are closed every three months. Check once.
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.
