Water tube boiler is a common boiler type, mainly composed of vertical drum, water wall tube, convection tube bundle and left and right headers. The boiler tonnage is relatively large, generally about 10-100 tons. The water tube boiler is the star product of Zhengzhou Fangkuai Boiler Factory. The unique characteristics of energy saving, environmental protection, high efficiency, low emission and rational structure design of the boiler have been recognized by many industry users after being introduced into the market. The market share is also increasing year by year.
At present, single vertical drum water tube boilers are divided into two types: light furnace wall integral furnace type and heavy furnace wall bulk furnace type.
The drum is arranged longitudinally in the center of the upper part of the furnace, and two sets of convection tube bundles and water wall tubes are arranged on both sides of the furnace, symmetrical to the left and right, similar to the A shape. The high-temperature flue gas enters the left convection flue from the left side of the back of the furnace, passes through the transverse flue at the front end of the drum from back to front, turns into the right convection flue, and then flows from front to back to the economizer, passing through the guide The fan and chimney are exhausted.
The single-longitudinal water tube boiler has the following advantages: it adopts one drum, which saves steel; the furnace body is A-shaped, and the furnace top insulation layer is convenient to lay; there is no partition wall in the convection tube bundle on both sides, and the structure is simple.
Of course, this design also has certain defects: the water capacity of a single drum is small, and the vapor pressure and water level fluctuate greatly during operation; it requires high water supply quality and operation management level.
Combining the advantages and disadvantages of water tube boilers explained by Zhengzhou Fangkuai Boiler Factory, you can choose the really suitable boiler equipment according to the actual situation of your own business needs.
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.






