Structural characteristics of shell boilers

The boiler is shipped in large pieces and assembled on site, which can shorten the installation cycle of the boiler and save the installation cost. The boiler has high thermal efficiency and easy operation, which greatly reduces the labor and electricity cost. As the boiler has no refractory brick wall, it can save a lot of boiler maintenance cost every year.

The basic structure of a shell boiler is a double-layer jacket structure. The outer cylinder is called the pot shell, the inner cylinder is called the furnace liner, and the circular space between the inner and outer cylinders holds water, while the inner cylinder is the combustion chamber. When the water vapor medium is under pressure, the shell of the boiler is subjected to internal pressure and the furnace liner is subjected to external pressure. There are two types of shell boilers: discrete and horizontal. The commonly used fuel and gas boilers are WNS horizontal internal combustion shell boilers.

Shell boilers have the following common characteristics:

1. The "pot" for holding water and the "stove" for cooking are both contained in a shell - the pot shell;

2. The metal furnace has a small volume, is surrounded by water, has a high degree of water cooling, and has poor combustion conditions. Therefore, high-quality fuel must be burned; 3. The heating surface is small, and the evaporation or thermal power is small. Water pipes or pyrotechnic tubes are often installed to increase the heating surface and boiler capacity; 4. The shell of the pot has a larger diameter, more openings, and an irregular shape. The internal heated and non heated parts are connected together, resulting in different temperatures and degrees of thermal expansion, resulting in poor safety of the shell; 5. The boiler structural system is relatively simple, making it easy for transportation, installation, operation management, and inspection and maintenance.

The above is Jiangsu Sifang Clean Energy Equipment Manufacturing's answer to this question. If you have any questions about other boiler related issues, please consult Jiangsu Sifang Clean Energy Equipment Manufacturing's online customer service or call 0516-85871846 or 0516-85532705. Jiangsu Sifang Clean Energy Equipment Manufacturing's professional technicians will answer your questions in time.