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Industrial boilers: differences between single drum boilers and double drum boilers

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2023-07-04

It plays an important role in various industries, providing thermal energy for production. In the design of industrial boilers, single drum boilers and double drum boilers are two common structural forms. This article will introduce the differences between single drum boilers and double drum boilers, helping readers better understand these two types of industrial boilers.

A single drum boiler is a common industrial boiler structure consisting of a long and narrow drum. The interior of the drum includes components such as a combustion chamber, furnace, and heat transfer tube bundle. In contrast, a double drum boiler consists of two independent drums, each used for combustion and heat transfer. Each drum has its own combustion chamber and heat transfer tube bundle.

A significant difference is that single drum boilers have a smaller footprint. Due to having only one drum, its overall structure is relatively compact and suitable for places with limited space. In contrast, double drum boilers require larger installation space due to having two drums. Therefore, when selecting a suitable boiler, it is necessary to consider the space limitations on site.

Another difference is the process of combustion and heat transfer. In a single drum boiler, the combustion chamber and heat transfer tube bundle are located within the same drum. The heat generated by combustion is directly transferred to the heat transfer tube bundle for heat exchange. A dual drum boiler uses two independent drums for combustion and heat transfer. The flue gas after fuel combustion in the combustion chamber conducts heat transfer and water supply in one drum, and then the water is transferred to another drum for further heat transfer.

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Production Base: Yongchang Industrial Zone, Fuyang District, Hangzhou

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