What are the ways of economizer tube arrangement?

The arrangement of economizer tube is mainly as follows:

1. Horizontal Arrangement: In a parallel arrangement, economizer tube is placed horizontally or nearly horizontally side by side. This arrangement is suitable for a smaller number of economizer tubes and a smaller flue gas flow. It saves space and is easier to clean and maintain.

2. Vertical Arrangement: In the vertical arrangement, the economizer tube is placed vertically, usually in an upright state. The flue gas enters the pipe from the upper part and is discharged from the bottom after heat transfer in the pipe. This arrangement is suitable for a large number of economizer tube and a large flue gas flow. It provides a larger heat transfer area and a higher heat transfer effect.

3. Inclined Arrangement: Inclined arrangement is a way between parallel arrangement and vertical arrangement. The economizer tube is placed at an inclined Angle, which can save space and provide a large heat transfer area. This arrangement is suitable for medium size economizer pipe number and flue gas flow.

4. Spiral Arrangement: Spiral arrangement is a way to arrange economizer tube in a spiral shape. It can provide a larger heat transfer area and a longer heat transfer path, thereby increasing the heat transfer efficiency. This arrangement is suitable for large scale economizer systems, especially when the heat transfer area needs to be maximized in a limited space.

The choice of the above arrangement depends on the specific application environment, the working characteristics of the coal-fired boiler, the number and size of the economizer tube and other factors. In the design process, it is necessary to consider factors such as flue gas flow, flue gas temperature distribution, pressure loss, and the convenience of cleaning and maintenance to determine the most suitable arrangement.

economizer tube