Compact pulverized coal boiler

Abstract

The utility model relates to the technical field of boilers, in particular to a compact pulverized coal boiler, which can effectively control the scale of the boiler, comprises a hearth, a steering chamber, an uptake flue and a tail flue, and is characterized in that the side surface of the top of the hearth is directly connected with the steering chamber; the upper portion of a rear wall water cooling wall of the hearth serves as the front portion of an enclosure wall of the steering chamber, and a low-temperature superheater located above the economizer is arranged in the steering chamber.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, specifically to a compact pulverized coal boiler. Background Technology

[0002] However, due to site constraints, the space occupied by the boiler is also limited. This necessitates designers controlling the boiler's external dimensions as much as possible without compromising its performance. Existing pulverized coal boilers, such as... Figure 1 As shown, it includes a furnace, horizontal flue, turning chamber, rising flue and tail flue. Due to the presence of the horizontal flue, the depth of the entire boiler is relatively large, occupying a large space. Summary of the Invention

[0003] To address the aforementioned technical problems, this utility model provides a compact pulverized coal boiler that can effectively control the boiler's size.

[0004] The technical solution is as follows: a compact pulverized coal boiler, comprising a furnace, a turning chamber, a rising flue, and a tail flue, wherein an economizer is provided in the turning chamber, characterized in that the top side of the furnace is directly connected to the turning chamber, the upper part of the rear water-cooled wall of the furnace serves as the front part of the wall surrounding the turning chamber, and a low-temperature superheater located above the economizer is provided in the turning chamber.

[0005] A further feature is that the economizer and the low-temperature superheater share the same hanging pipe.

[0006] By adopting this utility model, the horizontal flue area that is conventionally arranged in boilers is eliminated, and the original front wall is also eliminated. The upper part of the water-cooled wall of the rear wall of the furnace is also used as the front part of the wall of the turning chamber. The two walls are combined into one, which simplifies the wall structure, reduces the resistance of the wall tube, and reduces the length of the boiler in the depth direction, effectively controlling the scale of the boiler. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the existing technology structure;

[0008] Figure 2 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0009] See Figure 2As shown, a compact pulverized coal boiler includes a furnace 1, a turning chamber 2, a rising flue 3, and a tail flue 4. An economizer 5 is installed inside the turning chamber 2. The top side of the furnace 1 is directly connected to the turning chamber 2. The upper part of the rear water-cooled wall of the furnace 1 serves as the front of the enclosing wall of the turning chamber 2. A low-temperature superheater 6 is installed inside the turning chamber 2, located above the economizer 5. The original horizontal flue area was formed by the boiler's front enclosing wall and the flame deflector water-cooled wall. In this application, eliminating the horizontal flue area also eliminates the original front enclosing wall, simplifying the wall structure and reducing the resistance of the enclosing tubes.

[0010] After the horizontal flue was removed, the low-temperature superheater 6, which was originally located in this area, was moved above the economizer 5 in the turning chamber 2. The hanging pipes 7 of the economizer 5 can be used to suspend the low-temperature superheater 6, reducing the number of furnace top hangers.

[0011] Because the horizontal flue is eliminated, the boiler's structural layout is more compact, and the length of the horizontal flue can be reduced in the depth direction of the boiler, thereby effectively controlling the boiler's size.

Claims

1. A compact pulverized coal boiler, comprising a furnace, a turning chamber, a rising flue, and a tail flue, wherein an economizer is installed in the turning chamber, characterized in that, The top side of the furnace is directly connected to the turning chamber. The upper part of the rear water-cooled wall of the furnace serves as the front part of the enclosing wall of the turning chamber. A low-temperature superheater located above the economizer is installed in the turning chamber.

2. A compact pulverized coal boiler according to claim 1, characterized in that, The economizer and the low-temperature superheater share the same hanging pipe.

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