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Double-flue reversal chamber of large horizontal fire-tube boiler

A fire-tube boiler and dual-furnace technology, which is applied to steam boilers, steam boiler accessories, steam boiler components, etc., can solve the problems of difficulty in realizing the drum, reduce the space utilization rate of the drum, and reduce the diameter, The effect of increasing strength and reducing diameter size

Inactive Publication Date: 2014-10-22
JIANGSU SHUANGLIANG BOILER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, the horizontal boiler is limited by the diameter of the furnace, and it is difficult to realize a single boiler furnace with a capacity of more than 20t / h (14MW) boilers, and the circular backfire chamber greatly reduces the space utilization of the drum

Method used

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  • Double-flue reversal chamber of large horizontal fire-tube boiler
  • Double-flue reversal chamber of large horizontal fire-tube boiler
  • Double-flue reversal chamber of large horizontal fire-tube boiler

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Embodiment Construction

[0023] see Figure 2~5 , figure 2 It is a schematic diagram of a large horizontal fire tube boiler double furnace recombustion chamber in the drum of the present invention. image 3 It is a schematic diagram of the front structure of the double-furnace recombustion chamber of a large-scale horizontal fire-tube boiler of the present invention. Figure 4 for image 3 left view of . Figure 5 for image 3 right view of . Depend on Figure 2~5 It can be seen that the large-scale horizontal fire tube boiler double-furnace recombustion chamber of the present invention is mainly composed of a cylinder body 2 , a front tube plate 1 , a rear tube plate 3 and reinforcing ribs 4 . The cylinder body 2, the front tube sheet 1 and the rear tube sheet 3 are all waist-shaped. The front tube sheet 1 and the rear tube sheet 3 are molded and pressed by heated steel plates, and their edges are all provided with circular arc edges. , The straight sections of the cylinder body 2 and the re...

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Abstract

The invention relates to a double-flue reversal chamber of a large horizontal fire-tube boiler and belongs to the technical field of heating equipment. The double-flue reversal chamber comprises a cylinder (2), a front tube sheet (1) and a back tube sheet (3). The front tube sheet (1) and the back tube sheet (3) are respectively in butt welding with the cylinder (2). The double-flue reversal chamber is characterized in that the cylinder (2), the front tube sheet (1) and the back tube sheet (3) are all oval and two round holes are symmetrically formed in the left and the right of the front tube sheet (1) and correspond to double flues in a barrel of the horizontal fire-tube boiler respectively. The reversal chamber can not only meet a limiting condition of wall thickness but utilize internal space of the barrel to the utmost extent and accordingly make the output of 35t / h (29MW) possible to the horizontal internal-combustion fire-tube boiler.

Description

technical field [0001] The invention relates to a horizontal fire tube boiler, in particular to a combustion chamber of the horizontal fire tube boiler. It belongs to the technical field of heating equipment. Background technique [0002] Most of the horizontal fire tube boilers are quick-installed, with the advantages of small footprint, simple system, and convenient installation, and they occupy an important position in my country's industrial boilers. However, the output of such boilers generally does not exceed 20t / h (14MW) due to the structural restrictions in GB / T16508 "Calculation of Strength of Boiler and Drum Pressure Components". [0003] Horizontal boilers have incomparable advantages over water tube boilers due to their fast-installed structure, convenient transportation and installation methods. However, as the market demand for large-capacity horizontal boilers increases, horizontal boilers are developing in the direction of large drums and large furnaces. B...

Claims

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Application Information

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IPC IPC(8): F22B37/02
Inventor 汪新球许清潘聚峰刘建明黄志超王超
Owner JIANGSU SHUANGLIANG BOILER
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