Three-tube chimney with flue gas hole at bottom and externally-connected triangular sleeve

Abstract

The invention relates to a three-tube chimney with a flue gas hole at the bottom and an externally-connected triangular sleeve. The three-tube chimney comprises a three-tube chimney body; structures and cross sections of three chimney single bodies of the three-tube chimney are the same; an equilateral triangle is formed by the centers of the cross sections of the three chimney single bodies of the three-tube chimney; outer walls of the chimney single bodies are reserved at equal intervals; the external of the three-tube chimney body is provided with a triangular-prism-shaped sleeve with a triangular cross section in a sleeving mode; the three chimney single bodies are all cut in the inner wall of the triangular-prism-shaped sleeve; the outer walls of the chimney single bodies are providedwith flue gas channels; and the wall face, located in the triangular-prism-shaped sleeve, of the chimney unit is provided with an access hole. The three-tube chimney with the flue gas hole at the bottom and the externally-connected triangular sleeve has uniform force in all directions and reasonable structure, a personnel entrance, the flue gas channels and the access hole are separately arrangedon the wall surface and the tangent line, so that the overall force of the chimney is balanced, and the stress concentration is not prone to happening.

Description

technical field [0001] The invention relates to the technical field of chimney structure design, in particular to a three-pipe chimney with flue gas holes at the bottom and external triangular sleeves. Background technique [0002] With the continuous improvement of the country's requirements for flue gas emission standards, new thermal power plants are required to perform flue gas desulfurization treatment. Among the newly built chimneys using wet desulfurization technology, multi-tube steel inner tube chimneys become power plant chimneys A form commonly used in . The multi-pipe steel inner tube chimney can be divided into self-supporting type and hanging type according to the chimney structure. The design of the self-supporting steel inner tube chimney has higher requirements for the interface of the horizontal flue, and the temperature expansion of the horizontal flue will cause the steel inner tube. Adverse effects: The design of the expansion joint of the suspended ste...

AI Technical Summary

Problems solved by technology

This invention overcomes the defects of the conjoined chimney of the traditional technology to a certain extent. However, the chimney structure of this case needs to be improved and improved in terms of the overall performance of the chimney, including the anti-seismic performance and the ability to resist loads.

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