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Tube panel arrangement structure for waste heat boiler reheater

A technology for layout structure and waste heat boiler, which is applied in steam superheating, lighting and heating equipment, steam generation, etc., and can solve problems such as large header stress

Pending Publication Date: 2017-12-15
WUXI HUAGUANG BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned problem of excessive header stress, the present invention provides a tube panel arrangement structure for the reheater of the waste heat boiler, which can solve the problem of excessive header stress caused by the different expansions of different tube rows of the reheater

Method used

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  • Tube panel arrangement structure for waste heat boiler reheater
  • Tube panel arrangement structure for waste heat boiler reheater
  • Tube panel arrangement structure for waste heat boiler reheater

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Embodiment Construction

[0009] See figure 2 , image 3 As shown, a waste heat boiler reheater tube panel arrangement structure includes an upper header 1 and a lower header 2, a heating surface tube 2 is arranged between the upper header 1 and the lower header, and the lower header 1 includes two One auxiliary header 3 and one main header 4, the heating surface pipe 2 is connected to the upper header 1 and the auxiliary header 3, the auxiliary header 3 is connected to the main header 4 through the expansion pipeline 5, away from the side of the flue gas intake direction The expansion pipeline 5 is an annular pipeline, as can be seen from the figure, the annular pipeline length of the three rows of heating surface tubes 2 in embodiment one is the same as the annular pipeline length of four rows of heating surface tubes 2 in embodiment two Different, for different reheating systems, it is only necessary to adjust the length of the expansion loop to realize the scientific distribution of the working m...

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Abstract

The invention relates to the technical field of waste heat boiler structures, in particular to a tube panel arrangement structure for a waste heat boiler reheater. The tube panel arrangement structure can solve the problem of too large header stress caused by different expansion amounts of different tube bundles of the reheater. The tube panel arrangement structure comprises an upper header and a lower header. A heated face tube is arranged between the upper header and the lower header. The tube panel arrangement structure is characterized in that the lower header comprises two auxiliary header bodies and a main header body, the heated face tube is connected with the upper header and the auxiliary header bodies, the auxiliary header bodies are connected with the main header body through expansion pipelines, and the expansion pipeline on the side away from the smoke inlet direction is an annular pipeline.

Description

technical field [0001] The invention relates to the technical field of waste heat boiler structures, in particular to a tube-panel arrangement structure of a waste heat boiler reheater. Background technique [0002] Because the temperature rise of the reheater tube panel is relatively large, in order to avoid the problem of excessive header stress caused by the difference in expansion between different tube rows of the reheater, the traditional layout of the reheater tube panel is one inlet header and one outlet The header is connected to two rows of heating surface tubes, such as figure 1 shown. For some special projects, the reheater system needs to arrange three or even four rows of pipes. At this time, the arrangement of one inlet header and one outlet header connected to the heating surface pipes has great safety problems. Unable to overcome the problem of excessive header stress. Contents of the invention [0003] Aiming at the above-mentioned problem of excessive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22G7/00F22G3/00
CPCF22G3/007F22G7/00
Inventor 朱芳仇建国顾全斌董黎莹陆彬
Owner WUXI HUAGUANG BOILER
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