High-pressure fire tube boiler

By adopting conical water replenishment chambers and heat-hosing components in high-pressure fire tube boilers and combining with automated descaling systems, the problems of large temperature difference between heat exchange tubes and difficult scale cleaning are solved, achieving more uniform heat exchange efficiency and lower maintenance costs.

CN119642213AActive Publication Date: 2025-03-18JIANGSU SAIRUI TECH ENG CO LTD
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Patent Information

Application Number
CN202411810406.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-03-18
Estimated Expiration
2044-12-10

AI Technical Summary

Technical Problem

During the heat exchange process of existing high-pressure fire tube boilers, due to the large boiler body size and long length of the heat exchange tube, the temperature difference between the heat exchange tubes before and after, the heat exchange efficiency is uneven, and the difficulty of cleaning scale is increased, which increases the boiler maintenance cost.

Method used

A high-pressure fire tube boiler is designed, using a conical water replenishment chamber and heat-hosting components to improve the heat exchange efficiency of the heat exchange tube near the inlet end of the flue gas. By setting a descaling plate on the outside of the heat exchange tube and combining the drive roller and the drive components, the automatic cleaning of the heat exchange tube is realized, and the cleaning force is allocated according to the temperature and scale condition.

Benefits of technology

It has achieved the uniformity of heat exchange efficiency of high-pressure fire tube boilers, reduced the difficulty of scale cleaning and maintenance costs, and extended the service life of heat exchange tubes.

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Abstract

The invention relates to the technical field of waste heat recovery systems of sulfuric acid devices, in particular to a high-pressure fire tube boiler which comprises a water supplementing cavity, an extrusion component, a heat exchange tube, a driving component, a pushing roller, a descaling component, a descaling disc, a driving roller and a soaking component, the water supplementing cavity is arranged in a boiler shell, the heat exchange tube is fixed in the boiler shell, the driving roller is arranged on the front side of the water supplementing cavity, and the pushing roller is arranged on the back side of the water supplementing cavity. According to the high-pressure fire tube boiler, the water supplementing cavity in the boiler shell is arranged to be the conical cavity, heat exchange of the high-pressure fire tube boiler is more uniform in cooperation with the soaking part, the efficiency is improved, the water supplementing cavity is arranged to be the conical cavity, the water supplementing cavity is arranged to be the conical cavity, and the water supplementing cavity is arranged to be the conical cavity. And the inner wall of the water supplementing cavity is matched with the driving part, the extrusion part and the descaling part, so that when the descaling disc cleans the heat exchange pipes, the heat exchange pipes at the positions where scaling is prone to occurring can be slowly and carefully cleaned, the heat exchange pipes with the small scaling amount can be rapidly cleaned, and the cleaning efficiency is improved while automatic cleaning is achieved.
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