一种空气预热器的应急修复方法及修复结构
By sealing the damaged heat exchange tubes in the air preheater and constructing a flue gas bypass pipe, the air leakage problem caused by large-area damage to the heat exchange tubes was solved, achieving rapid and low-cost repair, restoring boiler production capacity and reducing power consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SGIS SONGSHAN CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the serious air leakage problem caused by large-area damage to the heat exchange tubes of the air preheater is addressed by traditional repair methods, which are time-consuming, costly, and unable to quickly restore production.
By sealing the damaged heat exchange tubes on the tube sheet of the air preheater and constructing a flue gas bypass pipe, a flue gas bypass is formed to bypass the damaged tube bundle, ensuring flue gas flow rate and velocity. A large-diameter straight pipe is used as the bypass pipe, and the design flow rate is higher than that of the original heat exchange tube, thus achieving rapid repair.
It can complete repairs in a short time, reduce material and labor costs, eliminate air leaks, restore the boiler's load-bearing capacity, reduce induced draft fan power consumption, and is suitable for a variety of shell-and-tube heat exchange equipment.
Smart Images
Figure CN121089074B_ABST