High-efficiency energy-saving industrial furnace tube hot processing equipment

By using a tiered waste heat recovery design, the contact area between the exhaust gas and the air and cooling water is increased, and the flow path is extended, which solves the problems of excessive heat exchange in the high-temperature section and heat waste in the low-temperature section, and realizes efficient and energy-saving furnace tube heat treatment.

CN224285462UActive Publication Date: 2026-05-26JIANGSU HENGYANG METALLURGICAL SCI & TECH CO LTD
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Patent Information

Application Number
CN202521077857.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2026-05-26
Estimated Expiration
2035-05-29

AI Technical Summary

Technical Problem

In existing industrial furnace tube heat treatment equipment, the sensible heat of high-temperature exhaust gas is not effectively utilized, resulting in excessive heat exchange in the high-temperature section and heat waste in the low-temperature section. In addition, the exhaust gas has high flow resistance and uneven distribution, leading to insufficient heat exchange and energy waste.

Method used

The system adopts a tiered waste heat recovery design, which increases the contact area between the exhaust gas and the air and cooling water through structures such as guide fins, guide plates and heat exchange tubes, extends the flow path and improves the heat exchange efficiency. The system also achieves stable flow and full heat exchange of the exhaust gas through a multi-stage recovery device.

Benefits of technology

It significantly improved the utilization rate of waste heat, reduced the overall energy consumption of furnace tube hot processing, and achieved a highly efficient and energy-saving hot processing process.

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Abstract

The utility model relates to the technical field of furnace tube processing, in particular to efficient and energy-saving industrial furnace tube hot processing equipment which comprises a supporting base, a heating hearth is fixedly connected to the supporting base, a combustor is arranged on the inner wall of the heating hearth, an air outlet is formed in the top of the heating hearth, and the air outlet is connected with a primary recovery furnace through a flow guide pipe. One end of the guide pipe close to the air outlet is fixedly connected with a collector. When hot working treatment is carried out on the furnace tube, high-temperature waste gas generated by a combustor is utilized in the first-stage recovery furnace, an axial flow fan drives air to flow reversely, the contact area is increased through flow guide fins, the heat exchange efficiency is improved, a second-stage recovery box utilizes a flow guide plate and flow guide ribs, the waste gas flowing path length and the turbulence degree are increased, the heat exchange time is prolonged, and the heat exchange efficiency is improved. The three-stage recovery furnace exchanges heat with cooling water through a plurality of heat exchange pipes, and the stepped waste heat recovery design is utilized, so that the waste heat utilization rate is increased, the comprehensive energy consumption in the furnace tube hot working process is reduced, and high efficiency and energy conservation of furnace tube hot working are achieved.
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