Gas heating furnace with double spiral densely-arranged pipes
The flue gas is guided by the air guide column and the air guide spiral blades, and the gas is preheated by the preheating box, which solves the problems of low contact efficiency and heat waste of the inner spiral coil and realizes efficient gas heating and heat utilization.
CN223319271UActive Publication Date: 2025-09-09NANJING GUOQI NEW ENERGY EQUIP
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Patent Information
- Application Number
- CN202422794418.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-16
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-16
AI Technical Summary
Technical Problem
In the existing double-helix close-packed tube gas heating furnace, the inner space of the inner spiral coil is large, the high-temperature flue gas contact efficiency is low, and the heat of the exhaust flue gas is not fully utilized, resulting in heat waste.
Method used
The flue gas is guided by air guide columns and air guide spiral blades so that it contacts the inner side of the inner spiral coil, and the residual heat in the preheating box is used to preheat the gas, thereby improving the heating efficiency and utilizing the heat of the flue gas.
Benefits of technology
The heating efficiency of the inner and outer spiral coils is improved, heat waste is reduced, and effective utilization of flue gas heat is achieved.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a gas heating furnace with double spiral densely-arranged pipes, which belongs to the technical field of heating furnaces and comprises a heating furnace box, an inner spiral coil pipe is arranged at the bottom of an inner cavity of the heating furnace box, an outer spiral coil pipe is arranged on the outer side of the inner spiral coil pipe, and a gas outlet end of the inner spiral coil pipe is connected with a gas inlet end of the outer spiral coil pipe. And the air outlet end of the outer spiral coil extends out of the heating furnace box and is provided with an outlet header. According to the utility model, when high-temperature flue gas is guided into the inner side of the inner spiral coil, the flue gas is guided by using the gas guide column and the gas guide spiral blade, so that the flue gas moves upwards along the inner side of the gas guide spiral blade, and meanwhile, the flue gas is in contact with the inner side surface of the inner spiral coil, so that the flue gas is prevented from directly moving upwards from the inner side of the inner spiral coil; and the heat exchange effect of the flue gas and the inner spiral coil pipe is influenced.
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