Product Introduction of Dixing Radial Heat Pipe Heat Recovery
1. Product Overview
The Dixing Radial Heat Pipe Heat Recovery Unit is a high-efficiency waste heat recovery equipment independently developed by Beijing Detian Dixing Technology Development Co., Ltd., specially designed for industrial flue gas waste heat recovery scenarios. Through innovative radial heat pipe technology, this unit can efficiently recover waste heat from flue gas and convert it into hot water. It is widely used in industrial production links such as automotive spraying and welding, helping enterprises achieve energy conservation, carbon reduction, and energy recycling.
2. Core Structure and Working Principle
The radial heat pipe adopts a unique **large-tube-inside-small-tube** structure, mainly composed of an outer tube, an inner tube, and fins:
– The space between the outer and inner tubes is filled with liquid working fluid, and both ends are welded with headers to form a closed space;
– The inner side of the inner tube is a water channel, which is arranged in a U-shape and connected to an external header.
Working Process:
When high-temperature flue gas washes over the outer tube, heat is transferred to the liquid working fluid between the outer and inner tubes. The working fluid vaporizes after absorbing heat and transfers the heat to the hot water inside the inner tube. After releasing heat, the working fluid condenses into a liquid state and can absorb heat from the outer tube again, forming a continuous endothermic-exothermic cycle to achieve efficient waste heat recovery.
Temperature Characteristics:
The inner tube wall is an isothermal tube wall, and its temperature depends on the evaporation and condensation temperature of the heat pipe working fluid. The temperature distribution along the tube length (from hot water inlet to outlet) satisfies: outer tube wall temperature (t₁) > heat pipe internal working fluid temperature (t₂) > inner tube wall temperature (t₃) > internal hot water temperature (t₄), ensuring efficient heat transfer.
3. Unit Structure and Features
The Dixing Radial Heat Pipe Heat Recovery Unit adopts a modular and integrated design, with the main structural features including:
- Multi-interface Design: Equipped with exhaust ports, flushing ports, and sewage discharge ports for convenient equipment maintenance and medium discharge;
- Convenient Maintenance: A maintenance manhole is provided for easy internal inspection and maintenance;
- Efficient Heat Exchange: Indirect heat exchange between flue gas and hot water is realized through radial heat pipes, eliminating the risk of cross-contamination;
- Stable and Reliable: The equipment shell is made of anti-corrosion material, adapting to complex industrial working conditions.
4. Typical Application Scenarios
This unit is mainly used for high-temperature flue gas waste heat recovery in industrial production. Typical scenarios include:
- Automotive manufacturing: waste heat recovery from flue gas in spraying workshops and welding workshops;
- Coating industry: waste heat utilization from exhaust gas in drying processes;
- Other industries: energy-saving renovation in high-temperature flue gas emission scenarios.
5. Application Cases
The Dixing Radial Heat Pipe Heat Recovery Unit has been successfully applied in multiple benchmark projects in various industries, including:
- Shenyang Midas Spraying Workshop
- Changchun FAW-Volkswagen Spraying Workshop
- Changan Automobile Baoding Spraying Workshop
- Changchun Volkswagen Spraying Workshop (Changchun No.1 Factory AU516 Welding Workshop)
Verified through practical applications, this unit can effectively recover flue gas waste heat, significantly reduce enterprise energy consumption, and provide reliable solutions for industrial energy conservation and carbon reduction.