Single heat storage burner is an efficient and energy-saving combustion device. Its core principle is to recover the waste heat of flue gas through heat storage body and preheat the combustion air (or gas) to achieve high temperature and low oxygen combustion.

The following is a detailed analysis of its working principle:

1. Basic Structure and Workflow-Heat Storage Body: Typically composed of ceramic honeycomb or spherical heat storage materials, it features high specific surface area and thermal capacity for heat storage and release.

-Directional Switching System: Through periodic airflow direction switching (typically every 30 seconds to minutes), the burner operates in alternating combustion/exhaust states.

-Working Cycle: -Combustion Phase: Gas mixes with preheated combustion air (up to 1000℃) for combustion, while high-temperature flue gas is discharged after heat dissipation through the opposite side's heat storage body.

-Heat Storage Phase: After airflow direction switching, the high-temperature flue gas flows through the heat storage body, storing heat in the ceramic medium while preheating cold air.

2. Key Thermodynamic Principles

-Waste Heat Recovery Rate: The thermal storage medium can recover over 80% of the residual heat from flue gas, significantly improving thermal efficiency (saving 30%-50% energy compared to traditional burners).

-High-Temperature Air Combustion Technology: The preheated combustion air maintains temperatures close to the fuel ignition point, accelerating reaction rates and ensuring uniform flame temperature distribution while reducing localized high-temperature zones.

3. Combustion Characteristics and Advantages-Low Oxygen Combustion: With higher air preheating temperatures, the actual oxygen requirement is reduced.

The combustion process occurs at low oxygen concentrations (5%-10%), effectively suppressing NOx formation for environmental benefits.

-Flame Morphology: Creates a large-volume, temperature-uniform "flameless combustion" that avoids localized high temperatures of traditional flames, thereby reducing workpiece oxidation.

4. Application scenarios

-Industrial furnaces: such as steel rolling heating furnace, glass melting kiln, ceramic sintering furnace and other high temperature processes.

-Energy saving transformation: suitable for equipment that needs frequent start-stop or intermittent production, heat storage body can quickly respond to temperature changes.

5. Technical challenges-Heat storage life:

-Ceramic materials need to withstand rapid cooling and heating, and are prone to thermal stress cracking.

-System control: The commutation frequency and air-fuel ratio need to be accurately matched to avoid gas leakage or unstable combustion.

Supplementary note: The difference between single regenerative heat storage and double regenerative heat storage (simultaneous preheating of air and gas) is that the latter can further improve energy efficiency, but the system is more complex. The current technology trend is to combine intelligent control algorithm to optimize the switching strategy, and further reduce energy consumption.