Today, we'll share the performance and working principles of several combustion burners. We hope you'll find it helpful!
1.1 Sleeve-Type Metal Burner
Older internal combustion engines used metal burners. Due to the use of horizontally arranged concentric sleeves, air easily enters the fire, resulting in poor mixing and severe pulsating combustion.
1.2 Sleeve-Type Ceramic Burner
The empty gas passage and nozzle are made of refractory material. Gas is injected from the central nozzle, and the combustion air is divided into small streams by multiple nozzles in the outer ring, which are then injected at a certain angle and high speed onto the central stream, allowing for good mixing of gas and air. The high-temperature zone at the end of the flame is at the top of the hot blast stove arc.
1.3 Grid-Type Ceramic Burner
Burner manufacturers have discovered that after the air and gas form separated interphase channels at the bottom of the burner and reach the top, they are divided into fine streams by the grid, achieving better air-gas mixing. Sleeve-type burners are widely used in external combustion hot blast stoves.
1.4 Premixed Ceramic Burner
The premixed ceramic burner is a high-performance external premixed short-flame burner. It has fewer burners and higher output. It burns tangentially along the periphery of the dome. High temperatures are concentrated near the burner, easily damaging the burner blocks. Numerical simulation experiments show the characteristics of the combustion airflow and temperature distribution: the high-temperature flue gas vortexes downwards along the dome tangent into the corrugated bricks; the high-temperature flue gas velocity varies significantly across the corrugated brick surface, with higher velocities at the edges and average. The surface temperature distribution of the corrugated bricks is less uneven, with higher temperatures at the edges and lower temperatures at the center, resulting in lower utilization of the central corrugated bricks.
1.5 Non-Premixed Ceramic Burner
The non-premixed ceramic burner is a flat vortex burner. The air ring is at the top and bottom. The air gas is divided into fine streams by the nozzle and injected at high speed, forming a planar vortex that flows through the throat into the conical dome space and burns during mixing. The airflow at the center of the burner directly enters the corrugated bricks; the high-temperature flue gas distribution on the upper surface of the corrugated bricks has higher velocities at the edges and lower velocities at the center.
Today, we'll share the performance and working principles of several combustion burners. We hope you'll find it helpful!
1.1 Sleeve-Type Metal Burner
Older internal combustion engines used metal burners. Due to the use of horizontally arranged concentric sleeves, air easily enters the fire, resulting in poor mixing and severe pulsating combustion.
1.2 Sleeve-Type Ceramic Burner
The empty gas passage and nozzle are made of refractory material. Gas is injected from the central nozzle, and the combustion air is divided into small streams by multiple nozzles in the outer ring, which are then injected at a certain angle and high speed onto the central stream, allowing for good mixing of gas and air. The high-temperature zone at the end of the flame is at the top of the hot blast stove arc.
1.3 Grid-Type Ceramic Burner
Burner manufacturers have discovered that after the air and gas form separated interphase channels at the bottom of the burner and reach the top, they are divided into fine streams by the grid, achieving better air-gas mixing. Sleeve-type burners are widely used in external combustion hot blast stoves.
1.4 Premixed Ceramic Burner
The premixed ceramic burner is a high-performance external premixed short-flame burner. It has fewer burners and higher output. It burns tangentially along the periphery of the dome. High temperatures are concentrated near the burner, easily damaging the burner blocks. Numerical simulation experiments show the characteristics of the combustion airflow and temperature distribution: the high-temperature flue gas vortexes downwards along the dome tangent into the corrugated bricks; the high-temperature flue gas velocity varies significantly across the corrugated brick surface, with higher velocities at the edges and average. The surface temperature distribution of the corrugated bricks is less uneven, with higher temperatures at the edges and lower temperatures at the center, resulting in lower utilization of the central corrugated bricks.
1.5 Non-Premixed Ceramic Burner
The non-premixed ceramic burner is a flat vortex burner. The air ring is at the top and bottom. The air gas is divided into fine streams by the nozzle and injected at high speed, forming a planar vortex that flows through the throat into the conical dome space and burns during mixing. The airflow at the center of the burner directly enters the corrugated bricks; the high-temperature flue gas distribution on the upper surface of the corrugated bricks has higher velocities at the edges and lower velocities at the center.