süüteelemente

Süüteelemente, also called ignition elements, are components that initiate and sustain combustion in various equipment. They are used to start burners, furnaces, and some engines by providing a flame or hot surface that ignites the fuel–air mixture. The main categories are electrical ignition elements, hot-surface ignition elements, and pilot burners.

Electrical ignition elements generate a spark or electrical arc at the point where the fuel–air mixture is present. They are common in gas appliances and some engines and are controlled by ignition modules and safety sensors.

Hot-surface ignition elements rely on a resistive heating element, often made from silicon carbide or similar ceramic materials, to reach a high temperature. When the fuel–air mixture contacts the heated surface, ignition occurs without a visible flame.

Pilot burners provide a small, continuous flame that remains lit to ignite the main burner when needed. Pilot systems are common in older installations and in some industrial applications.

Materials and construction: electrical igniters use protected electrodes and insulation; hot-surface igniters use durable ceramics and protective coatings; pilot burners require proper gas fittings and flame supervision devices.

Performance and safety: key considerations include response time, reliability, maximum operating temperature, and compatibility with fuel type. Failures can cause delayed ignition, flameout, or gas leaks. Modern systems often include flame sensors and automatic shutoff to enhance safety.

Maintenance: regular inspection, cleaning of deposits, and timely replacement of worn elements help maintain reliable ignition.