Burner ignition electrode

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Burner ignition electrode

The ignition electrode of the burner is a key component to ensure the safe and stable start-up of the kiln. Its design should adapt to the working environment of high temperature, rapid ignition and frequent start and stop.
Characteristics of the ignition electrode of a burner
Fast ignition: The kiln usually needs to heat up quickly, and the electrode needs to produce a stable spark in 1-2 seconds.
High temperature resistant: the electrode should be made of heat resistant material.
Anti-pollution: Wood or gas combustion may produce carbon deposits or tar, and the electrode should be easy to clean or have self-cleaning design.
Shape: Straight rod or L-shaped, easy to install and avoid direct flame flushing.
Insulation layer: High alumina ceramic or silicon nitride to ensure high voltage insulation.
Operational principle
High voltage discharge: The ignition transformer (5~15kV) generates an electric spark to ignite the gas/air mixture.
Ignition sequence: Air first → electrode discharge → gas valve open to ensure safe ignition.
Spark energy: Natural gas needs 3~5mJ, liquefied gas needs slightly higher energy.
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Description

The ignition electrode of the burner is a key component to ensure the safe and stable start-up of the kiln. Its design should adapt to the working environment of high temperature, rapid ignition and frequent start and stop.

Characteristics of the ignition electrode of a burner

Fast ignition: The kiln usually needs to heat up quickly, and the electrode needs to produce a stable spark in 1-2 seconds.

High temperature resistant: the electrode should be made of heat resistant material.

Anti-pollution: Wood or gas combustion may produce carbon deposits or tar, and the electrode should be easy to clean or have self-cleaning design.

Shape: Straight rod or L-shaped, easy to install and avoid direct flame flushing.

Insulation layer: High alumina ceramic or silicon nitride to ensure high voltage insulation.

Operational principle

High voltage discharge: The ignition transformer (5~15kV) generates an electric spark to ignite the gas/air mixture.

Ignition sequence: Air first → electrode discharge → gas valve open to ensure safe ignition.

Spark energy: Natural gas needs 3~5mJ, liquefied gas needs slightly higher energy.

Product Parameter
Type:	Single electrode
Features:	Simple structure, low cost
Gas type:	Natural gas electrode gap is slightly larger than liquefied gas.
Spark gap:	Usually 2~4mm, which needs to be adjusted according to the type of gas (natural gas/LPG).
Installation position:	Avoid the direct spray area of the flame, usually 30~50mm away from the burner nozzle.
Insulation layer:	High aluminum ceramic or silicon nitride to ensure high voltage insulation.