Working principle of plasma igniter

This generator is a magnetically stable air carrier plasma generator, which consists of a coil, a cathode and an anode. The cathode material is made of high-conductivity metal material or non-metal material. The anode is made of metal materials with high electrical conductivity, high thermal conductivity and oxidation resistance. They are all water-cooled to withstand the high temperature impact of the arc. The coil has the ability to withstand 2000V DC voltage breakdown at a high temperature of 250°C. The power supply adopts full-wave rectification and has constant current performance. The arc drawing principle is: first set the output current. When the cathode 3 advances in contact with the anode 2, the entire system has the ability to withstand short circuits and the current is constant. When the cathode slowly leaves the anode, the arc is pulled down by the magnetic force of the coil. Out of the nozzle. Air at a certain pressure is ionized into high-temperature plasma under the action of an electric arc, and its energy density is as high as 105-106W/cm2, which creates good conditions for igniting different coal types.

DC power supply cabinet-provide the DC power required by the plasma generator; AC input: 380V, 150KVA; DC output: 250～350A

Cooling water-cooling the anode, cathode and other parts of the plasma generator; 8t/h, <35℃, demineralized water, pressure difference between feed and return water> 0.2MPa

High pressure air-provide the medium required by the plasma generator to generate plasma; clean, ~0.01MPa, 150Nm3/h

Fire detection probe and flame TV-monitor the burning status of plasma burner

Operation interface-operation via touch screen or DCS.