Helios Infrapro Private Limited

New Alipore, Kolkata, West Bengal

Emitting Electrodes, also knows as Discharge Electrodes is the heart os the ESP. These are High Voltage internal and ionizes the gases and creates the electrical field. When the voltage breaks the gas down at the surface of the electrode, it generates corona power. This leads to creation of corona tufts on the surface of the electrode. Negative polariy voltage is applied to the electrode.The electrode design depends on various factors including the process for which the ESP is installed and the properties and composition of the flue gas.Types of Emitting Electrodes: For the corona generation, initially thin and round wires were installed. In some cases, twisted, barbed or square wires were also used.Nowadays, mostly rigid support frames are used for the electrodes. Frames may consist of spiral-spring electrodes, serrated strips, or needle spikes mounted on a support strip. Rigid type electrodes are also used in some applications, which is made from a single piece of fabricated metal.

Emitting Electrodes, also knows as Discharge Electrodesis the heart os the ESP. These are High Voltage internal and ionizes the gases and creates the electrical field. When the voltage breaks the gas down at the surface of the electrode, it generates corona power. This leads to creation of corona tufts on the surface of the electrode. Negative polariy voltage is applied to the electrode.

The electrode design depends on various factors including the process for which the ESP is installed and the properties and composition of the flue gas.

Types of Emitting Electrodes:For the corona generation, initially thin and round wires were installed. In some cases, twisted, barbed or square wires were also used.Nowadays, mostly rigid support frames are used for the electrodes. Frames may consist of spiral-spring electrodes, serrated strips, or needle / spikes mounted on a support strip. Rigid type electrodes are also used in some applications, which is made from a single piece of fabricated metal.

Heliosmanufactures and suppliesEmitting / Discharge Electrodesfor Electrostatic Precipitators of all designs and makes. Raw material used for the manufacturing directly impacts the life and durabity of the Electrodes. The finish of the product greatly affects the corona generation and overall performance of the ESP. As such, proper care is taken in the manufacturing of each and everyEmitting Electrodeas well as the packing of the finished materials.

• Spiral Emitting Electrodes
• Pipe and Spike Type Electrode
• Multi-peak Discharge Electrodes
• Straight Round Wires
• Twisted pairs of Wires
• Barbed Discharge Wires
• Rigid masts
• Rigid frames

Collecting Electrodes are the collection surface made of sheet metal on which the particulate mater is collected after being negatively charged within the gas passage of the ESP. Designs of the plates vary from manufacturer to manufacturer. These plates are secured to the ESP shell at ground potential and serve as the positive anode of the gas passage.

General details of the Collecting Plates are given below: -

• Raw Material:Normally the Collecting Plates are made of Carbon Steel. However, for some applications where carbon steel made plates are corroded regularly, these are manufactured with stainless steel or an alloy steel.
• Sheet Thickness:The thickness of the collecting plates range from 0.5 to 2.0mm.
• Spacing:The spacing between the plates vary for different designs of ESP. For example, ESPs with wire type of emitting electrodes, plates are spaced from 150 to 300mm apart. High-efficiency ESPs (using wires) has spacing of 200 to 230 mm. ESPsusingrigid-frameor plate typedischarge electrodeshave a spacing of 300 to 400 mm betwee the plates.
• Height: Collecting Plates are normally 6 to 14M high.