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esp insulatoris one of the critical parts of an insulator and helios is a proven source for the same. The range of insulators covered by helios includes the following: -
the porcelain and high aluminainsulator for espmanufactured and supplied by helios ensures: -
normally the clients want the insulators to be supplied immediately as and when the need arises. As such, we maintain a regular stock of the common designs and can supply them at a days notice.
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.
One electrical field of an electrostatic precipitator is by itself an independent precipitator and within the field, each Gas passage is also an independent ESP. Its operation is governed by the inlet gas and dust conditions, as well as the collecting plate and discharge electrode geometries. As such, creating similar gas and dust conditions in each field and gas passage is of prime importance.Gas Distribution Devicesplay a vital role to achieve this.
Gas Distribution Devices consist ofturning vanes in the inlet ductwork, andperforated gas distribution platesin the inlet and/or outlet fields of the precipitator. These Screens are of modular design manufactured out of Steel sheets and hang within a frame work in the ESP inlet casing to maintain uniform distribution pattern of gas flow throughout the cross section of ESP.
Helios is a preferred source for Gas Distribution Screens required for the ESP's. Apart from the Gas Distribution Screens, Helios is also experienced in carrying ourGas Distribution Teststo understand the present Gas Flow in the ESP with a view to optimize the same to the extent possible.
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: -