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A certain number of ash particles are prone to be taken away in thermal power plants with the boiler’s exhaust air. These ash particles are gravitationally caught in the boiler’s economizer to stop them from being exhausted out of the stack.
The Electrostatic Precipitators (ESP) below them have high peak voltages of 71 KV to polarise the Fly-Ash Particles, yet a significant amount of the Fly-Ash Particles that cannot be captured in the Economizer are gathered in the ESP Hoppers. As a result, Fly-Ash is gathered in a number of hoppers beneath the ESPs. De-ashing is done after a set amount of time in order to prevent over-spilling of Fly-ash from these hoppers.
However, due to the fact that the de-ashing operation frequently occurs after the predetermined interval even when the hopper is not completely filled with Fly-ash, this procedure uses a lot of energy.
The de-ashing system’s moving parts also cause a lot of wear and tear. In order to control the High and Low Level of Fly-ash in the ESP Hoppers and initiate the emptying process only when the pre-set maximum Level is reached, this necessitates the use of an automatic level detection system.
This avoids the accumulation of ash particles in the area of the High Voltage Plates where accumulation could, especially in humid conditions, result in a short circuit between the collecting plate and the electrode, resulting in the destruction of the plate arrangement and the electrical apparatus.
The Global ash level sensor market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
The NOGS Sensor, which measures the trace levels of natural radionuclides contained in the Fly Ash and is based on “NOGS” -ray detection technology, is commonly used for continuous level assessment of ESP Fly Ash Hoppers. It is capable of efficiently extracting the little variations in gamma rays detected by a device using random signal recognition technology.
The NOGS Sensor features a dedicated built-in processor that can efficiently separate the fly ash’s gamma ray from other background noises before translating the strength of the gamma ray to accurate material level measurement.
The most sophisticated continuous level measurement tool for ESP Fly Ash Hoppers is the NOGS Sensor (Naturally Occurring Gamma Ray Sensor). When it comes to measurement accuracy and upkeep, the instrument is truly an operator’s dream because it is installed outside the Hopper Plate without any cut off or shut down for the ESP Hopper.
