A system and method for diagnosing filter bag damage using laser radar

Abstract

The invention relates to a dust concentration abnormality monitoring device, and aims to provide a system and method for diagnosing filter bag damage by using laser radar. The system includes a laser emitting unit, a receiving and detecting unit, and a control and imaging unit; the laser emitting unit includes counters, laser drive circuits, pulse lasers and collimating lenses arranged in sequence; the receiving and detecting unit includes lens barrels, mirrors, filters and chip and detector array; the pulse laser, laser drive circuit and counter are sequentially connected to the control and imaging unit through signal lines, and the detector array is connected to the control and imaging unit through signal lines; the control and imaging unit includes a digital-to-analog signal converter and a computer. The invention can be used for real-time monitoring of the bag dust removal cabin, does not miss and falsely report the damaged filter bag, and does not affect the daily operation of the waste incineration power plant at all. The system has simple operation, small maintenance workload, short monitoring time, strong feedback ability and high efficiency, which can effectively avoid missed detection.

Description

technical field [0001] The invention relates to a dust concentration abnormality monitoring device, in particular to a system and method for diagnosing filter bag damage by using laser radar. Background technique [0002] The production activities of modern people are often accompanied by the production of a large amount of gas pollutants and particle pollutants. In order to prevent these pollutants from being directly discharged into the atmosphere and endangering human health and the ecological environment, dust removal equipment will be installed in the industrial process to reduce the emissions into the atmosphere. Among them, the bag filter is one of the more reliable, effective and commonly used dust removal equipment. The bag filter has been widely used in flue gas dust removal in steel, cement, electric power, chemical industry, waste incineration and other industries. The core component, the filter bag, is subject to mechanical impact and flue gas corrosion during ...

AI Technical Summary

Problems solved by technology

However, for the relatively narrow bag filter cabin, the installation cost and maintenance cost are significantly high, and at the same time, it will affect the gas flow in the cabin, and there are a series of disadvantages, so it is not suitable for the leakage monitoring of the bag filter room of the waste incineration power plant

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