System and method for diagnosing filter bag damage by laser radar

Abstract

The invention relates to a dust concentration abnormity monitoring devices, and aims to provide a system and a method for diagnosing filter bag damage by a laser radar. The system comprises a laser emission unit, a receiving and detection unit and a control and imaging unit; the laser emission unit comprises a counter, a laser driving circuit, a pulse laser and a collimating lens which are arranged in sequence; the receiving and detection unit comprises a lens cone, a reflecting mirror, a filter and a detector array which are arranged in sequence; the pulse laser, the laser driving circuit andthe counter are sequentially connected to the control and imaging unit through a signal line, and the detector array is connected to the control and imaging unit through a signal line; the control and imaging unit comprises a digital-to-analog signal converter and a computer. The system and method provided by the invention can be used for monitoring a bag dust removal cabin in real time, the phenomena of missing and false report of damaged filter bag are avoided, and the daily operation of a waste incineration power plant is not influenced at all. The system is simple to operate, the maintenance workload is small, the monitoring time is short, the feedback capability is strong, the efficiency is high, and missing detection is effectively avoided.

Description

technical field [0001] The invention relates to an abnormal monitoring device for dust concentration, in particular to a system and method for diagnosing the damage of filter bags by using laser radar. Background technique [0002] The production activities of modern people are often accompanied by the production of a large number of gaseous pollutants and particulate pollutants. In order to prevent these pollutants from being directly discharged into the atmospheric environment and endanger human health and the ecological environment, dust removal equipment will be installed in the industrial process to reduce emissions into the atmosphere. Among them, the bag filter is one of the more reliable, effective and commonly used dust removal equipment. At present, 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...

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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