Exhaust pollutant monitoring and purifying device

Abstract

The invention belongs to the technical field of diesel engine tail gas treatment devices, and discloses an exhaust pollutant monitoring and purifying device. The exhaust pollutant monitoring and purifying device comprises a first pipeline, a first catalyst, a second pipeline, a second catalyst, a third pipeline, a process ECU, HMI equipment and main control equipment. According to the invention, aiming at the characteristics of diesel engine hot test bench frames, exhaust purification devices are arranged on smoke exhaust branch pipes of each frame in a diesel engine laboratory; and by adoption of a centralized control and distributed implementation mode, the working state of each set of exhaust purification devices is flexibly controlled according to the actual working load of the laboratory, so the pollutant control cost is reduced on the premise that the requirements of industrial pollutant emission laws and regulations are met.

Description

technical field [0001] The invention relates to the technical field of diesel engine tail gas treatment devices, in particular to an exhaust pollutant monitoring and purification device. Background technique [0002] The diesel engine test runs through the entire diesel engine R&D and production process. During the test period, the environmental pollution problems caused by the exhaust emissions of the diesel engine bench also arise. According to the requirements of relevant regulations, it is necessary to monitor the amount of pollutants in the flue through the bench after-treatment device. [0003] The diesel engine hot test bench has the following characteristics: [0004] 1. Multiple benches share one exhaust flue. According to the different usage rates of the benches, the exhaust volume in the flue and the concentration of pollutants vary widely; [0005] 2. According to different test conditions, the exhaust frequency in the flue is also different. If it is a durabil...

AI Technical Summary

Problems solved by technology

[0010] The disadvantages of the existing exhaust gas treatment devices for vehicles are that the exhaust gas treatment capacity is relatively weak, the system back pressure is high, and it cannot meet the treatment requirements of the full-type diesel engine test on the bench, and it does not have the ability of human-computer interaction

The disadvantage of the existing exhaust flue tail gas treatment device is that the device is highly complex, suitable for treating continuous high-concentration and large-flow tail gas, and the cost of manufacturing, installation and use is too high

[0011] Therefore, according to the exhaust characteristics of the diesel engine test bench, the vehicle exhaust gas treatment device and the exhaust flue gas treatment device do not meet the application requirements, and new devices need to be developed to realize the exhaust pollutant monitoring and purification functions of the diesel engine test bench

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