Photographing type diesel mechanical smoke intensity detection device

Abstract

The invention relates to a detection device and aims to provide a photographing type diesel oil mechanical smoke intensity detection device. The device has the characteristics of stable and reliable detection result and high accuracy. According to the technical schemes, the photographing type diesel oil mechanical smoke intensity detection device comprises a photographing type Ringelmann smoke intensity detector. The device is characterized by further comprising a microenvironment pipeline device which is arranged on the front side of the photographing type Ringelman smoke intensity detector and is communicated with the photographing type Ringelman smoke intensity detector, and a light transmission method lightproof smoke intensity detector which is arranged on the rear side of the photographing type Ringelman smoke intensity detector and is communicated with the photographing type Ringelman smoke intensity detector.

Description

technical field [0001] The invention relates to a detection device, in particular to a diesel mechanical smoke detection device. Background technique [0002] Diesel machinery exhaust smoke detection, non-road mobile diesel machinery is implemented in accordance with GB 36886-2018 "Exhaust Smoke Limits and Measurement Methods of Non-road Mobile Diesel Machinery", and its smoke detection method refers to the national standard GB3847-2018 "Diesel Vehicle Pollution Limits and measurement methods of pollutant emissions (free acceleration method and loading deceleration method)" are implemented. The national standard GB3847-2018 "Diesel Vehicle Pollutant Emission Limits and Measurement Methods (Free Acceleration Method and Loading Deceleration Method)" is mainly used for diesel vehicle (automobile) pollution emission detection, and the detection objects are mainly nitrogen oxide content, Ringelmann The detection methods of smoke and opaque smoke (light absorption coefficient and...

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Problems solved by technology

[0004] The filter paper method and picture comparison method are commonly used in Ringelmann smoke detection. D5.1 and D5.2 in Appendix D of the national standard GB3847-2018 clarify the observation location, conditions, and observation methods. The smoke detection results of this method are affected by the weather. Random factors and people are greatly affected. For example, environments such as rainy and snowy days, foggy days, and wind speeds greater than 4.5m / s are generally not recommended, and the test results on sunny and cloudy days need to be manually adjusted based on experience. The accuracy of the test results is not enough. to further improve

[0005] When using the above instruments and equipment to detect Ringelmann smoke and opaque smoke of non-road mobile diesel machinery, there are the following deficiencies: 1. Two inspections are required; 2. Ringelmann smoke is affected by man-made, weather and environment Large impact, low data reliability; 3. According to the national standard GB 36886-2018 judgment rules, a second comprehensive judgment is required when passing the test; 4. On-site Ringelman test data must be recorded manually, which is inefficient

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