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Device and method for detecting Ringelmann blackness of diesel engine tail gas

A technology of diesel engine and detection device, which is applied in measurement device, color/spectral characteristic measurement, instrument and other directions, can solve the problems of inaccurate detection technology of diesel engine exhaust gas and complicated testing principle, and achieve simple and feasible detection, simplified structure and detection. Process and measurement results are accurate

Inactive Publication Date: 2021-06-15
NANHUA INSTR CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a diesel engine exhaust Ringelmann blackness detection method and device to overcome the defects of inaccurate diesel engine exhaust detection technology or complicated testing principles

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  • Device and method for detecting Ringelmann blackness of diesel engine tail gas
  • Device and method for detecting Ringelmann blackness of diesel engine tail gas
  • Device and method for detecting Ringelmann blackness of diesel engine tail gas

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0035] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0036] According to the first aspect of the present invention, a method for detecting Ringelmann blackness of diesel engine exhaust is provi...

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Abstract

The invention relates to the technical field of engine emission detection, and especially relates to a method and a device for detecting the Ringelmann blackness of diesel engine tail gas. The method comprises the following steps: generating parallel light rays perpendicular to the tail gas flowing direction in a detection area; collecting first illumination data, wherein the first illumination data are electrical parameters converted after parallel light penetrates through the tail gas; and determining the Ringelmann blackness of the tail gas in the detection area according to the first illumination data and preset reference parameters. The device comprises a smoke guide pipe, a plane light source, a photoelectric sensing array and a processor. According to the invention, the Ringelmann blackness of the tail gas is reflected through the light attenuation degree of the parallel light rays by taking the parallel light rays as reference, a light supplementing device and an illuminance sensing device do not need to be arranged, the structure and the detection process of the device are simplified, the detection is simpler and more feasible, the measurement method is simple, and the measurement result is accurate.

Description

technical field [0001] The invention relates to the technical field of engine emission detection, in particular to a method and device for detecting Ringelmann blackness of diesel engine exhaust. Background technique [0002] Exhaust gas emitted by machinery or vehicles powered by diesel engines contains a large amount of pollutants, which seriously affects people's living environment and health. As the country pays more and more attention to environmental protection, the emission standards of machinery and vehicles powered by diesel engines are becoming more and more stringent. In the prior art, the Ringelmann blackness is generally used to judge whether there is excessive emission in the exhaust gas of a diesel engine. At present, most domestic Ringelmann blackness detection devices for diesel engines are subjective analog detection instruments, and their test accuracy and reliability are difficult to guarantee. [0003] In order to solve the above-mentioned technical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/17G01N21/27G01N21/01
CPCG01N21/17G01N21/27G01N21/01
Inventor 郭文霏苏启源黎居扬
Owner NANHUA INSTR CO LTD
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