Smoke online detection device

Abstract

The invention relates to an on-line smoke detection device. The on-line smoke detection device comprises an optical detection part, a detection probe and a mounting flange, wherein the optical detection part is fixedly connected with the detection probe through the mounting flange, and can be detachably fixed on a smoke passage; the detection probe comprises a cylindrical ceramic liner tube; the front end of the ceramic liner tube is provided with an Ar forced-air inlet; the wall of the front end of the ceramic liner tube is provided with a smoke sampling inlet; the ceramic liner tube is successively provided with a first transparent filter sheet, a second transparent filter sheet and a third transparent filter sheet along the length direction from the front end to the tail end; an optical glass sheet is arranged near the tail end of the ceramic liner tube. The on-line detection device disclosed by the invention is capable of preventing smoke dust from falling on the optical glass sheet and also can alleviate the influence to the distribution of detected gas, so that the smoke content of smoke in various atmospheres can be accurately measured.

Description

technical field [0001] The invention relates to the technical field of on-line detection of smoke, and more specifically, the invention relates to a device for on-line detection of smoke. Background technique [0002] China is a big coal producing country and a big coal burning country. In China's energy structure, coal accounts for nearly 70%, and this coal-based energy structure will not undergo major changes in the short term. The main components of coal are carbon, hydrogen, oxygen, nitrogen, sulfur, ash and water. The flue gas produced by coal combustion contains a large amount of sulfur oxide gases, nitrogen oxide gases, hydrocarbons, carbon oxides, and fly ash. , the ecological environment and the human body have caused extremely serious harm. Therefore, in view of the characteristics of the above-mentioned coal resources and the major demand for efficient and clean utilization, the control of coal-burning pollutants is the only way to achieve coordination between ...

AI Technical Summary

Problems solved by technology

The traditional dust-proof measure is the dust-proof method of blowing to prevent the dust from falling on the optical window to achieve the effect of dust removal; however, when the dust-proof method is adopted, the clean air forming the air curtain will continue to flow from the detection probe to the inside of the flue. Directional flow may have a certain impact on the distribution of the measured gas, thereby affecting the accuracy of the test results

Images