Preposed sample gas treatment device of hot-air heating type diesel vehicle discharged sewage analyzer

A processing device and analyzer technology, applied in the field of pollutant detection, can solve the problems of detection equipment without backwashing function, long backwashing time, poor cleaning effect, etc., and achieve good heat preservation effect, good filtering effect, and uniform heating Effect

Active Publication Date: 2013-05-29
NANHUA INSTR CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, some detection equipment does not have backwashing function, or the backwashing time is long, and the cleaning effect is poor, which affects the detection efficiency and detection accuracy

Method used

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  • Preposed sample gas treatment device of hot-air heating type diesel vehicle discharged sewage analyzer

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Embodiment Construction

[0010] A pre-sample gas processing device for a diesel vehicle emission pollutant analyzer will be described in detail below with reference to the drawings and specific embodiments. In the following description, various aspects of the present invention will be described. However, those skilled in the art can implement the present invention by using only some or all of the structures or processes of the present invention. For clarity of explanation, specific numbers, arrangements and sequences are set forth, but it will be apparent that the invention may be practiced without these specific details. In other instances, well-known features have not been described in detail in order not to obscure the invention.

[0011] figure 1 It shows the structure of the pre-sample gas processing device for the diesel vehicle emission pollutant analyzer according to the embodiment of the present invention, see figure 1 , The pre-sample gas processing device of the diesel vehicle emission po...

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Abstract

Provided is a preposed sample gas treatment device of a hot-air heating type diesel vehicle discharged sewage analyzer. The preposed sample gas treatment device comprises a heating gas generation unit, a sample gas filter unit, a gas pressure regulating and oil-gas separation unit, an outer sampling probe pipeline and a sampling probe, the outer sampling probe pipeline comprises wraps and contains the sampling probe, the sampling probe is connected to the sample gas filter unit which is connected to the analyzer, the heating gas generation unit is connected with the gas pressure regulating and oil-gas separation unit which supplies heating gas to the heating gas generation unit, and the heating gas generation unit is communicated with the outer sampling probe pipeline through a heat-conducting gas pipe so as to heat the outer sampling probe pipeline and the sampling probe.

Description

technical field [0001] The invention relates to the technical field of pollutant detection, and more specifically, the invention relates to a pre-sample gas processing device for a diesel vehicle emission pollutant analyzer. Background technique [0002] With the continuous increase of the number of automobiles in our country, the exhaust gas emitted by automobiles has a great impact on the environment. At present, the exhaust pollutants of gasoline vehicles stipulated in my country are carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides (NOX). The current monitoring indicators and treatment measures have effectively controlled the exhaust pollutants of gasoline vehicles, but For diesel vehicles, only the particulate matter emitted by diesel vehicles is detected. However, diesel vehicles emit a large amount of pollutants such as nitrogen oxides (NOX). The current national standards do not detect the chemical pollutants emitted by diesel vehicles. Therefore, it is nece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/44G01N1/34
Inventor 黎鸿智郭文霏李乐文
Owner NANHUA INSTR CO LTD
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