In-vehicle odor source detection method

A detection method and technology of odor source, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of inability to control the odor in the car, inability to analyze the odor in the car, and inability to determine the source of the odor in the car, etc.

Pending Publication Date: 2020-10-13
CRRC TANGSHAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a method for detecting the smell source in the car to solve the problem that the smell in the car cannot be ...

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Embodiment 1

[0041] Figure 1 to Figure 2 A schematic flow chart of the method for detecting odor sources in a car in this embodiment is shown, see figure 1 , the vehicle odor source detection method may include the following steps:

[0042] Step 101 , using the Tenax sampling tube to collect the air inside the sealed target vehicle, and performing thermal desorption on the air inside the vehicle collected by the Tenax sampling tube to obtain a sample of the air inside the vehicle.

[0043] In this step, the Tenax sampling tube can be used to sample the gas inside the sealed target vehicle, the sampling flow rate can be preset, and the sampling volume can be set according to actual needs, which is not limited.

[0044]Among them, the Tenax sampling tube is a stainless steel tube with polished inner wall, which is filled with one or more adsorbents. According to the density of the adsorbent, the adsorption tube can be filled with 200mg~1000mg of adsorbent, and the two ends of the Tenax sam...

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Abstract

The invention relates to the technical field of odor testing, and provides an in-vehicle odor source detection method. The method comprises the steps that a Tenax sampling tube is used for collectingan in-vehicle gas sample of a target vehicle, a first corresponding relation between a gas substance peak and retention time is obtained through a gas chromatograph-mass spectrometer for one part, anda second corresponding relation among odor intensity, odor types and retention time is determined through an olfactory discriminator for the other part; a first target gas substance in the in-vehiclegas sample is determined according to the first corresponding relationship and the second corresponding relationship; all the parts are put into a polyvinyl fluoride sampling bag, an experiment is carried out in an environment test cabin, a gas sample of each part is collected by using a Tenax sampling tube, and a second target gas substance of the gas sample of each part is determined; and the odor source part in the vehicle is determined according to the target gas substance of each part gas sample. According to the method, odor tracing of the target gas substance between the target vehicleand the internal parts can be achieved.

Description

technical field [0001] The invention belongs to the technical field of odor testing, in particular to a method for detecting odor sources in vehicles. Background technique [0002] The intuitive and obvious indicator of air quality in rail transit vehicles is the smell inside the car, and the size of the smell inside the car directly affects the passenger's evaluation of the comfort of the vehicle. The odor in the car mainly comes from the volatilization of volatile substances in interior materials and parts, and these volatile substances are usually harmful and will stimulate the sensory system of the human body, and when the concentration of volatile substances is high, it will make people feel sick , vomiting, etc., affecting human health and safety. [0003] At present, the rail transit industry has not released odor-related standards, but a series of international and domestic standards for odor testing have been released in other industries, such as VDA270, SAEJ1351, ...

Claims

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Application Information

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IPC IPC(8): G01N30/88G01N30/06
CPCG01N30/88G01N30/06
Inventor 于金朋黄雪飞兰琪孙海荣王伟潘丽宁李少华
Owner CRRC TANGSHAN CO LTD
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