Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A constant temperature and rapid air sampling device and its application method

A technology of air sampling and constant temperature, applied in the direction of sampling device, etc., can solve the problem of not being able to accurately reflect the real situation, and achieve the effect of effective sampling, power saving, and short gas collection time.

Active Publication Date: 2017-02-22
TONGJI UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually select another sampling point or remove this sampling point, so that it cannot accurately reflect the real situation
Therefore, effective sampling of air pollutants that cannot meet the sampling time has become a current technical problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A constant temperature and rapid air sampling device and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Sampling is carried out in order to measure the VOCs in the air in a subway car that does not last a long time in a certain state.

[0023] like figure 1 As shown, a constant temperature and rapid air sampling device, its structure includes: a particle filter 1, a first valve switch 2-1, a second valve switch 2-2, a third valve switch 2-3, a fourth valve switch 2 -4, fifth valve switch 2-5, heat insulation shell 3, pressure gauge 4, temperature sensor 5, heating wire 6, air collection bag 7, metal box 8, flexible hose 9, upper sampling pipe interface 10-1, lower Sampling pipe interface 10-2, retractable flexible hose 11, flow meter 12, sampling pump 13 and parameter setting table 14. There is a metal box 8 on the periphery of the air-collecting bag 7 made of heat-conducting material, and the volume ratio to the air-collecting bag 7 is 5:4. The heating wire 6 is evenly wound on the outer wall of the metal box 8. The diameter of the gas-collecting port can ...

Embodiment 2

[0025] Example 2: To study the relationship between traffic volume and BTEX exposure of pedestrians on sidewalks.

[0026] as attached figure 1As shown, a constant temperature and rapid air sampling device, its structure includes: a particle filter 1, a first valve switch 2-1, a second valve switch 2-2, a third valve switch 2-3, a fourth valve switch 2 -4, the fifth valve switch 2-5, heat insulation shell 3, pressure gauge 4, temperature sensor 5, heating wire 6, air collection bag 7, metal box 8, flexible hose 9, upper sampling pipe interface 10-1, lower Sampling pipe interface 10-2, retractable flexible hose 11, flow meter 12, sampling pump 13 and parameter setting table 14.

[0027] In order to measure the BTEX in the air around the sidewalk in the actual working conditions where the traffic flow changes rapidly, effective sampling is carried out. First, measure the temperature of the air around the sidewalk, simulate the same environment in the metal box of the sampler, ...

Embodiment 3

[0028] Example 3: VOCs monitoring is carried out on the high-temperature flue gas discharged from the high chimney of a certain factory.

[0029] as attached figure 1 As shown, a constant temperature and rapid air sampling device, its structure includes: a particle filter 1, a first valve switch 2-1, a second valve switch 2-2, a third valve switch 2-3, a fourth valve switch 2 -4, the fifth valve switch 2-5, heat insulation shell 3, pressure gauge 4, temperature sensor 5, heating wire 6, air collection bag 7, metal box 8, flexible hose 9, upper sampling pipe interface 10-1, lower Sampling pipe interface 10-2, retractable flexible hose 11, flow meter 12, sampling pump 13 and parameter setting table 14.

[0030] In order to effectively monitor VOCs in the high-temperature flue gas emitted by a high chimney in a factory. First measure the temperature of the flue gas at 66°C, through the temperature sensor 5, automatically control the circuit path of the heating wire 6, so that t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a constant-temperature rapid air sampling device and a using method thereof. The device disclosed by the invention is divided into three systems, namely an air buffering system, a high-efficiency sampling system and an automatic control system, wherein the air buffering system consists of a first valve switch, a second valve switch, a third valve switch, a fourth valve switch, a fifth valve switch, a heat insulation shell, a metal box, a particulate filter and a gas collection bag; the high-efficiency sampling system consists of a fourth valve switch, a telescopic flexible adapter tube, an embedded sampling pipe joint, a flexible hose and a sampling pump; and the automatic control system consists of a pressure meter, a temperature sensor, a heating wire, a flowmeter and a parameter setting meter. The device disclosed by the invention is advanced and reasonable in design structure and easy and rapid to operate, automatic control is realized, and rapid gas collection and high-efficiency sampling can be realized.

Description

technical field [0001] The invention relates to an air sampling device, in particular to a constant temperature and rapid air sampling device and a using method thereof. Background technique [0002] In recent years, the quality of atmospheric environment has received more and more attention. Sampling instruments for collecting the atmospheric environment are becoming more and more common, portable and sophisticated. The concentration of pollutants in the atmosphere is generally relatively low (ppm-ppb order of magnitude), and the direct sampling method often cannot meet the requirements of the detection limit of the analysis method. Therefore, it is necessary to use the enrichment sampling method to concentrate the pollutants in the atmosphere. However, in some special sampling environments in the air, the air state can only be maintained for a short period of time. For the adsorbent (or absorption night) of the enrichment sampling method, it often requires low-flow and l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/24
Inventor 徐斌陈玲龚宇吴娅
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com