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Carbon film containing device for particulate matter sampling

A carbon film and channel technology, applied in sampling devices, measuring devices, sampling, etc., can solve the problems of easy condensation of tail gas, time-consuming, and influence of carbon film, so as to facilitate microstructure analysis, shorten sampling time, and prevent accidents. The effect of condensation

Inactive Publication Date: 2021-05-07
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The engine exhaust contains a large amount of water vapor. When directly collected, the exhaust gas is easy to condense and affect the sampling process. In the prior art, the exhaust gas is usually diluted and collected for particulate matter, but this will take a lot of time; the fixation and placement of the carbon film will also affect the sampling process. sampling effect

Method used

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  • Carbon film containing device for particulate matter sampling
  • Carbon film containing device for particulate matter sampling
  • Carbon film containing device for particulate matter sampling

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present specification in conjunction with the accompanying drawings in the embodiments of the present specification. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] It should be noted that the terms "include" and "have" in the embodiments of this specification and the drawings, as well as any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other step...

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Abstract

The invention discloses a carbon film containing device for particulate matter sampling. The containing device comprises a shell, a tail gas channel, a heating channel, a cylindrical switching part, a heater, a thermocouple, a temperature controller, a first gasket, a carbon film containing piece, a carbon film pressing plate, a switching piece and a second gasket. The tail gas channel and the heating channel are arranged in the shell. The heater is arranged in the heating channel, the cylindrical switching part is arranged at the tail part of the shell, and the first gasket is arranged at a connector of the cylindrical switching part. The carbon film containing piece is cylindrical and is provided with a groove, a threaded hole and a channel, the carbon film pressing plate is fixed to the carbon film containing piece through the threaded hole, and the adapter is used for being connected with an external pipeline. The tail gas temperature is maintained through the heating channel, the carbon film is supported and fixed through the carbon film containing piece, direct collection of tail gas particles is achieved, installation, disassembly and use are convenient, the sampling time is shortened, the sampling efficiency is effectively improved, and the device is progressive.

Description

technical field [0001] The invention relates to the technical field of tail gas treatment, in particular to a carbon film storage device for particulate matter sampling. Background technique [0002] Particulate matter is the focus of attention in the field of environmental protection. The composition of particulate matter has a significant impact on the environment and human health. The chemical and physical properties of particulate matter affect the evolution and persistence of particulate matter in the atmosphere. At the same time, understanding the chemical and physical properties of particulate matter can guide how to reduce particulate matter. Carbon film collection of particulate matter is mainly used for microscopic morphology analysis of particulate matter. The engine exhaust contains a large amount of water vapor. When directly collected, the exhaust gas is easy to condense and affect the sampling process. In the prior art, the exhaust gas is usually diluted and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/22
CPCG01N1/2252
Inventor 张周马骁张文彬徐宏明李雁飞帅石金
Owner TSINGHUA UNIV
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