Diesel engine exhaust particulate matter sampling and sealing system and method

A diesel engine and particulate matter technology, which is applied in the field of diesel engine exhaust particulate matter sampling and storage systems, can solve the problems of difficulty in accurately extracting exhaust particulate matter samples, inconvenient portability, complex structure, etc. fast effect

Pending Publication Date: 2020-04-03
KUNMING UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

The traditional method of cutting the DPF carrier to take out the particulate matter cannot avoid the sample being polluted by outside air and water vapor, and it is difficult to accurately extract exha

Method used

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  • Diesel engine exhaust particulate matter sampling and sealing system and method
  • Diesel engine exhaust particulate matter sampling and sealing system and method
  • Diesel engine exhaust particulate matter sampling and sealing system and method

Examples

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Example Embodiment

[0030] Example 1: Such as Figure 1-8 As shown, a diesel engine exhaust particulate matter sampling and sealing system, a diesel engine exhaust particulate matter sampling and sealing system, including a sampling pipeline 2, a cooler 3, two-electric three-position three-way solenoid valve 5, one-way valve I6, one-way Valve II13, overflow valve 10, union 12, two-position two-way solenoid valve 14, sampling tank module 11 and control circuit;

[0031] The inlet of the sampling pipe 2 is located at the front end of the diesel engine post-processing system 9 located on the diesel engine exhaust pipe 8; the exhaust back pressure is used to make part of the gas enter the sampling pipe 2 by itself, and the diesel engine post-processing system 9 is located in the diesel engine exhaust pipe 8. The middle part is used to increase the exhaust back pressure; the overflow valve 10 is connected to the rear end of the diesel engine aftertreatment system 9; after the pressure sensor Ⅱ 7 is conne...

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Abstract

The invention discloses a diesel engine exhaust particulate matter sampling and sealing system and method. The system comprises a sampling pipeline, a cooler, a two-electricity three-position three-way electromagnetic valve, a one-way valve I, a one-way valve II, an overflow valve, a movable joint, a two-position two-way electromagnetic valve, a sampling tank module and a control circuit. The diesel engine exhaust particulate matter sampling and sealing system is simple in structure, main parts can be cut and processed by a machine and can be manufactured quickly and conveniently, is convenient for the small-batch machining and manufacturing of enterprises and colleges, enables the research cost to be reduced, and can sample and seal the diesel engine exhaust particulate matters under different given working conditions.

Description

technical field [0001] The invention relates to a diesel engine exhaust particulate matter sampling and sealing system and method, belonging to the field of engine bench test equipment. Background technique [0002] Automotive environmental protection regulations are becoming increasingly stringent, but for a long time to come, the internal combustion engine will still be the dominant driving force for vehicles. Among diesel engine pollutant emissions, fine particulate matter is the main culprit of haze weather. Fine particulate matter with a particle size of less than 2.5 μm has a large specific surface area, strong activity, and is easy to be accompanied by toxic and harmful substances (such as heavy metals, microorganisms, etc.). The residence time in the atmosphere is long and the transportation distance is long, which seriously endangers human health and atmospheric environment quality. In order to meet more stringent emission requirements, the application of exhaust a...

Claims

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Application Information

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IPC IPC(8): G01N1/14
CPCG01N1/14G01N2001/1418
Inventor 陈贵升廖凭皓沈颖刚
Owner KUNMING UNIV OF SCI & TECH
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