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An aerosol generator capable of simulating diesel engine exhaust particle flow

An aerosol generator and particle flow technology, which is applied in the direction of gas/steam and solid mixing, dissolution, colloid chemistry, etc., can solve the problem of single concentration adjustment means, achieve the effect of wide concentration range, expanded concentration range, and economical device

Active Publication Date: 2016-01-13
XIHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the TDA series aerosol generator of American ATI company uses Laskin nozzle to atomize the solution to generate aerosol, and its concentration is stable, but its concentration adjustment method is single (only adjust the dilution ratio of air)

Method used

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  • An aerosol generator capable of simulating diesel engine exhaust particle flow
  • An aerosol generator capable of simulating diesel engine exhaust particle flow
  • An aerosol generator capable of simulating diesel engine exhaust particle flow

Examples

Experimental program
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Embodiment Construction

[0030] see figure 1 , the aerosol generator includes an air intake section, an aerosol generation section, an aerosol dilution section and a sampling section; the air intake section is used to provide stable and adjustable clean air, including an air compressor, an air filter, a quality Flow meter; the aerosol generation section is used to provide aerosol with stable concentration and quantitative quantity, including the base frame, rotating motor, and aerosol generation part, wherein the aerosol generation part includes a support plate, a turntable, a compression plate and a particle supply part The aerosol dilution section is used to dilute the aerosol to the required concentration in a certain proportion, including the base frame, rotating motor, mass flow meter, aerosol dilution part, DPF, wherein the aerosol dilution part includes a support plate, a turntable, a press Tight disk; the sampling section is used to provide collection, including DPF, concentration monitoring u...

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Abstract

An aerosol generator capable of simulating the exhaust particle flow of a diesel engine belongs to an aerosol generating device for simulating the exhaust particle flow of a diesel engine to test the performance of a diesel engine exhaust treatment system. The air intake section is used to provide clean air with a stable and adjustable flow rate, the aerosol generation section is used to provide aerosol with a stable and quantitative concentration, the aerosol dilution section is to dilute the aerosol to the required concentration in a certain proportion, and the sampling section It is to provide aerosol gas that meets the requirements. The gas generated by the air compressor passes through the air filter, the mass flowmeter of the intake section and the mass flowmeter of the dilution section, the bypass channel and the aerosol generation part, the DPF of the dilution section and the aerosol dilution part, the sampling interface and the concentration monitoring unit, Sample segment DPF. The device of the invention is not only energy-saving, environment-friendly, simple in structure, low in cost, and reliable in performance, but also adjusts the aerosol concentration in a large range through multiple external methods, thereby more realistically simulating various working conditions of the diesel engine.

Description

technical field [0001] The invention belongs to a filtering performance testing device of an automobile exhaust post-treatment system, and in particular relates to an aerosol generating device capable of simulating diesel engine exhaust particle flow and realizing concentration adjustment in the fields of energy saving and environmental protection. Background technique [0002] Due to its high thermal efficiency and low CO 2 Emissions and other advantages, and is widely used in the transportation industry. However, its particulate matter emission is large (30-80 times that of a gasoline engine with the same displacement), causing serious pollution to the environment and endangering human health, thus severely restricting its development. Therefore, stringent emission standards require effective and reliable technologies to reduce particulate matter emissions. From a technical point of view, it is difficult to meet the current emission standards only by internal purificatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/00B01F3/06B01F23/30
Inventor 孟忠伟蒲云飞杨冬李路张靖张川杨杰雅
Owner XIHUA UNIV
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