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Particle concentration analyzing system and method

An analysis system and particle concentration technology, applied in the field of particle concentration analysis system, can solve the problems of expensive, large measurement system, time-consuming and so on

Pending Publication Date: 2021-01-15
SENSITIVE OBJECT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Current measurement systems are often large, expensive and time-consuming

Method used

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  • Particle concentration analyzing system and method
  • Particle concentration analyzing system and method
  • Particle concentration analyzing system and method

Examples

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Embodiment Construction

[0035] Referring now to the drawings and the exemplary embodiments described therein, there is provided a system 10 for analyzing the concentration of particles in a fluid, including a condensation particle counter (CPC) 12, to analyze a sample fluid or aerosol to determine the concentration of particles in a sample. The particle concentration or number of particles ( figure 1 ). Analysis system 10 may be adapted to analyze various forms of fluid or aerosol samples (including engine exhaust, ambient atmosphere, power generation exhaust, etc.), including for periodic technical inspections (PTI). The analysis system 10 is configured to operate with a working fluid, such as isopropanol (IPA), to supersaturate the ambient air flow. The saturated ambient air flow is mixed with the sample air, and the mixture of ambient air and sample air is then passed through a coalescer where the supersaturated ambient air is condensed onto the particles in the sample air flow to cause the parti...

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Abstract

A particle concentration analyzing system for testing particle concentrations in a fluid sample, such as engine emission particle concentration present in the exhaust of an engine. The particle concentration analyzing system includes a condensation particle counter having a saturation chamber, a condenser, and a laser optic particle counter. The analyzing system further includes a working fluid tank, a working fluid pump, and a sampling probe. The system provides a robust analysis system for a user to test vehicle emissions without being highly trained on the device, as the device is protectedfrom misuse. A position sensitive sensor is used to ensure that the system is not damaged if the system is tipped over or placed in a position that would produce false results. Additional features include differential pressure sensors, a sealed and replaceable tamper resistant working fluid tank, a solvent recovery system, an anti-cheat device, and fluid purity sensors.

Description

technical field [0001] The present invention relates to a system for analyzing particle concentrations, in particular to a condensation particle counter. Background technique [0002] Engine emissions and air quality standards are increasingly important to the planet as more and more vehicles are found on highways and around the world, and environmental sources continue to emit pollutants. Emissions testing of vehicle engine exhaust is a worldwide concern to ensure that engines do not pollute the planet unduly. Current measurement systems are often large, expensive and time consuming. Furthermore, extensive periodic inspections for all contaminants are required to ensure that the engine remains compliant over its useful life. Another concern with measuring emissions testing is the possibility for the testing facility, technician or customer to "cheat" the test by allowing ambient air to infiltrate the test and show a false pass. [0003] One type of emission analyzer is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/10G01N15/06
CPCG01N15/065G01N2015/0046G01N1/2252
Inventor D·R·布克D·D·布克S·P·布克
Owner SENSITIVE OBJECT
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