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Determining effluent concentration profiles and service lives of air purifying respirator cartridges

A technology of emission concentration and filter elements, which is applied in the direction of respiratory protection containers, respiratory masks, respiratory protection devices, etc., can solve the problem of not accurately determining the penetration time or service life of pollutants, and not providing the emission concentration distribution graphic output filter element penetration time Service life, does not provide dynamic calculation of emission concentration distribution, breakthrough time and service life, etc.

Inactive Publication Date: 2011-10-12
SCOTT TECH INC
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AI Technical Summary

Problems solved by technology

[0005] Known methods and systems for determining change data and calculating service life of air-purifying respirator cartridges have several disadvantages
For example, known systems and methods do not provide graphical output of effluent concentration profile, breakthrough time or service life of filter elements
Also, these systems and methods do not provide dynamic calculations of emission concentration profiles, breakthrough times, and service life based on dynamically changing inputs from the user
Moreover, these systems and methods determine the breakthrough time or service life to some extent, but the mathematical models on which the breakthrough time or service life is based do not accurately determine the breakthrough time or service life for many pollutants, so The pollutants mentioned include many with relatively low molecular weight and / or low boiling point

Method used

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  • Determining effluent concentration profiles and service lives of air purifying respirator cartridges
  • Determining effluent concentration profiles and service lives of air purifying respirator cartridges
  • Determining effluent concentration profiles and service lives of air purifying respirator cartridges

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Embodiment Construction

[0016] when attached Figure 1 The foregoing Introduction, as well as the following Detailed Description of certain embodiments of the invention, will be better understood when read together. The various figures illustrate, to the extent that the functional blocks of various embodiments are not necessarily indicative of the division between hardware circuitry. Thus, for example, one or more of the described functional blocks (eg, processor or memory) may be implemented in a single piece of hardware (eg, general purpose signal processor or random access memory, hard disk, etc.). Similarly, the programs may be stand-alone programs, may be incorporated as subroutines in an operating system, may be functions in an installed software package, and so on. It should be understood that the various embodiments are not limited to the arrangements and instrumentalities shown in the drawings.

[0017] As used herein, an element or step recited in the singular and proceeded with "a" or "a...

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Abstract

A method for determining at least one of an effluent concentration profile, a breakthrough time and a filter cartridge recommendation includes receiving at least one input parameter, determining at least one of the effluent concentration profile, the breakthrough time and the filter cartridge recommendation based on the input parameter, and graphically displaying at least one of the effluent concentration profile, the breakthrough time, and the filter cartridge recommendation. The effluent concentration profile includes a plot of a concentration of a chemical species over a period of time. The breakthrough time includes a time at which a predetermined concentration of the chemical species passes through a filter cartridge.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to co-pending US Provisional Patent Application Serial No. 61 / 057,522 ("the '522 Application"). The '522 application was filed on May 30, 2008, entitled "Determining Effluent Concentration Profiles and Service Lives of Air Purifying Respirator Cartridges". The entire content of the '522 application is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to systems and methods for determining the useful life of air filters, and more particularly to systems and methods for calculating the useful life of air-purifying respirator cartridges. Background technique [0004] In the United States, it is a regulatory requirement to determine the useful life of an air-purifying respirator filter or filter bed within a filter. Also, many users of air-purifying respirators wish to change out data and / or calculate estimated service life....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B9/00A62B18/08
CPCA62B9/006A62B18/088
Inventor M·法汉姆A·E·斯陶布斯丁育清
Owner SCOTT TECH INC
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