US 2016/0097706 A1 · CONTAINMENT HOUSING WITH INTEGRATED TEST AEROSOL INJECTION AND SAMPLING

Abstract

The system and method for testing a filter containment system. A containment system may include a filter housing with a diverging transition section mounted upstream and a converging transition section mounted downstream. An upstream test section can be arranged upstream of the diverging transition section. During a test of the filter, and aerosol can be dispersed substantially evenly across a cross-sectional area of the upstream test section. The downstream test section can be arranged downstream of the converging transition section. The downstream test section may optionally include a mixer that disturbs the airflow. The downstream test section can also include a sampling array, downstream of the mixer that simultaneously samples the airflow substantially evenly across the cross-sectional area of the downstream test section for the presence of aerosol.

Claims20

Dependent claims

A downstream test section comprising:

a tubular body having an upstream aperture and a downstream aperture;
an array of sensing ports arranged in a passageway of the body between the upstream aperture and the downstream aperture, wherein each sensing port is arranged in a different cross-sectional area of the body;
and
an aerosol sample port arranged on a side of the body between the upstream aperture and the downstream aperture, wherein the aerosol sample port is in fluid communication with the array of sensing ports.

1 more element

A containment system for a ventilation system, comprising:

a housing comprising an airflow inlet aperture and an airflow outlet aperture;
a filter sealing portion disposed in the housing between the inlet and outlet apertures, wherein the airflow inlet aperture and the airflow outlet aperture include a first cross-sectional area;
an upstream diverging transition section connected to the airflow inlet aperture;
a downstream converging transition section connected to the airflow outlet aperture;
an upstream test section that includes an upstream aperture and a downstream aperture, the downstream aperture of the upstream test section configured to be coupled to an upstream aperture of a diverging transition section, the upstream test section comprising:
a tubular body having an upstream aperture and a downstream aperture;
a first aerosol sample port arranged on a side of the body between the upstream aperture and the downstream aperture, wherein the first aerosol port is configured to receive a supply of an aerosol testing agent;
and
an array of dispersion apertures in fluid communication with the first aerosol sample port and arranged in a passageway of the body between the upstream aperture and the downstream aperture, wherein each dispersion aperture is arranged in a different cross-sectional area of the body;
and
a downstream test section that includes an upstream aperture and a downstream aperture, the upstream aperture of the downstream test section configured to be coupled to a downstream aperture of a converging transition section, the downstream test section comprising:
a tubular body having an upstream aperture and a downstream aperture;
an array of sensing ports arranged in a passageway of the body between the upstream aperture and the downstream aperture, wherein each sensing port is arranged in a different cross-sectional area of the body;
and
an aerosol sample port arranged on a side of the body between the upstream aperture and the downstream aperture, wherein the aerosol sample port is in fluid communication with the array of sensing ports.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/871,250Filed 30 Sep 2015

Priority

3 Oct 2014

Published

7 Apr 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

G01N 15/082
Investigating permeability, pore-volume, or surface area of porous materials: investigating permeability by forcing a fluid through a sample
G01M 3/20
By detecting the presence of fluid at the leakage point: using special tracer materials, e.g. dye, fluorescent material, radioactive material
G01N 15/0806
Investigating permeability, pore-volume, or surface area of porous materials: details, e.g. sample holders, mounting samples for testing
B01D 2273/18
Operation of filters specially adapted for separating dispersed particles from gases or vapours: testing of filters, filter elements, sealings

Containment housing with integrated test aerosol injection and sampling

Life of this patent

Containment housing with integrated test aerosol injection and sampling

Life of this patent

Abstract

Claims20