In-line smoke attenuator

In-line smoke attenuator

In one form the present invention provides an apparatus (10) in an airflow path before a particle detector (38), wherein the apparatus (10) removes a substantially constant proportion of all sizes of airborne particles from the airflow over time. In a preferred form the apparatus includes a flow spl...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KNOX, RON, MARTIN, SCOTT JAMES
Format: Patent
Sprache:eng
Schlagworte:
ALARM SYSTEMS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
ORDER TELEGRAPHS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PHYSICS
SEPARATION
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
TESTING
TRANSPORTING
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Beschreibung
Zusammenfassung:In one form the present invention provides an apparatus (10) in an airflow path before a particle detector (38), wherein the apparatus (10) removes a substantially constant proportion of all sizes of airborne particles from the airflow over time. In a preferred form the apparatus includes a flow splitting arrangement (18) configured to divide a fluid flow into a plurality of sub-flows, the splitting arrangement 10 including means (22, 23) for defining a plurality of substantially identically dimensioned flow apertures configured to direct a portion of the fluid into a respective sub-flow.