AIR FLOW RATE SAMPLING CONSTANT CONTROLLER

The utility model relates to the fields of the environmental protection, the labor protection and the medicine sanitation and discloses a sampling gas flowing rate constant controlling device used by a sampling device for measuring the dust concentration in the atmospheric environment operational pl...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LIU FAN, LIU ZAIXUE
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The utility model relates to the fields of the environmental protection, the labor protection and the medicine sanitation and discloses a sampling gas flowing rate constant controlling device used by a sampling device for measuring the dust concentration in the atmospheric environment operational place. The sampling gas flowing rate constant controlling device is characterized in that the flowing rate constant controlling device uses an elastic apparatus (5) to support a floater (4) and the elastic apparatus (5) and the floater (4) are arranged in a main body (3) with an inner wall being a cambered surface. The center of the main body is provided with a guide rod (1) and a top cover (2) and a lower cover (7) are two extreme positions of the displacement of the floater. Under the condition of meeting the accuracy requirement suggested by a sampling device for a sampling power apparatus, the flowing rate constant controlling device has the advantages of stable and reliable working and low failure rate. The sampling gas flowing rate constant controlling device has no fixed requirement for the sampling power type and can be matched with a gas sucking pump and a wind machine.