Negative pressure collection system

The utility model relates to the field of negative pressure collection, and discloses a negative pressure collection system which comprises a negative pressure weighing chamber, a weighing cabinet is arranged in the negative pressure weighing chamber, the weighing cabinet is installed on one side in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HUANG XIANGFEI, ZHANG BAOXIAN, TENG SHICHAO, FU YONGGUI, WANG MENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CLEANING CLEANING IN GENERAL DRYING DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM HEATING LIGHTING MEASURING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PREVENTION OF FOULING IN GENERAL SEPARATION TESTING TRANSPORTING WEAPONS WEIGHING
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Beschreibung
Zusammenfassung:	The utility model relates to the field of negative pressure collection, and discloses a negative pressure collection system which comprises a negative pressure weighing chamber, a weighing cabinet is arranged in the negative pressure weighing chamber, the weighing cabinet is installed on one side in the negative pressure weighing chamber, the weighing cabinet comprises a working table used for weighing operation and a negative pressure air duct, a first fan is installed above the working table, and a second fan is installed above the negative pressure air duct. An air outlet of the first draught fan right faces the upper surface of the workbench, the negative pressure air channel comprises an upper air inlet and a lower air inlet, the upper air inlet is located in the edge of the upper surface of the workbench, the lower air inlet is located below the workbench, and a second draught fan is coaxially installed in the negative pressure air channel, so that the problem that in the prior art, the gas collection e