| 摘要 |
Device for regulating the air volume flow for a laboratory exhaust, comprising a rectangular housing (6) which can be arranged on the laboratory exhaust and is equipped with inflow devices that can be connected to the interior of the laboratory exhaust and with outflow devices (8, 12, 13) that can be connected to an exhaust air system, whereby the interior of the housing (6) is divided by a partition (17) into two parts, namely a calming part on the exhaust side and a measurement and regulating part on the outflow side, these two parts being connected by an air deflection area (18), and a rectangular measurement orifice (20, 25) having pressure measurement devices (22, 23, 24, 28, 29) and a rectangular regulating flap (21) are arranged one after the other at a distance in the direction of flow between a housing wall and the partition (17).
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