| 摘要 |
Method and air treatment device (1 ) for control of supply air flow (L1 ). The air treatment device (1 ) comprises a chilled beam (2) with a pressure box (5) comprising an inlet (6) for inflow of supply air flow (L1 ) and a plurality of outlets (7) for outflow of the supply air flow (L1 ) out of the pressure box (5). Further the air treatment device (1 ) comprises an actuator (12) for control of supply air flow (L1 ), and the pressure box (5) comprises at least one pressure measuring socket (13), useful for representative control of static pressure (ps) in the pressure box (5). The air treatment device (1) registers the static pressure (ps) in the pressure box (5) and the position of the actuator (12), and based on that calculates the real supply air flow (L1 ) in the chilled beam (2). The actuator (12) is in turn arranged to change the configuration of the outlets (7) by a linear motion of a cover member (9), by which motion the open area of the outlets (7) is changed. |
