METHOD FOR CONTROLLING A CONVEYED FLUID MASS FLOW BY MEANS OF DIFFERENTIAL PRESSURE MEASUREMENT, AND SYSTEM THROUGH WHICH FLUID FLOWS
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United States of America Patent
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Issued Date -
Aug 15, 2024
app pub date -
Jun 8, 2022
filing date -
Jun 15, 2021
priority date (Note) -
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Abstract
The invention relates to a method for controlling a conveyed mass flow of fluid or air in a system (1) through which fluid or air flows, comprising: an inlet (2); at least one fan (3) connected downstream of the inlet (2) in the flow direction and having a drive (4); an outlet (5) for conveyed fluid or conveyed air from the fan (3); a pressure loss portion (6) between the fan (3) and the outlet (5); and at least one sensor (7, 8), which is coupled to at least one calculation module (9a, 9b) and to at least one control device (22a, 22b), by means of which the drive (4) of the fan (3) is controlled on the basis of sensor values. A first pressure sensor (7) is provided upstream of the fan (3) in the flow direction and a second pressure sensor (8) is provided downstream of the pressure loss portion (6) in the flow direction, and the speed of the fan (3) is controlled on the basis of the measured pressure difference between the two pressure sensors (7, 8).
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