A METHOD FOR REGULATING FLUID PRESSURE

摘要

Specified is a method for regulating the pressure of a fluid, moved through a pipe system with at least one consumer by a pressure generator, driven with an electric motor. In order to ensure a sufficient supply for all consumers on a continuous basis, the motor speed for adjusting the pressure in the pipe system (1) is regulated by way of a controller (9). At least one control curve reflecting the fluid pressure in the pipe system (1) in dependence on the amount of the fluid flowing through or the flow speed of t he fluid is impressed into the controller. The control curve extends with a uniform curvature between a predetermined pressure minimum and a predetermined pressure maximu m, such that in the direction of increasing pressure, it is located above a straight line connecting the points of minimum pressure and maximum pressure and is at the greatest distance from this straight line in the center region between the two points . The controller (9) is supplied continuously with an electrical variable as actua l value, which is proportional to the amount of fluid flowing through or the flow speed of the fluid. If the actual value deviates from the desired pressure value, specified according t o the corresponding control curve (R), the motor speed is adjusted so as to compensate for this.