METHOD AND HIGH-PRESSURE SYSTEM FOR DETERMINING A FLOW CONTROL VARIABLE OF A FLUID FLOW FLOWING THROUGH A HIGH-PRESSURE-SIDE HIGH-PRESSURE PUMP OUTLET OF A HIGH-PRESSURE PUMP

摘要

The present invention relates to a method and to a high-pressure system for determining a flow control variable of a fluid flow flowing through a high-pressure-side high-pressure pump outlet of a high-pressure pump, wherein an ultrasonic measuring apparatus, in particular an ultrasonic measuring apparatus arranged externally, is arranged on the outside of the high-pressure-side high-pressure pump outlet in order to measure a flow rate of a fluid flow flowing through a pipe of the high-pressure-side high-pressure pump outlet. The invention further relates to a use of an ultrasonic measuring apparatus for determining a flow value to be achieved of a fluid flow flowing through a thick-walled pipe of a high-pressure-side high-pressure pump outlet of a high-pressure pump, wherein the ultrasonic measuring apparatus is arranged on the outside of the thick-walled pipe of the high-pressure pump outlet, which pipe has an inner diameter to outer diameter ratio of 1:1.5 to 1:5, such that this ultrasonic measuring apparatus dynamically measures the flow rate of the fluid flow and transmits this measured flow rate as a measurement result to an evaluation unit in order to calculate a current flow value as well as the flow control variable from the measurement result.