System for accurately measuring flow of engine nozzle

Abstract

The invention provides a system for accurately measuring flow of an engine nozzle. The system comprises a hydraulic source, a measurement and control platform and a clamping platform, wherein the hydraulic source comprises a test medium container and a measurement device, and is used for providing test medium with stable pressure for the system; the measurement and control platform comprises a hydraulic pipeline and a measurement and control system, and is used for stably transferring the test medium with pressure output by the hydraulic source to the clamping platform and feeding back a signal according to the pressure of the clamping platform, so that the test medium is transferred with a stable preset pressure value; and the clamping platform comprises a liquid storage platform, a clamping device and a measurement device, and is used for mounting and fixing the nozzle and providing real-time liquid flow pressure with reliable sealing. Through measuring the flow of the nozzle, the affect of the nozzle on power, combustion sufficiency and stability of the engine is ensured. The system has the advantages of high measurement efficiency, high measurement precision, high intelligent degree and the like, and can be used for measuring the flow of the engine nozzles in various models.

Description

technical field [0001] The invention relates to an engine nozzle flow measurement system, which can be used to measure the flow of aviation and aerospace engine nozzles under the action of specified pressure. Background technique [0002] The flow accuracy of the nozzle has an important influence on the adequacy and stability of engine power and combustion. Whether the flow of liquid passing through the nozzle under a specific pressure can meet the design requirements is directly related to the accuracy of the flow measurement system. However, the existing measurement system manually adjusts the flow and pressure, the flow measurement accuracy is poor and the requirements for the operator are high, the working noise is large during measurement, the pressure fluctuates greatly, and it cannot be accurately controlled. At the same time, in the process of measurement Must rely on standard nozzles, the measurement results can only express whether the measured nozzles are qualifie...

AI Technical Summary

Problems solved by technology

However, the existing measurement system manually adjusts the flow and pressure, the flow measurement accuracy is poor and the requirements for the operator are high, the working noise is large during measurement, the pressure fluctuates greatly, and it cannot be accurately controlled. At the same time, in the process of measurement Must rely on standard nozzles, the measurement results can only express whether the measured nozzles are qualified or unqualified, and cannot give specific measurement values, and the results cannot be saved and printed, especially the pressure cannot be accurately controlled, which seriously affects the flow measurement results, so now Some flow measurement devices have disadvantages such as poor accuracy, inability to measure specific flow values, inconvenient control, and high noise.

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