A self-control flow testing device

Abstract

The invention relates to a self-controlled flow test device. The device comprises a master control computer, a filter 1, a decompressor, a pressure gage 2, a proportioning valve, a hand valve 3, a test liquid storage tank, a pressure gage 1, a filter 3, a solenoid valve 3, a hand valve 1, a differential manometer, a filter 2, a solenoid valve 1, a standard flow meter, a flow meter to be measured, a solenoid valve 2, a branch selector, a recycling tank, a recycling pump, a hand valve 2, a weighing module and a test weighing tank; The gas pressure inside the test liquid storage tank is stabilized within a specific range through large-scale coarse regulating by the decompressor and small-scale fine regulating by the proportioning valve, which satisfies the stable requirement of constant flow test. Through acquiring data of the pressure gage and the differential manometer of the test liquid storage tank and the flow data of the standard flow meter in real time, and through adjusting the cushion pressure of the test liquid storage tank, stable adjustment of system output flow is achieved and large scale target flow changes can be adapted to. The device realizes automation of test calibration and increases test precision and efficiency.

Description

technical field [0001] The invention relates to a self-control testing device for fluid flow, that is, a self-control flow testing device, which belongs to the field of instruments and equipment. Background technique [0002] Ultrasonic flowmeter has the characteristics of high precision and no fluid pressure loss, which can measure the flow of spacecraft propulsion system in real time and provide accurate data feedback. In addition, the ultrasonic flowmeter can also be used in the on-rail filling system to monitor the propellant flow in the filling pipeline in real time, and provide accurate calculation of the propellant volume and pressure control of the filling tank and the tank being filled. data feedback. [0003] The self-control flow test device is the key device in the development process of ultrasonic flowmeter. The high precision and real-time performance of this device can carry out high-precision fluid flow test and flow calibration for ultrasonic flowmeter. At...

AI Technical Summary

Problems solved by technology

However, the water tower test system cannot meet the requirements of special media, the flow rate cannot be controlled independently, and it does not have the function of automatic test.

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