Aluminum alloy closed impeller overspeed test device and test method

Abstract

The invention discloses an aluminum alloy closed impeller overspeed test device and a test method, the aluminum alloy closed impeller overspeed test device comprises an operation platform, a power mechanism, a protection mechanism and a monitoring mechanism, the power mechanism is located in the protection mechanism, the power mechanism is used for providing power for device operation, and the protection mechanism is used for protection in the device operation process; the monitoring mechanism comprises sensors and a camera, and is used for real-time monitoring of various parameters in the operation process of the device. The test device is internally provided with various sensors, so that various parameters in the operation process of the test device can be acquired in real time, vibration can be monitored in real time, an overspeed test operation picture can be monitored in real time, and shooting can be performed at the moment of damage; parameters can be used for evaluation of impeller overspeed test results and monitoring of equipment operation and energy consumption, failure analysis can be carried out after a test piece is broken, and the effectiveness of an overspeed test is improved.

Description

technical field [0001] The invention relates to an impeller overspeed test device and a test method, in particular to an aluminum alloy closed impeller overspeed test device and a test method. Background technique [0002] The impeller is the core moving part of turbomachinery. When the impeller is running, it acts on the fluid to provide pressurization for various fluid flows. In order to verify the operation stability of the impeller, it usually needs to pass overspeed and fatigue tests. [0003] The existing overspeed test method is to judge whether the impeller is qualified by observing whether there are cracks in the impeller welds, cover plates, blades, etc. after the overspeed test, and measuring whether the dimensional change before and after overspeed exceeds the required value. For the parameters of the overspeed machine running during the test, usually no collection is made, or real-time vibration values ​​are mainly collected. When impeller failure occurs, it can...

AI Technical Summary

Problems solved by technology

For the parameters of the overspeed machine running during the test, usually no collection is made, or real-time vibration values ​​are mainly collected. When impeller failure occurs, it can only be analyzed according to the crack situation, the physical and chemical analysis results of the impeller, and the tooling structure. , the actual operating parameters of the non-overspeed machine and the real-time photos before and after the failure are used for reference analysis, resulting in low effectiveness of failure analysis, it is difficult to determine the real cause of failure, and there is a risk of repeated failure

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