Testbed suitable for reliability test of lubricating oil pump of gas turbine and test method

Abstract

The invention relates to a testbed suitable for a reliability test of a lubricating oil pump of a gas turbine and a test method. The testbed comprises a bottom frame and a driving test system, wherein the driving test system is connected to a hydraulic pipeline system and a measurement and control system; the driving test system comprises a variable frequency motor and the lubricating oil pump; the hydraulic pipeline system comprises a tank lubricator, an oil suction pipe group and an oil return pipeline; the measurement and control system comprises a measurement and control cabinet and a data acquisition master station; the measurement and control cabinet is connected to the data acquisition master station; a weak current bridge is connected between the measurement and control cabinet and the hydraulic pipeline system; the measurement and control cabinet is connected to a frequency conversion cabinet and a distribution box through a strong current bridge; the strong current bridge is connected between the frequency conversion cabinet and the variable frequency motor; and the tank lubricator is connected to the strong current bridge between the measurement and control cabinet and the frequency conversion cabinet through another strong current bridge. According to outlet lubricating oil pressure requirements corresponding to various working conditions, the opening degree of an electric valve is automatically adjusted, meanwhile, the measurement and control cabinet and the data acquisition master station store test data at the same time, and the recording automation degree is high.

Description

technical field [0001] The invention relates to the technical field of automatic control tests, in particular to a test bench and a test method suitable for reliability tests of gas turbine lubricating oil pumps. Background technique [0002] The gas turbine lubricating oil pump is driven by the compressor rotor of the gas turbine through gear transmission. The lubricating oil pump is the most important equipment in the gas turbine lubricating oil system. It is used to lubricate and cool the bearings of the gas turbine. Therefore, whether the lubricating oil pump can operate reliably and stably, It is related to the normal operation of the gas turbine and the length of its service life. [0003] During the reliability test of the lubricating oil pump, it is necessary to simultaneously measure the oil absorption capacity of multiple sub-pumps and the outlet pressure of the oil supply and return pumps under different working conditions. Since the reliability test needs to con...

AI Technical Summary

Problems solved by technology

Since the reliability test needs to constantly change the working conditions, if the manual operation is adopted, the human resources will be greatly invested.

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