Dynamic simulation test system and method for high-altitude environment of centrifugal compressor

By designing a high-altitude dynamic simulation test system for centrifugal compressors, dynamically adjusting the intake and extraction volumes, and combining temperature control, the system solves the problem of incomplete simulation in existing technologies, achieves accurate testing of compressor performance parameters under high-altitude conditions, and improves the reliability of test data and the applicability of the system.

CN121595210APending Publication Date: 2026-03-03TIANJIN UNIV
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Patent Information

Application Number
CN202511595062.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-03
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing centrifugal compressor test benches that simulate high-altitude environments cannot fully simulate the key performance parameters of compressors under high-altitude conditions, resulting in significant deviations between test results and actual conditions. Furthermore, they cannot simulate dynamic and continuous altitude changes, limiting application flexibility.

Method used

A dynamic simulation test system for high-altitude environment of centrifugal compressor was designed, including a compressor test module, a high-altitude environment simulation module and a measurement module. The control module dynamically adjusts the intake and extraction volumes based on the comparison between the measured pressure value and the target altitude pressure value. Combined with the heat exchanger to simulate the intake temperature, the pressure of the intake and exhaust pressure tanks is stabilized at the target altitude value, ensuring the integrity and accuracy of the simulated environment.

Benefits of technology

It achieves complete replication of intake pressure and exhaust back pressure under high-altitude conditions, reduces the test deviation of compressor pressure ratio and surge point, ensures that the test data can truly reflect the compressor's performance under high-altitude conditions, and improves the reliability of test data and system applicability.

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Abstract

The invention relates to a centrifugal compressor high-altitude environment dynamic simulation test system. The system comprises a compressor test module; the high-altitude environment simulation module comprises an air inlet surge tank, an air inlet assembly and a first air exhaust assembly which are arranged at the upstream of the air inlet pipeline, and an air exhaust surge tank and a second air exhaust assembly which are arranged at the downstream of the air exhaust pipeline; a measurement module; the control module is used for comparing the first actually-measured pressure value with a target altitude pressure value of the air inlet end and controlling the air inlet amount of the air inlet assembly and the air suction amount of the first air suction assembly according to a comparison result, so that the pressure of the air inlet pressure stabilizing tank is stabilized at the target altitude pressure of the air inlet end; and the control module compares the second actually measured pressure value with the target altitude pressure value of the exhaust end, and controls the air suction amount of the second air suction assembly according to the comparison result, so that the pressure of the exhaust surge tank is stabilized at the target altitude pressure value of the exhaust end. It is ensured that test data can truly reflect the actual plateau working condition performance of the gas compressor.
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