A test system and test method for a brayton cycle compressor for nuclear thermal propulsion

By constructing a test system for a Brayton cycle compressor used in nuclear thermal propulsion, the problem of performance testing of the compressor under different speed and flow conditions was solved, and the accurate acquisition of the compressor's aerodynamic performance and the safe and reliable operation of the system were achieved.

CN116906359BActive Publication Date: 2026-06-23BEIJING AEROSPACE PROPULSION INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING AEROSPACE PROPULSION INST
Filing Date
2023-07-27
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing technologies lack a test system capable of simulating the Brayton cycle compressor used in nuclear thermal propulsion under different speed and flow conditions, making it impossible to effectively obtain its aerodynamic performance parameters.

Method used

A test system for a Brayton cycle compressor for nuclear thermal propulsion was designed, comprising a drive transmission system, a compressor air circuit system, and a test bench system. Through components such as a motor, diaphragm flexible coupling, high-speed gearbox, bellows coupling, and torque meter, combined with multi-parameter interlocking protection functions, the performance testing and verification of the compressor under different operating conditions can be realized.

Benefits of technology

Stable testing of the compressor at different speeds and flow rates was achieved, ideal aerodynamic performance parameters were obtained, the safety, reliability and measurement accuracy of the test system were improved, and emergency shutdown protection of the system under over-limit conditions was ensured.

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Abstract

The application discloses a kind of brayton cycle compressor test system and test method for nuclear heat propulsion, the test system in motor rotation is driven high-speed gear box rotation by diaphragm coupling, high-speed gear box is driven high-speed rotation of compressor by first corrugated pipe coupling, torque instrument, second corrugated pipe coupling, wherein torque instrument can be collected and displayed with the real-time running torque value, speed value of compressor;Compressor inlet is connected with atmosphere, after gas medium passes through compressor, from the outlet of compressor, flowmeter, electric regulating valve, finally, through muffler, it is discharged to atmosphere.The application can obtain characteristic parameters under any flow, pressure, speed condition, using this compressor test system to carry out test, can obtain ideal and actual compressor aerodynamic performance, to provide basic support for the development of nuclear heat propulsion engine.
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