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Gas testing system suitable for tests of low-thrust engine

A test system and engine technology, applied in the direction of jet engine test, gas turbine engine test, etc., can solve the problems of bulky valves and other equipment, not suitable for small thrust engine principle research test, complex pipeline supply test system, etc., to achieve easy Implementation, operation reduction of modification, effect of reduction of stress concentration phenomenon

Active Publication Date: 2015-07-01
BEIHANG UNIV
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Problems solved by technology

Generally, in the application test process of large-scale engine engineering, the pipeline supply test system is relatively complicated and the corresponding valves and other equipment are relatively cumbersome, which is not suitable for small-thrust engines to conduct principle research tests

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  • Gas testing system suitable for tests of low-thrust engine
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Embodiment Construction

[0032] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0033] The present invention is a gas test system suitable for small-thrust engine tests. Fully transparent quartz glass is used as the engine combustion chamber in the middle, which facilitates the observation of various optical combustion diagnostic devices. It mainly includes infrared thermal imaging cameras, high-speed cameras, and Devices such as laser-induced fluorescence equipment. The ignition device is arranged at the end of the combustion chamber to eliminate the influence of the ignition device on the combustion flame. This kind of combustion device has a stable combustion process and normal ignition, and can well integrate and observe various optical combustion diagnostic devices to obtain all-round optical data of the hydrogen-oxygen combustion process, and has a good optical combustion diagnosis demonstration effect.

[0034] The presen...

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Abstract

The invention discloses a gas testing system suitable for tests of a low-thrust engine. The gas testing system comprises a fixed module and a movable module, the fixed module comprises manual stop valves, filters, pressure reducers and pressure meters, and the movable module comprises sonic nozzles, electromagnetic valves, one-way valves and pressure sensors. The gas testing system is subjected to modularized designing, and corresponding hoses are adopted for connection, so that the requirement that a valve is closest to the engine is guaranteed to be met, stress concentration in the process when hard stainless steel pipes are adopted for connection is reduced, and unnecessary modifying operation on a connecting pipeline of the engine during multiple tests is reduced.

Description

technical field [0001] The invention relates to a gas test system suitable for the ground test of a gas-gas combustion engine, which belongs to the ground test device of an aerospace engine. Specifically, it is a gas supply device and a multi-optical combustion diagnosis test device suitable for ground small-thrust engine tests. Background technique [0002] In the field of aerospace engines, the full-flow afterburning cycle engine is a new cycle engine of liquid rocket engines, and the gas-gas combustion injector technology is one of its core technologies, so the research on gas-gas injector combustion has become a major research direction. During the test, it became the basic requirement to ensure the precise injector propellant medium inlet pressure and inlet flow rate. Generally, in the process of large-scale engine engineering application tests, the pipeline supply test system is relatively complicated and the corresponding valves and other equipment are relatively cu...

Claims

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Application Information

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IPC IPC(8): G01M15/14
Inventor 俞南嘉戴健蔡国飙
Owner BEIHANG UNIV
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