Splash-proof device for atomization mechanism research and test platform

Abstract

The invention relates to a splash-proof device for an atomization mechanism research and test platform. The splash-proof device comprises sidewalls, a primary shutter structure, and a secondary shutter structure. The sidewalls are used for fixing and supporting the shutter structures. The bottom of each sidewall is provided with a rectangular notch. The primary shutter structure is composed of a plurality of parallel blades which are obliquely arranged between the sidewalls; the top ends of the blades are level with the top ends of the sidewalls; two ends of the blades are fixedly connected with the sidewalls; the A-A section of each blade is parallelogram shaped; the acute angle of the blades is equal to the slant angle of the blades; the ends of the adjacent blades are in the same vertical plane. The secondary shutter structure is composed of a plurality of parallel blades which are obliquely arranged between the sidewalls; the top ends of the blades are arranged right blow the blades of the primary shutter structure; two ends of the blades are fixedly connected with the sidewalls; the A-A section of each blade is parallelogram shaped; the acute angle is equal to the slant angle of the blades. The splash-proof device has the advantages that water splashing is prevented effectively and elimination of water mist during test is further enhanced.

Description

technical field [0001] The invention relates to the technical field of rocket engines, in particular to an anti-splashing device for a test platform for atomization mechanism research. Background technique [0002] The atomization performance of the nozzle directly affects the combustion efficiency of combustion devices such as rocket engines and air heaters, thereby affecting their performance. The liquid or two-phase flow medium is ejected from the nozzle, and generally goes through the continuous liquid film stage, the primary crushing stage and the secondary crushing stage. For each stage of nozzle atomization, domestic and foreign researchers have conducted detailed research, but in the atomization There is still no consensus on the mechanism. [0003] Li Qinglian, Wu Liyin and others from the University of National Defense Science and Technology designed and built an atomization mechanism research test platform, using phase Doppler analyzer (PDA), laser particle size ...

AI Technical Summary

Problems solved by technology

However, during the test, when the liquid flow rate is large and there is gas-assisted atomization, the liquid jet is concentrated and the speed is high, and the jet impacts the bottom of the drainage tank, resulting in a strong splashing phenomenon, and the water droplets splash and enter the measurement area to affect the atomization Measurement accuracy, and the splashed water droplets are easy to fly out of the spray collection tank of the test bench, thus affecting the environment of the test room

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