Test device for fuel atomization characteristics in annular cyclone passage

Abstract

The embodiment of the present application provides a kind of annular rotational flow passage fuel atomization characteristic test device, it is related to combustion chamber fuel nozzle atomization test field.The purpose is to improve the problem that the observation of annular rotational flow passage fuel atomization characteristic is not comprehensive enough.It includes glass sleeve, rotational flow device, oil collecting ring and nozzle, the downstream of glass sleeve is used for atomization characteristic shooting observation;Rotational flow device is installed in the upstream of glass sleeve;Oil collecting ring is arranged in the middle of rotational flow device, annular rotational flow passage for oil-gas mixing is formed between the outside of oil collecting ring and the inside of glass sleeve, and oil collecting ring is provided with oil collecting cavity and nozzle communicated with oil collecting cavity.Laser sheet light illuminates annular rotational flow passage through glass sleeve, glass sleeve is arranged along the axial direction, camera and sheet light source are arranged to be synchronous along the axial direction, the atomization characteristics of fuel at different axial positions can be obtained, and finally three-dimensional distribution is formed, the atomization characteristics in annular rotational flow passage are observed comprehensively, and the test effect is improved.

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