Method for processing swirler and method for validating air flow of swirler

Abstract

The invention provides a method for processing a swirler and a method for validating air flow of the swirler. The processing method comprises the steps of: 1) modeling a theoretical size of the swirler; 2) determining the range of the runner of the model; 3) splitting the swirler into two parts to perform additive manufacturing or subtractive manufacturing; 4) controlling the flatness, the processing benchmark and the perpendicularity of the splitting surfaces of two splitting pieces when processing the splitting surfaces, and separately processing the split parts; and 5) processing and assembling the splitting pieces according to the model. The validating method comprises the steps of: adjusting and validating the flow data by a standard specimen for several times so that the detection data is consistent with the standard specimen; testing the flow of the maximal air runner by a number of assembly parts; testing the flow of the minimal air runner by a number of assembly parts; comparing the average value with the designed theoretical flow value; validating that the size and the tolerance of the designed structure satisfy the flow requirement if the flow detection average value accords with the designed calculated value; and otherwise, validating that the requirement is not satisfied. By adoption the methods provided by the invention, the swirler can be manufactured and measured rapidly and precisely.

Description

technical field [0001] The invention relates to the field of structural design and performance testing of a vortex, in particular to a method for processing the vortex and verifying the air flow of the vortex, and is especially suitable for the verification of the theoretical air flow of the vortex in the combustion chamber of an aero-engine. Disassemble, use additive and subtractive material processing technology for the air flow channel, quickly manufacture, assemble, and conduct flow test, so as to quickly verify whether the design size of the vortex device meets the design requirements of the air flow. Background technique [0002] For vortexers and vortex parts with venturi tubes, the air flow of the parts is calculated according to the structural size of the parts, and there is a certain deviation from the actual. Moreover, the structure of the vortexer is complex, and the air flow channel is often formed by blades or structures similar to blades. Most of them are manu...

AI Technical Summary

Problems solved by technology

Moreover, the structure of the vortexer is complex, and the air flow channel is often formed by blades or structures similar to blades. Most of them are manufactured by casting technology. The cavity between the blades forming the air flow channel is formed by carbon core casting. The shape and position of the blades, The thickness dimension is not easy to guarantee

In the production process, due to the existence of thermal processes such as melting and solidification, the difference in melting and solidification results in poor consistency of each batch

The design flow rate in the casting blade flow channel test may be large or small, with large fluctuations, which cannot effectively verify the compliance between the design size and the design flow rate, and affect the delivery of the final product

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