A tower cyclone flow test device that converts axial compression into radial sealing

Abstract

The object of the present invention is to provide a tower cyclone flow test device which converts axial compression into radial sealing, which includes a pressure stabilizing cylinder, a convex-concave cover plate, and a cross pressure plate. The pressure stabilizing cylinder and the convex-concave cover plate pass through The firmware is fixed together. The convex-concave cover plate adopts a convex step on the inner cavity surface and a stepped design on the outer concave cavity. There is a central hole in the center of the convex-concave cover plate. The central hole is equipped with a cone-shaped rubber plug and a tower swirl. The axial position of the tower cyclone is fixed by the small flat end face of the step. The inlet angle of the convex step and the center hole adopts a smooth transition. The cross pressing plate is fixed on the convex and concave cover plate, and the middle part of the cross pressing plate is opened. The middle part of the tower cyclone is located in the hole in the middle part of the cross platen. The O-ring of the present invention seals tightly and reliably in the formed triangular ring space, realizes the conversion of axial compression into radial sealing, and effectively solves the problem caused by the increasingly smaller non-essential axial installation end face of the current tower cyclone The problem of difficult sealing of flow test.

Description

technical field [0001] The invention relates to a test device for a gas turbine, in particular to a test device for a combustion chamber. Background technique [0002] In the fields of gas turbines and aero-engines, tower swirlers are widely used in combustion chambers. By using tower swirlers, high-pressure air can form a strong recirculation zone at its outlet, so that the combusted gas flame can continuously flow back to ignite new ones. The mixture of air and fuel keeps the flame stable. Moreover, the length of the flame can be effectively shortened by the swirling flow, thereby reducing the axial dimension of the combustion chamber, ensuring combustion efficiency while saving space, thereby reducing the size of the entire combustion chamber. [0003] In recent years, with the improvement of gas turbine emission requirements, tower cyclones play a more crucial role in controlling air distribution, ensuring lean combustion, and optimizing flow fields. In order to ensure...

AI Technical Summary

Problems solved by technology

However, due to the particularity of the structure of the tower cyclone, it does not have a large enough installation end face in the axial direction for clamping and fixing, and as gas turbines are moving towards smaller size, lighter weight, higher power and lower emissions In the direction of development, the size of the non-essential axial installation end face of the tower cyclone becomes smaller during the optimization process, and the end face is usually cast and rough, which makes the sealing more difficult during the flow test, and the outlet The air flow often causes detection interference to the test sealing position, and the reliability of the test results is affected

In addition, due to structural reasons, the test data is not easy to stabilize, and the adjustment takes a long time, which affects the test efficiency

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