Ground test tail gas heat recycling and silencing tower for aero-engine

Abstract

The invention discloses a ground test tail gas heat recycling and silencing tower for an aero-engine. The ground test tail gas heat recycling and silencing tower comprises a gas exhaust injection barrel, a heat-insulation soundproof chamber, a gas exhaust tower, a heat exchanger and a silencing device. The ground test tail gas heat recycling and silencing tower is characterized in that the heat-insulation soundproof chamber is a building, wherein the outer layer of the building is a brick-concrete structure, and the inner layer of the building is a heat-insulation soundproof material; the gas exhaust tower is a building which is of a high-temperature-resistant brick and concrete structure; the heat-insulation soundproof chamber is connected to the gas exhaust tower; the high-temperature-resistant gas exhaust injection barrel made of a metal material passes through the heat-insulation soundproof chamber, and is communicated with the gas exhaust tower; the upper part of the gas exhaust tower is provided with a silencing device which consists of metal silencing plates; the lower part of the gas exhaust tower is provided with a heat exchanger; and the heat exchanger consists of metal pipelines with good heat conduction functions. The ground test tail gas heat recycling and silencing tower disclosed by the invention can be used for recycling and utilizing energy in the high-temperature tail gas of the aero-engine, and also can achieve certain noise reduction effect, is simple in device, and is less in investment.

Description

technical field [0001] The invention relates to the technical field of aero-engine testing, and is a device used for recovering exhaust heat and reducing noise of an aero-engine during a ground test. Background technique [0002] Aeroengine ground test is an indispensable part of the engine development process. When the aero-engine is being tested on the ground, it will produce a large amount of high-temperature and high-pressure exhaust gas. The temperature of the exhaust gas is as high as 600°C. At the same time, it is accompanied by high-decibel noise. The displacement can reach 20kg / s, which contains huge energy. The conventional method in the prior art is to lower the temperature by injecting normal-temperature air and mixing the exhaust gas, and then introducing a sound-absorbing device for sound-absorbing treatment and discharging it into the atmosphere, resulting in huge waste of energy. Contents of the invention [0003] The purpose of the present invention is to...

AI Technical Summary

Problems solved by technology

The conventional method in the prior art is to reduce the temperature by injecting normal-temperature air and mixing the exhaust gas, and then introducing a silencer device to silence it and discharge it into the atmosphere, resulting in huge waste of energy

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