High-position protection water-spraying cooling and denoising device for launching platform

Abstract

The invention discloses a high-position protection water-spraying cooling and denoising device for a launching platform. The device comprises multiple water spraying arrays which are arranged on a launching platform body and communicated with an inner flow channel, each water spraying array corresponds to one booster rocket and is used for spraying water to an influence area of combustion gas flowof the corresponding booster rocket on the surface of the platform body, a high-position water spraying form is adopted for the water spraying arrays, and the inner flow channel is communicated withan external water supply system. By means of the high-position protection water-spraying cooling and denoising device, the phenomenon that the influence range of the combustion gas flow of the boosterrockets is expanded can be adapted to, a larger platform top range can be covered, the combustion gas flow shearing layer can be continuously influenced for a long term, energy and momentum exchangeare better achieved, and effective protection is achieved.

Description

technical field [0001] The invention relates to a high-level protective water spray cooling and noise reduction device for a launch platform, belonging to the technical field of space launch heat protection. Background technique [0002] The water spray technology used in the launch process of the bundled launch vehicle can effectively control the jet flow noise, and at the same time effectively protect the launch platform and diversion facilities. [0003] At present, the launch platform mainly sets array nozzles close to the table near the diversion holes to realize the functions of water spray cooling and noise reduction. Existing studies have found that as the rocket take-off height increases, the influence range of the gas flow gradually expands from the diversion holes to For the countertop, the existing water spray cooling and noise reduction device cannot solve the impact of the gas flow on the countertop. In addition, for the bundled launch vehicle, the time for th...

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Problems solved by technology

[0003] At present, the launch platform mainly sets array nozzles close to the table near the diversion holes to realize water spray cooling and noise reduction functions. Existing studies have found that as the rocket take-off height increases, the influence range of the gas flow gradually expands from the diversion holes to For the countertop, the existing water spray cooling and noise reduction device cannot solve the impact of the gas flow on the countertop

In addition, for the bundled launch vehicle, the time for the gas flow of the booster rocket to expand from the impact diversion hole to the table is earlier, and the impact lasts longer. The existing water spray device close to the table has limited effect on the shear layer of the gas flow. , cannot achieve effective protection

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