A high-level protective water spray cooling and noise reduction device for a launch platform

A launch platform, water spray cooling technology, applied in launch systems, household refrigeration devices, transportation and packaging, etc., can solve the problems of limited shear layer effect of gas flow, inability to solve the influence of gas flow, and inability to achieve effective protection, etc. Realize energy and momentum exchange, effective protection, and improve the effect of water spray flow

Active Publication Date: 2021-07-09
BEIJING INST OF SPACE LAUNCH TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • A high-level protective water spray cooling and noise reduction device for a launch platform
  • A high-level protective water spray cooling and noise reduction device for a launch platform
  • A high-level protective water spray cooling and noise reduction device for a launch platform

Examples

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Effect test

Embodiment

[0033] Take a core stage rocket with four boosters as an example:

[0034] like figure 1 As shown, the high-level protective water spray cooling and noise reduction device includes four arc-shaped water spray arrays, which correspond to the four booster rockets one by one, and each arc-shaped water spray array is symmetrically arranged along the corresponding booster rocket L-L' , the radius is 2r, the central angle is 90°, the spray direction of each water spray array is inclined downward, and the angle with the horizontal direction is 20°, the distance from the nozzle to the upper surface of the launch platform is 1m, the water output of each nozzle The angle is 90°-150°.

[0035] The high-level (1m) protective water spray cooling and noise reduction device sprays water in a directional manner to the areas affected by the jet gas flow of the four booster rocket engines. The largest table area), and the effect of cooling and noise reduction on the table lasts longer (starti...

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PUM

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Abstract

The invention discloses a high-level protective water spray cooling and noise reduction device for a launch platform, which comprises a plurality of water spray arrays arranged on the body of the launch platform and communicated with a built-in flow channel, and each water spray array is connected to a booster rocket. Corresponding, it is used to spray water to the area affected by the corresponding booster rocket gas flow on the surface of the platform body. The water spray array adopts the form of high-level water spray, and the built-in flow channel is connected with the external water supply system. The invention can adapt to the expansion of the influence range of the gas flow of the booster rocket, can cover a larger table range, and can affect the shear layer of the gas flow for a long time, better realize the exchange of energy and momentum, and realize effective protection.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/00F25D31/00
CPCB64G1/002F25D31/00
Inventor 陈劲松曾玲芳平仕良张筱吴新跃王南张国栋刘英代春涛
Owner BEIJING INST OF SPACE LAUNCH TECH
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