Automatic spraying system and spraying method for thermal insulation layer of rocket cryogenic storage tank

Abstract

The invention relates to an automatic spray system and method for a heat insulating layer of a cryogenic tank of the rocket. The automatic spray system includes a bottom mobile platform, a spray device, and a tank rolling device; the spray device is arranged on the bottom mobile platform and can move on the bottom mobile platform; and the tank rolling device is arranged on the bottom mobile platform, and a tank is arranged on the tank rolling device. While spraying a cylinder segment, the automatic spray system adopts a spiral, reciprocating or impulse type spray technique; and automatic spray of a box bottom is performed by adoption of a tank continuous uniform rotation and spray gun segment spray technique. The automatic spray system and method for a heat insulating layer of the cryogenic tank of the rocket is high in efficiency and is good in quality.

Description

technical field [0001] The invention relates to automatic spraying equipment and a spraying process, in particular to an automatic spraying system and a spraying method for the thermal insulation layer of a low-temperature storage tank of a rocket. Background technique [0002] The liquid propellant cryogenic tank of the launch vehicle needs to be sprayed with polyurethane heat-insulating coating on the surface of the tank to avoid explosion caused by excessive pressure in the tank. The low-temperature storage tank is large in size, generally 5-10 meters in length, and about 3 meters in diameter. The traditional process uses manual spraying, which usually has unavoidable problems such as a large labor force, high labor intensity, unstable spraying quality, and low efficiency. , The quality of the coating is greatly affected by factors controlled by humans, such as the speed of the gun, the distance of spraying, the amount of spraying, the spraying method used and the technic...

AI Technical Summary

Problems solved by technology

The low-temperature storage tank is large in size, generally 5-10 meters in length, and about 3 meters in diameter. The traditional process uses manual spraying, which usually has unavoidable problems such as a large labor force, high labor intensity, unstable spraying quality, and low efficiency. , the quality of the coating is greatly affected by factors controlled by humans, such as the speed of the gun, the distance of spraying, the amount of spraying, the spraying method used and the technical level of the workers, and the manual spraying environment is harmful to human health

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