Temperature control device and method for forming anti-heat insulation material of large-size curved surface rotary body

Abstract

The invention relates to a temperature control device and method for forming an anti-insulation material for a large-size curved surface revolving body. When the gas parameters exceed the set range during the heating or drying process, the evenly arranged four-way air inlets are opened to feed the inert gas. Open the vacuum system to pump air until the gas parameters are normal; after the monitored temperature exceeds the set threshold, open the symmetrically arranged two-way pre-plan air inlet, and pass in an inert gas lower than room temperature to realize oxygen isolation and cooling; the invention solves the problem of large-scale , The high temperature abnormal control problem of the integral molding of the anti-heat insulation material with the curved surface rotary body structure, avoiding the resin explosion reaction and high temperature failure of the resin, and the failure of the resin temperature abnormal reaction. The control technology is simple to operate, the parameters are controllable, and it is easy to realize.

Description

technical field [0001] The invention belongs to a method for forming a low-density heat-insulating material with a low-density three-dimensional fiber structure as a reinforcing phase, relates to a temperature control device and method for a large-sized, curved-surface rotary structure heat-proof material, and belongs to the field of heat protection. Background technique [0002] During the return and reentry process, the returnable spacecraft needs to experience high heat flow erosion, and the thermal protection system on the outer surface of the return aircraft is very important. With the continuous development of deep space exploration technology, returnable spacecraft has higher requirements for lightweight thermal protection system, surface structure stability and integrity. Integral molding of heat-resistant insulation materials with large size and complex configuration is a trend in the development of thermal protection systems. The typical characteristics of the per...

AI Technical Summary

Problems solved by technology

The heating time of the large-scale integral molding anti-insulation material is longer, and the low thermal conductivity and high specific heat capacity of the material cause the internal heat dissipation of the material to be slower, which may cause implosion during the resin reaction process; or cause local heat accumulation to form high temperature, resulting in resin failure or resin reaction failure

At the same time, the large curvature rotary structure configuration is more unfavorable for heat flow

[0003] Based on the above analysis, one of the key problems to be solved in the overall molding of anti-insulation materials is the risk of implosion and resin failure caused by the overall molding process due to thermal insulation performance, long-term heating, and configuration characteristics.

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