Ordinary-pressure thermal test system and method of manned spacecraft

Abstract

The invention discloses an ordinary-pressure thermal test system of a manned spacecraft, and a method for performing ordinary-pressure thermal test by the system. The system comprises an inner insulating sealing chamber for setting the manned spacecraft, and a vacuum unit and a vacuum tank which are arranged outside, wherein the vacuum tank is used for providing a vacuum environment for inner part of the manned spacecraft; a control valve for controlling the vacuum unit to operate is arranged between the vacuum tank and a sealed cabin of the spacecraft; a refrigeration dehumidifier unit and a refrigerating unit are arranged outside the insulating sealing chamber; the refrigerating unit is connected with an immediate heat exchanger in the to-be-tested manned spacecraft by a liquid loop; and the liquid loop exchanges heat with the loop in the spacecraft in the insulating sealing chamber. The invention provides a new method in the ground thermal test of the large manned spacecraft, which can check performance of the whole space station assembly, has high safety and flexibility, reduces test expenses and improves thermal test level of the spacecraft in China.

Description

technical field [0001] The invention belongs to the field of ground thermal tests of manned spacecraft, and in particular relates to a system for carrying out system-level thermal tests of manned spacecraft in a normal-pressure environment and a method for using the system for testing. Background technique [0002] The ground thermal test of the manned spacecraft needs to evaluate and accept the thermal performance of the single cabin and the combined body, the ventilation environment in the cabin, and the maintenance of the pressure relief temperature. There is a close relationship between the systems, and the long-term coordination performance of the thermal control system and the environmental control system must be assessed. In addition, the space station is composed of multiple compartments. There are complex heat, air and water vapor transfer relationships inside each compartment. At the same time, harmful gases and pollutants are also coupled with each other. Therefor...

AI Technical Summary

Problems solved by technology

[0004] The existing manned spacecraft thermal test method can no longer be applied to the ground thermal test of super large manned spacecraft at the space station level. The specific limitations include: 1) The size of the space station assembly exceeds the effective capacity of the largest space environment simulator in my country 2) The cost of the vacuum thermal test is high and the test preparation period is long; 3) The performance of the coordinated work of the thermal control system and the environmental control system cannot be assessed at the same time

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