载人航天器内腐蚀材料表面原位修护装置设计

Design of in situ repair device for the microbial corrosion surface material used in manned spacecraft

为了能够快速有效地修护空间站等载人航天器舱内的微生物腐蚀材料表面,提出了一种腐蚀材料表面原位修护装置设计方案,从装置原理结构、载荷强度仿真、原理样机验证方面进行了阐述。初步应用验证结果表明:装置具备快速修护功能且操作便捷,能够实现对材料表面菌斑清除后的快速涂抹修护;材料修护装置操作过程中无紫外光泄漏,无臭氧污染,总挥发性有机化合物没有超过密闭舱内的最大允许浓度,具有良好的安全性。该装置的应用有望提升我国载人航天器在轨防控微生物污染与腐蚀的能力。

In order to quickly and effectively repair the surfaces of the microbially corroded materials in manned spacecraft modules, such as the space stations, a scheme of the in-situ repair device is proposed. The principal structure of the device, the simulation of the load level, and the verification of the principal prototype verification are presented. The preliminary application validation results show that: the device, with its capability of fast repair and convenient & safe operation, can be implemented for the fast coating repair of the material surface after the removal of the bacterial plaque. A good effect of safety is achieved with no UV leakage or ozone pollution, and the total volatile organic compounds do not exceed the maximum allowable concentration in the sealed cabin during the operation of the device. The application of this device is expected to enhance the ability of our manned spacecraft to prevent and control the microbial contamination and the corrosion in orbit.