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To meet the unmanned operational requirements before rocket launch and improve the working efficiency of gas supply system, the automatic gas charging/discharging technology for gas cylinders has become a key focus in the renovation of rocket gas supply system at aerospace launch sites. For the gas charging/discharging processes of launch vehicle cylinders, a novel automated gas control systembased on an orifice plate designhas beendeveloped. This study employed AMESim software to model and investigate the automatic charging/discharging processes of cylinders. The results demonstrate that by strategically selecting different orifice plate and configuring manual charging valves with gas circuits, the proposed scheme satisfies the technical requirements for charging/discharging of gas cylinders.Furthermore, it achieves both automatic and manual gas charging functions for different gas during testing and pre-launch phases.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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