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随着新一代运载火箭研制的开展,新型120 t级高压补燃液氧煤油发动机将得到广泛的使用,该发动机采用的推进剂贮箱增压系统设计被列为新一代运载火箭研制的重大关键技术之一。在对国内外主要液体运载火箭增压方案进行分析的基础上对120 t级液氧煤油发动机的贮箱增压系统进行了研究,提出了液氧贮箱采用压力传感器与电磁阀组合的常温氦气加温增压,煤油贮箱采用压力传感器与电磁阀组合的常温氦气增压方案,并针对液氧贮箱采用常温氦气加温增压的方案开展了理论分析和全尺寸系统级试验研究。理论分析和试验结果表明,该增压方案可行。
With the development of a new generation of launch vehicles, the new 120 t high-pressure liquid oxygen kerosene engine will be widely used. The design of the booster system for propellant tanks used in this engine is listed as a key issue for the development of a new generation of launch vehicles One of the technologies. Based on the analysis of the pressurization schemes of the main liquid propellant rocket systems at home and abroad, the research on the supercharging system of the tank for a 120 t liquefied kerosene engine was put forward. At the room temperature, the liquid oxygen tank with pressure sensor and solenoid valve combined with helium Gas heating and pressurization, kerosene tank pressure sensor and solenoid valve combination of room temperature helium pressurization program, and the liquid oxygen tank at room temperature helium heating booster programs carried out a theoretical analysis and full-scale system-level test the study. Theoretical analysis and experimental results show that the pressurization scheme is feasible.