| 姿态控制系统安全阀排放研究 |
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| 引用本文： | 王定军,王新建,方吉汉,张盟.姿态控制系统安全阀排放研究[J].火箭推进,2008,34(3):31-34. |
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| 作者姓名： | 王定军 王新建 方吉汉 张盟 |
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| 作者单位： | 西安航天动力研究所,陕西,西安,710100 |
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| 摘 要： | 恒压挤压式姿态控制系统一般采用压力调节器对气瓶中的高压气体进行调节,并采用安全阀保证系统的安全。设计时一般保证压力调节器节流口在任何情况下均为临界截面,气体通过压力调节器节流口后压力降低,一般远高于大气压力。由于节流口后气流涡流和管路摩擦的作用,气流在到达安全阀排放口后,仍然为临界流动状态。因此,可以采用收缩喷嘴节流公式计算压力调节器节流口和安全阀排放口的压力和流量参数。根据该数学模型,计算了姿态控制系统安全阀前气体压力和流量,试验结果表明所采用的计算方法可行。
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| 关 键 词： | 姿态控制系统 压力调节器 安全阀 排放 |
Study on the safety valve of an attitude control system |
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| Wang Dingjun,Wang Xinjian,Fang Jihan,Zhang Meng.Study on the safety valve of an attitude control system[J].Journal of Rocket Propulsion,2008,34(3):31-34. |
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| Authors: | Wang Dingjun Wang Xinjian Fang Jihan Zhang Meng |
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| Institution: | Wang Dingjun,Wang Xinjian,Fang Jihan,Zhang Meng (Xi\'an Aerospace Propulsion Institute,Xi\'an 710100,China) |
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| Abstract: | A safety valve is set up to keep the attitude control system in a safe range. The regulator is designed to ensure the regulator orifice to be a critical crosssection in any case. The pressure is decreased through the regulator but it is still much higher than the atmospheric pressure. Because of the swirl and friction, the discharge port of the safety valve maintains a critical crosssection. The pressure and flowrate can be calculated by the convergent nozzle formula. The experiment results show that the ma... |
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| Keywords: | attitude control system regulator safety valve exhaust |
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