加注系统控制端动态测试技术研究
2018-09-20俞文文
俞文文
摘要:针对传统的加注系统静态检测方法难以实现动态监控的问题,研究了加注系统状态信息获取方法,提出了稳态与瞬态特征相融合的高压气动球阀开闭性能检测与评价方法。通过位移传感器和压力传感器测取二位五通阀和高压气动球阀的动态信号,试验结果表明,各参数可有效反映加注系统的工作状态变化,能够为发射场故障检测及发射保障提供有力的支持。
Abstract: Aiming at the problem that traditional static detection method of fuel supply system is difficult to realize dynamic monitoring, a state information acquisition method of fuel supply system was studied, and a testing and evaluating method of switching performance of high pressure pneumatic ball valve was proposed, which was combined with steady and transient characteristics. Dynamic signals of two bit five through valve and high pressure pneumatic ball valve were measured by displacement sensor and pressure sensor. Testing results show that the parameters can effectively reflect the change of working state of fuel supply system, which can provide strong support for fault detection and launch support of launch site.
关键词:加注系统;控制端;动态检测;气动球阀
Key words: fuel supply system;control end;dynamic testing;pneumatic ball valve
中图分类号:TP212.6 文献标识码:A 文章编号:1006-4311(2018)28-0151-03
0 引言
随着发射技术的快速发展,对发射场设施设备也必须借助各种技术先进的检测诊断仪器设备,研究形成适用有效、检测准确、判断正确的发射场设施设备检测诊断技术,对发射场设施设备进行适时的性能状态检测,以确保及时进行故障诊断。从而及时、全面、准确地获取设施设备的性能状态和故障信息。在发射技术中,加注系统发挥着极为关键的作用。加注系统由驱动端、控制端、终端和监控端组成。其中的重要设备气动球阀作为加注系统的控制端更是发挥着其神经中枢的作用。对于加注系统的检测大多数只停留在静态检测[1],难以在加注系统运行过程中对其实施动态监控,以实现故障的及早诊断。长期使用过程中,系统控制端的单元二位五通阀和高压气动球阀可能会出现疲劳状况,导致打开或关闭不到位或出现较长时间的迟滞现象,影响系统的加注过程。……
