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为了满足在EAST装置上开展高压气体注入缓解等离子体破裂实验研究需求,在单涡流驱动快速充气阀成功研制的基础上又研制成功了双涡流驱动快速充气阀。该快速充气阀由双涡流线圈驱动,且增加了一套可调节阀芯预紧力的弹簧预紧背压系统,双线圈驱动结构的采用使得阀体的体积更加小巧,同时阀体的开启性能更加优越;弹簧背压预紧系统使用,使得充气阀的工作安全性大为提高。经过平台测定,该充气阀的开启响应时间不大于0.15 ms,而通过选择合适的工作参数可以使快阀的整个开启脉冲周期控制在2 ms以内;而通过调节工作参数(气压和电压),充气阀在2 ms内的充气总量可以很方便的在0~10~(23)粒子数之间调节。该阀的成功研制为EAST装置开展等离子体破裂缓解研究提供了更加有效的杂质气体注入工具,该阀将应用于2014年秋季的EAST物理实验研究。
In order to meet the need of experimental research on high pressure gas injection to mitigate plasma rupture in EAST, a double vortex driven fast charge valve was successfully developed based on the successful development of single vortex driven fast charge valve. The rapid inflation valve driven by the double eddy current coil, and the addition of a set of pre-spring force adjustable spring preload back pressure system, dual-coil drive structure makes the body more compact size, while the body open More superior performance; spring back pressure pre-tightening system to use, making the work of inflatable valve safety greatly improved. After the platform is determined, the opening response time of the inflatable valve is not more than 0.15 ms, and the entire opening pulse period of the quick valve can be controlled within 2 ms by selecting suitable operating parameters; and by adjusting the working parameters (air pressure and voltage) The total amount of air inflated by the valve within 2 ms can easily be adjusted between 0 ~ 10 ~ (23) particles. The successful development of the valve provided a more effective impurity gas injection tool for EAST devices to conduct studies on plasma rupture mitigation, which will be applied to the Fall 2014 EAST physics experiment.