Analysis of the measurement result showed that under small discharge operating condition, the unsteady characteristic of the flow in the cone tube draft was evident and there existed obvious reverse flow in the centre zone of the draft cone tube and swirls near the tube wall. 结果表明:在小流量工况下,尾水管锥管内的瞬态流场呈现出明显的非定常特征,锥管中心处存在明显的回流,管壁处存在涡流;
Investigation of discharge coefficient of valve cone 圆锥阀流量系数的研究
According to the conditions for the ESD spark and the figuration, the ESD sparks can be classified into six types: the corona discharge, the brush discharge, the cone discharge, the human physical discharge, the spark discharge and the propagation brush discharge. 根据放电火花的产生条件和形状特点,静电放电火花分为电晕放电、刷形放电、料仓堆表面放电、人体放电、火花放电和传播型刷形放电6种典型放电类型。
The discharge coefficient and the spray cone angle are investigated systematically in this paper. 本文中对其流量系数及雾化角进行了系统的研究。
Treatment of a Fault About Discharge Cone and Tailpipe on Hydraulic Turbine 一起水轮机泄水锥脱落、尾水管损坏处理
It have been conducted that the ignition capability for different types of ESD spark are as follows: being very weak for corona discharge, being very strong for propagating brush discharge, and the effective ignition energy for cone discharge being confirmed as 10 mJ. 电晕放电的点燃能力很弱而传播型刷形放电的点燃能力很强;料仓堆表面放电的有效点火能量可考虑为10mJ;