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Analysis on Damage Causes for S-type Water Pipe of Converter Valve

机译:S型换向阀水管损坏原因分析

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A water leakage accident occurred in the S-type cooling water pipe of the converter valve that has been put into operation at the Suidong Converter Station, causing damage to the valve layer device, resulting in equipment outage and affecting the normal operation of the entire converter station. In order to explore the reason of damage caused by the cooling water pipe, and provide corresponding solutions, the causes of the damage to the cooling water pipe may be analyzed and eliminated one by one. It is found that the most likely cause of the damage is that the voltage equalizing electrode line and the cooling water pipe are too close. The air field between the two is severely discharged. This paper to analyzes the cause of the accident from the perspective of discharge, and then simplifies the equivalent modeling of the cooling water pipe and the equalizing electrode wire, and performs the electric field simulation. The simulation results show that when the distance between the cooling water pipe and the equalizing electrode line is small, the air field of the two will generate severe power, to damage the cooling water pipe.
机译:在遂东换流站投入使用的换流阀的S型冷却水管发生漏水事故,造成阀层装置损坏,设备停机,影响整个换流器的正常运行站。为了探究冷却水管损坏的原因并提供相应的解决方案,可以对冷却水管损坏的原因进行逐一分析和排除。发现损坏的最可能原因是均压电极线和冷却水管太近。两者之间的空气场已严重排出。本文从排放的角度分析了事故原因,然后简化了冷却水管和均压电极丝的等效建模,并进行了电场模拟。仿真结果表明,当冷却水管与均衡电极线之间的距离较小时,两者的空气场会产生严重的动力,从而损坏冷却水管。

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