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Comparison of Nozzle vs. Impeller Agitation in Quench Systems

机译:淬火系统中喷嘴与叶轮搅拌的比较

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While many quench tanks use propellers to promote fluid motion, other systems pump the quenchant through a series of small nozzles. Although propeller based systems are in one sense more straightforward, the direct connection to external drive systems and the internal flow control devices put considerable constraints on system design. In contrast, pumped systems require less space inside the quench tank and provide the opportunity to more directly apply the quench flow to the part surfaces. Due to piping system losses, however, less agitation may be provided for a given amount of input power. As a comparison of these approaches, CFD analyses are performed of idealized propeller and nozzle systems to determine their ability to generate flow for a given input power.
机译:虽然许多淬火罐使用螺旋桨促进流体运动,但其他系统通过一系列小喷嘴泵送淬火剂。尽管基于螺旋桨的系统在一个义上更简单,但与外部驱动系统的直接连接和内部流量控制设备对系统设计提供了相当大的限制。相比之下,泵送系统需要较少的空间在骤冷槽内,并提供更直接将骤冷流的机会施加到零件表面上。然而,由于管道系统损耗,可以为给定的输入功率提供较少的搅动。作为这些方法的比较,CFD分析是对理想化推进器和喷嘴系统进行的,以确定它们为给定输入功率产生流动的能力。

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