堆取料机液压缸管路防爆阀设计及其流体特性研究
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摘要
为了提高堆取料机俯仰液压缸的可靠性,设计了一种新型的液压缸管路防爆阀,并给出了防爆阀结构。运用ICEM CFD前处理及FLUENT软件对正常工作状态下的防爆阀进行仿真,得到了防爆阀在理想状态下的压力、流速、速度矢量图等。研究其流体特性是否满足实际工况的要求,以及在实际工况下流道内压降的变化对液压缸内部负载的影响。
In order to improve the reliability of the pitching cylinder of the stacker reclaimer, a new-type explosion-proof valve used in the pipeline of the pitching cylinder designed, and its structure was offered.ICEM CFD pre-treatment and FLUENT were applied to simulate the explosion-proof valve in normal operation conditions, and the diagram about pressure, flow and velocity vector in ideal conditions was obtained.In addition, the paper studied whether its fluid characteristics satisfied the requirements of actual operation conditions, and the influence of the variation of the pressure drop on the inner load of the pitching cylinder in actual operation conditions.
In order to improve the reliability of the pitching cylinder of the stacker reclaimer, a new-type explosion-proof valve used in the pipeline of the pitching cylinder designed, and its structure was offered.ICEM CFD pre-treatment and FLUENT were applied to simulate the explosion-proof valve in normal operation conditions, and the diagram about pressure, flow and velocity vector in ideal conditions was obtained.In addition, the paper studied whether its fluid characteristics satisfied the requirements of actual operation conditions, and the influence of the variation of the pressure drop on the inner load of the pitching cylinder in actual operation conditions.
引文
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[6]张红军,冯书亮,祖国栋,等.液压系统管路防爆阀原理分析及应用[J].建筑机械,2015(9):101-104.
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[8]李进,范英川,扎贵盼,等.悬臂式斗轮取料机防爆阀选型及改造[J].港口科技,2018(9):41-44.
[9]成大先.机械设计手册[M].北京:化学工业出版社,2011:216-217.
[10]水利水电规划设计总院.水电水利工程液压启闭机设计规范:NB/T 35020-2013[S].北京:中国电力出版社,2014:26.
[2]刘雅俊,赵静一,工智勇.悬挂液压系统中新型管路防爆阀的可靠性设计[J].机床与液压,2008,36(11):184-186.
[3]王丹丹,于哲.新型双向管路防爆阀在液压系统失压保护中的应用[J].液压与气动,2011(10):94-95.
[4]SONG Xueguan,PARK Y C,PARK J H.Blowdown prediction of a conventional pressure relief valve with a simplified dynamic model[J].Mathematical and Computer Modelling,2011,54:1-10.
[5]邢树鑫,李欲江.液压挖掘机防爆阀选用的试验研究[J].工程机械,2014,45(11):41-43.
[6]张红军,冯书亮,祖国栋,等.液压系统管路防爆阀原理分析及应用[J].建筑机械,2015(9):101-104.
[7]曾衡,初长祥,曾文偲.基于CFD的某型防爆阀内流场研究[J].煤矿机械,2015,36(1):81-85.
[8]李进,范英川,扎贵盼,等.悬臂式斗轮取料机防爆阀选型及改造[J].港口科技,2018(9):41-44.
[9]成大先.机械设计手册[M].北京:化学工业出版社,2011:216-217.
[10]水利水电规划设计总院.水电水利工程液压启闭机设计规范:NB/T 35020-2013[S].北京:中国电力出版社,2014:26.