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首页> 外文会议>Proceedings of the Fourteenth international pump users symposium >THE APPLICATION OF COMPUTER SIMULATION AND REAL TIME MONITORING TO MINIMIZE THE PRESSURE PULSATIONS IN COMPLEX PUMPING SYSTEMS
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THE APPLICATION OF COMPUTER SIMULATION AND REAL TIME MONITORING TO MINIMIZE THE PRESSURE PULSATIONS IN COMPLEX PUMPING SYSTEMS

机译：计算机模拟和实时监控在最小化复杂泵系统中压力脉动中的应用

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摘要

Chemical and process plants usually contain numerous valves and pumps in a complex network of pipe runs. Plant design and pump selection are usually based on steady state design conditions. However, the opening or closing of valves, or the starting or tripping of pumps, in the system can generate high unsteadyrnpressures that can damage piping and components in the system along with the pumping machinery itself. These unsteady pressures can result in large forces that are reacted at the pump nozzles. These loads can lead to casing failures or extrusion of the flange gasket. The radial and axial thrust bearings are directly impacted and premature failure is a possibility well before the B10 life based on steady loading has been reached. There are several simple formulae that can be used to determine the order of magnitude of the pressure pulsations that are generated due to various system upsets. However, accurate modelling requires a numerical solution that can be performed on today's high end personal computers.rnThe numerical simulation is used together with a new remote monitoring system recently introduced by the authors' company. This technology has simplified the collection of real-time accurate field data during all phases of pump operation. The ability to retrieve the data remotely has provided a cost effective means of expanding the piping simulator's database. This has enhanced the simulator's ability to accurately predict a pump piping system response to anomalous flow conditions.
机译：化学和加工厂通常在复杂的管道网络中包含大量的阀门和泵。设备设计和泵的选择通常基于稳态设计条件。但是，系统中阀门的打开或关闭或泵的启动或跳闸会产生很高的非稳态压力，这会损坏系统中的管道和组件以及泵送机械本身。这些不稳定的压力会导致较大的力，这些力会在泵喷嘴处反作用。这些负载可能导致外壳故障或法兰垫圈挤压。径向和轴向推力轴承直接受到冲击，并且在达到基于稳定载荷的B10寿命之前，很可能会过早失效。有几个简单的公式可用于确定由于各种系统故障而产生的压力脉动的量级。但是，精确的建模需要可以在当今的高端个人计算机上执行的数值解决方案。数值模拟与作者公司最近推出的新的远程监视系统一起使用。这项技术简化了泵运行所有阶段中实时准确现场数据的收集。远程检索数据的能力为扩展管道模拟器的数据库提供了一种经济高效的方法。这增强了模拟器准确预测泵管道系统对异常流量条件的响应的能力。

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