阀门选择的关键步骤“动态特性”

译文：
在选择控制阀时，我们一般会考虑一些传统因素，例如压力额定值、压力降、流动介质、温度和成本等。但是随着时代的变迁和科学技术的不断进步，阀门设计也在与时俱进，生产流程的成本效益特性与以前相比大大提高。这就使得以前必须考虑的传统因素的重要性大大削弱，而评估动态特性成了选择阀门的关键因素。 在这里，我们始终强调“动态特性”是选择阀门的关键：如果我们仅仅通过对阀进行的测量结果，很难得出阀门在实际运行条件下将会表现出什么样的性能。传统理论认为，仔细调节静态因素将会优化阀的性能，但是事实让我们认识到情况并非总是如此。 通过研究人员和生产商成千上万次的性能检查让我们看到，许多通过考虑传统因素而选择的生活用阀对于优化控制回路性能并不能产生很大的预期效果。有专业的调查研究证明，阀的动态特性对于降低流程易变性有很重要的作用。更有数据证明，在许多流程中，不同的阀门降低流程易变性的幅度即使相差很小也能够大幅度提高生产效率并减少废物，取得巨大的经济效益。 传统的看法认为，流程优化的改进总是来自于控制室控制仪表的升级。但是根据得出的专业测试数据，如果我们使用相同控制仪表，阀的动态特性将对回路性能产生重要影响。 　　

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原文：
Control valve in the selection, we will generally consider the traditional factors, such as the pressure rating, pressure drop, mobile media, temperature, and costs. But with changing times, and scientific and technological advances in valve design is also advancing with the times, the cost-effectiveness characteristics of the production process than in the past been greatly enhanced. This makes the Water Power Control Valvesformer must take into account the importance of traditional factors greatly weakened, while the assessment of dynamic characteristics of the valve has become a key factor in selection. Here, we have always stressed the "dynamic characteristics" is to select the valve key: if we only by the measurement results of the valves is difficult to draw the valve under actual operating conditions will be shown what kind of performance. Traditional theory suggests that carefully regulate the static factors will optimize valve performance, but the fact that let us recognize that this is not always Gate Valvesthe case. By researchers and manufacturers tens of thousands of times the performance of inspections so that we can see, many of the traditional factors by considering the choice of living with the valve control circuit for optimizing performance and can not produce much desired results. Have a professional survey of studies have shown that the dynamic characteristics of valves to reduce process variability for a very important role. More data to prove that in many processes, different valves to reduce process variability of even a small difference can Check Valvessignificantly improve production efficiency and reduce waste, made great economic benefits. The traditional view is that process optimization improvements are always controlled from the control room instrumentation upgrade. However, according to the professional test data obtained, that if we use the same control instruments, valve dynamic characteristics will have an important impact on circuit performance.