答: 一个管道系统要求有良好的调节性能,首先要求系统中的执行机构——阀门或挡板——本身具有良好的调节性能。但仅仅要求执行机构的调节性能好是不够的。如系统设计不合理仍不能得到良好的调节性能。 所谓阀门或挡板本身的调节性能好,是指在固定的压降下,其流量与开度的关系曲线成 A: A piping system requires good regulation performance. First, the actuators in the system—valves or dampers—have good tuning performance. However, it is not enough to just require the actuator to adjust its performance. If the system design is unreasonable, it still cannot obtain good regulation performance. The so-called regulation performance of the valve or the baffle itself means that under a fixed pressure drop, the relationship between the flow rate and the opening degree becomes