不锈钢离心泵的调节方式分析
不锈钢离心泵是广泛应用于化工工业系统的一种通用流体机械。不锈钢离心泵具有性能适应范围广包括流量、压头及对输送介质性质的适应性、体积小、结构简单、操作容易、操作费用低等诸多优点。通常，所选离心泵的流量、压头可能会和管路中要求的不一致，或由于生产任务、工艺要求发生变化，此时都要求对泵进行流量调节，实质是改变离心泵的工作点。离心泵的工作点是由泵的特性曲线和管路系统特性曲线共同决定的，因此，改变任何一个的特性曲线都可以达到流量调节的目的。目前，离心泵的流量调节方式主要有调节阀控制、变速控制以及泵的并、串联调节等。由于各种调节方式的原理不同，除有自己的优缺点外，造成的能量损耗也不一样，为了寻求佳、能耗小、节能的流量调节方式，必须全面地了解不锈钢离心泵的流量调节方式与能耗之间的关系(图\文www.wxjpby.com/index.asp)。
中译英：
Stainless steel centrifugal pump is widely used in the chemical industry system one kind of fluid machinery. Stainless steel centrifugal pump has to adapt to a wide range of performance including flow, pressure head and the conveying medium nature of adaptability, small volume, simple structure, easy operation, low operation cost etc.. Usually, the centrifugal pump flow, pressure head may be in the pipeline and the inconsistent, or because the production task, process requirements change, this time is required to pump flow regulation, essence is to change the operating point of centrifugal pump. Centrifugal pump working point is determined by the characteristic curve of pump and system characteristic to decide jointly, therefore, any change in a characteristic curve can achieve the purpose of regulating the flow rate. At present, flow control of a centrifugal pump are the main method of regulating valve control, speed control and pump, etc. and regulation of series. Due to the variety of regulation the principle is different, in addition to have their own advantages and disadvantages, resulting in energy loss is not the same, in order to seek the best, the minimum energy consumption, the energy flow rate regulation, must fully understand the stainless steel centrifugal pump flow adjustment and energy consumption of the relationship between.
