濟南作為山東的重要城市，工業發展迅速，其中離心風機是通過將旋轉動能轉化為流體流動的風動力能來輸送流體的裝置。旋轉能量通常來自於電動機或汽輪機。離心機在工業上的應用比任何其他類型的風機都要多。

　　As an important city in Shandong, Jinan has developed rapidly in industryCentrifugal pumps are devices that are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an electric motor or steam turbine (in case of turbine-driven feedwater pumps). Centrifugal pumps are used in more industrial applications than any other kind of pump. The most common centrifugal pump is the volute pump.

　　離心風機通過葉輪的眼(低壓區)在高速旋轉。當葉輪和葉片轉動時，它們會將動量傳遞給進料流體。流體加速地從泵的追逐和真空中向外加速。

　　產生於葉輪的眼睛，不斷地吸引更多的液體進入泵。當流體的速度增加時動能增加。高動能流體從葉輪區域強製進入蝸殼。在體積中，流體通過一個不斷增加的交叉流動。

　　In the volute of the pump fluid enters the pump axially through the eye of the impeller (low pressure area) which rotates at high speed. As the impeller and blades rotate, they transfer momentum to incoming fluid. The fluid accelerates radially outward from the pump chasing and a vacuum is created at the impellers eye that continuously draws more fluid into the pump. As the fluid’s velocity increases its kinetic energy increases. Fluid of high kinetic energy is forced out of the impeller area and enters the volute. In the volute the fluid flows through a continuously increasing cross-sectional area, where the kinetic energy is converted into fluid pressure (according the Bernoulli’s principle).

　　每台離心機由數百個部件組成。有幾個部件是虛擬離心泵的共同點。這些組分可細分為濕部和機械部。泵的濕部包括那些決定泵的水力性能的部件。兩個主要的濕端是葉輪和機殼。在某些情況下，直接軸承可以水潤滑。機械端包括在殼體內支撐葉輪的部件。泵的機械端部包括泵軸、密封、軸承和軸套，結構非常嚴謹。

　　Centrifugal Pump-minEach centrifugal pump is made of hundreds of parts. There are a few components that virtually every centrifugal pump has in common. These components can be subdivided into the wet end and the mechanical end.

　　The wet end of the pump includes those parts that determine the hydraulic performance of pump. The two primary wet ends are the impeller and casing. In some cases the first radial bearing can be water lubricated. In this case also bearing can belongs to wet ends.

　　其實濟南離心風機的內部構造非常複雜，創新將是未來發展的一大步，相信工業離心風機還會為我國創造更大的價值。

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