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离心泵一般由电动机带动

网址:www.liqingbeng.cn  2022-01-17  作者:admin    阅读:

离心泵一般由电动机带动,在启动泵前,泵体及吸入管路内充满液体。当叶轮高速旋转时,叶轮带动叶片间的液体一道旋转,由于离心力的作用,液体从叶轮中心被甩向叶轮外缘(流速可增大至15~25m/s),动能也随之增加。当液体进入泵壳后,由于蜗壳形泵壳中的流道逐渐扩大,液体流速逐渐降低,一部分动能转变为静压能,于是液体以较高的压强沿排出铜钟 一次性止血带 标志桩模具 钢丝轮 流水槽模具 防撞墙模具 检查井钢模具 不锈钢铸件 模锻件口流出。与此同时,叶轮中心处由于液体被甩出而形成一定的真空,而液面处的压强Pa比叶轮中心处要高,因此,吸入管路的液体在压差作用下进入泵内。叶轮不停旋转,液体也连续不断的被吸入和压出。由于离心泵之所以能够输送液体,主要靠离心力的作用,故称为离心泵。
Centrifugal pump is generally driven by motor. Before starting the pump, the pump body and suction pipeline are filled with liquid. When the impeller rotates at high speed, the impeller drives the liquid between the blades to rotate together. Due to the centrifugal force, the liquid is thrown from the center of the impeller to the outer edge oftuijian:www.zhilidajuyuan.com www.1997tc.cn www.shoufeidaomoju.cn
www.miaochuangw.cn www.fzqmoju.com.cn www.moju98.com www.bswy1688.com the impeller (the flow rate can be increased to 15-25mgs), and the kinetic energy also increases. When the liquid enters the pump casing, the flow channel in the volute pump casing expands gradually, the liquid flow rate decreases gradually, and part of the kinetic energy is converted into static pressure energy, so the liquid flows out along the discharge outlet with higher pressure. At the same time, a certain vacuum is formed at the center of the impeller because the liquid is thrown out, and the pressure Pa at the liquid level is higher than that at the center of the impeller. Therefore, the liquid in the suction pipeline enters the pump under the effect of pressure difference. The impeller keeps rotating, and the liquid is continuously sucked in and pressed out. Because the centrifugal pump is able to transport liquid, mainly rely on the role of centrifugal force, it is called centrifugal pump.

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