相关应用

煤炭，冶金，化工，环保等行业。一般意义的砂泵更多是指用在环保，挖沙，河道清淤等行业较多。这个系列砂泵主要以ES或者G系列的较多。除此之外，叫做砂泵的类型还有很多，石油领域的SB砂泵，矿业上的PS砂泵系列等等。本文介绍的砂泵主要以通常意义上的ES或G系列的挖沙，环保行业的用的砂泵。

REXROTH叶片泵均为卧式、单泵壳结构的离心泵。采用特殊的卡箍夹紧泵体与泵盖，泵的吐出口方向可在360度的任何一个位置，安装使用方便。 砂泵的轴承组件采用圆筒式结构，便于调整叶轮与泵体之间的间隙，维修时可整体拆除。轴承采用油脂润滑。砂泵的轴封形式有填料密封、付叶轮密封、机械密封。砂泵流道宽畅，汽蚀性能好，效率高，耐磨蚀。 传动方式主要有V型三角带传动、弹性联轴器传动、轮减速箱传动、液力偶合器传动、变频驱动装置，可控硅调速等。 过流部件材质采用高硬度的耐磨合金铸铁。

采用多种速度和多种变型方式，使得泵在最佳工况下运行。使用寿命长，运行效益高，能满足多类恶劣的输送条件。

REXROTH叶片泵主要用于由于颗粒太大以至于一般渣浆泵不能输送的强磨蚀性物料的连续输送。适用于挖泥、吸砂砾、疏浚河道、采矿及金属冶炼爆渣输送等。REXROTH叶片泵工作前，先将泵内充满液体，然后启动离心泵，叶轮快速转动，叶轮的叶片驱使液体转动，液体转动时依靠惯性向叶轮外缘流去，同时叶轮从吸入室吸进液体，在这一过程中，叶轮中的液体绕流叶片，在绕流运动中液体作用一升力于叶片，反过来叶片以一个与此升力大小相等、方向相反的力作用于液体，这个力对液体做功，使液体得到能量而流出叶轮，这时液体的动能与压能均增大。

REXROTH叶片泵依靠旋转叶轮对液体的作用把原动机的机械能传递给液体。由于离心泵的作用液体从叶轮进口流向出口的过程中，其速度能和压力能都得到增加，被叶轮排出的液体经过压出室，大部分速度能转换成压力能，然后沿排出管路输送出去，这时，叶轮进口处因液体的排出而形成真空或低压，吸水池中的液体在液面压力(大气压)的作用下，被压入叶轮的进口，于是，旋转着的叶轮就连续不断地吸入和排出液体。

REXROTH叶片泵以其结构简单、使用维修方便、效率较高而成为农业上应用最广泛一种水泵，但也因提不上水而令人倍感烦恼。现就提不上水这一。

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