首先我们先介绍一下软管泵，软管泵又称蠕动泵。为了泵体污染流体或流体污染泵体的危险性，整个泵的装置中只有软管与介质接触。在一般场合下，软管泵使用的都是天然橡胶的软管。内层和外层都是完整光滑的天然橡胶，其目的是很强防磨损。适用于腐蚀性不高但磨损性很大的如泥浆以及无机物等等介质。而且一般适用于脂肪、油类或油脂的介质，以及有机化学物质。内层是橡胶，而外层是天然橡胶或者是复合橡胶。

First of all, lets introduce the hose pump, which is also called peristaltic pump. In order to eliminate the danger of the pump body contaminating the fluid or the fluid contaminating the pump body, only the hose in contact with the medium in the entire pump device. In general, hose pumps use natural rubber hoses. The inner and outer layers are completely smooth natural rubber, the purpose of which is to prevent abrasion. It is suitable for mediums that are not corrosive but very abrasive, such as mud and inorganic substances. And generally suitable for fats, oils or oils, and organic chemicals. The inner layer is rubber, while the outer layer is natural rubber or composite rubber.

 

软管泵性能<br />
软管泵性能的两个主要参数为排量和压力。排量以每分钟排出若干升计算?它与钻孔直径及所要求的冲洗液自孔底上返速度有关，即孔径越大，所需排量越大。要求冲洗液的上返速度能够把钻头切削下来的岩屑?岩粉及时冲离孔底，并可靠地携带到地表。地质岩心钻探时一般上返速度在0.4～1米/分左右。<br />泵的压力大小取决于钻孔的深浅冲洗液所经过的通道的阻力以及所输送冲洗液的性质等。钻孔越深管路阻力越大、需要的压力越高。随着钻孔直径，深度的变化，要求泵的排量也能随时加以调节。在泵的机构中设有变速箱或以液压马达调节其速度、以达到改变排量的目的。为了确掌握泵的压力和排量的变化软管泵上要安装流量计和压力表，随时使钻探人员，解泵的运转情况同时通过压力变化判别孔内状况是否正常以发生孔内事故。！