原文:
蠕动泵的工作原理
蠕动泵通过对泵的弹性输送软管交替进行挤压和释放来泵送流体。就象用两根手指夹挤软管一样,随着手指的移动,管内形成负压,液体随之流动. 蠕动泵就是在两个转辊子之间的一段泵管形成枕形流体。枕的体积取决于泵管的内径和转子的几何特征。流量取决于泵头的转速与枕的尺寸、转子每转一圈产生的枕的个数这三项参数之乘积。枕的尺寸一般为常量。拿转子直径相同的泵相比较,产生较大枕体积的泵,其转子每转一圈所输送的流体体积也较大,但产生的脉动度也较大。这与膜阀的情形相似。而产生较小枕体积的泵, 其转子每转一圈所输送的流体体积也较小;而且,快速、连续地形成的小枕使流体的流动较为平稳。这与齿轮泵的情形相似。
具有双向同等流量输送能力;无液体空运转情况下不会对泵的任何部件造成损害;能产生达98%的真空度;没有阀、机械密封和填料密封装置,也就没有这些产生泄露和维护的因素;能轻松的输送固、液或气液混合相流体,允许流体内所含固体直径达到管状元件内径40%;可输送各种具有研磨、腐蚀、氧敏感特性的物料及各种食品等;仅软管为需要替换的部件,更换操作极为简单;除软管外,所输送产品不与任何部件接触。
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译文:
Peristaltic pump works
Peristaltic pump through the flexible delivery hose pump alternately squeeze and release to pump fluid. The same as two fingers pinching hose, with the finger movement, the formation of vacuum tube, liquid flows along. Peristaltic pump rollers in the two turn a section of pipe between the formation of pillow-shaped fluid. Pillow size depends on the pump tube diameter and the rotor geometry. Flow depends on the speed of the pump head and the pillow's size, the rotor pillow generated each turn the number of the product of these three parameters. Pillow size is generally constant. Take the same pump rotor diameter compared to generate a larger volume pump pillow, its rotor by each turn has a larger volume of fluid delivered, but also produced a greater degree of fluctuation. This is similar to the case of membrane valves. Resulting smaller size pillow pump, the rotor with each turn the volume of transmission fluid is also small; Moreover, the rapid, continuous formation of a small pillow so that the fluid flow is relatively stable. This is similar to the case of gear pumps.
Two-way traffic with the same transmission capacity; no case of liquid air operation will not damage any part of the pump; can produce up to 98% vacuum; no valves, mechanical seals and packing seals, there is no leakage and maintenance of these produce factors; can easily transport solid, liquid or gas-liquid mixed phase fluid, allowing the body solids flow tube diameter bore 40% of the components; can transport all kinds of abrasive, corrosive, oxygen-sensitive properties of materials and a variety of food ; only hose in need of replacement parts, replacement operation is extremely simple; addition to hose things, the transportation products do not touch any components.