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蠕动泵

1881
  • Eugene Allen
用于无菌应用的液压机械中的蠕动泵机构。

(图片仅供参考)

蠕动型 泵 is a positive displacement pump where fluid is contained within a flexible tube fitted inside a circular pump casing. A rotor with several ‘rollers’ or ‘shoes’ compresses the tube as it turns. This compression wave moves along the tube, forcing the fluid to move. The fluid only contacts the tube’s interior, making it ideal for sterile applications.

The operating principle of a peristaltic 泵 is inspired by the biological process of peristalsis, such as in the human gastrointestinal tract. The core components are the flexible tubing, the rotor, a set of rollers or shoes attached to the rotor, and the pump housing or ‘track’ that holds the tube in place. As the rotor turns, the rollers progressively squeeze the tubing against the housing, creating a temporary seal. This seal separates a ‘pillow’ or pocket of fluid. The rotation of the rotor moves this pocket along the tube from the inlet to the outlet.

One of the primary advantages of this design is that the pumped fluid is completely isolated from the pump’s mechanical components. This prevents contamination of the fluid and protects the pump from corrosive or abrasive media. This makes peristaltic pumps invaluable in sterile environments like medicine and biotechnology. They are also sealless, eliminating a common point of failure and leakage in other pump types. The gentle pumping action is suitable for shear-sensitive fluids, such as live cells or large proteins, that would be damaged by the high-speed impellers of centrifugal pumps.

Flow rate is determined by the rotor speed and the tube’s inner diameter, making them excellent for precise metering and dosing applications. However, they do have limitations. The flow is inherently pulsating, although this can be mitigated by using more rollers. The flexible tubing is a consumable part that wears out over time and requires periodic replacement.

UNESCO Nomenclature: 3313
- 机械工程

类型

物理设备

中断

重大的

用法

广泛使用

前体

  • 了解食道等生物体的生物蠕动
  • 开发柔性、弹性材料,如硫化橡胶,用于管道
  • 机械工程在制造旋转机构方面的进步
  • 运动流体的正排量概念

应用程序

  • 医用输液泵和透析机
  • 在水处理和游泳池中添加化学品
  • 在制药生产中泵送无菌介质
  • 食品加工,用于处理酱汁等剪切敏感产品
  • 精确流体计量的分析化学
  • 混凝土泵送

专利:

  • US249287

潜在创新理念

  • 用于高通量实验室筛选的多通道蠕动泵
  • 带有集成传感器的蠕动泵可预测管道故障
  • 采用多个偏置辊的低脉动设计
  • 用于生物制药应用的一次性泵头
  • 智能蠕动泵,配备 Wi-Fi 连接,可进行远程监控和控制
  • miniature peristaltic pumps for 可穿戴 药物输送系统
  • peristaltic pumps with advanced tubing materials for improved chemical resistance and 长寿
  • 基于实时测量的超精确流量控制闭环反馈系统
  • 专为粘性生物材料 3D 打印设计的蠕动泵
  • 用于农业营养物自动定量给料的太阳能蠕动泵
Related to: peristaltic pump, positive displacement, tubing pump, roller pump, medical pump, sterile pumping, dosing pump, shear-sensitive, fluid metering, sealless pump.

历史背景

蠕动泵

1850
1867
1875-01-01
1881
1884
1890
1890
1850
1860
1870
1876
1882-01-01
1886-04-23
1890
1897

(如果日期未知或不相关,例如“流体力学”,则提供其显著出现的近似估计)

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