Peristaltic pump is a pump with a unique working principle, which mainly realizes liquid transportation through peristaltic motion. The working principle of a peristaltic pump is as follows:
Structure: A peristaltic pump usually consists of a flexible pipe and a roller or rotor that can squeeze the pipe. One end of the pipeline is connected to the feed port, and the other end is connected to the discharge port.
Squeeze the pipeline: When the peristaltic pump starts working, the roller or rotor will roll along the length of the pipeline. As they roll, they squeeze the pipe, making its cross-section smaller and closed.
Create peristaltic waves: When the roller or rotor squeezes the pipeline, the liquid will be squeezed, causing the liquid inside the pipeline to form a peristaltic wave. A peristaltic wave is an undulation consisting of successive areas of contraction and relaxation, similar to the movement of a worm.
Transporting liquid: The peristaltic wave of the peristaltic pump will move from the inlet to the outlet, and at the same time push the liquid to the outlet. Whenever the extruded part passes through the feed port, the liquid will be drawn into the pipeline, and then transported along the pipeline to the discharge port along with the advancement of the peristaltic wave.
It should be noted that due to the particularity of the working principle, the peristaltic pump can achieve precise liquid control without pollution and leakage. In addition, peristaltic pumps are suitable for transporting high-viscosity, corrosive or volatile liquids, and have less stirring and shearing effects on the liquid, thus maintaining the integrity of the liquid. Therefore, it is widely used in chemical, medical, food, pharmaceutical and other fields.