Peristaltic pump drive selection note
Number of hits:3342017-01-06 08:03:56 Sources: http://www.jinriwei.cn/hyxw/n34.html
Peristaltic pump pollution: fluid contacts only the pump, not in contact with the pump body; peristaltic pump: high precision repeatability, stability and high precision; low shear stress, shear sensitive peristaltic pump is an ideal tool for conveying, strong erosion fluid; peristaltic pump sealing: good self absorption capacity, can prevent idling reflux; peristaltic pump maintenance is simple: no valves and seals; peristaltic pump with two-way flow equivalent transmission capacity; no liquid cargo transfer without any part of the pump damage; can produce up to 98% vacuum; no valves, mechanical seals and packing sealing device, there is no such occurrence of leakage and maintenance transfer factor; can be easily solid, liquid or gas-liquid mixed phase fluid, allowing fluid contained within the solid diameter tubular element diameter of 40%; it can transport all kinds of grinding, corrosion, oxygen sensitive Characteristics of materials and various food.
Peristaltic pump consists of three parts: drive, pump head and hose. The fluid was isolated in pump, quick change pump, fluid may be retrograde, can do the operation, low maintenance cost, etc. constitute the main competitive advantage of peristaltic pump.
A peristaltic pump drive can take any number (usually 2 or 4) to cluster together in any combination of standard type pump head or the easy load pump head, as long as no more than the maximum torque of the drive line. Drive motor is mainly stepper motor, the driver uses the current 64 subdivision drive, speed resolution of 0.1. The higher the speed precision of the stepper motor, the higher the control precision. For peristaltic pump drive selection should be noted:
1, fixed speed drive: it represents the most simple fluid delivery method. Peristaltic pump system can always maintain a constant speed during the whole operation, sometimes can also replace the peristaltic pump tubing size to change the flow.
2, variable speed drive: in some special need larger flow adjustment range of applications, can be considered to use variable speed drive. At the right time to pump the correct flow requires a certain amount of skill, variable speed drive can usually be between the minimum and maximum speed of cvt.
3, motor speed, deceleration ratio, as well as the percentage of speed adjustment is the choice of peristaltic pump driver to consider the three key factors. Help in the replacement of the cleaning pump suction line reversal characteristics of driver.
4, digital display: microprocessor controller to improve the operation level of peristaltic pump. Strict control and load regulation of the pipeline to ensure the smooth flow of fluid, just need a simple adjustment of your peristaltic pump system, you can display the digital display on the flow and other important settings guide.
5, remote control: peristaltic pump into the automation system for laboratory or industrial control has become increasingly important. Controllable features include: start or stop, reverse, pump, distribution or reproduction, speed, etc..