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What Are the Factors That Contribute to the Decrease in Actual Efficiency of Precision Peristaltic Pumps?

Introduction to precision peristaltic pump


Precision peristaltic pump can be used to convey reagents, conduct comparative tests through different injection methods, and prove that the precision peristaltic pump has reliable performance, stable flow rate, and high accuracy, ensuring the authenticity and reliability of detection data. Hydride atomic fluorescence spectroscopy is a classic method for heavy metal detection and requires the cooperation of atomic fluorescence spectrometer. The tested sample is separated by a chromatographic column and then enters the ultraviolet digestion unit with the oxidant for digestion. Then, it enters the hydride generation system with the mixed reducing agent and inert carrier gas to generate gaseous hydrides of the detected elements, which are separated by gas-liquid separation and enter the atomizer for atomization, forming ground-state atomic vapor and producing atomic fluorescence under excitation for qualitative and quantitative analysis of chemical elements by detecting the wavelength and intensity of fluorescence.


What are the factors that cause the actual efficiency of the precision peristaltic pump to decrease?


The actual efficiency decline of the precision peristaltic pump is closely related to the following factors:


Hydraulic loss


Generally, the hydraulic loss of the precision peristaltic pump can be divided into two aspects, hydraulic conflict and partial hydraulic loss. Any problems in these two aspects can cause a decrease in the pump power. As for the reasons for these problems, it is necessary to consider the running time of the pump. The longer the running time, the more severe the wear and tear of the impeller will be. In addition, the guide vanes will also be damaged. If multiple parts are damaged, it will naturally cause hydraulic loss, resulting in a lower pump power. To improve the power in this situation, it is recommended to replace some parts of the device.


Cavitation


When using the precision peristaltic pump, it should be operated according to the standard. If the standard is violated, it is likely to cause cavitation in the pump. This phenomenon will not only lower the power of the precision peristaltic pump, but also cause loud noise and increase vibration amplitude. In short, careful preparation before starting the pump is necessary. If the cavitation frequency is high, it will shorten the life of the pump and cause significant damage to the pump.


Volume loss


In the field of precision peristaltic pumps, volume loss is also called leakage loss, which is related to volumetric power. Volumetric power is affected by two factors: post-treatment level and manufacturing and design. Under the premise of the same manufacturing and design, the worse the post-treatment, the more volume loss, resulting in lower power of the precision peristaltic pump.


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