Longer Peristaltic Pump
Flow range:0.0053-6000ml/min
2.Basic peristaltic pump:LabM series
Flow range:0.0053-3100ml/min
3.Industrial peristaltic pump
Speed range:0.1-600rpm
Description
Technical Parameters
The length of the peristaltic pump does not refer to its overall physical size, but refers to the length of its pump tube, the length of the pump tube will affect the delivery capacity of the peristaltic pump, flow accuracy and application scenarios. A number of factors need to be considered when choosing a longer peristaltic pump, including pump tube material, diameter, driver selection, and brand. In the process of use, it is also necessary to pay attention to the maintenance and maintenance of the equipment and avoid some common use errors. Through reasonable selection and use, the stable operation and flow accuracy of the peristaltic pump can be ensured.
The pump tube is too long may indeed have a certain impact on the use of peristaltic pump, but through reasonable selection and adjustment measures, you can minimize this impact and ensure the stable operation and good performance of peristaltic pump.
The length of the pump tube does have an effect on the flow accuracy, but this effect can be mitigated by reasonable selection and adjustment measures. In practical applications, it is necessary to choose the appropriate pump pipe length and corresponding optimization measures according to the specific needs and conditions to ensure the stable operation and good performance of the peristaltic pump.
Specifications
The relationship between pump tube length and flow accuracy
Definition of flow accuracy
Flow accuracy is one of the important indicators to measure the performance of peristaltic pump and other fluid conveying equipment, which reflects the stability and accuracy of flow when the equipment is transporting fluid.
The impact of pump tube length on flow accuracy
Flow fluctuation
As the length of the pump pipe increases, the frictional resistance and inertial action of the fluid in the pipe will also increase. This may lead to increased flow fluctuation when the peristaltic pump is transporting fluid, thus affecting the stability of the flow. The fluctuation of flow will directly affect the measurement of flow accuracy, resulting in deviation between the actual flow and the set value.
Pressure loss
An increase in the length of the pump pipe also causes an increase in the pressure loss of the fluid in the pipe. To overcome this pressure loss, the peristaltic pump may need to consume more energy to maintain the required flow rate. In practical applications, however, this increase in energy may lead to a decrease in flow accuracy, as additional energy consumption may introduce more uncertainties and errors.
Pipe deformation
Long pump pipes may be subjected to greater pressure and force when transporting fluid, resulting in deformation or wear of the pipe. This deformation or wear may affect the diameter and shape of the pump tube, which in turn affects the accuracy of the flow rate. For example, the deformation of the pipe may cause the flow state of the fluid in the pipe to change, which affects the measurement and accuracy of the flow rate.
Optimization measures
In order to reduce the impact of pump tube length on flow accuracy, the following optimization measures can be taken:
Choose the right pump pipe material and diameter
According to the nature of the fluid and transportation requirements, choose the right pump pipe material and diameter. This can reduce the friction resistance and pressure loss of the fluid in the pipe, thereby improving the stability and accuracy of the flow rate.
Optimize the layout of the pump pipe
Rationally plan the layout of the pump pipe to reduce bending and folding. This can reduce the resistance and energy consumption of fluid flow, while also helping to improve the accuracy of flow.
Regular maintenance and cleaning:
Regular cleaning and maintenance of the pump pipe to maintain its good working condition and extend the service life. This reduces the impact of pipe deformation and wear on flow accuracy.
Use high-precision flowmeters
When high-precision flow measurement is required, you can choose to use high-precision flowmeters to monitor and calibrate the flow output of the peristaltic pump. This improves the accuracy and reliability of flow measurements.
Application scenario
When the fluid needs to be transported over a long distance, a longer peristaltic pump can reduce intermediate connection points and switching equipment, thereby simplifying the system structure and reducing maintenance costs.
In some industrial applications, such as chemical, pharmaceutical, food processing and other fields, it is often necessary to transport fluids from one shop to another, or from one end of the production line to the other end. At this time, the equipment can meet the needs of long-distance transportation.
In some complex pipeline layouts, it may be necessary to use the device to adapt the orientation and layout of the pipeline.
For example, in a laboratory or production line, pipes may need to be routed around obstacles or along a specific path. At this point, the device can flexibly adapt to these layout requirements to ensure smooth and stable fluid delivery.
Although the length of the pump tube is not directly related to the flow rate, in some cases, a longer pump tube may mean a greater fluid transfer capacity.
Especially in scenarios that require large flow rates, such as the continuous delivery of large-scale chemical production and pharmaceutical production lines, the device can provide a more stable flow output to meet production needs.
In some special environments, such as high temperature, high pressure, strong corrosion or explosive environments, the device can reduce the direct contact between the fluid and the environment by increasing the length of the pipe, thereby improving the safety and stability of the system.
At the same time, some special materials of the pump pipe can also provide better corrosion resistance and high temperature resistance in these environments.
In scenarios that require continuous operation or long operating modes, such as laboratory cell tissue transport, specimen decolorization, perfusion and other experimental operations, longer equipment can provide more stable flow output and longer service life.
This helps to reduce the frequency of experimental interruptions and pump tube replacement, improving experimental efficiency and accuracy.
It should be noted that although a longer device has certain advantages in some scenarios, it also needs to consider its possible negative effects in practical applications, such as pressure loss and flow instability. Therefore, when selecting, it is necessary to make comprehensive consideration and balance according to specific application scenarios and requirements.
The material requirements of the transmitted fluid for the pump pipe
Fluid properties for pump pipe material requirements
Corrosiveness:
Corrosive fluids: For corrosive fluids, the pump pipe material needs to have excellent corrosion resistance. For example, you can choose stainless steel, titanium alloy, polytetrafluoroethylene (PTFE) and other materials, these materials can resist the erosion of a variety of corrosive media.
Non-corrosive fluid: For non-corrosive or less corrosive fluids, the choice of pump pipe material can be relatively flexible, such as ordinary steel pipe, plastic pipe, etc.
Temperature:
High temperature fluid: need to choose high temperature resistant pump pipe materials, such as silicone rubber, fluorine rubber, polyimide (PI) and so on. These materials can maintain stable performance in high temperature environment, without softening and deformation.
Low-temperature fluid: For low-temperature fluid, the pump pipe material needs to have good cold brittleness resistance to avoid cracking at low temperatures. Commonly used materials include stainless steel, titanium alloy and so on.
Viscosity:
High viscosity fluid: It is necessary to choose pump pipe materials with good elasticity, such as polyurethane (PU), nylon (PA) and so on. These materials can better adapt to the flow of fluids, reduce resistance, and improve transmission efficiency.
Low viscosity fluid: For low viscosity fluid, the choice of pump tube material can be relatively flexible, but also need to consider its wear resistance and pressure resistance.
The working environment of the pump pipe material requirements
Pressure
In high pressure environments, the pump pipe material needs to have a high compressive strength to ensure that it will not break due to excessive pressure during transmission.
Wear and tear
In the case of frequent fluid transfer or fluid containing impurities, the pump pipe material needs to have excellent wear resistance to reduce wear and extend service life.
Air permeability
For some gas-sensitive fluids, such as fluids susceptible to oxidation or anaerobic cell culture fluids, it is necessary to choose pump tube materials with low permeability to avoid gas entering the fluid and affecting its quality.
The transmission efficiency of the pump pipe material requirements
Flow control
In order to achieve accurate flow control, it is necessary to select pump pipe materials with good elastic recovery ability to ensure that the roller or rotor extrusion can be quickly restored to the original shape, resulting in stable creep waves.
Reduce leakage
In order to reduce the leakage of fluid during transmission, it is necessary to choose a pump tube material with good sealing performance, and ensure that the connection between the pump tube and the pump head is tight and reliable.
The impact on system parameter fluctuations
The peristaltic pump transfers liquid by squeezing the hose, and the performance of the hose directly affects the stability of the system and the accuracy of flow control. When the length of the peristaltic pump increases, the length of the hose also increases, which may lead to performance changes in the hose after a long time of use, such as weakening elasticity, inner diameter changes, etc. These changes will directly affect the accuracy and stability of flow control, resulting in fluctuations of system parameters.
As the liquid flows through a longer pipe, the pressure loss increases due to the effects of friction and gravity. The pressure loss in the peristaltic pump system will not only affect the accuracy of the flow control, but also may lead to the instability of the internal pressure of the system, and further aggravate the fluctuation of the system parameters.
Longer peristaltic pump systems may be more susceptible to interference from the external environment, such as temperature fluctuations, vibration, etc. These interference factors may lead to changes in the internal parameters of the system, such as flow rate, pressure, etc., thus affecting the stability of the system and the accuracy of the experimental results.
The system of the device usually means a more complex pipe layout and more connection points.This increases the risk of system failures such as leaks, clogging, etc. These faults will not only cause the fluctuation of system parameters, but also affect the smooth progress of the experiment and the reliability of the results.
Longer peristaltic pump systems require more time and effort to maintain and calibrate. Wear and performance changes of hoses, rollers, drivers and other components require regular inspection and replacement to ensure the stability and accuracy of the system. If the maintenance is not timely or the calibration is not accurate, the system parameters may fluctuate and the experimental results may be biased.
Sum up
The effects of longer peristaltic pumps on fluctuations in system parameters are manifold, including changes in hose performance, increased pressure losses, increased external interference, increased system complexity, and increased maintenance and calibration difficulties. These factors may lead to the instability of the internal parameters of the system, which will affect the accuracy and reliability of the experiment. Therefore, when selecting the peristaltic pump, the length and performance parameters of the peristaltic pump should be reasonably selected according to the experimental requirements and system configuration to ensure the stability and accuracy of the system. At the same time, regular maintenance and calibration of the peristaltic pump system is also an important measure to ensure the accuracy of the experimental results.
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