Selection method of peristaltic pump, constant flow pump and hose pump and three steps
Introduction to the principle of peristaltic pump:
The peristaltic pump is also called a constant flow pump because the output flow is very stable. Because the peristaltic pump is a function of pumping fluid by squeezing the hose, it is also called a hose pump.
The mechanical principle of a peristaltic pump is very simple. It is caused by the runner squeezing the pump tube and rotating to push the fluid in the tube forward to generate fluid flow, just like using two fingers to squeeze a hose filled with liquid, as the finger moves, the tube A negative pressure is formed and the liquid flows.
Features of peristaltic pumps, constant flow pumps and hose pumps:
1. Clean and non-polluting: the fluid only passes through and contacts the peristaltic pump hose.
2, high precision: constant current, reproduction accuracy of up to 0.5%, flow can be precisely adjusted.
3. Low shear force: It is an ideal tool for conveying shear sensitive and aggressive fluids.
4, corrosion resistance: can transport a variety of fluids, such as organic melting machines, corrosive liquids.
5, can be idling, dry running: can also transport air or gas-liquid solid three-phase mixed transport.
6, with self-priming ability: can be self-priming, no need to pump, no need to empty.
7, the function of the cut-off valve, no siphon, no seals, a shut-off valve and a check valve function.
8. Two-way conveying function: the reverse pumping and suckback function can be realized by changing the direction of the pump runner.
9. Simple maintenance: only need to replace the peristaltic pump hose, no valve and seal replacement.
10, can withstand higher temperatures: peristaltic pump can continuously deliver liquids of 80 degrees Celsius.
How to choose a peristaltic pump, a constant flow pump and a hose pump:
The complete peristaltic pump system consists of the following three parts:
Peristaltic pump head + peristaltic pump tube + drive
The first step: determine the application requirements.
A, how much traffic is needed?
B. What chemical fluid needs to be pumped?
C, requirements in pumping: such as viscosity, back pressure, shear, solid.
Step 2: Select the pump type according to the flow rate
A, complete set of pumps for plug-and-play.
B, the parts that are assembled to the equipment.
C, only the pump head is needed.
Step 3: Select the pump head model and pump tube
A. Select the pump head and pipe diameter according to the flow university and running time.
B. Select the pump head and pump tube material according to the chemical fluid.
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lHigh Pulse Repetition Frequency (HPRF)
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SS-100 Touch Screen Trolley Ultrasound Diagnosis B Scanner
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Gynecology measurement: Uterus, cervix, endometrium, L/R ovary;
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