Peristaltic Pump Final Show

8/6/2019 Peristaltic Pump Final Show

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Presented By:-

JOSEPH PAUL P.V.

ROLL NO:-53

S7 ME-1



CONTENTSy PRINCIPLEy MAIN PARTSy WORKINGy FLUID PILLOW y CHARACTERISTICSy CLASSIFICATIONy EFFECT OF ROLLERSy DRIVE SELECTIONy FLEXIBLE TUBEy TUBE SELECTIONy TUBE MATERIALSy TUBE DESIGNy ADVANTAGESy DISADVANTAGESy APPLICATIONSy CONCLUSIONy REFERENCES





MAIN PARTS

yFLEXIBLE TUBEyROLLERS/CAMS

(made symmetrical

)yROTOR

yCASING



WORKINGy The rollers squeezes

the tube forcing the

fluid along.y Restitution creates a

vacuum which furtherdraws the fluid into

the pump.





FLUID PILLOW

yThe volume of fluid in

between the 2 adjacentrollers is called as FLUIDPILLOW.

yFlow Rate = volume of fluidpillow * speed of rotor(rpm)* no of pillows in 1 min.



EFFECT OF ROLLERS

y If the no of rollers increase:-1.flow rate decreases.

2.more uniform flow3.high exit pressure.4.less tube life

y

If the no of rollers decrease:-1.flow rate increases.2.less uniform flow3.low exit pressure4.more tube life



CLASSIFICATION

1. ROTARY PUMP



2. LINEAR PUMP

(used to pump heavily viscous fluids)



3. 360 DEGREE PUMP

(large flow rate, long tube life, low exit pressure)



DRIVE SELECTION

yFixed speed type

y Variable speed type

yDigital input type



FLEXIBLE TUBE

y The tube of Peristaltic pumpis its heart.

y Its restitution creates suction

y its strength resists pressure

y its flex resistance determines

pumping lifey its bore defines the flow rate

y Its the most important part



TUBE SELECTIONyChemical Compatibility

yNon-contamination

yFlex Life

yClarity

y

StiffnessyPressure

yTemperature

y

Non-adhesive



TUBEMATERIAL

y Polyvinyl chloride(PVC) (hard, cheap. 10 70 c)

y Natural rubber( very cheap. 80-20 c)

y Acrylonitrile butadiene rubber( Buna N) (resistant to oils, grease, alkalis,detergents. 80 -10 c)

y Ethylene propylene diene rubber(EPDR) (resistant to ketones,alcohols, acids. 90 -10)

y Chlorosuphonyl polyethylene rubber(CSR) (resistant to bases & otheroxidizing fluids. 80 -10 c)

y Marpene, bioprene, chemsure, neoprene,stapure, pumpsil, fluorel, tygon, viton etc.



TUBE DESIGN1. Inner layer in various types

of rubber

2. Intermediate layerReinforced with nylon

3. Outer layer precision-

machined4. Outer most layer which is

roughened



ADVANTAGES

y Fluid does not contact any part of the pump exceptthe tubing.

y No Seals to leak, No valves to clog or wear

y Doesnt require expensive ancillary equipment

y Fewer parts to inventory

y Self priming (up to 30 ft. (8.8 m) in some models)

y tubing materials can be easily sterilized.

y Easily cleaned at the end of the day, saves time

y Hygienic

y Easily repaired (just have to change the tube)



Advantages(contd.)y Thus a peristaltic pump with a new pipe is like a

new pumpy Easy to use, little operator training requiredy Many types of tubing are available.y Wide selection of drives/motors(variable speed)y Is fully reversible to blow out clogged suction and

drain lines safely y Gentle pumping action

y No back flow(slip)y Accuratey Same pump could be used to pump other fluids

(just change the tube to suitable one)y

Ultimately cost effective.



DISADVANTAGES

yFlow not perfectly uniform

y

Cannot pump above 10/11 metersyUneconomical for long distance

pumping.

yHigh exit pressures cannot be obtainedySelection of tube should be done

carefully.



APPLICATIONSy Laboratory research.

y Pharmaceutical industry

y Food industry y Chemical industry

y Cosmetics industry

y Paint industry

y Paper industry

y Ceramic industry

y Beverage industry

y

Detergent industry



Applications(contd.)yTextile industry yManufacturing of glues & emulsions

yBlood transfusions & dialysis machines

y

Waste water & sewage treatmentyNuclear power plants

yManufacturing of bio-diesel

y

Pumping concrete in large construction works

yUnder ground water sampling

y Aquariums & sea water pumping.



CONCLUSIONy Thus peristaltic pumps have very low maintenance

cost and a trouble free service life.

y Its operations are simple and its easily repairable.y Best suited for pumping viscous, colloidal,

aggressive, volatile liquids.

y It has a promising future because as time passesmore and more highly developed & reinforced tubematerials are discovered.



REFERENCES

y Wikipedia.com

y watson-marlow.comy Coleparmer.com

y Freepatentsonline.com

y Lamdalabs.com

y Verderflex.com



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Peristaltic Pump Final Show