How do water pumps work?

Answer 1

pumps generally are of 2 types.

centrifugal and reciprocating pumps.

centrifugal pump

The principle involved in these working of pumps is they act by centrifugal force.when water enters into pump along with air the pumping element starts starts rotating and as a result water is thrown to the side walls by centrifugal force and as a result water loses its velocity and since energy is neither created nor destroyed it s velocity converts into pressure head and this is pumped outwards with high pressure and then it again attains max velocity and comes out of pump.

reciprocating pump

while in these pumps the pumping element is piston rods.these also contains valves which control inward and outward flow of water.if it contains 2 valves it is called single valved and if it is contains 4 valves ,called double valved .it acts based on pressure head.

its working;

when water enters into pump the pumping element is allowed to draw backward or forward.since it is attached at one of its end if we drag this element to backward air also been dragged backward as result decrease in pressure occurs then water enters intom pump through one valve,

pumpwill be cylindrical shape and at bottom length of cylinder 2 valves will be placed.while at upper length of cylinder there placed 2 valves which are opposite to bottom length of valves.water enters into pump first through 1st valve at bottom length,.while valve opposite to this will no discharge water because of absence of pressure.so then if we push pump again forward pressure will be more in left side while less in right of u.so water moves to right of pump and again if we move this piston to right pressure increases again on right and water been pushed to out at valve present at upper length of cylinder.

note;the pump is placed horizontally that is facing its two lengths each other.

thus water pumps works.