- Tubelator AI
- >
- Videos
- >
- Science & Technology
- >
- Classifications of Centrifugal Pump: A Comprehensive Guide
Classifications of Centrifugal Pump: A Comprehensive Guide
Learn about the various classifications of centrifugal pumps, including shape of impeller and casing. Discover the advantages of volute casings and vortex type casings for increased efficiency in this informative video by Professor Vishal Teller.
Install Tubelator On Chrome
Video Summary & Chapters
No chapters for this video generated yet.
Video Transcript
Hi, Professor Vishal Teller, welcome to my YouTube channel.
In this video, I teach you classifications of centrifugal pump.
The centrifugal pump is classified on a number of ways.
First, we start the classifications according to shape of impeller and casing means what
is the shape of the impeller.
delivered from here. Okay, so in this type of centrifugal pump, this impeller is surrounded
by volute caching, okay, or a spiral caching. Spiral caching means its shape is here increasing
gradually, its shape is like the spiral. Okay. And this outer part is also known as the volute
caching or a volute.
And in most of the centrifugal pumps are provided with the volute casing due to its simplicity
in the construction and this type of pump has a high crater adirosis which increase
the overall efficiency.
Second type is the vortex type casing.
So, here I showed you the vortex type casing.
Now in vortex type casing what happens?
So, in the void type casing,
So, water leaving from the impeller, water leaving from the impeller moves freely in
a vortex chamber, means this circular part is known as vortex chamber, in that it freely
moves, then after this water enters into this volute casing.
So, the velocity had gradually converted into the pressure.
this caching okay and this space between two guide vanes is area of this between
two guide vanes is gradually increased means the water coming out from this
impeller with very high velocity so this velocity is first converted into
pressure energy in the guide vanes then after it is converted the remaining
kinetic energy into
and third one is open impeller.
Now here you show these three different images.
This first one is the open type, second one is semi-open and third one is the closed one.
So that's type impellers.
Now in a closed impeller in all these three cases, that is the same impellers.
But what happened in this open type impellers, there is no plate both the sides of the impellers.
Okay.
and the saver type of this water.
Now third one is a closed type.
These type of impellers, the vans are covered with the metal side plate on both the side
means in this open plate both the side we provide the plate then it is converted into
the closed type and these arrangement provide the smooth passage for the liquids and reduce
the wear means water is flowing smoothly.
delivery tank that is a difference between this height from the water
supplied to the water delivered it is known as the head so that is classified
on the three way low head centrifugal pump medium head centrifugal pumps and a
high head centrifugal pumps medium head centrifugal pump means head is less than
15 meter means from ground level to our terrace that is height is less than 15
and another is the multi-state centrifugal pump. Single state means what?
The pump has only one impeller and one pump is called as a single stage and single stage pump
cannot produce sufficient high head or a higher pressure head efficiently and it is mostly used
for the lower pressures and lower discharge. Now another is the multi-state centrifugal
used when we are required a higher head means we are required to supply of water
in a higher distance from a low ground to the terrace so it is known as a in a
series connection so in series connection what happened the water is
Video Summary & Chapters
No chapters for this video generated yet.
Video Transcript
Hi, Professor Vishal Tewlar, welcome to my YouTube channel.
In this video, I teach you classifications of centrifugal pump.
The centrifugal pump is classified on a number of ways.
First, we start the classifications according to shape of impeller and casing means what
is the shape of the outer body of this casing.
According to that, it is classified that it is first is volute or a spiral caching type
pump.
Second is vortex or whirlpool caching type pump and diffuser type pumps.
So, we can understand first three type of this pump, then we move toward the second
classifications.
Here I show you the image of volute cachings.
Okay, means this is a centrifugal pump and this part is known as the eye of a centrifugal
pump.
This is the impeller and this curve shape is different impeller van and this outer part
is known as the volute casing and the water is
delivered from here.
Okay, so in this type of centrifugal pump, this impeller is surrounded by volute caching,
okay or a spiral caching.
Spiral caching means its shape is here increasing gradually, its shape is like the spiral.
Okay.
And this outer part is also known as the volute caching or a volute chambers and it's provided
gradually increasing area.
Okay.
in this, the liquid leaving the impellers means liquid is coming out from this
part and it's enter in this volute chamber means this space it is the enter
okay with a high velocity means due to centrifugal force the water is coming in
the outward direction from center to this side so its velocity is high okay
so high velocity liquids it's come into this volute casing and in volute casing
this velocity of a water is converted into a pressure energy.
And in most of the centrifugal pumps are provided with the volute caching due to its simplicity
in the construction and this type of pump has a high crater adirosis which increase
the overall efficiency.
Second type is the vortex type caching.
So, here I showed you the vortex type caching.
Now in vortex type caching what happens?
So, in the vortex type caching, we are adding one circular chamber.
So, it means it is a modification of a volute type caching.
So, in a volute type caching, this one circular part is added means it is a not any element,
but just the space between this impeller and caching is increased.
Means this is the space between this impeller and caching is increased.
It is known as a circular chamber.
So, one only circle is drawing.
OK so it is a further modified form of that and it is known as the Vortex Caching.
So, water leaving from the impeller, water leaving from the impeller moves freely in
a vortex chamber, means this circular part is known as vortex chamber, in that it is
freely moves.
Then after this, water is entering into this volute casing.
So, the velocity had gradually converted into the pressure head and water collected in a
chamber and it is discharged through this delivery pipe and this pump is reduced the
eddies to a considerable extent and improve the performance of the pump.
