Submersible Motor An Introduction

Introduction submersible pumps pdf.

Nowadays the practice of tube wells has increased a lot and is going on increasing continuously. The reason for this is the ever-increasing population and decreasing per capita amount of land. Today people do not have enough land available. A house and a well have to be arranged in a small piece of land. In small land, this is possible only when tube wells are built. 

Everyone knows what a tube well is. When a very narrow and very deep well is made with the help of machines, it is called a tube well or bore well. By constructing a very deep tube well, the inflow of water in it increases significantly. Their depth can often be anything from 100 feet to 150, 200, 250, 300 feet, etc. Its width is usually from 6 inches to 12 inches. Its shape is shaped like a tube or tube, hence the name tube well or tube well. 

Now the question arises that simple type electric pumps are often able to lift water from less depth. They are often able to draw water properly from a depth of 25 to 30 feet from the ground surface and can lift it up to the same height. Some pumps have a slightly higher capacity; But not so much that their suction pipe can be put in them and they can draw water. 

 It is to be known that some such electric pump sets have been installed underwater. There is also a system to keep it running. They are put inner the chir well (apan bel). This means increasing the height of the water head of the pump. Their size and type are also similar to ordinary type motors, so they cannot be put inside the borewell, and their head also does not exceed 50-60 feet.  

Now you have to know that the depth of tube wells is several hundred feet, that is why it is not possible to extract water from such a depth by these motors. Also, these motors cannot be inserted into tube wells. As an alternative to this, the submersible motor was invented. 

Tube wells have more depth and to allow enough water to the motors, they have to be placed well below the water label present in the tube well. 

They are designed in such a way that their power is not reducing but they are of such a small diameter that they can be inserted and removed in borewells with great ease. For this reason, their length is kept very long. And the length of this motor becomes very long. 

Not only this. The length of their impellers is also very long because the number of amplifiers involved in them is more than one; Which depends on the depth of the borewell. If the borewell is less deep So a submersible impeller with fewer amplifiers works. But if the depth of the borewell is more,

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 then more amplifiers have to be installed in proportion to the depth. This work is done by the motor manufacturer while determining the head of the motor. The number of impellers (bowls) and amplifiers is kept very high in submersible pumps that extract water from greater depths. 

The reason for this is to enable the motor to lift the water to a great height. For example, the length of the impeller of the pump used in mineral oil wells is kept very long. When the motor and impeller are combined, the length of the entire submersible pump becomes 3-4 feet. According to its power and capacity, there is a difference in its length. Information about their different sizes and types can be obtained from the pictures given above.

introduction of submersible pumps pdf.

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