HOLE TUBE FORMING FOR CONTROLLING THE LIQUID DELIVERY OF PUMP OF DIPPED MOTOR

摘要

The invention relates to a shaft pipe construction surrounding submersible pump, for the regulation of liquid delivery. The essence of the invention is that the lower part of the shaft pipe is constructed as a spinning spiral case connected to the upper shaft space filled with pumped liquid by return chamber comprising regulating choke-element. Main advantages of the invention are that pump station with continuously and energetically economical regulation can be established by using the commercially available submersible pumps, further, simplicity and operational safety.