Electric motor screw pump

A technology of electric motor and screw pump, which is applied to machines/engines, liquid fuel engines, pumps, etc., can solve problems such as difficulty in lift, impossibility, leakage of motor heat dissipation, etc., and achieves the effect of easy process, convenient control and low cost

Inactive Publication Date: 2007-04-18
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the screw pump is driven by the motor outside the pump through the universal joint, which will not only increase the complexity of the structure, but also cause leakage and heat dissipation problems of the motor, and it is also difficult to adjust the flow rate and lift of the pump once the pump is working or it's not possible

Method used

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  • Electric motor screw pump
  • Electric motor screw pump

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Embodiment Construction

[0011] As shown in Figure 1, the interior of the stator (2) is a rubber lining (4), the middle of the rubber lining (4) is a working chamber (5), the rotor (6) is in the working chamber (5), and the rotor (6) is composed of Made of permanent magnet material, the two ends of the stator (2) are connectors (1), the stator winding (3) is fixed on the stator (2), and the stator winding (3) is connected to the power supply after the voltage-frequency controller (7) is connected in series superior.

[0012] When in use, turn on the power supply, the alternating current causes the stator winding (3) to generate an alternating magnetic field in the working cavity (5), and the alternating magnetic field acts on the rotor (6) with permanent magnetism, making the rotor (6) ) to rotate, and adjust the working voltage and alternating frequency of the stator winding (3) through the voltage-frequency control device (7), and then control the working state of the pump. Specifically, the head of...

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Abstract

The invention includes a stator, a rotor, a stator winding, a connecting head and a voltage-frequency controller. According to the motor principle, the stator of the motor is used as the stator of the motor is used as the stator of the motor screw pump and the rotor of the motor is used as the rotor of the motor screw pump, and meanwhile the voltage-frequency controller is used for controlling the working current and frequency of the motor screw pump, so as to regulate the lift and flow of the motor screw pump. Inside the stator there is a rubbe liner and in the middle of the rubbe liner there is a working cavity. The rotor made of the permanent-magnetic material is in the working cavity. At both ends of the stator there are connecting heads. The stator winding fixed on the stator is connected on the power supply after connecting in series with the voltage-frequency controller.

Description

technical field [0001] The invention relates to the field of screw pumps, in particular to a motor screw pump driven by magnetic force, which is applicable to certain requirements for transporting liquid without leakage and noise. Background technique [0002] At present, the screw pump is driven by the motor outside the pump through the universal joint, which will not only increase the complexity of the structure, but also cause leakage and heat dissipation problems of the motor, and it is also difficult to adjust the flow rate and lift of the pump once the pump is working Or just not possible. Contents of the invention [0003] In order to avoid and overcome the above-mentioned deficiencies, the object of the present invention is to provide a non-leakage and noise-free electric motor screw pump driven by magnetic force by referring to the principle of electric motor, which can realize the protection against huge poison, flammable, explosive and corrosive , easy-to-conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C5/00F04C14/00
Inventor 施爱平
Owner JIANGSU UNIV
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