Permanent magnet variable-frequency constant-pressure self-priming pump

Abstract

The invention discloses a permanent magnet variable-frequency constant-pressure self-priming pump which comprises a permanent magnet brushless motor, a water pump and an intelligent control system. The inner end of the lower side part of a pump head of the water pump is connected to the output end of the permanent magnet brushless motor, the outer end of the lower side part of the pump head of the water pump is connected with a pressure tank, and the pressure tank communicates with a water outlet cavity. The intelligent control system comprises a wire cover box arranged on the permanent magnet brushless motor, an intelligent driving plate arranged in the wire cover box and a liquid crystal touch screen arranged at the top of the wire cover box, the intelligent driving plate is electrically connected with the permanent magnet brushless motor and the liquid crystal touch screen through power lines, a water pressure sensor extending into the pump head is further arranged on the pump head, and the water pressure sensor is electrically connected with the intelligent driving plate through a power line so as to feed back water pressure. The permanent magnet brushless high-speed and high-efficiency motor, an imported chip, the high-precision pressure sensor and a water control switch are adopted, the advanced electronic control technology is combined, intelligent frequency conversion and constant-pressure speed regulation are achieved, and the permanent magnet variable-frequency constant-pressure self-priming pump has the advantages of being energy-saving, efficient, capable of avoiding machine jamming and long in service life.

Description

technical field [0001] The invention relates to a self-priming pump, in particular to a permanent magnet variable-frequency constant-pressure self-priming pump. Background technique [0002] At present, the self-priming pumps on the market have the problems that the water flow switch is easily blocked and stuck, the service life is short, the outlet water pressure is unstable, and the degree of intelligence is low. Contents of the invention [0003] The invention discloses a permanent magnet variable frequency constant pressure self-priming pump, which solves the problems mentioned in the background technology. [0004] In order to solve the above technical problems, the present invention specifically adopts the following technical solutions: [0005] The permanent magnet variable frequency constant pressure self-priming pump includes a permanent magnet brushless motor, a water pump and an intelligent control system. The inner end of the lower part of the pump head of the...

AI Technical Summary

Problems solved by technology

[0002] At present, the self-priming pumps on the market have the problems that the water flow switch is easily blocked and stuck, the service life is short, the water outlet pressure is unstable, and the degree of intelligence is low.

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