Water pump intelligent flow control method

Abstract

The invention discloses a water pump intelligent flow control method. The method comprises following steps that a flow meter is arranged on the inner wall of a water pump body so as to measure the current water flow in the water pump body; a frequency converter is arranged on a water pump motor to adjust the rotating speed of the motor; the water pump enters in the standby state, and whether waterexists or not is detected; the flow set by a user is compared with the maximum flow of the water pump; if the flow set by the user is smaller than or equal to the maximum flow of the water pump, butlarge than or equal to the minimum flow of the water pump, the flow set by the user is compared with the current water flow. The water pump does not need to be greatly changed, use is convenient, according to different needs, the liquid flow speed of the water pump can be manually adjusted, and the method is energy-saving and economic; meanwhile, whether water exists or not is detected, the waterlacking protection function is achieved, and the phenomena of burning, seal damage and the like caused by non-water operation of the water pump can be avoided.

Description

technical field [0001] The invention relates to a flow control method, in particular to an intelligent flow control method for a water pump. Background technique [0002] A pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsions, suspoemulsions and liquid metals, etc., and can also transport liquid and gas mixtures. and liquids containing suspended solids. [0003] The technical parameters of pump performance include flow rate, suction lift, lift, shaft power, water power, efficiency, etc.; according to different working principles, it can be divided into volumetric pumps, vane pumps and other types. [0004] Positive displacement pumps use the change in the volume of their working chambers to transfer energy; vane pumps use the interaction between rotati...

AI Technical Summary

Problems solved by technology

[0005] When the current water pump transports liquid, its flow rate is generally fixed, but in real life, some discharged fluid does not require high flow rate, which wastes energy and resources, and if the water pump with low kinetic energy is used to save For energy, on the one hand, different water pumps need to be replaced according to different needs, which is time-consuming and laborious; on the other hand, different water pumps need to be prepared, which requires a lot of investment