A low starting force water pump device and its control method

Abstract

Provided are a low-starting-force water pump device and a control method of the low-starting-force water pump device. The low-starting-force water pump device comprises a drive motor. One end of each rotating shaft of the drive motor is connected with a corresponding power input shaft of a first clutch device. A power output shaft of the first clutch device is connected with an input shaft of an energy storing device. The other end of one rotating shaft of the drive motor is connected with a power input shaft of a second clutch device. The power output shaft of the second clutch device is connected with a pump body. The control method of the low-starting-force water pump device comprises the steps that the first clutch device engages, and the second clutch device disengages; a first motor and a second motor start simultaneously and drive a flywheel of the energy storing device to rotate through the first clutch device; after the flywheel rotates stably, the first clutch device disengages, the second clutch device is kept in the disengaged state, and meanwhile the second motor stops; and the second clutch device engages, the first clutch device is kept in the disengaged state, and the pump body is driven to start and operate through the first motor and the energy storing device together. By the adoption of the low-starting-force water pump device and the control method of the low-starting-force water pump device, the starting force of the water pump device is low, electric energy loss is reduced, and production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to a low starting force water pump device and a control method thereof. 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. The technical parameters to measure the performance of the pump include flow rate, suction lift, lift, shaft power, water power, efficiency, etc.; according to different working principles, it can be divided into positive displacement pumps, vane pumps and other types. Positive displacement pumps use the change in the volume of their working chambers to transfer ene...

AI Technical Summary

Problems solved by technology

However, there are still disadvantages in adopting the above method: the load is small when it works normally after starting, and the use of a higher-power motor causes waste of electric energy and increases production costs.

Images