Multi-pump constant-pressure control system with mutual standby and roll-call modes

• Main Author: HE LINHUA
• Format: Patent
• Language: Chinese; English
• Published: 12.01.2018
• Subjects: BLASTING; FIXED CONSTRUCTIONS; HEATING; INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, ORDISTRIBUTING WATER; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SEWERAGE; WATER SUPPLY; WEAPONS

The invention discloses a multi-pump constant-pressure control system with mutual standby and roll-call modes. All water pump conversion buttons are independently and electrically connected with one another and correspondingly control water pumps, and the water pump corresponding to each water pump conversion button is switched between a manual state and an automatic state. A water pump control unit obtains a next water pump which begins to run or stops running from the water pumps in the automatic state according to a preset intelligent pump selection algorithm, and the water pump is driven by a frequency converter to begin to run or stop running to make overall output pressure keep constant. By means of the multi-pump constant-pressure control system with the mutual standby and roll-calling modes, multiple pumps are equally used and can stay in the standby and roll-call modes, perfect normal protection and emergency response functions are taken, the human operation and intervention are reduced, and the safe