The average monthly water consumption of the plant is 30,000-50,000 tons. The water consumption is large and the water fluctuation is also large. The system consists of a pump unit of 7.5 KW (four units), a diaphragm pressure tank, a cycle soft start converter, a line programming controller, a pressure sensor, and a tube. Road system and other components. The frequency conversion cabinet consists of a frequency converter, a PLC, and low-voltage electrical appliances.
Normally, the frequency of one pump's frequency conversion is about 38HZ. When one pump has insufficient water supply, the first pump will be switched to the power frequency, and the frequency converter will soft start the second pump. If the flow rate is not enough, the second pump will switch the power frequency. Run, the frequency converter cabinet softly starts the third pump. If the water consumption is reduced, stop the pump in order according to the pump start sequence.
Normally, the frequency of one pump's frequency conversion is about 38HZ. When one pump has insufficient water supply, the first pump will be switched to the power frequency, and the frequency converter will soft start the second pump. If the flow rate is not enough, the second pump will switch the power frequency. Run, the frequency converter cabinet softly starts the third pump. If the water consumption is reduced, stop the pump in order according to the pump start sequence.
In addition, the system has a regular pump change function. If a pump is continuously operated more than X h, the frequency conversion cabinet can automatically stop the pump from switching to the next pump and continue the frequency conversion operation. The pump change time is set by the program and can be adjusted at any time as required. This can balance the running time of each pump and prolong the life of the overall pump set. 24 hours after the equipment is installed and tested