Can variable frequency technology be applied to large circulation water pumps?
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The water circulation rate is 40,000 m³/h, with a head of 55 m; the goal is to achieve energy savings! Existing contradiction: After frequency conversion, will the head pressure of the water pump be insufficient to meet the production requirements? Please everyone discuss it
If a variable frequency drive is used for the circulation water pump, the water pressure cannot be guaranteed； Many devices (especially those with pressure protection) will shut down in such situations. Additionally, 10,000 m3 of water is required, but during emergencies the demand is much higher; should we adjust the circulating water first and then address the users’ needs? Furthermore, recycled water is usually shared among several facilities using one water treatment plant, which is complicated and basically not feasible
It depends on the head of the circulation water pump and the pressure requirements of the system for the circulation water; if the flow rate of the circulation water pump is sufficient and the pressure is high, it is appropriate to install a variable frequency drive.
It should be possible, but the entire system is greatly affected by changes in circulating water; not every cooling point is influenced by outdoor temperatures.
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