Fan water pump drive application field
Fan water pump special type inverter is mainly used in: central air conditioning, urban wastewater treatment system, urban water supply system, plant air blow and wind turbine in the wind turbine, pump load.
Inverter control water pump characteristics
1. Design of constant voltage energy saving control for water pumps.
2. Built-in PID and advanced energy-saving software.
3. You can implement a multi-point pressure timing function in one point.
4. Efficient energy saving.
5. Simple management, security protection, automated control.
6. Extend the life of equipment, protect the grid stability, reduce wear, and reduce the fault rate.
7. Implement the soft and braking function.
Pump inverter introduction
Fan water pump special type inverter is a special type of frequency converter that is specifically tailored to various fans and pump load. It is characteristic of the R & D personnel to fully understand the wind turbine, pump class, etc. The rated torque is relatively small, small current, and a new type of special type inverter for it is tailored to it after the PID control is required.
Why is the fan water pump load use a frequency converter energy-saving effect?
According to the basic law of fluid mechanics: The fan water pump load is a typical square spindle load, and its main feature is that the speed N and the torque T and the load power P have the following relationships: TαN2, PαN3. That is, the torque is proportional to the rotational speed square, and the power is proportional to the rotational speed. Usually, the fan water pump load is mostly based on the amount of full load work, most of the time is not working in full load, so as long as the average speed is slightly lowered, the load power drops very quickly, thus achieving energy saving. Effect.
However, when the motor is directly started, due to the speed of the speed, the windshield, the valve is used to adjust the air volume or flow, which not only causes the energy waste and causes the power grid impact and the vibration and water hammer due to excessive starting current.
When using a frequency converter speed, it is necessary to easily control the speed according to the actual process. For example, when the motor speed is 80% of the rated speed, the load power is rated (80%) of the rated power, that is, about 50%. This shows that the speed drop is 20%, and the energy saving is 40%. At the same time, the closed-loop constant pressure control can be convenient, and the energy saving efficiency will be further improved. Using the inverter avoids the start of the power grid, reducing the device failure rate, eliminating the vibration and water hammer, and extends the service life of the grid, and also reduces the capacity requirements and reactive power loss on the grid.
Changchun Hongbao is an export-oriented enterprise specializing in research, development, production, sales and technical services in power field products.
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