Description

Inverter Pumps Overview

Inverter pumps are advanced water supply systems designed for efficient and intelligent operation. They are ideal for maintaining constant pressure, reducing energy consumption, and ensuring long pump life. Below is a detailed breakdown of their performance, working conditions, advantages, and applications.

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Performance Range:

• Max. Head: 250 m
• Max. Flow Rate: 270 m³/h
• Power Range: 0.37 to 45 kW

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Working Conditions:

1. Control Model: Frequency variable control (inverter-based).
2. Installation: Indoor or under covered areas protected against weather.
3. Ambient Temperature: +5 to +40℃.
4. Humidity: <90% (no condensing).
5. Liquid: Clean water.
6. Liquid Temperature: +5 to +70℃.
7. Max. Outlet Pressure: 10 bar.
8. Minimum Outlet Pressure: 0.02 bar.
9. Number of Pumps: 1-3 pieces per system.

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Advantages:

1. Constant Pressure Maintenance:
   • Maintains a set pressure regardless of water demand fluctuations (low or peak demand).
   • Eliminates peak pressure, protecting the pump and plant from damage.
2. Energy Efficiency:
   • Uses a very small accumulator.
   • Achieves up to 40% energy savings compared to standard on-off systems.
3. Pump Protection:
   • Integrated thermal protection for the inverter.
   • Pick current protection.
   • Protection against dry running and closed running.
4. Soft Start/Stop:
   • Reduces mechanical stress on the pump, ensuring longer pump life.
   • Prevents water hammering.
5. Intelligent Operation:
   • Automatically adjusts motor speed based on real-time pressure feedback.
   • Intelligent decision-making for pump on/off, speed adjustment, and pump exchange.
6. Compact and Quiet:
   • Low vibration and low noise operation.
   • No need for a large control box.

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System Design and Components:

1. Multistage Centrifugal Pumps:
   • Designed for second pressure boosting.
   • Equipped with individual inverters fixed on the pump motor for integration.
2. Inverter System:
   • All inverters in the system are interconnected and can communicate with each other.
   • Pumps can be exchanged automatically for optimal performance.
3. Pressure Sensor and Storage Tank:
   • Monitors real-time pressure and compares it with the set pressure.
   • Automatically adjusts motor speed to maintain constant outlet pressure.
4. Variable Speed Drive (VSD) Technology:
   • Uses Variable Voltage and Variable Frequency (VVVF) AC frequency conversion.
   • Combines with pressure sensing technology for precise control.

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Inverter Specifications:

• For Power ≤ 2.2 kW: Equipped with a 20-single power source inverter.
• For Power > 2.2 kW: Equipped with a three-phase power source model 8200 B inverter.

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Applications:

1. Water Supply Systems:
   • Second pressure boosting for residential, commercial, and industrial buildings.
   • Centralized water supply and boosting systems.
2. Energy-Efficient Solutions:
   • Ideal for systems requiring constant pressure and reduced energy consumption.
   • Suitable for applications with variable water demand.
3. Industrial and Domestic Use:
   • High-rise building water supply.
   • Irrigation systems.
   • Heating and cooling systems.

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Brief Introduction 1:

Inverter pumps are designed for second pressure boosting and consist of:

• Multistage centrifugal pumps.
• Converter (inverter).
• Pressure sensor.
• Storage water tank and accessories.

The system uses Variable Voltage and Variable Frequency (VVVF) AC frequency conversion technology combined with pressure sensing. It automatically adjusts motor speed and determines pump on/off to maintain constant outlet pressure.

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Brief Introduction 2:

• Each pump is equipped with an individual inverter, integrated with the pump motor.
• Inverters are interconnected, allowing pumps to communicate and exchange automatically.
• The system features low vibration, low noise, and no need for a large control box.
• Intelligent decision-making ensures optimal pump operation, improving system stability.

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Conclusion:

Inverter pumps are a smart, energy-efficient, and reliable solution for maintaining constant pressure in water supply systems. With advanced features like soft start/stop, pump protection, and intelligent control, they ensure long pump life and significant energy savings. Whether for residential, commercial, or industrial applications, inverter pumps provide a compact, quiet, and high-performance solution for your water supply needs.

Choose inverter pumps for a smarter, more efficient water supply system!

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