QY-S Permanent Magnet Variable Frequency Submersible Oil Pump

The QY-S permanent magnet variable frequency submersible pump is a high-efficiency, energy-saving submersible pump product that integrates a permanent magnet synchronous motor, variable frequency speed control, and an oil-immersed motor structure. It represents a systematic upgrade from traditional submersible pumps, achieving higher efficiency, greater adaptability, and more reliable operating performance through the combination of "permanent magnetization + variable frequency control + oil immersion."

Simply put, the QY-S series maintains the high head and strong adaptability of submersible pumps while making the equipment more energy-efficient, smarter, and more durable.

Core Technology and Working Principle

The core advantages of the QY-S permanent magnet variable frequency submersible pump stem from the synergistic application of three key technologies:

1. Permanent Magnet Synchronous Motor (High-Efficiency Power Core)

The motor rotor uses high-performance permanent magnet materials, eliminating the need for excitation current to generate a magnetic field. Compared to traditional asynchronous motors:

Significantly improved motor efficiency

Higher power density and more compact size

Maintains high efficiency even under low speed and low load conditions

This gives the QY-S series a significant energy-saving advantage during long-term operation. 2. Variable Frequency Speed ​​Control (Intelligent "Brain")

The QY-S is equipped with a dedicated variable frequency control system, which precisely controls the motor speed by adjusting the frequency, achieving:

Soft start: Low starting current reduces the impact on the power grid and equipment.

Stepless speed regulation: Flexible adjustment according to actual head and flow requirements.

On-demand energy supply: Avoids "oversized motor for a small load," effectively reducing operating energy consumption.

3. Oil-Immersed Motor Structure (Reliable Protection)

The motor interior is filled with insulating cooling oil:

The oil quickly dissipates operating heat, providing better cooling than water cooling.

It also lubricates the bearings, reducing wear.

The motor is safer in case of water level fluctuations or short-term liquid shortage.

Main Product Features

High efficiency and energy saving: Permanent magnet motor + variable frequency control, significantly higher overall energy efficiency than traditional submersible pumps.

Stable operation: Oil-immersed structure reduces vibration and temperature rise, suitable for long-term continuous operation.

Intelligent protection: Supports multiple protections such as overload, overcurrent, overtemperature, and phase loss.

Strong adaptability: Suitable for applications with different heads, well depths, and frequently changing operating conditions.

Low maintenance costs: Compact structure, low mechanical wear, and long service life.

Typical Application Scenarios

The QY-S permanent magnet variable frequency submersible pump is widely used in:

Agricultural irrigation and high-head water lifting

Industrial circulating water and water supply systems

Mining, oil fields, and deep well water extraction

Municipal engineering and large-scale water supply projects

Selection and Usage Recommendations

Must be used with a dedicated variable frequency control system.

Select the appropriate power level based on well depth, head, and flow rate.

For long-term operation, it is recommended to enable automatic speed regulation and protection functions.

The QY-S permanent magnet variable frequency submersible pump is a modern submersible pump product with "high efficiency, strong stability, and intelligent control" as its core advantages, especially suitable for applications with high requirements for energy consumption, reliability, and operation control.