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Intelligent control cabinet of PUS pumping unit

The energy-saving and control device of the PUS pumping unit intelligent control cabinet is an application product designed and produced according to the special working conditions of the oilfield pumping unit. The built-in feedback braking unit can feed the regenerative electric energy of the pumping unit back to the grid. Through the detection of the energy-saving monitoring center of each oil field, the comprehensive energy-saving rate can reach 20%~50%, and the energy-saving effect is significant. The pumping unit realizes the process control of soft start, soft stop and speed regulation operation. It has small starting current, stable speed, reliable performance, small impact on the power grid, and can realize arbitrary adjustment of upper and lower stroke speeds and closed-loop control operation. The user can determine the stroke, speed and liquid output of the pumping unit according to the liquid level and pressure of the oil well, which can effectively reduce energy consumption, improve pump efficiency, reduce equipment wear, and extend service life; It is suitable for the application of screw pump, tower crane, and beam pumping electric control system.
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1. Realize the process control of soft start, soft stop and speed regulation operation:

The starting current is small, the speed is stable, the performance is reliable, and the impact on the grid is small. It can realize the arbitrary adjustment of the upper and lower stroke speeds and the closed-loop control operation;

2. The stroke, speed and fluid production volume of the pumping unit can be determined according to the liquid level and pressure of the oil well:

Can effectively reduce energy consumption. Improve pump efficiency, reduce equipment wear and extend service life;

3. The special application program for pumping unit has simplified design and is suitable for direct debugging by ordinary oil producers;

4. Built-in input filtering device, full noise filtering, the interference to the power grid is 1/4 of the ordinary commercial inverter;

5. Full voltage automatic tracking, automatic calculation of the best braking torque, simplifying the operation of the application link;

6. The built-in feedback braking unit can feed the regenerative electric energy back to the grid. The built-in reactor and filter can be directly connected to the grid, and the energy feedback efficiency is as high as 97%. Compared with general-purpose inverters, it can save energy by 15%~25%, and its heat loss is less than 3% of resistance braking, which reduces heat sources and enhances safety;

7. All-round full-drive, compatible with permanent magnet synchronous motor and asynchronous motor control;

8. With multiple protection functions such as overcurrent, short circuit, overvoltage, undervoltage, phase loss, overheating, etc., to ensure safer and more reliable system operation;

9. Unattended and fully automatic design in the field, the pumping speed can be controlled arbitrarily without changing the mechanical equipment. Suitable for oil wells of different regions and structures, suitable for occasions with different climates and different conditions;

10. Optional wireless communication module for seamless connection with oilfield digital system;

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All energy-saving renovation projects in an oil field in Liaoning selected the intelligent control cabinet of the PUS oil field kowtow machine. According to the motor equipped in the oil well, this project adopts the intelligent control cabinet of the PUS oilfield pumping unit with two powers of 37KW/45KW, and a single pumping unit saves 12,000 kWh per year.

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