Model description

Model description for TYC series high-efficient intelligent screw pump ground direct drive equipment

Technical parameters

　1. Compared with the traditional belt type screw pump ground drive - obvious advantages

Ø  Strong overload capability, long duration, preventing a big horse pulling a small carriage, excellent performance

Ø  Soft start technology realizes reliable shutdown, preventing high-speed reverse rotation, good safety

Ø  The gravity center is concentric with oil well without yaw, which effectively reduces the problem of packing leakage

Ø  Stable operation, maintenance-free, cancellation of the gearbox and the belt, simple operation

Ø  Low operating noise, suitable for the urban area, especially operation in the residential area

Ø  High system efficiency, obvious energy saving, the formula is as follows:

in which: ƞ - Screw pump system efficiency, %;

P_有 - Screw pump effective power, kW;

Q - Oil well fluid production rate, m³/d;

H - Effective lift, m;

p - Oil well fluid density, kg/m³;

g - Gravity acceleration, 9.8 m/s₂;

P_输入 - Screw pump input power, kW;

I - Measured current value, A;

U - Measured voltage value, V;

cos φ - Power factor.

　　2. Compared with the traditional belt type screw pump ground drive - efficiency analysis of both

Ø The efficiency of the asynchronous motor of the traditional driving equipment is 75％, and the power factor is 0.4. The transmission efficiency of the general belt is 92％, and the gear efficiency of the reducer casing is 92%. Therefore, the efficiency of the traditional mechanical screw pump is only: 75％x92％x92％＝63.5％.

Ø The efficiency of the direct-drive permanent magnet synchronous motor is generally 90％ (calculation coefficient of 90%), the frequency converter efficiency is 95％ to 97％ (calculation coefficient of 96%), and the reactive power saving is 5％. Therefore, the efficiency of the direct-drive screw pump motor is: 90％x96％＝86.4％.

Ø Therefore, compared with the traditional mechanical screw pump, the direct-drive screw pump saves power by 23%.

3. Compared with the traditional belt type screw pump ground drive - efficiency analysis of both

　Select the measured data of both equipment with similar production conditions (Daqing Oil Production Plant 6)

Comparison of current and daily fluid production rate (above table)

Ø It can be seen from comparison with the table that the system efficiency of the direct-drive device is improved by 12.5% than the belt driving device, and power is saved by 32%. It is consistent with the theoretical analysis results. Therefore, power saving of the direct-drive screw pump is obvious, realizing production increase and consumption reduction!

4. Comparison of repair and maintenance

　　The belt and reducer casing are removed from screw pump ground direct drive, and system operation is stable. There are rarely wearing parts except for daily bearing lubrication and maintenance. The failure rate is lower than that of the traditional belt drive, and it is time-saving and effort-saving for repair. The key component is the rare earth permanent magnet motor, the motor can be replaced for free in case of demagnetization within 10 years, and repair cost at the later stage is greatly reduced.

HXL series high-efficient intelligent screw pump ground direct drive equipment is widely applied in the mine, petroleum, building materials and other industries at the power input mechanism.

1. Elevation height: ≤ 1000m.

2. Environmental air temperature: -60℃ to 60℃.

3. Frequency: 0 to 50Hz.

4. Limit value of stator winding temperature rise (resistance method): ≤80K

5.Protection class: IP54.