Portable Rotary Screw Air Compressor

1. Adopt latest technology to obtain high reliability.

2. Oil Cooling Permanent Magnetic Motor.

3. IP54 protection grade & heavy duty air filter, suitable for high dusty environment.

4. IE4 Efficient motor efficiency.

5. Most energy saving mode. Only work at loading.

6. Wide frequency range from 25% to 100%.

7. Premium Magnetic material resist more than 180℃ temp.

10 hp portable rotary screw air compressor control system

1. Motor starting (buck or Y operation)

During this period, the (three-phase) solenoid valve is not electric, the intake valve is fully closed, and the vent valve is fully open. At this time, the intake side becomes a vacuum. The lubricating oil required by the compressor and bearings is guaranteed by the pressure difference between the compression chamber and the oil and gas barrel. 10 hp portable rotary screw air compressor

2, the motor full pressure movement (full pressure or operation)

Control (three-phase) cut after operation, all electric solenoid valve, barrels of oil and gas pressure gradually increases, when the pressure in the barrel of oil and gas gradually risen to more than 0.15 MPa, the inlet valve fully open, so the pressure inside the barrel increases rapidly, the compressor started full load operation, when the pressure rose to 0.45 ~ 0.50 MPa, the minimum pressure to maintain valve fully open, the air output. 10 hp portable rotary screw air compressor

3, heavy load/no load operation

When the exhaust pressure reaches the upper limit set by the system, cut off the power supply, the (three-phase) solenoid valve is closed, so the intake valve is closed, and the release valve is fully open to discharge the air in the oil and gas barrel into the atmosphere. At this time, the compressor is running in the state of no load, and the required lubricating oil is guaranteed by the difference between the pressure in the compression chamber and the oil and gas barrel. When the pressure of the pipeline system drops to the limit set by the system, the power supply is connected again, the (three-phase) solenoid valve is opened again, the intake valve is also fully open, and the relief valve is closed, and the compressor runs again with load. 10 hp portable rotary screw air compressor

4, capacity adjustment operation

When the exhaust pressure gradually rises and does not reach the upper limit set by the system, it first reaches the set pressure of the pressure regulator valve, which makes the intake valve gradually turn down. At this point, the system has begun to adjust. If the pressure continues to rise, the intake valve is gradually closed until completely closed. On the other hand, if the system pressure is gradually reduced, the intake valve is gradually opened, and the intake volume and pressure gradually increase, until below the set value of the pressure regulator valve, then the adjustment is allowed to stop. If the gas consumption of the system is greatly reduced, the pressure rises too fast, and the speed exceeds the response ability of the capacity regulation, the pressure sensor gives a signal to the controller, and the controller will make the three-phase solenoid valve lose power, the intake valve is closed, and the air compressor unload runs. When pressure is low. 10 hp portable rotary screw air compressor

In the system set pressure value, the three-phase solenoid valve? Power, air inlet valve is opened, and the air compressor resumes heavy load operation.

5. Start and stop control of the fan

After the main engine is started, the fan will not run temporarily, when the exhaust temperature reaches 80-85℃ (it can be set on PLC). The fan will start automatically. When the temperature drops to 70℃, the fan will stop working. On the one hand, it can save electricity, on the other hand, it can make the exhaust temperature reach the temperature above the dew point in a short time, which is particularly important in wet areas in winter, as far as possible to make the water in the air not precipitate out. 10 hp portable rotary screw air compressor

6, downtime

After the stop button is pressed, the solenoid valve (three-phase) shuts off the power and the relief valve is fully opened to discharge the air in the oil drum into the atmosphere. After 10-15 seconds of delay, the motor stops running when the pressure in the oil drum drops to a certain value. 10 hp portable rotary screw air compressor

7. Emergency shutdown

When the exhaust temperature exceeds 105-110℃ or the motor is overloaded due to the action of the over-current protection device, the power will be cut off the motor without delay immediately stop, at the same time (three-phase) solenoid valve, inlet valve is closed, the release valve is fully open. The emergency stop button is allowed to make the machine stop immediately only when the unit is in operation (such as serious oil leakage, air leakage, exhaust temperature over 110℃, exhaust pressure over 1.1 times of the rated pressure without automatic stop, etc.). 10 hp portable rotary screw air compressor

8, no load too long automatic shutdown system

If when the use of the system reduced the volume of air compressor to keep on running without load and without load operation time more than a set time (typically set to 20 minutes), the air compressor chance to automatic stop, motor to stop operation, when the use of the system air volume increases, the system pressure is reduced, the air compressor chance to automatic starting, to supplement the air quantity, no-load running for too long the length of time setting a limit to motor start times per hour no more than two times as the principle, the customer can be used on its own in accordance with the conditions to be set. Do not make the motor start frequency frequent motor burn. 10 hp portable rotary screw air compressor

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