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ChineseWhat is the efficiency of the Heavy Duty Air Compressor? How is the formula? Pump efficiency refers to the ratio of the effective power of the pump to the shaft power. η=Pe/P, the power of the pump usually refers to the input power, that is, the power transmitted by the prime mover to the pump shaft, so it is also called the shaft power, which is represented by P. The effective power is the product of the pump head, mass flow and gravitational acceleration. Pe=ρg QH (W) or Pe=γQH/1000 (KW), ρ: the density of the pumped liquid (kg/m3), γ: the weight of the pumped liquid γ=ρg (N/m3), g: the acceleration of gravity (m/s), mass flow Qm=ρQ (t/h or kg/s)
Pump maintenance and maintenance, check whether the pump, pipeline and joints are loose. Turn the pump by hand to see if the pump is flexible. Add bearing lubricating oil into the bearing body, observe that the oil level should be at the center line of the oil mark, and the lubricating oil should be replaced or supplemented in time. Unscrew the water diversion plug of the pump body, and pour water or slurry.
Close the gate valve, outlet pressure gauge and inlet vacuum gauge of the water outlet pipeline. Jog the motor to see if the direction of the motor is correct. Turn on the motor, when the pump is running normally, open the outlet pressure gauge and the inlet vacuum pump, and gradually open the gate valve as they show proper pressure, and check the motor load at the same time.
Try to control the flow and head of the pump within the range indicated on the sign to ensure that the pump operates at the highest efficiency point, so as to obtain the greatest energy saving effect. During the operation of the pump, the bearing temperature should not exceed the ambient temperature of 35C, and the maximum temperature should not exceed 80C. If abnormal sound is found from the pump, stop immediately to check the cause. When the pump is to be stopped, first close the gate valve and pressure gauge, and then stop the motor. In the first month of operation, the pump should replace the lubricating oil after 100 hours, and then change the oil every 500 hours. Adjust the packing gland frequently to ensure normal dripping in the packing chamber.
Regularly check the wear of the shaft sleeve, and replace it in time when the wear is large. When the pump is used in cold winter, after parking, the drain plug at the bottom of the pump body should be unscrewed to drain the medium to prevent freezing. If the pump is out of use for a long time, it is necessary to disassemble all the pumps, dry the water, apply grease to the rotating parts and joints, and store them properly.
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