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May 18, 2022 View:

What matters should be noted when using the lobe pump

The lobe pump is a form of displacement pump. It is composed of a rotating rotor and a stationary pump body. It has no suction or discharge valves, and the relative motion between the rotor and the pump body changes the working volume and discharges the liquid by the squeezing action of the rotating rotor, while leaving space on the other side to form a low pressure so that the liquid is continuously drawn in.

lobe pump

Running
1. During the operation of the pump, the motor power and pump operation should be noted, and any abnormalities should be stopped to find the cause.
2. The mechanical seal should be free of leakage and heat.
3. For pump with packing seal, 1~3 drops per minute is allowed, if the leakage increases, slightly tighten the material ring can be used, no need to disassemble.
4. When mechanical stepless transmission is used, the speed is gradually adjusted according to the speed shown in the digital display after the machine is turned on, and it is strictly forbidden to turn the speed regulating disk when it is stopped, otherwise the induction reducer will be damaged.
5. Manual frequency regulation and automatic control can be used for those who use frequency converter to regulate speed.
6. Check the heat of pump and motor frequently, when the pump is in water cooling state, the temperature rise of bearing is 40℃. When the pump is in hot water insulation state, the bearing seat temperature is allowed to be 30℃ higher than the pump body temperature.
7. The flow rate cannot be adjusted by the valve of the inlet pipeline to avoid cavitation and vibration of the pump.
8. When the pump is running, it is forbidden to close all the inlet and outlet valves.