Pump start and stop introduction

2022-11-26 08:07:05
Pump start and stop: (i) Preparation before starting the pump 1. Turn the motor blades by hand, the impeller should be free from jamming and be flexible. 2. Open the inlet valve, open the vent valve to allow the fluid to fill the entire pump chamber, and close the vent valve. 3. Pan the centrifugal pump to bring the lubricant into the mechanical seal face. 4. Move the motor to determine the steering is correct. I start and run the pump 1. Fully open the inlet valve, close the discharge pipe valve. 2. Turn on the power, when the pump reaches the normal speed, then gradually open the valve on the discharge pipe and adjust to the required conditions. 3. Observe the instrument readings, check the shaft seal leakage, the normal mechanical seal leakage, <3 drops / min, check the motor, the bearing temperature ≤ 70 degrees C, if abnormal circumstances should be promptly addressed. (Iii) pump parking 1. Gradually close the discharge pipe valve, cut off the power. 2. Close the inlet valve. 3. If the ambient temperature is below 0 degrees C, the pump liquid should be depleted to avoid cracking. 4. If the long-term disabled, the pump should be disassembled and cleaned, packed and stored.

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