Purification Technology Edition: Daily Question [2017-11-5]
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What preparations should be made before starting the pump, and what should be paid attention to after it starts running and during normal operation? Answer: Before starting the pump, the following preparations should be made: ① Conduct a thorough inspection of the pump. ②Fill the bearing housing with oil or activate the lubrication system. ③Turn the crank. ④Open the inlet valve to vent the system. ⑤Contact an electrician to test the motor’s insulation and restore power. ⑥Make sure to fully close the outlet valve before starting the pump. The following points should be noted after starting the pump and during normal operation: ① Check whether the inlet and outlet pressures of the pump are normal. ②Check whether the oil level in the bearing housing or the lubricating oil tank is normal. ③Monitor whether the bearing temperature and the motor stator temperature are within normal ranges, and during inspections touch the bearing housing with your hand to feel if it is hot. ④Monitor whether the vibration is normal and check whether the sound is normal. ⑤Check for leaks in the mechanical seal.
Before starting the pump, the following preparatory work should be carried out: ① Conduct a thorough inspection of the pump. ② Fill the bearing housing with oil or activate the lubrication system. ③ Turn the crank. ④ Open the inlet valve to vent the system. ⑤ Contact an electrician to test the motor’s insulation and restore power. ⑥ Make sure to fully close the outlet valve before starting the pump. The following points should be noted after starting the pump and during normal operation: ① Check whether the inlet and outlet pressures of the pump are normal. ② Check whether the oil level in the bearing housing or the lubricating oil tank is normal. ③ Monitor whether the bearing temperature and the motor stator temperature are within normal ranges, and during inspections touch the bearing housing with your hand to feel if it is hot. ④ Monitor whether the vibration is normal and check whether the sound is normal. ⑤ Check for leaks in the mechanical seal.
Answer: Before starting the pump, the following preparations should be made: ① Conduct a thorough inspection of the pump. ②Fill the bearing housing with oil or activate the lubrication system. ③Turn the crank. ④Open the inlet valve to vent the system. ⑤Contact an electrician to test the motor’s insulation and restore power. ⑥Make sure to fully close the outlet valve before starting the pump. The following points should be noted after starting the pump and during normal operation: ① Check whether the inlet and outlet pressures of the pump are normal. ②Check whether the oil level in the bearing housing or the lubricating oil tank is normal. ③Monitor whether the bearing temperature and the motor stator temperature are within normal ranges, and during inspections touch the bearing housing with your hand to feel if it is hot. ④Monitor whether the vibration is normal and check whether the sound is normal. ⑤Check for leaks in the mechanical seal.
Before starting the pump, the following preparations should be made: ① Conduct a thorough inspection of the pump. ②Fill the bearing housing with oil or activate the lubrication system. ③Turn the crank. ④Open the inlet valve to vent the system. ⑤Contact an electrician to test the motor’s insulation and restore power. ⑥Make sure to fully close the outlet valve before starting the pump. The following points should be noted after starting the pump and during normal operation: ① Check whether the inlet and outlet pressures of the pump are normal. ②Check whether the oil level in the bearing housing or the lubricating oil tank is normal. ③Monitor whether the bearing temperature and the motor stator temperature are within normal ranges, and during inspections touch the bearing housing with your hand to feel if it is hot. ④Monitor whether the vibration is normal and check whether the sound is normal. ⑤Check for leaks in the mechanical seal.
Answer: Before starting the pump, the following preparations should be made: ① Conduct a thorough inspection of the pump. ②Fill the bearing housing with oil or activate the lubrication system. ③Turn the crank. ④Open the inlet valve to vent the system. ⑤Contact an electrician to test the motor’s insulation and restore power. ⑥Make sure to fully close the outlet valve before starting the pump. The following points should be noted after starting the pump and during normal operation: ① Check whether the inlet and outlet pressures of the pump are normal. ②Check whether the oil level in the bearing housing or the lubricating oil tank is normal. ③Monitor whether the bearing temperature and the motor stator temperature are within normal ranges, and during inspections touch the bearing housing with your hand to feel if it is hot. ④Monitor whether the vibration is normal and check whether the sound is normal. ⑤Check for leaks in the mechanical seal.
Before starting the pump, the following preparatory work should be carried out: ① Conduct a thorough inspection of the pump. ② Fill the bearing housing with oil or activate the lubrication system. ③ Turn the crank. ④ Open the inlet valve to vent the system. ⑤ Contact an electrician to test the motor’s insulation and restore power. ⑥ Make sure to fully close the outlet valve before starting the pump. The following points should be noted after starting the pump and during normal operation: ① Check whether the inlet and outlet pressures of the pump are normal. ② Check whether the oil level in the bearing housing or the lubricating oil tank is normal. ③ Monitor whether the bearing temperature and the motor stator temperature are within normal ranges, and during inspections touch the bearing housing with your hand to feel if it is hot. ④ Monitor whether the vibration is normal and check whether the sound is normal. ⑤ Check for leaks in the mechanical seal
Before starting the pump, the following preparations should be made: ① Conduct a thorough inspection of the pump. ②Fill the bearing housing with oil or activate the lubrication system. ③Turn the crank. ④Open the inlet valve to vent the system. ⑤Contact an electrician to test the motor’s insulation and restore power. ⑥Make sure to fully close the outlet valve before starting the pump. The following points should be noted after starting the pump and during normal operation: ① Check whether the inlet and outlet pressures of the pump are normal. ②Check whether the oil level in the bearing housing or the lubricating oil tank is normal. ③Monitor whether the bearing temperature and the motor stator temperature are within normal ranges, and during inspections touch the bearing housing with your hand to feel if it is hot. ④Monitor whether the vibration is normal and check whether the sound is normal. ⑤Check for leaks in the mechanical seal
Answer: Before starting the pump, the following preparations should be made: ① Conduct a thorough inspection of the pump. ②Fill the bearing housing with oil or activate the lubrication system. ③Turn the crank. ④Open the inlet valve to vent the system. ⑤Contact an electrician to test the motor’s insulation and restore power. ⑥Make sure to fully close the outlet valve before starting the pump. The following points should be noted after starting the pump and during normal operation: ① Check whether the inlet and outlet pressures of the pump are normal. ②Check whether the oil level in the bearing housing or the lubricating oil tank is normal. ③Monitor whether the bearing temperature and the motor stator temperature are within normal ranges, and during inspections touch the bearing housing with your hand to feel if it is hot. ④Monitor whether the vibration is normal and check whether the sound is normal. ⑤Check for leaks in the mechanical seal.
Before starting the pump, the following checks should be performed: First, check whether the pump’s foot bolts and grounding wires are in good condition； Second, turn the pump by hand without powering it on (remember to do this after powering it on) ； Third, check whether the oil level in the pump’s fuel tank is normal ； Operate the cooling water system for the fourth pump and install a pressure gauge ； Fifth, open the inlet valve of the pump and open the exhaust valve to release air ； After checking all items from number 6 onward and confirming that everything is correct, start the pump. Run it for about 30 seconds; once it is operating properly, gradually open the pump’s outlet until the process requirements are met. During normal operation, it is necessary to continuously monitor the temperature of the pump’s motor and its bearings, as well as the level of current. It is also important to check the vibration of the pump and ensure that the mechanical seal is in good condition
Before starting the pump, the following preparatory work should be carried out: ① Conduct a thorough inspection of the pump. ② Fill the bearing housing with oil or activate the lubrication system. ③ Turn the crank. ④ Open the inlet valve to vent the system. ⑤ Contact an electrician to test the motor’s insulation and restore power. ⑥ Make sure to fully close the outlet valve before starting the pump. The following points should be noted after starting the pump and during normal operation: ① Check whether the inlet and outlet pressures of the pump are normal. ② Check whether the oil level in the bearing housing or the lubricating oil tank is normal. ③ Monitor whether the bearing temperature and the motor stator temperature are within normal ranges, and during inspections touch the bearing housing with your hand to feel if it is hot. ④ Monitor whether the vibration is normal and check whether the sound is normal. ⑤ Check for leaks in the mechanical seal.
Before starting the pump, the following preparatory work should be carried out: ① Conduct a thorough inspection of the pump. ② Fill the bearing housing with oil or activate the lubrication system. ③ Turn the crank. ④ Open the inlet valve to vent the system. ⑤ Contact an electrician to test the motor’s insulation and restore power. ⑥ Make sure to fully close the outlet valve before starting the pump. The following points should be noted after starting the pump and during normal operation: ① Check whether the inlet and outlet pressures of the pump are normal. ② Check whether the oil level in the bearing housing or the lubricating oil tank is normal. ③ Monitor whether the bearing temperature and the motor stator temperature are within normal ranges, and during inspections touch the bearing housing with your hand to feel if it is hot. ④ Monitor whether the vibration is normal and check whether the sound is normal. ⑤ Check for leaks in the mechanical seal.