【Purification Daily Question】May 26, 2016
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To increase the popularity of the purified area, a \"One Question per Day\" campaign was launched to foster an active atmosphere for technical exchanges while also providing members with financial rewards. (Fellow sailors, if you have any good questions, feel free to send them to me; let’s work together.) 【Daily Question】 How to prepare a low-temperature methanol pump for use? Post your answer as a reply; participating in the quiz earns you +2 wealth points. Getting all answers correct adds another +3 to +8 wealth points. Those who provide thorough analysis and explanations for the questions or answers (or include detailed calculation processes) will receive additional wealth rewards. If your answer is correct and your analysis and explanation are accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions.
Standby pump inlet and cold pump line normally open
The inlet valve is fully open, the outlet valve is opened two notches, and the outlet check valve bypass is slightly open to maintain a surplus.
1. Confirm that all drain and bleed valves are closed. 2. Slowly open the inlet valve to fill the pump; open the exhaust valve to release air and then close it. 3. Open the cold shock valve at the pump’s outlet. 4. Rotate the pump shaft to ensure there is no sticking. 5. Verify that the auxiliary systems are operating properly. 6. Contact the electrical department to supply power, preparing to test the pump.
Normally, the inlet and the cold pump line of the standby pump are kept open.
The pump is turned daily as a routine practice, and the inlet of the standby pump as well as the cold pump line remain open at all times.
1. Confirm that all drain valves are closed. 2. Slowly open the inlet valve to fill the pump; open the exhaust valve to release air and then close it. 3. Open the cold shock valve at the pump outlet. 4. Rotate the pump shaft to ensure there is no jamming. 5. Confirm that the auxiliary systems are operating properly. 6. Contact the electrical department to supply power, preparing to test the pump
#Open the inlet, minimize backflow, exhaust, use the disk pump, introduce purge nitrogen, open the cold pump valve; open the outlet valve as needed#
The inlet valve is fully open, the outlet valve is opened two notches, and the outlet check valve bypass is slightly open to maintain a surplus.
The inlet and outlet valves are fully open, and the valves on the cooling pipeline are also open