[Q&A Question 049] 2016.06.08
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【Q&A Question 049】June 8, 2016: Briefly describe the function of a high-level fuel tank. The answer key will be available after responding; scoring is based on answering the key points. By adjusting the oil pressure, or in the event of an unexpected shutdown, potential energy can be utilized to provide lubrication for the hydrogen circulation pump.
The main function of the high-level oil tank is to ensure that the lubrication pump can provide oil pressure to the compressor or pumps in the event of a power outage.
Ensure rotor lubrication and cooling during the unit’s idle operation, to prevent excessive bearing temperatures that could damage the equipment.
The high-level fuel tank serves to prevent a situation where, in the event of a sudden power loss and the shutdown of both the main and auxiliary fuel pumps, lubrication and cooling for the rotor and bearings are still provided during the rotor’s coasting time, which is approximately 8 minutes
The main function of the high-level oil tank is to ensure that the lubrication pump can provide oil pressure to the compressor or pumps in the event of a power outage.
1. In the event of a power outage or damage to the oil pump, it can supply sufficient oil to the bearing shells, ensuring that the centrifuge can stop urgently without the bearing shells suffering from dry friction due to a lack of oil. 2. To prevent problems during production accidents, such as power outages or oil pump failures, the gravitational potential energy resulting from height differences is used to supply lubricating oil to the machinery, thereby enabling lubrication and cooling. 3. Preventing shaft bearing damage: After the low lubricating oil pressure interlock is activated, it supplies lubrication to the equipment bearings during the period when the unit is running at idle speed, thereby protecting the shafts and bearings.
After the lubricating oil pump stops operating suddenly, it provides lubrication to the unit during its coasting phase; when there is no oil pressure in the system, the oil in the high-level oil tank supplies lubrication to the system through gravity
The function of the high-level oil tank is to detect leaks in the mechanical seal, thereby ensuring safety; an increase in liquid level and pressure indicates that there is a leak in the mechanical seal
In the event of a failure or power outage at the fuel station, the high-level oil tank can continue to supply lubricating oil for cooling and lubrication purposes
During power outages, the gravity of the high-level oil tank is used to supply lubricant, preventing a shortage of lubricant at the end of the system
During power outages, ensure a supply of lubricant during the period when the compressor runs idly, to prevent damage to the bearings and other components