(Daily Question) Coal-to-oil and olefins forum, 2018.2.18
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This post was last edited by Northwest Solitary Goose on 2018-2-19 01:00. 3.jpg Participants: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Question: (DMTO) Olefin separation unit: What is the function of the accumulator in the turbine lubricating oil system? The accumulator installed in the lubricating oil system serves to stabilize the lubricating oil pressure. When it is necessary to switch the main oil pump, at the moment the main pump stops operating and the backup pump starts, this accumulator helps maintain a certain level of lubricating oil pressure, thereby preventing the unit from stopping due to the normal switching of the oil pumps. Note: The answer will be released automatically in two days!
① Supply oil to each bearing of the unit in order to lubricate and cool them. ② The supply regulation system and protective devices maintain a stable and sufficient pressure of oil to ensure their proper operation. ③ Supply oil for lubricating various transmission mechanisms. Based on the functions of the turbine oil system, it is generally divided into two parts: the lubricating oil system and the control (protection) oil system.
1. Provide lubricating oil for the unit bearings； 2. Provide lubricating oil for the turning gear ； 3. Provide control pressure oil for the unit.
The turbine lubricating oil system is an important component for the proper operation of a steam turbine, and the quality of the oil directly affects the safe and stable operation of the turbine. If the oil contains particles in excess of the specified limits, it can easily lead to wear of the turbine bearing shells, jamming of the speed control system, and even serious issues such as bearing burnout or failure of the turbine speed control system, resulting in overspeed.
The accumulator installed in the lubricating oil system serves to stabilize the lubricating oil pressure. When it is necessary to switch the main oil pump, at the moment the main pump stops operating and the backup pump starts, this accumulator helps maintain a certain level of lubricating oil pressure, thereby preventing the unit from stopping due to the normal switching of the oil pumps.
An accumulator is installed in the turbine control oil system to maintain a stable control oil pressure and ensure the sensitivity of the hydraulic transmission system.