【Daily Question No. 306】November 08, 2018
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【Daily Question No. 306】November 8, 2018: Briefly describe the function of the accumulator in the lubrication system One of the functions of the lubricating oil system is to supply control oil to the turbine speed control system. The amount of control oil required is not large, but the oil pressure must remain stable. Two bladder-type accumulators are installed behind the filter; these accumulators contain nitrogen at a certain pressure inside the rubber bladders, with the interior of the casing serving as a space for storing oil. The main purpose of these accumulators is to stabilize the control oil pressure, especially when the main oil pump stops operating and the auxiliary pump starts up, or when switching filters. The oil pressure in the cooler drops instantly; at this point, the rubber bladder inside the accumulator expands immediately due to the pressure of the nitrogen gas, thereby maintaining stable control oil pressure. It will not cause fluctuations in oil pressure. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below
One of the functions of the lubricating oil system is to supply control oil to the turbine speed control system. The amount of control oil required is not large, but the oil pressure must remain stable. Two bladder-type accumulators are installed behind the filter; these accumulators contain nitrogen at a certain pressure inside the rubber bladders, with the interior of the casing serving as a space for storing oil. The main purpose of these accumulators is to stabilize the control oil pressure, especially when the main oil pump stops operating and the auxiliary pump starts up, or when switching filters. The oil pressure in the cooler drops instantly; at this point, the rubber bladder inside the accumulator expands immediately due to the pressure of the nitrogen gas, thereby maintaining stable control oil pressure. It will not cause fluctuations in oil pressure.
(1) The accumulator serves to stabilize the oil pressure in the oil circuit. (2) At the moment when the main oil pump fails and the auxiliary oil pump starts, it also serves as a backup mechanism to prevent a drop in oil pressure that could lead to shutdown via interlock action.
(1) The accumulator serves to stabilize the oil pressure in the oil circuit. (2) At the moment when the main oil pump fails and the auxiliary oil pump starts, it also serves as a backup mechanism to prevent a drop in oil pressure that could lead to shutdown via interlock action.
Equilibrium stability pressure； It provides some compensation during voltage fluctuations
(1) The accumulator serves to stabilize the oil pressure in the oil circuit. (2) At the moment when the main oil pump stops operating and the auxiliary oil pump starts, it also acts as a backup mechanism, preventing a drop in oil pressure that could lead to shutdown through interlocked actions
One of the functions of the lubricating oil system is to supply control oil to the turbine speed control system. The amount of control oil required is not large, but a stable oil pressure is essential. A bulb-type accumulator is installed behind the filter; the rubber bulb is filled with nitrogen at an appropriate pressure (the pressure value is usually 80% of the lower limit of the control oil pressure), and the interior of the shell serves as a space for storing oil. The pressure inside the bulb is lower than that of the oil, keeping it in a compressed state. The main function of the accumulator is to stabilize the control oil pressure. When the main oil pump stops operating and the auxiliary pump starts, or when the filter or cooler is changed, the oil pressure drops. At such times, the rubber bladder expands immediately due to the pressure of the nitrogen gas, thereby maintaining a stable control oil pressure and preventing fluctuations in it. In the event of a pump failure, it supplies enough pressure to the governor via the control oil.
One of the functions of the lubricating oil system is to supply control oil to the turbine speed control system. The amount of control oil required is not large, but the oil pressure must remain stable. Two bladder-type accumulators are installed behind the filter; these accumulators contain nitrogen at a certain pressure inside the rubber bladders, with the interior of the casing serving as a space for storing oil. The main purpose of these accumulators is to stabilize the control oil pressure, especially when the main oil pump stops operating and the auxiliary pump starts up, or when switching filters. The oil pressure in the cooler drops instantly; at this point, the rubber bladder inside the accumulator expands immediately due to the pressure of the nitrogen gas, thereby maintaining stable control oil pressure. It will not cause fluctuations in oil pressure
One of the functions of the lubricating oil system is to supply control oil to the turbine speed control system. The amount of control oil required is not large, but the oil pressure must remain stable. Two bladder-type accumulators are installed behind the filter; these accumulators contain nitrogen at a certain pressure inside the rubber bladders, with the interior of the casing serving as a space for storing oil. The main purpose of these accumulators is to stabilize the control oil pressure, especially when the main oil pump stops operating and the auxiliary pump starts up, or when switching filters. The oil pressure in the cooler drops instantly; at this point, the rubber bladder inside the accumulator expands immediately due to the pressure of the nitrogen gas, thereby maintaining stable control oil pressure. It will not cause fluctuations in oil pressure.
One of the functions of the lubricating oil system is to supply control oil to the turbine speed control system. The amount of control oil required is not large, but the oil pressure must remain stable. Two bladder-type accumulators are installed behind the filter; these accumulators contain nitrogen at a certain pressure inside the rubber bladders, with the interior of the casing serving as a space for storing oil. The main purpose of these accumulators is to stabilize the control oil pressure, especially when the main oil pump stops operating and the auxiliary pump starts up, or when switching filters. The oil pressure in the cooler drops instantly; at this point, the rubber bladder inside the accumulator expands immediately due to the pressure of the nitrogen gas, thereby maintaining stable control oil pressure. It will not cause fluctuations in oil pressure
(1) The accumulator serves to stabilize the oil pressure in the oil circuit. (2) At the moment when the main oil pump fails and the auxiliary oil pump starts, it also serves as a backup mechanism to prevent a drop in oil pressure that could lead to shutdown via interlock action.