[Q&A Question 251] 2018.09.14
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【Q&A Question 251】September 14, 2018: Briefly explain the principle behind adjusting the exhaust volume of a compressor using clearance adjustment The principle behind adjusting the exhaust volume of a compressor through clearance adjustment is to change the clearance volume, thereby altering the effective suction volume; as a result, the suction volume changes as well, and this ultimately leads to a change in the exhaust volume. (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
After the clearance is changed, when the gas compression pressure reaches the level at which it pushes open the gas valve, the pressure in the clearance space changes, and the mass of the gas filled there also varies. When the clearance is very large, all of the gas compressed by the piston is used to increase the pressure in the clearance space, resulting in little gas being discharged. Conversely, if the clearance is zero, all of the gas compressed by the piston is discharged.
By changing the effective clearance volume in the compressor cylinder, it is possible to adjust the amount of gas drawn into the compression chamber. Before fresh gas enters the compression chamber through the intake valve, the gas remaining in the clearance expands to the inlet pressure. When the clearance volume is large enough, the minimum exhaust volume of the compressor’s compression chamber can be reduced to zero.
Clearance adjustment is achieved by modifying the size of the clearance, thereby controlling the amount of compressed gas discharged. During expansion and intake processes, different clearances result in varying pressures within the cylinder, which in turn leads to differences in the amount of air intake, thus enabling regulation of the air volume.
The principle behind adjusting the exhaust volume of a compressor through clearance adjustment is to change the clearance volume, thereby altering the effective suction volume; as a result, the suction volume changes as well, and this ultimately leads to a change in the exhaust volume.
After the clearance is changed, when the gas compression pressure reaches the level at which it pushes open the gas valve, the pressure in the clearance space changes, and the mass of the gas filled there also varies. When the clearance is very large, all of the gas compressed by the piston is used to increase the pressure in the clearance space, resulting in little gas being discharged. Conversely, if the clearance is zero, all of the gas compressed by the piston is discharged.
After the clearance is changed, when the gas compression pressure reaches the level at which it pushes open the gas valve, the pressure in the clearance space changes, and the mass of the gas filled there also varies. When the clearance is very large, all of the gas compressed by the piston is used to increase the pressure in the clearance space, resulting in little gas being discharged. Conversely, if the clearance is zero, all of the gas compressed by the piston is discharged.
The principle behind adjusting the exhaust volume of a compressor through clearance adjustment is to change the clearance volume, thereby altering the effective suction volume, and the suction volume changes as a result
Due to the requirements related to the compressor’s structure, manufacturing, assembly, and operation, certain spaces or gaps are left in parts of the cylinder; this space or gap is referred to as the clearance volume. (Also known as harmful denotation or air retention.)
The principle behind adjusting the exhaust volume of a compressor through clearance adjustment is to change the clearance volume, thereby altering the effective suction volume; as a result, the suction volume changes as well, and this ultimately leads to a change in the exhaust volume.
After the clearance is changed, when the gas compression pressure reaches the level at which it pushes open the gas valve, the pressure in the clearance space changes, and the mass of the gas filled there also varies. When the clearance is very large, all of the gas compressed by the piston is used to increase the pressure in the clearance space, resulting in little gas being discharged. Conversely, if the clearance is zero, all of the gas compressed by the piston is discharged.