One question per day: Coal-to-oil and olefins forum, December 30, 2017
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3.jpg Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Question: Why is it necessary to strictly control the liquid level of the refrigerant in all the users within the propylene system in an (DMTO) olefin separation unit? The liquid level of the refrigerant used by these users must not be too high, nor too low! Too low; the heat transfer area is insufficient ； It is too high; there is no space for vaporization in the gas phase, and the liquid can easily reach the compressor inlet, leading to accidents! Note: The answer will be released automatically in two days!
If the liquid level of the refrigerant is too high, flooding will occur. If the liquid level of the refrigerant is too low, the exhaust temperature will rise.
If the liquid level of the refrigerant is too high, flooding will occur. If the liquid level of the refrigerant is too low, the exhaust temperature will rise.
The liquid level of the refrigerant in the user unit should not be too high nor too low; if it is too high, there is no space for vaporization； Too low: the heat transfer area is insufficient, and liquid can easily reach the compressor inlet, leading to accidents
If the liquid level of the refrigerant is too high, flooding will occur. If the liquid level of the refrigerant is too low, the exhaust temperature will rise
If the liquid level of the refrigerant is too high, flooding will occur. If the liquid level of the refrigerant is too low, the exhaust temperature will rise.
The liquid level of the refrigerant in the user unit must not be too high, nor too low! Too low; the heat transfer area is insufficient ； It is too high; there is no space for vaporization in the gas phase, and the liquid can easily reach the compressor inlet, leading to accidents
The liquid level of the refrigerant in the user unit should not be too high nor too low; if it is too high, there is no space for vaporization； Too low: the heat transfer area is insufficient, and liquid can easily reach the compressor inlet, leading to accidents
The liquid level must not be too high or too low. If it is too high, there isn’t enough surface area for the refrigerant to evaporate, and this can also cause an increase in the liquid level in the compressor’s suction tank, leading to an unplanned shutdown. If the liquid level is too low, the heat exchange area becomes too small, failing to achieve the desired cooling effect.
The liquid level of the refrigerant in the user unit must not be too high, nor too low! Too low; the heat transfer area is insufficient ； It is too high; there is no space for vaporization in the gas phase, and the liquid can easily reach the compressor inlet, leading to accidents.