Ask for help: Design of horizontal two-phase separator
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Studying* I would like to consult an expert on the calculation of horizontal gravity separator.: First of all, how did you get the estimated diameter and length? If it is a random estimate, it may be very unreasonable. I am confused. How to get the minimum height between LALL to LAL, LAL to NLL, NLL to LAH, LAH to LAHH? I'm so stunned, thank you very much.
LZ can refer to this specification HG20570.8-95 gas-liquid separator design regulations
Thanks for the reply downstairs. Haha, in order to understand, I have seen this specification before. Ask colleagues at work for advice, probably the diameter and height are estimated based on experience, usually I * * The length-to-diameter ratio is 3. The distance between each warning line will have specific numbers in the project regulations when the project starts. Most of the time, if you don’t know the distance between LALL to LAL and LAH to LAHH, you can choose 300mm.
The appropriate aspect ratio has a range and is not necessarily a fixed value. I have the impression that there is a standard for calculating the size of the horizontal tank. I'll check back here.
Can I ask if condensation flash can be calculated using this standard?
Such an old post. Haha, yes, it’s just that the stay time is different, and the calculated results will be different.
I'm not sure if condensate flashing can be calculated using HG/T20570 about steam-water separators. In order to prevent condensate from forming a two-phase flow in the pipeline, the condensate is required to be fed in a liquid phase, but in this specification it is a gas-liquid two-phase feed.
Yes, the default is two-phase feeding. I think it has been depressurized and turned into two phases. Otherwise, how can it be a gravity separator? It must be two phases. The specific size will be calculated based on the difference in residence time. I don't quite understand what you're talking about. What are you trying to do?
I understand that the stay time needs to be calculated, right?
I want to design a flash tank. The higher-pressure condensate enters the lower-pressure flash tank to flash and recover the flash steam. In order to prevent the condensate from vaporizing on the pipeline, the liquid phase feed is required to allow the liquid in the flash tank to be statically pressed.