How should the design temperature of the torch main pipe be determined?
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I would like to ask the experienced users in process engineering: The vent main has many branch pipes, and the design temperatures of these branch pipes vary. How is the design temperature for the main pipe determined? 2: How is the design temperature of the other branches of the vent main determined? ((Some people say that the design temperature for the main pipe is the highest design temperature among the branch pipes. So, how is the design temperature for the other branch pipes determined? ））
The main torch pipe is generally designed for 350°C; higher temperatures require a different material
I don’t know anything about torches; I’ve never done it before, I’m here to learn.* :)
What’s the highest temperature you’ve seen with such anger!!
It seems that not many people are familiar with this issue
Probably everyone is quite busy. I’ll give you a hand here: @ylb913 @恶贯满盈 @智者明 @jacques0920 @MC0323 @小洁 @Dreamseeker
1: The main vent pipe has many branch pipes, and the design temperatures of these branch pipes vary. How is the design temperature of the main pipe determined? The design temperature depends on the medium involved, as well as the temperature after discharge; in cases of large pressure differences, low temperatures may occur. One can’t just focus on high temperatures. Referring to the unknown conditions of various branch pipes in the main pipe: How is the design temperature of the other branch pipes connected to the drain main pipe determined? The design temperature takes into account the location and conditions of each branch pipe; for example, the discharge temperature in areas near the flare is 300 degrees, while it is only 200 degrees in more distant areas. Therefore, there is no need to set the design temperature at 300 degrees in those distant areas. This depends on factors such as the discharge conditions and the flow direction of the medium – just my personal opinion
The temperature of the branch pipe should be related to the temperature at the discharge point, such as the outlet of the safety valve.
The maximum temperature of the medium entering the flare header should be considered, and a margin can be added to this temperature. As for the design temperature of the branch pipes, it may be higher or lower than that of the main pipe; in such cases, it is necessary to ensure that the material of the branch pipes is the same as that of the main pipe, so as to meet the requirement of having the same design temperature as the main pipe over a short period of time.
This post was last edited by su*ubin on 2015-11-12 at 15:29. The flare pipeline must take into account the conditions during a fire; designing it for 350 pressure represents a conservative and safe approach. The discharge conditions of the safety valve include those in case of a fire