Investigation on temperature rise of LNG loading pump to loading arm
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Survey: Dear leaders and experts, have you ever encountered a situation where the LNG temperature in the vacuum storage tanks of an LNG terminal is -159°C; after being transported to the loading arm using submersible pumps, the LNG temperature drops to -151°C (with a pipeline length of 270 meters from the loading pump to the loading arm)? We urgently request those of you who have experience with similar projects to inform us of the distance between the loading pump and the loading arm What is the temperature? (It’s best to have a DCS screen.)
The distance from the loading pump to the filling arm is 270 meters, which is indeed quite far; as a result, there is significant temperature loss. If the temperature at the bottom of the LNG tank is -160.5 degrees, and the pipeline length is 100 meters, then the temperature at the filling arm should remain above -157 degrees. Check whether the vacuum tube fails to maintain insulation and whether the vacuum level is insufficient. ,