What is the temperature control for low-temperature, atmospheric-pressure storage tanks during liquid nitrogen pre-cooling? At what temperature should pre-cooling be stopped using liquid nitrogen?
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What is the temperature control for low-temperature, atmospheric-pressure storage tanks during liquid nitrogen pre-cooling? At what temperature should pre-cooling be stopped using liquid nitrogen?
Generally, the cooling rate during pre-cooling should not exceed 5°C per hour; ideally, it should be 3–4 degrees. There is no specific requirement regarding the temperature at which cooling should stop, but generally, nitrogen is used for pre-cooling first, followed by replacement with liquefied gas for further pre-cooling.
If the temperature is too low, it will have an impact on the storage tank, right? Is it pre-cooling while remaining in a gaseous state?
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