The basis for filling the pipelines with water after shutting down the liquefied gas tank area is
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The basis for filling the pipelines with water after shutting down the liquefied gas tank area is
During shutdown, water is first used to push the liquefied gas in the pipelines into the storage tanks, in order to minimize the amount of gas that needs to be vented. After shutting down, fill the pipelines with water to prevent liquefied gas from accumulating in them, and at the same time lower the temperature to ensure safety when working on other pipelines.
For air replacement, the oxygen content inside the tank is adjusted to a safe range. The cost of water is relatively low, but it can easily lead to water accumulation, and discharging wastewater poses a serious threat to the environment. Generally, nitrogen is used in large tank farms