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Regularly check the LNG tank to ensure that the tank is kept at positive pressure

LNG tank to ensure that the tank LNG tank to ensure that the tank is kept at positive pressure tank is kept at positive pressure

Purge the LNG tank with oil-free dry nitrogen

Purging LNG tanks with liquid nitrogen

Content

Purge at least 2-3 times until the temperature of the blown gas is ≥-20°C, the dew point is ≤-40°C, and the natural gas concentration is less than 3% (volume concentration) to be qualified, then keep the tank pressure at 0.05MPa and ensure that all valves (except the instrument valve) are closed. Check the tank regularly to ensure that it is kept under positive pressure.

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