The process flow of LNG storage and peak shaving station is that after being transported to the station by tank car, the differential pressure between the tank car pressure and the storage tank is greater than 0.2MPa through the pressurization of unloading supercharger, and the LNG in the tank car enters the storage tank through the differential pressure; When peak shaving and gas supply are required, LNG from the storage tank enters the cryogenic pump through the liquid discharge pipeline for pressurization to the process pressure, and the pressurized LNG successively enters the LNG vaporizer for gasification and the reheater for reheating to normal temperature. It is then sent to the city official website after being stabilized by the pressure regulating metering skid. In addition, LNG liquid can also be exported through loading pump and loading skid.
The BOG gas that generates dust during loading and unloading shall first enter the ash machine in the meteorological space of the storage tank, and then be reheated through the BOG vaporizer, pressurized to the process pressure by the compressor, and sent to the main pipe network to avoid waste. After being collected, the EAG in the station will be reheated to normal temperature and then enter the diffuser for centralized release.
Yingkou PCL control cabinet