Wuhan's winter gas supply guarantee has added another boost. On the 2nd, the Yangtze River ** reporter learned from the City Gas Group that after 13 days and nights of unremitting efforts, the vacuum maintenance of the storage tank of the LNG gasification station of the City Gas Group was successfully completed, and the successful implementation of this important project increased the emergency support capacity for the upcoming winter gas peak.
Vacuum maintenance site of storage tank of LNG gasification station of city gas group.
LNG storage tank is a tank used to store liquid natural gas, which can be gasified in time to supplement the natural gas source for the urban pipeline network during the peak period of urban winter gas consumption, which has an important role in peak shaving, storage and distribution, and stabilizing the pressure of the urban pipeline network, which is of great significance for ensuring the stability of natural gas and the normal operation of the system.
According to the relevant personnel of the city gas group, the thermal insulation performance of the LNG storage tank is very important, and its vacuum degree directly determines the cold insulation effect of the storage tank. Once the vacuum fails, it will lead to a large amount of LNG evaporation and gasification, and the pressure in the storage tank will rise sharply, which is very easy to cause safety accidents. In order to ensure the stability and reliability of the city's winter gas consumption**, the city gas group will carry out vacuum inspection and maintenance of LNG storage tanks every year.
Vacuum maintenance must be carried out continuously, once stopped in the middle, if there is a leak at the connection between the vacuum pump and the storage tank, it is very easy to cause the vacuum failure of the storage tank. Lv Leheng of the high-pressure transmission and distribution operation center of the city gas group is the guardian of the LNG management department, he told reporters that once during the construction at night, he suddenly encountered a rainstorm, and he shut down the vacuum pump in time on the spot, cut off the power supply of the circulating water pump and vacuum pump, and checked whether the windproof rope and metal connecting pipe were firm at close range. "All the insignificant details can lead to serious consequences, and all on-site personnel need to be on high alert throughout the process. ”
As the temperature continues to drop, our city is about to usher in the peak period of gas consumption. The city gas group will increase pipeline inspections, increase the frequency of maintenance of high-pressure facilities, and ensure the safety and stability of gas supply in winter.
The City Gas Group reminds the public that they should pay more attention to safety in daily gas consumption, do not close doors and windows for a long time, and pay special attention to the ventilation of the kitchen windowsThe bathing time should not be too long, and it is necessary to prevent poisoning caused by exhaust gas backflow on windy days. In case of gas problems, you can call Wuhan Natural Gas 24-hour service unified **96511 at any time for consultation. (*Yangtze River**).