Natural gas filling station

Natural gas filling station

After the natural gas is purified (removing CO2, sulfide, heavy hydrocarbons, water and other impurities), it is deep-cooled to -162 °C under normal pressure, and changes from gaseous to liquid, called liquefied natural gas. The volume of liquefied natural gas is about the same. The mass of natural gas is 1/620 of the volume, and the weight is about 45% of the same volume of water.

The LNG filling station is a filling station for supplying LNG to LNG. It is divided into four types and is generally divided into four types.

1. Skid-mounted gas station

2, standard gas station

3. L-CNG filling station

4. Mobile armored filling station

Refueling: The LNG liquid is pressurized to 20~25Mpa by the LNG low-temperature high-pressure plug pump, and the high-pressure liquid enters the high-pressure air-temperature vaporizer to be vaporized into compressed natural gas (CNG). The CNG is filled into the CNG automobile cylinder through the CNG dispenser.

Adding liquid: LNG in the storage tank is filled into the automobile cylinder by the LNG low temperature submersible pump through the filling machine

Pressurization: the LNG in the storage tank is injected into the storage tank by vaporization and pressure adjustment, and the pressure in the storage tank is adjusted to reach the set value.

Temperature adjustment: part of the LNG in the storage tank is pumped out by the LNG low temperature submersible pump, injected into the storage tank through the LNG booster, and the temperature of the storage tank is adjusted to the set value.

The system process includes: unloading system, LNG storage system, booster system, submerged filling system, gas filling system, vehicle LNG insulated gas cylinder, automatic control system, alarm system and so on.

The company can provide users with turnkey projects such as system design, complete selection, control system, engineering installation, commissioning training and after-sales service for LNG vehicle filling stations.