The design of the gasification pressure regulating skid and strict production control make this series of vaporizers have sufficient gasification capacity and can operate normally in cold areas. Vaporizers save a lot of electricity or steam. In order to achieve a specific flow, only fins can be added. After many studies and experiments, some technical means are used to solve this problem to the greatest extent possible.
When unloading, in order to prevent the pressure in the LNG storage tank from rising and affecting the unloading speed, when the temperature of the LNG in the tanker is lower than the temperature of the LNG in the storage tank, the upper liquid feeding method is adopted. The low-temperature LNG in the tanker enters the storage tank in a spray state through the nozzle of the liquid inlet pipe on the storage tank, and cools part of the gas into liquid to reduce the pressure in the tank, so that the unloading can be carried out smoothly.
Try not to stop the CNG refueling truck after filling the gas. In the case of liquid natural gas, if the entire bottle group is filled up, a little vaporization will cause the safety valve to exhaust, resulting in a waste of gas. When entering the rest station or resting anywhere, do not refill the gas. If you want to leave the car for a long time, try to keep the gas in the bottle at 1/3. If it is too much, it is easy to cause leakage and waste.
After entering the filling station, you must supervise the filling personnel to clean the filling port, because there will be a lot of dirt adsorbed near the filling port during daily driving. If you add gas without cleaning, it is easy to cause impurities to enter the gas system. This leads to the accumulation of impurities in the engine during the combustion process.
The main process flow of the gasification pressure regulating skid: intake air from the natural gas pipeline network, enter the purification and desulfurization system through the pressure regulating and metering device, and then enter the compressor unit, compress to 25MPa, and then pass through the high pressure dehydration device for treatment. At this time, the compressed natural gas can be directly injected into the vehicle-mounted gas cylinder to refuel the car, or the gas cylinder injected into the CNG trailer can be transported to the sub-station, which is called slow refueling. In addition, the compressed natural gas can also be stored in the gas storage cylinder group. Refilling the car through the sequential control panel is called fast filling.
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