In the extensive system of liquefied gas filling equipment, the liquefied gas separator plays a crucial role and is hailed as the "safety guardian". There are numerous key reasons behind this.
During the storage and transportation of liquefied gas, there is usually a certain proportion of gaseous components. If these gaseous components directly enter the refueling gun and are added to the vehicle's gas cylinder, on the one hand, it will result in insufficient actual amount of liquefied gas being added, affecting the vehicle's range; on the other hand, excessive gaseous components entering the gas cylinder may cause the pressure inside the cylinder to rise rapidly, exceeding the safe range, thereby triggering serious safety accidents such as explosions.
The liquefied gas separator is equipped with a sophisticated filtration device and a special gas-liquid separation structure. When the liquefied gas containing both gas phase and liquid phase enters the separator, under the influence of various forces such as gravity and centrifugal force, the gas phase and liquid phase will separate. The gas phase will be discharged through a dedicated return gas pipeline, while the pure liquid phase will continue to flow towards the gas filling gun, thus ensuring that the liquefied gas injected into the vehicle's gas cylinder is in a standard liquid state, maintaining the safety and stability of the gas filling process.
It is inevitable that liquefied gas will carry some solid impurities, such as rust and sand particles. If these impurities enter other components of the gas filling equipment, such as valves and flow meters, they will cause serious wear and blockage problems.
Take valves as an example. The entry of impurities may lead to poor valve closure, resulting in liquefied gas leakage. This not only causes waste of resources but also brings great safety hazards. For flow meters, impurities may affect their measurement accuracy, leading to inaccurate gas filling volume and causing disputes with customers. The filter screen in the liquefied gas separator is like a strong defense line, which can effectively intercept these impurities and keep them inside the separator, ensuring that the liquefied gas entering the subsequent equipment is pure and clean, reducing equipment failures, extending the service life of the equipment, and thereby ensuring the safe operation of the gas filling station.
During the operation of the gas filling equipment, various abnormal situations may occur, such as sudden fluctuations in pipeline pressure, etc. At this time, gas backflow may occur. Once gas backflow happens, it will not only affect the normal operation of the gas filling equipment, but also may cause damage to other equipment and even trigger safety accidents.
The check valve built into the liquefied gas separator can quickly close when there is a tendency for gas backflow, preventing the gas from flowing in the reverse direction. This is like installing a "one-way door" for the gas filling equipment, allowing only liquefied gas to flow in the correct direction, thereby ensuring the safe and reliable operation of the entire gas filling system.
In conclusion, the liquefied gas separator effectively guards the safe and stable operation of the gas filling equipment through multiple functions such as efficient gas-liquid separation, impurity filtration, and prevention of gas backflow. It truly deserves the title of the "safety guardian" for the gas filling equipment. In the daily operation and management of the liquefied gas filling station, attaching importance to the maintenance and upkeep of the liquefied gas separator and ensuring it is always in good working condition is an important measure to ensure the safety of the gas filling station.
