Liquefied gas station, also known as liquefied petroleum gas reserve station, is a qualified unit approved by the state to sell liquefied gas. The hardware required for the construction of liquefied gas station includes fire pool, loop fire water supply pipeline, spray cooling system, municipal fire connection and dialing system, fire pump, standby generator, ABC dry powder fire extinguisher, fire backwater system, fire alarm system and plugging tools.
Software includes: safety management system manual, safety training system, fire management system, accident emergency plan, emergency plan drill plan, drill record, etc. The production process of liquefied gas loading and unloading station is that liquefied gas is unloaded into liquefied gas tank by unloading pump, and the treated liquefied gas is loaded to users by loading pump.
In the loading pipeline, the solenoid valve controls the opening and closing of the pipeline. The main work of the monitoring system includes: set value, detection and control of liquefied gas loading and unloading, automatic metering of liquefied gas loading and unloading, periodic inventory and printing of production reports, automatic system diagnosis and equipment status monitoring.
liquefy
Liquefaction refers to the transformation of a substance from a gaseous state to a liquid state. This process is called liquefaction and is an exothermic process. There are two ways to realize liquefaction, one is to reduce the temperature, and the other is to compress the volume. Usually the volume of liquefied gas will become one thousandth of the original, and the volume of liquefied gas will become one thousandth of the original.
At the same time, a lot of heat is released, and different gases have different liquefaction critical points at different temperatures and pressures, so they must be cooled and absorbed heat while pressurizing. Some gases, such as ammonia and carbon dioxide, have high critical points, which can be changed into liquids when pressurized at room temperature, while others, such as hydrogen and nitrogen, have low critical points, so they must be deeply cooled while pressurized.