Shandong Zhongjie sells a large number of propane storage tanks for various LPG tank filling station projects

Description :

　　The emergency shut-off valve istankA very important safety accessory in storage and supply systems, widely used in pressure vessel and pressure pipeline systems. The working principle of an emergency shut-off valve refers to the rapid closure or opening of the valve in the event of an emergency, in order to prevent accidents from occurring. The actuator of the emergency shut-off valve can be selected from three power sources: electric, pneumatic, and hydraulic.

　　In practical application, pneumatic valves are generally used in storage tank areas, which are characterized by rapid execution and no explosion-proof requirements. The disadvantage is that the gas source needs to be continuous and stable. When using an air compressor for gas supply, 24-hour operation must be ensured, and the operating cost is relatively high; Usually, nitrogen cylinder group is used as the gas source, which is characterized by relatively low cost, high gas pressure, and rapid pneumatic action. The disadvantage is that high-pressure gas cylinders in the storage tank area are also a hazardous source and need to be combined with safety assessment.

　　There are relatively few electric emergency shut-off valves used in storage tank areas, and they are more commonly used in petrochemical projects. The advantage is that the usage cost is relatively low, as long as stable and continuous power supply is ensured. The disadvantage is that the procurement cost of electric valves is high, especially for imported valves, which are expensive. The use of mains power supply requires the installation of emergency or uninterruptible power supply, which has high requirements for explosion prevention.

　　There are relatively few hydraulic emergency shut-off valves used in storage tank areas. Although they have good stability and low investment costs, they do not require other auxiliary equipment and have no other requirements for explosion prevention. However, in practice, hydraulic valves have a large stroke, do not move quickly enough, and the sealing effect cannot be guaranteed. Therefore, they are not suitable for emergency shut-off of flammable and explosive gases.

　　As a flammable and explosive gas, it is very important to adopt economically safe and reliable safety accessories in the design process of storage tank areas. The design institute will consider the actual situation of the tank area and select them comprehensively.

AfterSalesService :

• LPG tank filling station project