Whether it is "three barrels of oil" or private gas stations, more and more double-deck tanks are used, the main reason is that it has the functions of safety, environmental protection and automatic alarm. Double-layer oil tanks on the market mainly refer to SS oil storage tank, SF oil storage tank and FF oil storage tank.
①. The SS oil storage tank is a steel double-layer structure oil storage container. The inner and outer layers are made of steel materials, with a gap in the middle;
Features: Thick structure wall, the highest external pressure strength, but the outer layer is susceptible to corrosion and short service life.
②. The full name of the SF oil storage tank is a steel reinforced glass fiber double-layer oil storage container, which is a double-layered glass fiber reinforced plastic (that is, glass fiber reinforced plastic) impervious jacket on the single-layer steel oil tank. Layer structure oil tank. There is a through gap between the steel inner tank and the FRP outer tank;
Characteristics: The service life of the economic double-layer oil tank is 5-10 times that of the ordinary single-layer steel oil tank, and the service life is 30 years, which greatly saves the maintenance investment cost.
③.FF full name is glass fiber reinforced plastic double-layer oil tank. The inner and outer layers are made of glass fiber reinforced plastic, with a gap space in the middle. It is also equipped with a leak detection device, which can monitor the gap space for 24 hours. . Once the inner tank or the outer tank leaks, the sensor of the leak detection device can send an alarm when it detects the liquid level at the bottom of the gap space to ensure the safe use of the oil tank.
Features: Never rust, long maintenance cycle, basic conditions for liquid medium leak detection, 50 years of service life, cost performance and full life cost advantages.
特性 Double oil tank safety features
If the inner tank of the double-layer oil tank leaks, the gas or detection liquid with a certain pressure in the double-layer gap will enter the inner tank of normal pressure; the pressure or liquid level in the double-layer gap will change, triggering the sound and light alarm . After the stored liquid leaks into the double-layer gap, the stored liquid will not leak out because the outer tank is intact. Therefore, the storage fluid, soil and groundwater are safe.
If the outer tank leaks, the gas or detection liquid with a certain pressure in the double-layer gap will enter the soil. In the same way, the pressure or liquid level in the double-layer gap will change, triggering the sound and light alarm. At this time, because the inner tank is intact, the stored liquid is safe; only the gas or detection liquid enters the soil, so the soil and groundwater are also safe.
Because the storage fluid in contact with the inner tank and the soil and groundwater in contact with the outer tank belong to different media and have different corrosion rates on the tank material, the probability of leakage at the same time is almost zero. Therefore, leakage of the stored liquid out of the tank can be prevented, and production safety and environmental protection can be achieved.
