News Detail

What is 3DFF?

3DFF double-deck oil tank is a kind of double-deck oil tank produced by AOKE ZHONGYI with proprietary technology. It is the proprietary name of FF type double-deck oil tanks produced with proprietary technology, and it is also the name of the 3D composite material used by Oket for its 3D double-deck oil tanks. It is also the registered trademark of the tanks produced by Oket with 3D composite material technology. It has not only won the national key new product certificate jointly issued by four national ministries and commissions, but also owns 13 product patents and UL certification, and has also become synonymous with high-quality FF double-deck oil tanks.

Alpine Area

PetroChina Hegang Nanshan gas station is located in the northeast end of China's Heilongjiang Province - Hegang, belongs to the cold zone, every year in the middle of October in the Northeast entered the winter cold period, so the general construction and renovation of the type of work basically have to rush to complete before freezing. The station's anti-seepage renovation work is heavy and the cycle is tight, and it is the first petrol filling station in Hegang, which has a greater demand for the space of the station. 

The construction and installation of Ausco ZTE 3DFF double-deck tanks is convenient and quick, and the installation under the driveway can be done without building a concrete pressure chamber, but directly buried with ordinary gravel, which can greatly shorten the construction cycle while ensuring the maximum use of space. What makes the oil company feel more satisfied is that the total cost is more economical compared to other ways of seepage control and renovation.

AOKE ZOYI 3DFF double-deck oil tank technology from Canada ZCL company, many regions in Canada are lower than the northeast, and 3DFF double-deck oil tank in Canada market share of nearly 90%, so in the cold environment 3DFF double-deck oil tanks are completely unaffected by the situation will not be frozen and cracked. For the issue of water injection, taking into account that if water is not injected, later into the oil, the tank may have settlement and may even be torn pipes, road subsidence and other risks exist. At the same time, the water table is too high if the rainfall, there may be floating tanks at risk, so the construction process is required to inject water. After water injection, the risk of sinking or floating tanks can be effectively prevented through natural settlement. Considering the weather, the water can be pumped out after 48 hours after water injection and settlement. The leak detection and monitoring fluid of 3DFF double-layer tank is brine, which is configured with the cold weather in mind, not only will it not freeze, but also will not precipitate because of the low temperature, so it has a strong adaptability in the low-temperature environment.

High Altitude

Lhasa, known as one of the highest cities in the world, reaches an altitude of 3,650 meters. Here the solar radiation is strong, the temperature difference between day and night is big, the air is thin and prone to plateau hypoxia reaction, due to the cold climate of the plateau, therefore, the annual time for earth moving construction work is relatively short. In addition to being located in a high-altitude area, the Lhasa Central Petrol Filling Station is surrounded by a number of units with large drainage capacity. Due to the terrain, a large amount of drainage water from these units flows into the tank area of the Lhasa Central Petrol Filling Station along the terrain, and groundwater appears at a depth of more than one meter from the ground, with the groundwater level being very high;

Lhasa central station is only a representative of high water level oil stations in plateau area, there are numerous stations with such geographical environment in Lhasa and even in Tibet, therefore, PetroChina Tibet Sales Company has also been seeking for an anti-seepage renovation product with superb adaptability to the environment, outstanding advantages in resistance to floatation and corrosion, and simple and fast construction.

Ausco Sino-Italian? Adopting the standardized point-to-point service mode, the tanker trucks were tracked by specialists from the moment they left the factory, and although Lhasa was snowed in for 5 days, the tanks were still delivered safely to the station as scheduled. During the construction process, Oket Zhongyi? The service engineers stationed at the station provided full guidance and designed targeted construction plans for the special conditions of Lhasa Central Station, such as high altitude, high water level and under the driveway.

Oket China-Italy? After the service engineers surveyed the construction site, firstly, multiple pumps were used to pump it out for ground investigation. The geological survey was carried out to test the geological compliance with the installation requirements of oil tanks larger than 120 kPa. After geological testing, the soil bearing capacity fully meets the requirements, the station does not need to make a concrete sub-slab, the use of ground anchors and ordinary gravel for the foundation bed can be, which can ensure the safety under the premise of saving investment and construction period. 

The installation method of ground anchor anti-floating system and ordinary gravel backfill is very safe during the construction process, and there will be no floating, drifting or tilting of tanks.

Revolutionary realization of direct burial under the driveway. There is no need for the traditional pressurized tank pool constructed under the driveway, which effectively shortens the construction period and saves costs.

Island area

Hainan Island, an island lying on the South China Sea, abundant rainfall, many rivers, high water table, air humidity with salt spray, many areas are generally loose soil, low resistivity, high salt content. Therefore, for the oil station tank construction, on the one hand, the corrosiveness of the buried environment is very strong, and the bottom of the tank is easy to form galvanic corrosion; on the other hand, for the tank anti-floating system also has a great test.

PetroChina Hainan Sales Company's Haikou Jieli gas station is a typical representative of the seepage-proof transformation of the island environment.

3DFF double-layer tanks on the island environment adaptability

In the special background of the island environment, AOKE Zhongyi 3DFF double-layer tank provides the most suitable and cost-effective solution for the seepage control of Haikou Jieli Petrol Filling Station.

It is mainly embodied in:

Anti-corrosion

The tank is made of high-quality FRP material, which does not need expensive cathodic protection, and can completely solve the problem of anti-corrosion of oil storage, resist the corrosion of the tank by high salt and wet geological environment, and ensure that it will never rust and corrode.

Anti-floating aspect

The anti-floating system of AOKE ZHONGYI 3DFF?double-layer oil tanks, consisting of anti-floating bund and 3mm-12mm ordinary gravel backfilled at a later stage, can completely solve the problems of high underground water level and heavy rainfall in the area.

Countermeasures for loose soil

In order to avoid the collapse of the tank pool during the construction process, we strictly follow the tank pool dimensions to play sheet piles to support the excavation after the tank pool floor is ready for the installation of tanks and backfill, backfill after the end of the sheet piles will be removed to continue to carry out the later pipeline installation and other work.

Response to pressure under the driveway

With AOKE Zhongyi 3DFF double-layer tanks, there is no need to build a pressure chamber for the installation under the driveway, but only need to make a base plate at the bottom of the tank pool to ensure the foundation bearing capacity required for the installation of the tanks.

Construction Cycle

Haikou Jieli Filling Station took only 8 days from excavation to backfilling, which greatly shortened the construction period and reduced the overall cost.

On-site Service Guarantee

During the whole process from excavation to backfilling, Oket has arranged professional service engineers to carry out the work. arranged professional service engineers to provide on-site guidance, which improved the safety factor of tank installation and the smoothness of construction.

Earthquake area

PetroChina Jiuzhaigou Goukou Gas Station is located in the southeast of Yazha Village Primary School on the Yuezha Village section of Provincial Highway 301 in Jiuzhaigou County, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province, and the seepage prevention reconstruction of the station was completed in November 2016, using the AOKO C.I.A. 3DFF?double-layer tanks.At 21:19:46 on 8 August 2017, a magnitude 7.0 earthquake struck Jiuzhaigou County, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province, at latitude 33.20 degrees north and longitude 103.82 degrees east. , 103.82 degrees East) was struck by a magnitude 7.0 earthquake at a depth of 20 kilometers. The tremor was felt in Sichuan, Chongqing, Gansu, Shaanxi and other provinces and cities. The Jiuzhaigou Goukou petrol station is only 10.8 kilometers away from Bimang Village, the epicenter of the earthquake, in a straight line. After the earthquake, Oket ? After the earthquake, Oket 3DFF double-deck tanks buried in the tank area of Jiuzhaigou Goukou Petrol Filling Station were not damaged or deformed in any way.

Jiuzhaigou Goukou petrol station tank area seepage control modification construction method

Jiuzhaigou Goukou petrol station used Oket 3DFF double-layer tanks. The recommended method of direct burial of the tank area under the driveway.

This method uses 3-12mm ordinary gravel as the backfill material for the tank area, combined with the ground anchors and strap installation fittings provided by the tank manufacturer, so that the tanks, ground anchors, straps, and the backfilled ordinary gravel form a set of anti-floating and pressure-bearing buried safety system. The foundation of this system can effectively operate, on the one hand, relying on the Oket Zhongyi 3DFF double-layer tanks that only use the top international raw materials, combined with advanced technology process, to ensure the basic quality of the tanks. On the other hand, the use of 3D glass fiber fabrics and the design of external reinforcement bars molded into the outer wall of the tank make the Oket 3DFF double-deck tanks strong and fully compatible with ground anchors and ordinary gravel backfill systems. This system allows external forces from all directions around the tank to be effectively dismantled and dispersed, thus protecting the safety of the tank and the tank area as a whole.

Customer Value

Evaluation of 3DFF double-deck oil tanks by oil companies and construction teams

AOKE ZOYI 3DFF double-deck oil tanks are light in weight, very easy to assemble modularly for construction, quick to construct under the driveway, the manufacturer has sufficient stock for quick delivery, and the manufacturer sends personnel to guide the installation after arrival, and the whole process of tracking is serious and responsible. The inner and outer layers of the tank are FRP, corrosion-resistant inside and outside, with a service life of up to 50 years. Tanks can be used in alpine areas, high altitude areas, high water level areas, and have a strong environmental adaptability, to grab the schedule also plays an important role. The leakage detection method of brine filling the middle layer will not be affected by the cold weather. Considering the cost of civil construction and construction period, the use of 3DFF?double-layer tanks under the driveway, the overall investment compared to other types of impermeable renovation and a little lower, very cost-effective.