What is an oil tank with geomembrane
An oil storage tank, also known as an oil tank or a storage tank, is a large container with a relatively regular shape that is used to store petroleum products.
And according to different construction materials, it can be divided into metallic oil tanks and non-metallic oil tanks. Most of the metal oil tanks are steel oil tanks that are usually used in oil storages; Non-metallic oil tanks, which are also known as petroleum tanks,
The construction of an oil tank with geomembranes should be done according to the detailed design of the metal frame and the work execution plan. The operation plan is the most basic technical document in the process of installing an oil tank with geomembranes. View all results for the question What is a refinery tank?
Storage tanks are often used to store raw materials and byproducts from crude oil processing, allowing refineries to operate undisturbed.
It can also be connected to a circuit network and send the fluid content as a signal to the network. View all results for the question What can steel containers store? Our ladle tanks are ideal for storing other hydrocarbons such as animal fats, selected oils, detergents, diesel, palm oil, kerosene and tallow.
A geomembrane oil tank is a sealed steel container for storing liquid or gas. Storage tank engineering is widely used in petroleum, chemical, grain and oil, food, fire protection, transportation, metallurgy, medicine and other industries. The requirements are also very strict.
The foundation soil layer must meet the requirements of the design value of the bearing capacity, and anti-leakage and anti-moisture operations must be carried out, otherwise the leakage will cause serious environmental pollution; Underground water vapor also corrodes the steel tank and affects the actual performance.
The advantages of building an oil tank with geomembrane
In terms of environmental protection and anti-leakage in the petrochemical and mineral industries, geomembranes, hdpe anti-leakage membranes, composite geomembranes and anti-leakage geomembranes have gradually replaced traditional concrete, plastic and metal containers.
Traditional concrete, plastic and metal containers have high cost, short life and weak anti-leakage effect, are resistant to acid and alkali, salt, heavy oil, and have good molecular stability, and are a good product for anti-leakage and anti-moisture in chemical fields. and mining industries, especially in the places of accumulation and storage.
Arian Khak Iranian brand geomembrane, hdpe anti-leakage membrane, composite geomembrane and anti-leakage geomembrane are widely used in storage tanks, sewage tanks, dissolution tanks, sedimentation tanks, storage areas and storage tanks in mining areas. . The Department of Conservation is aggressively promoting the new anti-spill process improvement process.
The quality of HDPE geomembranes for the construction of oil tanks with geomembranes
Appearance, after the HDPE geomembrane arrives at the construction site, check whether the outer packaging is damaged. If there are holes or severe scratches, throw it away.
If it is not serious, use a welding machine to weld. Minimize the weld area in the future. The surface of anti-leakage geomembranes is smooth. When overlapping, try to use geomembranes with the same thickness, the thickness is equal to or greater than the quality of the product, without bulges, cracks and uneven thickness.
Performance index test, HDPE geomembrane data can only be obtained through testing tools. After a large amount of goods arrive at the construction site, the employees randomly sample the goods and send them to the test room or inspection department. If the sample cannot be received, the physical and chemical indicators of the sample should be checked and tested again.
After passing the test and inspection, construction can begin.
Because it is difficult for people to judge whether the HDPE geomembrane is qualified in terms of appearance, the inspection room is very important. Conventional landfills are designed with urban construction geomembranes. In terms of appearance, the brightness of urban construction geomembranes is not as bright as standard geomembranes.
Since the production process of urban construction geomembranes is in the form of blowing film and blow molding, usually the surface of these geomembranes is not light but dark; HDPE geomembranes produced in the calendering process have a light color, commonly referred to as “mirror”, but no indicators. The height of urban geomembranes With the development of society and the upgrading of the level, the application of HDPE geomembranes is increasing more and more.
What are the characteristics of HDPE geomembranes for oil tank construction
First of all, HDPE geomembrane has good plasticity during construction and use, even if there is a certain tension, it can still guarantee the comfort and integrity of use, and it does not cause damage to HDPE geomembrane due to environmental changes throughout the year. .
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Second, it has good anti-wrinkle properties, even if it is exposed to the environment, it will not wrinkle for a long time, so it is a product with good effect.
Thirdly, it has good resistance to heat and cold, no matter in what environment HDPE geomembrane can be used well, but people should understand the scope of its use when buying. Finally, it should be pointed out that HDPE geomembrane from It has good chemical stability, so it can be used well in all types of corrosion, acidic and alkaline environments.
Steps of construction of oil tank with geomembrane
(1) Anti-leakage geomembrane is a more important process in the whole anti-leakage system in the construction of an oil tank with geomembrane. Check the appearance quality of anti-leakage geomembranes before laying the film, damages
Record and repair mechanically found and manufacturing wounds, holes, fractures and other defects.
(2) Before cutting the anti-seepage geomembrane, measure its relevant dimensions and then cut it according to the actual situation. When laying the membrane, the width of the connection lap between the membrane and the membrane should not be less than 100 mm. , so that the arrangement direction of the joint is parallel to the slope and the end line is arranged along the direction of the slope.
(3) When laying anti-leakage geomembranes, less welding should be sought and raw materials should be saved as much as possible, assuming quality. Also easy quality. Usually, in the part where the corner is deformed, the length of the seam should be as short as possible. Except in special cases, on slopes with a slope greater than 1:6, at a distance of 1.5 m from the top slope or stress concentration zone, try not to create welds.
(4) When laying anti-leakage geomembrane in the oil tank, artificial folds should be avoided, and if the temperature is low, it should be as stiff and smooth as possible.
(5) After laying the anti-leak geomembrane, walking on the surface of the membrane, moving tools, etc. should be minimized. Any objects that could damage the leak-proof geomembrane should not be placed on or carried over the membrane. Create a membrane to walk on, so that accidental damage to the membrane is avoided.
(6) The anti-leakage geomembrane is a flexible material that can be formed according to any tank ring beam structure and tank area. All corners and right-angled areas should be rounded or chamfered to prevent damage to the leak-proof geomembrane during backfilling with sand.
Requirements for the construction of an oil tank with geomembrane to prevent leakage:
(1) There is no standard for oil tank leakage proof geomembrane requirements, which are mainly based on the manufacturer’s leakage proof instructions. The first is to make sure that the anti-leakage geomembrane of the oil tank has a good appearance and no damage; Then open it slowly and place it in the designated position.
(2) After the oil tank anti-leakage geomembrane is placed, when adjusting the position, care should be taken to protect the installed anti-leakage membrane, and the width of the overlap seam should meet the specification requirements.
HDPE
Welding of oil tank with geomembrane:
(1) HDPE anti-leakage geomembrane is welded using wedge welding machine and two-way hot melt welding. For parts that cannot be welded by a wedge welding machine, a hot extrusion welding machine should be used and a welding rod of raw material quality should be used to form a single weld seam for surface welding.
(2) The welding process of the hot wedge welding machine is divided into the following: pressure adjustment, temperature adjustment, speed adjustment, welding seam lap inspection, film loading into the machine, and motor start-up.
(3) There should be no oil stains and dust in the joints, and there should be no sediment, condensation, moisture and other waste materials on the surface of the edge of the HDPE anti-leakage geomembrane. When there is debris, it should be cleaned before welding
(4) At the beginning of each day’s welding, usually a 0.9mm × 0.3mm sample should be welded on site first, and the edge width should not be less than 10cm, and peeling and cutting tests should be carried out on site. The sample is qualified, then it can be used. Adjust speed, pressure and temperature for normal welding. During the welding process of the hot welding machine, you should always pay attention to the operation of the welding machine and adjust the speed and temperature according to the actual situation on the site.
(5) The welding seam should be neat and beautiful, and there should be no sliding welding or jumping phenomenon.
(6) When the length of anti-seepage geomembrane is not enough, it needs to be connected in the long direction, the transverse welds should be welded first, and then the longitudinal seams should be welded. The transverse welds should be welded. T-shaped when the distance between the transverse welds is more than 50 cm and they should not cross each other.
(7) When welding the film, pressing the dead fracture is not allowed. When laying the hdpe anti-leakage geomembrane, according to the local temperature change range and the performance requirements of the expansion and contraction caused by the temperature change of the hdpe anti-leakage geomembrane, record the value.
(8) Welding should not be done during periods of rain or when joints are covered with moisture, dew or large amounts of sand (except for protective measures).
(9) When the temperature is below 5°C, construction shall not be carried out in accordance with the specification requirements. If necessary, the welding machine must be heated before welding.
(10) When the leak-proof geomembrane is welded, whether it is powered by a local power supply or a generator, the voltage should be kept constant, and a voltage stabilizer should be used if necessary.
Construction of oil tank with geomembrane with Arian Khak Iranian company
Geomembrane sheets for insulating the foundation of oil-gas tanks, refineries, power plants, etc., with high resistance against all kinds of corrosive and chemical substances
Very reasonable price and executive group with excellent history
