Classification of storage tanks

Polyethylene plastic storage tanks can store and react most inorganic acids, alkalis, salt solutions and most organic solvents, and can partially replace stainless steel, titanium, nickel, high-grade alloy steel and other materials. Plastic storage tank products comply with the dangerous goods storage and transportation regulations It is an ideal storage container for storing reaction chemical corrosion solutions and clean solutions. Today, the editor will lead everyone to understand the seven characteristics of plastic storage tanks.

　　一. Due to the excellent performance of linear low-density polyethylene (LLDPE) and the special structure of the plastic storage tank, the service life is more than 15 years.

　　二. The plastic storage tank (PE) has good integrity in one-time molding, no welds, never leaks, impact resistance, high tensile strength, good oxidation resistance and aging resistance, and it meets hygienic food standards.

    3. The chemical resistance is very excellent. Except for a few solutions that can swell it, it can almost be resistant to most substance solutions.

　　4. Plastic storage tanks have the characteristics of internal and external corrosion protection, and can be placed in a highly corrosive environment.

　　5. Generally, the operating conditions of Aoen storage tanks are normal temperature and normal pressure; in special cases, the operating conditions of storage tanks can be temperature less than 70℃ and hydraulic pressure less than 1kg/cm2.

Six. Rotomolding anticorrosive polyethylene plastic storage tanks have great advantages in large-scale, large-capacity and large-volume products. Although they are large in size, they still maintain the characteristics of one-time molding integrity, which is not achieved by other storage tank processes. Place.

　　 Seven. Compared with traditional anticorrosive storage tanks, the price is low, and the performance-price ratio is high.

　　 The above is the relevant content of the characteristics of polyethylene plastic storage tanks organized and introduced by the editor today. I hope it will be helpful to everyone. If you are interested in the knowledge of plastic storage tanks, please call our company or follow our website at any time. We will provide you with the best quality service!

Small storage tank, great use, Changzhou Aoen storage tank

Storage tanks can be divided into metal tanks and non-metal tanks according to their manufacturing materials. In the chemical, petrochemical, and petroleum industries, metal storage tanks, that is, metal oil tanks, are mainly used to store raw oil other than liquefied gas. (1) Classification of oil tanks Metal oil tanks can be classified according to the location, geometric shape and different structural forms of the oil tank. 1. According to the location of the oil tank, it is divided into three types: above-ground oil tank, semi-underground oil tank and underground oil tank. (1) Oil tanks on the ground. Refers to the bottom of the oil tank at the design elevation of ±0.00 and above; the bottom of the tank is below the design elevation of ±0.00 but not more than 1/2 of the height of the tank, also known as the above-ground oil tank. (2) Semi-underground oil tank. Semi-underground oil tank means that the oil tank is buried deeper than 1/2 of its height, and the maximum height of the liquid level of the oil tank does not exceed the design elevation of ±0.00 0.2m. (3) Underground oil tank. Underground oil tank refers to an oil tank whose liquid level is 0.2m below the design elevation of ±0.00. 2. Divided according to the geometric shape of the oil tank. According to the geometric shape of the oil tank, it can be divided into: (1) Vertical cylindrical tank; (2) Horizontal cylindrical tank; (3) Spherical tank; 3. According to different oil tanks The structure can be divided into: fixed roof storage tank, non-torque roof storage tank, floating roof storage tank and sleeve roof storage tank. (1) Fixed-roof storage tanks: Fixed-roof storage tanks can be divided into cone-roof storage tanks, vault-roof storage tanks, and self-supporting umbrella-shaped storage tanks. (2) Non-torque roof storage tanks (catenary-type non-torque storage tanks): Non-torque roof storage tanks are made of thin steel plates based on the catenary theory. The longitudinal section of the top plate is in the shape of a catenary curve. Since the tank roof of this shape is only subjected to tensile force and does not produce bending moment, it is called a momentless roof oil tank. (3) Floating roof storage tanks: Floating roof storage tanks are divided into floating roof storage tanks and inner floating roof storage tanks (inner floating roof storage tanks with lids). 1) Floating roof storage tanks. The floating roof of a floating roof storage tank is a floating roof that floats on the surface of the liquid storage. It floats up and down with the input and output of the liquid. There is an annular space between the floating roof and the tank wall, and this annular space has a sealing device. , So that the liquid in the tank is isolated from the atmosphere when the top cover floats up and down, thereby greatly reducing the evaporation loss of the liquid storage during storage. When using floating roof tanks to store oil, it can reduce oil loss by about 80% compared with fixed roof tanks. 2) Internal floating roof storage tank. The inner floating roof storage tank is a floating roof tank with a tank roof, and it is also a new type of storage tank that combines a vault roof tank and a floating roof tank. The top of the inner floating roof storage tank is the combination of the dome and the floating roof, the outside is the dome, and the inside is the floating roof. Internal floating roof storage tanks have unique advantages: First, compared with floating roof tanks, because of the fixed roof, it can effectively prevent the intrusion of wind, sand, rain, snow or dust, and absolutely guarantee the quality of the liquid storage. At the same time, the inner floating plate floats on the liquid surface, so that the liquid has no vapor space, reducing evaporation loss by 85% to 96%; reducing air pollution, reducing the risk of fire and explosion, and easily ensuring the quality of liquid storage, especially suitable for storing high-grade gasoline and jet fuel And toxic petrochemical products; because there is no gas space on the liquid surface, it reduces the corrosion of the tank wall and the top of the tank, thereby prolonging the service life of the storage tank. Second, under the same sealing condition, it can further reduce the evaporation loss compared with the floating roof. . Disadvantages of internal floating roof storage tanks: Compared with vault roof tanks, steel plate consumption is more, and construction requirements are high; compared with floating roof tanks, maintenance is inconvenient (sealed structure), and the storage tank is not easy to be large-scaled. Currently, it generally does not exceed 10000m3 .