Rotational-moulding polyethylene plastic and steel composite storage tank for ship

Abstract

The invention relates to a rotational-moulding polyethylene plastic and steel composite storage tank for a ship, which comprises a tank and is characterized in that the tank comprises a tank body, a tank bottom and an upper sealing head, wherein the tank body is of a cylindrical structure, the lower edge of the tank body is in arced transitional connection with the edge of the tank bottom, and the upper edge of the tank body is connected with the edge of the upper sealing head; the central part of the upper sealing head extends upwards to form a tank neck which is used for the extension of the deck of a ship body to facilitate feeding and discharging; the outer wall on the upper part of the tank neck is provided with a large connection flange, and the large connection flange is elastically connected with a battening-down flange of the ship body; and a feeding opening and a discharging opening are distributed on the periphery of the top of the tank neck, and a rapid openable manhole is arranged in the center of the top of tank neck. The rotational-moulding polyethylene plastic and steel composite storage tank for the ship has a simple, skillful and reasonable structure, and the integral storage tank for the ship can be matched with the structure of the ship body so that the space on the ship can be utilized to the maximum extent; and the wall of the storage tank is of a plastic and steel composite structure, thus the rotational-moulding polyethylene plastic and steel composite storage tank has better resistances to corrosion, abrasion, temperature and pressure.

Description

technical field [0001] The invention relates to a storage container, in particular to a rotationally molded polyethylene-plastic-steel composite marine storage tank. Background technique [0002] In many industries such as chemical industry, medicine, biology, and pesticide, a large amount of organic and inorganic acid-base solutions and organic solvents are used, and the storage and transportation of these liquids are mainly completed by storage tanks. Therefore, the service life and corrosion resistance of the storage tank are very important. Marine storage tanks are commonly used transportation and storage containers. Most of the existing traditional storage tanks are all-plastic storage tanks, which are easy to deform, have low safety performance, limited volume, and insufficient storage capacity. [0003] In addition, in order to improve the corrosion resistance of the existing storage tanks, the interior of the tank is generally lined with plastic plates, rubber, glas...

AI Technical Summary

Problems solved by technology

Marine storage tanks are commonly used transportation and storage containers. Most of the existing traditional storage tanks are all-plastic storage tanks, which are easy to deform, have low safety performance, limited volume, and insufficient storage capacity.

[0003] In addition, in order to improve the corrosion resistance of the existing storage tanks, the interior of the tank is generally lined with plastic plates, rubber, glass fiber reinforced plastics, etc., and the adhesive layer is combined with the inner wall of the storage tank by spraying. It is easy to peel off after a long time, the safety performance is not high, and there are defects in corrosion resistance, wear resistance, temperature resistance and pressure resistance

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