Double-wall oil storage tank made of fiber reinforced composite material and manufacturing method of double-wall oil storage tank

Abstract

The invention discloses a double-wall oil storage tank made of a fiber reinforced composite material and a manufacturing method of the double-wall oil storage tank and belongs to the field of petrifaction storage equipment. The oil storage tank comprises a cylindrical tank body and end sockets, wherein the cylindrical tank body and the end sockets are each formed by an inner wall and an outer wall in a combined mode. Hollow layers are arranged between the inner wall and the outer wall of the cylindrical tank body and between the inner wall and the outer wall of each end socket correspondingly, and the hollow layers are made in the mode that 3D hollow fabrics are soaked with heat convertible resin and then cured and formed. The inner wall and the outer wall of the cylindrical tank body are made of the continuous fiber reinforced composite material. The manufacturing method comprises the steps that two semi-cylindrical tank body inner walls are formed through a prefabricated mold, wherein one end of each semi-cylindrical tank body inner wall is provided with the corresponding end socket; after demolding, the two semi-cylindrical tank bodies are in butt joint so as to form the inner wall of the cylindrical tank body with the sealed end sockets; then the hollow layer and the outer wall of the tank body are machined; and finally reinforcing ribs and accessories are installed. According to the double-wall oil storage tank, the cylinder wall structure and the end sockets at the two ends are formed correspondingly, a bearing structure is made of the continuous fiber composite material, and an auxiliary bearing structure part is made of non-continuous fiber; and the double-wall oil storage tank is reasonable in structure, light in weight, long in service life, resistant to corrosion, good in seepage resistance, free of maintenance, high in bearing capacity and easy to implement.

Description

technical field [0001] The invention relates to an oil storage tank and a preparation method thereof; in particular, it relates to a fiber-reinforced composite material double-wall oil storage tank and a preparation method thereof. The utility model belongs to the technical field of storage equipment for petrochemical products. Background technique [0002] With the development of the economy, the safe storage and transportation of a large number of petroleum products, natural gas, and explosive and flammable chemicals at home and abroad have gradually attracted people's attention. In the prior art, oil storage tanks are mostly made of metal. Metal oil storage tanks are heavy in weight, poor in corrosion resistance, and occupy a large area; moreover, they are prone to leakage after corrosion, causing groundwater and soil pollution at the location where the oil storage tanks are placed, and Due to the difference in oil quality, internal precipitation will seriously affect th...

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Problems solved by technology

In the prior art, oil storage tanks are mostly made of metal. Metal oil storage tanks are heavy in weight, poor in corrosion resistance, and occupy a large area; moreover, they are prone to leakage after corrosion, causing groundwater and soil pollution at the location where the oil storage tanks are placed, and Due to the difference in oil quality, internal precipitation will seriously affect the service life of the oil storage tank, and there is a great potential safety hazard

In recent years, there is also information about the successful preparation of fiber-reinforced composite double-wall oil storage tanks, but most of the methods used are short-fiber reinforced injection molding, and its carrying capacity is not high; it can no longer meet the needs of safe storage of various petrochemical products

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