Oil transportation pipeline with corrosion-prevention function

Abstract

The invention discloses an oil transportation pipeline with a corrosion-prevention function. The oil transportation pipeline comprises an inner pipeline body and an outer pipeline body arranged outside the inner pipeline body in a sleeving mode. A thermal insulation layer and a corrosion prevention layer are sequentially arranged between the inner pipeline body and the outer pipeline body from inside to outside, a plurality of thermal insulation pipes are arranged in the thermal insulation layer, the positions outside the thermal insulation pipes in the thermal insulation layer are filled withthermal insulation rock wool, and jagged partition plates are arranged in the thermal insulation pipes; and each partition plate divides the corresponding thermal insulation pipe into two cavities, the interior of the cavity which is close to the inner pipeline body is filled with foam, the interior of the cavity which is far away from the inner pipeline body is filled with a drying agent, and aplurality of flow guiding rings are sequentially arranged on the outer wall above the outer pipeline body. According to the oil transportation pipeline with the corrosion-prevention function, throughthe special structure, the pipeline has good thermal insulation performance, oil plugging can be avoided, the convenience of oil transportation is improved, an asphalt layer of the pipeline is omitted, a light thermal insulation material is adopted, the mass is greatly lowered, the burden of the pipeline is reduced, the stability of the oil pipeline structure is enhanced, a corrosion prevention layer is arranged, and therefore the corrosion prevention performance of the pipeline is greatly improved.

Description

technical field [0001] The invention relates to an oil pipeline, in particular to an oil transportation pipeline with anti-corrosion function. Background technique [0002] Petroleum, one of the main objects of geological exploration, is a viscous, dark brown liquid known as the "blood of industry". There are oil reserves in parts of the upper crust. The main component is a mixture of various alkanes, naphthenes and aromatic hydrocarbons. After oil extraction, it must be transported to the corresponding processing department in order to be better utilized, and the oil pipeline for transporting oil is an essential equipment. In the process of oil extraction, due to the high wax content of oil and the high concentration of oil, it often causes difficulties in oil transportation in oil pipelines. Especially in cold seasons, the flow resistance of oil in oil pipelines will increase significantly. Heat up or increase the delivery pressure to solve the problem of difficult oil ...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the existing petroleum pipeline usually utilizes the thermal insulation layer to reduce the loss of oil heat in the pipeline in order to keep it warm. However, it has some deficiencies. There is air between the layer and the inner cylinder, and its insulation effect is not good

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