Petrochemical engineering delivery pipeline

Abstract

The invention relates to the field of petroleum transportation, in particular to a petrochemical engineering delivery pipeline. The petrochemical engineering delivery pipeline comprises a first unit pipe and a second unit pipe. A first triangular protective shell and a second triangular protective shell are arranged outside the first unit pipe and the second unit pipe correspondingly. First port pipes are fixedly connected with the left and right sides of the first unit pipe correspondingly. The side, close to the second unit pipe, of one first port pipe is fixedly connected with a first rightflange, and the side, far away from the second unit pipe, of the other first port pipe is fixedly connected with a first left flange. Second port pipes are fixedly connected with the left and right sides of the second unit pipe correspondingly. The side, close to the first unit pipe, of one second port pipe is fixedly connected with a second left flange, and the side, far away from the first unitpipe, of the other second port pipe is fixedly connected with a second right flange. The first unit pipe and the second unit pipe are connected through the first right flange, the second left flangeand fixing bolts.

Description

technical field [0001] The invention relates to the field of petroleum transportation, in particular to a petrochemical transportation pipeline. Background technique [0002] Petroleum is one of the main objects of geological exploration. It is a viscous, dark brown liquid known as "industrial blood". There are oil reserves in some areas of the upper crust; the main components are various alkanes, naphthenes, and aromatic hydrocarbons The oil-forming mechanism of petroleum has two theories of biosedimentary oil and petrochemical oil. The former is more widely accepted. It is believed that oil is formed by organisms in ancient oceans or lakes after a long evolution. It belongs to biosedimentary oil and is non-renewable. The latter believes that oil is produced by the carbon in the earth's crust itself, which has nothing to do with biology and is renewable; the properties of oil vary according to the place of origin, the density is 0.8-1.0g / cm3, the viscosity range is very wid...

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Problems solved by technology

[0003] The exploitation of offshore oil requires the laying of oil pipelines on the seabed for oil transportation. Unlike land, submarine oil pipelines need to withstand huge water pressure and various conditions brought about by harsh environments. At present, in offshore oil exploitation, The annual repair and maintenance costs for submarine pipelines are huge, and when the pipelines are connected, the underwater operation time is too long, so it is necessary to design an oil transportation pipeline with strong pressure resistance, which can adapt to the harsh environment of the seabed and is easy to connect, and can be used for a long time Sometimes, due to special reasons such as artificial maintenance and installation of oil pipelines, or natural disasters, the flange connection is easy to be loosened due to external impact, and then the oil transportation works normally. Therefore, a petrochemical pipeline is proposed to solve the above problems

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