Petrochemical conveying pipeline

Abstract

The invention belongs to the technical field of pipelines, and particularly relates to a petrochemical conveying pipeline. The petrochemical conveying pipeline comprises pipeline bodies, the two pipeline bodies are connected through a left flange and a right flange, the left flange and the right flange are fixedly connected through a set of bolts, first sealing ring grooves are formed in the sides, in contact with each other, of the left flange and the right flange, O-shaped sealing rings are arranged in the first sealing ring grooves, a second sealing ring groove is formed in the end face, atthe outer ring of the corresponding first sealing ring groove, of the left flange, metal with lower hardness is inlaid in the second sealing ring groove, and a convex ring matched with the second sealing ring groove is arranged at the position, corresponding to the second sealing ring groove, of the end face of the right flange. According to the petrochemical conveying pipeline, the metal in thesecond sealing ring groove is extruded through the convex ring, so that the metal with lower hardness in the second sealing ring groove fills a gap between the convex ring and the second sealing ringgroove after being extruded, secondary sealing is carried out at the joint between the pipeline bodies, the sealing performance of the pipeline bodies is further guaranteed, and the potential safety hazard caused by leakage of petrochemical liquid in the pipeline bodies is prevented.

Description

technical field [0001] The invention belongs to the technical field of pipelines, in particular to a petrochemical transportation pipeline. Background technique [0002] Petroleum, also known as crude oil, is a viscous, dark brown liquid. The main components are: oil, colloid, asphaltenes, and carbonaceous; it is solid at room temperature. During the transportation of oil, there are often residual oil in the pipeline. [0003] The oilfield heating furnace is an important equipment in the oil-water separation system for crude oil production. During the operation, the oil pipeline often has the problem of fouling, and the blockage of the heat exchange pipeline increases the pressure and increases the power consumption. At present, the pipelines used in oilfield heating furnaces are designed with larger diameters to prolong the time of scale blockage, which not only wastes steel, but also increases transportation and installation costs. Contents of the invention [0004] In...

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Problems solved by technology

[0004] In order to make up for the deficiencies of the existing technology and solve the problem of residual oil often remaining in the pipeline during the transportation of petroleum, the pipeline used in the heating furnace often suffers from fouling, and the blockage of the heat exchange pipeline increases the pressure and increases the power. At present, the pipelines used in oilfield heating furnaces are designed with larger diameters to prolong the time of scale blockage, which not only wastes steel materials, but also increases transportation and installation costs. A petrochemical transportation pipeline proposed by the present invention

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