A surface corrosion-resistant and heat-insulating composite material for oilfield storage equipment and pipelines

Abstract

The invention provides a surface corrosion-resistant thermal insulation composite material for oil field storage equipment and a conveying pipeline. The material comprises a bottom layer, a thermal insulation middle layer and an organic corrosion-resistant surface layer, wherein the bottom layer is directly attached to the outer surfaces of the oil field storage equipment and the conveying pipeline, the thermal insulation middle layer is of a multi-layer structure, and the organic corrosion-resistant surface layer is composed of epoxy resin. A composite structure is used as a minimum unit group, multiple composite structures are repeatedly stacked to form the thermal insulation middle layer, each composite structure comprises a three-stage thermal insulation unit layer, the first-stage thermal insulation unit layer is a coarse particle silicon dioxide porous powder layer / rock wool layer, the third-stage thermal insulation unit layer is a fine particle silicon dioxide porous powder layer / rock wool layer, and the second-stage thermal insulation unit layer is a mixed-particle-size silicon dioxide porous powder layer / rock wool layer. The corrosion-resistant thermal insulation compositematerial can be used for thermal insulation on the outer surfaces of an oil-gas storage equipment and an oil-gas conveying pipeline, the effect of the material is excellent, and the construction method is simple and convenient.

Description

technical field [0001] The invention relates to a thermal insulation material on the surface of oilfield storage equipment and transmission pipelines, in particular to a surface corrosion-resistant thermal insulation composite material for oilfield storage equipment and transmission pipelines and a preparation method thereof. Background technique [0002] The low temperature problem caused by seasonal alternation and weather changes seriously affects the normal use of oil and gas storage equipment and oil and gas pipelines in oil fields. Therefore, the insulation of oil and gas storage equipment and oil and gas pipelines in oil fields is very important in winter or when the temperature drops suddenly. [0003] Filling or winding the outer surface of oil and gas storage equipment and oil and gas pipelines with thick organic matter, and using polyurethane as an anti-corrosion layer as an insulation layer is one of the common methods to solve this kind of problem, but its bigges...

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Problems solved by technology

[0003] Filling or winding the outer surface of oil and gas storage equipment and oil and gas pipelines with thick organic matter, and using polyurethane as an anti-corrosion layer as an insulation layer is one of the common methods to solve this kind of problem, but its biggest disadvantage lies in oil and gas storage. The outer surface of equipment and oil and gas transmission pipelines needs to leave enough space for the preparation of the insulation layer, and the outer surface of oil and gas storage equipment and oil and gas transmission pipelines needs to have a regular shape structure, otherwise such a thick insulation layer is difficult to achieve

Using hollow pipelines to circulate hot water at a specific temperature to ensure that oil and gas storage equipment and oil and gas transmission pipelines are not significantly affected by external temperatures is also a relatively common treatment method, but there are also requirements for thermal insulation space and greater control difficulty and complexity The problem

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