Cabin pipeline using super thermal insulation material and preparation method thereof

A thermal insulation material and super technology, applied in the direction of thermal insulation protection pipeline, pipeline protection, heat exchange equipment, etc., can solve the problems of increased cost, corrosion, unfavorable steel pipe handling and installation, etc., to achieve improved efficiency, long service life, The effect of excellent thermal insulation and mechanical properties

Active Publication Date: 2022-06-07
中建材科创新技术研究院(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing anti-corrosion technology of the natural gas steel pipe in the cabin is to add a coating on the steel pipe, and form an insulating material through the coating to prevent the electrolyte in the seawater from directly contacting the steel pipe, or to overcome the above problems by increasing the wall thickness of the steel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation method of the cabin pipeline using the super-insulation material includes the following steps:

[0039] (1) Degrease the surface of the aluminum alloy conductive inner tube and then sandblast it, and then heat it to 200°C for preheating;

[0040] (2) Take 60g of epoxy resin, 20g of amine-based curing agent, 0.3g of a mixture of silane coupling agent KH530, silane coupling agent KH550, silane coupling agent KH570, and 20g of titanium dioxide to prepare epoxy coating, spray it until preheating The surface of the aluminum alloy conductive inner tube is sprayed with a thickness of 20-50μm, and then cured at 230 ° C for 1h to form an anti-corrosion coating after spraying;

[0041] (3) Winding super thermal insulation material on the anti-corrosion coating to form a thermal insulation layer;

[0042] (4) Coating phenolic resin on the surface of the thermal insulation layer, the coating thickness is 2-3mm, and after curing at 230 ° C for 1 hour, a resin sealin...

Embodiment 2

[0044] The preparation method of the cabin pipeline using the super-insulation material includes the following steps:

[0045] (1) Degrease the surface of the copper alloy conductive inner tube and then sandblast it, then heat it to 170°C for preheating;

[0046] (2) Take 50 g of epoxy resin, 10 g of amine-based curing agent, 0.1 g of a mixture of silane coupling agent KH550 and silane coupling agent KH560, and 20-40 g of a mixture of titanium dioxide and corundum powder. The surface of the copper alloy conductive inner tube after heating is sprayed with a thickness of 20-50μm, and after spraying, it is cured at 220 ° C for 0.5h to form an anti-corrosion coating;

[0047] (3) Winding super thermal insulation material on the anti-corrosion coating to form a thermal insulation layer;

[0048] (4) Coating epoxy resin on the surface of the thermal insulation layer, the coating thickness is 2-3mm, and curing at 220 ° C for 0.5 hours to form a resin sealing layer, that is, the cabi...

Embodiment 3

[0050] The preparation method of the cabin pipeline using the super-insulation material includes the following steps:

[0051] (1) Degrease the surface of the aluminum alloy conductive inner tube and then sandblast it, then heat it to 230°C for preheating;

[0052](2) 70g epoxy resin, 20g amine-based curing agent, 0.5g mixture of silane coupling agent KH530, silane coupling agent KH560, and 40g wollastonite powder were used to prepare epoxy coating, which was sprayed to the preheated aluminum alloy to conduct electricity On the surface of the inner tube, the spray thickness is 20-50μm, and the anti-corrosion coating is formed by curing at 240℃ for 1.5h after spraying;

[0053] (3) Winding super thermal insulation material on the anti-corrosion coating to form a thermal insulation layer;

[0054] (4) Coating benzoxazine resin on the surface of the thermal insulation layer, the coating thickness is 2-3mm, and curing at 240 ° C for 1.5 hours to form a resin sealing layer, that i...

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PUM

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Abstract

The invention discloses a cabin pipeline applying a super thermal insulation material and a preparation method thereof, and belongs to the field of marine oil and gas pipelines, the cabin pipeline comprises a conductive inner pipe, an anti-corrosion coating coated on the conductive inner pipe, a thermal insulation layer wound on the anti-corrosion coating and formed by the super thermal insulation material, and a resin sealing layer coated outside the thermal insulation layer. The cabin pipeline applying the super thermal insulation material is high in impact resistance, long in service life and excellent in mechanical property and thermal insulation property. The conductive inner pipe is adopted and has excellent corrosion resistance to liquefied natural gas in a pipeline, and compared with a conventional steel pipe, the mass of the conductive inner pipe is obviously reduced, so that the carrying and mounting cost is saved, and the efficiency is improved; the protective layer formed by the anti-corrosion coating and the resin sealing layer can prevent the conductive inner pipe from being directly exposed in the environment due to long-time seawater infiltration or accidental damage of the outer layer, electrochemical corrosion is avoided, and the corrosion resistance is further improved.

Description

technical field [0001] The invention relates to a pipeline and a preparation method thereof, in particular to a cabin pipeline using super-insulation materials and a preparation method thereof, belonging to the field of offshore oil and gas pipelines. Background technique [0002] There are three modes of transportation of LNG: shipping, trucking and pipeline transportation. Among these three modes of transportation, shipping is the main mode of transportation of LNG, that is, natural gas from oil wells is received through transportation pipelines, and after being processed and processed qualified , stored in the cabin for transportation, accounting for more than 80% of the world's LNG transportation volume. [0003] There will be a large amount of oil pollution, toxic products, dust and harmful substances produced by the corruption of certain organic substances in the cabins of LNG transportation. Besides, due to the long-term voyage at sea, the cabins will not only be corr...

Claims

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Application Information

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IPC IPC(8): F16L9/14F16L58/04F16L59/02B05D3/12B05D3/00B05D1/02C09D163/00C09D161/06C09D5/08
CPCF16L9/14F16L58/04F16L59/029F16L59/028B05D3/12B05D3/002B05D1/02C09D163/00C09D161/06C09D5/08
Inventor 张忠伦王明铭辛志军
Owner 中建材科创新技术研究院(山东)有限公司
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