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Thermal insulation material, thermal insulation pipeline and production method of thermal insulation pipeline

A thermal insulation material and thermal insulation technology, applied in chemical instruments and methods, pipeline protection through thermal insulation, pipeline protection, etc., can solve the problems of insufficient thermal insulation performance of thermal insulation pipelines, and achieve the effect of high strength and excellent thermal insulation performance

Inactive Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defect that the thermal insulation performance of the existing thermal insulation pipeline is not excellent enough, and provide a thermal insulation material with very good thermal insulation performance, a thermal insulation pipeline and a preparation method of the thermal insulation pipeline

Method used

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  • Thermal insulation material, thermal insulation pipeline and production method of thermal insulation pipeline

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preparation example Construction

[0033] The preparation method of the thermal insulation pipeline provided by the invention comprises solidifying the hollow fiber with the liquid resin attached on the surface to form a tubular fiber layer.

[0034] Specifically, the method of forming a tubular fiber layer includes, for example, winding a hollow fiber with a liquid resin attached to its surface on a pipe mandrel mold, curing the formed fiber layer to wrap the outer periphery of the pipe mandrel mold, and then removing the pipe. Mandrel mold.

[0035] In the present invention, the content of the liquid resin attached to the surface of the hollow fiber is not particularly limited, as long as the liquid resin can be solidified, the hollow fiber can be firmly combined to form a fiber layer, for example, with 100 parts by weight of the hollow fiber Based on fibers, the content of the liquid resin may be 20-150 parts by weight, preferably 40-70 parts by weight.

[0036] According to the present invention, inorganic...

Embodiment 1

[0057] This example is used to illustrate the heat insulating material and heat insulating pipe provided by the present invention and the preparation method thereof.

[0058] Be coated with the mixture layer of one deck polyurethane resin, TDI trimer and diatomaceous earth on the pipeline mandrel mold (the same below) that diameter is 76mm (wherein, with the polyurethane resin of 100 weight parts as benchmark, TDI trimer The content is 15 parts by weight, the content of diatomaceous earth is 20 parts by weight), and then the hollow polyester fiber cloth (hollow polyester fiber is 14.44 dtex single-hole hollow fiber, the hollow rate is 43%, the same below) is pre-soaked in acrylic acid ester resin and magnesium chloride mixture, and fully impregnated hollow polyester fiber cloth (in the hollow polyester fiber cloth after impregnation, based on 100 parts by weight of hollow polyester fiber cloth, the content of acrylate resin is 70 parts by weight , the content of magnesium chlo...

Embodiment 2

[0060] This example is used to illustrate the heat insulating material and heat insulating pipe provided by the present invention and the preparation method thereof.

[0061] Be that the mixture layer (wherein, with the epoxy resin of 100 parts by weight, the content of ethylenediamine is 20 parts by weight, the content of silica airgel is 15 parts by weight; the average pore diameter of silica airgel is 20nm, porosity is 97%), then the hollow glass fiber cloth (hollow glass fiber is 6.67 minutes Special single-hole hollow fiber, hollow rate 28.4%, the same below) is pre-impregnated in a mixture of epoxy resin, ethylenediamine and magnesium chloride, and the fully impregnated hollow glass fiber cloth (the impregnated hollow glass fiber cloth Among them, based on 100 parts by weight of hollow glass fiber cloth, the content of epoxy resin is 60 parts by weight, the content of ethylenediamine is 10 parts by weight, and the content of magnesium chloride is 8 parts by weight) Wrapp...

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Abstract

The invention discloses thermal insulation material, a thermal insulation pipeline and a production method of the thermal insulation pipeline. The thermal insulation material is formed by solidifying hollow fibers with surface adhered with liquid resin. The thermal insulation pipeline has the advantages of excellent thermal insulation and anti-corrosion performances and bright industrial application prospect.

Description

technical field [0001] The invention relates to an insulating material, a heat insulating pipeline and a preparation method of the heat insulating pipeline. Background technique [0002] In engineering applications in petroleum, chemical, energy and other related fields, it is often necessary to carry out long-distance thermal insulation transportation of fluids. For example, in the field of geothermal comprehensive utilization, geothermal water or other liquid heat transfer materials need to be pumped from more than 2,000 meters underground to the surface. In the northern heating season, the surface temperature is generally below zero, and the heat dissipation loss is huge. Another example is in oil fields and long-distance oil transportation, in order to avoid oil wax deposition and increase the fluidity of heavy oil, it is necessary to take insulation and heating measures for pipelines. [0003] At present, the basic structure adopted by thermal insulation pipelines at h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/02
CPCF16L59/02B29C70/34B32B5/28B32B27/04B32B27/06B32B27/28B32B27/36B32B27/38B32B27/40F16L59/029
Inventor 马蓓蓓任毅姚雪容罗水源
Owner CHINA PETROLEUM & CHEM CORP