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A painting process for thermal pipelines

A thermal pipeline and painting technology, applied in the field of painting technology, can solve the problems of inconvenient thermal insulation construction and high construction technical requirements for thermal pipelines with special structures, and achieve the effects of simplifying pipeline protection procedures, low protection costs, and broad application and promotion prospects.

Active Publication Date: 2019-06-11
开平市日固力涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above traditional pipeline insulation methods are inconvenient for some thermal pipelines with special structures. At the same time, technical personnel are required to carry out strict and accurate calculations. run, run, drip, leak"

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of high-temperature heat-resisting coating, its mass composition is organosilicon water-based resin 25%, water-based epoxy resin 10%, water-based polyurethane resin 10%, 600 mesh vermiculite powder 15%, 800 mesh perlite powder 20%, 1250 mesh diatom Soil 10%, water-based silicone oil 3%, sodium hexametaphosphate 2%, sodium benzoate 5%.

[0021] Taking the high-temperature heat transfer pipeline as an example, the specific painting method is as follows:

[0022] (1) Cleaning of the outer surface of the thermal pipeline:

[0023] a) Rust removal: Rust floating rust, rust bubbles, grooves, seams and hidden parts need to be thoroughly removed by sandblasting, steel brush grinding, pickling, etc. After cleaning, it must be rinsed with clean water and dried;

[0024] b) Degreasing and ash removal: wash with water or cleaning agent, and dry.

[0025] (2) Apply anti-corrosion layer:

[0026] Dilute Riguli NC10 high temperature resistant anti-corrosion coating with 10% ...

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Abstract

The invention discloses a process for painting heat pipelines. High-temperature-resistant heat-insulation coating can be painted on the heat pipelines by the aid of the process. The process has the advantages that heat-insulation materials in the prior art can be excellently replaced by the high-temperature-resistant heat-insulation coating, and the high-temperature-resistant heat-insulation coating can resist high temperatures (the maximum temperatures are 1100 DEG C) and is low in heat conduction [the heat conductivity coefficient is 0.03 W / (m K)]; pipeline protection working procedures can be greatly simplified by the aid of the process for painting the heat pipelines, construction can be facilitated, and the process is low in protection cost, has a broad application and popularization prospect and also can be used for other engineering with anticorrosion, heat-insulation, waterproof and fireproof requirements.

Description

technical field [0001] The invention relates to a painting process, in particular to a painting process of a thermal pipeline. Background technique [0002] Depending on the purpose of the pipeline, the required protection measures are also different. Some pipelines only need anti-corrosion protection, and some pipelines only need thermal insulation protection. For pipeline anticorrosion, two-layer structure of polyethylene jacket and asphalt glass cloth is mainly used. For heat preservation, rigid polyurethane foam material is mainly used to make the overall structure of the pipeline tight. For high-temperature (600°C) heat transmission pipelines, a composite structure consisting of an anti-corrosion layer, an insulation layer and a protective layer is generally used. [0003] Among them, asphalt, polyurethane, resin, polyethylene-coated pipe and other materials are usually used for the anti-corrosion layer. Asphalt has better insulation and stronger bonding ability, but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L58/02F16L59/02F16L57/00C09D183/00C09D163/00C09D175/04C09D7/61
CPCC08K2201/014C08L2201/08C08L2205/03C09D183/00F16L57/00F16L58/02F16L59/028C08L63/00C08L75/04C08K3/34
Inventor 刘昆虎
Owner 开平市日固力涂料有限公司
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