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Installation and construction method of heat preservation layer and outer protective plate of high-temperature high-pressure pipeline

A technology of pipeline thermal insulation layer, high temperature and high pressure, applied in pipeline protection, thermal insulation, pipeline protection through thermal insulation, etc., can solve problems such as poor thermal insulation performance, thick pipeline thermal insulation layer, tight pipeline layout space, etc., to save space and reduce thickness. Insulation thickness, reducing the effect of reserved holes

Inactive Publication Date: 2019-08-09
POWER CHINA HENAN ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aluminum silicate cotton is currently a commonly used thermal insulation material for high-temperature and high-pressure pipelines. Compared with the material of the present invention, aluminum silicate cotton has a larger thermal conductivity and poor thermal insulation performance. The thermal insulation performance of aluminum silicate cotton can only be guaranteed when it reaches a larger thickness, resulting in pipelines The insulation layer is thick, the pipe diameter is bloated, the pipe layout space is tight, and the holes reserved for passing through the wall are large

Method used

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  • Installation and construction method of heat preservation layer and outer protective plate of high-temperature high-pressure pipeline
  • Installation and construction method of heat preservation layer and outer protective plate of high-temperature high-pressure pipeline
  • Installation and construction method of heat preservation layer and outer protective plate of high-temperature high-pressure pipeline

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Embodiment Construction

[0051] Below in conjunction with accompanying drawing, the present invention will be further explained and illustrated:

[0052] see Figure 1-Figure 3 , an installation and construction method of a high-temperature and high-pressure pipeline insulation layer and an outer guard plate, the specific steps are as follows:

[0053] Preparations include:

[0054] 1) Prepare the airgel thermal insulation blanket, metal plate, galvanized iron wire, plate connecting strip, lining strip, self-tapping screw required for construction;

[0055] 2) According to the diameter of the pipe and the size of the elbow, measure and calculate the position of the hole in the wall;

[0056] 3) Determine the length of the airgel insulation blanket required for each insulation layer of the pipeline by direct wrapping measurement;

[0057] Specific steps:

[0058] 1) Laying of pipeline airgel thermal insulation blanket insulation layer:

[0059] 1. Laying of airgel thermal insulation felt insulatio...

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Abstract

The invention discloses an installation and construction method of a heat preservation layer and an outer protective plate of a high-temperature high-pressure pipeline. Aerogel heat insulation felt isapplied to pipeline heat preservation. The outer protective plate adopts a metal flat plate. According to the diameter of the pipeline and the dimension of an elbow, the reserved position of a hole in a wall is measured and calculated; the needed length of each layer of aerogel heat insulation felt is determined in a direct wrapping measurement manner. By the adoption of the installation and construction method, on the premise of guaranteeing the surface temperature of the high-temperature high-pressure pipeline reaches the standard, the back of the heat preservation layer is thickened, a reserved hole is shrunk, and the purpose of saving space is achieved; and compared with a traditional technology, the line heat loss amount and the energy consumption cost are lowered, and the energy saving effect is remarkably improved.

Description

[0001] 1. Technical field: [0002] The invention relates to an installation and construction method of a high-temperature and high-pressure pipeline insulation layer and an outer guard plate arranged in a narrow space, and is especially suitable for newly-built power plants, chemical plants or petrochemical plants. [0003] 2. Background technology: [0004] With the increasing development of modernization, the installation space of high-temperature and high-pressure pipelines in newly-built power plants, chemical plants or petrochemical plants tends to be concentrated and densely arranged, and the surface temperature of high-temperature and high-pressure pipelines must not exceed 50°C, and high-temperature and high-pressure pipelines must be heat-insulated. Aluminum silicate cotton is currently a commonly used thermal insulation material for high-temperature and high-pressure pipelines. Compared with the material of the present invention, aluminum silicate cotton has a larger ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/02
CPCF16L59/028
Inventor 马新文王聪蔡萌伟赵亚学孙树波郝卫星赵齐轩
Owner POWER CHINA HENAN ENG CO LTD
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