Preparation method of steam pipeline thermal insulation material

A technology for thermal insulation materials and steam pipes, applied in the field of thermal insulation materials, can solve the problems of large heat dissipation loss of thermal insulation materials, and achieve the effects of strong ultraviolet resistance, low hygroscopicity, and good high temperature filtration.

Inactive Publication Date: 2019-06-14
常州鼎众冷暖设备工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention: Aiming at the problem of large heat dissipation loss of existing thermal insulation materials, a preparation method of thermal insulation materials for steam pipes is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037] The precursor is immersed in the mixed liquid for immersion treatment to obtain a modified precursor, and the modified precursor is placed in a freeze dryer for freeze-drying treatment to obtain a steam pipe insulation material. The preparation steps of the precursor are as follows: separately take polyurethane resin, composite surfactant, foaming agent, isophorone diamine, thermal insulation filler, and reinforcing agent; combine polyurethane resin, composite surfactant, foaming agent, isophorone Mix the ketone diamine, thermal insulation filler, and enhancer, stir at 800r / min for 1 hour to obtain a blend; pour the blend into a mold, and place the mold in an oven at a temperature of 70°C for heat preservation and foaming for 1 hour , Cool to room temperature, get the precursor. The preparation steps of the mixed solution are as follows: mix ethyl orthosilicate and absolute ethanol at a mass ratio of 1:20, stir and disperse ultrasonically for 5 minutes at a stirring spee...

example 2

[0039] The precursor is immersed in the mixed liquid for immersion treatment to obtain a modified precursor, and the modified precursor is placed in a freeze dryer for freeze drying treatment to obtain a steam pipe insulation material. The preparation steps of the precursor are as follows: separately take polyurethane resin, composite surfactant, foaming agent, isophorone diamine, thermal insulation filler, and reinforcing agent; combine polyurethane resin, composite surfactant, foaming agent, isophorone Mix the ketone diamine, thermal insulation filler, and enhancer, stir at 900r / min for 1 hour to obtain a blend; pour the blend into a mold, and place the mold in an oven at a temperature of 80°C for heat preservation and foaming for 1 hour , Cool to room temperature, get the precursor. The preparation steps of the mixed solution are as follows: mix ethyl orthosilicate and absolute ethanol at a mass ratio of 1:20, stir and disperse ultrasonically for 8 minutes at a stirring spee...

example 3

[0041] The precursor is immersed in the mixed liquid for immersion treatment to obtain a modified precursor, and the modified precursor is placed in a freeze dryer for freeze drying treatment to obtain a steam pipe insulation material. The preparation steps of the precursor are: respectively take polyurethane resin, composite surfactant, foaming agent, isophorone diamine, thermal insulation filler, and reinforcing agent; combine polyurethane resin, composite surfactant, foaming agent, isophorone Mix ketone diamine, thermal insulation filler, and enhancer, stir at 1000r / min for 2 hours to obtain a blend; pour the blend into a mold, and place the mold in an oven at a temperature of 90°C for 2 hours for insulation and foaming , Cool to room temperature, get the precursor. The preparation steps of the mixed solution are as follows: mix ethyl orthosilicate and absolute ethanol at a mass ratio of 1:20, stir and disperse ultrasonically for 10 minutes at a stirring speed of 400 r / min a...

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Abstract

The invention relates to a preparation method of a steam pipeline thermal insulation material, and belongs to the technical field of thermal insulation materials. A basalt fiber honeycomb fabric prepared from sepiolite and expanded perlite as heat preservation fillers by a respiration pattern method is adopted as a reinforcing material to prepare polyurethane foam prepared by compounding with polyurethane resin by a medium-temperature foaming method, the prepared steam pipeline thermal insulation material has good thermal insulation performance, and the basalt fiber honeycomb fabric is added,so that the tensile strength of the steam pipeline thermal insulation material is improved; the sepiolite and the expanded perlite have the advantages of low heat conductivity coefficient, high temperature resistance, acid resistance, alkali resistance, salt resistance, oil resistance, and the like; the prepared steam pipeline thermal insulation material has the advantages of small density, high heat resistance, small heat conductivity coefficient, high compressive strength and small shrinkage rate, and the steam pipeline thermal insulation material has the advantages of excellent thermal insulation performance, ultralow density, flame retardancy, good light transmittance and the like.

Description

Technical field [0001] The invention relates to a preparation method of a steam pipeline thermal insulation material, and belongs to the technical field of thermal insulation materials. Background technique [0002] With the rapid development of industry, in order to save energy, various thermal pipelines and equipment have put forward higher requirements on the performance of thermal insulation materials. The heavy oil thermal recovery steam pipeline is located in the field, and not only suffers from cold winter and summer heat, sun and wind, rain and snow erosion, atmospheric corrosion, external force impact, etc., but also the influence of water hammer and pressure fluctuation inside the pipeline causes frequent pipeline vibration In this way, cracks are prone to appear in the butt joints of the thermal insulation pipe shell and the coating (or paste) thermal insulation structure, the thermal conductivity increases, and the heat dissipation loss is likely to increase. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/40C08J9/08C08J9/00C08L75/04C08K3/34C08K7/26C08K9/02C08K7/10C08K13/06
Inventor 许斌
Owner 常州鼎众冷暖设备工程有限公司
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