Novel thermal insulation and heat preservation hose and production method thereof

Abstract

The invention discloses a novel thermal insulation and heat preservation hose and a production method thereof. The novel thermal insulation and heat preservation hose comprises a pressure bearing layer, the inner wall and the outer wall of the pressure bearing layer are covered with a first thermal insulation and heat preservation pipe layer and a second thermal insulation and heat preservation pipe layer respectively, the inner wall of the first thermal insulation and heat preservation pipe layer is covered with an anti-leakage pipe layer, the inner wall of the anti-leakage pipe layer is covered with a third thermal insulation and heat preservation pipe layer, and the outer wall of the second thermal insulation and heat preservation pipe layer is covered with an abrasion-resistant layer.The novel thermal insulation and heat preservation hose can not only conduct heat preservation and thermal insulation on high-temperature and low-temperature media, but also bear pressure. The three-layer thermal insulation and heat preservation structure makes the thermal insulation effect excellent, the service life of the hose is prolonged through the abrasion-resistant layer made of anti-agingand fire-proof materials, and the host can also be flatly wound.

Description

technical field [0001] The invention relates to the technical field of thermal insulation pipes, in particular to a novel thermal insulation hose and a production method thereof. Background technique [0002] Thermal insulation materials are usually light, loose, porous, and low thermal conductivity materials. Because of its unique thermal insulation, heat insulation, sound insulation, and fireproof properties, it is widely used in industry, national defense, aerospace, atomic energy development, and construction. Especially with the outbreak of the world energy crisis in 1973, energy conservation has been increasingly valued by governments around the world. , energy saving has been praised by the international community as the "fifth conventional energy source", which ranks among the five conventional energy sources along with oil, coal, natural gas and electricity. One of the most important measures for energy saving is the development and application of thermal insulation...

AI Technical Summary

Problems solved by technology

[0004] 1. High thermal conductivity and poor thermal insulation effect. In many occasions that have high requirements for thermal insulation, it cannot even meet the thermal insulation design requirements; due to poor thermal insulation performance, a large package thickness is required, which is not conducive to energy-saving thermal insulation construction operations. The cost of construction work is increased; the thermal insulation performance decays rapidly, resulting in an increase in the heat loss of equipment and pipelines year by year, and an increase in operating costs; basically it needs to be replaced every 3 to 4 years, resulting in high maintenance costs and repeated investment. high

[0005] 2. The hydrophobicity of many materials is low, which leads to moisture in the insulation layer, and even causes corrosion under the insulation layer in severe cases, resulting in thinning of the wall thickness and causing safety hazards in pipelines or equipment

[0006] 3. The structure of the material is unstable. After a period of use, it will appear uneven up and down due to the action of gravity. The thickness of the lower part is sometimes twice that of the upper part, resulting in uneven thermal insulation performance and increased heat loss.

[0007] Traditional materials cannot be used effectively and lightly on existing hoses, so the purpose of this invention is to achieve heat preservation and heat insulation on hoses to meet the needs of low-temperature medium and high-temperature transmission

Images