High-temperature and high-pressure steam boiler hose and preparation method thereof

Abstract

The invention discloses a high-temperature and high-pressure steam boiler hose. The high-temperature and high-pressure steam boiler hose comprises a heat-resistant hose, wherein the outer wall of theheat-resistant hose is wound and wrapped with an aluminum silicate heat-insulation layer; the outer wall of the aluminum silicate heat-insulation layer is wrapped with a weaved protection layer; and the aluminum silicate heat-insulation layer is formed by spirally and closely winding the outer wall of the heat-resistant hose with aluminum silicate wool. The high-temperature and high-pressure steamboiler hose is novel in structure; the aluminum silicate wool is taken as the heat-insulation layer of the boiler hose, a hard-pipe heat-insulation pipeline is replaced, and the outer wall of the heat-resistant hose can be comprehensively wrapped with the aluminum silicate wool, so that a good heat-isolation effect is achieved, the loss of steam heat is reduced, and the energy is saved; the thickness of the heat-insulation layer is greatly reduced, and the prepared boiler hose is lighter; and compared with foam heat-insulation cotton, the aluminum silicate wool is not liable to be aged, so that the boiler hose has a longer practical life under a high-temperature and high-pressure working environment.

Description

technical field [0001] The invention relates to the technical field of boiler accessories, in particular to a high-temperature and high-pressure steam boiler hose and a preparation method thereof. Background technique [0002] Boiler is a kind of energy conversion equipment. The energy input to the boiler is in the form of chemical energy in fuel, electric energy, heat energy of high-temperature flue gas, etc. After conversion by the boiler, it outputs steam, high-temperature water or organic heat carrier with certain heat energy. . A steam boiler refers to an industrial boiler that heats water to a certain temperature and produces high-temperature steam. Its working principle is that the heat released by the heating equipment (burner) is first absorbed by the water-cooled wall through radiation heat transfer, and the water in the water-cooled wall is boiled and vaporized, and a large amount of steam is generated and enters the steam drum for steam-water separation (except ...

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Problems solved by technology

[0003] The insulation pipe is an essential part of the steam boiler. In order to ensure the smooth transportation of high-temperature steam, the insulation pipe needs to have outstanding performance requirements. Most of the current insulation pipes use foam insulation cotton as the insulation medium of the insulation pipe. This insulation pipe is very thick. ; The foam insulation cotton is easy to age and has a short service life, and this kind of insulation pipe is usually a hard pipe, and the foam insulation cotton is not easy to wrap at the corner of the pipe

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