Ultra-long distance ultra-low heat loss pipelines and their steam transport systems and methods

Abstract

This invention discloses an ultra-long-distance, extremely low-heat-loss pipeline and its steam transport system and method. The pipeline is an integrated prefabricated pipeline, comprising, from the inside out, a metal inner tube, an aerogel insulation layer, a calcium silicate layer, and a polyurethane layer. The calcium silicate layer is made of CS120 type calcium silicate with a density of 120 kg / m³ and a water repellency of 99%, produced by Zhejiang Aske Building Materials Technology Co., Ltd. The aerogel insulation layer is made of silica aerogel, formed through an in-situ aerogel layer molding process. The system includes a steam source, pipeline, supply terminal, multiple electromagnetic induction heating devices, an initial temperature sensor, an outlet temperature sensor, an ambient temperature sensor, a flow sensor, and a temperature controller; the temperature controller dynamically adjusts the heating power of the multiple electromagnetic induction heaters.

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