Pipeline system with vacuum heat preservation function

Abstract

The invention provides a pipeline system with a vacuum heat preservation function. The pipeline system comprises a conveying pipeline (20) sleeved with a plurality of straight pipe heat preservation units and bend heat preservation units which are connected in series. Each straight pipe heat preservation unit comprises an inner straight pipe body (1) and an outer straight pipe body (2) wrapping a straight section of the conveying pipeline (20). Each bend heat-preservation unit comprises an inner bend pipe body (5) and an outer bend pipe body (6) wrapping a bend section of the conveying pipeline (20). The pipeline system with the vacuum heat preservation function is simple in structure and convenient to install, and can adapt to pipeline layout in various terrains through the matching of the straight pipe units and the bend units. A vacuum heat isolation layer between every two adjacent pipeline units can well carry out heat preservation and heat isolation on liquid in the inner pipes. Each vacuum heat isolation layer is an independent structure, the overall structure can not be damaged if one vacuum heat isolation layer is damaged, the application range is wide, and the pipeline system with the vacuum heat preservation function has great popularization value.

Description

technical field

[0001] The invention relates to the technical field of fluid transportation, in particular to a pipeline system with vacuum insulation. Background technique

[0002] Due to the rapid development of China's economy, the consumption of energy is increasing at an alarming rate. The thermal insulation project of pipelines is an important measure to save energy, but it has not received due attention for a long time. According to preliminary estimates, the heat loss of China's thermal pipelines is about Accounting for 7.5-8% of the coal consumption of the entire heating system, China's current energy utilization efficiency is about 29%, and the waste of resources is serious. How to reduce the loss of heat and improve the effective utilization of heat has become the key to energy conservation and emission reduction.

[0003] The use of steam and hot water in the production of industrial enterprises and the use of central heating in cities and towns all need to invol...

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