An insulating metal pipe

Abstract

The invention discloses a heat preservation type metal pipe, comprising a main body, the main body is composed of an outer layer body, an inner layer body and two receiving bodies, the two receiving bodies are symmetrically distributed on both sides of the inner layer body, and the two ends of the receiving body are respectively It is integrally welded with the inner wall of the outer layer and the outer wall of the inner layer, so that the outer layer body, the inner layer body and the two receiving bodies form a stable overall structure. In order to adjust the pressure by changing the division of the inner chamber of the pressure control chamber to adapt to the fluid When the pressure in the chamber is not the same as the heat preservation of the pipeline, the outer body, the inner body and the two receiving bodies form two symmetrical pressure control chambers with a C-shaped cross section. The arc pressure control chamber is arranged in the pressure control chamber. The spacer in the pressure control chamber is dynamically divided into an outer chamber and an inner chamber by the partition plate, and a fluid chamber is formed in the inner body. The heat-insulating metal pipe makes the pressure and temperature of the inner chamber and the fluid chamber almost the same, thereby reducing the heat exchange between the fluid chamber and the external environment, and achieving better heat preservation effect.

Description

technical field [0001] The invention belongs to the technical field of metal pipes, and in particular relates to a thermal insulation type metal pipe. Background technique [0002] Metal pipes are widely used, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial installations. The main lines of metal pipelines for water supply, drainage, heating and gas supply and long-distance oil and gas transmission metal pipelines in cities are mostly laid underground, while metal pipelines in factories are mostly laid on the ground for easy operation and maintenance. [0003] According to the automatic processing system for making thermal insulation metal pipeline insulation layer disclosed in Chinese patent CN113146925A, for steam pipelines, high temperature pipelines, low temperature pipelines and pipelines with anti-scalding and anti-freezing requirements, it i...

AI Technical Summary

Problems solved by technology

However, the thermal insulation effect achieved by this thermal insulation method is very limited, and with the prolongation of use time, the thermal insulation material is gradually decomposed or damaged, and the thermal insulation effect will be greatly reduced

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