High temperature-resistant heat transfer pipe

Abstract

The invention discloses a high temperature-resistant heat transfer pipe which comprises a pipe body. The pipe body is provided with at least two detection windows which are provided with a temperaturesensor and a standby cap respectively, the lower end of the temperature sensor is made into a bolt structure and fixed to the corresponding detection window through a gasket, the outer side of the pipe body is wrapped with an aerogel heat insulation coating, the outer side of the aerogel heat insulation coating is wrapped with polyurethane foam, and the outer side of the polyurethane foam is wrapped with a polyethylene sheath. The high temperature-resistant heat transfer pipe has the advantages that the pipe is provided with the temperature sensor, so that the real-time temperature in the pipe can be monitored at any time; when overhaul is required, maintenance can be performed in the window after the opening of the standby cap or the starting of the temperature sensor at any time, thereby being very convenient, and the pipe has effects of heat insulation and protection.

Description

technical field [0001] The invention relates to the technical field of mechanical pipelines, in particular to a high temperature resistant heat transfer pipeline. Background technique [0002] Conventional heating pipes are generally composed of steel pipes, insulation layers and protective layers. The insulation layer is generally made of polyurethane foam, mainly because of its relatively low production cost, light weight, and good thermal insulation performance. The protective layer generally uses polyethylene as the sheath, mainly because of its outstanding pressure resistance, durability and waterproof performance; the main function of the insulation layer is to reduce the occurrence of heat exchange due to heat exchange in the heat supply pipeline and its accessories, equipment, etc. heat loss to save fuel and ensure the quality of heat supply. However, due to the limitation of the temperature resistance of polyurethane foam, when the temperature reaches 120°C, aging ...

AI Technical Summary

Problems solved by technology

However, due to the limitation of the temperature resistance of polyurethane foam, when the temperature reaches 120°C, aging will occur, so that the thermal insulation effect will be lost. Therefore, in the heating system, especially the primary pipe network, water supply The temperature can only be controlled at 110°C or even lower, which results in a small heating range and low heating efficiency of the entire heating system

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