Exploring the phenomenon of external anti-corrosion bulging of high temperature pre insulated pipe and its solutions
In complex industrial environments, anti-corrosion protection of pipeline systems is crucial, as it relates to the service life, operational efficiency, and safety of pipelines. High temperature pre insulated pipes, as a common form of pipeline structure, require particularly critical external anti-corrosion treatment. However, in practical applications, sometimes there may be bulging of the external anti-corrosion layer. This article will delve into the phenomenon of external anti-corrosion bulging in steel sleeve steel pipe fittings and propose corresponding solutions.
Analysis of the causes
The high temperature pre insulated pipes with steel sleeves often uses heat shrink tape winding anti-corrosion technology. Heat shrink tape materials have excellent corrosion resistance, insulation, and mechanical strength, but their material properties may change under specific conditions, such as prolonged exposure to strong sunlight.
Solution:
1. Due to the characteristic of heat shrink tapes being sensitive to direct sunlight, sun protection measures should be taken promptly after construction is completed. This includes covering the pipeline with sunshade nets, tarpaulins, or specialized sun shields to reduce direct UV radiation. At the same time, in the design of pipeline layout, it is also advisable to avoid exposing the pipeline directly to sunlight and reduce the duration of light exposure.
2. During the construction process, it is necessary to strictly follow the operating procedures to ensure that the heating temperature and winding tightness of the heat shrink tape are controlled within a reasonable range. Strengthen the training of construction personnel, improve their professional skills and sense of responsibility, and reduce quality problems caused by human factors.
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