A step-by-step installation and construction method of electric heat tracing for chemical pipelines

Abstract

The invention discloses an electric heat tracing stepwise installation and construction method for a chemical pipeline. The method comprises the step I of polishing the outside surface of the chemicalpipeline to be heat-traced smoothly, and purging the outside surface; the step II of determining the working temperature of a heating belt, and materials and thickness of a thermal insulation layer,measuring the length of the chemical pipeline to be heat-traced, and calculating the length of the required heating belt; the step III of laying the heating belt; the step IV of conducting power-on debugging, and performing start-stop control over the electric heating belt; and the step V of wrapping the thermal insulation layer, and finishing the installation of the electric heating belt.

Description

technical field [0001] The invention belongs to the technical field of heat tracing and heat preservation construction, and in particular relates to a step-by-step installation and construction method of electric heat tracing for chemical pipelines. Background technique [0002] With the continuous progress of society, the field of chemistry has followed the pace of the times in recent years. The production and utilization of chemicals have brought huge economic and social benefits to society. Chemical products exist in every corner of people's lives. However, due to the particularity of chemical substances, chemical pipelines often need to be heated to a certain temperature to avoid affecting the physical and chemical reactions of chemical substances in the pipeline; or the ambient temperature of the pipeline is extremely low, especially in winter in the north, it is necessary to heat the pipeline to ensure The transported substance can be transported normally without being...

AI Technical Summary

Problems solved by technology

However, because the heat dissipation of steam is not easy to control, its heat preservation efficiency is always at a low level.

Moreover, the pipelines that require heat tracing in the chemical industry are generally instrument pipelines, process pipelines and chemical pipelines. These pipelines are relatively complicated, and it is very inconvenient to lay steam heat tracing pipelines.

In addition, when the steam heating pipes that have been laid are running in winter, the phenomenon of "running, popping, dripping, and leaking" often occurs. Every winter, the maintenance department has to spend a lot of manpower and material resources on the insulation of pipelines and equipment to ensure the safety of the pipes in winter. safe operation

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