Chemical plant wastewater pipeline electric heat tracing device
Information source: Anhui Cable Group Views: 2279 Release time: 2017-05-15
Wastewater pipeline electric heat tracing device is a kind of antifreeze and heat insulation system with high heating efficiency, simple structure and convenient installation (see the figure below). Compared with the traditional antifreeze insulation method, the cost can be saved by more than 30%, and the effect is more obvious. The heating element of this electric heat tracing device is a heat tracing band , which can be applied to places with various explosion-proof requirements, and is safe and energy-saving.
The waste water pipeline of a large-scale chemical plant in Shandong was shut down last winter due to freezing conditions. The original plan was to consider a passive insulation method, that is, to increase insulation cotton and external protection outside the pipeline. Because the local extreme temperature will be as low as minus 23 ° C, even if passive insulation is used, the icing of the pipeline cannot be effectively solved. Later, it was decided to adopt an electrical heat tracing device for waste water pipelines produced by the Wanzhou Cable Group to solve the icing phenomenon of the pipelines with an active thermal insulation method. The device can prevent the medium in the pipeline from freezing in advance, and can quickly defrost after the medium is frozen.
The chemical plant's waste water pipeline electric heat tracing device is mainly composed of a heating cable, a distribution control box, an intermediate junction box, a tail end, and fixing tape. The diameter of the pipe is 48MM, the distance is long, and the number of branch pipes is small. It is more suitable to choose a constant power heating cable. The single heating loop has a long operating distance, high heat generation, and precise temperature control. Only a single straight laying is required, and it is installed at a 45-degree angle below the pipeline (see above). Adopting this scheme can save the initial investment and later operating costs, so that the winter wastewater pipeline will no longer freeze.
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