Tandem type constant power ribbon heater processing technology

Abstract

The invention discloses a tandem type constant power ribbon heater processing technology. The technology includes the following steps: 1. wrapping a glass fiber braid ply on the outside of an alloy heating core, arranging one layer of inorganic lubrication powder, extruding one layer of busbar insulating layer, coating a silicone oil, cooling the alloy heating core in the air and immersing the alloy heating core in water for performing cooling, scraping the silicone oil on the surface of the busbar insulating layer and recycling the silicone oil, and obtaining the constant power heating busbar; 2. coating one layer of heat conductive silica gel on the surface of the constant power heating busbar, such that the silica gel fills the gaps between each constant power heating busbar in a heating busbar group, curing the heat conductive silica gel which is filled in the heating busbar group; 3. adopting an extruding pipe extrusion die to extrude one layer of total insulating layer on the outside of the heating busbar which is processed by the step 2, then coating one layer silica oil on the outside of the total insulating layer, cooling the total insulating layer in the air and immersing the total insulating layer in water for performing cooling, taking the total insulating layer from a cooling water tank, scraping the silica oil on the surface of the total insulating layer and recycling the silica oil.

Description

technical field [0001] The invention relates to the technical field of constant-power electric heating belt processing, in particular to a series-type constant-power electric heating belt processing technology. Background technique [0002] Electric heating cables are a new type of high-tech product. Since they entered the application field in the 1970s, they can be widely used in the transportation of liquid objects in pipelines and the antifreeze and heat preservation of tanks, maintaining process temperature, heating roads, and ramps. , Crosswalks, eaves and floors, etc. When the electric heating cable is working, when heating a certain system, if the heat transferred by the electric heating cable to the system per unit time is equal to the heat transferred from the system to the external environment, the temperature of the system remains unchanged. The highest temperature that the system can reach is called the highest maintenance temperature. [0003] The power output...

AI Technical Summary

Problems solved by technology

The metal alloy wire cores of series electric heating cables have the same resistance value and the same current passing through, so the whole electric heating cable heats up evenly from the beginning to the end, and its output power is constant without being affected by the ambient temperature and pipeline temperature, so it is suitable for long-distance pipelines It can be powered by one power point, and the maximum length can reach 3,000 meters; however, the series type electric heating belt is made according to the length of the pipeline, and cannot be cut and spliced ​​arbitrarily