Heating cable and manufacturing method thereof

• Main Authors: ZOU RUIJUN, HUANG WEILI, ZHANG CHENNAN, SHENG CHANGFEI, ZHANG RUNHAO, ZHANG QING, ZHANG FUZHEN
• Format: Patent
• Language: Chinese; English
• Published: 21.06.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INSULATORS; MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention relates to the technical field of cables, in particular to a heating cable and a manufacturing method thereof.The heating cable comprises a metal outer sheath, the metal outer sheath is filled with insulating filler, a plurality of tubular conductors are embedded in the insulating filler and evenly distributed in the circumferential direction, and a metal inner sleeve is arranged in the middle of the insulating filler; a plurality of temperature measuring optical fibers are arranged in the metal inner sleeve; a valve body is arranged at a port of the tubular conductor, the valve body is used for being connected with a pump body, and the control terminal is electrically connected with the temperature measuring optical fiber. Aiming at the technical problem that a traditional heating cable has defects, the temperature distribution condition of all points along the cable can be measured, and a tubular conductor is adopted, so that an electric field is uniformly distributed, the skin effect is reduc