Special heat tracing power cable
A power cable, a special technology, applied in the field of special heat tracing power cables, can solve the problems of poor heat tracing effect, poor performance of heat tracing cables, large difference in local heat exchange temperature, etc., achieve good effect, facilitate tracking and adjustment, and improve utilization rate effect
Active Publication Date: 2022-01-18
ZHEJIANG CHANGTAI POWER CABLE
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- Application Information
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Problems solved by technology
[0003] However, the heating cables in the prior art perform poorly in some environments with relatively low temperatures, and have the defects of poor heat tracing effect and large temperature difference of local heat exchange.
Method used
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Embodiment Construction
[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0028] as attached Figures 1 to 3 As shown, a special heat-tracing power cable includes a cable body 1, and a heat-insulating outer sheath 2 is provided on the outer surface of the cable body 1, and an inner cavity is provided in the heat-insulating outer sheath 2. The cable body 1 is located in the inner cavity, which is provided with a heat pipe 3 attached to the cable body 1, and the heat pipe 3 is provided with a core wire 61 twisted by several copper wires, and the cable body 1 is heat-preserved The adhesive tape 41 is bundled and fixed together with each heat pipe 3, and the thermal insulation adhesive tape 41 is an aluminum foil adhesive tape with a thickness of 0.13 mm;
[0029] A temperature sensor 51 is arranged in the heat-insulating outer sheath 2, and the real-time temperature in the heat-insulating outer sheath 2 is obtained through the temper...
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Abstract
The invention discloses a special heat tracing power cable which comprises a cable body, the cable body is located in an inner cavity of a heat insulation outer sheath, and one or more heat conduction pipes attached to the cable body are arranged in the inner cavity. A temperature sensor is arranged in the heat insulation outer sheath, and the temperature sensor is connected with a temperature controller and a controller which are powered by a power supply through wires; and a plurality of spaced heating belts are arranged in the heat conduction pipe, and the core wire penetrates through the heating belts and connects the heating belts in series. Each heating belt comprises a heating block, a heat conduction layer and a metal frame, and the heat conduction pipe is filled with a high-temperature-resistant filling medium; and a heat preservation layer wrapping the heating tape is further arranged in the heat conduction pipe, and a metal net wraps the outer side of the heat preservation layer. The invention has the following advantages and effects: the heat tracing effect can be improved, and the temperature balance of heat exchange is optimized.
Description
technical field [0001] The invention relates to the technical field of cables, in particular to a special heat tracing power cable. Background technique [0002] Heating cable, also known as electric heating cable, is a cable structure product that uses electricity as energy and uses alloy resistance wire to conduct electricity and heat to achieve heat preservation effect. Electric heating cable is a flat long belt, and heating cable is widely used in industry and construction. It is mainly used in pipelines, valves, pump bodies, storage tanks, reaction towers, instrument boxes, road surfaces, tunnels, floor heating, etc. for antifreeze and heat preservation. It can automatically limit the heating temperature and maintain it. [0003] However, the heat tracing cables in the prior art perform poorly in some environments with relatively low temperatures, and have the defects of poor heat tracing effect and large temperature difference in local heat exchange. Therefore, it is ...
Claims
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IPC IPC(8): H05B3/56H05B3/02H01B7/40H01B9/02
CPCH05B3/56H05B3/02H01B9/024H01B7/40Y02B30/00Y02A30/14
Inventor 张向龙陈晓华徐如雅吴海永龚远芳王建灿柯建富杨中智黄俊鑫陈文达陈林
Owner ZHEJIANG CHANGTAI POWER CABLE