A large-section high-temperature-resistant mobile flexible cable for high-temperature equipment and its preparation process

Abstract

The invention discloses a large-section high-temperature-resistant mobile flexible cable for high-temperature equipment and a preparation process thereof, wherein the preparation process includes: S1: stranded conductor; S2: stranded cable core: the conductor is arranged around a central cooling pipe to form the cable. The first conductor layer; the conductors and cooling pipes are arranged at intervals outside the first conductor layer to form a cooling layer. The contact area between the cable cooling pipe and the conductor of the present invention is large, and the cooling efficiency is high. The three-layer basalt material of the basalt wrapping layer, the basalt braided layer and the basalt sheath not only ensures the high temperature resistance of the cable, but also reduces the cable diameter. Relying on the low friction between the conductor and the basalt cladding and the low wire diameter of the cable to ensure that the cable can slide relatively when it is bent, it can move and bend after laying, there is no flammable material such as rubber in the cable, and it can be heated at 600°C without sintering Working in the environment, no pollution when used, less decline in mechanical properties, and long service life at high temperatures.

Description

technical field [0001] The invention relates to cables, in particular to a large-section high-temperature-resistant mobile flexible cable for high-temperature equipment and a preparation process thereof. Background technique [0002] The working environment of the cable is very changeable. In the actual work on site, it is often encountered that the cable is arranged in a high temperature area, such as a high temperature area with an ambient temperature above 250°C. In such a high-temperature working environment, ordinary cables are damaged or have performance degradation due to the inability to withstand the working temperature, resulting in signal or power transmission failures, causing fault tripping, outage, or even damage to the main equipment, which is critical for the safe use of the main equipment There is a great danger. In normal operation, the high-temperature area cannot be entered, which brings great difficulty to the maintenance work. Above-mentioned situatio...

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Problems solved by technology

PTFE and composite materials mainly adopt the sintering process after wrapping. This sintering process has the disadvantages of large pollution and environmental protection. It will release toxic and harmful gases, which is harmful to the health of employees.

[0004] Another high temperature resistant cable adopts a metal sheath, and the cable is fixed and cannot be bent, which is very inconvenient to use

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