Production process of long-stator cable for magnetic levitation rail transient

A technology of maglev track and production process, applied in cable/conductor manufacturing, conductor/cable insulation, circuit and other directions, can solve the problems of high energy consumption, improving the ground potential of the cable shielding layer, and low production efficiency of wire drawing conductors, etc. Achieve the effect of increasing the production speed, reducing the drawing process, and drawing energy.

CN110570992AActive Publication Date: 2019-12-13HUNAN XIANGNENG ELECTRIC WORKS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-12-13

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Abstract

The invention provides a production process of a long-stator cable for magnetic levitation rail transit. The production process comprises the steps of S1, drawing a central line and single-core conductors; S2, rolling and stranding the center line and the single-core conductors; S3, drawing Z-shaped molded line single wires or S-shaped molded line single wires; S4, integrally stranding the conductor; S5, annealing the conductor; S5, co-extruding a conductor shielding layer, an insulating layer and an insulating shielding layer outside the conductor; and S6, extruding a sheath outside the insulation shielding layer. According to the invention, the production speed is improved, the energy consumption is saved, and the filling coefficient of the conductor is ensured to reach 0.95 or above.
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Description

technical field

[0001] The invention relates to a production process of a long stator cable for maglev rail transit, and belongs to the field of cable production. Background technique

[0002] At present, there are three types of conductors designed for long stator cables for maglev rail transit:

[0003] 1. The core wire is twisted with fan-shaped aluminum wire, and the outer layer is twisted with aluminum wire.

[0004] 2. The core wire is twisted with 7 round aluminum wires, and the outer layer is twisted with aluminum-shaped wires.

[0005] 3. The core wire is twisted with fan-shaped aluminum wire, and the outer layer is twisted with trapezoidal wire.

[0006] French Nexans Cable and Shanghai Electric Cable Research Institute adopt the first and second structures, and Far East Cable Co., Ltd. adopts the third structure.

[0007] The currently known single-core or multi-core aluminum conductors or aluminum alloy conductors are usually twisted and pressed into fan-shape...

Examples

Embodiment Construction

[0056] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. For the convenience of description, if the words "up", "down", "left" and "right" appear in the following, it only means that the directions of up, down, left and right are consistent with the drawings themselves, and do not limit the structure.

[0057] A production process for long stator cables for maglev rail transit, such as figure 1 As shown, wherein the long stator power cable for maglev extends axially as a whole, and viewed on any section perpendicular to the length direction of the long stator power cable for maglev, the cable includes a conductor 10 at the center, and the conductor 10 A conductor shielding layer 11, an insulating layer 12, an insulating shielding layer 13 and a sheath 1...