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A nuclear radiation-resistant mobile cable for cranes

A nuclear radiation-resistant and mobile cable technology, which is applied in the field of cables, can solve the problems that easily affect the erection of construction supports, the large footprint of flat cables, and affect the safety of use, so as to achieve a small footprint, reduce the impact of erection, and alleviate wear effect

Active Publication Date: 2022-03-08
ANHUI DUJIANG CABLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the round cable is used to connect the bridge frame and the lifting trolley, it is easy to be entangled, which affects the safety of use. Therefore, in the prior art, flat cables are generally used as the dragging cables of the crane. The flat cable occupies a large area, which is easy to affect the erection of the construction support; and the friction surface is large, and it is easy to wear after long-term use, so it needs to be improved

Method used

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  • A nuclear radiation-resistant mobile cable for cranes
  • A nuclear radiation-resistant mobile cable for cranes
  • A nuclear radiation-resistant mobile cable for cranes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like figure 1 The shown mobile cable with resistance to nuclear radiation for cranes includes a cable core, an insulating layer 4 wrapped around the cable core, an armoring layer 2 arranged on the outside of the insulating layer 4, and a cable wrapped on the outside of the armoring layer 2. The sheath layer 1, the cable core includes a main wire core 5 and a ground wire core 9;

[0029] The cross-sections of the armoring layer 2 and the sheathing layer 1 are both oval, and the sheathing layer 1 is made of irradiated cross-linked polyethylene material. The wear-resistant groove 12 extends in the length direction, and the groove surface in the wear-resistant groove 12 is sprayed with wear-resistant paint; the armor layer 2 is a tube-sleeve-shaped structure woven from copper tape;

[0030] The cross-section of the insulating layer 4 is flat, and the two sides thereof are convex arcs, the insulating layer 4 is an irradiated cross-linked polyethylene insulating layer; Ther...

Embodiment 2

[0035] The difference between this embodiment and Embodiment 1 is:

[0036] In this embodiment, as image 3 As shown, there are a row of first protective sleeves 6 attached to each other in the cable core, and two main wire cores 5 are arranged inside each first protective sleeve 6, and each adjacent two first protective sleeves 6 face each other. The side first arc grooves 61 are pieced together to form an oval cavity 11 . The arrangement of more main cores 5 can be realized.

[0037] In this embodiment, as image 3 As shown, there are two wear-resistant grooves 12 extending along the length direction of the outer surface of the sheath layer 1 , and the two wear-resistant grooves 12 are point-symmetrical about the center of the section of the cable.

[0038] Others are the same as in Example 1.

Embodiment 3

[0040] The difference between this embodiment and Embodiment 1 is:

[0041] In this embodiment, as Figure 4 and Figure 5 As shown, there are two rows of first protective sleeves 6 attached one by one in the cable core, and the bottom of the first protective sleeve 6 of the upper row and the top of the first protective sleeve 6 of the next row are attached together, There is a main wire core 5 on the inner side of each first protective sleeve 6 , and the first arc grooves 61 on the opposite sides of each adjacent two first protective sleeves 6 are pieced together into an oval cavity 11 . The second arc grooves 62 on the opposite sides of the first protective sleeve 6 are pieced together to form an oval cavity 11 . The arrangement of more main cores 5 can be realized, and the number of cavities 11 can be increased, so that the flexibility of the cable can be improved.

[0042] In this embodiment, as Figure 4 As shown, there are four wear-resistant grooves 12 extending alo...

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Abstract

The invention discloses a nuclear radiation-resistant mobile cable for a crane, which belongs to the technical field of cables and includes a cable core, an insulating layer, an armor layer and a sheath layer. There is a wear-resistant groove on the side, the sheath layer is an outer sheath of irradiated cross-linked polyethylene, and the space between the armor layer and the insulating layer is filled with cross-linked polytetrafluoroethylene materials, flame-retardant materials and elastic materials; the cable core is Flat, with a first protective cover and a second protective layer inside, the cross-section of the first protective cover is square, the inner side of the first protective cover is provided with a main wire core, and the first protective cover is provided with a first arc-shaped groove and a second protective layer. The two arc-shaped grooves form a cavity between two adjacent opposite sides of the first protective cover. The cross section of the second protective layer is elliptical, and a ground wire core is arranged in the second protective layer. The invention has good performances of nuclear radiation resistance, flame retardancy and stamping resistance, and good flexibility, can prevent the cables from rolling and entangled with each other when being dragged, and can also alleviate the wear and tear caused by long-term use.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a nuclear radiation-resistant mobile cable for cranes. Background technique [0002] In recent years, the rapid development of domestic nuclear power has attracted great attention from the supporting wire and cable industry. Nuclear power plant cables need to have better radiation resistance to ensure the stability of the operation of nuclear power plants. In the actual working conditions of the nuclear power plant, because the crane moves continuously, the cable needs to be able to be dragged, bent and rubbed at will. The cable used for the crane must be able to withstand the needs of high tensile strength and high wear resistance. When the round cable is used to connect the bridge and the hoisting trolley, it is prone to entanglement, which affects the safety of use. Therefore, in the prior art, the flat cable is generally used as the crane towing cable, but the flat cable is co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/08H01B7/18H01B7/295H01B7/17H01B7/40H01B3/44H01B7/04
CPCH01B7/08H01B7/184H01B7/1805H01B7/1875H01B7/17H01B7/295H01B7/40H01B3/44H01B7/04
Inventor 巫春生徐志敏毕亮亮胡宏生万长东张家文
Owner ANHUI DUJIANG CABLE GROUP
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