Low-smoke halogen-free low-toxicity cable for deck transport ship

Abstract

The utility model discloses a low smoke zero halogen low toxicity cable for deck transport ship relates to the cable technical field, including conductive core, the outer layer of conductive core is coated with zero halogen insulating layer, in the utility model, through the cable, from outside to inside is provided with waterproof layer, flame retardant layer, zero halogen insulating layer and filling layer in proper order, waterproof layer is made by waterproof yarn material, and the flame retardant layer is made by waterproof yarn material. The halogen-free insulating layer is made of a cross-linked polyethylene material, the outer surface of the waterproof layer is provided with a plurality of annular grooves, the annular grooves are filled with water-absorbent resin, permeated water is absorbed and fixed, the waterproof performance of the cable is improved, and the cable has the halogen-free, low-smoke, flame-retardant and waterproof performance and can be used by a deck transport ship; the four conductive cores are arranged on the side edges of the supporting frame and the middle of the supporting frame respectively, the supporting strength of the cable is improved while the conductive cores are fixedly installed, the tensile wires are installed on the waterproof layer and the flame-retardant layer, and the tensile capacity of the cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a low-smoke, halogen-free and low-toxic cable for deck transport ships. Background Art

[0002] A deck ship is a ship without a cargo hold, with all cargoes stacked on the deck. Electricity is one of the main resources for long-distance transport ships. Cable is a device for transmitting electric energy or signals, usually consisting of several or several groups of wires. Cable has the characteristics of internal electricity and external insulation. Marine cable is a wire and cable used for power, lighting, control, and communication transmission on various ships on rivers and seas and offshore or offshore buildings. Since deck transport ships need to sail on the sea, ordinary land cables cannot meet the requirements of marine use.

[0003] In the prior art, for example, Chinese patent CN219534080U discloses a wear-resistant cable for long-distance transport ships, comprising a plurality of copper conductors, each of which is provided with an insulating protective sleeve, the outer sides of the three insulating protective sleeves are provided with the same wrapping filling layer, the outer side of the wrapping filling layer is provided with an anti-interference layer, the outer side of the anti-interference layer is provided with a heat dissipation layer, the outer side of the heat dissipation layer is provided with an anti-stretching layer, the outer side of the anti-stretching layer is provided with an anti-freeze layer, and the outer side of the anti-freeze layer is provided with a wear-resistant and anti-corrosion layer.

[0004] However, in the prior art, due to the special use environment of marine cables, when water enters the ship and affects the cables, the cables do not have good water-blocking properties, causing water to enter the interior of the cables and penetrate into other compartments or enter instruments and equipment along the cables, causing the cables to be scrapped and even affecting the life of the instruments. Utility Model Content

[0005] The utility model aims to solve the problem that the cable in the prior art does not have good water-blocking performance, which may cause water to enter the inside of the cable and cause the entire cable to be scrapped, and proposes a low-smoke, halogen-free and low-toxicity cable for deck transport ships.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a low-smoke, halogen-free, and low-toxicity cable for a deck transport ship, comprising a conductive core, the outer layer of the conductive core is coated with a halogen-free insulating layer, a filling layer is arranged between the conductive core and the halogen-free insulating layer, the inner surface of the halogen-free insulating layer is fixedly connected to a support frame, the conductive core is installed in a space separated by the support frame and the halogen-free insulating layer, the outer layer of the halogen-free insulating layer is coated with a flame retardant layer, and the outer layer of the flame retardant layer is coated with a water-blocking layer.

[0007] Preferably, a tensile wire is fixedly installed between the water-blocking layer and the flame-retardant layer, and a plurality of the tensile wires are wrapped around the outer surface of the flame-retardant layer.

[0008] Preferably, the conductive core comprises an inner core, the outer portion of the inner core is coated with a shielding layer, and the outer portion of the shielding layer is coated with a protective sleeve.

[0009] Preferably, a heat sink is fixedly connected to the outer surface of the water-blocking layer.

[0010] Preferably, an annular groove is formed on the outer surface of the water-blocking layer.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, a water-blocking layer, a flame-retardant layer, a halogen-free insulating layer and a filling layer are sequentially arranged from the outside to the inside of the cable. The water-blocking layer is made of a water-blocking yarn material, and the halogen-free insulating layer is made of a cross-linked polyethylene material. A plurality of annular grooves are provided on the outer surface of the water-blocking layer. The inside of the annular grooves is filled with a water-absorbing resin, which absorbs and fixes the penetrated moisture, thereby improving the waterproof performance of the cable, so that the cable has the properties of halogen-free, low smoke, flame-retardant, waterproof, etc., and can be used on deck transport ships.

[0013] 2. In the utility model, four conductive cores are respectively arranged on the side and the middle of the support frame, and the support frame is arranged inside the halogen-free insulating layer. While the conductive cores are fixed and installed, the supporting strength of the conductive cores is improved, and tensile wires are installed in the water-blocking layer and the flame-retardant layer. The tensile wires are made of glass fiber material, which improves the tensile strength of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a low-smoke, halogen-free and low-toxic cable for a deck transport ship;

[0015] Figure 2 The utility model provides a planar structural schematic diagram of a low-smoke, halogen-free and low-toxic cable for a deck transport ship;

[0016] Figure 3 The utility model provides a schematic diagram of the internal structure of a conductive core of a low-smoke, halogen-free and low-toxic cable for a deck transport ship.

[0017] Legend: 1. Water-blocking layer; 2. Annular groove; 3. Heat sink; 4. Tensile wire; 5. Halogen-free insulation layer; 6. Support frame; 7. Conductive core; 8. Flame-retardant layer; 9. Filling layer; 701. Inner core; 702. Shielding layer; 703. Protective cover. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0020] Example

[0021] like Figure 1-3 As shown, the utility model provides a low-smoke, halogen-free, and low-toxic cable for a deck transport ship, comprising a conductive core 7, the outer layer of the conductive core 7 is coated with a halogen-free insulating layer 5, a filling layer 9 is arranged between the conductive core 7 and the halogen-free insulating layer 5, a support frame 6 is fixedly connected to the inner surface of the halogen-free insulating layer 5, the conductive core 7 is installed in the space separated by the support frame 6 and the halogen-free insulating layer 5, the outer layer of the halogen-free insulating layer 5 is coated with a flame retardant layer 8, and the outer layer of the flame retardant layer 8 is coated with a water-blocking layer 1.

[0022] A tensile wire 4 is fixedly installed between the water-blocking layer 1 and the flame-retardant layer 8, and a plurality of tensile wires 4 are wrapped around the outer surface of the flame-retardant layer 8; the conductive core 7 includes an inner core 701, the outer portion of the inner core 701 is coated with a shielding layer 702, and the outer portion of the shielding layer 702 is coated with a protective sleeve 703; a heat sink 3 is fixedly connected to the outer surface of the water-blocking layer 1; and an annular groove 2 is provided on the outer surface of the water-blocking layer 1.

[0023] The conductive core 7 is composed of an inner core 701 and a shielding layer 702 and a protective sleeve 703 coated on the outside of the inner core 701. The inner core 701 is twisted by multiple tinned copper wires and has good conductive properties. The inner core 701 can be protected by coating the shielding layer 702 and the protective sleeve 703 on the outside of the inner core 701. Four conductive cores 7 are arranged inside the halogen-free insulating layer 5. The four conductive cores 7 are respectively arranged on the side and the middle of the support frame 6. The support frame 6 is provided with multiple conductive cores 7 that are evenly distributed inside the halogen-free insulating layer 5. By installing the conductive core 7 on the support frame 6, the conductive core 7 is fixedly installed while also improving the supporting strength of the cable body. In addition, tensile wires 4 are installed on the water-blocking layer 1 and the flame-retardant layer 8. The tensile wires 4 are made of glass fiber material to improve The tensile strength of the cable is improved by sequentially arranging a water-blocking layer 1, a flame-retardant layer 8, a halogen-free insulating layer 5 and a filling layer 9 from the outside to the inside of the cable. The water-blocking layer 1 is made of a water-blocking yarn material, which has the ability to block and retain water and can prevent water diffusion. The halogen-free insulating layer 5 is made of a cross-linked polyethylene material and has good heat resistance and flame retardancy, which can avoid harmful substances produced by the combustion of halogen-containing insulating materials in the event of a fire and cause human harm. A plurality of annular grooves 2 are provided on the outer surface of the water-blocking layer 1, and the interior of the annular grooves 2 is filled with a water-absorbing resin to absorb and fix the penetrated moisture and improve the waterproof performance of the cable. A plurality of heat sinks 3 are fixedly connected to the outer surface of the water-blocking layer 1 to improve the heat dissipation performance of the cable, so that the cable has halogen-free, low-smoke, flame-retardant, waterproof and other properties and can be used on deck transport ships.

[0024] The use method and working principle of the device: the conductive core 7 includes an inner core 701, a shielding layer 702 and a protective sleeve 703. The inner core 701 is twisted by a plurality of tinned copper wires and has good conductive properties. The outer portion of the inner core 701 is coated with a shielding layer 702 and a protective sleeve 703 to protect the inner core 701. The four conductive cores 7 are respectively arranged on the side and the middle of the support frame 6, and the support frame 6 is arranged inside the halogen-free insulating layer 5. While the conductive core 7 is fixed and installed, the supporting strength of the conductive core 7 is improved. The water-blocking layer 1 and the flame-retardant layer 8 are provided with a tensile wire 4, which is made of glass fiber material to improve the cable. The tensile strength is improved by sequentially arranging a water-blocking layer 1, a flame-retardant layer 8, a halogen-free insulating layer 5 and a filling layer 9 from the outside to the inside of the cable. The water-blocking layer 1 is made of a water-blocking yarn material, which has the ability to block and retain water, and can prevent water diffusion. The halogen-free insulating layer 5 is made of a cross-linked polyethylene material, which has good heat resistance and flame retardancy, and can avoid harmful substances caused by the combustion of halogen-containing insulating materials in the event of a fire, causing harm to the human body. A plurality of annular grooves 2 are provided on the outer surface of the water-blocking layer 1, and the interior of the annular grooves 2 is filled with a water-absorbing resin, which absorbs and fixes the penetrated moisture, thereby improving the waterproof performance of the cable. A plurality of heat sinks 3 are fixedly connected to the outer surface of the water-blocking layer 1, which can improve the heat dissipation performance of the cable.

[0025] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A low-smoke, halogen-free, low-toxicity cable for a deck transport ship, comprising a conductive core (7), characterized in that: The outer layer of the conductive core (7) is coated with a halogen-free insulating layer (5), a filling layer (9) is provided between the conductive core (7) and the halogen-free insulating layer (5), the inner surface of the halogen-free insulating layer (5) is fixedly connected to a support frame (6), the conductive core (7) is installed in a space separated by the support frame (6) and the halogen-free insulating layer (5), the outer layer of the halogen-free insulating layer (5) is coated with a flame retardant layer (8), and the outer layer of the flame retardant layer (8) is coated with a water-blocking layer (1).

2. The low-smoke, zero-halogen, low-toxicity cable for deck transport ships according to claim 1, characterized in that: A tensile wire (4) is fixedly installed between the water-blocking layer (1) and the flame-retardant layer (8), and a plurality of the tensile wires (4) surround the outer surface of the flame-retardant layer (8).

3. The low-smoke, zero-halogen, low-toxicity cable for deck transport ships according to claim 1, characterized in that: The conductive core (7) comprises an inner core (701), the outer portion of the inner core (701) is coated with a shielding layer (702), and the outer portion of the shielding layer (702) is coated with a protective sleeve (703).

4. The low-smoke, zero-halogen, low-toxicity cable for deck transport ships according to claim 1, characterized in that: A heat sink (3) is fixedly connected to the outer surface of the water-blocking layer (1).

5. The low-smoke, zero-halogen, low-toxicity cable for deck transport ships according to claim 1, characterized in that: An annular groove (2) is provided on the outer surface of the water-blocking layer (1).

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