CN202454307U - Longitudinal watertight degaussing cable - Google Patents

Abstract

The utility model is a longitudinal water-sealed degaussing cable, which is characterized in that it is divided into three-core cables arranged in a zigzag shape or three-core cables arranged in parallel in a zigzag shape. Among the three-core cables arranged in a zigzag shape, a The wire and cable stranding machine twists multiple tinned copper wires as conductors, and the gaps between multiple tinned copper wires are filled with water-blocking glue. The outer periphery of the first layer of wrapped water blocking tape is an insulating layer of ethylene-propylene rubber insulating material, the outer periphery of the insulating layer is the second layer of wrapped water blocking tape, and the outer periphery of the second layer of wrapped water blocking tape is a sheath, arranged in the shape of a character The gap between the three-core cables is water-blocking glue. Advantages: The multi-core structure saves the trouble of traditional single-core structure multi-turn winding and laying, and is convenient for installation and laying; it can be used to compensate the induction magnetic field of the ship itself, with little interference from itself, regular magnetic field generation, easy control, and good degaussing effect; It has low-smoke, halogen-free and low-toxicity performance.

Description

Longitudinal water-sealed degaussing cable

technical field

The utility model relates to a longitudinal water-sealed degaussing cable; the cable straddles two fields of the longitudinal watertight cable and the degaussing cable.

Background technique

The traditional degaussing cables are based on Russian technology. The conductor is extruded and insulated and then a sheath is added. It can also be simply regarded as a single power cable with a sheath. At present, the ship degaussing cables of domestic manufacturers mostly adopt this structure. This type of degaussing cable is mainly used in degaussing stations, degaussing ships, etc. for temporary degaussing. The utility model is specially used in the submarine degaussing system to eliminate the induced magnetic field, and has the longitudinal watertight performance of the cable, and there is no such product in the market at present.

Contents of the invention

The utility model proposes a longitudinal water-sealed degaussing cable, which is developed with reference to GJB 1916-1994 "General Specifications for Low-Smoke Cables and Cords for Ships" and according to the needs of users and the characteristics of the product itself. It must not only have the function of degaussing cables, but also meet the longitudinal water sealing performance. The cable prepared by this preparation process can be used normally in the range of -40°C to +90°C, and the longitudinal water pressure resistance is 6.5MPa, meeting the requirements of low smoke, halogen-free and low toxicity. It is suitable for fixedly laying the degaussing winding inside the ship, and the current can be changed according to the magnetic latitude, course and swing of the ship, so as to compensate the magnetic field induced by the ship.

The technical solution of the utility model: it is characterized in that the three-core cables arranged in a zigzag shape or the three-core cables arranged in parallel in a zigzag shape, wherein the three-core cables arranged in a zigzag shape are twisted with wires and cables in the center of each core cable. The wire machine twists a plurality of tinned copper wires as the conductor, and the gap between the tinned copper wires is water-blocking glue. The outer periphery of the conductor is the first layer of wrapping water-blocking tape, and the first layer of wrapping resistance The periphery of the hose is an insulating layer of ethylene-propylene rubber insulating material, and the periphery of the insulating layer is the second layer of wrapping water-blocking tape, and the periphery of the second layer of wrapping water-blocking tape is a sheath. The gap is water-blocking glue.

In its preparation process, the conductor of each core cable is to use a wire and cable stranding machine to twist multiple tinned copper wires as conductors. At the same time, the water-blocking glue is filled into multiple tinned copper wires through a square glue injection mold made of Bakelite. The gap between the tin-copper wires, and then wrap the first layer of water-blocking tape outside the conductor in time; use the extrusion machine equipment to extrude the ethylene-propylene rubber insulating material around the first layer of water-blocking tape, And cross-linked by electron accelerator irradiation as an insulating layer; the second layer of wrapping water blocking tape is wrapped around the insulating layer; the outer periphery of the second layer of wrapping water blocking tape is extruded by an extruder Smoke-free halogen flame-retardant polyolefin material, and cross-linked by electron accelerator radiation as the sheath layer. the

The utility model has the following characteristics: 1) Water-blocking conductors with large cross-sections: the traditional watertight cables generally have small conductor cross-sections, ^small gaps, and easy water-blocking and filling. The glue injection process fills the gaps between the stranded conductors, so that seawater will not seep along the conductors under a water pressure of 6.5MPa; 2) Longitudinal water sealing performance: the cable can withstand a water pressure of 6.5MPa, and can be submerged in a water depth of 650m 3) Water absorption resistance: the sheath material has good water absorption resistance, and the cable can work in seawater; 4) Good degaussing effect: after laying and installing, the cable has a similar solenoid structure, and the magnetic field is regular and easy to control; 5) Environmental adaptability: the cable can work in seawater for a long time; 6) Low-smoke, halogen-free and low-toxicity: the cable is made of low-smoke, halogen-free and low-toxicity materials, which hardly produce toxic gas and dense smoke when a fire occurs; 7) Mutual interference Small: There is no twisting between the three cores, and the interference between the cores is very small when the cable is degaussing.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the structure of three-core cables arranged in the shape of "pin".

Accompanying drawing 2 is a schematic structural diagram of three-core cables arranged in parallel in a straight line.

In the figure, 1 is the conductor, 2 is the water blocking glue, 3 is the insulating layer, 4 is the wrapping water blocking tape, and 5 is the sheath layer.

Detailed ways

Comparing with accompanying drawing 1, its structure is the three-core cable that is arranged in the shape of a character, and the central part of each core cable twists a plurality of tinned copper wires with a wire and cable stranding machine as conductor 1, and the connection between the plurality of tinned copper wires Inside the gap is water-blocking glue 2, on the periphery of conductor 1 is the first layer of wrapping water-blocking tape 4, the periphery of the first layer of wrapping water-blocking tape 4 is an insulating layer 3 of ethylene-propylene rubber insulating material, and the insulating layer 3 The periphery is the second layer of wrapping water-blocking tape 4, the periphery of the second layer of wrapping water-blocking tape 4 is sheath 5, and the gap between the three-core cables arranged in the shape of a character is water-blocking glue 2. The preparation process, the conductor 1 of each core cable is to use a wire and cable stranding machine to twist a plurality of tinned copper wires as the conductor 1, and at the same time to fill the water blocking glue 2 between the tinned copper wires through the mold. gap, and then wrap the first layer of wrapping water blocking tape 4 outside the conductor 1 in time; the outer periphery of the first layer of wrapping water blocking tape 4 uses extrusion equipment to extrude the ethylene-propylene rubber insulating material, and through the electronic Accelerator radiation cross-linking as insulating layer 3; wrapping the second layer of water blocking tape 4 around the outside of insulating layer 3; extruding the outer periphery of the second layer of wrapping water blocking tape 4 with an extruder A low-smoke, halogen-free, flame-retardant polyolefin material is used as the sheath layer 5 and cross-linked by electron accelerator radiation. the

Comparing with accompanying drawing 2, its structure is a three-core cable arranged in parallel in a straight line. The center of each core cable uses a wire and cable stranding machine to twist a plurality of tinned copper wires as the conductor 1, and the first layer is wound outside the conductor 1. Wrapped water-blocking tape 4; the first layer of wrapping water-blocking tape 4 is extruded with an extruder to extrude ethylene-propylene rubber insulating material, and cross-linked by electron accelerator irradiation as insulating layer 3; The outside of the insulating layer 3 is surrounded by the second layer of wrapping water blocking tape 4; the periphery of the second layer of wrapping water blocking tape 4 is extruded with an extruder to extrude low-smoke, halogen-free and flame-retardant polyolefin materials, and after Electron accelerator radiation cross-linking is used as the sheath layer 5 . The preparation process is characterized in that the three-core cables are arranged in parallel in a line, and the conductor 1 of each core cable is twisted with a wire and cable stranding machine to twist a plurality of tinned copper wires as the conductor 1, and the first layer is wound outside the conductor 1 in time. Wrapped water blocking tape 4; the first layer of wrapping water blocking tape 4 is surrounded by extruder equipment to extrude ethylene-propylene rubber insulating material through extrusion technology, and is cross-linked by electron accelerator irradiation as insulating layer 3; The outer layer of layer 3 is surrounded by the second layer of wrapped water-blocking tape 4; the periphery of the second layer of wrapped water-blocking tape 4 is extruded with an extruder to extrude low-smoke, halogen-free, flame-retardant polyolefin material, and passed through electronic Accelerator radiation cross-linking is used as the sheath layer 5 . the

Claims (2)

1. longitudinally water blocking degaussing cable; The three-core cable that it is characterized in that being the three-core cable of isosceles triangle arrangement or be the in-line parallel arranged; Wherein be in the three-core cable that isosceles triangle arranges central authorities at every core cable with the stranded many tinned copper wires of electric wire cable strand machine as conductor, be the glue that blocks water in the space between many tinned copper wires, be the wrapped waterstop of ground floor in the periphery of conductor; The periphery of the wrapped waterstop of ground floor is the insulating barrier of ethylene propylene rubber insulation material; The periphery of insulating barrier is the wrapped waterstop of the second layer, and the periphery of the wrapped waterstop of the second layer is a sheath, and the space between the three-core cable that isosceles triangle is arranged is the glue that blocks water.

2. longitudinally water blocking degaussing cable according to claim 1; The central authorities that it is characterized in that being every core cable in the three-core cable of in-line parallel arranged with the stranded many tinned copper wires of electric wire cable strand machine as conductor; Between many stranded tinned copper wires of conductor is the glue that blocks water, and is the wrapped waterstop of ground floor in the conductor outside; The wrapped waterstop of ground floor periphery is that the ethylene propylene rubber insulation material that uses extruder equipment to adopt squash type technology to extrude is insulating barrier; In the periphery of insulating barrier is the wrapped waterstop of the second layer; The periphery of the wrapped waterstop of the second layer is to adopt squash type technology to extrude low-smoke halide-free fireproof composite polyolefine material with extruder, and crosslinked as restrictive coating through electron accelerator irradiation.

Images