CN203150233U - Intrinsic safety instrument flexible cable for oceanographic engineering - Google Patents

Abstract

This utility model discloses an intrinsic safety instrument flexible cable for oceanographic engineering, which relates to the cable manufacture field and particularly to the intrinsic safety instrument flexible cable for oceanographic engineering. This utility model has three groups of intertwisted cable cores; a main taped coverings, a main shielding layers, an inner protective layer, an armor layer and an outer protective layer successively wrap around the three groups of intertwisted cable cores; an external drainage wire is provided between the main taped covering and a main shielding layer; padding is provided between the three groups of cable cores and the main taped covering; each group of the cable core comprises a tin plated copper intwisted conductor; an insulation layer, an unit shielding layer and an unit taped covering are provided successively on the outside of the tin plated copper intwisted conductor; and a drainage wire is provided between the insulation layer and the unit shielding layer. This utility model has advantages of novel and reasonable structure, advanced technology, good usability, low capacitor, low electrical inductance, safety, strong signal transmission, anti-interference, inflame retarding, low temperature resistance, oil sludge resistance and water blocking.

Description

The ocean engineering intrinsically-safe instrument flexible cable

Technical field

The utility model relates to the cables manufacturing technical field, and particularly ocean engineering is used the manufacturing technology field of intrinsically-safe instrument flexible cable.

Background technology

Be accompanied by the global energy exploitation to the transfer of ocean, the marine oil and gas engineering is in the ascendant.Owing to be full of inflammable and explosive greasy dirt and gas in the marine oil and gas engineering, for guaranteeing electric signal safety of transmission in the equipment, need special intrinsically-safe instrument cable supporting with it.In the prior art, the instrument cable that boats and ships and ocean engineering are used generally is arranged by many branches, separate cabling, and the space that occupies like this is bigger, the protection weakness of cable, dependability can be poor.

Summary of the invention

The purpose of this utility model is to provide a kind of and multichannel instrument signal cable can be compounded in the cable, and the ocean engineering intrinsically-safe instrument flexible cable of energy safe operation.

The utility model comprises three groups of stranded cores mutually, sets gradually total lapping layer, total screen, sheath, armour and external sheath layer in described three groups of stranded core outsides; Between described total lapping layer and total screen, the external drainage line is set; Between described three groups of cores and total lapping layer, filling is set; Described every group of core includes tin-coated copper tow strand conductor, sets gradually insulating barrier, unit screen and unit lapping layer in the described tin-coated copper tow strand conductor outside, between described insulating barrier and unit screen interior drainage thread is set respectively.

The utility model conductor is by 7 stranded forming of tinned copper wire; Insulating barrier is the low-density crosslinked polyethylene; Unit screen and total screen are aluminium foil polyester composite band, and sheath is the low smoke and zero halogen polyethylene; Oversheath is low temperature resistant, oil resistant mud, low smoke and zero halogen modified crosslinking polyolefin; Armour is that tinned copper wire is woven into.The utility model scientific structure is new reasonable, technology advanced person, and serviceability is good, not only has characteristics such as excellent low electric capacity, low inductance, essential safety, signal transmission capabilities are strong, good in anti-interference performance; And have fire-retardant, low temperature resistant, oil resistant mud, performance such as block water.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

As shown in Figure 1, the utility model comprises three groups of stranded cores 1 mutually, sets gradually total lapping layer 2, total screen 4, sheath 5, armour 6 and external sheath layer 7 in described three groups of stranded core 1 outsides; Between described total lapping layer 2 and total screen 4, external drainage line 3 is set; Between described three groups of cores 1 and total lapping layer 2, arrange and fill 8; Described every group of core 1 includes tin-coated copper tow strand conductor 9, set gradually insulating barrier 10, unit screen 12 and unit lapping layer 13, drainage thread 11 between described insulating barrier 10 and unit screen 12, arranging respectively in described tin-coated copper tow strand conductor 9 outsides.

Claims (1)

1. the ocean engineering intrinsically-safe instrument flexible cable is characterized in that: comprise three groups of stranded cores mutually, set gradually total lapping layer, total screen, sheath, armour and external sheath layer in described three groups of stranded core outsides; Between described total lapping layer and total screen, the external drainage line is set; Between described three groups of cores and total lapping layer, filling is set; Described every group of core includes tin-coated copper tow strand conductor, sets gradually insulating barrier, unit screen and unit lapping layer in the described tin-coated copper tow strand conductor outside, between described insulating barrier and unit screen interior drainage thread is set respectively.

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