CN2563716Y

CN2563716Y - Photoelectric composite charging detection cable

Info

Publication number: CN2563716Y
Application number: CN 02235007
Authority: CN
Inventors: 李琪; 郭士尧; 杨海深
Original assignee: TIANJIN ANGEL GROUP CO Ltd
Current assignee: Tianjin Anqier Puruisiman Cable Co.Ltd
Priority date: 2002-05-28
Filing date: 2002-05-28
Publication date: 2003-07-30
Anticipated expiration: 2012-05-28

Abstract

Disclosed is a photoelectric composite loading and detecting cable, which comprises a plurality of optical fibers; a steel tube protective layer coats the plurality of optical fibers, the gaps between the steel tube protective layer and the plurality of optical fibers are filled with ointment; a polyurethane or rubber inner sheath is extruded at the outside of the steel tube protective layer; a plurality of high tensile steel wires and power cords enwind the polyurethane or rubber inner sheath at the outside, each power cord adopts the stranding of a plurality of metal wires and is extruded by a plastic insulating layer at the outside. The utility model adopts the plurality of optical fibers as the signal line transmission signals, so the deadweight is greatly reduced, and the transmitted signals have hardly any attenuation, then the cable can carry out the large-depth measurement; a stainless steel tube is adopted as a protective layer of the optical fibers at the outside, the steel tube is extruded by a plastic or rubber inner sheath at the outside for avoiding the damage to the steel tube, and double-winding high tensile steel wires are adopted as an armored layer at the outside of the inner sheath for improving the integral intensity and effective carrying capacity of the cable.

Description

The compound charge bearing detecting cable of photoelectricity

Technical field

The utility model relates to a kind of ocean cable, relates in particular to a kind of decay that reduces the cable transmission signal, can carry out the measurement of the big degree of depth, reduces the cable deadweight, improves the compound charge bearing detecting cable of photoelectricity of effective bearing capacity of cable.

Background technology

Charge bearing detecting cable is mainly used in oceanographic survey, the well logging of various oil gas wells, perforation, gets operation such as core, also is used for river, bay, water conservancy hydrographic survey, coal exploration, and aspects such as geothermal logging are as hanging heavy apparatus measures connecting line.Now the charge bearing detecting cable of producing adopts seven metallic conductor insulated wires as holding wire or power line transmission signals or electric energy, twines armouring wire outward, thus signal attenuation is big, from great, can't grow Distance Transmission signal and length work.Because signal attenuation is big, use length to be restricted (use when long,, receive the signal that instrument can't resolved measurement) because of decay is too big, can't carry out the big degree of depth (more than the ten thousand metres) and measure; Because of metallic conductor core density is big, cause the cable deadweight excessive, effective bearing capacity of cable is reduced greatly.

Summary of the invention

Big in order to overcome the signal attenuation that existing ocean charge bearing detecting cable exists, can't carry out big depth survey, the cable deadweight is excessive, reduce the shortcoming of effective bearing capacity greatly, the utility model provides a kind of photoelectricity compound charge bearing detecting cable, by changing the project organization of existing charge bearing detecting cable, with optical fiber replace the metallic conductor core as holding wire to remedy the shortcoming of existing charge bearing detecting cable, make and the utlity model has the decay that can reduce the cable transmission signal, make cable can carry out the measurement of the big degree of depth, and reduce the cable deadweight, improve the effect of effective bearing capacity of cable.

The technical scheme that its technical problem that solves the utility model adopts is:

The compound charge bearing detecting cable of a kind of photoelectricity is characterized in that it comprises: multifiber; One water pipe precaution layer is coated on this multifiber, the slit factice for filling between this water pipe precaution layer and the multifiber; One sheath extrudes outside this water pipe precaution layer; Many high-tensile steel wires and power line are wound in outside this polyurethane or the rubber sheath, and every power line adopts that strands of metal wire is stranded to form, and the outside extrudes a plastic insulating layer.

The beneficial effects of the utility model are, because the cable core of cable adopts multifiber as the signal wire transmits signal, not only reduce deadweight greatly, and make the almost not decay of being transmitted of signal, make cable can carry out the measurement of the big degree of depth; Optical fiber adopts the protective layer of stainless steel tube as optical fiber outward; factice for filling between optical fiber and stainless steel tube; steel pipe extrudes one deck plastics outward or the rubber sheath is protected steel pipe; in order to avoid steel pipe sustains damage; outside sheath, adopt the double-deck winding of high-tensile steel wires as armour; internal layer at double-layer wire has the power line with some to be wrapped on the sheath with steel wire of internal layer, can improve bulk strength, improves the effect of effective bearing capacity of cable.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

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

The number in the figure explanation:

1---the strands wire

2---fluoroplastics or polyolefin insulation

3---polyurethane or rubber sheath

4---high-tensile steel wires

5---optical fiber

6---factice for filling

7---the water pipe precaution layer

Embodiment

Consult shown in Figure 1ly, the utility model comprises: multifiber 5; One water pipe precaution layer 7 is coated on this multifiber 5, the slit factice for filling 6 between this water pipe precaution layer 7 and the multifiber 5; One sheath 3, sheath 3 adopts polyurethane or rubber to make and extrude outside this water pipe precaution layer 7 in the present embodiment; Many high-tensile steel wires 4 and power line are wound in outside this polyurethane or the rubber sheath 3, and every power line adopts strands of metal wire 1 stranded forming, and the outside extrudes a plastic insulating layer 2, and present embodiment plastic insulating layer 2 is fluoroplastics or polyolefin insulation layer.

The compound charge bearing detecting cable of the utility model photoelectricity adopts four optical fiber 5 as the signal wire transmits signal, four power line electric energy transmittings.Optical fiber 5 external application steel pipes are as protective layer 7; slit in the steel pipe is filled with ointment 6; steel pipe extrudes one deck polyurethane or rubber sheath 3 outward as protective layer; the polyurethane sheath twines high-tensile steel wires and power line outward; power line adopts strands of metal wire 1 stranded forming, and the outside extrudes one deck plastics as insulating barrier 2.The tensile strength of this specification cable can reach 7 tons, and active length can reach more than the ten thousand metres, effectively service load more than 500kg, the ampacity 11A of power line.

Design principle of the present utility model is, progress along with science and technology, optical cable substituted metal conductor signal cable has become development trend, photoelectricity and electro-optical signal conversion are ripe, therefore can at first convert the signal of telecommunication of signal source collection to light signal, be transferred to receiver by optical fiber 5, receiver converts light signal to the signal of telecommunication again and carries out various processing.

The utility model optical fiber 5 is decayed when transmission signals and is not more than 0.36dB/km (1310nm), its pad value is compared with metal core holding wire and can be thought and do not have decay, like this, cable can can't not carry out normal surveying work because signal attenuation is excessive when length is worked; The transmission bandwidth of optical fiber 5 is more than 10MHzkm, therefore, an optical fiber 5 just can substitute original many metallic conductor cores and come transmission signals, therefore the deadweight of cable is reduced greatly, under the constant situation of other conditions, the use length of cable can improve a lot; At present; the outer protective layer of domestic light optical cable adopts plastic bushing, and its tensile strength and lateral pressure resistant power are very low, for improving this situation; we have developed steel pipe specially as protective layer, and the tensile strength of whole cable and lateral pressure resistant ability are greatly improved.Adopt this structure, can make the active length of cable reach ten thousand metres still can operate as normal when above, and core crack conditions can not occur.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, the compound charge bearing detecting cable of a kind of photoelectricity is characterized in that it comprises:

Multifiber;

One water pipe precaution layer is coated on this multifiber, the slit factice for filling between this water pipe precaution layer and the multifiber;

One sheath extrudes outside this water pipe precaution layer;

Many high-tensile steel wires and power line are wound in outside this polyurethane or the rubber sheath, and every power line adopts that strands of metal wire is stranded to form, and the outside extrudes a plastic insulating layer.