CN102945706A

CN102945706A - Communication cable for pipeline

Info

Publication number: CN102945706A
Application number: CN2012105287600A
Authority: CN
Inventors: 王益
Original assignee: 王益
Current assignee: Zhuhai jetech wire & Cable Co. Ltd.
Priority date: 2012-12-10
Filing date: 2012-12-10
Publication date: 2013-02-27
Anticipated expiration: 2032-12-10
Also published as: CN102945706B

Abstract

The invention provides a communication cable for pipeline. The communication cable comprises a cable core, a first lapped covering arranged outside the cable core and a sheath layer arranged outside the first lapped covering, wherein the cable core comprises a plurality of data line pairs each including a pair of conductors; a second lapped covering and a third lapped covering are wrapped outside each data line pair in sequence; the cable core further comprises center stiffeners the quantity the same as that of the data line pairs, and are lapped by the second lapped covering and the third lapped covering along with each data line pair respectively. The communication cable for the pipeline has the advantages of being capable of satisfying large-angle installing and laying requirements on the pipeline, well reflecting adaptability to using environment, being capable of preventing external water vapor from entering the data line pairs, and ensuring the communication effects.

Description

A kind of communication cable for pipeline

Technical field

The present invention relates to technical field of electric wires and cables, especially relate to a kind of communication cable for pipeline.

Background technology

Communication cable for pipeline is referred to as special cable by people usually, and why be called as special cable, because because the subsurface investigation operating environment is special, thereby very harsh for the specification requirement of this kind cable, be embodied in: one, because telecommunication cable need to pass 90 ° the pipeline that is uneven in length that is generally tens of rice and even up to a hundred meters, and pipe diameter is slightly larger than the diameter of telecommunication cable, thereby requires telecommunication cable to have excellent intensity and resilience; Its two, need guarantee desirable high and low temperature resistance; Its three because telecommunication cable uses at darker underground environment, and underground environment is comparatively moist, therefore requires it to have extremely low water absorption rate, to avoid the inner data wire of hydrone invasion and attack pair, causes communication efficiency is exerted an influence; Its four, require light self-weight and hardness high, but do not lose flexible effect, etc.At present, no matter be design department or the production firm of electric wire, all make as far as possible communication cable for pipeline satisfy at least these four requirements and effort.

Chinese patent ZL201110269520.9 discloses " communication cable for pipeline ", it comprises cable core, the first lapping layer and restrictive coating, cable core comprises plurality of data line pair, each data wire is to being made of the pair of conductors coating outer with being coated on each conductor, cable core also comprises second, the 3rd lapping layer, central reinforce member and ground wire, the second lapping layer is wrapped external at data wire, the 3rd lapping layer is wrapped outside the second lapping layer, the right quantity of the quantity of ground wire and data wire equates, and follow respectively in each data wire pair, central reinforce member is positioned at the center of cable core, central reinforce member is made of the glass fiber boundling and is coated by the polyester twining package tape, and described plurality of data line is to centering on central reinforce member and stranded with central reinforce member.Although it has satisfied above-mentioned four conditions to a certain extent, effect is still undesirable, also has following shortcoming:

1, central reinforce member is positioned at the center of cable core, and the large quantity space that it has tied up cable core causes space availability ratio not high;

2, each data wire between and can leave a large amount of slits between each data wire pair and the central reinforce member because the existence in slit can make large quantity of air or steam enter, thereby the inner data wire of invasion and attack pair causes communication efficiency is exerted an influence.

Summary of the invention

The object of the invention is to: the problem for prior art exists provides a kind of communication cable for pipeline.

Goal of the invention of the present invention is achieved through the following technical solutions:

A kind of communication cable for pipeline, comprise cable core, be positioned at the first outer lapping layer of cable core and be positioned at the outer restrictive coating of the first lapping layer, cable core comprises a plurality of data wires that are made of pair of conductors pair, each data wire externally is surrounded with second, third lapping layer successively, it is characterized in that, described cable core also comprises central reinforce member, and the right quantity of the quantity of central reinforce member and data wire equates, and follows respectively each data wire to wrapped by second, third lapping layer together.

Preferably, the plurality of data line is to around one of them data wire pair, and with this data wire strand.

Preferably, described cable core also comprises ground wire, and the right quantity of the quantity of ground wire and data wire equates, and follows respectively each data wire to wrapped by second, third lapping layer together with central reinforce member.

Preferably, described cable core also comprises the first packed layer, and this first packed layer is filled between the gap of the second lapping layer inside.

Preferably, described cable core also comprises the second packed layer, the data wire that this second packed layer is filled in cable core inside between the gap in.

Preferably, described central reinforce member is made of the glass fiber boundling and is coated by the polyester twining package tape.

Preferably, described the first packed layer and the second packed layer are the petroleum jelly packed layer.

Preferably, each conductor of every pair of conductor is coated with coating.

Compared with prior art, the present invention has the following advantages:

1, uses the many piece central reinforce members replacement existing central reinforce members placing cable core center of data wire to inside that are placed in, not only greatly strengthened the hardness of cable, the space that central reinforce member can also be tied up spares, and is used for placing more data wire pair;

2, at each data wire ground wire is set internally, can avoids data wire to the phase mutual interference when transmitting;

3, in cable, be filled with first, second packed layer, can occupy each data wire between and each data wire a large amount of slits that inside is left, and then stop large quantity of air or steam to enter, prevent from inner data wire of its invasion and attack pair from communication efficiency being exerted an influence.

Description of drawings

Fig. 1 is structural representation of the present invention.

The drawing reference numeral explanation:

1 for cable core, 2 be the first lapping layer, 3 for reinforcement centered by the restrictive coating, 4,11 for data wire to, 12 be the second lapping layer, 13 be the 3rd lapping layer, 14 for the polyester twining package tape, 15 for ground wire, 111 for each conductor, 112 for coating, 142 be that the first packed layer, 141 is the first packed layer.

Embodiment

The present invention is described in detail below in conjunction with the drawings and specific embodiments.

Embodiment 1

Shown in Fig. 1: a kind of communication cable for pipeline, comprise cable core 1, be positioned at the first lapping layer 2 outside the cable core 1 and be positioned at the first lapping layer 2 restrictive coating 3 outward, the first lapping layer 2 is the polyester twining package tape of thickness 0.035 mm, and restrictive coating 3 is modified thermoplastic elastomer.Cable core 1 comprises that a plurality of data wires that are made of pair of conductors are to 11, the data wire of this enforcement is to being six, data wire is to stranded each other between 11 self the pair of conductors, when each data wire to 11 self stranded after, just at each data wire to 11 outer wrapped the second lapping layers 12 of being filled the post of by aluminium foil, wherein the thickness of aluminium foil is 0.04 mm.Be the polyester twining package tape at the second lapping layer 12 outer wrapped the 3rd lapping layer 13, the three lapping layers 13 then, thickness is 0.035 mm.Cable core 1 also comprises central reinforce member 4, the quantity of central reinforce member 4 and data wire equate 11 quantity, and follow respectively each data wire to 11 together by second, third lapping layer 12,13 wrapped, central reinforce member 4 is placed in data wire to 11 inside, not only greatly strengthened the hardness of cable, the space that central reinforce member can also be tied up spares, and is used for placing more data wire pair.Central reinforce member 4 is by glass fiber boundling (set) and be surrounded with the polyester twining package tape 14 that thickness is preferably 0. 015 mm outside it.Six data wires are to 11 around one of them data wire pair, and with this data wire strand.

Cable core 1 also comprises ground wire 15, and ground wire 15 is that the zinc-plated stranded copper wire of 0. 25 mm is filled the post of by filament diameter.The quantity of ground wire 15 and data wire equate 11 quantity, and follow respectively each data wire to 11 and central reinforce member 4 together by second, third lapping layer 12,13 wrapped.The setting of ground wire 15 can avoid data wire to 11 interfering with each other when transmitting.

Cable core 1 also comprises the first packed layer 142, and this first packed layer 142 is filled between the gap of the second lapping layer 12 inside.Cable core 1 also comprises the second packed layer 141, and the data wire that this second packed layer 141 is filled in cable core 1 inside is in the gap between 11.The first packed layer 142 and the second packed layer 141 are the petroleum jelly packed layer.The petroleum jelly packed layer can occupy each data wire between 11 and each data wire a large amount of slits that inside is left, and then stops large quantity of air or steam to enter, and prevents from inner data wire of its invasion and attack pair from communication efficiency being exerted an influence.

Each conductor 111 of every pair of conductor is coated with coating 112.Conductor 111 is made of the zinc-plated stranded copper wire of filament diameter 0. 5 mm, and coating 112 is the fluoroplastics coating, is that fluoroplastics are filled the post of coating 112 by material namely.

Embodiment 2

Referring to Fig. 1,11 quantity is changed data wire into two pairs, two data wires are to mutually stranded; Change the filament diameter of conductor 111 into 0.2 mm; When the filament diameter of conductor 111 is 0.2 mm, the thickness of the second lapping layer aluminium foil can not be too thick, the too thick volume of whole cable that will cause increases, simultaneously can not be too thin, too thinly then can not well play a protective role, therefore change the thickness of aluminium foil into 0. 025mm just suitable, and the interference of the shielded conductor that the aluminium foil of this thickness can also be best, prevent adjacent data line between the phase mutual interference; With front same reason, it is just suitable that the thickness that will fill the post of the polyester twining package tape of the 3rd lapping layer 13 changes 0.025 mm into; Because the filament diameter of conductor 111 changes 0.2 mm into, in order well to avoid data wire to 11 interfering with each other when transmitting, through the test of many times checking, change the diameter that consists of the zinc-plated stranded copper wire of ground wire 15 into 0.22 mm and can reach best effect; Change the thickness of wrapped polyester twining package tape 14 outside central reinforce member 4 into 0. 02 mm, the central reinforce member bundle can not only be tightened like this, the thickness that adopts simultaneously also is minimum; With the first lapping layer 2(polyester twining package tape) thickness change 0.025 mm into.All the other are all with the description to EXAMPLE l.

Embodiment 3

Referring to Fig. 1,11 quantity is changed data wire into four pairs, three data wire strands a data wire that is positioned at the center on; Following size also is optimal size, changes the filament diameter of conductor 111 into 0.15 mm; Change the thickness of aluminium foil into 0. 03 mm; The thickness that to fill the post of the polyester twining package tape of the 3rd lapping layer 13 changes 0.020 mm into; Change the diameter that consists of the zinc-plated stranded copper wire of ground wire 15 into 0.1 mm; Change the thickness of wrapped polyester twining package tape 14 outside central reinforce member 4 into 0. 025 mm; With the first lapping layer 2(polyester twining package tape) thickness change 0.02 mm into.All the other are all with the description to EXAMPLE l.

The above only is preferred embodiment of the present invention, not in order to limit the present invention, should be pointed out that all any modifications of doing within the spirit and principles in the present invention, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.

Claims

1. communication cable for pipeline, comprise cable core, be positioned at the first outer lapping layer of cable core and be positioned at the outer restrictive coating of the first lapping layer, cable core comprises a plurality of data wires that are made of pair of conductors pair, each data wire externally is surrounded with second, third lapping layer successively, it is characterized in that, described cable core also comprises central reinforce member, and the right quantity of the quantity of central reinforce member and data wire equates, and follows respectively each data wire to wrapped by second, third lapping layer together.

2. a kind of communication cable for pipeline according to claim 1 is characterized in that, the plurality of data line is to around one of them data wire pair, and with this data wire strand.

3. a kind of communication cable for pipeline according to claim 1, it is characterized in that, described cable core also comprises ground wire, and the right quantity of the quantity of ground wire and data wire equates, and follows respectively each data wire to wrapped by second, third lapping layer together with central reinforce member.

4. a kind of communication cable for pipeline according to claim 1 is characterized in that, described cable core also comprises the first packed layer, and this first packed layer is filled between the gap of the second lapping layer inside.

5. a kind of communication cable for pipeline according to claim 1 is characterized in that, described cable core also comprises the second packed layer, the data wire that this second packed layer is filled in cable core inside between the gap in.

6. a kind of communication cable for pipeline according to claim 1 is characterized in that, described central reinforce member is made of the glass fiber boundling and is coated by the polyester twining package tape.

7. a kind of communication cable for pipeline according to claim 1 is characterized in that, described the first packed layer and the second packed layer are the petroleum jelly packed layer.

8. a kind of communication cable for pipeline according to claim 1 is characterized in that, each conductor of every pair of conductor is coated with coating.