CN207601393U - A kind of reinforced optical cable of radiation hardness bending resistance - Google Patents
A kind of reinforced optical cable of radiation hardness bending resistance Download PDFInfo
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- CN207601393U CN207601393U CN201721798673.1U CN201721798673U CN207601393U CN 207601393 U CN207601393 U CN 207601393U CN 201721798673 U CN201721798673 U CN 201721798673U CN 207601393 U CN207601393 U CN 207601393U
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- loose tube
- optical cable
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- bending resistance
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Abstract
The utility model discloses a kind of reinforced optical cables of radiation hardness bending resistance, including cable core, armor and oversheath, armor is provided with outside the cable core, the armor and cable core are encapsulated in oversheath, the cable core includes Loose tube, optical fiber and fiber paste, the optical fiber is set in Loose tube, the fiber paste is filled in the gap between optical fiber and Loose tube, annular groove is equidistantly equipped on the outer wall of the Loose tube along its length, the groove section shape is semicircle, the spacing of adjacent grooves is 4mm, and depth of groove is the half of Loose tube thickness.This optical cable has the characteristics that radiation hardness, fire-retardant, heat safe, and resist bending is had excellent performance, itself is light and is self-bearing type, reduces transport and laid down cost；High place or some places high to the requirement of fire-retardant and high temperature resistant seriously and to optical cable bending property are required suitable for radiation such as the nuclear power stations that is laid in.
Description
Technical field
The utility model is related to communications optical cable technical field, specifically a kind of reinforced optical cable of radiation hardness bending resistance.
Background technology
Often pass through damaged by rats area, woods birds City Regions etc. in optical cable installation circuit, such usual area
Optical cable a period of time after laying, optical cable can be caused to damage by damaged by rats, the calamity of unfirmly closing.At present, anti-rodent is bitten
For optical cable, mainly using following methods：1) chemical method, be typically employed in cable outer sheath material add in it is a certain proportion of
Anti-rat material reaches mouse bite preventing function, such as addition pungent agent, but chemical method pollution environment and timeliness is shorter, with
The passage of time, mouse is gradually applicable in additive taste, and the property feared can gradually reduce, and the optical cable that can also bite causes damage； 2）
Physical method adds steel band or sheath using unique color, but mouse is bitten by insistent, and outer jacket is destroyed
Afterwards, some thickness of strips are inadequate, also quickly by mouse sting bad or steel band directly it is exposed in air, meeting after steel band oxidation
Corrosion, so as to which optical cable endothecium structure can be also destroyed.In addition the optical cable of steel-tape armouring structure itself is heavy and contains metal component,
It is unfavorable for the aerial laying of power circuit, and physical method causes cable outer diameter to become larger, is stiff, heavy and cost increases,
It makes troubles, while also increase the load capacity of supporting rod to transport and laying, from producing, transport, be applied to operation,
Total investment significantly increases； 3）Biological method needs wrapped thicker glass fibre yarn, cost is caused to increase, while its timeliness
Also need to be investigated.
In addition, the outdoor optical cable generally used in domestic access net at present is GYTA, product has adopted relay layer optical cable
Standard, product material is of high cost, and metal reinforcement not thunder-lightning in product needs grounding, and makes under external square one
Outdoor more than 90% access layer optical cable is non-metal reinforcement member optical cable.
For radiating serious and high place being required optical cable bending property to be equally also required to optical cable with mouse bite preventing or prevent
Thunder and lightning function.For example, with fiber optic communication in three generations's nuclear power heap-type using more and more, in the communications optical cable that nuclear power station uses
It is with the following functions to carry needs：1）It is required that service life reaches 60 years or more；2）Flame retardant property need to be tested by single and bunchy；
3）Certain high temperature resistance；4）Radiation hardness thunder-lightning；5）Certain occasion layings need resist bending to have excellent performance.Existing optical cable
It is difficult to meet above-mentioned requirements.In addition, nuclear power station some regions with greater need for radiate it is small, from heavy and light, self-bearing type and bending resistance
The optical cable that song is had excellent performance.
Utility model content
To solve the above problems, the utility model provides a kind of reinforced optical cable of radiation hardness bending resistance, there is radiation hardness, resistance
The characteristics of combustion, high temperature resistant, excellent self-bearing type and bending property.
The technical solution adopted in the utility model is：A kind of reinforced optical cable of radiation hardness bending resistance, including cable core, armor and
Oversheath, the cable core are provided with armor outside, and the armor and cable core are encapsulated in oversheath, and the cable core includes pine and covers
Pipe, optical fiber and fiber paste, the optical fiber are set in Loose tube, and the fiber paste is filled in the gap between optical fiber and Loose tube, institute
It states and is equidistantly equipped with several annular grooves on the outer wall of Loose tube along its length.
The annular groove cross sectional shape is semicircle, and depth of groove is the half of Loose tube thickness.
Spacing between the annular groove is 4mm.
The armor is circular two FRP by section and section is that rectangular two flat FRP are formed, two circles
The FRP of shape is symmetrically arranged centered on cable core axial line, two flat FRP cloth symmetrical above and below centered on cable core axial line
It puts.
Distance is 3.9mm between two flat FRP, and distance is 6.2mm between two circle FRP.
Aluminum silicate fiber paper is surrounded with outside the cable core.
The optical fiber is the silica fibre for coating radiation resistant coating.
The Loose tube and oversheath are made of radiation hardness and fire-retardant polytetrafluoroethylene (PTFE).
The Loose tube is PBT Loose tubes, and the oversheath is PE oversheaths.
The cross sectional shape of the oversheath is pancake.
The beneficial effects of the utility model are：1st, traditional lightning protection measures are mainly by grounding to reach the effect of lightning protection
Fruit, causes to lay cumbersome, and the optical cable with hardware registers one's residence to exist and thunder and lightning introduced indoor risk, but this light
Cable uses all dielectric nonmetallic materials and appearance is flat form, have light-weight, small and tension without any metal material
The advantages that intensity is high can also eliminate thunder and lightning hidden danger, and traction is lighter, is suitble to more multi-environment lower laying.2nd, this optical cable uses quadruple
Radiation proof material（Fibre coating, radiation hardness Loose tube, radiation hardness FRP armors, radiation hardness Loose tube）, effective protection optical cable is not
It is influenced by nuclear radiation.3rd, Loose tube and outer jacket have excellent flame retardant property using perfluoroethylene.Alumina silicate can not only be protected
The communication for demonstrate,proving optical cable in fire maintains the long period, to provide the valuable data backup time in fire, moreover it is possible to effectively reduce
Optical cable is conducted oneself with dignity.4th, the optical cable has both light, small, radiation hardness, resist bending, fire-retardant and heat safe feature, suitable for nuclear power
It the harsh laying environment such as stands.5th, itself is light and is self-bearing type, reduces transport and laid down cost, adapts to a variety of system of laying, example
Such as pipeline, direct-burried and Self-bearing-type overhead are especially suitable for the laying environment of dynamic change.
Description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment 1；
Fig. 2 is the longitudinal sectional view of the utility model Loose tube；
Fig. 3 is the structure diagram of the utility model embodiment 2；
Wherein：1st, Loose tube, 11, groove, 2, optical fiber, 3, fiber paste, 4, aluminum silicate fiber paper, 5, flat FRP, 6, round
FRP, 7, oversheath.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is made below in conjunction with embodiment and attached drawing further
It is described in detail, which is only used for explaining the utility model, does not form the restriction to scope of protection of the utility model.
Embodiment 1
As depicted in figs. 1 and 2, a kind of electrically enhanced optical cable of radiation hardness lightning protection, including cable core, armor and oversheath 7, cable
Core includes Loose tube 1, the coating even number root silica fibre 2 of radiation resistant coating and fiber paste 3, and optical fiber 2 is set in Loose tube, fiber paste 3
It is filled in the gap between optical fiber and Loose tube.Loose tube is made of radiation hardness and fire-retardant polytetrafluoroethylene (PTFE), due to adopting
It is loose tube structure, optical fiber, in relaxed state, can obtain effective and reasonable remaining length in Loose tube, have good light
It learns, mechanical performance, while can effective radiation-screening damaging and have a fire-retardant effect to optical fiber.The outer wall upper edge of Loose tube 1
Length direction is equidistantly equipped with annular groove 11 and forms ripple struction, and groove section shape is semicircle, the spacing of adjacent grooves
For 4mm, the depth of groove is 0.18mm, and depth of groove is about the half of Loose tube thickness, keeps smooth inside Loose tube.Work as pine
When too small bending occurs for casing, outside groove can strut, and inboard groove both ends can mutually press together, and effectively avoid loose set
Pipe is bent, which can increase substantially the resistance to bend(ing) energy of optical cable, is applied very much and is become in some dynamics
In the laying environment of change, have wide practical use in nuclear power station.
Aluminum silicate fiber paper 4 is surrounded with outside Loose tube, light is applied to as heat-barrier material using aluminum silicate fiber paper for the first time
In cable structure, optical fiber can be protected not damaged by high temperature, can burn 90 minutes and cease fire in 750 DEG C of flame cools down 15 minutes
Interior holding optical fiber is continuous, ensures the integrality of circuit, makes to rescue there are time enough during fire, completes data backup, by number
It is preferably minimized according to loss.Meanwhile aluminum silicate fiber paper has excellent high temperature resistant and fire resistance, while has the density low, flexible
Spend excellent, long lifespan and it is environmentally protective the characteristics of, can effectively reduce the dead weight of optical cable and promote optical cable bending property, it is convenient to apply
If.
Armor is provided with outside aluminum silicate fiber paper 4, armor and cable core are encapsulated in oversheath 7.What oversheath used
It is radiation hardness and fire-retardant polytetrafluoroethylene (PTFE), protects cable core not radiation damaged and flame retardant effect is fine.In addition, alumina silicate fibre
The outer hard-pressed bale oversheath of paper, can reach the requirement that blocks water without additional material water-proof material, can reduce to construction needed for wiping ointment
Material and operating expenses, the pollution caused by during the construction and use that avoids cable cream.
It is that rectangular flat FRP5 is formed that armor, which by two sections is circular FRP and two section, two circles
FRP 6 is symmetrically arranged centered on cable core axial line, two flat FRP cloth symmetrical above and below centered on cable core axial line
It puts.Traditional metal armouring is not used, but employs the FRP armourings of high-strength light, there are following 4 advantages：1）FRP has one
Fixed radiation resistance；2）FRP high intensity itself, high-modulus and erosion-resisting excellent properties can reach mouse bite preventing, anti-unfirmly closing
Effect；3）Can be as needed, various infrastructure products are neatly designed, to meet requirement, product can be made to have very well
Globality；4）With excellent corrosion resistance；5）Light weight, stretch-proof, lateral pressure resistant ability are strong, make the machinery of optical cable entirety
Intensity, tension, anti-pressure ability are all enhanced, while optical cable has certain flexibility and a bending resistance, laying and
It is hardly damaged during use；6）Lightning protection overcurrent proof exempts to be grounded；7）Has stronger longitudinal bracing ability.
Oversheath is made of radiation hardness and fire-retardant polytetrafluoroethylene (PTFE), there is excellent radiation resistance and flame retardant property.
The cross sectional shape of oversheath is pancake.Using pancake structure, there is following advantage：1）It is small, it is light-weight, reduce material
Cost, production cost, laid down cost and back-up environment cost；2）Reduce air resistance coefficient 40% or so, greatly alleviate typhoon pair
Its destruction；3）Under ice damage climatic environment, because of the diminution of outer diameter, reduce the ice sheet and ice slush of 60 ~ 70% cable surfaces,
Greatly mitigate bar linear load, avoid optical cable and be pulled off.
It should be noted that other materials for having radiation hardness and flame retarding function may be used in above-mentioned Loose tube and oversheath
Material, such as perfluoroethylene-propylene etc.；Aluminum silicate fiber paper could alternatively be other heat-resisting materials, such as ceramic polyolefin tapes
Deng.
This optical cable production cost is low, and without scrap build, only need to process corresponding moulds of industrial equipment can produce.This light
Cable has the characteristics that radiation hardness, fire-retardant, heat safe, and resist bending is had excellent performance, itself is light and is self-bearing type, reduces transport
And laid down cost；It is serious and require optical cable bending property high place or some are right suitable for radiation such as the nuclear power stations that is laid in
Fire-retardant and high temperature resistant requires high place, such as in subway, tunnel, coal mine and building.
Embodiment 2
As shown in Figures 2 and 3, a kind of electrically enhanced optical cable of radiation hardness lightning protection, including cable core, armor and oversheath 7, cable
Core includes Loose tube 1, the coating even number root silica fibre 2 of radiation resistant coating and fiber paste 3, and optical fiber 2 is set in Loose tube, fiber paste 3
It is filled in the gap between optical fiber and Loose tube.Loose tube is PBT Loose tubes, since using loose tube structure, optical fiber exists
In relaxed state in Loose tube, effective and reasonable remaining length can be obtained, there is good optics, mechanical performance, it can also basis
It needing, non-metallic armoring layer is set on the outside of Loose tube, further enhance the mechanical performance of cable core, external shock resistance ability is strong,
It is hardly damaged.Annular groove 11 is equidistantly equipped on the outer wall of Loose tube 1 along its length and forms ripple struction, groove section shape
Shape is semicircle, and the spacing of adjacent grooves is 4mm, and the depth of groove is 0.18mm, and depth of groove is about the one of Loose tube thickness
Half, Loose tube inside keeps smooth.When too small bending occurs for Loose tube, outside groove can strut, the meeting of inboard groove both ends
It mutually presses together, effectively Loose tube is avoided to bend, which can increase substantially the resistance to bend(ing) of optical cable
Can, it applies very much in the laying environment of some dynamic changes, has wide practical use in nuclear power station.
Armor is provided with outside cable core, armor and cable core are encapsulated in oversheath 7.Oversheath is using high density PE
Oversheath not only has preferable rigidity, toughness and larger tensile strength, but also modulus is big, and wearability is good, has preferably
Environmental stress cracking resistance, added one layer of protection again for the aging of optical cable corrosion resistant.In addition, the outer hard-pressed bale oversheath of Loose tube, nothing
It needs additional material water-proof material that can reach the requirement that blocks water, material and operating expenses needed for wiping ointment can be reduced to construction,
The pollution caused by during the construction and use that avoids cable cream.
It is that rectangular flat FRP5 is formed that armor, which by two sections is circular FRP and two section, two circles
FRP 6 is symmetrically arranged centered on cable core axial line, two flat FRP cloth symmetrical above and below centered on cable core axial line
It puts, is effectively protected cable core, improve the mechanical strength of optical cable entirety, biting for rodent can also be effectively prevent, resist
Drawing, anti-pressure ability are all enhanced, and are laid with and use is hardly damaged in the process.Distance is 3.9mm between two flat FRP,
Distance is 6.2mm between two circle FRP, so as to ensure that protective cover material can fully be extruded in Loose tube surrounding.It does not use traditional
Metal armouring, but the FRP armourings of high-strength light are employed, there are following 4 advantages：1）FRP has certain radiation resistance；
2）FRP high intensity itself, high-modulus and erosion-resisting excellent properties can reach the effect of mouse bite preventing, anti-unfirmly closing；3）It can basis
It needs, neatly designs various infrastructure products, to meet requirement, product can be made to have good globality；4）Have
Excellent corrosion resistance；5）Light weight, stretch-proof, lateral pressure resistant ability are strong, make the mechanical strength of optical cable entirety, tension, resistance to compression
Ability is all enhanced, while optical cable has certain flexibility and bending resistance, is not easy during laying and use
Damage；6）Lightning protection overcurrent proof exempts to be grounded；7）Has stronger longitudinal bracing ability.
Oversheath is high density PE oversheaths, not only has preferable rigidity, toughness and larger tensile strength, and
And modulus is big, wearability is good, there is preferable environmental stress cracking resistance, has added one layer of protection again for the aging of optical cable corrosion resistant.Outside
The cross sectional shape of sheath is pancake.Using pancake structure, there is following advantage：1）It is small, it is light-weight, reduce material into
Sheet, production cost, laid down cost and back-up environment cost；2）Reduce air resistance coefficient 40% or so, greatly alleviate typhoon to it
Destruction；3）Under ice damage climatic environment, because of the diminution of outer diameter, reduce the ice sheet and ice slush of 60 ~ 70% cable surfaces, pole
It is big to mitigate bar linear load, it avoids optical cable and is pulled off.
This optical cable production cost is low, and without scrap build, only need to process corresponding moulds of industrial equipment can produce.Whole
Optical cable uses all dielectric nonmetallic materials and appearance is flat form, have light-weight, small, anti-without any metal material
The advantages that thunder, anti-electric shock.The structure of this optical cable changes traditional optical access network Transmission system ground connection framework, nonmetallic in product
Reinforcer thunder-lightning exempts to be grounded, and laying is convenient, adapts to a variety of back-up environments, improves pipeline utilization rate, more adapts to pipeline harshness
Under the conditions of laying, while Self-bearing-type overhead laying can meet the performance of mouse bite preventing, anti-unfirmly closing.In short, the utility model produces
Product have both radiation hardness, bending resistance, thunder-lightning and anti-rodent and bite and the advantages of mechanical performance is strong.In the plague of rats, bird pest and thunder and lightning
Endangering serious area has good application prospect.
Claims (10)
1. a kind of reinforced optical cable of radiation hardness bending resistance, which is characterized in that including cable core, armor and oversheath, outside the cable core
Armor is provided with, the armor and cable core are encapsulated in oversheath, and the cable core includes Loose tube, optical fiber and fiber paste, institute
Optical fiber is stated in Loose tube, the fiber paste is filled in the gap between optical fiber and Loose tube, on the outer wall of the Loose tube
It is equidistantly equipped with several annular grooves along its length.
A kind of 2. reinforced optical cable of radiation hardness bending resistance according to claim 1, which is characterized in that the annular groove section
Shape is semicircle, and depth of groove is the half of Loose tube thickness.
A kind of 3. reinforced optical cable of radiation hardness bending resistance according to claim 1 or 2, which is characterized in that the annular groove
Between spacing be 4mm.
4. a kind of reinforced optical cable of radiation hardness bending resistance according to claim 1, which is characterized in that the armor is by section
It is rectangular two flat FRP compositions for circular two FRP and section, two circular FRP are using cable core axial line in
The heart is symmetrically arranged, two flat FRP arrangements symmetrical above and below centered on cable core axial line.
A kind of 5. reinforced optical cable of radiation hardness bending resistance according to claim 4, which is characterized in that two flat FRP
Between distance be 3.9mm, distance is 6.2mm between two circle FRP.
6. a kind of reinforced optical cable of radiation hardness bending resistance according to claim 1, which is characterized in that be surrounded with outside the cable core
Aluminum silicate fiber paper.
7. a kind of reinforced optical cable of radiation hardness bending resistance according to claim 1, which is characterized in that the optical fiber is that coating is resistance to
The silica fibre of radiation coating.
8. a kind of reinforced optical cable of radiation hardness bending resistance according to claim 1, which is characterized in that the Loose tube and outer shield
Set is made of radiation hardness and fire-retardant polytetrafluoroethylene (PTFE).
9. a kind of reinforced optical cable of radiation hardness bending resistance according to claim 1, which is characterized in that the Loose tube is PBT
Loose tube, the oversheath are PE oversheaths.
10. a kind of reinforced optical cable of radiation hardness bending resistance according to claim 1, which is characterized in that the oversheath is cut
Face shape is pancake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721798673.1U CN207601393U (en) | 2017-12-21 | 2017-12-21 | A kind of reinforced optical cable of radiation hardness bending resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721798673.1U CN207601393U (en) | 2017-12-21 | 2017-12-21 | A kind of reinforced optical cable of radiation hardness bending resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207601393U true CN207601393U (en) | 2018-07-10 |
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ID=62767523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721798673.1U Active CN207601393U (en) | 2017-12-21 | 2017-12-21 | A kind of reinforced optical cable of radiation hardness bending resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207601393U (en) |
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2017
- 2017-12-21 CN CN201721798673.1U patent/CN207601393U/en active Active
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