Deep sea optical cable coupling box and connection technology thereof
Technical field
Deep sea optical cable coupling box of the present invention and connect that technology relates to be a kind of deep-sea cable coupling arrangement and connect technology, be applicable to continuing of factory in the deep-sea cable communication system, also be applicable to the maintenance of deep-sea cable fault.
Background technology
At present, sea cable joint box can only bear the hydraulic pressure of 500m, be applicable to the connection of Shallow water cable, and the structure of present deep-sea cable and Shallow water cable are had any different, also have deep-sea cable to be applicable to the 8000m depth of water, sealing property requires higher, so original extra large cable joint box can not satisfy the connection of deep-sea cable, so, need deep sea optical cable coupling box to finish the connection of deep-sea cable.In addition, the factory length of extra large cable is subjected to manufacturing equipment, lays the restriction of ship, when long haul communication, with regard to needing deep sea optical cable coupling box the deep-sea cable of finite length is coupled together.
Summary of the invention
The present invention seeks to provides a kind of deep sea optical cable coupling box and connects technology at above-mentioned extra large cable joint box weak point, and it is little, simple in structure to have a volume, and sealing property is higher, more reliable.Big length submarine optical fiber cable transportation, lay and operational process in, it is unavoidable breaking down, so deep sea optical cable coupling box is again the important means of reparation fault.
Deep sea optical cable coupling box takes following scheme to realize:
The deep sea optical cable coupling box structure comprises bending restrictor, outer cylinder body, outer cone seat, the outer axis of cone, inner cone gland, the interior axis of cone, load nut, fiber storage tray, inner barrel, prefabricated tube, the injection moulding seal of being with universal joint.
Fiber storage tray is by being threaded in the middle of the load nut; The interior axis of cone and inner cone gland are formed the inner steel wire stationary installation, are connected with the load nut; Inner barrel is enclosed within on the two load nuts; Prefabricated jacket casing is connected with the deep-sea cable cable core by the injection moulding seal on inner barrel; Outer cylinder body is enclosed within outside the injection molding body, and the outer cone seat and the outer axis of cone are formed the outer steel wire stationary installation, are connected with outer cylinder body by outer cylinder screw cap; Bending restrictor is connected with outer cylinder screw cap.
The connection technology of deep sea optical cable coupling box is achieved in that
1. the connection of armour stationary installation in the deep-sea cable: the interior axis of cone is penetrated stainless-steel tube cable core precession inner cone gland, then the inner cone gland is placed on to withhold in the device and clamps.
2. the connection of optical fiber fiber storage tray: with the load nut interior armour stationary installation is installed in the two ends of fiber storage tray, opens and denude fine stainless-steel tube, draw optical fiber, carry out fibre junction; With the fiber reel that connects in fiber storage tray.
3. inner barrel is enclosed within on the load nut, prefabricated jacket casing is on inner barrel.
4. injection moulding sealing: the prefabricated tube that will install is put injection mould into, carries out the injection moulding sealing with injection machine, and injection moulding finishes injection molding body is put into the x-ray detection instrument, and the defective of injection moulding is checked.
5. outer cylinder body is moved on on the injection moulding seal,, with outer cone seat, outer steel wire, outer cone axis clamping, form the outer steel wire stationary installation with the hydraulic clamp instrument with outer axis of cone fixed outer cylinder body two ends.
6. with outer cylinder screw cap the outer steel wire stationary installation is connected with outer cylinder body, bending restrictor is fixed on the outer cylinder screw cap.
Deep sea optical cable coupling box is reasonable in design, simple in structure, volume is little, sealing property height, reliable.Big length submarine optical fiber cable transportation, lay and operational process in, it is unavoidable breaking down, so deep sea optical cable coupling box is an important coupling arrangement of repairing fault, the connection technology of deep sea optical cable coupling box is the reparation fault deep-sea cable optimum process method that continues.Under the hydraulic condition of 80MPa (suitable and 8000m), the waterproof seal of connector box had reliable waterproof sealing performance during 25 years; Afloat installation time was controlled in 12 hours; Pull-off strength is not less than 90% of optical cable Fracture Force, and the work pulling strengrth is not less than optical cable short-term job pulling force; Insulation resistance is not less than 1000M Ω (DC500V), and proof voltage intensity is not less than 5000V (DC/3min), need satisfy the electrically conducting performance simultaneously, guarantees remote power feeding; The fibre junction decay is not more than 0.06dB.
Description of drawings
The invention will be further described below with reference to accompanying drawing.
The inner steel wire stationary installation synoptic diagram of Fig. 1 deep sea optical cable coupling box.
The outer steel wire stationary installation synoptic diagram of Fig. 2 deep sea optical cable coupling box.
The injection molding material seal connection diagram of Fig. 3 deep sea optical cable coupling box.
The load nut of Fig. 4 deep sea optical cable coupling box, inner core, fiber storage tray connection diagram.
Fig. 5 deep sea optical cable coupling box structural representation.
Mark among the figure: 1. bending restrictor, 2. outer cylinder screw cap, 3. outer cone seat, 4. outer steel wire, the 5. outer axis of cone, 6. outer cylinder body, 7. inner barrel, 8. fiber storage tray, 9. prefabricated tube, 10. load nut, 11. the interior axis of cone, 12. inner steel wires, 13. inner cone glands, 14. injection moulding seals, 15. universal joints
Embodiment
With reference to accompanying drawing 1,2,3,4, the deep sea optical cable coupling box structure comprise bending restrictor 1, outer cylinder screw cap 2, outer cone seat 3,, outer steel wire 4, the outer axis of cone 5, outer cylinder body 6, inner barrel 7, fiber storage tray 8, prefabricated tube 9, load nut 10, the interior axis of cone 11, inner steel wire 12, inner cone gland 13, injection moulding seal 14.Bending restrictor 1 is provided with universal joint 15.
Fiber storage tray 8 is middle by being threaded in load nut 10; The interior axis of cone 11 and inner cone gland 13 are formed the inner steel wire stationary installation, are connected with load nut 10; Inner barrel 7 is enclosed within on the two load nuts 10; Prefabricated tube 9 is enclosed within on the inner barrel, is connected with the deep-sea cable cable core by injection moulding seal 14; Outer cylinder body 6 is enclosed within outside the injection molding body, and the outer cone seat 3 and the outer axis of cone 5 are formed the outer steel wire stationary installation, are connected with outer cylinder body 6 by outer cylinder screw cap 2; Crooked restriction 1 is connected with outer cylinder screw cap 2.Fiber storage tray 8 has pallet, disk and cover plate, and pallet two ends up and down is provided with the fine unit of storage.
Inner barrel 7 is used to bear seawater pressure, and the protection fibre-optical splice; Outer cylinder body 6 is used to protect prefabricated tube, bears the pulling force of outer steel wire.
The connection technology of deep sea optical cable coupling box is achieved in that
1. the connection of armour stationary installation in the deep-sea cable: the interior axis of cone 11 is penetrated stainless-steel tube cable core precession inner cone gland 13, then inner cone gland 13 is placed on to withhold in the device and clamps.
2. the connection of optical fiber fiber storage tray: with load nut 10 interior armour stationary installation is installed in the two ends of fiber storage tray 8, opens and denude fine stainless-steel tube, draw optical fiber, carry out fibre junction; With the fiber reel that connects in fiber storage tray 8.
3. inner barrel 7 is enclosed within on the load nut 10, prefabricated tube 9 is enclosed within on the inner barrel 7.
4. injection moulding sealing: the prefabricated tube 9 that will install is put injection mould into, carries out the injection moulding sealing with injection machine, and injection moulding finishes injection moulding seal 14 is put into the x-ray detection instrument, and injection molding body is carried out defect inspection.
5. outer cylinder body 6 is moved on on the injection moulding seal 14, the outer axis of cone 5 is fixed on outer cylinder body 6 two ends, outer cone seat 3, outer steel wire 4, the outer axis of cone 5 are clamped, form the outer steel wire stationary installation with the hydraulic clamp instrument.
6. with outer cylinder screw cap 2 the outer steel wire stationary installation is connected with outer cylinder body 6, bending restrictor is fixed on the outer cylinder screw cap 2.