CN113917636B - In-situ rush-repair equipment for preventing abrasion damage of submarine optical cable - Google Patents
In-situ rush-repair equipment for preventing abrasion damage of submarine optical cable Download PDFInfo
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- CN113917636B CN113917636B CN202111222333.5A CN202111222333A CN113917636B CN 113917636 B CN113917636 B CN 113917636B CN 202111222333 A CN202111222333 A CN 202111222333A CN 113917636 B CN113917636 B CN 113917636B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 50
- 238000005299 abrasion Methods 0.000 title claims abstract description 29
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 24
- 238000007596 consolidation process Methods 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 58
- 239000002002 slurry Substances 0.000 claims abstract description 48
- 239000013535 sea water Substances 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000005997 Calcium carbide Substances 0.000 claims description 17
- 239000000956 alloy Substances 0.000 claims description 17
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 238000007667 floating Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 14
- 230000008439 repair process Effects 0.000 claims description 13
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000004695 Polyether sulfone Substances 0.000 claims description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims description 3
- 229920006393 polyether sulfone Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims 1
- 238000007711 solidification Methods 0.000 abstract description 13
- 230000008023 solidification Effects 0.000 abstract description 13
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- 108010066114 cabin-2 Proteins 0.000 description 13
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- 230000033001 locomotion Effects 0.000 description 4
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- UXGNZZKBCMGWAZ-UHFFFAOYSA-N dimethylformamide dmf Chemical compound CN(C)C=O.CN(C)C=O UXGNZZKBCMGWAZ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1042—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0241—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to elongated work, e.g. wires, cables, tubes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention provides in-situ rush-repair equipment for preventing abrasion damage of a submarine optical cable, which relates to the field of manufacturing of high-end equipment of ocean engineering, and comprises a shell and an injection assembly, wherein a push plate is arranged in the shell, one side of the push plate is provided with a pneumatic cabin, the other side of the push plate is provided with a first accommodating space, a second accommodating space and a power cabin, gas generating materials, a consolidation base material and consolidation slurry are respectively arranged in the first accommodating space and the second accommodating space, when seawater with controlled flow enters the power cabin, the gas generating materials react to generate gas, and the gas enters the pneumatic cabin so as to drive the consolidation base material and the consolidation slurry to enter the injection assembly for mixing and then be sprayed to a cross optical cable position or a contact position of the optical cable and a bottom bed for solidification and positioning, so that abrasion damage generated by the submarine optical cable moving under the actions of tide, waves, internal waves and the like is prevented. The invention has simple and convenient implementation and low cost.
Description
Technical Field
The invention relates to the field of high-end equipment manufacturing of ocean engineering, in particular to in-situ first-aid repair equipment for preventing abrasion damage of an submarine optical cable.
Background
Submarine fiber optic cables are an important communication infrastructure. With the increase of the number of submarine cable projects, the situation of commonly occupying submarine space is increased, and the number of submarine cables to be crossed is also increased continuously. However, due to wave currents, tidal currents, internal waves and the like, the optical cable is subject to continuous motion friction on the seabed, and friction between the optical cable and the optical cable exists in the crossed optical cable. These rubs can cause abrasion to the outer surface of the cable, compromising the cable. In order to prevent abrasion damage, corresponding equipment needs to be developed to take measures of in-situ abrasion protection for the submarine optical cable.
The related research on construction equipment for the abrasion-proof protection of the submarine optical cable is found to be very few in the prior art. The protection method of the submarine cable of the cross section is summarized in the 'protection of submarine cable of the login section and the cross section' written by Liu Shuoqi, the national submarine cable communication technology seminar of the first, the China society of communication, pages 270-274 and 2006, and the research shows that in order to prevent the armored submarine cable with the steel wire on the outer layer from being damaged due to abrasion of the submarine cable without the armor, the cable with the steel wire on the outer layer cannot pass through the cable without the armor. The cross cables are correspondingly adjusted according to the cross cables to enable the two cable types to be corresponding, or flexible materials are bound on the cross cables near the cross points, so that the abrasion damage risk is reduced. But such field binding operations are obviously difficult.
There are only a few related patents at home and abroad, for example, patent document CN211183327U discloses a submarine cable landing section fixing device for fixing submarine cables, the submarine cable landing section fixing device comprises a base, a pressing cone and an outer cover, the base is fixedly connected with the ground, the submarine cables penetrate through the base, the part of the submarine cables located in the submarine cable landing section fixing device is stripped of an outer sheath, an armor steel wire at a corresponding position is cut and spread for a certain angle, the pressing cone surrounds the submarine cables, is inserted into the base, is fixedly connected with the base, and is jointly pressed with the base to fix the armor steel wire, the outer cover is arranged outside the pressing cone, the outer cover is fixedly connected with the base, and insulating waterproof sealant is filled into the outer cover. As further described in patent document US20050150679a, a wear resistant sheath for a flexible cable having a cable core, and a sheath made of a wear resistant thermoplastic material surrounding the cable core is disclosed. The sheath includes an inner extruded plastic layer and an outer sheath layer. Between the inner plastic layer and the outer jacket layer is a monofilament layer made of a chemically and thermally stable material with a visual coverage of 40% to 70%. The outer jacket layer is applied by pressure extrusion such that the space in the layer is almost filled with the material of the outer jacket layer and the layer adheres to the inner jacket layer. While these patents help to enhance the friction damage resistance of the crossover cable, in situ work equipment implemented in situ has heretofore been lacking. Accordingly, there is a need to develop field operation equipment that prevents abrasion damage to submarine fiber optic cables.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide in-situ first-aid repair equipment for preventing abrasion damage of an submarine optical cable.
The in-situ rush-repair equipment for preventing abrasion damage of the submarine optical cable comprises a shell and an injection assembly, wherein a push plate capable of sliding along the axial direction is arranged in the shell, one side of the push plate is provided with a pneumatic cabin, and the other side of the push plate is respectively provided with a first accommodating space, a second accommodating space and a power cabin;
The first accommodating space and the second accommodating space are respectively provided with a consolidation base material and a consolidation slurry, and are respectively connected with the injection assembly through a second conveying pipe and a third conveying pipe;
When the seawater with the controlled flow enters the power cabin, the gas generating materials are subjected to chemical reaction to generate gas, the gas enters the pneumatic cabin through the first conveying pipe, and the pushing plate can be driven to extrude the first accommodating space and the second accommodating space, so that the consolidation base material and the consolidation slurry are respectively mixed and sprayed out through the second conveying pipe and the third conveying pipe after entering the spraying component, and the second conveying pipe and the third conveying pipe pass through the power cabin.
Preferably, the spray assembly comprises a multi-wheel mixer, a spray barrel and a handle;
One end of the gun barrel is connected with the multi-wheel mixer, the other end of the gun barrel is an output end, the handle is arranged on the gun barrel, and the consolidation base material and the consolidation slurry output from the second conveying pipe and the third conveying pipe enter the multi-wheel mixer to be mixed.
Preferably, the multi-wheel mixer is a multi-gear structure manufactured by processing high-strength materials for thoroughly mixing the consolidation base with the consolidation slurry.
Preferably, the first check valve connected with the outside is arranged on the pneumatic cabin, and when the external pressure is higher than the pressure in the pneumatic cabin, the seawater can enter the pneumatic cabin through the first check valve.
Preferably, the power pod has a seawater injector thereon through which the flow of seawater into the power pod can be controlled.
Preferably, the seawater injector is a miniature plunger pump manufactured by processing high-strength materials.
Preferably, the outside of casing is provided with first kicking block, second kicking block respectively, first kicking block, second kicking block are by the firm block that the proportion is little of buoyancy material preparation, and can make the centre of buoyancy, centroid and the barycenter three coincidence of normal position rush-repair equipment.
Preferably, the shell, the pneumatic cabin, the push plate, the first one-way valve and the power cabin are all manufactured by adopting high-strength materials.
Preferably, the consolidation base material adopts non-magnetic iron powder; the consolidation slurry is polysulfone and polyethersulfone dissolved in dimethylformamide DMF.
Preferably, the gas generating material is calcium carbide, the calcium carbide is contained in a plurality of iron wire frames and is piled into the power cabin.
Preferably, the magnet-free powder is less than 100 mesh.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention utilizes gas producing material and on-site seawater to generate controllable chemical reaction, the produced gas forms compressed gas in a closed space as driving power, powder with high specific gravity and slurry solidified when meeting water are mixed together and sprayed to the crossed optical cable position or the contact position of the optical cable and the bottom bed, solidification and positioning are carried out, and the optical cable is prevented from moving under the actions of tide, wave, internal wave and the like, thereby avoiding damage caused by abrasion between the optical cables and between the optical cable and the bottom bed.
2. According to the invention, the principle that calcium carbide meets water gas is utilized, on one hand, seawater resources are fully utilized to produce gas to realize a thrust gas source, and on the other hand, the exothermic reaction between the calcium carbide and water is utilized, so that the solidification base material and solidification slurry can be heated, the mixing and the condensation of the solid-liquid slurry are facilitated, and the design is ingenious.
3. The invention has simple and convenient implementation and low cost, and is suitable for the abrasion-proof protection of the submarine optical cable in the wide sea area.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a multi-wheel mixer;
fig. 3 is a cross-sectional view of gear A-A of fig. 2.
The figure shows:
shell 1 spray gun tube 12
Handle 13 of pneumatic cabin 2
Second one-way valve 15 of push plate 3
First check valve 4 first accommodation space 21
Second accommodation space 22 of power cabin 5
First conveying pipe 101 for consolidation base material 6
Second conveying pipe 102 for consolidating slurry 7
Third conveying pipe 103 of seawater injector 8
First float block 141 of gas generating material 9
Second float block 142 of multi-wheel mixer 11
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
Example 1:
The invention provides in-situ rush-repair equipment for preventing abrasion damage of a submarine optical cable, which is shown in fig. 1, and comprises a shell 1 and an injection assembly, wherein a push plate 3 capable of sliding along the axial direction is arranged in the shell 1, one side of the push plate 3 is provided with a pneumatic cabin 2, the other side of the push plate 3 is respectively provided with a first accommodating space 21, a second accommodating space 22 and a power cabin 5, the power cabin 5 is internally provided with a gas generating material 9, the first accommodating space 21 and the second accommodating space 22 are respectively provided with a consolidation base material 6 and a consolidation slurry 7, and the first accommodating space 21 and the second accommodating space 22 are respectively connected with the injection assembly through a second conveying pipe 102 and a third conveying pipe 103 which are respectively arranged.
Further, when the seawater with controlled flow rate enters the power cabin 5, the gas generating material 9 is subjected to chemical reaction to generate gas, and the gas enters the pneumatic cabin 2 through the first conveying pipe 101, so that the push plate 3 can be driven to extrude the first accommodating space 21 and the second accommodating space 22, the consolidation base material 6 and the consolidation slurry 7 are respectively mixed and sprayed into the spraying assembly through the second conveying pipe 102 and the third conveying pipe 103, and are sprayed to the cross optical cable position or the contact position of the optical cable and the bottom bed to solidify and position the optical cable, and abrasion damage caused by movement of the submarine optical cable under the actions of tide, waves, internal waves and the like is prevented. The first conveying pipe 101 is provided with a second one-way valve 15, the second one-way valve 15 only allows gas to enter the pneumatic cabin 2 from the power cabin 5 and does not allow reverse flow, the second conveying pipe 102 and the third conveying pipe 103 pass through the power cabin 5, the gas generating material 9 is preferably calcium carbide, and when seawater enters the power cabin 5, the calcium carbide and water in the power cabin 5 undergo the following chemical reactions:
CaC2+2H2O＝Ca(OH)2+C2H2↑
Meanwhile, a large amount of heat is released by the reaction, and the released heat can heat the second conveying pipe 102 and the third conveying pipe 103 passing through the power cabin 5, so that the consolidation base material 6 and the consolidation slurry 7 are well mixed.
Specifically, the spraying assembly comprises a multi-wheel mixer 11, a spray gun pipe 12 and a handle 13, one end of the spray gun pipe 12 is connected with the multi-wheel mixer 11, the other end of the spray gun pipe 12 is an output end, the handle 13 is arranged on the spray gun pipe 12, and the consolidation base material 6 and the consolidation slurry 7 output from the second conveying pipe 102 and the third conveying pipe 103 enter the multi-wheel mixer 11 to be mixed.
The invention fully utilizes the submarine field resources, obviously increases the convenience of using in-situ rush-repair equipment, effectively reduces the implementation cost, can effectively prevent the abrasion damage between the optical cables and the bottom bed, and is suitable for the abrasion-proof protection of the submarine optical cables in wide sea areas.
In practical application, the multi-wheel mixer 11 is a multi-gear structure manufactured by processing high-strength titanium alloy materials, and is used for fully mixing the consolidation base material 6 and the consolidation slurry 7, and the fully mixed solid-liquid slurry is sprayed out through the spray gun tube 12.
The power cabin 5 is provided with a seawater injector 8, and the seawater injector 8 is a miniature plunger pump manufactured by processing high-strength titanium alloy materials. The flow rate of the seawater entering the power cabin 5 can be controlled through the seawater injector 8, so that the gas production speed can be controlled, the pushing speed of the push plate 3 can be controlled, and finally the solid-liquid slurry is sprayed out.
The air chamber 2 is provided with a first one-way valve 4 connected with the outside, and when the outside pressure is higher than the pressure of the air chamber 2, seawater can enter the air chamber 2 through the first one-way valve 4 to balance the pressure inside and outside the shell 1.
The outside of casing 1 is provided with first floating block 141, second floating block 142 respectively, and first floating block 141, second floating block 142 are by the firm block of buoyancy material preparation low proportion, can make the centre of buoyancy, centroid and the coincidence of barycenter three of normal position rush-repair equipment.
The shell 1, the pneumatic cabin 2, the push plate 3, the first one-way valve 4 and the power cabin 5 are all manufactured by adopting high-strength titanium alloy materials. The high-strength titanium alloy refers to a titanium alloy with the room-temperature tensile strength of 1100-1400 MPa.
Example 2:
This embodiment is a preferable example of embodiment 1.
This embodiment describes the invention in detail with reference to a specific embodiment in which abrasion protection against crossing segments of three optical cables on the 1000m submarine is developed.
The housing 1 is a cylindrical pressure-resistant housing of 1m diameter and 2m length manufactured by processing high-strength titanium alloy materials, and is used for providing a mounting platform and a containing space for each part of the whole equipment.
The pneumatic cabin 2 is a cylindrical cavity which is manufactured by high-strength titanium alloy materials and is arranged in the shell 1, the shell 1 is divided into an upper cabin and a lower cabin by a flexible partition board, the upper cabin and the lower cabin are respectively provided with a second accommodating space 22 and a first accommodating space 21, the lower cabin and the upper cabin are respectively used for storing the consolidation base material 6 and the consolidation slurry 7 and providing cabins with variable volumes, the upper cabin and the lower cabin are made of flexible capsules, and then the lower cabin and the upper cabin can be extruded when the push plate 3 is pushed, so that the consolidation base material 6 and the consolidation slurry 7 can be extruded.
The upper cabin and the lower cabin in the shell 1 can be separated by a high-strength plane partition plate, the push plate 3 can be made into a split structure and respectively matched with corresponding channels of the upper cabin and the lower cabin, and the conveying of the consolidation base material 6 and the consolidation slurry 7 can be realized.
The pushing plate 3 is a circular plate manufactured by processing high-strength titanium alloy materials and is matched with the pneumatic cabin 2, and the pushing plate 3 has the function of extruding the consolidation base material 6 and the consolidation slurry 7 when the gas pressure output from the power cabin 5 acts on the pushing plate 3, and rapidly pressing the consolidation base material 6 and the consolidation slurry 7 into the multi-wheel mixer 11 to be mixed and sprayed.
The first check valve 4 is made of high-strength titanium alloy material, and the first check valve 4 is used for preventing the reverse flow of fluid in the pneumatic cabin 2 and flowing out of the shell 1 from the first check valve 4, and allowing the forward flow of seawater into the pneumatic cabin 2 to balance the internal and external water pressure difference.
The power cabin 5 is a cylindrical closed cabin manufactured by processing high-strength titanium alloy materials, and the power cabin 5 is used for storing the gas generating materials 9 and providing a place for the rapid reaction of seawater and the gas generating materials 9.
The consolidation base material 6 is 100 meshes of non-magnetic iron powder, and the consolidation base material 6 is used for being fused with the consolidation slurry 7 to form liquid-solid slurry with the specific gravity of 3.5 tons per cubic meter.
The consolidation slurry 7 is polysulfone and polyethersulfone dissolved in Dimethylformamide (DMF), the consolidation slurry 7 is quickly solidified in water, and the consolidation slurry 7 is used for being fused with the consolidation base material 6 to form liquid-solid slurry with the specific gravity of 3.5 tons per cubic meter.
The seawater injector 8 is a miniature plunger pump manufactured by processing high-strength titanium alloy materials, and the miniature plunger pump realizes the suction of seawater and the pressurized water delivery by the change of the volume of a sealed working cavity by the reciprocating motion of a plunger in a cylinder body. The miniature plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like. The maximum flow rate of the miniature plunger pump is 10 liters/min, the miniature plunger pump is used for injecting seawater into the power cabin 5, providing raw materials for chemical reaction of the gas generating material 9, and realizing the flow rate sprayed by the gun barrel 12 by controlling the flow rate of the injected seawater.
The gas generating material 9 is calcium carbide (CaC 2), the calcium carbide processed into spheres is contained in a plurality of iron wire frames, the iron wire frames are piled up in the power cabin 5, the diameter of the calcium carbide is 2cm, the calcium carbide is contained in the iron wire frames with the side length of 2.5cm, the calcium carbide is used for carrying out chemical reaction with seawater to generate a large amount of gas, gaps are formed between the adjacent iron wire frames, so that the water flow is facilitated, the transportation of generated acetylene is facilitated, and the generated acetylene is used for improving the power for transporting, mixing and solidifying the base material 6 and the solidifying slurry 7.
The first conveying pipe 101 is a pressure-resistant pipeline manufactured by processing high-strength titanium alloy materials, and the first conveying pipe 101 is used for conveying acetylene gas after calcium carbide and water react from the power cabin 5 to the pneumatic cabin 2.
The second conveying pipe 102 is a pressure-resistant pipeline manufactured by processing high-strength titanium alloy materials, and the second conveying pipe 102 is used for conveying the solidification base 6 into the multi-wheel mixer 11 to be mixed with the solidification slurry 7.
The third conveying pipe 103 is a pressure-resistant pipeline manufactured by processing high-strength titanium alloy materials, and the third conveying pipe 103 is used for conveying the solidification slurry 7 into the multi-wheel mixer 11 to be mixed with the solidification base material 6.
The multi-wheel mixer 11 is a multi-gear structure manufactured by processing a high strength titanium alloy material, as shown in fig. 2, and fig. 3 is a cross-sectional view of 3 multi-gears therein, and the multi-wheel mixer 11 functions to thoroughly mix the consolidation base 6 with the consolidation slurry 7.
The lance tube 12 is a pipe manufactured by processing a high-strength titanium alloy material, the inner pipe diameter is 50mm, and the lance tube 12 is used for conveying liquid-solid slurry.
The handle 13 is a member manufactured from a high strength titanium alloy material, and the handle 13 functions to facilitate movement of an ROV (remotely operated vehicle) or a diver holding the gun barrel 12.
The first floating block 141 and the second floating block 142 are solid blocks made of buoyancy materials, which are made of epoxy resin serving as an adhesive and are filled with hollow glass beads and other additives in a large amount, the density of the materials is 0.30g/cm 3, the water absorption rate is 2%, the mechanical compression strength is 60MPa, the first floating block 141 and the second floating block 142 serve as buoyancy for equipment, the underwater specific gravity of the whole equipment is 1.05 tons per cubic meter, and the floating center, the centroid and the mass center of the equipment are overlapped.
The working principle of the invention is as follows:
as the ROV carries in-situ repair equipment to sink into the sea, the pressure of the external water body of the equipment to the equipment is gradually increased, and when the external water pressure of the equipment is greater than the internal pressure of the equipment, external seawater enters the pneumatic cabin 2 through the first one-way valve 4, so that the pressure inside and outside the equipment is balanced.
When the equipment works, the seawater injector 8 injects seawater into the power cabin 5 in the shell 1 under the action of the ROV manipulator, the seawater and calcium carbide in the power cabin 5 react violently, a large amount of gas is produced rapidly, and a large amount of heat is emitted simultaneously.
The flow rate of the seawater entering the power cabin 5 is regulated through the seawater injector 8, the reaction speed of the seawater and the calcium carbide is controlled, the larger the flow rate of the seawater entering the power cabin 5 is, the larger the thrust of the push plate 3 is, the higher the hot liquid speed sprayed by the spray gun tube 12 is, and the larger the spraying flow rate is. When the seawater intake flow rate is 0, the injection is stopped later. The generated gas enters the pneumatic cabin 2 through the first conveying pipe 101, and along with the increase of the air pressure in the pneumatic cabin 2, the gas pushes the push plate 3 to move towards the first accommodating space 21 and the second accommodating space 22 and simultaneously extrudes the solidification base material 6 and the solidification slurry 7, so that the solidification base material 6 and the solidification slurry 7 enter the multi-wheel mixer 11 through the second conveying pipe 102 and the third conveying pipe 103 respectively.
The heat released by the reaction of the calcium carbide and the water heats the consolidation base material 6 and the consolidation slurry 7 in the second conveying pipe 102 and the third conveying pipe 103 respectively, and the fluidity of the consolidation base material and the consolidation slurry is increased. The rotation of the wheel in the multi-wheel mixer 11, driven by the fluid, thoroughly mixes the solidification matrix 6 and the consolidation slurry 7 into a hot liquid-solid slurry. The robotic arm of the ROV lifts the handle 13 on the barrel 12 to the vicinity of the cable to be secured and the liquid-solid slurry from the multi-wheel mixer 11 is ejected through the barrel 12 onto the cable at the crossover section.
In order to increase the total amount of liquid-solid slurry and facilitate construction, a first floating block 141 and a second floating block 142 are arranged on the shell 1, so that the weight of the whole equipment under water is slightly larger than that of seawater, the floating center and the centroid are coincident, and the floating state in water is good. The sprayed liquid-solid slurry is rapidly cooled under the action of seawater to solidify the optical cable and the bed together, or to solidify the crossed optical cable together, thereby effectively preventing the optical cable from moving under the action of tide, wave or internal wave, etc., and further avoiding the abrasion of the optical cable and the seabed and the damage to the optical cable caused by the mutual friction between the crossed optical cable.
The invention fully utilizes the in-situ seawater resource, fixes the optical cable on the seabed, or concretes the cross optical cable together, so that the cross optical cable cannot move under the actions of tide, wave or internal wave, and the like, and has no friction between the optical cable and the seabed and between the cross optical cable, thereby avoiding the abrasion damage of the submarine optical cable. The invention has simple and convenient implementation and low cost, and is suitable for the abrasion-proof protection of the submarine optical cable in the wide sea area.
In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. The in-situ rush-repair equipment for preventing abrasion damage of the submarine optical cable is characterized by comprising a shell (1) and an injection assembly, wherein a push plate (3) capable of sliding along the axial direction is arranged in the shell (1), one side of the push plate (3) is provided with a pneumatic cabin (2), and the other side of the push plate (3) is respectively provided with a first accommodating space (21), a second accommodating space (22) and a power cabin (5);
the power cabin (5) is internally provided with a gas generating material (9), the first accommodating space (21) and the second accommodating space (22) are respectively provided with a consolidation base material (6) and a consolidation slurry (7), and the first accommodating space (21) and the second accommodating space (22) are respectively connected with the injection assembly through a second conveying pipe (102) and a third conveying pipe (103) which are respectively arranged;
When the seawater with controlled flow enters the power cabin (5), the gas generating material (9) is subjected to chemical reaction to generate gas, and the gas enters the pneumatic cabin (2) through the first conveying pipe (101), so that the pushing plate (3) can be driven to extrude the first accommodating space (21) and the second accommodating space (22), and the consolidation base material (6) and the consolidation slurry (7) are respectively introduced into the injection assembly through the second conveying pipe (102) and the third conveying pipe (103) to be mixed and then sprayed out, wherein the second conveying pipe (102) and the third conveying pipe (103) are respectively arranged in the power cabin (5).
2. The in situ first aid repair installation for preventing abrasive damage to submarine cable according to claim 1, wherein the jetting assembly comprises a multi-wheel mixer (11), a lance tube (12) and a handle (13);
One end of the spray gun pipe (12) is connected with the multi-wheel mixer (11), the other end of the spray gun pipe (12) is an output end, the handle (13) is arranged on the spray gun pipe (12), and the consolidation base material (6) and the consolidation slurry (7) output from the second conveying pipe (102) and the third conveying pipe (103) enter the multi-wheel mixer (11) to be mixed.
3. The in-situ rush repair equipment for preventing abrasion damage to submarine optical cables according to claim 2 wherein the multi-wheel mixer (11) is a multi-gear structure manufactured from high strength materials for thoroughly mixing the consolidation base (6) with the consolidation slurry (7).
4. The in-situ rush repair equipment for preventing abrasion damage of a submarine optical cable according to claim 1, wherein the pneumatic cabin (2) is provided with a first one-way valve (4) connected with the outside, and when the outside pressure is higher than the pressure of the pneumatic cabin (2), seawater can enter the pneumatic cabin (2) through the first one-way valve (4).
5. The in-situ rush repair equipment for preventing abrasion damage of a submarine cable according to claim 1, wherein a seawater injector (8) is arranged on the power pod (5), and the flow of seawater into the power pod (5) can be controlled through the seawater injector (8).
6. The in-situ repair equipment for preventing abrasion damage of submarine optical cables according to claim 5, wherein the seawater injector (8) is a miniature plunger pump manufactured by processing high-strength alloy materials.
7. The in-situ first-aid repair equipment for preventing abrasion damage of submarine optical cables according to claim 1, wherein a first floating block (141) and a second floating block (142) are respectively arranged outside the shell (1), the first floating block (141) and the second floating block (142) are solid blocks made of buoyancy materials, and the floating center, the centroid and the mass center of the in-situ first-aid repair equipment can be overlapped.
8. The in-situ first-aid repair equipment for preventing abrasion damage of submarine optical cables according to claim 4, wherein the shell (1), the pneumatic cabin (2), the push plate (3), the first one-way valve (4) and the power cabin (5) are all manufactured by adopting high-strength alloy materials.
9. The in-situ first-aid repair equipment for preventing abrasion damage of submarine optical cables according to claim 1, wherein the consolidation base (6) is made of non-magnetic iron powder; the consolidation slurry (7) is polysulfone and polyethersulfone dissolved in Dimethylformamide (DMF);
The gas generating material (9) is calcium carbide, the calcium carbide is contained in a plurality of iron wire frames and is piled into the power cabin (5).
10. The in-situ first-aid repair kit for preventing abrasion damage to submarine optical cables according to claim 9, wherein the non-magnetite powder is less than 100 mesh.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111222333.5A CN113917636B (en) | 2021-10-20 | 2021-10-20 | In-situ rush-repair equipment for preventing abrasion damage of submarine optical cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111222333.5A CN113917636B (en) | 2021-10-20 | 2021-10-20 | In-situ rush-repair equipment for preventing abrasion damage of submarine optical cable |
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| CN113917636B true CN113917636B (en) | 2024-06-21 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513125A (en) * | 2001-06-04 | 2004-07-14 | 皮雷利＆C・有限公司 | Optical cable provided with mechanically resistant covering |
| CN109842085A (en) * | 2019-03-22 | 2019-06-04 | 中国科学院声学研究所 | A kind of pressure balance type seabed master base station photoelectric separating apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1175835B (en) * | 1984-04-19 | 1987-07-15 | Pirelli Cavi Spa | SUBMARINE CABLE FOR FIBER OPTIC TELECOMMUNICATIONS |
| IT1184322B (en) * | 1985-02-26 | 1987-10-28 | Pirelli Cavi Spa | SUBMARINE CABLE FOR FIBER OPTIC TELECOMMUNICATIONS |
| CN100447604C (en) * | 2003-06-16 | 2008-12-31 | 中英海底系统有限公司 | Deep-sea bottom optical cable end moulded sealing mode and system |
-
2021
- 2021-10-20 CN CN202111222333.5A patent/CN113917636B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513125A (en) * | 2001-06-04 | 2004-07-14 | 皮雷利＆C・有限公司 | Optical cable provided with mechanically resistant covering |
| CN109842085A (en) * | 2019-03-22 | 2019-06-04 | 中国科学院声学研究所 | A kind of pressure balance type seabed master base station photoelectric separating apparatus |
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| CN113917636A (en) | 2022-01-11 |
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