Submarine cable insulation breakdown fault positioning and detecting device

Abstract

The utility model relates to a submarine cable insulation breakdown fault positioning detection device, which belongs to the technical field of cable detection equipment and comprises a detection ship, and spread spectrum time domain reflectometers are fixedly mounted at two ends of the bottom of the detection ship. The beneficial effects of the utility model lie in that through the arrangement of the detection ship, the condition of the submarine cable can be monitored for 24 hours, the rotation and advancing speed of the ship propeller can be controlled through the controller, and through the effect of the spread spectrum time domain reflectometer and by using the time domain reflection principle, a whole set of signals is firstly received and transmitted, and then the signal is transmitted and received. When the submarine cable has an insulation breakdown fault, the fracture position reflects the signal, and the recovered reflected signal is compared with the signal shape and time calculated by an applied mathematical algorithm in the processor, so that the specific position of the submarine cable fault can be positioned. And the signal is sent back to a control center on the land through the wireless signal transceiver, so that a worker can judge the signal.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable detection equipment technical field especially relates to a submarine cable insulation breakdown fault positioning detection device. BACKGROUND

[0002] In recent years, with the development of China's marine economy, the demand for submarine power cable of island power supply increases dramatically, and the island and marine power transmission project puts forward higher requirements for power supply reliability, but due to the poor sea conditions near the sea and the frequent marine fishing activities, the submarine cable is often damaged, and for a long time, due to the lack of reliable intelligent inspection equipment, the submarine cable damage caused by external force damage, chemical corrosion, cable aging and other reasons cannot be found in time, and the subsequent repair work is very difficult.

[0003] But the above device still has some shortcomings in actual use, and the more obvious one is that when the submarine cable insulation breakdown fault occurs, the fault point or path of the cable is generally located first, and then the staff on the maintenance ship is repaired, and because the maintenance ship is small, the maintenance tools are not much, and the corresponding maintenance tools cannot be carried according to the fault reason, and the current fault point positioning is not accurate, and the fault reason or fault scene cannot be transmitted to the control center for the maintenance personnel to judge. UTILITY MODEL CONTENT

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a submarine cable insulation breakdown fault positioning detection device.

[0005] The technical scheme of the utility model is as follows: a submarine cable insulation breakdown fault positioning detection device, comprising a detection ship, both ends of the bottom of the detection ship are fixedly installed with a spread spectrum time domain reflectometer, the top of the detection ship is fixedly connected with a protection box, the inner wall of the protection box is fixedly installed with a processor, the inside of the protection box and one side of the processor are fixedly installed with a wireless signal transceiver, the inside of the protection box is fixedly installed with a controller, both sides of the detection ship are fixedly connected with a turbine pipe, and the inside of the turbine pipe is fixedly installed with a marine thruster at equal intervals.

[0006] Through the setting of the detection ship, the submarine cable condition can be monitored for twenty-four hours, the marine thruster is arranged outside the detection ship, the submarine cable path can be transmitted to the processor in advance, the rotation and advancing speed of the marine thruster are controlled through the controller, the time domain reflection principle is used through the action of the spread spectrum time domain reflectometer, a complete set of signals are received and transmitted first, when the submarine cable insulation breakdown fault occurs, the broken position will reflect the signal, and the recovered reflection signal is compared with the signal shape and time calculated by the application mathematical algorithm in the processor, so that the specific position of the submarine cable fault can be located.

[0007] As a preferred implementation form, the top of the detection ship is provided with a salvaging mechanism, the salvaging mechanism comprises supports fixedly connected at two ends of the top of the detection ship, a winding roller is rotatably installed between the two supports, a steel cable is wound outside the winding roller, and a deepwater grab is fixedly connected to one end of the steel cable.

[0008] By adopting the above technical scheme, the high-definition camera in the steering mechanism can take pictures of the salvaged fault cable section and send them back to the control center.

[0009] As a preferred implementation form, the top of the detection ship is provided with a steering mechanism, the steering mechanism comprises two rotating columns rotatably installed at two ends of the top of the detection ship, high-definition cameras are fixedly installed outside the rotating columns, and driven gears are fixedly connected outside the rotating columns.

[0010] By adopting the above technical scheme, the rotation of the driving gears can drive the rotation of the driven gears, so as to adjust the orientation of the rotating columns and the high-definition cameras.

[0011] As a preferred implementation form, the steering mechanism further comprises two servo motors fixedly installed at two ends of the top of the detection ship, output shafts of the two servo motors are fixedly connected with driving gears, and the driving gears are meshingly connected with corresponding driven gears.

[0012] By adopting the above technical scheme, the rotation of the output shafts of the two servo motors can drive the rotation of the driving gears.

[0013] As a preferred implementation form, the top of the detection ship is provided with an electricity storage mechanism, the electricity storage mechanism comprises two T-shaped plates fixedly connected at two ends of the top of the detection ship, solar panels are arranged on both sides of the T-shaped plates, a battery pack is fixedly installed inside the detection ship, and an inverter is fixedly installed inside the detection ship and on one side of the battery pack.

[0014] By adopting the above technical scheme, the solar panels can absorb light energy, and then the inverter can convert direct current into alternating current and store it inside the battery pack.

[0015] As a preferred implementation form, an output shaft of a servo motor is fixedly connected with a central shaft of the winding roller.

[0016] By adopting the above technical scheme, the rotation of the output shaft of the servo motor can drive the rotation of the winding roller.

[0017] As a preferred implementation form, the outer side of the protection box is hingedly connected with a sealing plate, the outer side of the sealing plate is fixedly connected with a handle, and the inside of the detection ship is provided with a through hole matched with the deepwater grab.

[0018] By adopting the above technical scheme, the processor and the wireless signal transceiver inside the protection box can be effectively protected.

[0019] As a preferred implementation form, the two sides of the T-shaped plate are fixedly connected with two fixed blocks, the two fixed blocks are rotatably connected with rotating shafts, the solar panels are fixedly connected with the corresponding rotating shafts, one end of each rotating shaft is threadedly connected with a locking nut, and the locking nut abuts against one of the fixed blocks.

[0020] By adopting the above technical scheme, the position of the rotating shaft can be fixed by the locking nut, and the rotating angle of the solar panel can be adjusted.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are that,

[0022] 1. In the utility model, the submarine cable condition can be monitored for 24 hours through the detection ship, the ship propeller is arranged outside the detection ship, the submarine cable path can be transmitted to the processor in advance, the rotating speed and the advancing speed of the ship propeller are controlled through the controller, the time domain reflection principle is used through the action of the spread spectrum time domain reflectometer, a complete set of signals are transmitted and received first, when the submarine optical cable has insulation breakdown failure, the broken position will reflect the signals, the reflected signals are compared with the signal shape and time calculated through the application mathematical algorithm in the processor, so that the specific position of the submarine cable failure can be located, and the signals are sent back to the control center on land through the wireless signal transceiver, so that the staff can make judgments.

[0023] 2. In the utility model, the steel cable can be unwound through the rotation of the winding roller, so that the deepwater grab can be deep into the submarine to pull out the fault cable section, at this time, the high-definition camera in the steering mechanism takes a photo of the pulled out fault cable section and sends it back to the control center, at this moment, the staff can select the corresponding maintenance equipment according to the on-site photos, so that the practicability of the device can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A perspective view of the submarine cable insulation breakdown fault positioning detection device is provided.

[0025] Figure 2 A bottom view of the submarine cable insulation breakdown fault positioning detection device is provided.

[0026] Figure 3 The utility model provides a kind of internal structure schematic view of submarine cable insulation breakdown fault positioning detection device is provided;

[0027] Figure 4 The utility model provides a kind of rear view of submarine cable insulation breakdown fault positioning detection device.

[0028] Legend: 1, detection ship;2, turbine pipe;3, marine thruster;4, support;5, winding roller;6, cable;7, servo motor one;8, protection box;9, rotating column;10, high-definition camera;11, driven gear;12, servo motor two;13, driving gear;14, deepwater grab;15, spread spectrum time domain reflectometer;16, T-shaped plate;17, solar panel;18, processor;19, wireless signal transceiver;20, battery pack;21, inverter. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] REFERENCE Figures 1-4 A submarine cable insulation breakdown fault positioning detection device, including detection ship 1, the both ends of the bottom of detection ship 1 are fixedly installed with spread spectrum time domain reflectometer 15, the top of detection ship 1 is fixedly connected with protection box 8, the inner wall of protection box 8 is fixedly installed with processor 18, the inside of protection box 8 and located at the side of processor 18 are fixedly installed with wireless signal transceiver 19, the inside of protection box 8 is fixedly installed with controller, the both sides of detection ship 1 are fixedly connected with turbine pipe 2, the inside of turbine pipe 2 is equidistantly fixedly installed with marine thruster 3, by the setting of detection ship 1, the submarine cable condition can be monitored for twenty-four hours, and the marine thruster 3 is arranged outside detection ship 1, the submarine cable path can be transmitted to processor 18 in advance, and the rotation and advancing speed of marine thruster 3 are controlled by controller, and by the action of spread spectrum time domain reflectometer 15, the time domain reflection principle is used, a complete set of signals is first transmitted and received, when submarine cable insulation breakdown fault occurs, the broken position will reflect the signal, and the recovered reflected signal is compared with the signal shape and time calculated by the application mathematical algorithm in processor 18, so that the specific position of submarine cable fault can be located, and the signal is sent back to the control center on land by wireless signal transceiver 19, for staff to judge.

[0031] REFERENCEFigure 2 The top of the detection ship 1 is provided with a salvage mechanism, the salvage mechanism comprises supports 4 fixedly connected at both ends of the top of the detection ship 1, a winding roller 5 is rotatably installed between the two supports 4, a steel cable 6 is wound outside the winding roller 5, one end of the steel cable 6 is fixedly connected with a deepwater grab 14, through the rotation of the winding roller 5, the steel cable 6 can be unwound, and then the deepwater grab 14 can be deep into the seabed to salvage the fault cable section, at this time, the salvaged fault cable section is photographed by the high-definition camera 10 in the steering mechanism and sent back to the control center, at this moment, the staff can select the corresponding maintenance equipment according to the on-site photos, and then the practicability of the device can be improved.

[0032] With reference to Figure 1 The top of the detection ship 1 is provided with a steering mechanism, the steering mechanism comprises two ends of the steering column 9 rotatably installed at the top of the detection ship 1, the outer side of the steering column 9 is fixedly installed with a high-definition camera 10, the outer side of the steering column 9 is fixedly connected with a driven gear 11, through the rotation of the driving gear 13, the rotation of the driven gear 11 can be driven, so that the orientation of the steering column 9 and the high-definition camera 10 can be adjusted, so that each of the two high-definition cameras 10 can shoot a maximum of one hundred and eighty degrees of on-site photos, and then the shooting range of the high-definition camera 10 can be improved.

[0033] With reference to Figure 1 The steering mechanism further comprises a servo motor two 12 fixedly installed at both ends of the top of the detection ship 1, the output shaft of the servo motor two 12 is fixedly connected with a driving gear 13, and the driving gear 13 is in meshing connection with the corresponding driven gear 11, through the rotation of the output shaft of the servo motor two 12, the driving gear 13 can be driven to rotate, so that the power transmission can be realized.

[0034] With reference to Figure 3 The top of the detection ship 1 is provided with a power storage mechanism, the power storage mechanism comprises T-shaped plates 16 fixedly connected at both ends of the top of the detection ship 1, and the two sides of the T-shaped plate 16 are provided with solar panels 17, the inside of the detection ship 1 is fixedly installed with a battery pack 20, and the inside of the detection ship 1 and one side of the battery pack 20 are fixedly installed with an inverter 21, the light energy can be absorbed through the solar panels 17, and then the direct current is converted into alternating current through the inverter 21 and stored in the inside of the battery pack 20, so as to be used by the electrical equipment on the detection ship 1, and then the utilization of natural resources can be improved.

[0035] With reference to Figure 1 The outer side of one of the supports 4 is fixedly installed with a servo motor one 7, the output shaft of the servo motor one 7 is fixedly connected with the central shaft of the winding roller 5, through the rotation of the output shaft of the servo motor one 7, the winding roller 5 can be driven to rotate.

[0036] With reference toFigure 2 The outer side of the protection box 8 is hingedly connected with a sealing plate, the outer side of the sealing plate is fixedly connected with a handle, and the inside of the detection ship 1 is provided with a through hole matched with the deepwater grab bucket 14 for use, and the setting of the protection box 8 can play an important protection role on the internal processor 18 and the wireless signal transceiver 19.

[0037] With reference to Figure 4 Both sides of the T-shaped plate 16 are fixedly connected with two fixed blocks, the two fixed blocks are rotatably connected with shafts, the solar panels 17 are fixedly connected with the corresponding shafts, one end of the shaft is threadedly connected with a locking nut, the locking nut abuts against one of the fixed blocks, the position of the shaft can be fixed through the locking nut, and then the rotation angle of the solar panel 17 can be adjusted.

[0038] Working principle: first, through the setting of the detection ship 1, the submarine cable condition can be monitored for twenty-four hours, the ship propeller 3 is arranged outside the detection ship 1, the submarine cable path can be transmitted to the processor 18 in advance, the rotation and advancing speed of the ship propeller 3 are controlled through the controller, and through the action of the spread spectrum time domain reflectometer 15, the time domain reflection principle is used, a complete set of signals are first transmitted and received, when the submarine optical cable occurs insulation breakdown fault, the broken position will reflect the signal, and the received reflected signal is compared with the signal shape and time calculated by the application mathematical algorithm in the processor 18, so that the specific position of the submarine cable fault can be located, and the signal is sent back to the control center on land through the wireless signal transceiver 19, for the staff to judge;

[0039] Then, the servo motor one 7 can be remotely controlled to start, through the rotation of the winding roller 5, the steel cable 6 can be unwound, so that the deepwater grab bucket 14 can be deep into the submarine to pull out the fault cable section, at this time, through the rotation of the driving gear 13, the rotation of the driven gear 11 can be driven, so that the direction of the rotating column 9 and the high-definition camera 10 can be adjusted, so that the shooting range of the high-definition camera 10 can be improved, the fault cable section pulled out is photographed by the high-definition camera 10 in the steering mechanism and sent back to the control center, and the staff can select the corresponding maintenance equipment according to the on-site photos, so that the practicability of the device can be improved.

[0040] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation" "is provided with" "connection" and the like, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integral connection;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication, for the ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0041] The above is only the preferred embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features therein, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A subsea cable insulation breakdown fault location detection apparatus comprising a detection vessel (1) characterised in that: The both ends of the bottom of the detection ship (1) are fixedly installed with spread spectrum time domain reflectometry (15), the top of the detection ship (1) is fixedly connected with a protection box (8), the inner wall of the protection box (8) is fixedly installed with a processor (18), the inside of the protection box (8) and on one side of the processor (18) is fixedly installed with a wireless signal transceiver (19), the inside of the protection box (8) is fixedly installed with a controller, the both sides of the detection ship (1) are fixedly connected with a turbine pipe (2), the inside of the turbine pipe (2) is equidistantly fixedly installed with a ship propeller (3).

2. An apparatus for detecting insulation breakdown fault location of a submarine cable according to claim 1, characterized in that: The top of the detection ship (1) is provided with a salvage mechanism, the salvage mechanism comprises two supports (4) fixedly connected to the top of the detection ship (1), a winding roller (5) rotatably installed between the two supports (4), a steel cable (6) wound on the outside of the winding roller (5), and a deepwater grab (14) fixedly connected to one end of the steel cable (6).

3. A device for detecting and locating insulation breakdown faults in a subsea cable according to claim 1, characterised in that: The top of the detection ship (1) is provided with a steering mechanism, the steering mechanism comprises two rotating columns (9) rotatably installed at the top of the detection ship (1), a high-definition camera (10) fixedly installed on the outside of each rotating column (9), and a driven gear (11) fixedly connected to the outside of each rotating column (9).

4. An apparatus for detecting and locating insulation breakdown faults in a subsea cable according to claim 3, characterised in that: The steering mechanism further comprises two servo motors (12) fixedly installed at the top of the detection ship (1), an output shaft of each servo motor (12) is fixedly connected with a driving gear (13), and each driving gear (13) is meshingly connected with a corresponding driven gear (11).

5. An apparatus for detecting and locating insulation breakdown faults in a submarine cable according to claim 1, characterized in that: The top of the detection ship (1) is provided with an electricity storage mechanism, the electricity storage mechanism comprises two T-shaped plates (16) fixedly connected to the top of the detection ship (1), a solar panel (17) arranged on the both sides of each T-shaped plate (16), a storage battery (20) fixedly installed in the detection ship (1), and an inverter (21) fixedly installed in the detection ship (1) and on one side of the storage battery (20).

6. An apparatus for detecting and locating insulation breakdown faults in a submarine cable according to claim 2, characterized in that: An output shaft of a servo motor (7) fixedly installed on the outside of one of the supports (4) is fixedly connected with a central shaft of the winding roller (5).

7. An apparatus for detecting and locating insulation breakdown faults in a submarine cable according to claim 1, characterized in that: The outside of the protection box (8) is hingedly connected with a sealing plate, the outside of the sealing plate is fixedly connected with a handle, and the inside of the detection ship (1) is provided with a through hole matched with the deepwater grab (14).

8. An apparatus for detecting and locating insulation breakdown faults in a subsea cable according to claim 5, characterised in that: The both sides of each T-shaped plate (16) are fixedly connected with two fixed blocks, a rotating shaft is rotatably connected between the two fixed blocks, the solar panel (17) is fixedly connected with the corresponding rotating shaft, one end of the rotating shaft is threadedly connected with a locking nut, and the locking nut abuts against one of the fixed blocks.

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