阅读说明：本技术 一种适合波浪能发电装置的零重力海底电缆 (Zero-gravity submarine cable suitable for wave power generation device ) 是由 吴清 郑耀东 胡玉峰 邢涛 张小店 洪同庆 方兵 于 2020-06-05 设计创作，主要内容包括：本发明提供一种适合波浪能发电装置的零重力海底电缆,包括电缆保护层、芯线、浮力囊、破损检测机构以及主控台,破损检测机构包括第一金属触头、第二金属触头、电磁铁以及金属杆,将浮力囊设置在电缆保护层外表面后,在浮力囊的浮力作用下,电缆可以在海水中漂浮,防止沉入海底被海底砂石摩擦损坏,当其中某一个浮力囊发生破损时,海水进入到浮力囊中,使第一金属触头和第二金属触头建立电连接关系,电磁铁获得芯线传输的电能后带有磁性,并吸引金属杆移动,金属杆移动过程中使触发按钮被触发,触发按钮发送电信号给主控台,从而主控台可以根据接收的电信号定位破损的浮力囊位置,方便工作人员进行维修和维护。(The invention provides a zero-gravity submarine cable suitable for a wave power generation device, which comprises a cable protective layer, a core wire, a buoyancy bag, a damage detection mechanism and a main control console, wherein the damage detection mechanism comprises a first metal contact, a second metal contact, an electromagnet and a metal rod, the cable can float in seawater under the buoyancy action of the buoyancy bag after the buoyancy bag is arranged on the outer surface of the cable protective layer, the cable is prevented from sinking into the seabed and being damaged by friction of submarine gravels, when one of the buoyancy bags is damaged, the seawater enters the buoyancy bag, so that the first metal contact and the second metal contact are electrically connected, the electromagnet obtains electric energy transmitted by the core wire and then has magnetism, the metal rod is attracted to move, a trigger button is triggered in the moving process of the metal rod, the trigger button sends an electric signal to the main control console, and the main control console can position the damaged buoyancy bag according to the received electric signal, the maintenance and the maintenance of staff are facilitated.)

1. A zero-gravity submarine cable suitable for a wave power generation device is characterized by comprising a cable protective layer, a core wire, a buoyancy bag, a damage detection mechanism and a main control console arranged on one side of the power generation device, wherein the cable protective layer is coated outside the core wire; damage detection mechanism includes first metal contact, second metal contact, electro-magnet and metal pole, first metal contact, second metal contact set up on the cable protective layer surface that the buoyancy bag was located, first metal contact is connected with the heart yearn electricity, second metal contact is connected with electro-magnet and heart yearn electricity in proper order, the electro-magnet sets up on cable protective layer inner wall, the metal pole slides and sets up on cable protective layer inner wall to be located electro-magnet one side, be located be provided with trigger button on the cable protective layer inner wall between metal pole and the electro-magnet, trigger button passing signal connecting line is connected with the master control platform electricity.

2. The zero-gravity submarine cable suitable for a wave power generation device according to claim 1, wherein a T-shaped sliding groove is formed in the inner surface of the cable protection layer, a T-shaped sliding block is arranged on the metal rod and located in the T-shaped sliding groove, and the trigger button is arranged in the T-shaped sliding groove.

3. The zero-gravity submarine cable suitable for a wave power generation device according to claim 2, further comprising a normally closed button connected in series between the second metal contact and the electromagnet, the normally closed button being disposed in the T-shaped chute, and the distance from the trigger button to the electromagnet being greater than the distance from the normally closed button to the electromagnet.

4. A zero-gravity submarine cable suitable for wave power generation according to claim 1, wherein the cable protective layer is elliptical, with the major axis of the cable protective layer in the direction of ocean current and the minor axis in the direction of gravity.

5. A zero-gravity submarine cable suitable for a wave energy power plant according to claim 1, wherein a display screen is provided on the console.

6. The zero-gravity submarine cable suitable for a wave energy power generation device according to claim 1, further comprising a buoy assembly disposed on an outer surface of the cable protection layer.

7. The zero-gravity submarine cable suitable for a wave power generation device according to claim 6, wherein the buoy assembly comprises a buoy, a fuse, a battery pack, a waterproof box and a connecting rope, the waterproof box is arranged on the outer surface of a cable protection layer, the battery pack is arranged inside the waterproof box, one end of the connecting rope is connected with the buoy, the other end of the connecting rope is fixed on the outer surface of the cable protection layer, one end of the connecting rope, close to the buoy, is provided with a fixing rope, the fixing rope extends into the waterproof box to be connected with the fuse, the battery pack is respectively electrically connected with the fuse and a first metal contact, and a second metal contact is electrically connected with the fuse; the length of the connecting rope is larger than the submergence depth of the cable.

Technical Field

The invention relates to the technical field of cables, in particular to a zero-gravity submarine cable suitable for a wave power generation device.

Background

Submarine power cables play more and more important roles in offshore power energy transmission, are widely applied to island power supply, independent power grid connection, offshore wind farm power output, offshore oil platform power supply, river-crossing channel power transmission and other aspects, after submarine cables are laid, is placed on the surface of the seabed to be contacted with seabed sand and stone for a long time, is rubbed with the seabed sand and stone for a long time under the action of sea current, the submarine cable happy may be corroded and worn in large area and long distance, and has cracks or perforations, compared with the land cable, the submarine power cable is often routed for tens of kilometers or even longer, once damaged, a specific position of a fault point under water can be found and salvaged and repaired by various means, the maintenance period is long, the user requirement of a power supply area is slightly influenced, a navigation channel needs to be closed seriously, and the economic loss and the social influence in a wider range are caused.

Disclosure of Invention

Therefore, the zero-gravity submarine cable suitable for the wave power generation device is provided, the floating of the cable in the sea can be realized, the outer layer of the cable is prevented from being damaged by friction of submarine gravels, and meanwhile, the position of a damaged buoyancy bag can be positioned, so that the maintenance is convenient.

The technical scheme of the invention is realized as follows:

a zero-gravity submarine cable suitable for a wave power generation device comprises a cable protective layer, a core wire, a buoyancy bag, a damage detection mechanism and a main control console arranged on one side of the power generation device, wherein the cable protective layer is coated outside the core wire; damage detection mechanism includes first metal contact, second metal contact, electro-magnet and metal pole, first metal contact, second metal contact set up on the cable protective layer surface that the buoyancy bag was located, first metal contact is connected with the heart yearn electricity, second metal contact is connected with electro-magnet and heart yearn electricity in proper order, the electro-magnet sets up on cable protective layer inner wall, the metal pole slides and sets up on cable protective layer inner wall to be located electro-magnet one side, be located be provided with trigger button on the cable protective layer inner wall between metal pole and the electro-magnet, trigger button passing signal connecting line is connected with the master control platform electricity.

Preferably, the inner surface of the cable protective layer is provided with a T-shaped sliding groove, the metal rod is provided with a T-shaped sliding block, the T-shaped sliding block is located in the T-shaped sliding groove, and the trigger button is arranged in the T-shaped sliding groove.

Preferably, still include the normally closed button, the normally closed button series connection is in the middle of second metal contact and the electro-magnet, the normally closed button sets up in T type spout, the distance that trigger button apart from the electro-magnet is greater than the distance that the normally closed button apart from the electro-magnet.

Preferably, the cable protection layer is elliptical, and the major axis of the cable protection layer is along the direction of ocean current and the minor axis is along the direction of gravity.

Preferably, a display screen is arranged on the main control console.

Preferably, the cable protection layer further comprises a floating component, and the floating component is arranged on the outer surface of the cable protection layer.

Preferably, the buoy assembly comprises a buoy, a fuse wire, a battery pack, a waterproof box and a connecting rope, the waterproof box is arranged on the outer surface of the cable protective layer, the battery pack is arranged inside the waterproof box, one end of the connecting rope is connected with the buoy, the other end of the connecting rope is fixed on the outer surface of the cable protective layer, a fixing rope is arranged at one end, close to the buoy, of the connecting rope, the fixing rope extends into the waterproof box to be connected with the fuse wire, the battery pack is respectively and electrically connected with the fuse wire and a first metal contact, and a second metal contact is electrically connected with the fuse wire; the length of the connecting rope is larger than the submergence depth of the cable.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a zero-gravity submarine cable suitable for a wave power generation device, which can float in the sea under the buoyancy action of a buoyancy bag after entering the sea and can not sink to the sea by arranging the buoyancy bag on the outer surface of a cable protective layer, so that the cable protective layer is prevented from being damaged by friction of seabed abrasive paper, the service life of the cable is prolonged, and the zero-gravity submarine cable also has the damage detection function of the buoyancy bag, when one buoyancy bag is damaged by the impact of fishes and the like, seawater can enter the buoyancy bag, a first metal contact and a second metal contact are electrically connected by taking the seawater as a conductive medium, so that electric energy transmitted on a core wire can be transmitted to an electromagnet, the electromagnet is electrified and magnetized to attract a metal rod to slide, a trigger button is triggered when the metal rod slides, the trigger button sends an electric signal to a main control console, the main control console can position the damaged buoyancy bag according to the received electric signal, therefore, the maintenance can be conveniently carried out, and the phenomenon that a certain section of the cable sinks to the seabed due to the damage of the buoyancy bag is prevented.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural view of a first embodiment of a zero-gravity submarine cable suitable for a wave-energy power plant according to the present invention;

FIG. 2 is a schematic structural view of a breakage detection mechanism of a first embodiment of a zero-gravity submarine cable suitable for a wave-energy-breaking power plant according to the present invention;

FIG. 3 is a schematic diagram of a breakage detection circuit for a first embodiment of a zero-gravity submarine cable suitable for a wave-energy-breaking power plant in accordance with the present invention;

FIG. 4 is a schematic structural view of a second embodiment of a zero-gravity submarine cable suitable for a wave-energy power plant according to the present invention;

FIG. 5 is a schematic diagram of a float release circuit of a second embodiment of a zero-gravity ocean bottom cable suitable for a wave energy power plant of the present invention;

in the figure, 1 is a cable protective layer, 2 is a core wire, 3 is a buoyancy bag, 4 is a main control console, 5 is a first metal contact, 6 is a second metal contact, 7 is an electromagnet, 8 is a metal rod, 9 is a trigger button, 10 is a T-shaped chute, 11 is a T-shaped slider, 12 is a normally closed button, 13 is a display screen, 14 is a buoy, 15 is a fuse wire, 16 is a battery pack, 17 is a waterproof box, 18 is a connecting rope, 19 is a fixing rope, and 20 is a signal connecting wire.

Detailed Description

For a better understanding of the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described with reference to the accompanying drawings.

Referring to fig. 1 to 3, the zero-gravity submarine cable suitable for a wave power generation device provided by the invention comprises a cable protection layer 1, a core wire 2, a buoyancy bag 3, a damage detection mechanism and a main control console 4 arranged on one side of the power generation device, wherein the cable protection layer 1 is covered outside the core wire 2, the buoyancy bag 3 is arranged on the outer surface of the cable protection layer 1, and the damage detection mechanism is arranged on the cable protection layer 1 and is electrically connected with the main control console 4; breakage detection mechanism includes first metal contact 5, second metal contact 6, electro-magnet 7 and metal pole 8, first metal contact 5, second metal contact 6 set up on the 1 surface of cable protection layer that buoyancy bag 3 located, first metal contact 5 is connected with heart yearn 2 electricity, second metal contact 6 is connected with electro-magnet 7 and heart yearn 2 electricity in proper order, electro-magnet 7 sets up on 1 inner wall of cable protection layer, metal pole 8 slides and sets up on 1 inner wall of cable protection layer to be located electro-magnet 7 one side, be located be provided with trigger button 9 on 1 inner wall of cable protection layer between metal pole 8 and the electro-magnet 7, trigger button 9 passes through signal connection line 20 and is connected with master control platform 4 electricity.

The zero-gravity submarine cable suitable for the wave power generation device is characterized in that a plurality of buoyancy bags 3 are arranged on the outer surface of a cable protective layer 1, the cable can float in the sea and cannot sink into the sea after sinking into the sea under the action of the buoyancy bags 3, submarine sandstone friction on the cable protective layer 1 during seawater flow can be prevented, the cable protective layer 1 is prevented from being scraped and damaged, and the service life of the cable is prolonged, the buoyancy bags 3 are arranged on the cable protective layer 1 at intervals, the buoyancy bags 3 are arranged in a shape similar to wings, so that the influence of seawater flow on the cable and the buoyancy bags 3 can be prevented, the number of the buoyancy bags 3 at the same position can be determined according to the submergence depth of the cable, after the cable enters the water, the gravity of the cable is equal to the sum of the buoyancy of all the buoyancy bags 3, and the cable can be ensured to be in a balanced state and float in the water after entering the water, meanwhile, the embodiment also increases the damage detection of the buoyancy bags 3, when one of the buoyancy bags 3 is damaged, the main control console 4 can receive the damage information, and the precise positioning is to determine which buoyancy bag 3 is damaged, so that the maintenance and the repair of workers can be facilitated.

In a normal use state, the buoyancy bag 3 is filled with gas, a first metal contact 5 and a second metal contact 6 on the outer surface of the cable protection layer 1 at the position of the buoyancy bag 3 are in a non-electricity connection relationship, a circuit loop formed by the first metal contact 5, the electromagnet 7, the core wire 2 and the second metal contact 6 is disconnected at the positions of the first metal contact 5 and the second metal contact 6, the core wire 2 transmits electric energy generated by a power generation device and can be used as a power supply yard of the electromagnet 7, the electric energy transmitted by the core wire 2 in a normal state cannot be transmitted to the electromagnet 7, the electromagnet 7 does not have magnetism at the moment, a metal rod 8 at one side of the electromagnet 7 is also in an initial far-away state, when the buoyancy bag 3 is damaged, seawater can enter the buoyancy bag 3 and is in contact with the first metal contact 5 and the second metal contact 6, and seawater is used as a conductive medium, first metal contact 5 and second metal contact 6 establish the electrical connection relation, thereby the electric energy of transmission can be carried for electro-magnet 7 on the heart yearn 2, make electro-magnet 7 circular telegram electrified magnetism, electro-magnet 7 can attract the metal pole 8 that is located its one side to remove to electro-magnet 7 direction, metal pole 8 makes the trigger button 9 that sets up on the inner wall of cable protection layer 1 triggered at gliding in-process, trigger button 9 produces the signal of telecommunication and transmits for master control platform 4 through signal connection line 20, master control platform 4 fixes a position out damaged buoyancy bag 3 according to the signal of telecommunication received, thereby the staff can be quick maintains the maintenance to damaged buoyancy bag 3, prevent to lead to the cable to sink after certain buoyancy bag 3 damages.

Preferably, a T-shaped sliding groove 10 is formed in the inner surface of the cable protection layer 1, a T-shaped sliding block 11 is arranged on the metal rod 8, the T-shaped sliding block 11 is located in the T-shaped sliding groove 10, and the trigger button 9 is arranged in the T-shaped sliding groove 10.

When the electromagnet 7 is electrified and magnetically attracts the metal rod 8 to slide, the T-shaped sliding block 11 arranged on the metal rod 8 can slide along the T-shaped sliding groove 10 on the inner wall of the cable protection layer 1, the trigger button 9 is arranged in the T-shaped sliding groove 10 and is positioned between the metal rod 8 and the electromagnet 7, when the metal rod 8 slides towards the electromagnet 7, the T-shaped sliding block 11 can enable the trigger button 9 to be triggered, and therefore the trigger button 9 can send an electric signal to the main control console 4 on one side of the power generation device.

Preferably, the electromagnetic switch further comprises a normally closed button 12, the normally closed button 12 is connected between the second metal contact 6 and the electromagnet 7 in series, the normally closed button 12 is arranged in the T-shaped sliding groove 10, and the distance from the trigger button 9 to the electromagnet 7 is greater than the distance from the normally closed button 12 to the electromagnet 7.

Specifically, normally closed button 12 has still been set up in T type spout 10, normally closed button 12 is close to electro-magnet 7 and sets up, when metal pole 8 receives the magnetic force attraction removal of electro-magnet 7, metal pole 8 makes trigger button 9 and normally closed button 12 trigger in proper order, trigger button 9 starts behind the signal of telecommunication for master console 4, normally closed button 12 is triggered and becomes the open mode, thereby cut off the circuit between second metal contact 6 and the electro-magnet 7, make the circuit return circuit cut off, the electric energy on heart yearn 2 can' T transmit electro-magnet 7 this moment, thereby can prevent the loss of electric energy.

Preferably, the cable protection layer 1 is elliptical, and a major axis of the cable protection layer 1 is along the direction of ocean current and a minor axis of the cable protection layer 1 is along the direction of gravity.

The oval structural design can make the sea water smoothly pass through the cable when flowing, and does not act on the cable, reduces the displacement of the sea water flowing to the cable.

Preferably, a display screen 13 is arranged on the main console 4.

The main console 4 can display the damage information of the buoyancy bags 3 on the display screen 13, so that the staff can know the position information of the damaged buoyancy bags 3.

Referring to fig. 4 and 5, the cable protection device further comprises a float assembly, the float assembly is arranged on the outer surface of the cable protection layer 1, the float assembly comprises a float 14, a fuse 15, a battery pack 16, a waterproof box 17 and a connecting rope 18, the waterproof box 17 is arranged on the outer surface of the cable protection layer 1, the battery pack 16 is arranged inside the waterproof box 17, one end of the connecting rope 18 is connected with the float 14, the other end of the connecting rope is fixed on the outer surface of the cable protection layer 1, one end of the connecting rope 18, which is close to the float 14, is provided with a fixing rope 19, the fixing rope 19 extends into the waterproof box 17 to be connected with the fuse 15, the battery pack 16 is respectively electrically connected with the fuse 15 and the first metal contact 5, and the second metal contact 6 is electrically connected with the fuse 15; the length of the connecting rope 18 is greater than the submergence depth of the cable.

The embodiment also increases the offshore positioning function after the buoyancy bag 3 is damaged, in a normal state, the buoy 14 is connected with the outer surface of the cable protection layer 1 through the connecting rope 18, the end part of the connecting rope 18 is fixed through the fixing rope 19, so that the buoy 14 is positioned near the cable protection layer 1, when the cable enters water, the buoy 14 enters the sea along with the cable, the other end of the fixing rope 19 extends into the waterproof box 17 to be connected with the fuse wire 15, the battery pack 16, the first metal contact 5 and the second metal contact 6 form a circuit loop, when the buoyancy bag 3 is normally used, the first metal contact 5 and the second metal contact 6 are not in a direct electrical connection relation, when the buoyancy bag 3 is damaged, the first metal contact 5 and the second metal contact 6 establish an electrical connection relation by taking seawater as a conductive medium, so that the electric energy of the battery pack 16 can be transmitted to the fuse wire 15, the fuse wire 15 is fused after converting electric energy into heat energy, so that the fixing rope 19 loses traction, the buoy 14 moves upwards under the action of buoyancy and floats out of the water surface, and when a worker searches for the damaged buoyancy bag 3, the worker firstly moves to a specified position after positioning information of the buoyancy bag 3 according to the display screen 13 on the main control console 4 and determines the position of the damaged buoyancy bag 3 through the position of the buoy 14 on the sea surface, and even if a cable displaces under the impact of seawater, the worker can quickly find the position of the damaged buoyancy bag 3.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.