A dynamic submarine cable construction process with a double-hump structure design

Abstract

The present invention discloses a dynamic submarine cable construction process with a double-hump structure design, which belongs to the technical field of submarine cable erection. By constructing an M-shaped double-hump structure dynamic cable, the floating platform offset is met to achieve the purpose of protecting the submarine cable. An adjustable floating box is installed on the outside of the anti-wear protection tube for protecting the submarine cable. The interior of the adjustable floating box senses the change of external water pressure through a water pressure membrane, thereby judging whether there is a risk of the submarine cable touching the bottom. The lower magnetic core is driven upward by the top column to shorten the distance between the lower magnetic core and the upper magnetic core, so that the upper magnetic core triggers the deflation of the gas cylinder. The released gas expands the airbag, increasing the buoyancy of the adjustable floating box, thereby effectively driving the submarine cable to float upward, eliminating the risk of the submarine cable touching the bottom, effectively avoiding interference and collision between the submarine cable and the seabed, and effectively improving the service life of the submarine cable.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine cable installation, and more particularly to a dynamic submarine cable construction process with a double-hump structure design. Background Art

[0002] The "floating wind turbine" will be filled with helium and rise 300 meters above the ground to catch strong winds, driving the generators attached to the ends of the horizontal axis to generate electricity. The "floating wind turbine" is powered by a helium device to stay in the air, and the rotation of the rotor in the wind can also provide some power. The electricity generated by the generator will be transmitted to the ground via cables connected to the generator. The initial market target of the "floating wind turbine" is remote communities. my country has a long coastline and a vast continental shelf, and there are large areas of shallow water that are also suitable for floating units. The installation of floating wind turbines in shallow waters has natural advantages in other aspects, and can serve as a transition to deep-water areas.

[0003] The requirements for the configuration design of dynamic submarine cables are becoming increasingly higher. Theoretically, the deeper the water depth of the floating wind turbine, the easier it is to design its dynamic submarine cable. Under the influence of tides and waves, the floating platform will move back and forth within a certain range. Large offsets, shallow waters, and possible torsion of the platform are the main difficulties of this project. The floating platform has a free movement in the horizontal direction, which makes it difficult to linearly construct the dynamic submarine cable on the seabed.

[0004] The construction of a dynamic bending submarine cable can solve the problem of submarine cable bending caused by the vertical movement of dynamic submarine cables in the space of 5 meters above and below. During the vertical movement of the dynamic submarine cable, the submarine cable may contact the seabed, and the submarine cable may interfere with and collide with the anchor chain and the seabed. Although the exterior of the submarine cable has a wear-resistant protection function, the wear-resistant structure also has its limits, which affects the service life of the submarine cable. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] In response to the problems existing in the prior art, the purpose of the present invention is to provide a dynamic submarine cable construction process with a double-hump structure design. This scheme achieves the purpose of protecting the submarine cable by constructing an M-shaped double-hump structure dynamic cable to meet the offset of the floating platform. An adjustable floating box is installed on the outside of the anti-wear protection tube that protects the submarine cable. The interior of the adjustable floating box senses the change of external water pressure through a water pressure membrane, thereby judging whether there is a risk of the submarine cable touching the bottom, and drives the lower magnetic core upward through the top column to shorten the distance between the lower magnetic core and the upper magnetic core, so that the upper magnetic core triggers the deflation of the gas cylinder. The released gas expands the airbag, increasing the buoyancy of the adjustable floating box, thereby effectively driving the submarine cable to float upward, eliminating the risk of the submarine cable touching the bottom, effectively avoiding interference and collision between the submarine cable and the seabed, and effectively improving the service life of the submarine cable.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A dynamic submarine cable construction process with a double-hump structure design includes the following steps:

[0010] S1. Divide the submarine cable into dynamic and static sections for laying, and then connect the platform and the floating platform with the submarine cable;

[0011] S2. Two sets of submarine fixtures are anchored on the seabed to limit the position of the dynamic submarine cable segment. Buoyancy blocks are installed on the dynamic submarine cable segment to correspond to the submarine fixtures, thus constructing an M-shaped dynamic cable. The overall hydrodynamic analysis of the buoyancy blocks, floating platform, and anchor chains of the submarine fixtures is performed to determine the vertical floating foundation offset of the dynamic submarine cable segment.

[0012] S3. Install bending reinforcements and anti-wear protection tubes according to the bending positions of the M-shaped cables to protect vulnerable parts.

[0013] Furthermore, in step S3, the outside of the anti-wear protection tube is fixedly connected to an adjustable floating box, and a pressure chamber is fixedly opened at the bottom of the adjustable floating box, and both sides of the pressure chamber are fixedly connected to expansion air bags, the bottom of the pressure chamber is fixedly connected to a water pressure membrane, the inner side of the water pressure membrane is fixedly connected to a support rib, the top of the pressure chamber is fixedly connected to a gas cylinder chamber, the inside of the gas cylinder chamber is detachably connected to a gas cylinder, and a vent pipe is fixedly connected between the gas outlet end of the gas cylinder and the pressure chamber, a sensing tube is fixedly connected between the gas cylinder chamber and the pressure chamber, and the top of the sensing tube is fixedly connected to an elastic The elastic membrane is fixedly connected to the upper magnetic core in the middle of the elastic membrane. The gas cylinder uses a push-type valve and corresponds vertically to the upper magnetic core. The middle of the bracket rib is fixedly connected to the top column, and the top of the top column is fixedly connected to the lower magnetic core. The magnetic poles of the upper magnetic core and the lower magnetic core repel each other. The middle of the induction tube is fixedly connected to a partition plate, and the partition plate is located between the upper magnetic core and the lower magnetic core. Both sides of the top of the pressure chamber are fixedly connected to a vent pipe, and the internal fixed sleeve of the vent pipe is provided with a sealing hose. Both sides of the bracket rib are fixedly connected to a vent needle, and the vent needle is connected to the vent pipe.

[0014] Furthermore, the bottom end surface of the adjustable floating box is set in an arc shape, and the adjustable floating box is made of stainless steel. The arc-shaped bottom surface design of the adjustable floating box can correspond to the bending state of the submarine cable, which is convenient for the installation and fixation of the adjustable floating box without affecting the bending changes of the submarine cable. The adjustable floating box made of stainless steel has a certain counterweight capacity and provides good water pressure resistance.

[0015] Furthermore, both ends of the adjustable floating box are fixedly connected to outer covering keels, which cover the inflatable airbag. The outer covering keels provide external protection for the inflatable airbag and limit the maximum expansion amplitude of the inflatable airbag to prevent the inflatable airbag from bursting.

[0016] Furthermore, the interior of the expansion airbag is fixedly connected to an internal support keel, and the expansion airbag is made of polyurethane rubber material. The internal support keel supports the interior of the expansion airbag to prevent the expansion airbag from being flattened by water pressure and ensure the minimum expansion size of the expansion airbag. The expansion airbag made of polyurethane rubber material has excellent corrosion resistance.

[0017] Furthermore, both ends of the support rib are fixedly connected to the pressure chamber, and the support rib is made of elastic metal material, and the hydraulic membrane is made of polyurethane rubber material. The support rib improves the deformation resistance and recovery ability of the hydraulic membrane, so that the hydraulic membrane is deformed only under high water pressure. The hydraulic membrane made of polyurethane rubber material has very good corrosion resistance, which improves the service life of the hydraulic membrane.

[0018] Furthermore, the top end of the top column is sleeved with the induction tube. The top column is made of metal material. The top end of the top column moves up and down in the induction tube to facilitate accurate correspondence between the upper magnetic core and the lower magnetic core. The top column made of metal material has strong deformation resistance and can effectively prevent the top column from being deformed due to pressure.

[0019] Furthermore, an adjustable floating box extends out from the top of the gas cylinder bin, and flanges are fixedly connected to the top of the gas cylinder bin and the outside of the gas cylinder, and the two sets of flanges are connected correspondingly. The flange connection method is used to facilitate the installation of the gas cylinder into the gas cylinder bin, thereby facilitating the replacement operation of the gas cylinder and facilitating the maintenance of the equipment.

[0020] Furthermore, the outer diameter of the vent needle is larger than the inner diameter of the sealing tube. The sealing tube is made of wear-resistant rubber material. The vent needle is inserted into the sealing tube to squeeze the sealing tube to deform it, thereby achieving a sealing effect of the vent tube and effectively avoiding air leakage.

[0021] Furthermore, a guide needle is fixedly connected to the top of the deflation needle. The outer diameter of the guide needle is smaller than the inner diameter of the sealing rubber tube. The guide needle is used to guide the lifting movement of the deflation needle, so that the deflation needle can be accurately inserted into the deflation tube.

[0022] 3. Beneficial effects

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] (1) By constructing an M-shaped double-peak structure dynamic cable, the floating platform offset is met to achieve the purpose of protecting the submarine cable. An adjustable floating box is installed on the outside of the anti-wear protection tube of the submarine cable. The inside of the adjustable floating box senses the change of external water pressure through the water pressure membrane, thereby judging whether there is a risk of the submarine cable touching the bottom. The lower magnetic core is driven upward through the top column to shorten the distance between the lower magnetic core and the upper magnetic core, so that the upper magnetic core triggers the deflation of the gas cylinder. The released gas expands the airbag and increases the buoyancy of the adjustable floating box, thereby effectively driving the submarine cable to float upward, eliminating the risk of the submarine cable touching the bottom, effectively avoiding interference and collision between the submarine cable and the seabed, and effectively improving the service life of the submarine cable.

[0025] (2) In step S3, the outside of the anti-wear protection tube is fixedly connected to an adjustable floating box, and a pressure chamber is fixedly opened at the bottom of the adjustable floating box, and both sides of the pressure chamber are fixedly connected to expansion air bags, the bottom of the pressure chamber is fixedly connected to a water pressure membrane, the inner side of the water pressure membrane is fixedly connected to a support rib, the top of the pressure chamber is fixedly connected to a gas cylinder chamber, the inside of the gas cylinder chamber is detachably connected to a gas cylinder, and a ventilation pipe is fixedly connected between the gas outlet end of the gas cylinder and the pressure chamber, a sensing tube is fixedly connected between the gas cylinder chamber and the pressure chamber, the top of the sensing tube is fixedly connected to an elastic membrane, and the middle of the elastic membrane is fixedly connected to an upper magnetic core, the gas cylinder uses a push-type valve and is vertically corresponding to the upper magnetic core, the middle of the support rib is fixedly connected to the top The cam is secured to the bottom of the vessel and is held in place until the cam is in a position to move upwards, the cam being secured to the vessel's bottom by the pressure means and being able to move about as far as the vessel can take off.

[0026] (3) The bottom end surface of the adjustable floating box is set in an arc shape, and the adjustable floating box is made of stainless steel. The arc-shaped bottom surface design of the adjustable floating box can correspond to the bending state of the submarine cable, which is convenient for the installation and fixation of the adjustable floating box without affecting the bending change of the submarine cable. The adjustable floating box made of stainless steel has a certain counterweight capacity and provides good water pressure resistance.

[0027] (4) Both ends of the adjustable floating box are fixedly connected to the outside with an outer covering keel, which covers the expansion airbag. The outer covering keel provides external protection for the expansion airbag and limits the maximum expansion amplitude of the expansion airbag to prevent the expansion airbag from bursting.

[0028] (5) The interior of the expansion airbag is fixedly connected with an internal support keel, and the expansion airbag is made of polyurethane rubber material. The internal support keel supports the interior of the expansion airbag to prevent the expansion airbag from being flattened by water pressure and ensure the minimum expansion size of the expansion airbag. The expansion airbag made of polyurethane rubber material has good corrosion resistance.

[0029] (6) Both ends of the support rib are fixedly connected to the pressure chamber, and the support rib is made of elastic metal material, and the hydraulic membrane is made of polyurethane rubber material. The support rib improves the deformation resistance and recovery ability of the hydraulic membrane, so that the hydraulic membrane is deformed only under high water pressure. The hydraulic membrane made of polyurethane rubber material has very good corrosion resistance, which improves the service life of the hydraulic membrane.

[0030] (7) The top of the top column is connected to the induction tube. The top column is made of metal material. The top of the top column moves up and down in the induction tube to facilitate the accurate correspondence between the upper magnetic core and the lower magnetic core. The top column made of metal material has strong deformation resistance and can effectively prevent the top column from being deformed due to pressure.

[0031] (8) An adjustable floating box extends from the top of the gas cylinder bin. Flanges are fixedly connected to the top of the gas cylinder bin and the outside of the gas cylinder, and the two sets of flanges are connected correspondingly. The flange connection method facilitates the installation of the gas cylinder into the gas cylinder bin, thereby facilitating the replacement of the gas cylinder and the maintenance of the equipment.

[0032] (9) The outer diameter of the vent needle is larger than the inner diameter of the sealing hose. The sealing hose is made of wear-resistant rubber material. The vent needle is inserted into the sealing hose to squeeze the sealing hose and deform it, thereby achieving a sealing effect of the vent hose and effectively avoiding air leakage.

[0033] (10) A guide needle is fixedly connected to the top of the vent needle. The outer diameter of the guide needle is smaller than the inner diameter of the sealing rubber tube. The guide needle is used to guide the lifting and lowering movement of the vent needle, so that the vent needle can be accurately inserted into the vent tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A pictogram of a double-hump structure submarine cable according to the present invention;

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of the adjustable floating box of the present invention;

[0036] Figure 3 This is an image of the sinking of the bent section of the double-hump structure submarine cable of the present invention;

[0037] Figure 4 It is a schematic cross-sectional structural diagram of the adjustable floating box of the present invention;

[0038] Figure 5 It is a structural schematic diagram of A in the present invention;

[0039] Figure 6 Defend the pictogram of the present invention's top pillar rise;

[0040] Figure 7 Schematic diagram of the cross-sectional structure of the inflatable airbag of the present invention;

[0041] Figure 8 A pictogram showing the rise and fall of the deflation needle in the deflation tube of the present invention;

[0042] Figure 9 It is a schematic diagram of the three-dimensional structure of the deflation needle of the present invention.

[0043] Description of reference numerals in the figures:

[0044] 1 adjustable floating box, 2 pressure chamber, 3 expansion airbag, 301 outer covering keel, 302 inner supporting keel, 4 hydraulic membrane, 5 support rib, 6 gas cylinder chamber, 7 gas cylinder, 8 ventilation tube, 9 induction tube, 10 elastic membrane, 11 upper magnetic core, 12 top column, 13 lower magnetic core, 14 partition plate, 15 deflation tube, 16 sealing hose, 17 deflation needle, 1701 guide needle. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0048] Example:

[0049] See also Figure 1-9 A dynamic submarine cable construction process with a double-hump structure design includes the following steps:

[0050] S1. Divide the submarine cable into dynamic and static sections for laying, and then connect the platform and the floating platform with the submarine cable;

[0051] S2. Two sets of submarine fixtures are anchored on the seabed to limit the position of the dynamic submarine cable segment. Buoyancy blocks are installed on the dynamic submarine cable segment to correspond to the submarine fixtures, thus constructing an M-shaped dynamic cable. The overall hydrodynamic analysis of the buoyancy blocks, floating platform, and anchor chains of the submarine fixtures is performed to determine the vertical floating foundation offset of the dynamic submarine cable segment.

[0052] S3. Install bending reinforcements and anti-wear protection tubes according to the bending positions of the M-shaped cables to protect vulnerable parts.

[0053] Please see the attached Figure 2 、 3 , 4, 5, in step S3, the outside of the anti-wear protection tube is fixedly connected with an adjustable floating box 1, and a pressure chamber 2 is fixedly opened at the bottom of the adjustable floating box 1. The bottom end surface of the adjustable floating box 1 is arranged in an arc shape, and the adjustable floating box 1 is made of stainless steel material, and both sides of the pressure chamber 2 are fixedly connected with an expansion airbag 3, which is connected to the inside of the pressure chamber 2. When gas is injected into the pressure chamber 2, the expansion airbag 3 will expand synchronously. The outside of both ends of the adjustable floating box 1 is fixedly connected with an outer covering keel 301, and the outer The covering keel 301 covers the inflatable airbag 3. The outer covering keel 301 provides external protection for the inflatable airbag 3 and limits the maximum expansion amplitude of the inflatable airbag 3 to prevent the inflatable airbag 3 from bursting. The interior of the inflatable airbag 3 is fixedly connected to the inner supporting keel 302. The inflatable airbag 3 is made of polyurethane rubber material, which has excellent corrosion resistance. The supporting keel 302 supports the interior of the inflatable airbag 3 to prevent the inflatable airbag 3 from being flattened by water pressure, thereby ensuring the minimum expansion size of the inflatable airbag 3.

[0054] Please see the attached Figure 4 、 56. The bottom of the pressure chamber 2 is fixedly connected with a hydraulic membrane 4, which is made of polyurethane rubber material. The hydraulic membrane 4 made of polyurethane rubber material has very good corrosion resistance. The inner side of the hydraulic membrane 4 is fixedly connected with a support rib 5. The two ends of the support rib 5 are fixedly connected to the pressure chamber 2, and the support rib 5 is made of elastic metal material (preferably beryllium copper alloy, Cu-based high elastic alloy, Fe-based high elastic alloy, those skilled in the art can choose other elastic alloy materials according to actual needs). The support rib 5 improves the deformation resistance and recovery ability of the hydraulic membrane 4, so that the hydraulic membrane 4 is deformed only under high water pressure. , to improve the service life of the hydraulic membrane 4, the top of the pressure chamber 2 is fixedly connected to the gas cylinder chamber 6, and the inside of the gas cylinder chamber 6 is detachably connected to the gas cylinder 7 (this is a well-known technology in the field, and the specific model technicians can choose according to actual needs, which will not be described in detail here), and a ventilation pipe 8 is fixedly connected between the gas outlet end of the gas cylinder 7 and the pressure chamber 2, and the top of the gas cylinder chamber 6 extends out of the adjustable floating box 1. The top of the gas cylinder chamber 6 and the outside of the gas cylinder 7 are fixedly connected with flanges, and the two sets of flanges are correspondingly connected. The flange connection method is convenient for the gas cylinder 7 to be installed in the gas cylinder chamber 6, which facilitates the replacement operation of the gas cylinder 7 and facilitates the maintenance of the equipment;

[0055] Please see the attached Figure 6 、 7 , an induction tube 9 is fixedly connected between the gas cylinder warehouse 6 and the pressure warehouse 2, an elastic membrane 10 is fixedly connected to the top of the induction tube 9, and an upper magnetic core 11 is fixedly connected to the middle of the elastic membrane 10, and the gas cylinder 7 uses a push-type valve and corresponds vertically to the upper magnetic core 11, a top column 12 is fixedly connected to the middle of the bracket rib 5, and the top of the top column 12 is fixedly connected to the lower magnetic core 13, and the top of the top column 12 moves up and down in the induction tube 9 to facilitate the accurate correspondence between the upper magnetic core 11 and the lower magnetic core 13. The top column 12 made of metal material has strong deformation resistance and effectively prevents the top column 12 from being deformed due to pressure. The magnetic poles of the upper magnetic core 11 and the lower magnetic core 13 repel each other. A partition plate 14 is fixedly connected to the middle of the induction tube 9, and the partition plate 14 is between the upper magnetic core 11 and the lower magnetic core 13;

[0056] Please see the attached Figure 6 、 8, 9. Both sides of the top of the pressure chamber 2 are fixedly connected with a vent pipe 15, and the internal fixed sleeve of the vent pipe 15 is provided with a sealing rubber tube 16. Both sides of the bracket rib 5 are fixedly connected with a vent needle 17, and the vent needle 17 is plugged into the vent pipe 18. The outer diameter of the vent needle 17 is larger than the inner diameter of the sealing rubber tube 16. The sealing rubber tube 16 is made of wear-resistant rubber material. The vent needle 17 is inserted into the sealing rubber tube 16 to squeeze the sealing rubber tube 16 to deform, thereby achieving the sealing effect of the vent pipe 15 and effectively avoiding air leakage. The top of the vent needle 17 is fixedly connected with a guide needle 1701. The outer diameter of the guide needle 1701 is smaller than the inner diameter of the sealing rubber tube 16. The guide needle 1701 is used to guide the lifting and lowering movement of the vent needle 17, so that the vent needle 17 can be accurately inserted into the vent pipe 15.

[0057] This solution achieves the purpose of protecting the submarine cable by constructing an M-shaped double-peak structure dynamic cable to meet the offset of the floating platform. An adjustable floating box 1 is installed on the outside of the anti-wear protection tube that protects the submarine cable. The interior of the adjustable floating box 1 senses the change of external water pressure through the hydraulic membrane 4, thereby judging whether there is a risk of the submarine cable touching the bottom, and drives the lower magnetic core 13 upward through the top column 12 to shorten the distance between the lower magnetic core 13 and the upper magnetic core 11, so that the upper magnetic core 11 triggers the deflation of the gas cylinder 7. The released gas expands the airbag 3, increasing the buoyancy of the adjustable floating box 1, thereby effectively driving the submarine cable to float upward, eliminating the risk of the submarine cable touching the bottom, effectively avoiding interference and collision between the submarine cable and the seabed, and effectively improving the service life of the submarine cable.

[0058] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, and these changes should be covered by the scope of protection of the present invention.

Claims

1. A dynamic submarine cable construction process with a double-hump structure design, characterized by: The following steps are involved: S1. Divide the submarine cable into dynamic and static sections for laying, and then connect the platform and the floating platform with the submarine cable; S2. Two sets of submarine fixtures are anchored on the seabed to limit the position of the dynamic submarine cable segment. Buoyancy blocks are installed on the dynamic submarine cable segment to correspond to the submarine fixtures, thus constructing an M-shaped dynamic cable. The overall hydrodynamic analysis of the buoyancy blocks, floating platform, and anchor chains of the submarine fixtures is performed to determine the vertical floating foundation offset of the dynamic submarine cable segment. S3. Install bending reinforcements and anti-wear protection tubes at the bending positions of the M-shaped cables to protect vulnerable parts. In the step S3, the outside of the anti-wear protection tube is fixedly connected to an adjustable floating box (1), and a pressure chamber (2) is fixedly opened at the bottom of the adjustable floating box (1), and both sides of the pressure chamber (2) are fixedly connected to expansion air bags (3), the bottom of the pressure chamber (2) is fixedly connected to a water pressure membrane (4), the inner side of the water pressure membrane (4) is fixedly connected to a support rib (5), the top of the pressure chamber (2) is fixedly connected to a gas cylinder chamber (6), the inside of the gas cylinder chamber (6) is detachably connected to a gas cylinder (7), and a vent pipe (8) is fixedly connected between the gas outlet end of the gas cylinder (7) and the pressure chamber (2), an induction tube (9) is fixedly connected between the gas cylinder chamber (6) and the pressure chamber (2), the top of the induction tube (9) is fixedly connected to an elastic membrane (10), and the middle of the elastic membrane (10) is fixedly connected to the pressure chamber (2). The upper magnetic core (11) is fixedly connected to the upper part of the pressure chamber (2), the gas cylinder (7) uses a push-type valve and is vertically corresponding to the upper magnetic core (11), the middle part of the support rib (5) is fixedly connected to the top column (12), and the top end of the top column (12) is fixedly connected to the lower magnetic core (13), the magnetic poles of the upper magnetic core (11) and the lower magnetic core (13) repel each other, the middle part of the induction tube (9) is fixedly connected to the partition plate (14), and the partition plate (14) is located between the upper magnetic core (11) and the lower magnetic core (13), the top two sides of the pressure chamber (2) are fixedly connected to the vent pipe (15), and the inner fixed sleeve of the vent pipe (15) is provided with a sealing rubber hose (16); the two sides of the support rib (5) are fixedly connected to the vent needle (17), and the vent needle (17) is plugged into the vent pipe (18).

2. The construction process of a dynamic submarine cable with a double-hump structure according to claim 1, characterized in that: The bottom end surface of the adjustable floating box (1) is arranged in an arc shape, and the adjustable floating box (1) is made of stainless steel.

3. The construction process of a dynamic submarine cable with a double-hump structure according to claim 1, characterized in that: Both ends of the adjustable floating box (1) are fixedly connected to outer covering keels (301), and the outer covering keels (301) cover the expansion airbag (3).

4. The construction process of a dynamic submarine cable with a double-hump structure according to claim 1, characterized in that: The interior of the expansion airbag (3) is fixedly connected to an inner supporting keel (302), and the expansion airbag (3) is made of polyurethane rubber material.

5. The construction process of a dynamic submarine cable with a double-hump structure according to claim 1, characterized in that: Both ends of the support rib (5) are fixedly connected to the pressure chamber (2), and the support rib (5) is made of elastic metal material, and the hydraulic membrane (4) is made of polyurethane rubber material.

6. The construction process of a dynamic submarine cable with a double-hump structure according to claim 1, characterized in that: The top end of the top column (12) is sleeved with the induction tube (9), and the top column (12) is made of metal material.

7. The construction process of a dynamic submarine cable with a double-hump structure according to claim 1, characterized in that: The top of the gas cylinder warehouse (6) extends out of the adjustable floating box (1), and the top of the gas cylinder warehouse (6) and the outside of the gas cylinder (7) are both fixedly connected with flanges, and the two sets of flanges are correspondingly connected.

8. The construction process of a dynamic submarine cable with a double-hump structure according to claim 1, characterized in that: The outer diameter of the degassing needle (17) is larger than the inner diameter of the sealing rubber tube (16), and the sealing rubber tube (16) is made of wear-resistant rubber material.

9. The construction process of a dynamic submarine cable with a double-hump structure according to claim 1, characterized in that: The top end of the deflation needle (17) is fixedly connected to a guide needle (1701), and the outer diameter of the guide needle (1701) is smaller than the inner diameter of the sealing rubber tube (16).

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