A diving bell main umbilical cable and diving bell system for saturation diving

Abstract

The present invention provides a diving bell main umbilical cable and a diving bell system for saturation diving. The diving bell main umbilical cable comprises a twisted cable core and an outer protective sheath. The twisted cable core comprises a signal line located at the center, a power supply line twisted around the periphery of the signal line, and multiple transport hoses, and multiple tension ropes filled between the power supply line, the signal line, the transport hoses, and the outer protective sheath. The power supply line comprises a conductor layer, a first shielding layer, a first protective layer, and a friction-reducing layer. The signal line comprises a twisted wire layer, a second shielding layer, and a second protective layer. The multiple transport hoses each comprise an inner protective layer and an outer protective layer. The present invention achieves high fatigue resistance and tensile strength by twisting the power supply line, the signal line, and the multiple transport hoses together, wrapping the outer protective sheath around the twisted cable core, and filling the twisted cable core with multiple tension ropes. Therefore, the present invention is not easily damaged, thereby reducing the probability of accidents occurring with the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of marine electrical cables, and in particular to a diving bell main umbilical cable and a diving bell system for saturation diving. Background Art

[0002] Early submersibles were wooden containers with a closed top and an open bottom. Their bell-like appearance gave them the name diving bell. Diving bells, used to transport divers to and from the surface, allow them to prepare for a dive, patrol the submersible, and rest underwater. They come in both open and closed styles. After being transported by ship to the designated location, the bell is lowered to the seafloor, where it is filled with fresh air for the diver to breathe, extending their underwater time.

[0003] Most modern diving bells are now fully enclosed. Several emergency air cylinders are mounted on the outside of the bell to provide breathing space in the event of a ruptured umbilical cord. Inside, the bell is equipped with a carbon dioxide absorber, heater, monitoring system, breathing gas distribution panel, oxygen partial pressure and carbon dioxide analyzer, helium-oxygen communication system, depth sounder, lighting, emergency breathing mask, camera, and other equipment. Some bells also feature ballast and release systems to facilitate underwater operations. Breathing air, communications, power, and hot water are all supplied by the mother ship.

[0004] However, because the existing diving bells are equipped with too many devices and equipment inside, multiple connecting cables need to be installed between the diving mother ship and the diving bell. The more connecting cables there are, the higher the probability of accidents occurring with the cables, which makes it impossible to ensure the long-term and stable operation of the diving bell, and thus the safety of divers when working underwater. Therefore, the existing technology has limitations. Summary of the Invention

[0005] The present invention is made to solve the above-mentioned problems, and its object is to provide a diving bell main umbilical cable and a diving bell system for saturation diving.

[0006] The present invention provides a diving bell main umbilical cable for saturation diving, which has the following characteristics: a twisted cable core and an outer protective sheath wrapped around the outer periphery of the twisted cable core, the twisted cable core includes a signal line located in the center, a power supply line twisted around the outer periphery of the signal line and a plurality of delivery hoses, and a plurality of tension ropes twisted together with the power supply line, the signal line and the delivery hose, the power supply line includes a conductor layer, and a first shielding layer, a first protective layer and a friction-reducing layer wrapped around the outer periphery of the conductor layer from the inside to the outside, the conductor layer includes a plurality of twisted The conductors are each wrapped with an insulating layer, the signal line includes a stranded wire layer, and a second shielding layer and a second protective layer wrapped around the stranded wire layer from the inside to the outside, the stranded wire layer includes a plurality of twisted shielded twisted pairs, and the plurality of delivery hoses include a pressurized hose, a gas hose, a water hose, and a recovery hose, which are respectively used for supplying gas, hot water, and exhaust gas, and the plurality of delivery hoses have an inner protective layer and an outer protective layer; wherein, the inside of the first shielding layer and the second shielding layer, and the periphery of the conductor layer and the stranded wire layer are filled with water-blocking material.

[0007] The diving bell main umbilical cable for saturation diving provided by the present invention may also have the following feature: the first shielding layer and the second shielding layer are shielding layers woven from tinned copper wires or nickel-plated carbon fibers.

[0008] The diving bell main umbilical cable for saturation diving provided by the present invention may also have the following characteristics: the first protective layer and the second protective layer are protective layers made of polyurethane or cross-linked polyethylene.

[0009] The diving bell main umbilical cable for saturation diving provided by the present invention can also have the following feature: the material of the friction-reducing layer is polypropylene or polytetrafluoroethylene.

[0010] The diving bell main umbilical cable for saturation diving provided by the present invention may also have the following features: the inner sheath is made of TPU material, and the outer sheath is made of modified silicone material.

[0011] The diving bell main umbilical cable for saturation diving provided by the present invention may also have the following feature: the tension rope is any one of an aramid rope, a nylon rope or a polyester rope.

[0012] The diving bell main umbilical cable for saturation diving provided by the present invention may also have the following feature: the outer protective sheath is a protective sheath woven from a plurality of aramid belts.

[0013] The present invention further provides a diving bell system, which is installed on a diving mother ship and includes any one of the above-mentioned diving bell main umbilical cables, and has the following characteristics, and further includes:

[0014] A diving bell comprises a shell, a hatch, a docking door and an observation window, wherein the hatch is arranged at the bottom of the shell, the docking door is arranged at the side of the shell, and the observation window is arranged at the side of the shell;

[0015] The hanger is provided on the diving mother ship and is used to drive the diving bell underwater. The hanger includes a gantry, a bell grabbing mechanism, an umbilical slide, a main hoisting pulley, a counterweight pulley, and a hanger seat. The gantry is a door frame formed by columns and crossbeams in the shape of a gate. The bell grabbing mechanism is connected to the bottom of the crossbeam for connecting to the diving bell. The umbilical slide is connected to the bottom of the crossbeam for conveying the main umbilical cable. The main hoisting pulley and the counterweight pulley are both connected to the bottom of the crossbeam. The main hoisting pulley and the counterweight pulley are used to convey the following traction cable. The hanger seat is provided on the diving mother ship and is located below the column. The hanger seat is rotatably connected to the column.

[0016] A towing cable is connected to the diving bell and is used to tow the diving bell during diving.

[0017] The diving bell system provided by the present invention may further have the following features: a control unit having an operation panel for operating, controlling, and monitoring the diving bell system.

[0018] The diving bell system provided by the present invention may also have the following features: a power distribution unit and a water supply unit, wherein the power distribution unit is provided with a starting cabinet, and the water supply unit is provided with a water heater and a control cabinet, the power distribution unit is used to supply power to the diving bell system, and the water supply unit is used to supply water to the diving bell system.

[0019] According to the main umbilical cable of the diving bell for saturation diving involved in the present invention, the power supply line, the signal line, and a plurality of conveying hoses are twisted together, and an outer protective sheath is wrapped around the outer periphery of the twisted cable core, and the twisted cable core is filled with a plurality of tensile ropes, so that the fatigue strength and tensile strength of the present invention are strong, so that the present invention is not easily damaged, thereby reducing the probability of accidents occurring in the cable, thereby relatively ensuring that the diving bell can operate stably for a long time underwater, and ensuring the safety of divers when working underwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic cross-sectional structural diagram of a main umbilical cable of a diving bell used for saturation diving according to the present invention;

[0021] Figure 2 It is a structural schematic diagram of a diving bell system of the present invention;

[0022] Figure 3 It is a structural schematic diagram of a diving bell in a diving bell system of the present invention;

[0023] Figure 4 The present invention is a structural diagram of a hanger in a diving bell system.

[0024] Description of reference numerals:

[0025] 10. Twisted cable core; 11. Power supply line; 111. Conductor layer; 112. First shielding layer; 113. First protective layer; 114. Friction-reducing layer; 12. Signal line; 121. Twisted wire layer; 122. Second shielding layer; 123. Second protective layer; 13. Delivery hose; 131. Inner sheath; 132. Outer sheath; 133. Functional layer; 134. Pressurized hose; 135. Gas hose; 136. Water hose; 137. Recovery hose; 14. Tension rope; 20. Outer protective sheath; 30. Water-blocking material. 3. Diving bell; 31. Hull; 32. Hatch door; 33. Docking door; 34. Observation window; 4. Hanger; 41. Door frame; 42. Bell grab mechanism; 43. Umbilical slide; 44. Main hoisting pulley; 45. Counterweight pulley; 46. Hanging seat; 5. Towing cable; 6. Main umbilical cable. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is described in detail in the following embodiments with reference to the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the cross-sectional structure of the main umbilical cable of the present invention.

[0028] like Figure 1 As shown, this embodiment provides a diving bell main umbilical cable for saturation diving, including: a twisted cable core 10 and an outer protective sheath 20.

[0029] like Figure 1 As shown, the twisted cable core 10 includes a signal line 12 located at the center, a power line 11 and multiple delivery hoses 13 twisted around the periphery of the signal line 12, and multiple tension ropes 14 twisted together with the power line 11, signal line 12, and delivery hoses 13. Placing the signal line 12 at the center of the twisted cable core 10 eliminates twist pitch in the signal line 12, thereby enhancing the transmission stability of the signal line 12.

[0030] like Figure 1 As shown, the power supply line 11 includes a conductor layer 111 , and a first shielding layer 112 , a first protective layer 113 , and a friction-reducing layer 114 sequentially wrapped around the outer periphery of the conductor layer 111 from the inside to the outside.

[0031] In this embodiment, the conductor layer 111 includes a plurality of twisted conductors, each of which is wrapped with an insulating layer. Conductor layer 111. The conductors are preferably 2.5 mm pure copper conductors.

[0032] In this embodiment, the insulating layer is preferably made of polyethylene, fluoroplastic, TPE, TPEE, or modified ethylene propylene rubber.

[0033] In this embodiment, the material of the friction-reducing layer 114 is preferably polypropylene or polytetrafluoroethylene.

[0034] like Figure 1 As shown, the signal line 12 includes a twisted wire layer 121 , and a second shielding layer 122 and a second protective layer 123 sequentially wrapped around the twisted wire layer 121 from the inside to the outside.

[0035] In this embodiment, the twisted wire layer 121 includes a plurality of twisted shielded twisted pairs, wherein the shielding of the shielded twisted pairs is preferably an aluminum foil wrapped shielding.

[0036] In this embodiment, the first shielding layer 112 and the second shielding layer 122 are preferably shielding layers woven from tinned copper wires or nickel-plated carbon fibers.

[0037] In this embodiment, the first protective layer 113 and the second protective layer 123 are preferably made of polyurethane or cross-linked polyethylene.

[0038] In this embodiment, the interior of the first shielding layer 112 and the second shielding layer 122, and the periphery of the conductor layer 111 and the stranded wire layer 121 are filled with a water-blocking material 30. The water-blocking material 30 can be a water-swelling grease, water-blocking powder, petroleum filler paste, hot melt adhesive, thermal expansion grease, etc. The water-blocking material 30 is preferably a water-swelling grease.

[0039] like Figure 1 As shown, the multiple delivery hoses 13 each have an inner sheath 131 and an outer sheath 132. The multiple delivery hoses 13 include a pressurized hose 134, a gas delivery hose 135, a water delivery hose 136, and a recovery hose 137, which are respectively used to supply gas, hot water, and waste gas. The recovery hose 137 is mainly used to supply waste gas, the gas is preferably air or a helium-oxygen mixture, and the hot water is preferably hot seawater.

[0040] In this embodiment, the inner protective layer 131 is an inner protective layer 131 made of TPU material, and the outer protective layer 132 is an outer protective layer 132 made of modified silicone material.

[0041] In this embodiment, the delivery hose 13 can be provided with a functional layer 133 between the inner and outer sheaths 131 and 132, depending on the medium being transported. For example, an anti-corrosion layer is preferably provided between the inner and outer sheaths 131 and 132 of the pressurized hose 134; a reinforcement layer is preferably provided between the inner and outer sheaths 131 and 132 of the gas hose 135 and the recovery hose 137; and an insulation layer is preferably provided between the inner and outer sheaths 131 and 132 of the water hose 136. The anti-corrosion layer is preferably made of polyisobutylene rubber, the reinforcement layer is preferably woven from fiber filaments, metal wires, or fiber-metal multifilaments, and the insulation layer is preferably made of polyurethane foam.

[0042] In this embodiment, the tensile cord 14 is preferably any one of an aramid cord, a nylon cord or a polyester cord.

[0043] In this embodiment, the outer protective cover 20 is preferably a protective cover woven from a plurality of aramid tapes.

[0044] In this embodiment, the colors of the power supply line 11, the signal line 12, each delivery hose 13, and the outer protective cover 20 are all different. Specifically, the color of the power supply line 11 is preferably red, the color of the signal line 12 is preferably yellow, the color of the pressurized hose 134 is preferably black, the color of the gas hose is preferably blue, the color of the water hose 136 is preferably white, the color of the recovery hose 137 is preferably gray, and the color of the outer protective cover 20 is preferably orange. When using the present invention or performing maintenance on the present invention, the power supply line 11, the signal line 12, and the delivery hose 13 can be quickly handled according to the color, thereby improving the convenience of using the present invention. At the same time, the color of the outer protective cover 20 is preferably orange, which can effectively prevent sharks from biting the multifunctional cable of the present invention, thereby indirectly improving the stability of the present invention when in use.

[0045] Figure 2 This is a structural diagram of a diving bell system of the present invention. Figure 3 This is a structural diagram of a diving bell in a diving bell system of the present invention. Figure 4 The present invention is a structural diagram of a hanger in a diving bell system.

[0046] like Figures 2 to 4 As shown, this embodiment also provides a diving bell system, installed on a diving mother vessel, comprising the aforementioned main umbilical cable 6, a diving bell 3, a davit 4, a towing cable 5, a control unit, a power distribution unit, and a water supply unit. The main umbilical cable 6 is used to supply resources and provide communication signals to the diving bell 3.

[0047] like Figure 3As shown, the diving bell 3 includes a shell 31, a hatch 32, a docking door 33 and an observation window 34. The hatch 32 is arranged at the bottom of the shell 31, the docking door 33 is arranged on the side of the shell 31, and the observation window 34 is arranged on the side of the shell 31.

[0048] In this embodiment, a plurality of observation windows 34 are evenly provided on the side wall of the shell 31 , so as to facilitate observation of the conditions inside and outside the diving bell 3 .

[0049] like Figure 4 As shown, the hanger 4 is provided on the diving mother ship and is used to drive the diving bell 3 to move underwater. The hanger 4 includes a gantry 41, a bell grabbing mechanism 42, an umbilical slide 43, a main hoisting pulley 44, a counterweight pulley 45, and a hanger 46. The gantry 41 is a door-shaped gantry 41 formed by columns and beams. The bell grabbing mechanism 42 is connected to the bottom of the beam for connecting to the diving bell 3. The umbilical slide 43 is connected to the bottom of the beam for conveying the main umbilical cable 6. The main hoisting pulley 44 and the counterweight pulley 45 are both connected to the bottom of the beam. The main hoisting pulley 44 and the counterweight pulley 45 are used to convey the following traction cable 5. The hanger 46 is provided on the diving mother ship and is located below the column. The hanger 46 is rotatably connected to the column.

[0050] In this embodiment, a hydraulic cylinder may be provided in the middle of the column, so that the column is driven by the hydraulic cylinder to rotate relative to the hanger 46, so that the gantry 41 can move inward and outward of the mother ship under the drive of the hydraulic cylinder, so that the hanger 4 can extend through the ship's side channel of the mother ship and extend to the outside of the mother ship's side.

[0051] like Figure 1 As shown, the traction cable 5 is connected to the diving bell 3 and is used to tow the diving bell 3 during the diving process.

[0052] like Figure 1 As shown, the control unit has an operation panel for operating, controlling, and monitoring the diving bell system.

[0053] like Figure 1 As shown, the power distribution unit is provided with a starting cabinet, and the water supply unit is provided with a water heater and a control cabinet. The power distribution unit is used to supply power to the diving bell system, and the water supply unit is used to supply water to the diving bell system.

[0054] According to the main umbilical cable of the diving bell for saturation diving involved in the present invention, the power supply line, the signal line, and a plurality of conveying hoses are twisted together, and an outer protective sheath is wrapped around the outer periphery of the twisted cable core, and the twisted cable core is filled with a plurality of tensile ropes, so that the fatigue strength and tensile strength of the present invention are strong, so that the present invention is not easily damaged, thereby reducing the probability of accidents occurring in the cable, thereby relatively ensuring that the diving bell can operate stably for a long time underwater, and ensuring the safety of divers when working underwater.

[0055] The above embodiments are preferred examples of the present invention and are not intended to limit the scope of protection of the present invention.

Claims

1. A main umbilical cable for a diving bell used for saturation diving, characterized in that: include: A twisted cable core and an outer protective sheath wrapped around the outer periphery of the twisted cable core, The twisted cable core includes a signal line at the center, a power supply line twisted around the signal line, a plurality of conveying hoses, and a plurality of tension ropes twisted together with the power supply line, the signal line, and the conveying hoses. The power supply line includes a conductor layer, and a first shielding layer, a first protective layer, and a friction-reducing layer wrapped around the outer periphery of the conductor layer from the inside to the outside. The conductor layer includes a plurality of twisted conductors, and the outer periphery of each conductor is wrapped with an insulating layer. The signal line includes a twisted wire layer, and a second shielding layer and a second protective layer sequentially wrapped around the outer periphery of the twisted wire layer from the inside to the outside, wherein the twisted wire layer includes a plurality of twisted shielded twisted pairs. The plurality of delivery hoses each have an inner protective layer and an outer protective layer, and the plurality of delivery hoses include a pressure hose, a gas hose, a water hose, and a recovery hose, which are respectively used for supplying gas, hot water, and exhaust gas; The outer protective cover is a protective cover woven from multiple aramid belts. The interior of the first shielding layer and the second shielding layer, and the periphery of the conductor layer and the stranded wire layer are filled with water-blocking material.

2. The diving bell main umbilical cable for saturation diving according to claim 1, characterized in that: in, The first shielding layer and the second shielding layer are shielding layers woven from tinned copper wires or nickel-plated carbon fibers.

3. The diving bell main umbilical cable for saturation diving according to claim 1, characterized in that: in, The first protective layer and the second protective layer are protective layers made of polyurethane or cross-linked polyethylene.

4. The diving bell main umbilical cable for saturation diving according to claim 1, characterized in that: in, The material of the friction-reducing layer is polypropylene or polytetrafluoroethylene.

5. The diving bell main umbilical cable for saturation diving according to claim 1, characterized in that: in, The inner protective layer is made of TPU material, and the outer protective layer is made of modified silicone material.

6. The diving bell main umbilical cable for saturation diving according to claim 1, characterized in that: in, The tensile rope is any one of aramid rope, nylon rope or polyester rope.

7. A diving bell system, installed on a diving mother ship, comprising the main umbilical cable according to claims 1 to 6, characterized in that: Also includes: A diving bell comprising a shell, a hatch, a docking door, and an observation window, wherein the hatch is provided at the bottom of the shell, the docking door is provided at the side of the shell, and the observation window is provided at the side of the shell; A hanger is provided on the diving mother ship and is used to drive the diving bell to move underwater. The hanger includes a gantry, a bell grabbing mechanism, an umbilical slide, a main hoisting pulley, a counterweight pulley, and a hanger seat. The gantry is a door frame formed by columns and crossbeams in a door shape. The bell grabbing mechanism is connected below the crossbeam for connecting to the diving bell. The umbilical slide is connected below the crossbeam for conveying the main umbilical cable. The main hoisting pulley and the counterweight pulley are both connected below the crossbeam. The main hoisting pulley and the counterweight pulley are used to convey the following traction cable. The hanger seat is provided on the diving mother ship and is located below the column. The hanger seat is rotatably connected to the column. A traction cable is connected to the diving bell and is used to tow the diving bell during diving.

8. The diving bell system according to claim 7, wherein: Also includes: A control unit has an operation panel for operating, controlling, and monitoring the diving bell system.

9. The diving bell system according to claim 7, wherein: Also includes: A power distribution unit and a water supply unit, wherein the power distribution unit is provided with a starting cabinet, and the water supply unit is provided with a water heater and a control cabinet. The power distribution unit is used to supply power to the diving bell system, and the water supply unit is used to supply water to the diving bell system.

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