Liquid cargo conveying hose with conductive cable

Abstract

The invention discloses a liquid cargo transmission hose with a conductive cable, the liquid cargo transmission hose is composed of an inner rubber layer, a pressure-bearing framework layer and an outer rubber layer, the conductive cable is spirally wound in a pipe body of the pressure-bearing framework layer between the inner rubber layer and the outer rubber layer, and the conductive cable is used as a low-voltage power line or a control signal line of the liquid cargo transmission hose and is used for transmitting electric power or control signals. The pressure-bearing framework layer is composed of middle rubber, a cord fabric layer, a static conductive copper wire and a conductive cable, and the static conductive copper wire and the conductive cable are spirally wound in the pipe body. According to the liquid cargo conveying hose with the conductive cable, the conductive cable is wound in the hose wall, the cable can be used as a low-voltage power line or a control signal line, the problem that the ship distance is difficult to judge when oil is conveyed at night is solved, and electric power or control signals can be transmitted on the liquid cargo conveying hose for connecting two ships through the conductive cable.

Description

Technical Field

[0001] This invention relates to a liquid cargo transfer hose with a conductive cable, and more particularly to a liquid cargo transfer hose with an embedded cable that can be used as a low-voltage power line or control signal line for transmitting power or control signals. Background Technology

[0002] When transferring oil between offshore oil platforms and tugboats or between unloading and receiving vessels, the common practice is to lay pipelines between the two ships. Rubber hoses, due to their high strength, flexibility, and ease of bending, can compensate for changes in distance between the two ships during oil transfer and are therefore widely used in marine engineering. When the two ships are far apart, multiple hoses are usually connected in series. However, when transferring oil at night, poor light and low visibility make it difficult for ship operators to accurately judge the distance between the two ships, potentially leading to a decrease in distance and even a collision risk. To address the difficulty in determining vessel distances during nighttime oil transfers, signals can be installed on the cargo transfer hoses connecting the two vessels to indicate their distance. Current solutions involve attaching portable lights to the middle of the hose or its joints. These lights are powered by dry cell or rechargeable batteries, and lose their illumination function after prolonged continuous operation at night when the batteries are depleted.

[0003] Among existing related patent technologies, such as the electrically heated liquid cargo transfer hose disclosed in patent document (CN119642020A), it is used to transport liquid materials such as oil and fresh water in low-temperature environments such as ice zones and polar regions. Although it uses conductive copper wire to discharge the static charge generated during oil transportation, this is a safety measure and not for actively transmitting electricity or signals. It cannot be used as a channel for transmitting control signals or general electricity at the same time, and therefore cannot be applied in application scenarios where liquid, electricity and control signals need to be transmitted between two ships simultaneously.

[0004] Therefore, there is an urgent need to design a liquid cargo transfer hose with a conductive cable wound inside the hose wall. This cable can be used as a low-voltage power line or a control signal line for transmitting power or control signals. Summary of the Invention

[0005] This invention provides a liquid cargo transfer hose with a conductive cable wound around its wall. This cable can be used as a low-voltage power supply line or a control signal line for transmitting electricity or control signals. When lighting fixtures are installed in the middle of the hose or at the joints, the cable provides power, offering continuous and stable illumination. This invention can be used for nighttime liquid cargo transfer between two vessels at sea. To achieve the above objectives, the technical solution of the present invention is: a liquid cargo transfer hose with a conductive cable, comprising an inner rubber layer, a pressure-bearing skeleton layer, and an outer rubber layer, wherein a conductive cable is spirally wound inside the pressure-bearing skeleton layer between the inner and outer rubber layers, serving as a low-voltage power supply line or control signal line for the liquid cargo transfer hose, used for transmitting power or control signals.

[0006] Furthermore, the pressure-bearing skeleton layer is composed of a medium rubber layer, a cord layer, a static-dissipating copper wire, and a conductive cable, with the static-dissipating copper wire and the conductive cable spirally wound inside the pipe.

[0007] Furthermore, the electrostatic conductive copper wire is composed of multiple fine copper wires and is used to discharge the static charge generated during oil transportation.

[0008] Furthermore, the conductive cable is a flat, flexible cable; after the conductive cable is spirally wound, the gaps within the pitch are filled with filler glue, and the conductive cable inside a single flexible tube is a complete conductive cable without any connecting joints.

[0009] Furthermore, the fabric layer is wound in even numbers, using 2 or 4 layers of cross-winding, with 2 layers forming one cross layer, so that the hose is subjected to balanced stress, and the number of layers and thickness can meet the burst pressure requirements of the hose.

[0010] Furthermore, the inner rubber layer is composed of oil-resistant black hydrogenated nitrile rubber.

[0011] Furthermore, after the inner adhesive layer is formed, the first adhesive layer, the second adhesive layer, the static-dissipating copper wire, the conductive cable, the third adhesive layer, and the fourth adhesive layer are successively wound around it.

[0012] Furthermore, the adhesive tape layer is wrapped with four layers of fabric in a crisscross pattern at a balanced angle of 54°44′.

[0013] Furthermore, the first, second, third, and fourth adhesive layers are used to withstand the internal pressure of the conveyed liquid and the tensile force generated by the dragging of the hose, and they are composed of high-strength adhesive-coated polyester fabric.

[0014] Furthermore, the outer rubber layer is composed of a wear-resistant and aging-resistant rubber-plastic alloy and nitrile rubber.

[0015] The beneficial effects of this invention are: The present invention relates to a liquid cargo transfer hose with a conductive cable, wherein the conductive cable is wound in the hose wall. The cable can be used as a low-voltage power line or a control signal line, which solves the problem of difficulty in judging the distance between ships during nighttime oil transportation. Power or control signals can be transmitted through the conductive cable on the liquid cargo transfer hose connecting two ships. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the liquid cargo transfer hose with conductive cable of the present invention; Figure 2 is a cross-sectional schematic diagram of the liquid cargo transfer hose with conductive cable of the present invention; In the diagram: 1-inner adhesive layer, 2-first adhesive layer, 3-second adhesive layer, 4-conductive cable, 5-conductive copper wire, 6-filler adhesive, 7-third adhesive layer, 8-fourth adhesive layer, 9-outer adhesive layer. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 As shown in Figure 2, the liquid cargo transfer hose with conductive cable provided in this embodiment of the invention consists of an inner rubber layer 1, a pressure-bearing skeleton layer, and an outer rubber layer 9. The inner rubber layer 1 is composed of oil-resistant black hydrogenated nitrile rubber. The pressure-bearing skeleton layer consists of a middle rubber layer, a cord layer, a static-dissipating copper wire 5, and a conductive cable 4. The static-dissipating copper wire 5 and the conductive cable 4 are spirally wound inside the tube. The outer rubber layer 9 is composed of a wear-resistant and aging-resistant rubber-plastic alloy + nitrile rubber.

[0019] The features of the liquid cargo transfer hose with conductive cable of the present invention are as follows: (1) The inner rubber layer 1 is in direct contact with the oil and is immersed in the oil for a long time. It is composed of hydrogenated nitrile rubber with good oil resistance.

[0020] (2) After the inner adhesive layer 1 is formed, the first adhesive layer 2, the second adhesive layer 3, the static-dissipating copper wire 5, the conductive cable 4, the third adhesive layer 7, and the fourth adhesive layer 8 are successively wrapped.

[0021] (3) The first adhesive layer 2, the second adhesive layer 3, the third adhesive layer 7, and the fourth adhesive layer 8 are used to withstand the internal pressure of the conveyed liquid and the tensile force generated by the dragging of the hose. They are composed of high-strength adhesive polyester fabric.

[0022] (4) The adhesive layer serves as the skeleton of the hose. It is composed of high-strength polyester cord fabric with low elastic modulus. The cord fabric winding layer should be an even number of layers, that is, two or four layers of cross-winding. Two layers form a cross layer to ensure that the hose is subjected to balanced stress. The number of layers and thickness can meet the burst pressure requirements of the hose.

[0023] (5) To ensure better dimensional stability of the hose under pressure, the adhesive layer is selected to be wrapped with four layers of cord fabric in a cross-winding manner at a balance angle of 54°44′.

[0024] (6) The electrostatic conductive copper wire 5 can discharge the static charge generated during the oil transportation process. It is composed of multiple thin copper wires.

[0025] (7) The conductive cable 4 is spirally wound inside the tube for transmitting power or control signals. To ensure that the surface of the tube remains flat after the conductive cable is wound, flat flexible cables should be preferred.

[0026] (8) After the conductive cable 4 is spirally wound, the gaps in the pitch are filled with filler glue 6.

[0027] (9) The conductive cable inside a single flexible tube should be complete and without any joints.

[0028] (10) The outer rubber layer 9 is made of aging-resistant, UV-resistant, and wear-resistant rubber-plastic alloy + nitrile rubber. The outer coating of the tube is made of rubber-plastic alloy with good ozone and UV aging resistance. The vulcanization system uses metal oxides and sulfur as the vulcanization system, sulfenamide accelerators as the vulcanization accelerator system, and ozone inhibitors as the protection system to increase the resistance of the rubber compound to ozone and UV aging. To ensure the adhesive performance of the rubber compound, adhesives are added as auxiliary materials.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this patent, and are not intended to limit it. Although this patent has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this patent.

Claims

1. A liquid cargo transfer hose with a conductive cable, characterized in that: It includes an inner rubber layer, a pressure-bearing skeleton layer, and an outer rubber layer. The pressure-bearing skeleton layer between the inner and outer rubber layers has a conductive cable spirally wound inside the tube. This cable serves as a low-voltage power supply line or control signal line for the liquid cargo transfer hose, used to transmit power or control signals.

2. The liquid cargo transfer hose with conductive cable according to claim 1, characterized in that: The pressure-bearing skeleton layer consists of a medium rubber layer, a cord layer, a static-dissipating copper wire, and a conductive cable. The static-dissipating copper wire and the conductive cable are spirally wound inside the tube.

3. The liquid cargo transfer hose with conductive cable according to claim 2, characterized in that: The static-dissipating copper wire is composed of multiple fine copper wires and is used to discharge static charges generated during oil transportation.

4. The liquid cargo transfer hose with conductive cable according to claim 1 or 2, characterized in that: The conductive cable is a flat, flexible cable; after the conductive cable is spirally wound, the gaps in the pitch are filled with filler glue, and the conductive cable in a single flexible tube is a complete conductive cable without any connecting joints.

5. The liquid cargo transfer hose with conductive cable according to claim 2, characterized in that: The fabric layer is wound in even numbers, using 2 or 4 layers of cross-winding. Two layers form one cross layer, which makes the hose stress even, and the number of layers and thickness can meet the burst pressure requirements of the hose.

6. The liquid cargo transfer hose with conductive cable according to claim 1, characterized in that: The inner rubber layer is composed of oil-resistant black hydrogenated nitrile rubber.

7. The liquid cargo transfer hose with conductive cable according to claim 1, characterized in that: After the inner adhesive layer is formed, the first adhesive layer, the second adhesive layer, the static-dissipating copper wire, the conductive cable, the third adhesive layer, and the fourth adhesive layer are successively wound around it.

8. The liquid cargo transfer hose with conductive cable according to claim 7, characterized in that: The adhesive tape layer is wrapped with four layers of fabric in a crisscross pattern at a balanced angle of 54°44′.

9. The liquid cargo transfer hose with conductive cable according to claim 7, characterized in that: The first, second, third, and fourth adhesive layers are used to withstand the internal pressure of the conveyed liquid and the tensile force generated by the dragging of the hose. They are composed of high-strength adhesive-coated polyester fabric.

10. The liquid cargo transfer hose with conductive cable according to claim 1, characterized in that: The outer rubber layer is composed of a wear-resistant and aging-resistant rubber-plastic alloy and nitrile rubber.

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