A rigid-flexible coupling sealed oil-water separation and replacement ship oil tank

Abstract

The application discloses a rigid-flexible coupling sealed oil-water isolation replacement ship oil tank, which comprises an oil tank shell, a plurality of connecting ports are formed in the top of the oil tank shell, and the connecting ports are distributed in a spider web mode; a sealed flexible diaphragm is arranged in the oil tank shell; a protrusion is arranged on the top of the sealed flexible diaphragm, the sealed flexible diaphragm is sealingly connected with the connecting ports through the protrusion, and temperature sensors and pressure sensors are arranged in the sealed flexible diaphragm; an escalator is arranged in the oil tank shell, and a double-opening horn-shaped wave energy power generation device is connected to the escalator; and the wave energy power generation device is used for realizing collection, conversion and storage of wave energy. The rigid-flexible coupling sealed oil-water isolation replacement ship oil tank realizes large-area rigid-flexible coupling high-quality sealing, intelligent detection and energy-saving treatment under the condition of oil-water isolation replacement, improves energy utilization rate, and has high industrial application value.

Description

Technical Field

[0001] This invention relates to the field of marine oil tank technology, specifically to a rigid-flexible coupling seal for oil-water isolation and replacement of marine oil tanks. Background Technology

[0002] With the increasing size of modern ships, maximizing fuel capacity within the same displacement plays a crucial role in improving operational efficiency and reducing operating costs. This is especially true for naval vessels, where increased fuel capacity significantly expands operational radius and reduces resupply risks. However, traditionally, ships require separate seawater ballast tanks for stability regulation and control. Oil-water separation not only integrates seawater ballast tanks and fuel storage tanks, dramatically increasing the overall fuel capacity under the same displacement, but also prevents oil-water mixing from polluting the marine environment and crude oil, effectively ensuring crude oil quality.

[0003] Ship fuel tanks typically utilize the principle that oil density is lower than water, naturally forming a clear oil-water interface to achieve oil-water exchange. However, a small amount of crude oil will still be discharged into the surrounding seawater during the oil-water exchange process, accumulating and causing environmental pollution. At the same time, the exchanged oil still contains a small amount of water, resulting in impurity. Furthermore, the seawater ballast tank and fuel tank are not integrated into one unit to increase fuel capacity.

[0004] Ships sway during navigation, and the movement of fluids in the oil tanks generates wave energy. Current technologies do not collect or convert this energy. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a rigid-flexible coupling seal for oil-water isolation and replacement of ship oil tanks, thereby solving at least one of the above-mentioned technical problems.

[0006] This invention is achieved through the following technical solutions:

[0007] The tank includes an oil tank shell, the top of which has several connection ports arranged in a spider web pattern; each connection port is provided with a nut.

[0008] The oil tank shell is equipped with a sealing flexible diaphragm, and an oil storage cavity is formed within the sealing flexible diaphragm. The sealing flexible diaphragm includes an outer adhesive layer, a fiber reinforcement layer, and an inner adhesive layer arranged from the outside to the inside. The outer adhesive layer is provided with several protrusions corresponding to the positions of the connection ports. Each of the protrusions is provided with threads on its side, and the threads are adapted to fit a nut. Each of the protrusions passes through a connection port and is connected to the nut. Several pressure sensors and several temperature sensors are arranged on the fiber reinforcement layer. Each pressure sensor is located below a protrusion, and each temperature sensor is located below a protrusion.

[0009] The oil tank shell is also provided with oil inlet and outlet pipes, which are connected to the interior of the sealing flexible diaphragm; the oil tank shell is also provided with water inlet and outlet pipes, which are connected to the interior of the oil tank shell.

[0010] Several wave energy generation devices are installed inside the oil tank hull.

[0011] In the above technical solution, an oil storage chamber is formed within the sealing flexible diaphragm, and the space between the sealing flexible diaphragm and the oil tank shell serves as a water storage chamber, thereby isolating oil and water and preventing mutual contamination. When oil is injected into the oil storage chamber within the sealing flexible diaphragm through the oil inlet / outlet pipes, the water in the water storage tank is drained through the water inlet / outlet pipes, thus increasing the oil storage capacity while ensuring the ship's ballast requirements. When oil is drained through the oil inlet / outlet pipes, water is injected into the water storage tank through the water inlet / outlet pipes, thereby maintaining the liquid volume in the oil tank at the level required for ballast. Connecting the sealing flexible diaphragm with nuts ensures its sealing performance while facilitating its periodic replacement.

[0012] The connection ports are arranged in a spider web pattern with denser outer edges and sparser inner edges. Areas of stress concentration are reinforced to cope with the pulling force during ship rolling and to enhance the firmness of the connection between the sealing flexible diaphragm and the oil tank shell.

[0013] By using wave energy generators to convert the wave energy generated during the sloshing of liquid in oil tanks into electrical energy, energy utilization efficiency is improved.

[0014] Temperature sensors can detect the temperature inside the sealed flexible diaphragm, preventing abnormal temperatures from causing the oil inside the diaphragm to solidify or vaporize too quickly, thus ensuring the safety of the oil storage chamber. Pressure sensors can detect the tension on the sealed flexible diaphragm, promptly identifying any detachment of the diaphragm from the oil tank shell.

[0015] Furthermore, both the outer and inner adhesive layers are made of modified polyester-type TPU material; the fiber reinforcement layer is made of blended reinforcing fibers and waterborne polyurethane.

[0016] Using modified TPU material to make the inner and outer adhesive layers can improve the fatigue resistance and corrosion resistance of the inner and outer adhesive layers; using blended reinforcing fibers and waterborne polyurethane to make the fiber reinforcement layer can increase the mechanical properties of the fiber reinforcement layer and improve its adhesion to the inner and outer adhesive layers.

[0017] Furthermore, the wave energy generation device includes two coaxially arranged horn-shaped shells; each horn-shaped shell has a first opening on the side near the other horn-shaped shell, and a second opening on the side away from the other horn-shaped shell, the first opening being smaller than the second opening; each first opening is equipped with a generator motor, and the end of the generator motor near the second opening is connected to a propeller blade; the generator motor is connected to a transmission line, which is used to transmit the electrical energy generated by the generator motor to the outside of the oil tank hull.

[0018] As a ship sails, it constantly rolls, causing the liquid in the fuel tanks to slosh. This sloshing generates waves, which in turn drive the propeller blades to rotate, thus powering the generator to produce electricity. A wave energy generation device utilizes these waves to generate electricity, converting the kinetic energy of the sloshing liquid into electrical energy. This converted electricity is then transmitted to batteries outside the fuel tanks for storage and further utilization, improving energy efficiency.

[0019] Furthermore, a ladder is provided at the angle between two adjacent sides inside the oil tank shell, and several oil tank entrances are opened at the top of the oil tank shell, with each oil tank entrance located above one of the ladders; each ladder includes two parallel vertical rods, each vertical rod is connected to the inner wall of the oil tank shell by a connecting rod, and the two vertical rods are connected by several horizontal rods; a vertical groove is opened on the side of each vertical rod away from the other vertical rod, and a guide arm is slidably connected to the vertical groove, with the end of the guide arm away from the vertical rod connected to the wave energy power generation device; the power transmission line passes through the inside of the guide arm and is laid along the vertical groove until it extends to the outside of the oil tank.

[0020] Ladders are installed inside the oil tank to facilitate staff access for work. The wave energy generator is slidably connected to the vertical pole to prevent it from impacting the sealing flexible diaphragm and causing damage due to the liquid inside the oil tank.

[0021] Furthermore, several power line retraction devices are installed on the top outer wall of the oil tank hull. Each power line retraction device is connected to a power line, and the output end of each power line passes through the power line retraction device and is connected to the battery. The power line retraction device is used to realize the automatic retraction and deployment of the power lines.

[0022] As the wave energy generator slides along the vertical pole, the transmission line also moves along the vertical pole. The transmission line is retrieved by the transmission line recovery device when the wave energy generator slides upward and released when the wave energy generator slides downward.

[0023] Furthermore, several horizontally arranged "U"-shaped guardrails are connected between the two vertical bars, with the opening of each "U"-shaped guardrail facing the inner wall of the oil tank shell; no "U"-shaped guardrails are installed between the vertical bars and the bottom of the oil tank (0-1.5m).

[0024] Installing U-shaped guardrails provides safety for workers climbing escalators, and the rounded corners of the U-shaped guardrails prevent damage to the sealing flexible diaphragm during contact. The absence of U-shaped guardrails at the bottom of the vertical bars facilitates access for people going up or down the escalator.

[0025] Furthermore, the oil tank also includes a central control module, which includes a data receiving unit, a display screen, an alarm unit, and a management unit. The data receiving unit is used to receive sensing data from temperature and pressure sensors and transmit the received sensing data to the display screen and the alarm unit. The alarm unit is used to determine whether the received sensing data is abnormal and to sound an alarm when the sensing data is abnormal. The management unit is used to control the entry and exit of oil and water, and to number the temperature and pressure sensors.

[0026] The alarm system can promptly alert staff to abnormal data detected by the temperature and pressure sensors, facilitating timely maintenance of the oil tank. By numbering the sensors and associating these numbers with their connection points, the system guides staff to perform precise repairs on the relevant components when abnormal sensor data is detected.

[0027] Furthermore, the oil tank inlet is detachably connected to an oil tank cover via a flange.

[0028] The oil tank cover is connected via a flange, which facilitates its opening and closing.

[0029] Furthermore, the protrusion is made of polytetrafluoroethylene, and the protrusion and the outer adhesive layer are connected by integral thermoplastic molding, and braided wire is embedded at the connection between the protrusion and the outer adhesive layer.

[0030] The use of PTFE to make the protrusions gives them greater rigidity, improving the stability of the connection between the sealing flexible diaphragm and the connector. Braided threads are embedded at the connection between the protrusion and the outer adhesive layer, with both ends of the braided threads located within the protrusion and the outer adhesive layer respectively, thereby enhancing the connection strength between the outer adhesive layer and the protrusion.

[0031] Furthermore, the battery is electrically connected to a pressure sensor and a temperature sensor.

[0032] A battery is connected to the pressure and temperature sensors to power them. There can be one or more batteries, with each pressure or temperature sensor connected to only one battery. Multiple temperature or pressure sensors connected to a single battery are connected in parallel.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0034] (1) This invention provides a rigid-flexible coupling sealed oil-water isolation and replacement ship oil tank. An oil storage chamber is formed within the sealing flexible diaphragm, and the space between the sealing flexible diaphragm and the oil tank shell serves as a water storage tank, thereby achieving oil and water isolation and preventing mutual contamination. When oil is injected into the oil storage chamber within the sealing flexible diaphragm through the oil inlet pipe, the water in the water storage tank is drained through the drain pipe, thus increasing the oil storage capacity while ensuring the ship's ballast requirements. When oil is discharged through the oil outlet pipe, water is injected into the water storage tank through the water inlet pipe, thereby maintaining the liquid volume in the oil tank at the level required for ballast. Connecting the sealing flexible diaphragm with nuts ensures the sealing performance of the diaphragm while facilitating its periodic replacement.

[0035] (2) By arranging the connection ports in a spider web pattern and connecting the sealing flexible diaphragm to the connection ports with nuts, the safety and tightness of the connection of the sealing flexible diaphragm are ensured.

[0036] (3) The wave energy inside the oil tank is converted into electrical energy by the wave energy power generation device and transmitted to the outside of the oil tank through the transmission line for storage and utilization. The electrical energy generated can be used to power the temperature sensor and pressure sensor, which improves the energy utilization rate and achieves self-sufficiency to a certain extent. It has high industry application value and prospects. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the oil tank structure according to an embodiment of the present invention;

[0038] Figure 2 A top view of the oil tank according to an embodiment of the present invention;

[0039] Figure 3 A front view of an oil tank according to an embodiment of the present invention;

[0040] Figure 4 This is a cross-sectional view of a sealing flexible diaphragm according to an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of an escalator structure according to an embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of a wave energy power generation device according to an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of the structure of a power transmission line recycling device according to an embodiment of the present invention;

[0044] Figure 8 This is a schematic diagram of the internal structure of a power transmission line recycling device according to an embodiment of the present invention;

[0045] Figure 9 This is a circuit diagram showing the connection between the battery and the sensor according to an embodiment of the present invention;

[0046] Figure 10 This is a structural composition diagram according to an embodiment of the present invention.

[0047] In the diagram: 1. Oil tank shell; 101. Oil tank cover; 102. Flange; 2. Sealing flexible diaphragm; 201. Inner adhesive layer; 202. Fiber reinforcement layer; 203. Outer adhesive layer; 204. Protrusion; 205. Temperature sensor; 206. Pressure sensor; 3. Nut; 4. Oil inlet / outlet pipes; 5. Water inlet / outlet pipes; 6. Power transmission line recovery device; 601. Fixed shaft; 602. Coil spring; 603. First fixing block; 604. Second fixing block; 605. Through hole; 7. Ladder; 701. Vertical bar; 702. Horizontal bar; 703. "U"-shaped guardrail; 8. Wave energy generation device; 801. Horn-shaped shell; 802. Generator; 803. Propeller blade; 804. Guide arm; 805. Power transmission line. Detailed Implementation

[0048] The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] like Figure 1 , Figure 2 , Figure 3 and Figure 10As shown, this embodiment provides a rigid-flexible coupling sealed oil-water isolation replacement ship oil tank, including an oil tank shell 1. In this embodiment, the oil tank shell 1 adopts a steel structure, with a rectangular longitudinal section and a square transverse section. The top of the oil tank shell 1 has several connection ports, which are arranged in a spider web pattern, presenting an overall layout that is dense on the outside and sparse on the inside. Each connection port is provided with a nut 3.

[0053] A sealing flexible diaphragm 2 is provided inside the oil tank shell 1, and an oil storage cavity is formed within the sealing flexible diaphragm 2; such as Figure 4 As shown, the sealing flexible diaphragm 2 includes an outer adhesive layer 203, a fiber reinforcement layer 202, and an inner adhesive layer 201 arranged from the outside to the inside (the sealing flexible diaphragm itself is formed by bonding the outer adhesive layer 203, the fiber reinforcement layer 202, and the inner adhesive layer 201 together in sequence). The outer adhesive layer 203 is made of modified polyester TPU, which is composed of blended polyether TPU, ethylene terpolymer, and antioxidants, improving the water resistance, corrosion resistance, and fatigue resistance of the outer adhesive layer 203. The inner adhesive layer 201 is also made of modified polyester TPU, which is composed of blended polyester TPU, silicone resin, and nano-kaolin, improving the oil resistance, jet fuel resistance, flame retardancy, and fatigue resistance of the inner adhesive layer 201. The fiber reinforcement layer 202 is made of blended reinforcing fibers and waterborne polyurethane, which improves the mechanical properties of the reinforcement layer and its adhesion to the inner adhesive layer 201 and the outer adhesive layer 203.

[0054] The outer adhesive layer 203 at the top of the sealing flexible diaphragm 2 is sealed to the connection port via a nut 3. Specifically, the outer adhesive layer 203 is provided with several protrusions 204 corresponding to the positions of the connection ports, and the outer diameter of the protrusions 204 is adapted to the inner diameter of the nut 3. Each of the protrusions 204 has a thread on its side, and the thread is adapted to the nut 3. Each of the protrusions 204 passes through a connection port and is connected to the nut 3. The shape and position of each protrusion 204 are adapted to a connection port. After the protrusions 204 pass through the connection port, they are screwed to the nut 3, thereby connecting the sealing flexible diaphragm 2 to the top of the oil tank shell 1.

[0055] In a preferred embodiment, the protrusion 204 is made of polytetrafluoroethylene (PTFE), and the protrusion 204 and the outer adhesive layer 203 are connected by integral thermoplastic molding. Using PTFE to make the protrusion 204 gives it greater rigidity, improving the stability of the connection between the sealing flexible diaphragm 2 and the connection port. Braided threads are embedded inside the protrusion 204 to increase its toughness.

[0056] The fiber reinforcement layer 202 is provided with a plurality of pressure sensors 206 and a plurality of temperature sensors 205. Each pressure sensor 206 is located below a protrusion 204, and each temperature sensor 205 is located below a protrusion 204.

[0057] The oil tank shell 1 is also provided with an oil inlet / outlet pipe 4, which is connected to the interior of the sealing flexible diaphragm 2; the oil tank shell 1 is also provided with a water inlet / outlet pipe 5, which is connected to the interior of the oil tank shell 1.

[0058] The oil tank hull 1 is equipped with several wave energy generation devices 8, such as... Figure 6 As shown, the wave energy generation device 8 includes two coaxially arranged horn-shaped outer shells 801; each horn-shaped outer shell 801 has a first opening on the side near the other horn-shaped outer shell 801, and a second opening on the side away from the other horn-shaped outer shell 801, the first opening being smaller than the second opening; a generator 802 is installed at each of the first openings, and a propeller blade 803 is connected to the end of the generator 802 near the second opening; the generator 802 is connected to a transmission line 805, which is used to transmit the electrical energy generated by the generator 802 to the outside of the oil tank hull 1. A storage battery is installed outside the oil tank hull 1, and the electrical energy output by the transmission line 805 is stored in the storage battery.

[0059] The horn-shaped outer shell 801 is made of high-molecular-weight polyethylene and other materials, which has good weather resistance and impact resistance, and can resist ultraviolet rays, freezing, seawater chemicals, oil stains and other corrosion. The shell of the horn-shaped outer shell 801 has a certain thickness and is filled with gas, so that the horn-shaped outer shell 801 can float on the surface of the water under the action of buoyancy, driving the wave energy generator 8 to rise and fall with the rise and fall of the water level.

[0060] The horn-shaped hull 801 has a larger inlet diameter and a smaller outlet diameter, which can better absorb the wave energy generated during the ship's rolling motion.

[0061] The generator 802 is existing technology. Besides bearings, it includes a stator, rotor, and end covers. The stator consists of a stator core, coil windings, a frame, and other structural components that fix these parts. The rotor consists of a rotor core or magnetic poles, a magnetic yoke winding, retaining rings, a center ring, slip rings, a fan, and a shaft. The bearings and end covers connect and assemble the generator's stator and rotor, allowing the rotor to rotate within the stator and cut magnetic lines of force, thereby generating an induced electromotive force. This induced electromotive force is then led out through terminals and connected to a circuit, thus producing a current.

[0062] The propeller blade 803 includes six spiral blades, which are fixedly connected to the propeller shaft by welding. The propeller shaft is connected to the bearing of the generator motor 802.

[0063] The transmission line 805 is covered with an insulating material, which has properties such as tensile strength, water pressure resistance, impact resistance, salt corrosion resistance, wear resistance, waterproofing, and long service life.

[0064] In a preferred embodiment, ladders 7 are provided at the included angles of two adjacent sides inside the oil tank shell 1 (i.e., ladders 7 are located at the four corners inside the oil tank shell). Several oil tank inlets are provided at the top of the oil tank shell 1, each inlet being located above one of the ladders 7. Each oil tank inlet is detachably connected to an oil tank cover 101 via a flange 102. Figure 5 As shown, each of the escalators 7 includes two parallel vertical rods 701, each vertical rod 701 is connected to the inner wall of the oil tank shell 1 by a connecting rod, and the two vertical rods 701 are connected by several horizontal rods 702; a vertical groove is provided on the side of each vertical rod 701 away from the other vertical rod 701, and a guide arm 804 is slidably connected on the vertical groove, the end of the guide arm 804 away from the vertical rod 701 is connected to the wave energy power generation device 8; the power transmission line 805 passes through the inside of the guide arm 804 and is laid along the vertical groove until it extends to the outside of the oil tank.

[0065] A ladder 7 is installed inside the oil tank to facilitate staff access for work. The wave energy generator 8 is slidably connected to the vertical rod 701 to prevent it from impacting the sealing flexible diaphragm 2 due to the liquid inside the oil tank, thus preventing damage to the sealing flexible diaphragm 2.

[0066] In a preferred embodiment, a plurality of power line recovery devices 6 are provided on the top outer wall of the oil tank shell 1. Each power line recovery device 6 is connected to a power line 805. The output end of each power line 805 passes through the power line recovery device 6 and is connected to the battery.

[0067] like Figure 7 and Figure 8As shown, the power transmission line recycling device 6 includes a fixed shaft 601 and a housing. One end of the fixed shaft 601, perpendicular to the axis, is coaxially fixedly connected to the inner wall of the housing. A coil spring 602 is fitted over the fixed shaft 601, and the inner ring of the coil spring 602 is fixedly connected to the outer wall of the fixed shaft 601. A first fixing block 603 is welded to the end of the coil spring 602 away from the fixed shaft 601. A through hole 605 is provided on the fixed shaft 601, and the through hole 605 is coaxial with the fixed shaft 601. An outlet is provided on the housing of the power transmission line recycling device 6, communicating with the through hole 605. A second fixing block 604 is provided on the end face of the fixed shaft 601 that is not connected to the inner wall of the housing, and the second fixing block 604 is close to the through hole 605.

[0068] Both the first fixing block 603 and the second fixing block 604 have circular holes that match the outer diameter of the transmission line 805. The transmission line 805 passes through the first fixing block 603 and the second fixing block 604 in sequence and is fixedly connected to the first fixing block 603 and the second fixing block 604 (in this embodiment, plastic welding is used to fix the transmission line to the first fixing block 603 and the second fixing block 604). After passing through the second fixing block 604, the transmission line 805 passes through the through hole 605 and the outlet on the outer casing of the transmission line recycling device in sequence, and finally connects to the battery.

[0069] When the coil spring 602 is in its most relaxed state (i.e., when the outer ring of the coil spring 602 is furthest from the fixed shaft 601), the length of the transmission line 805 between the first fixed block 603 and the second fixed block 604 is slightly greater than the distance between the axis of the fixed shaft 601 and the outer ring of the coil spring 602. Figure 8 The diagram illustrates the situation when the power transmission line 805 is fully pulled out of the power transmission line recovery device 6. At this time, the coil spring 602 is in a compressed state, accumulating a certain amount of elastic potential energy. Several turns of the power transmission line 805 (not shown in the diagram) are wound around the second fixing block 604. When the external pulling force on the power transmission line 805 decreases, under the action of the elastic potential energy of the coil spring 602, the coil spring 602 begins to rotate and expands away from the fixed axis 601, thereby driving the power transmission line 805 to wind around the outer ring of the coil spring 602, realizing the recovery of the power transmission line. At the same time, the power transmission line 805 wound around the second fixing block 604 is released from the second fixing block 604. Conversely, when the external pulling force on the power transmission line 805 increases, the coil spring 602 is tightened, thereby releasing the power transmission line 805. At the same time, the power transmission line 805 located between the first fixing block 603 and the second fixing block 604 winds around the second fixing block 604 as the rotation process proceeds.

[0070] When the wave energy generator 8 slides along the vertical rod 701, the transmission line 805 also moves along the vertical rod 701. The transmission line 805 is retracted when the wave energy generator 8 slides upward by the elastic force of the coil spring 602 in the transmission line 805 recovery device 6, and released when the wave energy generator 8 slides downward.

[0071] In addition to the above-mentioned wire recycling device, a retractable plug for a power cord, disclosed in Chinese Patent No. CN210490007U on May 8, 2020, can also be used. To achieve the technical effect of this embodiment, the wire pins in the above patent need to be replaced with wires connected to the storage battery.

[0072] In a preferred embodiment, a plurality of horizontally arranged "U"-shaped guardrails 703 are connected between the two vertical bars 701, with the opening of each "U"-shaped guardrail 703 facing the inner wall of the oil tank shell 1. No "U"-shaped guardrails are installed between the vertical bars 701 and the bottom of the oil tank (0-1.5m), allowing for the entry and exit of maintenance personnel.

[0073] The installation of "U"-shaped guardrails 703 provides safety for workers climbing escalator 7.

[0074] In a preferred embodiment, the fiber reinforcement layer 202 is provided with a plurality of pressure sensors 206 and a plurality of temperature sensors 205, each of the pressure sensors 206 being located below a protrusion 204, and each of the temperature sensors 205 being located below a protrusion 204.

[0075] Temperature sensor 205 can sense the temperature inside the sealed flexible diaphragm 2 to prevent abnormal temperature from causing the oil inside the sealed flexible diaphragm 2 to solidify or vaporize too quickly, thus ensuring the safety of the oil storage chamber; pressure sensor 206 can sense the tension borne by the sealed flexible diaphragm 2 to detect in a timely manner any detachment phenomenon that occurs at the connection between the sealed flexible diaphragm 2 and the oil tank shell 1.

[0076] In a preferred embodiment, the oil tank further includes a central control module, which includes a data receiving unit, a display screen, an alarm unit, and a management unit. The data receiving unit receives sensing data from the temperature sensor 205 and the pressure sensor 206, and transmits the received sensing data to the display screen and the alarm unit. The alarm unit determines whether the received sensing data is abnormal and issues an alarm when the sensing data is abnormal. The management unit controls the entry and exit of oil and water, and assigns numbers to the temperature sensor 205 and the pressure sensor 206.

[0077] The alarm device can promptly alert staff to abnormal data detected by temperature sensor 205 and pressure sensor 206, facilitating timely maintenance of the oil tank. By numbering the sensors and associating these numbers with their connection points, the device guides staff to perform necessary repairs when sensor data becomes abnormal.

[0078] In a preferred embodiment, the oil tank inlet is detachably connected to an oil tank cover 101 via a flange 102.

[0079] As a preferred embodiment, the protrusion 204 is made of polytetrafluoroethylene, and the protrusion 204 and the outer adhesive layer 203 are connected by integral thermoplastic molding; and braided wire is embedded at the connection between the protrusion and the outer adhesive layer.

[0080] In a preferred embodiment, the battery is electrically connected to the pressure sensor 206 and the temperature sensor 205, and the connection circuit between the battery and each sensor is as follows: Figure 9 As shown, Figure 9 Each rectangle in the diagram represents a pressure sensor or a temperature sensor.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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 or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention.

Claims

1. A rigid-flexible coupling sealed oil-water isolation and displacement marine oil tank, characterized in that, The tank includes an oil tank shell, the top of which has several connection ports arranged in a spider web pattern; each connection port is provided with a nut. The oil tank shell is equipped with a sealing flexible diaphragm, and an oil storage cavity is formed within the sealing flexible diaphragm. The sealing flexible diaphragm includes an outer adhesive layer, a fiber reinforcement layer, and an inner adhesive layer arranged from the outside to the inside. The outer adhesive layer is provided with several protrusions corresponding to the positions of the connection ports. Each of the protrusions is provided with threads on its side, and the threads are adapted to fit a nut. Each of the protrusions passes through a connection port and is connected to the nut. Several pressure sensors and several temperature sensors are arranged on the fiber reinforcement layer. Each pressure sensor is located below a protrusion, and each temperature sensor is located below a protrusion. The oil tank shell is also provided with oil inlet and outlet pipes, which are connected to the interior of the sealing flexible diaphragm; the oil tank shell is also provided with water inlet and outlet pipes, which are connected to the interior of the oil tank shell. The oil tank hull is equipped with several wave energy generation devices, each wave energy generation device comprising two coaxially arranged horn-shaped shells; each horn-shaped shell has a first opening on the side near the other horn-shaped shell, and each first opening is equipped with a generator motor, the generator motor being connected to a power transmission line; A ladder is provided at the angle between two adjacent sides inside the oil tank shell. Several oil tank entrances are opened at the top of the oil tank shell, and each oil tank entrance is located above one of the ladders. Each ladder includes two parallel vertical bars, each vertical bar is connected to the inner wall of the oil tank shell by a connecting rod, and the two vertical bars are connected by several horizontal bars. A vertical groove is opened on the side of each vertical bar away from the other vertical bar. A guide arm is slidably connected to the vertical groove. The end of the guide arm away from the vertical bar is connected to the wave energy power generation device. The power transmission line passes through the inside of the guide arm and is laid along the vertical groove until it extends to the outside of the oil tank.

2. The rigid-flexible coupling seal for oil-water isolation and replacement of ship oil tanks according to claim 1, characterized in that, Both the outer and inner adhesive layers are made of modified polyester TPU material; the fiber reinforcement layer is made of blended reinforcing fibers and waterborne polyurethane.

3. The rigid-flexible coupling seal for oil-water isolation and replacement of ship oil tanks according to claim 1, characterized in that, Each horn-shaped outer shell has a second opening on the side away from the other horn-shaped outer shell, and the first opening is smaller than the second opening; a propeller blade is connected to one end of the generator near the second opening; the power transmission line is used to transmit the electrical energy generated by the generator to the outside of the oil tank hull.

4. The rigid-flexible coupling seal for oil-water isolation and replacement of ship oil tanks according to claim 1, characterized in that, Several power line recovery devices are installed on the top outer wall of the oil tank hull. Each power line recovery device is connected to a power line, and the output end of each power line passes through the power line recovery device and is connected to the battery.

5. The rigid-flexible coupling seal for oil-water isolation and replacement of ship oil tanks according to claim 1, characterized in that, Several horizontally arranged "U"-shaped guardrails are connected between the two vertical bars, and the opening of each "U"-shaped guardrail faces the inner wall of the oil tank shell; no "U"-shaped guardrails are installed between the vertical bars and the bottom of the oil tank (0-1.5m).

6. The rigid-flexible coupling seal for oil-water isolation and displacement of a ship's oil tank according to claim 5, characterized in that, The oil tank also includes a central control module, which includes a data receiving unit, a display screen, an alarm unit, and a management unit. The data receiving unit is used to receive sensing data from temperature and pressure sensors and transmit the received sensing data to the display screen and the alarm unit. The alarm unit is used to determine whether the received sensing data is abnormal and to sound an alarm when the sensing data is abnormal. The management unit is used to control the entry and exit of oil and water, and to number the temperature and pressure sensors.

7. The rigid-flexible coupling seal for oil-water isolation and replacement of ship oil tanks according to claim 1, characterized in that, The oil tank inlet is detachably connected to an oil tank cover via a flange.

8. The rigid-flexible coupling seal for oil-water isolation and displacement of a ship's oil tank according to claim 2, characterized in that, The protrusion is made of polytetrafluoroethylene. The protrusion and the outer adhesive layer are connected by integral thermoplastic molding, and braided wire is embedded at the connection between the protrusion and the outer adhesive layer.

9. A rigid-flexible coupling sealed oil-water isolation and replacement ship oil tank according to claim 4, characterized in that, The battery is electrically connected to the pressure sensor and the temperature sensor.

Images