Ocean structure buffer protection device giving consideration to power generation and control method

Abstract

The invention provides an ocean structure buffer protection device giving consideration to power generation and a control method. The ocean structure buffer protection device comprises an air bag buffer unit, a bidirectional power generation unit and an energy storage unit. The air bag buffering unit is arranged on an ocean structure and connected with the bidirectional power generation unit through a first pipeline provided with a pipeline control switch. Gas in the airbag buffer unit flows to drive the bidirectional power generation unit to generate power; the airbag buffer unit comprises a fixed base, an electromagnet, a spring and an airbag; the fixed base is fixed on an ocean structure; the air bag is arranged on the fixed base to form a closed space; and one end of each spring is fixed on the fixed base, and the other end of each spring is connected with the air bag through an electromagnet. The device has the functions of buffering protection and power generation, and marine structures are protected while ship berthing is facilitated.

Description

Technical Field

[0001] The present invention relates to a buffer protection device for marine structures, specifically a buffer protection device for marine structures that combines power generation and its control method, belonging to the technical field of marine structures. Background Art

[0002] Driven by the "3060" goal, the development of related industries in the field of marine energy is advancing rapidly. The construction materials of marine structures and the operation and maintenance of related facilities are all inseparable from ships. The docking of ships will not only generate an instantaneous impact force on the structure, but also bring a reciprocating impact force to the structure with the movement of the waves after the ship docks. Both situations will lead to a decrease in the service life, stability, and safety of the structure, and in severe cases, it will cause damage to the structure.

[0003] Traditional ship buffer protection devices are composed of waste tires or rubber fenders. Although they can reduce the impact force of ships, the absorbed energy will be dissipated by itself, resulting in a waste of energy. The acquisition of energy is crucial for marine structures with tight power supply. At the same time, there are also problems with the applicability between new marine structures and traditional buffer protection devices. Summary of the Invention

[0004] In view of this, the present invention provides a buffer protection device for marine structures that combines power generation. A bidirectional power generation unit is added to the buffer protection device, which can convert the energy absorbed by the buffer protection device into the energy storage unit through the bidirectional power generation unit or directly supply power to electrical equipment.

[0005] The technical solution of the present invention is: a buffer protection device for marine structures that combines power generation, including: an airbag buffer unit, a bidirectional power generation unit, and an energy storage unit;

[0006] The airbag buffer unit is arranged on the marine structure and is connected to the bidirectional power generation unit through a first pipeline provided with a pipeline control switch; the bidirectional power generation unit is driven to generate electricity by the flow of gas in the airbag buffer unit;

[0007] The bidirectional power generation unit is electrically connected to the energy storage unit and electrical equipment respectively;

[0008] The airbag buffer unit includes: a fixed base, an electromagnet, a spring, and an airbag;

[0009] The fixed base is fixed on the marine structure; the airbag is arranged on the fixed base to form a closed space;

[0010] Several springs are arranged inside the closed space. One end of the spring is fixed on the fixed base, and the other end is connected to the airbag through an electromagnet.

[0011] As a preferred embodiment of the present invention, it further includes a pressure monitoring module and a pressure supplement unit;

[0012] The pressure monitoring module is used to monitor the internal pressure of the airbag buffer unit in real time;

[0013] The pressure supplement unit is connected to the airbag buffer unit through a pipeline provided with a one-way valve.

[0014] As a preferred embodiment of the present invention, it further includes a sensing unit for judging whether a ship is docked.

[0015] As a preferred embodiment of the present invention, the bidirectional power generation unit is an impulse turbine generator for bidirectional power generation.

[0016] In addition, the present invention also provides a control method for the buffer protection device of the marine structure that takes into account power generation, using the above-mentioned buffer protection device of the marine structure that takes into account power generation;

[0017] When there is no ship docking, the electromagnet is not energized, and the pipeline control switch is closed;

[0018] When a ship docks, the electromagnet is energized, and the pipeline control switch is opened. Thus, when the ship approaches the marine structure, it squeezes the airbag buffer unit, the spring stores elastic potential energy, and the electromagnet adsorbs the ship; at the same time, the gas flow in the airbag buffer unit drives the bidirectional power generation unit to rotate forward for power generation;

[0019] When the ship moves away from the marine structure under the action of waves, the ship stretches the airbag buffer unit due to the adsorption of the electromagnet, and the gas flow in the airbag buffer unit drives the bidirectional power generation unit to rotate in reverse for power generation.

[0020] As a preferred embodiment of the present invention, when there is no ship docking, the pressure monitoring module provided inside the airbag buffer unit monitors the internal pressure of the airbag buffer unit in real time and judges whether its internal pressure is lower than the set value A:

[0021] When the internal pressure of the airbag buffer unit is lower than the set value A, it is further judged whether the capacity of the energy storage unit is lower than the set standard A. If the capacity of the energy storage unit is lower than the set standard A, it indicates that the stored energy of the energy storage unit is insufficient. At this time, the power supply inside the marine structure supplies power to the pressure supplement unit, and the pressure supplement unit is started to supplement gas into the airbag buffer unit until the internal pressure of the airbag buffer unit is not lower than the set value A;

[0022] If the capacity of the energy storage unit is not lower than the set standard A, it indicates that the stored energy of the energy storage unit is sufficient. At this time, the energy storage unit supplies power to the pressure supplement unit, and the pressure supplement unit is started to supplement gas into the airbag buffer unit until the internal pressure of the airbag buffer unit is not lower than the set value A.

[0023] Beneficial effects:

[0024] (1) In the buffer protection device of the present invention, a two-way power generation unit is added, which can convert the dissipated energy during the buffering process into electrical energy, thereby realizing the effective utilization of energy; and through the conversion of energy, the force on the structure of the device can be reduced; the present invention can be installed on structures such as offshore photovoltaic and offshore wind power, and has broad application prospects.

[0025] (2) In the buffer protection device of the present invention, a spring and an electromagnet are arranged in the airbag buffer unit. Adding a spring in the airbag can provide better buffering. When the ship squeezes the airbag, the spring can share the stress of the airbag and absorb part of the kinetic energy. At the same time, the spring can store and convert energy, making the two-way power generation unit generate electricity more stably;

[0026] Adding an electromagnet in the airbag can adsorb the ship approaching the device, that is, it can make the ship better adsorbed on the airbag to maintain the stability of the ship's docking; at the same time, when the ship moves away from the offshore structure under the action of waves, it can stretch the airbag buffer unit, so that the gas in the closed space flows rapidly to drive the two-way power generation unit to generate electricity. Thus, under the reciprocating action of waves, the ship moves away from and approaches the airbag buffer unit to drive the motor of the two-way power generation unit to generate electricity; that is, by using the electromagnet to adsorb the ship, the ship can reciprocally squeeze the airbag to generate electricity as it moves with the waves, improving the energy utilization rate (if the electromagnet is not used to adsorb, the ship will separate from the airbag, resulting in low energy utilization rate).

[0027] (3) In the buffer protection device of the present invention, a pressure monitoring module for real-time monitoring of the internal air pressure of the airbag buffer unit and a pressure supplement unit capable of inflating the inside of the airbag buffer unit are provided to ensure the stability of the internal air pressure of the airbag buffer unit, enabling it to provide a stable buffering effect and ensuring sufficient air flow inside the airbag buffer unit. Description of the drawings

[0028] Figure 1 It is the overall schematic diagram of the buffer protection device for offshore structures that takes into account power generation of the present invention;

[0029] Figure 2 It is the flowchart of the control method of the present invention.

[0030] Among them: 1: airbag buffer unit, 1-1: electromagnet, 1-2 spring, 1-3: rubber film, 1-4: pressure monitoring module, 1-5: air vent hole, 2: pressure supplement unit, 3: one-way valve, 4: pipeline control switch, 5: energy storage unit, 6-1: first pipeline, 6-2: second pipeline, 7: impulse turbine generator, 8: electrical equipment. Detailed implementation manners

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] This embodiment provides a marine structure buffer protection device that combines power generation with buffer protection, which facilitates the docking of ships while protecting marine structures. It can also convert energy that needs to be dissipated into electrical energy, thereby making effective use of energy.

[0033] like Figure 1 As shown, the marine structure buffering and protection device includes: an airbag buffering unit 1, a bidirectional power generation unit and an energy storage unit 5.

[0034] The air guide holes 1-5 on the airbag cushioning unit 1 are connected to the bidirectional power generation unit through the first pipe 6-1; a pipe control switch 4 is installed in the first pipe 6-1 to control the on and off of the first pipe 6-1; the bidirectional power generation unit is respectively connected to the energy storage unit 5 and the electrical equipment 8, and the energy storage unit 5 is used to store the electrical energy generated by the bidirectional power generation unit. At the same time, the electrical energy generated by the bidirectional power generation unit can also be directly provided to the electrical equipment 8.

[0035] As an example, the bidirectional power generation unit is an impulse turbine generator 7 for bidirectional power generation.

[0036] The first pipeline 6-1 between the pipeline control switch 4 and the air guide hole 1-5 leads to the second pipeline 6-2 connected to the air pressure supplement unit 2 (that is, the air pressure supplement unit is connected to the first pipeline 6-1 through the second pipeline 6-2); a one-way valve 3 is installed in the second pipeline 6-2, and the one-way valve 3 ensures that the gas can only flow from the air pressure supplement unit 2 to the airbag cushion unit 1. The air pressure supplement unit 2 is powered by the energy storage unit 5 or the power supply in the marine structure.

[0037] The airbag cushioning unit 1 includes: a fixed base, an electromagnet 1-1, a spring 1-2, an airbag, and an air pressure monitoring module 1-4; the fixed base is fixed to a flat or arc-shaped marine structure by bolts (the fixed base can be divided into a flat bottom shape and an arc shape according to the type of installation structure); the rubber film 1-3 is installed on the fixed base to form a closed space with the fixed base, and the closed space is inflated to form an airbag; the air pressure monitoring module 1-4 is installed on the fixed base, located inside the closed space, and is used to monitor the air pressure inside the closed space in real time. A number of springs 1-2 are arranged inside the closed space, one end of the spring 1-2 is fixed to the fixed base, and the other end is connected to the electromagnet 1-1, and the electromagnet 1-1 is adhered to the rubber film 12 (i.e. Figure 1 As shown, the length direction of the spring 1-2 is parallel to the length direction of the first pipe 6-1). The electromagnet 1-1 is powered by a power source in the marine structure. The spring 1-2 is used to absorb and release energy, buffer impact force and restore the airbag shape; the electromagnet 1-1 is used to absorb the ship when the ship is docked.

[0038] In addition, a sensing unit (such as a radar) is provided on the buffer protection device to determine whether a ship is docked; as an example, the sensor unit is arranged in the enclosed space between the rubber film 1-3 and the fixed base.

[0039] As an example, the on-off of the pipeline control switch 4, the air pressure supplement unit 2, and the electromagnet 1-1 are all controlled by an electromechanical control unit arranged inside the marine structure; the sensing unit and the air pressure monitoring module 1-4 are both electrically connected to the electromechanical control unit to send the detected signals to the electromechanical control unit.

[0040] The above-mentioned bidirectional power generation unit, energy storage unit 5, and air pressure supplement unit 2 are all located inside the marine structure to avoid corrosion.

[0041] The working principle of the buffer protection device for the marine structure is as follows:

[0042] As Figure 2 shown, after the equipment is started, the sensing unit continuously judges whether a ship is approaching. When there is no ship docking, the electromagnet 1-1 is not powered on, and the pipeline control switch 4 is closed; at the same time, the air pressure monitoring module 1-4 continuously monitors the air pressure inside the enclosed space and judges whether the air pressure inside the enclosed space is lower than the set value A. When the air pressure inside the enclosed space is lower than the set value A, it further judges whether the capacity of the energy storage unit 5 is lower than the set standard A (used to determine whether the air pressure supplement unit 2 is powered by the energy storage unit 5 or the power supply inside the marine structure). If the capacity of the energy storage unit 5 is lower than the set standard A, it indicates that the stored energy of the energy storage unit 5 is insufficient. At this time, the air pressure supplement unit 2 is powered by the power supply inside the marine structure, and the air pressure supplement unit 2 is started to supplement gas into the enclosed space until the air pressure inside the enclosed space is not lower than the set value A; if the capacity of the energy storage unit 5 is not lower than the set standard A, it indicates that the stored energy of the energy storage unit 5 is sufficient. At this time, the air pressure supplement unit 2 is powered by the energy storage unit 5, and the air pressure supplement unit 2 is started to supplement gas into the enclosed space until the air pressure inside the enclosed space is not lower than the set value A.

[0043] When the sensing unit determines that a ship is docking, the electromagnet 1-1 is powered on and the pipeline control switch 4 is opened. Thus, when the ship approaches the marine structure, it will squeeze the airbag buffer unit 1, and the spring 1-2 stores elastic potential energy. The electromagnet 1-1 adsorbs the ship. At the same time, the rapid flow of gas in the enclosed space drives the impulse turbine generator 7 to rotate forward to generate electricity, and the generated electric energy is supplied to the electrical equipment 8 or / and stored in the energy storage unit 5. Specifically: the electricity generated by the impulse turbine generator 7 is preferentially supplied to the electrical equipment 8, that is, when it is determined that there is electrical equipment 8 that needs to be powered, the electricity generated by the impulse turbine generator 7 is preferentially supplied to the electrical equipment 8 that needs to be powered. At the same time, it is judged whether the capacity of the energy storage unit 5 is lower than the set standard B (used to determine whether the energy storage unit 5 needs to be charged). When the capacity of the energy storage unit 5 is lower than the set standard B, the energy storage unit 5 is charged at the same time, otherwise, the energy storage unit 5 is not charged.

[0044] When the ship moves away from the marine structure under the action of waves, the elastic potential energy stored in the spring 1-2 is released. At the same time, due to the adsorption of the electromagnet 1-1 by the ship, the airbag buffer unit 1 is stretched, and the rapid flow of gas in the enclosed space drives the impulse turbine generator 7 to rotate in reverse to generate electricity, and the generated electric energy is supplied to the electrical equipment 8 or stored in the energy storage unit 5. Thus, under the reciprocating action of the waves, the ship moves away from and approaches the airbag buffer unit 1 to drive the impulse turbine generator to generate electricity.

[0045] The impulse turbine generator 7 is added to the buffer protection device to convert the energy that needs to be dissipated into electric energy and effectively utilize the energy. At the same time, the buffer protection function of the device is retained, and through the conversion of energy, the impact force of the device on the structure is reduced. This device can be installed on structures such as offshore photovoltaic and offshore wind power, and has broad application prospects.

[0046] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. An ocean structure buffer protection device that takes power generation into account, characterized in that: include: An airbag cushioning unit (1), a bidirectional power generation unit and an energy storage unit (5); The airbag cushioning unit (1) is arranged on a marine structure and is connected to a bidirectional power generation unit via a first pipeline (6-1) provided with a pipeline control switch (4); the bidirectional power generation unit is driven to generate electricity by the flow of gas in the airbag cushioning unit (1); The bidirectional power generation unit is electrically connected to the energy storage unit (5) and the power consumption device (8) respectively; The airbag cushioning unit (1) comprises: a fixed base, an electromagnet (1-1), a spring (1-2) and an airbag; The fixed base is fixed on the marine structure; the air bag is arranged on the fixed base to form a closed space; A plurality of springs (1-2) are arranged inside the closed space, one end of the spring (1-2) is fixed on a fixed base, and the other end is connected to the airbag via an electromagnet (1-1).

2. The buffer protection device for a marine structure that takes into account power generation according to claim 1, characterized in that: It also includes an air pressure monitoring module (1-4) and an air pressure replenishing unit (2); The air pressure monitoring module (1-4) is used to monitor the internal air pressure of the airbag cushioning unit (1) in real time; The air pressure supplement unit (2) is connected to the airbag cushioning unit (1) via a pipeline provided with a one-way valve.

3. The buffer protection device for marine structures considering power generation according to claim 1 or 2, characterized in that: It also includes a sensor unit for determining whether a ship is docked.

4. The buffer protection device for marine structures that takes into account power generation according to claim 1 or 2, characterized in that: The bidirectional power generation unit is an impulse turbine generator (7) capable of bidirectional power generation.

5. Control method of buffer protection device for ocean structures considering power generation, characterized in that: A marine structure buffer protection device for power generation as described in any one of claims 1 to 4; When no ship is docked, the electromagnet (1-1) is not energized and the pipeline control switch (4) is closed; When a ship is docked, the electromagnet (1-1) is energized and the pipeline control switch (4) is turned on, so that when the ship approaches the marine structure, the airbag buffer unit (1) is squeezed, the spring (1-2) stores elastic potential energy, and the electromagnet (1-1) absorbs the ship; at the same time, the gas flow in the airbag buffer unit (1) drives the bidirectional power generation unit to generate electricity in the forward direction; When the ship moves away from the marine structure due to the action of waves, the ship stretches the airbag cushioning unit (1) due to the adsorption electromagnet (1-1), and the gas flow in the airbag cushioning unit (1) drives the bidirectional power generation unit to reverse and generate electricity.

6. The control method of the marine structure buffer protection device that takes into account power generation according to claim 5, characterized in that: When no ship is docked, the air pressure monitoring module (1-4) arranged inside the airbag cushioning unit (1) monitors the air pressure inside the airbag cushioning unit (1) in real time, and determines whether the air pressure inside the airbag cushioning unit (1) is lower than a set value A: When the internal air pressure of the airbag cushioning unit (1) is lower than the set value A, it is further determined whether the capacity of the energy storage unit (5) is lower than the set standard A. If the capacity of the energy storage unit (5) is lower than the set standard A, it indicates that the energy storage unit (5) has insufficient storage capacity. At this time, the air pressure replenishing unit (2) is powered by the power supply in the marine structure, and the air pressure replenishing unit (2) is started to replenish air into the airbag cushioning unit (1) until the internal air pressure of the airbag cushioning unit (1) is not lower than the set value A. If the capacity of the energy storage unit (5) is not less than the set standard A, it indicates that the energy storage capacity of the energy storage unit (5) is sufficient. At this time, the energy storage unit (5) powers the air pressure supplement unit (2) to start the air pressure supplement unit (2) and supplement gas into the airbag buffer unit (1) until the internal air pressure of the airbag buffer unit (1) is not less than the set value A.

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