Anti-typhoon anchoring system of wave energy device

Abstract

The invention relates to the technical field of ocean platform anchoring, and particularly discloses a wave energy device anti-typhoon anchoring system which comprises a wave energy device floating body structure, a constant-pressure phase change energy storage device, an anchor chain and an anchor. The constant-pressure phase-change energy storage device is arranged in the floating body structure of the wave energy device and comprises a shell, a partition plate is arranged in the shell and divides the interior of the shell into a first cavity and a second cavity, a pressure spring tension rod component is arranged in the first cavity, at least part of the pressure spring tension rod component extends to the outer side of the shell, and the pressure spring tension rod component is arranged in the second cavity. An air bag type constant-pressure component is arranged in the second cavity, and the pressure spring tension rod component can act on the air bag type constant-pressure component; one end of the anchor chain is connected with the part, extending to the outer side of the shell, of the pressure spring tension rod component; the anchor is connected to one end of the anchor chain away from the pressure spring tension bar component. The problem of shallow water typhoon resistance of the anchoring system can be solved, safe and long-term use of key components of the anchoring system can be guaranteed, the service life is prolonged, and the safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of marine platform anchoring, and in particular to a typhoon-resistant anchoring system for a wave energy device. Background Art

[0002] Ocean wave energy is an inexhaustible and abundant renewable energy. In recent years, with the continuous exploration of marine renewable energy by human beings and the rapid development of marine wave energy technology, many floating wave energy devices at home and abroad have achieved power generation and operation in real sea conditions. Wave energy devices are developing towards long-term stable operation in the deep sea. my country's coastal environmental conditions are harsh, and typhoons occur frequently, accounting for an average of more than 25% of the number of typhoons in the Northern Hemisphere each year. At the same time, the average water depth within 100 kilometers along the coast of my country is only 60 meters. The continental slope of the coastal waters is relatively gentle, and the extension range to the open sea is wide. The port water depth is limited, and it is easily affected by wave shallow water deformation and climbing, resulting in an increase in the amplitude of movement, which brings great difficulties to the typhoon-resistant mooring design of wave energy devices.

[0003] The traditional mooring system of wave energy power generation devices is mainly a catenary mooring system, which mainly buffers the low-frequency drift force of waves through the gravitational potential energy of the catenary material and the overall stretching of the catenary. Under the action of waves, the floating structure is continuously subjected to the first-order force and the second-order force of the waves, causing the floating platform to drift, and causing the catenary of the mooring system to deform and cause the mooring cable to be stressed. In typhoon sea conditions, the mooring cable tends to be straightened and tightened, which can easily cause the anchor chain to break or drag the anchor. If in shallow water, the mooring cable is limited by the energy storage capacity of the mooring system itself, and the system lacks sufficient energy storage and impact resistance, which can easily cause the mooring system to fail. Summary of the invention

[0004] The technical problem to be solved by the present invention is: how to solve the problem that the traditional catenary mooring system is difficult to resist typhoons in shallow water conditions.

[0005] In order to solve the above technical problems, the present invention provides a typhoon-resistant mooring system for a wave energy device, which has a first direction and includes:

[0006] Floating structures for wave energy devices;

[0007] A constant-pressure phase-change energy storage device, the constant-pressure phase-change energy storage device is arranged inside the floating structure of the wave energy device, the constant-pressure phase-change energy storage device comprises a shell, a partition is arranged inside the shell, the partition divides the inside of the shell into a first chamber and a second chamber, a compression spring tension rod component is arranged in the first chamber, the compression spring tension rod component at least partially extends to the outside of the shell along the first direction, and an airbag constant-pressure component is arranged in the second chamber, the compression spring tension rod component can act on the airbag constant-pressure component along the first direction;

[0008] an anchor chain, one end of which is connected to a portion of the compression spring tension rod component extending to the outside of the housing; and

[0009] Anchor, the anchor is connected to one end of the anchor chain away from the compression spring tension rod component.

[0010] Further preferably, the compression spring tension rod component includes a pressure plate and a tension rod, the pressure plate is arranged in the first chamber, one end of the tension rod is connected to the pressure plate, and the other end of the tension rod extends along the first direction to the outside of the shell and is connected to the anchor chain.

[0011] Further preferably, a first slot hole is opened in the middle of the partition, and the tension rod is connected to the first slot hole along the first direction.

[0012] Further preferably, the compression spring tension rod component further includes a compression spring, and the compression spring is placed between the partition and the pressure plate.

[0013] Further preferably, the airbag-type constant pressure component includes at least one energy storage tank filled with hydraulic oil, the energy storage tank is placed in the first chamber, a piston is provided in the energy storage tank, a connecting rod extending along the first direction is connected between the piston and the pressure plate, and an airbag is also provided in the energy storage tank.

[0014] Further preferably, a second slot hole is formed on the partition plate, and the connecting rod is connected to the second slot hole along the first direction.

[0015] Further preferably, the compression spring is sleeved on the outer circumference of the connecting rod.

[0016] Further preferably, the energy storage tanks are an even number, and the even number of the energy storage tanks are symmetrically arranged about the tension rod axis in the second chamber, and the energy storage tanks are fixedly connected to the inner wall of the shell.

[0017] Further preferably, high-pressure inert gas is stored in the airbag, and the high-pressure inert gas is nitrogen.

[0018] Further preferably, the outer wall of the shell is provided with a first connection block connected to the inner bottom wall of the floating structure of the wave energy device and a second connection block connected to the inner side wall of the floating structure of the wave energy device.

[0019] Compared with the prior art, the typhoon-resistant mooring system of a wave energy device provided by the present invention has the following beneficial effects:

[0020] The present invention arranges a constant-pressure phase-change energy storage device in the floating structure of the wave energy device, and utilizes a compression spring tension rod component and an airbag-type constant-pressure component to form an energy storage type mooring system. This can not only solve the problem of shallow water typhoon resistance of the mooring system, but also ensure the safe and long-term use of key components of the mooring system, and further improve the service life and safety of the mooring system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a typhoon-resistant mooring system for a wave energy device according to the present invention.

[0022] Figure 2 It is a structural schematic diagram of the constant-voltage phase-change energy storage device of the present invention.

[0023] Figure 3 This is a working demonstration diagram of the constant-voltage phase-change energy storage device of the present invention.

[0024] Reference numerals:

[0025] 10. Floating structure of wave energy device;

[0026] 20. Anchor chain;

[0027] 30. Anchor;

[0028] 40. Constant-pressure phase-change energy storage device; 401. Shell; 402. Partition; 403. First chamber; 404. Second chamber; 405. Press plate; 406. First slot; 407. Tension rod; 408. Compression spring; 409. Energy storage tank; 410. Air bag; 411. Piston; 412. Connecting rod; 413. Second slot; 414. Hydraulic oil; 415. High-pressure inert gas; 416. First connecting block; 417. Second connecting block;

[0029] X, first direction. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like used in the present invention to indicate the orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] like Figure 1-Figure 3 As shown, this embodiment provides a typhoon-resistant mooring system for a wave energy device, which has a first direction X and includes a floating structure 10 of a wave energy device, a constant pressure phase change energy storage device 40 , an anchor chain 20 and an anchor 30 .

[0037] In a specific embodiment, the constant pressure phase change energy storage device 40 is arranged inside the floating structure 10 of the wave energy device, and the constant pressure phase change energy storage device 40 includes a shell 401, and a partition 402 is arranged inside the shell 401, and the partition 402 divides the inside of the shell 401 into a first chamber 403 and a second chamber 404, and a compression spring tension rod component is arranged in the first chamber 403, and the compression spring tension rod component at least partially extends to the outside of the shell 401 along the first direction X, and an airbag type constant pressure component is arranged in the second chamber 404, and the compression spring tension rod component can be extended along the first direction X Acting on the airbag constant pressure component; one end of the anchor chain 20 is connected to the part of the compression spring tension rod component extending to the outside of the shell 401; the anchor 30 is connected to the end of the anchor chain 20 away from the compression spring tension rod component; in this way, by arranging a constant pressure phase change energy storage device 40 in the floating structure 10 of the wave energy device, and utilizing the compression spring tension rod component and the airbag constant pressure component to form an energy storage type mooring system, it can not only solve the problem of shallow water typhoon resistance of the mooring system, but also ensure the safe and long-term use of key components of the mooring system, and further improve the service life and safety of the mooring system.

[0038] In some embodiments, the compression spring tension rod component includes a pressure plate 405 and a tension rod 407, the pressure plate 405 is arranged in the first chamber 403, one end of the tension rod 407 is connected to the pressure plate 405, and the other end of the tension rod 407 extends to the outside of the shell 401 along the first direction X and is connected to the anchor chain 20; in this way, when under the action of waves, the floating structure 10 of the wave energy device drifts under the action of waves, and at this time the mooring line anchor chain 20 drives the tension rod 407 to move along the first direction X, thereby driving the pressure plate 405 to move along the first direction X in the second chamber 404.

[0039] In some embodiments, a first slot hole 406 is opened in the middle of the partition plate 402 , and the tension rod 407 is connected to the first slot hole 406 along the first direction X.

[0040] In some embodiments, the compression spring tension rod component also includes a compression spring 408, which is placed between the partition 402 and the pressure plate 405; under the action of waves, the tension rod 407 drives the pressure plate 405 to move along the first direction X to overcome the elastic force of the compression spring 408, and the compression spring 408 is compressed to release the mooring load.

[0041] In some embodiments, the airbag constant pressure component includes at least one energy storage tank 409 filled with hydraulic oil 414, the energy storage tank 409 is placed in the first chamber 404, a piston 411 is arranged in the energy storage tank 409, a connecting rod 412 extending along the first direction X is connected between the piston 411 and the pressure plate 405, and an airbag 410 is also arranged in the energy storage tank 409. In this way, when the pressure plate 405 pushes the piston 411 to move along the first direction X through the connecting rod 412, the hydraulic oil 414 in the energy storage tank 409 is compressed, thereby compressing the airbag 410 to store energy; when the anchoring tension continues to increase, the nitrogen in the airbag 410 begins to undergo a phase change, from gas to liquid, as the anchoring tension continues.

[0042] In some embodiments, a second slot hole 413 is further formed on the partition plate 402 , and the connecting rod 412 is connected to the second slot hole 413 along the first direction X.

[0043] In some embodiments, the compression spring 408 is sleeved on the outer circumference of the connecting rod 412 to prevent the compression spring 408 from falling off during compression and affecting energy storage.

[0044] In some embodiments, there are an even number of energy storage tanks 409 , and the even number of energy storage tanks 409 are arranged symmetrically about the tension rod 407 in the second chamber 404 , and the energy storage tanks 409 are fixedly connected to the inner wall of the shell 401 ; thereby ensuring the stability of the pressure plate 405 when moving.

[0045] In some embodiments, a high-pressure inert gas 415 is stored in the airbag 410, and the high-pressure inert gas is nitrogen. Nitrogen is not easy to react chemically with other substances, which makes the use of nitrogen in the constant-pressure phase change energy storage device 40 safer and more reliable, and will not affect the stability of the system due to problems such as oxidation or corrosion. During use, when the mooring tension continues to increase, the nitrogen in the airbag 410 begins to change phase from gas to liquid. As the mooring tension continues, more high-pressure inert gas 415-nitrogen will be converted to liquid. At this time, the airbag 410 is compressed into a gas-liquid mixed energy storage. During this process, the mooring tension will be in a constant tension process, and the mooring load will no longer increase, ensuring that the mooring load is within a certain range.

[0046] In some embodiments, the outer wall of the shell 401 is provided with a first connecting block 416 connected to the inner bottom wall of the floating structure 10 of the wave energy device and a second connecting block 417 connected to the inner side wall of the floating structure 10 of the wave energy device, so as to fix the constant pressure phase change energy storage device 40 inside the floating structure 10 of the wave energy device, and effectively prevent the constant pressure phase change energy storage device 40 from falling off and losing its function under the action of wind and waves.

[0047] The working process of the present invention is: please combine Figure 1-Figure 3, when under the action of waves, the floating structure 10 of the wave energy device drifts under the action of waves, at this time, the mooring line anchor chain 20 drives the tension rod 407 to move along the first direction X, and then drives the pressure plate 405 to overcome the elastic force of the compression spring 408 in the second chamber 404 and move along the first direction X, the compression spring 408 is compressed to release the mooring load slowly, and the pressure plate 405 pushes the piston 411 to move along the first direction X through the connecting rod 412, and the hydraulic oil 414 in the energy storage tank 409 is compressed, thereby compressing the airbag 410 to store energy; when the mooring tension continues to increase, the nitrogen in the airbag 410 begins to change phase from gas to liquid. As the mooring tension continues, more high-pressure inert gas 415-nitrogen will be converted into liquid. At this time, the airbag 410 is compressed to store gas-liquid mixed energy. During this process, the mooring tension will be in a constant tension process, and the mooring load will no longer increase, ensuring that the mooring load is within a certain range. This load can be controlled by the gas storage volume and pressure of the airbag 410;

[0048] In addition, due to the buffering energy storage of the compression spring 408, the impact load of the mooring can be released slowly and the peak value can be reduced. At the same time, since the energy storage of the compression spring 408 is limited, the constant-pressure phase change energy storage of the airbag 410 will more balance the continuous work of the mooring force. The whole process can not only reduce the peak load, but also set the mooring load under extreme sea conditions to a certain constant tension through the pressure and volume factors of the accumulator.

[0049] In summary, the present invention provides a typhoon-resistant mooring system for a wave energy device, which can solve the shallow water typhoon resistance problem of the mooring system by setting a constant pressure phase change energy storage device 40 in the floating structure 10 of the wave energy device, and using a compression spring tension rod component and an airbag constant pressure component to form an energy storage type mooring system, and can ensure the safe and long-term use of key components of the mooring system, and further improve the service life and safety of the mooring system. The typhoon-resistant mooring system for a wave energy device of the present invention can reduce the mooring force acting on the mooring line, and has a suppressive effect on the peak load, while effectively reducing the design load of the mooring line, saving costs and ensuring mooring safety.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be regarded as the protection scope of the present invention. The basic principles, main features and advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above preferred embodiments. The embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A typhoon-resistant mooring system for a wave energy device, having a first direction, characterized in that: include: Floating structures for wave energy devices; A constant-pressure phase-change energy storage device, the constant-pressure phase-change energy storage device is arranged inside the floating structure of the wave energy device, the constant-pressure phase-change energy storage device comprises a shell, a partition is arranged inside the shell, the partition divides the inside of the shell into a first chamber and a second chamber, a compression spring tension rod component is arranged in the first chamber, the compression spring tension rod component at least partially extends to the outside of the shell along the first direction, and an airbag constant-pressure component is arranged in the second chamber, the compression spring tension rod component can act on the airbag constant-pressure component along the first direction; an anchor chain, one end of which is connected to a portion of the compression spring tension rod component extending to the outside of the housing; and Anchor, the anchor is connected to one end of the anchor chain away from the compression spring tension rod component.

2. A typhoon-resistant mooring system for a wave energy device according to claim 1, characterized in that: The compression spring tension rod component includes a pressure plate and a tension rod, the pressure plate is arranged in the first chamber, one end of the tension rod is connected to the pressure plate, and the other end of the tension rod extends along the first direction to the outside of the shell and is connected to the anchor chain.

3. A typhoon-resistant mooring system for a wave energy device according to claim 2, characterized in that: A first slot hole is opened in the middle of the partition plate, and the tension rod is connected to the first slot hole along the first direction.

4. A typhoon-resistant mooring system for a wave energy device according to claim 2, characterized in that: The compression spring tension rod component further comprises a compression spring, and the compression spring is arranged between the partition plate and the pressure plate.

5. A typhoon-resistant mooring system for a wave energy device according to claim 4, characterized in that: The airbag-type constant pressure component includes at least one energy storage tank filled with hydraulic oil, the energy storage tank is placed in the first chamber, a piston is provided in the energy storage tank, a connecting rod extending along the first direction is connected between the piston and the pressure plate, and an airbag is also provided in the energy storage tank.

6. A typhoon-resistant mooring system for a wave energy device according to claim 5, characterized in that: The partition plate is further provided with a second slot hole, and the connecting rod is connected to the second slot hole along the first direction.

7. A typhoon-resistant mooring system for a wave energy device according to claim 5, characterized in that: The compression spring is sleeved on the outer periphery of the connecting rod.

8. A typhoon-resistant mooring system for a wave energy device according to claim 5, characterized in that: The energy storage tanks are in an even number, and the even number of the energy storage tanks are arranged symmetrically about the tension rod axis in the second chamber, and the energy storage tanks are fixedly connected to the inner wall of the shell.

9. A typhoon-resistant mooring system for a wave energy device according to claim 5, characterized in that: The airbag stores high-pressure inert gas, which is nitrogen.

10. A typhoon-resistant mooring system for a wave energy device according to claim 1, characterized in that: The outer wall of the shell is provided with a first connection block connected to the inner bottom wall of the floating structure of the wave energy device and a second connection block connected to the inner side wall of the floating structure of the wave energy device.

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