Wave energy device anti typhoon mooring system

Abstract

The present application relates to the technical field of offshore platform anchoring, and 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 wave energy device floating body structure, and comprises a shell. A partition plate is arranged in the shell, and divides the shell into a first chamber and a second chamber. A compression spring tension rod component is arranged in the first chamber and extends at least partially to the outside of the shell. An air bag type constant-pressure component is arranged in the second chamber, and the compression spring tension rod component can act on the air bag type constant-pressure component. One end of the anchor chain is connected to the part of the compression spring tension rod component extending to the outside of the shell. The anchor is connected to the end of the anchor chain away from the compression spring tension rod component. The present application can solve the problem of anti-typhoon of the anchoring system in shallow water, and can ensure the safe and long-term use of the key components of the anchoring system, thereby improving the service life and safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of offshore platform mooring, in particular to a wave energy device anti-typhoon mooring system. BACKGROUND

[0002] Ocean wave energy is a kind of renewable energy which is inexhaustible, inexhaustible and rich in reserves. In recent years, with the continuous exploration of human beings on ocean renewable energy and the rapid development of ocean wave energy technology, many domestic and foreign floating wave energy devices realize power generation and real sea condition operation, and wave energy devices are developing towards deep sea long-term stable operation. The environmental conditions along the coast of China are poor, typhoons occur frequently, and the average number of typhoon invasions in the northern hemisphere accounts for more than 25% per year. At the same time, the average water depth within 100 kilometers along the coast of China is only 60 meters, the continental slope of the nearshore sea area is relatively gentle, and the extension range to the open sea is wide. The water depth of the port is limited, and the wave shallow water deformation and climbing affect the increase of the movement amplitude, which brings great difficulty to the anti-typhoon mooring design of wave energy devices.

[0003] The traditional wave energy power generation device mooring system is mainly a catenary mooring system, which mainly buffers the low-frequency drift force of the wave through the gravitational potential energy of the catenary material and the overall stretching of the catenary. Under the action of the wave, the floating structure is subjected to the continuous action of the first-order and second-order wave forces, resulting in the drift movement of the floating platform and the deformation of the catenary of the mooring system, and the mooring cable is subjected to stress. In the typhoon sea condition, the mooring cable is prone to straighten and tighten, which can easily cause the anchor chain to break or walk. If in the shallow water condition, due to the limited energy storage capacity of the mooring system itself, the system lacks sufficient energy storage impact resistance, which can easily cause the mooring system to fail. SUMMARY

[0004] The technical problem to be solved by the present application is how to solve the difficulty of the traditional catenary mooring system in resisting typhoon in the current shallow water condition.

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

[0006] a wave energy device floating body structure;

[0007] a constant-pressure phase change energy storage device, the constant-pressure phase change energy storage device is arranged in the interior of the wave energy device floating body structure, the constant-pressure phase change energy storage device comprises a shell, a partition plate is arranged in the interior of the shell, the partition plate divides the interior 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 extends to the outside of the shell at least partially along the first direction, a gas bag type constant-pressure component is arranged in the second chamber, and the compression spring tension rod component can act on the gas bag type constant-pressure component along the first direction.

[0008] an anchor chain, one end of the anchor chain being connected with a part of the compression spring tension rod component extending outside the shell;

[0009] an anchor, the anchor being 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 comprises a compression plate and a tension rod, the compression plate being arranged in the first chamber, one end of the tension rod being connected with the compression plate, and the other end of the tension rod extending outside the shell along the first direction and being connected with the anchor chain.

[0011] Further preferably, a first slot hole is formed in the middle of the partition plate, and the tension rod is threaded in the first slot hole along the first direction.

[0012] Further preferably, the compression spring tension rod component further comprises a compression spring, the compression spring being arranged between the partition plate and the compression plate.

[0013] Further preferably, the gas bag constant pressure component comprises at least one energy storage tank filled with hydraulic oil, the energy storage tank being arranged in the first chamber, a piston being arranged in the energy storage tank, a connecting rod extending along the first direction being connected between the piston and the compression plate, and a gas bag being arranged in the energy storage tank.

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

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

[0016] Further preferably, the energy storage tank is even in number, and the even number of energy storage tanks are arranged in the second chamber in axial symmetry about the tension rod, and the energy storage tanks are fixedly connected with the inner wall of the shell.

[0017] Further preferably, the gas bag stores high-pressure inert gas, and the high-pressure inert gas is nitrogen.

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

[0019] Compared with the prior art, the wave energy device anti-tornado anchoring system has the beneficial effects that:

[0020] The application sets the constant pressure phase change energy storage device in the wave energy device floating body structure, uses the compression spring tension rod component and the air bag type constant pressure component to form the energy storage type anchoring system, can solve the problem of shallow water typhoon resistance of the anchoring system, can guarantee the safe long-term use of the key components of the anchoring system, and further improves the service life and safety of the anchoring system. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a schematic diagram of the wave energy device typhoon resistant anchoring system of the application.

[0022] Fig. 2 is a structural schematic diagram of the constant pressure phase change energy storage device.

[0023] Fig. 3 is a working demonstration diagram of the constant pressure phase change energy storage device.

[0024] REFERENCE NUMERALS:

[0025] 10, wave energy device floating body structure;

[0026] 20, anchor chain;

[0027] 30, anchor;

[0028] 40, constant pressure phase change energy storage device; 401, shell; 402, partition plate; 403, first cavity; 404, second cavity; 405, pressing plate; 406, first slot hole; 407, tension rod; 408, compression spring; 409, energy storage tank; 410, air bag; 411, piston; 412, connecting rod; 413, second slot hole; 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 embodiments of the application are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the application, but are not used to limit the scope of the application.

[0031] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like with respect to the present application is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0032] The terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0033] In addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0035] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0036] As Figs. 1-3 shown, the embodiment provides a wave energy device anti-typhoon mooring system, which has a first direction X, including a wave energy device floating body structure 10, a constant pressure phase change energy storage device 40, an anchor chain 20 and an anchor 30.

[0037] In the specific embodiment, the constant pressure phase change energy storage device 40 is arranged inside the wave energy device floating body structure 10, the constant pressure phase change energy storage device 40 includes a shell 401, the inside of the shell 401 is provided with a partition plate 402, the partition plate 402 divides the inside of the shell 401 into a first chamber 403 and a second chamber 404, the first chamber 403 is provided with a compression spring tension rod component, the compression spring tension rod component extends at least partially to the outside of the shell 401 along the first direction X, the second chamber 404 is provided with an air bag type constant pressure component, the compression spring tension rod component can act on the air bag type constant pressure component along the first direction X; one end of the anchor chain 20 is connected with 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 the constant pressure phase change energy storage device 40 in the wave energy device floating body structure 10, an energy storage type mooring system is composed of the compression spring tension rod component and the air bag type constant pressure component, which can not only solve the problem of anti-typhoon of the mooring system in shallow water, but also can guarantee the safe and long-term use of the 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 pressing plate 405 and a tension rod 407, the pressing plate 405 is arranged in the first chamber 403, one end of the tension rod 407 is connected with the pressing plate 405, the other end of the tension rod 407 extends to the outside of the shell 401 along the first direction X and is connected with the anchor chain 20; in this way, when the wave energy device floating body structure 10 drifts under the action of waves, the mooring line anchor chain 20 drives the tension rod 407 to move along the first direction X, and then drives the pressing plate 405 to move along the first direction X in the second chamber 404.

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

[0040] In some embodiments, the compression spring tension rod component further includes a compression spring 408, which is arranged between the partition plate 402 and the pressing plate 405; under the action of waves, the tension rod 407 drives the pressing plate 405 to move along the first direction X against 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 air bag constant pressure component comprises at least one energy storage tank 409 filled with hydraulic oil 414, the energy storage tank 409 is arranged in the first chamber 404, a piston 411 is arranged in the energy storage tank 409, a connecting rod 412 extending in the first direction X is connected between the piston 411 and the pressure plate 405, and an air bag 410 is further arranged in the energy storage tank 409. In this way, when the pressure plate 405 pushes the piston 411 to move in the first direction X through the connecting rod 412, the hydraulic oil 414 in the energy storage tank 409 is compressed, and the air bag 410 is also compressed to store energy.

[0042] In some embodiments, the second slot hole 413 is further arranged on the partition plate 402, and the connecting rod 412 penetrates the second slot hole 413 in the first direction X.

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

[0044] In some embodiments, the energy storage tank 409 is even-numbered, and the even-numbered energy storage tanks 409 are arranged in the second chamber 404 in an axisymmetric manner about the tension rod 407, and the energy storage tank 409 is fixedly connected with the inner wall of the shell 401, so as to ensure the stability of the pressure plate 405 during movement.

[0045] In some embodiments, the air bag 410 stores high-pressure inert gas 415, and the high-pressure inert gas is nitrogen. Nitrogen is not easy to react with other substances, which makes the use of nitrogen in the constant pressure phase change energy storage device 40 more safe and reliable, and the stability of the system will not be affected by problems such as oxidation or corrosion. During use, when the mooring tension continues to increase, the nitrogen in the air bag 410 begins to change phase and changes from gas to liquid, and as the mooring tension continues, more high-pressure inert gas 415-nitrogen will be converted into liquid, at this time the air bag 410 is compressed into a gas-liquid mixed energy storage, and during this process, the mooring tension will be in a constant tension process, and the mooring load will no longer increase, so as to ensure 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 with the inner bottom wall of the wave energy device floating body structure 10 and a second connecting block 417 connected with the inner side wall of the wave energy device floating body structure 10, so as to fix the constant pressure phase change energy storage device 40 in the interior of the wave energy device floating body structure 10, and effectively avoid the constant pressure phase change energy storage device 40 from falling off and losing function under the action of wind and wave.

[0047] The working process of the present application is as follows: Figs. 1-3When the wave energy device floating body structure 10 drifts under the action of waves, the mooring line anchor chain 20 drives the tension rod 407 to move in the first direction X, and then drives the pressure plate 405 to move in the first direction X in the second chamber 404 against the elastic force of the compression spring 408, the compression spring 408 is compressed to release the mooring load, the pressure plate 405 drives the piston 411 to move in the first direction X through the connecting rod 412, the hydraulic oil 414 in the energy storage tank 409 is compressed, and then the air bag 410 stores energy; when the anchor mooring tension continues to increase, the nitrogen in the air bag 410 begins to change phase from gas to liquid, and as the anchor mooring tension continues, more high-pressure inert gas 415-nitrogen will be converted to liquid, at this time the air bag 410 is compressed to store energy in the form of gas-liquid mixture, and during this process, the anchor mooring tension will be in a constant tension process, and the anchor mooring load will no longer increase, so as to ensure that the mooring load is within a certain range, and this load can be controlled by the gas volume and pressure of the air bag 410.

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

[0049] In summary, the wave energy device anti-tornado mooring system provided by the present application can solve the problem of shallow water anti-tornado of the mooring system, and can also ensure the safe and long-term use of the key components of the mooring system, and further improve the service life and safety of the mooring system. The wave energy device anti-tornado mooring system of the present application can reduce the anchor mooring stress acting on the mooring line, and has a restraining effect on the peak load, and can effectively reduce the design load of the mooring line, save cost and ensure the safety of the mooring.

[0050] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the art, some improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application. The above shows and describes the basic principles, main features and advantages of the present application, and it is obvious for those skilled in the art that the present application is not limited to the details of the above preferred embodiments, and the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application.

[0051] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Furthermore, the method examples, as well as the methods described in order to implement the examples can be implemented by means of at least one computer program, in particular, a computer program on a computer readable medium. The steps of the methods can be performed by one or more special-purpose computers or one or more general-purpose computers.

Claims

1. A wave energy device anti-typhoon mooring system, having a first direction, characterized in that, include: Wave energy device floating structure; A constant-pressure phase change energy storage device is provided inside the floating structure of the wave energy device. The constant-pressure phase change energy storage device includes a shell, and a partition is provided inside the shell to divide the shell into a first chamber and a second chamber. A compression spring tension rod component is provided in the first chamber, and the compression spring tension rod component extends at least partially to the outside of the shell along a first direction. An airbag-type constant-pressure component is provided in the second chamber, and the compression spring tension rod component can act on the airbag-type constant-pressure component along the first direction. An anchor chain, one end of which is connected to the portion of the compression spring tension rod extending to the outside of the housing; and An anchor, which is connected to the end of the anchor chain away from the spring tension rod component; The compression spring tension rod component includes a pressure plate and a tension rod. The pressure plate is disposed in the first cavity. 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 housing and is connected to the anchor chain. 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, the energy storage tank is provided with a piston, the piston is connected to the pressure plate by a connecting rod extending along the first direction, and the energy storage tank is also provided with an airbag.

2. The wave energy device anti-typhoon mooring system according to claim 1, characterized in that, The partition has a first slot in the middle, and the tension rod passes through the first slot along the first direction.

3. The wave energy device anti-typhoon mooring system according to claim 1, characterized in that, The spring tension rod component also includes a spring, which is placed between the partition and the pressure plate.

4. The wave energy device anti-typhoon mooring system according to claim 1, characterized in that, The partition plate is also provided with a second slot, and the connecting rod passes through the second slot along the first direction.

5. A wave energy device anti-typhoon mooring system according to claim 3, characterized in that, The compression spring is sleeved on the outer periphery of the connecting rod.

6. The wave energy device anti-typhoon mooring system according to claim 1, characterized in that, There are an even number of energy storage tanks, and the even number of energy storage tanks are arranged symmetrically about the tension rod axis in the second chamber. The energy storage tanks are fixedly connected to the inner wall of the shell.

7. A wave energy device anti-typhoon mooring system according to claim 1, characterized in that, The airbag contains a high-pressure inert gas, which is nitrogen.

8. A wave energy device anti-typhoon mooring system according to claim 1, characterized in that, The outer wall of the shell is provided with a first connecting block that connects to the bottom wall of the wave energy device floating structure and a second connecting block that connects to the inner side wall of the wave energy device floating structure.

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