Offshore steel pipe pile with wave power generation function

Abstract

The utility model discloses an offshore steel pipe pile with a wave power generation function. A first horizontal steel partition plate, a second horizontal steel partition plate and a third horizontal steel partition plate are sequentially arranged in the steel pipe pile from top to bottom. The first steel partition plate, the second steel partition plate and the side wall of the steel pipe pile jointly define an upper compartment. An exhaust hole (also serving as an access hole) penetrating through the side wall of the steel pipe pile is formed in the position, close to the first steel partition plate, of the upper compartment; a through vent hole is formed in the second steel partition plate, and a Weels turbine is fixedly installed above the vent hole of the second steel partition plate in a matched mode; the second steel partition plate, the third steel partition plate and the side wall of the steel pipe pile jointly define a lower compartment. A water inlet hole penetrating through the side wall of the steel pipe pile is formed in the lower compartment close to the third steel partition plate; the water inlet hole is located below the water surface, and the lower surface of the second steel partition plate is located above the water surface. According to the scheme, the steel pipe pile with the wave power generation function is achieved, and the engineering problems of seawater corrosion, marine organism attachment, offshore storm resistance and the like can be well solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wave energy power generation, and in particular relates to an offshore steel pipe pile with a wave energy power generation function. Background Art

[0002] Wave energy generation requires the construction of structures at sea and the solution of submarine power transmission issues; special hydraulic structures need to be built at the coast to facilitate the collection of wave energy and the installation of power generation equipment. All kinds of devices should consider engineering issues such as seawater corrosion, marine biological attachment and resistance to offshore storms. Existing conventional solutions, such as shore-based oscillating water column wave power stations built on the shore, generally use reinforced concrete structures, and use reinforced concrete to build an air chamber, an air turbine room and an exhaust chamber on the coast. The construction period is long and the economic benefits are poor. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an offshore steel pipe pile with wave energy power generation function, solve the problem of poor economy of existing wave power stations, realize steel pipe piles with wave energy power generation, and be able to coordinate the use of power transmission system and protection system, thereby significantly improving economic benefits.

[0004] According to the technical scheme of the utility model, the utility model provides an offshore steel pipe pile with wave energy power generation function, including a vertically arranged steel pipe pile, in which a first horizontal steel partition, a second steel partition and a third steel partition are arranged in sequence from top to bottom; the first steel partition, the second steel partition and the side wall of the steel pipe pile together form an upper compartment; the upper compartment is provided with an exhaust hole penetrating the side wall of the steel pipe pile near the first steel partition; the second steel partition is provided with a through vent, and a Wells turbine is matchedly installed and fixed above the vent of the second steel partition; the second steel partition, the third steel partition and the side wall of the steel pipe pile together form a lower compartment; the lower compartment is provided with a water inlet hole penetrating the side wall of the steel pipe pile near the third steel partition; the water inlet hole is located below the water surface, and the lower surface of the second steel partition is located above the water surface.

[0005] Furthermore, transverse supporting steel beams are welded and fixed below the first steel partition, the second steel partition and the third steel partition, and both ends of the supporting steel beams are welded and fixed to the side walls of the steel pipe piles.

[0006] Furthermore, stiffening ribs are welded and fixed at the connection points between the first steel partition, the second steel partition and the third steel partition and the side wall of the steel pipe pile.

[0007] Furthermore, there are one or more water inlet holes distributed circumferentially.

[0008] Furthermore, the first steel partition, the second steel partition and the third steel partition are all sealed and welded to the steel pipe piles, and the first steel partition and the third steel partition are circular closed steel plates that match the steel pipe piles.

[0009] Furthermore, the steel pipe pile is provided with a through inspection hole, and the exhaust hole forms the inspection hole.

[0010] Furthermore, the steel pipe piles are offshore wind power foundation steel pipe piles.

[0011] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0012] The utility model of offshore steel pipe pile with wave energy power generation function transforms offshore steel pipe piles, utilizes the structural characteristics and performance of steel pipe piles, and combines the use of offshore wave energy to realize steel pipe piles with wave energy power generation, and can better deal with engineering problems such as seawater corrosion, marine organism attachment and resistance to offshore storms. It also optimizes the steel pipe piles shared by wave energy power generation and offshore wind power generation, coordinates the use of transmission systems and protection systems, and significantly improves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram according to an embodiment of the utility model.

[0014] Description of reference numerals in the accompanying drawings:

[0015] 1. First steel partition; 2. Second steel partition; 3. Third steel partition; 4. Steel pipe piles; 5. Upper compartment; 6. Exhaust hole; 7. Air vent; 8. Wells turbine; 9. Lower compartment; 10. Water inlet; 11. Supporting steel beam; 12. Stiffening rib. DETAILED DESCRIPTION

[0016] The utility model provides an offshore steel pipe pile with wave energy power generation function, which solves the problem of poor economy of existing wave power stations, realizes steel pipe piles with wave energy power generation, can coordinate the use of power transmission system and protection system, and significantly improves economic benefits.

[0017] See also Figure 1 An offshore steel pipe pile with wave energy power generation function according to an embodiment of the utility model comprises a vertically arranged steel pipe pile 4, wherein the steel pipe pile 4 is provided with a first horizontal steel partition 1, a second steel partition 2 and a third horizontal steel partition 3 in sequence from top to bottom. The first steel partition 1, the second steel partition 2 and the third steel partition 3 are preferably circular steel plates, the size of which matches the steel pipe pile 4, and are welded and fixed to the side wall of the steel pipe pile 4, thereby dividing the internal space of the steel pipe pile 4.

[0018] The first steel partition 1, the second steel partition 2 and the side wall of the steel pipe pile 4 therebetween together form an upper compartment 5. The upper compartment 5 is provided with an exhaust hole 6 that penetrates the side wall of the steel pipe pile 4 near the first steel partition 1 at the top. The second steel partition 2 is provided with a through vent 7, and a Wells turbine 8 is matched and fixed above the vent 7 of the second steel partition 2. The specification of the Wells turbine 8 matches the diameter of the steel pipe pile 4 for installation and operation and maintenance. The power output end of the Wells turbine 8 is connected to the power transmission line of the power generation system, which will not be elaborated here. The Wells turbine is a low-pressure air turbine and is used in an oscillating water column type wave energy power plant. No matter which direction the airflow passes through it, the turbine rotates in the same direction. The efficiency of the Wells turbine in oscillating flow is between 40% and 70%.

[0019] The second steel partition 2, the third steel partition 3 and the side wall of the steel pipe pile 4 therebetween together form a lower compartment 9. The lower compartment 9 is provided with a water inlet hole 10 penetrating the side wall of the steel pipe pile 4 at the lower part near the third steel partition 3. The water inlet hole 10 is, for example, one or more circumferentially distributed. The water inlet hole 10 is located below the water surface (or wave surface), and the lower surface of the second steel partition 2 is located above the water surface.

[0020] The basic concept and principle of the utility model are as follows. Combined with the use of offshore wind power steel pipe piles or separately set steel pipe piles as the main structure, two upper and lower compartments are set in the main structure, the outer wall of the compartment is used as the pipe wall of the steel pipe pile 4, and the compartment is separated by adding a horizontal partition steel plate in the steel pipe pile. The lower compartment 9 is an air chamber, and the pile wall below the sea surface is provided with a water inlet hole 10 for waves to enter. The wave movement causes the water surface to rise and fall, and the air column formed between the water surface and the top of the air chamber is periodically pressurized and depressurized; and then the Wells turbine 8 of the upper compartment 5 is used to convert these pressures into electrical energy.

[0021] Preferably, a plurality of transverse support steel beams 11 are welded and fixed below the first steel partition 1, the second steel partition 2 and the third steel partition 3, and both ends of the support steel beams 11 are welded and fixed to the side walls of the steel pipe piles 4, so as to improve the stress-bearing performance of the steel partitions. Of course, the support steel beams at the second steel partition 2 do not hinder the flow of air in and out of the vents 7. Preferably, stiffening ribs 12 are welded and fixed at the connection points between the first steel partition 1, the second steel partition 2 and the third steel partition 3 and the side walls of the steel pipe piles 4. The stiffening ribs 12 are, for example, in the form of a right-angled trapezoid or a right-angled triangle, and the adjacent right-angled sides are respectively welded to the side walls of the steel partition and the steel pipe pile 4, which plays a role in improving the stress-bearing performance of the steel grating. It is further preferred to have both support steel beams 11 and stiffening ribs 12, and to weld stiffening ribs between the support steel beams 11 and the steel partitions.

[0022] Preferably, the first steel partition 1, the second steel partition 2 and the third steel partition 3 are sealed and welded to the steel pipe pile 4, and the first steel partition 1 and the third steel partition 3 are circular closed steel plates matching the steel pipe pile 4. Therefore, in addition to reinforcing and supporting, the first steel partition 1, the second steel partition 2 and the third steel partition 3 also seal the space of the upper compartment 5 and the lower compartment 9 from the rest of the space in the steel pipe pile 4, so that the operating environment and conditions of the Wells turbine 8 are better.

[0023] Furthermore, a maintenance hole is provided through the steel pipe pile 4. For example, it is preferred that the vent hole 6 forms a maintenance hole, in other words, the vent hole 6 also serves as a maintenance hole.

[0024] Preferably, the steel pipe pile 4 is an offshore wind power foundation steel pipe pile, and the upper part thereof is used to support wind power equipment. According to other embodiments, the offshore steel pipe pile with wave power generation function can also be provided separately as a new type of wave energy power generation device.

[0025] It should be noted that the diameter of the steel pipe piles in this solution matches the specifications of the Wells turbine to facilitate installation and operation and maintenance; the pile top height requirement of the steel pipe piles, when combined with the offshore wind power foundation, not only meets the wind power foundation requirements, but also meets the requirements for the compartment setting of the wave power generation device; and, further consideration of the impact of the steel pipe piles setting up the wave power generation device requires analysis, calculation and reinforcement, such as reinforcement of the water inlet opening and reinforcement of the equipment operation impact.

[0026] In summary, wave power generation must build structures at sea and solve the problem of submarine power transmission; special hydraulic structures need to be built at the coast to collect wave energy and install power generation equipment; various devices should consider engineering problems such as seawater corrosion, marine biological attachment and resistance to offshore storms. This scheme combines the use of offshore wind power steel pipe piles or sets steel pipe piles separately as the main structure, sets two compartments in the main structure, the outer wall of the compartment is used as the pipe wall of the steel pipe pile, and the compartment is separated by adding horizontal partition steel plates in the steel pipe pile. The steel partition is firmly welded to the pile wall and supported by steel beams and stiffening ribs; the lower compartment is an air chamber, and the pile wall below the sea level is provided with openings for waves to enter. The wave movement causes the water level to rise and fall, and the air column surrounded by the water surface and the top of the cavity is periodically pressurized and decompressed; the turbine of the upper compartment is used to convert these pressures into electrical energy, and at the same time, the pile wall at the top of the compartment is provided with openings for exhaust. This scheme transforms offshore steel pipe piles (such as offshore wind power steel pipe piles), utilizes the structural characteristics and performance of steel pipe piles, and combines the use of offshore wave energy to achieve steel pipe piles with wave energy power generation, and can better deal with engineering problems such as seawater corrosion, marine organism attachment, and resistance to offshore storms. It also selects steel pipe piles shared by wave energy power generation and offshore wind power, and coordinates the use of transmission systems and protection systems, which significantly improves economic benefits.

Claims

1. An offshore steel pipe pile with wave energy power generation function, characterized in that: It comprises a vertically arranged steel pipe pile (4), wherein a first horizontal steel partition (1), a second steel partition (2) and a third horizontal steel partition (3) are arranged in sequence from top to bottom in the steel pipe pile (4); The first steel partition (1), the second steel partition (2) and the side wall of the steel pipe pile (4) together form an upper compartment (5); the upper compartment (5) is provided with an exhaust hole (6) penetrating the side wall of the steel pipe pile (4) near the first steel partition (1); the second steel partition (2) is provided with a through vent hole (7), and a Wells turbine (8) is matched and fixed above the vent hole (7) of the second steel partition (2); The second steel partition (2), the third steel partition (3) and the side wall of the steel pipe pile (4) together form a lower compartment (9); the lower compartment (9) is provided with a water inlet hole (10) penetrating the side wall of the steel pipe pile (4) near the third steel partition (3); the water inlet hole (10) is located below the water surface, and the lower surface of the second steel partition (2) is located above the water surface.

2. The offshore steel pipe pile with wave energy power generation function according to claim 1, characterized in that: A transverse supporting steel beam (11) is welded and fixed below the first steel partition (1), the second steel partition (2) and the third steel partition (3), and both ends of the supporting steel beam (11) are welded and fixed to the side wall of the steel pipe pile (4).

3. The offshore steel pipe pile with wave energy power generation function according to claim 1 or 2, characterized in that: Stiffening ribs (12) are welded and fixed at the connection points between the first steel partition plate (1), the second steel partition plate (2) and the third steel partition plate (3) and the side wall of the steel pipe pile (4).

4. The offshore steel pipe pile with wave energy power generation function according to claim 1 or 2, characterized in that: The water inlet hole (10) is one or more water inlet holes (10) arranged in a circumferential distribution.

5. The offshore steel pipe pile with wave energy power generation function according to claim 1 or 2, characterized in that: The first steel partition plate (1), the second steel partition plate (2) and the third steel partition plate (3) are all sealed and welded to the steel pipe pile (4), and the first steel partition plate (1) and the third steel partition plate (3) are circular closed steel plates that match the steel pipe pile (4).

6. The offshore steel pipe pile with wave energy power generation function according to claim 1 or 2, characterized in that: The steel pipe pile (4) is provided with a through inspection hole, and the exhaust hole (6) forms the inspection hole.

7. The offshore steel pipe pile with wave energy power generation function according to claim 1 or 2, characterized in that: The steel pipe piles (4) are offshore wind power foundation steel pipe piles.

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