CN219012761U

CN219012761U - Generator set for offshore wind power generation

Info

Publication number: CN219012761U
Application number: CN202222873001.XU
Authority: CN
Inventors: 程帅兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-05-12
Anticipated expiration: 2032-10-28

Abstract

The utility model provides a generator set for offshore wind power generation, and relates to the technical field of power generation. The utility model adopts the technical scheme that the device comprises a pile foundation, a tower barrel and a generator main body which are sequentially connected, and further comprises a load buffer transmission assembly, wherein the generator main body is provided with a main shaft, an impeller is arranged on the main shaft, blades are arranged on the impeller, reinforcing ribs extending to the end parts of the blades are arranged on the blades, the load buffer transmission assembly comprises a hydraulic spring, pull ropes are respectively arranged at two ends of the hydraulic spring, the pull ropes at two ends are respectively connected with the outer ends of two adjacent reinforcing ribs, anchor rods driven into the seabed are uniformly arranged at the periphery of the tower barrel, and anchor ropes connected with the tower barrel are arranged at the top of the anchor rods.

Description

Generator set for offshore wind power generation

Technical Field

The utility model relates to the technical field of power generation, in particular to a generator set for offshore wind power generation.

Background

Wind energy is a clean and pollution-free renewable energy source and is used by people for a long time. Wind power generation is to convert kinetic energy of wind into electric energy, and the wind power generation is very environment-friendly, and has huge wind energy accumulation, so that the wind power generation is increasingly valued in all countries of the world. Sea wind is a permanent green energy source, and compared with land wind resources, the sea wind resources have the advantages of high wind speed, less land occupation and the like.

An offshore wind power generation device with the prior application number of CN201720562743.7 is provided with blades rotating by wind, a rotor, a generator driven by the rotation of the blades and generating electricity, and a tower capable of supporting the generator in a rotating manner, wherein the tower comprises a supporting seat and a base, the supporting seat is positioned at the bottom of the tower, the base is arranged on a seabed, and the supporting seat is connected with the base through a hinge. The offshore wind power generation equipment has a simple structure, is convenient to transport and install, and can effectively prevent the wind power generation foundation structure from being corroded by seawater. However, the inventor finds that sea wind has the characteristics of unstable wind speed and unstable wind direction, so that aerodynamic loads born by each blade unit of the impeller are generally unbalanced, the uneven loads can cause the blades to vibrate, the impeller can vibrate along with the vibration, particularly in the case of strong wind weather, part fatigue can be formed over time, and the safety and reliability of unit operation are affected.

Accordingly, the prior art is in need of improvement.

Disclosure of Invention

The utility model aims to provide a generator set for offshore wind power generation, which can solve the problems in the prior art, and provides a corresponding solution, and has the beneficial effects of reducing vibration and improving the aerodynamic load bearing capacity of a blade.

Embodiments of the present utility model are implemented as follows:

the embodiment of the application provides a generating set for offshore wind power generation, wherein pile foundation, tower section of thick bamboo, generator main part including connecting gradually still include load buffering transmission subassembly, the generator main part is provided with the main shaft, be provided with the impeller on the main shaft, be provided with the blade on the impeller, be provided with on the blade extend to the strengthening rib of blade tip, load buffering transmission subassembly includes hydraulic spring, hydraulic spring's both ends all are provided with the stay cord, both ends adjacent two are connected respectively to the stay cord the outer end of strengthening rib, evenly be provided with around the tower section of thick bamboo and squeeze into the stock of seabed, the top of stock be provided with the anchor rope that the tower section of thick bamboo is connected.

In some embodiments of the present utility model, the hydraulic spring includes a pipe head, a pipe body, and a spring body, wherein the pipe body is provided with an oil cavity, the pipe body is provided with a push-pull rod, the push-pull rod is provided with a piston inserted into the oil cavity, one end of the spring body is connected with the pipe head, and the other end of the spring body is connected with the pipe body.

In some embodiments of the present utility model, the pipe body is provided with an outer sleeve wrapping one end of the spring body, and the pipe head is provided with an inner sleeve wrapping the other end of the spring body, and the inner sleeve is inserted into the outer sleeve.

In some embodiments of the utility model, the inner diameter of the outer sleeve is the same as the outer diameter of the inner sleeve.

In some embodiments of the utility model, the end of the inner sleeve is provided with a bevel.

In some embodiments of the present utility model, the pipe body and the end of the pipe head are provided with connecting holes.

In some embodiments of the utility model, a protective layer is disposed on a surface of the tower.

In some embodiments of the utility model, the anchor rods are provided with three.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

the generating set for offshore wind power generation that this application embodiment provided is mainly by pile foundation, tower section of thick bamboo, generator main part, impeller, blade and load buffering transmission subassembly, and the pile foundation is beaten into the seabed the inside and is played the effect of fixed tower section of thick bamboo, and generator main part is fixed at the top of tower section of thick bamboo, and the impeller is fixed on generator main part's main shaft, and three blades link to each other with the impeller. The load buffer transmission assembly consists of a hydraulic spring and a pull rope, and the pull rope is fixed at two ends of the hydraulic spring. The strengthening rib is fixed in the back of blade, and stay cord and the outer fixed connection of strengthening rib.

When the blades bear unbalanced aerodynamic load, the blades generate vibration, especially the maximum vibration of the outer end amplitude of the blades is most obvious, the outer ends of the adjacent reinforcing ribs are connected through the load buffer transmission assembly, the vibration of the blades is limited, the blades are mutually related, the unbalanced load on each blade can automatically reach balance, and the load fluctuation transmitted to the impeller is obviously reduced. The bearing capacity of the blades on aerodynamic load is improved, the safety of the generator set for offshore wind power generation is improved, and the service life is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a rear face of a blade and load cushion transfer assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a generator set for offshore wind power generation according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of an internal structure of a hydraulic spring according to an embodiment of the present utility model.

Icon: 1-pile foundation, 2-tower, 201-anchor rod, 202-anchor rope, 3-generator main body, 301-main shaft, 4-load buffer transfer assembly, 401-hydraulic spring, 4011-pipe head, 4012-pipe body, 4013-oil cavity, 4014-push-pull rod, 4015-piston, 4016-spring body, 4017-outer sleeve, 4018-inner sleeve, 4019-connecting hole, 402-stay cord, 5-impeller, 501-blade, 502-reinforcing rib, 6-inclined plane.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the product of the present utility model is conventionally put when used, it is merely for convenience of describing the present utility model and simplifying the description, and it does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like, if any, do not denote a requirement that the component be absolutely horizontal or vertical, but rather may be slightly inclined. As "horizontal" merely means that its orientation is more horizontal than "vertical" and does not mean that the structure or component must be entirely horizontal, but may be slightly inclined.

In the description of the embodiments of the present utility model, "plurality" means at least 2.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Examples

Referring to fig. 1 to 3, a generator set for offshore wind power generation according to an embodiment of the present utility model is shown, and the specific structure thereof is as follows.

Referring to fig. 1 and 2, the generator set for offshore wind power generation provided in the embodiment of the application mainly comprises a pile foundation 1, a tower 2, a generator main body 3, a load buffer transmission assembly 4, an impeller 5 and a blade 501, wherein the pile foundation 1 is used for being driven into a seabed and used as a fixed base of the generator set for offshore wind power generation, and a good fixing effect is achieved. The tower drum 2 is cylindrical, and the bottom of the tower drum 2 is inserted into the pile foundation 1. Three anchor rods 201 are further arranged around the tower tube 2, the anchor rods 201 are also inserted into the seabed to be fixed, the top ends of the anchor rods 201 are connected with anchor ropes 202, and one ends, away from the anchor rods 201, of the anchor ropes 202 are fixedly connected with the tower tube 2.

Further, in combination with the illustration of fig. 2, three anchor rods 201 are uniformly arranged around the tower drum 2, the anchor ropes 202 are tightened by a tensioning mechanism in the prior art, the anchor rods 201 strengthen the fixation of the tower drum 2, so that the wind and sea wave impact resistance of the tower drum 2 is stronger, and the service life is further prolonged.

As shown in fig. 1 and 2, the generator main body 3, the impeller 5 and the blades 501 are all wind power generation devices in the prior art, the generator main body 3 is provided with a main shaft 301, the impeller 5 is mounted at the end part of the main shaft 301, and three uniformly dispersed blades 501 are fixedly connected with the impeller 5.

Further, a bar-shaped reinforcing rib 502 made of aluminum alloy material is fixed on the back surface of the blade 501, the reinforcing rib 502 is light in weight and can increase the strength of the blade 501, each blade 501 is fixed with one reinforcing rib 502, and the top of the reinforcing rib 502 is aligned with the top of the blade 501.

As shown in fig. 1 and 3, the load buffer transmission assembly 4 is mainly composed of two parts, namely a hydraulic spring 401 and a pull rope 402, wherein the pull rope 402 is a steel wire rope in the prior art, while in the embodiment, the hydraulic spring 401 is mainly composed of three parts, namely a pipe head 4011, a pipe body 4012 and a spring body 4016, the hydraulic spring 401 is consistent with the prior art in structure, and other parts, such as a valve and the like, are included besides the three parts.

Further, as shown in fig. 1 and 3, a connecting hole 4019 is formed on the right side of the tube head 4011, a push-pull rod 4014 is disposed on the left side of the tube head 4011, and a piston 4015 is mounted on the left end of the push-pull rod 4014. The left side of the tube body 4012 is also provided with a connecting hole 4019, and the oil cavity 4013 is provided on the right side of the tube body 4012. The oil chamber 4013 contains oil for buffering, and the piston 4015 extends into the oil chamber 4013.

As shown in fig. 3, a spring body 4016 is sleeved outside the pipe body 4012 and the pipe head 4011, the right end of the spring body 4016 is fixedly connected with the pipe head 4011, and the left end of the spring body 4016 is fixedly connected with the pipe body 4012. The outside of pipe body 4012 is sleeved with an outer sleeve 4017, the outside of pipe head 4011 is sleeved with an inner sleeve 4018, outer sleeve 4017 and inner sleeve 4018 wrap spring body 4016, influence of sea humid environment on spring body 4016 is reduced, and service life of spring body 4016 is prolonged.

The inner sleeve 4018 is inserted into the outer sleeve 4017, the inner diameter of the outer sleeve 4017 is the same as the outer diameter of the inner sleeve 4018, and the inner sleeve 4018 can slide relatively along the outer sleeve 4017.

Moreover, as shown in fig. 3, the end of the inner sleeve 4018 is provided with the inclined surface 6, so that the spring body 4016 is prevented from being blocked by the end of the inner sleeve 4018 when the spring body 4016 is contracted, and the spring body 4016 is more smoothly contracted.

As shown in fig. 1, a protective layer may be disposed on the surface of the tower 2, where the protective layer is a seawater corrosion resistant paint in the prior art, and the seawater corrosion resistant paint is coated on the surface of the tower 2 to delay corrosion of the tower 2.

The implementation principle of the generator set for offshore wind power generation provided by the embodiment of the utility model is as follows:

when the blades 501 bear unbalanced aerodynamic loads, the blades 501 generate vibration, particularly the maximum vibration of the outer end amplitude of the blades 501 is most obvious, the outer ends of the adjacent reinforcing ribs 502 are connected through the load buffer transmission assembly 4, the vibration of the blades 501 is limited, the blades 501 are mutually associated, the unbalanced loads on the blades 501 can automatically reach balance, and load fluctuation transmitted to the impeller 5 is remarkably reduced. The bearing capacity of the blade 501 on aerodynamic load is increased, the safety of the generator set for offshore wind power generation is improved, and the service life is prolonged.

In summary, the embodiments of the present utility model provide a generator set for offshore wind power generation, which has the beneficial effects of reducing vibration and improving the aerodynamic load bearing capacity of the blade 501.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a generating set for offshore wind power generation, its characterized in that, including pile foundation, tower section of thick bamboo, the generator main part that connects gradually, still include load buffer transfer subassembly, the generator main part is provided with the main shaft, be provided with the impeller on the main shaft, be provided with the blade on the impeller, be provided with on the blade extend to the strengthening rib of blade tip, load buffer transfer subassembly includes hydraulic spring, hydraulic spring's both ends all are provided with the stay cord, both ends the stay cord is connected two adjacent respectively the outer end of strengthening rib, evenly be provided with around the tower section of thick bamboo and throw into the stock of seabed, the top of stock be provided with the anchor rope that the tower section of thick bamboo is connected.

2. The generator set for offshore wind power generation according to claim 1, wherein the hydraulic spring comprises a pipe head, a pipe body and a spring body, the pipe body is provided with an oil cavity, the pipe body is provided with a push-pull rod, the push-pull rod is provided with a piston inserted into the oil cavity, one end of the spring body is connected with the pipe head, and the other end of the spring body is connected with the pipe body.

3. A generator set for offshore wind power generation according to claim 2, wherein the tube body is provided with an outer sleeve surrounding one end of the spring body, the tube head is provided with an inner sleeve surrounding the other end of the spring body, and the inner sleeve is inserted into the outer sleeve.

4. A generator set for offshore wind power generation according to claim 3, wherein the inner diameter of the outer sleeve is the same as the outer diameter of the inner sleeve.

5. A generator set for offshore wind power generation according to claim 3, wherein the end of the inner sleeve is provided with a bevel.

6. A generator set for offshore wind power generation according to claim 3, wherein the ends of the tube body and the tube head are provided with connecting holes.

7. Generator set for offshore wind power generation according to any of claims 1-6, characterized in that the surface of the tower is provided with a protective layer.

8. The generator set for offshore wind power generation according to claim 7, wherein the anchor rods are provided with three.