CN216894736U

CN216894736U - Semi-submersible floating type fan system

Info

Publication number: CN216894736U
Application number: CN202121592586.7U
Authority: CN
Inventors: 周昳鸣; 李卫东; 郭小江; 刘鑫; 黄和龙; 孙伟鹏; 李旭如; 王俊伟; 黄锐斌; 林健聪; 林育宁; 黄焕良
Original assignee: Huaneng Clean Energy Research Institute; Huaneng Offshore Wind Power Science and Technology Research Co Ltd; China Huaneng Group Co Ltd South Branch; Huaneng Guangdong Shantou Offshore Wind Power Co Ltd
Current assignee: Huaneng Clean Energy Research Institute; Huaneng Offshore Wind Power Science and Technology Research Co Ltd; China Huaneng Group Co Ltd South Branch; Huaneng Guangdong Shantou Offshore Wind Power Co Ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2022-07-05
Anticipated expiration: 2031-07-13

Abstract

The application provides a semi-submerged formula floats formula fan system, including the base, set up in fan body on the base with set up in a plurality of anchor basis of base week side, it is a plurality of anchor basis respectively with the center of base sets up with the equidistant of predetermined distance, the base with anchor basis is connected through the mooring cable more than two at least, through set up fan body on the base, and a plurality of anchor basis set up in base week side, and base and anchor basis are connected through the mooring cable more than two at least, reach and stabilize fixedly to the fan, and a plurality of anchor basis are fixed with the base respectively, and base and anchor basis are connected through the mooring cable more than two at least, and then the condition that single mooring cable fracture caused the fan to drift takes place.

Description

Semi-submersible floating type fan system

Technical Field

The application relates to the technical field of fans, in particular to a semi-submersible floating type fan system.

Background

With the rapid development of economy in China, the contradiction between energy and environmental protection is severe day by day, offshore wind power is clean, safe and renewable energy, is the fastest energy utilization in the world, is a power generation mode with the greatest large-scale commercial development prospect, and has continuously improved position in energy strategy of various countries. Currently, most offshore wind farms built in the world are offshore wind farms. In the future, the trend of offshore wind power from shallow sea to deep sea will be a necessary development trend. The semi-submersible floating type offshore wind turbine generator set has the most development prospect due to the characteristics of stable structure, reliable operation, flexible movement, suitability for deep sea and the like. In current floating type fan, the easy transmission fracture of mooring cable causes the mooring cable to become invalid, leads to floating type fan to remove the condition of colliding and take place.

Disclosure of Invention

The present application is directed to solving, at least to some extent, one of the technical problems in the related art.

For this reason, the aim at of this application provides a formula fan is floated to semi-submerged formula, through set up the fan body on the base, a plurality of anchor basis set up in base week side, and base and anchor basis are connected through the mooring cable more than two at least, reach and stably fix the fan, a plurality of anchor basis are fixed with the base respectively, and base and anchor basis are connected through the mooring cable more than two at least, and then the condition that single mooring cable fracture caused the fan drift to collide of prevention takes place.

In order to reach above-mentioned purpose, the semi-submersible type floating fan that this application provided, including the base, set up in fan body on the base with set up in a plurality of anchor basis of base week side are a plurality of anchor basis respectively with the center of base is with the equidistant setting of predetermined distance, the base with anchor basis connects through the mooring cable more than two at least.

Further, the base comprises a plurality of trusses and a plurality of buoys, and two adjacent buoys are fixedly connected through the trusses.

A semi-submersible floating type fan system comprises a plurality of fans which are arranged on the sea surface at intervals.

In this application, arrange through the fan to scale development to reach and reduce the wake influence, increase the generated energy, reduce anchor basis quantity, prevent that the mooring cable inefficacy causes the effect that floats formula fan removal collision.

Furthermore, a plurality of the fans are arranged on the sea surface in a rectangular array.

Further, the fans which are adjacent in the longitudinal direction are symmetrically arranged pairwise and share the anchoring foundation of the adjacent side.

Furthermore, the fans are arranged in multiple rows, and the fans in the multiple rows are arranged in a staggered mode.

Furthermore, adjacent fans share the anchoring foundation on the adjacent side, and the plurality of semi-submersible floating fans are mutually connected through the shared anchoring foundation.

Furthermore, the fans are arranged in a triangular array, and the minimum distance between the anchoring bases of adjacent fans is 2 times of the preset distance.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of a semi-submersible floating wind turbine according to an embodiment of the present disclosure;

FIG. 2 is a schematic plan view of a semi-submersible floating wind turbine according to another embodiment of the present disclosure;

FIG. 3 is a schematic view of the range of motion of a semi-submersible floating wind turbine after 2 mooring lines on one side of the floating wind turbine fail at the same time according to another embodiment of the present application;

FIG. 4 is a schematic view of the range of motion of a semi-submersible floating wind turbine after 4 mooring lines on both sides of the floating wind turbine have failed simultaneously according to another embodiment of the present disclosure;

FIG. 5 is a first schematic plan view of a semi-submersible floating fan system according to another embodiment of the present disclosure;

FIG. 6 is a second schematic plan view of a semi-submersible floating wind turbine system according to another embodiment of the present disclosure;

FIG. 7 is a schematic plan view of a semi-submersible floating wind turbine system according to another embodiment of the present disclosure

FIG. 8 is a schematic plan view of a semi-submersible floating fan system according to another embodiment of the present disclosure

Fig. 9 is a schematic plan view of a semi-submersible floating fan system according to another embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the application include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

Fig. 1 is a schematic structural diagram of a semi-submersible floating wind turbine according to an embodiment of the present disclosure.

Referring to fig. 1, a semi-submersible floating type fan comprises a base 1, a fan body 2 arranged on the base 1 and a plurality of anchoring bases 3 arranged on the periphery of the base 1, wherein the anchoring bases 3 are arranged at equal intervals with a preset distance from the center of the base 1 respectively, so that the base can be subjected to balanced force application in different directions, and the fan is guaranteed to be stably fixed on the sea surface. The foundation 1 and the anchoring base 3 are connected by at least two mooring lines 4. Base and anchor basis are connected through two or more mooring cables, can avoid the base unstability that single mooring cable fracture caused, and then cause the fan drift.

The base 1 includes a plurality of trusses 11 and a plurality of flotation pontoon 12, adjacent two pass through between the flotation pontoon 12 truss 11 fixed connection to strengthen the steadiness of connecting between a plurality of flotation pontoons, form stable distributed structure, be convenient for support the fan. The truss includes stull and bracing, realizes the connection of adjacent flotation pontoon with a plurality of angles jointly through stull and bracing, can guarantee that whole fan device has stronger connection stability. The cross brace and the inclined brace are both steel pipelines. Specifically, both the cross brace and the inclined brace can be steel pipes, so that steel can be saved and the requirement for stable connection can be met compared with a steel column.

Specifically, the flotation pontoon 1 is three, and is three the line of flotation pontoon 1 forms regular triangle, as shown in fig. 1 to this combines truss 2 to connect these three flotation pontoons 1, can realize that the triangle is stable, when guaranteeing sufficient stability and intensity, can also material saving to the utmost, final reduce cost.

Specifically, anchor basis 4 is three, and is three anchor basis 4 corresponds the setting respectively three the outside of flotation pontoon 1, the line of three anchor basis also forms regular triangle, and each flotation pontoon outside is fixed connection anchor basis respectively, when wholly fixing the fan device, also can avoid single mooring cable fracture to cause the condition of fan drift to take place.

The buoy 1 is of a hollow columnar structure, has good buoyancy, and can bear a fan to stand above the sea.

Referring to fig. 2-4, if the probability of failure of a single mooring line is P, the probability of movement of the floating wind turbine caused by simultaneous failure of 2 mooring lines on one side is P-3P²If the horizontal radius of the mooring cable of the floating fan is R, the floating fan can move in a circular range with the radius of R and the original position as the center of a circle after failure, if the probability of failure of a single mooring cable is p,the probability that the floating fan moves due to the simultaneous failure of 4 mooring cables on two sides is P ═ 3P⁴If the horizontal radius of the mooring cable of the floating fan is R, the maximum moving range of the floating fan after failure moves within a circular range with one of the original 3 anchoring bases as the center of a circle and the radius of the mooring cable of the floating fan as R.

Referring to fig. 5, the fans are arranged on the sea surface in a rectangular array, and it can be understood that the fans are arranged on the sea surface at equal intervals in the longitudinal direction and the transverse direction, so that the fans are integrally arranged in the rectangular array, and if the probability of failure of a single mooring cable is p-5%, when the fans are arranged in the rectangular array, the probability of movement caused by simultaneous failure of 2 mooring cables on one side of each fan is 0.75%, and the occurrence probability is extremely low; the probability of movement and possible collision due to simultaneous failure of 4 mooring lines on both sides is 0.002%, which is almost negligible.

Referring to fig. 6, the fans which are adjacent in the longitudinal direction are arranged in pairwise symmetry and share the anchor bases 3 on the adjacent sides, so that the number of the anchor bases can be reduced without affecting the probability that movement and collision are possible due to failure of mooring cables, and further, the cost is reduced.

Referring to fig. 7, a plurality of the fans are arranged in multiple rows, and the fans in the multiple rows are arranged in a staggered manner, so that the wake flow influence between the fans can be reduced and the power generation efficiency can be improved under the condition that the collision probability of the fans is low.

Referring to fig. 8, the adjacent fans share the anchor foundation 3 on the adjacent side, and the plurality of semi-submersible floating fans are mutually connected through the shared anchor foundation 3, so that the number of the anchor foundations is reduced, the overall stability of fan connection is improved, and the horizontal stress characteristic of the anchor foundation is improved.

Referring to fig. 9, the fans are arranged in a triangular array, the minimum distance between the anchoring bases 3 of adjacent fans is 2 times of the predetermined distance, and the fans are arranged at a larger interval, so that collision may occur when two adjacent fans have 8 mooring cables on four sides and fail at the same time; the probability of failure and collision of the fan is further reduced, and the probability of breakage and collision of the mooring cable of the fan is extremely low by the scheme.

A failure control method of a semi-submersible floating type fan system is applied to the fan system and comprises the following steps,

s10, setting the movement circle center positions of all fans in the whole field and the movement radius r1 of each fan;

specifically, the range of r1 is 1000-3000m, which meets the requirements of most fans in the market.

S20, monitoring the distance r2 between the current position of each fan and the corresponding movement circle center;

it can be understood that the r2 range is determined according to the states of the mooring cables, when the mooring cables are not damaged, r2 is 0, when two or four of two broken sides of the mooring cables are broken, r2 is generally smaller than r1, when the mooring cables are broken at three measuring points and six, the maximum r2 can be infinite, and when three sides and 6 mooring cables of the fan fail at the same time, a floating fan cabin breaking program can be started to guide the fan to sink to avoid damage to other fans in the wind field.

And S30, operating the fan according to the relation between r1 and r 2.

According to the scheme, the number of the draught fans in the sea area required to be approved is increased, the generated energy of the sea area in unit area is increased, and the health monitoring of the mooring cables of the draught fans and the self-sinking control strategy are combined to guarantee that other floating draught fans in the wind field are not collided and damaged when the mooring system of the floating draught fans fails.

Operating the fan according to the relation of r1 and r2 comprises starting a cabin breaking device on the fan to break a cabin when r2> r 1; in this embodiment, the cabin breaking device may be explosive equipment, and directly explodes the blower to sink. When r2< r1, monitoring the stress value of the mooring cable 4 of the fan, wherein the stress value can be monitored through a pressure sensor, and when the stress value is smaller than a preset value, the fan is overhauled.

The range of the preset value is 50-150MPa, and misjudgment on the state of the mooring cable is avoided.

The method comprises the following steps of:

and finishing micro site selection preliminarily.

The anchoring base is manufactured in the factory.

And (4) carrying out drilling survey on the floating wind field, and determining the machine position.

And (5) sinking the pile to install an anchoring foundation.

And towing the fan to a machine position, and installing a mooring cable.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. The utility model provides a semi-submerged formula floating fan system, its characterized in that, includes a plurality of fans, the fan include base (1), set up in fan body (2) on base (1) with set up in a plurality of anchor basis (3) of base (1) week side, it is a plurality of anchor basis (3) respectively with the center of base (1) sets up with the equidistant of predetermined distance, and is a plurality of the fan is interval arrangement on the sea and sets up, and is a plurality of the fan is the rectangular array setting on the sea, and is adjacent on vertical two bisymmetry settings of fan and share anchor basis (3) of its adjacent side, and are a plurality of the fan is the multirow and arranges the setting, and each row crisscross setting between the fan.

2. Semi-submersible floating wind turbine system according to claim 1, wherein adjacent wind turbines share their adjacent side anchoring foundations (3), a plurality of the semi-submersible floating wind turbines being mutually coupled by a common anchoring foundation (3).

3. Semi-submersible floating wind turbine system according to claim 2, wherein a plurality of the wind turbines are arranged in a triangular array and the minimum distance of the anchoring bases (3) of adjacent wind turbines is 2 times the predetermined distance.