CN211869613U - Single point mooring positioning system of floating type fan - Google Patents
Single point mooring positioning system of floating type fan Download PDFInfo
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- CN211869613U CN211869613U CN202020919783.4U CN202020919783U CN211869613U CN 211869613 U CN211869613 U CN 211869613U CN 202020919783 U CN202020919783 U CN 202020919783U CN 211869613 U CN211869613 U CN 211869613U
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Abstract
The utility model discloses a float single-point mooring positioning system of formula fan, including mooring cable, anchor equipment and capstan head, the one end of mooring cable is installed in the lower part of capstan head, and the other end of mooring cable passes through anchor equipment to be connected with the seabed, and the capstan head includes steel float shell and mooring cable connection center spare, and mooring cable connection center spare is installed in the below of float shell, and mooring cable connection center spare passes through the bearing with the float shell to be connected, and mooring cable connection center spare is rotatory with arbitrary angle for the float shell. The single-point mooring system enables the floating wind turbine to have automatic yawing capacity, the floating foundation can rotate at any angle, and when the wind direction changes, the fan foundation automatically adjusts the direction of the impeller according to the wind direction, so that automatic wind alignment is realized.
Description
Technical Field
The utility model relates to a marine showy formula fan technical field, in particular to float single-point mooring positioning system of formula fan.
Background
The offshore floating type fan system can be subjected to the combined load action of complex wind, wave and flow, under different sea conditions, the movement of the fan within an allowable range needs to be limited, the normal work and stable power output of the fan are ensured, and the mooring positioning system of the floating type fan plays an important role.
Currently, mooring systems commonly used in the field of marine engineering can be divided into multi-point mooring and single-point mooring. The multi-point mooring generally has a plurality of mooring cables which are arranged dispersedly, can resist the load of external wind, wave and flow on average, provide restoring force for the floating foundation from all directions and keep the stability of the platform movement. The single point mooring system is characterized in that the floating foundation can freely rotate around a single point, so that the acting force of stormy waves and currents is effectively reduced, and the size of an anchor chain line is correspondingly reduced.
In order to ensure that the fan captures the maximum wind speed in the working process, the direction of the wind wheel needs to be always opposite to the wind, so that the power generation efficiency is improved. In order to make the wind wheel always face the stable wind direction, a yaw system is usually adopted as a wind generating set subsystem to adjust the direction of an impeller, so that the fan keeps facing the wind direction to capture the maximum wind energy. The use of a yaw system belongs to an active wind adjustment mode. However, the yawing system is generally installed at the top end of a tower column, the marine natural environment is severe, air is wet, the corrosivity is high, the steel structure of a fan is easily corroded, the yawing system is damaged, and the maintenance cost and the maintenance difficulty are increased. Meanwhile, the yaw system is arranged, so that the overall gravity height of the fan can be increased, the stability is poor, and the safe operation of the offshore floating fan is not facilitated. If the fan has the automatic yawing capacity, the problem can be effectively solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a single-point mooring positioning system who floats formula fan, have automatic driftage function.
The technical scheme of the utility model is that: the single-point mooring positioning system of the floating type fan comprises a mooring cable, anchoring equipment and a turret, wherein one end of the mooring cable is installed at the lower part of the turret, the other end of the mooring cable is connected with a seabed through the anchoring equipment, the turret comprises a steel floater shell and a mooring cable connecting central piece, the mooring cable connecting central piece is installed below the floater shell, the mooring cable connecting central piece is connected with the floater shell through a bearing, and the mooring cable connecting central piece rotates at any angle relative to the floater shell. The plurality of mooring cables play a role in positioning in the whole floating type fan, so that the position of the floating type fan is kept in a certain range, the anchoring equipment is connected and positioned with a seabed, the top of the turret is connected with the fan foundation through bolts, the turret can be arranged right below a tower column of the fan or at other positions of the fan foundation, and the fan can change along with the wind direction to automatically perform yaw control.
The floater shell comprises an upper cover plate, a side plate and a lower partition plate, a water pressing cabin and a waterproof empty cabin are arranged in an inner area defined by the upper cover plate, the side plate and the lower partition plate, and the water pressing cabin is located on the periphery of the waterproof empty cabin. When the turret is installed on the sea, the water pressing cabin can realize the floating and sinking actions of the whole turret through water drainage and water pressing.
The mooring cable connecting central piece is disc-shaped and is connected with the shell through a roller bearing. Wherein, adopt this kind of structure, can realize that the fan basis is 360 rotations of unlimited times around mooring cable connecting center spare.
The mooring cable adopts one or more of synthetic fiber, steel wire rope and iron chain. Wherein the material of the mooring line can be determined according to the water depth and sea state.
The mooring cable is connected with the seabed through anchoring equipment, and the anchoring equipment adopts a towing anchor, a suction anchor or a pile anchor. Wherein the anchoring device is fixed to the seabed, constraining the turret position and thereby keeping the position of the floating wind turbine within an allowable range.
The mooring lines are provided with 4-8 mooring lines. Wherein the included angle between adjacent mooring lines is kept consistent.
And a water pressure pump is also arranged in the waterproof empty cabin. The water pressurizing pump is used for realizing water pressurizing and draining actions of the water pressurizing cabin.
A ladder stand is arranged in the waterproof empty cabin. Wherein, the cat ladder in the waterproof cabin facilitates the installation maintainer business turn over.
The mooring mode of the mooring cable adopts a catenary type or a tensioning type. Wherein, the mooring mode and the mooring radius can be determined according to the water depth and the sea condition; if the motion amplitude of the floating type fan is large, in order to avoid the influence on the submarine cable, a tensioning type mooring mode can be adopted, otherwise, a catenary type mooring mode can be adopted.
A marine installation method of a single point mooring positioning system of a floating type fan comprises the following steps:
(1) one end of the mooring cable is connected with the seabed, and the other end of the mooring cable is connected with the floating ball and floats on the sea surface;
(2) transporting the turret to an installation site, the mooring line being connected to the turret;
(3) towing the fan foundation to an installation site, putting the turret into water by a crane ship, opening the pressurized water tank and putting ballast water into the tank, and sinking the turret to the lower part of the floating foundation;
(4) and discharging ballast water in the pressurized water tank, and floating the turret until the turret is butted with the fan foundation.
Compared with the prior art, the utility model, following beneficial effect has:
the single-point mooring system enables the floating wind turbine to have automatic yawing capacity, the floating foundation can rotate at any angle, and when the wind direction changes, the fan foundation automatically adjusts the direction of the impeller according to the wind direction, so that automatic wind alignment is realized.
The single-point mooring system can omit or simplify a yaw system of the traditional fan, is favorable for reducing the weight of the fan, reduces the integral gravity center of the floating fan and is favorable for the stability of the floating fan.
The single point mooring system can save or simplify a yaw system of a traditional fan, so that the use cost and the maintenance cost of the floating wind turbine are reduced.
The single-point mooring system is simple in structure and low in cost, and can be quickly connected with and disconnected from a fan foundation.
Drawings
Fig. 1 is a schematic structural diagram of a single point mooring and positioning system of the floating wind turbine.
Fig. 2 is a front view of the present floating wind turbine single point mooring positioning system.
Fig. 3 is a schematic structural view of the turret.
Fig. 4 is a schematic view of the external structure of the float housing.
Fig. 5 is a simplified structural diagram of the interior of the float housing.
Fig. 6 is a schematic view of the configuration of the mooring line connecting centerpiece.
Fig. 7 is a schematic structural view of the three-column floating fan of embodiment 1.
Wherein, as shown in the figure, 1 is a turret, 2 is a mooring cable, 3 is an anchoring device, 4 is a roller bearing, 5 is a mooring cable connecting central piece, 6 is an upper cover plate, 7 is a water pressing cabin, 8 is a water pressing pump, 9 is a side plate, 10 is a lower clapboard, and 11 is a waterproof empty cabin.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Examples
In this embodiment, as shown in fig. 1 and 2, the single point mooring and positioning system for a floating wind turbine includes a mooring cable 2, an anchoring device 3, and a turret 1, wherein one end of the mooring cable is installed at a lower portion of the turret, the other end of the mooring cable is connected to a seabed through the anchoring device, the turret includes a steel float housing and a mooring cable connection center 5, the mooring cable connection center is installed below the float housing, the mooring cable connection center is connected to the float housing through a bearing, and the mooring cable connection center rotates at any angle relative to the float housing. The plurality of mooring cables play a role in positioning in the whole floating type fan, so that the position of the floating type fan is kept in a certain range, the anchoring equipment is connected and positioned with a seabed, the top of the turret is connected with the fan foundation through bolts, the turret can be arranged right below a tower column of the fan or at other positions of the fan foundation, and the fan can change along with the wind direction to automatically perform yaw control.
As shown in fig. 3-5, the float shell comprises an upper cover plate 6, a side plate 9 and a lower partition plate 10, a water pressurizing cabin 7 and a waterproof empty cabin 11 are arranged in an inner area defined by the upper cover plate, the side plate and the lower partition plate, and the water pressurizing cabin is positioned at the periphery of the waterproof empty cabin. When the turret is installed on the sea, the water pressing cabin can realize the floating and sinking actions of the whole turret through water drainage and water pressing. And a water pressure pump 8 is also arranged in the waterproof empty cabin. The water pressurizing pump is used for realizing water pressurizing and draining actions of the water pressurizing cabin. A ladder stand is arranged in the waterproof empty cabin. Wherein, the cat ladder in the waterproof cabin facilitates the installation maintainer business turn over.
As shown in fig. 6, the mooring line connecting hub has a disk shape and is connected to the housing by means of roller bearings 4. Wherein, adopt this kind of structure, can realize that the fan basis is 360 rotations of unlimited times around mooring cable connecting center spare.
The mooring cable adopts one or more of synthetic fiber, steel wire rope and iron chain. Wherein the material of the mooring line can be determined according to the water depth and sea state. The mooring lines are provided with 6. Wherein the included angle between adjacent mooring lines is kept consistent.
The mooring cable is connected with the seabed through anchoring equipment, and the anchoring equipment adopts a towing anchor, a suction anchor or a pile anchor. Wherein the anchoring device is fixed to the seabed, constraining the turret position and thereby keeping the position of the floating wind turbine within an allowable range.
The mooring mode of the mooring cable adopts a catenary type or a tensioning type. Wherein, the mooring mode and the mooring radius can be determined according to the water depth and the sea condition; if the motion amplitude of the floating type fan is large, in order to avoid the influence on the submarine cable, a tensioning type mooring mode can be adopted, otherwise, a catenary type mooring mode can be adopted.
As shown in fig. 7, the floating wind turbine in the form of a three-column foundation is taken as an example in the present embodiment, and the single-point mooring positioning system is installed below one of the columns, and a concave position for accommodating the turret is arranged below the column.
The embodiment also provides an offshore installation method of the single-point mooring and positioning system of the floating type wind turbine, which specifically comprises the following steps:
(1) one end of each mooring cable 6 is connected with a towing anchor, the towing anchor is fixed with the seabed, and the other end of each mooring cable is connected with a floating ball which floats on the sea surface;
(2) the turret is transported to an installation site by using a crane ship, a high working platform, a low working platform and an auxiliary working crane are further arranged beside a main crane of the crane ship, the main crane lifts the turret on the low platform, an upper cover plate of the turret is taken down, one floating end of each mooring cable is connected to a mooring cable connecting center piece by using the auxiliary crane, every two symmetrical mooring cables are simultaneously lifted and connected, and the upper cover plate is installed back after all the mooring cables are installed; namely, the connection of the mooring cable and the turret is completed;
(3) towing the wind turbine foundation to an installation site, hoisting a tower crane to the position close to the wind turbine foundation by a crane ship, putting the turret into water by the crane ship, opening a pressurized water cabin and putting ballast water into the water, so that the turret sinks below the floating foundation;
(4) and connecting the turret with the fan foundation by using a temporary cable, and discharging ballast water in the pressurized water tank to enable the turret to float along the temporary cable until the turret is in butt joint with the fan foundation.
As described above, the present invention can be realized well, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present invention are intended to be covered by the scope of the claims of the present invention.
Claims (9)
1. The single-point mooring positioning system of the floating type fan is characterized by comprising a mooring cable, anchoring equipment and a turret, wherein one end of the mooring cable is installed at the lower part of the turret, the other end of the mooring cable is connected with a seabed through the anchoring equipment, the turret comprises a steel floater shell and a mooring cable connecting central piece, the mooring cable connecting central piece is installed below the floater shell, the mooring cable connecting central piece is connected with the floater shell through a bearing, and the mooring cable connecting central piece rotates at any angle relative to the floater shell.
2. The floating fan single point mooring and positioning system as recited in claim 1, wherein the float housing comprises an upper cover plate, side plates and a lower partition plate, wherein a pressurized water tank and a waterproof empty tank are arranged in an inner area defined by the upper cover plate, the side plates and the lower partition plate, and the pressurized water tank is located at the periphery of the waterproof empty tank.
3. The floating wind turbine single point mooring positioning system of claim 1, wherein the mooring line docking hub is disk shaped and is coupled to the housing by roller bearings.
4. The single point mooring and positioning system of a floating wind turbine as recited in claim 1, wherein the mooring line comprises one or more of synthetic fiber, steel wire rope, and iron chain.
5. The floating wind turbine single point mooring positioning system of claim 1, wherein the mooring line is connected to the seabed by an anchoring device, the anchoring device being a drag anchor, a suction anchor or a pile anchor.
6. The floating wind turbine single point mooring positioning system of claim 1, wherein the mooring lines are provided with 4-8 mooring lines.
7. The floating wind turbine single point mooring and positioning system as recited in claim 2, wherein a water pump is further disposed in the waterproof empty chamber.
8. The floating fan single point mooring and positioning system as recited in claim 2, wherein a ladder is provided within the watertight compartment.
9. The floating wind turbine single point mooring and positioning system of claim 1, wherein the mooring lines are moored in a catenary or taut manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020919783.4U CN211869613U (en) | 2020-05-27 | 2020-05-27 | Single point mooring positioning system of floating type fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020919783.4U CN211869613U (en) | 2020-05-27 | 2020-05-27 | Single point mooring positioning system of floating type fan |
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| CN211869613U true CN211869613U (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020919783.4U Active CN211869613U (en) | 2020-05-27 | 2020-05-27 | Single point mooring positioning system of floating type fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753177A (en) * | 2021-08-24 | 2021-12-07 | 中国华能集团清洁能源技术研究院有限公司 | Mooring cable fixing structure, floating mooring system and offshore wind generating set |
-
2020
- 2020-05-27 CN CN202020919783.4U patent/CN211869613U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753177A (en) * | 2021-08-24 | 2021-12-07 | 中国华能集团清洁能源技术研究院有限公司 | Mooring cable fixing structure, floating mooring system and offshore wind generating set |
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