Column type foundation for anti-typhoon combined type fan system

Abstract

The utility model belongs to the field of offshore wind power, and discloses a stand column type foundation for an anti-typhoon combined type fan system, which comprises a tower drum, a fan turnover driving device arranged at the upper end of the tower drum, a fan arranged at the upper end of the fan turnover driving device and a tower drum ballast water tank arranged at the lower end of the tower drum, and the fan overturning driving device drives the fan to overturn, so that the fan is switched between a vertical state and a horizontal state. The fan overturning driving device is additionally arranged at the top of the tower drum, the fan overturning driving device can rotate to enable the blades to be perpendicular to the sea level upwards when typhoons come, then water enters the ballast water tank, the vertical column type platform sinks to the maximum degree, compared with the typhoons 100 meters above the sea level, wind power at the position more than ten meters above the sea level is greatly reduced, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to offshore wind power field, concretely is a kind of anti typhoon grade composite wind turbine system with columnar foundation. BACKGROUND

[0002] Typhoon as a common extreme weather phenomenon, poses a huge threat to offshore wind power. Strong wind and huge wave carried by typhoon can cause serious damage to the structure of wind turbine generator, and even lead to the collapse of the entire wind turbine generator. Therefore, how to design offshore wind power foundation that can resist typhoon invasion has become a key technical challenge for the development of offshore wind power.

[0003] In view of this challenge, the applicant thought to develop an anti typhoon grade composite wind turbine system, which includes a semi-submersible foundation and a columnar foundation, and how to design the structure of the columnar foundation is a difficult problem. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an anti typhoon grade composite wind turbine system with columnar foundation to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An anti typhoon grade composite wind turbine system with columnar foundation includes a tower, a wind turbine overturning drive device set on the upper end of the tower, a wind turbine set on the upper end of the wind turbine overturning drive device, and a tower ballast tank set on the lower end of the tower. The wind turbine overturning drive device drives the wind turbine to overturn, so that the wind turbine switches between vertical and horizontal states.

[0007] Further, the wind turbine overturning drive device includes a wind turbine mounting seat, a wind turbine overturning drive motor and a gear box. The wind turbine mounting seat is set on the upper end of the tower. The two ends of the wind turbine are rotatably mounted on the wind turbine mounting seat through a wind turbine shaft. The wind turbine overturning drive motor and the gear box are set in the wind turbine mounting seat. The wind turbine overturning drive motor, the gear box and the wind turbine shaft on one side of the wind turbine are connected in sequence. The wind turbine overturning drive motor drives the wind turbine to overturn through the gear box.

[0008] Further, a plurality of lifting sliding seats are arranged around the tower. The lifting sliding seats are slidably connected to the tower.

[0009] Further, a plurality of lifting rails are arranged around the tower. The lifting rails are laid on the tower in the vertical direction. The lifting sliding seats are slidably connected to the lifting rails one by one.

[0010] Further, the lifting walking driving device is arranged on the lifting sliding seat, and the lifting sliding seat moves along the lifting guide rail through the lifting walking driving device.

[0011] Further, the lifting rack is vertically arranged on the tower drum, the lifting walking driving device comprises a lifting walking motor and a lifting walking gear, the lifting walking motor is arranged on the lifting sliding seat and connected with the lifting walking gear, and the lifting walking gear is engaged with the lifting rack.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1) the tower drum lower end is provided with a ballast water tank, the internal draught can be changed every hour and every second, the foundation deviation caused by the wind speed and wave force is compensated, the platform draught depth and weight are increased when the wind and wave are large, and good stability is maintained;

[0014] 2) the fan overturning driving device is increased at the tower drum top, the blade can be rotated to be perpendicular to the sea level upward when the typhoon comes, then the ballast water tank is filled with water, the column type platform height is maximally lowered, compared with the typhoon from the sea level 100m upward, the wind force at the sea level several meters away is greatly reduced, and the safety hidden danger is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the anti-typhoon level composite fan system to which the utility model is applied.

[0017] Figure 3 It is a structural schematic diagram of the anti-typhoon level composite fan system to which the utility model is applied. Figure 2 It is an enlarged view of A in the middle.

[0018] Figure 4 It is a connection structure schematic diagram of the fan and the fan overturning driving device in the anti-typhoon level composite fan system to which the utility model is applied.

[0019] Figure 5 It is a connection structure schematic diagram of the rotating sliding seat, the rotating walking driving device, the circular guide rail and the circular rack in the anti-typhoon level composite fan system to which the utility model is applied.

[0020] Figure 6 It is a connection structure schematic diagram of the lifting sliding seat, the lifting walking driving device, the lifting guide rail and the lifting rack in the anti-typhoon level composite fan system to which the utility model is applied.

[0021] In the figure: tower drum 1, fan 2, central ballast water tank 3, corner ballast water tank 4, truss 5, tower drum ballast water tank 6, fan overturning driving device 7, fan mounting seat 700, fan overturning driving motor 701, gear box 702, tower drum lifting and rotating device 8, lifting sliding seat 800, rotating sliding seat 801, cable automatic telescopic mechanism 802, circular guide rail 803, circular rack 804, rotating walking motor 805, rotating walking gear 806, lifting guide rail 807, lifting rack 808, lifting walking motor 809, lifting walking gear 810, damping plate 9. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-6 A typhoon-resistant composite fan system, comprising a semi-submersible foundation and the columnar foundation of the utility model, the semi-submersible foundation comprises a central ballast water tank 3 and a plurality of corner ballast water tanks 4 arranged around the central ballast water tank 3, the central ballast water tank 3 and the corner ballast water tanks 4 are connected through a truss 5, the central ballast water tank 3 is a hollow structure, the columnar foundation comprises a tower drum 1 arranged on the semi-submersible foundation and a fan 2 arranged on the tower drum 1, the tower drum 1 is inserted into the central ballast water tank 3 and has a gap therebetween, the tower drum 1 can move up and down and rotate horizontally relative to the central ballast water tank 3, the lower end of the tower drum 1 is a tower drum ballast water tank 6, and the bottom of the corner ballast water tank 4 is provided with a damping plate 9.

[0024] Please refer to Figure 2 and Figure 4 The columnar foundation further comprises a fan overturning driving device 7 arranged at the upper end of the tower drum 1, the fan 2 is arranged on the tower drum 1 through the fan overturning driving device 7, and the fan overturning driving device 7 drives the fan 2 to overturn, so that the fan 2 is switched between the vertical state and the horizontal state.

[0025] Please refer to Figure 4The fan overturning driving device 7 includes a fan mounting seat 700, a fan overturning driving motor 701 and a gear box 702. The fan mounting seat 700 is arranged on the upper end of the tower drum 1 and has a U-shaped structure. The two ends of the fan 2 are rotatably arranged on the fan mounting seat 700 through a fan rotating shaft. The fan overturning driving motor 701 and the gear box 702 are arranged in the fan mounting seat 700. The fan overturning driving motor 701, the gear box 702 and the fan rotating shaft on one side of the fan 2 are sequentially connected. The fan overturning driving motor 701 drives the fan 2 to overturn through the gear box 702. The gear box 702 is a known technology in the mechanical transmission field. The gear box 702 has two meshing bevel gears and transmission shafts for mounting the bevel gears. One of the transmission shafts is an input shaft connected with the fan overturning driving motor 701. The other transmission shaft is an output shaft connected with the fan rotating shaft.

[0026] When the fan overturning driving device 7 works, the fan overturning driving motor 701 drives the gear box 702 to work, and the gear box 702 drives the fan 2 to overturn.

[0027] It should be noted that the overturning driving is a known technology in the mechanical field, and the fan overturning driving device 7 can also be realized by other structures.

[0028] Continuously referring to Figure 2 and Figure 3 The anti-typhoon composite fan system further includes a tower drum lifting and rotating device 8. The tower drum lifting and rotating device 8 includes a plurality of lifting sliding seats 800, a plurality of rotating sliding seats 801 and a plurality of cable automatic telescopic mechanisms 802. The number of the lifting sliding seats 800, the rotating sliding seats 801 and the cable automatic telescopic mechanisms 802 is the same, and the positions are one-to-one corresponding. The plurality of lifting sliding seats 800 are arranged on the tower drum 1 in a ring shape. The lifting sliding seats 800 are slidably connected with the tower drum 1. The rotating sliding seats 801 are slidably connected with the central ballast water tank 3 in a circular arc track. The cable automatic telescopic mechanisms 802 are used to connect the lifting sliding seats 800 and the rotating sliding seats 801. The circular arc track is arranged along the hollow structure of the central ballast water tank 3, so that the rotating sliding seats 801 can move around the tower drum 1.

[0029] The cable automatic telescopic mechanism 802 can be an electric winch. The main body of the electric winch is arranged on the lifting sliding seat 800 or the rotating sliding seat 801. The cable of the electric winch is connected with the other one.

[0030] Continuously referring to Figure 2 and Figure 3, the tower lifting and rotating device 8 further comprises a circular guide rail 803 corresponding to the circular arc track and a plurality of lifting guide rails 807 arranged around the tower 1, the circular guide rail 803 is arranged on the central ballast tank 3, the tower 1 passes through the middle of the circular guide rail 803, and all rotating sliding seats 801 are in sliding fit with the circular guide rail 803, the lifting guide rails 807 are vertically laid on the tower 1, and the lifting sliding seats 800 are in upward and downward sliding fit with the lifting guide rails 807 in a one-to-one manner.

[0031] Referring to Figure 2 、 Figure 3 and Figure 5 continuously, the tower lifting and rotating device 8 further comprises a rotating walking driving device, the rotating walking driving device is arranged on the rotating sliding seat 801, and the rotating sliding seat 801 moves along the circular guide rail 803 through the rotating walking driving device. The tower lifting and rotating device 8 further comprises a circular rack 804 coaxial with the circular guide rail 803, the circular rack 804 is laid on the circular guide rail 803, and the rotating walking driving device comprises a rotating walking motor 805 and a rotating walking gear 806, the rotating walking motor 805 is arranged in the rotating sliding seat 801 and connected with the rotating walking gear 806, and the rotating walking gear 806 is in mesh with the circular rack 804.

[0032] When the rotating walking driving device works, the rotating walking motor 805 drives the rotating walking gear 806 to rotate, so that the rotating walking gear 806 walks along the circular rack 804, and the whole rotating sliding seat 801 is driven to rotate.

[0033] It should be noted that the realization that the rotating sliding seat 801 autonomously walks on the circular guide rail 803 is a known technology in the mechanical field, and the rotating walking driving device and the circular rack 804 can also be replaced by other structures.

[0034] Referring to Figure 2 、 Figure 3 and Figure 6 continuously, the tower lifting and rotating device 8 further comprises a lifting walking driving device, the lifting walking driving device is arranged on the lifting sliding seat 800, and the lifting sliding seat 800 moves along the lifting guide rail 807 through the lifting walking driving device. The tower lifting and rotating device 8 further comprises a plurality of lifting racks 808 vertically laid on the lifting guide rail 807, and the lifting walking driving device comprises a lifting walking motor 809 and a lifting walking gear 810, the lifting walking motor 809 is arranged in the lifting sliding seat 800 and connected with the lifting walking gear 810, and the lifting walking gear 810 is in mesh with the lifting rack 808.

[0035] When the lifting walking driving device works, the lifting walking motor 809 drives the lifting walking gear 810 to rotate, so that the lifting walking gear 810 walks along the lifting rack 808, and the whole lifting sliding seat 800 is driven to lift.

[0036] It should be noted that the realization of the lifting sliding seat 800 autonomously walking on the lifting guide rail 807 is a known technology in the mechanical field, and the lifting walking driving device and the lifting rack 808 can also be replaced by other structures.

[0037] The central ballast water tank 3 and the corner ballast water tank 4 are both through the built-in water pump to suck and drain the water tank, which is a known technology and will not be repeated. In the case of severe wind and wave, the large central ballast water tank 3 will be filled with water to increase the draft of the entire system, making the entire structure more stable, and the corner ballast water tank 4 is used to adjust the weight and buoyancy by changing the internal horizontal plane to compensate for this error when the fan 2 is working. In addition, the corner ballast water tank 4 is anchored to the seabed by a cable.

[0038] The ballast water tank drives the entire device to dive and rise by changing its weight, and the fan overturning driving device 7 is another core device. The traditional cabin is controlled by the yaw system to make the cabin rotate around the vertical shaft of the tower drum, so that the blades always face the wind direction. The anti-taiwan level composite fan system discards this design, and when a typhoon comes, the fan overturning driving device 7 can make the cabin rotate around the horizontal shaft, and finally make the cabin blades and hub face vertically upward, as shown in Figure 1 .

[0039] The yaw system of the entire system is essential, but the yaw device of the anti-taiwan level composite fan system has changed from the traditional tower drum and cabin to the tower lifting rotating device 8. When the yaw system works and the system needs to face the wind direction, the rotating sliding seat 801 moves around the circular guide rail 803, and after reaching the specified position, the cable is tightened to drive the tower drum 1 to rotate. However, the entire tower drum 1 needs to float and sink, so there is a lifting sliding seat 800 at the end of the connected tower drum 1, which can move up and down through the built-in motor to make the cable always horizontal with the sea level.

[0040] The construction process of the anti-taiwan level composite fan system is as follows:

[0041] Among them, the main components of the semi-submersible foundation are the central ballast water tank, the truss, the corner ballast water tank, and the damping plate. The main components of the columnar foundation are the tower drum ballast water tank, the tower drum, the fan overturning driving device, and the fan.

[0042] The semi-submersible foundation is installed at a designated location on land, then lifted by a crane and placed on a barge, transported to the wharf by the barge, and then sunk and left. The semi-submersible foundation floats and approaches the wharf.

[0043] The column foundation is transported to the wharf by land transport vehicle, the tower cylinder ballast water tank and the tower cylinder and a series of parts thereon are first installed at the wharf, then the crane hoists and places the tower cylinder ballast water tank at the center of the semi-submersible foundation, the column foundation is floated, and the cable automatic extension mechanism is installed.

[0044] After installation, the cable is straightened, the whole column foundation tends to be stable, then the crane starts to install the fan overturning driving device and the fan in sequence.

[0045] It should be noted that all the electric control parts in the anti-typhoon composite fan system are waterproofed by the known waterproof measures.

[0046] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A columnar foundation for a typhoon-resistant hybrid wind turbine system, characterized by, The wind turbine includes a tower drum (1), a fan overturning driving device (7) arranged at the upper end of the tower drum (1), a fan (2) arranged at the upper end of the fan overturning driving device (7), and a tower drum ballast tank (6) arranged at the lower end of the tower drum (1), the fan overturning driving device (7) drives the fan (2) to overturn, so that the fan (2) is switched between the vertical state and the horizontal state.

2. A columnar foundation for a typhoon-resistant composite fan system according to claim 1, wherein The fan overturning driving device (7) includes a fan mounting seat (700), a fan overturning driving motor (701) and a gear box (702), the fan mounting seat (700) is arranged at the upper end of the tower drum (1), both ends of the fan (2) are rotatably mounted on the fan mounting seat (700) through a fan rotating shaft, the fan overturning driving motor (701) and the gear box (702) are arranged in the fan mounting seat (700), the fan overturning driving motor (701), the gear box (702) and the fan rotating shaft on one side of the fan (2) are sequentially connected, and the fan overturning driving motor (701) drives the fan (2) to overturn through the gear box (702).

3. A columnar foundation for a composite typhoon grade fan system according to claim 1, wherein A plurality of lifting sliding seats (800) are arranged around the tower drum (1), and the lifting sliding seat (800) is in sliding fit with the tower drum (1) in the up-down direction.

4. A columnar foundation for a typhoon-resistant composite wind turbine system according to claim 3, wherein A plurality of lifting rails (807) are arranged around the tower drum (1), the lifting rails (807) are arranged on the tower drum (1) in the vertical direction, and the lifting sliding seat (800) is in sliding fit with the lifting rail (807) in the up-down direction.

5. A columnar foundation for a typhoon-resistant composite wind turbine system according to claim 4, wherein The lifting walking driving device is arranged on the lifting sliding seat (800), and the lifting sliding seat (800) moves along the lifting rail (807) through the lifting walking driving device.

6. A columnar foundation for a typhoon-resistant composite wind turbine system according to claim 5, wherein The lifting rack (808) is vertically arranged on the tower drum (1), the lifting walking driving device includes a lifting walking motor (809) and a lifting walking gear (810), the lifting walking motor (809) is arranged on the lifting sliding seat (800) and connected with the lifting walking gear (810), and the lifting walking gear (810) is engaged with the lifting rack (808).

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