CN206634171U - Semi-submersible type deep-sea wind-powered electricity generation mounting platform - Google Patents

Abstract

The utility model discloses a kind of semi-submersible type deep-sea wind-powered electricity generation mounting platform, including floating drum, stull, blower fan transport deck, column, upper deck bag；Floating drum is two, is symmetrically dispersed in the left and right sides of main platform body direct of travel；Upper deck bag, take the shape of the letter U setting, and blind end is located at the front end of main platform body direct of travel, and U-shaped upper deck Bao Ze by upright supports above floating drum；Blower fan transport deck, be truss structure, positioned at the lower section of U-shaped upper deck bag, and with the inside barbed portion face of U-shaped upper deck bag；The bottom of blower fan transport deck is respectively with fixation, and the side of blower fan transport deck is fixed with column；The base frock of fixed blower fan is equipped with blower fan transport deck；It follows that the utility model can realize that pylon, cabin and the blade of wind-driven generator carry out lifting operation as an entirety, to shorten the engineering construction cycle, installation effectiveness is improved.

Description

Semi-submersible type deep sea wind power installation platform

Technical Field

The utility model belongs to deep sea platform structural design field, concretely relates to deep sea semi-submerged formula wind-powered electricity generation transportation installation integration platform.

Background

Wind power generation is the fastest growing green energy technology in the world. Offshore wind power is the leading edge of wind power technology and is also the key field of international wind power industry development. On the whole, offshore wind power is still in the initial development stage, and the current mainstream fan unit forms are mainly divided into the following categories according to the basic forms: gravity type foundation, single pile type foundation, tripod type foundation, jacket type foundation, multi-pile type foundation, cylindrical foundation, floating type foundation and the like. In recent years, offshore wind power utilization is generally concentrated in offshore sea areas, and with development of offshore resources and regional and environmental limitations of offshore water areas, offshore wind potentials are bound to develop into deep sea. The pile foundation type wind turbine foundation with more shallow sea applications cannot meet the requirements of deep sea development, and the floating foundation is more adaptable due to the trend of large-scale offshore wind turbines due to the cost. The development from a fixed foundation to a floating foundation is also one of the trends.

Compared with the onshore wind turbine generator, the offshore wind turbine generator is higher in technical difficulty, and is one of key technologies for offshore wind farm construction. An offshore installation work platform is required for completing the hoisting. Mainly comprises the following steps: large crane ships, self-elevating (non-self-elevating) platforms, self-elevating ships with positioning pile legs, and self-elevating installation ships. According to the comparison of the current main ship types for wind power installation, as shown in table 1, in order to solve the future trend that the offshore wind turbine is large-sized and is pushed to the deep sea, the semi-submersible type wind power installation ship has the characteristics of good wave resistance, deep operation water depth, suitability for integral transportation and installation of the wind turbine and the like, and is one of the future development trends of deep sea wind power installation markets.

Research shows that the wind energy reserves of unit area of most sea areas in the world are 2 multiplied by 103(kW.h)/m2, and the wind energy reserves belong to the enrichment area of wind energy resources. According to estimation, the installed capacity of a wind turbine in a region with the depth of 60-900m in the global sea is about 17.4 x 108kW, so that the deep-sea wind power generation potential is huge. Due to the fact that deep sea climate is bad, effective operation time is short, unit installation is the link with the highest construction difficulty and the largest risk in the whole offshore wind farm construction process, and success or failure of the whole project is directly determined. The unit installation technology comprises an installation platform and an installation mode. At present, most of offshore wind turbine generators are mainly transported, hoisted and maintained by depending on the existing ship platform. Such as 3 types of traditional crane ships (self-propelled and non-self-elevating), crane installation platforms (self-propelled and non-self-propelled) and self-propelled and self-elevating crane ships. The existing installation technology cannot meet new environmental requirements. The semi-submersible wind power installation ship has the characteristics of good wave resistance, deep operation water depth, suitability for integral transportation and installation of a fan and the like, and a floating foundation, integral installation and deep sea installation platform are very likely to become the mainstream technology of offshore wind power generation in the future.

TABLE 1 main ship type for wind power installation

Therefore, it is necessary to design a deep-sea semi-submersible windmill installation platform that satisfies a semi-submersible platform that integrates transportation and installation of the entire floating foundation windmill device, to solve the problem of transportation and installation of the deep-sea floating foundation windmill, and to solve the trend of the future large-scale offshore wind turbine to the deep sea.

SUMMERY OF THE UTILITY MODEL

The technical purpose of the utility model is to provide a semi-submerged formula deep sea wind-powered electricity generation mounting platform can realize that tower section of thick bamboo, cabin and the blade of fan transports and hoist and mount operation as a whole to shorten engineering construction cycle, improve the installation effectiveness.

In order to achieve the technical purpose, the utility model adopts the following technical proposal:

a semi-submersible type deep sea wind power installation platform comprises a platform main body, wherein the platform main body comprises a buoy, a cross brace, a fan transportation deck, a stand column and an upper deck bag; wherein: the two buoys are respectively a buoy a and a buoy b and are symmetrically distributed on the left side and the right side of the traveling direction of the platform main body; the upper deck bag is arranged in a U shape; the closed end of the U-shaped upper deck bag is positioned at the front end of the traveling direction of the platform main body, and two side walls of the U-shaped upper deck bag are respectively supported above the corresponding buoy a and the buoy b through the upright posts; the number of the upright columns is 2n, n is more than or equal to 2, and the upright columns are arranged at intervals in pairs along the advancing direction of the platform main body; one upright post a of each pair of upright posts is arranged on a buoy a, the other upright post b is arranged on a buoy b, and the upright posts a and the upright posts b are connected through cross braces; the fan transportation deck is of a truss structure, is positioned below the U-shaped upper deck bag and is opposite to the inner gap part of the U-shaped upper deck bag; the bottom layer of the fan transport deck is respectively fixed with the buoy a and the buoy b, and the side surface of the fan transport deck is fixed with the upright post; and a base tool for fixing the fan is arranged on the fan transportation deck.

As a further improvement of the utility model, the number of the upright columns is four, one end of each upright column is connected with the buoy, and the other end is connected with the upper deck bag; the upright posts are connected into a whole through the fan transportation deck.

As a further improvement of the utility model, each upright post is arranged in three layers in height, and each layer of upright post is provided with a ballast tank; and the upright post is provided with a stair passage and an equipment area.

As a further improvement of the utility model, the upper deck bag from top to bottom, include main deck, middle deck, lower deck and deck bag under deck in proper order.

As a further improvement of the utility model, the deck bottom cabin is provided with a functional liquid cabin; the lower deck is provided with a cabin, a distribution room, an anchor machine room and a living area; while the middle deck lays out the living area.

As a further improvement of the utility model, the crane is assembled at the left string tail part of the platform main body, and the arm placing frame used for horizontally placing the crane jib is arranged at the front end of the advancing direction of the platform main body.

As a further improvement of the utility model, the closed end of the U-shaped upper deck bag is provided with a bridge deck through an upper multi-deck living area; and a ship bridge deck is provided with a ship aircraft stopping position.

As a further improvement, the upper multilayer deck living area comprises a three-layer deck, namely a deck A, a deck B and a deck C which are sequentially arranged from top to bottom.

According to foretell technical scheme, for prior art, the utility model discloses following beneficial effect has:

the platform main body is designed into a semi-submersible structure, namely two streamline pontoons which are symmetrically arranged from left to right are adopted to provide buoyancy, so that the integral structure is supported; then, the fan transport deck is set to be of a truss structure, so that the weight of a steel structure is saved, and the attack of sea waves is reduced; the fan transportation deck is positioned above the middle of the floating barrel, so that the height and the gravity center of fan transportation can be reduced, and the stability of the platform during transportation is improved; the transport deck is connected between the two floating cylinders as a connecting bridge and is connected with the upright posts, so that the transverse and torsional strength of the platform is improved; in addition, the tail part and the middle part of the upper deck are provided with U-shaped large notch structures and are positioned above the fan transportation deck, namely, the inner notch part of the U-shaped deck is convenient for the tower barrel, the engine room and the blades of the fan to be integrally placed and is also convenient for the fan to be lifted; the offshore wind turbine transportation and installation platform realizes the transportation and installation task target of the offshore wind turbine with the large-scale deep sea floating foundation without carrying out segmental transportation and segmental assembly, fully considers the requirements of economy and safety, and enhances the applicability of the platform in a target sea area.

Drawings

Fig. 1 is a schematic structural view (side view) of the semi-submersible type deep-sea wind power installation platform of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is an analysis diagram of the overall strength of the semi-submersible type deep-sea wind power installation platform under the self-storage working condition;

in the figure: 1-a propeller; 2-a buoy; 3-upright column; 4, putting the bags on the upper armor plate; 5-a lift; 6-tying and fixing a winch; 7-bridge deck; 8-placing the arm support; 9-a crane; 10-a fan transport deck; 11-upper multi-deck living quarters.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. The relative arrangement of parts and steps set forth in these embodiments is illustrative only, unless specifically stated otherwise. Expressions and numerical values do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented in other different ways (rotated 90 degrees or at other orientations).

As shown in fig. 1 to 3, semi-submersible deep sea wind power mounting platform, including the platform main part, the platform main part include two flotation pontoons 2, four stands 3, deck package, stull, fan transportation deck 10, full slewing crane 9, upper portion multilayer deck living area 11, Sikorsky S92 type helicopter platform, fan base, tie solid winch 6, full slewing propeller 1, DP3 dynamic positioning system. Wherein,

the buoy 2 is positioned at the bottom of the platform main body, and the head end and the tail end adopt streamline design; the two buoys are respectively a buoy 2a and a buoy 2b, and are symmetrically distributed on the left side and the right side of the traveling direction of the platform main body; six propeller cabins, four pump cabins and two pressed water treatment device cabins are arranged in the buoy 2; the inside of the buoy 2 is provided with a front and back through pipe and a channel.

The fan transportation deck 10 is of a truss structure and is positioned above the middle of the buoy 2, so that the height and the gravity center of fan transportation can be reduced, and the stability of the platform during transportation is improved; meanwhile, the truss structure can reduce slamming load under severe sea conditions; the transport deck is respectively connected with the two buoys 2 and the four upright posts 3, so that the fan transport deck 10 is similar to a connecting bridge for connecting the two buoys 2, and the transverse strength and the torsional strength between the two buoys are improved;

the upright posts 3 are 2n, n is more than or equal to 2, and the upright posts are arranged at intervals in pairs along the advancing direction of the platform main body; one upright post 3a of each pair of upright posts 3 is arranged on the buoy 2a, the other upright post 3b is arranged on the buoy 2b, and the upright posts 3a and the upright posts 3b are connected through cross braces; in the attached drawing, four upright columns 3 are arranged, and two upright columns 3 are arranged on each buoy 2 and are in rectangular arrangement; one end of the upright post 3 is connected with the buoy 2, and the other end is connected with the deck bag; thus, it can be said that the deck package is supported above the pontoon 2 by the columns 3; meanwhile, the upright posts 3 are respectively connected into a whole through the fan transport deck 10 and the cross braces, so that the transverse strength and the torsional strength among the upright posts 3 are effectively improved; each upright column 3 is arranged in three layers in height, and each layer of upright column 3 is provided with a ballast tank; and the column 3 has a stairway passage (elevator 5) and an equipment area.

The upper deck bag is arranged in a U shape, the closed end of the U-shaped upper deck bag 4 is positioned at the front end of the platform main body in the advancing direction, and meanwhile, the fan transportation deck 10 is positioned below the U-shaped upper deck bag 4 and is opposite to the inner gap part of the U-shaped deck; therefore, the platform main body of the utility model is convenient for the whole wind driven generator set to be lifted out from the upper part of the inner gap part of the U-shaped upper deck bag 4, and is also convenient for the whole wind driven generator set to be dispatched from the tail part of the U-shaped deck, thereby avoiding the interference between the deck and the fan set; the deck package from top to bottom, include main deck, middle deck, lower deck and deck package under deck in proper order. The deck bottom-covering cabin is provided with a functional liquid cabin; the lower deck is provided with a cabin, a distribution room, an anchor machine room and a living area; while the middle deck lays out the living area.

An upper multi-deck living area 11 is arranged at the closed end of the U-shaped upper deck bag 4, and the bridge deck 7 is installed in the upper multi-deck living area 11; and a ship-to-aircraft stopping position is arranged on the bridge deck 7. The upper multilayer deck living area 11 comprises three layers of decks, namely a deck A, a deck B and a deck C which are sequentially arranged from top to bottom.

The working principle of the utility model is as follows:

when the semi-submersible platform operates on the sea, the semi-submersible platform submerges to the draught of the upright post 3, the waterplane area is reduced, the wave resistance of the platform is improved, and the semi-submersible platform is favorable for severe sea condition operation. The upright columns 3 are connected by cross braces and truss type structures, and a truss type connecting bridge is also used as a fan transportation deck 10, so that the transverse strength is ensured; a truss type transportation platform is arranged above the floating barrel 2, and transportation is arranged above the floating barrel 2, so that the height and the gravity center of fan transportation can be reduced, and the safety of the platform during navigation is improved; an upper deck structure is arranged above the upright post 3, and a large notch is arranged at the tail part and the middle part of the upper deck structure, so that the interference between the upper deck and the loading fan unit is avoided. The platform is provided with a full-rotation crane 9 at the port of the tail part of the upper deck for hoisting wind power equipment. The arm placing frame 8 is positioned on the port of the head part of the upper deck. Four layers of living areas are arranged and are positioned on the starboard of the head part of the upper deck for adjusting the weight and gravity center balance of the empty ship. A Sikorsky S92 type helicopter platform is arranged above the living area and used for offshore personnel to get on and off.

The platform is close to the mooring fan wharf, and the telescopic propeller is recycled into the buoy 2, so that the requirement on the depth of the wharf is reduced. The loading of the fan quay to the platform (or the transport platform to the platform) is realized by the platform self crane 9. The fan loading deck is provided with a base tool for fixing a fan, and a cable rope (a fastening winch 66) for auxiliary fixing is arranged on the deck package main deck. After the fixation is finished, the platform moves out of the berth, the propellers extend out, the two propellers at the tail part are started, and the transportation and navigation are carried out.

Based on foretell semi-submerged formula deep sea wind power mounting platform, the utility model provides a wind generating set's mounting method specifically includes following step: firstly, an integral mechanism of a wind driven generator unit is assembled at a fan dock, then a semi-submersible type deep sea wind power installation platform is adopted to transport a wind driven generator base from the fan dock to a deep sea target position and then hoist the wind driven generator base, and finally, the semi-submersible type deep sea wind power installation platform is adopted to transport the assembled wind driven generator unit from the fan dock to the deep sea target position and hoist the wind driven generator base to the installed wind driven generator base.

Specifically, the specific installation steps of the wind driven generator set comprise:

(1) when the semi-submersible type deep sea wind power installation platform stops at a fan wharf, firstly, a propeller is recycled into a buoy 2, then a crane 9 on the platform is adopted to load a wind driven generator unit on the fan wharf onto a fan transport deck 10, and the wind driven generator unit is fixed through a fixing tool on the fan transport deck 10 and a fixing cable on a deck bag; then moving the semi-submersible type deep sea wind power installation platform out of the berth, extending out of the propellers, starting the two propellers at the tail part, and sailing to a deep sea target position;

(2) when the deep sea target position is reached, determining a positioning mode of the semi-submersible type deep sea wind power installation platform according to the condition and the water depth of a wind power plant at the deep sea target position; after positioning, submerging the semi-submersible type deep-sea wind power installation platform to the operating water depth of 17.5m through ballast water; after submerging, continuously adjusting the positioning precision of the semi-submersible type deep sea wind power installation platform to control the floating state of the ship body; the crane 9 is slowly started, the swing amplitude and the angle of a suspension arm of the crane 9 are adjusted, the suspension arm is adjusted to be above the wind driven generator unit, then the operation of hanging a rigging by a hook is carried out in a tower cylinder of the wind driven generator unit, and after the rigging is finished, the wind driven generator unit is hoisted out of the platform main body and is installed on a pre-installed fan base;

(3) in the hoisting process, the anti-heeling system can finish automatic leveling according to the real-time floating state inclination condition; and (3) after the installation of one wind driven generator unit is finished, returning the suspension arm of the crane 9 to the arm placing frame 8, continuing to go to the next fan base, and repeating the step (2) to install the next wind driven generator unit.

Claims (8)

1. A semi-submersible type deep sea wind power installation platform comprises a platform main body, and is characterized in that the platform main body comprises a buoy, a cross brace, a fan transportation deck, a stand column and an upper deck bag; wherein:

the two buoys are respectively a buoy a and a buoy b and are symmetrically distributed on the left side and the right side of the traveling direction of the platform main body;

the upper deck bag is arranged in a U shape; the closed end of the U-shaped upper deck bag is positioned at the front end of the traveling direction of the platform main body, and two side walls of the U-shaped upper deck bag are respectively supported above the corresponding buoy a and the buoy b through the upright posts;

the number of the upright columns is 2n, n is more than or equal to 2, and the upright columns are arranged at intervals in pairs along the advancing direction of the platform main body; one upright post a of each pair of upright posts is arranged on a buoy a, the other upright post b is arranged on a buoy b, and the upright posts a and the upright posts b are connected through cross braces;

the fan transportation deck is of a truss structure, is positioned below the U-shaped upper deck bag and is opposite to the inner gap part of the U-shaped upper deck bag; the bottom layer of the fan transport deck is respectively fixed with the buoy a and the buoy b, and the side surface of the fan transport deck is fixed with the upright post; and a base tool for fixing the fan is arranged on the fan transportation deck.

2. The semi-submersible deep-sea wind power installation platform of claim 1, wherein the number of the columns is four; one end of each upright post is connected with the buoy, and the other end of each upright post is connected with the upper deck bag; the upright posts are connected into a whole through the fan transportation deck.

3. The semi-submersible deep-sea wind power installation platform according to claim 2, wherein each column is arranged in three levels in height, each level of column being provided with a ballast tank; and the upright post is provided with a stair passage and an equipment area.

4. The semi-submersible deep sea wind power installation platform according to claim 1, wherein the upper deck package comprises, from top to bottom, a main deck, a middle deck, a lower deck, and a deck package bottom compartment.

5. The semi-submersible deep sea wind power installation platform according to claim 4 wherein the deck bottom bay has a functional liquid bay; the lower deck is provided with a cabin, a distribution room, an anchor machine room and a living area; while the middle deck lays out the living area.

6. The semi-submersible deep sea wind power installation platform of claim 1, wherein a crane is equipped at the left string tail of the upper deck package, and a boom support for horizontally placing a boom of the crane is provided at the front end in the traveling direction of the platform body.

7. The semi-submersible deep sea wind power installation platform of claim 1, wherein the closed end of the U-shaped upper deck package installs a bridge deck through an upper multi-deck living area; and a ship bridge deck is provided with a ship aircraft stopping position.

8. The semi-submersible deep sea wind power installation platform according to claim 7, wherein the upper multi-deck living area comprises three decks, namely a deck A, a deck B and a deck C, which are sequentially arranged from top to bottom.