CN216518407U

CN216518407U - Offshore booster station sharing foundation with offshore wind driven generator

Info

Publication number: CN216518407U
Application number: CN202122982406.2U
Authority: CN
Inventors: 俞华锋; 汤群益; 陶安; 吕国儿; 王永发
Original assignee: PowerChina Huadong Engineering Corp Ltd
Current assignee: PowerChina Huadong Engineering Corp Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-05-13
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses an offshore booster station sharing a foundation with an offshore wind driven generator, and aims to overcome the defect that an offshore booster station which is independently arranged in the prior art is high in cost. And the problems of large gravity load eccentricity, difficult installation and the like are solved. The structure of the jacket comprises a jacket foundation, overhanging type platforms, low-voltage modules and high-voltage modules, wherein a transition section for mounting the wind driven generator is arranged in the middle of the top end of the jacket foundation, the overhanging type platforms are respectively arranged on two sides of the transition section on the top end of the jacket foundation, and the two overhanging type platforms are respectively provided with the low-voltage modules and the high-voltage modules.

Description

Offshore booster station sharing foundation with offshore wind driven generator

Technical Field

The utility model relates to an offshore booster station sharing a foundation with an offshore wind driven generator, which is suitable for the field of offshore wind power generation.

Background

Energy is the basis of the development of human society, and the nature and the mode of the development of human society are determined by the updating of energy technology and the change of energy types. Since the 20 th century, the widespread use of chemical fuels, represented by coal and petroleum, has led to a tremendous increase and development in human productivity on the one hand; on the other hand, the consumption of carbon dioxide and harmful gases emitted from chemical fuels poses serious environmental problems, posing threats to the development of human society and the safety of the earth. Reducing the emission of greenhouse gases and avoiding the deterioration of environmental problems become important targets of energy industry. Therefore, scientists in various countries are looking for and researching renewable energy sources to solve the problems of the sustainable development of human society at present. The wind power generation is used as clean renewable energy, has remarkable social and environmental benefits, and has important significance for promoting the development of renewable energy in China.

Offshore wind power generation is a new industry, and China gradually develops the offshore wind power generation industry after 2007. The offshore booster station is an offshore wind farm boosting, power distribution and control center. The offshore booster station is generally internally provided with various electrical equipment such as a main transformer, a high-low voltage power distribution cabinet, a GIS (geographic information system), communication relay protection equipment and the like, and can be used for collecting power generated by all offshore wind turbine generators, boosting the power through the main transformer and then transmitting the power to the land through a high-voltage sea cable.

The existing offshore wind power project is often provided with one or even a plurality of offshore booster stations, and the foundation and the wind turbine foundation are often arranged separately. Due to the importance of the booster station, the construction cost, the transportation lifting cost and other construction costs are high, and the progress of part of projects is influenced by the construction ship machine.

Aiming at the defect that the traditional offshore booster station which is independently arranged has high manufacturing cost, one solution is to combine the offshore booster station with an offshore wind turbine generator and arrange the offshore booster station on the basis of the offshore wind turbine generator. However, such an improvement has problems such as an increase in the size of the upper part of the foundation, an increase in the load, a large gravity load eccentricity, an upper module-to-module connection, a module-to-jacket connection, and an oversize of the foundation plane of the jacket. The problems to be solved include: (1) the upper module has large plane size, large load and large gravity load eccentricity; (2) problems of traffic and pipeline connections between upper modules; (3) problems of positioning and connection between the upper module and the jacket foundation; (4) the problem of oversize of the basic plane of the jacket.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that an offshore booster station which is independently arranged in the prior art is high in cost, and the offshore booster station and an offshore wind turbine generator set are combined to solve the problems to be solved urgently. And the problems of large gravity load eccentricity, difficult installation and the like are solved.

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

the offshore booster station sharing the foundation with the offshore wind driven generator comprises a jacket foundation, overhanging type platforms, low-voltage modules and high-voltage modules, wherein a transition section for mounting the wind driven generator is arranged in the middle of the top end of the jacket foundation, the overhanging type platforms are respectively arranged on two sides of the transition section at the top end of the jacket foundation, and the low-voltage modules and the high-voltage modules are respectively arranged on the two overhanging type platforms.

Preferably, the low-voltage module is of a three-layer arrangement structure, one layer is provided with a cable layer, the second layer is provided with a 35kV switch cabinet, a station transformer substation, a ventilation machine room and a fire pump room, and the third layer is provided with a diesel generator, a storage battery, a field distribution room and a central control relay protection room.

Preferably, the high-voltage module is of a three-layer arrangement structure, one layer is provided with a cable layer, the second layer is provided with a main transformer and a high-voltage switch GIS, and the third layer is provided with a ventilator room.

Preferably, a connecting module is arranged on one side of the transition section between the low-voltage module and the high-voltage module, the connecting module is provided with a three-layer structure communicated with the three-layer structures of the high-voltage module and the low-voltage module, and a pedestrian passage, a cable passage, a fire pipeline passage and the like are arranged in the connecting module.

Preferably, the cantilever platform adopts a triangular truss structure, the main rod of the jacket foundation is used as a vertical rod of the triangular truss structure of the cantilever platform, the horizontal rod of the triangular truss structure adopts H-shaped steel, and the inclined rod of the triangular truss structure adopts steel pipes.

As preferred, all set up connected node in the crossing department of montant top, down tube and the horizontal pole of the triangle truss structure of encorbelmenting formula platform outward, be equipped with the reverse point of inserting of direction up at connected node top, reverse bottom of inserting the point is equipped with horizontal ring board, low pressure module and high pressure module bottom are equipped with the module post, module post bottom is pegged graft reverse point of inserting and with horizontal ring board welded connection.

Therefore, the utility model has the following beneficial effects:

(1) by adopting a double-module symmetrical arrangement technology, the two modules can realize relatively independent functions, and the two modules can realize complete functions of the offshore booster station after being combined. The two modules are similar in size and weight, and platform eccentricity is reduced.

(2) The size and weight of the single module are reduced by adopting simplified wiring technology. After the weight is reduced, the hoisting weight of the single module is reduced, the hoisting difficulty is reduced, and the module can be hoisted by using an installation ship of a wind turbine generator, so that the cost of a large-scale crane ship is saved.

(3) A connecting module is arranged between the low-voltage module and the high-voltage module, and the connecting module is used as a cable and pipeline channel between the two modules and also used as a traffic channel between the two modules, so that the connection between the modules is facilitated.

(4) And the reverse insertion and the forward welding are adopted, so that the construction is convenient. When the upper module is installed, the upper module column is guided to enter the insertion tip, so that the upper module column can be conveniently and accurately aligned and positioned. And then the column is welded with the horizontal ring plate, the welding direction is forward welding, the welding construction is convenient, and the welding quality is ensured.

(5) Adopt the overhanging jacket basis of top enlargement, make jacket foundation structure reasonable, the atress is clear and definite, the booster station is as the counter weight of fan simultaneously, is favorable to its shock attenuation, and booster station basis and aerogenerator basis are effectively unified to be a basis, have saved the cost.

Drawings

FIG. 1 is an elevation view of an offshore booster station of the present invention sharing a foundation with an offshore wind turbine.

FIG. 2 is a plan view of a layer of an offshore booster station of the present invention sharing a foundation with an offshore wind turbine.

FIG. 3 is a two-level plan view of an offshore booster station of the present invention sharing a foundation with an offshore wind turbine.

FIG. 4 is a three-level plan view of an offshore booster station of the present invention sharing a foundation with an offshore wind turbine.

Fig. 5 is a schematic view of a modular column to jacket connection of the present invention.

The figure is marked with:

1. a low voltage module; 2. a high voltage module; 3. a station use transformer; 4. a main transformer; 5. a high voltage switch; 6. a connection module; 7. a jacket foundation; 8. reversely inserting the tip; 9. a horizontal ring plate; 10. a transition section; 11. an overhanging platform; 1101. a horizontal bar; 1102. a diagonal bar; 12. and (4) a module column.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

As shown in fig. 1, the offshore booster station sharing a foundation with an offshore wind turbine according to the present invention includes a jacket foundation 7, overhanging platforms 11, low-voltage modules 1 and high-voltage modules 2, wherein a transition section 10 for installing the wind turbine is disposed in the middle of the top end of the jacket foundation 7, the overhanging platforms 11 are disposed on two sides of the transition section 10 at the top end of the jacket foundation 7, and the low-voltage modules 1 and the high-voltage modules 2 are disposed on the two overhanging platforms 11, respectively.

As shown in fig. 2, 3 and 4, the low-voltage module 1 is of a three-layer arrangement structure, one layer is provided with a cable layer, the other layer is provided with a 35kV switch cabinet, a station transformer, a ventilation machine room and a fire pump room, and the third layer is provided with a diesel generator, a storage battery, a field distribution room and a central control relay protection room. The high-voltage module 2 is of a three-layer arrangement structure, wherein one layer is provided with a cable layer, the other layer is provided with a main transformer 4 and a high-voltage switch 5GIS, and the third layer is provided with a ventilator room.

Be provided with linking module 6 in changeover portion 10 one side between low pressure module 1 and the high pressure module 2, linking module 6 is equipped with the three layer construction who communicates each other with the three layer construction of high, low pressure module 1, set up pedestrian's passageway, cable channel and fire control pipeline passageway etc. in linking module 6.

The low-voltage module 1 adopts single bus wiring, only one section of bus and one station transformer 3 are arranged, the equipment of the low-voltage module 1 is simplified, and the weight of the low-voltage module 1 is reduced; the high-voltage module 2 adopts a main transformer 4 and a line-to-line connection mode, so that the high-voltage switch 5 has only one interval, the equipment of the high-voltage module 2 is simplified, and the weight of the high-voltage module 2 is reduced.

As shown in fig. 1 and 5, the overhanging platform 11 is in a form of a triangular truss structure, the main rod of the jacket foundation 7 is used as a vertical rod of the triangular truss structure of the overhanging platform 11, the horizontal rod 1101 of the triangular truss structure is made of H-shaped steel, and the inclined rod 1102 of the triangular truss structure is made of steel pipe.

The intersection of the top of the vertical rod of the triangular truss structure of the outward-overhanging type platform 11, the inclined rod 1102 and the horizontal rod 1101 is provided with a connecting node, the top of the connecting node is provided with a reverse insertion point 8 with the upward direction, the bottom of the reverse insertion point 8 is provided with a horizontal ring plate 9, the bottoms of the low-voltage module 1 and the high-voltage module 2 are provided with a module column 12, the bottom end of the module column 12 is inserted in the reverse insertion point 8 and is connected with the horizontal ring plate 9 in a welded mode.

And the reverse insertion tip 8 and the forward welding connection technology are adopted, so that the construction is convenient. The upper module posts 12 are guided into the prongs for convenient and accurate alignment and positioning during installation of the upper module. Then the column is welded with the horizontal ring plate 9, the welding direction is forward welding, welding construction is convenient, and welding quality is guaranteed.

The utility model adopts a double-module symmetrical arrangement technology, the two modules can realize relatively independent functions, and the two modules can realize complete functions of the offshore booster station after being combined. The two modules are similar in size and weight, and platform eccentricity is reduced. A connecting module 6 is arranged between the low-voltage module 1 and the high-voltage module 2, and the connecting module 6 is used as a cable and pipeline channel between the two modules and also used as a traffic channel between the two modules, so that the connection between the modules is facilitated.

The size and weight of the single module are reduced by adopting simplified wiring technology. After the weight is reduced, the hoisting weight of the single module is reduced, the hoisting difficulty is reduced, the module can be hoisted by using an installation ship of a wind turbine generator, and the cost of a large-scale crane ship is saved.

Adopt the overhanging type jacket basis 7 that the top enlarges, make jacket basis 7 rational in infrastructure, the atress clear and definite, the booster station is as the counter weight of fan simultaneously, is favorable to its shock attenuation, and booster station basis and aerogenerator basis are effectively unified to be a basis, have saved the cost.

Claims

1. The utility model provides a with marine wind power generation machine sharing basic offshore booster station, characterized by, includes jacket basis, chooses formula platform, low pressure module and high-pressure module outward, the platform sets up the changeover portion of installation aerogenerator in the middle part on jacket basis top, and jacket basis top respectively is equipped with chooses formula platform outward in changeover portion both sides, two choose formula platforms outward and set up low pressure module and high-pressure module respectively.

2. The offshore booster station sharing the foundation with the offshore wind turbine as claimed in claim 1, wherein the low voltage module is of a three-layer arrangement structure, one layer is provided with a cable layer, the second layer is provided with a 35kV switch cabinet, a station transformer, a ventilation machine room and a fire pump room, and the third layer is provided with a diesel generator, a storage battery, a field power distribution room and a central control relay protection room.

3. The offshore booster station sharing the foundation with the offshore wind turbine as claimed in claim 2, wherein the high voltage module is of a three-layer arrangement structure, one layer is provided with a cable layer, the other layer is provided with a main transformer and a high voltage switch GIS, and the third layer is provided with a ventilator room.

4. The offshore booster station sharing the foundation with the offshore wind turbine as claimed in claim 3, wherein a connection module is arranged between the low voltage module and the high voltage module at one side of the transition section, the connection module is provided with a three-layer structure which is communicated with the three-layer structure of the high voltage module and the low voltage module, and a pedestrian passage, a cable passage and a fire fighting pipeline passage are arranged in the connection module.

5. The offshore booster station with a foundation shared by offshore wind turbines as claimed in claim 1, wherein the cantilever platform is in a triangular truss structure, the main rod of the jacket foundation is used as a vertical rod of the triangular truss structure of the cantilever platform, the horizontal rod of the triangular truss structure is made of H-shaped steel, and the diagonal rod of the triangular truss structure is made of steel pipe.

6. The offshore booster station sharing the foundation with the offshore wind turbine as claimed in claim 5, wherein the top of the vertical rod of the triangular truss structure of the overhanging platform and the intersection of the diagonal rod and the horizontal rod are provided with connecting nodes, the top of each connecting node is provided with a reverse insertion tip which is upward, the bottom of each reverse insertion tip is provided with a horizontal ring plate, the bottom of each low-voltage module and the bottom of each high-voltage module are provided with module columns, and the bottom ends of the module columns are inserted with the reverse insertion tips and are connected with the horizontal ring plates in a welding mode.