Prefabricated cabin type module integrated offshore booster station and construction method thereof

Abstract

The invention relates to the technical field of offshore booster stations, and provides a prefabricated cabin type module integrated offshore booster station and a construction method thereof. The first-layer platform (2) is supported above the jacket (1); the second-layer platform (3) is supported above the first-layer platform (2); the infrastructure prefabricated cabin module is integrated with an offshore booster station infrastructure and is arranged on the first-layer platform (2); and the electrical equipment prefabricated cabin module is integrated with offshore booster station electrical equipment and is arranged on the two-layer platform (3). The first-layer platform, the second-layer platform, the infrastructure prefabricated cabin module and the electrical equipment prefabricated cabin module can be prefabricated in a factory at the same time and transported and assembled separately, so that the construction efficiency is effectively improved, the construction difficulty is effectively reduced, a laminated layout can be formed, and the construction cost is reduced. Therefore, auxiliary facilities, electrical equipment and the like can be compactly arranged, the occupied area is reduced, the overall weight is reduced, and the layout and the overall structure are more reasonable.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore booster stations, and in particular to an offshore booster station integrated with prefabricated cabin-type modules and a construction method thereof. Background Art

[0002] The offshore booster station is the central hub of an offshore wind farm. It is responsible for collecting and boosting electric energy, and is also a vital part of the construction of an offshore wind farm. As the capacity of the booster station increases and the distance from the shore increases, the construction cost and implementation cycle of the offshore booster station also gradually increase. Due to the scarcity of large lifting vessels and machinery, the waiting period for the lifting of the upper modules of large offshore booster stations is very long, and the construction and maintenance costs are high.

[0003] Traditional offshore booster stations have many devices and occupy a large area, which leads to heavy weight and high cost of the upper modules of the booster station. The electrical equipment in the electrical equipment room is not compact enough and the stacked layout is not adopted. Moreover, the construction of traditional offshore booster stations is complicated, difficult, and inefficient, and the cost of construction, construction and maintenance is high. Summary of the invention

[0004] The object of the present invention is to solve at least one technical problem in the background technology and to provide an offshore booster station integrated with prefabricated cabin-type modules and a construction method thereof.

[0005] To achieve the above object, the present invention provides an offshore booster station integrated with prefabricated cabin-type modules, comprising:

[0006] catheter rack;

[0007] a platform supported above the conductor frame;

[0008] A second-tier platform supported above the first-tier platform;

[0009] The infrastructure prefabricated cabin module integrates the offshore booster station infrastructure and is arranged on the first-layer platform;

[0010] The electrical equipment prefabricated cabin module integrates the electrical equipment of the offshore booster station and is arranged on the second-floor platform.

[0011] According to one aspect of the present invention, the first-layer platform and the second-layer platform are made of metal material, the first-layer platform is supported on the conductor frame, and the second-layer platform is welded to the first-layer platform through a support beam;

[0012] A connecting staircase is provided between the first-floor platform and the second-floor platform.

[0013] According to one aspect of the present invention, a prefabricated cabin hoisting passage is provided on the first-layer platform, and a hoisting track and a pulley and a hoisting rope arranged on the hoisting track are provided on the bottom surface of the second-layer platform.

[0014] According to one aspect of the present invention, a top crane is provided on the second-floor platform.

[0015] According to one aspect of the present invention, the infrastructure prefabricated cabin module includes: an accident oil pool prefabricated cabin, a first temporary rest prefabricated cabin, a second temporary rest prefabricated cabin and an auxiliary equipment prefabricated cabin.

[0016] According to one aspect of the present invention, the electrical equipment prefabricated cabin module includes: a first switch relay protection prefabricated cabin, a second switch relay protection prefabricated cabin, a first main transformer prefabricated cabin, a second main transformer prefabricated cabin, a battery prefabricated cabin, a grounding transformer prefabricated cabin, a diesel generator prefabricated cabin and an emergency power distribution prefabricated cabin;

[0017] The first switch relay protection prefabricated cabin and the second switch relay protection prefabricated cabin are arranged at intervals on both sides of one direction of the second-floor platform;

[0018] The battery prefabricated cabin and the grounding transformer prefabricated cabin are arranged adjacent to each other and are located on one side of the second-floor platform in another direction; the diesel generator prefabricated cabin and the emergency power distribution prefabricated cabin are arranged adjacent to each other and are located on the other side of the second-floor platform in another direction;

[0019] The first main transformer prefabricated cabin and the second main transformer prefabricated cabin are arranged adjacent to each other and are set in the middle of the second-floor platform.

[0020] According to one aspect of the present invention, the first switch relay protection prefabricated cabin and the second switch relay protection prefabricated cabin are double-layer prefabricated cabin structures, wherein the lower layer is installed with GIS combination electrical appliances and switch cabinets, and the upper layer is installed with relay protection equipment and power distribution equipment.

[0021] According to one aspect of the present invention, an inspection passage is reserved between each prefabricated cabin in the electrical equipment prefabricated cabin module, and each prefabricated cabin is equipped with a fire protection, temperature control and dehumidification system.

[0022] According to one aspect of the present invention, it also includes: a wiring channel connecting the first-layer platform and the second-layer platform. After the optical cables of the electrical equipment are connected, they are uniformly collected through the wiring channel to the import and export submarine cables to the onshore centralized control station.

[0023] Furthermore, to achieve the above-mentioned purpose, the present invention also provides a method for constructing an offshore booster station integrated with prefabricated cabin-type modules, comprising:

[0024] Prefabricate the first-floor platform, second-floor platform, infrastructure prefabricated cabin modules and electrical equipment prefabricated cabin modules, and configure fire protection, temperature control and dehumidification systems in each prefabricated cabin of the electrical equipment prefabricated cabin modules;

[0025] The conductor frame is hoisted into place by sea, and then the first-level platform and the second-level platform are hoisted and installed in place by sea, and the infrastructure prefabricated cabin modules and electrical equipment prefabricated cabin modules are independently transported to the booster station;

[0026] Lift the infrastructure prefabricated cabin module to the predetermined position on the first-floor platform;

[0027] Hoist the electrical equipment prefabricated cabin module to the predetermined position on the second-floor platform;

[0028] The prefabricated cabins in the electrical equipment prefabricated cabin module are electrically connected through prefabricated cables, and joint debugging is carried out to complete the construction.

[0029] According to one solution of the present invention, the offshore booster station integrated with prefabricated cabin modules includes: a conductor frame; a first-layer platform supported on the conductor frame; a second-layer platform supported on the first-layer platform; an infrastructure prefabricated cabin module integrating the offshore booster station infrastructure and arranged on the first-layer platform; and an electrical equipment prefabricated cabin module integrating the electrical equipment of the offshore booster station and arranged on the second-layer platform. With such an arrangement, the first-layer platform, the second-layer platform, the infrastructure prefabricated cabin module and the electrical equipment prefabricated cabin module can be prefabricated in the factory at the same time and transported and assembled separately, so that the efficiency of construction is effectively improved, the difficulty of construction is effectively reduced, and a stacked layout can be formed, so that auxiliary facilities and electrical equipment can be compactly arranged, the floor space is reduced, the overall weight is reduced, and the layout and overall structure are more reasonable.

[0030] According to one solution of the present invention, the first-layer platform and the second-layer platform are made of metal materials. After the first-layer platform and the second-layer platform are prefabricated, the first-layer platform is supported on the conductor frame, and then the second-layer platform is welded to the first-layer platform through a support beam; a connecting staircase is provided between the first-layer platform and the second-layer platform. With such an arrangement, the first-layer platform and the second-layer platform can be prefabricated in the factory at the same time, and then quickly installed and fixed by welding, which effectively improves the construction efficiency, increases the layout space of the booster station, and makes the spatial structure layout more reasonable.

[0031] According to one solution of the present invention, a prefabricated cabin hoisting channel is provided on the first-layer platform, and a hoisting track and a pulley and a hoisting rope arranged on the hoisting track are provided on the bottom surface of the second-layer platform. In this way, the infrastructure transported on the transport ship or the infrastructure on the first-layer platform can be hoisted and transported through the hoisting channel through the hoisting track and the pulley and hoisting rope arranged on the bottom surface of the second-layer platform, so as to realize rapid hoisting, installation or disassembly.

[0032] According to one solution of the present invention, a top crane is provided on the second-layer platform, so that the electrical equipment transported on the transport ship or the electrical equipment on the second-layer platform can be hoisted and transported by the top crane, so as to realize rapid hoisting, installation or disassembly.

[0033] According to one solution of the present invention, the infrastructure prefabricated cabin module includes: an accident oil pool prefabricated cabin, a first temporary rest prefabricated cabin, a second temporary rest prefabricated cabin and an auxiliary equipment prefabricated cabin. With this arrangement, the infrastructure can be loaded through a layer of platform to ensure the basic operation and maintenance of the offshore booster station and provide basic guarantee for the operation of the offshore booster station.

[0034] According to one solution of the present invention, the electrical equipment prefabricated cabin module includes: a first switch relay protection prefabricated cabin, a second switch relay protection prefabricated cabin, a first main transformer prefabricated cabin, a second main transformer prefabricated cabin, a battery prefabricated cabin, a grounding transformer prefabricated cabin, a diesel generator prefabricated cabin and an emergency power distribution prefabricated cabin; the first switch relay protection prefabricated cabin and the second switch relay protection prefabricated cabin are arranged at intervals on both sides of one direction of the second-floor platform; the battery prefabricated cabin and the grounding transformer prefabricated cabin are arranged adjacent to each other and are located on one side of the second-floor platform in another direction, and the diesel generator prefabricated cabin and the emergency power distribution prefabricated cabin are arranged adjacent to each other and are located on the other side of the second-floor platform in another direction; the first main transformer prefabricated cabin and the second main transformer prefabricated cabin are arranged adjacent to each other and are set in the middle of the second-floor platform. Such an arrangement can make the layout of the prefabricated cabins of various electrical equipment on the second-floor platform reasonable and compact, effectively save the space occupied by the electrical equipment, effectively reduce the volume and weight of the upper structure of the booster station, ensure the overall structural strength and rationality, and reduce the difficulty of construction.

[0035] According to one solution of the present invention, the first switch relay protection prefabricated cabin and the second switch relay protection prefabricated cabin are double-layer prefabricated cabin structures, wherein the lower layer is equipped with GIS combination electrical appliances and switch cabinets, and the upper layer is equipped with relay protection equipment and power distribution equipment. Such an arrangement can save equipment floor space through a stacked layout, effectively reduce the area and material weight of the booster station platform, and reduce costs.

[0036] According to one solution of the present invention, an inspection channel is provided between each prefabricated cabin in the electrical equipment prefabricated cabin module, and each prefabricated cabin is equipped with a fire protection, temperature control and dehumidification system. This arrangement can make the layout of each prefabricated cabin equipment on the second-floor platform compact, with an inspection channel provided between the equipment, and a fire protection, temperature control and dehumidification system provided inside the prefabricated cabin carrying the electrical equipment, effectively coping with the high salt fog and high humidity environment at sea.

[0037] According to one solution of the present invention, the present invention further includes: a wiring channel connecting the first-layer platform and the second-layer platform, after the optical cables of the electrical equipment are connected, they are uniformly collected through the wiring channel to the import and export submarine cables to the land centralized control station. In this way, the cables of the electrical equipment can be collected through the wiring channel, so that the cables are arranged in an orderly and reasonable manner, and the overall safety of the booster station is improved.

[0038] According to the solution of the present invention, the present invention can solve the problems of heavy weight of offshore booster station modules, large tonnage of lifting vessels required for loading and unloading of the overall lifting, long construction period and high construction cost. A prefabricated cabin modular form is adopted to carry electrical equipment, optimize the equipment layout of the upper modules of the offshore booster station, and design multi-layer prefabricated cabins at the electrical equipment layer to load electrical equipment, so that the spatial layout of the offshore booster station is compact and lightweight. These modular electrical units can complete the integration and debugging of electrical equipment in the factory, and can be transported separately to the booster station platform, quickly installed in place, and convenient for replacement and maintenance. The main construction of the booster station and the integration of the prefabricated cabin modules of electrical equipment are carried out simultaneously, which shortens the construction time of the entire booster station and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A top perspective view schematically showing a prefabricated cabin-type module-integrated offshore booster station according to an embodiment of the present invention;

[0040] Figure 2 A bottom perspective view schematically showing a prefabricated cabin-type module-integrated offshore booster station according to an embodiment of the present invention;

[0041] Figure 3 A schematic diagram showing the structural arrangement of a prefabricated cabin module for infrastructure on a first-tier platform according to an embodiment of the present invention;

[0042] Figure 4 The structural arrangement diagram of the first switch relay protection prefabricated cabin and the second switch relay protection prefabricated cabin according to an embodiment of the present invention is schematically shown. DETAILED DESCRIPTION

[0043] The present invention will now be discussed with reference to exemplary embodiments. It should be understood that the embodiments discussed are only to enable those skilled in the art to better understand and thus implement the present invention, rather than implying any limitation on the scope of the present invention.

[0044] As used herein, the term “including” and variations thereof are to be interpreted as open-ended terms meaning “including, but not limited to.” The term “based on” is to be interpreted as “based, at least in part, on.” The terms “one embodiment” and “an embodiment” are to be interpreted as “at least one embodiment.”

[0045] Figure 1 The following is a schematic top view of a prefabricated cabin-type module integrated offshore booster station according to an embodiment of the present invention. Figure 1 As shown, in this embodiment, the prefabricated cabin-type module integrated offshore booster station includes:

[0046] Pipe frame 1;

[0047] A platform 2 is supported above the conductor frame 1;

[0048] The second-floor platform 3 is supported on the first-floor platform 2;

[0049] The infrastructure prefabricated cabin module integrates the offshore booster station infrastructure and is set on the first-floor platform 2;

[0050] The electrical equipment prefabricated cabin module integrates the electrical equipment of the offshore booster station and is arranged on the second-floor platform 3. Such an arrangement enables the first-floor platform 2, the second-floor platform 3, the infrastructure prefabricated cabin module and the electrical equipment prefabricated cabin module to be prefabricated in the factory at the same time and transported and assembled separately, so that the efficiency of construction is effectively improved, the difficulty of construction is effectively reduced, and a stacked layout can be formed, so that auxiliary facilities and electrical equipment can be compactly arranged, the floor space is reduced, the overall weight is reduced, and the layout and overall structure are more reasonable.

[0051] Furthermore, in this embodiment, the first-layer platform 2 and the second-layer platform 3 are made of metal material. After the first-layer platform 2 and the second-layer platform 3 are prefabricated, the first-layer platform 2 is supported on the conductor frame 1, and then the second-layer platform 3 is welded to the first-layer platform 2 through the support beam 4;

[0052] A connecting staircase is provided between the first floor platform 2 and the second floor platform 3. With such a configuration, the first floor platform 2 and the second floor platform 3 can be prefabricated in the factory at the same time, and then quickly installed and fixed by welding, which effectively improves the construction efficiency, increases the layout space of the booster station, and makes the spatial structure layout more reasonable.

[0053] Further, Figure 2 The following is a schematic bottom-up perspective view of a prefabricated cabin-type module integrated offshore booster station according to an embodiment of the present invention. Figure 2 As shown, in this embodiment, a prefabricated cabin hoisting passage 5 is provided on the first-layer platform 2, and a hoisting track 6 and a pulley 7 and a hoisting rope 8 are provided on the bottom surface of the second-layer platform 3. In this way, the infrastructure transported on the transport ship or the infrastructure on the first-layer platform 2 can be hoisted and transported through the hoisting passage 5 through the hoisting track 6 and the pulley 7 and the hoisting rope 8 provided on the bottom surface of the second-layer platform 3, so as to realize rapid hoisting installation or disassembly.

[0054] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, a top crane 9 is provided on the second-layer platform 3. With such a configuration, the electrical equipment transported on the transport ship or the electrical equipment on the second-layer platform 3 can be hoisted and transported by the top crane 9, so as to realize rapid hoisting installation or disassembly.

[0055] Further, Figure 3 The schematic diagram shows the structural layout of the prefabricated cabin modules of the infrastructure on a first-layer platform according to one embodiment of the present invention. Figure 3 As shown, in this embodiment, the infrastructure prefabricated cabin module includes: an accident oil pool prefabricated cabin 10, a first temporary rest prefabricated cabin 11, a second temporary rest prefabricated cabin 12 and an auxiliary equipment prefabricated cabin 13 (the auxiliary equipment prefabricated cabin is a spare parts cabin and / or a tool cabin, and spare parts refer to spare parts, equipment and equipment, which are used to replace the original equipment when it fails or is damaged). Such a setting can make it possible to load the infrastructure through a first-layer platform 2, ensure the basic operation and maintenance of the offshore booster station, and provide basic guarantee for the operation of the offshore booster station.

[0056] Furthermore, if Figure 1 As shown, in this embodiment, the electrical equipment prefabricated cabin module includes: a first switch relay protection prefabricated cabin 14, a second switch relay protection prefabricated cabin 15, a first main transformer prefabricated cabin 16, a second main transformer prefabricated cabin 17, a battery prefabricated cabin 18, a grounding transformer prefabricated cabin 19, a diesel generator prefabricated cabin 20 and an emergency power distribution prefabricated cabin 21;

[0057] The first switch relay protection prefabricated cabin 14 and the second switch relay protection prefabricated cabin 15 are arranged at intervals on both sides of the second-floor platform 3 in one direction (front and back in the figure);

[0058] The battery prefabricated cabin 18 and the grounding transformer prefabricated cabin 19 are arranged adjacent to each other and are located on one side of the second-floor platform 3 in another direction (left-right direction in the figure), and the diesel generator prefabricated cabin 20 and the emergency power distribution prefabricated cabin 21 are arranged adjacent to each other and are located on the other side of the second-floor platform 3 in another direction;

[0059] The first main transformer prefabricated cabin 16 and the second main transformer prefabricated cabin 17 are arranged adjacent to each other and are set in the middle of the second-floor platform 3. Such an arrangement can make the layout of the prefabricated cabins of various electrical equipment on the second-floor platform 3 reasonable and compact, effectively save the space occupied by the electrical equipment, effectively reduce the volume and weight of the upper structure of the booster station, ensure the overall structural strength and rationality, and reduce the difficulty of construction.

[0060] Further, Figure 4 The structural arrangement diagram of the first switch relay protection prefabricated cabin and the second switch relay protection prefabricated cabin according to an embodiment of the present invention is schematically shown. Figure 4As shown, in this embodiment, the first switch relay protection prefabricated cabin 14 and the second switch relay protection prefabricated cabin 15 are double-layer prefabricated cabin structures, wherein the lower layer is equipped with GIS combination electrical appliances and switch cabinets 23, and the upper layer is equipped with relay protection equipment and power distribution equipment 24. Such an arrangement can save equipment floor space through a stacked layout, effectively reduce the area and material weight of the booster station platform, and reduce costs.

[0061] Furthermore, in this embodiment, an inspection passage is left between each prefabricated cabin in the electrical equipment prefabricated cabin module, and each prefabricated cabin is equipped with a fire protection, temperature control and dehumidification system. This arrangement can make the layout of each prefabricated cabin equipment on the second-floor platform 3 compact, with an inspection passage left between the equipment, and a fire protection, temperature control and dehumidification system inside the prefabricated cabin loaded with electrical equipment, effectively coping with the high salt fog and high humidity environment at sea.

[0062] Furthermore, if Figure 3 As shown, in this embodiment, the present invention further includes: a wiring channel 22 connecting the first-layer platform 2 and the second-layer platform 3. After the optical cables of the electrical equipment are connected, they are uniformly collected to the import and export submarine cables to the land centralized control station through the wiring channel 22. In this way, the cables of the electrical equipment can be collected through the wiring channel 22, so that the cables are arranged in an orderly and reasonable manner, thereby improving the overall safety of the booster station.

[0063] Furthermore, to achieve the above-mentioned purpose, the present invention also provides a method for constructing an offshore booster station integrated with prefabricated cabin-type modules, comprising:

[0064] Prefabricate the first-floor platform, second-floor platform, infrastructure prefabricated cabin modules and electrical equipment prefabricated cabin modules, and configure fire protection, temperature control and dehumidification systems in each prefabricated cabin of the electrical equipment prefabricated cabin modules;

[0065] The conductor frame is hoisted into place by sea, and then the first-level platform and the second-level platform are hoisted and installed in place by sea, and the infrastructure prefabricated cabin modules and electrical equipment prefabricated cabin modules are independently transported to the booster station;

[0066] Lift the infrastructure prefabricated cabin module to the predetermined position on the first-floor platform;

[0067] Hoist the electrical equipment prefabricated cabin module to the predetermined position on the second-floor platform;

[0068] The prefabricated cabins in the electrical equipment prefabricated cabin module are electrically connected through prefabricated cables, and joint debugging is carried out to complete the construction.

[0069] According to the above scheme of the present invention, the present invention can solve the problems of heavy weight of offshore booster station modules, large tonnage of lifting vessels required for loading and unloading of the overall lifting, long construction period and high construction cost. A prefabricated cabin modular form is adopted to carry electrical equipment, optimize the layout of the upper module equipment of the offshore booster station, and design multi-layer prefabricated cabins at the electrical equipment layer to load electrical equipment, so that the spatial layout of the offshore booster station is compact and lightweight. These modular electrical units can complete the integration and debugging of electrical equipment in the factory, and can be transported separately to the booster station platform, quickly installed in place, and convenient for replacement and maintenance. The main construction of the booster station and the integration of the prefabricated cabin modules of electrical equipment are carried out simultaneously, which shortens the construction time of the entire booster station and improves construction efficiency.

[0070] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. The offshore booster station integrated with prefabricated cabin modules is characterized by: include: A catheter frame (1); A platform (2) supported above the catheter frame (1); A second-layer platform (3) supported above the first-layer platform (2); An infrastructure prefabricated cabin module, integrating the offshore booster station infrastructure, is arranged on the first-layer platform (2); The electrical equipment prefabricated cabin module integrates the electrical equipment of the offshore booster station and is arranged on the second-floor platform (3).

2. The prefabricated cabin-type module integrated offshore booster station according to claim 1, characterized in that: The first-layer platform (2) and the second-layer platform (3) are made of metal material; the first-layer platform (2) is supported on the conductor frame (1); and the second-layer platform (3) is welded to the first-layer platform (2) via a support beam (4); A connecting staircase is provided between the first-floor platform (2) and the second-floor platform (3).

3. The prefabricated cabin-type module integrated offshore booster station according to claim 1, characterized in that: The first-layer platform (2) is provided with a prefabricated cabin hoisting channel (5), and the bottom surface of the second-layer platform (3) is provided with a hoisting track (6) and a pulley (7) and a hoisting rope (8) arranged on the hoisting track (6).

4. The prefabricated cabin-type module integrated offshore booster station according to claim 1, characterized in that: The second-floor platform (3) is provided with a top crane (9).

5. The prefabricated cabin-type module integrated offshore booster station according to claim 1, characterized in that: The infrastructure prefabricated cabin module comprises: an accident oil pool prefabricated cabin (10), a first temporary rest prefabricated cabin (11), a second temporary rest prefabricated cabin (12) and an auxiliary equipment prefabricated cabin (13).

6. The prefabricated cabin-type module integrated offshore booster station according to claim 1, characterized in that: The electrical equipment prefabricated cabin module comprises: a first switch relay protection prefabricated cabin (14), a second switch relay protection prefabricated cabin (15), a first main transformer prefabricated cabin (16), a second main transformer prefabricated cabin (17), a battery prefabricated cabin (18), a grounding transformer prefabricated cabin (19), a diesel generator prefabricated cabin (20) and an emergency power distribution prefabricated cabin (21); The first switch relay protection prefabricated cabin (14) and the second switch relay protection prefabricated cabin (15) are arranged at intervals on both sides of one direction of the second-floor platform (3); The battery prefabricated cabin (18) and the grounding transformer prefabricated cabin (19) are arranged adjacent to each other and are located on one side of the second-floor platform (3) in another direction; the diesel generator prefabricated cabin (20) and the emergency power distribution prefabricated cabin (21) are arranged adjacent to each other and are located on the other side of the second-floor platform (3) in another direction; The first main transformer prefabricated cabin (16) and the second main transformer prefabricated cabin (17) are arranged adjacent to each other and are disposed in the middle of the second-floor platform (3).

7. The prefabricated cabin-type module integrated offshore booster station according to claim 6, characterized in that: The first switch relay protection prefabricated cabin (14) and the second switch relay protection prefabricated cabin (15) are double-layer prefabricated cabin structures, wherein the lower layer is equipped with GIS combination electrical appliances and switch cabinets, and the upper layer is equipped with relay protection equipment and power distribution equipment.

8. The prefabricated cabin-type module integrated offshore booster station according to claim 1, characterized in that: An inspection passage is reserved between each prefabricated cabin in the electrical equipment prefabricated cabin module, and each prefabricated cabin is equipped with a fire protection, temperature control and dehumidification system.

9. The prefabricated cabin-type module integrated offshore booster station according to any one of claims 1 to 8, characterized in that: Also includes: The wiring channel (22) connects the first-layer platform (2) and the second-layer platform (3). After the optical cables of the electrical equipment are connected, they are uniformly collected through the wiring channel (22) to the import and export submarine cables to the land-based centralized control station.

10. A method for constructing an offshore booster station integrated with prefabricated cabin modules, characterized in that: include: Prefabricate the first-floor platform, second-floor platform, infrastructure prefabricated cabin modules and electrical equipment prefabricated cabin modules, and configure fire protection, temperature control and dehumidification systems in each prefabricated cabin of the electrical equipment prefabricated cabin modules; The conductor frame is hoisted into place by sea, and then the first-level platform and the second-level platform are hoisted and installed in place by sea, and the infrastructure prefabricated cabin modules and electrical equipment prefabricated cabin modules are independently transported to the booster station; Lift the infrastructure prefabricated cabin module to the predetermined position on the first-floor platform; Hoist the electrical equipment prefabricated cabin module to the predetermined position on the second-floor platform; The prefabricated cabins in the electrical equipment prefabricated cabin module are electrically connected through prefabricated cables, and joint debugging is carried out to complete the construction.

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