Deep sea floating type wind turbine generator cabin system and fan

Abstract

The invention discloses a deep sea floating type wind turbine generator unit cabin system and a draught fan, and relates to the technical field of wind power generation equipment, the deep sea floating type wind turbine generator unit cabin system and the draught fan comprise a cabin, a transformer and a generator cooler, and a main shaft assembly, a gear box and a generator which are sequentially connected are arranged in the cabin; the top of the cabin is composed of a plurality of independent cabin cover upper cover plates which are detachably connected in a sealed mode, the control cabinet, the converter, the hydraulic station and the auxiliary transformer are evenly arranged on the two sides of the gearbox, the transformer is located outside the cabin, and the generator cooler comprises a generator heat exchange box and a heat exchange piece with the heat exchange function with the generator heat exchange box. The generator heat exchange box is mounted at the top of the generator, one end of the heat exchange part is communicated with the generator heat exchange box, and the other end of the heat exchange part extends out of the cabin, so that parts in the cabin can be conveniently overhauled or replaced, the overhauling cost is reduced, salt mist and impurities are prevented from entering equipment, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of wind power generation equipment technology, and more specifically, to a deep-sea floating wind turbine nacelle system and wind turbine. Background Technology

[0002] As offshore wind power expands into deeper and more remote areas, floating offshore wind turbines have become an important development direction. The nacelle, as the core power and control unit of the wind turbine, directly affects the operating efficiency, service life, and maintenance costs of the wind turbine due to the rationality of its internal equipment layout (such as gearboxes, converters, generators, and box-type transformers), its heat dissipation reliability, and structural stability.

[0003] The existing floating offshore wind turbine nacelle layout has the following technical defects. In the existing technology, the gearbox and converter mostly adopt an external water cooling system. During installation and use, it is necessary to set up complex components such as support trusses, pump stations, valves, and cooling water pipelines. In the high salt spray and high humidity environment at sea, the pipelines are prone to corrosion and leakage, and the failure rate of pump stations and valves is also relatively high, which increases the difficulty and cost of operation and maintenance. At the same time, the truss system not only increases the overall weight and manufacturing cost of the nacelle, but also reduces the structural stability of the nacelle under the wind and wave load at sea.

[0004] In summary, how to reduce the impact of heat exchange components on the wind turbine nacelle is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a deep-sea floating wind turbine nacelle system and wind turbine, which facilitates the maintenance or replacement of components inside the nacelle, reduces maintenance costs, and adopts an external heat dissipation method to effectively prevent salt spray and impurities from entering the equipment and extend the service life of the equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A deep-sea floating wind turbine nacelle system and wind turbine, comprising:

[0008] The engine room contains a main shaft assembly, a gearbox, and a generator arranged in sequence. The engine room also contains a control cabinet, a converter, a hydraulic station, and an auxiliary transformer. The top of the engine room consists of several independent, sealed, and detachably connected engine room cover panels.

[0009] The control cabinet, the converter, the hydraulic station, and the auxiliary transformer are evenly arranged on both sides of the gearbox;

[0010] A transformer, located outside the nacelle and installed below the nacelle;

[0011] A generator cooler includes a generator heat exchange box and a heat exchange component that exchanges heat with the generator heat exchange box. The generator heat exchange box is located inside the engine compartment and installed on the top of the generator. One end of the heat exchange component is connected to the generator heat exchange box, and the other end of the heat exchange component extends out of the engine compartment.

[0012] Furthermore, the generator cooler is an evaporative cooler, and the generator cooler also includes a plurality of first cooling pipes, the two ends of which are respectively connected to the generator heat exchange box and the generator.

[0013] Furthermore, the heat exchanger is a tubular structure, the heat exchanger is connected to the generator heat exchange box, and the portion of the heat exchanger located outside the engine compartment is provided with a plurality of heat dissipation fins.

[0014] Furthermore, the present invention also includes:

[0015] A converter cooler includes at least one converter heat exchange box, several second cooling pipes, and converter heat exchange tubes. The converter heat exchange box is installed inside the engine compartment. Both ends of the several second cooling pipes are respectively connected to the converter heat exchange box and the converter. One end of the converter heat exchange tube is connected to the converter heat exchange box, and the other end of the converter heat exchange tube is connected to the outside of the engine compartment.

[0016] Furthermore, the present invention provides that there are two converter heat exchange tubes, which are respectively connected to different side walls of the converter heat exchange box.

[0017] Furthermore, the present invention also includes:

[0018] A gearbox cooler includes at least one gearbox heat exchange box, several third cooling pipes, and a gearbox heat exchange tube. The gearbox heat exchange box is installed inside the engine compartment. Both ends of the several third cooling pipes are respectively connected to the gearbox heat exchange box and the gearbox. One end of the gearbox heat exchange tube is connected to the gearbox heat exchange box, and the other end of the gearbox heat exchange tube is connected to the outside of the engine compartment.

[0019] Furthermore, the present invention provides that there are two gearbox heat exchange tubes, which are respectively connected to different side walls of the gearbox heat exchange box.

[0020] Furthermore, in this invention, the gearbox heat exchange tube, the converter heat exchange tube, and the heat exchange component are respectively located on different side walls of the nacelle.

[0021] Furthermore, the present invention also includes:

[0022] The support assembly includes a first support member and a second support member, both of which are installed inside the cabin. The second support member is located below the first support member and is used to support the first support member.

[0023] Furthermore, the present invention also includes:

[0024] The fresh air system includes a fresh air duct that is connected to the outside of the cabin and is equipped with a filter device.

[0025] The deep-sea floating wind turbine nacelle system and turbine provided by this invention, in implementation, have a main shaft assembly, gearbox, and generator arranged sequentially inside the nacelle. The nacelle also houses a control cabinet, converter, hydraulic station, and auxiliary transformer. The top of the nacelle consists of several independent, sealed, and detachably connected nacelle cover panels. This design facilitates easier inspection and replacement of internal components, reducing maintenance costs. The control cabinet, converter, hydraulic station, and auxiliary transformer are evenly distributed on both sides of the gearbox. The transformer is located outside the nacelle and installed below it. The box-type transformer is close to the tower and uses a bottom-mounted installation. When the box-type transformer needs to be replaced, it can be directly removed from the rear frame suspension structure by vertical descent without disassembling other equipment inside the nacelle, significantly simplifying the maintenance process and reducing operating costs. Furthermore, the high-voltage, large-capacity transformer is isolated from the low-voltage electrical equipment in the nacelle, eliminating the threat of fire, explosion, and other risks to the core nacelle. The large amount of heat generated by the transformer operation is directly dissipated into the external atmosphere, avoiding the concentrated heat impact of its shell on the internal temperature environment of the nacelle. The generator cooler includes a generator heat exchange box and heat exchange components with heat exchange functions with the generator heat exchange box. The generator heat exchange box is located in the nacelle and installed on the top of the generator. One end of the heat exchange component is connected to the generator heat exchange box, and the other end of the heat exchange component extends out of the nacelle, adopting an external heat dissipation method, which effectively prevents salt spray and impurities from entering the equipment and extends the service life of the equipment. The generator's natural air-cooled evaporative cooling heat exchange consumes no power and does not require the addition of a drive source structure. At the same time, there are no external water-cooling fins and nacelle trusses, reducing the complexity of the nacelle structure and making the nacelle structure more compact. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall axonometric structure of the cabin provided by the present invention;

[0028] Figure 2 This is a structural schematic diagram of the overall side of the cabin provided by the present invention;

[0029] Figure 3 This is a schematic diagram of the axial structure of the heat exchanger provided by the present invention;

[0030] Figure 4 This is a schematic diagram of the overall axial section of the cabin provided by the present invention;

[0031] Figure 5 This is a structural schematic diagram of the overall side cross-section of the cabin provided by the present invention;

[0032] Figure 6 This is a schematic diagram of the overall top axial side structure of the cabin provided by the present invention;

[0033] Figure 7 This is a front view of the overall top of the cabin provided by the present invention.

[0034] Figures 1-7 In the accompanying drawings, the reference numerals include:

[0035] 1. Cabin; 101. Cabin cover panel;

[0036] 2. Spindle assembly;

[0037] 3. Gearbox;

[0038] 4. Generator;

[0039] 5. Control cabinet;

[0040] 6. Converter;

[0041] 7. Auxiliary transformer;

[0042] 8. Hydraulic station;

[0043] 9. Transformer;

[0044] 10. Generator cooler; 1001. Generator heat exchanger box; 1002. First cooling pipe; 1003. Heat exchanger components; 1004. Heat sink;

[0045] 11. Converter cooler; 1101. Converter heat exchanger box; 1102. Converter heat exchanger tube; 1103. Second cooling pipe;

[0046] 12. Gearbox cooler; 1201. Gearbox heat exchanger; 1202. Gearbox heat exchange tube; 1203. Third cooling pipe;

[0047] 13. Support component; 1301. First support component; 1302. Second support component;

[0048] 14. Fresh air system. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] The core of this invention is to provide a deep-sea floating wind turbine nacelle system and wind turbine, which facilitates the inspection or replacement of components inside the nacelle, reduces maintenance costs, and adopts an external heat dissipation method to effectively prevent salt spray and impurities from entering the equipment, thus extending the service life of the equipment.

[0051] Please refer to Figure 3 A deep-sea floating wind turbine nacelle system and wind turbine are disclosed, comprising a nacelle 1, a transformer 9, and a generator cooler 10. The nacelle 1 contains a main shaft assembly 2, a gearbox 3, and a generator 4 arranged sequentially. The nacelle 1 also contains a control cabinet 5, a converter 6, a hydraulic station 8, and an auxiliary transformer 7. The top of the nacelle 1 is composed of several independent and sealed detachably connected nacelle cover plates 101. The control cabinet 5, converter 6, hydraulic station 8, and auxiliary transformer 7 are evenly arranged on both sides of the gearbox 3. The transformer 9 is located outside the nacelle 1 and installed below the nacelle 1. The generator cooler 10 includes a generator heat exchange box 1001 and a heat exchange component 1003 with heat exchange function with the generator heat exchange box 1001. The generator heat exchange box 1001 is located inside the nacelle 1 and installed on top of the generator 4. One end of the heat exchange component 1003 is connected to the generator heat exchange box 1001, and the other end of the heat exchange component 1003 extends out of the nacelle 1.

[0052] It should be noted that in this embodiment of the invention, the main shaft assembly 2 is located at the front of the nacelle 1 cover and is used to connect the wind turbine and transmit torque to the gearbox 3.

[0053] In addition, in this embodiment of the invention, the gearbox 3 and the spindle assembly 2 are connected by flange bolts.

[0054] In addition, in this embodiment of the invention, the transformer 9 is a box-type transformer 9, which has heat dissipation fins evenly distributed. The large heat dissipation fins allow for natural air cooling with no power consumption, and there is no need to add other active heat dissipation structures.

[0055] In the above embodiments, please refer to Figure 2The box-type transformer 9 is installed close to the tower via a suspension structure supported on the lower side of the rear frame. This not only improves the installation reliability of the box-type transformer 9 by utilizing the stability of the tower, but also reduces the load offset at the tail of the nacelle 1, thereby improving the overall stability of the nacelle 1 under sea wave loads.

[0056] Optionally, in some embodiments, the shape of the nacelle cover 101 matches the shape of the top of the nacelle 1, and the two sides of several nacelle cover 101 are connected by a pressure cap, and the connection position is sealed with a rubber strip. The nacelle cover 101 is fixed to the top of the nacelle 1 by bolts.

[0057] In a specific implementation of this invention, the nacelle 1 contains a main shaft assembly 2, a gearbox 3, and a generator 4 arranged sequentially. The nacelle 1 also contains a control cabinet 5, a converter 6, a hydraulic station 8, and an auxiliary transformer 7. The top of the nacelle 1 consists of several independent, sealed, and detachably connected nacelle cover plates 101. This arrangement facilitates the inspection and replacement of components inside the nacelle 1, reducing maintenance costs. The control cabinet 5, converter 6, hydraulic station 8, and auxiliary transformer 7 are evenly arranged on both sides of the gearbox 3. The transformer 9 is located outside the nacelle 1 and installed below it. The box-type transformer 9 is close to the tower and uses a bottom-mounted installation. When the box-type transformer 9 needs to be replaced, it can be directly removed from the rear frame suspension structure by vertical descent without disassembling other equipment inside the nacelle 1, significantly simplifying the maintenance process, reducing operating costs, and allowing for the efficient use of high-voltage, high-capacity transformers. Isolated from low-voltage electrical equipment in the engine room, the core engine room is protected from the risks of fire and explosion. The large amount of heat generated by the transformer is directly dissipated into the external atmosphere, avoiding the concentrated heat impact of its shell on the internal temperature environment of the engine room. The generator cooler 10 includes a generator heat exchange box 1001 and a heat exchange component 1003 with heat exchange function with the generator heat exchange box 1001. The generator heat exchange box 1001 is located in the engine room 1 and installed on top of the generator 4. One end of the heat exchange component 1003 is connected to the generator heat exchange box 1001, and the other end of the heat exchange component 1003 extends out of the engine room 1. The external heat dissipation method effectively prevents salt spray and impurities from entering the equipment, extending the service life of the equipment. The generator's natural air-cooled evaporative cooling heat exchange has no power consumption and does not require the addition of a drive source structure. At the same time, there are no external water-cooling fins and engine room trusses, which reduces the complexity of the engine room structure and makes the engine room structure more compact.

[0058] In the above embodiments, the close proximity design of generator-converter, converter-auxiliary transformer, and converter-substation enables the centralization of the wiring ports of core electrical equipment, shortens the line path, and avoids the wiring redundancy and complex cable tray design caused by the dispersed equipment in the traditional layout.

[0059] Please refer to Figure 4In some embodiments, the generator cooler 10 is an evaporative cooler. The generator cooler 10 also includes several first cooling pipes 1002. The two ends of the several first cooling pipes 1002 are respectively connected to the generator heat exchange box 1001 and the generator 4. The generator 4 adopts evaporative cooling, which utilizes the natural wind at sea to achieve efficient condensation and heat dissipation with low energy consumption. Specifically, the generator heat exchange box 1001 is equipped with a heat exchange medium, and the end of the first cooling pipe 1002 that enters the generator 4 is wrapped around the heat-generating component. The heat is carried away by the liquid heat exchange medium flowing in the first cooling pipe 1002, and the heat is exchanged with the heat outside the engine room 1 through the heat exchange component 1003, thereby realizing the heat dissipation of the generator 4. This method avoids adding redundant pipes, reduces the overall cost and weight of the engine room 1, and avoids heat dissipation through external connection, avoiding damage to the internal components of the engine room 1 and extending its service life.

[0060] Optionally, in some embodiments, the first cooling pipe 1002 is made of a high-efficiency thermally conductive material, and the cooling medium is mainly fluorinated liquid, mineral oil, etc.

[0061] Please refer to Figure 1 In some embodiments, the heat exchanger 1003 is a tubular structure. The heat exchanger 1003 is connected to the generator heat exchange box 1001. The part of the heat exchanger 1003 located outside the nacelle 1 is provided with a number of heat dissipation fins 1004. The tubular heat exchanger 1003 is connected to the generator heat exchange box 1001, and the other end extends out of the nacelle 1 and is sealed with the nacelle 1. Therefore, the heat exchange medium can exchange heat with the outside of the nacelle 1 through the tubular heat exchanger 1003 to complete the heat dissipation of the generator 4.

[0062] In the above embodiment, the heat sink 1004 is made of a thermally conductive material, and the heat sink 1004 is evenly distributed along the axis of the tubular heat exchanger 1003 to increase its heat exchange efficiency to the heat exchanger 1003.

[0063] Optionally, in some embodiments, a cooling fan is also included. In order to further improve the heat exchange efficiency of the heat exchange component 1003, a cooling fan is installed on the engine compartment 1 and electrically connected to the battery of the generator 4. A temperature detector and controller are installed on the generator 4 to monitor the temperature of the generator 4 in real time. When the temperature is detected to be higher than a preset value, the cooling fan is started to increase the air speed passing through the heat exchange component 1003, thereby improving its heat exchange efficiency. The speed of the cooling fan can be adjusted in real time according to the value of the temperature detector.

[0064] Optionally, in some embodiments, a water supply pipe and a nozzle are also installed in front of the cooling fan. The water supply pipe is connected to a high-pressure water pump, and the nozzle is an atomizing nozzle. When the temperature is higher than a preset value, the high-pressure water pump is started to atomize the water and spray it out. After passing through the cooling fan and the heat exchanger 1003, the heat exchange efficiency of the heat exchanger 1003 is further improved.

[0065] Please refer to Figure 7 In some embodiments, a converter cooler 11 is also included. The converter cooler 11 includes at least one converter heat exchange box 1101, a plurality of second cooling pipes 1103, and converter heat exchange tubes 1102. The converter heat exchange box 1101 is installed inside the nacelle 1. The two ends of the plurality of second cooling pipes 1103 are respectively connected to the converter heat exchange box 1101 and the converter 6. One end of the converter heat exchange tube 1102 is connected to the converter heat exchange box 1101, and the other end of the converter heat exchange tube 1102 is connected to the outside of the nacelle 1. Specifically, the second cooling pipe 1103 contacts the heating element of the converter 6 by winding, thereby guiding the heat to the converter heat exchange box 1101. The converter heat exchange box 1101 is connected to the outside through the converter heat exchange pipe 1102. The second cooling pipe 1103 and the converter heat exchange box 1101 are sealed. Therefore, after the outside cold air enters the converter heat exchange box 1101, it comes into contact with the second cooling pipe 1103 and carries away the heat, thereby avoiding damage to the internal components of the cabin 1 and extending its service life.

[0066] Optionally, in some embodiments, there are two converter heat exchange tubes 1102, which are respectively connected to different side walls of the converter heat exchange box 1101. That is, by setting two converter heat exchange tubes 1102, air is formed between the two converter heat exchange tubes 1102 and the converter heat exchange box 1101, which is beneficial to further improve its heat exchange efficiency.

[0067] In the above embodiment, in order to further improve its heat exchange efficiency, axial flow fans are installed in both converter heat exchange tubes 1102 and their air blowing direction is consistent. This helps to increase the air velocity in the air duct formed between the two converter heat exchange tubes 1102 and the converter heat exchange box 1101, which helps to further improve its heat exchange efficiency. At the same time, the large amount of heat generated by the converter during operation is directly dissipated to the outside atmosphere, avoiding the heat concentration effect of its shell on the internal temperature environment of the cabin.

[0068] Please refer to Figure 7In some embodiments, a gearbox cooler 12 is also included. The gearbox cooler 12 includes at least one gearbox heat exchange box 1201, a plurality of third cooling pipes 1203, and a gearbox heat exchange tube 1202. The gearbox heat exchange box 1201 is installed inside the engine compartment 1. The two ends of the plurality of third cooling pipes 1203 are respectively connected to the gearbox heat exchange box 1201 and connected to the gearbox 3. One end of the gearbox heat exchange tube 1202 is connected to the gearbox heat exchange box 1201, and the other end of the gearbox heat exchange tube 1202 is connected to the outside of the engine compartment 1. Specifically, the third cooling pipe 1203 contacts the heating element of the gearbox 3 by winding, thereby guiding the heat to the gearbox heat exchange box 1201. The gearbox heat exchange box 1201 is connected to the outside through the gearbox heat exchange pipe 1202. The third cooling pipe 1203 and the gearbox heat exchange box 1201 are sealed. Therefore, after the outside cold air enters the gearbox heat exchange box 1201, it comes into contact with the third cooling pipe 1203 and carries away the heat, thereby avoiding damage to the internal components of the engine compartment 1 and extending its service life.

[0069] Optionally, in some embodiments, there are two gearbox heat exchange tubes 1202, which are respectively connected to different side walls of the gearbox heat exchange box 1201. That is, by setting two gearbox heat exchange tubes 1202, air is formed between the two gearbox heat exchange tubes 1202 and the gearbox heat exchange box 1201, which is conducive to further improving its heat exchange efficiency. At the same time, the large amount of heat generated by the gearbox during operation is directly dissipated to the outside atmosphere, avoiding the heat concentration effect of its shell on the internal temperature environment of the cabin.

[0070] In the above embodiment, in order to further improve its heat exchange efficiency, axial flow fans are installed in both gearbox heat exchange tubes 1202 and their blowing directions are consistent, which helps to increase the wind speed in the air duct formed between the two gearbox heat exchange tubes 1202 and the gearbox heat exchange box 1201, and further improves its heat exchange efficiency.

[0071] Optionally, in some embodiments, the gearbox heat exchange tube 1202, the converter heat exchange tube 1102, the heat exchange component 1003 and the connection position with the nacelle 1 are respectively located on different side walls of the nacelle 1. By setting multiple sets of heat dissipation devices in different positions of the nacelle 1, the impact of multiple sets of heat dissipation devices on the heat dissipation function can be reduced, and the heat dissipation efficiency of multiple sets of heat dissipation devices can be effectively improved.

[0072] Please refer to Figure 5In some embodiments, a support assembly 13 is also included. The support assembly 13 includes a first support member 1301 and a second support member 1302. Both the first support member 1301 and the second support member 1302 are installed inside the engine compartment 1. The second support member 1302 is located below the first support member 1301 and is used to support the first support member 1301. Specifically, there are two first support members 1301, which are located on both sides of the spindle assembly 2 and are used to support the various components. At the same time, the second support member 1302 supports the first support member 1301.

[0073] Optionally, in some embodiments, both the first support member 1301 and the second support member 1302 can be made of channel steel.

[0074] Optionally, in some embodiments, the bottom plate of the nacelle 1 is provided with at least two sliding holes arranged along the front-rear direction of the nacelle 1, and the second support member 1302 is provided with a lifting rod. The lifting rod extends out of the nacelle 1 through the sliding holes, and the transformer 9 is fixedly installed to the second support member 1302 through the lifting rod to realize the hoisting of the transformer 9. The bottom of the second support member 1302 is provided with rollers or sliders, and the bottom plate of the nacelle 1 is provided with a matching slide rail. Therefore, when hoisting or maintaining the internal components of the nacelle 1, the position of the transformer 9 can be quickly adjusted by moving the second support member 1302.

[0075] In the above embodiments, a cover plate or a windproof curtain is provided at the sliding hole so that the sliding hole is in a closed state after the second support member 1302 is moved.

[0076] Please refer to Figure 6 In some embodiments, a fresh air system 14 is also included. The fresh air system 14 includes a fresh air duct that is connected to the outside of the nacelle 1. A filter device is installed on the fresh air duct. The fresh air system 14 adopts a multi-stage filtration and automatic temperature control design, which can effectively remove salt spray and impurities in the fresh air to ensure the cleanliness of the internal environment of the nacelle 1. It can also maintain the stable internal temperature of the nacelle 1 by adjusting the speed of the air supply fan in high-temperature weather, so as to meet the equipment operation requirements and improve the operational reliability of the wind turbine.

[0077] In other words, the key point of this invention is that: the nacelle 1 is equipped with a main shaft assembly 2, a gearbox 3, and a generator 4 arranged sequentially. The nacelle 1 also houses a control cabinet 5, a converter 6, a hydraulic station 8, and an auxiliary transformer 7. The top of the nacelle 1 is composed of several independent, sealed, and detachably connected nacelle cover plates 101. This arrangement facilitates the inspection and replacement of components inside the nacelle 1, reducing maintenance costs. The control cabinet 5, converter 6, hydraulic station 8, and auxiliary transformer 7 are evenly arranged on both sides of the gearbox 3. The transformer 9 is located outside the nacelle 1 and installed below it. The box-type transformer 9 is close to the tower and uses a bottom-mounted installation. When the box-type transformer 9 needs to be replaced, it can be directly removed from the rear frame suspension structure by vertical descent without disassembling other equipment inside the nacelle 1, significantly simplifying the maintenance process, reducing operating costs, and enabling high-voltage, high-capacity... The transformer is isolated from the low-voltage electrical equipment in the nacelle, eliminating the threat of fire, explosion and other risks to the core nacelle. The large amount of heat generated by the transformer operation is directly dissipated into the external atmosphere, avoiding the heat concentration effect of its shell on the internal temperature environment of the nacelle. The generator cooler 10 includes a generator heat exchange box 1001 and a heat exchange component 1003 with heat exchange function with the generator heat exchange box 1001. The generator heat exchange box 1001 is located in the nacelle 1 and installed on the top of the generator 4. One end of the heat exchange component 1003 is connected to the generator heat exchange box 1001, and the other end of the heat exchange component 1003 extends out of the nacelle 1, adopting an external heat dissipation method, effectively preventing salt spray and impurities from entering the equipment, extending the service life of the equipment. The generator's natural air-cooled evaporative cooling heat exchange has no power consumption and does not require the addition of a drive source structure. At the same time, there are no external water cooling fins and nacelle trusses, reducing the complexity of the nacelle structure and making the nacelle structure more compact.

[0078] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0079] The foregoing has provided a detailed description of a deep-sea floating wind turbine nacelle system and wind turbine provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A deep-sea floating wind turbine nacelle system and wind turbine, characterized in that, include: The engine room (1) is provided with a main shaft assembly (2), a gearbox (3) and a generator (4) arranged in sequence. The engine room (1) is also provided with a control cabinet (5), a converter (6), a hydraulic station (8) and an auxiliary transformer (7). The top of the engine room (1) is composed of several independent and sealed detachable engine room cover plates (101). The control cabinet (5), the converter (6), the hydraulic station (8) and the auxiliary transformer (7) are evenly arranged on both sides of the gearbox (3); Transformer (9), the transformer (9) is located outside the nacelle (1) and installed below the nacelle (1); The generator cooler (10) includes a generator heat exchange box (1001) and a heat exchange component (1003) having the function of exchanging heat with the generator heat exchange box (1001). The generator heat exchange box (1001) is located in the engine compartment (1) and installed on the top of the generator (4). One end of the heat exchange component (1003) is connected to the generator heat exchange box (1001), and the other end of the heat exchange component (1003) extends out of the engine compartment (1).

2. The deep-sea floating wind turbine nacelle system and wind turbine according to claim 1, characterized in that, The generator cooler (10) is an evaporative cooler. The generator cooler (10) also includes several first cooling pipes (1002). The two ends of the several first cooling pipes (1002) are respectively connected to the generator heat exchange box (1001) and the generator (4).

3. The deep-sea floating wind turbine nacelle system and wind turbine according to claim 2, characterized in that, The heat exchanger (1003) is a tubular structure. The heat exchanger (1003) is connected to the generator heat exchange box (1001). The part of the heat exchanger (1003) located outside the engine compartment (1) is provided with several heat sinks (1004).

4. The deep-sea floating wind turbine nacelle system and wind turbine according to claim 3, characterized in that, Also includes: A converter cooler (11) includes at least one converter heat exchange box (1101), several second cooling pipes (1103), and a converter heat exchange tube (1102). The converter heat exchange box (1101) is installed inside the engine room (1). The two ends of several second cooling pipes (1103) are respectively connected to the converter heat exchange box (1101) and the converter (6). One end of the converter heat exchange tube (1102) is connected to the converter heat exchange box (1101), and the other end of the converter heat exchange tube (1102) is connected to the outside of the engine room (1).

5. The deep-sea floating wind turbine nacelle system and wind turbine according to claim 4, characterized in that, There are two heat exchange tubes (1102) in the converter, and they are respectively connected to different side walls of the heat exchange box (1101) of the converter.

6. The deep-sea floating wind turbine nacelle system and wind turbine according to claim 5, characterized in that, Also includes: The gearbox cooler (12) includes at least one gearbox heat exchange box (1201), several third cooling pipes (1203), and gearbox heat exchange tubes (1202). The gearbox heat exchange box (1201) is installed in the engine room (1). The two ends of several third cooling pipes (1203) are respectively connected to the gearbox heat exchange box (1201) and the gearbox (3). One end of the gearbox heat exchange tube (1202) is connected to the gearbox heat exchange box (1201), and the other end of the gearbox heat exchange tube (1202) is connected to the outside of the engine room (1).

7. The deep-sea floating wind turbine nacelle system and wind turbine according to claim 6, characterized in that, There are two gearbox heat exchange tubes (1202), which are respectively connected to different side walls of the gearbox heat exchange box (1201).

8. The deep-sea floating wind turbine nacelle system and wind turbine according to claim 7, characterized in that, The gearbox heat exchange tube (1202), the converter heat exchange tube (1102), and the heat exchange component (1003) are connected to the nacelle (1) at different side walls of the nacelle (1).

9. The deep-sea floating wind turbine nacelle system and wind turbine according to any one of claims 1-8, characterized in that, Also includes: The support assembly (13) includes a first support member (1301) and a second support member (1302). The first support member (1301) and the second support member (1302) are both installed in the cabin (1). The second support member (1302) is located below the first support member (1301) and is used to support the first support member (1301).

10. The deep-sea floating wind turbine nacelle system and wind turbine according to any one of claims 1-8, characterized in that, Also includes: The fresh air system (14) includes a fresh air duct that is connected to the outside of the cabin (1) and is equipped with a filter device.

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