Modularized wind generating set cabin

Abstract

The utility model discloses a modularized cabin of a wind generating set. The modularized wind generating set cabin comprises a cabin cover, a main transmission system, a front rack, a rear rack, supporting brackets and mounting brackets, the supporting brackets are arranged at the bottoms of the front rack and the rear rack, the mounting brackets are arranged at the tops of the front rack and the rear rack, the cabin cover is mounted on the supporting brackets, and the main transmission system is mounted on the mounting brackets. The main transmission system comprises a gear box, a generator, a first cooling assembly and a second cooling assembly, the generator is connected with the gear box, the first cooling assembly is arranged above the gear box, and the second cooling assembly is arranged above the generator. Modularized assembly is achieved, the production speed is high, cost is low, external impurities are effectively prevented from being introduced into a cabin in the cooling process, and the overall service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind turbine generator sets, and in particular relates to a modularized wind turbine generator set cabin. Background Art

[0002] The nacelle cover is used to protect the generator set from the external environment and plays an important role in ensuring the stable operation of the wind turbine. In the prior art, the nacelle cover is usually made of fiberglass. During the manufacturing process, it is necessary to prepare molds, cover molding and other process flows. The entire process is time-consuming and has high manufacturing costs. Surface quality defects are prone to occur during the manufacture of large nacelles. During assembly, due to the large size of the nacelle cover, the nacelle body is difficult to assemble. After long-term use, it ages and turns yellow, and it is not easy to recycle, resulting in a waste of resources. When the nacelle of a wind turbine is used at sea and in deserted areas, it is easy to cause internal contamination of the nacelle when air cooling is used for cooling, thereby reducing the service life. Utility Model Content

[0003] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the utility model provides a modular wind turbine nacelle including a nacelle cover, a main transmission system, a front frame, a rear frame, a support bracket and a mounting bracket, wherein the support bracket is arranged at the bottom of the front frame and the rear frame, the mounting bracket is arranged at the top of the front frame and the rear frame, the nacelle cover is mounted on the support bracket, and the main transmission system is mounted on the mounting bracket, wherein:

[0004] The nacelle cover comprises a tower top shell, an arc shell, a bottom shell, a side shell, a top shell, a front baffle, a rear baffle and an exhaust port, wherein the side shells are symmetrically arranged on both sides of the bottom shell, the top shell is arranged at the upper end of the side shell corresponding to the bottom shell, the arc shell is arranged between the bottom shell and the side shell and between the side shell and the top shell, the tower top shell is arranged at the front end of the bottom shell and the arc shell, the front baffle is arranged at the front end of the side shell, the rear baffle is arranged at the rear end of the side shell, and the exhaust port is arranged at the upper end of the top shell;

[0005] The main transmission system includes a gearbox, a generator, a first cooling assembly and a second cooling assembly. The generator is connected to the gearbox, the first cooling assembly is arranged above the gearbox, and the second cooling assembly is arranged above the generator.

[0006] Furthermore, in the above modular wind turbine nacelle, the tower top shell is fixedly connected to the front frame via the support bracket, and the bottom shell is fixedly connected to the rear frame via the support bracket.

[0007] Furthermore, in the above-mentioned modular wind turbine nacelle, dovetail blocks are provided on both sides of the bottom shell, the side shell and the top shell, dovetail grooves are provided on both sides of the arc shell, the dovetail blocks match the dovetail grooves, and the arc shell and the bottom shell and the side shell, and the side shell and the top shell are connected through the dovetail blocks and the dovetail grooves.

[0008] Furthermore, in the above-mentioned modular wind turbine nacelle, a first air inlet opening is arranged in the middle of the side shell, a second air inlet opening is arranged on one side of the side shell close to the second cooling assembly, and an air outlet opening is arranged on the other side of the side shell close to the second cooling assembly.

[0009] Further, in the above-mentioned modular wind turbine nacelle, the first cooling assembly includes a heat exchanger, a gearbox cooling air inlet, a gearbox cooling air outlet, a nacelle cooling air inlet and a nacelle cooling air outlet, the heat exchanger is connected to the gearbox, the gearbox cooling air inlet is symmetrically arranged at the left and right ends of the heat exchanger, the gearbox cooling air outlet is arranged at the top of the heat exchanger, and the nacelle cooling air inlet and the nacelle cooling air outlet are symmetrically arranged at the front and rear ends of the heat exchanger;

[0010] The gear box cooling air inlet is communicated with the first air inlet opening, and the gear box cooling air outlet is communicated with the air outlet.

[0011] Furthermore, in the above-mentioned modular wind turbine nacelle, the second cooling assembly is connected to the generator, an air inlet channel is provided at one end of the second cooling assembly, and an air outlet channel is provided at the other end of the second cooling assembly, the air inlet channel is connected to the second air inlet opening, and the air outlet channel is connected to the air outlet opening.

[0012] Furthermore, in the above-mentioned modular wind turbine nacelle, the air outlet is arranged in a V-shape, and a weather frame is arranged on the top shell near the middle of the air outlet.

[0013] Furthermore, in the above-mentioned modular wind turbine nacelle, the nacelle cover is made of metal honeycomb panel material.

[0014] Furthermore, in the above modular wind turbine nacelle, the front baffle is formed by splicing a plurality of small baffles.

[0015] The modular wind turbine generator nacelle of the utility model has the following advantages and beneficial effects:

[0016] The cabin cover can be produced in a standardized manner and then assembled in a modular manner, which effectively improves production efficiency and installation efficiency and reduces manufacturing costs. The cabin cover shell is made of metal honeycomb panels, which effectively reduces the overall weight of the cabin cover, has good noise reduction effects, and improves strength and rigidity. There is no need to lay lightning protection cables in the cabin cover, and it is easy to recycle. The gearbox and cabin are cooled by the first cooling assembly, and the generator is cooled by the second cooling assembly. Both cooling assemblies are air-cooled. During the cooling process, only heat exchange occurs between the outside air and the inside of the cabin, which effectively avoids the introduction of external impurities into the cabin and effectively improves the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the present invention and constitute a part of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 This is a front view of the modular wind turbine cabin of the utility model;

[0019] Figure 2 This is a left view of the modular wind turbine generator cabin of the utility model;

[0020] Figure 3 A top view of a modular wind turbine generator cabin of the utility model;

[0021] Figure 4 For along Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0022] Figure 5 For along Figure 3 Schematic diagram of the cross-sectional structure of the CC;

[0023] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of I.

[0024] Description of reference numerals:

[0025] 1: Nacelle cover, 11: Tower top shell, 12: Arc shell, 13: Bottom shell;

[0026] 14: side shell, 141: first air inlet opening, 142: second air inlet opening, 143: air outlet opening;

[0027] 15: top shell, 151: dovetail groove;

[0028] 16: front baffle, 17: rear baffle, 18: exhaust vent, 19: dovetail block;

[0029] 2: Main transmission system, 21: Gearbox, 22: Generator;

[0030] 23: first cooling assembly, 231: heat exchanger, 232: gearbox cooling air inlet, 234: gearbox cooling air outlet, 235: cabin cooling air inlet, 236: cabin cooling air outlet;

[0031] 24: Second cooling assembly;

[0032] 3: front rack; 4: rear rack; 5: support bracket; 6: mounting bracket; 7: weather rack. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] like Figures 1 to 6 As shown, the modular wind turbine nacelle of the utility model includes a nacelle cover 1, a main transmission system 2, a front frame 3, a rear frame 4, a support bracket 5 and a mounting bracket 6, the support bracket 5 is arranged at the bottom of the front frame 3 and the rear frame 4, the mounting bracket 6 is arranged at the top of the front frame 3 and the rear frame 4, the nacelle cover 1 is installed on the support bracket 5, and the main transmission system 2 is installed on the mounting bracket 6, wherein:

[0035] The nacelle cover 1 includes a tower top shell 11, an arc shell 12, a bottom shell 13, a side shell 14, a top shell 15, a front baffle 16, a rear baffle 17 and an exhaust port 18. The side shells 14 are symmetrically arranged on both sides of the bottom shell 13, the top shell 15 is arranged at the upper end of the side shell 14 and corresponds to the bottom shell 13, the arc shell 12 is arranged between the bottom shell 13 and the side shell 14 and between the side shell 14 and the top shell 15, the tower top shell 11 is arranged at the front end of the bottom shell 13 and the arc shell 12, the front baffle 16 is arranged at the front end of the side shell 14, the rear baffle 17 is arranged at the rear end of the side shell 14, and the exhaust port 18 is arranged at the upper end of the top shell 15;

[0036] The main transmission system 2 includes a gearbox 21 , a generator 22 , a first cooling assembly 23 and a second cooling assembly 24 . The generator 22 is connected to the gearbox 21 . The first cooling assembly 23 is arranged above the gearbox 21 , and the second cooling assembly 24 is arranged above the generator 22 .

[0037] Furthermore, in the modular wind turbine nacelle of the utility model, the tower top shell 11 is fixedly connected to the front frame 3 through the support bracket 5, and the bottom shell 13 is fixedly connected to the rear frame 4 through the support bracket 5, so that the nacelle cover 1 is fixed on the front frame 3 and the rear frame 4.

[0038] Furthermore, in the modular wind turbine nacelle of the utility model, dovetail blocks 19 are provided on both sides of the bottom shell 13, the side shell 14 and the top shell 15, and dovetail grooves 151 are provided on both sides of the arc shell 12. The dovetail blocks 19 match the dovetail grooves 151. The arc shell 12 and the bottom shell 13 and the side shell 14, and the side shell 14 and the top shell 15 are connected through the dovetail blocks 19 and the dovetail grooves 151, so that the bottom shell 13, the top shell 15 and the side shell 14 can be quickly modularly disassembled and assembled through the arc shell 12.

[0039] Furthermore, in the modular wind turbine nacelle of the utility model, a first air inlet opening 141 is provided in the middle of the side shell 14, a second air inlet opening 142 is provided on the side of the side shell 14 close to the second cooling assembly 24, and an air outlet opening 143 is provided on the other side of the side shell 14 close to the second cooling assembly 24, thereby realizing air cooling and heat dissipation.

[0040] Further, in the modular wind turbine nacelle of the utility model, the first cooling assembly 23 includes a heat exchanger 231, a gearbox cooling air inlet 232, a gearbox cooling air outlet 234, a nacelle cooling air inlet 235 and a nacelle cooling air outlet 236, the heat exchanger 231 is connected to the gearbox 21, the gearbox cooling air inlet 232 is symmetrically arranged at the left and right ends of the heat exchanger 231, the gearbox cooling air outlet 234 is arranged at the top of the heat exchanger 231, and the nacelle cooling air inlet 235 and the nacelle cooling air outlet 236 are symmetrically arranged at the front and rear ends of the heat exchanger 231;

[0041] The gearbox cooling air inlet 232 is communicated with the first air inlet opening 141 , and the gearbox cooling air outlet 234 is communicated with the air outlet 18 , thereby effectively ensuring that the gearbox 21 and the interior of the nacelle cover 1 can quickly dissipate heat.

[0042] Furthermore, in the modular wind turbine nacelle of the utility model, the second cooling assembly 24 is connected to the generator 22, an air inlet channel is provided at one end of the second cooling assembly 24, and an air outlet channel is provided at the other end of the second cooling assembly 24, the air inlet channel is connected to the second air inlet opening 142, and the air outlet channel is connected to the air outlet opening 143, thereby effectively ensuring the air cooling and heat dissipation of the generator 22, while avoiding the introduction of external impurities into the nacelle cover 1.

[0043] Furthermore, in the modular wind turbine nacelle of the utility model, the exhaust port 18 is arranged in a V-shape, and a meteorological frame 7 is arranged near the middle of the exhaust port 18 on the top shell 15, thereby effectively avoiding that the exhaust port 18 will not affect the accuracy of wind measurement by the meteorological frame 7 when exhausting air.

[0044] Furthermore, in the modular wind turbine nacelle of the utility model, the nacelle cover 1 is made of metal honeycomb panels, which effectively reduces the weight of the nacelle cover 1, facilitates recycling, improves strength and rigidity, and can form a Faraday cage equipotential body with good lightning protection effect.

[0045] Furthermore, in the modular wind turbine generator nacelle of the utility model, the front baffle 16 is formed by splicing a plurality of small baffles, thereby facilitating assembly.

[0046] Specifically, when modularly assembling the nacelle cover 1, first fix the tower top shell 11 and the bottom shell 13 to the front frame 3 and the rear frame 4 through the support bracket, then quickly splice the two sides of the bottom shell and the tower top shell 11 with the dovetail groove 151 on one side of the arc shell 12 through the dovetail block 19, and quickly splice the dovetail groove 151 on the other side of the arc shell 12 with the dovetail block 19 on one side of the side shell 14, then quickly splice the dovetail block 19 on the other side of the side shell 14 with the dovetail groove 151 on one side of the arc shell 12, and quickly splice the two sides of the top shell 15 with the other side of the arc shell 12 through the dovetail block 19, then fix the front baffle 16 and the rear baffle 17 to the front and rear ends of the side shell 14 through the mortise and tenon structure, and complete the modular assembly;

[0047] When the generator set is working, low-temperature air from the outside enters the heat exchanger 231 through the first air inlet opening 141 and the gear box cooling air inlet 232 connected thereto. At the same time, after the high-temperature lubricating oil of the gear box 21 enters the heat exchanger 231, the low-temperature air from the outside exchanges heat with the high-temperature lubricating oil, thereby completing the cooling of the gear box. The heated outside air then passes through the gear box cooling air outlet 234 and the exhaust port 18 connected thereto to quickly discharge heat. During the cooling process of the gear box 21, only heat exchange occurs between the outside air and the interior of the cabin, thereby avoiding the introduction of external impurities into the cabin. The main heat sources in the cabin are the gear box 21 and the generator 22. The cabin cooling air inlet 235 of the cabin cooling system is located between the gear box 21 and the generator 22, and the cabin cooling air outlet 236 is located in front of the gear box 21. The high-temperature air inside the cabin enters the heat exchanger 231 through the cabin cooling air inlet 235, exchanges heat with the low-temperature air from the outside, thereby completing the cooling of the air inside the cabin. The heated outside air is then discharged from the cabin through the exhaust port 18. Compared with the gearbox 21, the air inside the cabin requires a lower temperature. Therefore, inside the heat exchanger 231, the air inside the cabin takes precedence over the lubricating oil of the gearbox 21 and first exchanges heat with the outside low-temperature air. The heat generated by the generator 22 enters through the second air inlet opening 142 through the outside low-temperature air and the heated air after heat exchange with the generator 22 is discharged through the air outlet opening 143. During the cooling process of the generator 22, only heat exchange occurs between the outside air and the inside of the cabin, avoiding the introduction of external impurities into the cabin.

[0048] In summary, compared with the prior art, the wind turbine main frame of the utility model has the following advantages and beneficial effects:

[0049] The cabin cover can be produced in a standardized manner, and modular assembly can be achieved through the coordination of dovetail grooves and dovetail blocks, which effectively improves production efficiency and installation efficiency and reduces manufacturing costs. The cabin cover shell is made of metal honeycomb panels, which effectively reduces the overall weight of the cabin cover, has good noise reduction effects, and improves strength and rigidity. There is no need to lay lightning protection cables in the cabin cover, and it is easy to recycle. The gearbox and cabin are cooled by the first cooling assembly, and the generator is cooled by the second cooling assembly. Both cooling assemblies are air-cooled. During the cooling process, only heat exchange occurs between the outside air and the inside of the cabin, thereby effectively avoiding the introduction of external impurities into the cabin and effectively improving the service life.

[0050] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A modular wind turbine nacelle, characterized in that: The modular wind turbine nacelle comprises a nacelle cover, a main transmission system, a front frame, a rear frame, a support bracket and a mounting bracket, wherein the support bracket is arranged at the bottom of the front frame and the rear frame, the mounting bracket is arranged at the top of the front frame and the rear frame, the nacelle cover is mounted on the support bracket, and the main transmission system is mounted on the mounting bracket, wherein: The nacelle cover comprises a tower top shell, an arc shell, a bottom shell, a side shell, a top shell, a front baffle, a rear baffle and an exhaust port, wherein the side shells are symmetrically arranged on both sides of the bottom shell, the top shell is arranged at the upper end of the side shell corresponding to the bottom shell, the arc shell is arranged between the bottom shell and the side shell and between the side shell and the top shell, the tower top shell is arranged at the front end of the bottom shell and the arc shell, the front baffle is arranged at the front end of the side shell, the rear baffle is arranged at the rear end of the side shell, and the exhaust port is arranged at the upper end of the top shell; The main transmission system includes a gearbox, a generator, a first cooling assembly and a second cooling assembly. The generator is connected to the gearbox, the first cooling assembly is arranged above the gearbox, and the second cooling assembly is arranged above the generator.

2. The modular wind turbine nacelle according to claim 1, characterized in that: The tower top shell is fixedly connected to the front frame through the supporting bracket, and the bottom shell is fixedly connected to the rear frame through the supporting bracket.

3. The modular wind turbine nacelle according to claim 1, characterized in that: Dovetail blocks are provided on both sides of the bottom shell, the side shell and the top shell, dovetail grooves are provided on both sides of the arc shell, the dovetail blocks match the dovetail grooves, and the arc shell and the bottom shell and the side shell, and the side shell and the top shell are connected through the dovetail blocks and the dovetail grooves.

4. The modular wind turbine nacelle according to claim 1, characterized in that: A first air inlet opening is arranged at the middle of the side shell, a second air inlet opening is arranged at one side of the side shell close to the second cooling assembly, and an air outlet opening is arranged at the other side of the side shell close to the second cooling assembly.

5. The modular wind turbine nacelle according to claim 4, characterized in that: The first cooling assembly includes a heat exchanger, a gearbox cooling air inlet, a gearbox cooling air outlet, a cabin cooling air inlet and a cabin cooling air outlet, the heat exchanger is connected to the gearbox, the gearbox cooling air inlet is symmetrically arranged at the left and right ends of the heat exchanger, the gearbox cooling air outlet is arranged at the top of the heat exchanger, and the cabin cooling air inlet and the cabin cooling air outlet are symmetrically arranged at the front and rear ends of the heat exchanger; The gear box cooling air inlet is communicated with the first air inlet opening, and the gear box cooling air outlet is communicated with the air outlet.

6. The modular wind turbine nacelle according to claim 4, characterized in that: The second cooling assembly is connected to the generator, one end of the second cooling assembly is provided with an air inlet channel, the other end of the second cooling assembly is provided with an air outlet channel, the air inlet channel is connected to the second air inlet opening, and the air outlet channel is connected to the air outlet opening.

7. The modular wind turbine nacelle according to claim 1, characterized in that: The air outlet is arranged in a V shape, and a weather frame is arranged on the top shell near the middle of the air outlet.

8. The modular wind turbine nacelle according to claim 1, characterized in that: The cabin cover is made of metal honeycomb panel.

9. The modular wind turbine nacelle according to claim 1, characterized in that: The front baffle is formed by splicing a plurality of small baffles.

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