Split type heating and deicing cabinet used in hub

Abstract

The utility model provides a split type heating defroster used in a hub, which comprises a frame body and a plurality of box bodies, the box bodies are arranged in a matrix mode, each box body is detachably installed on the frame body, every two adjacent box bodies are communicated with each other, and every two adjacent box bodies are detachably connected. The frame body at least comprises two cross beams and two longitudinal beams, the cross beams and the longitudinal beams are provided with mounting pieces for mounting the box body, and the cross beams, the cross beams and the longitudinal beams, the mounting pieces and the cross beams, and the mounting pieces and the longitudinal beams are all detachably connected. The split type heating defroster used in the hub solves the problem that after a fan is installed, a standard cabinet body is too large and cannot enter the hub when the defroster is additionally installed, and has the advantages of being low in material cost, convenient to machine, stable in performance, high in protection grade and the like.

Description

Technical Field

[0001] This utility model belongs to the field of heated refrigerator technology, and in particular relates to a split-type heated refrigerator for use inside a wheel hub. Background Technology

[0002] Wind turbine blades are prone to being covered in ice in low-temperature and high-humidity environments, and this ice is difficult to melt. This problem has long plagued the development and construction of wind turbines in areas of my country prone to freezing rain disasters. Once freezing rain occurs, ice will accumulate on the surface of the wind turbine blades, which will reduce the power generation efficiency of the unit and even cause the unit to shut down. More seriously, the ice will also pose a potential threat to the safety of the unit and the operation and maintenance personnel.

[0003] Specifically, the hazards of wind turbine blade icing mainly include four aspects: reduced power generation, noise generation, damage to the turbine unit, and safety hazards. Icing alters the original aerodynamic shape of the blades, reducing aerodynamic efficiency and thus decreasing power generation. Research shows that blade icing, depending on local climate conditions, can cause a 5%-10% loss in annual power generation for wind turbine units, resulting in significant economic losses. Furthermore, icing abnormally increases aerodynamic noise during operation, causing noise pollution to organisms in the operating area and resulting in ecological damage. Moreover, differences in icing levels among the three turbine units can cause dynamic imbalances in turbine operation, leading to vibrations and even damage to components or the entire turbine. Finally, when icing detaches from the blades, the large area over which it falls and the high speed pose a potential threat to ground structures and people, endangering personal safety and property.

[0004] As climate change intensifies, even regions that rarely experience freezing rain may face the risk of blade icing. Consequently, some installed wind turbines require retrofitting. However, when installing a hub de-icing cabinet after wind turbine installation, standard hub electrical cabinets cannot fit due to the narrow access holes inside the hub. Furthermore, because the de-icing cabinet has a high power rating, it requires housing many high-power electrical components, and the cabinet size cannot be designed to be too small. Therefore, standard hub electrical cabinets cannot meet the technical requirements for retrofitting wind turbines. Utility Model Content

[0005] In view of this, the present invention aims to propose a split-type heating and de-icing cabinet for use inside the wheel hub, so as to solve the problem of inconvenient installation of standard wheel hub electrical cabinets when retrofitting existing wind turbine generator sets.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A hub-mounted split-type heating and de-icing cabinet includes a frame and multiple cabinets arranged in a matrix. Each cabinet is detachably mounted on the frame, and adjacent cabinets are interconnected and detachably connected. The frame includes at least two crossbeams and two longitudinal beams, each with mounting components for mounting the cabinets. The connections between crossbeams, between crossbeams and longitudinal beams, between mounting components and crossbeams, and between mounting components and longitudinal beams are all detachably connected.

[0008] Furthermore, the crossbeam and the longitudinal beam connected to it are arranged in a T-shape.

[0009] Furthermore, three crossbeams are provided, wherein the first crossbeam and the second crossbeam are detachably connected by a connector, and the third crossbeam is provided parallel to the first crossbeam and the second crossbeam; two longitudinal beams are provided at the left and right ends of the third crossbeam, one end of the first longitudinal beam is connected to the third crossbeam and the other end is connected to the first crossbeam, one end of the second longitudinal beam is connected to the third crossbeam and the other end is connected to the second crossbeam.

[0010] Furthermore, a reinforcing member is provided on the third crossbeam at the connection between the first and second crossbeams. One end of the reinforcing member is detachably installed on the third crossbeam, and the other end is detachably connected to the first and second crossbeams respectively.

[0011] Furthermore, the cross-sections of the crossbeams, longitudinal beams, and mounting components are all U-shaped, with the openings of the crossbeams and longitudinal beams facing the housing, and the openings of the mounting components facing the opposite direction to the openings of the crossbeams or longitudinal beams.

[0012] Furthermore, drainage holes are provided on the crossbeams, longitudinal beams, and mounting components.

[0013] Furthermore, the mounting component is provided with connecting bolts for mounting the housing, and observation holes are provided on the crossbeams and longitudinal beams at the positions corresponding to the connecting bolts.

[0014] Furthermore, a sealing structure is provided at the connection between the boxes.

[0015] Furthermore, the enclosure is provided with a removable sealing cover, and at least four conductive door locks are evenly arranged around the sealing cover. The enclosure is provided with a grounding spring that can cooperate with the locking tongue of the conductive door lock.

[0016] Furthermore, both the housing and the sealing cover are equipped with handles.

[0017] Compared with existing technologies, the hub-mounted split-type heating and de-icing cabinet of this utility model has the following advantages:

[0018] This utility model discloses a hub-mounted split-type heating and de-icing cabinet, which solves the problem of standard cabinets being too large to fit into the hub when adding a de-icing cabinet after the wind turbine is installed. It also boasts advantages such as low material cost, convenient processing, stable performance, and high protection level. By adopting a split-structure frame with cabinets arranged in a matrix on the frame, it facilitates the assembly of the de-icing cabinet within the wind turbine hub. The number and size of the cabinets can be arbitrarily increased or decreased to meet the needs of scenarios with limited space and the requirement to install electrical cabinets. Furthermore, by connecting and combining the various cabinets, it can meet the assembly requirements of narrow wind turbine hub entrances and integrate various functions into a single large combined cabinet. The sealing structure between the cabinets ensures the overall airtightness of the assembled cabinets, allowing for the later addition of heating and de-icing electrical equipment of various sizes and power ratings to the wind turbine generator set. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of a split-type heating and de-icing cabinet for use inside a wheel hub, as described in an embodiment of this utility model.

[0021] Figure 2 This is a schematic diagram of the frame of a split-type heating and de-icing cabinet for use inside a wheel hub, as described in an embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the third crossbeam in a split-type heating and de-icing cabinet inside a wheel hub, as described in an embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the inner chamber of a split-type heating and de-icing cabinet for use inside a wheel hub, as described in an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Frame; 2. Box; 3. Sealing cover; 4. Handle; 5. Conductive door lock; 6. First crossbeam; 7. Second crossbeam; 8. Third crossbeam; 9. First longitudinal beam; 10. Second longitudinal beam; 11. Mounting component; 12. Connecting component; 13. Reinforcing component; 14. Connecting bolt; 15. Drain hole; 16. Observation hole; 17. Lock tongue; 18. Grounding spring; 19. Sealing structure; 20. Opening. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] A type of split-type heating and de-icing cabinet used inside the wheel hub, such as Figures 1 to 4 As shown, the device includes a frame 1 and multiple boxes 2 arranged in a matrix. Each box 2 is detachably mounted on the frame 1, and adjacent boxes 2 are interconnected and detachably connected. The frame 1 includes at least two crossbeams and two longitudinal beams. Each crossbeam and longitudinal beam is equipped with mounting components 11 for mounting the boxes 2. The connections between crossbeams, between crossbeams and longitudinal beams, between mounting components 11 and crossbeams, and between mounting components 11 and longitudinal beams are all detachable. These detachable connections can all employ conventional detachable methods such as bolts, which will not be elaborated further here.

[0031] For example, multiple crossbeams and longitudinal beams can be provided to form a detachable frame structure 1, facilitating assembly by moving it into the hub through the maintenance port on the hub. Simultaneously, the housing 2 can be configured according to the number of electrical components, and suitable mounting parts 11 can be provided to assemble the housing 2 onto the frame 1. In actual use, the operator can insert the crossbeams, longitudinal beams, mounting parts 11, and housing 2 into the hub one by one, and assemble them according to their installation positions within the hub, reducing the assembly difficulty of this heated de-icing cabinet on existing wind turbine generator sets. The main innovation of this utility model lies in the structural improvement of the heated de-icing cabinet, without designing improvements to its internal electrical components and circuits. Those skilled in the art can install suitable electrical components inside the housing 2 according to actual needs, which will not be elaborated here.

[0032] Preferably, the crossbeams and the connecting longitudinal beams are arranged in a T-shape. Exemplarily, bolts can be used to connect the crossbeams to each other, the crossbeams to the longitudinal beams, the mounting component 11 to the crossbeams, and the mounting component 11 to the longitudinal beams. Those skilled in the art can also choose other conventional methods according to actual needs, which will not be elaborated here. By arranging the crossbeams and the connecting longitudinal beams in a T-shape, the structural strength and stability at the connection between the crossbeams and longitudinal beams are improved, thereby enhancing the overall stability of the frame 1 and ensuring that this de-icing cabinet, after being installed on the wheel hub, can provide a stable environment for the electrical components inside the cabinet 2.

[0033] In practical applications, three crossbeams are provided. The first crossbeam 6 and the second crossbeam 7 are detachably connected by a connector 12. The third crossbeam 8 is arranged parallel to the first crossbeam 6 and the second crossbeam 7. Two longitudinal beams are provided at the left and right ends of the third crossbeam 8. One end of the first longitudinal beam 9 is connected to the third crossbeam 8, and the other end is connected to the first crossbeam 6. One end of the second longitudinal beam 10 is connected to the third crossbeam 8, and the other end is connected to the second crossbeam 7. For example, the connector 12 can be a U-shaped structural component or a plate. The connector 12 can be conventionally connected to the crossbeams using bolts or other means. By providing the connector 12, the structural strength at the connection between the first crossbeam 6 and the second crossbeam 7 is improved. In addition, the three crossbeams and two longitudinal beams can form an open-shaped frame 1. Compared with other structures, it not only occupies less space but also has high structural stability, which can better meet the installation needs within the wheel hub.

[0034] Preferably, a reinforcing member 13 is provided on the third crossbeam 8 at the connection point between the first crossbeam 6 and the second crossbeam 7. One end of the reinforcing member 13 is detachably mounted on the third crossbeam 8, and the other end is detachably connected to the first crossbeam 6 and the second crossbeam 7 respectively. For example, the reinforcing member 13 can also be a U-shaped structure with the opening facing downwards to prevent water accumulation and to provide stable support for the box body 2. By providing the reinforcing member 13, not only can the structural strength at the connection point between the first crossbeam 6 and the second crossbeam 7 be further improved, but it can also cooperate with the longitudinal beams to form a multi-link connection structure, which is beneficial to improving the overall structural strength of the frame 1.

[0035] Preferably, the cross-sections of the crossbeams, longitudinal beams, and mounting components 11 are all U-shaped. The openings of the crossbeams and longitudinal beams face the housing 2, while the opening of the mounting components 11 faces the opposite direction. Specifically, the sheet metal surface of the U-shaped mounting components 11 faces upward to better support the housing 2. The crossbeams and longitudinal beams, facing downward, not only support the housing 2 but also provide a limiting function, restricting the displacement and vibration of each housing 2 in the rotating environment of the hub, enhancing the overall structural stability of the freezer, and ensuring the stable operation of the electrical components inside the housing 2. Furthermore, by selecting U-shaped structural components, not only can the structural strength of the frame 1 be strengthened, but the weight of the frame 1 can also be reduced, facilitating the assembly of the frame 1 within the hub.

[0036] Preferably, drainage holes 15 are provided on the crossbeams, longitudinal beams, and mounting components 11. By providing drainage holes 15, not only can the weight be reduced, making it easier for workers to transport the equipment from the ground to the large ventilation fan at a height of 100m+, but drainage can also be carried out more quickly, reducing the possibility of corrosion of the frame 1.

[0037] Preferably, the mounting component 11 is provided with connecting bolts 14 for mounting the housing 2, and observation holes 16 are provided on the crossbeams and longitudinal beams at positions corresponding to the connecting bolts 14. Exemplarily, the connecting bolts 14 can be welded to the mounting component 11, and the detachable connection between the four corners of the housing 2 and the frame 1 is achieved by connecting the locking nuts to the connecting bolts 14 on the mounting component 11. Those skilled in the art can also choose other suitable connection methods according to actual needs, which will not be elaborated here. In actual use, since the connecting bolts 14 may loosen and fall off, observation holes 16 are opened at the beams below the connecting bolts 14 to facilitate inspection by operators and also to facilitate reinstallation if the connecting bolts 14 fall off.

[0038] In practical applications, both cabinet 2 and frame 1 can be hot-dip galvanized for corrosion protection to ensure the C3-H corrosion resistance requirements. However, it is necessary to ensure equipotential bonding between each cabinet of the freezer and frame 1 as a whole, and to connect to the fan grounding point via cables to ensure the freezer is connected to the fan. Since cabinet 2 is coated with anti-corrosion paint, it cannot conduct electricity (frame 1 is hot-dip galvanized, which allows conductivity and does not require coating for grounding). Therefore, a coating grounding protection area must be reserved at the connection point between each cabinet 2 and mounting component 11. This area is then connected to the frame 1 via bolts and nuts to ensure the safety of the freezer.

[0039] Preferably, a sealing structure 19 is provided at the connection between the cabinets 2 and the cabinet 2. For example, an opening 20 can be provided at the connection between the cabinets 2 to enable communication between the cabinets 2. A rubber sealing gasket can be provided around the opening 20, and glue can be applied after assembly in the hub to further improve the sealing performance of the connection between the cabinets 2 and the cabinet 2, prevent the electrical components inside the cabinets 2 from being damaged by moisture, and help improve the stability and reliability of the defrosting cabinet operation.

[0040] Preferably, the housing 2 is provided with a removable sealing cover 3, and at least four conductive door locks 5 are evenly arranged around the sealing cover 3. The housing 2 is provided with a grounding spring 18 that can cooperate with the locking tongue 17 of the conductive door lock 5. For example, the grounding spring 18 can be installed on the housing 2 by conventional means such as screws. Both the conductive door lock 5 and the grounding spring 18 can be made of conductive materials such as stainless steel. In actual use, the conductive door lock 5 is in contact with the grounding spring 18 on the housing 2, so that the conductive door lock 5 is connected to the housing 2. The sprayed grounding protection area at the installation location of the sealing cover 3 is connected to the conductive door lock 5, thus connecting the housing 2 and the sealing cover 3 through the conductive door lock 5.

[0041] In practical applications, installing a removable sealing cover 3 on the enclosure 2 facilitates the assembly of electrical components while meeting sealing requirements. Furthermore, by providing a sealing structure 19 at the connection between enclosures 2, the overall sealing performance of the assembled enclosures 2 can be ensured.

[0042] Preferably, both the housing 2 and the sealing cover 3 are provided with handles 4. Exemplarily, the handles 4 can be installed on the housing 2 by conventional means such as screws. By providing handles 4 on the housing 2, it is convenient for operators to move and assemble the housing 2.

[0043] This utility model discloses a hub-mounted split-type heating and de-icing cabinet, which solves the problem of standard cabinets being too large to fit into the hub when adding a de-icing cabinet after the wind turbine is installed. It also boasts advantages such as low material cost, convenient processing, stable performance, and high protection level. By adopting a split-structure frame with cabinets arranged in a matrix on the frame, it facilitates the assembly of the de-icing cabinet within the wind turbine hub. The number and size of the cabinets can be arbitrarily increased or decreased to meet the needs of scenarios with limited space and the requirement to install electrical cabinets. Furthermore, by connecting and combining the various cabinets, it can meet the assembly requirements of narrow wind turbine hub entrances and integrate various functions into a single large combined cabinet. The sealing structure between the cabinets ensures the overall airtightness of the assembled cabinets, allowing for the later addition of heating and de-icing electrical equipment of various sizes and power ratings to the wind turbine generator set.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A split-type heating and de-icing cabinet for use inside a wheel hub, characterized in that: The system includes a frame (1) and multiple boxes (2), which are arranged in a matrix. Each box (2) can be detachably installed on the frame (1). Adjacent boxes (2) are interconnected and detachably connected. The frame (1) includes at least two crossbeams and two longitudinal beams. Each crossbeam and longitudinal beam is provided with a mounting component (11) for installing the box (2). The crossbeams are detachably connected to each other, to each other, to each other, and to each other.

2. The hub-mounted split-type heating and de-icing cabinet according to claim 1, characterized in that: The crossbeam and the longitudinal beam it connects to are arranged in a T-shape.

3. A split-type heating and de-icing cabinet for use inside a wheel hub according to claim 2, characterized in that: Three crossbeams are provided, wherein the first crossbeam (6) and the second crossbeam (7) are detachably connected by a connector (12), and the third crossbeam (8) is provided parallel to the first crossbeam (6) and the second crossbeam (7); two longitudinal beams are provided at the left and right ends of the third crossbeam (8), one end of the first longitudinal beam (9) is connected to the third crossbeam (8) and the other end is connected to the first crossbeam (6), and one end of the second longitudinal beam (10) is connected to the third crossbeam (8) and the other end is connected to the second crossbeam (7).

4. A split-type heating and de-icing cabinet for use inside a wheel hub according to claim 3, characterized in that: The third crossbeam (8) is provided with a reinforcing member (13) at the connection between the first crossbeam (6) and the second crossbeam (7). One end of the reinforcing member (13) is detachably installed on the third crossbeam (8), and the other end is detachably connected to the first crossbeam (6) and the second crossbeam (7) respectively.

5. A split-type heating and de-icing cabinet for use inside a wheel hub according to any one of claims 1-4, characterized in that: The cross-sections of the crossbeams, longitudinal beams, and mounting components (11) are all U-shaped. The openings of the crossbeams and longitudinal beams face the box body (2), and the opening of the mounting components (11) faces the opposite direction to the opening of the crossbeams or longitudinal beams.

6. A split-type heating and de-icing cabinet for use inside a wheel hub according to claim 5, characterized in that: Drainage holes (15) are provided on the crossbeams, longitudinal beams and mounting components (11).

7. A split-type heating and de-icing cabinet for use inside a wheel hub according to claim 1, characterized in that: The mounting component (11) is provided with connecting bolts (14) for mounting the box body (2), and observation holes (16) are provided on the crossbeam and longitudinal beam at the positions corresponding to the connecting bolts (14).

8. A split-type heating and de-icing cabinet for use inside a wheel hub according to claim 1, characterized in that: The connection between the boxes (2) and the boxes (2) is provided with a sealing structure (19).

9. A split-type heating and de-icing cabinet for use inside a wheel hub according to claim 1, characterized in that: The box (2) is provided with a removable sealing cover (3), and at least four conductive door locks (5) are evenly arranged around the sealing cover (3). The box (2) is provided with a grounding spring (18) that can cooperate with the locking tongue (17) of the conductive door lock (5).

10. A split-type heating and de-icing cabinet for use inside a wheel hub according to claim 9, characterized in that: Both the housing (2) and the sealing cover (3) are equipped with handles (4).

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