Dehumidification and rust prevention device in electrical cabinet of offshore wind turbine generator

Abstract

The utility model relates to the technical field of electrical cabinet equipment, in particular to a dehumidification and rust prevention device in an electrical cabinet of an offshore wind turbine generator, which comprises an electrical cabinet body, a cabinet door is movably mounted at the front end of the electrical cabinet body through a hinge, and a sliding device is jointly slidably connected between the middle of a left box wall and the middle of a right box wall of the electrical cabinet body. The lower part of the left box wall and the lower part of the right box wall of the electrical cabinet body are jointly and fixedly connected with a moisture-proof device, and the right part of the front end of the cabinet door is fixedly connected with a handle; the moisture-proof device comprises a connecting plate, and the connecting plate is fixedly connected to the lower part of the inner box wall of the electrical cabinet body. According to the dehumidification and rust prevention device in the electrical cabinet of the offshore wind turbine generator, the moisture-proof device, the sliding device and the fixing assembly are arranged, a threaded connection mode is adopted, disassembly and assembly are convenient, cables are arranged and installed in order one by one, the maintenance time is greatly shortened, the electrical cabinet is effectively prevented from being affected with damp and rusted for a long time, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical cabinet equipment, in particular to a dehumidification and rust prevention device in an electrical cabinet of an offshore wind turbine generator set. Background Art

[0002] In recent years, offshore wind power generation has become an important direction for the development of renewable energy worldwide. According to my country's "12th Five-Year Plan for Renewable Energy", by 2020, the installed capacity of offshore wind power will reach 30 million KW, and offshore wind power will become an important power source for the power system. However, the construction, operation and management of offshore wind power and the reliability of wind power equipment are issues that cannot be ignored. There are at least the following disadvantages in the use of existing electrical cabinets for offshore wind turbines: the existing electrical cabinets are humid or set outdoors, and water vapor will enter the electrical cabinet from the air inlet, which will cause moisture inside the electrical cabinet. The interior of the electrical cabinet is mostly modules with various electronic components. If these components work in a humid environment for a long time, they are prone to short circuits and failures. The cabinet is usually made of iron material, which is easy to rust after being exposed to moisture for a long time, greatly reducing its service life; and the wiring inside the electrical cabinet is relatively messy, which is not conducive to maintenance and has poor use effect; therefore, we introduce a dehumidification and rust prevention device for the electrical cabinet of an offshore wind turbine. Utility Model Content

[0003] The main purpose of the utility model is to provide a dehumidification and rust prevention device in an electrical cabinet of an offshore wind turbine unit, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A dehumidification and rust prevention device in an electrical cabinet of an offshore wind turbine generator system, comprising an electrical cabinet, a cabinet door is movably installed at the front end of the electrical cabinet through a hinge, a transparent cover is fixedly connected to the front end of the cabinet door, a base is fixedly connected to the lower end of the electrical cabinet, a slide groove is provided in the middle of the left box wall and the middle of the right box wall of the electrical cabinet, a sliding device is slidably connected between the middle of the left box wall and the middle of the right box wall of the electrical cabinet, a moisture-proof device is fixedly connected to the lower part of the left box wall and the lower part of the right box wall of the electrical cabinet, and a handle is fixedly connected to the front right part of the cabinet door;

[0006] The moisture-proof device includes a connecting plate, the lower left part and the lower right part of the connecting plate are fixedly connected with fixed frame plates, the front end of the fixed frame plate on the left is provided with a temperature sensor, the lower ends of the two fixed frame plates are interspersed and fixedly connected with fans, a fixing rod is commonly fixedly connected between the left and right ends of the two fixed frame plates, a plurality of ventilation slots are opened at the upper end of the connecting plate, a plurality of drying rods are placed at the upper end of the connecting plate, and the connecting plate is fixedly connected to the lower part of the inner box wall of the electrical cabinet.

[0007] Preferably, the sliding device includes a slide plate, a mounting plate is fixedly connected to the rear upper end of the slide plate, a partition plate is fixedly connected to the lower front end of the mounting plate, a connecting frame is fixedly connected to the middle front end of the mounting plate, a lower clamping plate is fixedly connected to the middle upper end of the slide plate, a plurality of lower clamping grooves are opened at the upper end of the lower clamping plate, a lower anti-slip pad is fixedly connected to each of the plurality of lower clamping grooves, a hand buckle groove is opened at the middle front end of the slide plate, a fixing component is threadedly connected to the middle upper end of the connecting frame, and the slide plate is slidably connected to the middle inner box wall of the electrical cabinet.

[0008] Preferably, the fixing assembly includes a screw rod, the upper end of which is fixedly connected to a screw block, the lower end of which is movably connected to an upper clamping plate via a bearing, a plurality of upper clamping grooves are opened at the lower end of the upper clamping plate, upper rubber pads are fixedly connected in the plurality of upper clamping grooves, and the screw rod is threadedly connected to the middle part of the upper end of the connecting frame.

[0009] Preferably, the structure of the upper clamping plate is the same as that of the lower clamping plate and they are symmetrically distributed up and down.

[0010] Preferably, the plurality of upper clamping grooves are distributed laterally and equidistantly.

[0011] Preferably, the left and right sides of the slide plate are respectively slidably connected in the slide groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. By setting a moisture-proof device, a number of drying rods are set in the connecting plate. The drying rods have the function of absorbing moisture. When the drying rods 35 are saturated with moisture, two sets of fans are started to air-dry the drying rods and then they can be recycled. When the temperature sensor detects that the temperature value inside the electrical cabinet is higher than the set value and the humidity value is lower than the set value, the PLC controller controls the two fans to work separately. The fans start to rotate and fan, and the hot air in the electrical cabinet can be discharged from the bottom groove of the electrical cabinet, effectively preventing the electrical cabinet from being damp and rusted for a long time and extending the service life.

[0014] 2. By setting up sliding devices and fixing components, the electrical equipment modules are installed one by one on the front end of the mounting plate, and the cables are placed one by one on the lower clamping grooves. By rotating the hand-held screw block, the screw rod is driven to move up and down, so that the upper clamping plate moves downward and is pressed and fixed on the upper outer surface of the cable. The threaded connection method is adopted, which is easy to disassemble and assemble. Since several upper clamping grooves are distributed one by one at equal intervals horizontally, they can be installed one by one in an orderly manner, which greatly reduces the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a dehumidification and rust prevention device in an electrical cabinet of an offshore wind turbine unit according to the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of a moisture-proof device of a dehumidification and rust-proof device in an electrical cabinet of an offshore wind turbine unit according to the utility model;

[0017] Figure 3 It is a schematic diagram of the overall structure of a sliding device of a dehumidification and rust prevention device in an electrical cabinet of an offshore wind turbine unit according to the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the overall structure of the fixing components of the dehumidification and rust prevention device in the electrical cabinet of an offshore wind turbine unit.

[0019] In the figure: 1. electrical cabinet; 2. base; 3. moisture-proof device; 4. cabinet door; 5. transparent cover; 6. slide groove; 7. sliding device; 8. handle; 31. temperature sensor; 32. fixed frame plate; 33. fixed rod; 34. connecting plate; 35. drying rod; 36. fan; 37. ventilation slot; 71. slide plate; 72. partition; 73. lower clamping plate; 74. lower clamping groove; 75. mounting plate; 76. connecting frame; 77. hand buckle groove; 78. fixing assembly; 79. lower anti-slip pad; 781. upper clamping plate; 782. screw block; 783. screw; 784. upper clamping groove; 785. upper rubber pad. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] A dehumidification and rust prevention device in an electrical cabinet of an offshore wind turbine generator system, comprising an electrical cabinet 1, a cabinet door 4 is movably mounted on the front end of the electrical cabinet 1 through a hinge, a transparent cover 5 is fixedly connected to the front end of the cabinet door 4, a base 2 is fixedly connected to the lower end of the electrical cabinet 1, a slide groove 6 is provided in the middle of the left box wall and the middle of the right box wall of the electrical cabinet 1, a sliding device 7 is slidably connected between the middle of the left box wall and the middle of the right box wall of the electrical cabinet 1, a moisture-proof device 3 is fixedly connected to the lower part of the left box wall and the lower part of the right box wall of the electrical cabinet 1, and a handle 8 is fixedly connected to the right part of the front end of the cabinet door 4;

[0025] The moisture-proof device 3 includes a connecting plate 34, the lower left and right parts of the connecting plate 34 are fixedly connected with fixed frame plates 32, the front end of the left fixed frame plate 32 is provided with a temperature sensor 31, the lower ends of the two fixed frame plates 32 are interspersed and fixedly connected with fans 36, the left and right ends of the two fixed frame plates 32 are commonly fixedly connected with a fixing rod 33, the upper end of the connecting plate 34 is provided with a plurality of ventilation slots 37, the upper end of the connecting plate 34 is provided with a plurality of drying rods 35, and the connecting plate 34 is fixedly connected to the lower part of the inner box wall of the electrical cabinet 1.

[0026] The sliding device 7 in this embodiment includes a slide plate 71, the upper rear part of the slide plate 71 is fixedly connected to a mounting plate 75, the lower front end of the mounting plate 75 is fixedly connected to a partition 72, the middle front end of the mounting plate 75 is fixedly connected to a connecting frame 76, the middle upper end of the slide plate 71 is fixedly connected to a lower clamping plate 73, the upper end of the lower clamping plate 73 is provided with a plurality of lower clamping grooves 74, and the plurality of lower clamping grooves 74 are fixedly connected to lower anti-skid pads 79, the middle front end of the slide plate 71 is provided with a buckle groove 77, the middle upper end of the connecting frame 76 is threadedly connected to a fixing assembly 78, and the slide plate 71 is slidably connected to the middle of the inner box wall of the electrical cabinet 1; the fixing assembly 78 includes a screw rod 783, the upper end of the screw rod 783 is fixedly connected to a screw block 782, the lower end of the screw rod 783 is movably connected to an upper clamping plate 781 through a bearing, the lower end of the upper clamping plate 781 is provided with a plurality of upper clamping grooves 784, and the plurality of upper clamping grooves 784 are fixedly connected to the lower anti-skid pads 79. The upper rubber pad 785 is fixedly connected inside, and the screw rod 783 is threadedly connected to the middle part of the upper end of the connecting frame 76; the structure of the upper clamping plate 781 is the same as that of the lower clamping plate 73 and is symmetrically distributed up and down; a plurality of upper clamping grooves 784 are distributed one by one with equal distance in the horizontal direction; the left and right sides of the slide plate 71 are respectively slidably connected in the slide groove 6; through a plurality of upper clamping grooves 784, which are distributed one by one with equal distance in the horizontal direction, the hand-held screw block 782 is rotated to drive the screw rod 783 to move up and down, so that the upper clamping plate 781 moves downward and is pressed and fixed on the upper outer surface of the cable, and a threaded connection method is adopted for easy disassembly and assembly, and a plurality of upper clamping grooves 784 are fixedly connected with upper rubber pads 785, which are made of flexible rubber material and have a certain resistance, further enhancing the stability of fixing multiple cables, and a plurality of upper clamping grooves 784 are distributed one by one with equal distance in the horizontal direction, so that they are arranged and installed one by one in an orderly manner, which greatly reduces the maintenance time.

[0027] It should be noted that the utility model is a dehumidification and rust prevention device in an electrical cabinet of an offshore wind turbine. During use, the electrical equipment modules are installed one by one on the front end of the mounting plate 75, and the cables are placed one by one on the lower clamping grooves 74. By rotating the hand-held screw block 782, the screw rod 783 is driven to move up and down, so that the upper clamping plate 781 moves downward and is pressed and fixed on the upper outer surface of the cable. A threaded connection method is adopted, which is convenient for disassembly and assembly. Since a plurality of upper clamping grooves 784 are distributed one by one at equal intervals laterally, they are arranged and installed one by one in an orderly manner, which greatly reduces the maintenance time. By setting a plurality of lower clamping grooves 74 and a plurality of upper rubber pads 785, a flexible rubber material is adopted, which has a certain resistance, and further enhances the stability of fixing multiple cables. The slide plate 71 is slidably connected to the electrical cabinet 1. A sliding connection is adopted in the middle part of the inner box wall, which is convenient for extracting and repairing the circuit and easy to operate. It is fixedly installed on the lower part of the inner box wall of the electrical cabinet 1 through a connecting plate 34. A plurality of drying rods 35 are arranged in the connecting plate 34. The plurality of drying rods 35 have the function of absorbing moisture. When the plurality of drying rods 35 are saturated with moisture, two sets of fans 36 are started to air-dry the plurality of drying rods 35 and then they can be recycled. When the temperature sensor 31 detects that the internal temperature value of the electrical cabinet 1 is higher than the set value and the humidity value is lower than the set value, the PLC controller controls the two fans 36 to work separately, and the fans 36 start to rotate and fan, so as to discharge the hot air in the electrical cabinet 1 from the bottom groove of the electrical cabinet 1, thereby effectively preventing the electrical cabinet 1 from being rusted due to moisture for a long time and extending the service life.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A dehumidification and rust prevention device in an electrical cabinet of an offshore wind turbine, comprising an electrical cabinet (1), characterized in that: The front end of the electrical cabinet (1) is movably provided with a cabinet door (4) via a hinge, the front end of the cabinet door (4) is fixedly connected to a transparent cover (5), the lower end of the electrical cabinet (1) is fixedly connected to a base (2), the middle of the left box wall and the middle of the right box wall of the electrical cabinet (1) are both provided with a slide groove (6), the middle of the left box wall and the middle of the right box wall of the electrical cabinet (1) are slidably connected to a sliding device (7), the lower part of the left box wall and the lower part of the right box wall of the electrical cabinet (1) are fixedly connected to a moisture-proof device (3), and the right part of the front end of the cabinet door (4) is fixedly connected to a handle (8); The moisture-proof device (3) comprises a connecting plate (34), the lower left part and the lower right part of the connecting plate (34) are fixedly connected to a fixed frame plate (32), the front end of the left fixed frame plate (32) is provided with a temperature sensor (31), the lower ends of the two fixed frame plates (32) are interlaced and fixedly connected with a fan (36), the left and right ends of the two fixed frame plates (32) are commonly fixedly connected with a fixing rod (33), the upper end of the connecting plate (34) is provided with a plurality of ventilation slots (37), the upper end of the connecting plate (34) is provided with a plurality of drying rods (35), and the connecting plate (34) is fixedly connected to the lower part of the inner box wall of the electrical cabinet (1).

2. The dehumidification and rust prevention device in the electrical cabinet of an offshore wind turbine according to claim 1, characterized in that: The sliding device (7) comprises a slide plate (71), the upper rear portion of the slide plate (71) is fixedly connected to a mounting plate (75), the lower front portion of the mounting plate (75) is fixedly connected to a partition plate (72), the middle front portion of the mounting plate (75) is fixedly connected to a connecting frame (76), the middle upper portion of the slide plate (71) is fixedly connected to a lower clamping plate (73), the upper end of the lower clamping plate (73) is provided with a plurality of lower clamping grooves (74), and the plurality of lower clamping grooves (74) are fixedly connected to lower anti-slip pads (79), the middle front portion of the slide plate (71) is provided with a hand-gripping groove (77), the middle upper portion of the connecting frame (76) is threadedly connected to a fixing assembly (78), and the slide plate (71) is slidably connected to the middle inner wall of the electrical cabinet (1).

3. The dehumidification and rust prevention device in the electrical cabinet of an offshore wind turbine according to claim 2, characterized in that: The fixing assembly (78) includes a screw rod (783), the upper end of which is fixedly connected to a screw block (782), the lower end of which is movably connected to an upper clamping plate (781) via a bearing, a plurality of upper clamping grooves (784) formed at the lower end of the upper clamping plate (781), and upper rubber pads (785) fixedly connected in the plurality of upper clamping grooves (784), and the screw rod (783) is threadedly connected to the middle portion of the upper end of the connecting frame (76).

4. The dehumidification and rust prevention device in the electrical cabinet of an offshore wind turbine according to claim 3, characterized in that: The structure of the upper clamping plate (781) is the same as that of the lower clamping plate (73) and is symmetrically distributed up and down.

5. The dehumidification and rust prevention device in the electrical cabinet of an offshore wind turbine according to claim 3, characterized in that: The plurality of upper clamping grooves (784) are distributed laterally and equidistantly.

6. The dehumidification and rust prevention device in the electrical cabinet of an offshore wind turbine according to claim 2, characterized in that: The left and right sides of the slide plate (71) are respectively slidably connected in the slide groove (6).

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