Wind turbine generator monitoring device

Abstract

The utility model relates to the technical field of fan monitoring devices, in particular to a wind turbine generator monitoring device which comprises a sliding rail, a fixing frame, a first driving mechanism, a second driving mechanism and a first monitoring mechanism used for monitoring a heat source. The first driving mechanism is arranged on the sliding rail, the power output end of the first driving mechanism is connected with the fixing frame, the first monitoring mechanism is rotationally connected to the fixing frame, the second driving mechanism is arranged on the fixing frame, and the power output end of the second driving mechanism is connected with the first monitoring mechanism. The first driving mechanism and the second driving mechanism drive the first monitoring mechanism to translate or rotate, the monitoring range covers the interior of the cabin of the wind turbine, the monitoring is more comprehensive, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine monitoring devices, and more specifically, to a wind turbine monitoring device. Background Art

[0002] A wind turbine is generally composed of a wind rotor, a nacelle, a generator (including devices), a direction regulator (tail wing), a tower, a speed limiting safety mechanism and an energy storage device. The generator of a wind turbine is usually installed in the nacelle of the wind turbine.

[0003] During operation, the generator inside the cabin of an existing wind turbine easily generates heat. High temperature will increase the resistance of the internal circuit of the generator, causing the temperature of the wind turbine cabin to rise sharply. Especially in hot weather, it is easy to cause the internal motor to burn out or even cause a fire. Therefore, it is extremely necessary to monitor the temperature of the wind turbine cabin equipment and whether a fire has occurred.

[0004] The prior art Chinese patent CN202320655136.0 discloses a wind turbine fault information collection device, including a wind turbine nacelle and a box body, wherein two mounting plates are symmetrically fixedly connected to the lower sides of the box body, an air outlet pipe is longitudinally penetrated and fixedly connected to one side of the bottom of the box body, and an air inlet pipe is longitudinally penetrated and fixedly connected to the other side of the bottom of the box body, and the top of the wind turbine nacelle is respectively penetrated by longitudinal holes for the air outlet pipe and the air inlet pipe to pass through and are adapted to each other, and the bottom ends of the air outlet pipe and the air inlet pipe respectively pass through the corresponding perforations and extend into the interior of the wind turbine nacelle, and the temperature signal of the wind turbine nacelle is collected and monitored by a temperature sensor, and the concentration inside the wind turbine nacelle is collected and monitored by a smoke sensor, thereby realizing real-time temperature monitoring of the wind turbine nacelle and monitoring the smoke concentration inside the wind turbine nacelle to confirm whether a fire has occurred. However, the device is arranged outside the wind turbine and detects whether a fire has occurred through pipes and smoke sensors. The monitoring range is small and the monitoring information is delayed. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the existing fault information collection device with a small monitoring range, and to propose a wind turbine monitoring device, which can be moved inside the wind turbine cabin to monitor heat sources, has a wide monitoring range, and can detect safety hazards in a timely manner.

[0006] A wind turbine monitoring device according to the present technical solution includes a slide rail, a fixed frame, a first drive mechanism, a second drive mechanism, and a first monitoring mechanism for monitoring a heat source. The fixed frame is slidably connected to the bottom of the slide rail, the first drive mechanism is arranged on the slide rail, and the power output end of the first drive mechanism is connected to the fixed frame, the first monitoring mechanism is rotatably connected to the fixed frame, the second drive mechanism is arranged on the fixed frame, and the power output end of the second drive mechanism is connected to the first monitoring mechanism.

[0007] In this technical solution, the slide rail is hoisted at the top of the cabin, the first driving mechanism can drive the fixed frame to slide linearly along the slide rail, and the sliding stroke is adapted to the internal length of the cabin. The second driving mechanism can drive the fixed frame to rotate so that the first monitoring mechanism can scan all positions in the cabin in all directions. The first monitoring mechanism can monitor the temperature of various positions inside the cabin and issue an alarm when the temperature exceeds the range. The monitoring range of the device covers the interior of the cabin, which improves the flexibility of monitoring and can achieve comprehensive monitoring of the interior of the wind turbine cabin, so that maintenance personnel can discover safety hazards in the first time and inspect and maintain the wind turbine, thereby ensuring the stable operation and safety performance of the wind turbine.

[0008] As a preferred solution, in order to install the first monitoring mechanism, the fixed frame is an inverted U-shaped structure, and a monitoring shell is provided on the fixed frame. A rotating shaft is provided at both ends of the monitoring shell, and the two rotating shafts are rotatably connected to the two sides of the fixed frame respectively. The power output end of the second driving mechanism passes through the fixed frame and is connected to the rotating shaft at one end of the monitoring shell. The first monitoring mechanism is fixed to the bottom of the monitoring shell, and the monitoring shell can be flexibly rotated under the support of the fixed frame, so that the first monitoring mechanism can cover the monitoring area more comprehensively and improve the monitoring efficiency and accuracy. This structural design takes into account the stability and reliability of the first monitoring mechanism and the flexibility of operation, providing a strong guarantee for achieving efficient monitoring.

[0009] As a preferred solution, in order to improve the accuracy of monitoring, the interior of the monitoring shell is provided with a accommodating cavity, and the accommodating cavity is provided with a second monitoring mechanism for monitoring the smoke concentration. The top and bottom of the monitoring shell are respectively provided with an air outlet and an air inlet connected to the accommodating cavity. The air in the cabin enters the accommodating cavity from the air inlet and is monitored by the second monitoring mechanism to determine whether a dangerous situation occurs. The air is then discharged from the air outlet to realize internal circulation.

[0010] As a preferred solution, in order to accelerate air flow and improve the efficiency and accuracy of smoke concentration monitoring, a fan is provided in the accommodating chamber.

[0011] As a preferred solution, in order to install the second monitoring mechanism and the fan, a first partition and a second partition arranged in sequence are provided in the accommodating chamber, the fan is installed on the first partition, and the second monitoring mechanism is installed on the second partition. The first partition and the second partition respectively separate the interior of the accommodating chamber, thereby optimizing the air flow channel inside the accommodating chamber, so that all the air entering from the air inlet enters the second monitoring mechanism, thereby improving the accuracy of monitoring.

[0012] As a preferred solution, in order to increase the air intake, the air inlet includes a plurality of air holes provided at the bottom of the monitoring shell and connected to the accommodating cavity. The plurality of air holes are evenly distributed and can filter impurities such as dust.

[0013] As a preferred solution, in order to promptly eliminate safety hazards and prevent the occurrence of fire, a fire extinguisher is connected to the rotating shaft at the other end of the monitoring shell. The fire extinguisher can be translated or rotated under the drive of the first driving mechanism and the second driving mechanism, covering the entire interior of the cabin, and can cooperate with the first monitoring mechanism and the second monitoring mechanism to extinguish the fire in time.

[0014] As a preferred solution, the monitoring shell is a cylindrical structure, the monitoring shell has a circular arc surface, the air hole is arranged on the circular arc surface, and the fixed frame is provided with a brush tangent to the circular arc surface. When the monitoring shell rotates, the air hole can be cleaned by the brush to prevent impurities from adhering to and clogging the air hole and affecting the air circulation.

[0015] As a preferred solution, in order to prevent the brush from interfering with the movement of the first monitoring mechanism, connecting parts are respectively provided on both sides of the fixed frame, and two brushes are provided. Each brush is rotatably connected to each connecting part, and a reset spring is also connected between the connecting part and the brush. The two brushes are arranged in a line. When the monitoring housing drives the first monitoring mechanism to rotate, the first monitoring mechanism pushes the two brushes to both sides, and then the two brushes are reset under the tension of the reset spring.

[0016] As a preferred solution, in order to realize temperature monitoring and smoke concentration monitoring in the cabin, the first monitoring mechanism is an infrared temperature sensor, and the second monitoring mechanism is a smoke sensor. The monitoring accuracy can be improved by superimposing temperature and smoke concentration monitoring.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The wind turbine monitoring device of the utility model drives the first monitoring mechanism to translate and rotate through the first driving mechanism and the second driving mechanism to monitor heat sources at various positions inside the cabin. The monitoring range covers the interior of the cabin, and the monitoring is more comprehensive and safer.

[0019] 2. By adding a second monitoring mechanism on the monitoring shell to monitor the smoke concentration, the monitoring accuracy is improved. Under the action of the fan, air quickly enters from the air inlet, enters the second monitoring mechanism to monitor the smoke concentration in the air, and then flows out from the air outlet, accelerating the air flow and improving the monitoring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a wind turbine monitoring device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the installation of the monitoring housing;

[0022] Figure 3 It is a cross-sectional schematic diagram of the monitoring shell;

[0023] Figure 4 yes Figure 3 A partial enlarged view of part A;

[0024] Figure 5 It is a structural diagram of Example 2.

[0025] In the figure: slide rail 1; fixing frame 2; first drive mechanism 3; second drive mechanism 4; first monitoring mechanism 5; second monitoring mechanism 6; monitoring housing 7; accommodating chamber 71; rotating shaft 72; air inlet 73; air outlet 74; first partition 75; second partition 76; fan 77; fire extinguisher 8; brush 9; connecting piece 91; return spring 92. DETAILED DESCRIPTION

[0026] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0029] Example 1:

[0030] like Figure 1 As shown, this embodiment provides a wind turbine monitoring device, including a slide rail 1, a fixed frame 2, a first drive mechanism 3, a second drive mechanism 4 and a first monitoring mechanism 5 for monitoring a heat source, wherein the fixed frame 2 is slidably connected to the bottom of the slide rail 1, the first drive mechanism 3 is arranged on the slide rail 1 and the power output end of the first drive mechanism 3 is connected to the fixed frame 2, the first monitoring mechanism 5 is rotatably connected to the fixed frame 2, the second drive mechanism 4 is arranged on the fixed frame 2 and the power output end of the second drive mechanism 4 is connected to the first monitoring mechanism 5.

[0031] The first monitoring mechanism 5 includes at least one thermal imager for capturing images of the heat distribution generated during the operation of the wind turbine. The second driving mechanism 4 is capable of driving the first monitoring mechanism 5 to scan in the horizontal direction to cover the entire monitoring area of ​​the wind turbine. In addition, the device also includes a control unit, which is connected to the first driving mechanism 3 and the second driving mechanism 4 and is used to control the movement of the driving mechanisms to ensure that the first monitoring mechanism 5 can accurately monitor the heat source of the wind turbine. In this way, the operating status of the wind turbine can be monitored in real time, and abnormal conditions such as overheating can be discovered in a timely manner, thereby improving the operating efficiency and safety of the wind turbine.

[0032] In this embodiment, the slide rail 1 is installed on the top of the cabin. The slide rail 1 includes a transmission screw, a polished rod and a slider. The slider is inserted into the polished rod and is threadedly connected to the transmission screw. The power output end of the first drive mechanism 3 is connected to the transmission screw. The fixed frame 1 is fixed to the bottom of the slider. The first drive mechanism 3 and the second drive mechanism 4 are both stepper motors, which have the characteristics of high-precision positioning and can control the rotation angle more accurately, thereby controlling the translation position and rotation position of the first monitoring mechanism 5.

[0033] In this embodiment, the device is arranged inside the nacelle, without increasing the external volume of the wind turbine, thereby avoiding increasing wind resistance.

[0034] Specifically, such as Figure 2 、 3 As shown, the fixing frame 2 is an inverted U-shaped structure, and a monitoring shell 7 is provided on the fixing frame 2. Rotating shafts 72 are respectively provided at both ends of the monitoring shell 7. The two rotating shafts 72 are respectively connected to the two sides of the fixing frame 2 for rotation. The power output end of the second driving mechanism 4 passes through the fixing frame 2 and is connected to the rotating shaft 72 at one end of the monitoring shell 7. The first monitoring mechanism 5 is fixed to the bottom of the monitoring shell 7.

[0035] In this embodiment, both sides of the fixing frame 2 extend downward to form connecting portions, each connecting portion is provided with a mounting hole, and each rotating shaft 72 is rotatably connected to the mounting hole.

[0036] Specifically, such as Figure 3 As shown, the interior of the monitoring shell 7 has a accommodating chamber 71, and the accommodating chamber 71 is provided with a second monitoring mechanism 6 for monitoring the smoke concentration. The top and bottom of the monitoring shell 7 are respectively provided with an air outlet 74 and an air inlet 73 connected to the accommodating chamber 71, and the accommodating chamber 71 is provided with a fan 77.

[0037] In this embodiment, the fan 77 generates a negative pressure airflow, so that the air inside the cabin quickly enters the accommodating cavity 71 from the air inlet 73. At this time, the second monitoring mechanism 6 monitors the air and transmits the smoke concentration to the background management center in a timely manner through the wireless transmission module, so that the background management personnel can understand and handle it in time.

[0038] Specifically, such as Figure 3 As shown, a first partition plate 75 and a second partition plate 76 are provided in the accommodating chamber 71 , which are spaced apart in sequence. The fan 77 is installed on the first partition plate 75 , and the second monitoring mechanism 6 is installed on the second partition plate 76 .

[0039] In this embodiment, the first partition plate 75 and the second partition plate 76 are respectively provided with a flow opening in the middle thereof, and the fan 77 and the second monitoring mechanism 6 are respectively installed on the corresponding flow openings.

[0040] Specifically, such as Figure 3 As shown, the air inlet 73 includes a plurality of air holes provided at the bottom of the monitoring housing 7 and communicating with the accommodating cavity 71 , and the plurality of air holes are evenly distributed.

[0041] In this embodiment, the air holes can filter impurities such as dust, thereby improving the accuracy of monitoring.

[0042] Specifically, the first monitoring mechanism 5 is an infrared temperature sensor, and the second monitoring mechanism 6 is a smoke sensor.

[0043] In this embodiment, the infrared temperature sensor and the smoke sensor are respectively connected to the wireless transmission module to transmit the monitoring information to the background management center in a timely manner so that the management personnel can grasp the internal situation of the cabin in a timely manner.

[0044] Example 2:

[0045] This embodiment is similar to embodiment 1, except that, in this embodiment, Figure 5 As shown, a fire extinguisher 8 is connected to the rotating shaft 72 at the other end of the monitoring housing 7.

[0046] In this embodiment, the fire extinguisher 8 is connected to the wireless transmission module. The fire extinguisher 8 can rotate along with the monitoring shell 7 under the drive of the second drive mechanism 4 and translate under the drive of the first drive mechanism 3. The management personnel can remotely lock the fire point inside the cabin and spray the fire extinguishing medium to achieve remote and precise fire extinguishing.

[0047] Example 3:

[0048] This embodiment is similar to embodiment 1, except that, in this embodiment, Figure 3 、 4 As shown, the monitoring housing 7 is a cylindrical structure, the monitoring housing 7 has an arc surface, the air holes are provided on the arc surface, and the fixing frame 2 is provided with a brush 9 tangent to the arc surface.

[0049] In this embodiment, when the monitoring housing 7 rotates, the brush 9 can clean the air holes to prevent impurities from adhering to and clogging the air holes, thereby affecting the circulation of air.

[0050] Specifically, such as Figure 4 As shown, connecting pieces 91 are provided on both sides of the fixing frame 2, and two brushes 9 are provided. Each brush 9 is rotatably connected to each connecting piece 91, and a reset spring 92 is also connected between the connecting piece 91 and the brush 9. The two brushes 9 are arranged in a line. When the monitoring housing drives the first monitoring mechanism 5 to rotate, the first monitoring mechanism 5 pushes the two brushes 9 to both sides.

[0051] In this embodiment, a gap is provided between two adjacent brushes 9. In order to avoid motion interference between the brush 9 and the first monitoring mechanism 5, the first monitoring mechanism 5 pushes the brush 9 to rotate when passing through the brush holder 61, so that the first monitoring mechanism 5 can rotate normally. The brush 9 is then reset by the tensioning force of the reset spring 92, so that the adjacent brushes 9 remain on the same horizontal line and fit the monitoring shell 7.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0053] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A wind turbine monitoring device, characterized in that: The invention comprises a slide rail (1), a fixed frame (2), a first driving mechanism (3), a second driving mechanism (4) and a first monitoring mechanism (5) for monitoring a heat source, wherein the fixed frame (2) is slidably connected to the bottom of the slide rail (1), the first driving mechanism (3) is arranged on the slide rail (1) and the power output end of the first driving mechanism (3) is connected to the fixed frame (2), the first monitoring mechanism (5) is rotatably connected to the fixed frame (2), the second driving mechanism (4) is arranged on the fixed frame (2) and the power output end of the second driving mechanism (4) is connected to the first monitoring mechanism (5).

2. A wind turbine monitoring device according to claim 1, characterized in that: The fixing frame (2) is an inverted U-shaped structure. A monitoring shell (7) is provided on the fixing frame (2). Rotating shafts (72) are provided at both ends of the monitoring shell (7). The two rotating shafts (72) are rotatably connected to the two sides of the fixing frame (2). The power output end of the second driving mechanism (4) passes through the fixing frame (2) and is connected to the rotating shaft (72) at one end of the monitoring shell (7). The first monitoring mechanism (5) is fixed to the bottom of the monitoring shell (7).

3. A wind turbine monitoring device according to claim 2, characterized in that: The monitoring housing (7) has an accommodating chamber (71) inside, a second monitoring mechanism (6) for monitoring smoke concentration is provided in the accommodating chamber (71), and an air outlet (74) and an air inlet (73) communicating with the accommodating chamber (71) are provided at the top and bottom of the monitoring housing (7), respectively.

4. A wind turbine monitoring device according to claim 3, characterized in that: A fan (77) is provided in the accommodating chamber (71).

5. A wind turbine monitoring device according to claim 4, characterized in that: A first partition plate (75) and a second partition plate (76) are provided in the accommodating chamber (71), the fan (77) is installed on the first partition plate (75), and the second monitoring mechanism (6) is installed on the second partition plate (76).

6. A wind turbine monitoring device according to claim 3, characterized in that: The air inlet (73) comprises a plurality of air holes provided at the bottom of the monitoring housing (7) and communicating with the accommodating cavity (71), wherein the plurality of air holes are evenly distributed.

7. A wind turbine monitoring device according to claim 2, characterized in that: A fire extinguisher (8) is connected to the rotating shaft (72) at the other end of the monitoring housing (7).

8. A wind turbine monitoring device according to claim 6, characterized in that: The monitoring housing (7) is a cylindrical structure, and has an arc surface. The air holes are provided on the arc surface, and a brush (9) tangent to the arc surface is provided on the fixing frame (2).

9. A wind turbine monitoring device according to claim 8, characterized in that: Connecting members (91) are respectively provided on both sides of the fixing frame (2), and two brushes (9) are provided. Each brush (9) is rotatably connected to each connecting member (91), and a return spring (92) is further connected between the connecting member (91) and the brush (9). The two brushes (9) are arranged in a line.

10. A wind turbine monitoring device according to claim 3, characterized in that: The first monitoring mechanism (5) is an infrared temperature sensor, and the second monitoring mechanism (6) is a smoke sensor.

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