Device for detecting opening and closing signals of tower drum door of wind generating set

Abstract

The utility model relates to the technical field of wind generating sets, in particular to a wind generating set tower door opening and closing signal detection device which comprises a mounting plate, the mounting plate is fixedly mounted on the inner wall of a door frame, the door frame is fixedly mounted on a tower, a tower door is hinged to an outward opening of the door frame, and a nut is rotatably mounted on one face, facing the tower door, of the mounting plate. A photoelectric switch sensor is arranged in the nut, and a reflector plate is fixedly installed on the surface of the inner side of the door frame. According to the wind generating set tower door opening and closing signal detection device, a photoelectric switch sensor is installed on a door frame, the photoelectric switch sensor is connected to a PLC in a main control module, when the PLC detects that a tower door signal is disconnected, an alarm signal is generated to prompt that a tower door is opened, and the alarm signal is uploaded to an SCADA monitoring system of a central control room; monitoring personnel judge whether processing is needed or not according to the operation and maintenance condition of the wind field.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine generator sets, in particular to a tower door opening and closing signal detection device for a wind turbine generator set. Background Art

[0002] In recent years, with national policies supporting renewable energy, installed wind power capacity has continued to grow, leading to a high degree of market concentration in the wind power industry. The top ten companies own a combined 80.23% of the total number of wind farms. With technological advancements and increasing market demand, the large-scale and intelligent development of wind turbines will become a future trend. In summary, wind turbines demonstrate their importance and broad prospects as a clean energy source in terms of their operating principles, technical parameters, and market conditions.

[0003] According to the requirements of the wind farm owner, the closed / open status of the tower door needs to be detected to ensure the safe operation of the unit. Utility Model Content

[0004] The purpose of the utility model is to provide a wind turbine tower door opening and closing signal detection device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A wind turbine tower door opening and closing signal detection device includes a mounting plate, the mounting plate is fixedly mounted on the inner wall of a door frame, the door frame is fixedly mounted on the tower, the outward opening of the door frame is hinged with a tower door, a nut is rotatably mounted on a side of the mounting plate facing the tower door, a photoelectric switch sensor is arranged inside the nut, a reflective sheet is fixedly mounted on the inner surface of the door frame, the reflective sheet corresponds to the position of the photoelectric switch sensor, one end of the photoelectric switch sensor is fixedly connected to a signal line, a main control module is fixedly mounted inside the tower, and the signal line is connected to the main control module.

[0007] Preferably, the side of the mounting plate facing the door frame is fixedly mounted on the inner wall of the door frame by welding.

[0008] Preferably, a bearing is provided on the outer surface of the nut, and the nut is rotatably mounted on the mounting plate through the bearing. An external threaded sleeve is fixedly mounted on the outer surface of the photoelectric switch sensor, and the external threaded sleeve is threadedly assembled with the inner wall of the nut.

[0009] Preferably, a limit plate is fixedly mounted on one end of the photoelectric switch sensor away from the tower door, a limit rod is fixedly mounted on the surface of the limit plate, and the limit rod is inserted through the mounting plate to limit the photoelectric switch sensor.

[0010] Preferably, a wire tube fixing plate is fixedly installed on the inner wall of the tower, a connecting tube is provided on the wire tube fixing plate, and the signal line is provided inside the connecting tube.

[0011] Compared with the prior art, the present invention provides a wind turbine tower door opening and closing signal detection device, which has the following beneficial effects:

[0012] The wind turbine tower door opening and closing signal detection device installs a photoelectric switch sensor on the door frame, and connects the photoelectric switch sensor to the PLC in the main control module. When the PLC detects that the tower door signal is disconnected, it generates an alarm signal to prompt the tower door to open, and uploads the alarm signal to the SCADA monitoring system in the central control room. The monitoring personnel will determine whether it needs to be handled based on the wind farm operation and maintenance situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model installed at the door frame;

[0014] Figure 2 This is another structural diagram of the utility model installed at a door frame;

[0015] Figure 3 It is a structural diagram of the present utility model.

[0016] In the figure: 1. Tower; 2. Door frame; 3. Tower door; 4. Reflector; 5. Mounting plate; 6. Nut; 7. Externally threaded sleeve; 8. Photoelectric switch sensor; 9. Limit plate; 10. Limit rod; 11. Signal line; 12. Wire tube fixing plate. DETAILED DESCRIPTION

[0017] See also Figure 1-3, a wind turbine tower door opening and closing signal detection device includes a mounting plate 5, the mounting plate 5 is fixedly mounted on the inner wall of the door frame 2, the door frame 2 is fixedly mounted on the tower 1, the outward opening of the door frame 2 is hinged with the tower door 3, the mounting plate 5 is rotatably mounted on the side facing the tower door 3 with a nut 6, a photoelectric switch sensor 8 is arranged inside the nut 6, according to actual application requirements, the photoelectric switch sensor 8 selects a more commonly used diffuse reflection photoelectric switch, its working principle is that when the tower door is closed, the light signal is reflected back and the switch is triggered, a reflective sheet 4 is fixedly mounted on the inner surface of the door frame 2, the reflective sheet 4 corresponds to the position of the photoelectric switch sensor 8, and the light emitted by the reflective photoelectric switch sensor 8 is conveniently replaced, one end of the photoelectric switch sensor 8 is fixedly connected to a signal line 11, a main control module is fixedly mounted inside the tower 1, the signal line 11 is connected to the main control module, a PLC is also arranged inside the main control module, and the main control module is also connected to the SCADA monitoring system of the central control room by telecommunications, when the PLC detects that the tower door signal is disconnected, an alarm signal is generated to prompt the tower door to be opened. The alarm signal is then uploaded to the SCADA monitoring system in the central control room, where monitoring personnel determine whether any action is needed based on the wind farm's operation and maintenance status.

[0018] Furthermore, the side of the mounting plate 5 facing the door frame 2 is fixedly mounted on the inner wall of the door frame 2 by welding.

[0019] Among them, the outer surface of the nut 6 is provided with a bearing, and the nut 6 is rotatably installed on the mounting plate 5 through the bearing. The outer surface of the photoelectric switch sensor 8 is fixedly installed with an externally threaded sleeve 7, and the externally threaded sleeve 7 is screwed and assembled with the inner wall of the nut 6. By rotating the nut 6, it is convenient to drive the photoelectric switch sensor 8 to move through the externally threaded sleeve 7, and adjust the distance between one end of the photoelectric switch sensor 8 and the tower door 3 to ensure the normal operation of the device.

[0020] Furthermore, a limit plate 9 is fixedly installed on one end of the photoelectric switch sensor 8 away from the tower door 3, and a limit rod 10 is fixedly installed on the surface of the limit plate 9. The limit rod 10 is inserted into the mounting plate 5 and is used to limit the photoelectric switch sensor 8 to prevent the photoelectric switch sensor 8 from rotating with the nut 6 and affecting the normal operation of the device.

[0021] Furthermore, a wire tube fixing plate 12 is fixedly installed on the inner wall of the tower 1 , a connecting tube is provided on the wire tube fixing plate 12 , and the signal line 11 is arranged inside the connecting tube to facilitate auxiliary support for the signal line 11 .

[0022] Before installing this device, be sure to check the weather conditions on site in advance. Work must be suspended during thunderstorms. When working on a wind turbine, all safety regulations must be strictly adhered to. Illegal operations are strictly prohibited. Since welding is required for rectification, hot work must be permitted by the owner and adequate safety measures must be implemented.

[0023] Due to the large amount of materials required for the renovation, as well as the need for on-site climbing and welding work, two people are required to complete the work: one person is responsible for wiring, and the other is responsible for providing tools and materials. After one person completes the wiring, the other is responsible for checking the wiring and confirming that all tools and materials are brought.

[0024] One mounting plate and two wire tube fixing plates 12 are welded to the tower door frame of each unit.

[0025] Before welding Figure 1 and 2 Grind the paint surface at the welding position indicated.

[0026] Use electric welding tools to weld the mounting plate 5 and the wire tube fixing plate 12 to the predetermined position, and try to ensure that the axis of the photoelectric switch sensor 8 is perpendicular to the closed state of the tower door after installation.

[0027] After the tower 1 is welded, paint it according to the painting requirements of the tower 1. After the mounting plate 5 and the wire tube fixing plate 12 are welded to the tower 1, apply the same anti-corrosion paint as the tower.

[0028] Working principle: The wind turbine tower door opening and closing signal detection device installs a photoelectric switch sensor 8 on the door frame 2, and connects the photoelectric switch sensor 8 to the PLC in the main control module. When the PLC detects that the tower door signal is disconnected, it generates an alarm signal to prompt the tower door 3 to open, and uploads the alarm signal to the SCADA monitoring system in the central control room. The monitoring personnel will determine whether it needs to be processed based on the wind farm operation and maintenance situation.

Claims

1. A wind turbine tower door opening and closing signal detection device, comprising a mounting plate (5), wherein the mounting plate (5) is fixedly mounted on the inner wall of a door frame (2), wherein the door frame (2) is fixedly mounted on a tower (1), and a tower door (3) is hingedly connected to the outward opening of the door frame (2), characterized in that: A nut (6) is rotatably mounted on a side of the mounting plate (5) facing the tower door (3); a photoelectric switch sensor (8) is provided inside the nut (6); a reflective sheet (4) is fixedly mounted on the inner surface of the door frame (2); the reflective sheet (4) corresponds to the position of the photoelectric switch sensor (8); a signal line (11) is fixedly connected to one end of the photoelectric switch sensor (8); a main control module is fixedly mounted inside the tower (1); and the signal line (11) is connected to the main control module.

2. The wind turbine generator tower door opening and closing signal detection device according to claim 1, characterized in that: The side of the mounting plate (5) facing the door frame (2) is fixedly mounted on the inner wall of the door frame (2) by welding.

3. The wind turbine generator tower door opening and closing signal detection device according to claim 1, characterized in that: The outer surface of the nut (6) is provided with a bearing, and the nut (6) is rotatably mounted on the mounting plate (5) via the bearing. An externally threaded sleeve (7) is fixedly mounted on the outer surface of the photoelectric switch sensor (8), and the externally threaded sleeve (7) is threadedly assembled with the inner wall of the nut (6).

4. The wind turbine generator tower door opening and closing signal detection device according to claim 1, characterized in that: A limiting plate (9) is fixedly mounted on one end of the photoelectric switch sensor (8) away from the tower door (3); a limiting rod (10) is fixedly mounted on the surface of the limiting plate (9); the limiting rod (10) is inserted into the mounting plate (5) and is used to limit the photoelectric switch sensor (8).

5. The wind turbine generator tower door opening and closing signal detection device according to claim 1, characterized in that: A wire tube fixing plate (12) is fixedly mounted on the inner wall of the tower (1), a connecting tube is provided on the wire tube fixing plate (12), and the signal line (11) is provided inside the connecting tube.

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