Wind driven generator tower load monitoring device

Abstract

The utility model discloses a wind driven generator tower load monitoring device, which relates to the technical field of wind driven generator tower load monitoring and comprises a tower, a reinforcing ring is annularly arranged on the inner side face of the lower end of the tower, a mounting frame is mounted on the lower side of the reinforcing ring, and supporting ribs are arranged between the mounting frame and the reinforcing ring. A pressure sensor is mounted on the lower side of the mounting frame, and a fixing disc is arranged at the lower end of the pressure sensor. Through the arrangement of the reinforcing ring, the mounting frame, the supporting ribs, the pressure sensors and the fixing disc, when the tower drum is inclined due to load, the pressure load of the bottom of the tower drum on the pressure sensors at different positions in the annular position can be changed; and therefore, the monitoring equipment can monitor the pressure load change at the circumferential position of the bottom of the tower drum, and the accuracy of tower drum load monitoring is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of wind generator tower load monitoring, in particular to a wind generator tower load monitoring device. Background Art

[0002] Wind turbines require a higher tower for support to ensure that the generator module can operate stably at the top of the tower. In daily operation, the tower of a wind turbine is subject to vertical loads, as well as horizontal loads and shear loads caused by the power generation module at the top of the tower under the action of wind. Therefore, a load monitoring device is required to monitor the load condition of the tower in real time.

[0003] When the existing wind turbine tower vertical load monitoring device is in use, the pressure load on the circumferential position of the tower bottom surface cannot be monitored, so that when the tower tilts to one side, the load on the bottom of the tower cannot be accurately monitored, affecting the accuracy of tower load monitoring. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a wind turbine tower load monitoring device. By arranging a reinforcement ring, a mounting frame, a support rib, a pressure sensor and a fixing plate, when the tower is tilted under load, the pressure load of the pressure sensors at different positions at the circumferential position of the bottom of the tower will change, so that the monitoring equipment can monitor the pressure load changes at the circumferential position of the bottom of the tower, thereby ensuring the accuracy of tower load monitoring, and effectively solving the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind turbine tower load monitoring device, including a tower, characterized in that a reinforcement ring is circumferentially arranged on the inner side surface of the lower end of the tower, and a plurality of annular mounting frames are installed on the lower side of the reinforcement ring, and a support rib is arranged between each mounting frame and the reinforcement ring, and a pressure sensor is fixedly installed on the lower side of each mounting frame.

[0006] Furthermore, a fixing ring is welded at the lower end of the tower, a concrete pier is arranged at the lower side of the fixing ring, and the tower is fixed on the concrete pier through the fixing ring.

[0007] Furthermore, it also includes a signal optical cable, and the multiple pressure sensors are connected through the signal optical cable.

[0008] Furthermore, fixing bolts for fixing the fixing ring on the concrete pier are provided between the concrete pier and the fixing ring.

[0009] Furthermore, a fixing plate is provided at the lower end of the pressure sensor, and the lower end of the pressure sensor is connected to the concrete pier through the fixing plate.

[0010] Furthermore, the upper end of the pressure sensor is crimped to the mounting bracket.

[0011] Furthermore, the mounting frame is welded to the reinforcement ring.

[0012] Furthermore, the reinforcement ring is welded to the tower.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a reinforcing ring, a mounting frame, a supporting rib, a pressure sensor and a fixing plate, so that when the tower is tilted under load, the pressure load on the pressure sensors at different positions in the circumferential position of the bottom of the tower will change, so that the monitoring equipment can monitor the pressure load changes in the circumferential position of the bottom of the tower, thereby ensuring the accuracy of the tower load monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 3 It is a side structural schematic diagram of the mounting frame and the supporting ribs in the utility model.

[0018] In the figure: 1. tower; 2. fixing ring; 3. fixing bolt; 4. concrete pier; 5. mounting frame; 6. fixing plate; 7. pressure sensor; 8. reinforcement ring; 9. signal optical cable; 10. supporting rib. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0020] See also Figure 1-3 This embodiment provides a technical solution: a wind turbine tower load monitoring device, including a tower 1, a reinforcement ring 8 is circumferentially arranged on the inner side of the lower end of the tower 1, and a plurality of annular mounting frames 5 are installed on the lower side of the reinforcement ring 8, a support rib 10 is arranged between each mounting frame 5 and the reinforcement ring 8, and a pressure sensor 7 is fixedly installed on the lower side of each mounting frame 5.

[0021] like Figure 1-3 As shown, when the monitoring device is in use, the pressure sensor 7 is fixed on the concrete pier 4 by the fixing plate 6, and the upper end of the pressure sensor 7 is pressed and contacted with the lower side of the mounting frame 5, so that the pressure sensor 7 detects a constant value. When the tower 1 tilts, the vertical loads on the different pressure sensors 7 at the circumferential positions at the bottom of the tower will change, so that the monitoring module can accurately monitor the load changes in the vertical direction of the tower to ensure the monitoring accuracy.

[0022] A fixing ring 2 is welded to the lower end of the tower 1 , a concrete pier 4 is arranged at the lower side of the fixing ring 2 , and the tower 1 is fixed on the concrete pier 4 through the fixing ring 2 .

[0023] like Figure 1-2 As shown, the concrete pier 4 can fix and support the tower 1 and the fixing ring 2, so that the tower 1 is stably supported.

[0024] It also includes a signal optical cable 9 , through which the multiple pressure sensors 7 are connected. A fixing bolt 3 for fixing the fixing ring 2 on the concrete pier 4 is inserted between the concrete pier 4 and the fixing ring 2 .

[0025] like Figure 1-2 As shown, the fixing bolts 3 can fix the tower 1 on the concrete pier 4 , and the signal optical cable 9 can transmit the monitoring data of the pressure sensor 7 .

[0026] A fixing plate 6 is provided at the lower end of the pressure sensor 7 , and the lower end of the pressure sensor 7 is connected to the concrete pier 4 through the fixing plate 6 . The upper end of the pressure sensor 7 is crimped to the mounting frame 5 , and the mounting frame 5 is welded to the reinforcement ring 8 .

[0027] like Figure 1 and 3 As shown, after the mounting frame 5 tilts with the tower 1, the pressure value on the pressure sensor 7 at the squeezed side of the bottom of the tower 1 is monitored, so that the back-end monitoring module can accurately monitor the load in the vertical direction of the tower 1.

[0028] The reinforcement ring 8 is welded to the tower 1 , and the reinforcement ring 8 can improve the connection strength between the mounting frame 5 and the tower 1 .

[0029] The working principle of a wind turbine tower load monitoring device provided by the utility model is as follows: Figure 1-Figure 3As shown, when the monitoring device is in use, the pressure sensor 7 is fixed on the concrete pier 4 by the fixing plate 6, and the upper end of the pressure sensor 7 is pressed and contacted with the lower side of the mounting frame 5, so that the pressure sensor 7 detects a constant value. When the tower 1 tilts, the vertical loads on the different pressure sensors 7 at the circumferential positions at the bottom of the tower will change, so that the monitoring module can accurately monitor the load changes in the vertical direction of the tower to ensure the monitoring accuracy.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A wind turbine tower load monitoring device, comprising a tower (1), characterized in that: A reinforcement ring (8) is circumferentially arranged on the inner side surface of the lower end of the tower (1), a plurality of annular mounting frames (5) are mounted on the lower side of the reinforcement ring (8), a support rib (10) is arranged between each mounting frame (5) and the reinforcement ring (8), and a pressure sensor (7) is fixedly mounted on the lower side of each mounting frame (5).

2. A wind turbine tower load monitoring device according to claim 1, characterized in that: A fixing ring (2) is welded to the lower end of the tower (1), a concrete pier (4) is arranged on the lower side of the fixing ring (2), and the tower (1) is fixed to the concrete pier (4) via the fixing ring (2).

3. A wind turbine tower load monitoring device according to claim 2, characterized in that: It also includes a signal optical cable (9), and the plurality of pressure sensors (7) are connected via the signal optical cable (9).

4. A wind turbine tower load monitoring device according to claim 2, characterized in that: Fixing bolts (3) for fixing the fixing ring (2) on the concrete pier (4) are provided between the concrete pier (4) and the fixing ring (2).

5. A wind turbine tower load monitoring device according to claim 2, characterized in that: A fixing plate (6) is provided at the lower end of the pressure sensor (7), and the lower end of the pressure sensor (7) is connected to the concrete pier (4) via the fixing plate (6).

6. A wind turbine tower load monitoring device according to claim 1, characterized in that: The upper end of the pressure sensor (7) is crimped to the mounting frame (5).

7. A wind turbine tower load monitoring device according to claim 1, characterized in that: The mounting frame (5) is welded to the reinforcement ring (8).

8. The wind turbine tower load monitoring device according to claim 1, characterized in that: The reinforcement ring (8) is welded to the tower (1).

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