Vortex vibration alarm device for flexible tower drum of wind turbine generator

Abstract

The utility model provides a wind turbine generator flexible tower tube vortex vibration alarm device, which relates to the sensor field, and comprises a fixing part and a wire part, a mercury bead is arranged in the fixing part, the wire part is arranged at the edge of the fixing part, and the mercury bead is arranged in the wire part. Every two adjacent wire parts form a group and are jointly used for connecting a circuit at the same position, the wire parts are annularly distributed and comprise positive electrodes and negative electrodes, all the positive electrodes are connected through positive electrode wires, all the negative electrodes are connected through negative electrode wires, and an alarm and a power source are connected between the positive electrode wires and the negative electrode wires. According to the wind turbine generator flexible tower barrel vortex vibration alarm device, the multiple wire parts are annularly arranged, and when inclination occurs, the mercury bead rolls towards one side, so that the positive electrode and the negative electrode on one side of the lowest point can be switched on, a circuit can be switched on, the alarm works, and inclination can be prompted.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field, concretely is a kind of wind turbine generator system flexible tower cylinder vortex vibration alarm device. BACKGROUND

[0002] Wind power generation is a kind of power generation mode that wind kinetic energy is converted into mechanical energy, and mechanical energy is converted into electric energy, and its principle is to use wind to drive windmill blade rotation, and then through speed increaser to improve the speed of rotation, to promote generator to generate electricity.

[0003] The flexible tower cylinder of wind turbine generator system may occur vortex-induced vibration (vortex vibration) in the operation process, and the vibration may lead to structural fatigue and even collapse under certain conditions. The existing vibration monitoring system is mainly based on acceleration measurement signal feedback, and the alarm threshold is low, and vortex vibration alarm cannot be targeted. At present, the domestic wind power industry is blank in the alarm of vortex vibration of flexible tower cylinder. When personnel work in the inside of wind turbine, if vortex vibration occurs, effective measures cannot be taken in time, which may lead to extremely serious consequences. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of wind turbine generator system flexible tower cylinder vortex vibration alarm device, solve the problem that vortex vibration is not found in time in background art.

[0005] TECHNICAL SCHEME

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of wind turbine generator system flexible tower cylinder vortex vibration alarm device, including fixed part and wire part, the inside of fixed part is provided with mercury bead, wire part is arranged at the edge of fixed part, adjacent two wire parts are a group commonly used to connect the circuit of same position, multiple wire parts are annularly distributed, wire part is positive and negative, all positives are connected by positive wire, all negatives are connected by negative wire, positive wire and negative wire are connected with alarm and power supply.

[0007] Further, the fixed part is an inner fixed layer and an outer fixed layer, the inner fixed layer is sleeved in the inner circle of the outer fixed layer, the conductive end of wire part is located in the inner fixed layer, multiple wire parts are annularly distributed in the inner fixed layer, positive wire and negative wire are inlaid in the inner side of outer fixed layer and extend to the outer side of outer fixed layer.

[0008] Further, the inner bottom wall of the inner fixed layer is concave downward to form a groove, and the mercury bead is contained in the inner part of the groove.

[0009] Further, the fixed part is a plurality of single-end sealed cavities, mercury beads are arranged inside the cavities, the wire part is arranged at the opening of the cavity and is sealed, a support plate is arranged below the wire part, and the positive wire and the negative wire are fixedly installed at the outer circle of the support plate.

[0010] Further, the outer surface of the cavity is sleeved with a sleeve ring, the sleeve ring is rotationally connected with the support plate, a screw rod is threadedly connected with the middle part of the support plate, the screw rod is located below the cavity, and the cavity is obliquely arranged towards the center of the circle.

[0011] Further, the sealing end of the cavity is recessed downwards to form a containing groove, and the mercury beads are stored inside the containing groove.

[0012] Further, the alarm is an audible and light alarm unit, a time delay relay is arranged between the alarm and the power supply, the time delay relay is connected in series with the power supply, the alarm is connected in series with the wire part, and the plurality of wire parts are connected in parallel with each other.

[0013] The wind turbine generator unit flexible tower cylinder vortex alarm device has the advantages that:

[0014] 1. The wind turbine generator unit flexible tower cylinder vortex alarm device, by arranging a plurality of wire parts in a ring shape, when tilting occurs, the mercury beads roll to one side, thereby being able to connect the positive electrode and the negative electrode on the side of the lowest point, further being able to connect the circuit, so that the alarm works, thereby being able to prompt the tilting.

[0015] 2. The wind turbine generator unit flexible tower cylinder vortex alarm device, by arranging that the outer surface of the cavity is sleeved with a sleeve ring, the sleeve ring is rotationally connected with the support plate, a screw rod is threadedly connected with the middle part of the support plate, the screw rod is located below the cavity, and the cavity is obliquely arranged towards the center of the circle, by such an arrangement, the inclination angle of the cavity can be changed by lifting the screw rod, thereby being able to adjust the response threshold of the device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a fixed part half-section schematic view of the utility model;

[0018] Figure 3 It is a cavity connection schematic view of the utility model;

[0019] Figure 4 It is a support plate connection schematic view of the utility model;

[0020] Figure 5 It is a cavity half-section schematic view of the utility model.

[0021] Wherein, 1, fixed part; 2, wire part; 3, mercury beads; 201, positive electrode; 202, negative electrode; 203, positive electrode wire; 204, negative electrode wire; 4, power supply; 102, inner fixed layer; 103, outer fixed layer; 104, groove; 105, cavity; 5, support plate; 6, collar; 7, screw; 8, containing groove; 9, time delay relay; 10, alarm. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Referring to Figures 1-5 A wind turbine flexible tower vortex alarm device, including fixed part 1 and wire part 2, the inside of fixed part 1 is provided with mercury beads 3, wire part 2 is arranged at the edge of fixed part 1, adjacent two wire parts 2 are a group commonly used for connecting the circuit of the same position, a plurality of wire parts 2 are annularly distributed, wire part 2 is divided into positive electrode 201 and negative electrode 202, all positive electrodes 201 are connected by positive electrode wire 203, all negative electrodes 202 are connected by negative electrode wire 204, alarm 10 and power supply 4 are connected between positive electrode wire 203 and negative electrode wire 204, alarm 10 can be connected with remote data transmission module, so that the vortex occurring at the place can be reported to the remote place. The device is fixed on the horizontal plane, and the mercury beads 3 are adjusted to the center position.

[0024] Fixed part 1 is divided into inner fixed layer 102 and outer fixed layer 103, inner fixed layer 102 is sleeved on the inner ring of outer fixed layer 103, the conductive end of wire part 2 is located in the inside of inner fixed layer 102, a plurality of wire parts 2 are annularly distributed in the inside of inner fixed layer 102, positive electrode wire 203 and negative electrode wire 204 are inlaid on the inner side of outer fixed layer 103 and extend to the outer side of outer fixed layer 103, through such setting, wire part 2 can be fixed conveniently, and inner fixed layer 102 is closed to facilitate the storage of mercury.

[0025] The inner bottom wall of inner fixed layer 102 is concave downward to form groove 104, and mercury beads 3 are contained in the inside of groove 104, through such setting, it can be guaranteed that mercury beads 3 will not move when shaking in a small range, reducing the possibility of false touch.

[0026] The fixed part 1 is a plurality of single-end sealed cavities 105, the mercury beads 3 are arranged inside the cavities 105, the wire part 2 is arranged at the opening of the cavity 105 and is sealed, the support plate 5 is arranged below the wire part 2, the positive wire 203 and the negative wire 204 are fixedly arranged on the outer ring of the support plate 5, and through the arrangement, each cavity 105 can be controlled by the mercury beads 3, and the response change speed is improved.

[0027] The outer surface of the cavity 105 is sleeved with the sleeve ring 6, the sleeve ring 6 is rotationally connected with the support plate 5, the middle part of the support plate 5 is threadedly connected with the screw rod 7, the screw rod 7 is located below the cavity 105, the cavity 105 is arranged to be inclined to the center side, through the arrangement, the inclination angle of the cavity 105 can be changed by lifting the screw rod 7, so that the response threshold of the device can be adjusted, and the greater the inclination angle, the smaller the response threshold.

[0028] The closed end of the cavity 105 is recessed downward to form the containing groove 8, the mercury beads 3 are stored inside the containing groove 8, and through the arrangement, the displacement of the mercury beads 3 caused by slight shaking can be avoided.

[0029] The alarm 10 is an audible and light alarm unit, the audible and light alarm unit can emit sound and light, so that the deflection is prompted, the delay relay 9 is arranged between the alarm 10 and the power supply 4, the delay relay 9 is connected in series with the power supply 4, the arrangement of the delay relay 9 can increase the waiting time, and only when the circuit is connected for a long time, the alarm 10 can work, so that the false touch is avoided, the alarm 10 is connected in series with the wire part 2, through the arrangement, the direction of the inclination can be found by using light and sound, and the plurality of wire parts 2 are connected in parallel with each other.

[0030] In use, the plurality of wire parts 2 are arranged in a ring shape, when the inclination occurs, the mercury beads 3 roll to one side, so that the positive pole 201 and the negative pole 202 on the side of the lowest point can be connected, and then the circuit can be connected, so that the alarm 10 works, and the inclination is prompted.

[0031] It should be noted that in the present text, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between the entities or operations.

[0032] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all of them should be covered in the protection scope of the utility model.

Claims

1. A wind turbine tower flexible tower vortex shedding alarm device, comprising a fixed part (1) and a wire part (2), characterized in that: The fixed part (1) is internally provided with mercury beads (3), the wire part (2) is arranged at the edge of the fixed part (1), and two adjacent wire parts (2) are a group commonly used for turning on the circuit of the same position, and a plurality of wire parts (2) are annularly distributed; The wire part (2) is divided into positive poles (201) and negative poles (202), all the positive poles (201) are connected through positive pole wires (203), all the negative poles (202) are connected through negative pole wires (204), and the positive pole wires (203) and the negative pole wires (204) are connected with an alarm (10) and a power supply (4).

2. A wind turbine tower flexible mode warning device according to claim 1, wherein: The fixed part (1) is divided into an inner fixed layer (102) and an outer fixed layer (103), the inner fixed layer (102) is sleeved on the inner ring of the outer fixed layer (103), the conductive end of the wire part (2) is located in the inner fixed layer (102), a plurality of wire parts (2) are annularly distributed in the inner fixed layer (102), and the positive pole wires (203) and the negative pole wires (204) are inlaid on the inner side of the outer fixed layer (103) and extend to the outer side of the outer fixed layer (103).

3. A wind turbine tower flexible mode warning device according to claim 2, wherein: The inner bottom wall of the inner fixed layer (102) is recessed downward to form a groove (104), and the mercury beads (3) are accommodated in the inner part of the groove (104).

4. The wind turbine tower vibration alert device of claim 1, wherein: The fixed part (1) is a plurality of single-end sealed cavities (105), the mercury beads (3) are arranged in the inner part of the cavity (105), the wire part (2) is arranged at the opening of the cavity (105) and is sealed, the lower part of the wire part (2) is provided with a support plate (5), and the positive pole wires (203) and the negative pole wires (204) are fixedly installed on the outer ring of the support plate (5).

5. A wind turbine tower flexible mode warning device according to claim 4, wherein: The outer surface of the cavity (105) is sleeved with a sleeve ring (6), the sleeve ring (6) is rotationally connected with the support plate (5), the middle part of the support plate (5) is screwedly connected with a screw rod (7), the screw rod (7) is located below the cavity (105), and the cavity (105) is inclined to the center side.

6. A wind turbine tower flexible mode warning device according to claim 5, wherein: The bottom of the cavity (105) is recessed downward to form an accommodation groove (8), and the mercury beads (3) are stored in the inner part of the accommodation groove (8).

7. A wind turbine tower vortex shedding alarm device according to claim 1, wherein: The alarm (10) is an audible and light alarm unit, a delay relay (9) is arranged between the alarm (10) and the power supply (4), the delay relay (9) is connected in series with the power supply (4), the alarm (10) is connected in series with the wire part (2), and a plurality of wire parts (2) are connected in parallel with each other.

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