Reinforcing structure of fan tower drum

Abstract

The invention provides a reinforcing structure of a fan tower drum, and relates to the technical field of fan tower drum reinforcing devices.The reinforcing structure comprises an upper hoop flange plate and a lower hoop flange plate, and the upper hoop flange plate and the lower hoop flange plate are installed on the upper side and the lower side of the position, needing to be reinforced, of a tower drum body in a hooped mode correspondingly; the upper hoop flange plate and the lower hoop flange plate are connected through a composite traction twisted wire; the composite traction twisted wire is formed by weaving a peripheral traction twisted wire and an inner heating wire, and the composite traction twisted wire pulls the piezoelectric ceramic connecting block in the vibration process so that voltage can be generated at the two poles of the piezoelectric ceramic connecting block. The adjusting mode has timeliness, the adjusting risk of operators is greatly reduced, meanwhile, vibration on the surface of the tower drum can be converted into electric energy through the composite traction twisted wire, the electric energy can be further used by electrical elements in the reinforcing structure, and the functions of the device are greatly enriched.

Description

Technical Field

[0001] The present invention relates to the technical field of fan tower barrel reinforcement devices, and specifically to a reinforcement structure for a fan tower barrel. Background Technique

[0002] In the prior art, a wind power tower barrel reinforcement device with the publication number of "CN116624339B" includes multiple groups of barrel body reinforcement components arranged at intervals along the axial direction of the tower barrel, a bottom reinforcement component provided at the bottom of the tower barrel, and a connecting rod component connecting adjacent barrel body reinforcement components and connecting the bottom reinforcement component with the lowermost barrel body reinforcement component; the barrel body reinforcement component includes an inner reinforcement ring that hugs the tower barrel, an outer reinforcement ring provided outside the inner reinforcement ring, and a damping shock absorber connected between the inner reinforcement ring and the outer reinforcement ring. One end of the damping shock absorber slides circumferentially relative to the tower barrel during the vibration of the tower barrel, and the other end slides axially relative to the tower barrel. This device has advantages such as high load-bearing capacity and good vibration energy dissipation effect.

[0003] However, the above device still has relatively obvious defects during use: the above device uses a common pulling structure to reinforce the outside of the tower barrel, but once this reinforcement structure is installed, it cannot be adjusted in a timely and autonomous manner according to the changes in the internal stress of the tower barrel and the external environment. Moreover, the manual adjustment process requires workers to climb to high altitudes, which increases the operation difficulty and has a lag in the adjustment process. In addition, the function of the above device is relatively single and cannot meet the multi-purpose requirements under the existing technology. Summary of the Invention

[0004] The purpose of the present invention is to provide a reinforcement structure for a fan tower barrel to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A reinforcement structure for a fan tower barrel, comprising: An upper hoop flange and a lower hoop flange, the upper hoop flange and the lower hoop flange are respectively installed by hugging on the upper and lower sides of the position of the tower barrel body that needs to be reinforced, and the upper hoop flange and the lower hoop flange are connected by a composite pulling wire; A plurality of composite pulling wires, the plurality of composite pulling wires are installed in a cross-misaligned manner between the upper hoop flange and the lower hoop flange, and a connecting mechanism for fixedly connecting both ends of the composite pulling wire is provided on the opposite sides of the upper hoop flange and the lower hoop flange; The composite pulling wire is woven from an outer pulling wire and an inner heating wire. Both ends of the inner heating wire are connected to a power supply module through wires, and the power supply module provides heat energy supply to the inner heating wire. The outer pulling wire is woven from a nickel-titanium alloy wire and a steel wire; wherein, The connection mechanism includes a piezoelectric ceramic connection block. During the fixed connection process between the composite traction wire and the connection mechanism, the vibration generated on the surface of the tower barrel body is transmitted to the composite traction wire through the upper hoop flange and the lower hoop flange. The composite traction wire pulls the piezoelectric ceramic connection block during vibration, thereby generating a voltage at its two poles. By electrically connecting the two poles of the piezoelectric ceramic connection block to the energy storage module, the electrical energy generated by the vibration is stored.

[0006] Preferably, both the upper hoop flange and the lower hoop flange are composed of a pair of semi-circular discs. A bolt assembly hole is correspondingly provided on each of the pair of semi-circular discs. The pair of semi-circular discs are fixed by clamping through installing fastening bolts into the bolt assembly holes.

[0007] Preferably, the connection mechanism for connecting both ends of the composite traction wire includes an upper connection structure and a lower connection mechanism. The upper connection structure and the lower connection mechanism are respectively arranged inside the upper hoop flange and the lower hoop flange. The piezoelectric ceramic connection block is arranged on one side of the upper connection structure. The upper connection structure further includes a pressure sensor, and the pressure sensor is installed at the bottom of the piezoelectric ceramic connection block. The lower connection mechanism includes a fastening adjustment block, and threaded connecting rods are installed on the opposite sides of the fastening adjustment block and the piezoelectric ceramic connection block.

[0008] Preferably, internal threaded connection sleeves are fixedly sleeved on both ends of the composite traction wire. The composite traction wire is in threaded cooperation with the threaded connecting rods installed on the fastening adjustment block and the piezoelectric ceramic connection block respectively through the internal threaded connection sleeves arranged at both ends.

[0009] Preferably, the power supply module for supplying power to several internal heating wires is arranged inside the tower barrel body. The several internal heating wires are connected in parallel with the power supply module. Wireless circuit breakers are respectively installed on the parallel circuits of each internal heating wire. The wireless circuit breakers are in communication connection with the main control MCU through a wireless communication module. The main control MCU controls the corresponding wireless circuit breakers for on-off control.

[0010] Preferably, the energy storage module for collecting the electrical energy generated by the piezoelectric ceramic connection block is arranged inside the upper hoop flange. The energy storage module is also electrically connected to the pressure sensor, and the energy storage module supplies power to the pressure sensor.

[0011] Preferably, the pressure sensor is in communication connection with the main control MCU, so as to send the pressure data of each composite traction wire to the main control MCU side.

[0012] Compared with the prior art, the beneficial effects of the present invention are: The present invention strengthens the outside of the tower barrel body through composite tensioning wire ropes. The composite tensioning wire ropes are woven from shape memory alloys and steel ropes, and internal heating wires are inserted therein to correspondingly adjust the tension strength of each composite tensioning wire rope. This setting can adjust the tension strength of corresponding parts during the change of the external environment or the stress change of the tower barrel itself, and then remotely adjust the reinforcement structure in a non-contact manner. This adjustment method is timely and greatly reduces the adjustment risk of operators. At the same time, the composite tensioning wire ropes can also capture the vibration on the surface of the tower barrel caused by the operation of the fan or the external environment and convert it into electric energy for further use by the electrical components inside the reinforcement structure, greatly enriching the functions of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 is a sectional schematic diagram of the overall structure of the present invention; Figure 3 is a schematic diagram of the connection structure of the internal heating wire of the present invention; Figure 4 is a schematic diagram of the braided structure of the composite tensioning wire rope of the present invention.

[0014] In the figure: 1 upper hoop flange, 2 lower hoop flange, 3 tower barrel body, 4 composite tensioning wire rope, 5 peripheral tensioning wire rope, 6 internal heating wire, 7 power supply module, 8 piezoelectric ceramic connection block, 9 semi-circular disc, 10 bolt assembly hole, 11 pressure sensor, 12 fastening adjustment block, 13 threaded connecting rod, 14 internal thread connecting sleeve, 15 wireless circuit breaker. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1-4 , the present invention provides a technical solution: Embodiment 1: A reinforcement structure for a fan tower barrel, comprising: An upper hoop flange 1 and a lower hoop flange 2, the upper hoop flange 1 and the lower hoop flange 2 are respectively clamped and installed on the upper and lower sides of the position of the tower barrel body 3 that needs to be reinforced, and the upper hoop flange 1 and the lower hoop flange 2 are connected by a composite tensioning wire rope 4; A number of composite tensile wires 4 are installed in a cross - staggered manner between the upper hoop flange 1 and the lower hoop flange 2. Connection mechanisms for fixedly connecting both ends of the composite tensile wires 4 are provided on the opposite sides of the upper hoop flange 1 and the lower hoop flange 2. The composite tensile wire 4 is woven from an outer tensile wire 5 and an inner heating wire 6. Both ends of the inner heating wire 6 are connected to a power supply module 7 through wires, and the power supply module 7 provides heat energy supply to the inner heating wire 6. The outer tensile wire 5 is composed of a composite weaving of nitinol wire and steel wire. Among them, The connection mechanism includes a piezoelectric ceramic connection block 8. During the process of fixedly connecting the composite tensile wire 4 with the connection mechanism, the vibration generated on the surface of the tower barrel body 3 is transmitted to the composite tensile wire 4 through the upper hoop flange 1 and the lower hoop flange 2. The composite tensile wire 4 pulls the piezoelectric ceramic connection block 8 during vibration, thereby generating a voltage at its two poles. By electrically connecting the two poles of the piezoelectric ceramic connection block 8 to the energy storage module, the electrical energy generated by the vibration is stored.

[0017] In this embodiment, both the upper hoop flange 1 and the lower hoop flange 2 are composed of a pair of semi-circular discs 9. A pair of bolt assembly holes 10 are correspondingly provided on the pair of semi-circular discs 9. By installing fastening bolts into the bolt assembly holes 10, the hoop fixation of the pair of semi-circular discs 9 is completed. The upper hoop flange 1 and the lower hoop flange 2 are connected by a composite traction wire 4. Through the traction between the composite traction wires 4, the outside of the tower barrel body 3 is strengthened. Among them, the composite traction wire 4 is installed between the upper hoop flange 1 and the lower hoop flange 2 in a cross-misaligned manner. By means of the cross-misaligned method, the traction strength is improved. The composite traction wire 4 is woven by an outer traction wire 5 and an inner heating wire 6. Both ends of the inner heating wire 6 are connected to a power supply module 7 through wires. The power supply module 7 provides heat energy supply to the inner heating wire 6. The outer traction wire 5 is composed of a composite weaving of a nickel-titanium alloy wire and a steel wire. The nickel-titanium alloy wire is a common shape memory alloy, which can achieve shape recovery at 50-100 °C after heat treatment. However, considering that the shape memory alloy itself has a large elasticity, in order to ensure its strength after forming a wire, the nickel-titanium alloy wire and the steel wire are composite woven, so that while ensuring the traction strength, the traction force formed by the shape recovery of the nickel-titanium alloy wire at room temperature can also be utilized. Through the setting of the inner heating wire 6, it can be heated, and then the function of adjusting the traction strength of the composite traction wire 4 is achieved. The advantage of such a design is that it can be remotely and timely adjusted according to the stress change of the tower barrel body 3 itself and the sway direction of the tower barrel body 3 in a harsh environment. For example, when the tower barrel body 3 swings bidirectionally under the action of wind, at this time, by adjusting the traction strength of the composite traction wires 4 on both sides of the sway direction of the tower barrel body 3, the sway amplitude of the tower barrel body 3 can be effectively reduced, thereby ensuring the safety of the tower barrel body 3 and the installed fan. Further, since the tower barrel body 3 will also change by a certain amplitude during daily use, this normal swing amplitude will not affect the tower barrel body 3 and the fan installed thereon. However, during the swaying or vibration of the tower barrel body 3, the composite traction wire 4 at the corresponding position will generate a traction change. For this reason, in this embodiment, a piezoelectric ceramic connection block 8 is also installed on one side of the composite traction wire 4. The composite traction wire 4 pulls the piezoelectric ceramic connection block 8 during vibration, thereby generating a voltage at its two poles. By electrically connecting the two poles of the piezoelectric ceramic connection block 8 to the energy storage module, the electrical energy generated by the vibration is stored.

[0018] Embodiment Two: The connecting mechanism for connecting both ends of the composite traction wire 4 includes an upper connecting structure and a lower connecting mechanism. The upper connecting structure and the lower connecting mechanism are respectively arranged in the upper hoop flange 1 and the lower hoop flange 2. The piezoelectric ceramic connecting block 8 is arranged on one side of the upper connecting structure. The upper connecting structure further includes a pressure sensor 11, and the pressure sensor 11 is installed at the bottom of the piezoelectric ceramic connecting block 8. The lower connecting mechanism includes a fastening adjustment block 12, and threaded connecting rods 13 are installed on the opposite sides of the fastening adjustment block 12 and the piezoelectric ceramic connecting block 8.

[0019] Inner threaded connecting sleeves 14 are fixedly sleeved on both ends of the composite traction wire 4. The composite traction wire 4 is in threaded cooperation with the threaded connecting rods 13 installed on the fastening adjustment block 12 and the piezoelectric ceramic connecting block 8 respectively through the inner threaded connecting sleeves 14 arranged at both ends.

[0020] In this embodiment, the specific structure of the connecting mechanism at both ends of the composite traction wire 4 is further disclosed. Among them, the piezoelectric ceramic connecting block 8 is arranged on one side of the upper connecting structure. The upper connecting structure further includes a pressure sensor 11, and the pressure sensor 11 is installed at the bottom of the piezoelectric ceramic connecting block 8. When the composite traction wire 4 pulls the piezoelectric ceramic connecting block 8, a pulling value will be formed on the pressure sensor 11. By reading this value, the pulling force data of the composite traction wire 4 can be known. Among them, the piezoelectric ceramic connecting block 8 adopts a common structure in the prior art, which has a tensile ceramic block arranged in the middle, and a copper metal elastic sheet is installed on the other side. During the pulling process of the composite traction wire 4, the tensile ceramic block is driven to generate a slight deformation. At this time, the piezoelectric ceramic connecting block 8 forms a positive piezoelectric effect, and voltages are generated on the two electrode surfaces of the piezoelectric ceramic connecting block 8. Then, the voltage is converted into electric energy for storage through a corresponding circuit. At the same time, one end of the composite traction wire 4 far from the piezoelectric ceramic connecting block 8 is connected to the fastening adjustment block 12. By rotating the fastening adjustment block 12, the pulling strength of the composite traction wire 4 can be adjusted. Therefore, a pre-tightening adjustment hole is also opened on the lower hoop flange 2 on the side of the fastening adjustment block 12 far from the composite traction wire 4. Refer to the attached Figure 2 , and the fastening adjustment block 12 is rotated through a rotating mechanism passing through the pre-tightening adjustment hole, so as to adjust the pulling strength of the composite traction wire 4.

[0021] Embodiment Three: The power supply module 7 for supplying power to a plurality of internal heating wires 6 is arranged in the tower barrel body 3. A plurality of internal heating wires 6 are arranged in parallel with the power supply module 7. Wireless circuit breakers 15 are respectively installed on the parallel circuits of each internal heating wire 6. The wireless circuit breakers 15 are in communication connection with the main control MCU through a wireless communication module, and the corresponding wireless circuit breakers 15 are controlled to be turned on and off through the main control MCU.

[0022] The energy storage module for collecting the electric energy generated by the piezoelectric ceramic connection block 8 is arranged in the upper hoop flange 1. The energy storage module is also electrically connected to the pressure sensor 11, and the energy storage module supplies power to the pressure sensor 11.

[0023] The pressure sensor 11 is communicatively connected to the main control MCU, so as to send the pressure data of each composite pulling wire 4 to the main control MCU side.

[0024] In this embodiment, the electrical layout of the inner heating wire 6 and the pressure sensor 11 is further disclosed. A plurality of inner heating wires 6 are arranged in parallel with the power supply module 7, and wireless circuit breakers 15 are respectively installed on each parallel circuit, so that the main control MCU can control the corresponding wireless circuit breakers 15 to be turned on and off, thereby achieving the purpose of adjusting the pulling strength of each composite pulling wire 4.

[0025] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reinforcement structure for a wind turbine tower barrel, characterized in that Including: An upper hoop flange and a lower hoop flange, the upper hoop flange and the lower hoop flange are respectively clamped and installed on the upper and lower sides of the position on the tower barrel body that needs to be reinforced, and the upper hoop flange and the lower hoop flange are connected by a composite pulling wire; A number of composite pulling wires, a number of the composite pulling wires are installed between the upper hoop flange and the lower hoop flange in a cross - staggered manner, and a connecting mechanism for fixedly connecting both ends of the composite pulling wire is provided on the opposite sides of the upper hoop flange and the lower hoop flange; The composite pulling wire is woven by an outer pulling wire and an inner heating wire, both ends of the inner heating wire are connected to a power supply module through wires, and the power supply module provides heat energy supply to the inner heating wire. The outer pulling wire is woven by a composite of nitinol alloy wire and steel wire; wherein, The connecting mechanism includes a piezoelectric ceramic connecting block. During the process of fixedly connecting the composite pulling wire and the connecting mechanism, the vibration generated on the surface of the tower barrel body is transmitted to the composite pulling wire through the upper hoop flange and the lower hoop flange. The composite pulling wire pulls the piezoelectric ceramic connecting block during vibration, thereby generating voltage at its two poles. By electrically connecting the two poles of the piezoelectric ceramic connecting block to an energy storage module, the electrical energy generated by the vibration is stored.

2. The reinforcement structure of a wind turbine tower barrel according to claim 1, characterized in that: Both the upper hoop flange and the lower hoop flange are composed of a pair of semi - circular discs. A bolt assembly hole is correspondingly provided on each of the pair of semi - circular discs. By installing fastening bolts into the bolt assembly holes, the clamping and fixing of the pair of semi - circular discs is completed.

3. The reinforcement structure of a wind turbine tower barrel according to claim 1, wherein: The connecting mechanism for connecting both ends of the composite pulling wire includes an upper connecting structure and a lower connecting structure. The upper connecting structure and the lower connecting structure are respectively arranged inside the upper hoop flange and the lower hoop flange. The piezoelectric ceramic connecting block is arranged on one side of the upper connecting structure. The upper connecting structure further includes a pressure sensor, and the pressure sensor is installed at the bottom of the piezoelectric ceramic connecting block. The lower connecting structure includes a fastening adjustment block, and threaded connecting rods are installed on the opposite sides of the fastening adjustment block and the piezoelectric ceramic connecting block.

4. The reinforcement structure of a wind turbine tower barrel according to claim 1, characterized in that: Both ends of the composite pulling wire are fixedly sleeved with internal - thread connecting sleeves, and the composite pulling wire is in threaded cooperation with the threaded connecting rods installed on the fastening adjustment block and the piezoelectric ceramic connecting block respectively through the internal - thread connecting sleeves provided at both ends.

5. The reinforcement structure of a wind turbine tower barrel according to claim 1, characterized in that: The power supply module for supplying power to a number of inner heating wires is arranged inside the tower barrel body. A number of the inner heating wires are connected in parallel with the power supply module. A wireless circuit breaker is respectively installed on the parallel circuit of each inner heating wire. The wireless circuit breaker is in communication connection with the main control MCU through a wireless communication module, and the main control MCU controls the corresponding wireless circuit breaker for on - off control.

6. The reinforcement structure of a wind turbine tower barrel according to claim 1, characterized in that: The energy storage module for collecting the electrical energy generated by the piezoelectric ceramic connecting block is arranged inside the upper hoop flange. The energy storage module is also electrically connected to the pressure sensor, and the energy storage module supplies power to the pressure sensor.

7. The reinforcement structure of a wind turbine tower barrel according to claim 3, characterized in that: The pressure sensor is in communication connection with the main control MCU, thereby sending the pressure data of each composite pulling wire to the main control MCU side.

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