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CN-121990128-A - Floating fan self-adaptive vibration suppression and energy recovery double-effect intelligent device

CN121990128ACN 121990128 ACN121990128 ACN 121990128ACN-121990128-A

Abstract

The invention discloses a self-adaptive vibration-suppressing and energy-recovering double-effect intelligent device of a floating fan, which belongs to the technical field of wind power, wherein an air pressure balance pipe is arranged at the axle center of the upper section of a damping energy consumption system, a one-way valve is arranged at the lower section of a water flow partition plate, and a water flow partition plate moves downwards relative to the water flow partition plate in a tower barrel, in the device, the energy recovery system utilizes the movement of the platform and the tension of the mooring system, and the seawater drives the one-way valve and the turbofan blade to drive the generator to generate electricity, so that the efficient conversion of energy is realized, and the electric energy generated by the energy recovery system can directly supply energy to the auxiliary power system, thereby forming an energy internal circulation system and improving the overall energy utilization efficiency of the device.

Inventors

  • PENG HUAYI
  • XUE BOWEI
  • LIU HONGJUN

Assignees

  • 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院)

Dates

Publication Date
20260508
Application Date
20260213

Claims (8)

  1. 1. The self-adaptive vibration suppression and energy recovery double-effect intelligent device of the floating type offshore wind turbine is used for floating type offshore wind turbine, a mooring line (18) is distributed below the self-adaptive vibration suppression and energy recovery intelligent device, the upper end of the mooring line (18) is connected with a buoy (19), a tower drum (21) is installed at the top of the buoy (19), an energy recovery system (24) is installed at the bottom of the buoy (19), and a cabin (22) is installed at the top of the tower drum (21); the method is characterized in that: The damping energy consumption system (23) and the turbine blade (14) are arranged between the pontoon (19) and the mooring line (18); The damping energy consumption system (23) consists of an air pressure balance pipe (1), a buffer spring (3), a damping spring (4), a partition plate (5), a water flow partition plate (11), a one-way valve (13), a turbine blade (14) and a connecting rod (17); The damping energy consumption system is characterized in that a pneumatic balance pipe (1) is arranged at the axis of the middle upper section of the damping energy consumption system (23), buffer springs (3) are distributed at the lower section of the pneumatic balance pipe (1), support rods (2) are arranged at two sides of the pneumatic balance pipe (1), damping springs (4) are arranged at the bottoms of the support rods (2), and a baffle plate (5) is arranged at the lower end of each damping spring (4); the bottom of the partition plate (5) is provided with a water flow partition plate (11), the lower section of the water flow partition plate (11) is provided with a one-way valve (13), the outer ring of the one-way valve (13) is circumferentially provided with a vortex blade (14), and the bottom of the one-way valve (13) at the lower end of the water flow partition plate (11) is provided with a connecting rod (17); The tension of the mooring line (18) is transmitted to the damping spring (4) through the connecting rod (17) and the partition plate (5), and the tension of the damping spring (4) drives the partition plate (5) and the water stop plate (8) to move relatively in the device, and the water stop plate (8) moves downwards relative to the water flow partition plate (11) in the tower (21).
  2. 2. The floating fan self-adaptive vibration suppression and energy recovery double-effect intelligent device according to claim 1 is characterized in that the energy recovery system (24) consists of a one-way valve (13), a turbine blade (14), a sleeve II (15), a power generation device (16) and a connecting rod (17); the bottom of the check valve (13) is provided with a sleeve II (15), a power generation device (16) is arranged on the outer ring of the partition board (5), and a connecting rod (17) penetrates through the water flow partition board (11), the seawater (12), the check valve (13), the turbine blade (14), the sleeve II (15) and the power generation device (16).
  3. 3. The floating fan self-adaptive vibration suppression and energy recovery double-effect intelligent device according to claim 2 is characterized in that damping liquid or seawater (12) moves between a partition plate (5) and a water flow partition plate (11) and is extruded and sucked by a one-way valve (13).
  4. 4. The floating fan self-adaptive vibration suppression and energy recovery double-effect intelligent device according to claim 2 is characterized in that connecting rods (17) are arranged at the axes of the fan blades (14), the sleeve II (15) and the power generation device (16).
  5. 5. The floating fan self-adaptive vibration suppression and energy recovery double-effect intelligent device according to claim 4, wherein the power generation device (16) and the turbine blades (14) are circumferentially distributed with one-way valves (13).
  6. 6. The self-adaptive vibration suppression and energy recovery double-effect intelligent device of the floating fan according to claim 1 is characterized in that a sleeve I (6) is sleeved on a connecting rod (17) between the partition plate (5) and the water-stop plate (8), an electric driving device (7) is sleeved on the outer ring of the sleeve I (6), and power turbofan blades (9) are distributed in the water-stop plate (8).
  7. 7. The floating fan self-adaptive vibration suppression and energy recovery double-effect intelligent device according to claim 2 is characterized in that seawater (12) is distributed at the lower section of the water flow partition plate (11), and an air pressure balance pipe (1), a support rod (2), a buffer spring (3), a damping spring (4), a partition plate (5), a sleeve I (6), an electric driving device (7), a water stop plate (8), a power turbofan blade (9), the water flow partition plate (11), the seawater (12), a one-way valve (13) and a turbofan blade (14) are distributed in the cylinder wall (10).
  8. 8. The self-adaptive vibration suppression and energy recovery double-effect intelligent device of the floating fan according to claim 7 is characterized in that the supporting rod (2) and the damping spring (4) are of two groups of structures, the lower ends of the damping spring (4) are fixedly connected with the two ends of the partition plate (5) respectively, and the pontoon (19) floats on the sea surface.

Description

Floating fan self-adaptive vibration suppression and energy recovery double-effect intelligent device Technical Field The invention relates to a vibration suppression and energy recovery double-effect intelligent device, in particular to a floating fan self-adaptive vibration suppression and energy recovery double-effect intelligent device, and belongs to the technical field of wind power. Background With the continuous development of society, people are increasingly demanding energy, and environmental pollution caused by traditional fuel energy and non-renewable specificity thereof make application and popularization of renewable clean energy more important, and compared with other renewable clean energy, wind energy is paid attention to due to the richness, feasibility and maturity of fans. At present, the offshore wind energy extraction device is mainly a fan, which is divided into two main types according to the construction water depth, one type is a fixed fan, the fixed fan is usually constructed in an offshore area and is positioned in a shallow water area with the water depth of 0-50 meters, the common fixed fan comprises a single pile type, a gravity foundation type, a tripod type and the like, the other type is a floating type fan, due to the increase of the water depth, when the water depth exceeds 50 meters, namely, the fixed fan is positioned in a deep water area, the foundation cost is gradually increased, and the technical feasibility difficulty is also continuously increased. At this time, the foundation of the wind turbine platform constructed on the seabed is difficult to fix, so that the wind turbine is constructed on the floating platform, and the common floating wind turbine is classified into a barge type, a tension leg type, a semi-submersible type and the like according to the floating platform. The sea surface roughness of deep sea area is low for the offshore wind field is compared on land, and its wind speed is higher and extreme wind speed (like typhoon) is more violent, simultaneously because ocean current effect and the uneven influence of sea temperature distribution lead to the unrestrained stream of wind of deep sea environment more complicated, under the effect of unrestrained stream of wind, the platform motion of floating type can take place showing the motion, the platform motion of a wide margin can lead to wind wheel and inflow direction skew, take place great yaw error promptly, thereby greatly reduced wind energy utilization efficiency, simultaneously, the motion of platform also can lead to blade pitch angle frequent change, increase blade fatigue load, lead to the fan output power fluctuation. In order to keep the stability of a fan platform, most of the existing floating fans are directly connected with a mooring system, when the platform is in a complex environment, the motion response of the platform changes more severely due to the combined action of wind, wave and current, so that the load on a mooring line changes more severely, and the mooring line bears larger load generally. The floating fan vibration suppression and energy recovery technology is divided into two main types, namely passive vibration suppression means and active vibration suppression means, wherein the passive vibration suppression means generally comprise the steps of optimizing the pneumatic shape of a blade, arranging a Tuned Mass Damper (TMD), arranging a tuned liquid column damper (TLD) and the like. The optimized aerodynamic profile of the blade has poor robustness and high initial cost when facing to a randomly-changed wind speed environment. In addition, TMDs or TLDs often require a large space to occupy the fan, add weight and complexity to the structure, and generally provide significant vibration control over only a single frequency range, with poor adaptability to frequency changes. Along with the development of technology, the traditional passive vibration suppression control means has been improved and expanded to a certain extent, and a sensor is added to monitor the vibration of the fan in real time on the basis of a passive Tuned Mass Damper (TMD) or a tuned liquid column damper (TLD). By varying the parameters of the damper to accommodate the frequency variation of the fan under different environmental conditions, the additional sensors and actuators add significant cost such that such control means are not widely used. Active vibration suppression is also an effective control means, and for floating fans, the most common active control means are yaw control and pitch control, wherein yaw control mainly reduces vibration caused by asymmetric pneumatic loads by adjusting the angle of the nacelle. However, the requirement of yaw control on the response time of the change of the wind direction is high, fatigue load can be generated, and the service life of the fan is reduced. The pitch control mainly increases the average pitch angle to reduce the attack angle of the blades,