CN-117449339-B - Novel bionic anti-icing wave-absorbing device of semi-submersible floating fan foundation structure

Abstract

The invention belongs to the technical field of ocean engineering equipment, and discloses a novel bionic anti-ice wave-absorbing device of a semi-submersible floating fan foundation structure. Based on the bionic concept and the energy consumption principle, a novel anti-ice vibration reduction wave-absorbing device with excellent performance is designed. The device comprises a semi-submersible floating foundation structure steel pile, a monitoring control system, a hydraulic driving system and a bionic anti-ice wave-absorbing structure system. In the ice-containing period, the upper conical surface of the bionic anti-ice wave-absorbing structure system is contacted with sea ice to induce the sea ice to generate bending damage, heat energy generated by friction resistance elimination is helpful for anti-ice, and in the ice-free period, the vertical concave-convex surface of the bionic anti-ice structure is contacted with waves to absorb waves. The natural vibration frequency of the offshore wind turbine can be adjusted so as to prevent resonance damage. In conclusion, the method is suitable for the wind power field in the high-latitude sea area of China, provides reliable technical support for ice-resistant wave elimination of the semi-submersible type floating fan, and realizes that the full climate maintains the safety and stability of the semi-submersible type floating fan foundation.

Inventors

• REN YUBIN
• Xu jiaolong
• ZHANG SHIXING
• ZUO DIANJUN
• YANG QING

Assignees

• 大连理工大学

Dates

Publication Date

20260512

Application Date

20231025

Claims (2)

1. 1. The novel bionic anti-icing and wave-absorbing device of the semi-submersible type floating fan foundation structure is characterized by comprising a semi-submersible type floating type foundation structure steel pile (1), a monitoring control system, a hydraulic driving system (3) and a bionic anti-icing and wave-absorbing structure system (4), wherein the hydraulic driving system (3) is arranged on the side face of the semi-submersible type foundation structure steel pile (1), the bionic anti-icing and wave-absorbing structure system (4) is sleeved on the outer side of the semi-submersible type foundation structure steel pile (1) and connected with the hydraulic driving system (3) to move up and down, the monitoring control system is arranged on the semi-submersible type foundation structure steel pile (1) and a fan tower and connected with the hydraulic driving system (3), the anti-icing and wave-absorbing structure system (4) is a honeycomb type bionic structure comprising 3 honeycomb type steel column groups (41) and damping fluid (45), the honeycomb type steel column groups (41) are connected with the hydraulic driving system (3) through rubber damping (42), the honeycomb type steel column groups (41) are of a closed structure, the honeycomb type steel column groups (41) comprise a plurality of inner steel column groups, the honeycomb type steel column groups are completely filled with the damping fluid and the damping fluid (45) is used for increasing friction and the friction and completely sealing the surface of the steel column groups (41) is filled with the damping fluid to perform the friction and is completely filled on the surface of the damping steel column groups; The bionic ice-resistant wave-absorbing structure system (4) is sequentially divided into an upper conical surface, a vertical surface and a lower conical surface from top to bottom, wherein the vertical surface is a concave-convex surface; The monitoring control system comprises a laser vibration meter (21), an acceleration sensor (22) and a controller (23), wherein the laser vibration meter (21) is arranged at the top of a semi-submersible floating foundation structure steel pile (1) and is used for measuring the movement speed, displacement and acceleration of sea ice, the acceleration sensor (22) is arranged on a fan tower and is used for measuring the vibration frequency of a fan, measurement data of the laser vibration meter (21) and the acceleration sensor (22) are transmitted to the controller (23), the controller (23) is connected with a hydraulic driving system (3) and is used for adjusting the height of a bionic anti-ice wave absorbing structure system (4), the hydraulic driving system (3) is used for adjusting the upper conical surface of the bionic anti-ice wave absorbing structure system (4) to be in contact with sea ice in a full ice period so that the sea ice generates bending damage, and the hydraulic driving system (3) is used for adjusting the vertical surface of the bionic anti-ice wave absorbing structure system (4) to be in contact with wave absorbing state in a no ice period, and the wave absorbing state is carried out by utilizing the concave-convex surface of the outer surface of a honeycomb structure of the bionic anti-ice wave absorbing structure of the bionic anti-ice wave structure system (4).
2. 2. The novel bionic anti-ice wave-absorbing device for the semi-submersible floating fan foundation structure of claim 1, wherein the cone angle of the upper conical surface is 30 degrees.

Description

Novel bionic anti-icing wave-absorbing device of semi-submersible floating fan foundation structure Technical Field The invention relates to the technical field of ocean engineering equipment, in particular to a novel bionic anti-ice wave-absorbing device of a semi-submersible floating fan foundation structure. Background With the gradual exhaustion of energy sources on landing, land energy sources are turned to wide ocean energy sources, and the great development of offshore wind power clean energy sources is an effective example for realizing the targets of carbon peak and carbon neutralization. In the global new energy system, offshore wind power technology has gradually become a research focus. At present, the offshore wind turbine is in a variety of floating wind turbine foundation structure forms from a near shallow sea fixed type step-by-step type to a deep and open sea floating type, wherein the semi-submersible floating wind power foundation is widely applied to a global offshore floating wind power plant due to the advantages of good stability and mobility, convenience in installation and the like. The wind energy storage density of the high-latitude sea areas (such as the nearby sea areas of Tianjin, liaoning and the like) in China is high, but icing phenomena of different degrees can occur in cold weather in winter, sea ice can cause serious threat to the operation and safety of an offshore wind turbine, particularly, the semi-submersible type floating wind turbine foundation structure needs to be considered, if one of the upright post structures is damaged, the whole structure can incline or even lose efficacy, and the upper structure can also generate strong vibration, so that the stability of the offshore floating wind turbine structure and the safe operation of a wind turbine unit can be seriously influenced. In addition, the environment where the deep-open sea floating fan is located is more severe, wave conditions are complex and changeable, the traditional anti-icing cone and other protective measures have no wave-absorbing function, the influence of waves on the upper structure can be amplified by the increased contact area, for example, an adjustable anti-icing cone structure applicable to a pile foundation of a marine structure, with application number CN202120559102.2, a detachable anti-icing device applicable to a marine nuclear power platform, with application number CN201410549262.3, an anti-icing cone device applicable to a marine nuclear power platform, with application number CN201711418762.3, an offshore wind generating set and an anti-icing device applicable to a shell pile leg self-elevating marine platform, with application number CN 201710378804.9. Therefore, when the semi-submersible floating fan is applied to a wind power field where sea ice appears, the optimal design of the base structure for resisting ice and eliminating waves is particularly critical, and the semi-submersible floating fan is a core problem to be solved urgently by those skilled in the art at present. Disclosure of Invention The invention aims to provide a novel bionic anti-ice wave-absorbing device of a semi-submersible floating fan foundation structure, which aims to effectively slow down damage of ice shock vibration to the fan foundation structure. The method has important significance for improving the stability of the semi-submersible floating fan foundation structure and the reliability of grid-connected operation of the wind turbine generator. In order to achieve the aim, the novel bionic anti-icing wave-absorbing device of the semi-submersible type floating fan foundation structure comprises a semi-submersible type floating foundation structure steel pile 1, a monitoring control system, a hydraulic driving system 3 and a bionic anti-icing wave-absorbing structure system 4, wherein the hydraulic driving system 3 is arranged on the side face of the semi-submersible type floating foundation structure steel pile 1, the bionic anti-icing wave-absorbing structure system 4 is sleeved on the outer side of the semi-submersible type floating foundation structure steel pile 1 and connected with the hydraulic driving system 3 to move up and down, the monitoring control system is arranged on the semi-submersible type floating foundation structure steel pile 1 and a fan tower and connected with the hydraulic driving system 3, the bionic anti-icing wave-absorbing structure system 4 is of a honeycomb bionic structure and comprises 3 honeycomb steel column groups 41 and damping fluid 45, the honeycomb steel column groups 41 are connected with the hydraulic driving system 3 through rubber damping 42, the honeycomb steel column groups 41 are of a closed structure and comprise a plurality of closed steel columns, the damping fluid 45 is filled in the inside and completely sealed, paint spraying treatment is carried out on the inner surfaces of the honeycomb steel column groups 41, and the damping fluid 45 is used