CN-122009436-A - Floating type fan foundation launching platform and floating type fan foundation launching method

CN122009436ACN 122009436 ACN122009436 ACN 122009436ACN-122009436-A

Abstract

The application relates to the field of marine technology industry, in particular to a floating fan foundation launching platform and a floating fan foundation launching method, wherein the floating fan foundation launching platform comprises a bearing base, a launching floating platform and a driving unit, the driving unit comprises a first control component, a second control component and a third control component, the first control component comprises a bearing slideway and a transmission assembly, the second control component comprises a connecting pulley and a tail pulley, the third control component comprises a bearing guide rail and a guide wheel, and the floating fan foundation is converted from a supporting state to a floating state through the first control component, the second control component and the third control component. According to the application, in the process of launching a floating fan foundation, controllable gradual load transfer is realized, attitude constraint is standardized, constraint of a dry dock or a large semi-submersible ship allocation period is avoided, construction period flexibility and parallel construction capability are improved, and the method is suitable for deployment of a large-scale offshore wind farm.

Inventors

HUANG TENG
XU KUN
ZHAO SHUJIE
ZHENG XIPING
DU JUNFENG
WEI XIANHUA
ZHU YUANYAO
MENG XINGYU
RONG JUNJIE
LIU PENG

Assignees

中国铁建港航局集团有限公司
中国海洋大学
中国铁建股份有限公司

Dates

Publication Date: 20260512
Application Date: 20251215

Claims (9)

1. A floating fan foundation lower level, comprising: a load bearing base for transferring a floating fan foundation, comprising: The self-propelled modular transport vehicle transportation floating type fan foundation moves in the traffic circulation area; A slope guiding area which is inclined with respect to the traffic flow area; A load bearing area provided with a first pulley groove; A launch pad for carrying the floating fan foundation from which the self-propelled modular transport vehicle is traveling and for sliding obliquely relative to the carrying base under the guidance of the ramp guiding area to transfer the floating fan foundation from a supporting state to a floating state, the launch pad comprising: A bearing surface which is a plane and is used for keeping the floating fan foundation in a supporting state; a contact surface which is obliquely arranged and is matched with the slope guiding area; A tail end surface provided with a second pulley groove; one or more ballast compartments for loading or discharging ballast water to adjust the draft of the launch pad; a driving unit for driving the launching pad to slide obliquely with respect to the bearing base under the guidance of the slope guiding region, comprising: A first control member comprising: the bearing slideway is arranged close to the slope guiding area and is distributed in the same direction with the slope guiding area; the transmission assembly is a gear set; a stop assembly configured to prevent movement of the drive assembly relative to the load ramp or to permit movement of the drive assembly relative to the load ramp; a second control member, comprising: A connecting pulley provided in the first pulley groove; The tail pulley is obliquely opposite to the connecting pulley and is connected with the connecting pulley through a rope, and the rope is released or recovered according to a set speed; a third control member, comprising: a load-bearing guide rail arranged on the slope guiding area; the guide wheel is arranged on the inclined surface and can move along the bearing guide rail.
2. The floating fan foundation lower level of claim 1 wherein: The bearing slideway is provided with a slideway rack, wherein the slideway rack comprises an upper tooth surface and a lower tooth surface which are oppositely arranged; the gear sets are arranged on two sides of the launching pad and correspond to the slideway racks, each gear set comprises an upper gear set and a lower gear set, each upper gear set comprises a first upper gear and a second upper gear which are arranged at intervals, each lower gear set comprises a first lower gear and a second lower gear which are arranged at intervals, each first upper gear and each second upper gear are respectively meshed with the corresponding upper tooth surface, and each first lower gear and each second lower gear are respectively meshed with the corresponding lower tooth surface.
3. The floating fan foundation lower level of claim 2 wherein: The limiting assembly comprises a first limiting block and a second limiting block, wherein the first limiting block is provided with an upper inter-tooth meshing rib, the second limiting block is provided with a lower inter-tooth meshing rib, the first limiting block and the second limiting block are oppositely arranged, the first limiting block and the second limiting block are rotated to fold inwards, the upper inter-tooth meshing rib is embedded into an upper tooth surface, the lower inter-tooth meshing rib is embedded into a lower tooth surface to prevent the transmission assembly from moving relative to the bearing slideway, the first limiting block and the second limiting block are rotated outwards, the upper inter-tooth meshing rib is separated from the upper tooth surface, and the lower inter-tooth meshing rib is separated from the lower tooth surface to allow the transmission assembly to move relative to the bearing slideway.
4. A floating fan foundation lower level as set forth in claim 3 wherein: The traffic flow area is internally provided with a traffic flow line, and the traffic flow line is a travel path which is preset and marked on the bearing base and is used for limiting the space range of the self-propelled modular transport vehicle moving in the traffic flow area; the floating fan foundation comprises three arm units which are symmetrically distributed at 120-degree radial centers, wherein the arm units which keep the same direction with a moving path defined by a traffic flow line are guide arms, three self-propelled modularized transport vehicles are sequentially arranged below the guide arms, and three self-propelled modularized transport vehicles are arranged below each arm unit on two sides of the guide arms in parallel.
5. A floating fan foundation lower level as set forth in claim 3 wherein: the launching pad is wedge-shaped, linearly thickens from the minimum thickness of the water side close to the target water area to the maximum thickness, and then linearly thins until the minimum thickness of the land side far away from the target water area is reached, wherein the maximum thickness of the launching pad is positioned between the starting point of the inclined surface and the bearing surface.
6. A floating fan foundation lower level as set forth in claim 3 wherein: The transmission assembly comprises a plurality of groups of gear sets, and each group of gear sets is connected with the side wall of the launching pad through a connecting plate.
7. A floating fan foundation lower level as set forth in claim 3 wherein: the tail pulleys are provided with a plurality of groups, the connecting pulleys are provided with a plurality of groups, and the tail pulleys are arranged in one-to-one correspondence with the connecting pulleys.
8. A floating fan foundation lower level as set forth in claim 3 wherein: The guide wheels are provided with a plurality of groups, each group of guide wheels is arranged corresponding to one group of guide rails, and the guide wheels are distributed on the inclined surface in an array mode.
9. A floating fan foundation launch method applied to the floating fan foundation launch platform of any one of claims 1 to 8, the floating fan foundation launch platform further comprising a controller, the floating fan foundation launch method comprising: The controller drives the first limiting block and the second limiting block to rotate and fold inwards, so that the upper inter-tooth meshing convex edges are embedded into the upper tooth surface, the lower inter-tooth meshing convex edges are embedded into the lower tooth surface, and the lower water floating platform is kept level with the traffic circulation area of the bearing base; The controller keeps the first limiting block and the second limiting block to be folded inwards in a rotating way, the upper tooth space meshing convex edge is embedded into the upper tooth surface, the lower tooth space meshing convex edge is embedded into the lower tooth surface, and the lower floating platform is kept level with a traffic circulation area; The controller drives the gear set in the first control component to rotate along the sliding rack, releases the tail pulley of the second control component and the rope in the connecting pulley, and enables the floating platform to slide to a target water area along a slope guiding area under the guidance of the bearing guide rail and the guiding component; The floating fan foundation in the supporting state moves downwards and enters the target water area, and is changed into a floating state from the supporting state; after the floating state is changed into the floating state, the controller outputs a water injection instruction to inject water into the ballast cabin, so that the launching pad continuously slides to the target water area along the slope guiding area under the guidance of the bearing guide rail and the guiding assembly; The controller sends a communication signal to the tug, and the tug pulls the floating fan foundation in a floating state to leave the target water area; The controller receives a feedback signal fed back by the tug and outputs a drainage instruction to drain water in the ballast cabin, drives the gear set in the first control component to reversely rotate along the sliding rack, and recovers a tail pulley of the second control component and a rope in the connecting pulley, so that the launching pad slides to the land side along the slope guiding area under the guidance of the bearing guide rail and the guiding component until the launching pad is kept level with the traffic circulating area; the controller drives the first limiting block and the second limiting block to fold inwards, so that the upper tooth space engaging lug is embedded into the upper tooth surface, and the lower tooth space engaging lug is embedded into the lower tooth surface.

Description

Floating type fan foundation launching platform and floating type fan foundation launching method Technical Field The invention relates to the field of marine technology industry, in particular to a floating type fan foundation launching platform and a floating type fan foundation launching method. Background The offshore wind generating set comprises a tower, a hub, a cabin, blades and the like. The floating type fan foundation is a floating body which supports an offshore wind generating set and enables the floating type wind generating set to operate in deep water or an area where a fixed base cannot be adopted. With the continuous promotion of global deep sea wind power development, the floating wind turbine generator set plays an increasingly important role in coping with the complex environment of deep sea and expanding offshore wind power resources. The floating fan foundation is gradually enlarged, the size and the weight of the monomer are obviously increased, and higher requirements are set for construction and water drainage equipment. The floating type fan foundation launching refers to the operation of transferring the floating type fan foundation from the land or a bearing platform into water to keep the floating state and enter offshore service or towing. In the prior art, a semi-submersible ship and a dry dock are mainly adopted for floating type fan foundation launching. The semi-submersible has relatively large buoyancy tanks below the water surface, and the floating state of the hull below the water surface is maintained by adjusting the water level of the buoyancy tanks. However, in order to meet the requirement of the floating fan foundation for launching, the semi-submersible vessel needs to be widened and modified, for example, as disclosed in Chinese patent application (CN 218400914U), two outward-floating brackets are symmetrically arranged on the left side and the right side of the tail of the semi-submersible vessel, and a single bracket transversely floats outwards by 8-9 meters, so that the total width of the vessel body is increased from 56 meters to 72.8 meters. However, widening the reformation changes the hydrodynamic characteristics of the hull and may affect the stability, maneuverability, and speed of the semi-submersible, resulting in a decrease in its ability to handle tidal loads. Dry dock is a facility for ship construction that lifts a ship from water by adjusting the water level, providing a dry environment for various operations. But the dry dock capable of accommodating the large floating fan foundation is a scarce resource, and the space size of the dry dock is fixed, so that the maximum size and the shape design flexibility of the floating body and the subassemblies are limited, and the large-scale industrialized application is not facilitated. Disclosure of Invention In view of the above, the present application is directed to a floating fan foundation lower level including a carrying base for transferring a floating fan foundation, comprising: The self-propelled modular transport vehicle transportation floating type fan foundation moves in the traffic circulation area; a slope guiding region, the slope guiding region being disposed obliquely with respect to the traffic flow region; A load bearing area provided with a first pulley groove; A launch pad for carrying the floating fan foundation from which the self-propelled modular transport vehicle is traveling and for obliquely sliding relative to the carrying base under guidance of the sloping surface guiding area to change the floating fan foundation from a supporting state to a floating state, the launch pad comprising: the bearing surface is a plane and is used for keeping the floating fan foundation in a supporting state; a contact surface which is obliquely arranged and is matched with the slope guiding area; the tail end face is provided with a second pulley groove; One or more ballast compartments for loading or discharging ballast water to adjust the draft of the launch pad; a driving unit for driving the launching pad to slide obliquely with respect to the bearing base under the guidance of the slope guiding region, comprising: the first control means may be arranged to control the first control means, the first control member includes: The bearing slide way is arranged close to the slope guiding area and distributed in the same direction with the slope guiding area; The transmission assembly is a gear set; A stop assembly configured to prevent movement of the drive assembly relative to the load ramp or to permit movement of the drive assembly relative to the load ramp; the second control means is provided for controlling the operation of the first control means, the second control member includes: the connecting pulley is arranged in the first pulley groove; The tail pulley is obliquely opposite to the connecting pulley and is connected with the connecting pulley through a rope, and the rope is releas