An airbag platform for offshore wind turbine operation and an operation method thereof

Abstract

The present invention provides an airbag platform for offshore wind turbine operation and an operation method thereof, comprising a first platform, a first column and a second column; the first platform has a first and a second end, the first and the second columns are symmetrically fixed on both sides of the first end, and the second end is provided with a hinge mechanism, which is used to be fixedly connected to the wind turbine; the first and the second columns are retractable structures, and the first and the second airbags are respectively installed at the bottom of the first and the second columns; when the airbag platform is in the first working stage, the first and the second airbags are in an uninflated state; when the airbag platform is in the second working stage, the first and the second airbags are inflated through the first and the second charging and discharging pipelines respectively using the first air pump and the second air pump. The airbag platform for offshore wind turbine operation and the operation method thereof provided by the present invention adjust the inflation state of the first and the second airbags by detecting the deep sea wave base, so that the hoisting process during offshore operation is more stable.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind power generation, and in particular relates to an airbag platform for offshore wind turbine operations and an operation method thereof. Background Art

[0002] The blades of wind turbines need to be replaced, but the blades are heavy and the tower is high. Especially when operating at sea, it is more difficult than operating on land due to the influence of environmental factors such as wave motion.

[0003] The propagation speed of waves in deep water can reach tens of kilometers per hour, but the seawater particles do not undergo significant horizontal displacement. This is because when the waves move, the seawater particles only make regular reciprocating circular motions at the equilibrium position. When adjacent water particles move to the crest of the wave in turn, the crest of the wave moves forward accordingly. Due to the internal friction of water, the circular motion radius of the water particles decreases as the water depth increases. When a certain depth is reached, the water particles are in a stationary state. How to use the stationary state of water particles to carry out offshore wind turbine operations remains to be explored and studied.

[0004] Therefore, it is necessary to provide an airbag platform for offshore wind turbine operations and an operating method thereof to solve the above problems. Summary of the invention

[0005] The airbag platform for offshore wind turbine operation and the operating method thereof provided by the present invention adjust the inflation state of the first airbag and the second airbag by detecting the deep sea wave base, so that the hoisting process during offshore operation is more stable.

[0006] To achieve the above object, the present invention provides the following technical solutions.

[0007] Provided is an airbag platform for offshore wind turbine operations, comprising a first platform, a first column, and a second column;

[0008] The first platform has a first end and a second end, the first column and the second column are symmetrically fixed on both sides of the first end, and the second end is provided with a hinge mechanism, and the hinge mechanism is used to be fixedly connected to the fan;

[0009] A load and a winch are placed on the first platform, and the winch is used to drive a crane installed on the wind turbine to hoist the load;

[0010] The first column and the second column are retractable structures, and the first column and the second column are respectively installed with a first airbag and a second airbag at the bottom;

[0011] When the airbag platform is in the first working stage, the first airbag and the second airbag are in an uninflated state, and the first working stage is when the first airbag and the second airbag are located above the deep-sea wave base;

[0012] When the airbag platform is in the second working stage, a first air pump and a second air pump are used to charge the first airbag and the second airbag with a preset amount of gas through the first charging and discharging pipeline and the second charging and discharging pipeline respectively, and the second working stage is when the first airbag and the second airbag are located at or below the deep-sea wave base;

[0013] A preset amount of gas is charged into the first airbag and the second airbag, and the volume of the preset amount of gas is specifically calculated by the following formula:

[0014] ,

[0015] in, The volume of the first airbag and the second airbag filled with a preset amount of gas, is the sum of the weights of the first platform, the load and the winch, is the distance between the center of gravity of the first platform, the load and the winch and the articulated mechanism, is the vertical distance between the hinge mechanism and the connecting line between the first airbag and the second airbag on the plane where the first platform is located, is the water density, is the acceleration due to gravity;

[0016] The height of the deep-sea wave base is obtained by the following method: assuming that the wavelength of the sea surface wave is λ, the deep-sea wave base is located at a depth of λ / 2 below the sea surface;

[0017] The first platform is equipped with a sensor, which is used to detect the levelness of the first platform in real time. When the levelness of the first platform is lower than a first threshold, the first airbag and the second airbag are inflated, and when the levelness of the first platform is higher than the first threshold, the first airbag and the second airbag are deflated.

[0018] Preferably, when the load changes, the first airbag and the second airbag are inflated or deflated respectively in real time, and the amount of inflation or deflation is specifically calculated by the following formula:

[0019] ,

[0020] in, is the amount of inflation or deflation of the first airbag or the second airbag, respectively, is the load weight change value, is the change value of the winch tension, is the distance between the center of gravity of the load changing part and the hinge mechanism, It is the distance between the winch rope and the hinge mechanism.

[0021] Preferably, a plurality of control cabinets are installed on the first platform, and the number of the plurality of control cabinets corresponds to the number of the first columns and the second columns. The plurality of control cabinets are respectively used for detecting the distance between the first airbag and the second airbag and the deep-sea wave base in real time, and adjusting the height of the first column and the second column in real time.

[0022] Preferably, a control cabinet is installed on the first platform, and the control cabinet is used to detect the distance between the first airbag and the second airbag and the deep-sea wave base in real time, and adjust the height of the first column and the second column in real time.

[0023] Preferably, a first expansion interface is provided at the first end of the first platform, and the first expansion interface is used to connect to the second platform.

[0024] Preferably, the second platform has at least one, the second platform has a third end and a fourth end, the third end and the fourth end are respectively provided with a second expansion interface and a third expansion interface, the third expansion interface has the same structure as the first expansion interface, and the second expansion interface is matched and connected with the first expansion interface; the third column and the fourth column are symmetrically fixed on both sides of the third end, the structure of the third column and the fourth column is exactly the same as the first column and the second column, and the bottom of the third column and the fourth column are respectively installed with a third airbag and a fourth airbag; when the airbag platform is in the first working stage, the third airbag and the fourth airbag are in an uninflated state, and the first working stage is when the third airbag and the fourth airbag are located above the deep-sea wave base; when the airbag platform is in the second working stage, the third air pump and the fourth air pump are used to charge the third airbag and the fourth airbag with a preset amount of gas through the third charging and discharging pipeline and the fourth charging and discharging pipeline respectively.

[0025] Preferably, the articulated mechanism is fixed to the sub-tower structure of the wind turbine via a fixing ring, the diameter of the fixing ring matches the sub-tower structure of the wind turbine, the articulated mechanism comprises a bearing connection structure or a hinge connection structure, the articulated mechanism is fixed to the base of the sub-tower structure of the wind turbine, and the base of the sub-tower structure is fixedly erected on the seabed.

[0026] A method for operating the airbag platform for offshore wind turbine operation is also provided, comprising the following steps:

[0027] The first column and the second column are symmetrically fixed on both sides of the first end of the first platform, and the first platform and the fan are fixedly connected by using the hinge mechanism;

[0028] When the first airbag and the second airbag are located above the deep-sea wave base, the first airbag and the second airbag are in an uninflated state, and the heights of the first column and the second column are adjusted; when the first airbag and the second airbag are located at or below the deep-sea wave base, the first air pump and the second air pump are used to charge the first airbag and the second airbag with a preset amount of gas through the first charging and discharging pipeline and the second charging and discharging pipeline, respectively, and the first platform is adjusted to be parallel to the horizontal plane according to the requirements of offshore operations;

[0029] The winch is started to drive the crane installed on the fan to lift the load, and then the gas volume of the airbag is dynamically adjusted as needed to ensure that the platform is in a horizontal position.

[0030] Compared with the prior art, the technical solution of the embodiment of the present invention has beneficial effects.

[0031] The present invention provides an airbag platform for offshore wind turbine operations and an operation method thereof. When the airbag platform is in a first working stage, the first airbag and the second airbag are in an uninflated state. The first working stage is when the first airbag and the second airbag are located above the deep-sea wave base. When the airbag platform is in a second working stage, a first air pump and a second air pump are used to charge the first airbag and the second airbag with a preset amount of gas through a first charging and discharging pipeline and a second charging and discharging pipeline, respectively. The second working stage is when the first airbag and the second airbag are located at or below the deep-sea wave base. When it is detected that the first airbag and the second airbag are located at or below the deep-sea wave base, they are inflated again, so that the first airbag and the second airbag can be kept at or below the deep-sea wave base in the inflated state. Since the effect of waves on the deep-sea wave base is very weak, the hoisting process during offshore operations is smoother.

[0032] Furthermore, the first platform is equipped with a sensor, and the sensor is used to detect the levelness of the first platform in real time. When the levelness of the first platform is lower than a first threshold, the first airbag and the second airbag are inflated, and when the levelness of the first platform is higher than the first threshold, the first airbag and the second airbag are deflated. When the weight of the load on the first platform changes, the volumes of the first airbag and the second airbag can be adjusted in real time to maintain the stability of the first platform, so that the offshore operation is more stable.

[0033] Furthermore, a plurality of control cabinets are installed on the first platform, and the number of the plurality of control cabinets corresponds to the number of the first columns and the second columns. The plurality of control cabinets are respectively used for real-time detection of the distance between the first airbag and the second airbag and the deep-sea wave base, and real-time adjustment of the height of the first column and the second column, thereby making the first platform more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of an airbag platform for offshore wind turbine operations according to an embodiment of the present invention;

[0035] Figure 2 Schematic diagram of the force of the airbag platform used for offshore wind turbine operation in an embodiment of the present invention;

[0036] Figure 3 is a schematic structural diagram of an airbag platform for offshore wind turbine operations in another embodiment of the present invention;

[0037] Figure 4 It is a structural schematic diagram of an airbag platform for offshore wind turbine operation in another embodiment of the present invention;

[0038] Figure 5 is a schematic structural diagram of an airbag platform for offshore wind turbine operations in another embodiment of the present invention;

[0039] Figure 6 It is a flow chart of an operation method using an airbag platform for offshore wind turbine operations in one embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 11. first platform; 111. first end; 112. second end; 113. first expansion interface; 114. hinge mechanism; 115. fixing ring;

[0042] 12, second platform; 121, third end; 122, fourth end; 123, second expansion interface; 124, third expansion interface;

[0043] 13. first column; 131. first air charging and discharging pipeline; 132. first air pump; 133. first air bag;

[0044] 14. second upright column; 141. second air filling and discharging pipeline; 142. second air pump; 143. second air bag;

[0045] 15. Fan; 151. Under-tower structure; 152. Base;

[0046] 161, third upright column; 1611, third air charging and discharging pipeline; 1612, third air pump; 1613, third air bag;

[0047] 162, fourth column; 1621, fourth air filling and discharging pipeline; 1622, fourth air pump; 1623, fourth air bag;

[0048] 17. Load; 18. Winch; 19. Crane; 20. Control cabinet. DETAILED DESCRIPTION

[0049] In order to make the purpose, features and beneficial effects of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described below are only used to explain the present invention, rather than to limit the present invention. In addition, the same or similar reference numerals may be used in the figures to refer to the same or similar elements in different embodiments, and the description of the same or similar elements in different embodiments and the description of the prior art elements, features, effects, etc. may be omitted.

[0050] The airbag platform for offshore wind turbine operation and the operating method thereof provided by the present invention adjust the inflation state of the first airbag and the second airbag by detecting the deep sea wave base, so that the hoisting process during offshore operation is more stable.

[0051] Now refer to Figures 1 to 5 , an embodiment of the present invention provides an airbag platform for offshore wind turbine operations, including a first platform 11, a first column 13, and a second column 14;

[0052] The first platform 11 has a first end 111 and a second end 112, the first column 13 and the second column 14 are symmetrically fixed on both sides of the first end 111, and the second end 112 is provided with a hinge mechanism 114, and the hinge mechanism 114 is used to be fixedly connected to the fan 15;

[0053] A load 17 and a hoist 18 are placed on the first platform 11, and the hoist 18 is used to drive a crane 19 installed on the fan 15 to hoist the load 17;

[0054] The first column 13 and the second column 14 are retractable structures, and the first column 13 and the second column 14 are respectively installed with a first airbag 133 and a second airbag 143 at the bottom;

[0055] When the airbag platform is in the first working stage, the first airbag 133 and the second airbag 143 are in an uninflated state, and the first working stage is when the first airbag 133 and the second airbag 143 are located above the deep-sea wave base;

[0056] When the airbag platform is in the second working stage, the first air pump 132 and the second air pump 142 are used to charge the first airbag 133 and the second airbag 143 with a preset amount of gas through the first charging and discharging pipeline 131 and the second charging and discharging pipeline 141 respectively. The second working stage is when the first airbag 133 and the second airbag 143 are located at or below the deep-sea wave base.

[0057] In some embodiments, a preset amount of gas is charged into the first airbag 133 and the second airbag 143, and the volume of the preset amount of gas is specifically calculated by the following formula:

[0058] ,

[0059] in, The volume of the first airbag 133 and the second airbag 143 is filled with a preset amount of gas, is the sum of the weights of the first platform 11, the load 17 and the winch 18, is the distance between the center of gravity of the first platform 11, the load 17 and the winch 18 and the articulated mechanism 114, is the vertical distance between the hinge mechanism 114 and the connecting line between the first airbag 133 and the second airbag 143 on the plane where the first platform 11 is located, is the water density, is the acceleration due to gravity;

[0060] The height of the deep-sea wave base is obtained by the following method: assuming that the wavelength of the sea surface wave is λ, the deep-sea wave base is located at a depth of λ / 2 below the sea surface;

[0061] The first platform 11 is installed with a sensor, which is used to detect the levelness of the first platform 11 in real time. When the levelness of the first platform 11 is lower than a first threshold, the first airbag 133 and the second airbag 143 are inflated. When the levelness of the first platform 11 is higher than the first threshold, the first airbag 133 and the second airbag 143 are deflated.

[0062] In some embodiments, when the load 17 changes, the first airbag 133 and the second airbag 143 are inflated or deflated respectively in real time, and the amount of inflation or deflation is specifically calculated by the following formula:

[0063] ,

[0064] in, is the amount of inflation or deflation of the first airbag 133 or the second airbag 143, respectively, is the weight change value of the load 17, is the change value of the pulling force of the winch 18, is the distance between the center of gravity of the variable part of the load 17 and the hinge mechanism 114, It is the distance between the pull rope of the winch 18 and the hinge mechanism 114.

[0065] In some embodiments, a plurality of control cabinets 20 are installed on the first platform 11, and the number of the plurality of control cabinets 20 corresponds to the number of the first columns 13 and the second columns 14. The plurality of control cabinets 20 are respectively used for real-time detection of the distance between the first airbag 133 and the second airbag 143 and the deep-sea wave base, and real-time adjustment of the height of the first column 13 and the second column 14.

[0066] Specifically, only one control cabinet 20 may be installed on the first platform 11 to detect the distance between the first airbag 133 and the second airbag 143 and the deep-sea wave base in real time and adjust the height of the first column 13 and the second column 14 in real time.

[0067] In some embodiments, the first end 111 of the first platform 11 is provided with a first expansion interface 113 , and the first expansion interface 113 is used to connect to the second platform 12 .

[0068] In some embodiments, there is at least one second platform 12, and the second platform 12 has a third end 121 and a fourth end 122, and the third end 121 and the fourth end 122 are respectively provided with a second expansion interface 123 and a third expansion interface 124, and the third expansion interface 124 has the same structure as the first expansion interface 113, and the second expansion interface 123 is matched with the first expansion interface 113; the third column 161 and the fourth column 162 are symmetrically fixed on both sides of the third end 121, and the structure of the third column 161 and the fourth column 162 is completely the same as the first column 13 and the second column 14. Similarly, the third airbag 1613 and the fourth airbag 1623 are respectively installed at the bottom of the third column 161 and the fourth column 162; when the airbag platform is in the first working stage, the third airbag 1613 and the fourth airbag 1623 are in an uninflated state, and the first working stage is when the third airbag 1613 and the fourth airbag 1623 are located above the deep-sea wave base; when the airbag platform is in the second working stage, the third air pump 1612 and the fourth air pump 1622 are used to charge the third airbag 1613 and the fourth airbag 1623 with a preset amount of gas through the third charging and discharging pipeline 1611 and the fourth charging and discharging pipeline 1621 respectively.

[0069] Specifically, according to the needs of offshore operations, there can be multiple second platforms 12, for example, there can be two, three or more. Through respective expansion interfaces and corresponding columns, the offshore operation platform has sufficient length to meet the requirements of loads of different specifications and the placement of winches.

[0070] In some embodiments, the articulated mechanism 114 is fixed to the sub-tower structure 151 of the wind turbine 15 via a fixing ring 115, the diameter of the fixing ring 115 matches the sub-tower structure 151 of the wind turbine 15, the articulated mechanism 114 includes a bearing connection structure or a hinge connection structure, the articulated mechanism 114 is fixed to a base 152 of the sub-tower structure of the wind turbine 15, and the base 152 of the sub-tower structure 151 is fixedly erected on the seabed.

[0071] Reference now Figure 6 The present invention also provides an operation method using the above-mentioned airbag platform for offshore wind turbine operation, comprising the following steps:

[0072] S501: symmetrically fixing the first column 13 and the second column 14 on both sides of the first end 111 of the first platform 11, and using the hinge mechanism 114 to fixedly connect the first platform 11 and the fan 15;

[0073] S502: When the first airbag 133 and the second airbag 143 are located above the deep-sea wave base, the first airbag 133 and the second airbag 143 are in an uninflated state, and the heights of the first column 13 and the second column 14 are adjusted. When the first airbag 133 and the second airbag 143 are located at or below the deep-sea wave base, the first air pump 132 and the second air pump 142 are used to charge the first airbag 133 and the second airbag 143 with a preset amount of gas through the first charging and discharging pipeline 131 and the second charging and discharging pipeline 141, respectively, and the first platform 11 is adjusted to be parallel to the horizontal plane according to the requirements of offshore operations;

[0074] S503: Start the winch 18 to drive the crane 19 installed on the fan 15 to lift the load 17, and then dynamically adjust the gas volume of the airbag as needed to ensure that the platform is in a horizontal position.

[0075] In summary, the present invention provides an airbag platform for offshore wind turbine operations and an operation method thereof. When the airbag platform is in the first working stage, the first airbag 133 and the second airbag 143 are in an uninflated state. The first working stage is when the first airbag 133 and the second airbag 143 are located above the deep-sea wave base. When the airbag platform is in the second working stage, the first air pump 132 and the second air pump 142 are used to charge the first airbag 133 and the second airbag 143 with a preset amount of gas through the first charging and discharging pipeline 131 and the second charging and discharging pipeline 141 respectively. The second working stage is when the first airbag 133 and the second airbag 143 are located at or below the deep-sea wave base. When it is detected that the first airbag 133 and the second airbag 143 are located at or below the deep-sea wave base, they are inflated again, so that the first airbag and the second airbag can be kept at or below the deep-sea wave base in the inflated state. Since the effect of waves on the deep-sea wave base is very weak, the hoisting process during offshore operations is smoother.

[0076] Furthermore, the first platform 11 is equipped with a sensor, and the sensor is used to detect the levelness of the first platform 11 in real time. When the levelness of the first platform 11 is lower than a first threshold, the first airbag 133 and the second airbag 143 are inflated, and when the levelness of the first platform 11 is higher than the first threshold, the first airbag 133 and the second airbag 143 are deflated, so that when the weight of the load 17 on the first platform 11 changes, the volume of the first airbag 133 and the second airbag 143 can be adjusted in real time to maintain the stability of the first platform 11, so that the offshore operation is more stable;

[0077] Furthermore, a plurality of control cabinets 20 are installed on the first platform 11, and the number of the plurality of control cabinets 20 corresponds to the number of the first columns 13 and the second columns 14. The plurality of control cabinets 20 are respectively used for real-time detection of the distance between the first airbag 133 and the second airbag 143 and the deep-sea wave base, and real-time adjustment of the height of the first column 13 and the second column 14, thereby making the first platform 11 more stable.

[0078] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative rather than limiting, unless otherwise stated. In specific implementations, the technical features of one or more dependent claims may be combined with the technical features of the independent claim, based on actual needs and where technically feasible, and may be derived from the technical features of the corresponding independent claim in any appropriate manner rather than simply through the specific combination listed in the claims.

Claims

1. An airbag platform for offshore wind turbine operations, characterized in that: It includes a first platform, a first column and a second column; The first platform has a first end and a second end, the first column and the second column are symmetrically fixed on both sides of the first end, and the second end is provided with a hinge mechanism, and the hinge mechanism is used to be fixedly connected to the fan; A load and a winch are placed on the first platform, and the winch is used to drive a crane installed on the wind turbine to hoist the load; The first column and the second column are retractable structures, and the first column and the second column are respectively installed with a first airbag and a second airbag at the bottom; When the airbag platform is in the first working stage, the first airbag and the second airbag are in an uninflated state, and the first working stage is when the first airbag and the second airbag are located above the deep-sea wave base; When the airbag platform is in the second working stage, a first air pump and a second air pump are used to charge the first airbag and the second airbag with a preset amount of gas through the first charging and discharging pipeline and the second charging and discharging pipeline respectively, and the second working stage is when the first airbag and the second airbag are located at or below the deep-sea wave base; A preset amount of gas is charged into the first airbag and the second airbag, and the volume of the preset amount of gas is specifically calculated by the following formula: ， in, The volume of the first airbag and the second airbag filled with a preset amount of gas, is the sum of the weights of the first platform, the load and the winch, is the distance between the center of gravity of the first platform, the load and the winch and the articulated mechanism, is the vertical distance between the hinge mechanism and the connecting line between the first airbag and the second airbag on the plane where the first platform is located, is the water density, is the acceleration due to gravity; The height of the deep-sea wave base is obtained by the following method: assuming that the wavelength of the sea surface wave is λ, the deep-sea wave base is located at a depth of λ / 2 below the sea surface; The first platform is equipped with a sensor, which is used to detect the levelness of the first platform in real time. When the levelness of the first platform is lower than a first threshold, the first airbag and the second airbag are inflated, and when the levelness of the first platform is higher than the first threshold, the first airbag and the second airbag are deflated.

2. The airbag platform for offshore wind turbine operation according to claim 1, characterized in that: When the load changes, the first airbag and the second airbag are inflated or deflated respectively in real time, and the amount of inflation or deflation is specifically calculated by the following formula: ， in, is the amount of inflation or deflation of the first airbag or the second airbag, respectively, is the load weight change value, is the change value of the winch tension, is the distance between the center of gravity of the load changing part and the hinge mechanism, It is the distance between the winch rope and the hinge mechanism.

3. The airbag platform for offshore wind turbine operation according to claim 1 is characterized in that: A plurality of control cabinets are installed on the first platform, and the number of the plurality of control cabinets corresponds to the number of the first and second columns. The plurality of control cabinets are respectively used for real-time detection of the distance between the first and second airbags and the deep-sea wave base, and real-time adjustment of the height of the first and second columns.

4. The airbag platform for offshore wind turbine operation according to claim 1, characterized in that: A control cabinet is installed on the first platform, and the control cabinet is used to detect the distance between the first airbag and the second airbag and the deep-sea wave base in real time, and adjust the height of the first column and the second column in real time.

5. The airbag platform for offshore wind turbine operation according to claim 1, characterized in that: A first expansion interface is disposed at the first end of the first platform, and the first expansion interface is used to connect to the second platform.

6. The airbag platform for offshore wind turbine operation according to claim 5, characterized in that: The second platform has at least one, and the second platform has a third end and a fourth end, and the third end and the fourth end are respectively provided with a second expansion interface and a third expansion interface, and the third expansion interface has the same structure as the first expansion interface, and the second expansion interface is matched and connected with the first expansion interface; the third column and the fourth column are symmetrically fixed on both sides of the third end, and the structure of the third column and the fourth column is exactly the same as the first column and the second column, and the bottom of the third column and the fourth column are respectively installed with a third airbag and a fourth airbag; when the airbag platform is in the first working stage, the third airbag and the fourth airbag are in an uninflated state, and the first working stage is when the third airbag and the fourth airbag are located above the deep-sea wave base; when the airbag platform is in the second working stage, the third air pump and the fourth air pump are used to charge the third airbag and the fourth airbag with a preset amount of gas through the third charging and discharging pipeline and the fourth charging and discharging pipeline respectively.

7. The airbag platform for offshore wind turbine operation according to claim 1, characterized in that: The articulated mechanism is fixed to the sub-tower structure of the wind turbine via a fixing ring, the diameter of the fixing ring matches the sub-tower structure of the wind turbine, the articulated mechanism comprises a bearing connection structure or a hinge connection structure, the articulated mechanism is fixed to the base of the sub-tower structure of the wind turbine, and the base of the sub-tower structure is fixedly erected on the seabed.

8. An operation method using the airbag platform for offshore wind turbine operation according to any one of claims 1 to 7, characterized in that: The following steps are involved: The first column and the second column are symmetrically fixed on both sides of the first end of the first platform, and the first platform and the fan are fixedly connected by using the hinge mechanism; When the first airbag and the second airbag are located above the deep-sea wave base, the first airbag and the second airbag are in an uninflated state, and the heights of the first column and the second column are adjusted; when the first airbag and the second airbag are located at or below the deep-sea wave base, the first air pump and the second air pump are used to charge the first airbag and the second airbag with a preset amount of gas through the first charging and discharging pipeline and the second charging and discharging pipeline, respectively, and the first platform is adjusted to be parallel to the horizontal plane according to the requirements of offshore operations; The winch is started to drive the crane installed on the fan to lift the load, and then the gas volume of the airbag is dynamically adjusted as needed to ensure that the platform is in a horizontal position.

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