Escape device and offshore wind turbine generator

Abstract

The invention discloses an escape device and an offshore wind turbine generator, the device comprises an escape raft, the escape raft comprises a rigid raft top, a rigid raft bottom and a flexible connecting section connected between the raft top and the raft bottom, the flexible connecting section can be folded and unfolded to change the shape of the escape raft to a completely folded state and a completely unfolded state; an elastic stability maintaining structure is arranged on the circumferential side face of the raft top. The invention relates to the technical field of offshore wind turbine generators, the raft top and the raft bottom of the escape raft are kept in an unfolded state through the flexible connecting sections, so that people can stand in the escape raft, and the safety in the falling process is improved through the standing state. When the escape raft lands on the sea surface, the escape raft can be converted into a flat shape due to the foldable design. The elastic stability maintaining structure after overturning, the opened cover plate and the flexible connecting section are folded to form an extending folding body, and an extending body extending from top to bottom in a triple mode is formed in the circumferential direction of the escape raft, so that the escape raft is more stable.

Description

Technical Field

[0001] The invention relates to the technical field of offshore wind turbines, in particular to an escape device and an offshore wind turbine. Background Art

[0002] During the operation of offshore wind turbines, safety is always the primary concern. Due to the particularity of the offshore environment, it is particularly important to ensure that personnel can escape quickly and safely in the event of a fire or other emergency. Traditional offshore wind turbine escape methods mainly rely on passages inside the tower or escape windows in the wind turbine cabin. However, these methods have certain limitations and risks in actual use.

[0003] The method of escaping through the escape window in the wind turbine cabin usually requires the use of equipment such as a descender. Although this method provides a way to quickly descend from a height, it also has obvious safety hazards. First, the installation of the descender takes time, which may result in missing the best time to escape in an emergency. Secondly, people are easily affected by the wind during the fall, causing swings, which can hit the tower and cause serious injuries. Furthermore, once you fall into the sea, there is a lack of effective life-saving equipment, and marine accidents such as drowning may occur while waiting for rescue.

[0004] Therefore, in view of the deficiencies in the prior art, it is urgent to develop a kind of escape device. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an escape device and an offshore wind turbine generator set, which solve the problem of poor safety of the escape device of the existing offshore wind turbine generator set.

[0006] To achieve the above object, the present invention is implemented by the following technical solutions: an escape device, the device includes an escape raft, the escape raft includes a rigid raft top and a rigid raft bottom, and a flexible connecting section connected between the raft top and the raft bottom, the flexible connecting section can be folded and unfolded to change the shape of the escape raft to a fully folded and fully unfolded state;

[0007] The circumferential side surface of the raft top is provided with an elastic stabilizing structure, and the two ends of the elastic stabilizing structure are respectively connected to the top and bottom positions of the raft top through a first connecting member and a second connecting member, so that the elastic stabilizing structure is parallel or nearly parallel to the circumferential side wall surface of the raft top and covers all or part of the circumferential side wall surface of the raft top;

[0008] Wherein, the first connecting member is detachably connected to the raft top, and the second connecting member is elastically connected to the raft top; when the first connecting member is in a separated state from the raft top, the second connecting member drives the elastic stabilizing structure to flip, so that the elastic stabilizing structure and the circumferential side wall surface of the raft top are in a vertical state or a nearly vertical state;

[0009] The elastic stabilizing structure comprises a skeleton structure and a skin, wherein the skin has a first wall surface located outside the elastic stabilizing structure, and the middle of the first wall surface is indented inwardly to form a concave groove after being fixed to the skeleton structure;

[0010] The skin is connected to a gas generator through a pipeline, and the gas generator is arranged on the top of the raft.

[0011] Preferably, a support guardrail is provided in the middle part of the inner side of the raft top, and the support guardrail can be rotated to the top and the low point inside the raft top; a first locking element is provided on the support guardrail, and a second locking element is provided on the raft bottom, wherein when the support guardrail is rotated to the low point, the first locking element and the second locking element are locked with each other, so that after the flexible connecting section is fully folded, the escape raft is fixed in a fully folded state.

[0012] Preferably, a plurality of guard plates are circumferentially arranged on the top surface of the raft bottom, and the bottom of the guard plates is hinged to the raft bottom;

[0013] When the raft top and the raft bottom are completely folded, the flexible connecting section bends outward to form an extended folded body, and a cavity is formed in the extended folded body; when the raft top and the raft bottom are completely folded, the guard plate is located in the cavity.

[0014] Preferably, the top surface of the raft bottom extends upward in the circumferential direction to form a raised ring, and the raised ring limits the guard plate so that the guard plate is in an upright state and cannot be flipped toward the raft bottom; the bottom of the raft top is circumferentially provided with an upper ring; wherein, when the raft top and raft bottom are fully folded, the raised ring abuts against the upper ring.

[0015] Preferably, a bottom plate is provided on the bottom surface of the raft bottom, a column is fixed at the top diagonal center of the bottom plate, and the second locking member is provided on the column;

[0016] A flexible rubber pad is arranged on the top of the bottom plate, a sliding sleeve is fixed on the flexible rubber pad, and the sliding sleeve is slidably connected to the column; the outer edge of the flexible rubber pad is fixed on the top surface of the raised ring; and a ferrule is arranged on the flexible rubber pad.

[0017] Preferably, the skeleton structure includes a first plate and a second plate arranged opposite to each other, an intermediate pad is sandwiched in the middle between the first plate and the second plate, and the upper and lower ends of the intermediate pad extend outward and cover the surfaces of the first plate and the second plate; elastic sheets are connected to the upper and lower ends between the first plate and the second plate, and the elastic sheet is a "V"-shaped structure.

[0018] Preferably, the middle parts of the first plate and the second plate are both concave inwards, so that the cross-sections of the first plate and the second plate are arc-shaped; and a plurality of notches are formed on the first plate and the second plate;

[0019] The outer edges of the first plate and the second plate are continuously curved surfaces, and grooves are formed in the curved surfaces.

[0020] Preferably, the skin further comprises a second wall surface located on the other side of the first wall surface; an outer cavity is formed between the first wall surface and the first plate piece, and an inner cavity is formed between the second wall surface and the second plate piece.

[0021] Preferably, a placement cavity for accommodating the elastic stabilizing structure is provided on the circumferential outer side of the raft top, and a cover plate is provided outside the placement cavity; the bottom of the cover plate is hinged to the raft top, and the top of the cover plate can be opened and closed with the raft top.

[0022] An offshore wind turbine unit comprises a wind turbine nacelle and an escape device as described in any one of the above items, wherein the wind turbine nacelle is arranged on a tower, an escape window is arranged in the wind turbine nacelle, an openable door panel is arranged on the escape window, and descenders are arranged on both sides of the escape window; the escape device is arranged in the escape window and is connected by a quick-open lock.

[0023] Beneficial effects of the present invention: By using the escape device and offshore wind turbine provided by the present invention, when an emergency occurs, personnel only need to open the door panel to directly jump into the escape raft and connect the descender to descend, which greatly reduces the assembly time required in the traditional escape method. During the descent, the top and bottom of the escape raft are kept in an unfolded state through the flexible connecting section, so that personnel can stand in the escape raft, and the standing state improves the safety during the descent.

[0024] When the life raft hits the tower, the airbags and skeleton structure inside it can effectively buffer the impact potential energy and reduce the impact force on personnel. At the same time, the concave groove, as the bottom structure of the life raft, first contacts the surface of the object. At this time, a gas cavity is formed between the concave groove and the surface of the object, which plays a role in gas shock absorption and impact resistance. This double buffer design greatly improves the safety of the life raft during the impact process.

[0025] When the life raft lands on the sea, the foldable design allows the life raft to be transformed into a flat shape to adapt to the sea environment. At this time, the guard plate enters the folded cavity, and the flexible rubber pad at the bottom of the raft can be pulled to drain the water in the life raft into the cavity. The storage of the guard plate and water in the cavity forms a counterweight, which further improves the stability of the life raft after folding.

[0026] In addition, the elastic stabilization structure flips outward and becomes perpendicular to the life raft by opening the first connecting piece. At this time, the concave groove outside the elastic stabilization structure forms a "suction cup" effect, which can absorb the water surface, thereby improving the stability of the life raft after folding. At the same time, the extended folding body formed by the flipped elastic stabilization structure, the opened cover plate and the flexible connecting section after folding forms a triple extended extension from top to bottom in the circumference of the life raft. These extensions can reduce the impact force of water waves, make the life raft more stable, and further improve the stability of the life raft on the sea surface after folding.

[0027] In summary, the offshore wind turbine escape device can reduce assembly time; during the falling process, it can provide a stable standing environment and effectively buffer the impact force; on the sea surface, it can maintain stability and reduce the impact of water waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a diagram showing the life raft of the present invention being in use when it is arranged in an escape window;

[0029] Figure 2 It is a plan view of the life raft of the present invention arranged in the escape window;

[0030] Figure 3 It is a schematic diagram of the deployment state of the life raft of the present invention;

[0031] Figure 4 is a top view of the life raft of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the life raft of the present invention when the elastic stabilizing structure is opened in the deployed state;

[0033] Figure 6 This is a diagram of the life raft of the present invention in use after being folded;

[0034] Figure 7 This is a schematic diagram of the elastic stabilization structure of the present invention;

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the first plate of the present invention.

[0036] Description of reference numerals in the figures

[0037] 1. Escape window, 2. Descending device, 3. Door panel, 4. Escape raft, 4a. Raft top, 4b. Raft bottom, 5. Flexible connecting section, 6. Quick-open lock, 7. Support guardrail, 8. Guard plate, 9. First lock, 10. Placement cavity, 11. Cover plate, 12. Elastic stabilizing structure, 121. First plate, 122. Middle pad, 123. Second plate, 124. Elastic sheet, 125. First wall, 1 26. second wall surface, 127. outer clamping cavity, 128. inner clamping cavity, 129. groove, 130. curved surface, 131. notch, 13. upper ring, 14. raised ring, 15. second locking piece, 16. flexible rubber pad, 17. bottom plate, 18. ferrule, 19. sliding sleeve, 20. column, 21. gas generator, 22. first connecting piece, 23. second connecting piece, 24. recessed groove, 25. cavity. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. As long as the effects of the present invention can be exerted, various changes can be made to the implementation scheme.

[0039] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0040] Reference Figure 3-8 An escape device according to the present embodiment is described.

[0041] like Figure 3 and Figure 6 As shown, the escape device includes an escape raft 4, which includes a rigid raft top 4a and a rigid raft bottom 4b, and the inner wall or outer wall of which is provided with a foam buoyancy block, and the outer wall of the foam buoyancy block is wrapped with canvas to improve the buoyancy and durability of the escape raft 4. And a flexible connecting section 5 connected between the raft top 4a and the raft bottom 4b, the flexible connecting section 5 can be folded and unfolded to change the shape of the escape raft 4 to a fully folded and fully unfolded state. When the raft top 4a, the raft bottom 4b and the flexible connecting section 5 are in a fully unfolded state, the cavity inside the escape raft 4 is an upright structure, and a person can stand in the escape raft 4. During the descent from a high altitude, the raft top 4a and the flexible connecting section 5 surround the body of the person, and the raft bottom 4b provides a bottom surface for the person to stand, so as to prevent the person from accidentally leaving the escape raft 4 when descending from a high altitude. When the raft top 4a, the raft bottom 4b and the flexible connecting section 5 are in a fully folded state, the cavity inside the escape raft 4 is flat and can float steadily on the surface of the water.

[0042] like Figure 5As shown, an elastic stabilizing structure 12 is provided on the circumferential side of the raft top 4a, and the two ends of the elastic stabilizing structure 12 are respectively connected to the top and bottom positions of the raft top 4a through a first connecting member 22 and a second connecting member 23. The first connecting member 22 is detachably connected to the raft top 4a, and the second connecting member 23 is elastically connected to the raft top 4a.

[0043] The elastic stabilizing structure 12 has two use states, one of which is: when the first connecting member 22 and the second connecting member 23 are connected to the top and bottom positions of the raft top 4a, the elastic stabilizing structure 12 is parallel or nearly parallel to the circumferential side wall of the raft top 4a and covers all or part of the circumferential side wall of the raft top 4a. The elastic stabilizing structure 12 is used in conjunction with the unfolded state of the escape raft 4 in the use state, and its purpose is to provide circumferential buffer protection for the escape raft 4 in the unfolded state, so that the escape raft 4 is safer in the sky. The second is: when the first connecting member 22 and the raft top 4a are in a separated state, the second connecting member 23 drives the elastic stabilizing structure 12 to flip, so that the elastic stabilizing structure 12 and the circumferential side wall of the raft top 4a are vertical or nearly vertical. The elastic stabilizing structure 12 is used in conjunction with the folded state of the escape raft 4 in the use state, and its purpose is to provide circumferential expansion and stabilization for the escape raft 4 in the folded state, so that the escape raft 4 is more stable on the liquid surface of the water.

[0044] Further, such as Figure 3 and Figure 6 As shown, a support guardrail 7 is provided at the middle part of the inner side of the raft top 4a, and the support guardrail 7 is connected to the raft top 4a through a rotating member. The support guardrail 7 can be rotated to the top and the bottom positions in the raft top 4a, and is locked by a locking member after rotating to the top position. In this embodiment, the locking member is a bolt; a first locking member 9 is provided on the support guardrail 7, and a second locking member 15 is provided on the raft bottom 4b, wherein the first locking member 9 and the second locking member 15 are locked with each other when the support guardrail 7 is rotated to the bottom position, so that the flexible connecting section 5 is completely folded and the escape raft 4 is fixed in a completely folded state.

[0045] In specific implementation, when the life raft 4 is in a fully deployed state, the support guardrail 7 rotates to the top position, and is bolted through the guardrail 7 and then screwed onto the raft top 4a. At this time, a shielding body can be covered on the support guardrail 7 to shield the cavity inside the life raft 4 and block burning objects falling from high altitudes. It can also be used as a handrail when a person is standing, providing stability for the person to stand. When the life raft 4 is in a fully folded state, the support guardrail 7 rotates downward and fixes the first locking member 9 to the second locking member 15, so that the raft bottom 4b contacts the raft top 4a, and the life raft 4 can be fixed when it is folded and flat. Figure 4 As shown, the support guardrail 7 divides the life raft 4 into two areas, so that the life raft 4 can separate the areas when accommodating two persons at the same time.

[0046] like Figure 3 and Figure 6 As shown, the bottom surface of the raft bottom 4b is provided with a bottom plate 17, a column 20 is fixed at the top diagonal center of the bottom plate 17, and the second locking member 15 is arranged on the column 20; a flexible rubber pad 16 is arranged on the top of the bottom plate 17, a sliding sleeve 19 is fixed on the flexible rubber pad 16, and the sliding sleeve 19 is slidably connected to the column 20; the outer edge of the flexible rubber pad 16 is fixed on the top surface of the raised ring 14; and a collar 18 is arranged on the flexible rubber pad 16. The flexible rubber pad 16 is a drainage system for the raft bottom 4b. The raised ring 14 is lifted to make the flexible rubber pad 16 move upward, and the water contained inside will flow along the edge into the cavity 25 inside the extended folding body formed by the folded flexible connecting section 5. The water cooperates with the guard plate 8 to form a counterweight body in the folded state of the escape raft 4, so that the folded escape raft 4 is more stable when floating on the surface of the water.

[0047] like Figure 3 and Figure 6 As shown, a plurality of guard plates 8 are circumferentially arranged on the top surface of the raft bottom 4b, and the guard plates 8 are preferably made of rubber, and the bottom of the guard plates 8 is hinged to the raft bottom 4b;

[0048] The top surface of the raft bottom 4b extends upward to form a raised ring 14, which limits the guard plate 8 so that the guard plate 8 is in an upright state and cannot be turned toward the raft bottom 4b. At this time, the guard plate 8 cooperates with the elastic stabilizing structure 12 to form upper and lower protection, buffering the impact force when the escape raft hits an object during the descent process in the deployed state, thereby improving the safety protection effect for personnel. The bottom of the raft top 4a is provided with an upper ring 13 in the circumferential direction; wherein, when the raft top 4a and the raft bottom 4b are fully folded, the raised ring 14 abuts against the upper ring 13.

[0049] When the raft top 4a and the raft bottom 4b are fully folded, the flexible connecting section 5 bends outward to form an extended folded body, and a cavity 25 is formed in the extended folded body; when the raft top 4a and the raft bottom 4b are fully folded, the guard plate 8 is located in the cavity 25.

[0050] like Figure 5 , Figure 7 and Figure 8 As shown, the elastic stabilizing structure 12 includes a skeleton structure and a skin, the skin is connected to a gas generator 21 through a pipeline, the gas generator 21 is arranged on the raft top 4a, and the gas generator 21 inflates the skin to form an airbag after inflation. When the life raft 4 is in an unfolded state, the airbag can improve the buffering effect when colliding with an object, and when the life raft 4 is in a folded state and floats on water, the airbag can assist the life raft 4 in floating and improve the buoyancy of the life raft.

[0051] like Figure 7 and Figure 8As shown, the skeleton structure includes a first plate 121 and a second plate 123 arranged opposite to each other, the middle parts of the first plate 121 and the second plate 123 are both recessed inwards, so that the cross-sections of the first plate 121 and the second plate 123 are arc-shaped, the recessed parts of the two plates are opposite to each other, and the openings are outwards. With this structural design, the two plates can be deformed when colliding with an object, reducing the impact force during the collision, and automatically reset after the collision.

[0052] An intermediate pad 122 is sandwiched between the first plate 121 and the second plate 123. The upper and lower ends of the intermediate pad 122 extend outward and cover the surfaces of the first plate 121 and the second plate 123. The material of the intermediate pad 122 is preferably an elastic material, including rubber or foam. When the two plates are deformed by force, the intermediate pad 122 is squeezed, and the potential energy is slowed down by the intermediate pad 122. An elastic sheet 124 is connected to the upper and lower ends between the first plate 121 and the second plate 123. The elastic sheet 124 is a "V"-shaped structure. When the two plates are deformed by force, the elastic sheet 124 is also squeezed, and the two plates are supported by the elastic sheet 124, thereby increasing the impact deformation of the two plates and increasing the reset speed. A plurality of notches 131 are opened on the first plate 121 and the second plate 123. The notches 131 are used to assist the deformation of the two plates. When the two plates are in a normal state, the notches 131 shrink, and when the two plates are impacted, the notches 131 are exposed when the two plates are deformed.

[0053] The skin has a first wall surface 125 located outside the elastic stabilizing structure 12. The middle of the first wall surface 125 is fixed to the skeleton structure and is recessed inward to form a recessed groove 24. When the life raft 4 is in the unfolded state and hits an object, the recessed groove 24 in the first wall surface 125 first contacts the surface of the object. At this time, a gas cavity is formed between the recessed groove 24 and the surface of the object, which plays a role in gas shock absorption and impact resistance. When the life raft 4 is in the folded state and floats on the water and shakes, the recessed groove 24 in the first wall surface 125 will produce an adsorption effect with the water surface, thereby improving the stability of the life raft 4 on the water surface.

[0054] The outer edges of the first plate 121 and the second plate 123 are continuously curved surfaces 130, and grooves 129 are formed in the curved surfaces 130. When the skin is fixed to the skeleton structure, the skin is fixed at the outer edges of the first plate 121 and the second plate 123, so after being inflated, the curved surface 130 and the grooves 129 are also formed on the skin, and the grooves 129 enable the gas to flow through the grooves 129 after the concave grooves 24 contact the surface of the object, thereby avoiding the suction cup effect and adsorption on the surface of the object to cause danger in use.

[0055] The skin also includes a second wall 126 located on the other side of the first wall 125; an outer cavity 127 is formed between the first wall 125 and the first plate 121, and an inner cavity 128 is formed between the second wall 126 and the second plate 123. The outer cavity 127 and the inner cavity 128 are inflated to improve the impact elasticity and buoyancy of the elastic stabilizing structure 12.

[0056] A placement cavity 10 for accommodating the elastic stabilizing structure 12 is arranged on the circumferential outer side of the raft top 4a, and a cover plate 11 is arranged outside the placement cavity 10; the bottom of the cover plate 11 is hinged to the raft top 4a, and the top of the cover plate 11 can be opened and closed with the raft top 4a.

[0057] Further, such as Figure 6 The life raft 4 shown is in a folded state, and the extended folded body formed by the flipped elastic stabilizing structure 12, the opened cover plate 11 and the flexible connecting section 5 after folding forms a triple extended body from top to bottom in the circumferential direction of the life raft 4, thereby increasing the contact area between the life raft 4 and the water surface after being folded. When impacted by water waves, the triple extended extended bodies can reduce the impact force of the water waves, thereby making the life raft 4 more stable and improving the safety of people.

[0058] The present invention also provides an offshore wind turbine generator system, such as Figure 1 and Figure 2 As shown, it includes a wind turbine cabin and an escape device. The wind turbine cabin is arranged on the tower, an escape window 1 is arranged in the wind turbine cabin, an openable door panel 3 is arranged on the escape window 1, and a descender 2 is arranged on both sides of the escape window 1; the escape device is arranged in the escape window 1 and connected by a quick-open lock 6. The operation method is: after the personnel open the escape window 1 in the wind turbine cabin, they jump into the escape raft 4, the descender 2 is connected to the escape raft 4, and the escape raft 4 slowly descends after the quick-open lock 6 is opened. Correspondingly, the safety belt of the personnel's body also needs to be fixed to the hanging ring after the quick-open lock 6 is opened, and the hanging ring is arranged on the raft top 4a.

[0059] Working principle: 1. After opening the escape window 1, the personnel jump into the escape raft 4, the descender 2 is connected to the escape raft 4, and the escape raft 4 slowly descends after the quick-open lock 6 is opened.

[0060] Second, during the descent, the raft top 4a and the raft bottom 4b are in an unfolded state through the flexible connecting section 5, and the personnel are in a standing state in the escape raft 4, which improves the safety during the descent.

[0061] 3. Open the cover plate 11, and the gas generator inflates the airbag in the elastic stabilizing structure 12, and connects the first connecting member 22 to the raft top 4a, and the elastic stabilizing structure 12 surrounds the side of the raft top 4a. When the impact hits the tower, the airbag and the skeleton structure play the role of buffering the impact potential energy. At the same time, the concave groove 24 first contacts the surface of the object, and a gas cavity is formed between the concave groove 24 and the surface of the object, which plays the role of gas shock absorption and impact resistance.

[0062] Fourth, when landing on the sea surface, the raft bottom 4b is pulled up to make the raft top 4a and the raft bottom 4b contact and the flexible connecting section 5 folded, and the folded life raft 4 is flat and stable on the sea surface. At the same time, the guard plate 8 enters the folded cavity, and the flexible rubber pad 16 at the raft bottom 4b is pulled up to discharge the water in the life raft 4 into the cavity, and the guard plate 8 and the water are stored in the cavity to form a counterweight, thereby improving the stability of the life raft 4 after folding.

[0063] Fifth, when landing on the sea surface, the first connecting member 22 is opened, and the second connecting member 23 makes the elastic stabilizing structure 12 flip outward, so that the elastic stabilizing structure 12 and the life raft 4 are in a vertical state. At this time, the concave groove 24 outside the elastic stabilizing structure 12 forms a "suction cup" effect, adsorbs the water surface, and improves the stability of the life raft 4 after folding. The extended folded body formed by the flipped elastic stabilizing structure 12, the opened cover plate 11 and the flexible connecting section 5 forms a triple extended extension from top to bottom in the circumference of the life raft 4, which reduces the impact of water waves, makes the life raft 4 more stable, and improves the stability of the life raft 4 on the sea surface after folding.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An escape device, characterized in that: The device comprises a life raft (4), the life raft (4) comprising a rigid raft top (4a) and a rigid raft bottom (4b), and a flexible connecting section (5) connected between the raft top (4a) and the raft bottom (4b), wherein the flexible connecting section (5) can be folded and unfolded to change the shape of the life raft (4) to a fully folded and fully unfolded state; The circumferential side surface of the raft top (4a) is provided with an elastic stabilizing structure (12), and the two ends of the elastic stabilizing structure (12) are respectively connected to the top and bottom positions of the raft top (4a) through a first connecting member (22) and a second connecting member (23), so that the elastic stabilizing structure (12) is parallel or nearly parallel to the circumferential side wall surface of the raft top (4a) and covers the entire or partial area of ​​the circumferential side wall surface of the raft top (4a); The first connecting member (22) is detachably connected to the raft top (4a), and the second connecting member (23) is elastically connected to the raft top (4a); when the first connecting member (22) and the raft top (4a) are in a separated state, the second connecting member (23) drives the elastic stabilizing structure (12) to flip, so that the circumferential side wall surface of the elastic stabilizing structure (12) and the raft top (4a) are in a vertical state or a nearly vertical state; The elastic stabilizing structure (12) comprises a skeleton structure and a skin, wherein the skin has a first wall surface (125) located outside the elastic stabilizing structure (12), and the middle of the first wall surface (125) is inwardly recessed to form a recessed groove (24) after being fixed to the skeleton structure. The skin is connected to a gas generator (21) via a pipeline, and the gas generator (21) is arranged on the raft top (4a).

2. An escape device according to claim 1, characterized in that: A support guardrail (7) is arranged at the middle part of the inner side of the raft top (4a), and the support guardrail (7) can be rotated to the top and the bottom position inside the raft top (4a); a first locking member (9) is arranged on the support guardrail (7), and a second locking member (15) is arranged on the raft bottom (4b), wherein when the support guardrail (7) is rotated to the bottom position, the first locking member (9) and the second locking member (15) are locked with each other, so that after the flexible connecting section (5) is completely folded, the escape raft (4) is fixed in a completely folded state.

3. An escape device according to claim 1, characterized in that: A plurality of guard plates (8) are circumferentially arranged on the top surface of the raft bottom (4b), and the bottom of the guard plates (8) is hinged to the raft bottom (4b); When the raft top (4a) and the raft bottom (4b) are completely folded, the flexible connecting section (5) bends outward to form an extended folded body, and a cavity (25) is formed in the extended folded body; when the raft top (4a) and the raft bottom (4b) are completely folded, the guard plate (8) is located in the cavity (25).

4. An escape device according to claim 3, characterized in that: The top surface of the raft bottom (4b) is circumferentially extended upward to form a raised ring (14), and the raised ring (14) limits the guard plate (8); the bottom of the raft top (4a) is circumferentially provided with an upper ring (13); wherein, when the raft top (4a) and the raft bottom (4b) are completely folded, the raised ring (14) abuts against the upper ring (13).

5. An escape device according to claim 1, characterized in that: The bottom surface of the raft bottom (4b) is provided with a bottom plate (17), a column (20) is fixed at the top diagonal center of the bottom plate (17), and the second locking member (15) is arranged on the column (20); A flexible rubber pad (16) is arranged on the top of the bottom plate (17), a sliding sleeve (19) is fixed on the flexible rubber pad (16), and the sliding sleeve (19) is slidably connected to the column (20); the outer edge of the flexible rubber pad (16) is fixed on the top surface of the raised ring (14); and a ring (18) is arranged on the flexible rubber pad (16).

6. An escape device according to claim 1, characterized in that: The skeleton structure comprises a first plate (121) and a second plate (123) which are arranged opposite to each other, an intermediate pad (122) is sandwiched between the first plate (121) and the second plate (123), and the upper and lower ends of the intermediate pad (122) extend outward and cover the surfaces of the first plate (121) and the second plate (123); an elastic sheet (124) is connected to the upper and lower ends between the first plate (121) and the second plate (123), and the elastic sheet (124) is a "V"-shaped structure.

7. An escape device according to claim 6, characterized in that: The middle parts of the first plate (121) and the second plate (123) are both concave inwards, so that the cross-sections of the first plate (121) and the second plate (123) are arc-shaped; a plurality of notches (131) are formed on the first plate (121) and the second plate (123); The outer edges of the first plate (121) and the second plate (123) are continuously curved surfaces (130), and a groove (129) is formed in the curved surface (130).

8. An escape device according to claim 1, characterized in that: The skin also includes a second wall surface (126) located on the other side of the first wall surface (125); an outer cavity (127) is formed between the first wall surface (125) and the first plate (121), and an inner cavity (128) is formed between the second wall surface (126) and the second plate (123).

9. An escape device according to claim 1, characterized in that: A placement cavity (10) capable of accommodating an elastic stabilizing structure (12) is arranged on the circumferential outer side of the raft top (4a), and a cover plate (11) is arranged outside the placement cavity (10); the bottom of the cover plate (11) is hinged to the raft top (4a), and the top of the cover plate (11) can be opened and closed with the raft top (4a).

10. An offshore wind turbine generator system, characterized in that: The invention comprises a wind turbine cabin and an escape device as claimed in any one of claims 1 to 9, wherein the wind turbine cabin is arranged on a tower, an escape window (1) is arranged in the wind turbine cabin, an openable door panel (3) is arranged on the escape window (1), and descenders (2) are arranged on both sides of the escape window (1); the escape device is arranged in the escape window (1) and is connected via a quick-open lock (6).

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