Fireproof device and wind turbine generator

Abstract

The fireproof device comprises a clamping structure and a plurality of fixing structures, the clamping structure comprises a first clamping piece and a second clamping piece which are connected with each other, the first clamping piece is provided with a first clamping cavity, the second clamping piece is provided with a second clamping cavity, and the fixing structures are arranged on the first clamping piece and the second clamping piece. When the first clamping piece and the second clamping piece are connected, a clamping cavity is formed; any fixing structure is suitable for being connected with the inner wall face of the tower drum and the clamping structure so that the clamping structure can be fixed to the inner wall face of the tower drum. The inner wall faces of the first clamping cavity and the second clamping cavity are each provided with a fireproof part, and when the first clamping part and the second clamping part clamp the steel strand through the clamping cavities, the fireproof parts are arranged between the steel strand and the clamping parts. The fireproof device with the structure can enhance the protection measures of the tower drum and is beneficial to improving the safety of the tower drum.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a fire prevention device and a wind turbine generator set. Background Art

[0002] To alleviate the environmental problems caused by the use of fossil energy, wind energy, as a developed clean energy, has been widely used in many fields. Among them, wind power generation is a rapidly developing field, and wind turbines are important equipment for achieving wind power generation.

[0003] In the prior art, with the continuous development of larger and higher-altitude wind turbines, the bottom structure of wind turbine towers generally adopts precast concrete towers in sections. In order to enhance the stability and load-bearing capacity of the concrete tower, prestressed steel strands are used to prestress the hoisted concrete tower to form a stable whole. In addition, the key electrical equipment of the wind power generation system is usually installed on the bottom platform of the concrete tower. Since the internal environment of the tower may be affected by various adverse factors such as tower leakage, equipment aging, and poor heat dissipation and ventilation, the electrical equipment inside is prone to safety accidents such as fire or explosion. The flames and high temperatures generated by the prestressed steel strands will affect the prestressed steel strands arranged nearby, causing them to break due to the inability to withstand the high temperature. In the most serious cases, it may cause the collapse of the wind turbine tower, resulting in huge economic losses and potential casualties. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the prestressed steel strands in the mixed tower of the existing wind turbine generator set are directly exposed in the space inside the tower, resulting in insufficient protection measures.

[0005] To this end, the present invention provides a fire prevention device, comprising:

[0006] A clamping structure comprising a first clamping member and a second clamping member connected to each other, wherein the first clamping member has a first clamping cavity, and the second clamping member has a second clamping cavity, so as to form a clamping cavity when the first clamping member and the second clamping member are connected;

[0007] A plurality of fixing structures, any of which is suitable for connecting with the inner wall surface of the tower and the clamping structure to fix the clamping structure on the inner wall surface of the tower;

[0008] Wherein, fireproof parts are provided on the inner wall surfaces of the first clamping cavity and the second clamping cavity. When the first clamping part and the second clamping part clamp the steel strand through the clamping cavity, the fireproof parts are provided between the steel strand and the clamping parts.

[0009] Optionally, in the above-mentioned fire protection device, the first clamping member is provided with a plurality of first connecting parts, and the second clamping member is provided with a plurality of second connecting parts corresponding one-to-one to the first connecting parts, and any one of the first connecting parts is suitable for connecting with one of the second connecting parts to connect the first clamping member and the second clamping member.

[0010] Optionally, in the above-mentioned fire protection device, the first clamping member includes a first clamping portion and two first transition portions, the two first transition portions are arranged on both sides of the first clamping portion, the first clamping portion and the two first transition portions together form the first clamping cavity, and all the first connecting portions are opened on the two first transition portions.

[0011] Optionally, in the above-mentioned fire protection device, the second clamping member includes a second clamping portion and two second transition portions, the two second transition portions are arranged on both sides of the second clamping portion, the second clamping portion and the two second transition portions together form the second clamping cavity, and all the second connecting portions are opened on the two second transition portions.

[0012] Optionally, in the above-mentioned fire protection device, the cross-sectional shape of the first clamping cavity and the second clamping cavity are both semicircular, so that when the first clamping cavity and the second clamping cavity together form a clamping cavity, the cross-sectional shape of the clamping cavity is an outer circle.

[0013] Optionally, in the above-mentioned fire protection device, the fixed structure includes mutually connected fixing parts and a plurality of connecting parts, the fixing parts are suitable for being connected to the inner wall surface of the tower, and any of the connecting parts is suitable for being connected to a pair of corresponding first connecting parts and second connecting parts to connect the clamping structure and the fixed structure.

[0014] Optionally, in the above-mentioned fire protection device, the fixing member is provided with a plurality of fixing parts, and the fixing member is suitable for being connected to the inner wall surface of the tower through the fixing parts.

[0015] Optionally, in the above-mentioned fire protection device, a threaded portion is provided on the connecting member, and the threaded portion is provided at the end of the connecting member away from the fixing member. When the end of the connecting member away from the fixing member passes through the first connecting portion and the second connecting portion in sequence, the threaded portion is suitable for connecting with a nut to fix the clamping structure on the fixing member.

[0016] Optionally, in the above-mentioned fire protection device, the first clamping member and the second clamping member have the same structure so as to jointly clamp the steel strand.

[0017] A wind turbine generator set comprises the above-mentioned fire prevention device.

[0018] The technical solution provided by the utility model has the following advantages:

[0019] 1. The fire prevention device provided by the present invention is provided with a fixing structure and a clamping structure arranged on the inner wall surface of the tower, wherein the clamping structure includes a first clamping member and a second clamping member, the first clamping member and the second clamping member are connected to each other, and the first clamping member has a first clamping cavity, and the second clamping member has a second clamping member, so that after the first clamping member and the second clamping member are connected together, the first clamping cavity and the second clamping cavity can jointly form a clamping cavity, and the clamping cavity can clamp the steel strand therein when the first clamping member and the second clamping member respectively abut against the steel strand, so as to protect the steel strand through the first clamping member and the second clamping member, and the fixing structure can be connected to the inner wall surface of the tower and the clamping structure respectively, so that the clamping structure is installed on the inner wall surface of the tower, so that the clamping structure can It can clamp the steel strands attached to the inner wall of the tower. In addition, fireproofing parts are provided in the first clamping cavity and the second clamping cavity. The fireproofing parts are specifically attached to the inner wall surfaces of the first clamping cavity and the second clamping cavity. Therefore, when the first clamping part and the second clamping part are respectively in contact with the steel strands, that is, when the steel strands are clamped by the clamping cavity, the fireproofing parts can be provided between the steel strands and the clamping parts, so that the fireproofing parts can provide heat insulation for the steel strands. Further, when a fire or explosion or other safety accident occurs in the electrical equipment in the tower, the clamping parts and the fireproofing parts can isolate the flame and high temperature in the tower from the steel strands to avoid the steel strands being directly exposed to the flame and high temperature environment and breaking in the high temperature environment, thereby enhancing the protective measures of the tower and helping to improve the safety of the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of a fire protection device provided in an embodiment of the present utility model;

[0022] Description of reference numerals:

[0023] 1-clamping structure; 11-first clamping member; 111-first connecting portion; 112-first clamping portion; 113-first transition portion; 12-second clamping member;

[0024] 2-fixing structure; 21-fixing member; 211-fixing portion; 22-connecting member;

[0025] 3- Fireproof parts; 4- Steel strands. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Example 1

[0031] This embodiment provides a fire prevention device, such as Figure 1 As shown, it includes a clamping structure 1 and several fixed structures 2, the clamping structure 1 includes a first clamping member 11 and a second clamping member 12 connected to each other, the first clamping member 11 has a first clamping cavity, and the second clamping member 12 has a second clamping cavity, so as to form a clamping cavity together when the first clamping member 11 and the second clamping member 12 are connected; any fixed structure 2 is suitable for connecting with the inner wall surface of the tower and the clamping structure 1 to fix the clamping structure 1 on the inner wall surface of the tower; wherein, the inner wall surfaces of the first clamping cavity and the second clamping cavity are both provided with fireproof parts 3, and when the first clamping member 11 and the second clamping member 12 clamp the steel strand 4 through the clamping cavity, the fireproof part 3 is arranged between the steel strand 4 and the clamping member.

[0032] The fire protection device of the above structure is provided with a fixed structure 2 and a clamping structure 1 on the inner wall surface of the tower, wherein the clamping structure 1 includes a first clamping member 11 and a second clamping member 12, the first clamping member 11 and the second clamping member 12 are connected to each other, and the first clamping member 11 has a first clamping cavity, and the second clamping member 12 has a second clamping member 12, so that after the first clamping member 11 and the second clamping member 12 are connected together, the first clamping cavity and the second clamping cavity can jointly form a clamping cavity, and the clamping cavity can clamp the steel strand 4 therein when the first clamping member 11 and the second clamping member 12 are respectively in contact with the steel strand 4, so as to protect the steel strand 4 through the first clamping member 11 and the second clamping member 12, and the fixed structure 2 can be connected to the inner wall surface of the tower and the clamping structure 1 respectively, so as to install the clamping structure 1 on the inner wall surface of the tower, so that the clamping structure 1 can clamp the steel strand 4 attached to the inner wall surface of the tower.

[0033] In addition, fireproof parts 3 are provided in the first clamping cavity and the second clamping cavity. The fireproof parts 3 in this embodiment are ceramic fiber cloth. The fireproof parts 3 are specifically attached to the inner wall surfaces of the first clamping cavity and the second clamping cavity, so that when the first clamping part 11 and the second clamping part 12 are respectively in contact with the steel strand 4, that is, when the steel strand 4 is clamped by the clamping cavity, the fireproof parts 3 can be set between the steel strand 4 and the clamping parts, so that the fireproof parts 3 can provide heat insulation for the steel strand 4, and then when a safety accident such as fire or explosion occurs in the electrical equipment in the tower, the clamping parts and the fireproof parts 3 can isolate the flame and high temperature in the tower outside the steel strand 4, so as to avoid the steel strand 4 being directly exposed to the flame and high temperature environment, and breaking in the high temperature environment, thereby enhancing the protection measures of the tower and helping to improve the safety of the tower.

[0034] The fire prevention device provided in this embodiment is as follows: Figure 1 As shown, the first clamping member 11 is provided with a plurality of first connecting portions 111 , and the second clamping member 12 is provided with a plurality of second connecting portions corresponding one to one with the first connecting portions 111 . Any first connecting portion 111 is suitable for connecting with a second connecting portion to connect the first clamping member 11 and the second clamping member 12 .

[0035] The fire protection device of the above structure is provided with a plurality of first connection parts 111 on the first clamping member 11 and a plurality of second connection parts on the second clamping member 12. In this embodiment, the first connection parts 111 and the second connection parts are respectively the first connection holes and the second connection holes. The second connection parts on the second clamping member 12 are arranged in a one-to-one correspondence with the first connection parts 111 on the first clamping member 11. Therefore, when connecting the first clamping member 11 and the second clamping member 12, the first clamping member 11 and the second clamping member 12 can be connected by connecting the first connection parts 111 and the second connection parts.

[0036] The fire prevention device provided in this embodiment is as follows: Figure 1 As shown, the first clamping member 11 includes a first clamping portion 112 and two first adapter portions 113. The two first adapter portions 113 are arranged on both sides of the first clamping portion 112. The first clamping portion 112 and the two first adapter portions 113 together form a first clamping cavity, and all the first connecting portions 111 are opened on the two first adapter portions 113.

[0037] The fire protection device of the above structure includes a first clamping part 112 and two first adapter parts 113 by setting a first clamping part 11. The first clamping part 112 and the first adapter part 113 are respectively a first clamping plate and a first adapter plate in this embodiment, wherein the two first adapter parts 113 are respectively arranged on both sides of the first clamping part 112 and are respectively connected to the first clamping part 112, so that the first clamping part 112 and the two first adapter parts 113 jointly form a first clamping cavity, and enable the first clamping part 11 to abut against the steel strand 4 through the first clamping cavity. At the same time, all the first connecting parts 111 are opened on the first adapter part 113, so that when the first clamping part 11 and the second clamping part 12 are connected, the first clamping part 11 can be connected to the second clamping part 12 through the first adapter part 113.

[0038] The fire prevention device provided in this embodiment is as follows: Figure 1 As shown, the second clamping member 12 includes a second clamping portion and two second transition portions, the two second transition portions are arranged on both sides of the second clamping portion, the second clamping portion and the two second transition portions together form a second clamping cavity, and all the second connecting portions are opened on the two second transition portions.

[0039] The fire protection device of the above structure includes a second clamping part and two second adapter parts by setting a second clamping part 12. The second clamping part and the second adapter part are respectively a second clamping plate and a second adapter plate in this embodiment, wherein the two second adapter parts are respectively arranged on both sides of the second clamping part and are respectively connected to the second clamping part, so that the second clamping part and the two second adapter parts jointly form a second clamping cavity, and the second clamping part 12 can abut against the steel strand 4 through the second clamping cavity. At the same time, all the second connecting parts are opened on the second adapter part, so that when the first clamping part 11 and the second clamping part 12 are connected, the second clamping part 12 can be connected to the first adapter part 113 of the first clamping part 11 through the second adapter part.

[0040] The fire prevention device provided in this embodiment is as follows: Figure 1 As shown, the cross-sectional shapes of the first clamping cavity and the second clamping cavity are both semicircular, so that when the first clamping cavity and the second clamping cavity together form the clamping cavity, the cross-sectional shape of the clamping cavity is an outer circle.

[0041] The fire protection device of the above structure sets the cross-sectional shape of the first clamping cavity and the second clamping cavity to be semicircular, so that when the first clamping cavity and the second clamping cavity jointly form a clamping cavity, the cross-sectional shape of the clamping cavity is circular. Since the cross-sectional shape of the steel strand 4 is circular, when the clamping structure 1 clamps the steel strand 4 through the clamping cavity, the clamping cavity can be fully adapted to the steel strand 4.

[0042] The fire prevention device provided in this embodiment is as follows: Figure 1 As shown, the fixed structure 2 includes mutually connected fixing members 21 and several connecting members 22. The fixing members 21 are suitable for connecting to the inner wall surface of the tower. Any connecting member 22 is suitable for connecting to a pair of corresponding first connecting parts 111 and second connecting parts to connect the clamping structure 1 and the fixed structure 2.

[0043] The fire protection device of the above structure includes a fixing structure 2 including mutually connected fixing parts 21 and a plurality of connecting parts 22. In this embodiment, the fixing parts 21 and the connecting parts 22 are fixing plates and connecting rods, respectively, wherein the fixing parts 21 can be connected to the inner wall surface of the tower, and the connecting parts 22 can be connected to a pair of corresponding first connecting parts 111 and second connecting parts, thereby connecting the clamping structure 1 and the fixing parts 21 together, and the clamping parts are installed on the inner wall surface of the tower through the fixing parts 21, so that the clamping structure 1 can clamp the steel strands 4 attached to the inner wall surface of the tower.

[0044] The fire prevention device provided in this embodiment is as follows: Figure 1 As shown, a plurality of fixing portions 211 are provided on the fixing member 21 , and the fixing member 21 is suitable for being connected to the inner wall surface of the tower through the fixing portions 211 .

[0045] The fire protection device of the above structure is provided with a plurality of fixing parts 211 on the fixing part 21. The fixing parts 211 are fixing holes in this embodiment. Since embedded bolts are provided on the inner wall surface of the tower, when the fixing part 21 is installed on the inner wall surface of the tower, the embedded bolts can be connected to the fixing parts 211, and then the fixing part 21 can be installed on the inner wall surface of the tower.

[0046] The fire prevention device provided in this embodiment is as follows: Figure 1 As shown, a threaded portion is provided on the connecting member 22, and the threaded portion is provided at the end of the connecting member 22 away from the fixing member 21. When the end of the connecting member 22 away from the fixing member 21 passes through the first connecting portion 111 and the second connecting portion in sequence, the threaded portion is suitable for connecting with a nut to fix the clamping structure 1 on the fixing member 21.

[0047] The fire protection device of the above structure is provided with a threaded portion on the connecting member 22. The threaded portion is a thread in this embodiment. The threaded portion is specifically provided at one end of the connecting member 22 away from the fixing member 21. When the connecting member 22 is connected to a pair of corresponding first connecting portions 111 and second connecting portions, the end of the connecting member 22 away from the fixing member 21 can be passed through the first connecting portion 111 and the second connecting portion in sequence, and connected to the threaded portion on the connecting member 22 through a nut, thereby fixing the clamping structure 1 on the fixing member 21.

[0048] The fire prevention device provided in this embodiment is as follows: Figure 1 As shown, the first clamping member 11 and the second clamping member 12 have the same structure to clamp the steel strand 4 together.

[0049] The fire protection device of the above structure is configured such that the first clamping member 11 and the second clamping member 12 have the same structure, so that when the first clamping member 11 and the second clamping member 12 are respectively in contact with the steel strand 4, the first clamping member 11 and the second clamping member 12 have the same clamping effect on the steel strand 4, and when the first clamping member 11 and the second clamping member 12 are connected, the first connecting portion 111 and the second connecting portion can quickly correspond to each other, which is beneficial to improving the connection efficiency of the first clamping member 11 and the second clamping member 12.

[0050] The fire prevention device provided by the present invention is provided with a fixed structure 2 and a clamping structure 1 arranged on the inner wall surface of the tower, wherein the clamping structure 1 includes a first clamping member 11 and a second clamping member 12, the first clamping member 11 and the second clamping member 12 are connected to each other, and the first clamping member 11 has a first clamping cavity, and the second clamping member 12 has a second clamping member 12, so that after the first clamping member 11 and the second clamping member 12 are connected together, the first clamping cavity and the second clamping cavity can jointly form a clamping cavity, and the clamping cavity can clamp the steel strand 4 therein when the first clamping member 11 and the second clamping member 12 are respectively in contact with the steel strand 4, so as to protect the steel strand 4 through the first clamping member 11 and the second clamping member 12, and the fixed structure 2 can be connected to the inner wall surface of the tower and the clamping structure 1 respectively, so that the clamping structure 1 is installed on the inner wall surface of the tower, from The clamping structure 1 is capable of clamping the steel strand 4 attached to the inner wall of the tower. In addition, fireproofing parts 3 are provided in the first clamping cavity and the second clamping cavity. The fireproofing parts 3 are specifically attached to the inner wall surfaces of the first clamping cavity and the second clamping cavity. Therefore, when the first clamping part 11 and the second clamping part 12 are respectively in contact with the steel strand 4, that is, when the steel strand 4 is clamped by the clamping cavity, the fireproofing parts 3 can be provided between the steel strand 4 and the clamping parts, so that the fireproofing parts 3 can provide heat insulation for the steel strand 4. Further, when a safety accident such as fire or explosion occurs in the electrical equipment in the tower, the clamping parts and the fireproofing parts 3 can isolate the flame and high temperature in the tower from the steel strand 4 to avoid the steel strand 4 being directly exposed to the flame and high temperature environment and breaking in the high temperature environment, thereby enhancing the protection measures of the tower and helping to improve the safety of the tower.

[0051] Example 2

[0052] This embodiment provides a wind turbine generator system, such as Figure 1As shown, it includes the above-mentioned fire prevention device. The wind turbine of the above-mentioned structure includes the above-mentioned fire prevention device by setting it, that is, by setting the fixed structure 2 and the clamping structure 1 on the inner wall of the tower, wherein the clamping structure 1 includes a first clamping member 11 and a second clamping member 12, the first clamping member 11 and the second clamping member 12 are connected to each other, and the first clamping member 11 has a first clamping cavity, and the second clamping member 12 has a second clamping member 12, so that after the first clamping member 11 and the second clamping member 12 are connected together, the first clamping cavity and the second clamping cavity can jointly form a clamping cavity, and the clamping cavity can clamp the steel strand 4 therein when the first clamping member 11 and the second clamping member 12 are respectively in contact with the steel strand 4, so as to protect the steel strand 4 through the first clamping member 11 and the second clamping member 12, and the fixed structure 2 can be connected to the inner wall of the tower and the clamping structure 1 respectively, so as to install the clamping structure 1 on the tower. On the inner wall surface, the clamping structure 1 can clamp the steel strand 4 attached to the inner wall surface of the tower. In addition, fireproof parts 3 are provided in the first clamping cavity and the second clamping cavity. The fireproof parts 3 are specifically attached to the inner wall surfaces of the first clamping cavity and the second clamping cavity. When the first clamping part 11 and the second clamping part 12 are respectively in contact with the steel strand 4, that is, when the steel strand 4 is clamped by the clamping cavity, the fireproof part 3 can be provided between the steel strand 4 and the clamping part, so that the fireproof part 3 can provide heat insulation for the steel strand 4. When a fire or explosion occurs in the electrical equipment in the tower, the clamping part and the fireproof part 3 can isolate the flame and high temperature in the tower from the steel strand 4 to avoid the steel strand 4 being directly exposed to the flame and high temperature environment and breaking in the high temperature environment, thereby enhancing the protection measures of the tower and helping to improve the safety of the tower.

[0053] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A fire prevention device, characterized in that: include: A clamping structure (1) comprises a first clamping member (11) and a second clamping member (12) connected to each other, wherein the first clamping member (11) has a first clamping cavity, and the second clamping member (12) has a second clamping cavity, so that the first clamping member (11) and the second clamping member (12) jointly form a clamping cavity when the first clamping member (11) and the second clamping member (12) are connected; A plurality of fixing structures (2), any one of the fixing structures (2) being suitable for connecting with the inner wall surface of the tower and the clamping structure (1) to fix the clamping structure (1) on the inner wall surface of the tower; Wherein, a fireproofing member (3) is provided on the inner wall surface of the first clamping cavity and the second clamping cavity, and when the first clamping member (11) and the second clamping member (12) clamp the steel strand (4) through the clamping cavity, the fireproofing member (3) is provided between the steel strand (4) and the clamping member.

2. The fire protection device according to claim 1, characterized in that: The first clamping member (11) is provided with a plurality of first connecting portions (111), and the second clamping member (12) is provided with a plurality of second connecting portions corresponding one to one with the first connecting portions (111). Any of the first connecting portions (111) is suitable for connecting with one of the second connecting portions to connect the first clamping member (11) and the second clamping member (12).

3. The fire protection device according to claim 2, characterized in that: The first clamping member (11) comprises a first clamping portion (112) and two first transition portions (113), wherein the two first transition portions (113) are arranged on both sides of the first clamping portion (112), the first clamping portion (112) and the two first transition portions (113) jointly form the first clamping cavity, and all the first connecting portions (111) are opened on the two first transition portions (113).

4. The fire protection device according to claim 3, characterized in that: The second clamping member (12) comprises a second clamping portion and two second transition portions, the two second transition portions are arranged on both sides of the second clamping portion, the second clamping portion and the two second transition portions jointly form the second clamping cavity, and all the second connecting portions are opened on the two second transition portions.

5. The fire protection device according to claim 4, characterized in that: The cross-sectional shapes of the first clamping cavity and the second clamping cavity are both semicircular, so that when the first clamping cavity and the second clamping cavity together form a clamping cavity, the cross-sectional shape of the clamping cavity is an outer circle.

6. The fire protection device according to any one of claims 2 to 5, characterized in that: The fixed structure (2) comprises mutually connected fixing members (21) and a plurality of connecting members (22), wherein the fixing members (21) are suitable for being connected to the inner wall surface of the tower, and any of the connecting members (22) is suitable for being connected to a pair of corresponding first connecting portions (111) and second connecting portions to connect the clamping structure (1) and the fixed structure (2).

7. The fire protection device according to claim 6, characterized in that: The fixing member (21) is provided with a plurality of fixing portions (211), and the fixing member (21) is suitable for being connected to the inner wall surface of the tower through the fixing portions (211).

8. The fire protection device according to claim 7, characterized in that: The connecting member (22) is provided with a threaded portion, and the threaded portion is provided at one end of the connecting member (22) away from the fixing member (21). When the end of the connecting member (22) away from the fixing member (21) passes through the first connecting portion (111) and the second connecting portion in sequence, the threaded portion is suitable for connecting with a nut to fix the clamping structure (1) on the fixing member (21).

9. The fire protection device according to claim 1, characterized in that: The first clamping member (11) and the second clamping member (12) have the same structure so as to clamp the steel strand (4) together.

10. A wind turbine generator system, characterized in that: The fire protection device comprises the fire protection device according to any one of claims 1 to 9.

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