Perfluorohexanone cabinet type fire extinguishing device for wind power generator cabin

Abstract

The utility model relates to the technical field of fire fighting equipment, in particular to a perfluorohexanone cabinet type fire extinguishing device for a wind power generator cabin, which comprises the wind power generator cabin, a perfluorohexanone cabinet is arranged on the upper surface of a bottom plate of the wind power generator cabin, and a fire extinguishing agent bottle filled with a perfluorohexanone fire extinguishing agent is arranged in the perfluorohexanone cabinet. The fire extinguishing agent bottle is communicated with a fire extinguishing agent conveying assembly; a spraying assembly is arranged on the lower surface of a top plate of the wind power generator cabin, the spraying assembly is communicated with the fire extinguishing agent conveying assembly, a fire detection module is further arranged on the lower surface of the top plate of the wind power generator cabin, and the fire detection module is connected with the perfluorohexanone cabinet. The device is directly arranged in a wind power generator cabin and can be suitable for small and medium-sized wind power generator cabins; perfluorohexanone is adopted as the fire extinguishing agent, so that the phenomenon that the fire extinguishing agent remains in the cabin of the wind power generator can be avoided, and normal operation of the wind power generator set after fire extinguishing is ensured.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, specifically to a perfluorohexanone cabinet-type fire extinguishing device for wind turbine nacelles. Background Technology

[0002] In today's booming green energy landscape, wind power, as a crucial component of clean energy, is experiencing a continuous increase in installed capacity and a gradual extension of its service life. A wind turbine is a device that converts wind energy into electrical energy, primarily composed of blades, a generator, mechanical components, and electrical components. It utilizes wind power to drive the turbine blades to rotate, and a speed increaser further accelerates the rotation to power the generator. However, with the long-term operation of wind turbines, the risk of fire has become increasingly prominent, especially in recent years, with frequent fire accidents posing a significant safety challenge that people must confront.

[0003] Because wind turbine nacelles contain a large amount of flammable materials, such as oil, plastics, and hydraulic oil, fire is one of the main safety hazards of wind power. Once a fire occurs, wind turbines are often located in remote, high-altitude areas, and fire trucks are usually unable to be used for firefighting, which can easily cause serious casualties and huge property losses. Therefore, wind turbine nacelles are usually equipped with fire extinguishing devices. However, existing fire extinguishing systems are relatively complex and costly, making them unsuitable for small and medium-sized wind turbine nacelles. Furthermore, the sprayed extinguishing agent can easily remain inside the wind turbine nacelle, affecting the normal operation of the wind turbine. For example, Chinese utility model patent CN215691201U discloses a passive ultrafine dry powder automatic fire extinguishing device for wind turbine nacelles. This fire extinguishing device uses ultrafine dry powder for fire extinguishing. The ultrafine dry powder extinguishing agent is fine, and the particles have a certain weight. They float in the air for a limited time and once they settle, they will not move again. When there are obstructions, the dry powder is difficult to overcome. All equipment is contaminated during and after firefighting. If the equipment is accidentally started, the cleaning cost is high, and if it is not cleaned properly, the equipment will malfunction. For example, the Chinese utility model patent with authorization announcement number CN215608920U discloses a high-pressure fine water mist fire extinguishing device for wind turbine nacelles. The water supply unit and water tank of this fire extinguishing device are set at the bottom of the tower and connected to the nozzles in the nacelle through high-pressure hoses. It requires a water tank, high-pressure pump set and high-pressure pipeline. The system is relatively complex and costly, and is suitable for the protection of large wind turbine nacelles with high unit cost. Summary of the Invention

[0004] This invention addresses the problems of existing fire extinguishing devices being unsuitable for small and medium-sized wind turbine nacelles and the tendency for sprayed extinguishing agents to remain inside the nacelles. It provides a perfluorohexanone (PFH) cabinet-type fire extinguishing device for wind turbine nacelles. This device occupies little space, can be installed inside the wind turbine nacelle, and is suitable for small and medium-sized wind turbine nacelles. Using PPH as the extinguishing agent, the device rapidly vaporizes after spraying, preventing extinguishing agent residue inside the wind turbine nacelle and ensuring the normal operation of the wind turbine generator after fire suppression.

[0005] To achieve the above objectives, the technical solution of this utility model is: a perfluorohexanone (PFH) cabinet-type fire extinguishing device for wind turbine nacelles, comprising a wind turbine nacelle, wherein a PPH cabinet is installed on the upper surface of the bottom plate of the wind turbine nacelle, and fire extinguishing agent bottles filled with PPH extinguishing agent are arranged inside the PPH cabinet, the fire extinguishing agent bottles being connected to a fire extinguishing agent delivery assembly. The PPH cabinet is directly installed inside the wind turbine nacelle, occupying a small area and achieving suitability for small and medium-sized wind turbine nacelles; the PPH cabinet serves to store the fire extinguishing agent bottles, which are used to store PPH extinguishing agent, and the fire extinguishing agent delivery assembly is used to deliver the PPH extinguishing agent from the fire extinguishing agent bottles to the interior of the wind turbine nacelle.

[0006] A spray assembly is installed on the lower surface of the top plate of the wind turbine nacelle, and the spray assembly is connected to the fire extinguishing agent delivery assembly. A fire detection module is also installed on the lower surface of the top plate of the wind turbine nacelle, and the fire detection module is connected to the perfluorohexanone cabinet. The fire extinguishing agent delivery assembly delivers the perfluorohexanone fire extinguishing agent from the fire extinguishing agent cylinder to the spray assembly, which then sprays the perfluorohexanone fire extinguishing agent into the wind turbine nacelle. The fire detection module is used to detect fires inside the wind turbine nacelle.

[0007] Furthermore, the perfluorohexanone cabinet includes a cabinet base, a cabinet body, and a cabinet door. The cabinet body is located on top of the cabinet base, and the cabinet door is movably installed on one side of the cabinet body. The cabinet door allows for easy opening of the cabinet body to disassemble and replace the fire extinguishing agent cylinders inside the cabinet.

[0008] Furthermore, there are two fire extinguishing agent cylinders. A fixing base is fixedly installed on the top of the cabinet base, and the fire extinguishing agent cylinder is located inside the fixing base. A fixing strap is provided on the inner side wall of the cabinet body, and the fixing strap is sleeved on the fire extinguishing agent cylinder. The fixing base serves to install the fire extinguishing agent cylinder and can restrict the position of the fire extinguishing agent cylinder. The fixing strap further secures the fire extinguishing agent cylinder to prevent it from tipping over inside the perfluorohexanone cabinet.

[0009] Furthermore, the outlet at the top of the extinguishing agent cylinder is connected in sequence to a manual shut-off valve, a solenoid valve, and a check valve via a pipeline. A pressure gauge is installed between the manual shut-off valve and the solenoid valve, and a pressure switch is installed between the solenoid valve and the check valve. Both the manual shut-off valve and the solenoid valve function to open and close the pipeline. The pressure gauge detects the pressure of the injected perfluorohexanone extinguishing agent. The check valve controls the unidirectional flow of the perfluorohexanone extinguishing agent, preventing reverse flow. The pressure switch detects the pressure signal, enabling pressure detection and control.

[0010] Furthermore, the extinguishing agent delivery assembly includes a three-way pipe and a cabinet outlet pipe. The two ends of the three-way pipe are connected to the two one-way valves respectively. One end of the cabinet outlet pipe is connected to the three-way pipe, and the other end extends to the outside of the perfluorohexanone cabinet. The perfluorohexanone extinguishing agent in the extinguishing agent cylinder can be delivered to the spray assembly through the three-way pipe and the cabinet outlet pipe.

[0011] Furthermore, the spray assembly includes a main spray pipe, spray branch pipes, and spray nozzles. Multiple spray branch pipes are spaced apart on the main spray pipe, and multiple spray nozzles are spaced apart on each spray branch pipe. One end of the main spray pipe is connected to the cabinet's liquid outlet pipe. Perfluorohexanone extinguishing agent from the extinguishing agent cylinder is transported to the main spray pipe via the cabinet's liquid outlet pipe and sprayed into the wind turbine nacelle by the spray nozzles in the spray branch pipes, extinguishing and controlling the fire in the fire-affected area within the wind turbine nacelle.

[0012] Furthermore, the upper part of the perfluorohexanone cabinet is equipped with a display screen and a fire alarm controller. The fire detection module includes a heat detector, a smoke detector, and an alarm signal line. The heat detector and the smoke detector are installed on the lower surface of the top plate of the wind turbine nacelle. The heat detector determines whether a fire has occurred by monitoring the temperature inside the wind turbine nacelle, and the smoke detector determines whether a fire has occurred by monitoring the smoke concentration inside the wind turbine nacelle.

[0013] Furthermore, the heat detector and smoke detector are electrically connected to the fire alarm controller via alarm signal lines, and the solenoid valve and display screen are electrically connected to the fire alarm controller; the solenoid valve and pressure switch are also electrically connected to the display screen. Upon detecting a fire, the heat detector and smoke detector transmit a signal to the fire alarm controller, which then controls the solenoid valve to open, spraying perfluorohexanone extinguishing agent into the wind turbine nacelle through a three-way pipe to extinguish and control the fire in the affected area.

[0014] The beneficial effects of this utility model through the above technical solution are as follows:

[0015] This utility model has a reasonable structure and good performance. It can be directly installed inside the wind turbine nacelle, occupying a small area, requiring no particularly long pipelines, and is simple to construct. It is suitable for small and medium-sized wind turbine nacelles. It uses a high-pressure gas cylinder to fill the extinguishing agent, which can be sprayed directly after being opened without power. Perfluorohexanone is used as the extinguishing agent. Perfluorohexanone extinguishing agent can be rapidly vaporized after being sprayed, which can avoid the phenomenon of extinguishing agent residue inside the wind turbine nacelle. It will not cause pollution to the equipment during or after fire extinguishing, and ensures the normal operation of the wind turbine after fire extinguishing. Even if it is not sprayed, it will not affect the equipment. Perfluorohexanone extinguishing agent is extremely easy to vaporize and has a dual function of cooling and extinguishing fire. It is an innovation in the field of fire protection and has good social and economic benefits.

[0016] The perfluorohexanone cabinet of this invention serves to store fire extinguishing agent cylinders. The cabinet has two fire extinguishing agent cylinders, one for use and one for backup. When the main fire extinguishing agent cylinder malfunctions, it automatically switches to the backup fire extinguishing agent cylinder. Through the cooperation of the solenoid valve and the fire alarm controller, it ensures that the fire area inside the wind turbine nacelle can be extinguished.

[0017] This utility model's heat-sensitive fire detector determines whether a fire has occurred by monitoring the temperature inside the wind turbine nacelle, and the smoke-sensitive fire detector determines whether a fire has occurred by monitoring the smoke concentration inside the wind turbine nacelle. After detecting a fire, the heat-sensitive fire detector and the smoke-sensitive fire detector can transmit the signal to the fire alarm controller, which will then control the opening of the solenoid valve to spray perfluorohexanone extinguishing agent into the wind turbine nacelle through a three-way pipe, thereby extinguishing and controlling the fire in the affected area.

[0018] The perfluorohexanone extinguishing agent in the extinguishing agent bottle of this utility model can be transported to the main spray pipe of the spray assembly through the three-way pipe of the extinguishing agent delivery assembly and the liquid outlet pipe of the cabinet. The spray nozzle in the spray branch pipe is then sprayed into the wind turbine nacelle, so as to achieve the effect of extinguishing and controlling the fire in the fire area inside the wind turbine nacelle. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a perfluorohexanone cabinet-type fire extinguishing device for a wind turbine nacelle according to this utility model;

[0020] Figure 2 This is a structural schematic diagram of the perfluorohexanone cabinet of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the perfluorohexanone cabinet of this utility model.

[0022] The attached diagram is labeled as follows: 1 is the wind turbine nacelle, 2 is the perfluorohexanone cabinet, 201 is the cabinet base, 202 is the cabinet body, 203 is the cabinet door, 3 is the main spray pipe, 4 is the spray branch pipe, 5 is the spray nozzle, 6 is the heat detector, 7 is the smoke detector, 8 is the alarm signal line, 9 is the mounting base, 10 is the extinguishing agent bottle, 11 is the fixing strap, 12 is the manual shut-off valve, 13 is the pressure gauge, 14 is the solenoid valve, 15 is the pressure switch, 16 is the check valve, 17 is the tee pipe, 18 is the cabinet outlet pipe, 19 is the display screen, and 20 is the fire alarm controller. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0024] like Figures 1-3 As shown, a perfluorohexanone cabinet-type fire extinguishing device for a wind turbine nacelle includes a wind turbine nacelle 1. A perfluorohexanone cabinet 2 is provided on the upper surface of the bottom plate of the wind turbine nacelle 1. The interior of the perfluorohexanone cabinet 2 is provided with a fire extinguishing agent bottle 10 filled with perfluorohexanone fire extinguishing agent. The fire extinguishing agent bottle 10 is connected to a fire extinguishing agent delivery assembly. In this embodiment, the perfluorohexanone cabinet 2 is directly installed inside the wind turbine nacelle 1, achieving an effect suitable for small and medium-sized wind turbine nacelles; the fire extinguishing agent bottle 10 stores perfluorohexanone fire extinguishing agent. The fire extinguishing agent bottle 10 is a high-pressure gas cylinder, requiring no power. Once opened, it can spray out perfluorohexanone fire extinguishing agent. Perfluorohexanone fire extinguishing agent is a new type of environmentally friendly fire extinguishing agent with excellent insulation properties and a dielectric strength of up to 110KV, which can extinguish electrical fires; the fire extinguishing agent delivery assembly can deliver the perfluorohexanone fire extinguishing agent stored in the fire extinguishing agent bottle 10 to the inside of the wind turbine nacelle 1 to extinguish and control the fire in the fire area inside the wind turbine nacelle 1.

[0025] A spray assembly is installed on the lower surface of the top plate of the wind turbine nacelle 1, and the spray assembly is connected to the fire extinguishing agent delivery assembly. A fire detection module is also installed on the lower surface of the top plate of the wind turbine nacelle 1, and the fire detection module is connected to the perfluorohexanone cabinet 2. In this embodiment, the perfluorohexanone fire extinguishing agent stored in the fire extinguishing agent bottle 10 can be delivered to the spray assembly via the fire extinguishing agent delivery assembly, and then sprayed into the interior of the wind turbine nacelle 1 by the spray assembly to extinguish and control the fire in the fire area inside the wind turbine nacelle 1; the fire detection module monitors the fire occurring inside the wind turbine nacelle 1.

[0026] The perfluorohexanone cabinet 2 includes a cabinet base 201, a cabinet body 202, and a cabinet door 203. The cabinet body 202 is located on top of the cabinet base 201, and the cabinet door 203 is movably installed on one side of the cabinet body 202. In this embodiment, the cabinet body 202 is hollow inside, and the cabinet door 203 is connected to the cabinet body 202 by a hinge, so as to facilitate opening the cabinet door 203 to disassemble and replace the fire extinguishing agent bottle 10 inside the cabinet body 202.

[0027] There are two fire extinguishing agent bottles 10. A fixing seat 9 is fixedly installed on the top of the cabinet base 201, and the fire extinguishing agent bottle 10 is located inside the fixing seat 9. A fixing strap 11 is provided on the inner side wall of the cabinet body 202, and the fixing strap 11 is sleeved on the fire extinguishing agent bottle 10. In this embodiment, one of the two fire extinguishing agent cylinders 10 is in use and the other is a spare. The two fire extinguishing agent cylinders 10 are a main fire extinguishing agent cylinder 10 and a spare fire extinguishing agent cylinder 10. There are also two fixing seats 9 on the top of the cabinet base 201. The cabinet base 201 has a circular groove that matches the fire extinguishing agent cylinder 10. The circular groove can restrict the position of the fire extinguishing agent cylinder 10 by the fixing seat 9, and the fixing seat 9 plays a limiting role for the fire extinguishing agent cylinder 10. There are also two fixing straps 11 on the inner side wall of the cabinet body 202. The fixing straps 11 further fix the fire extinguishing agent cylinder 10 located inside the perfluorohexanone cabinet 2 to prevent the fire extinguishing agent cylinder 10 from tipping over inside the perfluorohexanone cabinet 2.

[0028] The outlet at the top of the extinguishing agent cylinder 10 is connected in sequence to a manual shut-off valve 12, a solenoid valve 14, and a one-way valve 16 via a pipeline. A pressure gauge 13 is installed between the manual shut-off valve 12 and the solenoid valve 14, and a pressure switch 15 is installed between the solenoid valve 14 and the one-way valve 16. In this embodiment, both the manual shut-off valve 12 and the solenoid valve 14 function to open and close the pipeline. The manual shut-off valve 12 is normally open. The pressure gauge 13 detects the pressure of the extinguishing agent cylinder 10. The one-way valve 16 controls the flow direction of the perfluorohexanone extinguishing agent, preventing reverse flow. The pressure switch 15 detects the pressure signal.

[0029] The extinguishing agent delivery assembly includes a three-way pipe 17 and a cabinet outlet pipe 18. Both ends of the three-way pipe 17 are connected to two one-way valves 16, respectively. One end of the cabinet outlet pipe 18 is connected to the three-way pipe 17, and the other end extends to the outside of the perfluorohexanone cabinet 2. In this embodiment, by opening the manual shut-off valve 12 and the solenoid valve 14 connected to the main extinguishing agent cylinder 10, the perfluorohexanone extinguishing agent inside the extinguishing agent cylinder 10 is sequentially delivered to the spray assembly via the three-way pipe 17 and the cabinet outlet pipe 18. The top of the perfluorohexanone cabinet 2 has a through hole for the cabinet outlet pipe 18 to pass through.

[0030] The spray assembly includes a main spray pipe 3, spray branch pipes 4, and spray nozzles 5. Multiple spray branch pipes 4 are spaced apart on the main spray pipe 3, and multiple spray nozzles 5 are spaced apart on each spray branch pipe 4. One end of the main spray pipe 3 is connected to the cabinet outlet pipe 18. In this embodiment, there are two spray branch pipes 4 on the main spray pipe 3, and two spray nozzles 5 on each spray branch pipe 4, located at opposite ends of the spray branch pipe 4. The spray nozzles 5 are perfluorohexanone fine mist nozzles authorized under CN308028745S. The perfluorohexanone extinguishing agent is delivered to the main spray pipe 3 via the cabinet outlet pipe 18, and then to the spray branch pipes 4, where it is sprayed out by the spray nozzles 5 at both ends of the spray branch pipes 4 to extinguish and control the fire in the fire area inside the wind turbine nacelle 1.

[0031] The upper part of the perfluorohexanone cabinet 2 is equipped with a display screen 19 and a fire alarm controller 20. The fire detection module includes a heat detector 6, a smoke detector 7, and an alarm signal line 8. The heat detector 6 and the smoke detector 7 are installed on the lower surface of the top plate of the wind turbine nacelle 1. In this embodiment, the heat detector 6 determines whether a fire has occurred by monitoring the temperature inside the wind turbine nacelle, and the smoke detector 7 determines whether a fire has occurred by monitoring the smoke concentration inside the wind turbine nacelle 1. The heat detector 6 and the smoke detector 7 simultaneously monitor whether a fire has occurred inside the wind turbine nacelle 1.

[0032] The heat detector 6 and smoke detector 7 are electrically connected to the fire alarm controller 20 via alarm signal line 8. The solenoid valve 14 and display screen 19 are also electrically connected to the fire alarm controller 20. The solenoid valve 14 and pressure switch 15 are electrically connected to the display screen 19. In this embodiment, when a fire occurs inside the wind turbine nacelle 1, the heat detector 6 and smoke detector 7 can transmit the detected signals to the fire alarm controller 20 via alarm signal line 8. The fire alarm controller 20 then controls the solenoid valve 14 connected to the main extinguishing agent cylinder 10 to open. The opening signal of the solenoid valve 14 and the feedback signal of the pressure switch 15 can be displayed on the display screen 19.

[0033] The working principle of this utility model is as follows: the perfluorohexanone cabinet 2 is placed on the top edge of the bottom plate of the wind turbine nacelle 1, and the spray nozzle 5 is installed at the bottom of the top plate of the wind turbine nacelle 1. The spray nozzle 5 is connected to the spray main pipe 3 through the spray branch pipe 4, and then the spray main pipe 3 is connected to the cabinet outlet pipe 18; the heat fire detector 6 and the smoke fire detector 7 are installed at the bottom of the top plate of the wind turbine nacelle 1, and are connected to the fire alarm controller 20 through the alarm signal line 8.

[0034] When the heat detector 6 and the smoke detector 7 detect a fire inside the wind turbine nacelle 1, they transmit alarm signals to the fire alarm controller 20 via the alarm signal line 8. Upon receiving the two fire alarm signals, the fire alarm controller 20 automatically activates the solenoid valve 14 connected to the main extinguishing agent cylinder 10. The perfluorohexanone extinguishing agent stored in the cylinder 10 is then sequentially transported through the three-way pipe 17 and the cabinet outlet pipe 18 to the main spray pipe 3, and then further transported to the spray branch pipes 4, from where it is sprayed. The spray nozzles 5 at both ends of the mist branch pipe 4 spray out to extinguish and control the fire in the fire area inside the wind turbine nacelle 1; when the solenoid valve 14 of the main extinguishing agent cylinder 10 is opened, if the pressure switch 15 of the main extinguishing agent cylinder 10 does not detect a pressure signal within 3 seconds, the fire alarm controller 20 controls the solenoid valve 14 of the backup extinguishing agent cylinder 10 to open and extinguish and control the fire in the fire area inside the wind turbine nacelle 1; during the process of spraying perfluorohexanone extinguishing agent, the opening signal of the solenoid valve 14 and the feedback signal of the pressure switch 15 are displayed on the display screen 19.

[0035] The embodiments described above are merely preferred embodiments of the utility model and are not intended to limit the scope of the utility model. Therefore, all equivalent changes or modifications made to the technical solutions described in the scope of the utility model patent application should be included within the scope of the utility model patent application.

Claims

1. A perfluorohexanone cabinet-type fire extinguishing device for a wind turbine nacelle, comprising a wind turbine nacelle (1), characterized in that, The bottom plate of the wind turbine nacelle (1) is provided with a perfluorohexanone cabinet (2), and the interior of the perfluorohexanone cabinet (2) is provided with a fire extinguishing agent bottle (10) filled with perfluorohexanone fire extinguishing agent, and the fire extinguishing agent bottle (10) is connected to a fire extinguishing agent delivery assembly. A spray assembly is provided on the lower surface of the top plate of the wind turbine nacelle (1), and the spray assembly is connected to the fire extinguishing agent delivery assembly. A fire detection module is also provided on the lower surface of the top plate of the wind turbine nacelle (1), and the fire detection module is connected to the perfluorohexanone cabinet (2). The outlet at the top of the extinguishing agent bottle (10) is connected in sequence to a manual shut-off valve (12), a solenoid valve (14) and a check valve (16) via a pipe. A pressure gauge (13) is installed between the manual shut-off valve (12) and the solenoid valve (14), and a pressure switch (15) is installed between the solenoid valve (14) and the check valve (16).

2. A perfluorocyclohexanone cabinet-type fire extinguishing apparatus for a wind power generator cabin according to claim 1, characterized in that, The perfluorohexanone cabinet (2) includes a cabinet base (201), a cabinet body (202), and a cabinet door (203). The cabinet body (202) is located on the top of the cabinet base (201), and the cabinet door (203) is movably located on one side of the cabinet body (202).

3. A perfluorocyclohexanone cabinet-type fire extinguishing apparatus for a wind power generator cabin according to claim 2, characterized in that, There are two fire extinguishing agent bottles (10). A fixing seat (9) is fixedly installed on the top of the cabinet base (201), and the fire extinguishing agent bottle (10) is located inside the fixing seat (9). A fixing strap (11) is provided on the inner side wall of the cabinet body (202), and the fixing strap (11) is sleeved on the fire extinguishing agent bottle (10).

4. A perfluorocyclohexanone cabinet-type fire extinguishing apparatus for a wind power generator cabin according to claim 1, characterized in that, The fire extinguishing agent delivery assembly includes a three-way pipe (17) and a cabinet outlet pipe (18). The two ends of the three-way pipe (17) are respectively connected to the two one-way valves (16). One end of the cabinet outlet pipe (18) is connected to the three-way pipe (17), and the other end extends to the outside of the perfluorohexanone cabinet (2).

5. A perfluorocyclohexanone cabinet-type fire extinguishing apparatus for a wind power generator cabin according to claim 4, characterized in that, The spray assembly includes a main spray pipe (3), spray branch pipes (4) and spray nozzles (5). Multiple spray branch pipes (4) are arranged at intervals on the main spray pipe (3), and multiple spray nozzles (5) are arranged at intervals on the spray branch pipes (4). One end of the main spray pipe (3) is connected to the cabinet liquid outlet pipe (18).

6. A perfluorocyclohexanone cabinet-type fire extinguishing apparatus for a wind power generator cabin according to claim 1, characterized in that, The upper part of the perfluorohexanone cabinet (2) is equipped with a display screen (19) and a fire alarm controller (20). The fire detection module includes a heat fire detector (6), a smoke fire detector (7) and an alarm signal line (8). The heat fire detector (6) and the smoke fire detector (7) are installed on the lower surface of the top plate of the wind turbine nacelle (1).

7. A perfluorocyclohexanone cabinet-type fire extinguishing apparatus for a wind power generator cabin according to claim 6, characterized in that, The heat detector (6) and smoke detector (7) are electrically connected to the fire alarm controller (20) via alarm signal line (8). The solenoid valve (14) and display screen (19) are electrically connected to the fire alarm controller (20). The solenoid valve (14) and pressure switch (15) are electrically connected to the display screen (19).

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