Wind driven generator cooling system and wind driven generator

Abstract

The invention discloses a wind driven generator cooling system and a wind driven generator. The wind driven generator cooling system comprises spraying equipment, a water storage tank and a dehumidifier, the water storage tank is communicated with the spraying equipment and used for supplying water to the spraying equipment, the dehumidifier is arranged in a cabin of a wind driven generator and communicated with the water storage tank, the dehumidifier is provided with an inner air inlet, an outer air inlet and an air outlet, the inner air inlet is communicated with the interior of the cabin, and the outer air inlet is communicated with the air outlet. The outer air inlet is communicated with the outside of the cabin, the dehumidifier treats wet air sucked by the inner air inlet and / or the outer air inlet into dry air, then the dry air is discharged into the cabin through the air outlet, and water generated in the treatment process of the dehumidifier is conveyed to the water storage tank. According to the technical scheme, manual carrying or external power source transmission water replenishing is not needed, and the water source obtaining cost is reduced.

Description

Technical Field

[0001] This application relates to the field of wind turbine technology, and in particular to a wind turbine cooling system and a wind turbine. Background Technology

[0002] When a wind turbine is running, the core components such as the generator and gearbox inside the nacelle will generate a lot of heat. If the heat is not dissipated in time, the efficiency and lifespan of the unit will be affected by overheating of the components. Therefore, effective heat dissipation is the key to ensuring the stable operation of the unit.

[0003] In existing technologies, water cooling is commonly used to dissipate heat from wind turbine nacelle components, which relies on a stable water supply. Currently, water is mainly obtained by manually transporting it to the nacelle or by using external power sources such as pumps to transfer it to the nacelle. This not only results in high water acquisition costs but is also difficult to operate due to limitations imposed by the nacelle installation environment (especially for offshore models), making it difficult to meet the requirements for long-term stable operation of wind turbines. Summary of the Invention

[0004] The purpose of this application is to provide a wind turbine cooling system and a wind turbine that do not require manual handling or external power source to transmit water, thereby reducing the cost of obtaining water.

[0005] In a first aspect, the present invention provides a wind turbine cooling system, comprising:

[0006] Sprinkler equipment;

[0007] A water storage tank is connected to the spraying equipment, and the water storage tank is used to supply water to the spraying equipment;

[0008] A dehumidifier is installed inside the nacelle of a wind turbine and is connected to the water storage tank. The dehumidifier has an inner air inlet, an outer air inlet, and an air outlet. The inner air inlet is connected to the interior of the nacelle, and the outer air inlet is connected to the exterior of the nacelle. The dehumidifier draws in humid air through the inner air inlet and / or the outer air inlet, processes the humid air into dry air, and then discharges it into the interior of the nacelle through the air outlet. The dehumidifier also transports the moisture generated during the dehumidification process to the water storage tank.

[0009] Beneficial effects: This wind turbine cooling system installs a dehumidifier inside the wind turbine nacelle. When the dehumidifier starts operating, it draws in humid air through the internal and / or external air inlets and recovers the moisture from the air into a water storage tank, providing a stable water source for the spray equipment. This eliminates the need for manual handling or external power supply for water replenishment, reducing water acquisition costs. Especially for harsh environments such as offshore wind turbines, it reduces the high costs and operational difficulties associated with manual water replenishment or external power supply, solving the problems of environmentally limited and costly water acquisition in existing water cooling methods.

[0010] Meanwhile, the water storage tank continuously recovers moisture from the air through a dehumidifier, ensuring the continuity of water supply for the spraying equipment, avoiding the risk of water outages that may occur in traditional water supply methods, ensuring that the spraying equipment can continuously and effectively dissipate heat, and guaranteeing the long-term stable operation of the wind turbine generator set.

[0011] In addition, after the dehumidifier processes the humid air into dry air, it discharges the dry air into the cabin, which can effectively reduce the humidity of the air inside the cabin to assist in heat dissipation. At the same time, it can prevent core components such as generators and gearboxes inside the cabin from rusting and insulation aging caused by high humidity environment, thereby reducing the probability of equipment failure, extending the service life of components, and reducing the maintenance cost of the unit.

[0012] In one optional embodiment, the wind turbine cooling system further includes a first detection unit and a controller. The first detection unit is electrically connected to the controller. The first detection unit is used to detect the air humidity value inside and / or outside the nacelle and send it to the controller.

[0013] The controller controls the opening and closing state of the inner air inlet and / or the inner air inlet based on the received air humidity value.

[0014] Beneficial effects: The first detection unit detects the humidity of the air inside and outside the cabin in real time and transmits it to the controller. The controller accurately controls the opening and closing of the inner and outer air inlets based on the air humidity value, so that the dehumidifier draws in humid air from the area with more suitable humidity, avoiding ineffective operation in low humidity environment, thereby reducing unnecessary energy consumption and realizing energy-saving operation of the system.

[0015] In one optional implementation, when the controller receives an air humidity value inside the cabin that is greater than or equal to a preset cabin humidity value, the controller controls the inner air intake to open and the outer air intake to close.

[0016] Beneficial effects: By setting a preset humidity value inside the cabin, when the humidity inside the cabin reaches or exceeds the threshold, the controller will prioritize opening the internal air inlet and close the external air inlet, allowing the dehumidifier to focus on processing the humid air inside the cabin. This can quickly reduce the humidity inside the cabin and prevent problems such as corrosion and insulation aging of core components such as generators and gearboxes caused by excessive humidity, thereby extending the service life of components and reducing the risk of equipment failure.

[0017] In one optional implementation, when the controller receives an air humidity value outside the cabin that is greater than or equal to a preset cabin humidity value, the controller controls the external air intake to open and the internal air intake to close.

[0018] Beneficial effects: When the humidity of the air outside the cabin reaches or exceeds the preset outside humidity value, the controller opens the external air inlet and closes the internal air inlet, allowing the dehumidifier to focus on processing the humid air outside the cabin. Because the humidity of the air outside the cabin is higher and it contains more moisture, the dehumidifier can efficiently recover this moisture to the water tank, replenishing the cooling system with more water. Especially when the humidity inside the cabin is within acceptable limits, this avoids unnecessary processing of the cabin air, making moisture recovery more targeted and efficient.

[0019] In one optional embodiment, the wind turbine cooling system further includes a second detection unit electrically connected to the controller. The second detection unit is used to detect the air temperature value inside the nacelle and send it to the controller.

[0020] When the air temperature value received by the controller is greater than or equal to the preset temperature value, the controller controls the external air inlet to open and the internal air inlet to close.

[0021] Beneficial effects: When the internal temperature of the cabin exceeds the preset value, the controller opens the external air inlet and closes the internal air inlet, allowing the dehumidifier to draw in relatively cool air from outside the cabin. This cool air from outside, after being processed by the dehumidifier, is then discharged into the cabin, directly lowering the ambient temperature and assisting the spray system in dissipating heat from core components. Especially under high-temperature conditions, the introduction of cool external air can quickly remove heat, improving the overall cooling effect and preventing equipment from becoming inefficient or damaged due to overheating.

[0022] In one optional embodiment, the wind turbine cooling system further includes a third detection unit, which is electrically connected to the controller. The third detection unit is used to detect the liquid level in the water tank and send it to the controller.

[0023] When the liquid level height value received by the controller is less than or equal to the preset liquid level value, the controller controls the external air inlet to open and the internal air inlet to close.

[0024] Beneficial effects: When the water level in the storage tank falls below the preset level, the system automatically switches to external circulation mode, utilizing the high humidity of the air outside the engine room to generate water. Since the humidity of the outside air is usually higher than that inside the engine room, this operation can efficiently recover water, quickly replenish the water tank, prevent the spray equipment from shutting down due to insufficient water supply, and ensure the continuous operation of the cooling system.

[0025] In one optional embodiment, the wind turbine cooling system further includes a filtration device, which is connected to both the dehumidifier and the water storage tank. The water generated by the dehumidifier is filtered by the filtration device and then transported to the water storage tank.

[0026] Beneficial effects: The water generated by a dehumidifier may contain impurities from the air, such as dust, sand, and salt spray particles from outside the cabin, or metal shavings and oil stains generated by equipment operation inside the cabin. The filtration device can effectively intercept these impurities, preventing them from entering the water tank and clogging spray pipes and nozzles or adhering to the surface of cooling components. This ensures smooth operation of the subsequent cooling process and reduces the risk of equipment failure due to blockages. Furthermore, clean water reduces the accumulation of dirt inside the water tank, decreasing the frequency of manual tank cleaning; it also reduces the need for pipe dredging and component repairs caused by impurities, indirectly lowering system maintenance costs.

[0027] In one optional embodiment, the dehumidifier is equipped with a fan for drawing humid air into the dehumidifier through the inner air inlet and / or the outer air inlet.

[0028] Beneficial effects: By installing a fan inside the dehumidifier, the fan acts as an active air intake power source, accelerating the flow speed and intake volume of humid air. Whether air is drawn in from inside or outside the dehumidifier, the forced airflow from the fan allows more humid air to quickly enter the dehumidifier's processing chamber, improving the efficiency of moisture condensation or adsorption, thereby generating recyclable water more quickly and replenishing the water tank.

[0029] In one optional embodiment, the cabin is provided with an exhaust valve electrically connected to the controller, and the interior of the cabin is connected to the exterior of the cabin via the exhaust valve;

[0030] The exhaust valve is normally closed. When the external air inlet is open and the internal air inlet is closed, the controller controls the exhaust valve to open.

[0031] Beneficial effects: When the external air inlet is open and the internal air inlet is closed, the exhaust valve opens simultaneously, forming an airflow channel with the external air inlet. High-humidity air from outside the cabin enters the cabin after being processed by the dehumidifier, while the original hot and humid air inside the cabin is discharged through the exhaust valve. This accelerates the removal of heat load and moisture from the cabin, reducing the temperature and humidity inside the cabin more efficiently than natural diffusion, and significantly improving the cooling effect, especially under high temperature and high humidity conditions.

[0032] In one optional embodiment, the spraying device includes a first spraying section and a second spraying section. The first spraying section is located inside the engine compartment and is used to spray the heat dissipation components inside the engine compartment. The second spraying section is located outside the engine compartment and is used to spray the heat dissipation components outside the engine compartment.

[0033] Beneficial effects: The heat dissipation components inside the cabin are in a relatively enclosed environment, where heat is easily accumulated and high cooling precision is required. The first spray section can spray the components in a targeted manner to quickly remove local heat. The heat dissipation components outside the cabin are exposed to the external environment and are greatly affected by the environment. The second spray section sprays the external heat dissipation components, which can accelerate the cooling and heat dissipation of the external heat dissipation components.

[0034] In one optional embodiment, the wind turbine cooling system further includes a cleaning and fire-fighting device located inside the nacelle and connected to the water storage tank.

[0035] Beneficial effects: The cleaning and fire-fighting equipment is connected to the water storage tank, and the water in the storage tank that has been recovered and filtered by the dehumidifier can be used directly as a water source. There is no need to lay an independent water supply pipeline or rely on an external water source, which realizes the reuse of water resources in multiple scenarios and makes fuller use of the resources in the system.

[0036] In one optional embodiment, the wind turbine cooling system further includes a fourth detection unit and a refrigeration device. Both the fourth detection unit and the refrigeration device are electrically connected to the controller. The fourth detection unit is used to detect the liquid temperature value in the water storage tank and send it to the controller. The refrigeration device is located in the water storage tank and is used to cool the liquid in the water storage tank.

[0037] When the liquid temperature value received by the controller is greater than or equal to the preset liquid temperature value, the controller controls the refrigeration equipment to turn on.

[0038] Beneficial Effects: The liquid in the storage tank serves as a crucial medium in the cooling system, and its temperature directly impacts the cooling effect. When the fourth detection unit detects that the liquid temperature reaches or exceeds the preset value, the controller activates the refrigeration equipment to cool the liquid. Because, at the same flow rate, a lower-temperature liquid provides better heat dissipation to the heat dissipation components, thus more efficiently reducing the temperature of core components within the engine compartment. If the liquid temperature is too high, its heat dissipation capacity decreases, potentially leading to insufficient cooling. The refrigeration equipment maintains the liquid at a suitable low temperature, ensuring the cooling system functions continuously and stably.

[0039] In one alternative embodiment, the cabin is equipped with a rainwater collector that is connected to the water storage tank. The rainwater collector is used to collect rainwater from outside the cabin and transport the collected rainwater to the water storage tank.

[0040] Beneficial effects: Rainwater harvesters can directly replenish the water tank during rainfall, while dehumidifiers consume energy to process air to generate moisture. When both work together, rainwater harvesting can quickly increase the water level in the tank.

[0041] Secondly, the present invention also provides a wind turbine generator, comprising:

[0042] cabin;

[0043] The wind turbine cooling system includes a dehumidifier located inside the nacelle.

[0044] Beneficial effects: This wind turbine, because it includes a wind turbine cooling system, has the same effects as a wind turbine cooling system, which will not be elaborated here. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the principle of a wind turbine cooling system in one embodiment provided in this application;

[0047] Figure 2 yes Figure 1 Enlarged schematic diagram of the dehumidifier and water tank.

[0048] Explanation of reference numerals in the attached figures:

[0049] 100. Spraying equipment; 110. First spraying section; 120. Second spraying section;

[0050] 200. Water storage tank;

[0051] 300. Dehumidifier; 310. Internal air inlet; 320. External air inlet; 330. Air outlet; 340. Fan;

[0052] 400. Engine compartment; 410. Exhaust valve; 420. Heat dissipation components; 430. Cleaning and fire-fighting equipment;

[0053] 500, humid air;

[0054] 600, dry air;

[0055] 700. First Detection Unit;

[0056] 800, Controller;

[0057] 900. Second detection unit;

[0058] 1000, Third Detection Unit;

[0059] 2000, Filtration device;

[0060] 3000, Fourth Detection Unit;

[0061] 4000. Refrigeration equipment. Detailed Implementation

[0062] In related technologies, water cooling is commonly used to dissipate heat from wind turbine nacelle components, which relies on a stable water supply. Currently, water is mainly obtained by manually transporting it to the nacelle or by using external power sources such as pumps to transfer it to the nacelle. This not only results in high water acquisition costs but is also difficult to operate due to limitations imposed by the nacelle installation environment (especially for offshore models), making it difficult to meet the requirements for long-term stable operation of wind turbines.

[0063] In the development process of this application, in order to reduce the cost of obtaining water for the wind turbine cooling system, the research team initially focused on natural precipitation, a low-cost and readily available resource, and proposed a solution to add a rainwater collector to the wind turbine nacelle: by setting up a water collection structure with a filtration function on the top or side of the nacelle, natural rainfall is directly introduced into the water storage tank, thereby replacing the traditional external tap water supply or manual periodic water replenishment mode.

[0064] For wind turbines deployed in remote mountainous areas, grasslands, or offshore locations far from urban water supply networks, rainwater harvesters eliminate the huge initial investment required for laying long-distance water pipelines and avoid the labor, fuel, and equipment costs associated with long-term reliance on manual water transportation. Especially in rainy regions or seasons, rainwater harvesters can quickly replenish storage tanks with large amounts of water, meeting the basic water needs of the cooling system and significantly reducing dependence on external water sources. This provides an economical and sustainable water solution for the long-term stable operation of remote wind farms.

[0065] However, in actual testing and operational simulations, the R&D team discovered significant limitations in the rainwater harvester. Its water replenishment capacity is highly dependent on weather conditions and exhibits considerable uncertainty. For example, during prolonged droughts or in areas with scarce rainfall, the rainwater harvester's collection volume can drop sharply or even completely cease. In such cases, relying solely on the rainwater harvester is insufficient to maintain an effective water level in the storage tank. Furthermore, the cooling requirements of wind turbines are continuous and stable. If the water level in the storage tank continues to drop, the cooling system faces the risk of failure due to insufficient water supply, potentially leading to overheating, shutdown, or even damage to the equipment.

[0066] Based on this, the inventors of this application have redesigned the wind turbine cooling system by installing a dehumidifier inside the wind turbine nacelle. When the dehumidifier starts operating, it draws in humid air through the internal and / or external air inlets and recovers the moisture from the air into a water storage tank, providing a stable water source for the spray equipment. This eliminates the need for manual handling or external power sources (such as pumps) to supply water, reducing water acquisition costs. Especially for harsh environments such as offshore wind turbines, this design reduces the high costs and operational difficulties associated with manual water supply or external power transmission, solving the problems of environmentally limited and costly water acquisition in existing water cooling methods.

[0067] Meanwhile, the water storage tank continuously recovers moisture from the air through a dehumidifier, ensuring the continuity of water supply for the spraying equipment, avoiding the risk of water outages that may occur in traditional water supply methods, ensuring that the spraying equipment can continuously and effectively dissipate heat, and guaranteeing the long-term stable operation of the wind turbine generator set.

[0068] In addition, after the dehumidifier processes the humid air into dry air, it discharges the dry air into the cabin, which can effectively reduce the humidity of the air inside the cabin to assist in heat dissipation. At the same time, it can prevent core components such as generators and gearboxes inside the cabin from rusting and insulation aging caused by high humidity environment, thereby reducing the probability of equipment failure, extending the service life of components, and reducing the maintenance cost of the unit.

[0069] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0070] The following is combined Figures 1 to 2 The following describes embodiments of the present invention.

[0071] According to embodiments of the present invention, in one aspect, such as Figure 1 and Figure 2 As shown, a wind turbine cooling system is provided, including a spray device 100, a water storage tank 200, and a dehumidifier 300.

[0072] Specifically, such as Figure 1 As shown, the water storage tank 200 is connected to the spraying equipment 100, and the water storage tank 200 provides water to the spraying equipment 100.

[0073] Specifically, such as Figure 1 As shown, the dehumidifier 300 is installed inside the nacelle 400 of the wind turbine generator and is connected to the water storage tank 200. The dehumidifier 300 has an inner air inlet 310, an outer air inlet 320, and an air outlet 330. The inner air inlet 310 is connected to the interior of the nacelle 400, and the outer air inlet 320 is connected to the exterior of the nacelle 400.

[0074] Specifically, such as Figure 1 As shown, the dehumidifier 300 draws in humid air 500 through the inner air inlet 310 and / or the outer air inlet 320, processes the humid air 500 into dry air 600, and then discharges it into the interior of the machine compartment 400 through the air outlet 330. The dehumidifier 300 also transports the water generated during the process to the water storage tank 200.

[0075] This wind turbine cooling system installs a dehumidifier 300 inside the wind turbine nacelle 400. When the dehumidifier 300 starts operating, it draws in humid air 500 through the inner air inlet 310 and / or the outer air inlet 320, and recovers the moisture from the humid air 500 into the water storage tank 200, providing a stable water source for the spray equipment 100. This eliminates the need for manual handling or external power sources (such as pumps) to supply water, reducing water acquisition costs. Especially for harsh environments such as offshore wind turbines, this system reduces the high costs and operational difficulties associated with manual water supply or external power transmission, solving the problems of environmentally limited and costly water acquisition in existing water cooling methods.

[0076] Meanwhile, the water storage tank 200 continuously recovers moisture from the air through the dehumidifier 300, ensuring the continuity of water supply to the spray equipment 100, avoiding the risk of water outages that may occur in traditional water supply methods, ensuring that the spray equipment 100 can continuously and effectively dissipate heat, and ensuring the long-term stable operation of the wind turbine.

[0077] In addition, after the dehumidifier 300 processes the humid air 500 into dry air 600, it discharges the dry air 600 into the machine compartment 400. This can effectively reduce the humidity of the air inside the machine compartment 400 to assist in heat dissipation. At the same time, it can prevent the core components such as the generator and gearbox inside the machine compartment 400 from rusting and insulation aging due to the high humidity environment, thereby reducing the probability of equipment failure, extending the service life of components, and reducing the maintenance cost of the unit.

[0078] Specifically, the spraying device 100 can spray heat to cool the interior of the cabin 400 or the exterior of the cabin 400. In this embodiment, the spraying area of ​​the spraying device 100 is not specifically limited.

[0079] Specifically, the water storage tank 200 can be located in the lower area inside the engine compartment 400, or it can be located on the outer side or platform of the engine compartment 400. In this embodiment, the location of the water storage tank 200 is not specifically limited.

[0080] For example, the water storage tank 200 is installed inside the engine compartment 400, utilizing the unused space at the bottom of the engine compartment 400 to fix the water storage tank 200 to the load-bearing frame. The water storage tank 200 can be installed close to the dehumidifier 300, which can shorten the pipeline connection distance, reduce the energy consumption for water delivery, and facilitate daily inspection and maintenance.

[0081] Specifically, the dehumidifier 300 can draw in humid air 500 from inside the cabin 400 through the inner air inlet 310, or humid air 500 from outside the cabin 400 through the outer air inlet 320, or simultaneously draw in humid air 500 from both inside and outside the cabin 400 through both the inner air inlet 310 and the outer air inlet 320. The specific opening of the inner air inlet 310 and / or the outer air inlet 320 can be adaptively adjusted according to the environment inside or outside the cabin 400.

[0082] In one embodiment, such as Figure 1 As shown, the wind turbine cooling system also includes a first detection unit 700 and a controller 800, wherein the first detection unit 700 is electrically connected to the controller 800. The first detection unit 700 is used to detect the air humidity value inside and / or outside the nacelle 400, and send the detected air humidity value to the controller 800. Based on the received air humidity value, the controller 800 controls the opening and closing state of the inner air inlet 310 and / or the inner air inlet 310.

[0083] The first detection unit 700 detects the humidity inside and outside the cabin 400 in real time and transmits it to the controller 800. The controller 800 precisely controls the opening and closing of the inner air inlet 310 and the outer air inlet 320 based on the air humidity value, so that the dehumidifier 300 draws in humid air 500 from the area with more suitable humidity, avoiding ineffective operation in a low humidity environment, thereby reducing unnecessary energy consumption and realizing energy-saving operation of the system.

[0084] In addition, by monitoring humidity through the first detection unit 700, the controller 800 can dynamically adjust the state of the air inlet to ensure that the dehumidifier 300 always draws in humid air 500 from the high humidity environment, thereby improving the water recovery efficiency and ensuring that the water storage tank 200 can continuously obtain sufficient water supply, providing strong support for the stable water supply of the spray equipment 100.

[0085] Specifically, after the first detection unit 700 feeds back the humidity data to the controller 800, the controller 800 selects the source of the air to be drawn in by adjusting the opening and closing of the air inlet. When the humidity inside the cabin 400 is too high, the air inside the cabin can be drawn in first for dehumidification, effectively reducing the humidity inside the cabin and preventing the components from being damaged due to moisture.

[0086] Specifically, the first detection unit 700 may be a humidity sensor, a temperature and humidity integrated sensor, etc. In this embodiment, the type of the first detection unit 700 is not specifically limited.

[0087] Specifically, the first detection unit 700 can be set inside the cabin 400, outside the cabin 400, or both inside and outside the cabin 400. In this embodiment, the location of the first detection unit 700 is not specifically limited.

[0088] Specifically, the controller 800 can be an existing controller 800 such as a PLC (Programmable Logic Controller 800), a microcontroller 800, or a computer control system. In this embodiment, the type of controller 800 is not specifically limited.

[0089] In one embodiment, such as Figure 1 As shown, when the humidity value of the air inside the cabin 400 received by the controller 800 is greater than or equal to the preset cabin humidity value, the controller 800 controls the inner air inlet 310 to open and the outer air inlet 320 to close.

[0090] By setting a preset humidity value inside the cabin, when the humidity inside the cabin 400 reaches or exceeds the threshold, the controller 800 prioritizes opening the inner air inlet 310 and closing the outer air inlet 320, so that the dehumidifier 300 focuses on processing the humid air 500 inside the cabin 400. This can quickly reduce the humidity inside the cabin and prevent problems such as corrosion and insulation aging of core components such as generators and gearboxes caused by excessive humidity, thereby extending the service life of components and reducing the risk of equipment failure.

[0091] Under this control logic, the dehumidifier 300 only draws in humid air 500 from inside the cabin 400, and can collect and recover the moisture in the air inside the cabin 400 to the water storage tank 200. Since the humidity inside the cabin 400 has reached the threshold requiring intervention, and the moisture content in the air is relatively high, the recovery efficiency is more targeted. It can solve the humidity problem while replenishing the water storage tank 200 with more water, ensuring the water supply stability of the spray equipment 100.

[0092] Specifically, to avoid frequent start-stop cycles (i.e., humidity fluctuations) of the dehumidifier 300 at humidity thresholds, the system can be configured with a "humidity hysteresis loop" (a humidity difference range) for dehumidifier 300 shutdown in the cabin. When the humidity inside the cabin drops below the "cabin humidity value at startup - humidity hysteresis loop value," it indicates that the humidity has stabilized below the threshold requiring intervention. At this point, dehumidifier 300 is shut down and the "start" signal is canceled. For example, if the startup humidity value is 60% and the humidity hysteresis loop value is 5%, the device will shut down when the humidity inside the cabin 400 drops below 55%. By using a "hysteresis shutdown" method, the start-stop losses of dehumidifier 300 are reduced, extending its service life, while ensuring that the humidity inside the cabin 400 remains stable within a safe range.

[0093] Specifically, to prevent overheating and component wear caused by prolonged continuous operation of the dehumidifier 300, the system can set a "maximum continuous operating time for dehumidifier 300 in the cabin 400." When the duration of a single operation reaches or exceeds this threshold, regardless of whether the current humidity inside the cabin 400 meets the standard, the dehumidifier 300 will be forcibly shut down, and a "dehumidifier 300 has been running for too long and is in a sub-healthy state" warning will be issued. By limiting the continuous operating time, the dehumidifier 300 is prevented from being damaged due to fatigue operation, and the "sub-healthy state" alarm prompts maintenance personnel to check for abnormalities, ensuring the long-term stable operation of the system.

[0094] In one embodiment, such as Figure 1 As shown, when the humidity value of the air outside the cabin 400 received by the controller 800 is greater than or equal to the preset cabin humidity value, the controller 800 controls the external air inlet 320 to open and the internal air inlet 310 to close.

[0095] When the humidity of the air outside the cabin 400 reaches or exceeds the preset outside humidity value, the controller 800 controls the external air inlet 320 to open and the internal air inlet 310 to close, so that the dehumidifier 300 focuses on processing the humid air 500 outside the cabin. Because the humidity of the air outside the cabin 400 is high, it contains more moisture. The dehumidifier 300 can efficiently recover moisture to the water storage tank 200 during this process, replenishing more water for the cooling system. Especially when the humidity inside the cabin does not exceed the standard, it avoids unnecessary processing of the air inside the cabin, making moisture recovery more targeted and efficient.

[0096] When the humidity outside the cabin 400 meets the standard and the humidity inside the cabin 400 is within the normal range, by closing the inner air inlet 310 and opening the outer air inlet 320, the dehumidifier 300 only processes the air outside the cabin. It will not change the original suitable humidity environment inside the cabin 400 by drawing in the air inside the cabin. This can avoid unnecessary disturbance to the cabin environment caused by the dehumidifier 300, ensure that the humidity inside the cabin 400 is stable within a safe range, provide a stable operating environment for core components, and reduce the equipment impact that may be caused by the humidity fluctuation inside the cabin 400.

[0097] In one embodiment, such as Figure 1 As shown, the wind turbine cooling system also includes a second detection unit 900, which is electrically connected to the controller 800. The second detection unit 900 is used to detect the air temperature inside the nacelle 400 and send the detected air temperature value to the controller 800. When the air temperature value received by the controller 800 is greater than or equal to a preset temperature value, the controller 800 controls the external air inlet 320 to open and the internal air inlet 310 to close.

[0098] When the internal temperature of the engine compartment 400 exceeds the preset value, the controller 800 opens the external air inlet 320 and closes the internal air inlet 310, allowing the dehumidifier 300 to draw in relatively cool air from outside the compartment. After being processed by the dehumidifier 300 (becoming dry, cool air), the cool air from outside the engine compartment 400 is discharged into the engine compartment 400, directly lowering the ambient temperature inside the engine compartment 400 and assisting the spray system in dissipating heat from core components. Especially under high-temperature conditions (such as in summer or during full-load operation), the introduction of cool external air can quickly remove heat, improve the overall cooling effect, and prevent equipment from becoming inefficient or damaged due to overheating.

[0099] The temperature data from the second detection unit 900 complements the humidity data from the first detection unit 700, enabling the controller 800 to dynamically adjust the air intake strategy based on the overall temperature and humidity conditions inside the engine compartment 400. For example, when the temperature inside the engine compartment 400 is high but the humidity is within acceptable limits, the system can still cool down the engine by introducing cool external air without waiting for the humidity to exceed the limit before activating the external air circulation (opening the external air intake 320 and closing the internal air intake 310). This further enhances the flexibility and intelligence of the system response, ensuring that the engine compartment 400 can be provided with a superior temperature and humidity environment under various operating conditions.

[0100] Specifically, if the internal air circulation is maintained when the temperature inside the cabin 400 is too high (with the internal air inlet 310 open and the external air inlet 320 closed), the hot and humid air will be repeatedly processed by the dehumidifier 300, which may lead to excessive load on the dehumidifier 300 and make it difficult to effectively reduce the temperature inside the cabin 400. By switching to external air circulation and introducing cool external air, the cabin temperature can be reduced, the working pressure of the dehumidifier 300 in high-temperature environments can be reduced, and the service life of the equipment can be extended.

[0101] Specifically, the second detection unit 900 may be a thermocouple temperature sensor, a resistance temperature sensor, an infrared temperature sensor, etc. In this embodiment, the type of the second detection unit 900 is not specifically limited.

[0102] In one embodiment, such as Figure 1 and Figure 2As shown, the wind turbine cooling system also includes a third detection unit 1000, which is electrically connected to the controller 800. The third detection unit 1000 is used to detect the liquid level in the water storage tank 200 and send the detected liquid level value to the controller 800. When the liquid level value received by the controller 800 is less than or equal to a preset liquid level value, the controller 800 controls the external air inlet 320 to open and the internal air inlet 310 to close.

[0103] When the water level in the storage tank 200 falls below the preset level, the system automatically switches to external circulation mode (opening the external air inlet 320 and closing the internal air inlet 310), utilizing the high humidity of the air outside the engine room 400 to generate water. Since the external air humidity in nature (especially at sea or in humid regions) is usually higher than that inside the engine room 400, this operation efficiently recovers moisture, quickly replenishes the water tank, prevents the spray equipment 100 from shutting down due to insufficient water supply, and ensures the continuous operation of the cooling system.

[0104] Under extreme conditions such as high temperature and drought or long-term continuous operation, water evaporates quickly inside the engine compartment at 400°C, while the external humidity may be low. In such cases, the system actively switches to external circulation by detecting the liquid level. Even if the external humidity is only slightly higher than the preset value, the system can still gradually replenish the water source by extending the operating time, ensuring the reliability of the system under harsh conditions.

[0105] Specifically, relying solely on the internal circulating water supply in engine compartment 400 could lead to excessively low humidity within the compartment, exacerbating the risk of equipment drying and aging. By prioritizing the use of external water sources, the humidity within engine compartment 400 can be maintained within a reasonable range while replenishing the water storage tank 200, thus meeting cooling requirements while protecting the environment of engine compartment 400.

[0106] Specifically, the third detection unit 1000 can be a float-type liquid level sensor, an ultrasonic liquid level sensor, a capacitive liquid level sensor, etc. In this embodiment, the type of the third detection unit 1000 is not specifically limited.

[0107] For example, the third detection unit 1000 takes a float-type liquid level sensor as an example. The float is driven to rise and fall with the liquid level by the buoyancy of the liquid level. The float is linked to a mechanical structure or magnetic control switch to convert the liquid level height into an electrical signal. It is suitable for detecting the upper and lower limits of the liquid level in the water storage tank 200. It is easy to install and maintain.

[0108] In one embodiment, such as Figure 1 and Figure 2 As shown, the wind turbine cooling system also includes a filter device 2000, which is connected to the dehumidifier 300 and the water storage tank 200 respectively. The water generated by the dehumidifier 300 is filtered by the filter device 2000 and then transported to the water storage tank 200.

[0109] The moisture generated by the dehumidifier 300 may contain impurities from the air, such as dust, sand, and salt spray particles from outside the cabin 400, or metal shavings and oil stains generated by the operation of equipment inside the cabin 400. The filter device 2000 can effectively intercept these impurities, preventing them from entering the water storage tank 200 and clogging the spray pipes and nozzles or adhering to the surface of cooling components. This ensures the smoothness of the subsequent cooling process and reduces the risk of equipment failure due to blockage. Furthermore, clean water reduces the accumulation of dirt inside the water storage tank 200, reducing the frequency of manual cleaning; it also reduces the need for pipe dredging and component repairs caused by impurities, indirectly lowering the system's operation and maintenance costs.

[0110] If impurities deposit on the surface of cooling components (such as generator fins), they will form a heat insulation layer, reducing heat dissipation efficiency. Filtered water remains clean during spraying or circulation, ensuring effective heat exchange between the cooling medium and the equipment surface, maintaining stable cooling system efficiency, and preventing equipment overheating due to insufficient heat dissipation.

[0111] Specifically, the filter device 2000 can be connected to the dehumidifier 300 and the water storage tank 200 through a pipeline, or the filter device 2000 can be integrated into the dehumidifier 300 or the water storage tank 200. In this embodiment, no specific restrictions are placed on the connection method between the filter device 2000 and the dehumidifier 300 and the water storage tank 200.

[0112] Specifically, the filter device 2000 can be a mechanical filter, a chemical filter, etc. In this embodiment, the type of filter device 2000 is not specifically limited.

[0113] In one embodiment, such as Figure 1 and Figure 2 As shown, the dehumidifier 300 is equipped with a fan 340, which is used to draw humid air 500 into the dehumidifier 300 through the inner air inlet 310 and / or the outer air inlet 320.

[0114] By incorporating a fan 340 within the dehumidifier 300, which acts as an active air intake power source, the fan 340 accelerates the flow rate and intake volume of humid air 500. Whether air is drawn in from inside or outside the chamber 400, the forced airflow of the fan 340 allows more humid air 500 to quickly enter the processing chamber of the dehumidifier 300, improving the efficiency of moisture condensation or adsorption. This results in faster generation of recyclable water, replenishing the water tank 200 with more water.

[0115] In one embodiment, such as Figure 1As shown, an exhaust valve 410 is provided on the nacelle 400. The exhaust valve 410 is electrically connected to the controller 800, and the interior of the nacelle 400 is connected to the exterior of the nacelle 400 via the exhaust valve 410. Under normal circumstances, the exhaust valve 410 is in a normally closed state. When the external air inlet 320 is opened and the internal air inlet 310 is closed, the controller 800 controls the exhaust valve 410 to open.

[0116] When the external air inlet 320 is open and the internal air inlet 310 is closed, the exhaust valve 410 opens simultaneously, forming an airflow channel with the external air inlet 320. High-humidity air outside the engine compartment 400 enters the engine compartment 400 after being processed by the dehumidifier 300. At the same time, the original hot and humid air inside the engine compartment 400 is discharged through the exhaust valve 410, which can accelerate the discharge of heat load and moisture inside the engine compartment 400. It can reduce the temperature and humidity inside the engine compartment 400 more efficiently than natural diffusion, and significantly improve the cooling effect, especially under high temperature and high humidity conditions.

[0117] If only the external air intake 320 is opened without the exhaust valve 410 being activated, the continuous intake of outside air will cause the pressure inside the engine compartment 400 to rise, potentially damaging the sealing structure of the engine compartment 400 and even causing rainwater backflow or dust intrusion. The synchronous opening of the exhaust valve 410 keeps the pressure inside and outside the engine compartment 400 balanced, maintains the integrity of the seal, and extends the equipment's lifespan.

[0118] In one embodiment, such as Figure 1 As shown, the spraying device 100 includes a first spraying section 110 and a second spraying section 120. The first spraying section 110 is installed inside the engine compartment 400 and is used to spray and cool the heat dissipation components 420 inside the engine compartment 400. The second spraying section 120 is installed outside the engine compartment 400 and is used to spray and cool the heat dissipation components 420 outside the engine compartment 400.

[0119] The heat dissipation components 420 inside the cabin 400 are in a relatively enclosed environment, where heat is easily accumulated and high cooling precision is required. The first spray section 110 can spray them in a targeted manner to quickly remove local heat. The heat dissipation components 420 outside the cabin 400 are exposed to the external environment and are greatly affected by the environment. The second spray section 120 sprays the external heat dissipation components 420 to accelerate the cooling and heat dissipation of the external heat dissipation components 420.

[0120] Since the first spray unit 110 and the second spray unit 120 can operate independently, when only the heat dissipation components 420 inside or outside the engine compartment 400 need cooling, the corresponding spray unit can be turned on individually without starting the entire system. For example, when the external ambient temperature is low and only internal components generate a lot of heat due to operation, only the first spray unit 110 needs to be turned on, avoiding energy waste caused by starting the entire system. This effectively reduces the system's operating energy consumption while ensuring the cooling effect.

[0121] In one embodiment, such as Figure 1 As shown, the wind turbine cooling system also includes a cleaning and fire-fighting device 430, which is installed inside the nacelle 400 and is connected to the water storage tank 200.

[0122] The cleaning and fire-fighting equipment 430 is connected to the water storage tank 200, and the water in the water storage tank 200 that has been recovered and filtered by the dehumidifier 300 can be used directly as a water source. There is no need to lay an independent water supply pipe or rely on an external water source, which realizes the reuse of water resources in multiple scenarios and makes fuller use of the resources in the system.

[0123] The cleaning and fire-fighting equipment 430 and the water storage tank 200 share a single water supply system, eliminating the need for a separate fire-fighting water tank or cleaning water storage device. This simplifies the overall structure of the wind turbine cooling system, reducing equipment installation space and initial investment costs. Furthermore, unified water supply management reduces the difficulty of later maintenance; only the water storage tank 200 and related connecting pipes need maintenance to ensure the normal operation of the cleaning and fire-fighting functions.

[0124] Specifically, the cleaning function can clean the equipment surfaces and floors inside the engine room 400 regularly or as needed, reducing the impact of dust, oil, and other impurities on equipment heat dissipation and operation; while the fire-fighting function can quickly use the water in the water tank 200 to extinguish fires in case of emergencies such as fires in the engine room 400, control the danger in time, and prevent the fire from spreading and causing greater losses, providing double protection for the safety of the engine room 400.

[0125] In one embodiment, such as Figure 1 and Figure 2 As shown, the wind turbine cooling system also includes a fourth detection unit 3000 and a refrigeration device 4000, both of which are electrically connected to the controller 800. The fourth detection unit 3000 detects the liquid temperature in the water storage tank 200 and sends the detected temperature value to the controller 800. The refrigeration device 4000 is installed inside the water storage tank 200 and is used to cool the liquid in the tank. When the liquid temperature value received by the controller 800 is greater than or equal to a preset liquid temperature value, the controller 800 controls the refrigeration device 4000 to turn on.

[0126] The liquid in the water tank 200 serves as a crucial medium in the cooling system, and its temperature directly impacts the cooling effect. When the fourth detection unit 3000 detects that the liquid temperature reaches or exceeds a preset value, the controller 800 activates the refrigeration unit 4000 to cool the liquid. Because, at the same flow rate, a lower-temperature liquid provides better heat dissipation to the heat dissipation components 420, thus more efficiently reducing the temperature of the core components within the engine compartment 400. If the liquid temperature is too high, its heat dissipation capacity decreases, potentially leading to insufficient cooling. The refrigeration unit 4000 maintains the liquid at a suitable low temperature, ensuring the cooling system functions continuously and stably.

[0127] After the liquid temperature in the water storage tank 200 decreases, it can better exchange heat with the high-temperature components in the engine compartment 400 when it enters the engine compartment 400 through the spray equipment 100, etc. In conjunction with other cooling links such as the dehumidifier 300 and the intake and exhaust system, the overall cooling efficiency is further improved.

[0128] For example, the cryogenic liquid can remove heat from the surface of the heat dissipation component 420 more quickly after being sprayed, while also helping to reduce the air temperature inside the cabin 400, reduce the operating load of other cooling equipment, and optimize the overall energy consumption of the system.

[0129] Specifically, the fourth detection unit 3000 monitors the liquid temperature in real time, and the refrigeration unit 4000 only turns on when the temperature reaches the preset value, thus avoiding ineffective operation of the refrigeration unit 4000. Based on precise control of the actual temperature, the operation of the refrigeration unit 4000 can be adjusted according to the real-time state of the liquid, ensuring that the liquid is always within the optimal cooling temperature range without consuming extra energy due to over-cooling, thereby improving the economic efficiency of system operation.

[0130] Specifically, the fourth detection unit 3000 may be a thermocouple temperature sensor, a resistance temperature sensor, etc. In this embodiment, the type of the fourth detection unit 3000 is not specifically limited.

[0131] Specifically, the refrigeration device 4000 may be a semiconductor refrigeration chip assembly, a vortex tube refrigeration device, etc. In this embodiment, the type of refrigeration device 4000 is not specifically limited.

[0132] In one embodiment, a rainwater collector (not shown) is provided on the cabin 400, and the rainwater collector is connected to the water storage tank 200. The rainwater collector is used to collect rainwater outside the cabin 400 and transport the collected rainwater to the water storage tank 200.

[0133] The rainwater harvester can directly replenish the water tank 200 with water during rainfall, while the dehumidifier 300 consumes energy to process air to generate moisture. When the two work together, the rainwater harvester can quickly raise the water level in the water tank 200.

[0134] Specifically, the rainwater collector may be a deflector or collection pipe installed on the top of the cabin 400. In this embodiment, the structure of the rainwater collector is not specifically limited.

[0135] According to an embodiment of the present invention, on the other hand, such as Figure 1 and Figure 2 As shown, a wind turbine is also provided, including a nacelle 400 and a wind turbine cooling system.

[0136] Specifically, such as Figure 1 As shown, the dehumidifier 300 is installed inside the cabin 400.

[0137] This wind turbine, since it includes a wind turbine cooling system, has the same effect as a wind turbine cooling system, and will not be described in detail here.

[0138] The terms "upper" and "lower" are used to describe the relative positions of the various structures in the accompanying drawings. They are only for clarity of description and are not intended to limit the scope of implementation of this application. Any changes or adjustments to the relative positions without substantially altering the technical content shall also be considered within the scope of implementation of this application.

[0139] It should be noted that, in this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0140] Furthermore, in this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0141] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0142] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A wind turbine cooling system, characterized in that, include: Spraying equipment (100); A water storage tank (200) is connected to the spraying equipment (100), and the water storage tank (200) is used to supply water to the spraying equipment (100); A dehumidifier (300) is installed inside the nacelle (400) of a wind turbine generator and is connected to the water storage tank (200). The dehumidifier (300) has an inner air inlet (310), an outer air inlet (320), and an air outlet (330). The inner air inlet (310) is connected to the inside of the nacelle (400), and the outer air inlet (320) is connected to the outside of the nacelle (400). The dehumidifier (300) draws in humid air (500) through the inner air inlet (310) and / or the outer air inlet (320), processes the humid air (500) into dry air (600), and discharges it into the inside of the nacelle (400) through the air outlet (330). The dehumidifier (300) also transports the water generated during the dehumidification process to the water storage tank (200).

2. The wind turbine cooling system according to claim 1, characterized in that, The wind turbine cooling system further includes a first detection unit (700) and a controller (800). The first detection unit (700) is electrically connected to the controller (800). The first detection unit (700) is used to detect the air humidity value inside the nacelle (400) and / or outside the nacelle (400) and send it to the controller (800). The controller (800) controls the opening and closing state of the inner air inlet (310) and / or the inner air inlet (310) based on the received air humidity value.

3. The wind turbine cooling system according to claim 2, characterized in that, When the controller (800) receives an air humidity value inside the cabin (400) that is greater than or equal to a preset cabin humidity value, the controller (800) controls the inner air inlet (310) to open and controls the outer air inlet (320) to close.

4. The wind turbine cooling system according to claim 2, characterized in that, When the controller (800) receives an air humidity value outside the cabin (400) that is greater than or equal to a preset cabin humidity value, the controller (800) controls the external air inlet (320) to open and controls the internal air inlet (310) to close.

5. The wind turbine cooling system according to claim 2, characterized in that, The wind turbine cooling system also includes a second detection unit (900), which is electrically connected to the controller (800). The second detection unit (900) is used to detect the air temperature value inside the nacelle (400) and send it to the controller (800). When the air temperature value received by the controller (800) is greater than or equal to the preset temperature value, the controller (800) controls the external air inlet (320) to open and controls the internal air inlet (310) to close.

6. The wind turbine cooling system according to claim 2, characterized in that, The wind turbine cooling system also includes a third detection unit (1000), which is electrically connected to the controller (800). The third detection unit (1000) is used to detect the liquid level in the water storage tank (200) and send it to the controller (800). When the liquid level height value received by the controller (800) is less than or equal to the preset liquid level value, the controller (800) controls the external air inlet (320) to open and controls the internal air inlet (310) to close.

7. The wind turbine cooling system according to any one of claims 1 to 6, characterized in that, The wind turbine cooling system also includes a filter device (2000), which is connected to the dehumidifier (300) and the water storage tank (200) respectively. The water generated by the dehumidifier (300) is filtered by the filter device (2000) and then transported to the water storage tank (200).

8. The wind turbine cooling system according to any one of claims 1 to 6, characterized in that, The dehumidifier (300) is equipped with a fan (340), which is used to draw humid air (500) into the dehumidifier (300) through the inner air inlet (310) and / or the outer air inlet (320).

9. The wind turbine cooling system according to any one of claims 4 to 6, characterized in that, The engine room (400) is provided with an exhaust valve (410) electrically connected to the controller (800), and the interior of the engine room (400) is connected to the exterior of the engine room (400) through the exhaust valve (410); The exhaust valve (410) is normally closed. When the external air inlet (320) is open and the internal air inlet (310) is closed, the controller (800) controls the exhaust valve (410) to open.

10. The wind turbine cooling system according to any one of claims 1 to 6, characterized in that, The spraying device (100) includes a first spraying section (110) and a second spraying section (120). The first spraying section (110) is located inside the engine compartment (400) and is used to spray the heat dissipation components (420) inside the engine compartment (400). The second spraying section (120) is located outside the engine compartment (400) and is used to spray the heat dissipation components (420) outside the engine compartment (400).

11. The wind turbine cooling system according to claim 10, characterized in that, The wind turbine cooling system also includes a cleaning and fire-fighting device (430), which is located inside the nacelle (400) and connected to the water storage tank (200).

12. The wind turbine cooling system according to any one of claims 1 to 6, characterized in that, The wind turbine cooling system further includes a fourth detection unit (3000) and a refrigeration device (4000). Both the fourth detection unit (3000) and the refrigeration device (4000) are electrically connected to the controller (800). The fourth detection unit (3000) is used to detect the liquid temperature value in the water storage tank (200) and send it to the controller (800). The refrigeration device (4000) is located in the water storage tank (200) and is used to cool the liquid in the water storage tank (200). When the liquid temperature value received by the controller (800) is greater than or equal to the preset liquid temperature value, the controller (800) controls the refrigeration equipment (4000) to turn on.

13. The wind turbine cooling system according to any one of claims 1 to 6, characterized in that, The cabin (400) is equipped with a rainwater collector, which is connected to the water storage tank (200). The rainwater collector is used to collect rainwater outside the cabin (400) and transport the collected rainwater to the water storage tank (200).

14. A wind turbine generator, characterized in that, include: Cabin (400); The wind turbine cooling system according to any one of claims 1 to 13, wherein the dehumidifier (300) is disposed within the nacelle (400).

Images