Heat dissipation system applied to wind power generation structure

Abstract

The invention provides a heat dissipation system applied to a wind power generation structure, and relates to the technical field of wind power generation. The system comprises a control cabinet, a first installation space, a second installation space and a third installation space are arranged in the control cabinet and used for installing a main controller and a safety chain logic module respectively, an air outlet is formed in the third installation space, and ventilation shutters are installed on an air inlet and the air outlet; the heat dissipation assembly comprises a heat dissipation fan set, a main air duct, a first branch air duct and a second branch air duct, the main air duct communicates with the first installation space and the third installation space, the second branch air duct communicates with the second installation space and the main air duct to form a T-shaped air duct, and an air duct switching device is arranged at the T-shaped air duct; a plurality of temperature sensors; the system comprises a central control unit, a cooling fan control module, a ventilation shutter control module, an air duct switching device control module and a state monitoring sensor. According to the heat dissipation system, partitioned independent heat dissipation, intelligent air duct switching and multi-dimensional sensing control are combined, accurate temperature adjustment and energy conservation can be achieved, and stable operation of the unit is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and more particularly, to a heat dissipation system applied to a wind power generation structure. Background Art

[0002] A wind power generation structure is a complex device that converts wind energy into electrical energy, mainly composed of parts such as a wind turbine, a nacelle, and a tower. The wind turbine rotates under the drive of wind force, and then drives the generator to operate to generate electrical energy. Various control devices and transmission devices are equipped inside the nacelle, which are used to adjust the operating state of the wind turbine and transmit the generated electrical energy. The tower provides support for the entire unit, enabling the unit to obtain stable wind energy at an appropriate height and ensuring the continuous and efficient operation of the wind power generation process. The bottom control cabinet of the tower, as a key device of the wind power generation unit, is installed at the bottom of the tower and plays a crucial role in the entire power generation system.

[0003] A large number of electrical components are integrated inside the bottom control cabinet of the tower. It is not only responsible for monitoring and controlling the operating state of the unit, realizing communication with the remote control center, but also capable of processing and analyzing various data to centrally control and protect the electrical system, ensuring the stable and safe operation of the wind power generation system. However, during the operation of the bottom control cabinet of the tower, a large amount of heat is generated when the main controller and the safety chain logic module are working. Since these electrical components have been operating under the condition of exceeding the rated temperature for a long time, the traditional heat dissipation method of simply installing a heat dissipation fan has exposed obvious drawbacks. The existing heat dissipation solutions are difficult to accurately adjust the heat dissipation intensity and cannot make timely and appropriate adjustments according to the real-time heat generation characteristics of the components and environmental changes.

[0004] The deficiency of this heat dissipation method makes the temperature inside the bottom control cabinet of the tower unable to be effectively controlled, thereby affecting the normal operation of electrical components such as the main controller and the safety chain logic module. This will not only lead to frequent failures of the wind power generation unit, increase the operation and maintenance costs, but also reduce the power generation efficiency, causing serious impacts on the stable operation of the entire wind power generation system. Summary of the Invention

[0005] An object of the present invention is to provide a heat dissipation system applied to a wind power generation structure, aiming to solve the technical problems in the above-mentioned background art.

[0006] The embodiments of the present invention are implemented as follows:

[0007] An embodiment of the present application provides a heat dissipation system applied to a wind power generation structure, including: a control cabinet, inside which there are independently arranged a first installation space, a second installation space, and a third installation space. The first installation space is used to install a main controller, the second installation space is used to install a safety chain logic module. Both the first installation space and the second installation space are provided with air inlets, and the third installation space is provided with an air outlet to communicate with the external space of the control cabinet. The air outlet and the two air inlets are both provided with ventilation louvers; a heat dissipation component, including a heat dissipation fan group, a main air duct, a first branch air duct, and a second branch air duct. The two ends of the main air duct are respectively communicated with the first installation space and the third installation space. The two ends of the first branch air duct are respectively communicated with the second installation space and the main air duct. The two ends of the second branch air duct are respectively communicated with the second installation space and the main air duct, and the connection point of the second branch air duct and the main air duct is located between the first branch air duct and the first installation space. The second branch air duct and the main air duct form a T-shaped air duct, and a duct switching device is arranged at the T-shaped air duct; wherein, the heat dissipation fan group includes a first heat dissipation fan and the second heat dissipation fan, and they are respectively arranged in the first installation space and the second installation space; a plurality of temperature sensors are used to be respectively arranged at the main controller, the safety chain logic module, the main air duct and the first installation space, and at the second branch air duct; and a control component arranged in the third installation space, including a central control unit, a heat dissipation fan control module, a ventilation louver control module, a duct switching device control module, and a status monitoring sensor.

[0008] Further, based on the foregoing solution, it further includes a refrigeration device and a refrigeration device control module, and the refrigeration device is arranged in both the first installation space and the second installation space.

[0009] Further, based on the foregoing solution, the first heat dissipation fan and the second heat dissipation fan are both provided with power-off delay relays.

[0010] Further, based on the foregoing solution, it further includes a wireless communication module communicatively connected to the central control unit, and the wireless communication module is externally connected to an operation and maintenance terminal through a remote monitoring center.

[0011] Further, based on the foregoing solution, it further includes an alarm module electrically connected to the central control unit.

[0012] Further, based on the foregoing solution, it further includes a fault diagnosis module, a cleaning structure, and spare sensors. The cleaning structure is used for cleaning the heat dissipation fan group, and the spare sensors are used for standby replacement when the temperature sensors fail;

[0013] Among them, the above-mentioned fault diagnosis module is used to obtain the operating states of the cooling fan, the refrigeration device and the temperature sensor, and compare them with the preset standard operating data and the fault feature library of the above-mentioned fault diagnosis module to determine the fault type and location, so as to start the above-mentioned cleaning structure or / and the above-mentioned spare sensor to work.

[0014] Further, based on the foregoing solution, a barometric pressure sensor and a humidity sensor are both arranged inside the above-mentioned first installation space and the above-mentioned second installation space.

[0015] Further, based on the foregoing solution, a composite graphene-paraffin phase change material layer is arranged on the surfaces of the above-mentioned main controller and the above-mentioned safety chain logic module.

[0016] Further, based on the foregoing solution, the numbers of the above-mentioned first cooling fan and the above-mentioned second cooling fan are both multiple.

[0017] Further, based on the foregoing solution, filter sponges are arranged at the air inlets of the above-mentioned first installation space and the above-mentioned second installation space.

[0018] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0019] The heat dissipation system of this application divides the interior of the control cabinet at the tower bottom into independent first, second, and third installation spaces, which respectively correspond to installing the main controller, the safety chain logic module, and setting exhaust vents, thus constructing a physical architecture for partitioned heat dissipation. The ventilation louvers at the air inlet and outlet can adjust the air flow. The heat dissipation components form a T-shaped air duct structure through the layout of the main air duct, the first branch air duct, and the second branch air duct, and a duct switching device is set at the intersection. Combined with the active air supply of the first and second cooling fans in the corresponding installation spaces, the directional guidance and flexible distribution of the air flow are realized. Multiple temperature sensors distributed at key positions of the main controller, the safety chain logic module, and the air duct collect temperature data in real time and transmit it to the central control unit of the control component. The central control unit, through the cooling fan control module, the ventilation louver control module, and the duct switching device control module, dynamically adjusts the fan speed, the opening and closing angle of the louvers, and the state of the duct switching device according to the temperature data, so as to accurately control the heat dissipation intensity of each area. The advantages of this solution are as follows: The configuration of partitioned independent installation spaces and dedicated cooling fans realizes targeted heat dissipation for key components such as the main controller and the safety chain logic module, avoiding the blindness of unified heat dissipation in the traditional solution; The design of the T-shaped air duct and the duct switching device enables the air flow from the first installation space to be preferentially supplied to the high-temperature area (the second installation space or the third installation space) by switching the air duct flow direction according to the real-time temperature data, solving the problem that the existing solution cannot adapt to the real-time heat generation characteristics of components and environmental changes; The intelligent linkage between the multi-dimensional temperature sensors and the central control unit realizes the dynamic and accurate adjustment of the heat dissipation intensity, improving the control accuracy and response ability of the heat dissipation system; The adjustment of the inlet and exhaust air volumes by the ventilation louvers, combined with the optimization of the air duct structure, helps to reduce the energy consumption of the heat dissipation system itself while ensuring the heat dissipation effect, enhancing the energy utilization efficiency, and effectively solving the deficiencies of the traditional heat dissipation method from both the structural design and intelligent control aspects, ensuring the safe and stable operation of the unit. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a structural block diagram of a heat dissipation system applied to a wind power generation structure according to an embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a heat dissipation system applied to a wind power generation structure according to an embodiment of the present invention.

[0023] Icon: 1 - control cabinet, 101 - first installation space, 102 - second installation space, 103 - third installation space, 2 - refrigeration equipment, 3 - first cooling fan, 4 - second cooling fan, 5 - air pressure sensor, 6 - temperature sensor, 7 - humidity sensor, 8 - main controller, 9 - main air duct, 10 - first branch air duct, 11 - second branch air duct, 12 - safety chain logic module, 13 - central control unit, 14 - fault diagnosis module, 15 - ventilation louvers, 16 - air duct switching device. Detailed implementation

[0024] The embodiments of the present application will be described in detail below with reference to the accompanying drawings in the embodiments of the present application.

[0025] Embodiment

[0026] Please refer to Figure 1 and Figure 2 , the embodiment of the present application provides a heat dissipation system applied to a wind power generation structure, including: a control cabinet 1, inside which there are mutually independent first installation space 101, second installation space 102 and third installation space 103. The above-mentioned first installation space 101 is used to install the main controller 8, the above-mentioned second installation space 102 is used to install the safety chain logic module 12. The above-mentioned first installation space 101 and the above-mentioned second installation space 102 are both provided with air inlets, and the above-mentioned third installation space 103 is provided with an air outlet to communicate with the external space of the above-mentioned control cabinet 1. The above-mentioned air outlet and the two above-mentioned air inlets are both provided with ventilation louvers 15; a heat dissipation component, including a heat dissipation fan group, a main air duct 9, a first branch air duct 10 and a second branch air duct 11. The two ends of the above-mentioned main air duct 9 are respectively communicated with the above-mentioned first installation space 101 and the third installation space 103. The two ends of the above-mentioned first branch air duct 10 are respectively communicated with the above-mentioned second installation space 102 and the above-mentioned main air duct 9. The two ends of the above-mentioned second branch air duct 11 are respectively communicated with the above-mentioned second installation space 102 and the above-mentioned main air duct 9, and the connection point of the above-mentioned second branch air duct 11 and the above-mentioned main air duct 9 is located between the above-mentioned first branch air duct 10 and the above-mentioned first installation space 101. The above-mentioned second branch air duct 11 and the above-mentioned main air duct 9 form a T-shaped air duct, and an air duct switching device 16 is provided at the above-mentioned T-shaped air duct; among them, the above-mentioned heat dissipation fan group includes a first cooling fan 3 and the above-mentioned second cooling fan 4, and they are respectively arranged in the above-mentioned first installation space 101 and the above-mentioned second installation space 102; a plurality of temperature sensors 6, which are respectively arranged at the above-mentioned main controller 8, the above-mentioned safety chain logic module 12, the above-mentioned main air duct 9 and the above-mentioned first installation space 101, and the above-mentioned second branch air duct 11; and a control component arranged in the above-mentioned third installation space 103, including a central control unit 13, a heat dissipation fan control module, a ventilation louver control module, an air duct switching device control module and a status monitoring sensor.

[0027] The heat dissipation system of this application divides the interior of the control cabinet 1 at the tower bottom into independent first, second, and third installation spaces 103, which respectively correspond to installing the main controller 8, the safety chain logic module 12, and setting air exhaust ports, thus constructing a physical architecture for partitioned heat dissipation. The ventilation louvers 15 at the air inlet and air exhaust ports can adjust the air flow. The heat dissipation components form a T-shaped air duct structure through the layout of the main air duct 9, the first branch air duct 10, and the second branch air duct 11, and a duct switching device 16 is set at the intersection. Combined with the active air supply of the first and second cooling fans 4 in the corresponding installation spaces, the directional guidance and flexible distribution of air flow are realized. A plurality of temperature sensors 6 distributed at key positions of the main controller 8, the safety chain logic module 12, and the air duct collect temperature data in real time and transmit it to the central control unit 13 of the control component. The central control unit 13, through the cooling fan control module, the ventilation louver control module, and the duct switching device control module, dynamically adjusts the fan speed, the opening angle of the louvers, and the state of the duct switching device 16 according to the temperature data, so as to accurately control the heat dissipation intensity of each area. The advantages of this solution are as follows: the configuration of partitioned independent installation spaces and dedicated cooling fans realizes targeted heat dissipation for key components such as the main controller 8 and the safety chain logic module 12, avoiding the blindness of unified heat dissipation in the traditional solution; the design of the T-shaped air duct and the duct switching device 16 enables the air flow from the first installation space 101 to be preferentially supplied to the high-temperature area (the second installation space 102 or the third installation space 103) by switching the air duct flow direction according to the real-time temperature data, solving the problem that the existing solution cannot adapt to the real-time heat generation characteristics of components and environmental changes; the intelligent linkage between the multi-dimensional temperature sensor 6 and the central control unit 13 realizes the dynamic and accurate adjustment of the heat dissipation intensity, improving the control accuracy and response ability of the heat dissipation system; the adjustment of the air intake and exhaust volume by the ventilation louvers 15, combined with the optimization of the air duct structure, helps to reduce the energy consumption of the heat dissipation system itself while ensuring the heat dissipation effect, enhancing the energy utilization efficiency, effectively solving the deficiencies of the traditional heat dissipation method from both the structural design and intelligent control aspects, and ensuring the safe and stable operation of the unit.

[0028] As a preferred implementation manner, it further includes a refrigeration device 2 and a refrigeration device 2 control module, and the above-mentioned refrigeration device 2 is provided in both the above-mentioned first installation space 101 and the above-mentioned second installation space 102.

[0029] In the above embodiments, by respectively configuring the refrigeration device 2 in the first and second installation spaces 102 where the main controller 8 and the safety chain logic module 12 are located, active refrigeration and cooling can be provided for these two types of high-heat-generating electrical components, making up for the deficiency of relying solely on the cooling fan for air convection heat dissipation. Especially when the ambient temperature is relatively high or the component load suddenly increases, resulting in a rapid increase in the local temperature, the refrigeration device 2 can directly reduce the temperature on the surface and around the components, ensuring their stable operation within the rated temperature range. The control module of the refrigeration device 2 is linked with the central control unit 13, and the operating power of the refrigeration device 2 can be accurately adjusted according to the real-time data of the temperature sensors 6 distributed in each installation space and the air duct: when it is detected that the temperature approaches or exceeds the preset threshold, the refrigeration device 2 is automatically started and adjusted to an appropriate power, forming a dual heat dissipation mechanism of "active refrigeration + forced convection" with the cooling fan; when the temperature drops back to the safe range, the refrigeration device 2 is gradually reduced or turned off to avoid energy waste. This design not only enhances the adaptability of the heat dissipation system under extreme working conditions and solves the problem of rough adjustment of the heat dissipation intensity in the traditional solution, but also improves the control accuracy of the temperature of key components through combined heat and cold dissipation, effectively reducing the risks of component aging and failure caused by long-term over-temperature operation, further improving the operating reliability and service life of the wind turbine generator set. At the same time, energy consumption optimization is achieved through intelligent control, taking into account both the heat dissipation effect and the energy utilization efficiency.

[0030] As a preferred implementation manner, power-off delay relays are provided for both the first cooling fan 3 and the second cooling fan 4.

[0031] In the above embodiments, after the temperature in the control cabinet 1 drops below the set value, the cooling fan will continue to operate for a period of time according to the preset logic, and the duration of this continuous operation can be flexibly set by those skilled in the art according to the actual working conditions. In typical working conditions, it can be preset to 5 minutes. This design can effectively avoid the frequent start and stop of the cooling fan caused by small fluctuations in the cabinet temperature near the set value, thereby preventing the surge voltage generated during the start and stop of the fan motor from causing electrical impact on the power supply and other electrical loads, protecting the stability of the power supply system, extending the service life of the cooling fan and related electrical components, and improving the operating reliability of the entire heat dissipation system in the temperature critical state.

[0032] As a preferred implementation manner, a wireless communication module communicatively connected to the central control unit 13 is further included, and the wireless communication module is externally connected to an operation and maintenance terminal through a remote monitoring center.

[0033] In the above embodiments, the wireless communication module can transmit real-time information such as the data of the temperature sensors 6 distributed in each area of the control cabinet 1, the operating status of the cooling fans, the operating parameters of the refrigeration equipment 2, and the position of the air duct switching device 16 to the remote monitoring center in real time. The operation and maintenance personnel can remotely obtain the detailed operation data in the control cabinet 1 through terminal devices such as computers and mobile phones, without the need for on-site inspections. In addition, the remote monitoring center can store historical operation data for the operation and maintenance personnel to analyze the equipment heating law, the energy efficiency of the cooling system, etc., providing data support for optimizing the control strategy, equipment selection, and preventive maintenance, improving the manageability of the cooling system and the overall reliability of the wind turbine operation, and reducing the manual operation and maintenance cost and the equipment failure risk.

[0034] As a preferred implementation manner, it further includes an alarm module electrically connected to the above-mentioned central control unit 13.

[0035] In the above embodiments, by adding an alarm module electrically connected to the central control unit 13, an audible and visual alarm signal can be immediately emitted when abnormal temperature, equipment failure, etc. are detected in the control cabinet 1, facilitating the on-site operation and maintenance personnel to quickly detect the abnormality and take treatment measures, shortening the fault response time, and reducing the risk of equipment damage caused by the continuous development of the fault.

[0036] As a preferred implementation manner, it further includes a fault diagnosis module 14, a cleaning structure, and a spare sensor. The above-mentioned cleaning structure is used for cleaning the above-mentioned cooling fan group, and the above-mentioned spare sensor is used for standby replacement when the above-mentioned temperature sensor 6 fails;

[0037] Among them, the above-mentioned fault diagnosis module 14 is used to obtain the operating status of the cooling fans, the refrigeration equipment 2, and the temperature sensors 6, and compare them with the preset standard operating data and fault feature library of the above-mentioned fault diagnosis module 14 to determine the fault type and location, so as to start the above-mentioned cleaning structure or / and the above-mentioned spare sensor to work.

[0038] In the above embodiments, the fault diagnosis module 14 can accurately identify the abnormal state of the equipment by obtaining the operation data of the cooling fan, the refrigeration device 2, and the temperature sensor 6 in real time and comparing and analyzing it with the preset standard operation data and the fault feature library, quickly locate the fault type (such as dust accumulation on the fan blades, abnormal sensor signals) and the occurrence location, and avoid the lag and subjectivity of manual inspection. When it is detected that the rotation speed of the cooling fan decreases due to dust accumulation, the cleaning structure is automatically started to clean the fan blades, maintain the heat dissipation efficiency of the fan, and reduce the risk of component overheating caused by the decrease in heat dissipation capacity; while the backup sensor, as a redundant design, automatically switches to use when the temperature sensor 6 fails, ensuring the continuity of key temperature data acquisition and avoiding control misjudgment or system out-of-control caused by sensor failure. The coordinated work of the three builds an intelligent maintenance system integrating fault detection, automatic repair, and redundant backup, which not only improves the self-diagnosis and self-repair capabilities of the heat dissipation system, reduces the frequency of manual intervention, but also reduces the probability of sudden equipment failures through preventive maintenance, extends the service life of sensors and heat dissipation equipment, ensures the stability and data reliability of the wind turbine generator set during long-term operation, and effectively reduces the operation and maintenance costs and downtime losses.

[0039] Specifically, the cleaning structure can be a blowing and spraying structure, that is, a combination of a blowing pipe and a gas source.

[0040] As a preferred implementation manner, a barometric pressure sensor 5 and a humidity sensor 7 are provided inside both the first installation space 101 and the second installation space 102.

[0041] In the above embodiments, by providing the barometric pressure sensor 5 and the humidity sensor 7 inside the first installation space 101 and the second installation space 102, the barometric pressure and humidity parameters of the environment where the main controller 8 and the safety chain logic module 12 are located can be accurately monitored in real time, providing data support for the central control unit 13 to adjust the heat dissipation strategy and start dehumidification or moisture-proof measures, and ensuring the stable operation of key electrical components in a suitable temperature, humidity, and barometric pressure environment.

[0042] As a preferred implementation manner, a composite graphene-paraffin phase change material layer is provided on the surfaces of both the main controller 8 and the safety chain logic module 12.

[0043] In the above embodiments, a composite graphene - paraffin phase change material layer is provided on the surfaces of the main controller 8 and the safety chain logic module 12. The advantage lies in using the latent heat characteristics of the phase change material to achieve dynamic buffering of the surface temperature of the components: when the components generate heat during operation and the surface temperature rises, the paraffin component in the phase change material melts from solid to liquid, absorbing and storing a large amount of heat and inhibiting the rapid rise of temperature; when the load of the components decreases or the temperature drops due to the operation of the cooling system, the liquid paraffin gradually solidifies into a solid state, releasing the stored heat and avoiding a sudden drop in temperature. The addition of graphene can significantly improve the thermal conductivity of the material, accelerate the uniform diffusion of heat within the phase change material layer, and enhance the heat dissipation capacity for local hot spots. As a passive thermal management measure, this material layer can effectively reduce the amplitude of surface temperature fluctuations of the components, reduce the impact of thermal stress caused by drastic temperature changes on the service life of the components, and at the same time assist the active cooling system to work more smoothly under critical temperature conditions, improving the operating stability of key electrical components under complex working conditions, especially suitable for scenarios with intermittent high loads or large fluctuations in ambient temperature.

[0044] As a preferred embodiment, the numbers of the above - mentioned first cooling fan 3 and the above - mentioned second cooling fan 4 are both multiple.

[0045] In the above embodiments, multiple cooling fans are provided in the first and second installation spaces 102. The heat dissipation efficiency can be improved by increasing the air circulation volume per unit time. And when a single fan fails, the remaining fans can still maintain the basic heat dissipation capacity. At the same time, the multi - fan layout can make the air flow distribution more uniform, avoid local overheating of key components, and enhance the stability and reliability of the cooling system.

[0046] As a preferred embodiment, filter sponges are provided at the air inlets of the above - mentioned first installation space 101 and the air inlets of the above - mentioned second installation space 102.

[0047] In the above embodiments, filter sponges are provided at the air inlets of the first installation space 101 and the second installation space 102, which can effectively block impurities such as dust and particles in the air from entering the control cabinet 1, avoid the accumulation of impurities on the surfaces of electrical components and cooling fans, which affects the heat dissipation efficiency and the operation reliability of the equipment, and reduce the risk of component failure and the frequency of maintenance and cleaning caused by pollution.

[0048] In addition, unless otherwise clearly specified or limited, in the embodiments of the present application, if the terms "install" or "connect" appear, they should be understood in a broad sense. For example, "connect" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. If the directional terms such as "upper", "lower", "left", "right", "inner", "outer", "side", etc. appear, they are only references to the direction of the accompanying drawings or the orientation in which the product is usually placed during use, and are only for clearly describing the present application, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation to the present application. The terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance; "a plurality of" means at least two. In the embodiments of the present application, the limitations on relative positional relationships such as parallel, perpendicular, and alignment are all with respect to the current technological level and are not absolutely strict limitations. A small deviation is allowed, and approximate parallelism, approximate perpendicularity, approximate alignment, etc. are all acceptable. For example, if A is parallel to B, it means that A is parallel to B or approximately parallel to B, and the included angle between A and B can be between 0 degrees and 10 degrees.

[0049] The above are only some embodiments and implementation manners of the present application. The protection scope of the present application is not limited thereto. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other, and any arbitrary combination of features in different embodiments is also within the protection scope of the present application. Any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed in the present application should be covered within the protection scope of the present application.

Claims

1. A heat dissipation system applied to a wind power generation structure, characterized in that, Comprising: A control cabinet (1) with an internally provided first installation space (101), a second installation space (102), and a third installation space (103) that are independent of each other. The first installation space (101) is for installing a main controller (8), the second installation space (102) is for installing a safety chain logic module (12). The first installation space (101) and the second installation space (102) are both provided with air inlets, and the third installation space (103) is provided with an air outlet to communicate with the external space of the control cabinet (1). The air outlet and the two air inlets are both provided with ventilation louvers (15); A heat dissipation component, including a heat dissipation fan group, a main air duct (9), a first branch air duct (10), and a second branch air duct (11). The two ends of the main air duct (9) are respectively communicated with the first installation space (101) and the third installation space (103). The two ends of the first branch air duct (10) are respectively communicated with the second installation space (102) and the main air duct (9). The two ends of the second branch air duct (11) are respectively communicated with the second installation space (102) and the main air duct (9), and the connection point of the second branch air duct (11) and the main air duct (9) is located between the first branch air duct (10) and the first installation space (101). The second branch air duct (11) and the main air duct (9) form a T-shaped air duct, and an air duct switching device (16) is provided at the T-shaped air duct; Wherein, the heat dissipation fan group includes a first heat dissipation fan (3) and a second heat dissipation fan (4), and they are respectively arranged in the first installation space (101) and the second installation space (102); A plurality of temperature sensors (6) for being respectively arranged at the main controller (8), the safety chain logic module (12), the main air duct (9) and the first installation space (101), and at the second branch air duct (11); and A control component arranged in the third installation space (103), including a central control unit (13), a heat dissipation fan control module, a ventilation louver control module, an air duct switching device control module, and a status monitoring sensor.

2. The heat dissipation system applied to the wind power generation structure according to claim 1, characterized in that, It further includes a refrigeration device (2) and a refrigeration device control module, and the refrigeration device (2) is provided in both the first installation space (101) and the second installation space (102).

3. The heat dissipation system applied to the wind power generation structure according to claim 2, characterized in that, The first heat dissipation fan (3) and the second heat dissipation fan (4) are both provided with power-off delay relays.

4. A heat dissipation system applied to a wind power generation structure according to claim 3, characterized in that, It further includes a wireless communication module communicatively connected to the central control unit (13), and the wireless communication module is externally connected to an operation and maintenance terminal through a remote monitoring center.

5. A heat dissipation system applied to a wind power generation structure according to claim 4, characterized in that, It further includes an alarm module electrically connected to the central control unit (13).

6. A heat dissipation system applied to a wind power generation structure according to any one of claims 1-5, characterized in that, It further includes a fault diagnosis module (14), a cleaning structure, and spare sensors. The cleaning structure is used for cleaning the heat dissipation fan group, and the spare sensors are used for standby replacement when the temperature sensors (6) fail; Among them, the fault diagnosis module (14) is used to obtain the operating states of the cooling fan, the refrigeration device (2), and the temperature sensor (6), and compare them with the preset standard operating data and the fault feature library of the fault diagnosis module (14) to determine the fault type and location, so as to start the operation of the cleaning structure or / and the spare sensor.

7. The heat dissipation system applied to the wind power generation structure according to claim 6, characterized in that, Pressure sensors (5) and humidity sensors (7) are arranged inside both the first installation space (101) and the second installation space (102).

8. The heat dissipation system applied to the wind power generation structure according to claim 7, characterized in that, Composite graphene-paraffin phase change material layers are arranged on the surfaces of both the main controller (8) and the safety chain logic module (12).

9. A heat dissipation system applied to a wind power generation structure according to claim 1, characterized in that, The numbers of both the first cooling fan (3) and the second cooling fan (4) are multiple.

10. A heat dissipation system applied to a wind power generation structure according to claim 1, characterized in that, Filter sponges are arranged at the air inlets of both the first installation space (101) and the second installation space (102).

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