Wind power generation cabin multi-heat-dissipation device and wind power generation cabin multi-heat-dissipation method

Abstract

The invention discloses a wind power generation cabin multiple heat dissipation device and method, and relates to the field of wind power generation, the wind power generation cabin multiple heat dissipation device comprises a machine shell, a flow guide cover is connected to the left end of the machine shell, a gearbox is rotatably connected to the interior, close to the flow guide cover, of the machine shell, and a rod of the flow guide cover is connected to the interior of the gearbox in a penetrating mode; a supporting cylinder is connected to the side face of the gearbox, a bottom plate is installed in the machine shell, electrical equipment is installed on the upper surface of the bottom plate, a straight pipe is connected to the side face of a small hole of a conical ring in a penetrating mode, the straight pipe is connected to the inner sides of cooling fins, the cooling fins are fixed to the surface of the machine shell in a surrounding mode, and multiple sets of cooling fins are fixed. According to the multiple heat dissipation device and method for the cabin for wind power generation, air flows out of the ventilation opening when being conveyed into the machine shell from the flow dividing pipe and the ventilation hose, cold and heat exchange of air is achieved, the connecting block is driven to be positioned, natural wind blown out of the ventilation hose can blow a designated position, and accurate heat dissipation of equipment is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and particularly to a multi - heat dissipation device and method for the nacelle of wind power generation. Background Technique

[0002] Wind power generation is a clean energy that converts wind energy into electrical energy. A wind turbine consists of blades, a hub, a nacelle, a tower, and a base. The nacelle is the core component integration space of the wind turbine, and it contains key equipment such as a gearbox, a generator, a converter, and a control system. The operation of the equipment inside the nacelle generates a large amount of heat, and a heat dissipation device is required to dissipate the heat in a timely manner to ensure the efficient operation of the equipment. Multi - heat dissipation refers to the combination of two or more different principles or forms of heat dissipation methods to form a synergistic heat dissipation effect, such as the combination of air cooling, liquid cooling, phase - change heat dissipation, heat pipe heat dissipation, etc.

[0003] At present, there are still some deficiencies in the nacelle heat dissipation. For example, the heat dissipation effects of the internal structures are inconsistent, which reduces the heat dissipation effect.

[0004] In order to overcome the problem of insufficient heat dissipation effect, a Chinese patent of the prior art (publication number: CN219045448U) discloses a nacelle heat dissipation component for wind power generation. By setting a dehumidification component at the right end of the nacelle, the dehumidification sieve tube dehumidifies the moisture in the external air, and then the dehumidified air filters the dust in the air through a dust - removing filter screen, so that the filtered air is introduced into the nacelle through the air outlet, thus avoiding the short - circuit of the electronic components inside the nacelle caused by moisture entering the nacelle, and improving its working efficiency; by setting a heat dissipation component at the bottom end inside the nacelle, the hydraulic telescopic rod indirectly opens the heat dissipation holes while the blower discharges the hot air inside the nacelle through the heat dissipation holes, enabling the gas to flow inside the nacelle, thereby improving the heat dissipation effect.

[0005] However, the currently used nacelle heat dissipation component still has some deficiencies. In the above - mentioned document, the nacelle dissipates heat through a blower. This heat dissipation structure has limited effect in hot weather. Moreover, in summer, not only the equipment but also the nacelle shell, etc. will generate heat, and the single - sided heat dissipation effect is insufficient. Therefore, the existing structure needs to be improved. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi - heat dissipation device and method for the nacelle of wind power generation to solve the problems of insufficient heat dissipation effect of the heat dissipation device and poor heat dissipation effect at some positions of the device, which affect the stable operation of the equipment as mentioned in the above background technique.

[0007] To achieve the above object, the present invention provides the following technical solutions: A multi-stage cooling device and method for the nacelle of a wind turbine, including a housing, a fairing is connected to the left end of the housing, a gearbox is rotatably connected inside the housing near the fairing, a rod of the fairing penetrates and is connected inside the gearbox, a support cylinder is connected to the side of the gearbox, a bottom plate is installed inside the housing, and electrical equipment is installed on the upper surface of the bottom plate: The electrical equipment is composed of a control cabinet, a yaw motor, and a converter. A conical ring is fixed to the side of the housing, and a cover mechanism is connected inside the conical ring. The cover mechanism is composed of an electric telescopic rod, a guide rod, and a cover. The cover penetrates and slides inside the conical ring, and the electric telescopic rod is installed inside the housing. A plurality of small holes and three large holes are penetrated and opened on the inner side of the conical ring. An L-shaped pipe is penetrated and connected to the inner side of the large hole. A heat dissipation mechanism for improving the heat dissipation effect of the nacelle is provided on the side of the housing.

[0008] Further, the heat dissipation mechanism further includes a filter plate connected to one end of the L-shaped pipe, and the other end of the L-shaped pipe penetrates and is connected inside the housing. A flow dividing pipe and a ventilation hose are connected to the bottom end of the L-shaped pipe in a through manner. A ventilation opening is penetrated and opened on the inner side of the housing away from the fairing. A first heat dissipation fan is installed inside the ventilation opening, and a filter screen is connected to the inner side of the ventilation opening. A closing mechanism is connected to the side of the housing near the ventilation opening. The closing mechanism includes a motor and a closing plate. The motor is installed inside the housing, and the cover is rotatably connected to the outside of the housing through the output end of the motor.

[0009] Further, a straight pipe is penetrated and connected to the side of the small hole of the conical ring, and the straight pipe is connected to the inside of the heat dissipation fins. The heat dissipation fins are fixedly arranged around the surface of the housing, and multiple groups of heat dissipation fins are fixed.

[0010] Further, a positioning mechanism for improving the heat dissipation effect is further provided inside the housing. The positioning mechanism includes a connection block connected to the end of the ventilation hose. A fixing rod is fixed to the side of the connection block, and a sliding rod penetrates and slides inside the fixing rod.

[0011] Further, magnets are symmetrically installed on the side of the sliding rod away from the fixing rod. A plurality of engaging grooves are symmetrically opened on both sides of the fixing rod, and telescopic grooves are symmetrically opened on the inner side of the sliding rod.

[0012] Further, an engaging block penetrates and slides inside the telescopic groove. A spring is connected between the engaging block and the telescopic groove. The engaging block is in an engaging connection with the engaging groove.

[0013] Furthermore, a liquid cooling mechanism for realizing dual heat dissipation of the cabin is arranged on the top of the base plate, and the liquid cooling mechanism includes two heat absorbing plates symmetrically connected to the upper surface of the base plate, and the heat absorbing plates are each connected with a guide pipe running through the inside thereof, and the guide pipe has two ports, and a cooling box is connected to the bottom of the base plate, and a branch pipe one is connected through the ports of the two guide pipes, and the branch pipe one is located on one side of the cooling box, and the branch pipe one is connected through with the cooling box, and a water pump is installed at the bottom of the base plate, and the water pump is located on the other side of the cooling box.

[0014] Furthermore, the water pump has two water outlets, and both water outlets are connected to branch pipe 2, and branch pipe 2 is connected to the end of the guide pipe away from branch pipe 1, and the water inlet of the water pump is connected to the side of the cooling box through the water inlet pipe.

[0015] Furthermore, a heat conducting plate is bonded to the upper surface of the cooling box, a semiconductor is symmetrically connected to the top of the heat conducting plate, a ventilation fan is connected to the top of the semiconductor, and the heat conducting plate, semiconductor and ventilation fan are all located inside the bottom plate.

[0016] The method for using the wind power generation cabin multi-heat dissipation device is characterized by comprising the following steps: S1: Start the cover mechanism, push the cover upward along the guide rod through the electric telescopic rod to expose the perforation of the conical ring; then start the closing mechanism, drive the closing plate to rotate away from the vent through the motor, start the heat dissipation fan to discharge the high-temperature gas, and use the natural wind at high altitude to achieve heat exchange; S2: Press the locking block to disengage it from the locking slot. After the slide bar is stretched to a specified height, the locking block is reset and locked into another set of locking slots under the action of the spring. Move the fixed rod to drive the connecting block to adjust the position of the ventilation hose port. Use the magnet to absorb the slide bar to the bottom plate to achieve precise heat dissipation. S3: When the temperature is high, the water pump is started, and the coolant circulates through the water inlet pipe, branch pipe 2, guide pipe, and branch pipe 1, absorbs the heat of the equipment through the heat absorbing plate, starts the semiconductor and the ventilation fan, and the semiconductor reduces the coolant temperature through the heat conducting plate, and the ventilation fan dissipates the residual heat, combining air cooling and liquid cooling to improve the heat dissipation efficiency.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In the wind power generation cabin multi-heat dissipation device and method thereof, air is transported from the shunt pipe and the ventilation hose to the inside of the casing and then flows out from the vent, thus realizing the cold and heat exchange of the gas. By driving the connection block to position, the natural wind blown out by the ventilation hose can be blown to the designated position, thus realizing the precise heat dissipation of the equipment.

[0018] 2. A conical ring is provided, and the shape of the conical ring can better block the air passing through the surface of the casing, so that the air can flow into the L-shaped tube and the straight tube faster, which can improve the heat dissipation efficiency.

[0019] 3. A cover plate mechanism and a closing mechanism are provided. The cover plate of the cover plate mechanism and the closing plate of the closing mechanism can seal the interior of the casing, preventing a large amount of dust or moisture from entering the interior of the casing under normal conditions, effectively ensuring the efficient operation of the equipment inside the casing.

[0020] 4. Magnets are provided. The magnets can position the connecting blocks, and the positions of the connecting blocks can be easily operated, so as to conveniently dissipate heat precisely at the heat-generating positions of the equipment, improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the overall right-side perspective structure of the present invention; Figure 2 Schematic diagram of the overall left-side perspective structure of the present invention; Figure 3 Schematic diagram of the split perspective structure of the conical ring of the present invention; Figure 4 Schematic diagram of the enlarged perspective structure of the electrical equipment of the present invention; Figure 5 Schematic diagram of the enlarged perspective structure of the heat absorption plate of the present invention; Figure 6 Schematic diagram of the enlarged perspective structure of the closing mechanism of the present invention; Figure 7 Schematic diagram of the enlarged perspective structure of the L-shaped pipe of the present invention; Figure 8 Schematic diagram of the enlarged perspective structure of the heat dissipation fins of the present invention; Figure 9 Schematic diagram of the enlarged perspective structure of the ventilation hose of the present invention; Figure 10 Schematic diagram of the enlarged perspective structure of the sliding rod of the present invention; Figure 11 For the present invention Figure 10 Schematic diagram of the enlarged perspective structure of part A in Figure 12 Schematic diagram of the enlarged perspective structure of the cooling box of the present invention; Figure 13 Schematic diagram of the enlarged perspective structure of the diversion pipe of the present invention; Figure 14 Schematic diagram of the enlarged perspective structure of the semiconductor of the present invention.

[0022] In the figure: 1, housing; 2, fairing; 3, gearbox; 4, support cylinder; 5, electrical equipment; 6, bottom plate; 101, conical ring; 102, L-shaped pipe; 103, filter plate; 104, shunt pipe; 105, ventilation hose; 106, straight pipe; 107, heat dissipation fins; 108, ventilation opening; 109, first heat dissipation fan; 110, cover plate mechanism; 111, closing mechanism; 201, connecting block; 202, fixing rod; 203, sliding rod; 204, magnet; 205, engaging groove; 206, telescopic groove; 207, engaging block; 301, heat absorption plate; 302, diversion pipe; 303, first branch pipe; 304, water pump; 305, second branch pipe; 306, water inlet pipe; 308, heat conducting plate; 309, semiconductor; 310, cooling box. Detailed implementation mode

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment 1. As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8For the technical solution shown, the present invention provides the following technical solution: To solve the problem of insufficient heat dissipation effect of the heat dissipation device, a heat dissipation mechanism is disclosed, which includes a housing 1. A flow guide cover 2 is connected to the left end of the housing 1. A gear box 3 is rotatably connected inside the housing 1 near the flow guide cover 2. The rod of the flow guide cover 2 penetrates and is connected inside the gear box 3. A support cylinder 4 is connected to the side of the gear box 3. A bottom plate 6 is installed inside the housing 1. An electrical device 5 is installed on the upper surface of the bottom plate 6. The electrical device 5 is composed of a control cabinet, a yaw motor, and a converter. A conical ring 101 is fixed to the side of the housing 1. A cover plate mechanism 110 is connected inside the conical ring 101. The cover plate mechanism 110 is composed of an electric telescopic rod, a guide rod, and a cover plate. The cover plate slides through the conical ring 101. The electric telescopic rod is installed inside the housing 1. A plurality of small holes and three large holes are penetrated and opened on the inner side of the conical ring 101. An L-shaped pipe 102 is penetrated and connected to the inner side of the large hole. A heat dissipation mechanism for experiencing the heat dissipation effect of the high nacelle is provided on the side of the housing 1. The heat dissipation mechanism further includes a filter plate 103 connected to one end of the L-shaped pipe 102. The other end of the L-shaped pipe 102 is penetrated and connected inside the housing 1. A shunt pipe 104 and a ventilation hose 105 are connected to the bottom end of the L-shaped pipe 102 in a through manner. A ventilation port 108 is penetrated and opened on the inner side of the housing 1 away from the flow guide cover 2. A first heat dissipation fan 109 is installed inside the ventilation port 108. A filter screen is connected to the inner side of the ventilation port 108. A closing mechanism 111 is connected to the side of the housing 1 near the ventilation port 108. The closing mechanism 111 includes a motor and a closing plate. The motor is installed inside the housing 1. The cover plate is rotatably connected to the outside of the housing 1 through the output end of the motor. A straight pipe 106 is penetrated and connected to the side of the small hole of the conical ring 101. The straight pipe 106 is connected to the inner side of the heat dissipation fins 107. The heat dissipation fins 107 are fixedly arranged around the surface of the housing 1. And multiple groups of heat dissipation fins 107 are fixed.

[0025] When in use for wind power generation, under the action of natural wind, the fairing 2 will rotate, converting wind energy into mechanical energy. Then, the gearbox 3 is used to change the rotational speed to meet the basic requirements for power generation. The control cabinet of the electrical equipment 5 can reasonably regulate various changing data, such as controlling wind speed, wind direction, temperature, current, etc. The converter of the electrical equipment 5 converts the generated alternating current into direct current, and then transports it to a designated location for storage through the circuit inside the support cylinder 4. During operation, the equipment inside the casing 1 generates high temperature. First, the cover plate mechanism 110 is started. The cover plate mechanism 110 can push the cover plate upward through the electric telescopic rod. When the cover plate moves upward, it can slide inside the conical ring 101 through the guide rod. When the cover plate slides to a certain height, the holes in the three conical rings 101 will be exposed. Then, the closing mechanism 111 is started. The closing mechanism 111 can drive the closing plate to rotate out of the side of the ventilation opening 108 through the motor. At this time, the air inside the casing 1 can circulate well. The cover plate and the closing plate can prevent moisture from entering the inside of the casing 1 in bad weather. Then, the first cooling fan 109 can be started to discharge the high-temperature gas inside the casing 1 from the ventilation opening 108. And the casing 1 is at a high altitude position, and the wind force is usually relatively strong. The natural wind will be transmitted to the inside of the conical ring 101 along the side of the fairing 2. The wind force can pass through the small holes and large holes of the conical ring 101. The natural wind will be guided and the flow rate will be accelerated. The natural wind will flow through the small holes to the straight pipe 106. When the wind force quickly flows through the straight pipe 106, it will be guided and pass through the heat dissipation fins 107. Due to the increase in the temperature inside the casing 1 and sunlight irradiation, a relatively high temperature will appear on the surface of the casing 1. The temperature will be transmitted to the heat dissipation fins 107 for heat dissipation. The quickly flowing wind force will accelerate the heat dissipation of the heat dissipation fins 107, thus realizing the efficient heat dissipation of the nacelle. When the wind force passes through the large holes of the conical ring 101, it will be respectively transported to the inside of the shunt pipe 104 and the ventilation hose 105 through the L-shaped pipe 102 and finally transported to the inside of the casing 1. During this process, the filter plate 103 can block the dust flowing through. When the air is transported from the shunt pipe 104 and the ventilation hose 105 to the inside of the casing 1, it will flow out from the ventilation opening 108, realizing the heat exchange of the gas and further improving the heat dissipation effect of the nacelle.

[0026] Embodiment 2: As Figure 7 , Figure 9 , Figure 10 and Figure 11For the technical solution shown, the present invention provides the following technical solution: To solve the problem that the heat dissipation effect at some positions of the device is poor and affects the stable operation of the device, a positioning mechanism is disclosed: A positioning mechanism for improving the heat dissipation effect is further provided inside the casing 1. The positioning mechanism includes a connecting block 201 connected to the end of the ventilation hose 105. A fixing rod 202 is fixed to the side of the connecting block 201. A sliding rod 203 is slidably connected through the inside of the fixing rod 202. Magnets 204 are symmetrically installed on the side of the sliding rod 203 away from the fixing rod 202. A plurality of engaging grooves 205 are symmetrically formed on both sides of the fixing rod 202. Telescopic grooves 206 are symmetrically formed on the inner side of the sliding rod 203. An engaging block 207 is slidably connected through the inside of the telescopic groove 206. A spring is connected between the engaging block 207 and the telescopic groove 206. The engaging block 207 is in an engaging connection with the engaging groove 205.

[0027] Some positions where some devices are prone to heat generation may be relatively off, and the gas does not circulate, which will affect the heat dissipation effect of these devices. Therefore, the engaging block 207 can be pressed to slide through the telescopic groove 206 and the engaging groove 205. When the engaging block 207 slides, it can squeeze the spring. When the engaging block 207 is squeezed out of the inside of the engaging groove 205, the sliding rod 203 and the fixing rod 202 can be stretched. When the sliding rod 203 is stretched, it can slide inside the fixing rod 202. When the sliding rod 203 is stretched to the designated position, the engaging block 207 can move to the side of another group of engaging grooves 205. The engaging block 207 can be self-reset by the elastic force of the spring and engage and position with the engaging groove 205. When the engaging block 207 is positioned, it can drive the sliding rod 203 and the fixing rod 202 to be positioned. At this time, the sliding rod 203 and the engaging groove 205 have changed their own heights. After the height is changed, the fixing rod 202 can be moved. When the fixing rod 202 is moved, it can drive the connecting block 201 to move. When the connecting block 201 is moved, it can pull the ventilation hose 105 to move. The ventilation hose 105 can follow the connecting block 201 to be stretched and turned. The connecting block 201 can drive the port of the ventilation hose 105 to move to the position where the device needs to be specified for heat dissipation. The sliding rod 203 is adsorbed on the upper surface of the bottom plate 6 through the magnet 204. When the sliding rod 203 is positioned through the magnet 204, it can drive the connecting block 201 to be positioned. The natural wind blown out by the ventilation hose 105 can blow to the specified position, realizing the precise heat dissipation of the device, and the heat dissipation effect is more obvious.

[0028] Embodiment III. As Figure 4 、 Figure 5 、 Figure 12 、 Figure 13 and Figure 14The technical solution shown in the figure, the present invention provides the following technical solution: in order to solve the problem that the air cooling heat dissipation efficiency of the heat dissipation device is not high, on the basis of the first embodiment, a liquid cooling mechanism is disclosed: a liquid cooling mechanism for realizing dual heat dissipation of the cabin is arranged on the top of the bottom plate 6, and the liquid cooling mechanism includes two heat absorbing plates 301 symmetrically connected to the upper surface of the bottom plate 6, and the inside of the heat absorbing plates 301 is penetrated by a guide pipe 302, and the guide pipe 302 has two ports, and the bottom of the bottom plate 6 is connected to a cooling box 310, and a branch pipe 1 303 is penetrated and connected between the ports of the two guide pipes 302, and the branch pipe 1 303 is located on one side of the cooling box 310, and the branch pipe 1 303 and the cooling box 310 are connected. 0 forms a through connection, a water pump 304 is installed at the bottom of the bottom plate 6, and the water pump 304 is located on the other side of the cooling box 310. The water pump 304 has two water outlets, and the two water outlets are connected to the second branch pipe 305, the second branch pipe 305 is through-connected to the end of the guide pipe 302 away from the first branch pipe 303, and the water inlet of the water pump 304 is through-connected to the side of the cooling box 310 through the water inlet pipe 306. The upper surface of the cooling box 310 is fitted with a heat conducting plate 308, and the top of the heat conducting plate 308 is symmetrically connected to the semiconductor 309, and the top of the semiconductor 309 is connected to the ventilation fan, and the heat conducting plate 308, the semiconductor 309 and the ventilation fan are all located inside the bottom plate 6.

[0029] When the weather is hot, the cooling effect of natural wind will be reduced. Some high-heat equipment needs to be installed in advance near the heat absorbing plate 301. When the temperature is high, the water pump 304 can be started. When the water pump 304 is started, the coolant inside the cooling box 310 can be extracted through the water inlet pipe 306. The water pump 304 then transports the coolant to the inside of the two branch pipes 305. The branch pipe 305 transports the coolant to the inside of the guide pipe 302. The guide pipe 302 then transports the coolant to the inside of the cooling box 310 through the branch pipe 1 303, realizing the circulation of the coolant. When the coolant is transported through the guide pipe 302, it will absorb the heat of the heat absorbing plate 301, and the heat absorbing Plate 301 will absorb the heat of the equipment running on the side, so the liquid cooling effect of the generator can be achieved. The heat of the coolant itself will increase after being used many times, and the increased heat will be absorbed by the heat conducting plate 308. In order to improve the efficiency of liquid cooling, the semiconductor 309 and the ventilation fan can be started. The semiconductor 309 can produce a cooling effect to reduce the temperature of the heat conducting plate 308. The heat conducting plate 308 can cool the coolant inside the cooling box 310, and the ventilation fan can quickly expel and volatilize the heat emitted by the semiconductor 309, thereby ensuring the operating efficiency of the semiconductor 309. The device realizes two heat dissipation methods, air cooling and liquid cooling, to ensure the heat dissipation effect.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi - heat dissipation device for the nacelle of wind power generation, including a housing (1), a fairing (2) is connected to the left end of the housing (1), a gearbox (3) is rotatably connected inside the housing (1) near the fairing (2), a rod of the fairing (2) is connected through the inside of the gearbox (3), a support cylinder (4) is connected to the side of the gearbox (3), a bottom plate (6) is installed inside the housing (1), and an electrical device (5) is installed on the upper surface of the bottom plate (6), characterized in that: The electrical device (5) consists of a control cabinet, a yaw motor and a converter. A conical ring (101) is fixed to the side of the housing (1), a cover plate mechanism (110) is connected inside the conical ring (101), the cover plate mechanism (110) consists of an electric telescopic rod, a guide rod and a cover plate, and the cover plate slides through the inside of the conical ring (101), and the electric telescopic rod is installed inside the housing (1). A plurality of small holes and three large holes are penetrated and opened on the inner side of the conical ring (101), an L - shaped pipe (102) is connected through the inside of the large hole, and a heat dissipation mechanism for improving the heat dissipation effect of the nacelle is arranged on the side of the housing (1).

2. The multi-heat dissipation device for a wind turbine nacelle according to claim 1, wherein: The heat dissipation mechanism further includes a filter plate (103) connected to one end of the L - shaped pipe (102), and the other end of the L - shaped pipe (102) is connected through the inside of the housing (1). A flow - dividing pipe (104) and a ventilation hose (105) are connected through the bottom end of the L - shaped pipe (102). A ventilation opening (108) is penetrated and opened on the inner side of the housing (1) away from the fairing (2), a first heat dissipation fan (109) is installed inside the ventilation opening (108), and a filter screen is connected to the inner side of the ventilation opening (108), and a closing mechanism (111) is connected to the side of the housing (1) near the ventilation opening (108). The closing mechanism (111) includes a motor and a closing plate, the motor is installed inside the housing (1), and the cover plate is rotatably connected to the outside of the housing (1) through the output end of the motor.

3. The multiple heat dissipation device for the nacelle of wind power generation according to claim 2, characterized in that: A straight pipe (106) is connected through the side of the small hole of the conical ring (101), and the straight pipe (106) is connected to the inside of the heat dissipation fins (107). The heat dissipation fins (107) are fixedly arranged around the surface of the housing (1), and multiple groups of heat dissipation fins (107) are fixed.

4. The multi-heat dissipation device for nacelle of wind power generation according to claim 1, wherein: A positioning mechanism for improving the heat dissipation effect is further arranged inside the housing (1). The positioning mechanism includes a connection block (201) connected to the end of the ventilation hose (105), a fixing rod (202) is fixed to the side of the connection block (201), and a sliding rod (203) is slidably connected through the inside of the fixing rod (202).

5. A multiple heat dissipation device for a nacelle of a wind power generation, according to claim 4, characterized in that: Magnets (204) are symmetrically installed on the side of the sliding rod (203) away from the fixing rod (202), a plurality of engaging grooves (205) are symmetrically opened on both sides of the fixing rod (202), and telescopic grooves (206) are symmetrically opened on the inner side of the sliding rod (203).

6. The multi-heat dissipation device for the nacelle of wind power generation according to claim 5, characterized in that: A engaging block (207) is slidably connected through the inside of the telescopic groove (206), a spring is connected between the engaging block (207) and the telescopic groove (206), and the engaging block (207) is in engaging connection with the engaging groove (205).

7. The multi-heat dissipation device for the nacelle of wind power generation according to claim 1, wherein: A liquid cooling mechanism for realizing dual heat dissipation of the cabin is arranged on the top of the bottom plate (6), and the liquid cooling mechanism comprises two heat absorbing plates (301) symmetrically connected to the upper surface of the bottom plate (6), and a flow guide pipe (302) is connected through the inside of each of the heat absorbing plates (301), and the flow guide pipe (302) has two ports. A cooling box (310) is connected to the bottom of the bottom plate (6), and a branch pipe (303) is connected through the ports of the two flow guide pipes (302), and the branch pipe (303) is located on one side of the cooling box (310), and the branch pipe (303) and the cooling box (310) are connected through, and a water pump (304) is installed at the bottom of the bottom plate (6), and the water pump (304) is located on the other side of the cooling box (310).

8. A multi - heat dissipation device for a wind turbine nacelle according to claim 7, characterized in that: The water pump (304) has two water outlets, and both water outlets are connected to branch pipe 2 (305). Branch pipe 2 (305) is connected to the end of the guide pipe (302) away from branch pipe 1 (303). The water inlet of the water pump (304) is connected to the side of the cooling box (310) through a water inlet pipe (306).

9. The multi-heat dissipation device for the nacelle of wind power generation according to claim 7, wherein: The upper surface of the cooling box (310) is fitted with a heat conducting plate (308), the top of the heat conducting plate (308) is symmetrically connected to a semiconductor (309), the top of the semiconductor (309) is connected to a ventilation fan, and the heat conducting plate (308), the semiconductor (309) and the ventilation fan are all located inside the bottom plate (6).

10. A method for using a multiple heat dissipation device for a wind turbine nacelle according to claim 9, characterized in that: The steps include: S1: starting the cover plate mechanism (110), pushing the cover plate upward along the guide rod through the electric telescopic rod to expose the perforation of the conical ring (101); then starting the closing mechanism (111), driving the closing plate to rotate away from the vent (108) through the motor, starting the heat dissipation fan 1 (109) to discharge the high-temperature gas, and at the same time utilizing the natural wind at high altitude to achieve heat exchange; S2: Pressing the locking block (207) to disengage the locking groove (205), stretching the slide bar (203) to a specified height, the locking block (207) is reset and locked into another set of locking grooves (205) under the action of a spring, moving the fixing rod (202) to drive the connecting block (201) to adjust the position of the port of the ventilation hose (105), and using the magnet (204) to absorb the slide bar (203) to the bottom plate (6), thereby achieving precise heat dissipation; S3: When the temperature is high, the water pump (304) is started, and the coolant circulates through the water inlet pipe (306), the second branch pipe (305), the guide pipe (302), and the first branch pipe (303), absorbs the heat of the equipment through the heat absorption plate (301), and starts the semiconductor (309) and the ventilation fan. The semiconductor (309) reduces the temperature of the coolant through the heat conduction plate (308), and the ventilation fan dissipates the residual heat, thereby combining air cooling and liquid cooling to improve the heat dissipation efficiency.

Images