Ventilation and heat dissipation structure of wind power generator cabin

Abstract

The invention relates to the technical field of wind driven generators, in particular to a wind driven generator cabin ventilation and heat dissipation structure which comprises a cabin cover and a temperature sensor arranged in the cabin cover, a first fan is fixedly connected to the side wall of the cabin cover in an inserted mode, and the air outlet end of the first fan communicates with an inner cavity of the cabin cover; the air inlet end of the first draught fan communicates with the external environment, a first straight pipeline is fixedly connected to the inner side wall of the cabin cover and communicates with the air outlet end of the first draught fan, and a plurality of first moisture absorbents are arranged in the first straight pipeline. The end, away from the first draught fan, of the first straight pipeline communicates with an arc-shaped pipe, the free end of the arc-shaped pipe communicates with a second straight pipeline, and a plurality of second moisture absorbents are arranged in the second straight pipeline. Equipment such as a wind driven generator in the cabin cover can be prevented from being in a humid environment for a long time, so that the service life of the equipment such as the wind driven generator is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine generators, and in particular to a ventilation and heat dissipation structure of a wind turbine generator cabin. Background Art

[0002] Wind power generation refers to the conversion of wind kinetic energy into electrical energy. Wind energy is a clean, pollution-free, renewable energy source that has been used by people for a long time, mainly through windmills to pump water, grind flour, etc. Using wind power to generate electricity is very environmentally friendly and has huge wind energy reserves. Therefore, it is increasingly valued by countries around the world. In wind power generation, wind energy is generally converted into mechanical work with the help of wind turbines. Mechanical work drives the rotor of the wind turbine to rotate and is ultimately converted into electrical energy. In order to ensure that the wind turbine can provide a stable output power, a safe and stable working environment needs to be provided. The nacelle cover is the outer shell of the wind turbine, which is used to install and protect the wind turbine and its accessories. The stability, strength, wind and dust resistance of its overall structure will directly affect the sustainability, safety and power generation efficiency of the wind turbine.

[0003] In the process of offshore wind power generation, the nacelle cover currently used realizes heat dissipation by directly opening ventilation holes on the nacelle cover. Although this method is simple to manufacture, after the external humid air enters the nacelle cover, it will directly contact the wind turbine and other equipment in the nacelle cover. If the wind turbine and other equipment are in a humid environment for a long time, the corrosion rate of the wind turbine and other equipment will be accelerated, thereby shortening the service life of the wind turbine and other equipment. In order to solve the above problems, the present invention proposes a ventilation and heat dissipation structure for a wind turbine nacelle. Summary of the invention

[0004] To achieve the above-mentioned objectives, the present invention provides a ventilation and heat dissipation structure for a wind turbine cabin, comprising a cabin cover and a temperature sensor arranged in the cabin cover, a first fan is fixedly plugged into the side wall of the cabin cover, an air outlet of the first fan is connected to the inner cavity of the cabin cover, an air inlet of the first fan is connected to the external environment, a first straight pipe is fixedly connected to the inner side wall of the cabin cover, the first straight pipe is connected to the air outlet of the first fan, a plurality of first desiccant are arranged in the first straight pipe, an end of the first straight pipe away from the first fan is connected to an arc pipe, a free end of the arc pipe is connected to a second straight pipe, a plurality of second desiccant are arranged in the second straight pipe.

[0005] Optionally, a filter is provided in the first straight pipe and / or the arc pipe and / or the second straight pipe, a humidity sensor is provided on the filter, the humidity sensor is provided between the first desiccant and the second desiccant, and the humidity sensor is used to sense the humidity of the cooling air after passing through the first desiccant.

[0006] Optionally, a dehumidification mechanism is further included. When the humidity sensor senses that the humidity of the cooling air after passing through the first desiccant is greater than a preset threshold, the dehumidification mechanism starts to dehumidify the first desiccant. The dehumidification mechanism includes a first trumpet-shaped pipe fixedly plugged into the first straight pipe, the first trumpet-shaped pipe is connected to the inner cavity of the first straight pipe, and the end of the first trumpet-shaped pipe away from the first straight pipe is connected to a third straight pipe. The third straight pipe is fixedly plugged into the side panel of the cabin cover, and a suction machine is provided in the third straight pipe.

[0007] Optionally, it also includes an isolation mechanism, which is used to seal and surround the first desiccant when the dehumidification mechanism dehumidifies the first desiccant, and the isolation mechanism includes a support tube, and the upper and lower ends of the support tube are fixedly connected with isolation plates, and the two isolation plates are movably plugged into the first straight pipes, and the two isolation plates are respectively arranged above and below a number of the first desiccant. A cylinder arm is fixedly installed on the outer wall of the support tube, and the free end of the cylinder arm is fixedly connected to the driving end of the driving cylinder, and the driving cylinder is fixedly installed on the outer wall of the second straight pipe.

[0008] Optionally, it also includes a boost and purge mechanism, which is respectively arranged on both sides of the first desiccant, and the boost and purge mechanism is used to boost and purge the moisture in the first desiccant from the other side while the dehumidification mechanism dehumidifies the first desiccant from one side. The boost and purge mechanism includes a fixed cylinder fixedly plugged into the first straight pipe, a boost and purge machine is fixedly connected to the inner side wall of the fixed cylinder, and ventilation holes are opened on the side panels of the fixed cylinder, and the ventilation holes are used to connect the inner cavity of the cabin cover with the inner cavity of the first straight pipe.

[0009] Optionally, a second trumpet-shaped pipe is fixedly arranged in the fixed cylinder, the second trumpet-shaped pipe has a first opening and a second opening, the size of the first opening is larger than the size of the second opening, the first opening is arranged toward the boost purge machine, and a sealing plug is movably inserted in the second trumpet-shaped pipe and the ventilation hole, the sealing plug includes a platform section and a rectangular section, the platform section is arranged to be in contact with the inner wall of the second trumpet-shaped pipe, and the end of the sealing plug located outside the second trumpet-shaped pipe is fixedly connected to a first guide support assembly, and the free end of the first guide support assembly is fixedly connected to the inner wall of the support cylinder.

[0010] Optionally, the first guide support assembly includes a first guide support rod, a first guide support tube and a first guide support spring, the first guide support rod is movably inserted in the first guide support tube, the first guide support spring is wound and arranged outside the first guide support rod, one end of the first guide support spring is fixedly connected to the side wall of the first guide support rod, the other end of the first guide support spring is fixedly connected to the outer side wall of the first guide support tube, the first guide support tube is connected to the support tube, and the first guide support rod and the sealing plug are interconnected.

[0011] Optionally, it also includes an anti-leakage mechanism, which includes an anti-leakage plate movably inserted on the top plate of the third straight pipe, the lower end of the anti-leakage plate is arranged to abut against the inner bottom wall of the third straight pipe, the upper end of the anti-leakage plate is fixedly connected to a first pull-out rod, one end of a second push-pull rod is hinged to the side wall of the first pull-out rod, the other end of the second push-pull rod is hinged to the third push-pull rod, the third push-pull rod is movably inserted in the first straight pipe, and one end of the third push-pull rod located in the first straight pipe is fixedly connected to the isolation plate.

[0012] Optionally, the anti-leakage mechanism also includes a supporting slider, which is fixedly arranged on the side wall of the first pulling rod, and the supporting slider is slidably arranged in a supporting slide groove, and the supporting slide groove is fixedly arranged on the inner side wall of the cabin cover, and a second guide support assembly is fixedly connected to the upper end surface of the supporting slider, and the upper end of the second guide support assembly is fixedly connected to the side wall of the supporting slide groove.

[0013] Optionally, the second guide support assembly includes a second guide support rod, a second guide support tube and a second guide support spring, the second guide support rod is movably inserted in the second guide support tube, the second guide support spring is wound and arranged outside the second guide support rod, one end of the second guide support spring is fixedly connected to the side wall of the second guide support rod, the other end of the second guide support spring is fixedly connected to the outer side wall of the second guide support tube, the second guide support tube is connected to the support slider, and the second guide support rod and the support slide groove are connected to each other.

[0014] The beneficial effects of the present invention are as follows:

[0015] The present invention improves the existing heat dissipation structure of a wind turbine cabin. A combination structure of a first desiccant and a second desiccant is added to the improved ventilation and heat dissipation structure of the wind turbine cabin. The combination structure is configured to dehumidify the cooling gas so that the cooling gas entering the cabin cover remains in a dry state, thereby preventing the wind turbine and other equipment in the cabin cover from being in a humid environment for a long time, thereby slowing down the corrosion rate of the wind turbine and other equipment and extending the service life of the wind turbine and other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the ventilation and heat dissipation structure of a wind turbine cabin of the present invention;

[0017] Figure 2 The ventilation and heat dissipation structure of the wind turbine cabin of the present invention Figure 1 A schematic diagram of the enlarged structure in the middle;

[0018] Figure 3 The ventilation and heat dissipation structure of the wind turbine cabin of the present invention Figure 2 A magnified schematic diagram of the structure B in the middle;

[0019] Figure 4 It is a structural schematic diagram of the dehumidification mechanism and the isolation mechanism of the ventilation and heat dissipation structure of the wind turbine cabin of the present invention arranged in the cabin cover;

[0020] Figure 5 The ventilation and heat dissipation structure of the wind turbine cabin of the present invention Figure 4 A magnified schematic diagram of the C structure;

[0021] Figure 6 It is a structural schematic diagram of a pressurized purge mechanism of a wind turbine cabin ventilation and heat dissipation structure provided in a cabin cover of the present invention;

[0022] Figure 7 The ventilation and heat dissipation structure of the wind turbine cabin of the present invention Figure 6 The enlarged schematic diagram of the D structure;

[0023] Figure 8 It is a structural schematic diagram of the anti-leakage mechanism of the ventilation and heat dissipation structure of the wind turbine cabin of the present invention;

[0024] Fig. 9 The ventilation and heat dissipation structure of the wind turbine cabin of the present invention Figure 8 A magnified schematic diagram of the structure in middle E.

[0025] Description of Reference Numerals

[0026] Nacelle cover 1, first fan 2, first straight duct 3, first desiccant 4, arc tube 5, second straight duct 6, second desiccant 7, filter 8, humidity sensor 9, dehumidification mechanism 10, first trumpet-shaped duct 101, third straight duct 102, suction machine 103, isolation mechanism 11, support cylinder 111, isolation plate 112, cylinder arm 113, drive cylinder 114, boost purge mechanism 12, fixed cylinder 121, boost purge machine 122, second trumpet-shaped duct 123, sealing plug 12 4. The first guide support assembly 125, the first guide support rod 1251, the first guide support tube 1252, the first guide support spring 1253, the anti-leakage mechanism 13, the anti-leakage plate 131, the first pull-out rod 132, the support slider 133, the support slide groove 134, the second guide support assembly 135, the second guide support rod 1351, the second guide support tube 1352, the second guide support spring 1353, the second push-pull rod 136, the third push-pull rod 137, and the temperature sensor 14. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with general skills in the field to which the present invention belongs. "Including" and similar words used in this article mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0028] In view of the problems existing in the prior art, an embodiment of the present invention provides a ventilation and heat dissipation structure for a wind turbine cabin, such as Figure 1 and Figure 2As shown, the ventilation and heat dissipation structure of the wind turbine generator cabin includes a nacelle cover 1, in which a wind turbine generator and other equipment are arranged. And a temperature sensor 14 is arranged in the nacelle cover 1, a first fan 2 is fixedly plugged on the side wall of the nacelle cover 1, the air outlet end of the first fan 2 is connected to the inner cavity of the nacelle cover 1, and the air inlet end of the first fan 2 is connected to the external environment. The temperature sensor 14 is used to monitor the wind turbine generator and other equipment in the nacelle cover 1. When the temperature of the wind turbine generator and other equipment is detected to rise, the first fan 2 will be started. The operation of the first fan 2 will pass cooling gas into the nacelle cover 1 to dissipate heat and cool down the wind turbine generator and other equipment. A first straight pipe 3 is fixedly connected to the inner wall of the nacelle cover 1, and the first straight pipe 3 is interconnected with the air outlet end of the first fan 2. A plurality of first desiccant agents 4 are arranged in the first straight pipe 3, and the first desiccant agents 4 perform the first drying of the cooling gas entering the first straight pipe 3. The number of the first desiccant agents 4 can be set to 1, 2, 3 or more. An arc tube 5 is arranged in communication with the end of the first straight pipe 3 away from the first fan 2 (which can be understood as the upper end), and a second straight pipe 6 is arranged in communication with the free end of the arc tube 5 (which can be understood as the right end). A plurality of second desiccant agents 7 are arranged in the second straight pipe 6, and the second desiccant agents 7 perform the second drying of the cooling gas entering the second straight pipe 6. The number of the second desiccant agents 7 can be set to 1, 2, 3 or more. It is worth noting that in one example, the first straight pipe 3, the arc tube 5 and the second straight pipe 6 are integrally formed.

[0029] In one embodiment, if Figure 2 and Figure 3 As shown, a filter screen 8 is provided in the first straight pipe 3 and / or the arc-shaped pipe 5 and / or the second straight pipe 6, and a humidity sensor 9 is provided on the filter screen 8. The humidity sensor 9 is provided between the first desiccant 4 and the second desiccant 7, and the humidity sensor 9 is used to sense the humidity of the cooling air after passing through the first desiccant 4. In this example, the humidity sensor 9 is used to monitor the humidity in the cooling gas after passing through the first desiccant 4 in real time, so as to better monitor the humidity of the cooling gas entering the cabin cover 1. In one example, the humidity sensor 9 is provided separately in the first straight pipe 3, the arc-shaped pipe 5 and the second straight pipe 6, in another example, the humidity sensor 9 is provided in two of the first straight pipe 3, the arc-shaped pipe 5 and the second straight pipe 6, and in the third example, the humidity sensor 9 is provided in all three of the first straight pipe 3, the arc-shaped pipe 5 and the second straight pipe 6.

[0030] After a long period of dehumidification, the first desiccant 4 will gradually accumulate moisture inside. As the dehumidification proceeds, the accumulation of moisture in the first desiccant 4 will reduce the drying effect of the first desiccant 4, and even make it impossible to achieve the re-drying effect. In order to solve the above problem, in one embodiment, Figure 4 and Figure 5 As shown, the ventilation and heat dissipation structure of the wind turbine cabin also includes a dehumidification mechanism 10. When the humidity sensor 9 senses that the humidity of the cooling air after passing through the first desiccant 4 is greater than a preset threshold value, the dehumidification mechanism 10 starts to dehumidify the first desiccant 4. The dehumidification mechanism 10 includes a first trumpet-shaped pipe 101 fixedly plugged into the first straight pipe 3, the first trumpet-shaped pipe 101 is connected to the inner cavity of the first straight pipe 3, and the first trumpet-shaped pipe 101 is connected to the end away from the first straight pipe 3 (which can be understood as the left end) and is connected to a third straight pipe 102. The third straight pipe 102 is fixedly plugged into the side panel of the cabin cover 1, and a suction machine 103 is arranged in the third straight pipe 102.

[0031] During operation, when the humidity sensor 9 senses that the moisture content in the cooling gas is high and the humidity is greater than a preset threshold, the humidity sensor 9 will control the start of the suction machine 103. The start of the suction machine 103 will extract the moisture in the first desiccant 4, so that the first desiccant 4 always maintains a good drying effect; in this way, when the humidity sensor 9 senses that the moisture content in the cooling gas is low and the humidity is less than a preset threshold, the suction machine 103 will be controlled to stop working, so that the suction machine 103 does not need to be in working state all the time, thereby achieving the effect of energy saving and consumption reduction.

[0032] In order to achieve a better effect of removing moisture from the first moisture absorbent 4, in one embodiment, Figure 5 As shown, the ventilation and heat dissipation structure of the wind turbine cabin also includes an isolation mechanism 11. When the dehumidification mechanism 10 dehumidifies the first desiccant 4, the isolation mechanism 11 is used to seal and surround the first desiccant 4. The isolation mechanism 11 includes a support tube 111. The upper and lower ends of the support tube 111 are fixedly connected with isolation plates 112. The two isolation plates 112 are movably plugged into the first straight pipe 3. The two isolation plates 112 are respectively arranged above and below a plurality of the first desiccant 4. Such an arrangement can seal a plurality of the first desiccant 4 when sealing. A cylinder arm 113 is fixedly arranged on the outer wall of the support tube 111. The free end of the cylinder arm 113 is fixedly connected to the driving end of the driving cylinder 114. The driving cylinder 114 is fixedly arranged on the outer wall of the second straight pipe 6.

[0033] During operation, when the humidity sensor 9 controls the operation of the suction machine 103, the driving cylinder 114 will also be started. The operation of the driving cylinder 114 will drive the cylinder arm 113 to move to the left. The leftward movement of the cylinder arm 113 will bring the isolation plate 112 to move to the left through the support tube 111. When the left end of the isolation plate 112 collides with the inner wall of the first straight pipe 3, the two isolation plates 112 seal the first desiccant 4 between them. At this time, the moisture in the first desiccant 4 can be prevented from entering the cabin cover 1 with the cooling gas, and the humid air outside the cabin cover 1 can be prevented from entering the first desiccant 4. In this way, the water amount in the suction machine 103 can be locked to remain unchanged. When dehumidification is performed by the suction machine 103, the effect of rapid dehumidification can be achieved, and the moisture in the first desiccant 4 can be extracted more cleanly and thoroughly. When the suction machine 103 can no longer extract moisture, the driving cylinder 114 drives the isolation plate 112 to move to the right through the cylinder arm 113 and the support tube 111, and stops blocking the first desiccant 4. At this time, the suction machine 103 stops working and the first fan 2 starts working.

[0034] In one example, when the isolation plate 112 blocks the first desiccant 4, the first fan 2 stops working, and when the isolation plate 112 moves to the right and stops blocking the first desiccant 4, the first fan 2 starts working.

[0035] In order to more quickly clean the moisture in the first moisture absorbent 4, in one embodiment, Figure 6 and Figure 7 As shown, the wind turbine cabin ventilation and heat dissipation structure also includes a pressurized purge mechanism 12. The pressurized purge mechanism 12 and the dehumidification mechanism 10 are respectively arranged on both sides of the first desiccant 4. It can be understood that the pressurized purge mechanism 12 is arranged on the right side of the first desiccant 4, and the dehumidification mechanism 10 is arranged on the left side of the first desiccant 4. The boost purge mechanism 12 is used to boost and purge the moisture in the first desiccant 4 from the other side (which can be understood as the right side) when the dehumidification mechanism 10 dehumidifies the first desiccant 4 from one side (which can be understood as the left side). The boost purge mechanism 12 includes a fixed cylinder 121 fixedly plugged into the first straight pipe 3, and a boost purge machine 122 is fixedly connected to the inner wall of the fixed cylinder 121. Ventilation holes are opened on the side panels of the fixed cylinder 121. The ventilation holes are used to connect the inner cavity of the cabin cover 1 and the inner cavity of the first straight pipe 3. The boost purge machine 122 extracts dry gas from the inner cavity of the cabin cover 1 through the ventilation holes. In this way, when the boost purge machine 122 is working, it is possible to avoid further increasing the moisture in the first desiccant 4.

[0036] During operation, while the suction machine 103 is working, the booster purge machine 122 will also start working. The structural design of the invention is reasonable. The suction direction of the suction machine 103 is from right to left, and the blowing direction of the booster purge machine 122 is also from right to left. In this way, the moisture in the first desiccant 4 can be quickly discharged by suction and blowing.

[0037] In one embodiment, if Figure 7 As shown, a second trumpet-shaped pipe 123 is fixedly arranged in the fixed cylinder 121, and the second trumpet-shaped pipe 123 has a first opening (which can be understood as the left end opening) and a second opening (which can be understood as the right end opening), the size of the first opening is larger than the size of the second opening, and the first opening is arranged toward the boost purge machine 122, and a sealing plug 124 is movably inserted in the second trumpet-shaped pipe 123 and the ventilation hole, and the sealing plug 124 includes a platform section and a rectangular section, and the platform section (which can be understood as a truncated cone structure) is arranged to conflict with the inner side wall of the second trumpet-shaped pipe 123. At this time, the sealing plug 124 is used to block the ventilation hole. In this stage, the humidity in the first moisture absorbent 4 is lower than the preset threshold. The sealing plug 124 is fixedly connected to a first guide support assembly 125 at one end (which can be understood as the right end) outside the second trumpet-shaped pipe 123, and the free end (which can be understood as the right end) of the first guide support assembly 125 is fixedly connected to the inner side wall of the support cylinder 111.

[0038] In the first working state, the humidity in the first desiccant 4 is lower than the preset threshold value. At this time, the first fan 2 works normally and continuously inputs dry cooling gas to the cabin cover 1; in the second working state, the humidity in the first desiccant 4 is higher than the preset threshold value. At this time, the leftward movement of the support tube 111 will push the sealing plug 124 to the left relative to the fixed tube 121 through the first guide support assembly 125. As the sealing plug 124 disengages from the second trumpet-shaped pipe 123, the vent is opened, and the dry gas in the cabin cover 1 is sucked into the boost purge machine 122 to purge the first desiccant 4 from right to left.

[0039] In one embodiment, if Figure 7As shown, the first guide support assembly 125 includes a first guide support rod 1251, a first guide support cylinder 1252 and a first guide support spring 1253. The first guide support rod 1251 is movably inserted in the first guide support cylinder 1252. The first guide support spring 1253 is wound outside the first guide support rod 1251. One end of the first guide support spring 1253 is fixedly connected to the side wall of the first guide support rod 1251. The other end of the first guide support spring 1253 is fixedly connected to the outer side wall of the first guide support cylinder 1252. The first guide support cylinder 1252 is connected to the support cylinder 111. The first guide support rod 1251 is connected to the sealing plug 124. The setting of the first guide support assembly 125 can not only support the movement of the sealing plug 124, so that the sealing plug 124 can only move in the horizontal direction, but also provide a reset force for the reset movement of the sealing plug 124.

[0040] When the suction machine 103 is not working, in order to prevent the humid air outside the cabin cover 1 from entering the first straight pipe 3 and the first moisture absorbent 4 through the first trumpet-shaped pipe 101 and the third straight pipe 102, in one embodiment, as Figure 8 As shown, the ventilation and heat dissipation of the wind turbine cabin also includes an anti-leakage mechanism 13, which includes an anti-leakage plate 131 movably inserted on the top plate of the third straight pipe 102, and the lower end of the anti-leakage plate 131 is arranged to be in contact with the inner bottom wall of the third straight pipe 102, and the upper end of the anti-leakage plate 131 is fixedly connected to a first pull-out rod 132, and the side wall of the first pull-out rod 132 is hinged with one end of a second push-pull rod 136, and the other end of the second push-pull rod 136 is hinged to a third push-pull rod 137, and the third push-pull rod 137 is movably inserted in the first straight pipe 3, and the end of the third push-pull rod 137 located in the first straight pipe 3 is fixedly connected to the isolation plate 112.

[0041] When the suction machine 103 is not working, the anti-leakage plate 131 is used to seal the third straight pipe 102 to prevent the humid air outside the cabin cover 1 from entering the first straight pipe 3; when the suction machine 103 is working, the driving cylinder 114 will also start to push the isolation plate 112 to the left. The leftward movement of the isolation plate 112 will push the first pulling rod 132 and the anti-leakage plate 131 upward through the third push-pull rod 137 and the second push-pull rod 136. At this time, the third straight pipe 102 is opened, so that the moisture in the first desiccant 4 is extracted and blown out of the cabin cover 1.

[0042] In one embodiment, if Fig. 9As shown, the anti-leakage mechanism 13 also includes a supporting slider 133, the supporting slider 133 is fixedly arranged on the side wall of the first pulling rod 132, the supporting slider 133 is slidably arranged in a supporting slide groove 134, the supporting slide groove 134 is fixedly arranged on the inner wall of the cabin cover 1, and a second guide support assembly 135 is fixedly connected to the upper end surface of the supporting slider 133, and the upper end of the second guide support assembly 135 is fixedly connected to the side wall of the supporting slide groove 134.

[0043] In one embodiment, if Fig. 9 As shown, the second guide support assembly 135 includes a second guide support rod 1351, a second guide support cylinder 1352 and a second guide support spring 1353. The second guide support rod 1351 is movably inserted in the second guide support cylinder 1352, and the second guide support spring 1353 is wound outside the second guide support rod 1351. One end of the second guide support spring 1353 is fixedly connected to the side wall of the second guide support rod 1351, and the other end of the second guide support spring 1353 is fixedly connected to the outer side wall of the second guide support cylinder 1352. The second guide support cylinder 1352 is connected to the support slider 133, and the second guide support rod 1351 is connected to the support slide groove 134.

[0044] In this embodiment, the arrangement of the combined structure of the support slider 133, the support groove 134 and the second guide support assembly 135 can not only play the role of limiting support for the movement of the first pull-out rod 132, so that the first pull-out rod 132 can only move in the vertical direction, but also provide a reset force for the reset process of the first pull-out rod 132.

[0045] It should be understood that the first desiccant 4 and the second desiccant 7 can be solid desiccant, such as activated carbon, activated alumina, molecular sieve, silica gel, lithium chloride and calcium chloride, but are not limited to solid desiccant, and are not limited to activated carbon, activated alumina, molecular sieve, silica gel, lithium chloride and calcium chloride, etc.

[0046] Although the embodiments of the present invention are described in detail above, it is obvious to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention. Moreover, the present invention described herein may have other embodiments and may be implemented or realized in a variety of ways.

Claims

1. A ventilation and heat dissipation structure for a wind turbine cabin, characterized in that: The invention comprises a nacelle cover (1), and a temperature sensor (14) arranged in the nacelle cover (1); a first fan (2) is fixedly plugged into the side wall of the nacelle cover (1); an air outlet of the first fan (2) is connected to the inner cavity of the nacelle cover (1); an air inlet of the first fan (2) is connected to the external environment; a first straight pipe (3) is fixedly connected to the inner wall of the nacelle cover (1); the first straight pipe (3) is connected to the air outlet of the first fan (2); a plurality of first desiccant agents (4) are arranged in the first straight pipe (3); an end of the first straight pipe (3) away from the first fan (2) is connected to an arc pipe (5); a free end of the arc pipe (5) is connected to a second straight pipe (6); a plurality of second desiccant agents (7) are arranged in the second straight pipe (6).

2. The ventilation and heat dissipation structure of the wind turbine cabin according to claim 1 is characterized in that: A filter screen (8) is arranged in the first straight pipe (3) and / or the arc-shaped pipe (5) and / or the second straight pipe (6), and a humidity sensor (9) is arranged on the filter screen (8). The humidity sensor (9) is arranged between the first desiccant (4) and the second desiccant (7), and the humidity sensor (9) is used to sense the humidity of the cooling air after passing through the first desiccant (4).

3. The ventilation and heat dissipation structure of the wind turbine cabin according to claim 2 is characterized in that: The invention also comprises a dehumidification mechanism (10). When the humidity sensor (9) senses that the humidity of the cooling air after passing through the first desiccant (4) is greater than a preset threshold value, the dehumidification mechanism (10) starts to dehumidify the first desiccant (4). The dehumidification mechanism (10) comprises a first trumpet-shaped pipe (101) fixedly plugged into the first straight pipe (3). The first trumpet-shaped pipe (101) is connected to the inner cavity of the first straight pipe (3). The end of the first trumpet-shaped pipe (101) away from the first straight pipe (3) is connected to a third straight pipe (102). The third straight pipe (102) is fixedly plugged into the side panel of the cabin cover (1). A suction machine (103) is arranged in the third straight pipe (102).

4. The ventilation and heat dissipation structure of the wind turbine cabin according to claim 3 is characterized in that: It also includes an isolation mechanism (11), which is used to seal and surround the first desiccant (4) when the dehumidification mechanism (10) dehumidifies the first desiccant (4). The isolation mechanism (11) includes a support tube (111), and the upper and lower ends of the support tube (111) are fixedly connected to isolation plates (112), and the two isolation plates (112) are movably plugged into the first straight pipe (3). The two isolation plates (112) are respectively arranged above and below a plurality of the first desiccant (4). A cylinder arm (113) is fixedly arranged on the outer wall of the support tube (111), and the free end of the cylinder arm (113) is fixedly connected to the driving end of a driving cylinder (114), and the driving cylinder (114) is fixedly arranged on the outer wall of the second straight pipe (6).

5. The ventilation and heat dissipation structure of the wind turbine cabin according to claim 4, characterized in that: The invention also comprises a pressurized purge mechanism (12), wherein the pressurized purge mechanism (12) and the dehumidification mechanism (10) are respectively arranged on both sides of the first desiccant (4), and the pressurized purge mechanism (12) is used to pressurize and purge the moisture in the first desiccant (4) from the other side when the dehumidification mechanism (10) dehumidifies the first desiccant (4) from one side, and the pressurized purge mechanism (12) comprises a fixed cylinder (121) fixedly plugged into the first straight pipe (3), a pressurized purge machine (122) is fixedly connected to the inner wall of the fixed cylinder (121), and a ventilation hole is opened on the side plate of the fixed cylinder (121), and the ventilation hole is used to connect the inner cavity of the cabin cover (1) with the inner cavity of the first straight pipe (3).

6. The ventilation and heat dissipation structure of the wind turbine cabin according to claim 5, characterized in that: A second trumpet-shaped pipe (123) is fixedly arranged in the fixed cylinder (121), the second trumpet-shaped pipe (123) has a first opening and a second opening, the size of the first opening is larger than the size of the second opening, the first opening is arranged toward the boost purge machine (122), a sealing plug (124) is movably inserted in the second trumpet-shaped pipe (123) and the ventilation hole, the sealing plug (124) comprises a platform section and a rectangular section, the platform section is arranged to abut against the inner wall of the second trumpet-shaped pipe (123), one end of the sealing plug (124) located outside the second trumpet-shaped pipe (123) is fixedly connected to a first guide support assembly (125), and the free end of the first guide support assembly (125) is fixedly connected to the inner wall of the support cylinder (111).

7. The ventilation and heat dissipation structure of the wind turbine cabin according to claim 6, characterized in that: The first guide support assembly (125) includes a first guide support rod (1251), a first guide support tube (1252) and a first guide support spring (1253), wherein the first guide support rod (1251) is movably inserted in the first guide support tube (1252), the first guide support spring (1253) is wound around the outside of the first guide support rod (1251), one end of the first guide support spring (1253) is fixedly connected to the side wall of the first guide support rod (1251), and the other end of the first guide support spring (1253) is fixedly connected to the outer side wall of the first guide support tube (1252), the first guide support tube (1252) is connected to the support tube (111), and the first guide support rod (1251) is connected to the sealing plug (124).

8. The ventilation and heat dissipation structure of a wind turbine cabin according to claim 5, characterized in that: The invention also comprises an anti-leakage mechanism (13), wherein the anti-leakage mechanism (13) comprises an anti-leakage plate (131) movably plugged into the top plate of the third straight pipe (102), the lower end of the anti-leakage plate (131) being arranged to abut against the inner bottom wall of the third straight pipe (102), the upper end of the anti-leakage plate (131) being fixedly connected to a first pull-out rod (132), the side wall of the first pull-out rod (132) being hinged to one end of a second push-pull rod (136), the other end of the second push-pull rod (136) being hinged to a third push-pull rod (137), the third push-pull rod (137) being movably plugged into the first straight pipe (3), and one end of the third push-pull rod (137) located in the first straight pipe (3) being fixedly connected to the isolation plate (112).

9. The ventilation and heat dissipation structure of the wind turbine cabin according to claim 8, characterized in that: The anti-leakage mechanism (13) also includes a support slider (133), the support slider (133) is fixedly arranged on the side wall of the first pull-out rod (132), the support slider (133) is slidably arranged in a support slide groove (134), the support slide groove (134) is fixedly arranged on the inner wall of the cabin cover (1), and a second guide support assembly (135) is fixedly connected to the upper end surface of the support slider (133), and the upper end of the second guide support assembly (135) is fixedly connected to the side wall of the support slide groove (134).

10. The ventilation and heat dissipation structure of the wind turbine cabin according to claim 9, characterized in that: The second guide support assembly (135) includes a second guide support rod (1351), a second guide support tube (1352) and a second guide support spring (1353). The second guide support rod (1351) is movably inserted in the second guide support tube (1352). The second guide support spring (1353) is wound and arranged outside the second guide support rod (1351). One end of the second guide support spring (1353) is fixedly connected to the side wall of the second guide support rod (1351). The other end of the second guide support spring (1353) is fixedly connected to the outer side wall of the second guide support tube (1352). The second guide support tube (1352) is connected to the support slider (133). The second guide support rod (1351) is connected to the support groove (134).

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