An assembled wind turbine cabin cover capable of reducing noise

Abstract

The present invention discloses an assembled wind turbine cabin cover capable of reducing noise, belonging to the technical field of wind turbine cabin covers, and the present invention comprises a lower shell and an upper shell for fixed assembly, and the corresponding positions of the inner walls of the lower shell and the upper shell are fixedly installed with fixings; and further comprises: a heat exchange sleeve, which is arranged on the outer side of the lower shell, the interior of the heat exchange sleeve is a cavity structure, and the upper and lower ends of the inner side of the heat exchange sleeve are respectively fixedly connected with a pressure plate through a first spring, and an elastic air bag and an elastic liquid bag are fixedly connected between the two pressure plates; a liquid tank, which is fixedly installed on the outer side of the lower shell, the inner side of the liquid tank contains coolant, and a heat exchanger is fixedly installed on the inner side of the lower shell, and two infusion tubes are connected between the heat exchanger and the liquid tank. The assembled wind turbine cabin cover capable of reducing noise can be conveniently assembled, and the connecting parts can be insulated, which further improves the assembly stability, and has good noise reduction and heat dissipation effects.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine cabin covers, and in particular to an assembled wind turbine cabin cover capable of reducing noise. Background Art

[0002] In the process of wind power generation, wind turbines are needed to convert wind energy into mechanical energy and finally into electrical energy. The nacelle cover, as an important component of the wind turbine, is the protective structure of the wind turbine, which protects the unit by covering it.

[0003] In the prior art, there is a modular wind turbine nacelle cover with publication number CN116464611A, which belongs to the technical field of wind turbines. It includes a front end, a middle end and a rear end. The two ends of the middle end are respectively connected to the front end and the rear end. The middle end includes a top cover, a bottom plate, a connecting mechanism and a plurality of side plates. The plurality of side plates are divided into two groups and are respectively located on both sides of the bottom plate. The side plates are arranged along the length direction of the top cover. The side plates are located between the bottom plate and the top cover. The two ends of the side plates are respectively connected to the bottom plate and the top cover through a connecting mechanism. The two adjacent side plates are connected through a connecting mechanism. It has the effects of facilitating the transportation of the nacelle cover, improving the utilization rate of the mold used to make the nacelle cover, and improving the work efficiency of producing the nacelle cover.

[0004] For example, a nacelle cover and a wind turbine generator set with publication number CN112145378A, a flow channel is provided in the side wall of the nacelle cover, and the flow channel includes an inlet and an outlet, a cooling medium flows into the flow channel through the inlet and flows out of the flow channel through the outlet, and the cooling medium transfers heat to the external environment through the outer surface of the side wall of the nacelle cover while flowing through the flow channel. The wind turbine generator set includes the nacelle cover. By integrating the nacelle cover with the heat dissipation system, the heat-generating components in the wind turbine generator set can be cooled at the same time, without the need to additionally set up an air-cooled radiator on the top or tail of the nacelle. The nacelle cover plays the role of a traditional air-cooled radiator while achieving the original protective function. The integrated nacelle cover has a large heat dissipation area, thereby increasing the heat dissipation area of ​​the heat dissipation system, reducing costs, saving space in the nacelle, and is not subject to transportation restrictions.

[0005] During use, the existing cabin cover is directly fixed by a single bolt structure, and the installation position of the cabin cover is mostly at high altitude, which makes the temperature difference of the cabin cover large in different time periods, so that the connection is easily loosened under the influence of temperature, thereby reducing the connection stability and having certain usage defects. Summary of the invention

[0006] The purpose of the present invention is to provide a noise-reducing assembled wind turbine nacelle to solve the problem raised in the above background technology that the connection of wind turbine nacelles on the current market is prone to shrinkage and expansion under the action of temperature difference, thereby reducing the connection stability.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: an assembled wind turbine cabin cover capable of reducing noise, comprising a lower shell and an upper shell for fixed assembly, wherein corresponding positions of the inner walls of the lower shell and the upper shell are fixedly installed with fixing members, and the outer sides of the fixing members are integrally provided with connecting members, and the connecting members on the lower shell and the upper shell are fixedly connected by fixing bolts;

[0008] It also includes: a heat exchange sleeve, which is arranged on the outer side of the lower shell, the interior of the heat exchange sleeve is a cavity structure, and the upper and lower ends of the inner side of the heat exchange sleeve are respectively fixedly connected to the pressure plate through the first spring, and an elastic air bag and an elastic liquid bag are fixedly connected between the two pressure plates, and the elastic air bag and the elastic liquid bag are separated by a telescopic plate, and the upper and lower ends of the telescopic plate are respectively fixedly connected between the two pressure plates;

[0009] The bottom plate is fixedly mounted on the inner wall of the lower end of the lower shell, the upper end of the bottom plate is connected to the mounting plate through a buffer assembly, and a movable plate is rotatably mounted on the bottom plate, and a transmission assembly is connected between the shaft of the movable plate and the mounting plate to realize the driving of the movable plate;

[0010] The liquid tank is fixedly installed on the outer side of the lower shell, the inner side of the liquid tank is filled with coolant, and a heat exchanger is fixedly installed on the inner side of the lower shell, and two liquid infusion pipes are connected between the heat exchanger and the liquid tank to realize the circulation of the coolant.

[0011] Preferably, the fixing member is arranged in an L-shaped structure, and positioning columns are symmetrically fixedly arranged on the upper end of the fixing member on the lower shell, and positioning holes are symmetrically opened on the lower end of the fixing member on the upper shell, and the positioning holes and the positioning columns are plugged and positioned.

[0012] By adopting the above technical solution, when the lower shell and the upper shell are assembled, the upper and lower sets of fixing parts fit each other, and the insertion and positioning of the positioning holes and the positioning columns can achieve effective guidance to ensure the docking accuracy of the lower shell and the upper shell.

[0013] Preferably, the heat exchange sleeve is made of heat-conducting material, and the elastic airbag is attached to the inner wall of the heat exchange sleeve, and the pressure plate connected to the upper and lower ends of the elastic airbag forms an elastic sliding structure through the first spring and the heat exchange sleeve.

[0014] By adopting the above technical solution, when the outside temperature is low, the elastic airbag will shrink under the action of temperature, and the pressure plate will slide elastically under the elastic force of the first spring, thereby squeezing the elastic liquid bag.

[0015] Preferably, the inner side of the elastic liquid sac is filled with paraffin, and the outer side of the elastic liquid sac is connected to a delivery tube, and one end of the delivery tube away from the elastic liquid sac passes through one side of the connector on the lower shell, and the delivery tube is connected to the cavity inside the connector.

[0016] By adopting the above technical solution, the melted paraffin can enter the cavity of the connector through the delivery pipe, thereby maintaining heat at the connection and preventing the connection from loosening due to excessively low temperature. At the same time, the solidified paraffin can fill the connection gap to further prevent loosening. When the temperature rises, the elastic liquid bag can recover the melted paraffin in the connector.

[0017] Preferably, the buffer assembly includes a fixed cylinder fixedly mounted on the base plate and a telescopic rod fixedly mounted on the lower surface of the mounting plate, and the fixed cylinder and the telescopic rod constitute a telescopic structure, and a second spring is connected between the fixed cylinder and the telescopic rod.

[0018] By adopting the above technical solution, the buffer component can buffer the power generation component on the mounting plate, thereby effectively reducing the noise during the operation of the equipment.

[0019] Preferably, an air delivery bag is fixedly connected between the bottom plate and the mounting plate, and exhaust ports are provided on both sides of the air delivery bag, and the exhaust ports face the heat exchanger.

[0020] By adopting the above technical solution, the movement of the mounting plate will drive the air delivery bag to compress and stretch, so that the air delivery bag can inhale and exhaust air through the exhaust port, thereby promoting the flow efficiency of the air inside the cabin cover.

[0021] Preferably, the transmission assembly includes a rack fixedly mounted on the lower surface of the mounting plate, and the outer side of the rack is meshedly connected with a gear, and the gear is fixedly mounted on the shaft of the movable plate, and two movable plates are symmetrically arranged about the bottom plate.

[0022] By adopting the above technical solution, when the mounting plate moves up and down, it can drive the rack to move synchronously, so that the rack and the gear are engaged, and then drive the gear and the movable plate to rotate, so that the gas flow inside the cabin cover can be further promoted during the swinging of the movable plate.

[0023] Preferably, an end plate is elastically rotatably mounted on one end of the movable plate close to the lower shell, and a limit plate is integrally provided on the upper surface of the end plate to realize the rotation of the end plate, and one of the infusion tubes is located on the movement trajectory of the end plate.

[0024] By adopting the above technical solution, when the movable plate rotates downward, it can drive the end plate to squeeze the liquid infusion tube, so that the liquid infusion tube can circulate and transport the coolant inside the heat exchanger.

[0025] Preferably, the lower surface of the liquid tank is inclined, and heat exchange fins are evenly arranged on the surface of the liquid tank, and the liquid tank is made of heat exchange material.

[0026] By adopting the above technical solution, the liquid tank can efficiently exchange heat with the outside air, ensuring rapid cooling of the coolant inside the liquid tank, so as to achieve continuous cooling of the interior of the cabin cover.

[0027] Compared with the prior art, the beneficial effects of the present invention are: the assembled wind turbine cabin cover capable of reducing noise can be conveniently assembled, and the connecting parts can be insulated, further improving the assembly stability, and having good noise reduction and heat dissipation effects, the specific contents are as follows;

[0028] 1. A connector, a pressure plate, an elastic air bag and an elastic liquid bag are provided. The connector is fixed by fixing bolts, so that the lower shell and the upper shell can be quickly assembled. The paraffin in the elastic liquid bag can store heat. When the outside temperature drops, the elastic air bag contracts, so that the pressure plate can squeeze the elastic liquid bag, so that the hot-melted paraffin in the elastic liquid bag is transported to the connector through the delivery pipe, thereby achieving heat insulation at the connection. When the paraffin cools, the connection gap can be filled, thereby further ensuring the assembly stability of the cabin cover;

[0029] 2. A bottom plate and a mounting plate are provided. When the power generation equipment is working, the fixing tube and the telescopic rod can be elastically extended and retracted, so that the mounting plate can reduce the vibration of the power generation equipment, thereby effectively reducing the noise of the power generation equipment when working;

[0030] 3. An air delivery bag and a movable plate are provided. With the movement of the mounting plate, the air delivery bag can be squeezed and stretched in cooperation with the bottom plate, so that the air delivery bag can inhale and blow air through the exhaust port, thereby promoting the air flow inside the cabin cover. At the same time, the rack fixed on the mounting plate will mesh with the gear, thereby driving the movable plate to rotate and swing, thereby further improving the air flow inside the cabin cover;

[0031] 4. A movable plate, an end plate and a heat exchanger are provided. As the movable plate rotates, it will drive the end plate at the end to rotate synchronously, so that the end plate can squeeze the infusion tube, thereby realizing the delivery of the coolant inside the infusion tube, and then completing the circulation of the liquid tank and the heat exchanger, thereby further improving the heat dissipation effect inside the cabin cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0033] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0034] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0035] Figure 4 This is a schematic diagram of the installation structure of the installation plate of the present invention;

[0036] Figure 5 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0037] Figure 6 This is a schematic diagram of the connection structure between the base plate and the mounting plate of the present invention;

[0038] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0039] Figure 8 It is a schematic diagram of the connection structure between the movable plate and the end plate of the present invention;

[0040] Fig. 9 It is a schematic diagram of the disassembled structure of the connecting piece of the present invention.

[0041] In the figure: 1, lower shell; 2, upper shell; 3, fixing part; 4, connecting part; 5, positioning hole; 6, positioning column; 7, fixing bolt; 8, heat exchange sleeve; 9, first spring; 10, pressure plate; 11, elastic air bag; 12, elastic liquid bag; 13, telescopic plate; 14, delivery pipe; 15, bottom plate; 16, mounting plate; 17, fixing cylinder; 18, telescopic rod; 19, second spring; 20, air bag; 21, exhaust port; 22, rack; 23, movable plate; 2301, end plate; 24, gear; 25, liquid tank; 26, heat exchanger; 27, delivery pipe. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0043] Example 1: Please refer to Figure 1-Figure 5 and Fig. 9 As shown, the existing cabin cover is only fixed by a single bolt during assembly, so that the connection is easy to loosen when subjected to temperature, thereby reducing stability. In order to solve this technical problem, the present embodiment discloses the following technical content: a prefabricated wind turbine cabin cover capable of reducing noise, comprising a lower shell 1 and an upper shell 2 for fixed assembly, wherein the lower shell 1 and the upper shell 2 are fixedly installed with fixing members 3 at corresponding positions of the inner walls thereof, and the outer side of the fixing member 3 is integrally provided with a connecting member 4, and the connecting members 4 on the lower shell 1 and the upper shell 2 are fixedly connected by fixing bolts 7;

[0044] The heat exchange sleeve 8 is arranged on the outer side of the lower shell 1. The interior of the heat exchange sleeve 8 is a cavity structure. The upper and lower ends of the inner side of the heat exchange sleeve 8 are respectively fixedly connected to the pressing plates 10 through the first spring 9, and an elastic air bag 11 and an elastic liquid bag 12 are fixedly connected between the two pressing plates 10. At the same time, the elastic air bag 11 and the elastic liquid bag 12 are separated by a telescopic plate 13, and the upper and lower ends of the telescopic plate 13 are respectively fixedly connected between the two pressing plates 10;

[0045] The fixing member 3 is arranged in an L-shaped structure, and a positioning column 6 is symmetrically fixedly arranged on the upper end of the fixing member 3 on the lower shell 1, and a positioning hole 5 is symmetrically opened on the lower end of the fixing member 3 on the upper shell 2, and the positioning hole 5 and the positioning column 6 are plugged and positioned.

[0046] The heat exchange sleeve 8 is made of heat conductive material, and the elastic airbag 11 is attached to the inner wall of the heat exchange sleeve 8 . The pressure plate 10 connected to the upper and lower ends of the elastic airbag 11 forms an elastic sliding structure through the first spring 9 and the heat exchange sleeve 8 .

[0047] The inner side of the elastic liquid sac 12 is filled with paraffin, and the outer side of the elastic liquid sac 12 is connected to a delivery tube 14, and one end of the delivery tube 14 away from the elastic liquid sac 12 passes through one side of the connector 4 on the lower shell 1, and the delivery tube 14 is connected to the cavity inside the connector 4.

[0048] The upper shell 2 is mounted on the upper part of the lower shell 1, so that the fixing parts 3 on the two parts fit each other, so that the positioning hole 5 on the upper fixing part 3 is sleeved on the positioning column 6 on the lower fixing part 3, so as to realize the guiding positioning of the lower shell 1 and the upper shell 2, and then the fixing bolts 7 penetrate and fix the two connecting parts 4 on the lower shell 1 and the upper shell 2, so as to complete the assembly of the cabin cover. When the outside temperature is high, the paraffin in the elastic liquid bag 12 can absorb heat and melt to realize heat storage, and when the outside temperature is too low, the elastic air bag 11 in the heat exchange sleeve 8 will cool down and shrink synchronously, and at this time, the pressure plate 10 will be under the elastic force of the first spring 9. The elastic liquid capsule 12 is squeezed by sliding on the inner side of the heat exchange sleeve 8, so that the hot-melt paraffin in the elastic liquid capsule 12 enters the gap of the connector 4 through the delivery pipe 14, thereby realizing the heat insulation of the connector 4 and the fixing bolt 7. When the paraffin is cooled and solidified again, the gap between the connector 4 and the fixing bolt 7 can be filled, thereby further improving the connection stability. When the external temperature rises, the paraffin melts again, and at the same time, the elastic airbag 11 expands and pushes the pressure plate 10. At this time, the pressure plate 10 will stretch the elastic liquid capsule 12, so that the elastic liquid capsule 12 absorbs the hot-melt paraffin again.

[0049] Embodiment 2: The technical content disclosed in this embodiment is a further improvement on the above embodiment 1. The existing cabin cover adopts a single shell structure, and the internal generator set will generate a lot of heat and noise when working, thereby affecting the normal operation of the generator set and the surrounding environment. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figure 3-Figure 4 and Figure 6-Figure 8 As shown, the bottom plate 15 is fixedly mounted on the inner wall of the lower end of the lower housing 1, the upper end of the bottom plate 15 is connected to the mounting plate 16 through a buffer assembly, and a movable plate 23 is rotatably mounted on the bottom plate 15, and a transmission assembly is connected between the shaft of the movable plate 23 and the mounting plate 16 to realize the driving of the movable plate 23;

[0050] The liquid tank 25 is fixedly mounted on the outer side of the lower shell 1. The inner side of the liquid tank 25 is filled with cooling liquid. A heat exchanger 26 is fixedly mounted on the inner side of the lower shell 1. Two liquid infusion pipes 27 are connected between the heat exchanger 26 and the liquid tank 25 to realize the circulation of the cooling liquid.

[0051] The buffer assembly includes a fixed cylinder 17 fixedly mounted on the bottom plate 15 and a telescopic rod 18 fixedly mounted on the lower surface of the mounting plate 16 , and the fixed cylinder 17 and the telescopic rod 18 form a telescopic structure, and a second spring 19 is connected between the fixed cylinder 17 and the telescopic rod 18 .

[0052] An air delivery bag 20 is fixedly connected between the bottom plate 15 and the mounting plate 16 , and exhaust ports 21 are opened on both sides of the air delivery bag 20 , and the exhaust ports 21 face the heat exchanger 26 .

[0053] The transmission assembly includes a rack 22 fixedly mounted on the lower surface of the mounting plate 16 , and a gear 24 is meshedly connected to the outer side of the rack 22 , and the gear 24 is fixedly mounted on the shaft of the movable plate 23 , and two movable plates 23 are symmetrically arranged about the bottom plate 15 .

[0054] An end plate 2301 is elastically rotatably mounted on one end of the movable plate 23 close to the lower shell 1 , and a limit plate is integrally provided on the upper surface of the end plate 2301 to realize the rotation of the end plate 2301 , and one of the infusion tubes 27 is located on the movement trajectory of the end plate 2301 .

[0055] The lower surface of the liquid tank 25 is inclined, and heat exchange fins are evenly arranged on the surface of the liquid tank 25, and the liquid tank 25 is made of heat exchange material.

[0056] The generator set is installed on the mounting plate 16. When the generator set is working, the fixed tube 17 and the telescopic rod 18 will elastically expand and contract, thereby reducing the vibration of the generator set and achieving effective noise reduction. When the mounting plate 16 moves, it will synchronously squeeze and stretch the air delivery bag 20, so that the air delivery bag 20 can inhale and blow air through the exhaust port 21, thereby promoting the air flow inside the cabin cover. At the same time, the mounting plate 16 will drive the rack 22 below it to move synchronously, so that the rack 22 and the gear 24 are meshed and connected, driving the gear 24 and the movable plate 23 to rotate, so that the movable plate 23 can fan the air inside the cabin cover. As the movable plate 23 rotates, it will drive the end plate 2301 at the end to move synchronously, so that the end plate 2301 can squeeze the single infusion tube 27 on the same side, thereby promoting the automatic delivery of the coolant in the infusion tube 27, ensuring the circulation and delivery of the coolant in the liquid tank 25 and the heat exchanger 26, and further improving the cooling of the inside of the cabin cover.

[0057] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembled wind turbine nacelle capable of reducing noise, comprising a lower shell (1) and an upper shell (2) that are fixedly assembled, wherein corresponding positions of the inner walls of the lower shell (1) and the upper shell (2) are fixedly mounted with fixing members (3), and the outer sides of the fixing members (3) are integrally provided with connecting members (4), and the connecting members (4) on the lower shell (1) and the upper shell (2) are fixedly connected by fixing bolts (7); It is characterized in that Also includes: A heat exchange sleeve (8) is arranged on the outside of the lower shell (1), the interior of the heat exchange sleeve (8) is a hollow structure, and the upper and lower ends of the inner side of the heat exchange sleeve (8) are respectively fixedly connected to a pressure plate (10) via a first spring (9), and an elastic air bag (11) and an elastic liquid bag (12) are fixedly connected between the two pressure plates (10), and the elastic air bag (11) and the elastic liquid bag (12) are separated by a telescopic plate (13), and the upper and lower ends of the telescopic plate (13) are respectively fixedly connected between the two pressure plates (10). The heat exchange sleeve (8) is The elastic airbag (11) is attached to the inner wall of the heat exchange sleeve (8), and the pressure plate (10) connected to the upper and lower ends of the elastic airbag (11) forms an elastic sliding structure through the first spring (9) and the heat exchange sleeve (8), the inner side of the elastic liquid bag (12) is filled with paraffin, and the outer side of the elastic liquid bag (12) is connected to a delivery pipe (14), and the end of the delivery pipe (14) away from the elastic liquid bag (12) passes through one side of the upper connecting piece (4) of the lower shell (1), and the delivery pipe (14) is connected to the cavity inside the connecting piece (4); A bottom plate (15) is fixedly mounted on the inner wall of the lower end of the lower shell (1); the upper end of the bottom plate (15) is connected to a mounting plate (16) via a buffer assembly; a movable plate (23) is rotatably mounted on the bottom plate (15); a transmission assembly is connected between the shaft of the movable plate (23) and the mounting plate (16) to drive the movable plate (23); the buffer assembly comprises a fixing cylinder (17) fixedly mounted on the bottom plate (15) and a fixing cylinder (17) fixedly mounted on the lower surface of the mounting plate (16). The telescopic rod (18) is provided with a fixed cylinder (17) and the telescopic rod (18) to form a telescopic structure, and a second spring (19) is connected between the fixed cylinder (17) and the telescopic rod (18), the transmission assembly comprises a rack (22) fixedly mounted on the lower surface of the mounting plate (16), and the outer side of the rack (22) is meshingly connected with a gear (24), and the gear (24) is fixedly mounted on the shaft of the movable plate (23), and two movable plates (23) are symmetrically arranged with respect to the bottom plate (15); The liquid tank (25) is fixedly mounted on the outer side of the lower shell (1), the inner side of the liquid tank (25) is filled with cooling liquid, and the inner side of the lower shell (1) is fixedly mounted with a heat exchanger (26), and two liquid infusion pipes (27) are connected between the heat exchanger (26) and the liquid tank (25) for realizing the circulation of the cooling liquid, the end of the movable plate (23) close to the lower shell (1) is elastically rotatably mounted with an end plate (2301), and a limit plate is integrally provided on the upper surface of the end plate (2301) for realizing the rotation limit of the end plate (2301), and one of the liquid infusion pipes (27) is located on the movement trajectory of the end plate (2301), and when the movable plate (23) rotates downward, it drives the end plate (2301) to squeeze the liquid infusion pipe (27), so that the liquid infusion pipe (27) circulates and transports the cooling liquid inside the heat exchanger (26).

2. The noise-reducing assembled wind turbine cabin cover according to claim 1, characterized in that: The fixing member (3) is arranged in an L-shaped structure, and a positioning column (6) is symmetrically fixedly arranged on the upper end of the fixing member (3) on the lower shell (1), and a positioning hole (5) is symmetrically opened on the lower end of the fixing member (3) on the upper shell (2), and the positioning hole (5) and the positioning column (6) are plugged and positioned.

3. The noise-reducing assembled wind turbine cabin cover according to claim 1, characterized in that: An air delivery bag (20) is fixedly connected between the bottom plate (15) and the mounting plate (16), and exhaust ports (21) are provided on both sides of the air delivery bag (20), and the exhaust ports (21) face the heat exchanger (26).

4. The noise-reducing assembled wind turbine cabin cover according to claim 1, characterized in that: The lower surface of the liquid box (25) is inclined, and heat exchange fins are evenly arranged on the surface of the liquid box (25), and the liquid box (25) is made of heat exchange material.

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