Generator set noise reduction air scoop device and generator set

Abstract

The utility model relates to a generator set noise reduction air scoop device, including installation side board, inner air scoop and outer air scoop, be provided with two or more than air inlet unit on the installation side board, the top of inner air scoop is installed in the inside of installation side board, the outside of inner air scoop is provided with inner sponge, the bottom of outer air scoop is installed in the inside of installation side board, the outer air scoop cover in the outside of inner air scoop, the outside of outer air scoop is provided with outer sponge. Distinguish from prior art, the utility model passes through setting up the inside and outside two layers air scoop on air inlet channel, has lengthened air inlet channel, and the noise transmission distance of engine operation in the inside of unit also lengthens, reduces noise pollution, the outside of inner air scoop is provided with inner sponge, the outside of outer air scoop is provided with outer sponge, can better absorb noise.

Description

Technical Field

[0001] This utility model relates to the field of generator set wind turbine technology, and in particular to a generator set noise reduction wind turbine device and a generator set. Background Technology

[0002] Existing technologies, such as patent publication number CN217558426U, disclose a generator set air intake hopper structure, including an air intake side plate and a drainage hopper. The air intake side plate is embedded in the generator set housing, and multiple air intake units are provided on the air intake side plate. The drainage hopper is located on one end face of the air intake side plate facing the generator set, and the drainage hopper is used to discharge rainwater from the air intake units.

[0003] In the process of realizing this utility model, the inventors discovered the following problems in the prior art:

[0004] In the existing technology, the air intake unit has mesh holes, which are relatively large and have poor noise filtering effect; there is no shielding inside the air intake channel, which causes the noise of the engine to be directly transmitted to the outside of the generator set through the air intake channel. Utility Model Content

[0005] In view of the above problems, this application provides a generator set noise reduction fan duct device and a generator set to solve the technical problem in the prior art where the lack of obstruction in the air intake duct causes the noise of the engine to be directly transmitted to the outside of the generator set through the air intake duct.

[0006] To achieve the above objectives, in a first aspect, this application provides a generator set noise reduction wind tunnel device, comprising:

[0007] The mounting side panel is provided with two or more air inlet units;

[0008] An inner air duct, the top of which is installed inside the mounting side plate, and an inner sponge provided on the outer side of the inner air duct; and

[0009] An outer air duct, the bottom of which is installed inside the mounting side plate, the outer air duct covers the outside of the inner air duct, and an outer sponge is provided on the outside of the outer air duct.

[0010] Unlike existing technologies, the technical solution of this application involves installing the top of the inner air duct inside the mounting side plate, with an inner sponge provided on the outer side of the inner air duct; the bottom of the outer air duct is installed inside the mounting side plate, covering the outer side of the inner air duct, with an outer sponge provided on the outer side of the outer air duct. In this way, the air intake duct is equipped with two layers of air ducts, which lengthens the air intake duct and also increases the noise transmission distance of the engine inside the unit, reducing noise pollution; the inner sponge on the outer side of the inner air duct and the outer sponge on the outer side of the outer air duct can better absorb noise.

[0011] In one embodiment of this utility model, the inner air duct includes a first mounting plate, a first inclined plate, a first vertical plate, a first horizontal plate, and a second vertical plate. The bottom of the first mounting plate is connected to one end of the first inclined plate, the other end of the first inclined plate is connected to the top of the first vertical plate, the bottom of the first vertical plate is connected to one end of the first horizontal plate, and the other end of the first horizontal plate is connected to the bottom of the second vertical plate.

[0012] Thus, the first mounting plate facilitates the installation of the inner air duct, and multiple bolts fix the first mounting plate to the inside of the mounting side plate. The first inclined plate and the first vertical plate can change the wind direction, and the first vertical plate, the first horizontal plate, and the second vertical plate facilitate the installation of the inner sponge.

[0013] In one embodiment of this utility model, the first vertical plate and the second vertical plate are arranged parallel to each other, the length of the first vertical plate in the vertical direction is greater than the length of the second vertical plate in the vertical direction, and the bottom of the inner sponge is located between the first vertical plate and the second vertical plate.

[0014] Thus, the bottom of the inner sponge is easily fixed by the cooperation of the first vertical plate, the first horizontal plate and the second vertical plate, and the inner wall of the inner sponge is attached to the first inclined plate and the first vertical plate.

[0015] In one embodiment of this utility model, the cross-sectional shape of the inner sponge matches the cross-sectional shape of the first inclined plate and the first vertical plate.

[0016] In this way, the inner sponge can be set along the first inclined plate and the first vertical plate, which facilitates the installation of the inner sponge.

[0017] In one embodiment of this utility model, the external air duct includes a second mounting plate, a third horizontal plate, a second inclined plate, a third vertical plate, a fourth horizontal plate, and a fourth vertical plate. The second mounting plate is connected to one end of the third horizontal plate, the other end of the third horizontal plate is connected to the bottom of the second inclined plate, the top of the second inclined plate is connected to the bottom of the third vertical plate, the top of the third vertical plate is connected to one end of the fourth horizontal plate, and the other end of the fourth horizontal plate is connected to the top of the fourth vertical plate.

[0018] Thus, the second mounting plate facilitates the installation of the external wind duct, and multiple bolts can be used to fix the second mounting plate to the inside of the mounting side plate. The second inclined plate and the third vertical plate can change the wind direction, and the third vertical plate, the fourth horizontal plate, and the fourth vertical plate facilitate the installation of the external sponge.

[0019] In one embodiment of this utility model, the third vertical plate and the fourth vertical plate are arranged parallel to each other, the length of the third vertical plate in the vertical direction is greater than the length of the fourth vertical plate in the vertical direction, and the top of the outer sponge is located between the third vertical plate and the fourth vertical plate.

[0020] Thus, the top of the outer sponge is easily fixed by the cooperation of the third vertical plate, the fourth horizontal plate, and the fourth vertical plate, and the inner wall of the outer sponge is attached to the second inclined plate and the third vertical plate.

[0021] In one embodiment of this utility model, the cross-sectional shape of the outer sponge matches the cross-sectional shape of the third vertical plate and the second inclined plate.

[0022] In this way, the outer sponge can be set along the third vertical plate and the second inclined plate, which facilitates the installation of the outer sponge.

[0023] In one embodiment of this utility model, a pressure plate is provided on each of the left and right sides of the outer sponge, and the cross-sectional shape of the pressure plate matches the cross-sectional shape of the outer sponge.

[0024] In this way, the left and right sides of the outer sponge can be fixed by two pressure plates. The pressure plates are L-shaped. One side of the pressure plate is fixed to the side baffle of the outer air duct by two fasteners, and the other side of the pressure plate is fixed to the outer side of the outer sponge.

[0025] In one embodiment of this utility model, the air inlet unit is provided with two or more elongated openings, which are arranged in a row.

[0026] In this way, two or more elongated openings form an air inlet, which has a better noise reduction effect compared to a mesh opening with larger holes.

[0027] To achieve the above objectives, in a second aspect, the inventors provide a generator set including a generator set noise reduction fan device as described in any one of the above.

[0028] Unlike existing technologies, the generator set of this application has an inner and outer layer of air ducts in the air intake channel, which lengthens the air intake channel and also lengthens the noise transmission distance of the engine inside the unit, reducing noise pollution; the outer side of the inner air duct is provided with an inner sponge, and the outer side of the outer air duct is provided with an outer sponge, which can better absorb noise.

[0029] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0030] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0031] In the accompanying drawings of the instruction manual:

[0032] Figure 1 This is a front structural diagram of a generator set noise reduction fan bucket device according to an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the rear structure of a generator set noise reduction fan duct device according to an embodiment of this application;

[0034] Figure 3 This is a perspective view of the inner and outer air ducts according to an embodiment of this application;

[0035] Figure 4 This is an exploded schematic diagram of the inner and outer air ducts according to an embodiment of this application;

[0036] Figure 5 This is a front view of the inner and outer air ducts according to an embodiment of this application;

[0037] Figure 6 for Figure 5 A cross-sectional schematic diagram of AA in the middle;

[0038] Figure 7 This is a schematic diagram of the internal air duct structure according to one embodiment of this application;

[0039] Figure 8 This is a schematic diagram of the structure of the external wind duct according to an embodiment of this application.

[0040] The reference numerals used in the above figures are explained as follows:

[0041] 1. Install side panel; 11. Air inlet unit; 111. Long vent.

[0042] 2. Inner air duct; 21. Inner sponge; 22. First mounting plate; 23. First inclined plate; 24. First vertical plate; 25. First horizontal plate; 26. Second vertical plate.

[0043] 3. External air duct; 31. External sponge; 32. Second mounting plate; 33. Third horizontal plate; 34. Second inclined plate; 35. Third vertical plate; 36. Fourth horizontal plate; 37. Fourth vertical plate; 38. Pressure plate; 39. Side baffle. Detailed Implementation

[0044] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0045] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0046] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0047] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, X and / or Y means: X exists, Y exists, and X and Y exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0048] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0049] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0050] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0051] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0052] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0053] In the existing technology, the air intake unit has mesh holes, which are relatively large and have poor noise filtering effect; there is no shielding inside the air intake channel, which causes the noise of the engine to be directly transmitted to the outside of the generator set through the air intake channel.

[0054] In view of this, this application provides a generator set noise reduction duct device and a generator set, including a mounting side plate 1, an inner duct 2, and an outer duct 3. The mounting side plate 1 is provided with two or more air intake units 11. The top of the inner duct 2 is installed inside the mounting side plate 1, and an inner sponge 21 is provided on the outer side of the inner duct 2. The bottom of the outer duct 3 is installed inside the mounting side plate 1, and the outer duct 3 covers the outer side of the inner duct 2. An outer sponge 31 is provided on the outer side of the outer duct 3. Thus, the air intake channel is provided with two layers of ducts, which lengthens the air intake channel and also lengthens the noise transmission distance of the engine inside the unit, reducing noise pollution. The inner sponge 21 on the outer side of the inner duct 2 and the outer sponge 31 on the outer side of the outer duct 3 can better absorb noise.

[0055] According to some embodiments of this application, please refer to Figures 1 to 8 This embodiment relates to a noise reduction fan device for a generator set, including a mounting side plate 1, an inner fan 2, and an outer fan 3. The mounting side plate 1 is provided with two or more air inlet units 11. The top of the inner fan 2 is installed inside the mounting side plate 1, and an inner sponge 21 is provided on the outside of the inner fan 2. The bottom of the outer fan 3 is installed inside the mounting side plate 1, and the outer fan 3 covers the outside of the inner fan 2. An outer sponge 31 is provided on the outside of the outer fan 3.

[0056] In some embodiments, four air inlet units 11 are provided on the mounting side plate 1. The four air inlet units 11 are arranged in a vertical direction. In other embodiments, two or more air inlet units 11 may be arranged in a horizontal direction. All of these are within the protection scope of this application.

[0057] In some embodiments, the inner sponge 21 is attached to the outside of the inner air duct 2. The inner sponge 21 can also be fixed to the outside of the inner air duct 2 by other means, such as fasteners, all of which are within the scope of protection of this application.

[0058] In some embodiments, both the outer air hopper 3 and the inner air hopper 2 are made of metal. The outer air hopper 3 is larger in shape and size than the inner air hopper 2. The outer sponge 31 is pasted on the outside of the outer air hopper 3. The outer sponge 31 can also be fixed to the outside of the outer air hopper 3 by other means, such as fasteners. All of these are within the protection scope of this application.

[0059] The inner sponge 21 and the outer sponge 31 are sound-absorbing sponges. The principle is a conventional technical means, and the specific principle will not be elaborated here. The external wind first passes through the inner wind hopper 2 and then through the outer wind hopper 3 before entering the generator set. Conversely, the internal wind first passes through the outer wind hopper 3 and then through the inner wind hopper 2 before being discharged from the generator set.

[0060] In this embodiment, the top of the inner air hopper 2 is installed inside the mounting side plate 1, and an inner sponge 21 is provided on the outside of the inner air hopper 2; the bottom of the outer air hopper 3 is installed inside the mounting side plate 1, and the outer air hopper 3 covers the outside of the inner air hopper 2, and an outer sponge 31 is provided on the outside of the outer air hopper 3.

[0061] Thus, the air intake duct is equipped with two layers of air ducts, which lengthens the air intake duct and at the same time lengthens the noise transmission distance of the engine inside the unit, reducing noise pollution; the outer side of the inner air duct 2 is equipped with an inner sponge 21, and the outer side of the outer air duct 3 is equipped with an outer sponge 31, which can better absorb noise.

[0062] According to some embodiments of this application, optionally, such as Figure 6 and Figure 7 As shown, the inner air duct 2 includes a first mounting plate 22, a first inclined plate 23, a first vertical plate 24, a first horizontal plate 25, and a second vertical plate 26. The bottom of the first mounting plate 22 is connected to one end of the first inclined plate 23, the other end of the first inclined plate 23 is connected to the top of the first vertical plate 24, the bottom of the first vertical plate 24 is connected to one end of the first horizontal plate 25, and the other end of the first horizontal plate 25 is connected to the bottom of the second vertical plate 26.

[0063] Thus, the first mounting plate 22 facilitates the installation of the inner air duct 2, and the first mounting plate 22 is fixed to the inner side of the mounting side plate 1 by multiple bolts. The wind direction can be changed by the first inclined plate 23 and the first vertical plate 24. The first vertical plate 24, the first horizontal plate 25 and the second vertical plate 26 facilitate the installation of the inner sponge 21.

[0064] According to some embodiments of this application, optionally, the first vertical plate 24 and the second vertical plate 26 are arranged in parallel, the length of the first vertical plate 24 in the vertical direction is greater than the length of the second vertical plate 26 in the vertical direction, and the bottom of the inner sponge 21 is located between the first vertical plate 24 and the second vertical plate 26.

[0065] Thus, the bottom of the inner sponge 21 is easily fixed by the cooperation of the first vertical plate 24, the first horizontal plate 25 and the second vertical plate 26, and the inner wall of the inner sponge 21 is attached to the first inclined plate 23 and the first vertical plate 24.

[0066] According to some embodiments of this application, optionally, the cross-sectional shape of the inner sponge 21 matches the cross-sectional shape of the first inclined plate 23 and the first vertical plate 24.

[0067] Thus, the inner sponge 21 can be set along the first inclined plate 23 and the first vertical plate 24, which facilitates the installation of the inner sponge 21.

[0068] According to some embodiments of this application, optionally, such as Figure 6 and Figure 8As shown, the external air duct 3 includes a second mounting plate 32, a third horizontal plate 33, a second inclined plate 34, a third vertical plate 35, a fourth horizontal plate 36, and a fourth vertical plate 37. The second mounting plate 32 is connected to one end of the third horizontal plate 33, the other end of the third horizontal plate 33 is connected to the bottom of the second inclined plate 34, the top of the second inclined plate 34 is connected to the bottom of the third vertical plate 35, the top of the third vertical plate 35 is connected to one end of the fourth horizontal plate 36, and the other end of the fourth horizontal plate 36 is connected to the top of the fourth vertical plate 37.

[0069] The external air duct 3 also includes side baffles 39 on both sides, which are connected to the second mounting plate 32, the third horizontal plate 33, the second inclined plate 34, and the third vertical plate 35 respectively.

[0070] Thus, the second mounting plate 32 facilitates the installation of the external wind duct 3, and the second mounting plate 32 can be fixed to the inside of the mounting side plate 1 by multiple bolts. The wind direction can be changed by the second inclined plate 34 and the third vertical plate 35, and the external sponge 31 can be installed by the third vertical plate 35, the fourth horizontal plate 36 and the fourth vertical plate 37.

[0071] According to some embodiments of this application, optionally, the third vertical plate 35 and the fourth vertical plate 37 are arranged in parallel, the length of the third vertical plate 35 in the vertical direction is greater than the length of the fourth vertical plate 37 in the vertical direction, and the top of the outer sponge 31 is located between the third vertical plate 35 and the fourth vertical plate 37.

[0072] Thus, the top of the outer sponge 31 is easily fixed by the cooperation of the third vertical plate 35, the fourth horizontal plate 36 and the fourth vertical plate 37, and the inner wall of the outer sponge 31 is attached to the second inclined plate 34 and the third vertical plate 35.

[0073] According to some embodiments of this application, optionally, the cross-sectional shape of the outer sponge 31 matches the cross-sectional shape of the third vertical plate 35 and the second inclined plate 34.

[0074] Thus, the outer sponge 31 can be set along the third vertical plate 35 and the second inclined plate 34, which facilitates the installation of the outer sponge 31.

[0075] According to some embodiments of this application, optionally, such as Figure 4 As shown, a pressure plate 38 is provided on the left and right sides of the outer sponge 31, and the cross-sectional shape of the pressure plate 38 matches the cross-sectional shape of the outer sponge 31.

[0076] One side of the pressure plate 38 is fixed to the side baffle 39 of the outer air duct 3 by two fasteners, and the other side of the pressure plate 38 is fixed to the outer side of the outer sponge 31 by glue, so that both sides of the outer sponge 31 can be fixed.

[0077] Thus, the two pressure plates 38 can fix the left and right sides of the outer sponge 31. The pressure plates 38 have an L-shaped structure. One side of the pressure plate 38 is fixed to the side baffle 39 of the outer air duct 3 by two fasteners, and the other side of the pressure plate 38 is fixed to the outer side of the outer sponge 31.

[0078] According to some embodiments of this application, optionally, such as Figure 1 As shown, the air inlet unit 11 is provided with two or more elongated openings 111, and the two or more elongated openings 111 are arranged in a row.

[0079] Thus, two or more elongated openings 111 form an air inlet. The opening area of ​​the elongated openings 111 is smaller than that of the mesh holes in the prior art. Compared with the mesh holes with larger openings, the elongated openings 111 have a better noise reduction effect.

[0080] This embodiment also relates to a generator set, including a generator set noise reduction wind bucket device as described in any of the above.

[0081] The generator set in this embodiment is a diesel generator set, including a diesel engine (power source) and a generator (electrical energy conversion device). The diesel engine converts the heat energy of diesel combustion into mechanical energy to provide rotational power. The generator is driven by the diesel engine and converts mechanical energy into electrical energy through electromagnetic induction.

[0082] In this embodiment, the generator set has two layers of air ducts, an inner and an outer layer, which lengthens the air intake passage and also lengthens the noise transmission distance of the engine inside the unit, thus reducing noise pollution. The outer side of the inner air duct 2 is provided with an inner sponge 21, and the outer side of the outer air duct 3 is provided with an outer sponge 31, which can better absorb noise.

[0083] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A noise reducing wind scoop apparatus for a generator set, characterized by, include: The mounting side panel is provided with two or more air inlet units; An inner air duct, the top of which is installed inside the mounting side plate, and an inner sponge is provided on the outer side of the inner air duct; as well as An outer air duct, the bottom of which is installed inside the mounting side plate, the outer air duct covers the outside of the inner air duct, and an outer sponge is provided on the outside of the outer air duct.

2. The genset noise reduction wind scoop apparatus of claim 1, wherein, The inner air duct includes a first mounting plate, a first inclined plate, a first vertical plate, a first horizontal plate, and a second vertical plate. The bottom of the first mounting plate is connected to one end of the first inclined plate, the other end of the first inclined plate is connected to the top of the first vertical plate, the bottom of the first vertical plate is connected to one end of the first horizontal plate, and the other end of the first horizontal plate is connected to the bottom of the second vertical plate.

3. The genset noise reduction wind scoop apparatus of claim 2, wherein, The first vertical plate and the second vertical plate are arranged parallel to each other. The length of the first vertical plate in the vertical direction is greater than the length of the second vertical plate in the vertical direction. The bottom of the inner sponge is located between the first vertical plate and the second vertical plate.

4. The genset noise reduction wind scoop apparatus of claim 3, wherein, The cross-sectional shape of the inner sponge matches the cross-sectional shape of the first inclined plate and the first vertical plate.

5. The genset noise-reduction wind-tunnel apparatus of claim 1, wherein, The external air duct includes a second mounting plate, a third horizontal plate, a second inclined plate, a third vertical plate, a fourth horizontal plate, and a fourth vertical plate. The second mounting plate is connected to one end of the third horizontal plate, the other end of the third horizontal plate is connected to the bottom of the second inclined plate, the top of the second inclined plate is connected to the bottom of the third vertical plate, the top of the third vertical plate is connected to one end of the fourth horizontal plate, and the other end of the fourth horizontal plate is connected to the top of the fourth vertical plate.

6. The generator set noise reduction wind tunnel device according to claim 5, characterized in that, The third vertical plate is arranged parallel to the fourth vertical plate, and the length of the third vertical plate in the vertical direction is greater than the length of the fourth vertical plate in the vertical direction. The top of the outer sponge is located between the third vertical plate and the fourth vertical plate.

7. The genset noise reduction wind scoop apparatus of claim 6, wherein, The cross-sectional shape of the outer sponge matches the cross-sectional shape of the third vertical plate and the second inclined plate.

8. The genset noise reduction wind scoop apparatus of claim 7, wherein, A pressure plate is provided on each of the left and right sides of the outer sponge, and the cross-sectional shape of the pressure plate matches the cross-sectional shape of the outer sponge.

9. The genset noise-reduction wind-tunnel apparatus of claim 1, wherein, The air inlet unit is provided with two or more elongated openings, which are arranged in a row.

10. A generator set characterized by, Includes the generator set noise reduction wind bucket device as described in any one of claims 1 to 9.

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