Silencing device for generator set container and mute container

Abstract

The silencing device for the generator set container comprises a frame and a silencing piece assembly installed on the frame, and the silencing piece assembly comprises a plurality of fixed silencing grid plates and at least one movable silencing grid plate. And the movable silencing grid plate is detachably mounted on the frame. When the silencing device is applied, a maintainer can obtain a passage only by disassembling the movable silencing grid plate, and the maintainer enters and exits through the passage to complete corresponding maintenance work. The movable silencing grid plate is simple and convenient to disassemble and assemble, the working efficiency of maintenance personnel can be improved, the maintenance time is saved, and the physical output of the maintenance personnel is reduced. The utility model also provides a box-type generator set device.

Description

Technical Field

[0001] This utility model relates to the field of machinery, specifically to a container for generator sets and its noise reduction device. Background Technology

[0002] Box-type generator sets are widely used in various fields, such as power, communications, transportation, and industry. In the power and communications sectors, box-type generator sets serve as backup power sources, providing emergency power when the main power source fails. The advantages of box-type generator sets lie in their high efficiency and low operating costs. The generator is the core of the entire power generation unit, and its operation often generates significant noise. Excessive noise can affect the daily lives of people in buildings and, in severe cases, negatively impact their health.

[0003] Existing generator sets are integrated into enclosures. To reduce the noise impact of diesel generator sets on people, noise reduction devices are typically installed inside the enclosure. These devices attenuate the generator noise, minimizing its transmission through the enclosure. In existing box-type generator sets, the noise reduction devices are usually installed at the air inlet or outlet of the enclosure. High-power generators in box-type generator sets require frequent maintenance or repair after prolonged operation. When maintenance personnel need to repair or perform routine maintenance, they must enter the enclosure. To access the enclosure, the entire noise reduction device must be removed to create an entrance. Due to the large size of existing box-type generator sets and the bulky noise reduction device, removing the device is extremely cumbersome, incurring significant time and labor costs. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted:

[0006] A noise reduction device for a generator set container includes a frame and a noise reduction plate assembly mounted on the frame. The noise reduction plate assembly includes a plurality of fixed noise reduction grilles and at least one movable noise reduction grille. The movable noise reduction grille is detachably mounted on the frame.

[0007] In one embodiment, the movable noise-absorbing grille and the fixed noise-absorbing grille are arranged alternately side by side.

[0008] In one embodiment, the sound-absorbing grille is arranged parallel to the side frame of the frame.

[0009] Furthermore, the noise reduction device also includes a track component installed at the frame position corresponding to the movable noise reduction grille, which allows the movable noise reduction grille to move, and a limiting component for restricting the movable noise reduction grille from sliding out of the frame.

[0010] Furthermore, the limiting component includes at least one detachable baffle located on the first end side of the movable silencing grid plate. The detachable baffle is fixedly installed on two fixed silencing grid plates adjacent to the movable silencing grid plate or fixed on one of the fixed silencing grid plates adjacent to the movable silencing grid plate and the frame.

[0011] Furthermore, the limiting component is an extension track extending from one end of the track component along a track extension direction perpendicular to the track component.

[0012] Preferably, the limiting component further includes an openable locking component located on the second end side of the movable noise-absorbing grid plate. The locking component is fixed to two fixed noise-absorbing grid plates adjacent to the movable noise-absorbing grid plate or to one fixed noise-absorbing grid plate adjacent to the movable noise-absorbing grid plate and the frame, for retaining the movable noise-absorbing grid plate in the track component.

[0013] Furthermore, the locking component is a latch, buckle, pin, or quick-release device.

[0014] Preferably, the sound-absorbing grid plate includes a hollow rectangular body made of a perforated metal plate and sound-absorbing cotton located in the rectangular body.

[0015] This utility model also provides a silent container, including a container body and an air inlet area, a generator set area and an exhaust area disposed in the container body. The generator set is installed in the generator set area, and the aforementioned sound-absorbing device, suitable for the height of the container body, is disposed in the air inlet area and the exhaust area.

[0016] Compared with the prior art, the advantages of this utility model are as follows:

[0017] The noise reduction device for generator set containers provided by this utility model firstly forms a noise reduction grid array by setting multiple noise reduction grids in the frame. The noise reduction device has the function of noise reduction.

[0018] Secondly, by setting at least one movable sound-absorbing plate among multiple sound-absorbing plates, the movable sound-absorbing plate can be disassembled and reinstalled. Thus, when the sound-absorbing device of this utility model is installed in a movable building or a fixed house, a passage for maintenance personnel to enter the movable building or fixed house can be formed by removing the movable sound-absorbing plate.

[0019] This utility model also provides a silent container. By installing a silencer in the air intake and exhaust areas, a silencer grid array is formed in each air intake and exhaust area. The noise generated by the generator set during operation is absorbed by the silencer grid array as it passes through the array, thereby reducing the noise transmitted from the inside of the containerized generator set and reducing the impact of the operating noise of the containerized generator set on the outside world.

[0020] When the generator set requires maintenance or repair, maintenance personnel only need to remove the movable silencer grille to obtain a passage for accessing the enclosure and thus enabling maintenance or repair of other equipment inside. The removal and installation of one or more movable silencer grilles is simple and convenient, improving maintenance personnel's work efficiency, saving maintenance time, and reducing physical exertion.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0023] Figure 1 This is a front structural diagram of the silencing device of this utility model;

[0024] Figure 2 This is a side view of the frame structure of the silencing device of this utility model;

[0025] Figure 3 This is a schematic diagram of one embodiment of the track component of this utility model;

[0026] Figure 4a for Figure 1 Enlarged view of the M-section;

[0027] Figure 4b for Figure 4a A schematic diagram of the structure after the movable sound-absorbing grille has been removed;

[0028] Figure 5a This is a top view of one embodiment of the silencing device of this utility model.

[0029] Figure 5b This is a top view of the movable noise-reducing grille of the noise-reducing device of this utility model after disassembly.

[0030] Figure 6 This is a top view of another embodiment of the silencing device of this utility model;

[0031] Figure 7 This is a top view of another embodiment of the silencing device of this utility model;

[0032] Figure 8a A schematic diagram of one embodiment of the locking component of the silencing device of this utility model;

[0033] Figure 8b This is a schematic diagram of another configuration of the locking component of the silencing device of this utility model;

[0034] Figure 9a This is a schematic diagram of another embodiment of the track component of this utility model;

[0035] Figure 9b This is a schematic diagram of another embodiment of the track component of this utility model;

[0036] Figure 9c This is a schematic diagram of another embodiment of the track component of this utility model;

[0037] Figure 10 This is a schematic diagram of another embodiment of the silencing device of this utility model;

[0038] Figure 11 This is a schematic diagram of the sound-absorbing grid structure of the sound-absorbing device of this utility model;

[0039] Figure 12 This is a structural schematic diagram of the silent container of this utility model. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model and should not be construed as limiting this utility model.

[0041] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or components, nor does it exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0042] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0043] like Figures 1 to 12 As shown, the present invention provides a noise reduction device 100 for a generator set container, comprising a frame 1 and a noise reduction plate assembly 2 mounted on the frame 1. The noise reduction plate assembly 2 includes a plurality of noise reduction grilles 20. Each noise reduction grille 20 includes a plurality of fixed noise reduction grilles 20b and at least one movable noise reduction grille 20a. The fixed noise reduction grilles 20b are fixedly mounted on the frame 1, and the movable noise reduction grilles 20a are detachably mounted on the frame 1.

[0044] Combination Figure 1 and Figure 2As shown, the frame 1 includes a top frame 10, a bottom frame 12, and a pair of side frames 13 connecting the top frame 10 and the bottom frame 12. The frame 1 is a hollow cuboid structure, and the width of the side frames 13 (the thickness of the frame 1) is equal to or greater than the width of the sound-absorbing grille 20. The sound-absorbing plate assembly 2 includes a plurality of sound-absorbing grilles 20 mounted on the top frame 10 and the bottom frame 12 and arranged side by side between the two side frames 13. There is a predetermined spacing between every two adjacent sound-absorbing grilles 20, which can be set as needed. Optionally, the plurality of sound-absorbing grilles 20 are arranged at equal intervals. That is, the sound-absorbing grilles 20 are arranged at equal intervals in the direction perpendicular to the top frame 10 and the bottom frame 12 (i.e., longitudinal direction), and there is a certain space between every two sound-absorbing grilles 20. The frame 1 has a certain thickness, and the sound-absorbing grilles 20 have a certain width. The sound-absorbing grilles 20 extend along the thickness direction of the frame 1, and usually the width of the sound-absorbing grilles 20 is equal to the thickness of the frame 1.

[0045] A track component 14 is installed on the inner side of the frame 1 at the position where the movable noise-absorbing grille 20a is installed. The track component 14 is used to accommodate the movable noise-absorbing grille 20a and facilitate the installation or removal of the movable noise-absorbing grille 20a. Optionally, refer to Figure 1 , Figure 3 , Figure 4a , Figure 4b The track component 14 is a straight component with a groove structure, including a main track 141 for the movable noise-absorbing grille 20a to slide on, and flanges 142 protruding on both sides of the main track 141. The track component 14 has slots 140 at both ends. The movable noise-absorbing grille 20a is typically installed or removed from one end of the track component 14 through a slot 140. The main track 141 supports the movable noise-absorbing grille 20a and facilitates its insertion and removal within it. The flanges 142 prevent the movable noise-absorbing grille 20a from shifting left or right within the main track 141. The track component 14 can be installed at corresponding positions on the top frame 10 and / or the bottom frame 12, typically arranged vertically. Noisy grilles 20b installed in positions not occupied by the track component 14 within the frame 1 are fixed and non-removable.

[0046] In an optional embodiment, the silencing device described in this application includes a movable silencing grille 20a. In this embodiment, the movable silencing grille 20a is positioned adjacent to one of the side frames 13 of the frame 1. At opposite positions on the top frame 10 and bottom frame 12 of the frame 1 where the movable silencing grille 20a is mounted, track components 14 are respectively provided, and the two track components 14 together define the insertion positions of the upper and lower ends of the movable silencing grille 20a.

[0047] Since the movable sound-absorbing grille 20a has a certain distance from the side frame 13 and the adjacent fixed sound-absorbing grille 20b, therefore, reference Figure 5a and Figure 5b When the movable silencing grille 20a is removed, the space between the side frame 13 and its nearest fixed silencing grille 20b can form an active channel 30 for maintenance personnel to pass through the silencing device 100 of this application.

[0048] The two ends of the fixed sound-absorbing grille 20b can be fixed to the top frame 10 and the bottom frame 12 of the frame 1 by welding or screws.

[0049] Optionally, the position of the movable sound-absorbing grille 20a can be adaptively adjusted depending on the location of the maintenance inlet / outlet in the enclosure in which the sound-absorbing device 100 is applied. For example, the movable sound-absorbing grille 20a and the fixed sound-absorbing grille 20b can be arranged alternately side by side. Furthermore, when the spacing between the sound-absorbing grilles 20 is small (i.e., the sound-absorbing grilles 20 are arranged relatively densely), such as... Figure 6 As shown, two or more adjacent movable noise reduction grilles 20a can be set so that after these movable noise reduction grilles 20a are removed, there is enough space for maintenance personnel to enter and exit freely.

[0050] Optionally, such as Figure 6 and Figure 7 As shown, depending on the different entry requirements of maintenance personnel, the movable sound-absorbing grille 20a can also be set between any two fixed sound-absorbing grilles 20b.

[0051] In addition, when multiple movable sound-absorbing grilles 20a are installed, maintenance personnel can choose to remove any one of the movable sound-absorbing grilles 20a to obtain a maintenance access channel 30.

[0052] After the movable noise-absorbing grille 20a is inserted into the track component 14, in order to keep the movable noise-absorbing grille 20a in the track component 14, the noise-absorbing device 100 is also provided with a limiting component to prevent the movable noise-absorbing grille 20a from sliding out of the frame 1.

[0053] Figure 1 An embodiment is shown in which a movable sound-absorbing grille 20a is provided adjacent to the side frame 13. For example... Figure 1As shown, a detachable baffle 4 is respectively provided near the top frame 10 and the bottom frame 12 of the movable sound-absorbing grille 20a. The detachable baffle 4 is perpendicular to the length direction of the sound-absorbing grille 20a, with one end fixed to the side frame 13 and the other end fixed to the fixed sound-absorbing grille 20b adjacent to the movable sound-absorbing grille 20a. The two ends of the detachable baffle 4 can be assembled and fixed to the side frame 13 and the fixed sound-absorbing grille 20b by means of, for example, mounting holes and screws, or by means of a snap-fit ​​structure. This application does not limit the scope of the assembly.

[0054] The removable baffle 4 can be removed by unscrewing the screws or unlocking the clips. Therefore, when it is necessary to remove the movable silencing grille 20a from the track component 14, the removable baffle 4 can be removed from the side frame 13 and the fixed silencing grille 20b, and the movable silencing grille 20a can be pulled out from the slot 140 at one end of the track component 14.

[0055] Figure 1 The illustration shows a configuration with two removable baffles 4. In practice, the number of removable baffles 4 can be determined based on the length of the noise-reducing grille 20 (i.e., the dimension of the removable baffle 4 between the top frame 10 and the bottom frame 12) and its fixed position. Alternatively, only one removable baffle 4 may be provided, for example, positioned midway between the top frame 10 and the bottom frame 12. In other embodiments, three or more removable baffles 4 may be provided to ensure more stable retention of the movable noise-reducing grille 20a within the track component 14.

[0056] In embodiments where multiple movable noise-absorbing grilles 20a are provided, each movable noise-absorbing grille 20a is provided with a corresponding removable baffle 4. When the movable noise-absorbing grilles 20a are arranged adjacent to each other, one or more removable baffles 4 can be provided for these adjacent movable noise-absorbing grilles 20a.

[0057] In the above embodiments, one or more removable baffles 4 may be provided at both ends of the movable noise-absorbing grid plate 20a along the main track extension direction of the track component 14.

[0058] Optionally, in another embodiment, the limiting component may further be configured to include the aforementioned removable baffle 4 provided at the first end of the movable noise-absorbing grille 20a along the main track extension direction of the track component 14, and an openable and closable locking component 5 provided at the second end of the movable noise-absorbing grille 20a, such as... Figure 8a As shown.

[0059] The locking component 5 includes a crossbar 51 and a latch 52, wherein the crossbar 51 can be engaged in the latch 52. In an embodiment where the movable noise-absorbing grille 20a is disposed adjacent to the side frame 13, one end of the crossbar 51 is rotatably fixed to the side frame 13 of the frame 1 or rotatably fixed to the fixed noise-absorbing grille 20b; and the latch 52 is correspondingly fixed to the fixed noise-absorbing grille 20b or the side frame 13 of the frame 1. Normally, the crossbar 51 of the locking component 5 is engaged in the latch 52, thereby preventing the movable noise-absorbing grille 20a from sliding out of the track component 14.

[0060] Figure 8a An example is shown where one end of the crossbar 51 is rotatably fixed to the side frame 13, and the latch 52 is fixed to the fixed sound-absorbing grille 20b. When the crossbar 51 of the locking component 5 is rotated to be parallel to the side frame 13, as... Figure 8b As shown, the movable noise-absorbing grille 20a can be removed from the track component 14.

[0061] In other embodiments, when the movable silencing plate 20a is disposed between two fixed silencing plates 20b, the locking member 5 can be fixed to the two fixed silencing plates 20b in an openable and closable manner, or it can be fixed to the side frame 13 at one end.

[0062] In the aforementioned embodiments, the track component 14 is a straight component with slots 140 at both ends, allowing the movable silencing grille 20a to be disassembled from both ends of the track component 14. This makes the installation and placement of the silencing device more flexible and applicable to more application scenarios. The latch of the locking component 5 can be a hook, snap, pin, or quick-release device, etc., and the present invention does not impose any limitations on this.

[0063] In another embodiment, one end of the track component 14 is straight, i.e., it has a slot 140 through which the movable noise-reducing grille 20a can be inserted into or slid out of the track component 14. A limiting member is provided at the other end of the track component 14. This limiting member can be bent and extended from the other end of the track component 14 in a direction perpendicular to the main track 141, forming an extended track 1410. 。 The final height of the extension track 1410 can be lower than, equal to, or higher than the slot 140, as detailed below. Figure 9a and Figure 9b and Figure 9c As shown. The extension track 1410 forms a closed or semi-closed state at the end of the internal sliding space of the track component 14, thereby preventing the movable noise-absorbing grid 20a from sliding out from this end of the track component 14.

[0064] The above embodiments mainly describe the situation where the sound-absorbing grille 20 is distributed in the vertical direction relative to the top frame 10 or bottom frame 12 of the frame 1 within the frame 1.

[0065] There are also some embodiments, such as Figure 10 As shown, the silencing grid 20 of the silencing device can also be distributed laterally, and correspondingly, the limiting component is set vertically. To avoid confusion with the terminology used in the previous embodiment, it can be understood that the silencing device with the silencing grid 20 distributed laterally is formed by rotating the silencing grid 20 described above by 90 degrees. In this case, to facilitate the disassembly of the movable silencing grid 20a by maintenance personnel, the movable silencing grid 20a in the silencing device described above can be set near the side frame 13 of the frame 1, and two or more can be set. In this way, when the silencing device described above is rotated 90 degrees, the side frame 13 with the movable silencing grid 20a can be located at the bottom. In this way, after the movable silencing grid 20a is removed, it is convenient for maintenance personnel to pass through the silencing device.

[0066] like Figure 11 As shown, the sound-absorbing grid 20 may include a hollow rectangular body 201 made of a perforated metal plate and sound-absorbing cotton 202 located in the rectangular body 201. When noise passes through the sound-absorbing grid 20, the sound-absorbing cotton 202 effectively absorbs the noise and blocks the reflection of sound waves, thereby achieving the effect of noise reduction.

[0067] The side frame 13 of the frame 1 of the noise reduction device 100 can also be a hollow frame structure made of perforated metal plate. Sound-absorbing cotton 202 is installed inside the hollow side frame to make full use of the space and achieve a better noise reduction effect.

[0068] The top frame 10 of the frame 1 of the silencing device 100 can also be a hollow frame structure made of a perforated metal plate, and the bottom frame 12 can be a plate structure or a hollow frame structure made of a perforated metal plate. The hollow portion can also be further fitted with sound-absorbing cotton 202.

[0069] The silencing device 100 provided by this utility model can be applied to box-type generator sets, thereby reducing the noise generated by the generator set in the box-type generator set. At the same time, the movable silencing grille 20a allows maintenance personnel to easily access the movable passage 30 of the box-type generator set by disassembling the movable silencing grille 20a.

[0070] This utility model also provides a silent container 800. Figure 12 A silent container according to one embodiment is schematically shown. (As shown) Figure 12As shown, the silent container includes a container body 8 and an air inlet area 81, a generator set area 82, and an exhaust area 83 disposed within the container body 8. A generator set 9 is installed in the generator set area 82. A silencing device 100 according to this application, adapted to the height of the container body 8, is installed in the air inlet area 81 and the exhaust area 83, respectively. That is, the height of the frame 1 of the silencing device 100 is adapted to the height of the container body 8. It should be noted that the silencing device of this application can also be used in silent containers with other structures. For example, the air inlet area 81 and the exhaust area 83 are not located at both ends of the container body 8, but are respectively located at the front and rear of the container body. In fact, the silencing device of this utility model can be applied to the air inlet and exhaust areas of various silent containers, and this application does not impose any limitations on this.

[0071] For example, in Figure 12 In the air inlet zone 81 of the silent container 800 shown, three silencers 100 of this application are installed side by side, and two silencers 100 of this application are installed in the exhaust zone 83, thus forming a silencer array in both the air inlet zone 81 and the exhaust zone 83 of the silent container 800. When the noise generated by the generator set 9 during operation passes through the silencer array, it can be absorbed by the silencer array, thereby reducing the noise transmitted from the inside of the silent container 800 to the outside environment and reducing the impact of the silent container 800's operating noise on the outside world. It should be noted that this application does not limit the number of silencers 100 of this application installed in the air inlet and exhaust zones of the silent container 800. In practice, the number of silencers 100 of this application installed in the air inlet and exhaust zones can be adjusted according to various factors such as the required noise reduction level and the size of the container 8.

[0072] Optionally, in the exhaust zone 83 of the silent container 800, when two or more silencers 100 are installed, at least one of the silencers can be placed horizontally.

[0073] Generator set 9 often requires routine maintenance or repair in case of malfunction. When maintenance or repair is needed, maintenance personnel only need to remove the movable silencer grille 20a of the silencer device 100 from the air inlet area 81 or exhaust area 83 of the silent container 800 to create a passageway into the generator set area 82. After completing the maintenance or repair work on generator set 9 and exiting through the passageway, the maintenance personnel then reinstall the movable silencer grille 20a, restoring the complete structure of the silencer grille array. The individual movable silencer grille 20a is lightweight, making disassembly and installation very convenient, simplifying the operation for maintenance personnel and minimizing time and effort required.

[0074] Those skilled in the art will understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in this application can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and solutions in the various operations, methods, and processes discussed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and solutions in the prior art that are similar to those disclosed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0075] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A noise reduction device for a generator set container, comprising a frame and a noise reduction plate assembly mounted on the frame, the noise reduction plate assembly comprising a plurality of fixed noise reduction grilles and at least one movable noise reduction grille, characterized in that, The movable sound-absorbing grille is detachably mounted on the frame; The noise reduction device further includes a track component installed at the frame position corresponding to the movable noise reduction grille, allowing the movable noise reduction grille to move, and a limiting component for restricting the movable noise reduction grille from sliding out of the frame; The limiting component includes at least one detachable baffle located on the first end side of the movable silencing grid plate. The detachable baffle plate is fixedly installed on two fixed silencing grid plates adjacent to the movable silencing grid plate or fixed on one of the fixed silencing grid plates adjacent to the movable silencing grid plate and the frame.

2. The sound attenuating device of claim 1, wherein The movable noise-absorbing grid plate and the fixed noise-absorbing grid plate are arranged alternately side by side.

3. The sound attenuating device of claim 1 or 2, wherein The sound-absorbing grille is arranged parallel to the side frame of the frame.

4. The sound attenuating device of claim 1, wherein, The limiting component is an extension track extending from one end of the track component along a track extension direction perpendicular to the track component.

5. A sound attenuating device according to either one of claims 1 or 4, characterised in that, The limiting component also includes an openable locking component located on the second end side of the movable noise-absorbing grid plate. The locking component is fixed to two fixed noise-absorbing grid plates adjacent to the movable noise-absorbing grid plate or to one fixed noise-absorbing grid plate adjacent to the movable noise-absorbing grid plate and the frame, for retaining the movable noise-absorbing grid plate in the track component.

6. The sound attenuating device of claim 5, wherein, The locking component is a latch, buckle, pin, or quick-release device.

7. The silencing device according to claim 1, characterized in that, The sound-absorbing grid plate includes a hollow rectangular body made of a perforated metal plate and sound-absorbing cotton located in the rectangular body.

8. A silent container comprising a box body and an air intake zone, a generator set zone and an air exhaust zone provided in the box body, a generator set being installed in the generator set zone, characterized in that, A silencer according to any one of claims 1 to 7, suitable for the height of the enclosure, is provided in the air inlet area and the air outlet area.

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