Air inlet silencer of diesel generating set

Abstract

The utility model discloses an air inlet silencing device of a diesel generating set, belongs to the technical field of diesel generating sets, and aims to solve the problems that an air inlet silencing barrel part in the prior art is not provided with an impurity filtering mechanism, and when impurities or particles, hair and the like in air enter a silencing barrel along with air flow, the impurities are filtered out. And parts such as a diesel generating set, an acoustic panel and the like are possibly damaged and blocked. Comprising an air duct cylinder, filtering mechanisms are jointly installed above and in the middle of the air duct cylinder, silencing mechanisms are installed inside and outside the air duct cylinder, each filtering mechanism comprises an assembly frame, installation assemblies are installed on the inner side of the assembly frame and the outer side of the top of the air duct cylinder, and a porous plate frame is arranged in the middle of the middle of the assembly frame; and a filtering assembly component is mounted at the lower section of the middle part of the assembly frame. According to the utility model, a worker can fixedly mount the air duct cylinder at the air inlet mounting groove of the diesel generating set in advance, and when the air duct cylinder is put into use, the air quantity of the air duct cylinder firstly passes through the perforated plate frame in the middle of the assembly frame.

Description

Technical Field

[0001] This utility model belongs to the technical field of diesel generator sets, and specifically relates to a diesel generator set air intake silencer. Background Technology

[0002] Diesel generator sets are a common type of power generation equipment. Because diesel generator sets have a large air intake during operation, they can generate a lot of noise. At this time, an air intake silencer is used to reduce the noise level.

[0003] For example, patent CN106837533A discloses a diesel generator set muffler device, which consists of an air inlet muffler slot (1), a soundproof door (2), a sound-absorbing panel group (4), an air outlet muffler slot (5), and a generator muffler group (6).

[0004] During use, the aforementioned diesel generator set muffler does not have an impurity filtration mechanism in its air intake muffler section. When impurities, airborne particles, hair, etc., enter the muffler with the airflow, they may cause damage and blockage to the diesel generator set and other components such as the sound-absorbing panels. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a diesel generator set air intake silencer, which aims to solve the problem that the air intake silencer in the existing technology does not have an impurity filtration mechanism. When impurities or air particles, hair, etc. enter the silencer with the airflow, they may cause damage and blockage to the diesel generator set and sound-absorbing panels and other components.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides a diesel generator set air intake silencing device, including an air duct, a filter mechanism jointly installed at the top and middle of the air duct, a silencing mechanism installed inside and outside the air duct, the filter mechanism including an assembly frame, an installation component installed on the inner side of the assembly frame and the top outer side of the air duct, and a perforated plate frame provided in the middle section of the assembly frame, and a filter assembly component installed in the lower middle section of the assembly frame.

[0009] Furthermore, the mounting component includes external threads, which are distributed around the top periphery of the air duct, while the inner side of the mounting bracket is provided with internal threads.

[0010] Furthermore, the filter assembly includes a first ring plate, which is fixedly disposed in the lower section of the assembly frame. A filter screen frame is disposed below the first ring plate, and a return spring is installed on both sides of the lower part of the filter screen frame. A connecting torsion block is fixedly disposed at one end of the return spring, and a limiting rod is fixedly disposed at the inner end of the connecting torsion block. Limit grooves are opened on both sides of the lower section of the assembly frame, and guide blocks are fixed on the other two sides of the lower section of the assembly frame. Guide grooves are opened on both sides of the filter screen frame.

[0011] Furthermore, the end dimension of the limiting rod matches the opening dimension of the limiting groove.

[0012] Furthermore, the guide grooves on both sides of the filter frame form a movable guide connection with the corresponding guide blocks on the inner side of the assembly frame.

[0013] Furthermore, the noise reduction mechanism includes a noise reduction cotton sleeve, which is fitted around the periphery of the air duct. The inner side of the air duct is provided with a sound-absorbing lining. A second ring plate is provided on the inner side of the air duct, and a sound-absorbing plate is fixed above the second ring plate. Air holes are provided on one side of the sound-absorbing plate.

[0014] Furthermore, the sound-absorbing liner and the sound-absorbing cotton sleeve are respectively located on the inner and outer sides of the air duct.

[0015] Furthermore, the sound-absorbing panels are evenly spaced along the inside of the air duct, and the air holes of two adjacent sound-absorbing panels are not on the same side.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model allows workers to pre-install the air duct in the air inlet mounting slot of the diesel generator set. When the air duct is put into use, the airflow first passes through the perforated plate frame in the middle of the mounting frame. Because the perforated plate frame has many evenly distributed small holes, the airflow is dispersed into multiple small streams. These multiple streams then act more evenly on the filter screen, preventing excessive filtration load and resistance in localized areas due to concentrated airflow. This improves the overall airflow rate and is noteworthy. It's worth mentioning that the filter screen frame has a smaller aperture than the perforated plate frame. Both types of apertures can indirectly filter impurities of various sizes in the intake airflow, preventing impurities from entering the diesel generator set and affecting the corresponding components. When the filter screen frame needs to be cleaned later, personnel can first use the external and internal threads to remove the mounting bracket from the air duct. Then, pull the connecting toggle blocks on both sides of the bottom of the filter screen frame with both hands to allow the limit rod, which is elastically connected by the return spring, to disengage from the limit groove. Then, use the guide block and guide groove to remove the filter screen frame for replacement. It is portable and practical.

[0019] After being filtered by the filtration mechanism, the airflow of this utility model enters the sound-absorbing area inside the air duct. Since the air duct is equipped with sound-absorbing plates and the air holes of adjacent sound-absorbing plates are on different sides, the airflow distance can be extended. In conjunction with the sound-absorbing plates and the sound-absorbing lining and sound-absorbing cotton sleeve inside and outside the air duct, the sound-absorbing effect can be greatly improved. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure;

[0023] Figure 3 This is a schematic diagram of the internal partial structure;

[0024] Figure 4 for Figure 2 Schematic diagram of the structure at point A in the middle.

[0025] The labels in the attached diagram are as follows: 1. Air duct; 2. Filter mechanism; 21. Mounting assembly; 211. External thread; 212. Internal thread; 22. Assembly frame; 23. Perforated plate frame; 24. Filter assembly assembly; 241. First ring plate; 242. Filter screen frame; 243. Return spring; 244. Connecting torsion block; 245. Limiting rod; 246. Limiting groove; 247. Guide block; 248. Guide groove; 3. Silencing mechanism; 31. Silencing cotton sleeve; 32. Sound-absorbing lining; 33. Second ring plate; 34. Sound-absorbing plate; 35. Air hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This specific embodiment is a diesel generator set air intake silencer, the structural schematic diagram of which is shown below. Figures 1 to 4As shown, the system includes a duct 1, a filter mechanism 2 jointly installed at the top and middle of the duct 1, and a silencer mechanism 3 installed inside and outside the duct 1. The filter mechanism 2 includes an assembly frame 22, and an installation component 21 is installed on the inner side of the assembly frame 22 and the top outer side of the duct 1. The installation component 21 includes an external thread 211, which is distributed around the top periphery of the duct 1. The inner side of the assembly frame 22 is provided with an internal thread 212, and a perforated plate frame 23 is provided in the middle section of the assembly frame 22. A filter assembly component 24 is installed in the lower middle section of the assembly frame 22. The filter assembly component 24 includes a first ring plate 241, which is fixed to the assembly frame 2. Inside the lower section of assembly frame 22, a filter screen frame 242 is provided below the first ring plate 241. Return springs 243 are installed on both sides of the lower part of the filter screen frame 242. A connecting torsion block 244 is fixed to one end of each return spring 243, and a limiting rod 245 is fixed to the inner end of the connecting torsion block 244. Limiting grooves 246 are formed on both sides of the lower section of the assembly frame 22. The end dimension of the limiting rod 245 matches the opening dimension of the limiting groove 246. Guide blocks 247 are fixed to the other two sides of the lower section of the assembly frame 22. Guide grooves 248 are formed on both sides of the filter screen frame 242, and the guide grooves 248 on both sides of the filter screen frame 242 correspond to the guide blocks 247 on the inner side of the assembly frame 22. A movable guide connection is formed between them. Workers can pre-install the air duct 1 at the air inlet mounting slot of the diesel generator set. When the air duct 1 is put into use, its airflow first passes through the perforated plate frame 23 in the middle of the mounting frame 22. Because the perforated plate frame 23 has many evenly distributed small holes, the airflow is dispersed into multiple small streams. Thus, when these multiple streams of air pass through the filter frame 242, they can act more evenly on all parts of the filter frame 242, avoiding excessive filtration load and resistance in localized areas due to concentrated airflow, thereby improving the overall airflow rate. It is worth mentioning that the filter frame 24... The aperture of filter 2 is smaller than that of the perforated plate frame 23. The apertures of both can indirectly filter impurities of different sizes in the intake airflow, preventing impurities from entering the diesel generator set and affecting the corresponding components. When the filter frame 242 needs to be cleaned later, the personnel can remove the mounting bracket 22 from the air duct 1 in advance using the external thread 211 and internal thread 212. Then, pull the connecting toggle blocks 244 on both sides below the filter frame 242 with both hands, so that the limiting rod 245, which is elastically connected by the return spring 243, can be disengaged from the limiting groove 246. Then, the filter frame 242 can be removed and replaced using the guide block 247 and guide groove 248. It is portable and practical.

[0028] The silencing mechanism 3 includes a sound-absorbing cotton sleeve 31, which is fitted around the periphery of the duct 1. A sound-absorbing lining 32 is provided on the inner side of the duct 1. The sound-absorbing lining 32 and the sound-absorbing cotton sleeve 31 are respectively located on the inner and outer sides of the duct 1. A second ring plate 33 is provided on the inner side of the duct 1, and a sound-absorbing plate 34 is fixed above the second ring plate 33. Air holes 35 are provided on one side of the sound-absorbing plate 34. The sound-absorbing plate 34 is equidistantly distributed along the interior of the duct 1. Furthermore, the air holes 35 of two adjacent sound-absorbing panels 34 are not on the same side. After being filtered by the filter mechanism 2, the airflow will officially enter the sound-absorbing area inside the air duct 1. Since the air duct 1 is equipped with sound-absorbing panels 34, and the air holes 35 of adjacent sound-absorbing panels 34 are on different sides, the airflow distance can be extended. In conjunction with the sound-absorbing panels 34 and the sound-absorbing lining 32 and sound-absorbing cotton sleeve 31 inside and outside the air duct 1, the sound-absorbing effect can be greatly improved.

[0029] Working Principle: Operators can pre-install the air duct 1 in the air intake mounting slot of the diesel generator set. When the air duct 1 is put into use, its airflow first passes through the perforated plate frame 23 in the middle of the mounting frame 22. Because the perforated plate frame 23 has many evenly distributed small holes, the airflow is dispersed into multiple small streams. These multiple streams then act more evenly on various parts of the filter frame 242 when passing through it, preventing excessive filtration load and resistance in localized areas due to concentrated airflow. This improves the overall airflow rate. It is worth noting that the aperture of the filter frame 242 is smaller than that of the perforated plate frame 23. Both apertures can indirectly filter impurities of different sizes in the intake airflow, preventing impurities from entering the diesel generator set and affecting corresponding components. When the filter frame 242 needs to be cleaned later, the personnel can remove the assembly frame 22 from the air duct 1 in advance using the external thread 211 and internal thread 212. Then, pull the connecting toggle blocks 244 on both sides below the filter frame 242 with both hands, so that the limiting rod 245, which is elastically connected by the return spring 243, can be disengaged from the limiting groove 246. Then, the filter frame 242 can be removed and replaced using the guide block 247 and guide groove 248. It is portable and practical. Secondly, after the airflow is filtered by the filter mechanism 2, it will officially enter the sound-absorbing area in the air duct 1. Since the air duct 1 is equipped with sound-absorbing plates 34, and the air holes 35 of adjacent sound-absorbing plates 34 are not on the same side, the airflow distance can be extended. In conjunction with the sound-absorbing plates 34 and the sound-absorbing lining 32 and sound-absorbing cotton sleeve 31 inside and outside the air duct 1, the sound-absorbing effect can be greatly improved.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A diesel generator set air intake silencer, comprising an air duct (1), characterized in that, A filter mechanism (2) is installed at the top and middle of the air duct (1). A silencer mechanism (3) is installed inside and outside the air duct (1). The filter mechanism (2) includes an assembly frame (22). An installation component (21) is installed on the inner side of the assembly frame (22) and the top outer side of the air duct (1). A perforated plate frame (23) is provided in the middle section of the assembly frame (22). A filter assembly component (24) is installed in the lower middle section of the assembly frame (22).

2. The diesel generator set air intake silencer according to claim 1, characterized in that, The mounting component (21) includes an external thread (211), and the external thread (211) is distributed around the top periphery of the air duct (1), while the inner side of the mounting bracket (22) is provided with an internal thread (212).

3. The diesel generator set air intake silencer according to claim 1, characterized in that, The filter assembly (24) includes a first ring plate (241), which is fixedly mounted on the lower part of the assembly frame (22). A filter screen frame (242) is provided below the first ring plate (241), and a return spring (243) is installed on both sides of the lower part of the filter screen frame (242). A connecting torsion block (244) is fixedly mounted on one end of the return spring (243), and a limiting rod (245) is fixedly mounted on the inner end of the connecting torsion block (244). Limiting grooves (246) are opened on both sides of the lower part of the assembly frame (22), and guide blocks (247) are fixedly mounted on the other two sides of the lower part of the assembly frame (22). Guide grooves (248) are opened on both sides of the filter screen frame (242).

4. The diesel generator set air intake silencer according to claim 3, characterized in that, The end dimension of the limiting rod (245) matches the opening dimension of the limiting groove (246).

5. The diesel generator set air intake silencer according to claim 3, characterized in that, The guide grooves (248) on both sides of the filter frame (242) form a movable guide connection with the guide blocks (247) corresponding to the inner side of the assembly frame (22).

6. The diesel generator set air intake silencer according to claim 1, characterized in that, The silencing mechanism (3) includes a silencing cotton sleeve (31), which is fitted around the periphery of the air duct (1). The inner side of the air duct (1) is provided with a sound-absorbing lining (32). The inner side of the air duct (1) is provided with a second ring plate (33), and a sound-absorbing plate (34) is fixed above the second ring plate (33). One side of the sound-absorbing plate (34) is provided with an air hole (35).

7. A diesel generator set air intake silencer according to claim 6, characterized in that, The sound-absorbing liner (32) and the sound-absorbing cotton sleeve (31) are respectively located on the inner and outer sides of the air duct (1).

8. A diesel generator set air intake silencer according to claim 6, characterized in that, The sound-absorbing panels (34) are evenly spaced along the interior of the air duct (1), and the air holes (35) of two adjacent sound-absorbing panels (34) are not on the same side.

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