Noise reduction device and generator set
By using a multi-chamber structure and aerogel layer, the noise reduction device solves the problems of unsatisfactory noise reduction effect and safety hazards of traditional noise reduction devices, and achieves better noise reduction and safety.
Patent Information
- Application Number
- CN202422845133.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Traditional noise reduction devices are not effective and the materials used, such as rock wool and glass wool, pose safety hazards to the human body.
The noise reduction device adopts a multi-chamber structure. By staggering the air inlets and air supply pipes, combined with the thermal insulation of the aerogel layer, it diverts the smoke to reduce the impact force and improve the sound insulation effect.
It effectively reduces the impact of generator flue gas, improves the noise reduction effect of exhaust, and avoids the use of materials that are harmful to the human body.
Smart Images
Figure CN223647900U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of generator set technology, and in particular to a noise reduction device and a generator set. Background Technology
[0002] A generator set is a mechanical device that converts other forms of energy into electrical energy. With technological advancements, generator sets are increasingly widely used in industrial production, agricultural production, and daily life, making it easy for people to encounter operating generator sets in their daily lives. However, generator sets generate considerable noise during operation, with exhaust noise being the most significant component. Therefore, noise reduction devices are typically installed at the exhaust end of the generator set to reduce the exhaust noise generated during operation.
[0003] However, traditional noise reduction devices have the following problems: 1. They reduce noise by setting up multiple interconnected chambers to mitigate the impact of the exhaust gas emitted by the generator set during operation, but the noise reduction effect of this method is not ideal; 2. They use materials such as rock wool and glass wool for heat insulation, but these materials pose significant health risks and safety hazards to the human body. Utility Model Content
[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a noise reduction device that is beneficial to improving the noise reduction effect on the exhaust noise generated by the generator set during operation.
[0005] This application also proposes a generator set having the above-mentioned noise reduction device.
[0006] A noise reduction device according to a first aspect of this application includes: a housing, the housing being a hollow cavity structure, wherein a first partition, a second partition, and a third partition are disposed within the housing at intervals along a first direction to divide the internal space of the housing into a first chamber, a second chamber, a third chamber, and a fourth chamber disposed along the first direction; an air inlet pipe connected to the first chamber; an air outlet pipe connected to the fourth chamber; a first air delivery pipe disposed within the first chamber and connected to the air inlet pipe and the second chamber; and a second air delivery pipe disposed within the third chamber and connected to the second chamber and the fourth chamber; wherein a first air outlet hole is provided on the wall of the first air delivery pipe, and air vents are provided on the first partition, the second partition, and the third partition.
[0007] The noise reduction device according to the embodiments of this application has at least the following beneficial effects: In use, the intake pipe is connected to the exhaust end of the generator set, and the exhaust gas discharged from the generator set enters the first air supply pipe through the intake pipe. Of the exhaust gas entering the first air supply pipe, a portion is sent into the second chamber through the first air supply pipe, and another portion enters the first chamber through the first air outlet. The exhaust gas entering the first chamber enters the second chamber through the vent on the first partition. Of the exhaust gas entering the second chamber, a portion is sent into the fourth chamber through the second air supply pipe, and another portion enters the third chamber through the vent on the second partition. The exhaust gas entering the third chamber enters the fourth chamber through the vent on the third partition. The exhaust gas entering the fourth chamber is discharged through the exhaust pipe. The above-mentioned noise reduction device can effectively divert the exhaust gas discharged from the generator set, effectively reducing the impact force of the exhaust gas discharged during generator set operation, thereby improving the noise reduction effect on the exhaust noise generated during generator set operation.
[0008] According to some embodiments of this application, the vent on the first partition is misaligned with the vent on the second partition, and / or the vent on the second partition is misaligned with the vent on the third partition.
[0009] According to some embodiments of this application, the first air supply pipe has a plurality of spaced-apart first air outlet holes on its pipe wall.
[0010] According to some embodiments of this application, the first partition is provided with a vent hole, the diameter of which is smaller than the inner diameter of the first air supply pipe, and the end of the first air supply pipe away from the air inlet pipe is connected to the first partition and connected to the second chamber through the vent hole.
[0011] According to some embodiments of this application, the end of the first air supply pipe away from the air inlet pipe is offset from the end of the second air supply pipe away from the fourth chamber.
[0012] According to some embodiments of this application, the third chamber is provided with a plurality of independent second air supply pipes.
[0013] According to some embodiments of this application, the sidewalls of the housing used to fix the first partition, the second partition and the third partition are double-layered structures, the sidewalls include an inner wall and an outer wall spaced apart, and a filling layer for heat insulation is provided between the inner wall and the outer wall.
[0014] According to some embodiments of this application, the filling layer is an aerogel layer.
[0015] According to some embodiments of this application, the inner wall is provided with a plurality of spaced second air vents in the regions corresponding to the first chamber, the second chamber, the third chamber and the fourth chamber.
[0016] A generator set according to a second aspect of this application includes a noise reduction device according to the first aspect of this application described above.
[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0019] Figure 1 This is a schematic diagram of the structure of a noise reduction device according to an embodiment of this application;
[0020] Figure 2 This is a cross-sectional schematic diagram of a noise reduction device according to an embodiment of this application;
[0021] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;
[0022] Figure 4 yes Figure 2 A schematic diagram of the structure shown from another perspective;
[0023] Figure 5 yes Figure 4 Enlarged view of a portion of point B in the middle;
[0024] Figure 6 This is an exploded view of a noise reduction device according to an embodiment of this application.
[0025] Figure label:
[0026] First chamber a, second chamber b, third chamber c, fourth chamber d, vent e, shell 100, first partition 110, vent 111, second partition 120, third partition 130, inner wall 140, second vent 141, outer wall 150, inlet pipe 200, outlet pipe 300, first air supply pipe 400, first vent 410, second air supply pipe 500, filling layer 600. Detailed Implementation
[0027] The embodiments of this application 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 application, and should not be construed as limiting this application.
[0028] In the description of this application, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0029] In the description of this application, if words such as several, greater than, less than, exceeding, above, below, or within appear, "several" means one or more, "more than" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the number itself, and "above," "below," "within," etc. are understood to include the number itself.
[0030] In the description of this application, the use of terms such as "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.
[0031] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0032] A generator set is a mechanical device that converts other forms of energy into electrical energy. With technological advancements, generator sets are increasingly widely used in industrial production, agricultural production, and daily life, making it easy for people to encounter operating generator sets in their daily lives. However, generator sets generate considerable noise during operation, with exhaust noise being the most significant component. Therefore, noise reduction devices are typically installed at the exhaust end of the generator set to reduce the exhaust noise generated during operation.
[0033] However, traditional noise reduction devices have the following problems: 1. They reduce noise by setting up multiple interconnected chambers to mitigate the impact of the exhaust gas emitted by the generator set during operation, but the noise reduction effect of this method is not ideal; 2. They use materials such as rock wool and glass wool for heat insulation, but these materials pose significant health risks and safety hazards to the human body.
[0034] Therefore, it is urgent to optimize traditional noise reduction devices to solve the above-mentioned technical problems. The optimized noise reduction device of this application will be described in detail below with reference to the accompanying drawings.
[0035] Reference Figures 1 to 6 The noise reduction device according to an embodiment of this application includes a housing 100, an air inlet pipe 200, an air outlet pipe 300, a first air delivery pipe 400, and a second air delivery pipe 500.
[0036] Specifically, the shell 100 is a hollow cavity structure. Inside the shell 100, a first partition 110, a second partition 120, and a third partition 130 are arranged at intervals along a first direction, dividing the internal space of the shell 100 into a first chamber a, a second chamber b, a third chamber c, and a fourth chamber d, arranged sequentially along the first direction. An air inlet pipe 200 is connected to the first chamber a, and an air outlet pipe 300 is connected to the fourth chamber d. A first air supply pipe 400 is located in the first chamber a and connected to the air inlet pipe 200 and the second chamber b, thus connecting the air inlet pipe 200 and the second chamber b. A second air supply pipe 500 is located in the third chamber c and connected to the second chamber b and the fourth chamber d, thus connecting the air inlet pipe 200 and the second chamber b. The first air supply pipe 400 has a first air outlet 410 on its wall, and each of the first partition 110, the second partition 120, and the third partition 130 has a vent e.
[0037] It should be noted that the first direction mentioned above is the X direction in the attached diagram.
[0038] In use, the intake pipe 200 is connected to the exhaust end of the generator set, and the exhaust gas discharged from the generator set enters the first air supply pipe 400 through the intake pipe 200. Of the exhaust gas entering the first air supply pipe 400, a portion is sent into the second chamber b through the first air supply pipe 400, and another portion enters the first chamber a through the first air outlet 410. The exhaust gas entering the first chamber a enters the second chamber b through the vent e on the first partition 110. Of the exhaust gas entering the second chamber b, a portion is sent into the fourth chamber d through the second air supply pipe 500, and another portion enters the third chamber c through the vent e on the second partition 120. The exhaust gas entering the third chamber c enters the fourth chamber d through the vent e on the third partition 130. The exhaust gas entering the fourth chamber d is discharged through the exhaust pipe 300. The aforementioned noise reduction device can effectively divert the exhaust gas emitted by the generator set, thereby reducing the impact force of the exhaust gas emitted during generator set operation and thus improving the noise reduction effect on the exhaust noise generated during generator set operation.
[0039] Reference Figure 2 and Figure 4In some embodiments, the vent e is formed by a notch at the edge of the partition and the housing 100, which helps to reduce the processing difficulty of the first partition 110, the second partition 120 and the third partition 130.
[0040] It should be noted that in some other embodiments, the vent e may also be a through-hole formed independently on its own partition, which is not limited here.
[0041] Reference Figure 2 and Figure 4 In some embodiments, the vent e on the first partition 110 and the vent e on the second partition 120 are misaligned, so that the flue gas entering the second chamber b through the vent e on the first partition 110 cannot quickly enter the third chamber c through the vent e on the second partition 120. This helps to extend the flow path of the flue gas, thereby further improving the noise reduction effect.
[0042] Reference Figure 2 and Figure 4 In some embodiments, the vent e on the second partition 120 and the vent e on the third partition 130 are misaligned, so that the flue gas entering the third chamber c from the vent e on the second partition 120 cannot quickly enter the fourth chamber d through the vent e on the third partition 130. This helps to extend the flow path of the flue gas, thereby further improving the noise reduction effect.
[0043] Specifically, the air vents e on the first partition 110 and the air vents e on the second partition 120 may be misaligned, or the air vents e on the second partition 120 and the air vents e on the third partition 130 may be misaligned, or the air vents e on the first partition 110 and the air vents e on the second partition 120 may also be misaligned with the air vents e on the third partition 130.
[0044] Reference Figures 2 to 6 In some embodiments, the first air supply pipe 400 is provided with a plurality of spaced first air outlet holes 410 on its pipe wall, which is beneficial to further enhance the diversion effect and thus further improve the noise reduction effect.
[0045] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6In some embodiments, the first partition 110 is provided with a vent hole 111, the diameter of which is smaller than the inner diameter of the first air supply pipe 400. The end of the first air supply pipe 400 away from the air inlet pipe 200 is connected to the first partition 110 and connected to the second chamber b through the vent hole 111. This allows the portion of the first partition 110 covered by the end of the first air supply pipe 400 to block some of the smoke in the first air supply pipe 400, which helps to force some of the smoke in the first air supply pipe 400 to enter the first chamber a through the first air outlet 410, thereby further enhancing the diversion effect and further improving the noise reduction effect.
[0046] Reference Figure 2 , Figure 4 and Figure 6 In some embodiments, the end of the first air supply pipe 400 away from the air inlet pipe 200 is offset from the end of the second air supply pipe 500 away from the fourth chamber d, which helps to extend the flow path of the flue gas and thus further improve the noise reduction effect.
[0047] Reference Figure 2 , Figure 4 and Figure 6 In some embodiments, the third chamber c is provided with multiple independent second air supply pipes 500, which helps to further enhance the diversion effect and thus further improve the noise reduction effect.
[0048] Reference Figures 2 to 6 In some embodiments, the sidewalls of the housing 100 used to fix the first partition 110, the second partition 120 and the third partition 130 are double-layered. The sidewalls include an inner wall 140 and an outer wall 150 spaced apart. A heat insulation filling layer 600 is provided between the inner wall 140 and the outer wall 150, which helps to prevent the noise reduction device from transferring too much heat to the outside and causing safety hazards.
[0049] It should be noted that in some embodiments, the filling layer 600 is an aerogel layer, which not only has the effect of heat insulation but also the effect of sound insulation. In addition, compared with materials such as rock wool and glass wool, aerogel is less harmful to the human body.
[0050] Specifically, the aerogel used is nanoscale.
[0051] Reference Figures 2 to 6In some embodiments, when the filling layer 600 is an aerogel layer, the inner wall 140 is provided with a plurality of spaced second air vents 141 in the regions corresponding to the first chamber a, the second chamber b, the third chamber c, and the fourth chamber d, so that the flue gas entering the first chamber a, the second chamber b, the third chamber c, and the fourth chamber d can be partially absorbed by the filling layer 600 through the second air vents 141, thereby helping to further improve the noise reduction effect.
[0052] The generator set according to an embodiment of this application includes the noise reduction device described above.
[0053] It should be noted that, since the generator set of the embodiment of this application includes the above-mentioned noise reduction device, the generator set of the embodiment of this application has all the technical effects of the above-mentioned noise reduction device.
[0054] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0055] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A noise reduction device, characterized in that, include: The shell is a hollow cavity structure. The shell is provided with a first partition, a second partition and a third partition that are arranged at intervals along a first direction to divide the internal space of the shell into a first chamber, a second chamber, a third chamber and a fourth chamber that are arranged at intervals along the first direction. The air intake pipe is connected to the first chamber; An exhaust pipe is connected to the fourth chamber; A first air supply pipe is disposed in the first chamber and connected to the air inlet pipe and the second chamber; The second air supply pipe is disposed in the third chamber and connected to the second chamber and the fourth chamber; The first air supply pipe has a first air outlet on its wall, and the first partition, the second partition, and the third partition all have air vents.
2. The noise reduction device as described in claim 1, characterized in that, The vents on the first partition are misaligned with the vents on the second partition, and / or the vents on the second partition are misaligned with the vents on the third partition.
3. The noise reduction device as described in claim 1, characterized in that, The first air supply pipe has multiple spaced-apart first air outlet holes on its pipe wall.
4. The noise reduction device as described in claim 1, characterized in that, The first partition is provided with a vent hole, the diameter of which is smaller than the inner diameter of the first air supply pipe. The end of the first air supply pipe away from the air inlet pipe is connected to the first partition and connected to the second chamber through the vent hole.
5. The noise reduction device as described in claim 1, characterized in that, The end of the first air supply pipe away from the air inlet pipe is offset from the end of the second air supply pipe away from the fourth chamber.
6. The noise reduction device as described in claim 1, characterized in that, The third chamber is equipped with multiple independent second air supply pipes.
7. The noise reduction device as described in claim 1, characterized in that, The housing is a double-layer structure for fixing the sidewalls of the first partition, the second partition, and the third partition. The sidewalls include an inner wall and an outer wall spaced apart, and a heat insulation filling layer is provided between the inner wall and the outer wall.
8. The noise reduction device as described in claim 7, characterized in that, The filling layer is an aerogel layer.
9. The noise reduction device as described in claim 8, characterized in that, The inner wall is provided with multiple spaced second air vents in the areas corresponding to the first chamber, the second chamber, the third chamber, and the fourth chamber.
10. A generator set, characterized in that, Includes the noise reduction device as described in any one of claims 1 to 9.