A noise reduction component for a generator

Abstract

This utility model relates to the field of generator equipment technology and discloses a noise reduction component for a generator, including a generator housing and a silencer. The generator housing contains a noise reduction chamber. The silencer's exhaust pipe is located within the noise reduction chamber, and a vent is provided on one side of the chamber. A cooling device is installed between the vent and the exhaust pipe. This achieves more thorough and effective noise suppression, significantly reducing the noise level ultimately emitted into the environment and better meeting environmental protection and occupational health standards.

Description

Technical Field

[0001] This utility model relates to the field of generator equipment technology, and specifically to a noise reduction component for a generator. Background Technology

[0002] When the internal combustion engine (diesel / gasoline) of a generator is working, the high-temperature, high-pressure exhaust gas is discharged at high speed, which will generate strong pulse noise (up to 100-120 decibels), equivalent to the noise level of a chainsaw or a rock concert. The muffler reduces the noise to a safe range (usually targeting 65-85 decibels) through its internal sound-absorbing structure to meet environmental protection and occupational health standards. The generator muffler is a key component that balances "power output, environmental compliance, and personal safety".

[0003] In China, there are very clear and strict regulations regarding the orientation of generator exhaust outlets. The core of these regulations is the mandatory requirement in Clause 5.4.13 of GB50016: "The exhaust pipe opening should not face areas of personnel activity, equipment operation areas, pedestrian walkways, evacuation routes, areas that may cause fire hazards, or roof openings." Therefore, in existing technology, generator exhaust outlets are positioned as close to the ground as possible.

[0004] Chinese patent document CN222933723U discloses a generator support chassis assembly, including a chassis body. The chassis body includes a base plate, a front crossbeam, a rear crossbeam, a left crossbeam, and a right crossbeam. The chassis body contains a muffler, a battery, and a fuel tank. The battery is located between the muffler and the fuel tank. The muffler is positioned near the front crossbeam. The front crossbeam has a heat dissipation mesh and exhaust vents. A partition is provided between the muffler and the battery.

[0005] The existing technology has the following shortcomings: Although the exhaust port of the existing muffler is low, as long as the muffler is directly connected to the outside, the high temperature gas generated by the muffler will have more or less impact on the operator or plants and animals close to the ground. Utility Model Content

[0006] To address the technical issues of environmental protection and safety in generators, this utility model provides a generator silencing component, a generator housing, and a muffler. The generator housing is equipped with a silencing chamber. The muffler's exhaust pipe is located within the silencing chamber, a vent is provided on one side of the silencing chamber, and a cooling device is provided between the vent and the exhaust pipe.

[0007] Preferably, the cooling device has a cooling pipe array in the middle, and the gaps between the cooling pipe arrays allow gas to pass through.

[0008] To facilitate circulating cooling, the cooling equipment includes an upper cooling chamber and a lower cooling chamber, and the cooling pipes connect the upper cooling chamber and the lower cooling chamber. The upper cooling chamber and the lower cooling chamber are also connected by a circulating pipe and a water pump.

[0009] To facilitate the installation of the muffler, the muffler is mounted inside the generator housing via a horizontal bracket. The horizontal bracket includes two transverse support rods with a gap between them. The muffler's air intake pipe runs around the bottom of the horizontal bracket and connects to the engine.

[0010] To avoid safety risks after the exhaust heating housing, an exhaust baffle is installed between the exhaust port of the exhaust pipe and the generator housing.

[0011] Preferably, the muffler is installed between the support plates on both sides of the horizontal bracket, the exhaust port of the exhaust pipe faces the extension of the support plate, and the gas discharged from the exhaust port is blocked by the extension.

[0012] To facilitate airflow guidance and spatial arrangement, the exhaust pipe is located on one side of the muffler, and the exhaust pipe has a C-shaped structure and is parallel to the cooling equipment.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model creates a semi-enclosed secondary noise reduction space by incorporating a cooling device within the muffler's exhaust pipe. The sound waves from the exhaust gas after the initial noise reduction by the muffler are further absorbed and attenuated by the shell within the anechoic chamber, and then released more smoothly to the outside through the ventilation mesh. This achieves more thorough and effective noise suppression, significantly reducing the final noise level emitted into the environment and better meeting environmental protection and occupational health standards. Simultaneously, the built-in exhaust system prevents high-temperature exhaust gas (and its noise) from directly impacting personnel or sensitive areas (such as ground vegetation and equipment) at close range.

[0015] 2. The temperature and velocity of the exhaust gas after passing through the anechoic chamber and cooling equipment and then being discharged through the vent mesh forcibly change the final injection direction of the high-temperature, high-speed exhaust gas, ensuring that the exhaust port will not directly face any personnel activity areas, equipment operation areas, pedestrian passages, evacuation routes, places that may cause fire hazards, or roof openings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the noise reduction component of the generator of this utility model;

[0017] Figure 2 This is a schematic diagram of the generator casing;

[0018] Figure 3A schematic diagram of the muffler's installation structure;

[0019] Figure 4 This is a schematic diagram of a water-cooled circulation system. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation method:

[0021] The reference numerals in the accompanying drawings include: generator housing 1, muffler 2, intake pipe 201, exhaust pipe 202, exhaust port 203, muffler chamber 3, vent mesh 4, engine 5, air-cooled equipment 6, water-cooled circulation equipment 7, cooling pipe 701, gap 702, upper cooling chamber 703, lower cooling chamber 704, circulation pipe 705, water pump 706, horizontal bracket 8, transverse support rod 801, support plate 802, extension 803.

[0022] Example 1

[0023] like Figure 1-4 As shown, a generator silencing assembly includes a generator housing 1 and a muffler 2. The generator housing 1 is provided with a silencing chamber 3. The exhaust pipe 202 of the muffler 2 is located in the silencing chamber 3. A vent 4 is provided on one side of the silencing chamber 3, and an engine 5 and an air-cooling device 6 are located on the other side. A water-cooling circulation device 7 is provided between the vent 4 and the exhaust pipe 202.

[0024] The water-cooled circulation device 7 has a cooling pipe 701 in the middle, and the gap 702 between the cooling pipes 701 allows gas to pass through.

[0025] The water-cooled circulation device 7 includes an upper cooling chamber 703 and a lower cooling chamber 704. The cooling pipe 701 connects the upper cooling chamber 703 and the lower cooling chamber 704. The upper cooling chamber 703 and the lower cooling chamber 704 are also connected to an external circulation pipe 705 and a water pump 706. Cooling water flows from the upper cooling chamber 703 to the lower cooling chamber 704. The water pump 706 circulates the water from the lower cooling chamber 704 to the upper cooling chamber 703.

[0026] The muffler 2 is installed inside the generator housing 1 via a horizontal bracket 8. The horizontal bracket 8 includes two transverse support rods 801 with a gap between them. The intake pipe 201 of the muffler 2 runs around the bottom of the horizontal bracket 8 and connects to the engine 5.

[0027] The muffler 2 is installed between the support plates 802 on both sides of the horizontal bracket 8. The exhaust port 203 of the exhaust pipe 202 faces the extension 803 of the support plate 802. The extension 803 is located between the exhaust port 203 of the exhaust pipe 202 and the generator housing 1 and is used as an exhaust baffle. The gas discharged from the exhaust port 203 is blocked by the extension 803.

[0028] The exhaust pipe 202 is located on one side of the muffler 2, and the exhaust pipe 202 has a C-shaped structure and is parallel to the water-cooled circulation equipment 7.

[0029] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A silencing assembly of an electric generator, an electric generator housing and a silencer, a silencing chamber being provided in the electric generator housing, characterized in that, The exhaust pipe of the muffler is located in the muffler chamber, and a vent is provided on one side of the muffler chamber. A cooling device is provided between the vent and the exhaust pipe.

2. A silencing assembly for an electrical generator as claimed in claim 1, characterised in that: The cooling device has a cooling pipe array in the middle, and the gaps between the cooling pipe arrays allow gas to pass through.

3. The noise reduction assembly for the generator according to claim 2, characterized in that: The cooling equipment includes an upper cooling chamber and a lower cooling chamber, and the cooling pipes connect the upper cooling chamber and the lower cooling chamber. The upper cooling chamber and the lower cooling chamber are also connected by a circulation pipe and a water pump.

4. A silencing assembly for an electrical generator according to claim 3, characterised in that: The muffler is mounted inside the generator housing via a horizontal bracket. The horizontal bracket includes two transverse support rods with a gap between them. The muffler's air intake pipe runs around the bottom of the horizontal bracket and connects to the engine.

5. A silencing assembly for an electrical generator according to claim 4, characterised in that: An exhaust baffle is installed between the exhaust port of the exhaust pipe and the generator housing.

6. A silencing assembly for an electrical generator according to claim 5, wherein: The muffler is installed between the support plates on both sides of the horizontal bracket, and the exhaust port of the exhaust pipe faces the extension of the support plate, and the gas discharged from the exhaust port is blocked by the extension.

7. A silencing assembly for an electrical generator according to claim 6, characterised in that: The exhaust pipe is located on one side of the muffler, and the exhaust pipe has a C-shaped structure and is parallel to the cooling equipment.

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