Top exhaust noise elimination structure of generator set

Abstract

The utility model provides a generator set top air exhaust noise elimination structure, the noise elimination structure is a silencer (4a) arranged at the air exhaust end of a generator (1a) of a generator set, a plurality of noise elimination sheets (1) are arranged in a cabin of the silencer in parallel, the surfaces of the noise elimination sheets are covered with sound absorption layers, and air exhaust gaps are reserved among the noise elimination sheets. Noise reduction of a conventional generator set can be upgraded on the premise that the size of an original generator set is not changed, operation of operators is convenient, and the machining cost is low. The structure is simple and reliable, the part failure risk does not exist, extra maintenance cost is not needed, the problem of partial noise is well solved, and great significance and value are achieved.

Description

Technical Field

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

[0002] Generator sets are widely used in emergency situations, backup power, communications, mining areas, infrastructure, national defense, and other applications requiring independent power supply. They consist of a chassis, a soundproof enclosure, and a silencing system. Plate-type silencers are a type of resistive silencer with mature theory, simple construction, and low cost. They are commonly used in diesel generator sets for significant noise reduction, and top-mounted exhaust ventilation is now standard practice. Because the exhaust end of a generator set is open and generates considerable noise, silencers are installed at the exhaust end for noise reduction. However, current technology for silencers suffers from complex structures, inconvenient installation, high manufacturing costs, and large space requirements, thus affecting the exhaust area. With increasing demands for generator set noise and emissions, the number of silencers is constantly increasing, along with the addition of exhaust gas treatment devices such as smoke traps, three-way catalytic converters, urea tanks, and spark arresters. This places higher demands on the installation space within the exhaust shaft. Therefore, designing a simple silencer for noise reduction is essential. Utility Model Content

[0003] This invention proposes a generator set top exhaust noise reduction structure. The structure is simple, highly feasible, and can upgrade the noise reduction of conventional generator sets without changing the original unit size. It is easy for operators to use and has low processing costs. Its simple and reliable structure eliminates the risk of component failure and requires no additional maintenance costs, effectively solving some noise problems and possessing significant meaning and value.

[0004] The present invention adopts the following technical solution.

[0005] A generator set top exhaust silencing structure, wherein the silencing structure is a silencer (4a) installed at the exhaust end of the generator (1a) of the generator set, wherein multiple silencing plates (1) are arranged in parallel inside the chamber of the silencer, the surface of the silencing plates is covered with a sound-absorbing layer, and exhaust gaps are reserved between the silencing plates.

[0006] The sound-absorbing layer is a quiet high-density sponge layer (3).

[0007] The generator is equipped with a diesel engine (2a), and the exhaust port of the diesel engine is connected to the lower part of the generator's exhaust end.

[0008] A top exhaust cover (6a) is provided at the upper part of the generator exhaust end, and a radiator (3a) is provided at the exhaust port of the diesel engine.

[0009] The sound-absorbing plate is vertically arranged on the upper part of the muffler.

[0010] The top of the silencer plate is connected to the top exhaust cover of the generator exhaust end.

[0011] The sound-absorbing plate forms a sound wave propagation channel within the silencer; when the sound wave propagates through the sound-absorbing plate, its sound wave energy is converted into the vibration of the sound-absorbing plate and thus reduced; both sides of the exhaust slit are sound-absorbing layers of the sound-absorbing plate, which absorb the sound waves propagating through the exhaust slit.

[0012] The sound-absorbing plate is a sheet-type sound-absorbing plate formed by stamping, bending and assembling steel plates (5a).

[0013] Each silencer plate is connected to the other by silencer plate angle steel (4) and fixed inside the silencer compartment.

[0014] Each sound-absorbing plate is connected to the sound-absorbing plate angle steel by fixing bolts (2).

[0015] The generator set top exhaust noise reduction structure proposed in this utility model is highly feasible. It can upgrade the noise reduction of conventional generator sets without changing the original unit size. It is easy for operators to operate and has low processing costs. Its structure is simple and reliable, with no risk of component failure and no need for additional maintenance costs. This utility model design effectively solves some noise problems and has significant meaning and value. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] Appendix Figure 1 This is a front view of the sound-absorbing sheet;

[0018] Appendix Figure 2 This is a side view of multiple sound-absorbing plates connected together.

[0019] Appendix Figure 3 This is a three-dimensional schematic diagram of multiple sound-absorbing plates connected together.

[0020] Appendix Figure 4 This is a top-view schematic diagram of multiple sound-absorbing plates connected together.

[0021] Appendix Figure 5 This is a front view of the generator set's exhaust structure;

[0022] Appendix Figure 6 This is a side view of the generator set's exhaust structure;

[0023] Appendix Figure 7 This is a top view of the generator set's exhaust structure;

[0024] In the diagram: 1. Silencing plate; 2. Fixing bolt; 3. High-density sound-absorbing sponge; 4. Angle steel connecting the silencing plate; 1a. Generator; 2a. Diesel engine; 3a. Radiator; 4a. Silencer; 5a. Plate-type silencing plate; 6a. Top exhaust cover. Detailed Implementation

[0025] As shown in the figure, a generator set top exhaust silencing structure is provided. The silencing structure is a silencer 4a installed at the exhaust end of the generator 1a of the generator set. Multiple silencing plates 1 are arranged in parallel inside the chamber of the silencer. The surface of the silencing plates is covered with a sound-absorbing layer, and exhaust gaps are reserved between the silencing plates.

[0026] The sound-absorbing layer is a high-density, sound-absorbing sponge layer 3.

[0027] The generator is equipped with a diesel engine 2a, and the exhaust port of the diesel engine is connected to the lower part of the generator's exhaust end.

[0028] The generator exhaust end is equipped with a top exhaust cover 6a, and the diesel engine exhaust port is equipped with a radiator 3a.

[0029] The sound-absorbing plate is vertically arranged on the upper part of the muffler.

[0030] The top of the silencer plate is connected to the top exhaust cover of the generator exhaust end.

[0031] The sound-absorbing plate forms a sound wave propagation channel within the silencer; when the sound wave propagates through the sound-absorbing plate, its sound wave energy is converted into the vibration of the sound-absorbing plate and thus reduced; both sides of the exhaust slit are sound-absorbing layers of the sound-absorbing plate, which absorb the sound waves propagating through the exhaust slit.

[0032] The sound-absorbing sheet is a sheet-type sound-absorbing sheet 5a formed by stamping, bending and assembling steel plates.

[0033] Each silencer plate is connected to the others by silencer plate angle steel 4 and fixed inside the silencer chamber.

[0034] Each sound-absorbing plate is connected to the sound-absorbing plate angle steel by fixing bolt 2.

[0035] Example 1:

[0036] In this example, a generator set top exhaust sound-absorbing plate structure includes connecting flat iron, high-density sound-absorbing foam, fixing bracket, and bolts. Figures 1-4 As shown, the sound-absorbing panels are composed of brackets connected side by side, forming an evenly spaced arrangement. Sound-absorbing foam is then attached to both sides of the sound-absorbing panels as sound-absorbing material. This method is low-cost and easy to install. Figure 5-7As shown, when the silencer is in operation, the sound waves propagate inside the silencer. Therefore, there are plate-type sound-absorbing plates inside the silencer compartment. The sound-absorbing plates are located above the silencer, and the sound waves will pass through the plate-type sound-absorbing plates to the exhaust top cover. After the sound-absorbing plates are covered with sponge, a certain gap is left in the middle so that they are not affected by the excessive temperature rise of the unit's exhaust air.

[0037] Example 2:

[0038] like Figures 1-4 As shown, the sheet-type sound-absorbing plate includes 1. a sound-absorbing plate, 2. a sound-absorbing sponge, 3. a high-density sound-absorbing sponge, and 4. a sound-absorbing plate connecting angle steel. In the design of the generator set's soundproof enclosure, Figures 1-4 The sound-absorbing plates used in this process are typically made of stamped, bent, and assembled steel plates. To facilitate the implementation of this sound-absorbing plate structure, an assembly method is preferable. Figures 1-4 The sound-absorbing sheet (1) and the connecting angle steel (4) are assembled into a whole using fixing bolts (2), and then high-density sound-absorbing sponge (3) is attached to both sides. Figure 2 As shown, the assembled sound-absorbing sheet is fixed to the top exhaust cover plate (6) using hexagonal stainless steel bolts, stainless steel flat washers, and stainless steel elastic washers.

[0039] In this example, inside the muffler compartment, the muffler emits noise from the bottom. The noise is reduced by sound-absorbing plates before it reaches the exhaust cover. Figures 5-7 As shown in the diagram, sound waves generate noise as they travel from the muffler compartment to the top. Installing a silencing fin assembly above the top of the muffler reduces noise; tests have shown significant improvement before and after installation. Figures 5-7 The diagram shows a noise reduction structure where the generator set silencer plate is installed in the muffler exhaust chamber, but this utility model is not limited to its application on this component.

Claims

1. A generator set top exhaust noise reduction structure, characterized in that: The silencer structure is a silencer (4a) located at the exhaust end of the generator (1a) of the generator set. Multiple silencer plates (1) are arranged in parallel inside the silencer. The surface of the silencer plates is covered with a sound-absorbing layer, and exhaust gaps are reserved between the silencer plates.

2. The generator set top exhaust noise reduction structure according to claim 1, characterized in that: The sound-absorbing layer is a silent high-density sponge layer (3).

3. The generator set top exhaust noise reduction structure according to claim 1, characterized in that: The generator is equipped with a diesel engine (2a), and the exhaust port of the diesel engine is connected to the lower part of the generator's exhaust end.

4. The generator set top exhaust noise reduction structure according to claim 3, characterized in that: A top exhaust cover (6a) is provided at the upper part of the generator exhaust end, and a radiator (3a) is provided at the exhaust port of the diesel engine.

5. The generator set top exhaust noise reduction structure according to claim 3, characterized in that: The sound-absorbing plate is vertically arranged on the upper part of the muffler.

6. The generator set top exhaust noise reduction structure according to claim 5, characterized in that: The top of the silencer plate is connected to the top exhaust cover of the generator exhaust end.

7. The generator set top exhaust noise reduction structure according to claim 5, characterized in that: The sound-absorbing plate forms a sound wave propagation channel within the silencer; when the sound wave propagates through the sound-absorbing plate, its sound wave energy is converted into the vibration of the sound-absorbing plate and thus reduced; both sides of the exhaust slit are sound-absorbing layers of the sound-absorbing plate, which absorb the sound waves propagating through the exhaust slit.

8. The generator set top exhaust noise reduction structure according to claim 1, characterized in that: The sound-absorbing plate is a sheet-type sound-absorbing plate formed by stamping, bending and assembling steel plates (5a).

9. The generator set top exhaust noise reduction structure according to claim 7, characterized in that: Each silencer plate is connected to the other by silencer plate angle steel (4) and fixed inside the silencer compartment.

10. A generator set top exhaust noise reduction structure according to claim 9, characterized in that: Each sound-absorbing plate is connected to the sound-absorbing plate angle steel by fixing bolts (2).

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