Rainproof noise reduction and smoke exhaust device for diesel generating set

Abstract

The application relates to a rainproof noise reduction and smoke exhaust device of a diesel generating set and relates to the technical field of auxiliary equipment of the diesel generating set, and the device comprises a diesel generating set box. When the sound absorption plate is damaged or needs to be replaced according to a new noise environment, the sealing door at the front side of the processing cavity is first opened to expose the internal structure; then the first U-shaped limiting block is pushed to the left side by using a tool, at the moment, the first U-shaped limiting block overcomes the elastic force of the spring, drives the sliding block and the ball to roll in the sliding groove of the first U-shaped shell, makes the first U-shaped limiting block move to the left, and loosens the limitation on the sound absorption plate; after the first U-shaped limiting block moves to the appropriate position, the damaged or unsuitable sound absorption plate is taken out from the middle of the first U-shaped limiting block and the second U-shaped limiting block; according to the current noise environment, the sound absorption plate with the appropriate sound absorption hole specification is selected and placed in the corresponding position, the first U-shaped limiting block is loosened, the spring restores the deformation, the first U-shaped limiting block is pushed to move to the right, and the sound absorption plate is clamped and fixed again.

Description

Technical Field

[0001] This application relates to the field of auxiliary equipment technology for diesel generator sets, and in particular to a rainproof, noise-reducing, and smoke-exhausting device for diesel generator sets. Background Technology

[0002] A diesel generator is a small power generation device that uses diesel fuel and a diesel engine as the prime mover to drive the generator to generate electricity. The complete set of units generally consists of a diesel engine, generator, control box, fuel tank, starting and control batteries, protection devices, emergency cabinet and other components.

[0003] An existing patent (publication number: CN221144551U) discloses a rainproof, noise-reducing, and smoke-exhausting device for diesel generator sets, relating to the technical field of diesel generator sets. It includes: a mounting plate, a connecting pipe fixedly connected to the mounting plate, a processing chamber fixedly connected to the upper part of the connecting pipe, and an exhaust pipe fixedly connected to the upper part of the processing chamber. The exhaust pipe has a downward-curved rainproof bend. A sound insulation component is installed inside the connecting pipe and the processing chamber. A sound-absorbing panel one and a sound-absorbing panel two are fixedly connected inside the sound insulation component. Through the sound insulation component, sound-absorbing panel one, and sound-absorbing panel two, the exhaust airflow can be effectively insulated and absorbed, resulting in excellent noise reduction.

[0004] While the aforementioned comparative cases possess some noise reduction capabilities, they exhibit significant shortcomings in sound absorption. The sound-absorbing panel structure within the sound insulation components of these devices is fixed, and the sound-absorbing hole specifications are uniform. This prevents targeted treatment based on the complex noise frequency bands generated by diesel generator sets under different usage scenarios, resulting in low sound absorption efficiency and failing to meet diverse noise reduction needs. Furthermore, when the sound-absorbing panel is damaged or its performance deteriorates, its non-removable nature necessitates the replacement of the entire sound insulation component, increasing maintenance and time costs. Therefore, this paper proposes a rainproof, noise-reducing, and smoke-exhausting device for diesel generator sets. Utility Model Content

[0005] The purpose of this application is to provide a rainproof, noise-reducing, and smoke-exhausting device for diesel generator sets, which features easy replacement of sound-absorbing panels.

[0006] This application provides a rainproof, noise-reducing, and smoke-exhausting device for a diesel generator set, employing the following technical solution: It includes a diesel generator box, with an installation plate connected to the upper end of the diesel generator. A connecting pipe is fixedly connected to the upper end of the installation plate, and a processing chamber is fixedly connected to the upper end of the connecting pipe. A sound-absorbing plate is installed inside the processing chamber. A first U-shaped shell is fixedly connected to the left side of the processing chamber. A telescopic rod and a spring are fixedly connected inside the first U-shaped shell, with the spring sleeved on the surface of the telescopic rod. A first U-shaped limiting block is fixedly connected to the right end of the telescopic rod and the spring. Slider blocks are fixedly connected to the left ends of both the upper and lower sides of the first U-shaped limiting block. A groove is opened inside the first U-shaped shell. A ball bearing is rotatably connected to the end of the slider away from the first U-shaped limiting block, and the ball bearing is rotatably disposed inside the groove. A second U-shaped limiting block is fixedly connected to the right side of the processing chamber. The sound-absorbing plate is installed between the first U-shaped limiting block and the second U-shaped limiting block. A sealing door is provided on the front side of the processing chamber. By adopting the above technical solution, a main exhaust channel is constructed by setting up a diesel generator box, mounting plate, connecting pipes, and treatment chamber, achieving a rational planning of the exhaust path. Inside the treatment chamber, the first U-shaped shell, telescopic rod, spring, first U-shaped limiting block, slider, ball bearings, and slide groove on the left side, and the second U-shaped limiting block on the right side, together form a detachable sound-absorbing panel installation structure. The spring provides continuous limiting pressure to the first U-shaped limiting block, ensuring the sound-absorbing panel is securely installed; the slider and ball bearings roll within the slide groove, making disassembly and replacement of the sound-absorbing panel convenient. The sealed door on the front of the treatment chamber facilitates maintenance and adjustment of the internal structure. Overall, the system realizes the basic construction of the exhaust channel and the flexible installation of the sound-absorbing panel, providing conditions for subsequent noise reduction.

[0007] Preferably, the upper end of the processing cavity is connected to a discharge pipe, and the upper end of the discharge pipe is provided with a downward-curved rainproof bend.

[0008] By adopting the above technical solution, the discharge pipe connected to the upper end of the cavity and the downward-curving rainproof bend at the upper end form a smoke exhaust outlet structure. The downward-curving design of the rainproof bend, utilizing gravity and structural characteristics, effectively prevents rainwater from flowing back into the device, ensuring that the device can operate normally even in rainy weather, significantly improving the device's rainproof performance and extending its service life.

[0009] Preferably, the inner surface of the processing cavity is coated with a composite coating that is resistant to high temperatures and corrosion and has sound-absorbing properties.

[0010] By adopting the above technical solution, the composite coating on the inner surface of the treatment chamber, which is resistant to high temperatures and corrosion and has sound-absorbing properties, can resist the erosion of the inner wall of the treatment chamber by high-temperature and corrosive substances during smoke exhaust, thus extending the service life of the chamber. At the same time, the sound-absorbing particles in the coating can initially absorb smoke exhaust noise, working in conjunction with other noise reduction structures to improve the overall noise reduction effect, achieving the dual functions of corrosion prevention and initial noise reduction.

[0011] Preferably, the surface of the sound-absorbing panel is covered with a sound-insulating pad made of polyester fiber.

[0012] By adopting the above technical solution, the polyester fiber sound-absorbing pad covering the surface of the sound-absorbing panel, with its porous structure, can effectively absorb and scatter sound waves. When smoke passes through, the sound-absorbing pad further treats the noise, reducing the noise intensity. Combined with the composite coating and detachable sound-absorbing panel inside the treatment cavity, it forms a multi-layer noise reduction system, significantly improving the noise reduction performance of the device and reducing the impact of noise on the surrounding environment.

[0013] Preferably, the spring is made of stainless steel alloy material, which has high strength, high elasticity and excellent corrosion resistance, ensuring that it maintains stable elastic deformation capacity during long-term use and provides continuous and reliable limiting pressure for the first U-shaped limiting block.

[0014] By adopting the above technical solution, the spring is made of stainless steel alloy, possessing high strength, high elasticity, and excellent corrosion resistance. During long-term use, it maintains stable elastic deformation capacity, continuously providing reliable limiting pressure to the first U-shaped limiting block, ensuring the sound-absorbing panel is securely installed. Even in complex operating environments, it guarantees the stability of the sound-absorbing panel installation structure, preventing the sound-absorbing panel from loosening due to spring performance degradation, thus avoiding any impact on noise reduction effectiveness.

[0015] Preferably, a silicone rubber gasket is provided at the connection between the sealing door and the processing chamber. It has good flexibility and sealing performance, and can fit tightly between the sealing door and the processing chamber to prevent smoke leakage and external noise intrusion. It also has the characteristics of aging resistance and high temperature resistance to ensure the sealing effect under long-term use.

[0016] By adopting the above technical solution, the silicone rubber sealing gasket at the connection between the sealing door and the processing chamber has good flexibility and sealing performance, enabling it to fit tightly against the sealing door and the processing chamber, effectively preventing smoke leakage from the connection and blocking external noise from entering the device. Furthermore, its aging resistance and high-temperature resistance ensure that it maintains a good sealing effect throughout long-term use, keeping the internal noise reduction environment stable and improving overall noise reduction performance and the reliability of device operation.

[0017] Preferably, the mounting plate has four sets of fixing holes on its surface, arranged in a rectangular shape inside the mounting plate. The mounting plate is fixedly connected to the upper surface of the diesel generator box through the fixing holes and bolts. An annular sealing gasket is provided at the connection between the mounting plate and the diesel generator box.

[0018] By adopting the above technical solution, the mounting holes on the surface of the mounting plate, combined with bolts, securely fix the mounting plate to the diesel generator box, ensuring stable installation of the device. The annular sealing gasket at the connection fills the gaps to prevent exhaust gas leakage from the interface, ensuring the airtightness of the exhaust path and avoiding energy waste and environmental pollution caused by exhaust gas leakage. It also helps maintain stable internal pressure within the device, ensuring smooth exhaust.

[0019] Preferably, the interior of the rainproof bend is provided with a corrosion-resistant coating.

[0020] By adopting the above technical solution, the corrosion-resistant coating inside the rainproof bend can effectively resist the erosion of corrosive substances in the exhaust smoke, protect the structural integrity of the rainproof bend, and extend its service life. Even under long-term exposure to corrosive exhaust smoke, it can reduce damage and maintenance needs of the rainproof bend, lower maintenance costs, and ensure that the rainproof function of the rainproof bend functions normally.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This is a rainproof, noise-reducing, and smoke-exhausting device for diesel generator sets. The spring is made of stainless steel alloy, possessing high strength, high elasticity, and excellent corrosion resistance. It can maintain stable elastic deformation capacity during long-term use, continuously providing reliable limiting pressure for the first U-shaped limiting block. When the sound-absorbing panel is damaged or needs to be replaced for a new noise environment, first open the sealed door on the front side of the processing chamber to expose the internal structure; then use a tool to push the first U-shaped limiting block to the left. At this time, the first U-shaped limiting block will overcome the elastic force of the spring, causing the slider and ball to roll in the groove of the first U-shaped shell, causing the first U-shaped limiting block to move to the left, releasing the limiting force on the sound-absorbing panel; after the first U-shaped limiting block moves to the appropriate position, remove the damaged or incompatible sound-absorbing panel from between the first and second U-shaped limiting blocks; according to the current noise environment, select a sound-absorbing panel with a suitable sound-absorbing hole specification and place it in the corresponding position, release the first U-shaped limiting block, the spring returns to its deformation, pushes the first U-shaped limiting block to the right, and re-clamps and fixes the sound-absorbing panel, completing the replacement. The entire process does not require replacing all soundproofing components, significantly reducing maintenance and time costs. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present application. Figure 2 This is a schematic diagram of the front cross-section of the cavity in this application; Figure 3 for Figure 2 Schematic diagram of the structure at point A; Figure 4 This is a three-dimensional enlarged structural diagram of the installation disk of this application; Figure 5 This is a schematic diagram of the internal structure of the rainproof bend in this application.

[0023] In the picture: 1. Diesel generator box; 2. Mounting plate; 3. Connecting pipe; 4. Treatment cavity; 5. Sound-absorbing panel; 6. First U-shaped shell; 7. Telescopic rod; 8. Spring; 9. First U-shaped limiting block; 10. Sliding block; 11. Slide groove; 12. Ball bearing; 13. Second U-shaped limiting block; 14. Sealing door; 15. Discharge pipe; 16. Rainproof bend; 17. Annular sealing gasket; 18. Fixing hole; 19. Corrosion-resistant coating. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: A rainproof, noise-reducing, and smoke-exhausting device for a diesel generator set, referring to... Figure 1 , Figure 2 and Figure 3The system includes a diesel generator box 1, a mounting plate 2 connected to the upper end of the diesel generator, a connecting pipe 3 fixedly connected to the upper end of the mounting plate 2, a processing chamber 4 fixedly connected to the upper end of the connecting pipe 3, a sound-absorbing plate 5 installed inside the processing chamber 4, a first U-shaped shell 6 fixedly connected to the left side inside the processing chamber 4, a telescopic rod 7 and a spring 8 fixedly connected inside the first U-shaped shell 6, the spring 8 being sleeved on the surface of the telescopic rod 7, a first U-shaped limiting block 9 fixedly connected to the right end of the telescopic rod 7 and the spring 8, and sliding blocks fixedly connected to the left ends of both the upper and lower sides of the first U-shaped limiting block 9. Block 10 has a sliding groove 11 inside the first U-shaped shell 6. A ball bearing 12 is rolled inside the slider 10 at the end furthest from the first U-shaped limiting block 9. The ball bearing 12 is rolled within the sliding groove 11. A second U-shaped limiting block 13 is fixedly connected to the right side of the processing cavity 4. The sound-absorbing panel 5 is installed between the first U-shaped limiting block 9 and the second U-shaped limiting block 13. A sealing door 14 is provided at the front of the processing cavity 4. The diesel generator box 1, mounting plate 2, connecting pipe 3, and processing cavity 4 form the main exhaust channel, achieving a reasonable exhaust path. The first U-shaped shell 6, telescopic rod 7, spring 8, first U-shaped limiting block 9, slider 10, ball bearing 12, and sliding groove 11 on the left side of the processing cavity 4, and the second U-shaped limiting block 13 on the right side, together form the detachable sound-absorbing panel 5 installation structure. Spring 8 provides continuous limiting pressure to the first U-shaped limiting block 9, ensuring the sound-absorbing panel 5 is securely installed; slider 10 and ball bearing 12 roll within the slide groove 11, making it convenient to disassemble and replace the sound-absorbing panel 5. The sealing door 14 on the front side of the processing cavity 4 facilitates maintenance and adjustment of the internal structure. Overall, it realizes the basic construction of the smoke exhaust channel and the flexible installation of the sound-absorbing panel 5, providing conditions for subsequent noise reduction.

[0026] Reference Figure 1 and Figure 2 The upper end of the treatment chamber 4 is connected to an exhaust pipe 15, and the upper end of the exhaust pipe 15 has a downward-curved rainproof bend 16. The inner surface of the treatment chamber 4 is coated with a composite coating that is resistant to high temperatures and corrosion and has sound-absorbing properties. The exhaust pipe 15 connected to the upper end of the treatment chamber 4 and the downward-curved rainproof bend 16 form a smoke exhaust outlet structure. The downward-curved design of the rainproof bend 16 utilizes gravity and structural characteristics to effectively prevent rainwater from flowing back into the device, ensuring that the device can operate normally in rainy weather, significantly improving the device's rainproof performance and extending its service life. The high-temperature resistant, corrosion-resistant, and sound-absorbing composite coating on the inner surface of the treatment chamber 4 can resist the erosion of the inner wall of the treatment chamber 4 by high-temperature and corrosive substances during the smoke exhaust process, extending the service life of the chamber. At the same time, the sound-absorbing particles in the coating can initially absorb the smoke exhaust noise, working in conjunction with other noise reduction structures to improve the overall noise reduction effect, achieving the dual functions of corrosion prevention and initial noise reduction.

[0027] Reference Figure 1 , Figure 2and Figure 3 The sound-absorbing panel 5 is covered with a sound-insulating pad made of polyester fiber. The spring 8 is made of stainless steel alloy, which combines high strength, high elasticity, and excellent corrosion resistance, ensuring stable elastic deformation during long-term use and providing continuous and reliable limiting pressure for the first U-shaped limit block 9. A silicone rubber sealing gasket is installed at the connection between the sealing door 14 and the processing chamber 4, which has good flexibility and sealing performance, and can tightly fit the sealing door 14 and the processing chamber 4 to prevent smoke leakage and external noise intrusion. It also has the characteristics of aging resistance and high temperature resistance, ensuring the sealing effect under long-term use. The polyester fiber sound-insulating pad covering the surface of the sound-absorbing panel 5 can effectively absorb and scatter sound waves due to its porous structure. When smoke passes through, the sound-insulating pad further treats the noise and reduces the noise intensity. In combination with the composite coating inside the processing chamber 4 and the removable sound-absorbing panel 5, a multi-layer noise reduction system is formed, which greatly improves the noise reduction performance of the device and reduces the impact of noise on the surrounding environment. The spring 8 is made of stainless steel alloy, which has high strength, high elasticity, and excellent corrosion resistance. During long-term use, it maintains stable elastic deformation capacity, continuously providing reliable limiting pressure for the first U-shaped limiting block 9, ensuring the sound-absorbing panel 5 is securely installed. Even in complex operating environments, it ensures the stability of the sound-absorbing panel 5 installation structure, preventing the sound-absorbing panel 5 from loosening due to the deterioration of the spring 8, which would affect the noise reduction effect. The silicone rubber sealing gasket at the connection between the sealing door 14 and the processing cavity 4 has good flexibility and sealing performance, and can tightly fit the sealing door 14 and the processing cavity 4, effectively preventing smoke leakage from the connection and blocking external noise from entering the device. In addition, its aging resistance and high temperature resistance ensure that it maintains a good sealing effect throughout long-term use, maintains a stable noise reduction environment inside the device, and improves the overall noise reduction performance and the reliability of device operation.

[0028] Reference Figure 1 , Figure 4 and Figure 5The mounting plate 2 has four sets of fixing holes 18 on its surface, arranged in a rectangular shape inside the mounting plate 2. The mounting plate 2 is fixedly connected to the upper surface of the diesel generator box 1 through the fixing holes 18 and bolts. An annular sealing gasket 17 is provided at the connection between the mounting plate 2 and the diesel generator box 1. The rainproof bend 16 is provided with a corrosion-resistant coating 19. The fixing holes 18 on the surface of the mounting plate 2, together with the bolts, securely fix the mounting plate 2 to the diesel generator box 1, ensuring stable installation of the device. The annular sealing gasket 17 at the connection fills the gaps to prevent exhaust gas from leaking from the interface, ensuring the sealing of the exhaust gas path, avoiding energy waste and environmental pollution caused by exhaust gas leakage, and also helping to maintain stable internal pressure of the device, ensuring smooth exhaust gas flow. The corrosion-resistant coating 19 provided inside the rainproof bend 16 can effectively resist the erosion of corrosive substances in the exhaust gas, protect the structural integrity of the rainproof bend 16, and extend its service life. Even under long-term exposure to corrosive exhaust fumes, it can reduce damage and maintenance needs of the rainproof bend 16, lower maintenance costs, and ensure that the rainproof function of the rainproof bend 16 is properly performed.

[0029] In this embodiment, the spring 8 is made of stainless steel alloy material, which has high strength, high elasticity and excellent corrosion resistance. It can maintain stable elastic deformation capability during long-term use and continuously provide reliable limiting pressure for the first U-shaped limiting block 9. When the sound-absorbing panel 5 is damaged or needs to be replaced for a new noise environment, first open the sealing door 14 on the front of the processing chamber 4 to expose the internal structure; then use a tool to push the first U-shaped limiting block 9 to the left. At this time, the first U-shaped limiting block 9 will overcome the elastic force of the spring 8, causing the slider 10 and the ball bearing 12 to roll in the groove 11 of the first U-shaped shell 6, causing the first U-shaped limiting block 9 to move to the left and release the limiting force on the sound-absorbing panel 5; after the first U-shaped limiting block 9 moves to the appropriate position, remove the damaged or incompatible sound-absorbing panel 5 from between the first U-shaped limiting block 9 and the second U-shaped limiting block 13; according to the current noise environment, select a sound-absorbing panel 5 with a suitable sound-absorbing hole specification and place it in the corresponding position, release the first U-shaped limiting block 9, the spring 8 will return to its deformation, push the first U-shaped limiting block 9 to the right, and re-clamp and fix the sound-absorbing panel 5 to complete the replacement. The entire process does not require replacing the entire sound insulation component, significantly reducing maintenance and time costs.

[0030] The implementation principle of this application embodiment is as follows: The high-temperature exhaust gas generated by the operation of the diesel generator set first enters the connecting pipe 3 from the diesel generator box 1 through the mounting plate 2. The mounting plate 2 is fixedly connected to the diesel generator box 1 through the fixing hole 18 and the bolts. The annular sealing gasket 17 at the connection ensures that the exhaust gas will not leak from the interface. The exhaust gas enters the processing chamber 4 through the connecting pipe 3. The composite coating with high temperature resistance, corrosion resistance and sound absorption function on the inner surface of the processing chamber 4 uses the sound-absorbing particles in the coating to initially absorb the exhaust noise. At the same time, the sound-absorbing plate 5 installed between the first U-shaped limiting block 9 and the second U-shaped limiting block 13 begins to play its role. The polyester fiber sound insulation pad covering the surface of the sound-absorbing plate 5, with its porous structure, further absorbs and scatters sound waves and reduces the noise intensity. When facing complex noise frequency bands in different usage scenarios, the appropriate sound-absorbing plate 5 can be selected according to actual needs. With the assistance of the structure composed of the first U-shaped shell 6, telescopic rod 7, spring 8, slider 10, ball 12 and slide groove 11, the sound-absorbing plate 5 can be easily disassembled and replaced. For example, when the sound-absorbing panel 5 needs to be replaced, open the sealing door 14 on the front side of the processing chamber 4, and use a tool to push the first U-shaped limiting block 9 to the left. This overcomes the elastic force of the spring 8, causing the slider 10 and ball bearing 12 to roll within the groove 11 of the first U-shaped shell 6, moving the first U-shaped limiting block 9 to the left and releasing the limiting force on the sound-absorbing panel 5, allowing it to be removed. After replacement, release the first U-shaped limiting block 9, the spring 8 returns to its original deformation, and pushes the first U-shaped limiting block 9 to the right, re-clamping the sound-absorbing panel 5. The smoke, after noise reduction treatment, enters the exhaust pipe 15 from the processing chamber 4 and is finally discharged through the downward-curving rainproof bend 16 at the upper end of the exhaust pipe 15. The corrosion-resistant coating 19 inside the rainproof bend 16 can resist the erosion of corrosive substances in the smoke, and the downward-curving structural design effectively prevents rainwater from flowing back into the device. Meanwhile, the silicone rubber sealing gasket at the connection between the sealing door 14 and the processing chamber 4 fits tightly to prevent smoke leakage and external noise intrusion, ensuring stable operation of the device.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rainproof, noise-reducing, and smoke-exhausting device for a diesel generator set, comprising a diesel generator box (1), characterized in that: The upper end of the diesel generator is connected to an installation plate (2), and the upper end of the installation plate (2) is fixedly connected to a connecting pipe (3). The upper end of the connecting pipe (3) is fixedly connected to a processing chamber (4). The processing chamber (4) is equipped with a sound-absorbing plate (5). The left side of the processing chamber (4) is fixedly connected to a first U-shaped shell (6). The first U-shaped shell (6) is fixedly connected to a telescopic rod (7) and a spring (8). The spring (8) is sleeved on the surface of the telescopic rod (7). The right end of the telescopic rod (7) and the spring (8) is fixedly connected to a first U-shaped limiting block (9). The first U-shaped limiting block (9) has a slider (10) fixedly connected to the left end of both the upper and lower sides. The first U-shaped shell (6) has a sliding groove (11) inside. The slider (10) is connected to a ball (12) rolling inside the end away from the first U-shaped limiting block (9). The ball (12) is rolled inside the sliding groove (11). The processing cavity (4) has a second U-shaped limiting block (13) fixedly connected to the right side inside. The sound-absorbing plate (5) is installed between the first U-shaped limiting block (9) and the second U-shaped limiting block (13). The processing cavity (4) has a sealing door (14) on the front side.

2. The rainproof, noise-reducing, and smoke-exhausting device for a diesel generator set according to claim 1, characterized in that: The upper end of the processing cavity (4) is connected to a discharge pipe (15), and the upper end of the discharge pipe (15) is provided with a downward-curved rainproof bend (16).

3. The rainproof, noise-reducing, and smoke-exhausting device for a diesel generator set according to claim 1, characterized in that: The inner surface of the processing cavity (4) is coated with a composite coating that is resistant to high temperature and corrosion and has sound absorption function.

4. The rainproof, noise-reducing, and smoke-exhausting device for a diesel generator set according to claim 1, characterized in that: The surface of the sound-absorbing panel (5) is covered with a sound-insulating pad made of polyester fiber.

5. The rainproof, noise-reducing, and smoke-exhausting device for a diesel generator set according to claim 1, characterized in that: The spring (8) is made of stainless steel alloy material, which has high strength, high elasticity and excellent corrosion resistance, ensuring that it maintains stable elastic deformation capacity during long-term use and provides continuous and reliable limiting pressure for the first U-shaped limit block (9).

6. The rainproof, noise-reducing, and smoke-exhausting device for a diesel generator set according to claim 1, characterized in that: A silicone rubber gasket is provided at the connection between the sealing door (14) and the processing chamber (4). It has good flexibility and sealing performance, and can fit tightly between the sealing door (14) and the processing chamber (4) to prevent smoke leakage and external noise intrusion. It also has the characteristics of aging resistance and high temperature resistance to ensure the sealing effect under long-term use.

7. The rainproof, noise-reducing, and smoke-exhausting device for a diesel generator set according to claim 1, characterized in that: The mounting plate (2) has four sets of fixing holes (18) on its surface. The mounting plate (2) is fixed to the upper surface of the diesel generator box (1) through the fixing holes (18) and bolts. An annular sealing gasket (17) is provided at the connection between the mounting plate (2) and the diesel generator box (1).

8. The rainproof, noise-reducing, and smoke-exhausting device for a diesel generator set according to claim 2, characterized in that: The rainproof bend (16) is provided with a corrosion-resistant coating (19).

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