Noise reduction and waste removal integrated waste discharge pipeline for diesel generating set
By introducing catalysts and silence pipes into the smoke exhaust system of the diesel generator set, combined with corrugated pipes and exhaust pipes, the problem that traditional smoke exhaust systems cannot effectively remove harmful gases, achieving exhaust gas purification and noise reduction, and improving environmental protection and comfort.
Patent Information
- Application Number
- CN202421742333.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The smoke exhaust system of traditional diesel generator sets only has the function of sound silence and noise reduction, and cannot effectively remove harmful gases from the discharged exhaust gas, resulting in environmental pollution.
A integrated waste exhaust pipe with silence and waste removal was designed. By setting up a catalyst between the exhaust gas inlet and the muffler, combining corrugated pipe, silence pipe and exhaust pipe, the exhaust gas purification and noise reduction are achieved.
This solution can not only effectively remove harmful gases in the exhaust gas, make the exhaust gas harmless, but also reduce airflow noise and improve environmental protection and comfort.
Smart Images

Figure CN222759850U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of generator set manufacturing, in particular to a noise-reducing and waste-removing integrated exhaust pipe for a diesel generator set. Background Art
[0002] The core of the design of the exhaust silencer system of traditional diesel power station units is the reasonable exhaust pipe design to ensure that the exhaust gas can be discharged quickly and effectively to avoid the accumulation of safety hazards inside the system. It also reduces the noise generated by the exhaust of the generator set and improves the comfort of the surrounding environment. However, it ignores the fact that the exhaust gas may contain corrosive gases and other harmful gases. As people's environmental awareness increases, all walks of life are constantly putting forward environmental protection requirements for generator sets.
[0003] The exhaust system of traditional diesel generator sets only has a silencer and noise reduction device, which discharges untreated exhaust gas directly into the atmosphere, causing direct or indirect harm to the environment.
[0004] In view of this, the technical solution proposes a noise-reducing and waste-removing integrated exhaust pipe for diesel generator sets, which combines the noise-reducing pipe of the catalytic device to achieve harmless and noise-reducing emission characteristics. The overall structure is simple, and the installation and maintenance procedures of each pipe are simple. Utility Model Content
[0005] The technical solution of the utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the main purpose of the utility model is to provide a noise-reducing and waste-removing integrated exhaust pipe for diesel generator sets, aiming to solve the problem that the exhaust pipe for diesel generator sets in the prior art does not have the noise-reducing and harm-removing integrated characteristics and cannot meet the environmental emission requirements.
[0006] To achieve the above-mentioned purpose, the utility model provides an integrated exhaust pipe with silencer and waste removal for a diesel generator set, including a connecting pipe for communicating with the exhaust part of the unit, and a bellows connected to the other end of the connecting pipe for buffering the intake pressure, the other end of the bellows is connected to a catalyst for purifying harmful gases, the other end of the catalyst is connected to a silencer for reducing the airflow noise inside the pipe, and the other end of the silencer is connected to an exhaust pipe for exhausting gas.
[0007] As a further solution of the utility model, the silencer pipe is a pipe structure with sound-absorbing cotton filled inside.
[0008] As a further solution of the utility model, the catalyst is provided with a metal honeycomb-shaped pipeline structure inside, and the surface of the metal honeycomb structure is coated with an active catalyst layer.
[0009] As a further solution of the utility model, a gasket for improving the airtightness is provided between each pipe.
[0010] As a further solution of the present invention, the gasket is a graphite gasket structure.
[0011] As a further solution of the utility model, the bellows is a full metal pipe structure.
[0012] The beneficial effects of the utility model are as follows:
[0013] The utility model proposes a noise-reducing and waste-removing integrated exhaust pipe for a diesel generator set. The catalyst disposed between the exhaust gas inlet and the muffler not only eliminates harmful gases, but also reduces the airflow noise from the connecting pipe and the catalyst, so that the final exhausted gas is harmless and has low working noise. The noise-reducing and waste-removing integrated exhaust pipe structure occupies less space and is easy to assemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model technical solution or the utility model technical solution in the prior art, the drawings required for use in the embodiments or the prior art descriptions will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model technical solution. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0015] Figure 1 This is a schematic diagram of the disassembled structure of the utility model product.
[0016] Figure 2 This is a schematic diagram of the internal airflow movement when the product of the utility model is working.
[0017] Figure 3 It is an enlarged schematic diagram of the metal honeycomb structure inside the catalyst in the utility model.
[0018] [Main parts / assembly reference numerals]
[0019] Label name Label name 1 Muffler 12 Connecting pipe 10 Catalyst 13 Exhaust pipe 11 Bellows 14 Gasket DETAILED DESCRIPTION
[0020] as follows:
[0021] Please see attached Figure 1-3 ,
[0022] The main structure includes a connecting pipe 12 for connecting with the exhaust part of the unit, and a bellows 11 connected to the other end of the connecting pipe 12 for buffering the intake pressure. The other end of the bellows 11 is connected to a catalyst 10 for purifying harmful gases. The other end of the catalyst 10 is connected to a silencer 1 for reducing the air flow noise inside the pipeline. The other end of the silencer 1 is connected to an exhaust pipe 13 for exhausting gas.
[0023] Here’s how it works:
[0024] The exhaust gas from the generator set is introduced into the catalyst 10 through the connecting pipe 12, and the harmful gas is converted into a relatively harmless substance through the metal honeycomb filter inside the catalyst 10 (including the catalytic reaction generated after the metal and the exhaust gas come into contact). Finally, it passes through the muffler pipe 1 and is discharged from the exhaust pipe 13. It not only has the function of eliminating harmful gases, but also has the function of reducing the airflow noise from the connecting pipe 12 and the catalyst 10, so that the final exhausted gas is harmless, which has a positive environmental protection effect.
[0025] A preferred embodiment of the present invention: the muffler 1 is a pipe structure filled with sound-absorbing cotton.
[0026] There are various means to reduce noise. In this technical solution, sound-absorbing cotton is used, which not only has the characteristics of reducing noise, but also has a certain filtering effect to further eliminate residual harmful gases.
[0027] A preferred embodiment of the present invention is that the catalyst 10 has a metal honeycomb-shaped pipeline structure inside, and the surface of the metal honeycomb structure is coated with an active catalyst layer.
[0028] The metal honeycomb structure has the function of filtering harmful gases, and at the same time increases the contact area between the active catalyst layer and the harmful gases, making the catalytic decomposition reaction of the harmful gases more complete.
[0029] A preferred embodiment of the present invention is that a gasket 14 for improving airtightness is arranged between each pipe. The gasket 14 is a graphite gasket 14 structure.
[0030] The graphite pad can block the entry of external water vapor and dust, thus playing a sealing role.
[0031] A preferred embodiment of the present invention is that the bellows 11 is a full metal pipe structure.
[0032] When the airflow from the unit equipment is received through the connecting pipe 12, the pressure is relatively high, and the pressure can be effectively reduced through the bellows 11, reducing the impact on the pipeline and equipment. The metal structure of the bellows further enhances its pressure bearing strength.
[0033] The above are only preferred embodiments of the technical solution of the utility model, and do not limit the patent scope of the technical solution of the utility model. All equivalent structural changes made by using the contents of the technical solution description and drawings of the utility model under the conception of the technical solution of the utility model, or direct / indirect application in other related technical fields are included in the patent protection scope of the technical solution of the utility model.
Claims
1. A noise-reducing and waste-removing integrated exhaust pipe for a diesel generator set, characterized in that: It includes a connecting pipe for communicating with the exhaust part of the unit, and a bellows connected to the other end of the connecting pipe for buffering the intake pressure, the other end of the bellows is connected to a catalyst for purifying harmful gases, the other end of the catalyst is connected to a silencer for reducing the air flow noise inside the pipeline, and the other end of the silencer is connected to an exhaust pipe for exhausting gas.
2. The noise-reducing and waste-removing integrated exhaust pipe for a diesel generator set according to claim 1 is characterized in that: The silencer pipe is a pipe structure filled with sound-absorbing cotton.
3. The noise-reducing and waste-removing integrated exhaust pipe for a diesel generator set according to claim 1 is characterized in that: The catalyst is provided with a metal honeycomb-shaped pipeline structure inside, and the surface of the metal honeycomb structure is coated with an active catalyst layer.
4. The noise-reducing and waste-removing integrated exhaust pipe for a diesel generator set according to claim 1 is characterized in that: Gaskets are provided between each pipe to improve airtightness.
5. The noise-reducing and waste-removing integrated exhaust pipe for a diesel generator set according to claim 4 is characterized in that: The gasket is a graphite gasket structure.
6. The noise-reducing and waste-removing integrated exhaust pipe for a diesel generator set according to claim 1 is characterized in that: The bellows is a full metal pipe structure.