CN218894692U - Purifying silencer for diesel engine - Google Patents
Purifying silencer for diesel engine Download PDFInfo
- Publication number
- CN218894692U CN218894692U CN202221654402.XU CN202221654402U CN218894692U CN 218894692 U CN218894692 U CN 218894692U CN 202221654402 U CN202221654402 U CN 202221654402U CN 218894692 U CN218894692 U CN 218894692U
- Authority
- CN
- China
- Prior art keywords
- cover body
- cavity
- diesel engine
- air inlet
- inlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003584 silencer Effects 0.000 title claims abstract description 10
- 230000003197 catalytic effect Effects 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims abstract description 11
- 230000000087 stabilizing effect Effects 0.000 abstract description 11
- 239000007789 gas Substances 0.000 description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001868 water Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a purifying silencer for a diesel engine, which comprises a shell, an air inlet pipe, an air outlet pipe, a partition plate, a catalytic converter and a cover body, wherein the partition plate is arranged in the shell to divide the interior of the shell into an upper cavity and a lower cavity which are independent up and down, the air inlet pipe penetrates through the shell and extends into the lower cavity, the hollow two ends of the interior of the air inlet pipe are closed, the upper end of the air inlet pipe, which is positioned in the lower cavity, is uniformly distributed with a plurality of air outlets, the upper end of one end of the air inlet pipe, which is positioned in the shell, is provided with a plurality of air holes, the partition plate is uniformly distributed with a plurality of air holes, the catalytic converter is arranged in the upper cavity and divides the upper cavity into a pressure stabilizing expansion cavity and a pressure stabilizing cavity which are independent up and down, the air outlet pipe is connected with the shell and communicated with the pressure stabilizing cavity, the cover body is arranged on the shell, and the air inlet pipe and the air outlet pipe respectively penetrate through the cover body. The utility model aims to provide a purifying silencer for a diesel engine, which is used for carrying out targeted purifying treatment on tail gas generated during the operation of the diesel engine.
Description
Technical Field
The present utility model relates to the field of mufflers. More particularly, the present utility model relates to a purge muffler for a diesel engine.
Background
Diesel engines are internal combustion engines fuelled with diesel fuel. Diesel engines belong to the compression ignition type of engines, which are in turn often referred to as diesel engines under the name of the main inventor diesel. When the diesel engine works, the air sucked into the cylinder of the diesel engine is compressed to a higher degree due to the movement of the piston, and the temperature reaches 500-700 ℃. And then spraying the fuel oil into high-temperature air in a mist form, mixing the fuel oil with the high-temperature air to form combustible mixed gas, and automatically igniting and burning. The energy released in combustion acts on the piston top surface pushing the piston and being converted into rotational mechanical work by the connecting rod and crankshaft. The diesel engine is widely used in the mechanical field due to the advantages of the diesel engine in the aspects of dynamic property, economy, reliability and the like, and the diesel engine has higher use rate as a large country of agricultural production in China. Meanwhile, the environmental pollution caused by the diesel engine is more serious, especially the pollution of tail gas and noise. In order to control engine tail gas and noise pollution of a diesel engine, one of the most effective methods is to install a purifying silencer at present, but the purifying silencer used by the diesel engine at present cannot purify the tail gas of the diesel engine, and lacks the purifying silencer for the tail gas of the diesel engine.
Disclosure of Invention
The utility model aims to provide a purifying silencer for a diesel engine, which is used for carrying out targeted purifying treatment on tail gas generated during the operation of the diesel engine.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a purifying muffler for a diesel engine, comprising a housing, an intake pipe, an outlet pipe, a partition plate, a catalytic converter and a cover, wherein the partition plate is disposed in the housing to divide the interior thereof into an upper cavity and a lower cavity which are independent up and down, the intake pipe penetrates through the housing and extends into the lower cavity, both hollow ends of the interior of the intake pipe are closed, a plurality of outlet holes are uniformly distributed at the upper end of the portion of the intake pipe located in the lower cavity, an air inlet is formed at the upper end of one end of the housing, a plurality of air holes are uniformly distributed on the partition plate, the catalytic converter is disposed in the upper cavity and divides the upper cavity into a pressure stabilizing expansion cavity and a pressure stabilizing cavity which are independent up and down, the outlet pipe is connected to the housing and communicates with the pressure stabilizing cavity, the cover is covered on the housing, and the intake pipe and the outlet pipe respectively penetrate through the cover.
Preferably, in the purifying muffler for a diesel engine, an insulating layer is disposed on an inner wall of the upper cavity.
Preferably, in the purifying muffler for a diesel engine, the cover body includes an upper cover body, a lower cover body, a front cover body and a rear cover body, the front cover body and the rear cover body are detachably spliced into an accommodating cavity with upper and lower ends open and matched with the shell, a first notch for the air outlet pipe to pass is arranged on the front cover body, a mounting frame corresponding to the air inlet pipe is connected on the rear cover body, a second notch corresponding to the air inlet pipe is arranged on the mounting frame, the air inlet pipe passes through the mounting frame, an air inlet of the air inlet pipe is communicated with the second notch, and the upper cover body and the lower cover body are respectively detachably arranged at the openings of the upper and lower ends of the accommodating cavity.
Preferably, in the purifying muffler for a diesel engine, an upper flange and a lower flange are respectively provided at a lower end of the upper cover body and an upper end of the lower cover body, and upper and lower ends of the accommodating cavity extend into the upper flange and the lower flange respectively.
Preferably, in the purifying muffler for a diesel engine, the upper cover body, the lower cover body, the front cover body and the rear cover body are all provided with heat dissipation holes.
The purifying silencer for the diesel engine is simple in structure, the tail gas exhausted by the diesel engine is treated through the catalytic converter, and three harmful gases of CO, HC and NOx in the tail gas exhausted by the diesel engine are converted into harmless gases of carbon dioxide, nitrogen and water through oxidation reaction, reduction reaction, aqueous gas reaction and steam modification reaction under the action of a catalyst.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic view of a purifying muffler according to the present utility model;
FIG. 2 is a schematic view of the connection of the housing and the shell according to the present utility model;
FIG. 3 is a schematic view of a purifying muffler for a diesel engine according to the present utility model;
FIG. 4 is a schematic view of a purifying muffler for a diesel engine according to the present utility model;
fig. 5 is a schematic structural view of a separator according to the present utility model.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It should be noted that, in the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 to 5, the embodiment of the utility model provides a purifying muffler for a diesel engine, which comprises a shell 1, an air inlet pipe 2, an air outlet pipe 3, a partition board 4, a catalytic converter 5 and a cover body, wherein the partition board 4 is arranged in the shell 1 to divide the interior of the shell into an upper cavity and a lower cavity which are independent up and down, the air inlet pipe 2 penetrates through the shell 1 and extends into the lower cavity, two hollow ends in the air inlet pipe 2 are sealed, a plurality of air outlets 6 are uniformly distributed at the upper end of the inner part of the lower cavity, the air inlet pipe 2 is positioned at the upper end of one end of the shell 1, a plurality of air inlets 8 are uniformly distributed on the partition board 4, the catalytic converter 5 is arranged in the upper cavity and divides the upper cavity into a pressure stabilizing expansion cavity 9 and a pressure stabilizing cavity 10 which are independent up and down, the air outlet pipe 3 is connected with the shell 1 and communicated with the pressure stabilizing cavity 10, the cover body is covered on the shell 1, and the air outlet pipe 2 and the air outlet pipe 3 respectively penetrate through the cover body.
In this embodiment, the air inlet pipe 2 is communicated with the exhaust pipeline of the diesel engine, when the diesel engine works, exhaust gas of the diesel engine enters the lower cavity through a plurality of air outlets 6 at the upper end of the air inlet pipe 2, enters the pressure stabilizing cavity 10 through a plurality of air holes 8 on the partition board 4, is catalyzed by the catalytic converter 5 and the catalyst in the process, and is subjected to oxidation reaction, reduction reaction, aqueous gas reaction and steam modification reaction under the action of the catalyst, so that three harmful gases of CO, HC and NOx in the exhaust gas of the diesel engine are converted into harmless gases of carbon dioxide, nitrogen and water, and the carbon dioxide, the nitrogen and the water enter the pressure stabilizing expansion cavity 9 and are discharged out of the shell 1 through the air outlet pipe 3. The cover is provided outside the cover case 1, and the case 1 is protected.
Preferably, as another embodiment of the present utility model, an insulation layer 11 is disposed on the inner wall of the upper cavity.
In this embodiment, the heat-insulating layer 11 is disposed on the inner wall of the upper cavity, and the heat-insulating layer 11 is disposed between the catalytic converter 5 and the inner wall of the housing 1, so as to ensure the temperature of the catalytic converter 5 during operation and maintain the catalytic effect thereof.
Preferably, as another embodiment of the present utility model, the cover body includes an upper cover body 12, a lower cover body 13, a front cover body 14 and a rear cover body 15, the front cover body 14 and the rear cover body 15 are detachably spliced to form a containing cavity with openings at the upper end and the lower end, the front cover body 14 is provided with a first notch for the air outlet pipe 3 to pass through, the rear cover body 15 is connected with a mounting frame 16 corresponding to the air inlet pipe 2, a chamber matched with the air outlet pipe 3 is arranged in the mounting frame 16, one end of the chamber is opened, a second notch 17 corresponding to the air inlet pipe 2 is arranged at the other end of the chamber, the air outlet pipe 3 is inserted into the second notch 17 from the opening at one end of the chamber to be communicated with the air outlet 6 of the air outlet pipe 3 during installation, and the upper cover body 12 and the lower cover body 13 are respectively detachably arranged at the openings at the upper end and the lower end of the containing cavity.
In this embodiment, the front cover 14 and the rear cover 15 may be connected by using a self-drilling screw, and the front cover 14 and the rear cover 15 may be connected with the upper cover 12 and the lower cover 13 by using a self-drilling screw.
Preferably, as another embodiment of the present utility model, the lower end of the upper cover 12 and the upper end of the lower cover 13 are respectively provided with an upper flange 18 and a lower flange 19, and the upper and lower ends of the receiving cavity respectively extend into the upper flange 18 and the lower flange 19.
In this embodiment, the structure of the housing 1 is made more stable by extending the upper and lower ends of the accommodating chamber into the upper flange 18 and the lower flange 19, respectively.
Preferably, as another embodiment of the present utility model, heat dissipation holes are formed on the upper cover 12, the lower cover 13, the front cover 14 and the rear cover 15.
In this embodiment, heat dissipation holes are formed in the upper cover 12, the lower cover 13, the front cover 14 and the rear cover 15, so that heat dissipation is facilitated when the housing 1 works.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown, it is well suited to various fields of use for which the utility model is suited, and further modifications may be readily made by one skilled in the art, and the utility model is therefore not to be limited to the particular details and examples shown and described herein, without departing from the general concepts defined by the claims and the equivalents thereof.
Claims (5)
1. The utility model provides a purifying silencer for diesel engine, its characterized in that, including casing (1), intake pipe (2), outlet duct (3), baffle (4), catalytic converter (5) and cover body, baffle (4) set up in casing (1) with separate upper and lower cavity from top to bottom with its internal partition, intake pipe (2) pass casing (1) and extend to in the cavity down, intake pipe (2) inside cavity both ends are sealed, it is located the upper end equipartition of lower cavity inside has a plurality of gas outlets (6), intake pipe (2) are located inlet port (7) have been seted up to the one end upper end of casing (1), the equipartition has a plurality of bleeder vents (8) on baffle (4), catalytic converter (5) set up in the upper cavity and with upper cavity separates into upper and lower independent steady voltage inflation chamber (9) and steady voltage chamber (10), outlet duct (3) with casing (1) are last to be connected and with steady voltage chamber (10) intercommunication, it is located to cover casing (1) one end upper end of casing (2) has been seted up to the air inlet pipe (3).
2. A purifying muffler for a diesel engine as claimed in claim 1, characterized in that the inner wall of the upper chamber is provided with a heat-insulating layer (11).
3. The purifying muffler for a diesel engine according to claim 2, wherein the cover body comprises an upper cover body (12), a lower cover body (13), a front cover body (14) and a rear cover body (15), the front cover body (14) and the rear cover body (15) are detachably spliced into an accommodating cavity with openings at the upper end and the lower end, which is matched with the housing (1), a first notch for the air outlet pipe (3) to pass through is arranged on the front cover body (14), a mounting frame (16) corresponding to the air inlet pipe (2) is connected on the rear cover body (15), a second notch (17) corresponding to the air inlet pipe (2) is arranged on the mounting frame (16), the air inlet pipe (2) passes through the mounting frame (16), and an air inlet (7) of the air inlet pipe (2) is communicated with the second notch (17), and the upper cover body (12) and the lower cover body (13) are respectively detachably arranged at the openings at the upper end and the lower end of the accommodating cavity.
4. A purifying muffler for a diesel engine as claimed in claim 3, characterized in that the lower end of the upper housing (12) and the upper end of the lower housing (13) are provided with an upper flange (18) and a lower flange (19), respectively, and the upper and lower ends of the receiving chamber extend into the upper flange (18) and the lower flange (19), respectively.
5. A purifying muffler for a diesel engine as claimed in claim 3, characterized in that the upper cover (12), the lower cover (13), the front cover (14) and the rear cover (15) are provided with heat radiating holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221654402.XU CN218894692U (en) | 2022-06-30 | 2022-06-30 | Purifying silencer for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221654402.XU CN218894692U (en) | 2022-06-30 | 2022-06-30 | Purifying silencer for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218894692U true CN218894692U (en) | 2023-04-21 |
Family
ID=85997971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221654402.XU Active CN218894692U (en) | 2022-06-30 | 2022-06-30 | Purifying silencer for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218894692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199386A (en) * | 2022-06-30 | 2022-10-18 | 湖北精滤设备有限公司 | Integrated purifying silencer |
-
2022
- 2022-06-30 CN CN202221654402.XU patent/CN218894692U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199386A (en) * | 2022-06-30 | 2022-10-18 | 湖北精滤设备有限公司 | Integrated purifying silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A purification muffler for diesel engines Granted publication date: 20230421 Pledgee: Bank of China Limited Huanggang branch Pledgor: Hubei fine filter equipment Co.,Ltd. Registration number: Y2024980004197 |