CN111287829B - Diesel generating set in-cabin silencing device capable of effectively reducing exhaust noise - Google Patents
Diesel generating set in-cabin silencing device capable of effectively reducing exhaust noise Download PDFInfo
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- CN111287829B CN111287829B CN202010183732.4A CN202010183732A CN111287829B CN 111287829 B CN111287829 B CN 111287829B CN 202010183732 A CN202010183732 A CN 202010183732A CN 111287829 B CN111287829 B CN 111287829B
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- exhaust pipe
- cooling water
- air inlet
- pipe
- rectangular
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- 230000030279 gene silencing Effects 0.000 title claims abstract description 52
- 230000003584 silencer Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims description 40
- 230000000149 penetrating effect Effects 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 13
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/002—Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/007—Apparatus used as intake or exhaust silencer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
- F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a diesel generator set in-cabin silencer capable of effectively reducing exhaust noise, which solves the problem of how to effectively inhibit gas exhausted by a diesel exhaust pipe in a connected first-stage silencer. The diesel engine in-line exhaust pipe is changed into an S-shaped exhaust pipe, the S-shaped exhaust pipe is sealed in a box body, sound insulation chambers which are independent of each other are arranged in the sealed box body, and the exhaust direction of exhaust air flow and the cross section area of exhaust are changed for a plurality of times, so that the purpose of attenuating exhaust noise step by step is achieved; the inner cooling wall is arranged in the closed box body, and the temperature of the gas exhausted by the first-stage silencing device is reduced through cooling circulating water, so that the requirements on the air inlet and exhaust areas of the machine set cabin are greatly reduced. The purpose of reducing the area of the air inlet and outlet on the outer side of the engine room is achieved, and the intensity of noise generation is reduced.
Description
Technical Field
The invention relates to an exhaust silencer of a diesel engine, in particular to an in-cabin silencer of a diesel generator set, which can effectively reduce exhaust noise.
Background
In the engine compartment of the diesel generator set, the diesel engine, the generator, the exhaust pipe and other parts are required to emit heat, and corresponding ventilation and heat dissipation measures are required to be adopted to keep the temperature in the engine compartment not too high so as to ensure the normal operation of the engine in the engine compartment; the air inlet and outlet areas of the machine set cabin are increased, so that the temperature in the cabin can be reduced, but the output of the noise of the machine set is increased; the air inlet and outlet areas of the engine room of the generator set are reduced, the output of the noise of the generator set can be reduced, but the temperature in the engine room is increased, and the efficiency of the generator set can be influenced; therefore, the traditional mode of changing the air inlet and outlet areas of the machine set cabin is adopted, so that the temperature in the cabin and the noise output of the machine set cannot be reduced simultaneously. The method is characterized by comprising the following steps of analyzing temperature rise and noise in a cabin of the diesel generating set: a considerable part of heat in the engine room of the unit is diffused into the engine room after being transmitted out through an exhaust pipe of the diesel engine; the exhaust noise of a diesel engine is a main noise source in the engine compartment of a diesel generator set. The existing diesel generator sets are mostly of ordinary silencing type, a 1-3-level silencing device is generally arranged in a cabin, gas exhausted by a diesel engine exhaust pipe firstly enters the first-level silencing device for silencing, and the existing first-level silencing device has the defects that the temperature of exhaust gas cannot be effectively reduced and exhaust noise can be furthest reduced; therefore, how to reduce the heat emitted by the exhaust pipe of the diesel engine and effectively inhibit the gas emitted by the exhaust pipe of the diesel engine in the connected first-stage muffler is a technical problem to be solved in the prior art.
Disclosure of Invention
The invention provides a diesel generator set cabin silencer capable of effectively reducing exhaust noise, which solves the technical problem of how to effectively inhibit gas exhausted by a diesel engine exhaust pipe in a connected first-stage silencer.
The invention solves the technical problems by the following technical proposal:
The general conception of the invention is that: the diesel engine in-line exhaust pipe is changed into an S-shaped exhaust pipe, the S-shaped exhaust pipe is sealed in a box body, sound insulation chambers which are independent of each other are arranged in the sealed box body, and the exhaust direction of exhaust air flow and the cross section area of exhaust are changed for a plurality of times, so that the purpose of attenuating exhaust noise step by step is achieved; the inner cooling wall is arranged in the closed box body, and the temperature of the gas exhausted by the first-stage silencing device is reduced through cooling circulating water, so that the requirements on the air inlet and exhaust areas of the machine set cabin are greatly reduced.
The diesel generator cabin interior silencer capable of effectively reducing exhaust noise comprises a diesel generator, a circulating cooling water tank, a closed rectangular silencing box body outer shell, a straight exhaust pipe and an S-shaped air inlet pipe, wherein a closed first rectangular inner container shell is arranged in the closed rectangular silencing box body outer shell, a circulating cooling water tank is arranged between the closed first rectangular inner container shell and the closed rectangular silencing box body outer shell, a second rectangular inner container shell is arranged in the closed first rectangular inner container shell, an outer silencing and heat insulating cotton layer is arranged between the second rectangular inner container shell and the first rectangular inner container shell, an inner silencing and heat insulating cotton layer is arranged on the inner side surface of the second rectangular inner container shell, and a sound absorbing plate is arranged on the inner side surface of the inner silencing and heat insulating cotton layer; a left baffle plate, a middle baffle plate and a right baffle plate are respectively arranged in a closed space surrounded by the second rectangular inner container shell, and the three baffle plates divide the closed space surrounded by the second rectangular inner container shell into a first-stage closed silencing chamber, a second-stage closed silencing chamber, a third-stage closed silencing chamber and a fourth-stage closed silencing chamber; an air inlet and an air outlet are respectively arranged on a sealed rectangular sound-deadening box body shell outside a four-stage sealed sound-deadening chamber, a linear exhaust pipe is arranged in the air outlet, an inner port of the linear exhaust pipe is arranged in the four-stage sealed sound-deadening chamber, an outer port of the linear exhaust pipe is arranged outside the sealed rectangular sound-deadening box body shell, a middle pipe body of an S-shaped air inlet pipe is connected between a left side partition plate, a middle partition plate and a right side partition plate in a penetrating manner, a tail part of the S-shaped air inlet pipe is arranged in the four-stage sealed sound-deadening chamber, a tail port of the S-shaped air inlet pipe is arranged outside the sealed rectangular sound-deadening box body shell after penetrating out of the air inlet, a head part of the S-shaped air inlet pipe is arranged in the first-stage sealed sound-deadening chamber, a port sealing plate is arranged on a head port of the S-shaped air inlet pipe, exhaust holes are uniformly distributed on a head pipe wall of the S-shaped air inlet pipe, a front side linear exhaust pipe is connected between the left side partition plate and the middle partition plate in a penetrating manner, a front side linear exhaust pipe is connected between the middle partition plate and the right side partition plate, and two sound-deadening chamber communication holes are arranged on the middle partition plate; the cooling water inlet and the cooling water outlet are respectively arranged on the outer shell of the closed rectangular sound-reducing box body, the cooling water inlet pipe is arranged on the cooling water inlet, the other end of the cooling water inlet pipe is communicated with the circulating cooling water tank through a water pump, the cooling water outlet is provided with a cooling water return pipe, the other end of the cooling water return pipe is communicated with the circulating cooling water tank, and the tail port of the S-shaped air inlet pipe is communicated with the exhaust port of the diesel generator.
A rear-side straight-line short exhaust pipe is connected between the left side partition plate and the middle partition plate in a penetrating way, a rear-side straight-line long exhaust pipe is connected between the middle partition plate and the right side partition plate in a penetrating way, and the straight-line exhaust pipe is arranged between the front-side straight-line long exhaust pipe and the rear-side straight-line long exhaust pipe; the sum of the area of the cross section of the front side straight-line short exhaust pipe and the area of the cross section of the rear side straight-line short exhaust pipe is equal to the sum of the area of the cross section of the front side straight-line long exhaust pipe and the area of the cross section of the rear side straight-line long exhaust pipe, and the sum of the area of the cross section of the front side straight-line short exhaust pipe and the area of the cross section of the rear side straight-line short exhaust pipe is larger than the area of the cross section of the S-shaped air inlet pipe; a cooling fan is provided on the circulation cooling water tank.
The invention thoroughly changes the design structure of the silencer of the traditional diesel engine exhaust pipe, greatly reduces exhaust noise, and cools the exhaust through designing an independent circulating water heat dissipation loop, so that the temperature in the engine room is kept at a normal and stable level, the requirement of the normal operation of the unit on the required fresh air quantity is reduced, the purpose of reducing the area of an air inlet and outlet at the outer side of the engine room is realized, and the intensity of noise generation is reduced.
Drawings
FIG. 1 is a schematic view of the structure of the muffler device of the present invention;
fig. 2 is a schematic view of the structure of the S-shaped intake pipe 18 of the present invention;
FIG. 3 is a diagram of the relationship between the muffler of the present invention and an in-cabin diesel generator and other mechanisms.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
The diesel generator cabin interior silencer capable of effectively reducing exhaust noise comprises a diesel generator 27, a circulating cooling water tank 30, a closed rectangular silencing box outer shell 1, a linear exhaust pipe 26 and an S-shaped air inlet pipe 18, wherein a closed first rectangular inner shell 3 is arranged in the closed rectangular silencing box outer shell 1, a circulating cooling water chamber 2 is arranged between the closed first rectangular inner shell 3 and the closed rectangular silencing box outer shell 1, a second rectangular inner shell 5 is arranged in the closed first rectangular inner shell 3, an outer silencing and heat insulating cotton layer 4 is arranged between the second rectangular inner shell 5 and the first rectangular inner shell 3, an inner silencing and heat insulating cotton layer 6 is arranged on the inner side surface of the second rectangular inner shell 5, and a sound absorbing plate 7 is arranged on the inner side surface of the inner silencing and heat insulating cotton layer 6; a left baffle plate 8, a middle baffle plate 9 and a right baffle plate 10 are respectively arranged in the enclosed space surrounded by the second rectangular liner shell 5, and the three baffle plates divide the enclosed space surrounded by the second rectangular liner shell 5 into a first-stage enclosed silencing chamber 11, a second-stage enclosed silencing chamber 12, a third-stage enclosed silencing chamber 13 and a fourth-stage enclosed silencing chamber 14; an air inlet 17 and an air outlet 25 are respectively arranged on a sealed rectangular silencing box body outer shell 1 outside a four-stage sealed silencing chamber 14, a linear exhaust pipe 26 is arranged in the air outlet 25, the inner port of the linear exhaust pipe 26 is arranged in the four-stage sealed silencing chamber 14, the outer port of the linear exhaust pipe 26 is arranged outside the sealed rectangular silencing box body outer shell 1, the middle pipe body of an S-shaped air inlet pipe 18 is connected between a left baffle 8, a middle baffle 9 and a right baffle 10 in a penetrating way, the tail part of the S-shaped air inlet pipe 18 is arranged in the four-stage sealed silencing chamber 14, the tail port of the S-shaped air inlet pipe 18 is arranged outside the sealed rectangular silencing box body outer shell 1 after penetrating out of the air inlet 17, the head part of the S-shaped air inlet pipe 18 is arranged in the one-stage sealed silencing chamber 11, a port sealing plate 20 is arranged on the head port of the S-shaped air inlet pipe 18, an exhaust hole 19 is uniformly distributed on the head pipe wall of the S-shaped air inlet pipe 18, a front side linear short exhaust pipe 21 is connected between the left baffle 8 and the middle baffle 9 in a penetrating way, a front side long baffle 23 is connected between the middle baffle 9 and the right baffle 10 in a penetrating way, and two-stage silencing chambers 32 are arranged on the middle baffle 9 in a penetrating way; the cooling water inlet 15 and the cooling water outlet 16 are respectively arranged on the sealed rectangular silencing box body shell 1, the cooling water inlet 28 is arranged on the cooling water inlet 15, the other end of the cooling water inlet 28 is communicated with the circulating cooling water tank 30 through a water pump, the cooling water outlet 16 is provided with the cooling water return pipe 29, the other end of the cooling water inlet 28 is communicated with the generator cooler water outlet, the generator cooler water inlet is communicated with the circulating cooling water tank 30 through a water pump, and the tail port of the S-shaped air inlet pipe 18 is communicated with the exhaust port of the diesel generator 27.
A rear-side straight-line short exhaust pipe 22 is connected between the left baffle plate 8 and the middle baffle plate 9 in a penetrating way, a rear-side straight-line long exhaust pipe 24 is connected between the middle baffle plate 9 and the right baffle plate 10 in a penetrating way, and the straight-line exhaust pipe 26 is arranged between the front-side straight-line long exhaust pipe 23 and the rear-side straight-line long exhaust pipe 24; the sum of the area of the cross section of the front side in-line short exhaust pipe 21 and the area of the cross section of the rear side in-line short exhaust pipe 22 is equal to the sum of the area of the cross section of the front side in-line long exhaust pipe 23 and the area of the cross section of the rear side in-line long exhaust pipe 24, and the sum of the area of the cross section of the front side in-line short exhaust pipe 21 and the area of the cross section of the rear side in-line short exhaust pipe 22 is larger than the area of the cross section of the S-shaped intake pipe 18; a cooling fan 31 is provided in the circulation cooling water tank 30.
The gas discharged from the diesel generator 27 enters the S-shaped air inlet pipe 18 through the tail port of the S-shaped air inlet pipe 18, then enters the first-stage airtight silencing chamber 11 through the exhaust holes 19 uniformly distributed on the wall of the head of the S-shaped air inlet pipe 18, then enters the third-stage airtight silencing chamber 13 through the front-side straight-line short exhaust pipe 21 and the rear-side straight-line short exhaust pipe 22, then enters the second-stage airtight silencing chamber 12 through the two-silencing-chamber communication holes 32, then enters the fourth-stage airtight silencing chamber 14 through the front-side straight-line long exhaust pipe 23 and the rear-side straight-line long exhaust pipe 24, then enters the fourth-stage airtight silencing chamber 14 again through twice turning back, and finally is discharged from the straight-line exhaust pipe 26; the exhaust gas from the diesel generator 27 changes flow direction for many times in the sealed rectangular sound-reducing box body outer shell 1 and changes exhaust area for many times, so that exhaust noise of the exhaust gas is greatly reduced, meanwhile, circulating cooling water outside the exhaust gas continuously circulates, temperature of the exhaust gas is greatly reduced, the exhaust gas after noise reduction and temperature reduction sequentially passes through a subsequent silencing device, and the problems of heat dissipation and noise in a machine unit cabin are well solved.
Claims (1)
1. The diesel generator cabin silencer capable of effectively reducing exhaust noise comprises a diesel generator (27), a circulating cooling water tank (30), a closed rectangular silencer body outer shell (1), a linear exhaust pipe (26) and an S-shaped air inlet pipe (18), and is characterized in that a closed first rectangular inner container shell (3) is arranged in the closed rectangular silencer body outer shell (1), a circulating cooling water chamber (2) is arranged between the closed first rectangular inner container shell (3) and the closed rectangular silencer body outer shell (1), a second rectangular inner container shell (5) is arranged in the closed first rectangular inner container shell (3), an outer silencing and heat insulating cotton layer (4) is arranged between the second rectangular inner container shell (5) and the first rectangular inner container shell (3), an inner silencing and heat insulating cotton layer (6) is arranged on the inner side surface of the second rectangular inner container shell (5), and an acoustic board (7) is arranged on the inner side surface of the inner silencing and heat insulating cotton layer (6); a left baffle (8), a middle baffle (9) and a right baffle (10) are respectively arranged in a closed space surrounded by the second rectangular inner container shell (5), and the closed space surrounded by the second rectangular inner container shell (5) is divided into a first-stage closed silencing chamber (11), a second-stage closed silencing chamber (12), a third-stage closed silencing chamber (13) and a fourth-stage closed silencing chamber (14) by the left baffle (8), the middle baffle (9) and the right baffle (10); an air inlet (17) and an air outlet (25) are respectively arranged on a sealed rectangular sound-deadening box outer shell (1) outside a four-stage sealed sound-deadening chamber (14), a linear exhaust pipe (26) is arranged in the air outlet (25), the inner side port of the linear exhaust pipe (26) is arranged in the four-stage sealed sound-deadening chamber (14), the outer side port of the linear exhaust pipe (26) is arranged at the outer side of the sealed rectangular sound-deadening box outer shell (1), the middle pipe body of an S-shaped air inlet pipe (18) is connected between a left baffle plate (8), a middle baffle plate (9) and a right baffle plate (10) in a penetrating way, the tail part of the S-shaped air inlet pipe (18) is arranged in the four-stage sealed sound-deadening chamber (14), the tail port of the S-shaped air inlet pipe (18) is arranged at the outer side of the sealed rectangular sound-deadening box body shell (1) after penetrating out of the air inlet (17), the head of the S-shaped air inlet pipe (18) is arranged in the first-level sealed sound-deadening chamber (11), a port sealing plate (20) is arranged on the head port of the S-shaped air inlet pipe (18), exhaust holes (19) are uniformly distributed on the head pipe wall of the S-shaped air inlet pipe (18), a front-side straight-line short exhaust pipe (21) is connected between the left baffle plate (8) and the middle baffle plate (9) in a penetrating way, a front-side straight-line long exhaust pipe (23) is connected between the middle baffle plate (9) and the right baffle plate (10) in a penetrating way, two silencing chamber communication holes (32) are formed in the middle partition plate (9); a cooling water inlet (15) and a cooling water outlet (16) are respectively arranged on a closed rectangular sound-reducing box body shell (1), a cooling water inlet pipe (28) is arranged on the cooling water inlet (15), the other end of the cooling water inlet pipe (28) is communicated with a circulating cooling water tank (30) through a water pump, a cooling water return pipe (29) is arranged on the cooling water outlet (16), the other end of the cooling water return pipe (29) is communicated with the circulating cooling water tank (30), and the tail port of an S-shaped air inlet pipe (18) is communicated with an air outlet of a diesel generator (27); a rear-side straight-line short exhaust pipe (22) is connected between the left baffle plate (8) and the middle baffle plate (9) in a penetrating way, a rear-side straight-line long exhaust pipe (24) is connected between the middle baffle plate (9) and the right baffle plate (10) in a penetrating way, and the straight-line exhaust pipe (26) is arranged between the front-side straight-line long exhaust pipe (23) and the rear-side straight-line long exhaust pipe (24); the sum of the cross-sectional area of the front side straight short exhaust pipe (21) and the cross-sectional area of the rear side straight short exhaust pipe (22) is equal to the sum of the cross-sectional area of the front side straight long exhaust pipe (23) and the cross-sectional area of the rear side straight long exhaust pipe (24), and the sum of the cross-sectional area of the front side straight short exhaust pipe (21) and the cross-sectional area of the rear side straight short exhaust pipe (22) is larger than the cross-sectional area of the S-shaped air inlet pipe (18); a cooling fan (31) is provided on the circulating cooling water tank (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010183732.4A CN111287829B (en) | 2020-03-16 | 2020-03-16 | Diesel generating set in-cabin silencing device capable of effectively reducing exhaust noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010183732.4A CN111287829B (en) | 2020-03-16 | 2020-03-16 | Diesel generating set in-cabin silencing device capable of effectively reducing exhaust noise |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111287829A CN111287829A (en) | 2020-06-16 |
| CN111287829B true CN111287829B (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010183732.4A Active CN111287829B (en) | 2020-03-16 | 2020-03-16 | Diesel generating set in-cabin silencing device capable of effectively reducing exhaust noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111287829B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU202977U1 (en) * | 2020-07-14 | 2021-03-17 | Публичное акционерное общество "КАМАЗ" | Exhaust silencer for internal combustion engine |
| CN112211695B (en) * | 2020-10-13 | 2021-07-20 | 佛山市龙生光启科技有限公司 | Intelligent noise elimination system for engineering machinery |
| CN112282935B (en) * | 2020-10-21 | 2021-08-31 | 安徽天沃重工机械有限公司 | Diesel engine with protection mechanism for agricultural machinery |
| CN116220862B (en) * | 2023-03-15 | 2024-06-25 | 重庆赛力斯新能源汽车设计院有限公司 | Self-cooling exhaust muffler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1037755A (en) * | 1996-07-25 | 1998-02-10 | Sanyo Denki Co Ltd | Movable power supply vehicle |
| CN208441926U (en) * | 2018-07-15 | 2019-01-29 | 福建一华电机有限公司 | A kind of super-silent diesel generating set |
| CN110529240A (en) * | 2019-08-31 | 2019-12-03 | 无锡法尔胜悦能动力有限公司 | A kind of low noise generating set |
| CN212250198U (en) * | 2020-03-16 | 2020-12-29 | 中船重工电机科技股份有限公司 | Diesel generating set cabin interior silencing device capable of effectively reducing exhaust noise |
-
2020
- 2020-03-16 CN CN202010183732.4A patent/CN111287829B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1037755A (en) * | 1996-07-25 | 1998-02-10 | Sanyo Denki Co Ltd | Movable power supply vehicle |
| CN208441926U (en) * | 2018-07-15 | 2019-01-29 | 福建一华电机有限公司 | A kind of super-silent diesel generating set |
| CN110529240A (en) * | 2019-08-31 | 2019-12-03 | 无锡法尔胜悦能动力有限公司 | A kind of low noise generating set |
| CN212250198U (en) * | 2020-03-16 | 2020-12-29 | 中船重工电机科技股份有限公司 | Diesel generating set cabin interior silencing device capable of effectively reducing exhaust noise |
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