CN103437875A - Equipment for reducing engineering mechanical engine exhaust noise and engineering machine - Google Patents
Equipment for reducing engineering mechanical engine exhaust noise and engineering machine Download PDFInfo
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- CN103437875A CN103437875A CN2013103874563A CN201310387456A CN103437875A CN 103437875 A CN103437875 A CN 103437875A CN 2013103874563 A CN2013103874563 A CN 2013103874563A CN 201310387456 A CN201310387456 A CN 201310387456A CN 103437875 A CN103437875 A CN 103437875A
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Abstract
The invention discloses equipment for reducing engineering mechanical engine exhaust noise and an engineering machine. The equipment comprises a silencer, a cooling water jacket, a water inlet pipe, a water outlet pipe, a radiator and a water pump. The silencer is connected with one end of the cooling water jacket, the water inlet pipe and the water outlet pipe are connected with the other end of the cooling water jacket, the water pump is arranged in the middle of the water inlet pipe, the water inlet pipe and the water outlet pipe are connected with the radiator, and the cooling water jacket is made of copper. The equipment is used for exhausting and cooling, so the air exhausting flow rate is lowered, and under the same air exhausting resistance, the number of throttling holes can be reduced, and the exhaust noise is greatly reduced; the cooling water jacket can also play a role in noise reduction and enables the effect of noise reduction to be more obvious; after the air exhausting flow rate is lowered through cooling, the impact on the internal of the silencer is reduced, and reliability of the silencer can be improved.
Description
Technical field
The present invention relates to reduce noise technique, relate in particular to a kind of equipment and engineering machinery that reduces the engineering machinery engine exhaust sound.
Background technique
Engine exhaust noise is one of Main Noise Sources of engineering machinery, belongs to the aerodynamic noise.The exhaust process of diesel engine is the violent flow process of a kind of periodic air, causes strong air-flow vibrations, and consequent aerodynamic noise is directly to atmospheric radiation.Along with the raising of engine speed and reinforcing degree, in vent systems, airspeed strengthens, and exhaust sound also increases, thereby total noise of centrifuge is increased.
The noise that engine exhaust evokes, the mechanism more complicated produced, but be to there is the strong disturbance of the large flow high temperature and high speed waste gas of certain pressure to exhaust outlet in essence, if can reduce pressure pulsation, the stream velocity fluctuation of this exhaust, the volume flowrate of minimizing exhaust, can reduce greatly noise.The structure of existing engineering machinery engine silencing apparatus and principle are: exhaust enters the first expansion chamber through silencer air inlet pipe, Speed Reduction after gas expansion, then enter the second expansion chamber by throttle pipe, after reexpanding and slowing down, enter the 3rd expansion chamber, discharge finally by tail pipe, all have many throttle orifices on suction tude, throttle pipe and tail pipe, play the effect of throttling noise reduction.But this method by multistage noise reduction is due to the Design and manufacture level, and the noise reduction effect is not satisfactory.
Summary of the invention
In view of this, the present invention proposes a kind of equipment and engineering machinery that reduces the engineering machinery engine exhaust sound, to solve the not satisfactory problem of above-mentioned noise reduction effect.
For achieving the above object, technological scheme of the present invention is achieved in that
On the one hand, a kind of equipment that reduces the engineering machinery engine exhaust sound is provided, comprise a silencing apparatus, a cooling jacket, an intake pipe, one outlet pipe, one radiator and a water pump, described silencing apparatus setting is connected with an end of described cooling jacket, and described intake pipe is connected with the other end of described cooling jacket with described outlet pipe, be provided with described water pump in the middle of described intake pipe, described intake pipe is connected described radiator with described outlet pipe.Wherein, the material of described cooling jacket is copper.
The equipment of above-mentioned reduction engineering machinery engine exhaust sound, wherein, described cooling jacket profile is circular.
The equipment of above-mentioned reduction engineering machinery engine exhaust sound, wherein, the right-hand member of described cooling jacket is provided with water intake and water outlet.
The equipment of above-mentioned reduction engineering machinery engine exhaust sound, wherein, the material of described intake pipe and described outlet pipe is rubber.
The equipment of above-mentioned reduction engineering machinery engine exhaust sound, wherein, the type of described water pump is vane pump.
The equipment of above-mentioned reduction engineering machinery engine exhaust sound, wherein, the material of described radiator is copper.
On the other hand, provide a kind of engineering machinery, wherein, comprise the equipment of reduction engineering machinery engine exhaust sound as described as above-mentioned any one.
The present invention is owing to having adopted above-mentioned technology, and the good effect of generation is:
(1) by use of the present invention, exhaust is cooling, and exhaust flow rate is reduced, and under identical exhaust resistance, throttle orifice can be reduced, and reduces widely exhaust sound;
(2) by use of the present invention, cooling jacket itself also can play Noise Reduction, makes noise reduction more obvious;
(3) by use of the present invention, by cooling, after exhaust flow rate reduces, the impact of silencing apparatus inside is reduced, can improve the reliability of silencing apparatus.
The accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
The example structure schematic diagram that Fig. 1 is the present invention's equipment of reducing the engineering machinery engine exhaust sound.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
Fig. 1 is the embodiments of the invention structure principle chart, shown in Figure 1:
On the one hand, a kind of equipment that reduces the engineering machinery engine exhaust sound is provided, comprises silencing apparatus 1, one cooling jacket 2, one intake pipe 5, one outlet pipe 4, one radiators 7 and a water pump 6, silencing apparatus 1 arranges and is connected with an end of cooling jacket 2, intake pipe 5 is connected with the other end of cooling jacket 2 with outlet pipe 4, be provided with water pump 6 in the middle of intake pipe 5, intake pipe 5 is connected radiator 7 with outlet pipe 4, and the material of cooling jacket 2 is copper.
The present invention also has following mode of execution on the basis of the above, please continue shown in Figure 1:
In further embodiment of the present invention, cooling jacket 2 profiles are circular.
In further embodiment of the present invention, the right-hand member of cooling jacket 2 is provided with water intake 3 and water outlet 8.
In further embodiment of the present invention, the material of intake pipe 5 and outlet pipe 4 is rubber.
In further embodiment of the present invention, the type of water pump 6 is vane pump.
In further embodiment of the present invention, the material of radiator 7 is copper.
The user can operate the present invention by following steps:
Increase a cooling jacket 2 on the shell of silencing apparatus 1, the water intake 3 of the right-hand member of cooling jacket 2 is connected respectively an intake pipe 5 and an outlet pipe 4 with water outlet 8, the centre of intake pipe 5 adds a water pump 6, and an other end of intake pipe 5 and outlet pipe 4 is connected on the connection mouth of radiator 7.
When machinery starts exhaust, gas enters cooling jacket 2 by silencing apparatus 1, the noise that now gas sends reduces through silencing apparatus 1, then open water pump 6 and radiator 7, gas is cooling by the stream of the cold water in cooling jacket 2, and the heat in gas reduces, and volume reduces, flow velocity also reduces thereupon, and noise also and then significantly reduces.Water pump 6 carries cold water to enter cooling jacket 2 from below, the current that utilized enter radiator 7 along outlet pipe 4, carry out the cooling processing, and cooled current continue to be transported into cooling jacket 2 through water pump 6, reach cooling water circulation.
Through the enforcement of above-mentioned steps, cooling by exhaust is carried out, high-temperature gas volume after supercooling of discharging is reduced, to reduce the volume flowrate of exhaust gas pressure pulse, stream velocity fluctuation, minimizing exhaust, reach veritably the purpose of noise reduction.
In addition, in the implementation process of above-described embodiment, cooling water can replace with oil or other cooling medium, and radiator 7 can replace with radiating fin.
The embodiment of the present invention also provides a kind of engineering machinery, this project machinery is provided with above-mentioned any and reduces the equipment of engineering machinery engine exhaust sound, because the above-mentioned equipment that any reduces the engineering machinery engine exhaust sound has above-mentioned technique effect, therefore, the engineering machinery that is provided with the equipment of this reduction engineering machinery engine exhaust sound also should possess corresponding technique effect, its specific implementation process is similar to the above embodiments, does not hereby repeat.
From the various embodiments described above, can find out, advantage of the present invention is:
By use of the present invention, exhaust is cooling, and exhaust flow rate is reduced, and under identical exhaust resistance, throttle orifice can be reduced, and reduces widely exhaust sound; By use of the present invention, cooling jacket itself also can play Noise Reduction, makes noise reduction more obvious; By use of the present invention, by cooling, after exhaust flow rate reduces, the impact of silencing apparatus inside is reduced, can improve the reliability of silencing apparatus.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. an equipment that reduces the engineering machinery engine exhaust sound, it is characterized in that, comprise a silencing apparatus (1), one cooling jacket (2), one intake pipe (5), one outlet pipe (4), one radiator (7) and a water pump (6), described silencing apparatus (1) setting is connected with an end of described cooling jacket (2), described intake pipe (5) is connected with the other end of described cooling jacket (2) with described outlet pipe (4), be provided with described water pump (6) in the middle of described intake pipe (5), described intake pipe (5) is connected described radiator (7) with described outlet pipe (4), the material of described cooling jacket (2) is copper.
2. the equipment of reduction engineering machinery engine exhaust sound according to claim 1, is characterized in that, described cooling jacket (2) profile is circular.
3. the equipment of reduction engineering machinery engine exhaust sound according to claim 1, is characterized in that, the right-hand member of described cooling jacket (2) is provided with water intake (3) and water outlet (8).
4. the equipment of reduction engineering machinery engine exhaust sound according to claim 1, is characterized in that, the material of described intake pipe (5) and described outlet pipe (4) is rubber.
5. the equipment of reduction engineering machinery engine exhaust sound according to claim 1, is characterized in that, the type of described water pump (6) is vane pump.
6. the equipment of reduction engineering machinery engine exhaust sound according to claim 1, is characterized in that, the material of described radiator (7) is copper.
7. an engineering machinery, is characterized in that, comprises the equipment of reduction engineering machinery engine exhaust sound as described as any one in claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103874563A CN103437875A (en) | 2013-08-30 | 2013-08-30 | Equipment for reducing engineering mechanical engine exhaust noise and engineering machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103874563A CN103437875A (en) | 2013-08-30 | 2013-08-30 | Equipment for reducing engineering mechanical engine exhaust noise and engineering machine |
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| Publication Number | Publication Date |
|---|---|
| CN103437875A true CN103437875A (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013103874563A Pending CN103437875A (en) | 2013-08-30 | 2013-08-30 | Equipment for reducing engineering mechanical engine exhaust noise and engineering machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929732A (en) * | 2015-06-22 | 2015-09-23 | 陈伟强 | Liquid exhaust pipe purifier |
| CN107269348A (en) * | 2017-07-11 | 2017-10-20 | 丁乃祥 | Internal combustion engine exhaust silencer and its method of work |
| CN112253685A (en) * | 2020-10-21 | 2021-01-22 | 马鞍山市常立发机械制造有限公司 | Safe type low noise diesel engine for agricultural machine |
| CN117846744A (en) * | 2024-03-07 | 2024-04-09 | 苏州国融前沿技术有限公司 | Noise reduction equipment for engine exhaust |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089149A (en) * | 1996-09-20 | 1998-04-07 | Zexel Corp | Exhaust heat recovering device for engine drive heat pump device |
| KR20050114941A (en) * | 2004-06-02 | 2005-12-07 | 황부성 | System for non-utility generation and hot-water supply |
| CN201650427U (en) * | 2010-02-11 | 2010-11-24 | 重庆全冠机电设备制造有限公司 | Gasoline generating set silencing device |
-
2013
- 2013-08-30 CN CN2013103874563A patent/CN103437875A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089149A (en) * | 1996-09-20 | 1998-04-07 | Zexel Corp | Exhaust heat recovering device for engine drive heat pump device |
| KR20050114941A (en) * | 2004-06-02 | 2005-12-07 | 황부성 | System for non-utility generation and hot-water supply |
| CN201650427U (en) * | 2010-02-11 | 2010-11-24 | 重庆全冠机电设备制造有限公司 | Gasoline generating set silencing device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929732A (en) * | 2015-06-22 | 2015-09-23 | 陈伟强 | Liquid exhaust pipe purifier |
| CN107269348A (en) * | 2017-07-11 | 2017-10-20 | 丁乃祥 | Internal combustion engine exhaust silencer and its method of work |
| CN107269348B (en) * | 2017-07-11 | 2019-03-01 | 丁乃祥 | Internal combustion engine exhaust silencer |
| CN112253685A (en) * | 2020-10-21 | 2021-01-22 | 马鞍山市常立发机械制造有限公司 | Safe type low noise diesel engine for agricultural machine |
| CN117846744A (en) * | 2024-03-07 | 2024-04-09 | 苏州国融前沿技术有限公司 | Noise reduction equipment for engine exhaust |
| CN117846744B (en) * | 2024-03-07 | 2024-05-03 | 苏州国融前沿技术有限公司 | Noise reduction equipment for engine exhaust |
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Application publication date: 20131211 |