CN215096997U - Hydrogen fuel cell bus exhaust silencing device - Google Patents
Hydrogen fuel cell bus exhaust silencing device Download PDFInfo
- Publication number
- CN215096997U CN215096997U CN202120308537.XU CN202120308537U CN215096997U CN 215096997 U CN215096997 U CN 215096997U CN 202120308537 U CN202120308537 U CN 202120308537U CN 215096997 U CN215096997 U CN 215096997U
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- inner cylinder
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- cylinder
- fuel cell
- hydrogen fuel
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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Abstract
The utility model discloses a hydrogen fuel cell bus exhaust silencing device, which relates to the technical field of bus exhaust silencing, and comprises an outer cylinder and an inner cylinder connected inside the outer cylinder, wherein a cavity is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and silencing cotton is filled in the cavity; the inner wall of the inner cylinder body is provided with a cavity separating plate, the cavity separating plate divides the inner cylinder body into a first section inner cylinder and a second section inner cylinder which are not communicated with each other, the side walls of the first section inner cylinder and the second section inner cylinder are respectively provided with a plurality of through holes, one end of the first section inner cylinder is provided with an air inlet, and one end of the second section inner cylinder is provided with an air outlet; simple structure, the maintenance of being convenient for can play the effect of noise reduction, and can discharge the moisture in the waste gas.
Description
Technical Field
The utility model relates to a bus exhaust amortization technical field, concretely relates to hydrogen fuel cell bus exhaust silencing device.
Background
A hydrogen fuel cell is a power generation device that directly converts chemical energy of hydrogen and oxygen into electrical energy. The energy conversion efficiency is high, the reliability is high, the environmental pollution is low, and the chemical energy in the fuel is converted into electric energy through the oxidation-reduction reaction of oxygen. When the hydrogen fuel cell works, the air compressor compresses air, so that exhaust sound is relatively loud, and great noise is generated. At present, the research on the tail exhaust silencer of a hydrogen fuel cell system is less, the noise reduction effect of the existing silencer is not obvious, the passenger riding comfort is reduced, serious noise has great influence on the NVH characteristic of the whole vehicle, and certain influence can be generated on the popularization of the fuel cell vehicle.
SUMMERY OF THE UTILITY MODEL
For solving exist not enough among the prior art, the utility model provides a hydrogen fuel cell bus exhaust silencing device, simple structure, the maintenance of being convenient for can play the effect of noise reduction, and can discharge the moisture in the waste gas.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: a hydrogen fuel cell bus exhaust silencing device comprises an outer cylinder and an inner cylinder connected to the inside of the outer cylinder, wherein a cavity is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and silencing cotton is filled in the cavity; the inner wall of the inner barrel body is provided with a cavity separating plate, the cavity separating plate divides the inner barrel body into a first section inner barrel and a second section inner barrel which are not communicated with each other, the side walls of the first section inner barrel and the second section inner barrel are respectively provided with a plurality of through holes, one end of the first section inner barrel is provided with an air inlet, and one end of the second section inner barrel is provided with an air outlet.
Furthermore, the side wall of the outer cylinder body is connected with a base, and the base is connected with a vehicle body support through a welding nut connected to the base at an inclination angle of 2 degrees.
Furthermore, the outlet has been seted up to outer barrel lateral wall least significant end, and outlet department is connected with the drain pipe.
Further, the length of the inner cylinder body is larger than that of the outer cylinder body, and two ends of the inner cylinder body are located outside the outer cylinder body.
Furthermore, one end of the second section of inner cylinder is of an arc-shaped structure, and the direction of an exhaust port of the second section of inner cylinder is vertical downward.
The utility model has the advantages that: the structure is simple, the maintenance is convenient, the noise generated by the work is weakened under the condition of not influencing the normal work of the fuel cell system, the problem of overlarge tail exhaust noise is solved, and the water in the tail gas can be discharged in time; the noise reduction device has the advantages that the internal structure of the noise reduction device is optimized, the weight is reduced, the lightweight index of the whole vehicle is better met, the NVH performance of the whole vehicle is improved through the installation of the noise reduction device, and the passengers have better riding comfort.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Reference numbers in the figures: 1. outer barrel, 2, interior barrel, 3, amortization cotton, 4, separate the chamber board, 5, drain pipe, 6, weld nut, 7, through-hole, 8, base.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
The utility model provides a hydrogen fuel cell bus exhaust silencing device, includes outer barrel 1 and connects in 1 inside interior barrel 2 of outer barrel, 2 length of interior barrel are greater than 1 length of outer barrel, and 2 both ends of interior barrel all are located 1 outsides of outer barrel. A cavity is formed between the inner wall of the outer cylinder body 1 and the outer wall of the inner cylinder body 2, and the cavity is filled with silencing cotton 3; the inner wall of the inner cylinder body 2 is provided with a cavity separating plate 4, the cavity separating plate 4 divides the inner cylinder body 2 into a first section inner cylinder and a second section inner cylinder which are not communicated with each other, the side walls of the first section inner cylinder and the second section inner cylinder are respectively provided with a plurality of through holes 7, one end of the first section inner cylinder is provided with an air inlet, and one end of the second section inner cylinder is provided with an air outlet; one end of the second section of inner cylinder is of an arc structure, and the exhaust port of the second section of inner cylinder is vertically downward. The outlet has been seted up to 1 lateral wall least significant ends of outer barrel, and outlet department is connected with drain pipe 5.
The installation method of the silencer comprises the following steps: the side wall of the outer cylinder body 1 is connected with a base 8, and the base 8 is connected with a vehicle body support through a welding nut 6 connected to the base at an inclination angle of 2 degrees.
The noise of high frequency gets into first section inner tube through 2 air inlets of interior barrel, through intensive through-hole 7 on the first section inner tube lateral wall, with noise distribution diffusion to the outer barrel 1 inner wall and in 2 amortization cotton 3 of cavity between the outer wall of barrel, through the absorption back of amortization cotton 3, the high frequency noise is weakened greatly, noise rethread second section inner tube lateral wall after weakening greatly is gone up intensive through-hole 7, the gas vent of barrel 2 in getting into, the emission is external. The discharge of the hydrogen fuel cell vehicle has a part of water generated by reaction besides high-frequency noise, so the silencer is designed to incline by 2 degrees, and a water outlet is arranged at the lowest point to prevent accumulated water from accumulating in the silencer barrel.
The above description is only the specific implementation manner of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the design of the present invention within the technical scope of the present invention.
Claims (5)
1. The hydrogen fuel cell bus exhaust silencing device is characterized by comprising an outer cylinder (1) and an inner cylinder (2) connected to the inside of the outer cylinder (1), wherein a cavity is formed between the inner wall of the outer cylinder (1) and the outer wall of the inner cylinder (2), and silencing cotton (3) is filled in the cavity; the inner barrel (2) is provided with a cavity separating plate (4) on the inner wall, the cavity separating plate (4) divides the inner barrel (2) into a first section inner barrel and a second section inner barrel which are not communicated with each other, the side walls of the first section inner barrel and the second section inner barrel are respectively provided with a plurality of through holes (7), one end of the first section inner barrel is provided with an air inlet, and one end of the second section inner barrel is provided with an air outlet.
2. The hydrogen fuel cell bus exhaust silencer according to claim 1, wherein a base (8) is connected to the side wall of the outer cylinder (1), and the base (8) is connected with a bus body bracket at an inclination angle of 2 ° by a weld nut (6) connected thereto.
3. The exhaust silencer for the hydrogen fuel cell bus according to claim 2, wherein the lowest end of the side wall of the outer cylinder (1) is provided with a water outlet, and the water outlet is connected with a water drain pipe (5).
4. The exhaust silencer for the hydrogen fuel cell bus according to claim 1, wherein the length of the inner cylinder (2) is greater than that of the outer cylinder (1), and both ends of the inner cylinder (2) are located outside the outer cylinder (1).
5. The bus exhaust silencer with hydrogen fuel cells as recited in claim 4, wherein one end of the second section of inner cylinder is an arc-shaped structure, and the exhaust port of the second section of inner cylinder is directed vertically downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120308537.XU CN215096997U (en) | 2021-02-03 | 2021-02-03 | Hydrogen fuel cell bus exhaust silencing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120308537.XU CN215096997U (en) | 2021-02-03 | 2021-02-03 | Hydrogen fuel cell bus exhaust silencing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215096997U true CN215096997U (en) | 2021-12-10 |
Family
ID=79333975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120308537.XU Active CN215096997U (en) | 2021-02-03 | 2021-02-03 | Hydrogen fuel cell bus exhaust silencing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215096997U (en) |
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2021
- 2021-02-03 CN CN202120308537.XU patent/CN215096997U/en active Active
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