阅读说明：本技术 用于燃料电池发动机的尾排消音装置及车辆 (Tail exhaust silencing device for fuel cell engine and vehicle ) 是由 汪成伟 叶永亮 张彦辉 赵红英 于 2021-07-29 设计创作，主要内容包括：本公开涉及一种用于燃料电池发动机的尾排消音装置及车辆,尾排消音装置包括外壳,外壳内部通过一个或多个沿外壳长度方向间隔布置且均沿外壳宽度方向延伸的隔板形成多个消音腔室,隔板上设置有连通相邻两个消音腔室的多个消音通孔,外壳上设置有进气管和排气管,进气管具有位于外壳内部的第一排气口和位于外壳外部的第一进气口,排气管具有位于外壳内部的第二进气口和位于外壳外部的第二排气口,第一排气口和第二进气口沿所述宽度方向间隔设置,且第一排气口的排气方向与第二进气口的进气方向同向且均平行于所述长度方向,以使得通过第一排气口排出的尾气能够流经多个消音腔室。本公开能够有效的解决相关技术中发动机噪音大的问题。(The utility model relates to a tail exhaust silencer for a fuel cell engine and a vehicle, the tail exhaust silencer comprises a shell, a plurality of silencing chambers are formed inside the shell through one or a plurality of clapboards which are arranged at intervals along the length direction of the shell and extend along the width direction of the shell, a plurality of silencing through holes which are communicated with two adjacent silencing chambers are arranged on the clapboards, an air inlet pipe and an exhaust pipe are arranged on the shell, the air inlet pipe is provided with a first exhaust port positioned inside the shell and a first air inlet positioned outside the shell, the exhaust pipe is provided with a second air inlet positioned inside the shell and a second exhaust port positioned outside the shell, the first exhaust port and the second air inlet are arranged at intervals along the width direction, and the exhaust direction of the first exhaust port is the same as the air inlet direction of the second air inlet and is parallel to the length direction, so that the tail gas exhausted through the first exhaust port can flow through the plurality of silencing chambers. The problem that engine noise is big among the relevant art can effectual solution be disclosed.)

1. The utility model provides a tail row silencing device for fuel cell engine, characterized in that, tail row silencing device includes shell (1), shell (1) is inside to be followed through one or more shell (1) length direction interval arrangement and all follow baffle (2) that shell (1) width direction extends form a plurality of amortization cavities, be provided with the adjacent two of intercommunication on baffle (2) a plurality of amortization through-holes (210) of amortization cavity, be provided with intake pipe (3) and blast pipe (4) on shell (1), intake pipe (3) have and are located inside first exhaust port (310) of shell (1) and be located the outside first air inlet (320) of shell (1), first air inlet (320) communicate in fuel cell engine's tail gas discharge port, blast pipe (4) have and are located inside second air inlet (410) of shell (1) and be located the outside second air inlet (410) of shell (1) An exhaust port (420), the first exhaust port (310) and the second air inlet (410) are arranged along the width direction interval, and the exhaust direction of the first exhaust port (310) and the air inlet direction of the second air inlet (410) are in the same direction and are all parallel to the length direction, so that the tail gas exhausted by the first exhaust port (310) can flow through a plurality of the silencing chambers.

2. The exhaust muffler device for a fuel cell engine according to claim 1, wherein the intake pipe (3) and the exhaust pipe (4) are respectively provided on both side walls of the casing (1) opposite with respect to the width direction, and a pipe body portion of the intake pipe (3) within the casing (1) and a pipe body portion of the exhaust pipe (4) within the casing (1) each extend parallel to the length direction.

3. The exhaust silencer device for a fuel cell engine according to claim 2, wherein a pipe body portion of the intake pipe (3) located inside the casing (1) extends in the exhaust direction of the first exhaust port (310) and passes through at least one of the partitions (2), and the intake pipe (3) is fixedly connected to the at least one of the partitions (2).

4. The exhaust muffler device for a fuel cell engine according to claim 2, wherein a plurality of third exhaust ports (330) are provided in a circumferential direction at intervals on a side wall of a pipe portion of the intake pipe (3) in the casing (1) at an end close to the first exhaust port (310).

5. The exhaust muffler device for a fuel cell engine according to claim 2, wherein a pipe body portion of the exhaust pipe (4) located inside the housing (1) extends in a direction opposite to an intake direction of the second intake port (410) and passes through at least one of the separators (2), the exhaust pipe (4) being fixedly connected to the at least one of the separators (2).

6. The exhaust silencer device for a fuel cell engine according to claim 2, wherein the cross section of the pipe body portion of the exhaust pipe (4) located in the housing (1) is U-shaped with the opening facing the bottom wall of the housing (1), and the pipe body portion and the bottom wall of the housing (1) together form an exhaust passage for exhaust gas inside the housing (1).

7. The exhaust muffler device for a fuel cell engine according to claim 1, wherein the first exhaust port (310) and the second intake port (410) are located in the same muffling chamber.

8. The exhaust muffler device for a fuel cell engine according to claim 1, wherein the housing (1) includes a case (110) having an opening facing upward and a cover (120) sealingly covering the opening and detachably attached to the case (110), the cover (120) being adapted to be detachably attached to a vehicle frame, the cover (120) being provided with a weight-reduction groove (121).

9. The exhaust muffler device for a fuel cell engine according to any one of claims 1 to 8, wherein a first connection port (130) for communicating with a drain pipe of an air compressor is provided on a side wall of the housing (1); and/or the presence of a gas in the gas,

a second connecting port (140) for communicating a water draining pipe of the water separator and a third connecting port (150) for communicating an exhaust pipe of the water separator are arranged on the side wall of the shell (1); and/or the presence of a gas in the gas,

and a fourth connecting port (160) for communicating with an exhaust pipe of the unloading valve is arranged on the side wall of the shell (1).

10. A vehicle comprising a fuel cell engine and a tail silencer for a fuel cell engine according to any of claims 1-9, the first air inlet (320) of the inlet duct (3) of the tail silencer communicating with the exhaust outlet of the fuel cell engine.

Technical Field

The disclosure relates to the technical field of engine tail row silencing, in particular to a tail row silencing device for a fuel cell engine and a vehicle.

Background

The hydrogen fuel cell engine on the market only has a tail calandria, discharges a small amount of gas and produced water that remain in the engine electrochemical reaction process outside the organism, and the engine does not have the function of muffler, so whole engine work in-process noise is very big.

Disclosure of Invention

The purpose of this disclosure is to provide a tail row silencing device and vehicle for fuel cell engine, this tail row silencing device can effectually solve the big problem of engine noise among the relevant art.

In order to achieve the above object, the present disclosure provides a tail silencer for a fuel cell engine, the tail silencer including a housing, the housing having one or more partitions disposed along a length direction of the housing at intervals and extending along a width direction of the housing to form a plurality of silencing chambers, the partitions having a plurality of silencing through holes for communicating two adjacent silencing chambers, the housing having an inlet pipe and an outlet pipe, the inlet pipe having a first inlet located inside the housing and a first outlet located outside the housing, the first inlet being communicated with a tail gas discharge port of the fuel cell engine, the outlet pipe having a second inlet located inside the housing and a second outlet located outside the housing, the first outlet and the second inlet being spaced along the width direction, and the exhaust direction of the first exhaust port and the air inlet direction of the second air inlet are in the same direction and are parallel to the length direction, so that the tail gas exhausted through the first exhaust port can flow through the plurality of silencing chambers.

Optionally, the air inlet pipe and the air outlet pipe are respectively arranged on two opposite side walls of the housing with respect to the width direction, and both a pipe body portion of the air inlet pipe located in the housing and a pipe body portion of the air outlet pipe located in the housing extend parallel to the length direction.

Optionally, a pipe body part of the air inlet pipe located in the outer shell extends along the exhaust direction of the first exhaust port and penetrates through at least one partition plate, and the air inlet pipe is fixedly connected with the at least one partition plate.

Optionally, a plurality of third exhaust ports arranged at intervals along the circumferential direction are arranged on the side wall of the end, close to the first exhaust port, of the pipe body part of the air inlet pipe in the shell.

Optionally, a pipe body part of the exhaust pipe located in the housing extends in a direction opposite to the air inlet direction of the second air inlet and penetrates through the at least one partition plate, and the exhaust pipe is fixedly connected with the at least one partition plate.

Optionally, the cross section of the pipe body part of the exhaust pipe located in the housing is U-shaped with an opening facing the bottom wall of the housing, and the pipe body part and the bottom wall of the housing together form an exhaust passage for exhausting the exhaust gas inside the housing.

Optionally, the first exhaust port and the second intake port are located in the same muffling chamber.

Optionally, the housing includes a casing having an upward opening, and a cover body hermetically covering the opening and detachably connected to the casing, the cover body is configured to be detachably connected to the vehicle frame, and a weight reduction groove is provided in the cover body.

Optionally, a first connecting port for communicating with a drain pipe of the air compressor is arranged on the side wall of the shell; and/or a second connecting port for communicating a water distributor drain pipe and a third connecting port for communicating a water distributor exhaust pipe are arranged on the side wall of the shell; and/or a fourth connecting port for communicating the exhaust pipe of the unloading valve is arranged on the side wall of the shell.

Another aspect of the present disclosure also provides a vehicle including a fuel cell engine and a tail silencer for the fuel cell engine as described above, the first air inlet of the air inlet pipe of the tail silencer being communicated with the tail gas exhaust port of the fuel cell engine.

Through above-mentioned technical scheme, this a pair of tail row silencing device for fuel cell engine that this disclosure provided promptly passes through shell, intake pipe, blast pipe and baffle and constitutes an acoustic filter jointly, and effectual filtration part noise, and this tail row silencing device is whole not to install special sound absorbing material, simple structure, and all spare parts are all workable. During specific work, a large amount of tail gas (such as hydrogen, oxygen, water and the like) generated by a fuel cell engine is conveyed into the inner cavity of the shell through the air inlet pipe communicated with the inner cavity, the tail gas quickly breaks through the silencing through holes in the partition plate under the action of self high pressure and is filled with a plurality of silencing chambers, the tail gas and the silencing through holes are mutually rubbed by the breakthrough process and the tail gas flowing back and forth in the silencing chambers, a part of sound energy is converted into heat energy to be consumed, noise of certain frequency components is effectively filtered, and then the filtered tail gas is discharged out of the inner cavity of the shell through the exhaust pipe so as to achieve the purpose of silencing. In addition, the width direction interval setting of shell is followed to the first exhaust port of intake pipe and the second air inlet of blast pipe, and the exhaust direction of first exhaust port and the length direction of the equal parallel to shell of the direction of admitting air of second air inlet guarantee that high-pressure tail gas can be full of a plurality of amortization cavities after getting into the shell inner chamber through the intake pipe to follow blast pipe discharge shell inner chamber after the filtering amortization, improved the noise cancelling effect. Therefore, the tail exhaust silencing device for the fuel cell engine provided by the disclosure can effectively solve the problem of large engine noise in the related art and has the advantages of simple structure, easiness in processing and low processing cost.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a perspective view of a tail muffler assembly for a fuel cell engine provided in an exemplary embodiment of the present disclosure;

fig. 2 is a perspective view of a tail muffler assembly for a fuel cell engine provided in an exemplary embodiment of the present disclosure with a cover removed;

fig. 3 is a schematic view of a tail gas flow direction of a tail silencer for a fuel cell engine provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

1-a housing; 110-a housing; 111-a backplane; 112-side plate; 113-reinforcing ribs; 120-a cover body; 121-weight reduction slots; 130-a first connection port; 140-a second connection port; 150-a third connection port; 160-a fourth connection port; 2-a separator; 210-a sound-deadening through-hole; 3, an air inlet pipe; 310-a first exhaust port; 320-a first air inlet; 330-a third exhaust port; 4-an exhaust pipe; 410-a second air inlet; 420-second exhaust port.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, for convenience of description, a three-coordinate, that is, an XYZ coordinate system is defined for the tail silencer, wherein a Z direction corresponds to a height direction of the tail silencer in a use state; the X direction corresponds to the length direction of the tail row silencer, namely the length direction of the shell; the Y direction corresponds to the width direction of the tail muffler device, i.e., the width direction of the housing. Where not otherwise stated, "inner and outer" refer to inner and outer relative to the contour of the component or structure itself. In addition, it should be noted that terms such as "first", "second", and the like are used for distinguishing one element from another, and have no order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

According to a first aspect of the present disclosure, there is provided a tail silencer for a fuel cell engine, referring to fig. 1 and 2, the tail silencer comprises a housing 1, a plurality of silencing chambers are formed inside the housing 1 by one or more partition plates 2 arranged at intervals along the length direction of the housing 1 and extending along the width direction of the housing 1, a plurality of silencing through holes 210 communicating two adjacent silencing chambers are arranged on the partition plate 2, an inlet pipe 3 and an outlet pipe 4 are arranged on the housing 1, the inlet pipe 3 has a first inlet port 310 located inside the housing 1 and a first inlet port 320 located outside the housing 1, the first inlet port 320 is communicated with a tail gas discharge port of the fuel cell engine, the outlet pipe 4 has a second inlet port 410 located inside the housing 1 and a second outlet port 420 located outside the housing 1, the first exhaust port 310 and the second air inlet 410 are arranged at intervals in the width direction, and the exhaust direction of the first exhaust port 310 and the air inlet direction of the second air inlet 410 are in the same direction and are parallel to the length direction, so that the exhaust gas exhausted by the first exhaust port 310 can flow through a plurality of silencing chambers. In some embodiments, the exhaust gas discharged through the first exhaust port 310 fills the plurality of sound-deadening chambers under its own pressure.

Through above-mentioned technical scheme, this a pair of tail row silencing device for fuel cell engine that this disclosure provided promptly passes through shell 1, intake pipe 3, blast pipe 4 and baffle 2 and constitutes an acoustic filter jointly, and effectual filtration part noise, and this tail row silencing device is whole not to install special sound absorbing material, simple structure, and all spare parts are all workable. In the specific work, a large amount of tail gas (such as hydrogen, oxygen, water and the like) generated by the fuel cell engine is conveyed into the inner cavity of the shell 1 through the air inlet pipe 3 communicated with the tail gas, the tail gas quickly breaks through the silencing through holes 210 on the partition plate 2 under the action of self high pressure and is filled in the silencing chambers, the tail gas and the silencing through holes 210 are mutually rubbed by the breakthrough process and the tail gas flowing back and forth in the silencing chambers, a part of sound energy is converted into heat energy to be consumed, noise of certain frequency components is effectively filtered, and then the filtered tail gas is discharged out of the inner cavity of the shell 1 through the exhaust pipe 4, so that the purpose of silencing is achieved. In addition, the width direction interval setting of shell 1 is followed to the first exhaust port 310 of intake pipe 3 and the second air inlet 410 of blast pipe 4, and the exhaust direction of first exhaust port 310 all is on a parallel with the length direction of shell 1 with the direction of admitting air of second air inlet 410, guarantees that high-pressure tail gas can be full of a plurality of amortization cavities after getting into shell 1 inner chamber through intake pipe 3, with after the filtration amortization from the 1 inner chamber of blast pipe 4 discharge shell, improved the noise cancelling effect. It should be noted that "a plurality" of the above-mentioned one or more sound-deadening chambers means at least two. Therefore, the tail exhaust silencing device for the fuel cell engine provided by the disclosure can effectively solve the problem of large engine noise in the related art and has the advantages of simple structure, easiness in processing and low processing cost.

Fig. 3 exemplarily shows a direction in which a large amount of exhaust gas generated from the fuel cell engine flows inside the casing 1, and the dotted arrows represent the direction in which the exhaust gas flows; firstly, a large amount of tail gas generated by a fuel cell engine is conveyed to the inner cavity of the shell 1 through the air inlet pipe 3, then the tail gas quickly breaks through the silencing through holes 210 on the partition plate 2 under the action of high pressure of the tail gas per se to fill a plurality of silencing cavities, and finally the tail gas is filtered and silenced and then is discharged out of the inner cavity of the shell 1 through the exhaust pipe 4.

Intake pipe 3 and blast pipe 4 can be according to the practical application demand with arbitrary suitable mode structure, for example, in some embodiments, refer to fig. 2 and show, intake pipe 3 and blast pipe 4 set up respectively on shell 1 about the relative both sides wall of width direction, intake pipe 3 is located body part in the shell 1 with blast pipe 4 is located body part in the shell 1 all is on a parallel with length direction extends, has guaranteed that intake pipe 3 and blast pipe 4 body are straight-through and perpendicular to baffle 2, does work each other with sound through-hole 210 on being favorable to high-pressure exhaust's transport and when running through baffle 2, converts acoustic energy into heat energy consumption, and the noise of certain frequency component has been effectively filtered, has improved noise cancelling effect.

In order to better ensure the stability of the inlet pipe 3 when delivering high-pressure gas, in some embodiments, referring to fig. 2, a pipe body portion of the inlet pipe 3 located in the housing 1 extends along the exhaust direction of the first exhaust port 310 and passes through at least one partition plate 2, and the inlet pipe 3 is fixedly connected with the at least one partition plate 2. Like this, can be located the body part of shell 1 to intake pipe 3 through baffle 2 and further consolidate for when high-pressure tail gas got into intake pipe 3, can reduce the body because the vibration that high-pressure gas produced, improved the stability of body, and be favorable to reducing the noise because of tail muffler vibration production. Fig. 2 shows an exemplary embodiment of the intake manifold 3 in the housing 1 with the pipe body part passing through a partition 2.

In some embodiments, referring to fig. 2, a plurality of third exhaust ports 330 arranged at intervals along the circumferential direction are provided on the sidewall of the pipe body portion of the air inlet pipe 3 located in the housing 1 near the end of the first exhaust port 310, so that noise with corresponding frequency is filtered through the third exhaust ports 330 before the tail gas enters the inner cavity of the housing 1, and the noise reduction effect can be enhanced.

In order to better ensure the stability of the exhaust pipe 4 when delivering high-pressure exhaust gas, in some embodiments, referring to fig. 2, a pipe body portion of the exhaust pipe 4 located in the housing 1 extends in a direction opposite to the air intake direction of the second air intake 410 and penetrates through at least one partition plate 2, and the exhaust pipe 4 is fixedly connected with the at least one partition plate 2. Like this, can be located the casing part of shell 1 to blast pipe 4 through baffle 2 and further consolidate for when high-pressure tail gas got into blast pipe 4, reduced the body because the vibration that high-pressure tail gas produced, improved the stability of body, do benefit to the noise that the tail silencer vibration that reduces produced. Fig. 2 shows an exemplary embodiment of the exhaust pipe 4 in the housing 1 with the housing part passing through 3 separating walls 2.

In order to better ensure the drainage of the exhaust pipe 4, in some embodiments, referring to fig. 2, the cross section of the pipe body portion of the exhaust pipe 4 located in the housing 1 is U-shaped, which is opened toward the bottom wall of the housing 1, and the pipe body portion and the bottom wall of the housing 1 jointly form an exhaust passage for the exhaust gas inside the housing 1 to exhaust. Through the exhaust passage of this U-shaped, can avoid the remaining of the inside water of shell 1, do benefit to the water clean discharge.

To achieve better sound attenuation, in some embodiments, as shown with reference to fig. 2, the first exhaust port 310 and the second intake port 410 are located in the same sound attenuation chamber. Therefore, on one hand, the tail gas is filtered and silenced by the plurality of silencing chambers and then is discharged out of the shell 1, so that the silencing effect can be further enhanced; on the other hand, the water in the tail gas is discharged completely in time.

The housing 1 may be configured in any suitable manner according to the actual application requirements, for example, in some embodiments, as shown in fig. 1, the housing 1 includes a housing 110 having an upward opening, and a cover 120 hermetically covering the opening and detachably connected to the housing 110, the cover 120 is configured to be detachably connected to the vehicle frame, and the cover 120 is provided with a weight-reducing groove 121. Like this, this tail row silencing device passes through lid 120 detachably and connects in the frame, is favorable to later stage easy maintenance, can improve work efficiency, and is suitable for reforming transform the used car to make it can reach the effect of amortization. In addition, the lightening groove 121 is used to reduce the weight of the tail muffler device to lighten the burden of the vehicle, which is advantageous for light weight design. The lightening slots 121 may be provided in any suitable manner, for example, may be configured as a plurality of strip-shaped grooves arranged at intervals in the width direction of the housing and each extending in the length direction of the housing; in addition, the connection between the housing 110 and the cover 120 and the connection between the cover 120 and the vehicle frame may be implemented by a bolt connection, for example, threaded holes for locking bolts are provided on the housing 110 and the vehicle frame, and through holes for passing bolts are provided on the cover 120, which is not limited in this disclosure.

In some specific embodiments, as shown in fig. 2, the housing 110 may include a bottom plate 111 and a side plate 112 disposed around a periphery of the bottom plate 111, a top of the side plate 112 encloses an opening of the housing 110, and a plurality of ribs 113 are disposed on an outer side wall of the side plate 112 at intervals along a circumferential direction of the housing 110 to enhance structural strength and stability of the housing 110. The reinforcing ribs 113 may be configured in any suitable manner, for example, as strip-shaped protrusions extending in the height direction of the housing 1, and the present disclosure is not particularly limited thereto.

In some embodiments, referring to fig. 1, a first connection port 130 for communicating with a drain pipe of an air compressor is provided on a side wall of the housing 1; and/or a second connecting port 140 for communicating with a water separator drain pipe and a third connecting port 150 for communicating with a water separator exhaust pipe are arranged on the side wall of the shell 1; and/or a fourth connecting port 160 for communicating with an exhaust pipe of the unloading valve is arranged on the side wall of the shell 1. Fig. 1 exemplarily shows an embodiment in which a first connection port 130 for communicating with a drain pipe of an air compressor, a second connection port 140 for communicating with a drain pipe of a water knockout drum, a third connection port 150 for communicating with an exhaust pipe of the water knockout drum, and a fourth connection port 160 for communicating with an exhaust pipe of an unloading valve are sequentially opened on a side wall of a housing 1. Like this, be used for the pipeline of discharging waste water or waste gas with air compressor machine, water knockout drum and off-load valve and the integrative structure of tail row silencing device integration, can solve air compressor machine, water knockout drum and off-load valve and occupy the problem that the pipe-line system that the discharge pipeline caused is disorderly separately to have overall structure simple, the space account for than little and highly integrated's advantage.

According to a second aspect of the present disclosure, a vehicle is also provided. The vehicle comprises a fuel cell engine and the tail exhaust silencing device for the fuel cell engine, wherein the first air inlet 320 of the air inlet pipe 3 of the tail exhaust silencing device is communicated with the tail gas discharge outlet of the fuel cell engine. This vehicle can solve the big problem of engine noise among the correlation technique, and has above-mentioned tail muffler's all beneficial effects, and this disclosure is no longer repeated here.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.