CN116031455A - Exhaust integrated device and hydrogen fuel cell system having the same - Google Patents

Abstract

The invention discloses an exhaust integration device and a hydrogen fuel cell system with the same, wherein the exhaust integration device comprises: barrel, inlet tube group, hydrogen pipe and outlet tube group, the inlet tube group includes inlet tube and a plurality of first baffle, and is a plurality of the first baffle overcoat is in on the inlet tube, inlet end cover with construct first cavity between the first baffle, adjacent two construct the second cavity between the first baffle, be provided with first through-hole on the inlet tube, the exit end of hydrogen pipe stretches into in at least one second cavity along the axial, be provided with the second through-hole on the hydrogen pipe, the outlet tube group includes the outlet tube, the inlet end of outlet tube with the outlet end of inlet tube separates, the outlet end of outlet tube is installed the gas outlet. The exhaust integrated device can be used for diluting the concentration of hydrogen in exhaust gas and improving the separation effect of steam and water while ensuring the noise reduction effect.

Description

Exhaust integrated device and hydrogen fuel cell system having the same

Technical Field

The present invention relates to the field of fuel cells, and more particularly, to an exhaust gas integration device and a hydrogen fuel cell system having the same.

Background

A hydrogen fuel cell is a device that generates electricity by reacting hydrogen with oxygen in the air in a cell stack, and is essentially an electrochemical reaction. The fuel is hydrogen and oxygen in the air, the air side participating in the reaction is called a cathode side, the hydrogen side participating in the reaction is called an anode side, the discharged matter is only water, and the hydrogen energy is called one of the clean energy sources of the final human beings, but the hydrogen fuel cell has exhaust noise, the generated water is easy to discharge into the external environment, a certain amount of hydrogen exists in the discharged tail gas, the hydrogen content is high, and potential safety hazards are easy to occur.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide an exhaust gas integration apparatus that can better dilute the concentration of hydrogen in exhaust gas and improve the separation effect of steam and water while ensuring the noise reduction effect.

An exhaust integration apparatus according to an embodiment of the present invention is used for a hydrogen fuel cell system, the exhaust integration apparatus including: the device comprises a cylinder body, a gas inlet end cover and a gas outlet end cover, wherein the cylinder body comprises a pipe body, and the gas inlet end cover and the gas outlet end cover are positioned at two ends of the pipe body; the air inlet pipe group comprises an air inlet pipe and a plurality of first partition boards, wherein the inlet end of the air inlet pipe is arranged at the first air inlet, the outlet end of the air inlet pipe stretches into the pipe body, the first partition boards are sleeved on the air inlet pipe in a sleeved mode, a first cavity is formed between the air inlet end cover and the first partition boards, a second cavity is formed between two adjacent first partition boards, and a first through hole is formed in the air inlet pipe; the inlet end of the hydrogen guide pipe is arranged at the second air inlet, the outlet end of the hydrogen guide pipe axially stretches into at least one second cavity, and a second through hole is formed in the hydrogen guide pipe; the air outlet pipe group comprises an air outlet hole pipe, the inlet end of the air outlet hole pipe is separated from the outlet end of the air inlet hole pipe, and the outlet end of the air outlet hole pipe is arranged at the air outlet.

According to the exhaust integrated device provided by the embodiment of the invention, the air inlet pipe and the hydrogen pipe are arranged in the same pipe body, so that the exhaust gas in the hydrogen pipe and the exhaust gas in the air inlet pipe can be well mixed, the hydrogen can be effectively diluted, potential safety hazards caused by too high concentration of the exhausted hydrogen can be avoided, the Helmholtz resonant cavity can be well constructed by sleeving a plurality of first partition plates on the air inlet pipe, noise is effectively eliminated, the air flow in the pipe body can be effectively interrupted by spacing the air inlet pipe and the air outlet pipe, the direct discharge of the vaporous water and the liquid water can be reduced, and the separation effect of the vaporous water can be further improved. Therefore, the exhaust integrated device can ensure the noise reduction effect, and simultaneously can better dilute the concentration of hydrogen in exhaust gas and improve the separation effect of steam and water.

In addition, the exhaust gas integration device of the present invention may further have the following additional technical features:

in some embodiments of the invention, the intake tube group further comprises: the blocking plate is arranged at the outlet end of the air inlet hole pipe so as to block the air outlet pipe orifice of the air inlet hole pipe; the second partition plate is sleeved outside the outlet end of the air inlet pipe, a third chamber is formed between the first partition plate and the second partition plate, and a third through hole is formed in the second partition plate.

Optionally, the outlet tube group further comprises a third partition board, the third partition board is sleeved at the inlet end of the outlet hole tube, and a fourth chamber is formed between the third partition board and the second partition board.

Optionally, a fifth chamber is formed between the third partition plate and the air outlet end cover, and a fourth through hole is formed in the air outlet hole pipe in the fifth chamber.

Optionally, the first partition, the second partition and the third partition are all provided with drainage channels, and the exhaust integration device further comprises a drainage pipe, and the drainage pipe is communicated with the drainage channels.

Optionally, the drain pipe is disposed between the second partition plate and the third partition plate, and/or the drain pipe is disposed between the third partition plate and the air outlet end cover.

In some embodiments of the invention, the number of the first through holes in the plurality of the second chambers gradually increases in a direction from the inlet end of the intake hole pipe to the outlet end of the intake hole pipe.

Optionally, the number of the first through holes in the first chamber is smaller than the number of the first through holes in the second chamber.

In some embodiments of the invention, the first partition plates are provided with three, and the three first partition plates are provided at even intervals in the axial direction.

The invention also provides a hydrogen fuel cell system with the exhaust integration device of the embodiment.

According to the hydrogen fuel cell system of the embodiment of the invention, by the exhaust integration device of the embodiment, the hydrogen content discharged by the hydrogen fuel cell system can be effectively reduced, and the effect of removing noise and improving steam-water separation can be satisfied.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of an exhaust gas integration apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a hydrogen pipe of the exhaust gas integration apparatus according to the embodiment of the invention.

Fig. 3 is a schematic structural view of a drain pipe of the exhaust gas integration apparatus according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a first separator of the exhaust gas integration apparatus according to an embodiment of the present invention, which does not cooperate with a hydrogen gas conduit.

Fig. 5 is a schematic structural view of a first separator of the exhaust gas integration apparatus according to an embodiment of the present invention, which is engaged with a hydrogen gas conduit.

Reference numerals:

an exhaust gas integration apparatus 100,

A pipe body 11, an air inlet end cover 12, an air outlet end cover 13,

An air inlet pipe 21, a first partition 22, a second partition 23, a closure plate 24,

A hydrogen pipe 31,

An outlet pipe 41, a third partition plate 42,

A first chamber 51, a second chamber 52, a third chamber 53, a fourth chamber 54, a fifth chamber 55,

A first through hole 61, a second through hole 62, a third through hole 62, a fourth through hole 64,

A drain groove 71 and a drain pipe 72.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

An exhaust gas integration apparatus 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

The exhaust gas integration apparatus 100 according to the embodiment of the present invention is used for a hydrogen fuel cell system including a hydrogen fuel cell, which is an apparatus for generating electricity by reacting hydrogen with oxygen in the air in a stack, which is electrochemical in nature, will be described herein. The fuel is hydrogen and oxygen in the air, the air side participating in the reaction is called a cathode side, the hydrogen side participating in the reaction is called an anode side, the discharged matter is only water, and the hydrogen energy is one of the ultimate clean energy sources of human beings and is a great strategic direction for energy structure transformation of various countries. For the cathode exhaust system of the hydrogen fuel cell, because the special design needs to consider the functions of noise elimination, steam-water separation, water drainage and the like, a water storage function is needed in some cases to meet specific requirements.

The exhaust noise of the fuel cell is one of the main noise sources of the stack system noise, and is different from the exhaust noise characteristics of the traditional fuel vehicle, the exhaust noise of the hydrogen fuel cell is generally not of order and is mainly broadband high-frequency airflow noise, so that the design of the exhaust system of the hydrogen fuel cell is necessarily different from that of the traditional fuel vehicle. At present, the research on the field of hydrogen energy exhaust noise is mainly insufficient, and the silencing frequency of the silencer is not matched with the frequency of an exhaust sound source, so that the silencing effect is poor, the exhaust noise can not be effectively reduced, and some manufacturers do not select to install the exhaust silencer even. When the hydrogen fuel cell works, the high pressure in the stack is required to be kept, the control is mainly carried out through an exhaust back pressure valve at the cathode side, flow noise is generated when air flows through the valve, under the working condition of particularly high power and high load, the large flow and the high stack pressure are required, the opening degree of the exhaust back pressure valve is small at the moment, the air flow speed is very high, the high-frequency broadband air flow noise is very obvious, the high-frequency broadband air flow noise can reach more than 120dB generally, and the subjective feeling is very harsh and intolerable.

When the hydrogen fuel cell works, a small part of steam-water and nitrogen in the stack can be back-diffused from the cathode side to the anode side, the anode side needs to periodically and intermittently discharge tail gas according to the condition of the hydrogen concentration, and unreacted hydrogen can be discharged along with the steam-state water, the liquid water and a small amount of impurity gas. The hydrogen gas can explode when reaching a certain concentration in the air, and in order to prevent the discharged hydrogen gas from reaching the explosive concentration (the concentration of the hydrogen gas is generally required to be less than 4 percent), the tail gas with the hydrogen gas needs to be diluted and then discharged.

In addition, when the hydrogen fuel cell is operated, the cathode side emissions are mainly air, steam water, liquid water, and a small amount of hydrogen gas. The water of the discharged materials is generally required to be separated for centralized discharge or stored and collected for secondary use, a steam-water separation structure is required to be designed for water separation, and an additional water separation structure is required to be additionally arranged for separately designing the steam-water separation structure, so that the cost is increased. In order to save cost, even without steam-water separation, a plurality of manufacturers directly discharge water in the tail gas into the external environment, so that water is wasted, and in addition, under the condition of low air temperature in winter, the water is directly discharged onto a road surface, so that the road is frozen, and the traffic accident risk is generated.

And the exhaust integrated device 100 of this application, under the circumstances that does not increase steam-water separation device alone, utilize silencer acoustic structure, with steam-water separation function integration to the silencer on, utilize silencer noise elimination structure, with hydrogen dilution function and steam-water separation function integration to the silencer on, can improve system reliability, reduce cost saves space, conveniently carries out exhaust system installation. The application of the exhaust gas integration apparatus 100 of the present application to a hydrogen fuel cell system will be specifically described below as an example, but it should be noted that the application is not limited to the application environment and the application equipment of the exhaust gas integration apparatus 100, since the application of the exhaust gas integration apparatus 100 of the present application may be applied to not only a hydrogen fuel cell system but also other environments where two gases (e.g., hydrogen and exhaust gas) need to be mixed and water in the two gases is separated.

As shown in fig. 1, an exhaust integration apparatus 100 according to an embodiment of the present invention includes a cylindrical body including a tube body 11, an inlet end cap 12 and an outlet end cap 13 located at both ends of the tube body 11, the inlet end cap 12 having a first inlet and a second inlet, the outlet end cap 13 having an outlet, the inlet tube group including an inlet hole tube 21 and a plurality of first partition plates 22, an inlet end of the inlet hole tube 21 being installed at the first inlet, an outlet end of the inlet hole tube 21 extending into the tube body 11, the plurality of first partition plates 22 being sheathed on the inlet hole tube 21, a first chamber 51 being constructed between the inlet end cap 12 and the first partition plates 22, a second chamber 52 being constructed between the adjacent two first partition plates 22, a first through hole 61 being provided in the inlet hole tube 21, an inlet end of the hydrogen conduit 31 being installed at the second inlet, an outlet end of the hydrogen conduit 31 extending axially into at least one second chamber 52, a second through hole 62 being provided in the hydrogen conduit 31, the outlet tube group including an outlet hole tube 41, the outlet end of the outlet hole tube 41 being installed at the outlet end of the outlet hole tube 41 being spaced from the outlet end of the inlet hole tube 21 at the outlet end of the outlet hole tube 41.

With further reference to the specific example shown in fig. 1, the inlet end of the inlet pipe 21 is communicated with the cathode pipe of the hydrogen fuel cell system, so that the exhaust gas (having air, steam water, liquid water and a small amount of hydrogen) in the cathode pipe can enter the inlet pipe 21, the inlet end of the hydrogen pipe 31 is communicated with the anode pipe of the hydrogen fuel cell system, the exhaust gas (having hydrogen in the anode pipe) in the anode pipe can enter the hydrogen pipe 31, the exhaust gas in the hydrogen pipe 31 can enter the first chamber 51 or the second chamber 52 from the second through hole 62, the exhaust gas in the inlet pipe 21 can enter the first chamber 51 or the second chamber 52 from the first through hole 61, and then the exhaust gas in the hydrogen pipe 31 and the exhaust gas in the inlet pipe 21 can be well mixed, in addition, the first chamber 51 and the second chamber 52 are both perforated resonant cavities, and according to the helmholtz resonance principle, the frequency of the sound elimination can be sequentially controlled from the first chamber 51 and the second chamber 52 (i.e. the frequency of the left chamber) to the right, i.e. the frequency of the second chamber 61 can be sequentially increased along the axial direction by designing the wall thickness of the inlet pipe 21 and the second chamber (i.e. the frequency of 2500).

In addition, the air inlet hole pipe 21 and the air outlet hole pipe 41 are spaced apart in the application, so that the air flow in the pipe body 11 can be effectively interrupted, the direct discharge of the vaporous water and the liquid water can be reduced, and the separation effect of the vapor and the water can be improved.

According to the exhaust integration device 100 of the embodiment of the invention, the inlet pipe 21 and the hydrogen pipe 31 are arranged in the same pipe body 11, so that the exhaust gas in the hydrogen pipe 31 and the exhaust gas in the inlet pipe 21 can be well mixed, the hydrogen can be effectively diluted, potential safety hazards caused by too high concentration of the exhausted hydrogen can be avoided, the Helmholtz resonant cavity can be well constructed by sleeving a plurality of first partition boards 22 on the inlet pipe 21, noise is effectively eliminated, the air flow in the pipe body 11 can be effectively interrupted by spacing the inlet pipe 21 and the outlet pipe 41, direct exhaust of vapor water and liquid water can be reduced, and the separation effect of vapor water can be improved. Thus, the exhaust gas integration apparatus 100 of the present application can better dilute the hydrogen concentration in the exhaust gas and improve the separation effect of the steam and water while ensuring the noise reduction effect.

In some embodiments of the present invention, the air inlet pipe set further includes a blocking plate 24 and a second partition plate 23, the blocking plate 24 is installed at the outlet end of the air inlet pipe 21 to block the outlet opening of the air inlet pipe 21, the second partition plate 23 is sleeved at the outlet end of the air inlet pipe 21, a third chamber 53 is formed between the first partition plate 22 and the second partition plate 23, and a third through hole 63 is provided in the second partition plate 23. Referring to fig. 1, the air outlet pipe orifice mounting blocking plate 24 of the air inlet pipe 21 can effectively change the direction of the air flow, so that the air in the air inlet pipe 21 is discharged from the first through hole 61 to the third chamber 53 and then flows from the third through hole 63 to the air outlet, thereby further improving the effect of steam-water separation. Specifically, the steam-water separation can be divided into four specific processes, wherein the first process is that the gas entering the air inlet pipe 21 is partially separated by the blocking effect of the blocking plate 24; the second process is that the gas of the inlet pipe 21 is partially separated from the steam when passing through the first through hole 61 of the third chamber 53 due to the effect of the blocking cover; the third process is that the gas entering the third chamber 53 is directly sprayed onto the inner surface of the cylinder, and the water in part of the gas is separated out to play a role of steam-water separation because the cylinder and the external environment are subjected to heat exchange continuously and the temperature is lower than the exhaust temperature. The fourth process is that when the gas passes through the third through holes 63, a part of the soda is separated, whereby a large amount of soda is separated in this process.

Optionally, referring to fig. 1, the outlet tube set further includes a third partition 42, where the third partition 42 is sleeved on the air inlet end of the outlet tube 41, and a fourth chamber 54 is formed between the third partition 42 and the second partition 23, so that when the air passes through the third through hole 63, a part of the air can be sprayed onto the third partition 42 to further separate the steam and water, and then the air is bent in the radial direction of the tube body 11 to enter the outlet tube 41 from the air inlet opening of the outlet tube 41, and because a closed fourth chamber 54 is formed between the third partition 42 and the outlet end cover 13, a part of the air can pass through the third through hole 63 to enter the fourth chamber 54 to further separate the steam and water, and after the air passes through the above-mentioned layer steam and water separation, the air can be discharged from the air outlet opening of the outlet tube 41.

Further, referring to fig. 1, a fifth chamber 55 is formed between the third partition plate 42 and the air outlet end cover 13, and a fourth through hole 64 is provided on the air outlet pipe 41 in the fifth chamber 55, so that the air entering the air outlet pipe 41 can also pass through the fourth through hole 64 to enter the fifth chamber 55, thereby further increasing the circulation path of the air and further realizing separation of the steam and water.

In addition, it should be noted that in the above process, not only the separation of steam and water, but also the sufficient mixing of hydrogen exist to realize the sufficient dilution of hydrogen, so that the tail gas diluted uniformly is discharged, and the hydrogen content in the tail gas can be further reduced.

In some embodiments of the present invention, referring to fig. 1, 4 and 5, each of the first, second and third partitions 22, 23 and 42 is provided with a drain groove 71, and the exhaust integration apparatus 100 further includes a drain pipe 72, the drain pipe 72 being in communication with the drain groove 71, whereby when the steam and water are separated, the liquid water is collected in the pipe body 11 and then can pass through the drain groove 71 to be finally discharged from the drain pipe 72, and the structure is simple, and the drainage effect is good.

Optionally, a drain pipe 72 is provided between the second partition 23 and the third partition 42, and/or the drain pipe 72 is provided between the third partition 42 and the outlet end cover 13. Referring to a specific example shown in fig. 1, two drain pipes 72 are provided, one drain pipe 72 is provided between the second partition 23 and the third partition 42, and the other drain pipe 72 is provided between the third partition 42 and the outlet end cover 13, whereby not only can the collected water be discharged well, but also the number of drain pipes 72 can be reduced.

Alternatively, the number of the first through holes 61 in the plurality of second chambers 52 gradually increases in the direction from the inlet end of the intake hole pipe 21 to the outlet end of the intake hole pipe 21, whereby, as shown in fig. 1, the frequency of sound damping of the plurality of second chambers 52 sequentially increases in the left-to-right direction, and the sound damping effect can be improved.

Alternatively, the number of the first through holes 61 in the first chamber 51 is smaller than the number of the first through holes 61 in the second chamber 52, whereby the cancellation frequency can be layered to further improve the sound cancellation effect.

It should be noted that, as shown in fig. 1, the first chamber 51 has one, the second chamber 52 has two, the number of the first through holes 61 in the third chamber 53 is independent of the number of the first through holes 61 in the first chamber 51, the number of the first through holes 61 in the third chamber is independent of the number of the first through holes 61 in the second chamber 52, and the number of the first through holes 61 in the third chamber 53 is used for adjusting the back pressure in addition to the air flow function, that is, the number of the first through holes 61 in the third chamber 53 can be freely designed on the premise of meeting the back pressure, which is not limited herein.

Further, the number of the fourth through holes 64 in the fifth chamber 55 is mainly designed to eliminate high frequency noise, and the larger the number of the fourth through holes 64 is, the better the effect of eliminating high frequency noise is.

The lengths of the first chamber 51, the second chamber 52, the third chamber 53, the fourth chamber 54 and the fifth chamber 55 are not limited, and can be freely designed according to the noise elimination frequency, wherein the third chamber 53 can be designed according to the requirement of the back pressure, that is, if the back pressure is required to be lower, the third chamber 53 can be made longer, or the first through holes 61 are designed more, if the back pressure is required to be higher, the third chamber 53 can be made to be at the end, or the first through holes 61 are designed less.

In some embodiments of the present invention, the first partition plates 22 are provided in three, and the three first partition plates 22 are provided at even intervals in the axial direction, whereby the sound damping frequency can be controlled well.

The present invention also proposes a hydrogen fuel cell system having the exhaust integration apparatus 100 of the above embodiment.

According to the hydrogen fuel cell system of the embodiment of the present invention, by providing the exhaust integration apparatus 100 of the above-described embodiment, it is possible to effectively reduce the hydrogen content discharged from the hydrogen fuel cell system and to improve the effect of steam-water separation while satisfying the noise elimination.

Other configurations and operations of the hydrogen fuel cell system and the exhaust integration apparatus 100 according to the embodiment of the present invention are known to those skilled in the art, and will not be described in detail herein.

In the description of the present specification, reference to the terms "some embodiments," "optionally," "further," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An exhaust gas integration apparatus for a hydrogen fuel cell system, comprising:

the device comprises a cylinder body, wherein the cylinder body comprises a pipe body (11), and an air inlet end cover (12) and an air outlet end cover (13) which are positioned at two ends of the pipe body (11), the air inlet end cover (12) is provided with a first air inlet and a second air inlet, and the air outlet end cover (13) is provided with an air outlet;

the air inlet pipe group comprises an air inlet pipe (21) and a plurality of first partition boards (22), wherein the inlet end of the air inlet pipe (21) is installed at the first air inlet, the outlet end of the air inlet pipe (21) stretches into the pipe body (11), the air inlet pipe (21) is sleeved with the first partition boards (22), a first chamber (51) is formed between an air inlet end cover (12) and the first partition boards (22), a second chamber (52) is formed between two adjacent first partition boards (22), and a first through hole (61) is formed in the air inlet pipe (21);

the inlet end of the hydrogen guide pipe (31) is arranged at the second air inlet, the outlet end of the hydrogen guide pipe (31) axially stretches into at least one second chamber (52), and a second through hole (62) is formed in the hydrogen guide pipe (31);

the air outlet pipe group comprises an air outlet hole pipe (41), the inlet end of the air outlet hole pipe (41) is separated from the outlet end of the air inlet hole pipe (21), and the outlet end of the air outlet hole pipe (41) is arranged at the air outlet.

2. The exhaust gas integration apparatus according to claim 1, wherein the intake pipe group further comprises:

a blocking plate (24), wherein the blocking plate (24) is arranged at the outlet end of the air inlet pipe (21) so as to block the air outlet pipe orifice of the air inlet pipe (21);

the second partition plate (23), the second partition plate (23) is sleeved at the outlet end of the air inlet pipe (21), a third chamber (53) is formed between the first partition plate (22) and the second partition plate (23), and a third through hole (63) is formed in the second partition plate (23).

3. The exhaust gas integration apparatus according to claim 2, wherein the gas outlet pipe group further includes a third partition plate (42), the third partition plate (42) is sleeved on the gas inlet end of the gas outlet pipe (41), and a fourth chamber (54) is configured between the third partition plate (42) and the second partition plate (23).

4. An exhaust gas integration device according to claim 3, wherein a fifth chamber (55) is formed between the third partition (42) and the gas outlet end cap (13), and a fourth through hole (64) is provided in the gas outlet pipe (41) in the fifth chamber (55).

5. The exhaust gas integration apparatus according to claim 4, wherein the first partition plate (22), the second partition plate (23), and the third partition plate (42) are each provided with a drain groove (71), the exhaust gas integration apparatus further comprising a drain pipe (72), the drain pipe (72) being in communication with the drain groove (71).

6. The exhaust gas integration apparatus according to claim 5, wherein the drain pipe (72) is provided between the second partition (23) and the third partition (42), and/or the drain pipe (72) is provided between the third partition (42) and the outlet end cover (13).

7. The exhaust gas integration apparatus according to claim 1, wherein the number of the first through holes (61) in the plurality of the second chambers (52) gradually increases in a direction from an inlet end of the intake hole pipe (21) to an outlet end of the intake hole pipe (21).

8. The exhaust gas integration device according to claim 2, wherein the number of the first through holes (61) in the first chamber (51) is smaller than the number of the first through holes (61) in the second chamber (52).

9. The exhaust gas integration apparatus according to claim 1, wherein three of the first partition plates (22) are provided, and three of the first partition plates (22) are provided at uniform intervals in an axial direction.

10. A hydrogen fuel cell system comprising the exhaust gas integration apparatus of any one of claims 1 to 9.

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