CN115107503A - Hydrogen exhaust device of fuel cell - Google Patents
Hydrogen exhaust device of fuel cell Download PDFInfo
- Publication number
- CN115107503A CN115107503A CN202210881494.3A CN202210881494A CN115107503A CN 115107503 A CN115107503 A CN 115107503A CN 202210881494 A CN202210881494 A CN 202210881494A CN 115107503 A CN115107503 A CN 115107503A
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- Prior art keywords
- fuel cell
- gas
- pipe
- buffer
- branch pipes
- Prior art date
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- Pending
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- 239000000446 fuel Substances 0.000 title claims abstract description 37
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000001257 hydrogen Substances 0.000 title claims abstract description 24
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000007872 degassing Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 35
- 239000000126 substance Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000002912 waste gas Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a hydrogen gas exhaust device for a fuel cell, which comprises an air guide cylinder and two branch pipes connected to one end of the air guide cylinder, wherein a mixing box is sleeved on the outer surfaces of the two branch pipes, one end of the mixing box is connected with a buffer pipe through a connecting pipe, and one end of the buffer pipe is communicated with an exhaust pipe head; the invention relates to the technical field of fuel cells, and the gas guide cylinder and the branch pipes are matched to enable the gas guide cylinder to respectively enter the two branch pipes, due to the opposite design of the connecting grooves on the two branch pipes, gas is discharged through the connecting grooves on the two branch pipes, and the gas in the two branch pipes generates convection, so that substances in the gas can be fully mixed, high-concentration hydrogen is prevented from being generated at the discharge port, when the inside of the connecting pipe passes through the gas buffer pipe of preliminary mixed flow, a fan is influenced by the airflow to rotate, the stirring frame can be driven to rotate through the central shaft, and the gas can be further uniformly mixed.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a hydrogen exhaust device of a fuel cell.
Background
The fuel cell automobile works on the principle that hydrogen as fuel is subjected to oxidation-reduction chemical reaction with oxygen in the atmosphere in a fuel cell carried by the automobile to generate electric energy to drive a motor to work, the motor drives a mechanical transmission structure in the automobile to further drive a front axle (or a rear axle) and other walking mechanical structures of the automobile to work, and therefore the electric automobile is driven to move forward. The core component is a fuel cell. The reaction of the fuel cell results in the production of very little carbon dioxide and nitrogen oxides, and the by-product is mainly produced water, so the fuel cell is called a green new environment-friendly automobile.
Chinese patent discloses a hydrogen fuel cell car exhaust apparatus (202010729090.3), include the barrel and fix the connecting tube at barrel left end intermediate position, the barrel right-hand member sets up the big right cone cover of arranging a left side, the barrel annular outside sets up solid fixed ring, the solid fixed ring of cone cover left end threaded connection, gu equidistant two at least fixed plates of fixing between fixed ring and the barrel left part, the inside intermediate position of barrel rotates the main shaft of arranging about connecting, both ends all set up fixed lid about the main shaft, and two fixed lids set up respectively inside barrel is inside and the cone cover, four at least flabellums of fixed lid annular outer end equidistance fixed connection, compare with prior art, and this comparison file has following beneficial effect: carry out the homogeneous mixing through hydrogen and vapor in the flabellum with waste gas, also mix waste gas and outside air, reduce hydrogen concentration in the waste gas, prevent to produce high concentration hydrogen at the discharge port, promote the security.
Chinese patent discloses an exhaust apparatus of a fuel cell vehicle, (201280008365.8) in order to achieve smooth introduction of air into a fuel cell, air flow resistance of an exhaust passage is reduced and water is prevented from intruding into an exhaust duct. In the present invention, in the exhaust device of the fuel cell vehicle, the exhaust chamber is fitted to a lower surface of the front cover, the exhaust duct extends upward in a vertical direction from a rear portion of the fuel cell case, the exhaust port at an upper end of the exhaust duct opens into an interior of the exhaust chamber, a through hole through which the interior of the exhaust chamber communicates with the outside space is formed in a portion of the front cover in front of the exhaust port in the vehicle front-rear direction, the through hole is covered by the cover, and an opening portion that is open to the vehicle rear side and is located above an upper surface of the front cover and is apart from the upper surface of the front cover is formed in the cover.
Disclosure of Invention
The invention provides a hydrogen exhaust device of a fuel cell, which aims to solve the problems that hydrogen and water vapor in an exhaust pipe are not uniformly mixed and the water and air exhaust effect is poor at present.
The invention provides a fuel cell hydrogen exhaust device, which comprises an air guide cylinder and two branch pipes connected to one end of the air guide cylinder, wherein a mixing box is sleeved on the outer surfaces of the two branch pipes, one end of the mixing box is connected with a buffer pipe through a connecting pipe, and one end of the buffer pipe is communicated with an exhaust pipe head;
a plurality of connecting grooves are formed in one side of the opposite side of each of the two branch pipes, and a sealing element matched with one side of the mixing box is fixedly connected between the end portions of the two branch pipes.
Preferably, the buffer tube is fixedly provided with a buffer plate inside, and the middle part of the buffer plate is connected with a fan and a stirring frame through a central shaft.
Preferably, the fan is disposed at one side close to the connection pipe, and the agitator is disposed at the other side opposite to the fan.
Preferably, the bottom wall of the exhaust pipe head is provided with an upward extending slope, so that the inside of the exhaust pipe head forms a trapezoid-shaped groove exhaust port.
Preferably, the junction of exhaust pipe head and buffer tube has seted up water drainage tank, water drainage tank's bottom intercommunication has the drain pipe of downward sloping.
Preferably, the U-shaped top cap can be dismantled at the top of buffer tube, the equal fixedly connected with first installation piece in both sides around the U-shaped top cap, the equal fixedly connected with second installation piece in both sides around the buffer tube.
Preferably, the first mounting block and the second mounting block are fixedly connected through screws, and the screws are arranged from bottom to top from the second mounting block and the first mounting block.
Preferably, the front side and the rear side of the buffer tube are both provided with limiting mechanisms for limiting the screws.
Preferably, the limiting mechanism comprises a sleeve fixed on one side of the buffer tube, a telescopic rod sliding on one side of the sleeve and a limiting stopper fixed at one end of the telescopic rod, a spring is sleeved on the outer surface of the telescopic rod, and a pushing block is fixedly connected to the bottom of the limiting stopper.
Preferably, one end of the exhaust pipe head is fixedly connected with a U-shaped stop block.
Preferably, one end of the stirring frame is rotatably connected with a cross frame arranged on the inner wall of the buffer tube.
Compared with the prior art, the technical scheme of the application has the beneficial effects that:
according to the invention, the gas guide cylinder is matched with the branch pipes, so that the gas guide cylinder respectively enters the two branch pipes, due to the opposite design of the connecting grooves on the two branch pipes, the gas is discharged through the connecting grooves on the two branch pipes, the gas in the two branch pipes generates convection, the substances in the gas can be fully mixed, the high-concentration hydrogen is prevented from being generated at the discharge port, when the gas in the connecting pipe passes through the gas buffer pipe with preliminary mixed flow, the fan is influenced by the gas flow to rotate, the stirring frame can be driven to rotate through the central shaft, the gas can be further uniformly mixed, the gas flow speed of the gas flow can be greatly reduced under the action of the buffer plate, and the gas is prevented from being discharged from the gas discharge pipe head at a high speed.
The invention helps the gas flow by the arrangement of the slope extending upwards, avoids excessive gas flow from staying in the exhaust pipe head after waste gas passes through the buffer pipe, the waste gas of the fuel cell is easier to discharge from the trapezoidal groove exhaust port because the waste gas is lighter than the air with normal temperature, and the water is easy to flow back because of the arrangement of the slope, when the water flows back, the water flows into the drainage groove from the bottom of the slope and flows into the drainage pipe, and is discharged through the drainage pipe, thereby realizing the separate discharge of the water and the waste gas, and avoiding the water from flowing into the exhaust system.
Drawings
Fig. 1 is a schematic structural diagram of a hydrogen exhaust device of a fuel cell according to the present invention.
Fig. 2 is an exploded view of a fuel cell hydrogen exhaust apparatus according to the present invention.
Fig. 3 is a structural sectional view of a hydrogen exhaust apparatus for a fuel cell according to the present invention.
Fig. 4 is a partially enlarged view of a portion a in fig. 2.
In the figure: 1. an air guide cylinder; 2. a branch pipe; 3. a mixing box; 4. a connecting pipe; 5. a buffer tube; 6. an exhaust pipe head; 7. connecting grooves; 8. a seal member; 9. a buffer plate; 10. a fan; 11. a stirring frame; 12. a water discharge tank; 13. a drain pipe; 14. a U-shaped top cover; 15. a first mounting block; 16. a second mounting block; 17. a screw; 18. a sleeve; 19. a telescopic rod; 20. a limit stopper; 21. a spring; 22. a pushing block; 23. a U-shaped stop block; 24. a cross; 25. a ramp.
Detailed Description
In the following, the embodiments of the present invention will be described in detail with reference to the drawings in the following, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a hydrogen gas exhaust device of a fuel cell, which comprises an air guide cylinder 1 and two branch pipes 2 connected to one end of the air guide cylinder 1, wherein the outer surfaces of the two branch pipes 2 are sleeved with a mixing box 3, one end of the mixing box 3 is connected with a buffer pipe 5 through a connecting pipe 4, and one end of the buffer pipe 5 is communicated with an exhaust pipe head 6;
a plurality of spread grooves 7 have all been seted up to two bleeder 2 opposite side one sides, fixedly connected with between the tip of two bleeder 2 with the sealing member 8 of mixing box 3 one side looks adaptation.
Specifically, firstly, the gas cylinder 1 is communicated with the exhaust gas path of the hydrogen fuel cell automobile, so that the outside air can generate airflow in the running process of the hydrogen fuel cell automobile, the airflow enters the gas cylinder 1 and then respectively enters the two branch pipes 2 from the gas cylinder 1, and due to the opposite design of the connecting grooves 7 on the two branch pipes 2, the gas is discharged through the connecting grooves 7 on the two branch pipes 2, so that the gas in the two branch pipes 2 generates convection, the substances in the gas can be fully mixed, the high-concentration hydrogen is prevented from being generated at the discharge port, and the gas mixed in the mixing box 3 enters the buffer pipe 5 through the connecting pipe 4.
In another embodiment, referring to fig. 2, buffer tube 5 is fixedly mounted with a buffer plate 9 inside, and a fan 10 and a stirring frame 11 are connected to the middle of buffer plate 9 through a central shaft, fan 10 is disposed on one side close to connecting tube 4, and stirring frame 11 is disposed on the opposite side of fan 10.
When the inside gaseous buffer tube 5 of preliminary mixed flow of process of connecting pipe 4, the influence fan 10 of receiving the air current rotates, can drive stirring frame 11 through the center pin and rotate, can be further carry out the misce bene to gas to the air current can be very big reduction air velocity under the effect of buffer board 9, avoid the high-speed exhaust pipe head 6 discharge from of gas.
In another embodiment, referring to fig. 3, the bottom wall of the exhaust pipe head 6 is provided with an upward extending slope, so that the inside of the exhaust pipe head 6 forms a trapezoidal groove exhaust port.
The arrangement of the trapezoidal groove exhaust port makes use of the characteristic that the exhaust gas of the fuel cell is lighter than the air at normal temperature, so that the arrangement of the upward extending slope helps the gas flow, and avoids the excessive air flow from staying in the exhaust pipe head 6 after the exhaust gas passes through the buffer pipe 5.
In another embodiment, referring to fig. 3, a drain groove 12 is opened at the joint of the exhaust pipe head 6 and the buffer pipe 5, and a drain pipe 13 inclined downwards is communicated with the bottom of the drain groove 12.
Can realize gas-liquid separation through the setting of water drainage tank 12 and drain pipe 13, separately discharge moisture and waste gas to the discharged moisture all directly uses and can drink even, avoids moisture to flow back along the slope 25 of exhaust pipe head 6 diapire simultaneously.
In another embodiment, referring to fig. 2 and 3, a U-shaped top cover 14 is detachably mounted on the top of the buffer tube 5, first mounting blocks 15 are fixedly connected to both front and rear sides of the U-shaped top cover 14, second mounting blocks 16 are fixedly connected to both front and rear sides of the buffer tube 5, the first mounting blocks 15 and the second mounting blocks 16 are fixedly connected through screws 17, and the screws 17 are arranged from bottom to top from the second mounting blocks 16 and the first mounting blocks 15.
The cooperation through first installation piece 15, second installation piece 16 and screw 17 is convenient for fix the top cap, owing to receive the restriction of automobile body, screw 17 sets up from bottom to top, conveniently takes out screw 17, is convenient for dismantle U-shaped top cap 14 from buffer pipe 5 top consequently, is convenient for maintain and change fan 10 and stirring frame 11.
In another embodiment, referring to fig. 2 and 4, both the front and rear sides of buffer tube 5 are provided with a limiting mechanism for limiting screw 17; the limiting mechanism comprises a sleeve 18 fixed on one side of the buffer tube 5, an expansion rod 19 sliding on one side of the sleeve 18 and a limiting stopper 20 fixed at one end of the expansion rod 19, a spring 21 is sleeved on the outer surface of the expansion rod 19, and a pushing block 22 is fixedly connected to the bottom of the limiting stopper 20.
Because the car can be the shake of nature constantly in the in-process of traveling, screw 17 is shaken out from the below of second installation piece 16 easily, consequently promote piece 22 and can carry on spacingly to screw 17 under spring 21's thrust effect, avoid screw 17 to be shaken out, when needs are dismantled the top cap, through promoting and promote piece 22, promote piece 22 and promote telescopic link 19 and accomodate in sleeve pipe 18, compress spring 21 simultaneously, make and promote piece 22 and shift out screw 17, be convenient for unscrew screw 17.
In another embodiment, referring to fig. 2, a U-shaped stop 23 is fixedly connected to one end of the exhaust pipe head 6.
The U-shaped stop 23 can play a certain role in dust prevention and water prevention.
In another embodiment, referring to FIGS. 2 and 3, one end of the agitator frame 11 is rotatably connected to a cross 24 disposed on the inner wall of the buffer tube 5.
The cross 24 ensures a stable rotation of the agitator frame 11.
The above description is only a part of or preferred embodiments of the present invention, and neither the text nor the drawings should be construed as limiting the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings or directly/indirectly applied to other related technical fields in the spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. The fuel cell hydrogen gas exhaust device is characterized by comprising an air guide cylinder (1) and two branch pipes (2) connected to one end of the air guide cylinder (1), wherein the outer surfaces of the two branch pipes (2) are sleeved with a mixing box (3), one end of the mixing box (3) is connected with a buffer pipe (5) through a connecting pipe (4), and one end of the buffer pipe (5) is communicated with an exhaust pipe head (6);
two lateral (2) opposite side one side has all seted up a plurality of spread grooves (7), two fixedly connected with between the tip of lateral (2) and mixing box (3) one side looks adaptation's sealing member (8).
2. The fuel cell hydrogen gas exhaust device according to claim 1, wherein a buffer plate (9) is fixedly installed inside the buffer tube (5), and a fan (10) and a stirring frame (11) are connected to the middle of the buffer plate (9) through a central shaft.
3. The fuel cell hydrogen gas exhaust apparatus according to claim 2, wherein the fan (10) is provided on one side near the connecting pipe (4), and the stirring frame (11) is provided on the opposite side of the fan (10).
4. The fuel cell hydrogen vent apparatus according to claim 1, wherein the bottom wall of the vent pipe head (6) is provided with an upwardly extending slope (25) to form a trapezoidal groove vent port in the interior of the vent pipe head (6).
5. The fuel cell hydrogen exhaust device according to claim 1, wherein a drain groove (12) is formed at the joint of the exhaust pipe head (6) and the buffer pipe (5), and a drain pipe (13) inclined downwards is communicated with the bottom of the drain groove (12).
6. The fuel cell hydrogen gas exhaust device according to claim 1, wherein a U-shaped top cover (14) is detachably attached to the top of the buffer tube (5), first mounting blocks (15) are fixedly attached to both the front and rear sides of the U-shaped top cover (14), and second mounting blocks (16) are fixedly attached to both the front and rear sides of the buffer tube (5).
7. The fuel cell hydrogen exhaust device according to claim 6, wherein the first mounting block (15) and the second mounting block (16) are fixedly connected by a screw (17), and the screw (17) is arranged from bottom to top from the second mounting block (16) and the first mounting block (15).
8. The fuel cell hydrogen gas exhaust device according to claim 1, wherein the buffer tube (5) is provided with a limiting mechanism for limiting a screw (17) at both the front and rear sides thereof;
the limiting mechanism comprises a sleeve (18) fixed on one side of the buffer tube (5), a telescopic rod (19) sliding on one side of the sleeve (18) and a limiting stopper (20) fixed at one end of the telescopic rod (19), a spring (21) is sleeved on the outer surface of the telescopic rod (19), and a pushing block (22) is fixedly connected to the bottom of the limiting stopper (20).
9. The fuel cell hydrogen exhaust device according to claim 1, wherein a U-shaped stopper (23) is fixedly connected to one end of the exhaust pipe head (6).
10. A fuel cell hydrogen degassing device according to claim 3, characterized in that one end of said stirring frame (11) is rotatably connected to a cross (24) provided on the inner wall of said buffer tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210881494.3A CN115107503A (en) | 2022-07-26 | 2022-07-26 | Hydrogen exhaust device of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210881494.3A CN115107503A (en) | 2022-07-26 | 2022-07-26 | Hydrogen exhaust device of fuel cell |
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| Publication Number | Publication Date |
|---|---|
| CN115107503A true CN115107503A (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210881494.3A Pending CN115107503A (en) | 2022-07-26 | 2022-07-26 | Hydrogen exhaust device of fuel cell |
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| CN (1) | CN115107503A (en) |
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