CN114030350A - Air filtering and air inlet system of fuel cell automobile - Google Patents
Air filtering and air inlet system of fuel cell automobile Download PDFInfo
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- CN114030350A CN114030350A CN202111279954.7A CN202111279954A CN114030350A CN 114030350 A CN114030350 A CN 114030350A CN 202111279954 A CN202111279954 A CN 202111279954A CN 114030350 A CN114030350 A CN 114030350A
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- 239000000446 fuel Substances 0.000 title claims abstract description 61
- 238000001914 filtration Methods 0.000 title description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
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- 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
- B60K13/02—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
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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
- 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
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- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Fuel Cell (AREA)
Abstract
The application discloses empty air intake system that strains of fuel cell car relates to vehicle engineering technical field, and it includes: the air inlet pipe assembly comprises an air inlet cylinder and an air inlet pipe which are communicated with each other, the air inlet direction of the air inlet cylinder is arranged obliquely upwards, and the area of an air inlet of the air inlet cylinder is larger than or equal to the cross section area of the air inlet pipe; the air filter is connected with the air outlet of the air inlet pipe at the air inlet, and the air outlet of the air filter is respectively communicated with an engine air inlet pipeline and a brake air compressor air inlet pipeline; check valves are arranged in the air inlet pipeline of the engine and the air inlet pipeline of the braking air compressor. The air filter air inlet system of the fuel cell automobile can save space occupation, reduce the cost of the whole automobile, comprehensively improve the air inlet quality and reduce the maintenance frequency of a drier of a brake system; meanwhile, air backflow can be effectively prevented, air is prevented from being sucked from another air compressor when a single air compressor works, and the fact that air sources are all from an air filter is guaranteed.
Description
Technical Field
The application relates to the technical field of vehicle engineering, in particular to an air filtering and air inlet system of a fuel cell automobile.
Background
Currently, fuel cell vehicles are marketed as core fuel cells. Through the chemical action of hydrogen and oxygen, the hydrogen is directly converted into electric energy power. In a fuel cell vehicle, especially a medium and heavy duty fuel cell truck, oxygen (air) for the reaction of a fuel cell engine is filtered by an air filter intake system and then sent to an air compressor of the fuel cell engine. The air brake system and part of the mechanism of the vehicle such as an air bag suspension, an air bag seat, an air horn and the like are compressed by an air compressor of the brake system, and an air source for braking the air compressor is obtained by another set of air filter and a pipeline. Namely, the air compressor of the fuel cell engine, the air source of the brake air compressor and the air filter air inlet pipeline are mutually independent.
In the related technology, the air compressor and the brake air compressor of the fuel cell engine on the fuel cell automobile adopt mutually independent air sources and air filter air inlet pipelines, two air filters and two sets of air inlet pipelines need to be arranged on the whole automobile, the two sets of mutually independent air inlet systems need more arrangement space, the overall cost is higher, and the maintenance points are increased. In addition, the air intake system of the brake air compressor often directly opens an air inlet on the air filter to communicate with the outside atmosphere, resulting in the outside air directly entering the air filter. The difficulty that the air filter obtains clean, dry air increases because of the restriction of the position of arranging of air cleaner, and then still can influence the life and the result of use of empty filter and air compressor machine, and moisture content in the compressed air also can increase, and then increases the burden of braking system desicator, influences whole car braking system's security even.
Disclosure of Invention
The air filter air inlet system comprises a first air inlet system and a second air inlet system, wherein the first air inlet system and the second air inlet system are arranged on the same side of the air filter air inlet system, and the first air inlet system and the second air inlet system are arranged on the same side of the air filter air inlet system.
In order to achieve the purposes, the technical scheme adopted by the application is as follows: an air filter intake system for a fuel cell vehicle, comprising:
the air inlet pipe assembly comprises an air inlet cylinder and an air inlet pipe which are communicated with each other, the air inlet direction of the air inlet cylinder is arranged obliquely upwards, and the area of an air inlet of the air inlet cylinder is larger than or equal to the cross section area of the air inlet pipe;
the air filter is connected with the air outlet of the air inlet pipe at the air inlet, and the air outlet of the air filter is respectively communicated with an engine air inlet pipeline and a brake air compressor air inlet pipeline;
check valves are arranged in the air inlet pipeline of the engine and the air inlet pipeline of the braking air compressor.
In some embodiments, the air intake tube is further provided with a mounting bracket, and the mounting bracket is used for mounting the air intake tube on a part of the side wall of the vehicle, which is higher than the upper surface of the vehicle frame.
In some embodiments, the mounting bracket comprises:
the L-shaped mounting plate comprises a first plate and a second plate which are perpendicular to each other, the first plate is fixed on the side wall of the air inlet cylinder through a fastener, and a first U-shaped opening is formed in one side, away from the air inlet cylinder, of the second plate;
the reinforcing plate is connected to the side face, far away from the first plate, of the second plate, a second U-shaped opening matched with the first U-shaped opening is formed in one side, far away from the air inlet cylinder, of the second plate, and the second U-shaped opening extends towards the direction far away from the second plate to form a U-shaped flanging.
In some embodiments, the air inlet direction of the air inlet cylinder is perpendicular to the air outlet direction.
In some embodiments, the intake manifold comprises:
the air inlet is arranged at one end of the square barrel body;
and a semi-cylindrical end plate connected to one end of the square cylinder part without the air inlet, wherein the lower end of the semi-cylindrical end plate extends to form a circular connecting end head for communicating with the air inlet of the air inlet pipe.
In some embodiments, a circle of rain cover is disposed at the air inlet of the air inlet cylinder, and a water retaining grid is further disposed at the air inlet.
In some embodiments, a drain outlet is provided below the air inlet of the air inlet cylinder, and a drain bag is detachably connected to the drain outlet.
In some embodiments, the air outlet of the air filter is connected with a common air outlet pipe, and the common air outlet pipe is provided with a first air outlet interface communicated with an engine air inlet pipeline and a second air outlet interface communicated with a brake air compressor air inlet pipeline;
the ratio of the area of the first air outlet interface to the area of the second air outlet interface is as follows: the ratio of the air consumption at peak fuel cell operation to the air consumption at peak brake air compressor operation.
In some embodiments, a blockage alarm for detecting the air outlet resistance of the common air outlet pipe is arranged in the common air outlet pipe.
In some embodiments, the first outlet port is provided with a flow sensor and a temperature sensor.
The beneficial effect that technical scheme that this application provided brought includes:
according to the air filter air inlet system of the fuel cell automobile, the air inlet introducing pipe assembly comprises an air inlet cylinder and an air inlet pipe which are communicated with each other, the air inlet direction of the air inlet cylinder is arranged in an inclined upward mode, and the area of an air inlet of the air inlet cylinder is larger than or equal to the cross section area of the air inlet pipe; the air outlet of the air filter is respectively communicated with the air inlet pipeline of the engine and the air inlet pipeline of the brake air compressor, so that the fuel cell engine and the brake air compressor share one set of air source and the air filter, the space occupation can be saved, the cost of the whole vehicle is reduced, the air inlet quality can be comprehensively improved, and the maintenance frequency of a drier of a brake system is reduced; the check valves are arranged in the air inlet pipeline of the engine and the air inlet pipeline of the brake air compressor, so that air backflow can be effectively prevented, air can be prevented from being sucked from another air compressor when a single air compressor works, and the air sources are ensured to be all from the air filter.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an air filter intake system of a fuel cell vehicle according to an embodiment of the present application;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic structural view of an intake air inlet pipe assembly according to an embodiment of the present application;
fig. 4 is a schematic view showing the connection of the air cleaner in the embodiment of the present application.
Reference numerals:
1. an air inlet cylinder; 11. a square barrel part; 12. a semi-cylindrical end plate; 13. a circular connection end; 14. a rain cover; 15. a water retaining grid; 16. a drainage bag;
2. an inlet gas inlet pipe;
3. an air cleaner; 31. sharing an air outlet pipe; 311. a first air outlet interface; 312. a second air outlet interface; 313. a jam alarm; 314. a flow sensor; 315. a temperature sensor;
4. an engine intake line; 5. braking an air compressor air inlet pipeline; 6. braking the air compressor; 7. a one-way valve;
8. mounting a bracket; 81. an L-shaped mounting plate; 811. a first plate; 812. a second plate; 8121. a first U-shaped opening; 82. a reinforcing plate; 821. a second U-shaped opening; 822. u-shaped flanging;
9. a fuel cell engine.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment of the application provides an air filtering air inlet system of a fuel cell automobile, which is particularly suitable for an air inlet system of a fuel cell engine of the fuel cell automobile and an air inlet system of a vehicle brake air compressor, and can solve the problems that two sets of mutually independent air inlet systems in the correlation technique occupy large space and are high in cost, and the difficulty of air cleaning and drying is large.
As shown in fig. 1 and fig. 2, the fuel cell vehicle air filter intake system of the embodiment of the present application includes an intake air inlet pipe assembly, an air cleaner 3, an engine intake pipe 4, and a brake air compressor intake pipe 5.
The air inlet introducing pipe assembly comprises an air inlet cylinder 1 and an air inlet pipe 2 which are communicated with each other, and an air outlet of the air inlet cylinder 1 is communicated with an air inlet of the air inlet pipe 2. The air inlet direction of the air inlet cylinder 1 is obliquely arranged upwards, and an air inlet surface which is obliquely inclined upwards is formed, namely after the air inlet cylinder 1 is fixedly installed, the air inlet cylinder 1 is obliquely arranged downwards from an air outlet to an air inlet.
The area of the air inlet cylinder 1 is larger than or equal to the cross section area of the air inlet pipe 2.
The air inlet of the air filter 3 is connected with the air outlet of the air inlet pipe 2, the air outlet of the air filter 3 is respectively communicated with an engine air inlet pipeline 4 and a brake air compressor air inlet pipeline 5, air entering from the air inlet pipe assembly is filtered through the air filter 3, clean air meeting requirements is provided for a fuel cell engine 9 through the engine air inlet pipeline 4, and clean air meeting requirements is provided for a brake air compressor 6 through the brake air compressor air inlet pipeline 5.
The engine air inlet pipeline 4 and the brake air compressor air inlet pipeline 5 are internally provided with the check valves 7, so that the air flow in the engine air inlet pipeline 4 can only flow from the engine air inlet pipeline 4 to the fuel cell engine 9 through the check valves, and the air flow in the brake air compressor air inlet pipeline 5 can only flow from the brake air compressor air inlet pipeline 5 to the brake air compressor 6.
In the air filtering and air inlet system of the fuel cell automobile, the air inlet direction of the air inlet cylinder is obliquely arranged upwards, and the area of the air inlet cylinder is larger than or equal to the cross section area of the air inlet pipe; the air outlet of the air filter is respectively communicated with the air inlet pipeline of the engine and the air inlet pipeline of the brake air compressor, so that the fuel cell engine and the brake air compressor share one set of air source and the air filter, the space occupation can be saved, the cost of the whole vehicle is reduced, the air inlet quality can be comprehensively improved, and the maintenance frequency of a drier of a brake system is reduced; the check valves are arranged in the air inlet pipeline of the engine and the air inlet pipeline of the braking air compressor, so that air backflow can be effectively prevented, air can be prevented from being sucked from another air compressor when a single air compressor works, and the air source is ensured to be completely from an air filter.
On the basis of the above embodiment, in the present embodiment, the above air intake barrel 1 is preferably installed at a position where the whole vehicle is favorable for fresh air to enter.
As shown in fig. 3, in this embodiment, the air intake tube 1 is further provided with a mounting bracket 8, the mounting bracket 8 is used for mounting the air intake tube 1 on a portion of the side wall of the vehicle, which is higher than the upper surface of the vehicle frame, and the air intake direction of the air intake tube 1 is set obliquely upward, that is, the portion of the side wall of the vehicle, which is higher than the upper surface of the vehicle frame, is a position where the air intake amount of the whole vehicle is large, and the air intake tube 1 is set obliquely downward from the air outlet to the air inlet.
Further, the mounting bracket 8 includes an L-shaped mounting plate 81 and a reinforcing plate 82.
The L-shaped mounting plate 81 includes a first plate 811 and a second plate 812 perpendicular to each other, the first plate 811 is fixedly connected to the sidewall of the intake barrel 1 by a fastener, and a first U-shaped opening 8121 is opened on a side of the second plate 812 away from the intake barrel 1.
Preferably, the first plate 811 and the second plate 812 are integrally formed. The fastening member is a fastening screw, and the L-shaped mounting plate 81 can be fixed to the intake cylinder 1 by the fastening screw.
The reinforcing plate 82 is connected to the side surface of the second plate 812 far away from the first plate 811, a second U-shaped opening 821 matched with the first U-shaped opening 8121 is formed in one side of the reinforcing plate 82 far away from the air inlet cylinder 1, the second U-shaped opening 821 extends in the direction far away from the second plate 812 to form a U-shaped flange 822, and the first U-shaped opening 8121, the second U-shaped opening 821 and the U-shaped flange 822 form a mounting opening for connecting the mounting bracket 8 with a side wall of a vehicle.
Further, the second plate 812 and the reinforcing plate 82 are correspondingly provided with mounting holes so as to be fastened and connected with the side wall of the vehicle.
In this embodiment, the reinforcing plate 82 is located on the side of the second plate 812 away from the air inlet of the air intake barrel 1, and in this case, the first plate 811 is located on the side of the second plate 812 close to the air inlet of the air intake barrel 1.
In other embodiments, the reinforcing plate 82 is located on the side of the second plate 812 close to the air inlet of the air intake barrel 1, and in this case, the first plate 811 is located on the side of the second plate 812 away from the air inlet of the air intake barrel 1.
In other embodiments, the mounting bracket 8 may optionally include three mounting plates, namely a first mounting plate, a second mounting plate and a third mounting plate. Wherein, first mounting panel passes through fastening screw fixed connection on the lateral wall of above-mentioned air inlet cylinder 1, and first mounting panel and second mounting panel mutually perpendicular are connected, and the middle part in first mounting panel is connected to the second mounting panel. A first U-shaped opening is formed in one side, away from the first mounting plate, of the second mounting plate.
Wherein, the third mounting panel is connected in the one side that the air inlet of section of thick bamboo 1 was kept away from to above-mentioned second mounting panel, and the third installation is kept away from one side of section of thick bamboo 1 and is offered the second U type opening with first U type opening looks adaptation, and above-mentioned second U type opening part extends towards the direction of keeping away from the second mounting panel and is formed with the U-shaped turn-ups, and above-mentioned first U type opening, second U type opening and U-shaped turn-ups form the installing port that installing support 8 and vehicle side wall are connected.
In the above embodiment, it is preferable that the air inlet direction of the air inlet cylinder 1 is perpendicular to the air outlet direction.
In other embodiments, the air inlet direction and the air outlet direction of the air inlet cylinder 1 may not be perpendicular, and it is only necessary to ensure that the air inlet direction of the air inlet cylinder 1 is inclined and arranged upward after the air inlet cylinder 1 is fixedly installed.
Alternatively, with the sum of the air consumption at the time of peak power operation of the fuel cell and the air consumption at the time of peak power operation of the brake air compressor as the total air flow rate, based on a preset air flow rate, the minimum cross-sectional area required for the intake air inlet pipe 2 can be calculated, that is:
S＝L/V
where S is the minimum cross-sectional area, L is the total air flow, and V is the air flow rate. In the present embodiment, the air flow velocity V is less than or equal to 30 m/s. Alternatively, the air flow velocity V of the present embodiment is 30 m/s.
Therefore, both the intake opening area of the intake cylinder 1 and the cross-sectional area of the intake air intake pipe 2 are larger than or equal to the minimum cross-sectional area S.
Further, the air intake resistance in the air filter-based air intake system is determined by the total air flow and the structure of the air filter-based air intake system, and is the sum of the air intake resistances of all the components. Therefore, after the minimum cross-sectional area is determined, simulation can be performed based on the preset intake resistance value of the fuel cell engine and the preset intake resistance value of the brake air compressor so as to simultaneously satisfy the following conditions:
1. under the condition that the air inlet flow of the brake air compressor is at a peak value (the air consumption L1 when the brake air compressor works at the peak power), the system resistance formed by the air inlet pipe 2, the air filter 3 and the brake air compressor air inlet pipeline 5 is less than or equal to the preset value of the air inlet resistance of the brake air compressor;
2. when the air intake flow of the fuel cell engine is at a peak value (the air consumption L2 when the fuel cell operates at peak power), the system resistance formed by the air intake inlet pipe 2, the air filter 3 and the engine air intake pipeline 4 is less than or equal to the preset value of the air intake resistance of the fuel cell engine;
3. under the condition that the air inlet flow of the braking air compressor and the air inlet flow of the fuel cell engine are both at peak values, the air inlet resistance of the whole air filter air inlet system is smaller than or equal to: the sum of the product of the preset value of the air inlet resistance of the fuel cell engine and the ratio of the air inlet flow of the engine and the product of the preset value of the air inlet resistance of the brake air compressor and the ratio of the air inlet flow of the brake air compressor.
Wherein, the air inlet flow of the engine is in proportion as follows: the ratio of the air consumption L2 at peak fuel cell power operation to the total air flow L; the air inlet flow ratio of the brake air compressor is as follows: the ratio of the air consumption L1 when the brake air compressor is in peak power operation to the total air flow L, namely the sum of the ratio of the engine intake air flow to the ratio of the brake air compressor intake air flow is 1.
And finally, taking the minimum pipe diameter of the air inlet pipe 2 at the end of the simulation as a final design value of the pipe diameter, and further obtaining the cross sectional area of the air inlet pipe 2.
By providing the intake sleeve 1 and the intake pipe 2 with sufficient flow areas, the superimposed intake requirements of the fuel cell engine 9 and the brake air compressor 6 can be met.
In this embodiment, the intake cylinder 1 includes a square cylinder 11 and a semi-cylindrical end plate 12, the square cylinder 11 has a structure with two open ends, one end of the square cylinder 11 is used as an intake port, and the other end of the square cylinder 11 is connected to the semi-cylindrical end plate 12, that is, the semi-cylindrical end plate 12 is connected to the end of the square cylinder 11 not provided with the intake port, and the diameter of the semi-cylindrical end plate 12 matches the width of the square cylinder 11.
In this embodiment, a closed plate is disposed at the upper end of the semi-cylindrical end plate 12, a circular connection end 13 for air outlet is formed at the lower end of the semi-cylindrical end plate 12 in an extending manner, the air inlet cylinder 1 is communicated with the air inlet of the air inlet pipe 2 through the circular connection end 13, and the circular connection end 13 is fastened to the air inlet of the air inlet pipe 2 through a clamp, so as to ensure that air enters from the air inlet of the square cylinder part 11 and flows into the air inlet pipe 2 through the circular connection end 13 below the semi-cylindrical end plate 12.
Preferably, the square cylindrical body portion 11 and the semi-cylindrical end plate 12 are formed as an integral structure.
Optionally, the air inlet tube 1 may also be a circular tube, an air inlet is formed in one end of the circular tube, an opening is formed in a lower side wall of the other end of the circular tube, and a circular connection end used for air outlet is formed at the opening in a downward extending manner, so that the air inlet is communicated with the air inlet tube 2 through the circular connection end.
In other embodiments, optionally, the air inlet cylinder 1 is a square cylinder, an air inlet is opened at one end of the square cylinder, and a circular air outlet is formed on a lower side wall of the other end of the square cylinder. The end face of the square barrel body provided with the air inlet is a face formed by width and height, the end face of the square barrel body provided with the air outlet is a face formed by length and width, and the width of the square barrel body is larger than the diameter of the air inlet pipe 2, so that the air outlet of the air inlet barrel 1 is formed in the bottom surface of the square barrel body.
On the basis of the above embodiment, a circle of rain cover 14 is arranged at the air inlet of the air inlet cylinder 1, and a water retaining grid 15 is further arranged at the air inlet of the air inlet cylinder 1.
Through setting up rain-proof cover 14 and manger plate grid 15 at the air inlet of section of thick bamboo 1 of admitting air, not only reducible rainwater gets into air cleaner 3 in, still can effectively reduce the impurity in air, rain, the snow and mix in air cleaner 3 to alleviate air cleaner 3's work burden.
Alternatively, the water blocking grill 15 is a steel grill, and the water blocking grill 15 may be formed by welding flat steel and twisted steel in korean.
Preferably, a drain opening is provided below the air inlet of the air inlet cylinder 1, and a drain bag 16 is detachably connected to the drain opening.
In this embodiment, the drain port is provided on the lower side wall of the square cylindrical body 11 near the air inlet. The air inlet cylinder 1 is arranged on the part, higher than the upper surface of the frame, of the side wall of the vehicle through the mounting bracket 8, the air inlet direction of the air inlet cylinder 1 is arranged in an inclined and upward mode, the air inlet of the square cylinder part 11 can be ensured to be the position with larger air inflow of the whole vehicle, the water flow can be further accelerated to enter the drainage bag 16 through the water outlet, and the air inlet quality is improved.
In addition to the above embodiments, in the present embodiment, the air cleaner is mainly applied to the fields of pneumatic machines, internal combustion machines, and the like, and when a piston machine (an internal combustion engine, a reciprocating compressor, and the like) operates, if impurities such as dust are contained in the sucked air, the wear of parts is easily increased. The air filter is used for removing particulate impurities from the air to provide clean air for the equipment, and the equipment is prevented from sucking the air with impurity particles in operation to increase the probability of abrasion and damage. Therefore, an air cleaner is indispensable in the air-filtered intake system.
The main components of an air cleaner are a filter element, which is the main filtering part, which undertakes the filtering of the gas, and a housing, which is the external structure that provides the necessary protection for the filter element. It is conceivable that the air cleaner is required to be capable of performing high-efficiency air cleaning operation, not to increase excessive resistance to air flow, and to be capable of continuous operation for a long period of time.
In this embodiment, the air filter inlet of the air filter 3 is communicated with the air outlet of the air inlet pipe 2, and the air filter inlet of the air filter 3 is connected to a common air outlet pipe 31. The air cleaner 3 is also provided with a dust exhaust bag.
As shown in fig. 4, the common outlet pipe 31 is further provided with a first outlet port 311 and a second outlet port 312. The first air outlet interface 311 is communicated with an air inlet of the engine air inlet pipeline 4, and an air outlet of the engine air inlet pipeline 4 is connected with an air inlet of the fuel cell engine 9; the second air outlet port 312 is communicated with an air inlet of the brake air compressor air inlet pipeline 5, and an air outlet of the brake air compressor air inlet pipeline 5 is connected with an air inlet of the brake air compressor 6.
In this embodiment, the air outlet of the air cleaner 3 is connected to the common air outlet pipe 31, and the filtered air is respectively transmitted to the air compressor of the engine through the engine air inlet pipeline 4 and transmitted to the brake air compressor 6 through the brake air compressor air inlet pipeline 5.
Further, check valves 7 in the engine air inlet pipeline 4 and the brake air compressor air inlet pipeline 5 are electric check valves, air backflow can be prevented through the check valves 7, and mutual influence between the engine air inlet pipeline 4 and the brake air compressor air inlet pipeline 5 is avoided.
Through the one-way valve in the engine air inlet pipeline 4, the air output by the air filter 3 can be ensured to flow to the fuel cell engine 9 only from the engine air inlet pipeline 4 so as to be used by an air compressor of the fuel cell engine 9; through the one-way valve in the brake air compressor inlet line 5, it can be ensured that the air output by the air filter 3 can only flow from the brake air compressor inlet line 5 to the brake air compressor 6 for use by the brake air compressor 6.
Optionally, at least one first connection assembly may be disposed on the engine intake pipe 4, and the engine intake pipe 4 may be fixed to the fuel cell engine 9 by the first connection assembly, so as to effectively improve rigidity of the air filtration intake system, reduce risk of failure of parts due to vibration, and ensure effective operation of the air filtration intake system.
Wherein, above-mentioned first connecting assembly can include first clamp and first mounting bracket, and above-mentioned first clamp cover is established on engine air inlet pipeline 4, and the one end fixed connection of above-mentioned first mounting bracket is on first clamp, and the other end fixed mounting of above-mentioned first mounting bracket is on fuel cell engine 9.
Optionally, at least one second connecting assembly can be arranged on the brake air compressor inlet pipeline 5, and the brake air compressor inlet pipeline 5 can be fixed on the brake air compressor 6 through the second connecting assembly, so that the rigidity of the air filtering and inlet system can be effectively improved, the part failure risk caused by vibration is reduced, and the effective operation of the air filtering and inlet system is ensured.
Wherein, above-mentioned second coupling assembling can include second clamp and second mounting bracket, and above-mentioned second clamp cover is established on braking air compressor machine inlet line 5, and the one end fixed connection of above-mentioned second mounting bracket is on the second clamp, and the other end fixed mounting of above-mentioned second mounting bracket is on braking air compressor machine 6.
Preferably, the ratio of the area of the first outlet port 311 to the area of the second outlet port 312 is: the ratio of the air consumption at peak fuel cell operation to the air consumption at peak brake air compressor 6 operation.
Further, a blockage alarm 313 is arranged in the common air outlet pipe 31. The detection of the air discharge resistance thereof can be performed by the above-described blockage alarm 313.
In this embodiment, when the air outlet resistance value of the blockage alarm 313 in the common air outlet pipe 31 reaches the maximum allowable resistance limit value, the user can be prompted to maintain or replace the filter element of the air cleaner 3 in time.
In this embodiment, the maximum allowable resistance limit is a preset intake resistance threshold. Alternatively, the intake resistance threshold may be set according to the model of the actual vehicle and the air cleaner 3.
In this embodiment, the first outlet interface 311 is provided with a flow sensor 314. The flow sensor 314 is an air flow sensor, and air flow data from the engine air intake line 4, i.e., air flow data delivered to the fuel cell engine 9, can be collected by the flow sensor 314 for provision to the fuel cell engine controller.
Further, the first outlet interface 311 may further include a temperature sensor 315. The temperature of the air in the engine inlet line 4, i.e. the temperature of the air delivered to the fuel cell engine, can be collected by the temperature sensor 315 for supply to the fuel cell engine controller.
The fuel cell automobile air filtering and air inlet system is suitable for medium and heavy automobiles equipped with fuel cell engines, air brakes and air facilities with air bag seats, air suspensions and the like, the fuel cell engines and the brake air compressors share one set of air inlet introducing pipe assembly and an air filter, and the air inlet introducing pipe assembly is arranged at the position where the whole automobile has good air inlet, so that the air inlet introducing pipe assembly has good water retaining, water collecting and water removing effects; in addition, the check valves are arranged in the air inlet pipeline of the engine and the air inlet pipeline of the brake air compressor, so that air can be effectively prevented from being sucked from another air compressor when a single air compressor works, the fact that all air sources come from an air filter is guaranteed, and mutual influence between the air inlet pipeline of the engine and the air inlet pipeline of the brake air compressor is avoided.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present application and are presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An air filter intake system for a fuel cell vehicle, comprising:
the air inlet introducing pipe assembly comprises an air inlet cylinder (1) and an air inlet pipe (2) which are communicated with each other, the air inlet direction of the air inlet cylinder (1) is arranged obliquely upwards, and the area of an air inlet of the air inlet cylinder (1) is larger than or equal to the cross section area of the air inlet pipe (2);
the air inlet of the air filter (3) is connected with the air outlet of the air inlet pipe (2), and the air outlet of the air filter is respectively communicated with an engine air inlet pipeline (4) and a brake air compressor air inlet pipeline (5);
and check valves (7) are arranged in the engine air inlet pipeline (4) and the brake air compressor air inlet pipeline (5).
2. The fuel cell vehicle air filter intake system of claim 1, wherein: the air inlet cylinder (1) is further provided with a mounting bracket (8), and the mounting bracket (8) is used for mounting the air inlet cylinder (1) on the part of the side wall of the vehicle, which is higher than the upper surface of the frame.
3. The fuel cell vehicle air filter intake system according to claim 2, wherein the mounting bracket (8) includes:
the L-shaped mounting plate (81) comprises a first plate (811) and a second plate (812) which are perpendicular to each other, the first plate (811) is fixed on the side wall of the air inlet cylinder (1) through a fastener, and a first U-shaped opening (8121) is formed in one side, away from the air inlet cylinder (1), of the second plate (812);
the reinforcing plate (82) is connected to the side face, far away from the first plate (811), of the second plate (812), one side, far away from the air inlet cylinder (1), of the reinforcing plate is provided with a second U-shaped opening (821) matched with the first U-shaped opening (8121), and the second U-shaped opening (821) extends towards the direction far away from the second plate (812) to form a U-shaped flanging (822).
4. The fuel cell vehicle air filter intake system of claim 1, wherein: the air inlet direction of the air inlet cylinder (1) is vertical to the air outlet direction.
5. The fuel cell vehicle air filter intake system according to claim 1, wherein the intake cylinder (1) includes:
a square barrel part (11) with two open ends, one end of which is an air inlet;
and the semi-cylindrical end plate (12) is connected to one end, which is not provided with an air inlet, of the square barrel part (11), and a circular connecting end head (13) is formed by extending the lower end of the semi-cylindrical end plate (12) and is used for being communicated with the air inlet of the air inlet pipe (2).
6. The fuel cell vehicle air filter intake system of claim 1, wherein: a circle of rain cover (14) is arranged at the air inlet of the air inlet barrel (1), and a water retaining grid (15) is further arranged at the air inlet.
7. The fuel cell vehicle air filter intake system according to claim 6, wherein: a water outlet is arranged below the air inlet of the air inlet cylinder (1) and close to the air inlet, and a water discharge bag (16) is detachably connected to the water outlet.
8. The fuel cell vehicle air filter intake system of claim 1, wherein: an air outlet of the air filter (3) is connected with a common air outlet pipe (31), and the common air outlet pipe (31) is provided with a first air outlet interface (311) communicated with an engine air inlet pipeline (4) and a second air outlet interface (312) communicated with a brake air compressor air inlet pipeline (5);
the ratio of the area of the first air outlet interface (311) to the area of the second air outlet interface (312) is as follows: the ratio of the air consumption at peak power operation of the fuel cell to the air consumption at peak power operation of the brake air compressor (6).
9. The fuel cell vehicle air filter intake system according to claim 8, wherein: and a blockage alarm (313) for detecting the air outlet resistance of the common air outlet pipe (31) is arranged in the common air outlet pipe.
10. The fuel cell vehicle air filter intake system according to claim 8, wherein: the first air outlet interface (311) is provided with a flow sensor (314) and a temperature sensor (315).
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| CN202111279954.7A CN114030350B (en) | 2021-10-28 | 2021-10-28 | Air filtering and air inlet system of fuel cell automobile |
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| CN202111279954.7A CN114030350B (en) | 2021-10-28 | 2021-10-28 | Air filtering and air inlet system of fuel cell automobile |
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| CN114030350B CN114030350B (en) | 2023-07-11 |
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Cited By (1)
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