CN114725435A - Fuel cell air supply system and control method and control device thereof - Google Patents
Fuel cell air supply system and control method and control device thereof Download PDFInfo
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- CN114725435A CN114725435A CN202210427929.7A CN202210427929A CN114725435A CN 114725435 A CN114725435 A CN 114725435A CN 202210427929 A CN202210427929 A CN 202210427929A CN 114725435 A CN114725435 A CN 114725435A
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- air supply
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- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
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- 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
- H01M8/04104—Regulation of differential pressures
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- 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
- H01M8/04111—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
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- 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
- H01M8/04395—Pressure; Ambient pressure; Flow of cathode reactants at the inlet or inside the fuel cell
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- 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
- H01M8/04425—Pressure; Ambient pressure; Flow at auxiliary devices, e.g. reformers, compressors, burners
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- 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04753—Pressure; Flow of fuel cell reactants
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- 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04776—Pressure; Flow at auxiliary devices, e.g. reformer, compressor, burner
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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
Abstract
The invention discloses a fuel cell air supply system and a control method and a control device thereof. Wherein the fuel cell air supply system comprises: a housing having a receiving cavity, the housing having a first inlet end and a first outlet end; the air compressor is arranged in the accommodating cavity; the filtering and sound absorbing part is arranged along the peripheral surface of the shell and is provided with a second inlet end and a second outlet end; the second inlet end is communicated with the first inlet end, the second outlet end is communicated with the air inlet of the air compressor, and the air outlet of the air compressor is communicated with the first outlet end. The fuel cell air supply system is simple in structure, the filtering and sound absorbing part is used for replacing two parts of the original air filter and the original air compressor sound absorbing device, the pipeline design is simpler, the structure is more compact, the number of parts is reduced, and the technical problem that the integration level of the existing fuel cell air supply system is poor is solved.
Description
Technical Field
The invention relates to the technical field of fuel cell air supply equipment, in particular to a fuel cell air supply system and a control method and a control device thereof.
Background
Because the reaction of the fuel cell needs to be carried out under specific conditions, in order to improve the reaction efficiency, the air entering the cathode needs to be pressurized, and the reaction is generally realized by a special air compressor for the fuel cell, and the maximum rotating speed of the special air compressor for the fuel cell can reach more than one hundred thousand turns. Such an air compressor is often accompanied by relatively loud noise. In order to ensure the driving comfort, the air compressor is usually required to be subjected to special noise reduction treatment, a thicker sound-absorbing material is generally adopted for wrapping, and after the sound-absorbing material is used for a long time, the performance is degraded and the sound-absorbing material needs to be replaced.
On the other hand, in order to prevent the catalyst of the fuel cell from being poisoned by the chemical impurities such as carbon monoxide and sulfide in the air and to prevent other key components of the system from being damaged by the physical impurities such as particulate matters in the air, the air entering the air supply system needs to be filtered, and is often realized by an air filter, so the air filter needs to have both physical and chemical filtering functions.
In order to meet the requirements of the air supply system, a special noise reduction scheme with an air filter and an air compressor is required. In the prior art, an air supply system is often provided with an air filter with a large volume and a sound absorption device of an air compressor with a large volume, so that the fuel cell engine needs to be provided with two large parts, namely the air filter and the sound absorption device of the air compressor, and the fuel cell engine has a large volume and poor system integration level.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a fuel cell air supply system, a control method and a control device thereof, which at least solve the technical problem of poor integration of the existing fuel cell air supply system.
According to an aspect of an embodiment of the present invention, there is provided a fuel cell air supply system including: a housing having a receiving cavity, the housing having a first inlet end and a first outlet end; the air compressor is arranged in the accommodating cavity; the filtering and sound absorbing part is arranged along the peripheral surface of the shell and is provided with a second inlet end and a second outlet end; the second inlet end is communicated with the first inlet end, the second outlet end is communicated with the air inlet of the air compressor, and the air outlet of the air compressor is communicated with the first outlet end.
Furthermore, the filtering and sound absorbing part is of an annular structure, and the inner circle of the filtering and sound absorbing part is attached to the outer surface of the shell.
Further, the housing includes: the air inlet structure comprises a shell body, wherein a blocking piece mechanism is arranged at one end of the shell body and is positioned between a second inlet end and a first inlet end, the blocking piece mechanism is rotatably arranged along the circumferential direction of the shell body, and the blocking piece mechanism is used for adjusting the flow area of the second inlet end.
Further, at least a portion of the flap mechanism has a plurality of deployed positions including a maximum angular deployed position and a minimum angular deployed position, and a portion of the second inlet end is in communication with the first inlet end when the flap mechanism is in the maximum angular deployed position.
Further, the shutter mechanism includes: the separation blade unit, the separation blade unit is a plurality of, and a plurality of separation blade units set up along the circumference interval of casing body, form between the adjacent separation blade unit and dodge the passageway, and the part that is located dodge passageway one side filters sound absorbing part and forms first entrance point, and at least one separation blade unit in a plurality of separation blade units sets up along the circumference of casing body is movably.
According to another aspect of the embodiments of the present invention, there is also provided a control method of a fuel cell air supply system, including: collecting the rotating speed information of an air compressor; determining a pressure value of the air compressor according to the rotating speed information; and under the condition that the pressure value is determined to be larger than the required pressure value of the fuel cell air supply system, generating a control strategy set, wherein the control strategy set is used for controlling the baffle unit of the baffle mechanism to rotate by a preset angle.
Optionally, in case the pressure value is greater than a demand pressure value of the fuel cell air supply system, generating a set of control strategies comprising: periodically collecting air quality parameters sensed by an air quality sensor; judging whether the air quality parameters collected each time meet a first preset condition; under the condition that the air quality parameter is determined to meet the first preset condition, determining the concentration of harmful substances such as impurity particles and the like contained in the air based on the air quality parameter; judging whether the concentration meets a second preset condition or not; if so, generating a first target control strategy in the control strategy set, wherein the first target control strategy is used for controlling the expansion angle of the baffle unit of the baffle mechanism to be increased so as to reduce the flow area; and if not, generating a second target control strategy in the control strategy set, wherein the second target control strategy is used for controlling the expansion angle of the baffle unit of the baffle mechanism to be reduced so as to increase the flow area.
According to another aspect of the embodiments of the present invention, there is also provided a control device of a fuel cell air supply system, including: the acquisition unit is used for acquiring the rotating speed information of the air compressor; the determining unit is used for determining the pressure value of the air compressor according to the rotating speed information; and the generating unit is used for generating a control strategy set under the condition that the determined pressure value is greater than the required pressure value of the fuel cell air supply system, and the control strategy set is used for controlling the baffle unit of the baffle mechanism to rotate by a preset angle.
According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein the computer program is configured to control execution of the control method described above when executed.
According to another aspect of the embodiments of the present invention, there is also provided a processor for executing a program, wherein the processor executes the control method described above by a computer program.
In the embodiment of the invention, the outside air enters the filtering and sound absorbing part through the first inlet end and the second inlet end, is filtered and subjected to noise reduction through the filtering and sound absorbing part, then is discharged from the second outlet end to the filtering and sound absorbing part, enters the air compressor through the air inlet of the air compressor, is pressurized through the air compressor, is discharged to the first outlet end of the shell through the air outlet of the air compressor, and then is discharged to the fuel cell engine from the first outlet end, so that the air cleanness and the impurity free performance of the fuel cell air supply system are ensured, and meanwhile, the technical effect of reducing the noise of the fuel cell air supply system is realized. The fuel cell air supply system is simple in structure, the filtering and sound absorbing part is used for replacing two parts of the original air filter and the original air compressor sound absorbing device, the pipeline design is simpler, the structure is more compact, the number of parts is reduced, and the technical problem that the integration level of the existing fuel cell air supply system is poor is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic configuration diagram of a first embodiment of a fuel cell air supply system according to the present invention;
fig. 2 is a schematic structural view of a second embodiment of a fuel cell air supply system according to the present invention;
fig. 3 is a schematic flow chart of a first embodiment of a control method of a fuel cell air supply system according to the invention;
fig. 4 is a schematic flow chart of a second embodiment of a control method of the fuel cell air supply system according to the invention;
FIG. 5 is a graph of air impurity concentration versus deployment angle of a flap unit of the flap mechanism in accordance with the present invention;
FIG. 6 is a graph of a predetermined angle versus air impurity concentration according to the present invention;
fig. 7 is a block diagram showing the construction of a control device of an alternative fuel cell air supply system according to the present invention.
10. A housing; 100. a housing body; 11. an accommodating chamber; 12. a first inlet end; 13. a first outlet end; 14. a catch mechanism; 141. a stopper unit;
20. an air compressor;
30. a filtering and sound absorbing part; 31. a second inlet end; 32. a second outlet end;
40. an air quality sensor.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In accordance with an embodiment of the present invention, there is provided a method embodiment of a control method for a synchronizer lubrication system, it should be noted that the steps illustrated in the flowchart of the accompanying drawings may be executed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be executed in an order different than that illustrated herein.
Referring to fig. 1-2, according to an embodiment of the present application, a fuel cell air supply system is provided.
Specifically, as shown in fig. 1, the fuel cell air supply system includes: a casing 10, an air compressor 20 and a filtering sound absorption part 30. The casing 10 has a housing chamber 11, the casing 10 has a first inlet end 12 and a first outlet end 13, the air compressor 20 is disposed in the housing chamber 11, the filtering sound-absorbing portion 30 is disposed along the outer peripheral surface of the casing 10, and the filtering sound-absorbing portion 30 has a second inlet end 31 and a second outlet end 32. The second inlet end 31 is communicated with the first inlet end 12, the second outlet end 32 is communicated with the air inlet of the air compressor 20, and the air outlet of the air compressor 20 is communicated with the first outlet end 13.
By applying the technical scheme of the embodiment, the outside air enters the filtering and sound absorbing part 30 through the first inlet end 12 and the second inlet end 31, is filtered by the filtering and sound absorbing part 30 and is subjected to noise reduction, then the filtering and sound absorbing part 30 is discharged from the second outlet end 32, the outside air enters the air compressor 20 through the air inlet of the air compressor 20, the outside air is pressurized by the air compressor 20, and then is discharged to the first outlet end 13 of the shell 10 from the air outlet of the air compressor 20 and is discharged to the fuel cell engine from the first outlet end 13, so that the air cleanness and the impurity of the fuel cell air supply system are guaranteed, and meanwhile, the technical effect of reducing the noise of the fuel cell air supply system is also realized. The fuel cell air supply system is simple in structure, the filtering and sound absorbing portion 30 is used for replacing two parts of an original air filter and an original air compressor sound absorbing device, the pipeline design is simpler, the structure is more compact, the number of parts is reduced, and the technical problem that the integration level of the existing fuel cell air supply system is poor is solved.
As shown in fig. 2, the filtering sound absorbing part 30 has a ring structure, and the inner circle of the filtering sound absorbing part 30 is disposed to be attached to the outer surface of the casing 10. The housing 10 serves to fix the filter sound absorbing member 30.
The filtering sound absorbing part 30 includes at least one of activated carbon and a metal organic skeleton compound. In this embodiment, the metal-organic framework compound is abbreviated as MOFs, which is a crystalline porous material with a periodic network structure formed by connecting an inorganic metal center (metal ion or metal cluster) and a bridged organic ligand through self-assembly. MOFs are an organic-inorganic hybrid material, also called coordination polymer, which is different from inorganic porous materials and common organic complexes, and has both the rigidity of inorganic materials and the flexibility of organic materials, etc. The arrangement makes the filtering and sound-absorbing part 30 have a physical and chemical filtering function, and can remove physical and chemical impurities in the outside air at the same time.
The housing 10 includes: the flow-through structure comprises a housing body 100, wherein a baffle mechanism 14 is arranged at one end of the housing body 100, the baffle mechanism 14 is located between a second inlet end 31 and a first inlet end 12, the baffle mechanism 14 is rotatably arranged along the circumferential direction of the housing body 100, and the baffle mechanism 14 is used for adjusting the flow area of the second inlet end 31. Specifically, the part of the filtering and sound absorbing portion 30 blocked by the shutter mechanism 14 is blocked so that the part of the filtering and sound absorbing portion 30 blocked does not participate in the filtering of the outside air, and the outside air does not enter the filtering and sound absorbing portion 30 blocked by the shutter mechanism 14, but the filtering and sound absorbing portion 30 blocked by the shutter mechanism 14 can still reduce the noise of the air compressor 20. This can effectively reduce the loss of the filtering sound absorbing part 30 and improve the life of the filtering sound absorbing part 30.
At least a portion of the flap mechanism 14 has a plurality of deployed positions including a maximum angular deployed position and a minimum angular deployed position, and a portion of the second inlet end 31 communicates with the first inlet end 12 when the flap mechanism 14 is in the maximum angular deployed position. This ensures that the air is filtered and that the air entering the fuel cell engine is clean.
The flow rate of the flap mechanism 14 at the maximum angle deployment position is Q1The flow rate of the flap mechanism 14 at the minimum angle deployment position is Q2Wherein Q is1＜Q2. In the present embodiment, when the baffle mechanism 14 is located at the maximum angle deployment position, the area of the filtering and sound absorbing part 30 blocked by the baffle mechanism 14 is the largest, and only a small part of the filtering and sound absorbing part 30 participates in the air filtration, and the flow rate Q at this time is the excessive flow rate Q1And minimum. When the baffle mechanism 14 is located at the minimum angle unfolding position, the area of the filtering and sound-absorbing part 30 blocked by the baffle mechanism 14 is the largest, almost all the filtering and sound-absorbing parts 30 participate in air filtration, and the overflowing quantity Q at the moment2And maximum.
The shutter mechanism 14 includes: the baffle units 141 are multiple, the multiple baffle units 141 are arranged at intervals along the circumferential direction of the housing body 100, an avoidance channel is formed between the adjacent baffle units 141, the part of the filtering and sound absorbing part 30 located on one side of the avoidance channel forms the first inlet end 12, and at least one baffle unit 141 of the multiple baffle units 141 is movably arranged along the circumferential direction of the housing body 100. This arrangement improves the reliability of the damper mechanism 14 in adjusting the flow area at the second inlet end 31 of the filtering sound absorbing portion 30.
Some of the flap units 141 of the plurality of flap units 141 are fixedly disposed with the housing body 100, and the other flap unit 141 is movably disposed with the housing body 100, wherein the flap unit 141 movably disposed with the housing body 100 is slidably disposed along the circumferential direction of the housing body 100. This arrangement further improves the reliability of the flap mechanism 14 in adjusting the flow area at the second inlet end 31 of the filtering sound-absorbing portion 30.
According to another specific embodiment of the present application, there is also provided a control method of a fuel cell air supply system, as shown in fig. 3, which is a schematic flowchart of a first embodiment of the control method of the fuel cell air supply system according to the present application, the method including the steps of:
s102, collecting rotating speed information of the air compressor;
s104, determining a pressure value of the air compressor according to the rotating speed information;
and S106, generating a control strategy set under the condition that the pressure value is determined to be larger than the required pressure value of the fuel cell air supply system, wherein the control strategy set is used for controlling the baffle unit of the baffle mechanism to rotate by a preset angle.
In this embodiment, through the rotational speed information of gathering the air compressor machine, confirm the pressure value of air compressor machine according to rotational speed information, under the condition that the definite pressure value is greater than the demand pressure value of fuel air supply system, generate the control strategy set, the control strategy set is used for controlling the separation blade unit of separation blade mechanism and rotates preset angle, thereby can control the area that filters the sound absorption portion and is blocked, and then adjust the area of overflowing, the part that filters the sound absorption portion and is blocked does not then participate in the filtration of air, the loss that filters the sound absorption portion has been reduced, thereby can improve fuel cell air supply system's life.
As shown in fig. 4, which is a schematic flow chart of a second embodiment of the control method of the fuel cell air supply system according to the present application, in the case where the pressure value is greater than the required pressure value of the fuel cell air supply system, that is, in the case where the system pressure requirement in fig. 4 is not high, the air quality is detected by the air quality sensor at this time. Under the condition that the pressure requirement of the fuel cell air supply system is high, when the pressure requirement of the fuel cell air supply system cannot be met even when the rotating speed is increased through the air compressor, the unfolding angle position of the control baffle mechanism is reduced, so that the pressure drop of the system passing through the filtering and sound absorbing part 30 is reduced, and the pressure of the supply system is increased.
Optionally, in case the pressure value is greater than a demand pressure value of the fuel cell air supply system, generating a set of control strategies comprising: an air quality parameter sensed by an air quality sensor is periodically collected, wherein the air quality sensor 40 is disposed at a first inlet end of the fuel cell air system. Judging whether the air quality parameters collected each time meet a first preset condition, determining the concentration of harmful substances such as impurity particles contained in the air based on the air quality parameters under the condition that the air quality parameters meet the first preset condition, judging whether the concentration meets a second preset condition, and if so, generating a first target strategy in a control strategy set, wherein the first target control strategy is used for controlling the expansion angle position of the baffle mechanism to be enlarged so as to reduce the flow area. And if not, generating a second target strategy in the control strategy set, wherein the second target control strategy is used for controlling the expansion angle position of the baffle mechanism to be reduced so as to increase the flow area. As shown in fig. 5, which is a graph of the relationship between the air impurity concentration and the deployment angle of the flap unit of the flap mechanism according to the present application, when the deployment angle of the flap mechanism is larger, the size of the flap in fig. 5 is larger. In this embodiment, the first preset condition is that the air quality parameter changes, and the second preset condition is that the impurity concentration in the air is high, as can be seen from fig. 5, the higher the impurity concentration in the air is, the smaller the size of the blocking piece is, that is, the smaller the deployment angle of the blocking piece mechanism is. When the quality parameters of the collected air change every time, the expansion angle of the baffle unit of the baffle mechanism is controlled according to the concentration of harmful substances such as impurity particles contained in the air, so that the cleanliness of the air entering the fuel cell engine can be ensured, and the loss of the filtering and sound absorbing part can be reduced.
Optionally, as shown in fig. 4, the determining whether the air quality parameter acquired each time meets a first preset condition includes: and under the condition that the air quality parameter does not meet the first preset condition, generating a third target strategy in a control strategy set, wherein the third target control strategy is used for controlling the baffle mechanism to rotate by a preset angle M at intervals of T. Therefore, the uniform use of the filtering and sound absorbing part can be ensured, and the utilization rate of the filtering and sound absorbing part is improved. In the present embodiment, T may be set to 1 min. As shown in fig. 6, which is a graph showing a relationship between a preset angle M and an air impurity concentration, it can be known from fig. 6 that, as the impurity concentration in the air rises, the preset angle M of rotation of the flap unit of the flap mechanism becomes larger, and when the preset angle M increases to a certain extent, as the impurity concentration in the air continues to rise, the preset angle M of rotation of the flap mechanism becomes smaller.
According to another embodiment of the present application, there is provided a control apparatus of a fuel cell air supply system, as shown in fig. 7, which is a block diagram of a control apparatus of an alternative fuel cell air supply system according to the present application, the control apparatus including: an acquisition unit 42, a determination unit 44 and a generation unit 46. The collecting unit 42 is configured to collect rotation speed information of the air compressor, the determining unit 44 is configured to determine a pressure value of the air compressor according to the rotation speed information, and the generating unit 46 is configured to generate a control strategy set when the determined pressure value is greater than a required pressure value of the fuel cell air supply system, where the control strategy set is used to control a flap unit of the flap mechanism to rotate by a preset angle.
In the embodiment, the rotating speed information of the air compressor is acquired, the pressure value of the air compressor is determined according to the rotating speed information, and a control strategy set is generated under the condition that the determined pressure value is greater than the required pressure value of the fuel air supply system and is used for controlling the baffle unit of the baffle mechanism to rotate by a preset angle, so that the blocked area of the filtering sound absorption part can be controlled, the flow area is adjusted, the blocked part of the filtering sound absorption part does not participate in the filtration of air, the loss of the filtering sound absorption part is reduced, and the service life of the fuel cell air supply system can be prolonged.
According to another specific embodiment of the present application, there is also provided a computer-readable storage medium, which includes a stored program, wherein the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the steps of the method in the above-mentioned embodiments.
According to another specific embodiment of the present application, there is also provided a processor for executing a program, where the program executes to perform the steps of the method in the above-mentioned embodiments.
By adopting the fuel cell air supply system and the control method thereof, the filtering and sound-absorbing part is adopted to replace two parts of the original air filter and the original air compressor sound-absorbing device, the pipeline design is simpler, the structure is more compact, and the number of parts is reduced. Wherein, filtration sound absorption portion and casing are top cap integrated design, and the accessible is changed the mode of top cap, realizes changing filtration sound absorption portion fast. The expansion angle position of separation blade mechanism is according to fuel cell air supply system pressure demand and outside air quality transform, when guaranteeing to filter the sound absorption effect, can also reduce the system resistance, improves the system and filters sound absorption material utilization ratio, increase of service life.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or may not be executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A fuel cell air supply system, comprising:
a housing (10), said housing (10) having a receiving cavity (11), said housing (10) having a first inlet end (12) and a first outlet end (13);
the air compressor (20), the air compressor (20) is arranged in the accommodating cavity (11);
a filtering and sound absorbing part (30), wherein the filtering and sound absorbing part (30) is arranged along the peripheral surface of the shell (10), and the filtering and sound absorbing part (30) is provided with a second inlet end (31) and a second outlet end (32);
the second inlet end (31) is communicated with the first inlet end (12), the second outlet end (32) is communicated with an air inlet of the air compressor (20), and an air outlet of the air compressor (20) is communicated with the first outlet end (13).
2. The fuel cell air supply system according to claim 1, wherein the filtering sound-absorbing portion (30) is an annular structure, and an inner circle of the filtering sound-absorbing portion (30) is disposed in conformity with an outer surface of the case (10).
3. The fuel cell air supply system according to claim 1 or 2, wherein the casing (10) includes:
the improved structure of the air conditioner casing comprises a casing body (100), wherein a baffle mechanism (14) is arranged at one end of the casing body (100), the baffle mechanism (14) is located between a second inlet end (31) and a first inlet end (12), the baffle mechanism (14) is rotationally arranged along the circumferential direction of the casing body (100), and the baffle mechanism (14) is used for adjusting the flow area of the second inlet end (31).
4. A fuel cell air supply system according to claim 3, wherein at least part of the flap mechanism (14) has a plurality of deployed positions, wherein a maximum angular deployed position and a minimum angular deployed position are included in the plurality of deployed positions, and part of the second inlet end (31) communicates with the first inlet end (12) when the flap mechanism (14) is in the maximum angular deployed position.
5. A fuel cell air supply system according to claim 3, wherein said shutter mechanism (14) includes:
the baffle units (141), the baffle units (141) are multiple, the baffle units (141) are arranged along the circumferential direction of the shell body (100) at intervals, an avoiding channel is formed between the adjacent baffle units (141), the part located on one side of the avoiding channel is provided with the filtering and sound absorbing part (30) to form the first inlet end (12), and at least one of the baffle units (141) is arranged along the circumferential direction of the shell body (100) in a movable mode.
6. A control method of a fuel cell air supply system, characterized by comprising:
collecting the rotating speed information of an air compressor;
determining a pressure value of the air compressor according to the rotating speed information;
and under the condition that the pressure value is determined to be larger than the required pressure value of the fuel cell air supply system, generating a control strategy set, wherein the control strategy set is used for controlling a baffle unit of a baffle mechanism to rotate by a preset angle.
7. The control method according to claim 6, wherein in the case where the pressure value is larger than a required pressure value of the fuel cell air supply system, generating a set of control strategies includes:
periodically collecting air quality parameters sensed by an air quality sensor;
judging whether the air quality parameters collected each time meet a first preset condition;
under the condition that the air quality parameter is determined to meet a first preset condition, determining the concentration of harmful substances such as impurity particles and the like contained in the air based on the air quality parameter;
judging whether the concentration meets a second preset condition or not;
if so, generating a first target control strategy in the control strategy set, wherein the first target control strategy is used for controlling the expansion angle of the baffle unit of the baffle mechanism to be increased so as to reduce the flow area;
and if not, generating a second target control strategy in the control strategy set, wherein the second target control strategy is used for controlling the expansion angle of the baffle unit of the baffle mechanism to be reduced so as to increase the flow area.
8. A control device of a fuel cell air supply system, characterized by comprising:
the acquisition unit is used for acquiring the rotating speed information of the air compressor;
the determining unit is used for determining the pressure value of the air compressor according to the rotating speed information;
and the generating unit is used for generating a control strategy set under the condition that the pressure value is determined to be larger than the required pressure value of the fuel cell air supply system, and the control strategy set is used for controlling the baffle unit of the baffle mechanism to rotate by a preset angle.
9. A computer-readable storage medium, comprising a stored program, wherein the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the control method of any one of claims 6 to 7.
10. A processor, characterized in that the processor is configured to run a program, wherein the program is configured to execute the control method according to any one of claims 6 to 7 when running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210427929.7A CN114725435A (en) | 2022-04-22 | 2022-04-22 | Fuel cell air supply system and control method and control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210427929.7A CN114725435A (en) | 2022-04-22 | 2022-04-22 | Fuel cell air supply system and control method and control device thereof |
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| CN114725435A true CN114725435A (en) | 2022-07-08 |
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| CN202210427929.7A Pending CN114725435A (en) | 2022-04-22 | 2022-04-22 | Fuel cell air supply system and control method and control device thereof |
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