CN111068414A - Air filtering system and filtering method - Google Patents
Air filtering system and filtering method Download PDFInfo
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- CN111068414A CN111068414A CN201911303913.XA CN201911303913A CN111068414A CN 111068414 A CN111068414 A CN 111068414A CN 201911303913 A CN201911303913 A CN 201911303913A CN 111068414 A CN111068414 A CN 111068414A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/42—Basic components
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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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
- H01M8/0687—Reactant purification by the use of membranes or filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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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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Abstract
本发明公开了一种空气过滤系统及过滤方法，属于燃料电池技术领域。空气过滤系统包括第一过滤器，用于过滤空气中的颗粒物；第二过滤器，其与所述第一过滤器连接，用于过滤经所述第一过滤器后的空气中的酸性杂质；第三过滤器，所述第三过滤器与所述第一过滤器连接，并与所述第二过滤器并联连接，用于过滤经所述第一过滤器后的空气中的碱性杂质；控制模块，所述控制模块与所述第一过滤器控制连接，用于控制并分配由所述第一过滤器分别进入所述第二过滤器与所述第三过滤器的空气量，以使经所述第二过滤器与所述第三过滤器过滤后并混合的空气的PH值能够满足燃料电池的要求。其优点在于：能够使过滤的空气的PH值实时满足燃料电池的要求。
The invention discloses an air filtering system and a filtering method, belonging to the technical field of fuel cells. The air filtration system includes a first filter for filtering particulate matter in the air; a second filter, which is connected with the first filter, for filtering acid impurities in the air after passing through the first filter; a third filter, the third filter is connected with the first filter and connected in parallel with the second filter for filtering alkaline impurities in the air after passing through the first filter; A control module, the control module is in control connection with the first filter, for controlling and distributing the amount of air entering the second filter and the third filter respectively from the first filter, so that the The pH value of the air filtered and mixed by the second filter and the third filter can meet the requirements of the fuel cell. The advantage is that the pH value of the filtered air can meet the requirements of the fuel cell in real time.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to an air filtering system and a filtering method.
Background
With the increasing problems of energy consumption and environmental pollution, the conventional fuel oil automobile cannot meet the requirement of environmental protection. The new energy fuel cell automobile has the advantages of no pollution, high energy conversion efficiency and fast fuel filling, and is developed rapidly at home and abroad.
The air filtering system is used as an indispensable auxiliary system in the fuel cell and provides clean air for the fuel cell, so that the provided air and hydrogen fuel provided by a hydrogen supply system in the fuel cell are subjected to chemical reaction in a fuel cell stack to generate electric energy.
However, in the existing air filtration system, all filter elements in the air filtration system are integrally connected together, and the filtration mode is single, so that the air filtration system cannot adopt corresponding filtration treatment aiming at different ambient air qualities, and the filtered air quality cannot meet the requirements of a fuel cell in real time; and when the function of one of the filter elements is invalid, the whole filter element in the air filtering system must be replaced, which causes great waste, wastes time and labor and causes lower filtering efficiency.
In view of the foregoing, it is desirable to provide an air filtration system and a filtration method to solve the above problems.
Disclosure of Invention
One object of the present invention is to provide an air filtration system that enables the PH of the filtered air to meet the requirements of the fuel cell in real time.
In order to achieve the purpose, the invention adopts the following technical scheme:
an air filtration system comprising:
a first filter for filtering particulate matter in the air;
the second filter is connected with the first filter and is used for filtering acidic impurities in the air after passing through the first filter;
the third filter is connected with the first filter, is connected with the second filter in parallel and is used for filtering alkaline impurities in the air after passing through the first filter;
and the control module is in control connection with the first filter and is used for controlling and distributing the air amount respectively entering the second filter and the third filter from the first filter, so that the pH value of the air filtered and mixed by the second filter and the third filter can meet the requirement of a fuel cell.
Preferably, the air filtering system further comprises a fourth filter, one end of the fourth filter is connected to the second filter and the third filter, and the fourth filter is used for mixing the air filtered by the second filter and the air filtered by the third filter and filtering the acidic impurities and the basic impurities in the mixed air.
Preferably, the other end of the fourth filter is connected to the fuel cell to supply the air filtered by the fourth filter to the fuel cell.
Preferably, the air filtration system further comprises a flow regulating valve, one end of the flow regulating valve is connected with the first filter, the other end of the flow regulating valve is connected with the second filter and the third filter, the flow regulating valve is in control connection with the control module, and the control module controls the proportion of the air flow distributed by the flow regulating valve so as to control the air amount entering the second filter and the third filter from the first filter respectively.
Preferably, the air filtration system further comprises a PH sensor connected to the fourth filter for detecting the PH value of the air filtered by the fourth filter.
Preferably, the PH sensor is further in signal connection with the control module, and the PH sensor sends the detected PH value to the control module, so that the control module adjusts the proportion of the air flow distributed by the flow regulating valve according to the PH value.
Preferably, the air filtration system further comprises a pressure sensor connected with the first filter for detecting a pressure value of the first filter.
Preferably, the pressure sensor is further in signal connection with the control module, the pressure sensor sends the detected pressure value to the control module, and the control module judges whether the first filter is blocked according to the pressure value.
Preferably, the fourth filter is an acid-base complex filter.
Another object of the present invention is to provide an air filtering method using an air filtering system that can make the PH of the filtered air meet the requirements of the fuel cell in real time.
In order to achieve the purpose, the invention adopts the following technical scheme:
an air filtration method using the air filtration system as described above.
The invention has the beneficial effects that:
the invention provides an air filtering system and a filtering method. In the air filtering system, the first filter filters out the particulate matters in the air, so that the second filter filters out the acidic impurities in the air and the third filter filters out the alkaline impurities in the air; when the air quality entering the first filter is different, the control module can control different air proportions entering the second filter and the third filter, so that the PH value of the filtered air can meet the requirement of a fuel cell in real time; due to the arrangement of the control module, even in various air environments with different qualities and components, the control module can ensure that the PH value of the air entering the fuel cell meets the requirement, so that the adaptability and the universality of the air filtering system are higher; the first filter, the second filter and the third filter are arranged separately, so that the three filters can be fully used, and the use cost is saved to the maximum extent; when one of the filters fails, only the filter needs to be replaced independently, and all the filters do not need to be replaced, so that resources and time are greatly saved, and the filtering efficiency is high.
Drawings
FIG. 1 is a schematic diagram of an air filtration system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an air filtering method according to a second embodiment of the present invention.
Description of reference numerals:
in the figure:
1-a first filter; 2-a flow regulating valve; 3-a second filter; 4-a fourth filter; 5-a PH sensor; 6-a fuel cell; 7-a control module; 8-a third filter; 9-pressure sensor.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features. Like reference numerals refer to like elements throughout the specification.
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
Example one
The embodiment provides an air filtering system for filtering particulate matters, acidic impurities and alkaline impurities in air, and then using the filtered air in a fuel cell 6 of an automobile, so that the pH value of the filtered air can meet the reaction requirement of the fuel cell 6 in real time, and the reaction of the fuel cell 6 is sufficient.
Specifically, as shown in fig. 1, the air filtration system includes a first filter 1, a second filter 3, and a third filter 8. Wherein the first filter 1 is used for filtering particulate matters in air; the second filter 3 is connected with the first filter 1 and is used for filtering acidic impurities in the air passing through the first filter 1 to make the filtered air alkaline; the third filter 8 is connected with the first filter 1 and the second filter 3 in parallel, and is used for filtering alkaline impurities in the air after passing through the first filter 1, so that the filtered air is acidic. In this embodiment, the first filter 1 is a particulate filter, the second filter 3 is an acidic filter, and the third filter 8 is an alkaline filter.
The second filter 3 and the third filter 8 are connected in parallel and are connected with the first filter 1 in series, namely the first filter 1, the second filter 3 and the third filter 8 are arranged separately, so that the functions of the three filters can be fully used, and the use cost is saved to the maximum extent; when the function of one of the filters is invalid, only the filter needs to be replaced independently, and all the filters do not need to be replaced, so that resources and time are greatly saved, and the filtering efficiency is higher.
Further, the air filtering system further comprises a control module 7, wherein the control module 7 is in control connection with the first filter 1 and is used for controlling and distributing the air volume entering the second filter 3 from the first filter 1 and the air volume entering the third filter 8 respectively. When the alkaline air filtered by the second filter 3 and the acidic air filtered by the third filter 8 are mixed with each other, the PH of the mixed air can meet the requirements of the fuel cell 6.
By arranging the control module 7, namely when the air quality entering the first filter 1 is different, the control module 7 can control different air ratios entering the second filter 3 and the third filter 8, so that the PH value of the mixture of the alkaline air filtered by the second filter 3 and the acidic air filtered by the third filter 8 can meet the requirement of the fuel cell 6 in real time; due to the arrangement of the control module 7, even in various air environments with different qualities and components, the control module 7 can ensure that the pH value of the air entering the fuel cell 6 meets the requirements, so that the adaptability and the universality of the air filtering system are high.
Further, the air filtering system further includes a fourth filter 4, one end of the fourth filter 4 is connected in series with the second filter 3 and the third filter 8, and the other end is connected with the fuel cell 6, so that the air filtered by the fourth filter 4 is supplied to the fuel cell 6, thereby facilitating the use of the fuel cell 6.
Specifically, the fourth filter 4 is used for mixing the air filtered by the second filter 3 and the third filter 8, and further filtering acidic impurities and alkaline impurities in the mixed air, so that the PH value of the air passing through the fourth filter 4 can better meet the requirement of the fuel cell 6. In this embodiment, the fourth filter 4 is an acid-base composite filter.
By providing the fourth filter 4, on the one hand, the air filtered by the second filter 3 and the third filter 8 can be uniformly mixed, and the uniformly mixed air can be supplied to the fuel cell 6, so that the reaction of the fuel cell 6 can be more sufficient; on the other hand, the fourth filter 4 further filters acidic impurities and alkaline impurities in the air, so that the PH value of the filtered air can meet the requirements of the fuel cell 6.
Further, the air filtering system further comprises a flow regulating valve 2, one end of the flow regulating valve 2 is connected with the first filter 1, the other end of the flow regulating valve 2 is respectively connected with the second filter 3 and the third filter 8, the flow regulating valve 2 is in control connection with a control module 7, and the control module 7 can control the proportion of the air flow distributed to the second filter 3 and the third filter 8 by the flow regulating valve 2 so as to control the air amount entering the second filter 3 and the air amount entering the third filter 8 respectively from the first filter 1.
Specifically, the air filtration system further comprises a PH sensor 5, and the PH sensor 5 is connected to the fourth filter 4 and is configured to detect a PH value of the air filtered by the fourth filter 4. Wherein, PH sensor 5 still with control module 7 signal connection, after PH sensor 5 detected the PH value of the air after fourth filter 4 filters, PH sensor 5 sent the PH value that detects to control module 7.
When the PH value received by the control module 7 does not reach the preset required value, the control module 7 controls and adjusts the proportion of the air flow distributed to the second filter 3 and the third filter 8 by the flow regulating valve 2, and then re-filters the air so that the PH value of the filtered air reaches the preset required value to meet the requirement of the fuel cell 6, and then supplies the air meeting the requirement to the fuel cell 6 for use.
Further, the air filtration system further comprises a pressure sensor 9, and the pressure sensor 9 is connected with the first filter 1 and is used for detecting the pressure value of the first filter 1. Wherein, pressure sensor 9 still with control module 7 signal connection, pressure sensor 9 sends the pressure value that detects to control module 7, and control module 7 judges whether first filter 1 blocks up according to the pressure value received. When the pressure value received by the control module 7 is larger than the preset limit value, the first filter 1 is blocked, and the control module 7 gives out sound and light alarm to prompt a worker that the first filter 1 is blocked.
Through setting up pressure sensor 9 to with pressure sensor 9 and control module 7 signal connection, can in time monitor the jam condition of first filter 1, can guarantee to provide the sufficient air of fuel cell 6, in order to avoid first filter 1 to take place to block up, lead to not having the condition of sufficient air supply fuel cell 6, make whole fuel cell 6 can normal use.
Further, the control module 7 enables automatic control of the proportion of the air flow distributed by the flow regulating valve 2. The control module 7 is a master device for controlling the starting, speed regulation, braking and reversing of the motor by changing the wiring of the main circuit or the control circuit and changing the resistance value in the circuit according to a preset sequence. The system consists of a program counter, an instruction register, an instruction decoder, a time sequence generator and an operation controller, and is a decision mechanism for issuing commands, namely, the decision mechanism is used for coordinating and commanding the operation of the whole computer system. Since the control module 7 in this embodiment is a conventional control module in the prior art, detailed description is not repeated here.
Example two
In this embodiment, an air filtering method is provided, using the air filtering system of the first embodiment.
The invention provides a specific filtering process of an air filtering method, which comprises the following steps: as shown in fig. 2, firstly, air enters the first filter 1 to filter particulate matters, the air filtered by the first filter 1 flows into the second filter 3 and the third filter 8 respectively according to a certain proportion under the control of the control module 7 to filter acidic impurities and alkaline impurities in the air respectively, the alkaline air filtered by the second filter 3 and the acidic air filtered by the third filter 8 are merged, the merged air enters the fourth filter 4 to be filtered again, and finally the air filtered by the fourth filter 4 flows to the fuel cell 6 to be used by the fuel cell 6.
In the whole filtering process, the PH sensor 5 detects the PH value of the air filtered by the fourth filter 4, and then transmits the PH value to the control module 7, and the control module 7 adjusts the proportion of the air flow distributed to the second filter 3 and the third filter 8 by the flow regulating valve 2 according to the received PH value. The pressure sensor 9 detects a pressure value of the first filter 1, and then transmits the pressure value to the control module 7, and the control module 7 judges whether the first filter 1 is blocked according to the received pressure value.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911303913.XA CN111068414A (en) | 2019-12-17 | 2019-12-17 | Air filtering system and filtering method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911303913.XA CN111068414A (en) | 2019-12-17 | 2019-12-17 | Air filtering system and filtering method |
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| CN111068414A true CN111068414A (en) | 2020-04-28 |
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| CN201911303913.XA Pending CN111068414A (en) | 2019-12-17 | 2019-12-17 | Air filtering system and filtering method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025011932A1 (en) * | 2023-07-10 | 2025-01-16 | Robert Bosch Gmbh | Cell device with an air filter unit, and method for operating such a cell device |
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