CN113921982B - Exhaust device of fuel cell vehicle and control method - Google Patents
Exhaust device of fuel cell vehicle and control method Download PDFInfo
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- CN113921982B CN113921982B CN202111149410.9A CN202111149410A CN113921982B CN 113921982 B CN113921982 B CN 113921982B CN 202111149410 A CN202111149410 A CN 202111149410A CN 113921982 B CN113921982 B CN 113921982B
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- 239000000446 fuel Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 200
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 238000004806 packaging method and process Methods 0.000 claims abstract description 48
- 238000004891 communication Methods 0.000 claims description 13
- 238000005538 encapsulation Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 6
- 230000003584 silencer Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 description 9
- 230000008014 freezing Effects 0.000 description 9
- 238000004590 computer program Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/375—Vent means sensitive to or responsive to temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
-
- 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
- H01M8/0432—Temperature; Ambient temperature
-
- 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
-
- 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
- Y02E60/10—Energy storage using batteries
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Fuel Cell (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The embodiment of the application discloses a fuel cell vehicle exhaust device and a control method, wherein the fuel cell vehicle exhaust device, a first temperature sensor, a first humidity sensor, a second temperature sensor, a second humidity sensor and a first fan unit are all arranged on a packaging shell, a controller acquires a first temperature difference according to collected ambient temperature and first tail gas temperature, acquires the first humidity difference according to ambient humidity and first tail gas humidity, judges whether a condition of generating white gas according to the first temperature difference and the first humidity difference, and adjusts the air quantity of the first fan unit according to a judging result so that the temperature and the humidity of tail gas reach the condition of not generating white gas, water vapor in the tail gas is condensed in the packaging shell, the tail gas is discharged from a water outlet, air, hydrogen and the like in the tail gas are discharged from an air outlet, and therefore white gas generated from a tail gas discharging system is reduced.
Description
Technical Field
The application relates to the technical field of fuel cell vehicles, in particular to a fuel cell vehicle exhaust device and a control method.
Background
The tail gas exhausted from the tail gas exhaust system of the fuel cell vehicle contains air, liquid water, water vapor and a small amount of hydrogen.
In winter, the temperature of the tail gas exhausted by the tail exhaust system is lower and higher than the ambient temperature, so that the exhausted high-temperature tail gas can be liquefied into small water drops and frozen after encountering a low-temperature environment, and the water vapor floats in the air to form 'white gas', thereby seriously affecting the traffic vision, having serious potential safety hazard and being 'road blocking tigers' for batch popularization and application of fuel cells in cold areas.
Content of the application
The application provides an exhaust device of a fuel cell vehicle, which is used for reducing the generation of white gas and reducing the influence on traffic realization. The application also provides a control method of the fuel cell vehicle exhaust device.
In order to achieve the above object, the present application provides a fuel cell vehicle exhaust apparatus comprising:
the packaging shell is provided with an air inlet, an air outlet and a water outlet, the water outlet is positioned below the packaging shell, and the silencer is packaged in the packaging shell;
the first temperature sensor is arranged outside the packaging shell and is used for collecting the ambient temperature;
the first humidity sensor is arranged outside the packaging shell and is used for collecting ambient humidity;
the second temperature sensor is arranged at the air inlet and used for collecting the first tail gas temperature of the air inlet;
the second humidity sensor is arranged at the air inlet and used for collecting the first tail gas humidity of the air inlet;
the first fan unit is arranged in the packaging shell and is positioned at the upstream of the silencer and used for cooling tail gas entering the packaging shell, and the air outlet direction of the first fan unit faces the air outlet;
the controller is in communication connection with the first temperature sensor, the first humidity sensor, the second temperature sensor and the second humidity sensor, and the controller is used for adjusting the air quantity of the first fan set.
Preferably, in the above-described fuel cell vehicle exhaust apparatus, a third temperature sensor and a third humidity sensor are further included,
the third temperature sensor is arranged at the exhaust port and is used for collecting the temperature of the second tail gas of the exhaust port, the third temperature sensor is in communication connection with the controller,
the third humidity sensor is arranged at the exhaust port and used for collecting the humidity of the second tail gas of the exhaust port, and the third humidity sensor is in communication connection with the controller.
Preferably, in the exhaust device for a fuel cell vehicle, the exhaust device further includes a second fan set disposed in the package housing and located downstream of the muffler, and configured to cool exhaust gas located in the package housing, and the second fan set is in communication connection with the controller.
Preferably, in the above-described fuel cell vehicle exhaust apparatus, further comprising a water deflector provided in the package case,
the water baffle is positioned above the water outlet and is positioned at the downstream of the second fan unit, water vapor in the tail gas collides with the water baffle to form condensed water, and the formed condensed water is discharged from the water outlet.
Preferably, in the above-described fuel cell vehicle exhaust apparatus, a condenser is further included, provided in the package case, for cooling water vapor in the exhaust gas, the condenser being located upstream of the water deflector.
Preferably, in the above-described fuel cell vehicle exhaust apparatus, further comprising a fourth temperature sensor provided on the package case for collecting a drain temperature of the drain port,
the fourth temperature sensor is in communication with the controller.
A control method of a fuel cell vehicle exhaust apparatus, which is applied to the fuel cell vehicle exhaust apparatus described in any one of the above aspects, includes the steps of:
the first temperature sensor collects ambient temperature and transmits the ambient temperature to the controller, and the first humidity sensor collects ambient humidity and transmits the ambient humidity to the controller;
the second temperature sensor collects the first tail gas temperature of the tail gas of the air inlet of the packaging shell and transmits the first tail gas temperature to the controller, and the second humidity sensor collects the first tail gas humidity of the tail gas of the air inlet and transmits the first tail gas humidity to the controller;
the controller obtains a first temperature difference between the ambient temperature and the first exhaust gas temperature and a first humidity difference between the ambient temperature and the first exhaust gas humidity according to the received ambient temperature, the first exhaust gas temperature, the ambient humidity and the first exhaust gas humidity,
if the first temperature difference and the first humidity difference meet a first condition for generating white air, the controller regulates the air quantity of the first fan unit;
and if the first temperature difference and the first humidity difference meet a second condition of not generating white air, the controller reduces the air quantity of the first fan set.
Preferably, in the control method of the fuel cell vehicle exhaust apparatus described above, further comprising the step of:
the third temperature sensor collects the second tail gas temperature of the exhaust port of the packaging shell and transmits the second tail gas temperature to the controller, and the third humidity sensor collects the second tail gas humidity of the exhaust port and transmits the second tail gas humidity to the controller;
the controller receives the second exhaust gas temperature and the second exhaust gas humidity, and obtains a second temperature difference between the ambient temperature and the second exhaust gas temperature and a second humidity difference between the ambient humidity and the second exhaust gas humidity,
if the second temperature difference and the second humidity difference meet a third condition for generating white air, the controller regulates the air quantity of the first fan set;
and if the second temperature difference and the second humidity difference meet a fourth condition that white air is not generated, the controller adjusts the air quantity of the first fan set.
Preferably, in the control method of the fuel cell vehicle exhaust apparatus described above, further comprising the step of:
and if the air quantity of the first fan set is maximum, the second temperature difference and the second humidity difference still meet a third condition for generating white air, and the controller regulates the air quantity of the second fan set.
Preferably, in the control method of the fuel cell vehicle exhaust apparatus described above, further comprising the step of:
a fourth temperature sensor collects the drainage temperature of the drainage outlet of the packaging shell and transmits the drainage temperature to the controller;
the controller receives the drain temperature,
and if the drainage temperature is lower than the freezing temperature, the controller reduces the air quantity of the first fan set and/or the second fan set.
The embodiment of the application provides a fuel cell vehicle exhaust device, which comprises a packaging shell, a first temperature sensor, a first humidity sensor, a second temperature sensor, a second humidity sensor, a first fan unit and a controller. The first temperature sensor, the first humidity sensor, the second temperature sensor, the second humidity sensor and the first fan unit are all installed on the packaging shell, the controller obtains the first temperature difference between the ambient temperature and the first tail gas temperature and the first humidity difference between the ambient temperature and the first tail gas temperature according to the collected ambient temperature, the ambient humidity, the first tail gas temperature and the first humidity difference between the ambient humidity and the first tail gas humidity, the controller judges whether the condition of generating white gas is met according to the first temperature difference and the first humidity difference, if the condition of generating white gas is not met according to the first temperature difference and the first humidity difference, the controller does not adjust the air quantity of the first fan unit, if the condition of generating white gas is judged to be met according to the first temperature difference and the first humidity difference, the air quantity of the first fan unit is controlled to be adjusted, so that the temperature of tail gas is reduced, vapor in the tail gas is condensed in the packaging shell, formed condensed water is discharged from the water outlet, and the temperature and the humidity of the tail gas is reduced, and white gas generated by the tail gas discharging system is reduced.
The application also discloses a control method of the fuel cell vehicle exhaust device, which is suitable for the fuel cell vehicle exhaust device disclosed in any scheme. Since the fuel cell vehicle exhaust apparatus has the above technical effects, the control method using the fuel cell vehicle exhaust apparatus also has the same technical effects, and will not be described in detail herein.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is possible for those of ordinary skill in the art to obtain other drawings from the provided drawings without inventive effort, and to apply the present application to other similar situations from the provided drawings. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.
Fig. 1 is a schematic structural view of a fuel cell vehicle exhaust apparatus of the present application;
fig. 2 is a schematic view of the internal structure of the fuel cell vehicle exhaust apparatus of the present application;
fig. 3 is a flowchart of a control method of the fuel cell vehicle exhaust apparatus of the present application.
The drawings are as follows:
1. a package case 111, an air inlet 112, an air outlet 113, and a water outlet,
2. the device comprises a first temperature sensor, 3, a first humidity sensor, 4, a second temperature sensor, 5, a second humidity sensor, 6, a first fan set, 7, a controller, 8, a third temperature sensor, 9, a third humidity sensor, 10, a second fan set, 11, a water baffle, 12, a condenser, 13, a fourth temperature sensor, 14 and a silencer.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting of the application. The described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, for convenience of description, only a portion related to the related application is shown in the drawings. Embodiments of the application and features of the embodiments may be combined with each other without conflict.
It is to be understood that the terms "system," "apparatus," "unit," and/or "module" as used herein are one means for distinguishing between different components, elements, parts, portions, or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.
As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.
Wherein, in the description of the embodiments of the present application, unless otherwise indicated, "/" means or, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, in the description of the embodiments of the present application, "plurality" means two or more than two.
The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
A flowchart is used in the present application to describe the operations performed by a system according to embodiments of the present application. It should be appreciated that the preceding or following operations are not necessarily performed in order precisely. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.
Please refer to fig. 1-3.
Some embodiments of the present application disclose a fuel cell vehicle exhaust apparatus comprising a package housing 1, a first temperature sensor 2, a first humidity sensor 3, a second temperature sensor 4, a second humidity sensor 5, a first fan set 6, and a controller 7.
The packaging shell 1 is provided with an air inlet 111, an air outlet 112 and a water outlet 113, wherein the air inlet 111 is arranged at the air inlet end of the packaging shell 1, the air outlet 112 and the water outlet 113 are arranged at the air outlet end of the packaging shell 1, the air inlet 111 and the air outlet 112 are coaxially arranged and are respectively positioned at two ends of the packaging shell 1 in the axial direction, the water outlet 113 is arranged at the lower end of the pipe wall of the packaging shell 1, and the axis of the water outlet 113 is perpendicular to the axis of the air outlet 112.
The muffler 14 is encapsulated in the encapsulation housing 1, the air inlet of the muffler 14 is communicated with the air inlet 111 of the encapsulation housing 1, the air outlet and the water outlet of the muffler 14 are communicated with the inner cavity of the encapsulation housing 1, the air discharged through the air outlet of the muffler 14 enters the inner cavity of the encapsulation housing 1 and is continuously discharged through the air outlet of the encapsulation housing 1, and the condensed water discharged through the water outlet of the muffler 14 is finally discharged through the water outlet of the encapsulation housing 1.
The first temperature sensor 2 and the first humidity sensor 3 are both arranged outside the packaging shell 1 and are respectively used for collecting the ambient temperature and the ambient humidity;
the second temperature sensor 4 and the second humidity sensor 5 are both arranged at the air inlet 111 of the packaging shell 1 and are used for collecting the first exhaust gas temperature and the first exhaust gas humidity of the exhaust gas entering the packaging shell 1.
The first fan set 6 is disposed in the package 1 and upstream of the muffler 14, and is configured to cool the exhaust gas entering the package 1.
The first temperature sensor 2, the first humidity sensor 3, the second temperature sensor 4, the second humidity sensor 5 and the first fan set 6 are all in communication with the controller 7.
The first temperature sensor 2 transmits the collected ambient temperature to the controller 7, the first humidity sensor 3 transmits the collected ambient humidity to the controller 7, the second temperature sensor 4 transmits the collected first tail gas temperature to the controller 7, and the second humidity sensor 5 transmits the collected first tail gas humidity to the controller 7.
The controller 7 adjusts the air volume of the first fan group 6 according to the received ambient temperature, ambient humidity, first exhaust gas temperature, and first exhaust gas humidity.
The controller 7 may adjust the air volume of the first fan unit 6 by adjusting the air volume of the first fan unit 6, or may adjust the air volume of the first fan unit 6 by reducing the air volume of the first fan unit 6, and the minimum air volume of the first fan unit 6 may be adjusted to zero.
The air volume of the first fan set 6 is zero, the first fan set 6 is in a stop state, the air volume of the first fan set 6 is not zero, and the first fan set 6 is in a start state.
The application discloses a fuel cell vehicle exhaust device, which comprises a packaging shell 1, a first temperature sensor 2, a first humidity sensor 3, a second temperature sensor 4, a second humidity sensor 5, a first fan unit 6 and a controller 7. The first temperature sensor 2, the first humidity sensor 3, the second temperature sensor 4, the second humidity sensor 5 and the first fan set 6 are all installed on the package housing 1, the controller 7 obtains a first temperature difference between the ambient temperature and the first exhaust temperature and a first humidity difference between the ambient humidity and the first exhaust humidity according to the collected ambient temperature, the ambient humidity, the first exhaust temperature and the first exhaust humidity, the controller 7 judges whether a condition for generating white air is met according to the first temperature difference and the first humidity difference, if the condition for generating white air is not met according to the first temperature difference and the first humidity difference, the controller 7 does not adjust the air quantity of the first fan set 6, if the condition for generating white air is judged to be met according to the first temperature difference and the first humidity difference, the controller controls to adjust the air quantity of the first fan set 6 so as to reduce the temperature of the exhaust, enable water vapor in the exhaust to be condensed in the package housing 1, the formed condensate water is discharged from 113, the temperature and the water outlet of the exhaust is reduced, and the white air generated by the tail exhaust system is reduced.
The condition for generating white gas will be described herein, in which the exhaust gas enters the environment to generate white gas because the first exhaust gas temperature is higher than the ambient temperature and the first exhaust gas humidity is higher than the ambient humidity. When white gas is not generated, the ambient temperature is required to be higher than the first tail gas temperature and/or the ambient humidity is required to be higher than the first tail gas humidity, namely, the first temperature difference is more than 0 and/or the first humidity difference is more than 0;
when white gas is generated, the ambient temperature is required to be lower than the first tail gas temperature and the ambient humidity is required to be lower than the first tail gas humidity, namely, the first temperature difference is less than or equal to 0 and the first humidity difference is less than or equal to 0.
Therefore, the first condition for generating white gas is that the first temperature difference is equal to or less than 0 and the first humidity difference is equal to or less than 0;
the second condition for not producing white gas is that the first temperature difference is > 0 and/or the first humidity difference is > 0.
The disclosed fuel cell vehicle exhaust further includes a third temperature sensor 8 and a third humidity sensor 9.
The third temperature sensor 8 and the third humidity sensor 9 are both arranged at the exhaust port 112 of the packaging shell 1, the third temperature sensor 8 is used for collecting the second exhaust gas temperature of the exhaust port 112 and transmitting the second exhaust gas temperature to the controller 7, and the third humidity sensor 9 is used for collecting the second exhaust gas humidity of the exhaust port 112 and transmitting the second exhaust gas temperature to the controller 7.
The third temperature sensor 8 and the third humidity sensor 9 are used for collecting the second exhaust gas temperature and the second exhaust gas humidity of the gas discharged from the exhaust port 112, comparing the second exhaust gas temperature and the second exhaust gas humidity with the ambient temperature and the ambient humidity respectively, and judging whether the exhaust gas discharged from the exhaust port 112 meets the condition of generating white gas.
If the second temperature difference between the ambient temperature and the second exhaust gas temperature and the second humidity difference between the ambient humidity and the second exhaust gas humidity meet the condition of generating white gas, the controller 7 regulates the air quantity of the first fan set 6;
if the second temperature difference between the ambient temperature and the second exhaust gas temperature and the second humidity difference between the ambient humidity and the second exhaust gas humidity satisfy the condition of not generating white air, the controller 7 decreases the air volume of the first fan group 6.
The condition for white gas generation will be described herein, in which the exhaust gas enters the environment to generate white gas because the second exhaust gas temperature is higher than the ambient temperature and the second exhaust gas humidity is higher than the ambient humidity. When white gas is not generated, the ambient temperature is higher than the second tail gas temperature and/or the ambient humidity is higher than the second tail gas humidity, namely, the second temperature difference is more than 0 and/or the second humidity difference is more than 0;
when white gas is generated, the ambient temperature is required to be lower than the second tail gas temperature and the ambient humidity is required to be lower than the second tail gas humidity, namely, the second temperature difference is less than or equal to 0 and the second humidity difference is less than or equal to 0.
Therefore, the third condition for generating white gas is that the first temperature difference is equal to or less than 0 and the first humidity difference is equal to or less than 0, and the second temperature difference is equal to or less than 0 and the second humidity difference is equal to or less than 0;
the fourth condition for not producing white gas is that the first temperature difference is > 0 and/or the first humidity difference is > 0, the second temperature difference is > 0 and/or the second humidity difference is > 0.
To further optimize the above technical solution, the fuel cell vehicle exhaust apparatus disclosed in the present application further includes the second fan set 10.
The second fan set 10 is disposed in the package housing 1 and is located downstream of the muffler 14, and is used for cooling the exhaust gas located in the package housing 1, and the second fan set 10 is in communication connection with the controller 7.
Specifically, when the air volume of the first fan unit 6 has been adjusted to the maximum, the second temperature difference between the second exhaust gas temperature and the ambient temperature, and the second humidity difference between the second exhaust gas humidity and the ambient humidity satisfy the condition of generating white air, and at this time, the controller 7 adjusts the air volume of the second fan unit 10 to compensate the air volume of the first fan unit 6.
Specifically, after the air volume of the first fan unit 6 is adjusted, the second temperature difference between the second exhaust gas temperature and the ambient temperature, and the second humidity difference between the second exhaust gas humidity and the ambient humidity satisfy the condition of not generating white air, and then the controller 7 adjusts the air volume of the second fan unit 10 to be reduced or even zero.
The second fan set 10 is in a shutdown state when the air volume of the second fan set 10 is zero, and the second fan set 10 is in a startup state when the air volume of the second fan set 10 is not zero.
In order to further reduce the water vapor discharged through the exhaust port 112, the application is provided with the water baffle plate 11 in the packaging shell 1, and the water baffle plate 11 can play a role in blocking the movement of the tail gas entering the packaging shell 1, so that the water vapor in the tail gas collides with the water baffle plate 11 to form condensed water, and the formed condensed water is discharged from the exhaust port 113.
In some embodiments of the present application, the water baffle 11 is provided with holes through which the tail gas can pass, and the position of the water baffle 11 where no holes are provided can intercept water vapor, and the holes on the water baffle 11 can allow the tail gas to pass through without affecting the emission of the tail gas. The number of holes is plural, and the positions, shapes and sizes of the holes are selected by those skilled in the art according to actual needs, and are not particularly limited herein.
In some embodiments of the present application, the water baffle 11 is provided with a strip-shaped through groove for the tail gas to pass through, the position on the water baffle 11, where the strip-shaped through groove is not provided, can intercept water vapor, and the strip-shaped through groove on the water baffle 11 can pass through together with the tail gas, so that the emission of the tail gas is not affected. The number of the strip-shaped through erasers is a plurality, and the opening positions, the opening shapes and the opening sizes of the strip-shaped through grooves are selected by those skilled in the art according to actual needs, and are not particularly limited herein.
As shown in fig. 2, the water baffle 11 is an L-shaped water baffle 11, and the L-shaped water baffle 11 includes a first plate perpendicular to the axis of the package housing and a second plate parallel to the axis of the package housing, the first plate being perpendicular to the second plate, wherein the second plate is connected to the exhaust end of the package housing.
In order to improve the condensation effect of the water baffle 11 on the water vapor, the water baffle 11 is a metal plate in the application.
Preferably, the water deflector 11 is disposed above the water discharge opening 113 and downstream of the second fan assembly 10.
The water deflector 11 is not limited to a metal plate, but may be a plastic plate, and is not particularly limited herein.
The application utilizes the condenser 12 and the water baffle 11 to collect and guide the condensed water vapor so that the formed condensed water can be smoothly discharged along the water outlet 113.
The fuel cell exhaust vehicle disclosed by the application further comprises a condenser 12, wherein the condenser 12 is positioned upstream of the water baffle 11 and is used for condensing water vapor in the tail gas.
The condenser is used for condensing the water vapor in the tail gas, so that the content of the water vapor in the tail gas can be greatly reduced, and the generated white gas is reduced.
As shown in fig. 2, the drain port 113 is provided with a fourth temperature sensor 13, and the fourth temperature sensor 13 is provided on the package case 1 to collect the drain temperature of the drain port 113.
The fourth temperature sensor 13 is in communication with the controller 7, and the controller 7 adjusts the air volume of the first fan unit 6 and/or the second fan unit 10 according to the drain temperature.
Specifically, when the drain temperature of the drain port 113 collected by the fourth temperature sensor 13 is lower than the freezing temperature, the controller 7 decreases the air volume of the first fan unit 6 and/or the second fan unit 10 to increase the drain temperature of the drain port 113;
when the drain temperature of the drain port 113 collected by the fourth temperature sensor 13 is lower than the freezing temperature, the controller 7 does not operate.
When the temperature of the drain water collected by the fourth temperature sensor 13 is lower than the freezing temperature, the air volumes of the first fan unit 6 and the second fan unit 10 need to be reduced by the controller 7, and then whether white air is generated or not is considered. Once the drain port 113 is clogged by ice, the package housing 1 is inevitably disabled.
The step of reducing the white gas generation can be performed only when the temperature of the drain water collected by the fourth temperature sensor 13 is higher than the freezing temperature.
In the process of reducing white gas, the first fan set 6 is used as a fan for mainly cooling the tail gas, and the second fan set 10 is used as an auxiliary fan set.
Preferably, the first fan unit 6 and the second fan unit 10 each comprise at least two air coolers, wherein the at least two air coolers of the first fan unit 6 are mounted on the end face of the air inlet end of the packaging shell 1, the air outlet direction of the air coolers faces the air outlet end of the packaging shell 1, and the at least two air coolers of the second fan unit 10 are mounted on the cylinder wall of the packaging shell 1 and are uniformly distributed along the axial direction of the packaging shell 1.
In some embodiments of the application, the first fan set 6 and the second fan set 10 each comprise two fans.
According to the application, the air in the environment is introduced into the packaging shell 1 through the first fan unit 6 and/or the second fan unit 10, and is mixed with the tail gas in the packaging shell 1, so that the water vapor in the tail gas is condensed and discharged, and the purpose of exhausting and removing water is realized.
The lower the ambient temperature, the more obvious the effect of using the first fan set 6 and/or the second fan set 10 to cool the water vapor in the exhaust gas, which is beneficial to the popularization of the fuel cell vehicle in the region with lower ambient temperature.
At the same time, the amount of water vapor discharged through the exhaust port 112 is reduced, and the amount of water vapor in the exhaust gas combined with pollutants in the air is also reduced, thereby reducing the harm to the physical health of the human body to some extent.
The application also discloses a control method of the fuel cell vehicle exhaust device, which is suitable for the fuel cell vehicle exhaust device disclosed in any scheme.
Since the fuel cell vehicle exhaust apparatus has the above technical effects, the control method using the fuel cell vehicle exhaust apparatus also has the same technical effects, and will not be described in detail herein.
The control method of the fuel cell vehicle exhaust device disclosed by the application comprises the following steps:
the first temperature sensor 2 collects the ambient temperature and transmits the ambient temperature to the controller 7, and the first humidity sensor 3 collects the ambient humidity and transmits the ambient humidity to the controller 7;
the second temperature sensor 4 collects the first exhaust gas temperature of the exhaust gas of the air inlet 111 of the packaging shell 1 and transmits the first exhaust gas temperature to the controller 7, and the second humidity sensor 5 collects the first exhaust gas humidity of the exhaust gas of the air inlet 111 and transmits the first exhaust gas humidity to the controller 7;
the controller 7 obtains a first temperature difference between the ambient temperature and the first exhaust gas temperature and a first humidity difference between the ambient temperature and the first exhaust gas humidity based on the received ambient temperature, first exhaust gas temperature, ambient humidity and first exhaust gas humidity,
if the first temperature difference and the first humidity difference meet the first condition for generating white air, the controller 7 regulates the air quantity of the first fan set 6;
if the first temperature difference and the first humidity difference satisfy the second condition that white air is not generated, the controller 7 decreases the air volume of the first fan group 6.
The air volume of the first fan set 6 is zero, the first fan set 6 is in a stop state, the air volume of the first fan set 6 is not zero, and the first fan set 6 is in a start state.
The condition for generating white gas is described here, and the exhaust gas enters the environment to generate white gas because the temperature of the exhaust gas is higher than the ambient temperature and the humidity of the exhaust gas is higher than the ambient humidity. The first temperature difference is the difference between the ambient temperature and the first tail gas temperature, the first temperature difference is more than 0, namely the ambient temperature is higher than the first tail gas temperature, the first humidity difference is the difference between the ambient humidity and the first tail gas humidity, and the first humidity difference is more than 0, namely the ambient humidity is higher than the first tail gas humidity.
Then, the first condition for generating white gas is that the first temperature difference is less than or equal to 0 and the first humidity difference is less than or equal to 0;
the second condition for not producing white gas is that the first temperature difference is > 0 and/or the first humidity difference is > 0.
The application discloses a control method of a fuel cell vehicle exhaust device, which further comprises the following steps:
the third temperature sensor 8 collects the second exhaust gas temperature of the exhaust port 112 of the packaging shell 1 and transmits the second exhaust gas temperature to the controller 7, and the third humidity sensor 9 collects the second exhaust gas humidity of the exhaust port 112 and transmits the second exhaust gas humidity to the controller 7;
the controller 7 receives the second exhaust gas temperature and the second exhaust gas humidity, and acquires a second temperature difference between the ambient temperature and the second exhaust gas temperature, and a second humidity difference between the ambient humidity and the second exhaust gas humidity,
if the second temperature difference and the second humidity difference meet the third condition for generating white air, the controller 7 regulates the air quantity of the first fan group 6;
if the second temperature difference and the second humidity difference satisfy the fourth condition that white air is not generated, the controller 7 decreases the air volume of the first fan group 6.
The condition for generating white gas is described here, and the exhaust gas enters the environment to generate white gas because the temperature of the exhaust gas is higher than the ambient temperature and the humidity of the exhaust gas is higher than the ambient humidity. The second temperature difference is the difference between the ambient temperature and the second tail gas temperature, the second temperature difference is more than 0, namely the ambient temperature is higher than the second tail gas temperature, the second humidity difference is the difference between the ambient humidity and the second tail gas humidity, and the second humidity difference is more than 0, namely the ambient humidity is higher than the second tail gas humidity.
Then, the third condition for generating white gas is that the first temperature difference is less than or equal to 0 and the first humidity difference is less than or equal to 0, and the second temperature difference is less than or equal to 0 and the second humidity difference is less than or equal to 0;
the fourth condition for not producing white gas is that the first temperature difference is > 0 and/or the first humidity difference is > 0, the second temperature difference is > 0 and/or the second humidity difference is > 0.
If the air volume of the first fan set 6 is maximized, the second temperature difference and the second humidity difference still satisfy the third condition for generating white air, and the controller 7 increases the air volume of the second fan set 10.
The application discloses a control method of a fuel cell vehicle exhaust device, which further comprises the following steps:
the fourth temperature sensor 13 collects the drain temperature of the drain port 113 of the package housing 1 and transmits the drain temperature to the controller 7;
the controller 7 receives the temperature of the drain water,
if the temperature of the drain water is lower than the temperature at which icing occurs, the controller 7 reduces the air volume of the first fan unit 6 and/or the second fan unit 10.
Specifically, when the drain temperature of the drain port 113 collected by the fourth temperature sensor 13 is lower than the freezing temperature, the controller 7 decreases the air volume of the first fan unit 6 and/or the second fan unit 10 to increase the drain temperature of the drain port 113;
when the drain temperature of the drain port 113 collected by the fourth temperature sensor 13 is lower than the freezing temperature, the controller 7 does not operate.
When the temperature of the drain water collected by the fourth temperature sensor 13 is lower than the freezing temperature, the air volumes of the first fan unit 6 and the second fan unit 10 need to be reduced by the controller 7, and then whether white air is generated or not is considered. Once the drain port 113 is clogged by ice, the package housing 1 is inevitably disabled.
The step of reducing the white gas generation can be performed only when the temperature of the drain water collected by the fourth temperature sensor 13 is higher than the freezing temperature.
In the process of reducing white gas, the first fan set 6 is used as a fan for mainly cooling the tail gas, and the second fan set 10 is used as an auxiliary fan set.
Preferably, the first fan unit 6 and the second fan unit 10 each comprise at least two air coolers, wherein the at least two air coolers of the first fan unit 6 are mounted on the end face of the air inlet end of the packaging shell 1, the air outlet direction of the air coolers faces the air outlet end of the packaging shell 1, and the at least two air coolers of the second fan unit 10 are mounted on the cylinder wall of the packaging shell 1 and are uniformly distributed along the axial direction of the packaging shell 1.
In some embodiments of the application, the first fan set 6 and the second fan set 10 each comprise two fans.
According to the application, the air in the environment is introduced into the packaging shell 1 through the first fan unit 6 and/or the second fan unit 10, and is mixed with the tail gas in the packaging shell 1, so that the water vapor in the tail gas is condensed and discharged, and the purpose of exhausting and removing water is realized.
The lower the ambient temperature, the more obvious the effect of using the first fan set 6 and/or the second fan set 10 to cool the water vapor in the exhaust gas, which is beneficial to the popularization of the fuel cell vehicle in the region with lower ambient temperature.
At the same time, the amount of water vapor discharged through the exhaust port 112 is reduced, and the amount of water vapor in the exhaust gas combined with pollutants in the air is also reduced, thereby reducing the harm to the physical health of the human body to some extent.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.
Computer-readable media include both permanent and non-permanent, removable and non-removable media, and information storage may be implemented by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above description is only illustrative of the preferred embodiments of the present application and the technical principles applied, and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. The scope of the present application is not limited to the specific combination of the above technical features, but also includes other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the present application. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Claims (8)
1. A fuel cell vehicle exhaust apparatus, characterized by comprising:
the silencer comprises an encapsulation shell (1), wherein an air inlet (111), an air outlet (112) and a water outlet (113) are arranged on the encapsulation shell (1), the water outlet (113) is positioned below the encapsulation shell, and a silencer (14) is encapsulated in the encapsulation shell (1);
the first temperature sensor (2) is arranged outside the packaging shell (1) and is used for collecting the ambient temperature;
the first humidity sensor (3) is arranged outside the packaging shell (1) and is used for collecting ambient humidity;
the second temperature sensor (4) is arranged at the air inlet (111) and is used for collecting the first tail gas temperature of the air inlet (111);
the second humidity sensor (5) is arranged at the air inlet (111) and is used for collecting the first tail gas humidity of the air inlet (111);
the first fan unit (6) is arranged in the packaging shell (1) and is positioned at the upstream of the silencer (14) and is used for cooling tail gas entering the packaging shell (1), and the air outlet direction of the first fan unit (6) faces the air outlet (112);
the controller (7) is in communication connection with the first temperature sensor (2), the first humidity sensor (3), the second temperature sensor (4) and the second humidity sensor (5), and the controller (7) is used for adjusting the air quantity of the first fan unit (6);
also comprises a third temperature sensor (8) and a third humidity sensor (9),
the third temperature sensor (8) is arranged at the exhaust port (112) and is used for collecting the second exhaust temperature of the exhaust port (112), the third temperature sensor (8) is in communication connection with the controller (7),
the third humidity sensor (9) is arranged at the exhaust port (112) and is used for collecting second tail gas humidity of the exhaust port (112), and the third humidity sensor (9) is in communication connection with the controller (7).
2. The fuel cell vehicle exhaust according to claim 1, further comprising a second fan set (10) disposed within the enclosure (1) downstream of the muffler (14) for cooling exhaust gases located within the enclosure (1), the second fan set (10) being in communication with the controller (7).
3. The fuel cell vehicle exhaust according to claim 2, further comprising a water deflector (11) provided in the package housing (1),
the water baffle plate (11) is positioned above the water outlet (113) and is positioned at the downstream of the second fan unit (10), water vapor in the tail gas collides with the water baffle plate (11) to form condensed water, and the formed condensed water is discharged from the water outlet (113).
4. A fuel cell vehicle exhaust according to claim 3, further comprising a condenser (12) provided in the package housing (1) for cooling water vapor in the exhaust gas, the condenser (12) being located upstream of the water deflector (11).
5. The fuel cell vehicle exhaust apparatus according to claim 1, further comprising a fourth temperature sensor (13) provided on the package housing (1) for collecting a drain temperature of the drain port (113),
the fourth temperature sensor (13) is in communication with the controller (7).
6. A control method of a fuel cell vehicle exhaust apparatus, characterized by being applied to the fuel cell vehicle exhaust apparatus according to any one of claims 1 to 5, comprising the steps of:
the first temperature sensor (2) collects the ambient temperature and transmits the ambient temperature to the controller (7), and the first humidity sensor (3) collects the ambient humidity and transmits the ambient humidity to the controller (7);
the second temperature sensor (4) collects the first exhaust gas temperature of the exhaust gas of the air inlet (111) of the packaging shell (1) and transmits the first exhaust gas temperature to the controller (7), and the second humidity sensor (5) collects the first exhaust gas humidity of the exhaust gas of the air inlet (111) and transmits the first exhaust gas humidity to the controller (7);
the controller (7) obtains a first temperature difference between the ambient temperature and the first exhaust gas temperature and a first humidity difference between the ambient humidity and the first exhaust gas humidity according to the received ambient temperature, the first exhaust gas temperature, the ambient humidity and the first exhaust gas humidity,
if the first temperature difference and the first humidity difference meet a first condition for generating white air, the controller (7) regulates the air quantity of the first fan unit (6);
if the first temperature difference and the first humidity difference meet a second condition that white air is not generated, the controller (7) adjusts the air quantity of the first fan unit (6) to be smaller;
a third temperature sensor (8) collects the second exhaust gas temperature of an exhaust port (112) of the packaging shell (1) and transmits the second exhaust gas temperature to the controller (7), and a third humidity sensor (9) collects the second exhaust gas humidity of the exhaust port (112) and transmits the second exhaust gas humidity to the controller (7);
the controller (7) receives the second exhaust gas temperature and the second exhaust gas humidity, and obtains a second temperature difference between the ambient temperature and the second exhaust gas temperature, and a second humidity difference between the ambient humidity and the second exhaust gas humidity,
if the second temperature difference and the second humidity difference meet a third condition for generating white air, the controller (7) regulates the air quantity of the first fan unit (6);
the controller (7) adjusts the air volume of the first fan group (6) if the second temperature difference and the second humidity difference satisfy a fourth condition that white air is not generated.
7. The control method of the fuel cell vehicle exhaust apparatus according to claim 6, characterized by further comprising the step of:
if the air quantity of the first fan set (6) is maximum, the second temperature difference and the second humidity difference still meet a third condition for generating white air, and the controller (7) regulates the air quantity of the second fan set (10).
8. The control method of the fuel cell vehicle exhaust apparatus according to claim 7, characterized by further comprising the step of:
a fourth temperature sensor (13) collects the drain temperature of the drain outlet (113) of the packaging shell (1) and transmits the drain temperature to the controller (7);
the controller (7) receives the drain temperature,
the controller (7) reduces the air volume of the first fan set (6) and/or the second fan set (10) if the drain temperature is lower than the temperature at which icing occurs.
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| CN202111149410.9A CN113921982B (en) | 2021-09-29 | 2021-09-29 | Exhaust device of fuel cell vehicle and control method |
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