CN113285095A - Hydrogen humidifying device - Google Patents
Hydrogen humidifying device Download PDFInfo
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- CN113285095A CN113285095A CN202110825439.8A CN202110825439A CN113285095A CN 113285095 A CN113285095 A CN 113285095A CN 202110825439 A CN202110825439 A CN 202110825439A CN 113285095 A CN113285095 A CN 113285095A
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- hydrogen
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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
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
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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
- H01M8/04492—Humidity; Ambient humidity; Water content
- H01M8/045—Humidity; Ambient humidity; Water content of anode 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
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04828—Humidity; Water content
- H01M8/04835—Humidity; Water content of fuel cell reactants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention provides a hydrogen humidifying device, which comprises a hydrogen box body, a driving assembly, a humidifying layer and a detector, wherein the hydrogen box body is provided with a water inlet and a water outlet; one end of the hydrogen box body is provided with a hydrogen inlet which is used for being communicated with a hydrogen outlet of the hydrogen supply system, and the other end of the hydrogen box body is provided with a hydrogen outlet which is used for being communicated with a hydrogen inlet of the engine electric pile; the detector is arranged in the cavity of the hydrogen box body and used for detecting the hydrogen humidity in the cavity, and the driving component is arranged in the cavity and used for driving the humidification layer to enter and exit the cavity; when the detector detects that the humidity of the hydrogen in the cavity is in a required range, the driving assembly drives the humidifying layer to be positioned outside the cavity; when the detector detects that the humidity of the hydrogen in the cavity is smaller than the minimum value of the required range, the driving assembly drives the humidifying layer to enter the cavity, and the humidity of the humidified hydrogen is within the required range. It can be seen that the present invention achieves control of the humidity of the hydrogen entering the engine stack.
Description
Technical Field
The invention relates to the technical field of hydrogen fuel cell engines, in particular to a hydrogen humidifying device.
Background
At present, most fuel cell engines only have air supply systems with humidifiers, and hydrogen supply systems have no humidification or only internal humidification, the internal humidification not only can lead to the performance of the fuel cell to be reduced quickly and the reliability to be poor, the hydrogen discharge frequency is also high, the hydrogen utilization is not facilitated, and the hydrogen circulation pump is utilized to circularly discharge hydrogen containing a very small amount of water vapor for humidification, so that the requirement of hydrogen humidity control cannot be met frequently.
Therefore, how to control the humidity of hydrogen is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a hydrogen humidifying device, which can control the humidity of hydrogen.
In order to achieve the purpose, the invention provides the following technical scheme:
a hydrogen humidifying device comprises a hydrogen box body, a driving assembly, a humidifying layer and a detector;
one end of the hydrogen box body is provided with a hydrogen inlet which is used for being communicated with a hydrogen outlet of a hydrogen supply system, and the other end of the hydrogen box body is provided with a hydrogen outlet which is used for being communicated with a hydrogen inlet of an engine electric pile;
the detector is arranged in a cavity of the hydrogen box body and used for detecting the hydrogen humidity in the cavity, and the driving assembly is arranged in the cavity and used for driving the humidifying layer to enter and exit the cavity;
when the detector detects that the humidity of the hydrogen in the cavity is within a required range, the driving assembly drives the humidifying layer to be located outside the cavity;
when the detector detects that the humidity of the hydrogen in the cavity is smaller than the minimum value of the required range, the driving assembly drives the humidifying layer to enter the cavity, and the humidity of the hydrogen is humidified to the required range.
In a specific embodiment, when the driving component drives the humidifying layer to enter the cavity, the humidifying layer divides the cavity along the direction from the hydrogen inlet to the hydrogen outlet of the hydrogen box.
In another specific embodiment, the humidifying layer at least comprises 2 layers, and the humidifying layers are arranged at intervals in sequence along the direction from the hydrogen inlet to the hydrogen outlet of the hydrogen box;
the number of the detectors is the same as the number of the humidifying layers, and the detectors are respectively arranged between the adjacent humidifying layers and are also arranged between the hydrogen inlet of the hydrogen box and the humidifying layer adjacent to the hydrogen inlet of the hydrogen box.
In another specific embodiment, the wetting layer is a layer of absorbent cotton;
the detector is a humidity sensor.
In another specific embodiment, the drive assembly comprises a telescoping rod and a spring in a compressed state;
a water collecting tank is arranged in the cavity, and the water collecting tank and the humidifying layer are in one-to-one correspondence;
the spring is installed in the water collecting groove, and the top end of the spring is connected with the bottom end of the humidifying layer;
the telescopic rod is telescopically arranged on the hydrogen box body, and the telescopic end of the telescopic rod is connected with the top end of the humidification layer;
when the telescopic rod extends out, the humidifying layer can be pushed into the water collecting groove;
when the telescoping rod is retracted, the humidification layer is deployed.
In another specific embodiment, the drive assembly further comprises a slider;
the slider can slide and install in the collection water tank, just the top of slider with the bottom on humidification layer is connected, the bottom of slider with the top butt of spring or connection.
In another specific embodiment, the drive assembly further comprises a fixed block;
the top of fixed block with the bottom of telescopic link is connected, the bottom of fixed block with the top of humidification layer is connected.
In another specific embodiment, the hydrogen humidification device further comprises a water pump;
the water collecting grooves are communicated, and the water pump is used for supplying water to the water collecting grooves.
In another specific embodiment, the hydrogen humidification device further comprises a water tank;
the outlet of the water tank is communicated with the inlet of the water pump, the outlet of the water pump is communicated with the water collecting groove, and the water collecting groove is communicated with the inlet of the water tank.
In another specific embodiment, the water tank is provided with a water filling port for adding water, and the water filling port is provided with a water filling cover;
and the water tank is also provided with a water injection port communicated with a tail discharge device of the fuel cell engine.
In another specific embodiment, the water filling port is communicated with a water filling device;
a water adding switch component for controlling the on-off of the water adding device is arranged in the water tank;
when the water level in the water tank is lower than the preset water level, the water adding switch assembly is switched on, and the water feeder is started to add water into the water tank.
In another specific embodiment, the water adding switch assembly comprises a floating plate, a first magnetic piece, a second magnetic piece and a control switch;
the floating plate floats on the water surface of the water tank, the first magnetic attraction piece is arranged at the bottom end of the floating plate, and the control switch is installed at the bottom end of the first magnetic attraction piece and is in signal connection with the water feeder;
the second magnetic attraction piece is arranged on the inner bottom wall of the water tank, and when the water level in the water tank is lower than a preset water level, the second magnetic attraction piece can attract the first magnetic attraction piece, so that the control switch controls the water feeder to feed water.
In another specific embodiment, the water addition switch assembly further comprises an alarm;
the alarm is in signal connection with the control switch, and when the control switch is switched on, the alarm gives an alarm.
The various embodiments according to the invention can be combined as desired, and the embodiments obtained after these combinations are also within the scope of the invention and are part of the specific embodiments of the invention.
According to the technical scheme, when the hydrogen humidifying device is used, the hydrogen inlet of the hydrogen box body is communicated with the hydrogen outlet of the hydrogen supply system, and the hydrogen outlet of the hydrogen box body is communicated with the hydrogen inlet of the engine galvanic pile; starting a hydrogen supply system, and inputting hydrogen into the hydrogen box body by the hydrogen supply system; when the detector detects that the humidity of the hydrogen in the cavity of the hydrogen box body is in a required range, the driving assembly drives the humidifying layer to the outside of the cavity, so that the hydrogen directly enters the engine stack from the hydrogen outlet of the hydrogen box body without being humidified by the humidifying layer; when the detector detects that the humidity of the hydrogen in the cavity of the hydrogen box body is smaller than the minimum value of the required range value, the driving assembly drives the humidifying layer to expand and enter the cavity of the hydrogen box body, and the humidity of the humidified hydrogen reaches the required range. It can be seen that the present invention achieves control of the humidity of the hydrogen entering the engine stack.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a hydrogen humidifying device provided by the present invention.
Wherein, in fig. 1:
the device comprises a hydrogen box body 1, a driving component 2, a humidifying layer 3, a detector 4, an expansion link 201, a spring 202, a water collecting groove 5, a sliding block 203, a fixed block 204, a water pump 6, a water tank 7, a water adding cover 701, a tail row device 8, a water adding switch component 9, a floating plate 901, a first magnetic attraction piece 902, a second magnetic attraction piece 903, a control switch 904, an air inlet pipe 10, an air outlet pipe 11, an water inlet pipe 12 and an water outlet pipe 13.
Detailed Description
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the position or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the present invention discloses a hydrogen humidifying device, which humidifies and controls the hydrogen supplied by a fuel cell hydrogen supply system before and during the start-up of a fuel cell engine to meet the hydrogen humidity value required by the fuel cell engine, so as to achieve the purpose of preventing the hydrogen from drying up and preventing the excessive humidification from flooding.
Wherein, hydrogen humidification device includes hydrogen box 1, drive assembly 2, humidification layer 3 and detector 4, specifically, hydrogen box 1 is the closed box, and the hydrogen entry has been seted up to the one end of hydrogen box 1 for with the hydrogen export intercommunication of hydrogen supply system. In order to facilitate the communication between the hydrogen inlet of the hydrogen tank 1 and the hydrogen outlet of the hydrogen supply system, an air inlet pipe 10 is installed at the hydrogen inlet of the hydrogen tank 1, and the air inlet pipe 10 is communicated with the hydrogen outlet of the hydrogen supply system. The air inlet pipe 10 may be integrally formed with the hydrogen tank 1, and may also be welded or detachably connected by a sealing member in a sealing manner, and the specific connection form is not limited.
The other end of the hydrogen box body 1 is provided with a hydrogen outlet which is used for being communicated with a hydrogen inlet of the engine galvanic pile. In order to facilitate the communication between the hydrogen outlet of the hydrogen box body 1 and the hydrogen inlet of the engine galvanic pile, the hydrogen outlet of the hydrogen box body 1 is provided with the gas outlet pipe 11, and the gas outlet pipe 11 is communicated with the hydrogen inlet of the engine galvanic pile. The outlet pipe 11 may be integrally formed with the hydrogen tank 1, and may also be welded or detachably connected by a sealing member in a sealing manner, and the specific connection form is not limited.
The hydrogen gas tank 1 is not limited in structure, and may have any shape, for example, a cylindrical tank, a rectangular tank, or the like.
Detector 4 installs in the cavity of hydrogen box 1 for detect the hydrogen humidity in the cavity, specifically, detector 4 is the humidity transducer that can detect hydrogen humidity.
The driving component 2 is arranged in the cavity and used for driving the humidifying layer 3 to enter and exit the cavity. The structure of the driving component 2 is not limited, and can be any structure capable of driving the humidification layer 3 to enter and exit the cavity. The hydrogen gas increases the humidity by passing through the humidification layer 3. Specifically, the humidifying layer 3 is a water absorbent cotton layer. It is understood that the humidifying layer 3 may also be a cloth layer with certain air permeability, etc.
When the detector 4 detects that the humidity of the hydrogen in the cavity is in a required range, the driving assembly 2 drives the humidification layer 3 to be positioned outside the cavity; when the detector 4 detects that the humidity of the hydrogen in the cavity is smaller than the minimum value of the required range, the driving assembly 2 drives the humidifying layer 3 to enter the cavity, and the humidity of the hydrogen is humidified to be within the required range.
The required range refers to a range that meets the hydrogen humidity requirement of the engine stack.
When the hydrogen humidifying device provided by the invention is used, the hydrogen inlet of the hydrogen box body 1 is communicated with the hydrogen outlet of a hydrogen supply system, and the hydrogen outlet of the hydrogen box body 1 is communicated with the hydrogen inlet of an engine galvanic pile; starting a hydrogen supply system, and inputting hydrogen into the hydrogen box body 1 by the hydrogen supply system; when the detector 4 detects that the humidity of the hydrogen in the cavity of the hydrogen box body 1 is in a required range, the driving component 2 drives the humidifying layer 3 to the outside of the cavity, so that the hydrogen directly enters the engine stack from a hydrogen outlet of the hydrogen box body 1 without being humidified by the humidifying layer 3; when the detector 4 detects that the humidity of the hydrogen in the cavity of the hydrogen box body 1 is smaller than the minimum value of the required range value, the driving component 2 drives the humidifying layer 3 to be unfolded and enter the cavity of the hydrogen box body 1, and the humidity of the humidified hydrogen reaches the required range. It can be seen that the present invention achieves control of the humidity of the hydrogen entering the engine stack.
In some embodiments, when the driving assembly 2 drives the humidification layer 3 into the chamber, the humidification layer 3 divides the chamber along the direction from the hydrogen inlet to the hydrogen outlet of the hydrogen tank 1. Specifically, the humidification layer 3 may be provided perpendicularly to the hydrogen gas flow direction, or may be provided obliquely to the hydrogen gas flow direction. The humidification layer 3 can divide the cavity, so that hydrogen can uniformly penetrate through the humidification layer 3 for humidification.
Furthermore, the invention discloses that the humidifying layer 3 at least comprises 2 layers, the humidifying layers 3 are sequentially arranged at intervals along the direction from the hydrogen inlet of the hydrogen box body 1 to the hydrogen outlet of the hydrogen box body 1, the number of the detectors 4 is the same as that of the humidifying layers 3, the detectors 4 are respectively arranged between the adjacent humidifying layers 3, and the detectors 4 are also arranged between the hydrogen inlet of the hydrogen box body 1 and the humidifying layers 3 adjacent to the hydrogen inlet of the hydrogen box body 1.
It is understood that the humidifying layer 3 may be only 1 layer, and the number of the humidifying layers 3 may be increased or decreased as needed. The first detector 4 detects the humidity of the hydrogen along the flowing direction of the hydrogen in the cavity of the hydrogen box body 1, when the humidity of the hydrogen is in a required range, the humidity of the hydrogen meets the use requirement, and at the moment, all the humidification layers 3 do not enter the cavity; when the first detector 4 detects that the humidity of the hydrogen is smaller than the minimum value of the required range, the humidity of the hydrogen is low, the use requirement is not met, and the humidity needs to be increased, at the moment, the driving assembly 2 drives the first humidification layer 3 to enter the cavity of the hydrogen box body 1; when hydrogen passes through the first humidification layer 3, the second detector 4 detects the humidity of the hydrogen, if the hydrogen is in a required range, the second humidification layer 3 and the humidification layer 3 behind the second humidification layer do not need to enter the cavity, if the hydrogen is still smaller than the minimum value of the required range, the driving component 2 drives the second humidification layer 3 to enter the cavity, and the rest is done in the same way until the humidity of the hydrogen is within the required range.
In some embodiments, the drive assembly 2 comprises a telescoping rod 201 and a spring 202, wherein the spring 202 is in a compressed state.
Install collection water tank 5 in the cavity, collection water tank 5 and humidification layer 3 one-to-one set up. Specifically, the water collection tank 5 may be integrally formed with the hydrogen tank 1, or may be detachably connected, and the specific connection form is not limited.
When the telescopic rod 201 extends out, the humidifying layer 3 can be pushed into the water collecting groove 5 to absorb water; when the telescopic rod 201 retracts, the humidifying layer 3 is driven to be unfolded under the combined action of the restoring force of the spring 202 and the telescopic rod 201.
Specifically, the telescopic rod 201 may be an electric push rod, or may be an air cylinder or a hydraulic cylinder, and the specific structure is not limited, and the telescopic structure is within the protection scope of the present invention.
In order to provide guidance for the humidifier, the driving assembly 2 further comprises a sliding block 203, the sliding block 203 can be slidably mounted in the water collecting groove 5, the top end of the sliding block 203 is connected with the bottom end of the humidifying layer 3, and the bottom end of the sliding block 203 is abutted against or connected with the top end of the spring 202. That is, the connection of the spring 202 to the humidification layer 3 is made by the slider 203. The sliding block 203 is limited in the water collecting tank 5, specifically, a limiting part for limiting the sliding block 203 is arranged at the top end of the water collecting tank 5, and the side wall of the sliding block 203 is in sliding fit with the groove wall of the water collecting tank 5.
Further, the invention discloses that the driving assembly 2 further comprises a fixing block 204, the top end of the fixing block 204 is connected with the bottom end of the telescopic rod 201, and the bottom end of the fixing block 204 is connected with the top end of the humidifying layer 3, specifically, the fixing block 204 is a long strip block, the length of the fixing block is equal to or slightly less than that of the humidifying layer 3, so that the problem that a gap exists between the humidifying layer 3 and the inner wall of the cavity due to the fact that two sides of the humidifying layer 3 incline downwards, and partial hydrogen penetrates through the gap, and humidification cannot be achieved is solved.
In some embodiments, the hydrogen humidifying device further comprises a water pump 6, the adjacent collecting water tanks 5 are communicated with each other, and the water pump 6 is used for supplying water to the collecting water tanks 5. Specifically, all the collection troughs 5 are arranged in series, and the water pump 6 delivers water into the collection troughs 5.
Of course, it is understood that the water pump 6 may be replaced by a water level difference, i.e. the water source is arranged at a height higher than the collecting sump 5, so that the water flow of the water source can directly enter the collecting sump 5.
In some embodiments, the hydrogen humidifying device further comprises a water tank 7, an outlet of the water tank 7 is communicated with an inlet of the water pump 6, an outlet of the water pump 6 is communicated with the water collecting tank 5, and the water collecting tank 5 is communicated with an inlet of the water tank 7. The water tank 7 is arranged to provide a water source for the water collecting tank 5 on one hand and facilitate the water in the water collecting tank 5 to flow back into the water tank 7 on the other hand.
Further, the invention discloses that a water filling opening is formed in the water tank 7 and used for adding water. Specifically, the number of the filler is not limited, and only 1 filler may be provided, or 2 or more than 2 fillers may be provided. In order to facilitate the water feeding into the water tank 7, the water feeding port is arranged as a bell mouth.
In order to avoid impurities and the like from entering the water tank 7, the invention discloses that a water filling port is provided with a water filling cover 701, and particularly, the water filling cover 701 can be in threaded connection with the water filling port or in buckled connection with the water filling port.
Furthermore, the invention discloses that a water injection port communicated with a tail exhaust device 8 of a fuel cell engine is also arranged on the water tank 7. Specifically, water in the tail gas discharge device 8 is filtered by a filter, and gas-liquid separation is performed by a gas-liquid separator, and the obtained water is injected into the water tank 7. Realizes the reutilization of the water discharged by the tail discharge device 8 and saves water resources.
In some embodiments, the water filling port is communicated with a water filling device, and water is filled into the water tank 7 through the water filling device.
A water adding switch component 9 for controlling the on-off of the water adding device is arranged in the water tank 7 so as to ensure that the water tank 7 is always kept in a state of sufficient water and ensure the continuous supply of water required by humidification.
When the water level in the water tank 7 is lower than the preset water level, the water adding switch component 9 is switched on, and the water adding device starts the water supply tank 7 to add water. The preset water level refers to a water level at which water in the water tank 7 does not meet use requirements, and can be specifically set as required.
Specifically, the invention discloses a water adding switch assembly 9, which comprises a floating plate 901, a first magnetic part 902, a second magnetic part 903 and a control switch 904, wherein the floating plate 901 floats on the water surface of the water tank 7, and the floating plate 901 is provided with a plurality of through holes.
First magnetism is inhaled piece 902 and is set up in the bottom of kickboard 901, and control switch 904 is installed in the bottom of first magnetism and is inhaled piece 902, and with water feeder signal connection.
The second magnetic attraction 903 is arranged on the inner bottom wall of the water tank 7, and when the water level in the water tank 7 is lower than the preset water level, the second magnetic attraction 903 can attract the first magnetic attraction 902, so that the control switch 904 controls the water adding device to add water.
Specifically, one of the first magnetic element 902 and the second magnetic element 903 is a magnet, the other is an iron block, the magnet may be a permanent magnet, or an iron block that generates magnetism after being electrified, and it should be noted that both the first magnetic element 902 and the second magnetic element 903 may be magnets.
In some embodiments, the water adding switch assembly 9 further comprises an alarm in signal connection with the control switch 904, and when the control switch 904 is turned on, the alarm gives an alarm to remind a user to add water into the water tank 7.
Taking the number of the humidifying layers 3 as 3, the humidifying layers 3 as the absorbent cotton layers, the hydrogen supply system comprises a hydrogen bottle, a switch valve, a pressure regulating valve and a check valve, and the fuel cell control unit of the fuel cell engine is respectively connected with the telescopic rod 201 and the detector 4 by signals. When the hydrogen humidifying device is used, a hydrogen humidity value range is set in a fuel cell control unit of a fuel cell engine, then, the fuel cell engine is operated, and hydrogen enters a switching valve, a pressure regulating valve and a check valve from a hydrogen bottle and then enters an air inlet pipe 10; then, get into hydrogen box 1, this moment, the humidity value of detector 4 detection hydrogen, if humidity is in the within range that fuel cell control unit set up, then, 3 telescopic links 201 fixed on hydrogen box 1 are all stretched out, fixed block 204 and the cotton layer downstream that absorbs water, and spring 202 downstream also can be pressed to slider 203, until the cotton layer that absorbs water all gets into to collect in the basin 5 and absorb water, and at this moment, hydrogen does not directly discharge by outlet duct 11 through the cotton layer that absorbs water, gets into in the pile. Along the circulation direction of hydrogen in hydrogen box 1, when 1 st detector 4 detects humidity and is less than the minimum of requirement scope, 1 st telescopic link 201 can contract, the cotton layer that absorbs water can expand under spring 202's effect, at this moment, hydrogen can absorb water the cotton through the 1 st and carry out the humidification, hydrogen after the humidification can detect through 2 nd detector 4, if still not requiring the within range, then can absorb water the cotton layer through the 2 nd and carry out the humidification, loop through the 3 rd cotton layer that absorbs water and carry out the humidification, accomplish until the humidification. Part of the water used for humidification is filtered by a tail discharge device 8 of the fuel cell engine, and water is discharged through gas-water separation, and the other part of the water is added through a water adding port. Water is pumped into a water inlet pipe 12 by a water pump 6 through a water tank 7, then sequentially enters 3 water collecting grooves 5 for circulation, and finally returns to the water tank 7 through a water outlet pipe 13. Be equipped with porous kickboard 901 in the water tank 7, float in water tank 7, when the water level is lower, kickboard 901 can sink, and when sinking first magnetism piece 902 and second magnetism piece 903 of inhaling mutually, can open control switch 904 to the alarm can report to the police, reminds to add water in the water tank 7.
The invention has the following advantages:
(1) the humidification and the non-humidification are continuously switched by detection, so that the hydrogen is always kept in a humid state, and the hydrogen humidity requirement of the fuel cell engine is met;
(2) the first magnetic part 902, the second magnetic part 903 and the control switch 904 are arranged in the water tank 7, so that the water tank 7 is always kept in a sufficient water state, and the continuous supply of water required by humidification is ensured;
(3) the water discharged by the tail discharge device 8 is separated and filtered and then is reused, so that water resources are saved.
It should be noted that, in the present specification, words indicating orientation, such as upper and lower, are set forth in the direction of fig. 1, and are used for convenience of description only, and have no other specific meanings.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (13)
1. A hydrogen humidifying device is characterized by comprising a hydrogen box body, a driving assembly, a humidifying layer and a detector;
one end of the hydrogen box body is provided with a hydrogen inlet which is used for being communicated with a hydrogen outlet of a hydrogen supply system, and the other end of the hydrogen box body is provided with a hydrogen outlet which is used for being communicated with a hydrogen inlet of an engine electric pile;
the detector is arranged in a cavity of the hydrogen box body and used for detecting the hydrogen humidity in the cavity, and the driving assembly is arranged in the cavity and used for driving the humidifying layer to enter and exit the cavity;
when the detector detects that the humidity of the hydrogen in the cavity is within a required range, the driving assembly drives the humidifying layer to be located outside the cavity;
when the detector detects that the humidity of the hydrogen in the cavity is smaller than the minimum value of the required range, the driving assembly drives the humidifying layer to enter the cavity, and the humidity of the hydrogen is humidified to the required range.
2. The hydrogen humidification device of claim 1 wherein the humidification layer divides the chamber in a direction from a hydrogen inlet to a hydrogen outlet of the hydrogen tank when the drive assembly drives the humidification layer into the chamber.
3. The hydrogen humidifying device according to claim 1, wherein the humidifying layer comprises at least 2 layers, and the humidifying layers are arranged at intervals in sequence along a direction from a hydrogen inlet to a hydrogen outlet of the hydrogen tank;
the number of the detectors is the same as the number of the humidifying layers, and the detectors are respectively arranged between the adjacent humidifying layers and are also arranged between the hydrogen inlet of the hydrogen box and the humidifying layer adjacent to the hydrogen inlet of the hydrogen box.
4. The hydrogen humidifying device according to claim 1, wherein the humidifying layer is a water absorbent cotton layer;
the detector is a humidity sensor.
5. The hydrogen humidification device of claim 1 wherein the drive assembly comprises a telescopic rod and a spring in a compressed state;
a water collecting tank is arranged in the cavity, and the water collecting tank and the humidifying layer are in one-to-one correspondence;
the spring is installed in the water collecting groove, and the top end of the spring is connected with the bottom end of the humidifying layer;
the telescopic rod is telescopically arranged on the hydrogen box body, and the telescopic end of the telescopic rod is connected with the top end of the humidification layer;
when the telescopic rod extends out, the humidifying layer can be pushed into the water collecting groove;
when the telescoping rod is retracted, the humidification layer is deployed.
6. The hydrogen humidification device of claim 5 wherein the drive assembly further comprises a slider;
the slider can slide and install in the collection water tank, just the top of slider with the bottom on humidification layer is connected, the bottom of slider with the top butt of spring or connection.
7. The hydrogen humidification device of claim 5 wherein the drive assembly further comprises a fixed block;
the top of fixed block with the bottom of telescopic link is connected, the bottom of fixed block with the top of humidification layer is connected.
8. A hydrogen humidification device as claimed in any one of claims 5 to 7 further comprising a water pump;
the water collecting grooves are communicated, and the water pump is used for supplying water to the water collecting grooves.
9. The hydrogen humidifying device according to claim 8, further comprising a water tank;
the outlet of the water tank is communicated with the inlet of the water pump, the outlet of the water pump is communicated with the water collecting groove, and the water collecting groove is communicated with the inlet of the water tank.
10. The hydrogen humidifying device according to claim 9, wherein a water filling port is formed on the water tank for filling water, and a water filling cover is mounted on the water filling port;
and the water tank is also provided with a water injection port communicated with a tail discharge device of the fuel cell engine.
11. The hydrogen humidification device of claim 10, wherein the water filler is in communication with a water filler;
a water adding switch component for controlling the on-off of the water adding device is arranged in the water tank;
when the water level in the water tank is lower than the preset water level, the water adding switch assembly is switched on, and the water feeder is started to add water into the water tank.
12. The hydrogen humidifying device according to claim 11, wherein the water adding switch assembly comprises a floating plate, a first magnetic piece, a second magnetic piece and a control switch;
the floating plate floats on the water surface of the water tank, the first magnetic attraction piece is arranged at the bottom end of the floating plate, and the control switch is installed at the bottom end of the first magnetic attraction piece and is in signal connection with the water feeder;
the second magnetic attraction piece is arranged on the inner bottom wall of the water tank, and when the water level in the water tank is lower than a preset water level, the second magnetic attraction piece can attract the first magnetic attraction piece, so that the control switch controls the water feeder to feed water.
13. The hydrogen humidification device of claim 12 wherein the water addition switch assembly further comprises an alarm;
the alarm is in signal connection with the control switch, and when the control switch is switched on, the alarm gives an alarm.
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| CN202110825439.8A CN113285095B (en) | 2021-07-21 | 2021-07-21 | Hydrogen humidifying device |
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| CN202110825439.8A CN113285095B (en) | 2021-07-21 | 2021-07-21 | Hydrogen humidifying device |
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| CN113285095B CN113285095B (en) | 2021-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115911461A (en) * | 2023-02-16 | 2023-04-04 | 四川能投氢能产业投资有限公司 | Hydrogen fuel cell automobile drainage device and method |
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| CN113285095B (en) | 2021-11-19 |
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