CN115000474A - Air-cooled hydrogen fuel cell tail gas treatment system and air-cooled hydrogen fuel cell system - Google Patents
Air-cooled hydrogen fuel cell tail gas treatment system and air-cooled hydrogen fuel cell system Download PDFInfo
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- CN115000474A CN115000474A CN202210770015.0A CN202210770015A CN115000474A CN 115000474 A CN115000474 A CN 115000474A CN 202210770015 A CN202210770015 A CN 202210770015A CN 115000474 A CN115000474 A CN 115000474A
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 206
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 206
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 200
- 239000007789 gas Substances 0.000 title claims abstract description 111
- 239000000446 fuel Substances 0.000 title claims abstract description 65
- 239000007788 liquid Substances 0.000 claims description 56
- 238000000926 separation method Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 48
- 238000009825 accumulation Methods 0.000 abstract description 8
- 150000002431 hydrogen Chemical class 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 description 20
- 239000012535 impurity Substances 0.000 description 19
- 238000004891 communication Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 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
- 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
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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
- H01M8/04291—Arrangements for managing water in solid electrolyte fuel cell systems
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention discloses an air-cooled hydrogen fuel cell tail gas treatment system, an air-cooled hydrogen fuel cell system and equipment. The air-cooled hydrogen fuel cell tail gas treatment system can improve the utilization rate of hydrogen, simultaneously avoids water accumulation of a galvanic pile, and has the advantages of simple structure, small weight, small volume and low system power consumption.
Description
Technical Field
The invention relates to the technical field of air-cooled hydrogen fuel cells, in particular to an air-cooled hydrogen fuel cell tail gas treatment system, an air-cooled hydrogen fuel cell system and equipment.
Background
The air-cooled hydrogen fuel cell is a power generation device which adopts air as a cooling medium and an oxidant, hydrogen as a fuel and air and hydrogen generate electrochemical reaction, has the advantages of simple system structure, light weight, rapid power supply reaction, cleanness, no pollution and the like, and is widely popularized and applied in the field of low-power supplies.
In the power generation process of the air-cooled hydrogen fuel cell, hydrogen can not be completely consumed, and residual hydrogen in reaction tail gas is discharged to the atmospheric environment, so that the waste of hydrogen fuel is caused, and the problem of low hydrogen utilization rate exists.
The related art provides a fuel cell stack hydrogen tail gas treatment system to output hydrogen in tail gas to a reflux pump again after purification, so as to recycle hydrogen, however, the fuel cell stack hydrogen tail gas treatment system in the related art has a complex structure, large weight, large volume and large system power consumption, and is not suitable for being applied to an air cooling stack with high requirements on volume, weight and system power consumption.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the embodiment of the invention provides an air-cooled hydrogen fuel cell tail gas treatment system, which can improve the utilization rate of hydrogen, avoid water accumulation in a galvanic pile, and has the advantages of simple structure, light weight, small volume and low system power consumption.
The embodiment of the invention also provides an air-cooling type hydrogen fuel cell system.
The embodiment of the invention also provides equipment.
The air-cooled hydrogen fuel cell tail gas treatment system of the embodiment of the invention comprises: a galvanic pile; the inlet of the gas-liquid separation device is communicated with a tail gas outlet pipeline of the galvanic pile; the hydrogen buffer tank, the hydrogen buffer tank has air inlet and discharge port, the air inlet pass through communicating pipe with gas-liquid separation device's export intercommunication, the discharge port can be opened and closed.
The air-cooled hydrogen fuel cell tail gas treatment system of the embodiment of the invention has the advantages that the gas-liquid separation device is communicated with the electrically-pushed tail gas outlet pipeline, the hydrogen buffer tank is communicated with the outlet of the gas-liquid separation device, and the hydrogen buffer tank is provided with the discharge port, therefore, as the unreacted hydrogen continuously flows into the hydrogen buffer tank, the pressure in the hydrogen buffer tank is increased, the pressure difference between the hydrogen buffer tank and the hydrogen buffer tank is reduced, the hydrogen flow rate is gradually reduced until the pressure difference is reduced to zero, the hydrogen which does not participate in the reaction at the tail part is forced to be gathered in the electric pile to continue to participate in the reaction, as the reaction is carried out, the partial pressure of impurity gas and water vapor is continuously increased, the impurity gas and the water vapor carrying liquid water can be smoothly discharged from the anode tail gas discharge port, the gas-liquid separation device can absorb the liquid water, the impurity gas and the water vapor enter the hydrogen buffer tank to be condensed and deposited, and can be finally discharged from the discharge port of the hydrogen buffer tank, so that the electric pile is prevented from water accumulation, the utilization rate of hydrogen is improved to the maximum extent. And the air-cooled hydrogen fuel cell tail gas processing system of this application compares in traditional tail gas treatment scheme, need not to set up structures such as circulating pump and return line, simple structure, and weight, volume and system consumption are little.
In some embodiments, the air-cooled hydrogen fuel cell tail gas treatment system further comprises a first control valve disposed on the tail gas outlet pipeline, and a controller connected to the first exhaust valve to control the first control valve to open or close the tail gas outlet pipeline.
In some embodiments, the air-cooled hydrogen fuel cell tail gas treatment system further comprises a second control valve disposed at the exhaust port, and the controller is in communication with the second control valve to control opening and closing of the exhaust port.
In some embodiments, the air-cooled hydrogen fuel cell tail gas treatment system further comprises a liquid level meter disposed in the hydrogen buffer tank for detecting a liquid level in the hydrogen buffer tank, and the controller may control the second control valve to operate according to detection information of the liquid level meter.
The air-cooled hydrogen fuel cell tail gas treatment system of the embodiment of the invention comprises: a galvanic pile; the hydrogen buffer tank, the hydrogen buffer tank has air inlet and discharge port, just be equipped with the fin on the outer wall of hydrogen buffer tank, the air inlet with the tail gas outlet pipe intercommunication of pile, the discharge port can be opened and closed.
According to the air-cooled hydrogen fuel cell tail gas treatment system provided by the embodiment of the invention, the hydrogen buffer tank is communicated with the tail gas outlet pipeline, the radiating fins are arranged on the outer wall of the hydrogen buffer tank, the pressure in the hydrogen buffer tank is increased along with the continuous flow of unreacted hydrogen into the hydrogen buffer tank, the pressure difference between the hydrogen buffer tank and the hydrogen buffer tank is reduced, the hydrogen flow rate is gradually reduced until the pressure difference is reduced to zero, the hydrogen with the tail part not participating in the reaction is forced to be gathered in the electric pile to continue to participate in the reaction, and the hydrogen utilization rate is improved. In addition, the radiating fins can quickly cool and condense the water vapor in the hydrogen buffer tank, so that the pressure difference between the hydrogen buffer tank and a tail gas outlet pipeline is increased, the water vapor carrying liquid water and impurity gas can be ensured to completely flow into the hydrogen buffer tank, and water accumulation of a galvanic pile is avoided.
In some embodiments, the hydrogen buffer tank is communicated with the tail gas outlet pipeline through a communicating pipe, and a radiating fin is arranged at the connecting end of the communicating pipe and the hydrogen buffer tank.
The air-cooled hydrogen fuel cell tail gas treatment system of the embodiment of the invention comprises: a galvanic pile; the hydrogen buffer tank, the hydrogen buffer tank has air inlet and discharge port, the discharge port can be opened and closed, the air inlet through communicating pipe with the tail gas outlet pipeline intercommunication of galvanic pile, just be equipped with the heating member on the outer wall of communicating pipe.
According to the air-cooled hydrogen fuel cell tail gas treatment system provided by the embodiment of the invention, the hydrogen buffer tank is communicated with the tail gas outlet pipeline through the communicating pipe, the communicating pipe is provided with the heating element, the pressure in the hydrogen buffer tank is increased along with the continuous flow of unreacted hydrogen into the hydrogen buffer tank, the pressure difference between the hydrogen buffer tank and the hydrogen buffer tank is reduced, the hydrogen flow rate is gradually reduced until the pressure difference is reduced to zero, the hydrogen with the tail part not participating in the reaction is forced to be gathered in the galvanic pile to continue to participate in the reaction, and the hydrogen utilization rate is improved. In addition, the heating element can heat the communicating pipe to vaporize liquid water discharged by the galvanic pile into water vapor, and the water vapor and the original impurity gas are mixed to flow to the hydrogen buffer tank together, so that water accumulation of the galvanic pile is avoided.
The air-cooling hydrogen fuel cell system of the embodiment of the invention comprises the air-cooling hydrogen fuel cell tail gas treatment system of the embodiment.
According to the air-cooled hydrogen fuel cell system disclosed by the embodiment of the invention, the system structure is simple and the power consumption is low by adopting the air-cooled hydrogen fuel cell tail gas treatment system.
The apparatus of the embodiment of the present invention includes the air-cooling type hydrogen fuel cell system described in the above embodiment.
The equipment of the embodiment of the invention has small volume and light weight by adopting the air-cooled hydrogen fuel cell system.
Drawings
Fig. 1 is a schematic structural view of an air-cooling type hydrogen fuel cell system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an air-cooled hydrogen fuel cell exhaust gas treatment system according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of an air-cooling type hydrogen fuel cell off-gas treatment system according to another embodiment of the present invention.
Reference numerals:
the gas-liquid separation device comprises a galvanic pile 1, a gas-liquid separation device 2, a hydrogen buffer tank 3, a gas storage tank 4, a communicating pipe 41, a radiating fin 43, a controller 5, a first control valve 6, a second control valve 7 and a liquid level meter 8.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 and 2, the air-cooled hydrogen fuel cell off-gas treatment system according to the embodiment of the present invention includes a stack 1, a gas-liquid separation device 2, and a hydrogen buffer tank 3.
Specifically, the inlet of the gas-liquid separation device 2 is communicated with the tail gas outlet pipe of the cell stack 1, and the hydrogen buffer tank 3 has a gas inlet which is communicated with the outlet of the gas-liquid separation device 2 through a communicating pipe 41 and a discharge port which can be opened and closed.
It should be noted that, when tail gas is discharged through the tail gas outlet pipeline, the hydrogen mixed in the tail gas flows towards the hydrogen buffer tank 3, and along with the continuous entering of hydrogen, the pressure difference between the two is gradually reduced, and the flow rate of hydrogen towards the buffer tank is continuously slowed down until the pressure difference is zero, so as to reach a balance state, and the hydrogen with the tail part not participating in the reaction is forced to gather in the galvanic pile 1 to continuously participate in the reaction, so that the hydrogen utilization rate is improved.
And along with electric pile 1 constantly produces vapor and magazine gas, vapor and foreign gas partial pressure improve, carry the foreign gas and the vapor of liquid water and can get into gas-liquid separation device 2, liquid water is absorbed, vapor and foreign gas continue to get into hydrogen buffer tank 3.
That is to say, along with the going on of battery reaction, hydrogen buffer tank 3 can slow down the exhaust velocity of unreacted hydrogen, makes it can make full use of, utilizes the continuous increase of partial pressure of gaseous impurity and vapor simultaneously, makes the gaseous impurity and the vapor that carry liquid water can follow positive pole tail gas exhaust port and discharge smoothly to when can avoiding 1 ponding of galvanic pile, the maximize improves the utilization ratio of hydrogen.
In addition, the vapor in the hydrogen buffer tank 3 can condense into water beads to drop at the bottom of the buffer tank along with the temperature reduction, and the concentration of the impurity gas at the bottom of the buffer tank is higher because the molecular weight of the impurity gas is larger than that of the hydrogen, so that the discharge port can be opened to discharge liquid water and the impurity gas.
In the air-cooled hydrogen fuel cell tail gas treatment system of the embodiment of the invention, the gas-liquid separation device 2 is communicated with the electrically-pushed tail gas outlet pipeline, the hydrogen buffer tank 3 is communicated with the outlet of the gas-liquid separation device 2, and the hydrogen buffer tank 3 is provided with the discharge port, therefore, as the unreacted hydrogen continuously flows into the hydrogen buffer tank 3, the pressure in the hydrogen buffer tank 3 is increased, the pressure difference between the unreacted hydrogen and the hydrogen is reduced, the hydrogen flow rate is gradually reduced until the pressure difference is reduced to zero, the hydrogen with the tail part not participating in the reaction is forced to gather in the electric pile 1 to continuously participate in the reaction, as the reaction progresses, the partial pressure of impurity gas and water vapor is continuously increased, the impurity gas and the water vapor carrying liquid water can be smoothly discharged from the anode tail gas discharge port, the gas-liquid separation device 2 can absorb the liquid water, the impurity gas and the water vapor enter the hydrogen buffer tank 3 to be condensed and deposited, and finally can be discharged from the discharge port of the hydrogen buffer tank 3, therefore, the utilization rate of hydrogen is improved to the maximum extent while water accumulation of the galvanic pile 1 is avoided. And the air-cooled hydrogen fuel cell tail gas processing system of this application compares in traditional tail gas treatment scheme, need not to set up structures such as circulating pump and return line, simple structure, and weight, volume and system consumption are little.
For easy understanding, as shown in fig. 1, the operation of the entire fuel cell system includes: the controller 5 sends out an instruction, hydrogen enters the galvanic pile 1 from the gas storage tank 4 through a pressure reducing valve and an air inlet valve and is subjected to an electrochemical reaction with air entering the galvanic pile 1 under the pushing of a fan, residual tail gas of a hydrogen side reaction is discharged to a gas-liquid separator through a tail gas outlet pipeline, the tail gas comprises residual hydrogen and water vapor, impurity gas and liquid water generated by the reaction, the gas-liquid separator can absorb the liquid water, and the tail gas flows into the hydrogen buffer tank 3 through a communicating pipe 41 after flowing through the gas-liquid separator 2.
Further, as shown in fig. 1 and fig. 2, the air-cooled hydrogen fuel cell exhaust gas treatment system further includes a first control valve 6, a second control valve 7, and a controller 5, the first control valve 6 is disposed on the exhaust gas outlet pipeline, the controller 5 is connected to the first exhaust valve to control the first control valve 6 to open or close the exhaust gas outlet pipeline, the second control valve 7 is disposed at the exhaust outlet, and the controller 5 is communicated with the second control valve 7 to control the exhaust outlet to open or close.
Therefore, the controller 5 can control the first exhaust valve to realize intermittent exhaust, and simultaneously control the exhaust port to regularly exhaust liquid water and impurity gas in the hydrogen buffer tank 3, so as to ensure long-term operation of the whole air-cooled hydrogen fuel cell exhaust treatment system.
Further, as shown in fig. 2, the air-cooled hydrogen fuel cell tail gas treatment system further includes a liquid level meter 8, the liquid level meter 8 is disposed in the hydrogen buffer tank 3 for detecting a liquid level in the hydrogen buffer tank 3, and the controller 5 can control the second control valve 7 to operate according to detection information of the liquid level meter 8.
In the treatment of the liquid water discharged from the cell stack 1, the gas-liquid separation device 2 is not limited to be provided between the hydrogen buffer tank 3 and the cell stack 1, and the liquid water may be discharged from the discharge port by being introduced into the hydrogen buffer tank 3 if it is ensured that the liquid water does not stay in the pipe.
The present application provides another embodiment for a technical solution without a gas-liquid separation device 2, and specifically, as shown in fig. 3, an air-cooled hydrogen fuel cell tail gas treatment system according to another embodiment of the present invention includes a stack 1 and a hydrogen buffer tank 3, the hydrogen buffer tank 3 has a gas inlet and a discharge outlet, and a heat dissipation fin 43 is disposed on an outer wall of the hydrogen buffer tank 3, the gas inlet is communicated with a tail gas outlet pipeline of the stack 1, and the discharge outlet can be opened and closed.
It can be understood that the tail gas that fuel cell produced has higher temperature, because be equipped with fin 43 on the outer wall of hydrogen buffer tank 3, then the tail gas that flows into hydrogen buffer tank 3 can cool off fast and condense, and the pressure differential of increase hydrogen buffer tank 3 and tail gas outlet pipe guarantees to carry during vapor and the foreign gas of liquid water can flow into hydrogen buffer tank 3 completely, avoids the not enough problem that leads to liquid water to be detained in communicating pipe 41 of pressure differential.
It should be noted that the hydrogen choked flow in this embodiment is also achieved by utilizing the equilibrium pressure difference of the hydrogen buffer tank 3, and is not described herein.
According to the air-cooled hydrogen fuel cell tail gas treatment system provided by the embodiment of the invention, the hydrogen buffer tank 3 is communicated with the tail gas outlet pipeline, the radiating fins 43 are arranged on the outer wall of the hydrogen buffer tank 3, the pressure in the hydrogen buffer tank 3 is increased along with the continuous flow of unreacted hydrogen into the hydrogen buffer tank 3, the pressure difference between the unreacted hydrogen and the hydrogen buffer tank is reduced, the hydrogen flow rate is gradually reduced until the pressure difference is reduced to zero, hydrogen with the tail part not participating in reaction is forced to be gathered in the electric pile 1 to continuously participate in the reaction, and the hydrogen utilization rate is improved. In addition, the radiating fins 43 can quickly cool and condense the water vapor in the hydrogen buffer tank 3, so that the pressure difference between the hydrogen buffer tank 3 and a tail gas outlet pipeline is increased, the water vapor carrying liquid water and impurity gas can be ensured to completely flow into the hydrogen buffer tank 3, and water accumulation of the electric pile 1 is avoided.
Preferably, the hydrogen buffer tank 3 is communicated with the tail gas outlet pipeline through a communicating pipe 41, and a radiating fin 43 is arranged at the connecting end of the communicating pipe 41 and the hydrogen buffer tank 3.
It is to be understood that the liquid water can be pressed into the hydrogen buffer tank 3 by increasing the pressure difference without providing the gas-liquid separation device 2, and the implementation of such a pressurization flow control is not limited to providing the cooling fins 43.
For example, the air-cooled hydrogen fuel cell exhaust gas treatment system according to another embodiment of the present invention includes a stack 1 and a hydrogen buffer tank 3, the hydrogen buffer tank 3 has an inlet and an outlet, the outlet can be opened and closed, the inlet is communicated with an exhaust gas outlet pipe of the stack 1 through a communicating pipe 41, and a heating member is provided on an outer wall of the communicating pipe 41.
It can be understood that, by providing the heating member on the outer wall of the communicating pipe 41, the communicating pipe 41 can be heated by the heating member to vaporize the liquid water discharged from the cell stack 1 into water vapor, and the original impurity gas and the water vapor are mixed to flow to the hydrogen buffer tank 3 together. And the liquid water is vaporized to increase the pressure in the communicating pipe 41, and the pressure difference between the hydrogen buffer tank 3 and the communicating pipe 41 is relatively increased, so that the impurity gas and the water vapor are utilized to flow toward the hydrogen buffer tank 3.
It should be noted that the hydrogen choked flow in this embodiment is also achieved by utilizing the equilibrium pressure difference of the hydrogen buffer tank 3, and is not described herein.
According to the air-cooled hydrogen fuel cell tail gas treatment system provided by the embodiment of the invention, the hydrogen buffer tank 3 is communicated with the tail gas outlet pipeline through the communicating pipe 41, the communicating pipe 41 is provided with the heating element, the pressure in the hydrogen buffer tank 3 is increased along with the continuous flow of unreacted hydrogen into the hydrogen buffer tank 3, the pressure difference between the unreacted hydrogen and the hydrogen buffer tank is reduced, the hydrogen flow rate is gradually reduced until the pressure difference is reduced to zero, the hydrogen with the tail part not participating in the reaction is forced to gather in the electric pile 1 to continuously participate in the reaction, and the hydrogen utilization rate is improved. In addition, the heating element can heat the communicating pipe 41 to vaporize the liquid water discharged by the galvanic pile 1 into steam, and the mixed original impurity gas and the steam flow to the hydrogen buffer tank 3 together, so that water accumulation of the galvanic pile 1 is avoided.
The air-cooled hydrogen fuel cell system of the embodiment of the invention comprises the tail gas treatment system of the air-cooled hydrogen fuel cell of the embodiment.
According to the air-cooled hydrogen fuel cell system disclosed by the embodiment of the invention, the system structure is simple and the power consumption is low by adopting the air-cooled hydrogen fuel cell tail gas treatment system.
An apparatus of an embodiment of the present invention includes the air-cooling type hydrogen fuel cell system of the above-described embodiment.
The equipment of the embodiment of the invention has small volume and light weight by adopting the air-cooled hydrogen fuel cell system.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used 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 defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. An air-cooled hydrogen fuel cell tail gas treatment system, comprising:
a galvanic pile;
the inlet of the gas-liquid separation device is communicated with a tail gas outlet pipeline of the galvanic pile;
the hydrogen buffer tank, the hydrogen buffer tank has air inlet and discharge port, the air inlet pass through communicating pipe with gas-liquid separation device's export intercommunication, the discharge port can be opened and closed.
2. The air-cooled hydrogen fuel cell tail gas treatment system according to claim 1, further comprising a first control valve and a controller, wherein the first control valve is arranged on the tail gas outlet pipeline, and the controller is connected with the first exhaust valve to control the first control valve to open or close the tail gas outlet pipeline.
3. The air-cooled hydrogen fuel cell tail gas treatment system according to claim 2, further comprising a second control valve provided at the discharge port, the controller communicating with the second control valve to control opening and closing of the discharge port.
4. The air-cooled hydrogen fuel cell off-gas treatment system according to claim 3, further comprising a liquid level meter provided in the hydrogen buffer tank for detecting a liquid level in the hydrogen buffer tank, wherein the controller controls the second control valve to operate according to detection information of the liquid level meter.
5. An air-cooled hydrogen fuel cell tail gas treatment system, comprising:
a galvanic pile;
the hydrogen buffer tank, the hydrogen buffer tank has air inlet and discharge port, just be equipped with the fin on the outer wall of hydrogen buffer tank, the air inlet with the tail gas outlet pipe intercommunication of pile, the discharge port can be opened and closed.
6. The air-cooled hydrogen fuel cell tail gas treatment system according to claim 5, wherein the hydrogen buffer tank is communicated with the tail gas outlet pipeline through a communicating pipe, and a radiating fin is arranged at the connecting end of the communicating pipe and the hydrogen buffer tank.
7. An air-cooled hydrogen fuel cell tail gas treatment system, comprising:
a galvanic pile;
the hydrogen buffer tank, the hydrogen buffer tank has air inlet and discharge port, the discharge port can be opened and closed, the air inlet through communicating pipe with the tail gas outlet pipeline intercommunication of galvanic pile, just be equipped with the heating member on the outer wall of communicating pipe.
8. An air-cooled hydrogen fuel cell system characterized by comprising the air-cooled hydrogen fuel cell off-gas treatment system according to any one of claims 1 to 7.
9. An apparatus characterized by comprising the air-cooling type hydrogen fuel cell system according to claim 8.
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