CN117133944A - Tail water distribution system of fuel cell - Google Patents
Tail water distribution system of fuel cell Download PDFInfo
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- CN117133944A CN117133944A CN202311064607.1A CN202311064607A CN117133944A CN 117133944 A CN117133944 A CN 117133944A CN 202311064607 A CN202311064607 A CN 202311064607A CN 117133944 A CN117133944 A CN 117133944A
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- condensation
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 245
- 239000000446 fuel Substances 0.000 title claims abstract description 69
- 238000009833 condensation Methods 0.000 claims abstract description 80
- 230000005494 condensation Effects 0.000 claims abstract description 80
- 239000007788 liquid Substances 0.000 claims abstract description 70
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims description 27
- 238000009423 ventilation Methods 0.000 claims description 20
- 239000002826 coolant Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 39
- 239000000110 cooling liquid Substances 0.000 description 27
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- 239000001257 hydrogen Substances 0.000 description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 12
- 229910001220 stainless steel Inorganic materials 0.000 description 10
- 239000010935 stainless steel Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 238000010248 power generation Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000012946 outsourcing Methods 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- BPKGOZPBGXJDEP-UHFFFAOYSA-N [C].[Zn] Chemical compound [C].[Zn] BPKGOZPBGXJDEP-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
- H01M8/04164—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal by condensers, gas-liquid separators or filters
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to the technical field of fuel cell modules, in particular to a tail water discharge system of a fuel cell, which can treat gas discharged by a second branch by utilizing water discharged by a first branch in an empty path mixer, and meanwhile, the empty path mixer is communicated with a water discharge main pipeline provided with a water collecting device through a fourth branch, so that the invention can collect water discharged by the first branch and the empty path mixer, and the gas discharged by the empty path mixer is introduced into an exhaust main pipeline provided with a condensation water separator and a gas-liquid water separator which are sequentially communicated, and the separated water is introduced into the water collecting device simultaneously by utilizing the condensation water separator and the gas-liquid water separator in the exhaust main pipeline, so that the invention can separate and collect water generated by the fuel cell in the working process when in use, thereby realizing the function of treating and collecting the gaseous water generated by the fuel cell module.
Description
Technical Field
The invention relates to the technical field of fuel cell modules, in particular to a tail water discharge system of a fuel cell.
Background
With the application of the hydrogen fuel cell module system in the distributed power generation field, the system power is continuously increased, and for the MW-level hydrogen fuel cell module distributed power generation system, the system has the advantages of high efficiency, low noise, small volume, environmental protection, flexible power allocation and the like, the application scene of a large-scale distributed power station or cogeneration system is developing the demonstration application, and for the reaction product water of the 1MW fuel cell module system, the theoretical maximum amount is about 0.6m3/h, if the reaction product water can be collected and utilized, the economic value of the whole system is improved, and the direct discharge of water in the tail exhaust gas not only can cause the waste of water resources, but also can cause the waste of a large amount of heat. At present, only a few manufacturers on the market install separators (such as China patent CN116072925A, CN115483413A and the like) on tail pipes of an air compressor fuel cell module system with a turbo expander for separating liquid water in tail exhaust gas so as to reduce the influence of the tail liquid water on the corrosion damage and high-speed stability of the turbine end of the air compressor; the prior art does not address and collect the gaseous water produced by the fuel cell module system.
Disclosure of Invention
The invention mainly aims to provide a tail water discharge system of a fuel cell, which aims to solve the technical problem that the gaseous water generated by a fuel cell module system is not treated and collected in the related art.
To achieve the above object, in a first aspect, the present invention provides a tail water diversion system for a fuel cell, comprising:
the fuel cell module comprises a galvanic pile and an air channel mixer, wherein first water outlets and first air outlets are formed in the galvanic pile at intervals, the first water outlets are communicated with a water inlet of the air channel mixer through first branches, the first branches are communicated with an air channel water separator, and the first air outlets are communicated with an air inlet of the air channel mixer through second branches;
the exhaust main pipeline is communicated with the air outlet of the air-way mixer through a third branch, and is sequentially communicated with a condensation water separator and a gas-liquid water separator according to an exhaust path; the method comprises the steps of,
the water draining main pipeline is communicated with the water outlet of the air channel mixer through a fourth branch, and is also communicated with the condensation water separator and the gas-liquid water separator, and is communicated with a water collecting device.
Optionally, the condensation water separator comprises:
the first tank body is internally provided with a condensation chamber, the top and the bottom of the first tank body are respectively provided with a second air inlet and a second water outlet which are communicated with the condensation chamber, and a second air outlet which is communicated with the condensation chamber is also formed at a position, close to the second water outlet, on the first tank body;
the first water-blocking ventilation plate is arranged at the second exhaust port; the method comprises the steps of,
the condensing part is arranged in the condensing chamber, a plurality of condensing cavities which are arranged at intervals and used for placing condensate are formed in the condensing part, a channel is formed between any two adjacent condensing cavities, one end of the channel is communicated with the second air inlet, and the other end of the channel is communicated with the second air outlet and the second water outlet.
Optionally, a cooling liquid inlet for cooling liquid to enter the condensation cavity is formed on the side wall of the first tank body at a position close to the bottom of the condensation piece, and a cooling liquid outlet for cooling liquid to be discharged out of the condensation cavity is formed on the side wall of the first tank body at a position close to the top of the condensation piece.
Optionally, the top inner chamber of condensation chamber is the divergent setting down, the passageway is vertical link up the condensate, still be provided with a plurality of interval distribution in the condensate top the flow distribution plate, the flow distribution plate is the slope setting from top to bottom towards being close to the inside wall direction of first jar body.
Optionally, a first liquid level meter which is distributed with the second air outlet at intervals is further arranged on the side wall of the first tank body at a position close to the bottom; and/or the number of the groups of groups,
the condensation water separator further comprises a first drain valve, and the first drain valve is installed at the second drain outlet.
Optionally, the gas-liquid separator comprises:
the second tank body is internally provided with a separation chamber, the top and the bottom of the second tank body are respectively provided with a third air inlet and a third water outlet which are communicated with the separation chamber, and a third air outlet which is communicated with the separation chamber is also formed at a position, close to the third water outlet, on the second tank body;
the second water-blocking ventilation plate is arranged at the third exhaust port; the method comprises the steps of,
the water-blocking air-permeable cover is arranged in the separation chamber, the water-blocking air-permeable cover is gradually reduced from top to bottom, and the top of the water-blocking air-permeable cover is positioned above the third air inlet.
Optionally, the gas-liquid water separator further comprises a filter screen, wherein the filter screen is installed in the separation chamber and is positioned above the water-blocking and air-permeable cover; and/or the number of the groups of groups,
the gas-liquid water separator also comprises a second drain valve, and the second drain valve is arranged at the third drain outlet; and/or the number of the groups of groups,
and the position of the second tank body close to the third water outlet is also provided with second liquid level meters which are distributed at intervals with the third air inlet.
Optionally, the first branch is provided with a gas path drain valve
Optionally, the fourth branch is also communicated with an empty drain valve.
Optionally, the fuel cell modules have a plurality, and a plurality of the fuel cell modules are arranged in parallel.
According to the technical scheme, the fuel cell module, the exhaust main pipeline and the exhaust main pipeline are arranged, the first water outlet and the first air outlet which are distributed at intervals are arranged on the electric pile in the fuel cell module, the first water outlet is communicated with the air channel mixer through the first branch pipeline, the first air outlet is communicated with the air channel water separator through the second branch pipeline, the first air outlet is communicated with the air channel mixer through the second branch pipeline, the water and gas discharged by the electric pile module can be separated by the aid of the arranged air channel water separator, after water and gas separation is completed, the separated water is discharged to the air channel mixer through the first branch pipeline, the first air outlet on the electric pile is communicated with the air channel mixer through the second branch pipeline, the air channel mixer is treated by the aid of the water discharged by the first branch pipeline, the air channel mixer is simultaneously communicated with the exhaust main pipeline provided with the water collecting device through the fourth branch pipeline, the water and gas can be separated from the first branch pipeline and the air channel mixer, water and the water can be discharged from the air channel mixer by the air channel water collector and the air collecting device, and the water can be separated from the air channel water collecting device to the air channel mixer, and the water and the air collecting device can be separated by the water and the air collecting device in turn, and the water can be separated from the air channel collector is discharged from the air channel mixer through the air channel mixer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a tail water distribution system of an exemplary fuel cell of the present invention;
fig. 2 is a schematic structural view of the fuel cell module illustrated in fig. 1;
FIG. 3 is a schematic view of the condensate water separator illustrated in FIG. 1;
FIG. 4 is a schematic view of the structure of section A-A illustrated in FIG. 3;
FIG. 5 is a schematic view of the structure of section B-B illustrated in FIG. 3;
FIG. 6 is a schematic view of the structure of the C-C section illustrated in FIG. 3;
FIG. 7 is a schematic diagram of the structure of the gas-liquid separator illustrated in FIG. 1;
fig. 8 is a schematic structural view of the D-D section illustrated in fig. 7.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the mechanisms in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is correspondingly changed.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a 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 at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The inventive concept of the present invention is further elucidated below in connection with some embodiments.
The invention provides a fuel cell module.
As shown in fig. 1 to 8, an embodiment of the fuel cell module of the present invention is proposed.
In this embodiment, referring to fig. 1 to 8, a tail water distribution system of the fuel cell includes:
the fuel cell module 100, the fuel cell module 100 includes a galvanic pile 110 and an empty mixer 120, the galvanic pile 110 is formed with first water outlets and first air outlets which are distributed at intervals, the first water outlets are communicated with a water inlet of the empty mixer 120 through a first branch 130, the first branch 130 is communicated with an air path water separator 140, and the first air outlets are communicated with an air inlet of the empty mixer 120 through a second branch 150;
the main exhaust pipeline 200 is communicated with the air outlet of the empty mixer 120 through a third branch 160, and the main exhaust pipeline 200 is sequentially communicated with a condensation water separator 210 and a gas-liquid water separator 220 according to an exhaust path; the method comprises the steps of,
the main drainage pipeline 300 is communicated with the water outlet of the empty mixer 120 through the fourth branch 170, the main drainage pipeline 300 is also communicated with the condensation water separator 210 and the gas-liquid water separator 220, and the main drainage pipeline 300 is communicated with the water collecting device 310.
It should be specifically and explicitly noted that, the air path water separator and the air path mixer 120 illustrated in the present embodiment may be implemented by corresponding devices already mature in the prior art, and only the air path water separator and the air path mixer are applied in the present embodiment, and the specific structure and the working principle thereof are not improved or designed, so that the details are not repeated here.
Of course, in the exemplary embodiment, the fuel cell module 100 proposed by the present invention is preferably a hydrogen fuel cell.
In this embodiment, through setting up the fuel cell module 100, the main exhaust pipeline 200 and the main exhaust pipeline 300, set up the first drain outlet and the first exhaust outlet distributed at intervals on the electric pile 110 in the fuel cell module 100, make the first drain outlet communicate with air-way mixer 120 through the first branch 130, and communicate a gas-way water separator 140 on the first branch 130, and make the first exhaust outlet communicate with air-way mixer 120 through the second branch 150, make the invention can utilize the gas-way water separator 140 set up to carry on the water vapor separation to the electric pile 110 module and exhaust water, after finishing the water vapor separation, reuse the first branch 130 to discharge the water separated to the air-way mixer 120, and make the first exhaust outlet on the electric pile 110 communicate with air-way mixer 120 through the second branch 150, and then make the invention can utilize the water discharged by the first branch 130 to treat the gas discharged by the second branch 150 in the air-way mixer 120, at the same time, make the water separator 120 and the main exhaust pipeline 200 set up to separate the water from the air-way mixer 120 through the fourth branch 170 and use the main exhaust pipeline 200 to make the water separator 220 in turn, make the invention can be connected to the water separator and the water separator 200 in the air-way water separator and the water separator in the air-way of the air-way mixer 120, the invention is separated to the water separator is discharged to the water separator 220 in turn, and the water separator is set up to the water separator is discharged to the water separator 220 in the air separator of the air separator 120 and the air separator is connected to the water separator 120 and the water separator 120, a function of processing and collecting the gaseous water generated in the fuel cell module 100 is realized.
In some embodiments, the condensate water separator 210 includes:
the first tank 211, a condensation chamber is formed in the first tank 211, a second air inlet 211a and a second water outlet 211c which are communicated with the condensation chamber are respectively formed at the top and the bottom of the first tank 211, and a second air outlet 211b which is communicated with the condensation chamber is also formed at a position, close to the second water outlet 211c, on the first tank 211;
a first water-blocking ventilation plate 212, the first water-blocking ventilation plate 212 being mounted to the second air outlet 211b; the method comprises the steps of,
the condensing unit 213, the condensing unit 213 is installed in the condensing chamber, a plurality of condensing chambers 213a are formed on the condensing unit 213, and a channel 213b is formed between any two adjacent condensing chambers 213a, one end of the channel 213b is connected to the second air inlet 211a, and the other end is connected to the second air outlet 211b and the second air outlet 211c.
It should be specifically and explicitly noted that, in this embodiment, the plurality of cooling chambers are all connected to each other, and of course, in order to enhance the cooling effect, the connection positions of the plurality of cooling chambers are all located at the bottom end. Also, the exemplary cooling member is preferably a cylindrical structure, and the plurality of channels 213b are arranged in an array on the condensing member 213.
In this embodiment, by providing the first tank 211, the first water-blocking ventilation plate 212 and the condensation member 213, a condensation chamber is formed in the first tank 211, the top and bottom of the first tank 211 are respectively formed with a second air inlet 211a and a second air outlet 211c communicating with the condensation chamber, a second air outlet 211b communicating with the condensation chamber is formed at a position of the first tank 211 near the second air outlet 211c, the first water-blocking ventilation plate 212 is mounted in the second air outlet 211b, the condensation member 213 is mounted in the condensation chamber, and the gas entering the first tank 211 from the channel 213b on the condensation member 213 flows through and is cooled in the condensation chamber 213a for gas-liquid separation, so that the present invention realizes a function of gas-liquid separation of the gas entering the condensation chamber 213a from the second air inlet 211 a.
In some embodiments, a cooling liquid inlet 211d for cooling liquid to enter the condensation chamber 213a is formed on the sidewall of the first tank 211 near the bottom of the condensation member 213, and a cooling liquid outlet 211e for cooling liquid to exit the condensation chamber 213a is formed on the sidewall of the first tank 211 near the top of the condensation member 213.
In the present embodiment, the cooling effect can be improved by forming the cooling liquid inlet 211d for the cooling liquid to enter the condensation chamber 213a on the side wall of the first tank 211 at a position close to the bottom of the condensation member 213, and forming the cooling liquid outlet 211e for the cooling liquid to enter the condensation chamber 213a on the side wall of the first tank 211 at a position close to the top of the condensation member 213.
In some embodiments, the top cavity of the condensation chamber is gradually widened downwards, the channel 213b vertically penetrates through the condensation member 213, a plurality of flow dividing plates 214 are further disposed in the condensation chamber 213a and are distributed above the condensation member 213 at intervals, and the flow dividing plates 214 are obliquely disposed downwards from the direction of the second air inlet 211a towards the direction close to the inner side wall of the first tank 211.
In this embodiment, the inner cavity at the top of the condensation chamber is gradually widened downwards, so that the channel 213b vertically penetrates through the condensation member 213, and a plurality of flow dividing plates 214 are further disposed in the condensation chamber 213a and are distributed above the condensation member 213 at intervals, so that the flow dividing plates 214 are obliquely disposed downwards from the direction of the second air inlet 211a towards the direction close to the inner side wall of the first tank 211, and therefore, when the air cooler is used, the air cooler can divide the air entering from the second air inlet 211a by using the flow dividing plates 214, and the cooling efficiency of the cooling member on the air is improved.
In some embodiments, a first level gauge 215 is further disposed on the sidewall of the first tank 211 near the bottom and spaced apart from the second exhaust port 211 b.
In this embodiment, by providing the first liquid level gauge 215, the liquid level height in the first tank 211 can be observed by the first liquid level gauge 215 when the invention is used, so that the air intake speed of the second air intake 211a can be conveniently adjusted.
The condensate water separator 210 further includes a first drain valve 216, the first drain valve 216 being mounted to the second drain port 211c.
In this embodiment, the first drain valve 216 is provided on the condensation water separator 210, so that the present invention can close and open the second drain port when in use, thereby facilitating drainage.
In some embodiments, the gas-liquid separator 220 includes:
the second tank 221, a separation chamber is formed in the second tank 221, a third air inlet 221a and a third water outlet 221b which are communicated with the separation chamber are respectively formed at the top and the bottom of the second tank 221, and a third air outlet 221c which is communicated with the separation chamber is also formed on the second tank 221 at a position close to the third water outlet 221b;
a second water-blocking ventilation plate 222, the second water-blocking ventilation plate 222 being mounted to the third air outlet 221c; the method comprises the steps of,
the water-blocking air-permeable cover 223 is installed in the separation chamber, the water-blocking air-permeable cover 223 is gradually reduced in the separation chamber, and the top of the water-blocking air-permeable cover 223 is positioned above the third air inlet 221 a.
In this embodiment, by providing the second tank 221, the second water-blocking ventilation plate 222 and the water-blocking ventilation cover 223, the present invention can separate water and air again from other water discharged from the first tank 211 during use, thereby improving the collection effect of water carried in the gas.
In some embodiments, the gas-liquid separator 220 further includes a screen 224, the screen 224 being mounted within the separation chamber, and the screen 224 being positioned above the water-blocking gas-permeable cover 223.
The gas-liquid separator 220 further includes a second drain valve 225, and the second drain valve 225 is mounted to the third drain port 221b.
The second tank 221 is further provided with second level gauges 226 spaced apart from the third air inlet 221a at a position close to the third water outlet 221b.
In some embodiments, the first leg 130 is provided with a pneumatic drain valve 180. The fourth branch 170 is also connected to a hollow drain valve 190. The fuel cell module 100 has a plurality of fuel cell modules 100 arranged in parallel.
In some exemplary embodiments, taking a MW-class fuel cell as an example in the present embodiment, the tail water diversion system of the distributed power generation system mainly comprises a fuel cell unit, a second branch 150, a water drainage branch pipe, a main air drainage pipe 200, a main water drainage pipe 300, a condensation water separator 210, a gas-liquid water separator 220, a cooling liquid inlet line, a cooling liquid outlet line, and a water collecting device 310.
The fuel cell unit refers to a single fuel cell module 100 unit, all the components form a pry, and only a tail row related system of two paths of hydrogen and air is shown in the figure, and the fuel cell unit mainly comprises a fuel cell stack 110 module, a hydrogen path water separator, a gas path drain valve 180, an empty path mixer 120, an empty path drain valve 190 and a connecting pipeline. Wherein the fuel cell stack 110 is a Proton Exchange Membrane Fuel Cell (PEMFC), which can be a single stack or multiple stacks; the hydrogen path water separator is used for measuring liquid water at the hydrogen outlet of the primary separation cell stack 110, so that hydrogen flows back to the hydrogen inlet end as much as possible; the gas circuit drain valve 180 discharges the separated liquid water out of the hydrogen circuit system according to the liquid level in the hydrogen circuit water separator in a fixed period; the air-path mixer 120 mainly uses the air-path tail exhaust high-flow gas to dilute the hydrogen which is inevitably exhausted in the drainage process of the air-path drain valve 180, so as to ensure the safety of the hydrogen, and simultaneously plays a role in primary collection of liquid water and drainage of a system; the empty drain valve 190 drains the primary collected liquid water to a collection system based on the level of liquid in the empty mixer 120 at regular intervals.
The second branch 150 and the main exhaust line 200 are hot dip galvanized carbon steel pipes or stainless steel pipes, which are used as exhaust lines for each fuel cell unit for the series connection of the exhaust systems in the system.
The drain branch pipe and the drain main pipe 300 are hot dip zinc carbon steel pipes or stainless steel pipes, which serve as drain lines for the respective fuel cell units, and finally collect the collected water through the drain main pipe 300 to drain the collected water to the water collecting device 310.
The condensation water separator 210 is a self-designed workpiece, and is integrally formed into a skid, and mainly comprises a first tank 211, a second air inlet 211a, a flow dividing plate 214, a condensation piece 213, a cooling liquid inlet 211d, a cooling liquid outlet 211e, a second air outlet, a first water-blocking ventilation plate 212, a first liquid level meter 215, a second drain valve 225 and a second drain outlet 211c. The first tank 211 is a customized stainless steel structure, and is provided with a second air inlet 211a, a cooling liquid inlet 211d, a cooling liquid outlet 211e, a second air outlet and a second water outlet 211c; the tail gas enters through a second air inlet 211a at the top of the condensation water separator 210; the splitter plate 214 is a thin stainless steel plate and is internally embedded and fixed on the first tank 211) to uniformly split the tail gas to the condensing part 213; the condensing part 213 is a stainless steel pipe, a gas channel 213b is measured in the condensing part and is communicated with the air cavity of the condensation water separator 210, cooling water is arranged at the outer side of the condensing part, and tail exhaust gas flows through the condensing part 213 to exchange heat with the cooling water outside the pipe so as to condense a tail exhaust gas body; the cooling liquid inlet 211d enters the water cavity of the condensation water separator 210 tangentially, so that the spiral disturbance of the fluid is increased; the coolant outlet 211e also adopts a tangential outflow condensate water separator 210; the condensed tail gas leaves the condensation water separator 210 through a lateral second gas outlet; the first water-blocking ventilation plate 212 is arranged at the front end of the second air outlet, is a circular arc stainless steel thin plate, and is uniformly distributed with small holes, and is mainly used for blocking liquid drops from passing as far as possible while allowing air to pass smoothly, and belongs to primary water removal; the first liquid level meter 215 is an outsourcing piece and is arranged on the first tank 211) and is communicated with the liquid level in the condensation water separator 210, so that the liquid level condition in the condensation water separator 210 can be observed in real time; the second drain valve 225 is an outsourcing part and is arranged in front of the second drain port 211c of the condensation water separator 210, and is opened and closed periodically according to the liquid level in the condensation water separator 210, so as to drain the condensed water in the condensation water separator 210; the second drain port 211c is located at the bottom of the condensate water separator 210, through which condensate water is drained and a drain line.
The gas-liquid separator 220 is a self-designed workpiece, and is integrally welded to form a pry. Mainly comprises a second tank 221, a third air inlet 221a, a second water-blocking ventilation plate 222, a water-blocking ventilation cover 223, a filter screen 224, an exhaust gas discharge port, a second liquid level meter 226, a second drain valve 225 and a third drain outlet 221b. The second tank 221 is a customized stainless steel structure, and a third air inlet 221a, an exhaust gas outlet and a third water outlet 221b are arranged on the second tank; the third air inlet 221a enters the gas-liquid water separator 220 in a tangential way, so that spiral disturbance of fluid is increased, and the air flow is convenient for separating liquid drops entrained by the air flow under the action of centrifugal force; the second water-blocking ventilation plate 222 is arranged at the rear end of the third air inlet 221a, is a circular arc stainless steel sheet, and is uniformly distributed with small holes, and is mainly used for blocking liquid drops from passing as far as possible while allowing air to pass smoothly, and belongs to primary water removal; the water-blocking air-permeable cover 223 is embedded and fixed on the second tank 221, and small holes are uniformly distributed on the water-blocking air-permeable cover, so that the water-blocking air-permeable cover mainly aims at ensuring smooth passage of gas and blocking liquid drops, and can collide with the water-blocking air-permeable cover 223 in the spiral flow process of air flow, thereby being more beneficial to separation of the liquid drops and belonging to secondary water removal; the filter screen 224 adopts a stainless steel wire mesh and is used for further intercepting liquid drops, and belongs to three-stage water removal; the tail gas discharge port is arranged at the top of the gas-liquid water separator 220 and adopts an upper gas outlet mode; the second liquid level meter 226 is an outsourcing piece and is arranged on the second tank 221 and communicated with the liquid level in the gas-liquid water separator 220, so that the liquid level condition in the gas-liquid water separator 220 can be observed in real time; the second drain valve 225 is an outsourcing member and is arranged in front of the third drain outlet 221b of the gas-liquid separator 220, and is opened and closed periodically according to the liquid level in the gas-liquid separator 220, so that water in the gas-liquid separator 220 is discharged; a third drain port 221b is provided at the bottom of the gas-liquid separator 220 through which water is discharged through the drain line.
The cooling liquid inlet pipeline and the cooling liquid outlet pipeline adopt hot dip zinc carbon steel pipes or stainless steel pipelines, are respectively connected with a cooling liquid inlet 211d and a cooling liquid outlet 211e on the condensation water separator 210, and are used for providing cooling liquid for the system, condensing the tail exhaust gas and taking away heat.
The water collection device 310 is arranged in a region according to the centralized planning as required, which is convenient for centralized management and maintenance, wherein facilities for water collection, water treatment and water utilization can be configured according to the requirements of users.
The MW level fuel cell distributed power generation system tail drainage water distribution system and device have the following application scheme:
the tail drainage and water diversion system of the whole MW-level fuel cell distributed power generation system mainly comprises a fuel cell unit, a second branch 150, a drainage branch pipe, an exhaust main pipeline 200, a drainage main pipeline 300, a condensation water diversion device 210, a gas-liquid water diversion device 220, a cooling liquid inlet 211d, a cooling liquid outlet 211e and a water collection device 310.
The fuel cell unit refers to a single fuel cell module 100 unit, all components form a skid, a plurality of sets of fuel cell units are firstly configured according to the specific requirement of MW level power of the whole project, then the first branch 130 of all the fuel cell units are connected and directly led to a drainage main pipeline 300, the second branch 150 of all the fuel cell units are connected and collected to an exhaust main pipeline 200, tail exhaust gas is split in the water separator through a splitter plate 214 after being connected with a second air inlet 211a of a condensation water separator 210, heat exchange is carried out between the tail exhaust gas and cooling liquid in the condensation piece 213, at the moment, the tail exhaust gas is changed from high-temperature saturated gas (about 80 ℃) to low-temperature saturated gas (about 35 ℃, the temperature can be set according to the actual requirement) so as to separate out liquid water, then interception of most liquid drops is realized through a first water blocking ventilation plate 212, and the condensed tail exhaust gas is discharged out of the condensation water separator 210 through a second air outlet; the condensed water gathers at the bottom of the condensation water separator 210, and when the first level gauge 215 shows a high level, the second drain valve 225 automatically opens to drain the condensed water through the second drain port 211c, and the drain water passes through the drain branch pipe, is collected to the drain main pipe 300, and is further transferred to the water collecting device 310; before the fuel cell unit operates, the gas path drain valve 180 and the air path drain valve 190 can both set an opening period interval and an opening duration according to the water yield of each working point of the fuel cell unit.
The tail gas leaving the condensation water separator 210 enters the gas-liquid water separator 220 tangentially according to the actual situation, primary water removal is carried out through a second water-blocking ventilation plate 222, after entering the cavity of the gas-liquid water separator 220, air flow is spirally disturbed in the cavity, water separation and secondary water removal are realized under the comprehensive actions of centrifugal force and collision with a water-blocking ventilation cover 223, the tail gas continues to move upwards, three-stage water removal is carried out on liquid drops through a filter screen 224, and finally the tail gas is discharged out of the gas-liquid water separator 220 through a tail gas discharge port; the intercepted water gathers at the bottom of the gas-liquid separator 220, and when the second level gauge 226 displays a high level, the second drain valve 225 automatically opens to drain water through the third drain port 221b, and the drain water passes through the drain branch pipe, is collected to the drain main pipe 300, and is further transferred to the water collecting device 310.
In summary, the condensation, separation and final utilization of the gaseous water and the liquid water in the tail gas of the fuel cell unit are realized under the combined action of the two condensation water separators 210 and the gas-liquid water separators 220, so that the recovery and the reutilization of water resources are realized, and the economical efficiency of the whole system is improved.
In this embodiment, through setting up the fuel cell module 100, the main exhaust pipeline 200 and the main exhaust pipeline 300, set up the first drain outlet and the first exhaust outlet distributed at intervals on the electric pile 110 in the fuel cell module 100, make the first drain outlet communicate with air-way mixer 120 through the first branch 130, and communicate a gas-way water separator 140 on the first branch 130, and make the first exhaust outlet communicate with air-way mixer 120 through the second branch 150, make the invention can utilize the gas-way water separator 140 set up to carry on the water vapor separation to the electric pile 110 module and exhaust water, after finishing the water vapor separation, reuse the first branch 130 to discharge the water separated to the air-way mixer 120, and make the first exhaust outlet on the electric pile 110 communicate with air-way mixer 120 through the second branch 150, and then make the invention can utilize the water discharged by the first branch 130 to treat the gas discharged by the second branch 150 in the air-way mixer 120, at the same time, make the water separator 120 and the main exhaust pipeline 200 set up to separate the water from the air-way mixer 120 through the fourth branch 170 and use the main exhaust pipeline 200 to make the water separator 220 in turn, make the invention can be connected to the water separator and the water separator 200 in the air-way water separator and the water separator in the air-way of the air-way mixer 120, the invention is separated to the water separator is discharged to the water separator 220 in turn, and the water separator is set up to the water separator is discharged to the water separator 220 in the air separator of the air separator 120 and the air separator is connected to the water separator 120 and the water separator 120, a function of processing and collecting the gaseous water generated in the fuel cell module 100 is realized.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. A tail drain water distribution system for a fuel cell, comprising:
the fuel cell module comprises a galvanic pile and an air channel mixer, wherein first water outlets and first air outlets are formed in the galvanic pile at intervals, the first water outlets are communicated with a water inlet of the air channel mixer through first branches, the first branches are communicated with an air channel water separator, and the first air outlets are communicated with an air inlet of the air channel mixer through second branches;
the exhaust main pipeline is communicated with the air outlet of the air-way mixer through a third branch, and is sequentially communicated with a condensation water separator and a gas-liquid water separator according to an exhaust path; the method comprises the steps of,
the water draining main pipeline is communicated with the water outlet of the air channel mixer through a fourth branch, and is also communicated with the condensation water separator and the gas-liquid water separator, and is communicated with a water collecting device.
2. The tail drain water splitting system of a fuel cell of claim 1, wherein said condensate water splitting system comprises:
the first tank body is internally provided with a condensation chamber, the top and the bottom of the first tank body are respectively provided with a second air inlet and a second water outlet which are communicated with the condensation chamber, and a second air outlet which is communicated with the condensation chamber is also formed at a position, close to the second water outlet, on the first tank body;
the first water-blocking ventilation plate is arranged at the second exhaust port;
the method comprises the steps of,
the condensing part is arranged in the condensing chamber, a plurality of condensing cavities which are arranged at intervals and used for placing condensate are formed in the condensing part, a channel is formed between any two adjacent condensing cavities, one end of the channel is communicated with the second air inlet, and the other end of the channel is communicated with the second air outlet and the second water outlet.
3. The tail drain water distribution system of claim 2, wherein a coolant inlet for coolant to enter the condensation chamber is formed in a side wall of the first tank adjacent to a bottom of the condensation member, and a coolant outlet for coolant to exit the condensation chamber is formed in a side wall of the first tank adjacent to a top of the condensation member.
4. The tail drain water diversion system of claim 2, wherein the top cavity of the condensation chamber is arranged in a divergent manner downwards, the channel vertically penetrates through the condensation piece, a plurality of flow dividing plates distributed above the condensation piece at intervals are further arranged in the condensation chamber, and the flow dividing plates are arranged in an inclined manner from top to bottom towards the direction close to the inner side wall of the first tank body.
5. The tail drain water diversion system of a fuel cell as set forth in claim 2, wherein a first level gauge is further provided on the side wall of the first tank near the bottom and spaced apart from the second exhaust port; and/or the number of the groups of groups,
the condensation water separator further comprises a first drain valve, and the first drain valve is installed at the second drain outlet.
6. The tail drain water diversion system of a fuel cell as set forth in any one of claims 1 to 5, wherein the gas-liquid separator includes:
the second tank body is internally provided with a separation chamber, the top and the bottom of the second tank body are respectively provided with a third air inlet and a third water outlet which are communicated with the separation chamber, and a third air outlet which is communicated with the separation chamber is also formed at a position, close to the third water outlet, on the second tank body;
the second water-blocking ventilation plate is arranged at the third exhaust port; the method comprises the steps of,
the water-blocking air-permeable cover is arranged in the separation chamber, the water-blocking air-permeable cover is gradually reduced from top to bottom, and the top of the water-blocking air-permeable cover is positioned above the third air inlet.
7. The tail drain water distribution system of the fuel cell of claim 6, wherein the gas-liquid separator further comprises a screen, the screen being mounted within the separation chamber and above the water-blocking air-permeable cover;
and/or the number of the groups of groups,
the gas-liquid water separator also comprises a second drain valve, and the second drain valve is arranged at the third drain outlet;
and/or the number of the groups of groups,
and the position of the second tank body close to the third water outlet is also provided with second liquid level meters which are distributed at intervals with the third air inlet.
8. The tail drain water distribution system of a fuel cell as recited in any one of claims 1 to 5, wherein a gas path drain valve is provided on the first branch.
9. The tail drain water distribution system of any one of claims 1 to 5, wherein said fourth branch is further connected to a drain valve.
10. The tail drain water diversion system of a fuel cell according to any one of claims 1 to 5, wherein the fuel cell module has a plurality, and a plurality of the fuel cell modules are arranged in parallel.
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| CN202311064607.1A CN117133944B (en) | 2023-08-22 | 2023-08-22 | Tail water distribution system of fuel cell |
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| CN202311064607.1A CN117133944B (en) | 2023-08-22 | 2023-08-22 | Tail water distribution system of fuel cell |
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| CN117133944B CN117133944B (en) | 2024-03-29 |
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| JP2007141524A (en) * | 2005-11-15 | 2007-06-07 | Toshiba Corp | Gas liquid separator and fuel cell power generation system provided with gas liquid separator |
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| CN107799789A (en) * | 2016-09-05 | 2018-03-13 | 北京晟泽科技有限公司 | A kind of unmanned plane fuel cell reaction water management system |
| CN108390082A (en) * | 2018-04-23 | 2018-08-10 | 中科军联（张家港）新能源科技有限公司 | A kind of separator for direct liquid feed fuel cell |
| CN216818401U (en) * | 2021-12-01 | 2022-06-24 | 上海氢蓝新能源科技有限公司 | Fuel cell emission management system |
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2023
- 2023-08-22 CN CN202311064607.1A patent/CN117133944B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007141524A (en) * | 2005-11-15 | 2007-06-07 | Toshiba Corp | Gas liquid separator and fuel cell power generation system provided with gas liquid separator |
| CN107799789A (en) * | 2016-09-05 | 2018-03-13 | 北京晟泽科技有限公司 | A kind of unmanned plane fuel cell reaction water management system |
| CN206585014U (en) * | 2017-02-28 | 2017-10-24 | 武汉东湖氢能源产业投资有限公司 | Fuel cell apparatus for recovering |
| CN108390082A (en) * | 2018-04-23 | 2018-08-10 | 中科军联（张家港）新能源科技有限公司 | A kind of separator for direct liquid feed fuel cell |
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