CN114759221A - Fuel cell air supply device and method based on stack tail gas, fuel cell system and vehicle - Google Patents
Fuel cell air supply device and method based on stack tail gas, fuel cell system and vehicle Download PDFInfo
- Publication number
- CN114759221A CN114759221A CN202110028025.2A CN202110028025A CN114759221A CN 114759221 A CN114759221 A CN 114759221A CN 202110028025 A CN202110028025 A CN 202110028025A CN 114759221 A CN114759221 A CN 114759221A
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- air compressor
- inlet
- air
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/10—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth equivalents, e.g. rollers, than the inner member
- F04C18/107—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth equivalents, e.g. rollers, than the inner member with helical teeth
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/126—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
-
- 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
- H01M8/04111—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
-
- 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
- H01M8/04—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
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
Abstract
The invention relates to the field of fuel cell systems, in particular to a fuel cell air supply device and method based on stack tail gas, a fuel cell system and a vehicle; the air supply device is communicated with the electric pile and comprises a first water separator and an air compressor, wherein the inlet of the first water separator is communicated with the outlet of the electric pile through a pipeline, the first outlet of the first water separator is communicated with the inlet of the air compressor, and the outlet of the air compressor is communicated with the inlet of an air path of the electric pile; according to the embodiment of the invention, the tail gas of the galvanic pile passes through the water separator to generate water, and then the water is directly introduced into the inlet of the air compressor, so that the inlet air humidity of the air circuit of the galvanic pile is improved, and the air temperature is further reduced; the problem of current exclusive use air compressor machine inefficiency, motor speed require highly, have surge and block up the risk is solved, improved air compressor machine efficiency, simplified fuel cell system corollary equipment's structure, reduced fuel cell system corollary equipment whole consumption.
Description
Technical Field
The invention relates to the field of fuel cell systems, in particular to a fuel cell air supply device and method based on stack tail gas, a fuel cell system and a vehicle.
Background
The fuel cell converts chemical energy of hydrogen and air (oxygen) into electric energy in an electrochemical reaction mode through a proton exchange membrane, and then drives a vehicle to run through a motor. The air compressor is used as a core component of the cathode air supply system of the fuel cell, and is used for increasing the air input and pressure of air in the fuel cell by pressurizing the air entering the fuel cell, providing compressed air with certain temperature, pressure and flow for the electric pile and further improving the power density and efficiency of the fuel cell.
In the prior art, generally, a centrifugal air compressor is adopted for an air supply system of a fuel cell system to perform air compression, the compressed high-temperature and high-pressure air is subjected to temperature and humidity adjustment through an intercooler and other devices, and the tail gas of a fuel cell stack is directly exhausted to the atmosphere. In addition, the centrifugal air compressor generally adopted at present has the defects of high rotating speed, high technical requirement on a motor, surge and blockage risks, low efficiency and the like, and the rotating speed per minute is usually more than one hundred thousand revolutions per minute. Thus. How to reduce the power consumption of the fuel cell stack and the associated equipment is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the technical defects and technical disadvantages in the prior art, embodiments of the present invention provide a fuel cell air supply device, a method, a fuel cell system, and a vehicle based on stack exhaust, which overcome or at least partially solve the above problems, and solve the problems of the existing fuel cell air supply device, such as many accessories, high processing cost, low energy utilization rate, high requirement on the rotation speed of an air compressor motor, risk of surge and blockage, and low efficiency.
As an aspect of an embodiment of the present invention, there is provided a fuel cell air supply device based on stack tail gas, the air supply device being in communication with a stack, the air supply device including a first water separator and an air compressor, an inlet of the first water separator being in communication with an outlet of the stack through a pipeline, a first outlet of the first water separator being in communication with an inlet of the air compressor, and an outlet of the air compressor being in communication with an inlet of a stack air path.
Further, the first water separator is also provided with a second outlet, the second outlet is communicated with an inlet of an expansion machine through a pipeline, and an outlet of the expansion machine is communicated with an inlet of an air compressor through a pipeline.
Further, an expander is arranged between the first outlet of the first water divider and the inlet of the air compressor, the first outlet of the first water divider is communicated with the inlet of the expander through a pipeline, and the outlet of the expander is communicated with the inlet of the air compressor through a pipeline.
Further, a second water divider communicated through a pipeline is arranged between the outlet of the expansion machine and the inlet of the air compressor, and the second water divider is provided with an exhaust port.
Furthermore, an inlet of the air compressor is connected with an air filtering device through a pipeline, and the downstream of the air filtering device is communicated with an outlet of the first water separator and/or the second water separator through a pipeline.
Further, the air compressor is a roots blower, a single-screw air compressor or a double-screw air compressor.
Further, the air compressor is coaxially connected with the expansion machine through a motor.
Further, an intercooler is arranged between the outlet of the air compressor and the inlet of the electric pile.
As another aspect of the embodiments of the present invention, there is provided a fuel cell air supply method based on stack off-gas, including:
collecting tail gas of the galvanic pile through a water separator, and separating the tail gas to generate liquid water;
the outlet of the water separator is communicated with the inlet of the air compressor, and liquid water is introduced into the inlet of the air compressor;
and the compressed gas is input into an air path of the electric pile by using an air compressor.
As still another aspect of the embodiments of the present invention, there is provided a fuel cell system including the stack off-gas-based fuel cell air supply apparatus in any one of the above embodiments.
As another aspect of the embodiments of the present invention, there is provided a vehicle including the fuel cell system described in the above embodiments.
The embodiment of the invention at least realizes at least partial following technical effects:
according to the embodiment of the invention, the tail gas of the galvanic pile passes through the water separator to generate water, and then the water is directly introduced into the inlet of the air compressor, so that the inlet air humidity of the air circuit of the galvanic pile is improved, and the air temperature is further reduced. Furthermore, an air compressor is connected with an expansion machine, so that the energy of the air exhausted by the galvanic pile is recovered, and the defect that the air compressor is used independently and has low efficiency is overcome; the connection through the pipeline sets up the humidity of more effectual utilized pile tail gas, improves air compressor machine efficiency, reduces the air compressor machine consumption.
The embodiment of the invention not only solves the problems of high processing cost, high requirement on the rotating speed of the motor, surging and blocking risks, low efficiency and the like of the air compressor in the existing fuel cell system; moreover, the power consumption of the fuel cell system corollary equipment can be reduced, and the structure of the fuel cell system corollary equipment is simplified.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The object and other advantages of the present invention can be achieved and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a fuel cell air supply device and a fuel cell system based on stack tail gas according to a first embodiment of the present invention;
fig. 2 is a schematic diagram of a fuel cell air supply device and a fuel cell system based on stack tail gas according to a second embodiment of the invention;
fig. 3 is a schematic diagram of a fuel cell air supply device and a fuel cell system based on stack tail gas according to a third embodiment of the present invention.
Description of the drawings: 1. a galvanic pile; 2. a first water divider; 3. an air compressor; 4. a motor; 5. an air filtering device; 6. an expander; 7. a second water separator; 8. and an intercooler.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The figures and the following description depict alternative embodiments of the invention to teach those skilled in the art how to make and use the invention. Some conventional aspects have been simplified or omitted for the purpose of teaching the technical solutions of the present invention. Those skilled in the art will appreciate that variations or substitutions from these embodiments will fall within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Thus, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.
Example one
Referring to fig. 1, the present embodiment provides a fuel cell air supply device and a fuel cell system based on stack tail gas, where the fuel cell system includes a stack 1 and a fuel cell air supply device, the air supply device is communicated with the stack 1, the air supply device includes a first water separator 2 and an air compressor 3, an inlet of the first water separator 2 is communicated with an outlet of the stack 1 through a pipeline, a first outlet of the first water separator 2 is communicated with an inlet of the air compressor 3, and an outlet of the air compressor 3 is communicated with an inlet of an air passage of the stack 1. The method for supplying the fuel cell air supply device to the electric pile comprises the steps of collecting tail gas of the electric pile through a water separator, and separating the tail gas to generate liquid water; the outlet of the water separator is communicated with the inlet of the air compressor, and liquid water is introduced into the inlet of the air compressor; and the compressed gas is input into an air path of the electric pile by using an air compressor. The tail gas of the electric pile is directly introduced to an air compressor inlet after being subjected to liquid water generation by a water separator, and water is introduced to an air compressor inlet, so that the inlet air humidity of an air circuit of the electric pile is improved, and the air temperature is further reduced; meanwhile, the humidifier and the intercooler can be reduced or eliminated.
Preferably, the inlet of the air compressor 3 is connected with the air filtering device 5 through a pipeline, and the downstream of the air filtering device 5 is communicated with the outlet of the first water separator through a pipeline.
Preferably, the air compressor can be a roots blower, a single-screw air compressor or a double-screw air compressor, the problems that an existing commonly-adopted centrifugal air compressor is high in rotating speed and low in efficiency are solved, water vapor of the electric pile can be further utilized efficiently, water generated by the electric pile is utilized more effectively, and energy utilization efficiency is high.
The implementation of the invention is not limited to the type of air compressor, preferably, a roots-type, twin-screw, single-screw air compressor; the air compressor can be integrated with the expansion machine or separated.
Preferably, the air compressor is connected with the motor through a gear; the gear transmission mode is adopted to be connected with the air compressor, so that moisture in the tail gas of the electric pile can be fully utilized, and the efficiency of the air compressor is effectively improved.
Preferably, an intercooler is arranged between the outlet of the air compressor and the inlet of the electric pile. The intercooler of this embodiment is not necessary, sets up according to the operating mode, can further optimize the temperature pressure isoparametric of control galvanic pile air circuit.
Example two
Referring to fig. 2, on the basis of the first embodiment, the same parts are not repeated, and in the fuel cell air supply device and the fuel cell system based on stack tail gas provided in this embodiment, an expander 6 is disposed between a first outlet of the first water separator 2 and an inlet of the air compressor 3, the first outlet of the first water separator 2 is communicated with the inlet of the expander 6 through a pipeline, and an outlet of the expander 6 is communicated with the inlet of the air compressor 3 through a pipeline. In this embodiment, the fuel cell air supply device includes an air compressor and an expander at the same time, wherein the compressor and the expander may be integrated or separated, the air compressor and the expander may be driven by one motor at the same time, and when the air compressor and the expander are driven by one motor at the same time, the air compressor may be coaxially connected to the expander by the motor, so that the fuel cell air supply device may have a more compact structure, and the space of the fuel cell system may be reduced; or can be driven by two motors respectively; in addition, in this embodiment, the inlet of the liquid water of the air compressor includes at least two branches, one of the two branches is directly obtained by the water separator, the other branch is the liquid water obtained by the expander, and the flow meter power of the two branches can be adjusted, so that the humidity control is more convenient, and the efficiency is improved; of course, there is no limitation to only two branches, and multiple branches may be provided, such as 3, 4, etc.
Preferably, a second water separator 7 communicated through a pipeline is arranged between the outlet of the expansion machine 6 and the inlet of the air compressor 3, and the second water separator 7 is provided with an exhaust port; further collect the moisture in the tail gas, a part of tail gas is discharged, and the part that condenses into liquid water introduces air compressor machine 3, the humidity of gas in the better promotion air compressor machine to further promote the entry humidity of fuel cell system air circuit. The first water divider and the second water divider can exist independently or simultaneously, and liquid water passing through the first water divider and the second water divider is introduced into the inlet of the air compressor to improve the humidity of the air circuit of the electric pile, improve the outlet pressure and reduce the air temperature.
Preferably, the inlet of the air compressor 3 is connected with the air filtering device 5 through a pipeline, and the downstream of the air filtering device 5 is communicated with the outlets of the first water divider 2 and the second water divider 7 through pipelines.
Preferably, the present embodiment provides a roots-type (single-screw or double-screw) air compressor with an energy recovery function for a fuel cell, wherein the air compressor is used as an air compression component, the motor is connected with the air compressor in a gear transmission manner, and is matched with a roots-type (single-screw or double-screw) expander, so that the energy of stack exhaust can be recovered, the efficiency is further improved, and the defect of low efficiency of the roots-type air compressor used alone is overcome. And further utilize the humidity of galvanic pile tail gas, improved air compressor machine efficiency, reduced the air compressor machine consumption.
EXAMPLE III
Referring to fig. 3, on the basis of the first embodiment, the same parts are not repeated, and in the fuel cell air supply device and the fuel cell system based on stack tail gas provided in this embodiment, the first water separator 2 is further provided with a second outlet, the second outlet is communicated with an inlet of the expander 6 through a pipeline, and an outlet of the expander 6 is communicated with an inlet of the air compressor through a pipeline. In this embodiment, the entry of air compressor machine is introduced behind vapor through first water knockout drum and expander, when improving recovery efficiency, convenient air temperature, humidity isoparametric after further the optimal control air compressor machine compression.
Preferably, the inlet of the air compressor 3 is connected with the air filtering device 5 through a pipeline, and the downstream of the air filtering device 5 is communicated with the outlet of the second water separator 7 through a pipeline.
Example four
Based on the same technical concept as the above embodiments, the present embodiment applies the fuel cell system to a vehicle, and provides a vehicle including the fuel cell system in any of the above embodiments, because the air compressor of the fuel cell air supply device in the fuel cell system of the vehicle of the present embodiment has higher power and lower cost, and the air supply device has a simple and compact structure, the humidifier can be reduced or eliminated, the vehicle space is saved, and the vehicle performance is improved.
The use of ordinal numbers such as "first," "second," etc., in the specification and claims to modify a corresponding element does not by itself connote any ordinal number of the element or the order of one element in another, but are used merely to distinguish one element having a certain name from another element having a same name.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the method of the invention should not be construed to reflect the intent: that the invention as claimed requires more features than are expressly recited in each claim. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The fuel cell air supply device is characterized by comprising a first water separator and an air compressor, wherein the inlet of the first water separator is communicated with the outlet of the electric pile through a pipeline, the first outlet of the first water separator is communicated with the inlet of the air compressor, and the outlet of the air compressor is communicated with the inlet of an air path of the electric pile.
2. The stack tail gas-based fuel cell air supply device according to claim 1, wherein the first water separator is further provided with a second outlet, the second outlet is communicated with an inlet of an expander through a pipeline, and an outlet of the expander is communicated with an inlet of an air compressor through a pipeline.
3. The stack tail gas-based fuel cell air supply device according to claim 1, wherein an expander is disposed between the first outlet of the first water separator and the inlet of the air compressor, the first outlet of the first water separator is communicated with the inlet of the expander through a pipeline, and the outlet of the expander is communicated with the inlet of the air compressor through a pipeline.
4. The stack tail gas-based fuel cell air supply device according to claim 2 or 3, wherein a second water separator communicated with the inlet of the air compressor through a pipeline is arranged between the outlet of the expander and the inlet of the air compressor, and the second water separator is provided with an exhaust port; and/or
The air compressor is coaxially connected with the expansion machine through a motor.
5. The stack tail gas-based fuel cell air supply device according to claim 4, wherein an inlet of the air compressor is connected with an air filter device through a pipeline, and a downstream of the air filter device is communicated with an outlet of the first water divider and/or the second water divider through a pipeline.
6. The stack tail gas-based fuel cell air supply device according to claim 1, wherein the air compressor is a roots blower, a single screw air compressor, or a twin screw air compressor.
7. The stack tail gas-based fuel cell air supply device according to claim 1, wherein an intercooler is provided between an outlet of the air compressor and an inlet of the stack.
8. A fuel cell air supply method based on stack tail gas is characterized by comprising the following steps:
collecting tail gas of the galvanic pile through a water separator, and separating the tail gas to generate liquid water;
the outlet of the water separator is communicated with the inlet of the air compressor, and liquid water is introduced into the inlet of the air compressor;
and the compressed gas is input into an air path of the electric pile by using an air compressor.
9. A fuel cell system comprising a stack tail gas-based fuel cell air supply apparatus according to any one of claims 1 to 7.
10. A vehicle characterized by comprising the fuel cell system according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110028025.2A CN114759221A (en) | 2021-01-08 | 2021-01-08 | Fuel cell air supply device and method based on stack tail gas, fuel cell system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110028025.2A CN114759221A (en) | 2021-01-08 | 2021-01-08 | Fuel cell air supply device and method based on stack tail gas, fuel cell system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114759221A true CN114759221A (en) | 2022-07-15 |
Family
ID=82324846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110028025.2A Pending CN114759221A (en) | 2021-01-08 | 2021-01-08 | Fuel cell air supply device and method based on stack tail gas, fuel cell system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114759221A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575988A (en) * | 2023-05-19 | 2023-08-11 | 北京亿华通科技股份有限公司 | Expander for fuel cell system and fuel cell system |
-
2021
- 2021-01-08 CN CN202110028025.2A patent/CN114759221A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575988A (en) * | 2023-05-19 | 2023-08-11 | 北京亿华通科技股份有限公司 | Expander for fuel cell system and fuel cell system |
| CN116575988B (en) * | 2023-05-19 | 2023-12-22 | 北京亿华通科技股份有限公司 | Expander for fuel cell system and fuel cell system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111244506B (en) | New energy automobile fuel cell system, working method, hydrogen gas inlet flow calculation method and efficiency evaluation method | |
| CN106523336B (en) | A kind of air compression system team control control method | |
| KR101807015B1 (en) | Humidification device for fuel cell | |
| CN101495372A (en) | Aircraft air-conditioning unit and method for operating an aircraft air-conditioning unit | |
| CN111365298B (en) | Air cooling system of electric centrifugal air compressor | |
| CN113764700A (en) | Fuel-electric system, control method of fuel-electric system and vehicle | |
| CN214226965U (en) | Fuel cell air supply device based on stack tail gas, fuel cell system and vehicle | |
| CN112635793A (en) | Double-stack double-circulation fuel cell system | |
| CN114759221A (en) | Fuel cell air supply device and method based on stack tail gas, fuel cell system and vehicle | |
| CN111224130A (en) | Fuel cell and air supply system thereof | |
| CN112201809A (en) | Integrated fuel cell air supply system and fuel cell system | |
| CN114614048A (en) | Hydrogen fuel cell purging system and anode fluctuating hydrogen pressure purging method thereof | |
| CN115117394A (en) | Air compressor arrangement and fuel cell arrangement comprising an air compressor arrangement | |
| CN217387224U (en) | Fuel cell system based on turbine pipe | |
| CN114678573A (en) | Fuel cell system with energy recovery function and control method | |
| CN115020758B (en) | Fuel cell system, cathode energy recovery control method and device | |
| CN112197989A (en) | Fuel cell humidifier test system | |
| CN216342360U (en) | Fuel cell waste gas energy recovery system | |
| CN214705992U (en) | Air compressor unit for hydrogen fuel cell | |
| CN213936269U (en) | Fuel cell hydrogen circulation system and fuel cell | |
| JP2008215175A (en) | Compressor and fuel cell system equipped therewith | |
| CN212209662U (en) | Air double-parallel air inlet device of high-power hydrogen fuel cell engine | |
| CN210108691U (en) | Test platform of hydrogen fuel cell gas supply equipment | |
| CN214254481U (en) | Air backflow system of high-power fuel cell | |
| CN100414756C (en) | An air-humidification system of highly effective fuel battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |