CN110459788B - Hydrogen recovery device of fuel cell system - Google Patents
Hydrogen recovery device of fuel cell system Download PDFInfo
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- CN110459788B CN110459788B CN201910874486.4A CN201910874486A CN110459788B CN 110459788 B CN110459788 B CN 110459788B CN 201910874486 A CN201910874486 A CN 201910874486A CN 110459788 B CN110459788 B CN 110459788B
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 147
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 147
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 239000000446 fuel Substances 0.000 title claims abstract description 76
- 238000011084 recovery Methods 0.000 title claims abstract description 26
- 230000006835 compression Effects 0.000 claims abstract description 47
- 238000007906 compression Methods 0.000 claims abstract description 47
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 125000006850 spacer group Chemical group 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 7
- 238000005339 levitation Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- H01M8/04—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
-
- 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
- H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
-
- 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
- H01M8/04201—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
- 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)
- Sustainable Development (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A fuel cell system hydrogen recovery apparatus comprising: the turbine driving device is provided with an air input port; the hydrogen compression device is in driving connection with the turbine driving device and is provided with a hydrogen inlet and a hydrogen outlet; the fuel cell is provided with an input end of hydrogen, an output end of hydrogen, an input end of air and an output end of air, wherein the input end of hydrogen of the fuel cell is communicated with a hydrogen outlet of the hydrogen compression device, the hydrogen output end of the fuel cell is communicated with a hydrogen inlet of the hydrogen compression device, and the air output end of the fuel cell is communicated with an air input port of the turbine driving device. By adopting the hydrogen recovery device of the fuel cell system, the self-consumption of the fuel cell engine is reduced, the power density of the fuel cell engine system is increased, and the net power output of the fuel cell is increased.
Description
Technical Field
The invention relates to the technical field of hydrogen recovery, in particular to a hydrogen recovery device of a fuel cell system.
Background
The hydrogen fuel cell uses hydrogen as a reducing agent and oxygen as an oxidizing agent, and converts chemical energy into electric energy through the combustion reaction of the fuel. When the oxyhydrogen fuel cell is operated, hydrogen gas is supplied to the hydrogen electrode while oxygen gas is supplied to the oxygen electrode. The hydrogen and oxygen produce water through electrolyte under the action of catalyst on the electrode. At this time, the hydrogen electrode is charged negatively by the excess electrons, and the oxygen electrode is charged positively by the lack of electrons. This combustion-like reaction process can continue after the circuit is completed.
In the working process of the hydrogen fuel cell engine system, the residual hydrogen discharged can be recovered for secondary recycling, in the prior art, a compression device driven by a high-speed motor is used for recovery, the power is 400-1000W, the self-consumption power of the fuel cell system can be increased, the power density of the fuel cell engine is reduced, the net power output of the fuel cell is reduced, a dynamic sealing element between a motor and a compressor is easy to damage, the risks of hydrogen leakage and lubricating medium leakage exist, and the potential safety hazard of burning or explosion when exposed fire occurs.
Disclosure of Invention
The invention aims to provide a hydrogen recovery device of a fuel cell system driven by exhaust energy of air tail gas of a fuel cell.
In order to solve the above problems, the present invention provides a hydrogen recovery apparatus of a fuel cell system, comprising: the turbine driving device is provided with an air input port; the hydrogen compression device is in driving connection with the turbine driving device and is provided with a hydrogen inlet and a hydrogen outlet; the fuel cell is provided with an input end of hydrogen, an output end of hydrogen and an output end of air, wherein the input end of hydrogen is communicated to the hydrogen outlet, the output end of hydrogen is communicated to the hydrogen inlet, and the output end of air is communicated to the air inlet. Further, the device also comprises a connecting device; one end of the connecting device is connected to the center of the impeller of the turbine driving device, and the other end of the connecting device is connected to the center of the impeller of the hydrogen compression device, so that the turbine driving device drives the hydrogen compression device to rotate.
Further, the turbine driving device further comprises an air outlet, and the air outlet outputs air in the turbine driving device to the atmosphere.
Further, the hydrogen compressor further comprises a permanent magnet driving device which is arranged between the turbine driving device and the hydrogen compression device; the permanent magnet driving device includes: the device comprises a first connecting rod, an inner magnetic rotor, a spacer bush, an outer magnetic rotor and a second connecting rod; one end of the first connecting rod is connected to the center of an impeller of the hydrogen compression device, and the other end of the first connecting rod is connected with the inner magnetic rotor; the isolation sleeve is sleeved outside the inner magnetic rotor; one end of the outer magnetic rotor is embedded with one end of the second connecting rod, and the other end of the outer magnetic rotor is sleeved outside the isolation sleeve, is provided with a gap with the isolation sleeve and is arranged corresponding to the inner magnetic rotor; the other end of the second connecting rod is connected to the center of an impeller of the turbine driving device, so that the outer magnetic rotor rotates and drives the inner magnetic rotor to rotate through magnetic force.
Further, the permanent magnet driving device further includes: the permanent magnet electromagnetic coupling magnetic suspension bearing is arranged between the hydrogen compression device and the turbine driving device and sleeved outside the first connecting rod; and/or the permanent magnet electromagnetic coupling magnetic suspension bearing is sleeved outside the second connecting rod.
Further, the permanent magnet driving device is provided with four permanent magnet electromagnetic coupling magnetic levitation bearings; the two permanent magnet electromagnetic coupling magnetic suspension bearings are sleeved outside the first connecting rod and are respectively arranged at two sides of the impeller of the hydrogen compression device; the two permanent magnet electromagnetic coupling magnetic suspension bearings are sleeved outside the second connecting rod and are respectively arranged on two sides of the impeller of the turbine driving device.
Further, the hydrogen pressure ratio between the hydrogen outlet and the hydrogen inlet of the hydrogen compression device is 0.2-2 times.
Further, the turbine driving device is a turbine expander; and/or the hydrogen compression device is a centrifugal hydrogen compressor.
Further, the permanent magnet driving device further includes: the sealing ring is arranged between the isolating sleeve and the shell of the hydrogen compression device.
Further, a condensed water discharge port is arranged at the bottom of the hydrogen compression device and is communicated with an external automatic drainer, so that water generated by the hydrogen compression device is discharged.
The invention also provides a fuel cell engine system comprising the fuel cell system hydrogen recovery device and the fuel cell engine according to any one of claims 1 to 9; the hydrogen recovery device of the fuel cell system recovers the hydrogen containing water and vapor discharged by the fuel cell engine to the hydrogen inlet of the fuel cell, and meets the requirement of the pressure of the hydrogen inlet.
The technical scheme of the invention has the following beneficial technical effects: the use of exhaust energy from the fuel cell air exhaust to drive the turbine drive reduces the self-consumed power of the fuel cell, increases the power density of the fuel cell engine system, and increases the net power output of the fuel cell.
Drawings
Fig. 1 is a combination diagram of a hydrogen recovery device of a fuel cell system according to the present embodiment;
fig. 2 is an exploded view of a hydrogen recovery device of a fuel cell system according to the present embodiment.
Reference numerals:
1: a turbine driving device; 11: an air inlet; 12: an air outlet; 2: a hydrogen compression device; 21: a hydrogen inlet; 22: a hydrogen outlet; 23: a housing of the hydrogen compression device; 3: a permanent magnet driving device; 31: a first connecting rod; 32: an inner magnetic rotor; 33: a spacer sleeve; 34: an outer magnetic rotor; 35: permanent magnet electromagnetic coupling magnetic bearing; 36: and (3) sealing rings.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
Fig. 1 is a combination diagram of a hydrogen recovery device of a fuel cell system according to the present embodiment.
Fig. 2 is an exploded view of a hydrogen recovery device of a fuel cell system according to the present embodiment.
As shown in fig. 1-2, the present embodiment provides a hydrogen recovery device for a fuel cell system, which comprises a fuel cell, a turbine driving device 1, a hydrogen compression device 2 and a permanent magnet driving device 3. The method comprises the following steps:
the fuel cell communicates with the turbine driving device 1 and the hydrogen compression device 2, respectively.
The fuel cell is provided with a hydrogen input end, a hydrogen output end and an air output end, and the turbine driving device 1 is provided with an air input port 11 and an air output port 12. The air output end of the fuel cell is communicated with the air input port 11 of the turbine driving device 1, and the rest air is input into the turbine driving device 1; the air outlet 12 of the turbine driving device 1 communicates with the atmosphere, and outputs the air in the turbine driving device 1 to the atmosphere. The air pressure input from the fuel cell to the turbine driving device 1 is greater than the atmospheric pressure, and a pressure difference is generated, thereby rotating the impeller of the turbine driving device 1.
The turbine driving device 1 is in driving connection with the hydrogen compression device 2 through the permanent magnet driving device 3. One end of the permanent magnet driving device 3 is connected to the center of the impeller of the turbine driving device 1, and the other end is connected to the center of the impeller of the hydrogen compressing device 2, so that the turbine driving device 1 drives the hydrogen compressing device 2 to rotate.
The hydrogen compression device 2 is provided with a hydrogen inlet 21 and a hydrogen outlet 22. The hydrogen input end of the fuel cell is communicated with the hydrogen outlet 22 of the hydrogen compression device 2, and the hydrogen output end is communicated with the hydrogen inlet 21. The fuel cell inputs the hydrogen which is not consumed into the hydrogen compression device 2, the impeller of the hydrogen compression device 2 rotates rapidly, and the hydrogen is returned to the fuel cell engine for continuous use after being boosted.
The turbo-driving device 1 may employ a turbo-expander, and/or the hydrogen compression device 2 may employ a centrifugal hydrogen compressor, without limitation.
In another embodiment, a permanent magnet drive 3 is also provided, which is arranged between the turbine drive 1 and the hydrogen compression device 2; the permanent magnet drive device 3 includes: the magnetic head comprises a first connecting rod 31, an inner magnetic rotor 32, a spacer 33, an outer magnetic rotor 34 and a second connecting rod. One end of the first connecting rod 31 is connected to the center of the impeller of the hydrogen compression device 2, and the other end thereof is connected to the inner magnetic rotor 32; the isolating sleeve 33 is sleeved outside the inner magnetic rotor 32.
The inner magnetic rotor 32 has an inner hollow cylindrical structure, and the first connecting rod 31 is disposed at a middle position thereof. The outer surface of the cylindrical structure is provided with one or more permanent magnetic strips which are axially the same as the cylindrical structure. The spacer 33 is also of a cylindrical structure, and the inner magnetic rotor 32 is wrapped inside the spacer 33.
The outer magnetic rotor 34 has a cylindrical structure at both ends thereof. One end of the outer magnetic rotor 34 is embedded with one end of a second connecting rod, and the other end of the second connecting rod is connected to the center of the impeller of the turbine driving device 1.
The other end of the outer magnetic rotor 34 is sleeved outside the isolating sleeve 33, and the isolating sleeve 33 isolates the inner magnetic rotor 32 from the outer magnetic rotor 34. The inner diameter of the outer magnetic rotor 34 is larger than the outer diameter of the spacer 33, so that a certain gap is formed between the outer magnetic rotor 34 and the spacer 33. The inner diameter of one end of the outer magnetic rotor 34, which is sleeved with the spacer 33, is larger than the inner diameter of one end, which is provided with the second connecting rod. The outer magnetic rotor 34 is disposed corresponding to the inner magnetic rotor 32; the inner surface of the cylindrical structure of the outer magnet rotor 34 is provided with one or more permanent magnet strips. These permanent magnet strips are arranged opposite to the permanent magnet strips of the inner magnet rotor 32. The polarities of the two magnetic stripes of the inner rotor and the outer rotor are the same, and the two magnetic stripes can be S poles or N poles at the same time. This arrangement allows the outer magnet rotor 34 to rotate while simultaneously magnetically driving the inner magnet rotor 32.
In another embodiment, unlike the previous embodiment, the hydrogen pressure at the hydrogen outlet 22 of the hydrogen compression device 2 is 0.2-2 times the hydrogen pressure at the hydrogen inlet 21; and/or the pressure of the air at the air inlet 11 of the turbine drive 1 is 1-2 times the pressure of the air at the air outlet 12.
In another embodiment, unlike the previous embodiment, the permanent magnet driving device 3 further includes: the permanent magnet is electromagnetically coupled to the magnetic bearing 35. The permanent magnetic electromagnetic coupling magnetic suspension bearing 35 is disposed between the hydrogen compression device 2 and the turbine driving device 1, and may be sleeved outside the first connecting rod 31 or outside the second connecting rod, or may be sleeved outside the first connecting rod 31 and outside the second connecting rod. The arrangement can reduce friction of the permanent magnet driving device 3 in the rotating process, so that the permanent magnet driving device 3 rotates more smoothly. It should be noted that the position of the permanent magnet electromagnetic coupling magnetic bearing 35 is not fixed, and may be set at any position of the permanent magnet driving device 3.
In another embodiment, unlike the previous embodiment, the permanent magnet driving device 3 is provided with four permanent magnet electromagnetic coupling magnetic bearing 35; wherein two permanent magnet electromagnetic coupling magnetic levitation bearings 35 are sleeved outside the first connecting rod 31 and are respectively arranged at two sides of the impeller of the hydrogen compression device 2; the other two permanent magnet electromagnetic coupling magnetic suspension bearings 35 are sleeved outside the second connecting rod and are respectively arranged at two sides of the impeller of the turbine driving device 1.
In another embodiment, unlike the previous embodiment, the permanent magnet driving device 3 is provided with two permanent magnet electromagnetic coupling magnetic levitation bearings 35, and the two permanent magnet electromagnetic coupling magnetic levitation bearings 35 are sleeved outside the first connecting rod 31 and are respectively arranged at two sides of the impeller of the hydrogen compressing device 2.
In another embodiment, unlike the previous embodiment, the permanent magnetic driving device 3 is provided with two permanent magnetic electromagnetic coupling magnetic bearing 35, and the two permanent magnetic electromagnetic coupling magnetic bearing 35 are sleeved outside the second connecting rod and are respectively arranged at two sides of the impeller of the turbine driving device 1.
In another embodiment, unlike the previous embodiment, the bottom of the hydrogen compression device 2 is provided with a condensed water discharge port, which is communicated with an external automatic drainer, so that water generated by the hydrogen compression device 2 is automatically drained at any time, and only the water is drained without leakage.
In another embodiment, unlike the previous embodiment, the fuel cell system hydrogen recovery device is further provided with a seal ring 36, the seal ring 36 is disposed between the spacer 33 and the housing of the hydrogen compression device 2, so that the housing of the hydrogen compression device 2 and the spacer 33 are tightly attached, and at the same time, the spacer 33 is ensured to be a relatively sealed space, the spacer 33 is non-magnetic and non-conductive, the inner magnetic rotor 32 and the outer magnetic rotor 34 are ensured to rotate simultaneously, and hydrogen leakage is prevented.
The invention also provides a fuel cell engine system, which comprises a fuel cell system hydrogen recovery device and a fuel cell engine; the hydrogen recovery device of the fuel cell system recovers the hydrogen containing water and steam discharged by the fuel cell engine to the hydrogen inlet of the fuel cell, and meets the requirement of the pressure of the hydrogen inlet.
The technical scheme of the invention specifically works as follows:
the fuel cell inputs air into the turbine driving device 1, the air drives the impeller of the turbine driving device 1 to rotate, the rotating impeller drives the outer magnetic rotor 34 which is in driving connection with the impeller to rotate, the outer magnetic rotor 34 drives the inner magnetic rotor 32 to rotate by utilizing magnetic field force, the inner magnetic rotor 32 drives the impeller of the hydrogen compression device 2 which is in driving connection with the inner magnetic rotor to rotate quickly, low-pressure hydrogen which is input into the hydrogen compression device 2 from the fuel cell is subjected to increasing treatment, and then the pressurized hydrogen is input back into the fuel cell.
The technical scheme of the invention has the following beneficial technical effects: the use of exhaust energy from the fuel cell air exhaust to drive the turbine drive 1 reduces the self-consumed power of the fuel cell, increases the power density of the fuel cell engine system, and increases the net power output of the fuel cell.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and are in no way limiting of the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (9)
1. A fuel cell system hydrogen recovery apparatus, comprising:
a turbine driving device (1) provided with an air input port (11);
the hydrogen compression device (2) is in driving connection with the turbine driving device (1) and is provided with a hydrogen inlet (21) and a hydrogen outlet (22);
the fuel cell is provided with a hydrogen input end, a hydrogen output end and an air output end, wherein the hydrogen input end is communicated to the hydrogen outlet (22), the hydrogen output end is communicated to the hydrogen inlet (21), the air output end is communicated to the air input port (11), and the fuel cell further comprises a permanent magnet driving device (3) which is arranged between the turbine driving device (1) and the hydrogen compression device (2);
the permanent magnet driving device (3) comprises: the device comprises a first connecting rod (31), an inner magnetic rotor (32), a spacer bush (33), an outer magnetic rotor (34) and a second connecting rod; wherein,
one end of the first connecting rod (31) is connected to the center of an impeller of the hydrogen compression device (2), and the other end of the first connecting rod is connected with the inner magnetic rotor (32);
the isolation sleeve (33) is sleeved outside the inner magnetic rotor (32);
one end of the outer magnetic rotor (34) is embedded with one end of the second connecting rod, the other end of the outer magnetic rotor is sleeved outside the isolation sleeve (33), a gap is formed between the outer magnetic rotor and the isolation sleeve (33), and the outer magnetic rotor and the inner magnetic rotor (32) are correspondingly arranged; the other end of the second connecting rod is connected to the center of an impeller of the turbine driving device (1); the outer magnetic rotor (34) is rotated and the inner magnetic rotor (32) is driven to rotate by magnetic force.
2. The fuel cell system hydrogen recovery apparatus according to claim 1, wherein the turbine driving apparatus (1) further comprises an air outlet (12),
the air outlet (12) outputs air in the turbine driving device (1) to the atmosphere.
3. The fuel cell system hydrogen recovery apparatus according to claim 1, wherein the permanent magnet driving apparatus (3) further comprises:
a permanent magnet electromagnetic coupling magnetic suspension bearing (35) which is arranged between the hydrogen compression device (2) and the turbine driving device (1) and sleeved outside the first connecting rod (31); and/or the permanent magnet electromagnetic coupling magnetic suspension bearing (35) is sleeved outside the second connecting rod.
4. A fuel cell system hydrogen recovery apparatus according to claim 3, wherein said permanent magnet drive means (3) is provided with four of said permanent magnet electromagnetic coupling magnetic levitation bearings (35);
the two permanent magnet electromagnetic coupling magnetic suspension bearings (35) are sleeved outside the first connecting rod (31) and are respectively arranged at two sides of the impeller of the hydrogen compression device (2);
two permanent magnet electromagnetic coupling magnetic suspension bearings (35) are sleeved outside the second connecting rod and are respectively arranged on two sides of an impeller of the turbine driving device (1).
5. The hydrogen reclamation apparatus for a fuel cell system as recited in claim 1, characterized in that,
the hydrogen pressure ratio at the hydrogen outlet (22) and the hydrogen inlet (21) of the hydrogen compression device (2) is 0.2-2 times.
6. The hydrogen reclamation apparatus for a fuel cell system as recited in claim 1, characterized in that,
the turbine driving device (1) is a turbine expander; and/or the number of the groups of groups,
the hydrogen compression device (2) is a centrifugal hydrogen compressor.
7. The fuel cell system hydrogen recovery apparatus according to claim 1, wherein the permanent magnet driving apparatus (3) further comprises:
and a sealing ring (36) arranged between the isolation sleeve (33) and the shell of the hydrogen compression device (2).
8. The hydrogen reclamation apparatus of the fuel cell system as recited in claim 1, characterized in that a condensed water discharge port is provided at the bottom of the hydrogen compression apparatus (2), and the condensed water discharge port is communicated with an external automatic drainer to discharge water generated by the hydrogen compression apparatus (2).
9. A fuel cell system comprising the fuel cell system hydrogen recovery apparatus of any one of claims 1 to 8 and a fuel cell engine;
the hydrogen recovery device of the fuel cell system recovers the hydrogen containing water and vapor discharged by the fuel cell engine to the hydrogen inlet of the fuel cell, and meets the requirement of the pressure of the hydrogen inlet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910791803 | 2019-08-26 | ||
| CN2019107918036 | 2019-08-26 |
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| CN110459788A CN110459788A (en) | 2019-11-15 |
| CN110459788B true CN110459788B (en) | 2024-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111342092B (en) * | 2020-02-15 | 2021-02-12 | 江苏大学 | A vehicle fuel cell exhaust gas treatment device and method based on intelligent control |
| CN112377432A (en) * | 2020-10-27 | 2021-02-19 | 北京新能源汽车技术创新中心有限公司 | Circulating pump, circulating device and fuel cell system |
| CN113764700B (en) * | 2021-08-09 | 2023-03-31 | 东风汽车集团股份有限公司 | Fuel-electric system, control method of fuel-electric system and vehicle |
| CN114914483B (en) * | 2022-07-14 | 2022-10-11 | 深圳市世椿智能装备股份有限公司 | Hydrogen recovery device of fuel cell system |
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