CN1268024C - Compressor-expander system of fuel battery - Google Patents
Compressor-expander system of fuel battery Download PDFInfo
- Publication number
- CN1268024C CN1268024C CNB2004100262034A CN200410026203A CN1268024C CN 1268024 C CN1268024 C CN 1268024C CN B2004100262034 A CNB2004100262034 A CN B2004100262034A CN 200410026203 A CN200410026203 A CN 200410026203A CN 1268024 C CN1268024 C CN 1268024C
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- Prior art keywords
- compressor
- decompressor
- fuel cell
- split
- air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The present invention relates to a compressor-expander system of fuel batteries, which is also suitable for low-voltage fuel battery systems and high-voltage fuel battery systems. The present invention comprises a primary compressor and a secondary compressor which are used for compressing air, a motor for supplying power to the systems, an expander for recovering energy, and the parts are connected by pipelines, electromagnetic valves and electromagnetic clutches. With the functions of the electromagnetic valves and the electromagnetic clutches, the motor drives the primary compressor so as to directly supply compressed air to a Fuel battery stack corresponding to the low-voltage fuel battery systems, and the air exhausted from the fuel battery stack is directly exhausted to the atmosphere. Corresponding to the high-voltage fuel battery systems, the air is compressed by the primary compressor and continues to enter the secondary compressor for being compressed, and then the air is supplied to the fuel battery stack. The air exhausted from the fuel battery stack enters the expander for expanding and applying work, and then the air is exhausted into the atmosphere.
Description
Technical field
The invention belongs to the Compressor Technology field, particularly a kind of with the fuel cell compressor-expander system of compressed air as oxidant.
Background technology
Fuel cell be one utilize fuel (for example: hydrogen) and oxidant (for example: effect oxygen) constantly produces the electrochemical appliance of electric energy.Because of its efficient height, environmentally safe, become the key technology of energy substitution.Proton exchange membrane (PEM) fuel cell is exactly a kind of typical hydrogen a---oxygen fuel cell, can be applicable to portable power supply, stand-by power supply, and electric automobile etc.Proton Exchange Membrane Fuel Cells has the low pressure of running on and runs on two kinds of systems of high pressure.Low pressure and high-pressure system respectively have its advantage.
In fuel cell system, except fuel cell itself, also need other auxiliary devices to guarantee the reliable operation continuously of fuel cell system, one of them important auxiliary provides compressed-air actuated compressor-expander system to fuel cell exactly.For the low-voltage fuel battery system,, only just can finish with compressor owing to the pressure of the air of discharging from fuel cell is lower; And,,, often adopt decompressor to come recuperated energy in the system in order to improve the system effectiveness of fuel cell because the air that fuel cell is discharged has quite high pressure for the fuel under high pressure battery system.The pressure of fuel cell system changes with operating mode, and the expansion ratio of decompressor is constant, when the inlet pressure of decompressor is lower than design pressure, will produce overexpansion in decompressor, causes extra power consumption.
Summary of the invention
The object of the present invention is to provide a kind of simple in structurely, and decompressor can not only be applicable to low pressure but also be applicable to the compressor-expander system of fuel under high pressure battery system according to what different situations were selected.
For achieving the above object, the technical solution used in the present invention is: comprise a motor and a stage compressor that is connected with the output shaft of motor, the outlet of one stage compressor is connected with the inlet of fuel cell pack by pipeline, be characterized in, also be parallel with electromagnetically operated valve and decompressor electromagnetically operated valve on the outlet conduit of fuel cell pack, decompressor is connected with fuel cell pack by pipeline and decompressor electromagnetically operated valve, also be provided with electromagnetically operated valve on one stage compressor and the pipeline that fuel cell pack is connected, the outlet of one stage compressor also can be connected with the inlet of split-compressor by the split-compressor electromagnetically operated valve, the outlet of split-compressor is connected with the inlet of fuel cell pack by unidirectional valve, split-compressor links to each other with the output shaft of motor with transmission device by the split-compressor electromagnetic clutch again, and another output shaft of motor links to each other with decompressor by the decompressor clutch.
Another characteristics of the present invention are: motor also can directly be connected with split-compressor by the split-compressor electromagnetic clutch, another output shaft of motor is connected with decompressor with a stage compressor by transmission device, is provided with the decompressor electromagnetic clutch between decompressor and transmission device 7; Decompressor comprises the expansion chamber of being made up of movable orbiting scroll and quiet whirlpool dish, on the dish of quiet whirlpool, offer axial gas passage that is connected with expansion chamber and the radial gas passages that is connected with the air inlet of decompressor, also be set with spring and piston on the back side radial gas passages of quiet whirlpool dish, also offer the gas passage that can be connected on the piston with the axial gas passage.
Because motor of the present invention is connected with decompressor with split-compressor by electromagnetic clutch, by the electromagnetically operated valve on the pipeline is selectable a stage compressor is connected with split-compressor and decompressor again simultaneously, be applicable to that promptly low pressure is applicable to the fuel under high pressure battery system again, for the low-voltage fuel battery system, motor-driven one stage compressor, air through the one-level compressor compresses enters fuel cell pack, enters atmosphere then; For the fuel under high pressure battery system, continue to enter split-compressor after the compression of air through a stage compressor and compress, and then the fueling battery pile, the air of discharging from fuel cell pack enters decompressor expansion acting, and then enters atmosphere.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention, and wherein Fig. 1 (a) is the structural representation of the embodiment of the invention 1, and Fig. 1 (b) is the structural representation of the embodiment of the invention 2;
Fig. 2 is the structural representation of decompressor 12 of the present invention.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are described in further detail.
Embodiment 1, referring to Fig. 1 (a), Fig. 2, a stage compressor 2 that the present invention includes motor 1 and be connected with the output shaft of motor 1, the output shaft of motor 1 also links to each other with split-compressor 5 with transmission device 7 by split-compressor electromagnetic clutch 6, another output shaft of motor 1 links to each other with decompressor 12 by decompressor clutch 13, decompressor 12 comprises by movable orbiting scroll 15 and quiet whirlpool dish 16 expansion chambers of forming 14, on quiet whirlpool dish 16, offer axial gas passage 22 that is connected with expansion chamber 14 and the radial gas passages 20 that is connected with the air inlet 21 of decompressor 12, the back side of quiet whirlpool dish 16 also is set with spring 17 and piston 18, piston 18 is connected with radial gas passages 20, also offer the gas passage 19 that can be connected on the piston 18 simultaneously with axial gas passage 22, the outlet of one stage compressor 2 is respectively by being parallel with electromagnetically operated valve 3, split-compressor electromagnetically operated valve 4 is connected with the inlet of fuel cell 9 and split-compressor 5, the outlet of split-compressor 5 is connected by the inlet of unidirectional valve 8 with fuel cell pack 9, also be parallel with electromagnetically operated valve 10 and decompressor electromagnetically operated valve 11 on the outlet conduit of fuel cell pack 9, decompressor 12 is connected with fuel cell pack 9 by pipeline and decompressor electromagnetically operated valve 11.In the low-voltage fuel battery system, the course of work of the present invention is: motor 1 drives a stage compressor 2, and split-compressor electromagnetic clutch 6 and decompressor electromagnetic clutch 13 disconnect, and promptly split-compressor 5 and decompressor 12 are not worked.Split-compressor electromagnetically operated valve 4 disconnects, and electromagnetically operated valve 3 is connected, and air piles 9 through the compression of a stage compressor 2 after directly enter low-voltage fuel battery behind the electromagnetically operated valve 3.Electromagnetically operated valve 10 connections this moment, decompressor electromagnetically operated valve 11 disconnects, so the air of discharging from fuel cell pack 9 enters atmosphere behind electromagnetically operated valve 10.In the fuel under high pressure battery system, the course of work of the present invention is: motor 1 directly drives a stage compressor 2, drives split-compressor 5 by transmission device 7.Split-compressor electromagnetic clutch 6 and decompressor electromagnetic clutch 13 are connected, electromagnetically operated valve 3 and electromagnetically operated valve 10 disconnect, split-compressor electromagnetically operated valve 4 and decompressor electromagnetically operated valve 11 are connected, air compresses after split-compressor electromagnetically operated valve 4 enters split-compressor 5 through a stage compressor 2, behind unidirectional valve 8, enter fuel under high pressure battery pile 9 then, the air of discharging from fuel cell pack 9 enters decompressor 12 expansion workings behind decompressor electromagnetically operated valve 11, enter atmosphere then.The merit that produces that expands passes to a stage compressor, reaches the purpose that reclaims merit.Piston 18 in the decompressor 12 is subjected to the two-way function of inlet pressure and spring 17 power, when the actual inlet pressure of decompressor 12 air admission holes 21 is greater than or equal to the design inlet pressure of decompressor 12, because gas pressure is greater than the pressure of spring 17, this gas pressure promotes piston 18 by radial gas passages 20, make on the piston 18 gas passage 19 can not with axial passage 22 UNICOMs on the quiet whirlpool dish 16, the expansion process of gas in decompressor 12 lasts till the exhaust process of design always, when the actual inlet pressure of decompressor 12 designs inlet pressure less than it, the gas force that acts on the piston 18 reduces, piston then moves down under the effect of spring 17, axial passage 22 on the at this moment quiet whirlpool dish 16 and radial gas passages 20 UNICOMs on the piston 18, make decompressor 12 exhaust processes in advance, thereby avoided the extra power consumption that overexpansion brought.
Embodiment 2: referring to Fig. 1 (b), Fig. 2, motor 1 of the present invention directly is connected with split-compressor 5 by split-compressor electromagnetic clutch 6, another output shaft of motor 1 is connected with decompressor 12 with a stage compressor 2 by transmission device 7, be provided with decompressor electromagnetic clutch 13 between decompressor 12 and transmission device 7, other annexation and operation principle are with embodiment 1.
The present invention is by the effect of electromagnetically operated valve in the system and electromagnetic clutch, and for the low-voltage fuel battery system, motor-driven one stage compressor enters fuel cell pack through the air of one-level compressor compresses, enters atmosphere then; For the fuel under high pressure battery system, continuing to enter split-compressor after the compression of air through a stage compressor compresses, and then fueling battery pile, the air of discharging from fuel cell pack enters decompressor expansion acting, and then enter atmosphere, be applicable to that promptly low pressure is applicable to the fuel under high pressure battery system again.
Claims (2)
1, a kind of fuel cell compressor-expander system, comprise a motor [1] and a stage compressor [2] that is connected with the output shaft of motor [1], the outlet of one stage compressor [2] is connected by the inlet of pipeline with fuel cell pack [9], it is characterized in that: also be parallel with electromagnetically operated valve [10] and decompressor electromagnetically operated valve [11] on the outlet conduit of fuel cell pack [9], decompressor [12] is connected with fuel cell pack [9] by pipeline and decompressor electromagnetically operated valve [11], also be provided with electromagnetically operated valve [3] on one stage compressor [2] and the pipeline that fuel cell pack [9] is connected, the outlet of one stage compressor [2] is connected by the inlet of split-compressor electromagnetically operated valve [4] with split-compressor [5], the outlet of split-compressor [5] is connected by the inlet of unidirectional valve [8] with fuel cell pack [9], split-compressor [5] links to each other with the output shaft of transmission device [7] with motor [1] by split-compressor electromagnetic clutch [6] again, and another output shaft of motor [1] links to each other with decompressor [12] by decompressor clutch [13].
2, fuel cell compressors-expander system according to claim 1, it is characterized in that: said decompressor [12] comprises the expansion chamber of being made up of movable orbiting scroll [15] and quiet whirlpool dish [16] [14], on quiet whirlpool dish [16], offer axial gas passage [22] that is connected with expansion chamber [14] and the radial gas passages [20] that is connected with the air inlet [21] of decompressor [12], also be set with spring [17] and piston [18] on the back side radial gas passages [20] of quiet whirlpool dish [16], also offer the gas passage [19] that can be connected on the piston [18] with axial gas passage [22].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100262034A CN1268024C (en) | 2004-06-03 | 2004-06-03 | Compressor-expander system of fuel battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100262034A CN1268024C (en) | 2004-06-03 | 2004-06-03 | Compressor-expander system of fuel battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1585177A CN1585177A (en) | 2005-02-23 |
| CN1268024C true CN1268024C (en) | 2006-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100262034A Expired - Fee Related CN1268024C (en) | 2004-06-03 | 2004-06-03 | Compressor-expander system of fuel battery |
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| Country | Link |
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| CN (1) | CN1268024C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8795907B2 (en) * | 2010-02-19 | 2014-08-05 | GM Global Technology Operations LLC | Compressor system with a freewheeling expander |
| CN102996181A (en) * | 2011-09-08 | 2013-03-27 | 上海汉钟精机股份有限公司 | Open-type double screw decompressor |
| KR101985023B1 (en) * | 2012-12-26 | 2019-05-31 | 현대모비스 주식회사 | Air supply device using compressed stored hydrogen and air supply system including the same |
| CN109167087B (en) * | 2018-09-17 | 2022-05-13 | 新乡市特美特热控技术股份有限公司 | Fuel cell air management system |
| CN110649287B (en) * | 2019-09-30 | 2021-03-16 | 潍柴动力股份有限公司 | Fuel cell engine system, gas supply system thereof and control method |
| CN111911254B (en) * | 2020-06-28 | 2022-03-18 | 东风汽车集团有限公司 | Energy recovery device of fuel cell system |
| CN111952635B (en) * | 2020-08-18 | 2022-05-13 | 东风汽车集团有限公司 | Adjustable air supply device for fuel cell system |
| CN111963464A (en) * | 2020-08-27 | 2020-11-20 | 中船重工(重庆)西南装备研究院有限公司 | Self-adaptive air compressor for hydrogen fuel cell |
| CN114122454A (en) * | 2021-11-25 | 2022-03-01 | 上海捷氢科技股份有限公司 | Fuel cell and air supply system thereof |
| CN115559922A (en) * | 2022-10-14 | 2023-01-03 | 势加透博(成都)科技有限公司 | Compressor |
-
2004
- 2004-06-03 CN CNB2004100262034A patent/CN1268024C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1585177A (en) | 2005-02-23 |
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Granted publication date: 20060802 Termination date: 20100603 |