CN204333123U - The reflux in parallel of PEM fuel cell engine hydrogen system - Google Patents
The reflux in parallel of PEM fuel cell engine hydrogen system Download PDFInfo
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- CN204333123U CN204333123U CN201520007766.2U CN201520007766U CN204333123U CN 204333123 U CN204333123 U CN 204333123U CN 201520007766 U CN201520007766 U CN 201520007766U CN 204333123 U CN204333123 U CN 204333123U
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- reflux
- parallel
- injection equipment
- hydrogen
- common rail
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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 utility model discloses a kind of reflux in parallel of PEM fuel cell engine hydrogen system, before being located at galvanic pile module, comprise some groups of injection equipments, wherein, the entrance of each group of injection equipment adopts common rail structure, the outlet of each group of injection equipment adopts common rail structure, and the refluxing opening of each group injection equipment adopts common rail structure and forms a return; Described return is connected with the pile hydrogen way outlet in described galvanic pile module.Reflux of the present utility model can improve the humidification situation on pile hydrogen road, improves hydrogen utilization ratio and security of system.This device can realize the advantages such as full working scope covers, structure is simple, safe and reliable.
Description
Technical field
The utility model relates to PEM fuel cell engine field, more particularly, relates to the reflux in parallel of car, PEM fuel cell engine hydrogen system peculiar to vessel.
Background technology
PEM fuel cell engine system is a kind of Blast Furnace Top Gas Recovery Turbine Unit (TRT), and the chemical energy in fuel (normally hydrogen or methyl alcohol) is directly changed into electric energy by electrochemical reaction by it.Different with traditional Blast Furnace Top Gas Recovery Turbine Unit (TRT), it does not need first to convert the chemical energy in fuel to heat energy, and then converts electric energy to.Therefore, to have energy conversion efficiency high for fuel cell compared with traditional Blast Furnace Top Gas Recovery Turbine Unit (TRT), the remarkable advantage of non-pollutant discharge.
Research shows, to be suitably humidified the performance and life-span that can significantly improve Proton Exchange Membrane Fuel Cells to hydrogen, but the excessive moisture performance of pile and the durability of also causing of anode declines.The water management of negative electrode, anode is the key subject of Proton Exchange Membrane Fuel Cells research and development all the time.The water that during fuel cell operation, negative electrode generates can anode spread, the performance of the accumulation pile due to water and impurity after a period of time can decline, this just needs the operation of " purging ", utilize higher gas flow rate that impurity and aqueous water are discharged pile instantaneously, a large amount of hydrogen is also discharged in the lump simultaneously, causes hydrogen to waste and potential safety hazard.On the other hand, due to the particularity of hydrogen, at present also more effective solution is not had to the humidification of the hydrogen of Proton Exchange Membrane Fuel Cells especially car, marine fuel battery.
At present, the PEM fuel cell engine reflux that especially car, marine fuel battery engine system adopt generally adopts electronic reflux pump.The reflux weak point of prior art is:
1) electronic reflux pump is driven by motor, needs to consume electric energy, influential system efficiency;
2) operation of electronic reflux pump needs to control motor speed, and complex structure, affects reliability.
Utility model content
For the defect existed in prior art, the purpose of this utility model is to provide a kind of reflux in parallel of PEM fuel cell engine hydrogen system, the humidification situation on fuel battery engines hydrogen road can be improved, improve the utilization of fuel battery engine system life-span, fail safe and fuel.
For achieving the above object, the utility model adopts following technical scheme:
A kind of reflux in parallel of PEM fuel cell engine hydrogen system, before being located at galvanic pile module, comprise some groups of injection equipments, wherein, the entrance of each group of injection equipment adopts common rail structure, the outlet of each group of injection equipment adopts common rail structure, and the refluxing opening of each group injection equipment adopts common rail structure and forms a return; Described return is connected with the pile hydrogen way outlet in described galvanic pile module.
Described injection equipment comprises inlet solenoid valve, return flow solenoid valve and injector, and the output of described inlet solenoid valve is connected with the arrival end of described injector, and the output of described return flow solenoid valve is connected with the reflux inlet end of described injector.
Described reflux in parallel adopts stainless steel or engineering plastics.
Compared with prior art, adopt the reflux in parallel of a kind of PEM fuel cell engine hydrogen system of the present utility model, by controlling the switch of inlet solenoid valve in different injection equipment and return flow solenoid valve, forming multiple combination, meeting different working condition requirement.
In a word, reflux in parallel of the present utility model can improve the humidification situation on pile hydrogen road, improves hydrogen utilization ratio and security of system.This device can realize the advantages such as full working scope covers, structure is simple, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present utility model;
Fig. 2 is the structural representation of the injection equipment in Fig. 1;
Fig. 3 is the application schematic diagram of embodiment of the present utility model.
Embodiment
The technical solution of the utility model is further illustrated below in conjunction with drawings and Examples.
Refer to the reflux in parallel of a kind of PEM fuel cell engine hydrogen system shown in Fig. 1, Fig. 2, before being arranged in the galvanic pile module of PEM fuel cell engine system as shown in Figure 3.Adopt parallel way set to form by 2 groups of injection equipments, injection equipment forms primarily of inlet solenoid valve 1, return flow solenoid valve 2, injector 3, and metal or engineering plastics can be adopted to be made.Its entrance of device of 2 groups of injection equipments composition, outlet and refluxing opening all adopt common rail mode integrated, only have each one of entrance, outlet and refluxing opening with the interface of outside; Flow direction is unidirectional, and installation site and the angle of this reflux in parallel are without any restrictions.
The control inlet solenoid valve 1 that runs through of reflux in parallel of the present utility model realizes with return flow solenoid valve 2.When the reflux of 2 groups of injection equipment compositions runs, by controlling the inlet solenoid valve 1 in different injection equipment and the switch of return flow solenoid valve 2, forming multiple combination, meeting different working condition requirement.
It should be noted that, in the reflux of 2 groups of injection equipment compositions, the injector of different injection equipment can be same specification or different size.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the purpose of this utility model is described, and be not used as restriction of the present utility model, as long as in essential scope of the present utility model, the change of the above embodiment, modification all will be dropped in the scope of claim of the present utility model.
Claims (3)
1. a reflux in parallel for PEM fuel cell engine hydrogen system, before being located at galvanic pile module, is characterized in that,
Comprise some groups of injection equipments, wherein, the entrance of each group injection equipment adopts common rail structure, and the outlet of each group injection equipment adopts common rail structure, and the refluxing opening of each group injection equipment adopts common rail structure and forms a return; Described return is connected with the pile hydrogen way outlet in described galvanic pile module.
2. reflux in parallel according to claim 1, is characterized in that,
Described injection equipment comprises inlet solenoid valve, return flow solenoid valve and injector, and the output of described inlet solenoid valve is connected with the arrival end of described injector, and the output of described return flow solenoid valve is connected with the reflux inlet end of described injector.
3. reflux in parallel according to claim 1, is characterized in that,
Described reflux in parallel adopts stainless steel or engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007766.2U CN204333123U (en) | 2015-01-06 | 2015-01-06 | The reflux in parallel of PEM fuel cell engine hydrogen system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007766.2U CN204333123U (en) | 2015-01-06 | 2015-01-06 | The reflux in parallel of PEM fuel cell engine hydrogen system |
Publications (1)
| Publication Number | Publication Date |
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| CN204333123U true CN204333123U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007766.2U Active CN204333123U (en) | 2015-01-06 | 2015-01-06 | The reflux in parallel of PEM fuel cell engine hydrogen system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204333123U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784930A (en) * | 2017-02-24 | 2017-05-31 | 安徽康诺新能源汽车技术有限公司 | Double spray hydrogen injector devices of Fuel Cell Vehicle Powertrain |
| CN109244507A (en) * | 2018-09-11 | 2019-01-18 | 大连锐格新能源科技有限公司 | A kind of fuel cell hydrogen reflow method |
| CN109728327A (en) * | 2019-02-26 | 2019-05-07 | 河北工业大学 | Common-rail injection system and fuel cell system and vehicle with it |
-
2015
- 2015-01-06 CN CN201520007766.2U patent/CN204333123U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784930A (en) * | 2017-02-24 | 2017-05-31 | 安徽康诺新能源汽车技术有限公司 | Double spray hydrogen injector devices of Fuel Cell Vehicle Powertrain |
| CN109244507A (en) * | 2018-09-11 | 2019-01-18 | 大连锐格新能源科技有限公司 | A kind of fuel cell hydrogen reflow method |
| CN109244507B (en) * | 2018-09-11 | 2023-06-27 | 大连锐格新能源科技有限公司 | Fuel cell hydrogen reflux method |
| CN109728327A (en) * | 2019-02-26 | 2019-05-07 | 河北工业大学 | Common-rail injection system and fuel cell system and vehicle with it |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |