CN212209662U - Air double-parallel air inlet device of high-power hydrogen fuel cell engine - Google Patents
Air double-parallel air inlet device of high-power hydrogen fuel cell engine Download PDFInfo
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- CN212209662U CN212209662U CN202021235027.6U CN202021235027U CN212209662U CN 212209662 U CN212209662 U CN 212209662U CN 202021235027 U CN202021235027 U CN 202021235027U CN 212209662 U CN212209662 U CN 212209662U
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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 two parallelly connected air inlet unit of high-power hydrogen fuel cell engine air, including the air compressor unit, the air compressor machine that the air compressor unit adopted two or many parallelly connected settings, when the engine operation, the air passes through air cleaner, the air throttle that admits air, the acoustics amortization subassembly of admitting air, two unification pipeline subassemblies that admit air reach the air compressor machine air inlet, loop through behind the pressurization muffler after the pressurization, two unification pipelines, intercooler and humidifier get into fuel cell and pile the part and participate in the reaction, tail gas after the reaction is through tail discharge throttle valve, discharge behind air bypass intake valve subassembly and the exhaust subassembly. The air inlet device adopts the matching mode that the auxiliary components are connected in series and combined for air inlet, and the core components are connected in parallel to improve the air inlet capacity, so that the air supply problem of a high-power engine system is improved and solved, and the requirements of a high-power fuel cell are met on key performance parameters such as air inlet flow, pressure ratio and the like. Meanwhile, the reliability and the durability of the system are improved, and the cost is saved.
Description
Technical Field
The utility model relates to a fuel cell structure application, concretely relates to two parallelly connected air inlet unit of high-power hydrogen fuel cell engine air.
Background
The development of hydrogen fuel cells is receiving social attention, and hydrogen energy is also called "the ultimate energy of the twenty-first century". Hydrogen and oxygen are used to directly convert the chemical energy of the fuel into electrical energy through a galvanic pile, and the generated electrical energy is used to drive vehicles and social applications. The high-power fuel cell is concerned by various social circles at present, and is mainly applied to scenes with large power requirements, such as heavy trucks, ships and the like. The air supply system as a fuel cell is additionally important. With the continuous development and development of new energy technology, the application of the air compressor at present tends to be mature more and more, the single machine technology is continuously innovated, and the brands at home and abroad are rich. Lays a solid foundation for the development of core parts of the hydrogen fuel cell.
The air compressor machine that commonly uses on the existing market mainly divide into: screw type, Roots type and centrifugal type. However, the core parameters of the air compressor, such as flow, pressure ratio, power consumption and the like, are limited in the current application range, and the requirements of a high-power fuel cell engine on the flow and the pressure ratio are difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model provides a two parallelly connected air inlet unit of high-power hydrogen fuel cell engine air has thoroughly solved the problem that prior art cavity press is difficult to satisfy the core parameter demands such as high-power fuel cell engine to air flow.
In order to achieve the above object, the utility model adopts the following technical scheme:
a kind of high-power hydrogen fuel cell engine air double parallel air inlet unit, including air compressor machine air inlet main road circulation part, fuel cell pile part;
the air compressor machine main circuit circulation part that admits air includes air inlet assembly, air inlet throttle valve, air compressor unit, intercooler, humidifier, tail row throttle valve and exhaust subassembly, air compressor unit includes two or many air compressors, parallelly connected setting, and air compressor unit's air inlet is through admitting air throttle valve connection air inlet assembly, and intercooler, humidifier, fuel cell stack part, tail row throttle valve and exhaust subassembly are connected in proper order to the gas outlet, and the flowmeter is all installed to the air inlet department of every air compressor machine, and muffler after the pressure boost is all installed to gas outlet department.
Preferably as above-mentioned scheme, the subassembly that admits air includes air intake duct, air cleaner, the acoustics amortization subassembly that admits air, air cleaner's air inlet and air intake duct intercommunication, the gas outlet in proper order with admit air throttle and admit air acoustics amortization subassembly after connecting two or more branch pipelines, every branch pipeline communicates with the air inlet of an air compressor machine respectively.
Preferably, the exhaust assembly comprises an air tail exhaust and a tail exhaust silencer, the air tail exhaust is communicated with a tail gas outlet of the fuel cell stack component through a humidifier, a tail exhaust throttle valve is arranged between the air tail exhaust and the humidifier, and the tail exhaust silencer is arranged between the air tail exhaust and the tail exhaust throttle valve.
Preferably, the exhaust muffler further comprises an air bypass valve, wherein an inlet of the air bypass valve is connected to a connecting pipeline between an air outlet of the air compressor unit and an air inlet of the intercooler, and an outlet of the air bypass valve is connected to a connecting pipeline between the exhaust throttle valve and the exhaust muffler.
Preferably, the air compressor further comprises air compressor controllers, and each air compressor is connected with one air compressor controller.
Preferably, the air compressor auxiliary circuit circulating component comprises a centrifugal cooling water pump, a radiator and a return water tank, a water inlet of the return water tank is connected with the intercooler, a water outlet of the return water tank is connected with the radiator through the centrifugal cooling water pump, a water outlet of the radiator is respectively connected with the air compressor controller and the intercooler, and cooling water in the air compressor controller flows back to the return water tank after passing through the air compressor.
Due to the structure, the beneficial effects of the utility model reside in that:
1. the air double-parallel air inlet device of the high-power hydrogen fuel cell engine improves and solves the air supply problem of a high-power engine system, and meets the requirements of a high-power fuel cell on key performance parameters such as air inlet flow, pressure ratio and the like;
2. the air double-parallel air inlet device of the high-power hydrogen fuel cell engine adopts the matching mode that the auxiliary components (air inlet and exhaust air collection) are combined in series to realize air inlet, and the core component (air compressor unit) is connected in parallel to improve the air inlet capacity, so that the reliability and durability of the system are improved while the application requirements are met, the cost is greatly saved and improved, the fatal defect of insufficient air supply of the high-power hydrogen fuel cell engine is really overcome, and the technical blank of industry development is filled.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the present embodiment provides an air double-parallel air intake device for a high-power hydrogen fuel cell engine, which includes an air compressor main intake path circulating component 1, an air compressor auxiliary path circulating component 2, and a fuel cell stack component 3;
the air compressor machine main air intake path circulating component 1 comprises an air intake component, an air intake throttle 13, an air compressor unit, an intercooler 17, a humidifier 18, a tail exhaust throttle 20 and an exhaust component, wherein the air compressor unit comprises two or more air compressors 16 which are arranged in parallel, an air inlet of the air compressor unit is connected with the air intake component through the air intake throttle 13, an air outlet is sequentially connected with the intercooler 17, the humidifier 18, the fuel cell stack component 3, the tail exhaust throttle 20 and the exhaust component, a flow meter 15 is installed at an air inlet of each air compressor, and a pressurized silencer 19 is installed at an air outlet.
In this embodiment, the air intake assembly includes air intake duct 11, air cleaner 12, the acoustics of admitting air amortization subassembly 14, the air inlet and the air intake duct 11 intercommunication of air cleaner 12, the gas outlet in proper order with admit air throttle 13 and admit air acoustics amortization subassembly 14 intercommunication back and connect two or more branch pipelines, every branch pipeline communicates with the air inlet of an air compressor machine 16 respectively. The setting of the air inlet throttle valve 13 can better control the air inlet quantity and the humidity degree of the inlet air.
In this embodiment, the exhaust assembly includes an air exhaust 22 and an exhaust muffler 21, the air exhaust 22 is communicated with the exhaust outlet of the fuel cell stack component 3 through the humidifier 18, an exhaust throttle 20 is disposed between the air exhaust 22 and the humidifier 18, and the exhaust muffler 21 is disposed between the air exhaust 22 and the exhaust throttle 20.
In this embodiment, the system further comprises an air bypass valve 23, wherein an inlet of the air bypass valve 23 is connected to a connecting pipeline between an air outlet of the air compressor set and an air inlet of the intercooler 17, and an outlet of the air bypass valve 23 is connected to a connecting pipeline between the tail throttle valve 20 and the tail silencer 21. By controlling the flow rate of the air bypass valve 23, the amount of air entering the system can be controlled.
In the present embodiment, an air compressor controller 24 is further included, and one air compressor controller 24 is connected to each air compressor 16.
The air compressor auxiliary circuit circulating part 2 comprises a centrifugal cooling water pump 201, a radiator 202 and a water return water tank 203, wherein a water inlet of the water return water tank 203 is connected with an intercooler 17, a water outlet of the water return water tank 203 is connected with the radiator 202 through the centrifugal cooling water pump 201, a water outlet of the radiator 202 is respectively connected with an air compressor controller 24 and the intercooler 17, and cooling water in the air compressor controller 24 flows back to the water return water tank 203 after passing through an air compressor 16.
The air inlet device of the embodiment is analyzed and summarized by reasonably matching the resources of the key components of the air compressor system, and the components of the air inlet device are designed in a mode of 'total-minute-total'. The air is accessed by air intake duct 11, carry out the filtration of physical granule and sulphide and nitride through air cleaner 12, through intake air throttle 13 and intake air acoustics amortization subassembly 14 after, divide into two or more branches and enter into air compressor machine 16 air inlet, air system after 16 pressure boost of air compressor machine carries out the noise reduction processing back through pressure boost muffler 19, get into intercooler 17 through two unification pipelines (or unify the pipeline more) and carry out the heat exchange, in order to satisfy the condition that gets into humidifier 18, the air after the humidification satisfies the requirement of galvanic pile cathode to the air, can get into the galvanic pile and participate in the reaction, the electric energy is produced. The tail gas after reaction is discharged to the atmosphere after passing through the tail throttle valve 20, the air bypass valve 23, the tail silencer 21 and the air tail exhaust 22. Through the test and verification of actual performance, the method provides favorable support in the aspect of high-power fuel cell system development. Meanwhile, breakthrough achievements are achieved on the application mode of a novel fuel cell engine system and the control mode of a multi-way valve, and a solid foundation is laid for the innovation and the control stability of an air intake mode.
In order to improve the state of insufficient air intake of the air compressor, the air compressor is connected in parallel, so that the air intake flow can be increased, and the requirement of the system on the air flow can be met; in order to save space and material cost, the air inlet end and the air source end adopt a mode of gathering air inlet and gathering air exhaust to develop and utilize the functions of the air compressor. Through reasonable analysis and calculation of parameters of relevant components, external auxiliary components are matched, and the cost advantage is obvious compared with the air compressor with completely parallel air inlet. In the operation process of the whole air compressor, in order to enable the air compressor and accessories to operate under the satisfied condition, the air compressor auxiliary circuit circulating part is designed in the embodiment, the circulation and cooling of the whole system are carried out in a mode of multi-path water circulation parallel supply, the temperature of the stack entering allowable range can be met in order to improve the temperature of the high-temperature air after pressurization, the high-power air-water intercooler 17 is adopted in the embodiment, the cooling water flow of the air-water intercooler 17 is controlled, the temperature of the air entering the electric stack is improved, and the reaction temperature meets the electric stack requirement. In the actual operation process, the same air input of the rotating speed of the double parallel air compressors is increased by two times, so that the phenomenon of insufficient working of the fuel cell engine caused by insufficient capacity of the air compressor 16 is greatly reduced. In the deep testing process of the performance and the service life of the engine system, through analyzing test data, residual unreacted hydrogen is left in a hydrogen cavity after the electric pile is shut down, the part of gas can react with oxygen in an air cavity to discharge, the potential of the part of gas is high, and the service life and the durability of the membrane electrode are seriously reduced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a two parallelly connected air inlet unit of high-power hydrogen fuel cell engine air which characterized in that: the fuel cell system comprises an air compressor air inlet main circuit circulating component and a fuel cell stack component;
the air compressor machine main circuit circulation part that admits air includes air inlet assembly, air inlet throttle valve, air compressor unit, intercooler, humidifier, tail row throttle valve and exhaust subassembly, air compressor unit includes two or many air compressors, parallelly connected setting, and air compressor unit's air inlet is through admitting air throttle valve connection air inlet assembly, and intercooler, humidifier, fuel cell stack part, tail row throttle valve and exhaust subassembly are connected in proper order to the gas outlet, and the flowmeter is all installed to the air inlet department of every air compressor machine, and muffler after the pressure boost is all installed to gas outlet department.
2. The high power hydrogen fuel cell engine air double parallel air intake device according to claim 1, characterized in that: the air inlet assembly comprises an air inlet channel, an air filter and an air inlet acoustic silencing assembly, the air inlet of the air filter is communicated with the air inlet channel, the air outlet is sequentially communicated with an air inlet throttle valve and the air inlet acoustic silencing assembly to connect two or more branch pipelines, and each branch pipeline is communicated with the air inlet of one air compressor respectively.
3. The high power hydrogen fuel cell engine air double parallel air intake device according to claim 1, characterized in that: the exhaust assembly comprises an air tail row and a tail row silencer, the air tail row is communicated with a tail gas outlet of the fuel cell stack component through a humidifier, a tail row throttle valve is arranged between the air tail row and the humidifier, and the tail row silencer is arranged between the air tail row and the tail row throttle valve.
4. The high power hydrogen fuel cell engine air double parallel intake apparatus according to claim 3, characterized in that: still include the air by-pass valve, the access connection of air by-pass valve is on the connecting line of air compressor unit gas outlet and intercooler air inlet, and exit linkage is on the connecting line of tail row throttle valve and tail row muffler.
5. The high power hydrogen fuel cell engine air double parallel air intake device according to claim 1, characterized in that: still include air compressor machine controller, every air compressor machine is connected with an air compressor machine controller respectively.
6. The high power hydrogen fuel cell engine air double parallel air intake device according to claim 1, characterized in that: the air compressor auxiliary circuit circulating component comprises a centrifugal cooling water pump, a radiator and a water return water tank, a water inlet of the water return water tank is connected with the intercooler, a water outlet of the water return water tank is connected with the radiator through the centrifugal cooling water pump, a water outlet of the radiator is respectively connected with the air compressor controller and the intercooler, and cooling water in the air compressor controller flows back to the water return water tank after passing through the air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021235027.6U CN212209662U (en) | 2020-06-29 | 2020-06-29 | Air double-parallel air inlet device of high-power hydrogen fuel cell engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021235027.6U CN212209662U (en) | 2020-06-29 | 2020-06-29 | Air double-parallel air inlet device of high-power hydrogen fuel cell engine |
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| CN212209662U true CN212209662U (en) | 2020-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115799570A (en) * | 2023-01-09 | 2023-03-14 | 北京亿华通科技股份有限公司 | High-altitude self-adaptive fuel cell air inlet system |
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2020
- 2020-06-29 CN CN202021235027.6U patent/CN212209662U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115799570A (en) * | 2023-01-09 | 2023-03-14 | 北京亿华通科技股份有限公司 | High-altitude self-adaptive fuel cell air inlet system |
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