CN213936271U - Fuel cell air inlet energy comprehensive utilization system - Google Patents
Fuel cell air inlet energy comprehensive utilization system Download PDFInfo
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- CN213936271U CN213936271U CN202023335409.9U CN202023335409U CN213936271U CN 213936271 U CN213936271 U CN 213936271U CN 202023335409 U CN202023335409 U CN 202023335409U CN 213936271 U CN213936271 U CN 213936271U
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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 provides a fuel cell energy of admitting air comprehensive utilization system relates to fuel cell technical field. It comprises a high-pressure hydrogen storage container, a pressure regulating device, a fuel cell and a water pump; the pressure regulating device comprises a turbine pressure reducing mechanism and a turbine pressurizing mechanism, the turbine pressure reducing mechanism is provided with a first turbine, a first air inlet and a first air outlet, and the turbine pressurizing mechanism is provided with a second turbine, a second air inlet and a second air outlet; the first turbine is in transmission connection with the second turbine, the first gas inlet is communicated with the high-pressure hydrogen storage container, the first gas outlet is communicated with the fuel cell, the second gas inlet is communicated with the outside, and the second gas outlet is communicated with the fuel cell; the water pump is in transmission connection with the first turbine. The utility model discloses utilize high-pressure hydrogen's atmospheric pressure to drive first turbine and rotate, through first turbine drive second turbine and water pump, need not to carry out pressure boost and drive water pump through the motor, avoided the waste of system compression energy, practiced thrift the electric energy moreover.
Description
Technical Field
The utility model belongs to the technical field of the fuel cell technique and specifically relates to a fuel cell energy comprehensive utilization system that admits air.
Background
The existing fuel cell needs to be respectively filled with hydrogen and air during working, the hydrogen is decompressed by a pressure reducing valve through a high-pressure hydrogen tank and then enters the fuel cell for chemical reaction, the air is pressurized by an air compressor or a booster pump and then is filled into the fuel cell, and the booster pump is driven to act by a motor and other structures.
The hydrogen source in the high-pressure hydrogen tank can provide the hydrogen with the absolute pressure up to 30MPa, the pressure of the hydrogen is directly eliminated through the pressure reducing valve, the partial energy is undoubtedly wasted, and the fuel cell is needed to provide power supply for the motor of the air compressor or the booster pump, so that the partial energy is lost, and the heat efficiency and the energy utilization rate of the fuel cell system are greatly restricted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fuel cell energy comprehensive utilization system that admits air to solve current fuel cell and obtain the problem of effective utilization at the extravagant energy of during operation, thermal efficiency.
In order to solve the technical problem, the utility model provides an at first fuel cell energy of admitting air comprehensive utilization system, concrete technical scheme as follows:
a fuel cell intake energy comprehensive utilization system comprises a high-pressure hydrogen storage container, a pressure regulating device, a fuel cell and a water pump; the pressure regulating device comprises a turbine pressure reducing mechanism and a turbine pressurizing mechanism, the turbine pressure reducing mechanism is provided with a first turbine, a first air inlet and a first air outlet, and the turbine pressurizing mechanism is provided with a second turbine, a second air inlet and a second air outlet; the first turbine is in transmission connection with the second turbine, the first gas inlet is communicated with the high-pressure hydrogen storage container, the first gas outlet is communicated with the fuel cell, the second gas inlet is communicated with the outside, and the second gas outlet is communicated with the fuel cell; the water pump is in transmission connection with the first turbine and is provided with a water inlet and a water outlet, the water inlet is communicated with a cooling liquid outlet of the fuel cell, and the water outlet is communicated with a cooling liquid inlet of the fuel cell.
Furthermore, the first air outlet is connected with the fuel cell through a first air outlet pipeline, and a first heat exchange device is installed on the first air outlet pipeline.
Further, the first heat exchange device is connected with a first temperature adjusting device.
Furthermore, the second air outlet is connected with the fuel cell through a second air outlet pipeline, and a second heat exchange device is installed on the second air outlet pipeline.
Further, the second heat exchange device is connected with a second temperature adjusting device.
Furthermore, a low-pressure air storage container and a control valve are installed on the second air outlet pipeline, the low-pressure air storage container is used for storing the pressurized air, and the control valve is used for opening and closing the low-pressure air storage container to introduce the pressurized air into the fuel cell.
Further, the low-pressure gas storage container is connected with a third heat exchange device, and the third heat exchange device is connected with a cooling system of the fuel cell and is used for exchanging heat with the cooling system.
Furthermore, the water outlet is communicated with the cooling liquid inlet through a water inlet pipeline, and a fourth heat exchange device is arranged on the water inlet pipeline.
Further, the device also comprises a generator which is in transmission connection with the first turbine.
Further, the device also comprises a standby motor in transmission connection with the second turbine.
According to the utility model provides a fuel cell intake energy comprehensive utilization system utilizes the atmospheric pressure of high-pressure hydrogen to drive first turbine and rotates, through first turbine drive second turbine and water pump, realizes the pressure boost of air and the circulation of coolant liquid, need not to carry out pressure boost and drive water pump through the motor, has avoided the waste of system's compression energy, has practiced thrift the electric energy moreover.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fuel cell intake energy comprehensive utilization system according to an embodiment of the present invention.
Icon:
1-high pressure hydrogen storage vessel; 2-a pressure regulating device; 3-a fuel cell; 4-a water pump; 5-a turbine pressure relief mechanism; 6-a turbocharger mechanism; 7-a first outlet line; 8-a second outlet pipeline; 9-a first heat exchange means; 10-a first temperature regulating device; 11-a second heat exchange means; 12-a second temperature regulating device; 13-low pressure gas storage container; 14-a control valve; 15-a water inlet pipeline; 16-a fourth heat exchange means; 17-a generator; 18-spare motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Based on the description in the background art, it can be known that, while the existing fuel cell 3 system wastes the compressed energy of the high-pressure hydrogen, at least two motors are required to drive the air booster pump and the water pump 4 to operate, which wastes energy and requires additional electric energy, in view of this, the present embodiment provides a comprehensive utilization system for the intake energy of the fuel cell 3, and aims to drive the air booster pump and the water pump 4 by fully utilizing the compressed energy of the high-pressure hydrogen.
Specifically, referring to fig. 1, the system for comprehensively utilizing intake energy of a fuel cell 3 of the present embodiment includes a high-pressure hydrogen storage container 1, a pressure regulating device 2, a fuel cell 3, and a water pump 4; the high-pressure hydrogen storage container 1 of the present embodiment is an existing high-pressure gas cylinder, and it should be noted that "high pressure" and "low pressure" in the present embodiment can be understood as a design pressure (P) of the pressure container, the design pressure is divided into four pressure levels of low pressure, medium pressure, high pressure, and ultrahigh pressure, the low pressure is 0.1MPa or more and P < 1.6MPa, the medium pressure is 1.6MPa or more and P < 10MPa, the high pressure is 10MPa or more and P < 100MPa, the ultrahigh pressure is P > 100MPa, and the hydrogen pressure in the high-pressure hydrogen storage container 1 of the present embodiment can be as high as 30 MPa.
The pressure regulating device 2 of the present embodiment includes a turbine pressure reducing mechanism 5 and a turbine pressure reducing mechanism 6, the turbine pressure reducing mechanism 6 and the turbine pressure reducing mechanism 5 respectively have separate inner cavities, the structure of the turbine pressure reducing mechanism 5 is similar to that of the turbine pressure reducing mechanism 6, but the operation principle is opposite, a first turbine (not shown in the figure) of the turbine pressure reducing mechanism 5 is driven to rotate by high-pressure hydrogen, specifically, a first turbine is installed inside the inner cavity of the turbine pressure reducing mechanism 5 of the present embodiment, and a first air inlet (not shown in the figure) and a first air outlet (not shown in the figure) are arranged on the sidewall of the inner cavity of the turbine pressure reducing mechanism 5, the first air inlet of the present embodiment is communicated with the high-pressure hydrogen storage container 1 through structures such as a pipeline, the first air outlet of the present embodiment is communicated with the fuel cell 3 through a first air outlet pipeline 7, and compressed hydrogen enters the turbine pressure reducing mechanism 5 through the first air inlet, the first turbine of the turbine pressure reducing mechanism 5 is driven to rotate, hydrogen is reduced to 0.2MPa from about 30MPa originally, and then the hydrogen enters the fuel cell 3 from the first air outlet and the first air outlet pipeline 7. Since the specific structural form of the turbo charging mechanism 6 is an existing turbo charging structure, the present embodiment does not describe the specific structural forms of the turbo decompression mechanism 5 and the turbo charging mechanism 6 in the drawings and in detail.
In order to realize the compression of air by using the compression energy of high-pressure hydrogen, the first turbine and the second turbine are in transmission connection through a turbine link (not shown in the figure), the second air inlet of the embodiment is communicated with the outside, the second air outlet is communicated with the fuel cell 3 through a second air outlet pipeline 8, air enters the inner cavity of the turbocharger mechanism 6 from the second air inlet, is compressed to about 1MPa by the second turbine, and then enters the fuel cell 3 through the second air outlet.
And because the compression energy of the high-pressure hydrogen of this embodiment is in addition enough to drive the turbo-charging mechanism 6, there is a large amount of energy surplus, this embodiment still connects the water pump 4 with the transmission of first turbine, further utilizes compression energy, this water pump 4 has water inlet and delivery port, the water inlet is linked together with the coolant outlet of fuel cell 3, the delivery port is linked together with the coolant inlet of fuel cell 3, drive the motion subassembly action in the water pump 4 through first turbine, and then realize the circulation of coolant liquid.
Above-mentioned structure utilizes high-pressure hydrogen's atmospheric pressure to drive first turbine and rotates, through first turbine drive second turbine and water pump 4, realizes the pressure boost of air and the circulation of coolant liquid, need not to carry out the pressure boost through the motor and drive water pump 4, has avoided the waste of system compression energy, has practiced thrift the electric energy moreover.
In addition, because compressed hydrogen and compressed air can both produce great heat, in order to realize the heat dissipation, this embodiment installs first heat exchange device 9 on first gas outlet pipeline 7 to be connected with first temperature regulation apparatus 10 at first heat exchange device 9, dispel the heat through first heat exchange device 9, then guarantee that first heat exchange device 9 is in operating temperature at the moment through first temperature regulation apparatus 10, avoid its high temperature to influence the heat dissipation.
Similarly, the second outlet pipe 8 of the present embodiment is provided with the second heat exchanging device 11, and the second temperature adjusting device 12 is connected to the second heat exchanging device 11, so that heat dissipation is performed through the second heat exchanging device 11, and then the first heat exchanging device 9 is constantly maintained at the operating temperature through the second temperature adjusting device 12.
Preferably, the first heat exchanging device 9 and the second heat exchanging device 11 of the present embodiment may be connected to a cooling fluid circulating mechanism (not shown in the figure) in the fuel cell 3, that is, the cooling fluid may pass through the first heat exchanging device 9 and the second heat exchanging device 11, and the first heat exchanging device 9 and the second heat exchanging device 11 may dissipate heat of the cooling fluid. The first heat exchanging device 9 and the second heat exchanging device 11 of the present embodiment may be configured by heat dissipating fins, the first temperature adjusting device 10 of the present embodiment may be an air conditioner, and the second temperature adjusting device 12 of the present embodiment may be a warm air type heat sink.
In addition, in this embodiment, a low pressure gas storage container 13 and a control valve 14 are further installed on the second gas outlet pipeline 8, the low pressure gas storage container 13 is used for storing the pressurized air, and the control valve 14 is used for opening and closing the low pressure gas storage container 13 to introduce the pressurized air into the fuel cell 3, so that the high pressure hydrogen can compress the air with volume flow of 3-5 times to 0.5-5MPa, which is much larger than the system air pressure requirement of the fuel cell 3, so the low pressure gas storage container 13 is provided, and an electromagnetic valve is provided on the second gas outlet pipeline 8 connecting the low pressure gas storage container 13 and the fuel cell 3 to control the gas inlet flow and pressure.
In order to lower the temperature of the air output from the low pressure air container 13, the present embodiment is further connected to the low pressure air container 13 with a third heat exchanging device (not shown) connected to the cooling system of the fuel cell 3 and adapted to exchange heat with the cooling system.
In addition, in order to cool the coolant, the water outlet and the coolant inlet of the present embodiment are communicated with each other through a water inlet pipeline 15, a fourth heat exchanging device 16 is disposed on the water inlet pipeline 15, and the third heat exchanging device and the fourth heat exchanging device 16 may also include heat dissipating fins and other structures.
Based on the above structure, the inventor finds that, because the high-pressure hydrogen can compress the air with 3 to 5 times volume flow rate to 0.5 to 5MPa, and even if the water pump 4 is operated again, part of the compressed hydrogen is still not fully utilized, the system for comprehensively utilizing the intake air energy of the fuel cell 3 of the embodiment further comprises the generator 17, the generator 17 of the embodiment is in transmission connection with the first turbine, the generator 17 is driven by the first turbine to generate electricity, and the electricity generated by the electricity generation can drive other equipment or devices.
In addition, the intake energy comprehensive utilization system of the fuel cell 3 of the embodiment further comprises a standby motor 18 in transmission connection with the second turbine, the motor is connected in series with the turbocharger mechanism 6 and serves as an auxiliary standby power source for dealing with special peak conditions, such as ultra-high temperature starting, low hydrogen demand and high water path heat dissipation demand.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A fuel cell intake energy comprehensive utilization system is characterized by comprising a high-pressure hydrogen storage container, a pressure regulating device, a fuel cell and a water pump;
the pressure regulating device comprises a turbine pressure reducing mechanism and a turbine pressurizing mechanism, the turbine pressure reducing mechanism is provided with a first turbine, a first air inlet and a first air outlet, and the turbine pressurizing mechanism is provided with a second turbine, a second air inlet and a second air outlet; the first turbine is in transmission connection with the second turbine, the first gas inlet is communicated with the high-pressure hydrogen storage container, the first gas outlet is communicated with the fuel cell, the second gas inlet is communicated with the outside, and the second gas outlet is communicated with the fuel cell;
the water pump is in transmission connection with the first turbine and is provided with a water inlet and a water outlet, the water inlet is communicated with a cooling liquid outlet of the fuel cell, and the water outlet is communicated with a cooling liquid inlet of the fuel cell.
2. The fuel cell intake energy comprehensive utilization system according to claim 1, wherein the first air outlet is connected to the fuel cell through a first air outlet pipeline, and a first heat exchanging device is installed on the first air outlet pipeline.
3. The fuel cell intake air energy integrated utilization system according to claim 2, wherein a first temperature regulation device is connected to the first heat exchange device.
4. The fuel cell intake energy comprehensive utilization system according to claim 1, wherein the second air outlet is connected with the fuel cell through a second air outlet pipeline, and a second heat exchanging device is installed on the second air outlet pipeline.
5. The fuel cell intake air energy integrated utilization system according to claim 4, wherein a second temperature regulation device is connected to the second heat exchange device.
6. The system as claimed in claim 4, wherein the second air outlet pipeline is provided with a low pressure air container for storing the pressurized air and a control valve for opening and closing the low pressure air container to supply the pressurized air to the fuel cell.
7. The system as claimed in claim 6, wherein a third heat exchanging means is connected to the low pressure gas container and is adapted to exchange heat with the cooling system of the fuel cell.
8. The fuel cell intake air energy comprehensive utilization system according to any one of claims 1 to 7, wherein the water outlet is communicated with the coolant inlet through a water inlet pipeline, and a fourth heat exchange device is arranged on the water inlet pipeline.
9. The fuel cell intake air energy integrated utilization system according to any one of claims 1 to 7, further comprising a generator drivingly connected to the first turbine.
10. The fuel cell intake air energy integrated utilization system according to any one of claims 1 to 7, further comprising a backup motor drivingly connected to the second turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023335409.9U CN213936271U (en) | 2020-12-30 | 2020-12-30 | Fuel cell air inlet energy comprehensive utilization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023335409.9U CN213936271U (en) | 2020-12-30 | 2020-12-30 | Fuel cell air inlet energy comprehensive utilization system |
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| CN213936271U true CN213936271U (en) | 2021-08-10 |
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| CN202023335409.9U Active CN213936271U (en) | 2020-12-30 | 2020-12-30 | Fuel cell air inlet energy comprehensive utilization system |
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