CN220417043U - Liquid hydrogen pressurizing supply system for fuel cell - Google Patents
Liquid hydrogen pressurizing supply system for fuel cell Download PDFInfo
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- CN220417043U CN220417043U CN202320363393.7U CN202320363393U CN220417043U CN 220417043 U CN220417043 U CN 220417043U CN 202320363393 U CN202320363393 U CN 202320363393U CN 220417043 U CN220417043 U CN 220417043U
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 227
- 239000001257 hydrogen Substances 0.000 title claims abstract description 225
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 225
- 239000007788 liquid Substances 0.000 title claims abstract description 141
- 239000000446 fuel Substances 0.000 title claims abstract description 50
- 230000008016 vaporization Effects 0.000 claims abstract description 57
- 238000003860 storage Methods 0.000 claims abstract description 37
- 238000009834 vaporization Methods 0.000 claims abstract description 35
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 15
- 239000008236 heating water Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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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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- Fuel Cell (AREA)
Abstract
The present utility model provides a liquid hydrogen pressurizing supply system for a fuel cell, comprising: the liquid hydrogen storage part is provided with a containing cavity, a liquid hydrogen outlet and a hydrogen return port, the containing cavity is used for storing liquid hydrogen and hydrogen, and the liquid hydrogen outlet and the hydrogen return port are respectively communicated with the containing cavity; the vaporization part is arranged at the downstream of the liquid hydrogen storage part and is provided with a vaporization inlet and a vaporization outlet which are oppositely arranged, the vaporization inlet is communicated with the liquid hydrogen outlet, and the vaporization part is used for vaporizing the liquid hydrogen so as to vaporize the liquid hydrogen into hydrogen; the buffer part is arranged at the downstream of the vaporization part, the vaporization outlet is communicated with the inlet of the buffer part, and the outlet of the buffer part is used for providing hydrogen for the fuel cell; the supercharging part is arranged in the buffer part and is provided with a hydrogen inlet and a high-pressure outlet, the supercharging part is used for supercharging hydrogen in the buffer part, and the high-pressure outlet is communicated with the hydrogen return port of the liquid hydrogen storage part so as to introduce the supercharged hydrogen into the liquid hydrogen storage part.
Description
Technical Field
The utility model relates to the technical field of liquid hydrogen supply, in particular to a liquid hydrogen pressurizing supply system for a fuel cell.
Background
In the fields of hydrogen production, hydrogen storage, hydrogen transportation, hydrogenation, hydrogen fuel cells, hydrogen automobiles and the like in the hydrogen energy industry chain, liquid hydrogen is an application state which can be used for long distance and high energy efficiency in the hydrogen energy storage and transportation. The application state of hydrogen energy is mainly divided into liquid hydrogen and hydrogen gas. The liquid hydrogen is low-temperature liquid frozen to minus 253 ℃ by hydrogen filtration, 1m 3 The liquid hydrogen can be heated and vaporized into hydrogen with 851 standard, so that the hydrogen has the characteristic of high storage and transportation ratio, and is safe, efficient, clean and pollution-free. In the prior art, liquid hydrogen is typically stored and vaporized by a liquid hydrogen pressurized supply system to provide hydrogen gas to a fuel cell.
In the prior art, chinese patent with the publication number of CN217422950U discloses a liquid hydrogen pressurizing and supplying system for an external pressurizing fuel cell with vapor recovery, which comprises a liquid hydrogen tank; the liquid hydrogen outlet of the liquid hydrogen tank is connected with a main path, and the main path comprises a liquid hydrogen pump pool, a liquid hydrogen gasifier and a hydrogen buffer part which are sequentially connected with each other; the outlet of the gas-hydrogen loop of the liquid hydrogen tank is connected with an auxiliary path, and the auxiliary path is sequentially connected with an auxiliary path hydrogen heater, an auxiliary path hydrogen buffer small bottle group, an auxiliary path small compressor and an auxiliary path high-pressure hydrogen storage bottle group; the hydrogen buffer is respectively connected with the outlet of the hydrogen supply system and the auxiliary high-pressure hydrogen storage bottle group. However, the above system has a large number of components and parts, and is scattered, and occupies a large area.
Disclosure of Invention
The utility model provides a liquid hydrogen pressurizing and supplying system for a fuel cell, which aims to solve the problem of large occupied area of the liquid hydrogen pressurizing and supplying system in the prior art.
The present utility model provides a liquid hydrogen pressurizing supply system for a fuel cell, comprising: the liquid hydrogen storage part is provided with a containing cavity, a liquid hydrogen outlet and a hydrogen return port, the containing cavity is used for storing liquid hydrogen and hydrogen, and the liquid hydrogen outlet and the hydrogen return port are respectively communicated with the containing cavity; the vaporization part is arranged at the downstream of the liquid hydrogen storage part and is provided with a vaporization inlet and a vaporization outlet which are oppositely arranged, the vaporization inlet is communicated with the liquid hydrogen outlet, and the vaporization part is used for vaporizing the liquid hydrogen so as to vaporize the liquid hydrogen into hydrogen; the buffer part is arranged at the downstream of the vaporization part, the vaporization outlet is communicated with the inlet of the buffer part, and the outlet of the buffer part is used for providing hydrogen for the fuel cell; the supercharging part is arranged in the buffer part and is provided with a hydrogen inlet and a high-pressure outlet, the supercharging part is used for supercharging hydrogen in the buffer part, and the high-pressure outlet is communicated with the hydrogen return port of the liquid hydrogen storage part so as to introduce the supercharged hydrogen into the liquid hydrogen storage part.
Further, the pressurizing unit is a pressurizing pump, and the liquid hydrogen pressurizing supply system for a fuel cell further includes: and the cooling part is arranged in the buffer part and is used for cooling the booster pump.
Further, the cooling portion includes a plurality of guide plates that follow the circulation direction interval setting of hydrogen, and two adjacent guide plates are located the both sides of buffer respectively, and a plurality of guide plates cooperate to form the water conservancy diversion passageway, and the booster pump setting is in the water conservancy diversion passageway, and hydrogen flows in the water conservancy diversion passageway and is used for cooling down to the booster pump.
Further, the diversion channel is provided with a first port and a second port which are oppositely arranged along the hydrogen flowing direction, and the flowing area of the first port and the flowing area of the second port are smaller than the cross section area of the buffer part.
Further, the liquid hydrogen pressurizing supply system for a fuel cell further includes: the first end of the hydrogen loop is connected with the high-pressure outlet of the pressurizing part, and the second end of the hydrogen loop is connected with the hydrogen loop of the liquid hydrogen storage part; the one-way check valve is arranged on the hydrogen loop and is used for limiting the flow direction of hydrogen in the hydrogen loop.
Further, the liquid hydrogen pressurizing supply system for a fuel cell further includes: the control unit is electrically connected with the pressurizing part; the pressure sensor is arranged on a pipeline with the liquid hydrogen outlet communicated with the vaporization inlet, the pressure sensor is used for detecting the air supply pressure of the buffer part, and the control unit is electrically connected with the pressure sensor to control the start and stop of the pressurizing part; and/or a temperature sensor is arranged on a pipeline with the liquid hydrogen outlet communicated with the vaporization inlet, and the temperature sensor is used for detecting the air supply temperature of the buffer part; the control unit is electrically connected with the temperature sensor to control the start and stop of the pressurizing part.
Further, the liquid hydrogen pressurizing supply system for a fuel cell further includes: the safety valve is arranged at the high-pressure outlet of the pressurizing part and is used for overload protection of the pressurizing part.
Further, the liquid hydrogen pressurizing supply system for a fuel cell further includes: and the stop valve is arranged on a pipeline with the liquid hydrogen outlet communicated with the vaporization inlet.
Further, the vaporizing section includes: the inlet of the first heat exchange pipeline is communicated with the liquid hydrogen outlet of the liquid hydrogen storage part, and the outlet of the first heat exchange pipeline is communicated with the inlet of the buffer part; the second heat exchange pipeline is arranged independent of the first heat exchange pipeline, a heating medium is arranged in the second heat exchange pipeline, and the second heat exchange pipeline is used for heating liquid hydrogen in the first heat exchange pipeline so as to vaporize the liquid hydrogen.
Further, the vaporizing section further includes: and one end of the second heat exchange pipeline is communicated with an inlet of the heating water tank, and the other end of the second heat exchange pipeline is communicated with an outlet of the heating water tank.
By applying the technical scheme of the utility model, the number of the whole parts of the fuel cell pressurizing and supplying system can be reduced, and the pressurizing part is arranged in the buffer part, so that the occupied area of the whole system can be further reduced. Specifically, when the liquid hydrogen pressurizing and supplying system for the fuel cell works, liquid hydrogen in the liquid hydrogen storage part enters the vaporizing part, the vaporizing part vaporizes the liquid hydrogen to enable the liquid hydrogen to be vaporized into hydrogen, the hydrogen enters the buffer part, and part of the hydrogen entering the buffer part is introduced into the fuel cell and provides fuel for the fuel cell; the other part of the hydrogen entering the buffer part is pressurized under the pressurizing action of the pressurizing part and flows back to the liquid hydrogen storage part to provide pressure for the liquid hydrogen storage part, so that the liquid hydrogen smoothly flows into the vaporizing part. The liquid hydrogen booster supply system in the prior art has the advantages that the parts are more, the occupied area is larger, compared with the liquid hydrogen booster supply system in the prior art, the parts are fewer, the occupied area is smaller, the occupied area of the whole system can be further reduced by arranging the booster part in the buffer part, and the compactness of the structure is guaranteed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 is a schematic diagram showing the structure of a liquid hydrogen pressurizing supply system for a fuel cell according to the present utility model.
Wherein the above figures include the following reference numerals:
10. a liquid hydrogen storage unit;
20. a vaporization unit;
30. a buffer section; 301. a diversion channel;
311. a first deflector; 312. a second deflector;
40. a supercharging part;
50. a hydrogen loop;
501. a one-way check valve;
61. a pressure sensor; 62. a temperature sensor;
70. a safety valve;
80. and a stop valve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, an embodiment of the present utility model provides a liquid hydrogen pressurizing supply system for a fuel cell, which includes a liquid hydrogen storage portion 10, a vaporizing portion 20, a buffer portion 30, and a pressurizing portion 40. The liquid hydrogen storage part 10 has a containing cavity for storing liquid hydrogen and hydrogen, a liquid hydrogen outlet and a hydrogen return port, which are respectively communicated with the containing cavity. The vaporizing section 20 is disposed downstream of the liquid hydrogen storage section 10, the vaporizing section 20 having a vaporization inlet and a vaporization outlet disposed opposite to each other, the vaporization inlet being in communication with the liquid hydrogen outlet, the vaporizing section 20 being configured to vaporize liquid hydrogen to vaporize the liquid hydrogen into hydrogen gas. The buffer portion 30 is provided downstream of the vaporizing portion 20, and a vaporization outlet communicates with an inlet of the buffer portion 30, and an outlet of the buffer portion 30 is used to supply hydrogen gas to the fuel cell. The pressurizing part 40 is disposed in the buffer part 30, the pressurizing part 40 has a hydrogen inlet and a high pressure outlet, the pressurizing part 40 is used for pressurizing the hydrogen in the buffer part 30, and the high pressure outlet is communicated with the hydrogen return port of the liquid hydrogen storage part 10 to introduce the pressurized hydrogen into the liquid hydrogen storage part 10. The arrow direction in the figure is the flow direction of the liquid hydrogen and the hydrogen gas.
By applying the technical scheme of the utility model, the number of the whole parts of the fuel cell pressurizing and supplying system can be reduced, and the pressurizing part is arranged in the buffer part, so that the occupied area of the whole system can be further reduced. Specifically, when the liquid hydrogen pressurizing and supplying system for a fuel cell of the present application is operated, liquid hydrogen in the liquid hydrogen storage portion 10 enters into the vaporizing portion, the vaporizing portion 20 vaporizes the liquid hydrogen to vaporize the liquid hydrogen into hydrogen gas, the hydrogen gas enters into the buffer portion 30, and a part of the hydrogen gas entering into the buffer portion 30 is introduced into the fuel cell and provides fuel to the fuel cell; the other part of the hydrogen gas introduced into the buffer portion 30 is pressurized by the pressurizing portion 40 and flows back to the liquid hydrogen storage portion 10 to supply pressure to the liquid hydrogen storage portion 10, so that the liquid hydrogen smoothly flows into the vaporizing portion 20. The liquid hydrogen pressurizing supply system in the prior art has the advantages that the liquid hydrogen pressurizing supply system is more in components and larger in occupied area, compared with the liquid hydrogen pressurizing supply system in the prior art, the liquid hydrogen pressurizing supply system is fewer in components and smaller in occupied area, the pressurizing part 40 is arranged in the buffer part 30, the occupied area of the whole system can be further reduced, and the compactness of the structure is guaranteed. The buffer part 30 has a certain pressure, the pressure inside the buffer part 30 is basically consistent with the working pressure inside the liquid hydrogen storage part 10, and the pressurizing effect can be realized by the pressurizing part 40 only by small power under the condition that the buffer part 30 has a certain pressure, so that the cost is saved. In addition, through long-time operation, the temperature of booster portion 40 can rise to some extent, and this application sets up booster portion 40 in the inside of buffer portion 30, and the inside temperature of buffer portion 30 is lower relatively, and the inside air of buffer portion 30 can cool down booster portion 40, guarantees booster portion 40's life.
In this embodiment, the pressurizing unit 40 is a booster pump, and the liquid hydrogen pressurizing supply system for a fuel cell further includes a cooling unit, where the cooling unit is disposed in the buffer unit 30, and the cooling unit is used for cooling the booster pump. The pressure boost portion can rise at the in-process of operation, and the inside spare part of damage influences its life, and the setting of cooling portion can further cool down the booster pump, guarantees the life of booster pump.
Specifically, the cooling portion includes a plurality of guide plates that follow the circulation direction interval setting of hydrogen, and adjacent two guide plates are located the both sides of buffer 30 respectively, and a plurality of guide plates cooperate to form guide channel 301, and the booster pump setting is in guide channel 301, and hydrogen flows in guide channel 301 and is used for cooling down to the booster pump. The number of the guide plates can be multiple according to actual working conditions, in the application, two guide plates are provided, namely a first guide plate 311 and a second guide plate 312; in this application, buffer portion 30 is the buffer tank, and the axis direction of buffer tank is the horizontal direction, and the import and the export of buffer tank set up respectively at the two tip of buffer tank, and first guide plate 311 and second guide plate 312 are along the axis direction interval distribution of buffer tank, and first guide plate 311 and second guide plate 312 are parallel to each other and all extend along the radial of buffer tank. The guide plate is simple in structure and good in guide effect.
Further, the diversion channel 301 has a first port and a second port disposed opposite to each other along the hydrogen gas flowing direction, and the flowing area of the first port and the flowing area of the second port are smaller than the cross-sectional area of the buffer portion 30. And the top of the first baffle 311 is connected with the top of the buffer tank, a space is formed between the bottom of the first baffle 311 and the buffer tank, the bottom of the second baffle 312 is connected with the bottom of the buffer tank, and a space is formed between the top of the second baffle 312 and the top of the buffer tank, so as to form a second port. By the arrangement, the hydrogen can stay in the diversion channel 301 for a sufficient time, and the cooling effect of the diversion channel 301 is guaranteed.
Further, the liquid hydrogen pressurizing supply system for a fuel cell further includes a hydrogen circuit 50 and a one-way check valve 501. The first end of the hydrogen circuit 50 is connected to the high-pressure outlet of the booster 40, and the second end of the hydrogen circuit 50 is connected to the hydrogen return port of the liquid hydrogen storage 10. A one-way check valve 501 is provided on the hydrogen circuit 50, the one-way check valve 501 serving to restrict the flow of hydrogen within the hydrogen circuit 50. The one-way check valve 501 is used for reverse impact protection of the air flow of the booster pump, and ensures the smoothness of the operation of the booster pump.
Further, the liquid hydrogen pressurizing supply system for a fuel cell further includes a control unit, a pressure sensor 61, and a temperature sensor 62. Wherein the control unit is electrically connected to the pressurizing part 40. The pressure sensor 61 is disposed on a pipeline where the liquid hydrogen outlet and the vaporization inlet are communicated, the pressure sensor 61 is used for detecting the air supply pressure of the buffer portion 30, and the control unit is electrically connected with the pressure sensor 61 to control the start and stop of the pressurizing portion 40. When the air supply pressure detected by the pressure sensor 61 exceeds a preset value, the control unit controls the frequency of the booster pump or stops the booster pump, so that the working efficiency of the booster pump is ensured. A temperature sensor 62 is provided on a line in which the liquid hydrogen outlet communicates with the vaporization inlet, the temperature sensor 62 being configured to detect the supply air temperature of the buffer portion 30; the control unit is electrically connected to the temperature sensor 62 to control the start and stop of the booster part 40. When the temperature sensor 62 detects that the temperature in the buffer portion 30 is too high, the control unit controls the frequency of the booster pump or stops the booster pump to protect the booster pump from operation. By means of the arrangement, the booster pump can be guaranteed to operate in a high-efficiency working range, the working time of the booster pump is shortened, and the high-efficiency long-service-life operation of the booster pump is realized.
In this embodiment, the liquid hydrogen pressurizing supply system for a fuel cell further includes a relief valve 70, the relief valve 70 being provided at the high-pressure outlet of the pressurizing portion 40, the relief valve 70 being for overload protection of the pressurizing portion 40. When the pressure at the high-pressure outlet of the booster part 40 exceeds the standard, the safety valve 70 automatically takes off to release pressure to limit the working load of the booster pump, and further the service life of the booster pump is ensured.
In this embodiment, the liquid hydrogen pressurizing supply system for a fuel cell further includes a shutoff valve 80, and the shutoff valve 80 is provided on a line in which the liquid hydrogen outlet communicates with the vaporization inlet. When the worker needs to replace or repair the liquid hydrogen storage part 10, the stop valve 80 is closed, and then the buffer part 30 is removed from the system, so that the leakage of liquid hydrogen in the liquid hydrogen storage part 10 is avoided, and the smoothness of the repair or replacement process is ensured.
Specifically, the vaporizing section 20 includes a first heat exchange pipeline and a second heat exchange pipeline, an inlet of the first heat exchange pipeline is communicated with a liquid hydrogen outlet of the liquid hydrogen storage section 10, and an outlet of the first heat exchange pipeline is communicated with an inlet of the buffer section 30; the second heat exchange pipeline and the first heat exchange pipeline are mutually independent, a heating medium is arranged in the second heat exchange pipeline, and the second heat exchange pipeline is used for heating liquid hydrogen in the first heat exchange pipeline so as to vaporize the liquid hydrogen. The first heat exchange pipeline and the second heat exchange pipeline are arranged, the structure is simple, and the vaporization effect is excellent.
Further, the vaporizing portion 20 further includes a heating water tank, one end of the second heat exchange pipeline is communicated with an inlet of the heating water tank, and the other end of the second heat exchange pipeline is communicated with an outlet of the heating water tank. The heating water tank is arranged, so that the stability of the temperature of the heat medium in the second heat exchange pipeline can be ensured, and the temperature of the heat medium in the second heat exchange pipeline can be conveniently adjusted.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A liquid hydrogen pressurizing supply system for a fuel cell, comprising:
a liquid hydrogen storage part (10) provided with a containing cavity, a liquid hydrogen outlet and a hydrogen return port, wherein the containing cavity is used for storing liquid hydrogen and hydrogen, and the liquid hydrogen outlet and the hydrogen return port are respectively communicated with the containing cavity;
a vaporization part (20) arranged at the downstream of the liquid hydrogen storage part (10), wherein the vaporization part (20) is provided with a vaporization inlet and a vaporization outlet which are arranged oppositely, the vaporization inlet is communicated with the liquid hydrogen outlet, and the vaporization part (20) is used for vaporizing liquid hydrogen so as to vaporize the liquid hydrogen into hydrogen;
a buffer portion (30) disposed downstream of the vaporizing portion (20), the vaporizing outlet being in communication with an inlet of the buffer portion (30), an outlet of the buffer portion (30) being for supplying hydrogen to a fuel cell;
the pressurizing part (40) is arranged in the buffer part (30), the pressurizing part (40) is provided with a hydrogen inlet and a high-pressure outlet, the pressurizing part (40) is used for pressurizing hydrogen in the buffer part (30), and the high-pressure outlet is communicated with a hydrogen return port of the liquid hydrogen storage part (10) so as to introduce the pressurized hydrogen into the liquid hydrogen storage part (10).
2. The liquid hydrogen pressure boosting supply system for a fuel cell as defined in claim 1, wherein said pressure boosting portion (40) is a pressure boosting pump, said liquid hydrogen pressure boosting supply system for a fuel cell further comprising:
the cooling part is arranged in the buffer part (30) and is used for cooling the booster pump.
3. The liquid hydrogen pressurizing supply system for a fuel cell according to claim 2, wherein,
the cooling part comprises a plurality of guide plates arranged along the flowing direction of the hydrogen at intervals, two adjacent guide plates are respectively positioned at two sides of the buffer part (30), the guide plates are matched to form a guide channel (301), the booster pump is arranged in the guide channel (301), and the hydrogen flows in the guide channel (301) to cool the booster pump.
4. The liquid hydrogen pressurizing supply system for a fuel cell according to claim 3, wherein the diversion passage (301) has a first port and a second port which are provided opposite to each other in a hydrogen gas flowing direction, and a flow area of the first port and a flow area of the second port are smaller than a cross-sectional area of the buffer portion (30).
5. The liquid hydrogen pressure-increasing supply system for a fuel cell according to claim 1, characterized in that the liquid hydrogen pressure-increasing supply system for a fuel cell further comprises:
a hydrogen circuit (50), wherein a first end of the hydrogen circuit (50) is connected with a high-pressure outlet of the pressurizing part (40), and a second end of the hydrogen circuit (50) is connected with a hydrogen return port of the liquid hydrogen storage part (10);
a one-way check valve (501) is disposed on the hydrogen circuit (50), the one-way check valve (501) being used to restrict the flow of hydrogen within the hydrogen circuit (50).
6. The liquid hydrogen pressure-increasing supply system for a fuel cell according to claim 1, characterized in that the liquid hydrogen pressure-increasing supply system for a fuel cell further comprises:
a control unit electrically connected to the pressurizing unit (40);
the pressure sensor (61) is arranged on a pipeline with the liquid hydrogen outlet communicated with the vaporization inlet, the pressure sensor (61) is used for detecting the air supply pressure of the buffer part (30), and the control unit is electrically connected with the pressure sensor (61) so as to control the start and stop of the pressurizing part (40); and/or the number of the groups of groups,
a temperature sensor (62) arranged on a pipeline in which the liquid hydrogen outlet is communicated with the vaporization inlet, wherein the temperature sensor (62) is used for detecting the gas supply temperature of the buffer part (30); the control unit is electrically connected with the temperature sensor (62) to control the start and stop of the pressurizing part (40).
7. The liquid hydrogen pressure-increasing supply system for a fuel cell according to claim 1, characterized in that the liquid hydrogen pressure-increasing supply system for a fuel cell further comprises:
and a safety valve (70) arranged at a high-pressure outlet of the pressurizing part (40), wherein the safety valve (70) is used for overload protection of the pressurizing part (40).
8. The liquid hydrogen pressure-increasing supply system for a fuel cell according to claim 1, characterized in that the liquid hydrogen pressure-increasing supply system for a fuel cell further comprises:
and a stop valve (80) arranged on a pipeline for communicating the liquid hydrogen outlet with the vaporization inlet.
9. The liquid hydrogen pressure-increasing supply system for a fuel cell according to claim 1, wherein the vaporizing portion (20) includes:
the inlet of the first heat exchange pipeline is communicated with the liquid hydrogen outlet of the liquid hydrogen storage part (10), and the outlet of the first heat exchange pipeline is communicated with the inlet of the buffer part (30);
the second heat exchange pipeline is mutually independent of the first heat exchange pipeline, a heating medium is arranged in the second heat exchange pipeline, and the second heat exchange pipeline is used for heating liquid hydrogen in the first heat exchange pipeline so as to vaporize the liquid hydrogen.
10. The liquid hydrogen pressure-increasing supply system for a fuel cell according to claim 9, wherein the vaporizing portion (20) further includes:
the heating water tank, the one end of second heat transfer pipeline with the import intercommunication of heating water tank, the other end of second heat transfer pipeline with the export intercommunication of heating water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320363393.7U CN220417043U (en) | 2023-02-28 | 2023-02-28 | Liquid hydrogen pressurizing supply system for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320363393.7U CN220417043U (en) | 2023-02-28 | 2023-02-28 | Liquid hydrogen pressurizing supply system for fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220417043U true CN220417043U (en) | 2024-01-30 |
Family
ID=89654170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320363393.7U Active CN220417043U (en) | 2023-02-28 | 2023-02-28 | Liquid hydrogen pressurizing supply system for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220417043U (en) |
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2023
- 2023-02-28 CN CN202320363393.7U patent/CN220417043U/en active Active
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