CN113148101A - Small unmanned airship using hydrogen-helium hybrid energy - Google Patents
Small unmanned airship using hydrogen-helium hybrid energy Download PDFInfo
- Publication number
- CN113148101A CN113148101A CN202110238018.5A CN202110238018A CN113148101A CN 113148101 A CN113148101 A CN 113148101A CN 202110238018 A CN202110238018 A CN 202110238018A CN 113148101 A CN113148101 A CN 113148101A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- helium
- mixed gas
- fuel cell
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64B—LIGHTER-THAN AIR AIRCRAFT
- B64B1/00—Lighter-than-air aircraft
- B64B1/58—Arrangements or construction of gas-bags; Filling arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64B—LIGHTER-THAN AIR AIRCRAFT
- B64B1/00—Lighter-than-air aircraft
- B64B1/06—Rigid airships; Semi-rigid airships
- B64B1/24—Arrangement of propulsion plant
Abstract
The invention provides a small unmanned airship using hydrogen-helium hybrid energy, which comprises an air bag and a power device; the air bag is filled with hydrogen/helium mixed gas mixed according to a certain proportion as buoyancy lifting gas of the airship; the power plant comprises a hydrogen fuel cell stack and a motor which are connected with each other; the air bag is connected with the hydrogen fuel cell set through a hydrogen-helium mixed gas loop and used for providing reaction hydrogen/helium mixed gas for the hydrogen fuel cell power system; the external air is connected with the hydrogen fuel cell stack through an air loop and is used for providing reaction oxygen for the hydrogen fuel cell power system. The invention uses the hydrogen/helium mixed gas to replace pure hydrogen as the fuel of the cell, can effectively avoid the potential safety hazard of the fuel cell in the operation process, and prolongs the service life of the fuel cell stack. Meanwhile, because hydrogen is directly stored in the air bag, the dependence on a storage medium steel cylinder is reduced, so that the self weight of the airship is reduced, the load capacity of the airship is improved, and the aim of miniaturization is fulfilled.
Description
Technical Field
The invention relates to the field of aerostat design, in particular to a small unmanned airship using hydrogen-helium hybrid energy.
Background
An airship is an aircraft with propulsion and flight control, and generally comprises a hull filled with helium, a pod located below the hull, a tail wing for stability control, and a powered propulsion system. In recent years, with the enhancement of environmental awareness and the development of new energy technologies, research on fuel cells as a driving force of airships has attracted much attention.
The existing hydrogen energy airship structurally comprises a hull and a pod, wherein a hydrogen fuel cell device for providing power for the airship is arranged in the pod, buoyancy gas is separated from fuel gas, and hydrogen fuel is only used as an energy form for providing the power for the airship and has no other functions.
At present, hydrogen fuel is stored in a high-pressure steel cylinder mode and enters a fuel cell stack through a pipeline valve to provide power, and the mode easily causes damage and even explosion of the fuel cell stack, thereby threatening the safety of an airship.
Accordingly, there is a need for improvements in the art.
Disclosure of Invention
The invention aims to solve the problems of a small unmanned airship using hydrogen energy as power, namely, the small unmanned airship with high height holding capacity, the light weight of an airship power device and reliable safety.
In order to solve the technical problem, the invention provides a small unmanned airship using hydrogen-helium hybrid energy, which comprises an air bag and a power device;
the air bag is filled with hydrogen/helium mixed gas mixed according to a certain proportion as buoyancy lifting gas of the airship;
the power plant comprises a hydrogen fuel cell stack and a motor which are connected with each other;
the air bag is connected with the hydrogen fuel cell set through a hydrogen-helium mixed gas loop and used for providing reaction hydrogen/helium mixed gas for the hydrogen fuel cell power system; the external air is connected with the hydrogen fuel cell stack through an air loop and is used for providing reaction oxygen for the hydrogen fuel cell power system.
As an improvement of the small unmanned airship using the hydrogen-helium hybrid energy source, the invention comprises the following steps:
and the hydrogen-helium mixed gas loop is also provided with a water-gas separation device at a gas return port of the hydrogen fuel cell set, and the water-gas separation device is used for separating water gas contained in tail gas and preventing the water gas from entering the air bag.
As an improvement of the small unmanned airship using the hydrogen-helium hybrid energy source, the invention comprises the following steps:
the volume ratio of hydrogen in the hydrogen/helium mixed gas is 1-35%.
As an improvement of the small unmanned airship using the hydrogen-helium hybrid energy source, the invention comprises the following steps:
the operation method of the small unmanned airship comprises the following steps:
filling hydrogen/helium mixed gas in a predetermined proportion in the air bag, and lifting the small unmanned airship under the buoyancy action of the hydrogen/helium mixed gas;
and the hydrogen/helium mixed gas in the air bag is conveyed to a hydrogen fuel cell stack through a pipeline, and the hydrogen fuel cell stack burns the hydrogen/helium mixed gas as fuel to obtain power, so that the small unmanned airship is driven to move.
As an improvement of the small unmanned airship using the hydrogen-helium hybrid energy source, the invention comprises the following steps: the method comprises the following steps:
the hydrogen/helium mixed gas flows out of the air bag and enters the hydrogen fuel cell stack through a hydrogen-helium mixed gas loop; meanwhile, external air enters the hydrogen fuel cell stack through an air loop;
the hydrogen fuel battery pack burns hydrogen/helium mixed gas and air, most hydrogen in the hydrogen/helium mixed gas is consumed, water in the hydrogen/helium mixed gas is filtered by the water-gas separation device, most of the hydrogen/helium mixed gas is helium, and the hydrogen/helium mixed gas flows back to the air bag again; at the same time, the air is depleted of most of its oxygen and then flows back to the outside again.
The small unmanned airship can normally fly and can ensure that no danger caused by damage of the air bag occurs in the flying process. Is safer than a pure hydrogen airship and saves energy than a pure helium airship.
The small unmanned airship using the hydrogen-helium hybrid energy has the technical advantages that:
compared with the prior art, the invention has the advantages that: the hydrogen/helium mixed gas is used as the fuel of the cell instead of pure hydrogen, so that the potential safety hazard of the fuel cell in the operation process can be effectively avoided, and the service life of the fuel cell stack is prolonged. Meanwhile, because hydrogen is directly stored in the air bag, the dependence on a storage medium steel cylinder is reduced, so that the self weight of the airship is reduced, the load capacity of the airship is improved, and the aim of miniaturization is fulfilled.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a small unmanned airship using a hybrid energy source of hydrogen and helium according to the present invention.
In the figure: 1-air bag; 2-hydrogen helium mixed gas loop; 3-air circuit; 4-a power plant; 5-a hydrogen fuel cell stack; 6, a motor; 7-water-gas separation device.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
Example 1 a small unmanned airship using a hybrid energy source of hydrogen and helium, as shown in fig. 1, includes an airbag 1 and a power unit 4.
The air bag 1 is filled with hydrogen/helium mixed gas mixed according to a certain proportion as buoyancy lifting gas of the airship. The power plant 4 includes a hydrogen fuel cell stack 5 and an electric motor 6 connected to each other.
The air bag 1 is connected with a hydrogen fuel cell set 5 through a hydrogen-helium mixed gas loop 2 and is used for providing reaction hydrogen/helium mixed gas for a hydrogen fuel cell power system, and helium is inert gas and does not participate in the reaction of the fuel cell; the outside air is connected to the hydrogen fuel cell stack 5 through an air circuit 3 for supplying the hydrogen fuel cell power system with reactive oxygen.
The hydrogen-helium mixed gas loop 2 is also provided with a water-gas separation device 7 at the return air port of the hydrogen fuel cell stack 5, and the water-gas separation device 7 is used for separating water gas contained in the helium gas to prevent the water gas from entering the air bag 1. The water-gas separation device 7 carries out dehydration treatment on the tail gas after combustion, and the gas mixing effect and the airflow circulation effect are considered under the pumping effect of the water-gas separation device 7, so that an additional complex device is not required to be added.
When needed, the hydrogen/helium mixed gas can directly enter the hydrogen fuel cell stack 5 from the air bag 1 through the hydrogen-helium mixed gas loop 2 to be combusted, so as to provide power for the airship.
The small unmanned airship utilizes hydrogen/helium mixed gas as buoyancy lifting gas and fuel, meanwhile, the hydrogen/helium mixed gas in the air bag 1 can enter the hydrogen fuel cell group 5 through a pipeline to provide power for the airship, and residual helium enters the air bag 1 again for recycling. In addition, the incorporation of helium gas is advantageous for improving the safety of the hydrogen fuel cell stack 5 during operation. Therefore, the small unmanned airship has the characteristics of safety and environmental protection.
The buoyancy gas in the air bag 1 can be gradually reduced when the hydrogen is consumed by burning in the running process of the hydrogen fuel cell stack 5, and the flying height can be gradually reduced by considering the reduction of the buoyancy gas in the running track of the unmanned airship. Therefore, the small unmanned airship has a different running track from that of a conventional airship, can realize the carrying running between two fixed points, and is more energy-saving compared with the conventional airship.
In the above scheme of the present invention, the hydrogen/helium mixed gas is used as the lift gas, and the hydrogen fuel cell stack 5 uses the hydrogen/helium mixed gas as the fuel. First, hydrogen is a clean energy source with high energy density, and the product after combustion is water compared with fuel, which does not burden the environment. However, hydrogen gas has high diffusivity and wide explosion limit at the same time, and the explosion suppression effect of helium gas ensures that the hydrogen gas stored in the air bag has higher safety and does not have violent reaction even if leakage occurs.
Secondly, when helium mixed with a certain proportion enters a power system together, the hydrogen can be effectively prevented from being mixed with air through the membrane electrode, and further a series of safety accidents are caused.
It can be known through calculation that the critical point of the explosion suppression effect of the helium on the hydrogen is about 65%, and the hydrogen can only be stably combusted in the air without violent explosion by continuously increasing the proportion of the helium. Therefore, the volume ratio of the hydrogen in the hydrogen/helium mixed gas is controlled to be 1-35%, the hydrogen/helium mixed gas is used as a stable combustible gas, the airship is powered, potential safety hazards are avoided, and efficient and safe utilization of the hydrogen on the airship is achieved.
In summary, in the small unmanned airship structure of the invention, the hydrogen/helium mixed gas can be used as buoyancy gas to provide excellent air retention capacity for the airship and also can provide power for the airship.
In the scheme of the invention, the hydrogen-oxygen fuel cell device is used for providing power for the airship, so that the structural scheme of the small airship does not need to use other forms of energy, thereby reducing the weight of the airship, being beneficial to improving the load and avoiding the pollution of other forms of energy to the environment.
The operation method of the small unmanned airship comprises the following steps:
filling hydrogen/helium mixed gas in the air bag 1 according to a preset proportion, and lifting the small unmanned airship under the buoyancy action of the hydrogen/helium mixed gas;
the hydrogen/helium mixed gas in the air bag 1 is conveyed to a hydrogen fuel cell stack 5 through a pipeline, and the hydrogen fuel cell stack 5 burns the hydrogen/helium mixed gas as fuel to obtain power, so that the small unmanned airship is driven to move.
The invention relates to a using process of a small unmanned airship using hydrogen-helium hybrid energy, which comprises the following steps:
the hydrogen/helium mixed gas flows out of the air bag 1 and enters a hydrogen fuel cell stack 5 through a hydrogen-helium mixed gas loop 2; meanwhile, outside air enters the hydrogen fuel cell stack 5 through the air circuit 3;
the hydrogen fuel battery pack burns hydrogen/helium mixed gas and air, most hydrogen in the hydrogen/helium mixed gas is consumed, water in the hydrogen/helium mixed gas is filtered by the water-gas separation device 7, most of the hydrogen/helium mixed gas is helium, and the hydrogen/helium mixed gas flows back to the air bag 1 again; at the same time, the air is depleted of most of its oxygen and then flows back to the outside again.
Finally, it is also noted that the above-mentioned lists merely illustrate a few specific embodiments of the invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (5)
1. A small unmanned airship using hydrogen-helium hybrid energy is characterized in that: comprises an air bag (1) and a power device (4);
the air bag (1) is filled with hydrogen/helium mixed gas mixed according to a certain proportion as buoyancy lifting gas of the airship;
the power device (4) comprises a hydrogen fuel cell stack (5) and an electric motor (6) which are connected with each other;
the air bag (1) is connected with a hydrogen fuel cell stack (5) through a hydrogen-helium mixed gas loop (2) and is used for providing a reaction hydrogen/helium mixed gas for the hydrogen fuel cell power system; the external air is connected with a hydrogen fuel cell stack (5) through an air loop (3) and is used for providing reaction oxygen for the hydrogen fuel cell power system.
2. The small unmanned airship using hybrid energy of hydrogen and helium as set forth in claim 1, wherein:
and the hydrogen-helium mixed gas loop (2) is also provided with a water-gas separation device (7) at a gas return port of the hydrogen fuel cell stack (5), and the water-gas separation device (7) is used for separating water gas contained in tail gas to prevent the water gas from entering the air bag (1).
3. The small unmanned airship using hybrid energy of hydrogen and helium as set forth in claim 2, wherein:
the volume ratio of hydrogen in the hydrogen/helium mixed gas is 1-35%.
4. A small unmanned airship using hybrid energy of hydrogen and helium as defined in claim 3, wherein:
the operation method of the small unmanned airship comprises the following steps:
filling hydrogen/helium mixed gas in a predetermined proportion in the air bag (1), and lifting the small unmanned airship under the buoyancy action of the hydrogen/helium mixed gas;
the hydrogen/helium mixed gas in the air bag (1) is conveyed to a hydrogen fuel cell stack (5) through a pipeline, and the hydrogen fuel cell stack (5) burns the hydrogen/helium mixed gas as fuel to obtain power, so that the small unmanned airship is driven to move.
5. The small unmanned airship using hybrid energy of hydrogen and helium as set forth in claim 4, wherein: the method comprises the following steps:
the hydrogen/helium mixed gas flows out of the air bag (1) and enters a hydrogen fuel cell stack (5) through a hydrogen-helium mixed gas loop (2); meanwhile, external air enters the hydrogen fuel cell stack (5) through the air loop (3);
the hydrogen fuel battery pack burns hydrogen/helium mixed gas and air, most hydrogen in the hydrogen/helium mixed gas is consumed, water in the hydrogen/helium mixed gas is filtered by the water-gas separation device (7), most of the hydrogen/helium mixed gas is divided into helium, and the hydrogen/helium mixed gas flows back to the air bag (1) again; at the same time, the air is depleted of most of its oxygen and then flows back to the outside again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110238018.5A CN113148101A (en) | 2021-03-04 | 2021-03-04 | Small unmanned airship using hydrogen-helium hybrid energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110238018.5A CN113148101A (en) | 2021-03-04 | 2021-03-04 | Small unmanned airship using hydrogen-helium hybrid energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113148101A true CN113148101A (en) | 2021-07-23 |
Family
ID=76884262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110238018.5A Pending CN113148101A (en) | 2021-03-04 | 2021-03-04 | Small unmanned airship using hydrogen-helium hybrid energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113148101A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254054A (en) * | 1998-11-12 | 2000-05-24 | 麻红生 | Fuel supplying device for airship |
| US20040155149A1 (en) * | 2003-02-06 | 2004-08-12 | Vasilios Dossas | Hydrogen lighter-than-air ship |
| CN204937453U (en) * | 2015-07-21 | 2016-01-06 | 中国科学院光电研究院 | A kind of hydrogen energy source dirigible |
| CN105329434A (en) * | 2015-11-10 | 2016-02-17 | 四川蒙特新能源科技有限公司 | Environment-friendly airship system taking helium as lifting power |
| CN107200120A (en) * | 2016-03-16 | 2017-09-26 | 上海重塑能源科技有限公司 | Fuel cell unmanned plane |
| CN108928456A (en) * | 2018-06-20 | 2018-12-04 | 温州大学 | The large-scale or compact ultra-large type rigid or half rigid big voyage dirigible of high speed |
| CN210681120U (en) * | 2019-06-24 | 2020-06-05 | 王树强 | Internal and external double-air-bag safe floating air ball |
-
2021
- 2021-03-04 CN CN202110238018.5A patent/CN113148101A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254054A (en) * | 1998-11-12 | 2000-05-24 | 麻红生 | Fuel supplying device for airship |
| US20040155149A1 (en) * | 2003-02-06 | 2004-08-12 | Vasilios Dossas | Hydrogen lighter-than-air ship |
| CN204937453U (en) * | 2015-07-21 | 2016-01-06 | 中国科学院光电研究院 | A kind of hydrogen energy source dirigible |
| CN105329434A (en) * | 2015-11-10 | 2016-02-17 | 四川蒙特新能源科技有限公司 | Environment-friendly airship system taking helium as lifting power |
| CN107200120A (en) * | 2016-03-16 | 2017-09-26 | 上海重塑能源科技有限公司 | Fuel cell unmanned plane |
| CN108928456A (en) * | 2018-06-20 | 2018-12-04 | 温州大学 | The large-scale or compact ultra-large type rigid or half rigid big voyage dirigible of high speed |
| CN210681120U (en) * | 2019-06-24 | 2020-06-05 | 王树强 | Internal and external double-air-bag safe floating air ball |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103708015B (en) | A kind of double; two diesel generating set and lithium battery hybrid power boats and ships structure and control method | |
| US6568633B2 (en) | Fuel cell powered electric aircraft | |
| US20030230671A1 (en) | Fuel cell powered electric aircraft | |
| CN102060107B (en) | Energy supply system for stratosphere electricity-electricity hybrid solar airship | |
| CN107140229B (en) | Energy supply system for staying unmanned aerial vehicle | |
| US20220131165A1 (en) | Aircraft electrical power supply system and method of supplying electrical power in an aircraft | |
| CN102211657A (en) | Ship electric propulsion system with hybrid power supply of diesel generator set and power battery | |
| CN105140553A (en) | Mobile charging station with multiple groups of methanol-water reforming hydrogen production and power generation modules and method | |
| CN207631504U (en) | Hydrogen energy source fuel cell fixes wing aircraft | |
| CN107585316A (en) | A kind of new energy mixed power supply system for High Altitude UAV | |
| CN215753045U (en) | Hybrid vertical take-off and landing fixed wing unmanned aerial vehicle power system | |
| CN216269857U (en) | Methanol reforming hydrogen production fuel cell electric ship capable of safely using hydrogen | |
| WO2017107253A1 (en) | Hydrogen-energy pure electric power assembly | |
| CN113148101A (en) | Small unmanned airship using hydrogen-helium hybrid energy | |
| CN208324953U (en) | A kind of bull-dozer of hybrid power driving | |
| CN110071570A (en) | A kind of elevator emergency power-supply system and control method based on fuel cell and super capacitor | |
| CN205248374U (en) | Portable charging station with multiunit methanol -water reformation hydrogen manufacturing power mode | |
| US20230117737A1 (en) | Lighter-than-air craft with hydrogen propulsion | |
| CN103247811A (en) | Electric sweeper power system driven by hydrogen cells | |
| CN2913083Y (en) | Mixed Power system of fuel battery engine and super capacity | |
| CN210391534U (en) | Lithium ion battery-magnesium air battery hybrid power system for new energy ship | |
| CN205326828U (en) | Liquid stream electric motor car system | |
| CN219286469U (en) | On-board hydrogen fuel cell structure for small and medium-sized aircraft | |
| CN114300790A (en) | Deep sea hydrogen fuel cell system | |
| CN211265627U (en) | Hydrogen fuel cell engine using liquid oxygen as auxiliary agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210723 |