CN2658543Y - Metal hydride storage device with pressure reducing valve - Google Patents
Metal hydride storage device with pressure reducing valve Download PDFInfo
- Publication number
- CN2658543Y CN2658543Y CN 200320101562 CN200320101562U CN2658543Y CN 2658543 Y CN2658543 Y CN 2658543Y CN 200320101562 CN200320101562 CN 200320101562 CN 200320101562 U CN200320101562 U CN 200320101562U CN 2658543 Y CN2658543 Y CN 2658543Y
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- Prior art keywords
- hydrogen
- metal hydride
- reservoir vessel
- reduction valve
- hydrogen storage
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Abstract
The utility model relates to a metal hydride hydrogen-storing device with a pressure-reducing valve comprising a plurality of storage vessels, wherein each storage vessel is provided with a release port; wherein a gas guide tube having one end communicated with the release port of the storage vessel is arranged in each storage vessel, and also a metal hydride is arranged in each storage vessel; a plurality of heat sinks are sleeved at the periphery of each storage vessel, each heat sink is provided with a plurality of punches having same directional rolling edges, gas channels of each storage vessel are connected into an integral through conduits, one channel of the conduit is connected with one end of a ball valve, the other end of the ball valve is connected with the inlet of the pressure-reducing valve. The utility model can release hydrogen stably, thereby improving heat exchange efficiency obviously.
Description
Technical field
The utility model relates to a kind of metal hydride hydrogen storage unit of using about fuel cell that has reduction valve.
Background technique
Along with human civilization advance, the demand of fossil energies such as coal, oil, rock gas is increased day by day, and the use of these traditional energies, cause the severe exacerbation of ecotope again, for example greenhouse effect and acid rain etc.Coal, oil, rock gas etc. are non-renewable energy resources, and reserves on earth are limited, and the mankind can not depend on them for a long time.For the consideration of energy crisis and environmental protection, advanced country in the world is all at the new alternative energy of research and development, such as solar energy, wind energy, Hydrogen Energy, nuclear energy, tidal energy, geothermal power, biomass energy or the like.
Hydrogen fuel calorific value height, coal, oil and the hydrogen of burning identical weight, the energy that hydrogen is emitted is 3 times of oil, 6 times of coal; The product of hydrogen burning is a water, and environmentally safe is really realized zero-emission; The wide material sources of hydrogen, renewable and recycling, so Hydrogen Energy more and more is subject to people's attention as important secondary energy and clean energy resource.
From the angular divisions of Hydrogen Energy, the usage mode of hydrogen mainly contains two kinds: the one, be used for burning, and Hydrogen Energy is converted into heat energy or electric energy; The 2nd, the electricity generating device (as fuel cell) by the advanced person is converted into electric power with Hydrogen Energy.Fuel cell is that Hydrogen Energy is used one of most promising system, is characterized in: the energy conversion rate height, and the fuel variation, exhaust is clean, and noise is low, and environmental pollution is few, and reliability and maintenance are good etc.At present, fuel cell technology has had the development of advancing by leaps and bounds, and is expected to realize in the near future industrialization.Required fuel gas is hydrogen (High Purity Hydrogen) during operation of fuel cells, and oxygenant is an oxygen, and hydrogen and oxygen generate water by electrochemical reaction, convert chemical energy to electric energy simultaneously.Fuel cell mainly is made up of 4 parts, i.e. anode, negative electrode, electrolyte and external circuit.Fuel cell is pressed electrolyte and is divided, and has five big classes: alkaline type, phosphatic type, solid oxide type, fused carbonate type and proton exchange model.What application was maximum at present is Proton Exchange Membrane Fuel Cells (proton exchange membrane fuel cell is called for short PEMFC).Yet, the act as a fuel hydrogen source of battery of hydrogen, its storing mode still exists many problems at present, and this has seriously restricted the application of fuel cell.
Existing fuel cell hydrogen source adopts gas cylinder, liquid hydrogen mode mostly, and its defective is: the volume hydrogen-storage density is low; High to using container performance to require; There is explosion risk; Storage hydrogen device fails effectively to increase container surface area, and causing the hydride hydrogen-storing material to be inhaled when putting hydrogen can not carry out sufficient heat exchange with external environment, has influenced its dynamic performance, inhales hydrogen discharging rate and slows down.
The model utility content
In order to overcome the deficiencies in the prior art, the purpose of this utility model provides a kind of metal hydride hydrogen storage unit that has reduction valve, and this device can be than stablizing hydrogen supply under the rugged environment even-13 ℃ the time; By reduction valve is set, make the interior pressure of hydrogen-storing device reduce to the working pressure of small-power fuel cell; Leave size leeway when design and processing radiating fin, radiating fin and container are reached closely cooperate, increased the heat diffusion area of container, thereby improved the heat exchange efficiency of hydrogen-storing device.
For achieving the above object, the utility model is taked following design proposal: a kind of metal hydride hydrogen storage unit that has reduction valve, comprise two reservoir vessels at least, and each reservoir vessel has an internal diameter, a bottom and a port that disengages with respect to this bottom; More than one air pipe, an end of air pipe is positioned in the reservoir vessel, and the other end communicates with the port that disengages of reservoir vessel; Be equipped with metal hydride in the reservoir vessel; The some radiating fin that are placed on the reservoir vessel periphery have on each radiating fin more than one to the punching of same direction flange, and the punching internal diameter is greater than the external diameter of reservoir vessel; The gas passageway of each reservoir vessel is connected as a single entity by conduit, and one of them path of conduit is connected with ball valve one end, and the other end of ball valve is connected with the reduction valve entrance point.
The opening of described each container is permanent joint threadably, and joint is built-in with and prevents that the alloy fine powder from entering the filter sheet of gas circuit.
Be equipped with the powdered metal hydride AB that mixes by a certain percentage in the reservoir vessel
2Type titanium alloy and heat guiding agent and hardening resisting agent.
Stainless Steel Tube with multi-path (the concrete quantity of path is decided on the quantity of reservoir vessel) links to each other with joint, and the gas passageway with two or more reservoir vessels is connected as a single entity thus; One of them path of Stainless Steel Tube is connected with ball valve one end, and the other end of ball valve is connected (outlet end of reduction valve can link to each other with the gas circuit of fuel cell by flexible pipe) with the reduction valve entrance point; Reduction valve is built-in with diaphragm and spring, the active force that friction by diaphragm and inwall and spring produce diaphragm is realized reducing pressure and the function of voltage stabilizing, after pressure surpasses certain value, reduction valve quits work-and be self-locking, guarantee that outlet pressure can not damage fuel cell.
The utility model has the advantages that: the hydrogen storage material of selecting for use is AB
2The type titanium alloy, this alloy can be put hydrogen even also can stablize in the temperature range work of broad in the time of-13 ℃; Adopt heat guiding agent, improve the pyroconductivity of hydrogen storage material, make hydrogen storage material and container, radiating fin carry out sufficient heat exchange; Adopt hardening resisting agent, slow down material and put efflorescence in the hydrogen process and the generation of the phenomenon that causes hardening in suction; The volume of a container that causes when utilizing hydrogen storage material to inhale hydrogen expands, and radiating fin and container is reached closely cooperate, and has increased the surface area of container thus, makes the heat exchange efficiency of hydrogen-storing device and external environment obviously improve.
Description of drawings
Fig. 1 is the structural representation (analysing and observe) of the metal hydride hydrogen storage unit of the utility model band reduction valve
Fig. 2 is the cross-sectional view of single jar of storage hydrogen
Fig. 3 is the profile schematic representation of the metal hydride hydrogen storage unit of band reduction valve
Embodiment
As Fig. 1, shown in Figure 3, be metal hydride hydrogen storage unit one embodiment of the utility model band reduction valve: it comprises: three reservoir vessels 10; A plurality of radiating fin 11; Three air pipes 12; Three bottleneck joints 13; A four-way gas circuit pipe 14; One cutting ferrule 15; One ball valve 16 and a reduction valve 17.Air pipe 12 places in the reservoir vessel 10; Remaining space is filled AB in the reservoir vessel
2The type titanium is hydrogen storage material and a certain proportion of heat guiding agent and hardening resisting agent 20, bottleneck joint 13 built-in filter sheets 22, some radiating fin 11 place outside the reservoir vessel 10, each radiating fin 11 has three punchings 21 to same direction flange, the internal diameter of punching roughly equates with the reservoir vessel external diameter, flange both can be separated from one another with several (more than one) radiating fin, also can play the effect of support.The gas passageway 14 of each reservoir vessel is connected as a single entity by Stainless Steel Tube, and one of them path of Stainless Steel Tube is connected with ball valve 16 1 ends, and the other end of ball valve is connected with reduction valve 17 entrance points.
Referring to Fig. 2, what this reservoir vessel 10 had an inside diameter D i, an outer diameter D o, a bottom 18 and relative this bottom disengages port one 9.
Be convenient metal hydride hydrogen storage unit of making the utility model band reduction valve, reservoir vessel 10 formed body in advance can be selected lightweight, high-intensity metallic material for use, can bear certain pressure and temperature, the preferably, be to adopt spinning process to make and the aluminum alloy after Overheating Treatment is in time imitated processing, its limit is withstand voltage to reach 25MPa.
The hydrogen storage material that the utility model is selected for use is AB
2Type Ti
1-xZr
x(MnCrVFe)
2Titanium alloy, this alloy forms through vacuum induction melting, and the ingot casting after the melting is broken into-60 purpose powder, this alloy can activate after putting hydrogen through 2～3 circulation suctions fully, hydrogen storage content is about about 2wt%, and it can be in bigger temperature range work, even also can stablize in the time of-13 ℃ and put hydrogen; Add heat guiding agent, it is made by lightweight, thermal conductivity height and material with certain intensity, can improve hydrogen storage material and extraneous heat exchange efficiency; Add hardening resisting agent, this material has lightweight and the higher characteristics of intensity, can prevent that hydrogen storage material from moving the generation of the phenomenon that hardens that causes because of efflorescence and powder.
The porous metals pipe of air pipe 12 for adopting powder metallurgy process to make, the one end is fixed in the reservoir vessel bottom, and the other end disengages port one 9 with container and communicates, and guarantees the unobstructed of gas circuit.
The opening of described each container is permanent joint threadably, the filter sheet 22 that is equipped with in the joint 13, can be repressed by withstand voltage metallic material, sintering forms, the porous metals sheet that makes via compacting, sintering is the best, the aperture is about 1～5 micron, can prevent that the fine powder of hydrogen storage material from entering in the gas circuit pipe 14.
Radiating fin 11 by lightweight and metal with certain intensity through being stamped to form, have a plurality of punchings (the concrete quantity of punching is decided on the quantity of reservoir vessel) on the radiating fin to same direction flange, the punching internal diameter is slightly larger than reservoir vessel outer diameter D o, cause the dilatancy of container behind the hydrogen storage material suction hydrogen, punching 21 and reservoir vessel 10 are reached to closely cooperate, make radiating fin 11 and effective area of contact of reservoir vessel 10 increase, thereby improved the heat exchange efficiency of hydrogen-storing device, adjacent radiating fin can be separated, be supported to the flange of each radiating fin simultaneously.
The Stainless Steel Tube 14 that will have multi-path is connected with the joint 13 of bottle mouth position in interior cutting ferrule mode, remaining a path is connected with ball valve 16 1 ends, the other end of ball valve 16 links to each other with the entrance point of reduction valve 17, reduction valve 17 with screw on frame shell 23, it is by lightweight, withstand voltage metal is made, friction by inner diaphragm and inwall, and spring reduces pressure to the active force that diaphragm produces, calculate and Design and Machining through accurate, its inlet pressure reaches as high as 6MPa, outlet pressure still can be between 0.01～0.03MPa (gauge pressure), and this valve has auto-lock function, and (inlet pressure is above after the certain numerical value, this valve will cut off gas circuit, outlet end does not have gas and flows out), thus guarantee that fuel cell is not damaged.
Use before this metal hydride hydrogen storage unit, earlier with high-purity hydrogen via ball valve 16, gas circuit pipe 14, container 10 disengage port one 9 and hydrogen storage material is given in air pipe 12 guidings, the hydrogen that will be stored in then in the metal hydride discharges fully, repeat according to this 2～3 times, after treating that material activates fully, charge into high-purity hydrogen again in order to using.
The hydride hydrogen-storing material that is equipped with in the metal hydride hydrogen storage unit of the utility model band reduction valve, can with hydric safe be stored in wherein, discharge hydrogen during use.
The corresponding at a certain temperature certain suction hydrogen balance of hydride hydrogen-storing material is pressed and is put hydrogen balance and presses, and it is inhaled, puts hydrogen balance and presses and increase along with the rising of temperature, reduces along with the reduction of temperature.Fuel cell itself can be worked in the external temperature scope of broad, in order to guarantee its energy normal and stable operation, correspondingly requires the hydride hydrogen-storing material also can put hydrogen in the external temperature scope of broad.At present, the hydride hydrogen-storing material hydrogen desorption capacity when being lower than 0 ℃ that is applied to store up the hydrogen device significantly reduces, have in addition can not put hydrogen.The hydride hydrogen-storing material that the utility model adopts is inhaled, is put hydrogen balance and presses height, still can normally stably put hydrogen in time below 0 ℃, and hydrogen desorption capacity can not reduce simultaneously.
It is the process of a heat exchange that the hydride hydrogen-storing material is inhaled the process of putting hydrogen, and heat release when inhaling hydrogen is then absorbed heat when putting hydrogen.The hydride hydrogen-storing material is inhaled when putting hydrogen, mainly utilize the vessel surface and the external world to carry out heat exchange, and existing storage hydrogen device fails effectively to increase container surface area, cause the hydride hydrogen-storing material to be inhaled when putting hydrogen and can not carry out sufficient heat exchange with external environment, influenced its dynamic performance, inhaled hydrogen discharging rate and slow down.The utility model is storing up under the constant situation of hydrogen device overall volume, increases the surface area of container, then can improve the heat exchange efficiency of hydrogen storage material, thereby guarantees the stable output of hydrogen.
The metal hydride that the utility model adopted is the low heat conductivity material, has added a certain amount of heat guiding agent and hardening resisting agent in storage hydrogen device, prevents to harden when it from putting hydrogen.
The working pressure of small-power fuel cell is generally between 0.01～0.03MPa (gauge pressure), and the pressure in the metal hydride hydrogen-storing device generally will be higher than 0.03MPa.The utility model is equipped with reduction valve between storage hydrogen device and fuel cell, prevented from influence because of Hydrogen Vapor Pressure is too high fuel battery performance and reached battery is caused damage.
Metal hydride (metal hydride) Chu Qing is a kind of solid-state hydrogen storage technology, compared with prior art, following characteristics is arranged: (1) volume hydrogen-storage density height; (2) need not high-pressure bottle and heat-insulated container; (3) Security is good, no explosion risk; (4) can obtain ultra-pure hydrogen; (5) it is long to recycle the life-span.In a word, compare with conventional method, hydride hydrogen-storing is safer, more flexible and more effective.
The utility model hydrogen-storing device is under no heat exchange medium, the immobilising situation of air, still can stablize hydrogen supply, even in the time of-13 ℃, still can stably export gas, flow remains at 2～3 liters/min, meanwhile, combining closely of radiating fin and container also further improved the non-deformability of container; Pass through reduction valve, the inlet pressure of 0.03～4MPa can be decreased to 0.01～0.03MPa, this valve also has auto-lock function (after inlet pressure surpasses certain numerical value simultaneously, reduction valve will cut off gas circuit, outlet end does not have gas and flows out), prevent to influence fuel battery performance and battery is caused damage, thereby make metal hydride hydrogen storage unit can directly apply to the small-power fuel cell because of Hydrogen Vapor Pressure is too high.
The metal hydride hydrogen storage unit of band reduction valve also can be applicable to solar-photovoltaic technology, semiconductor production with others such as high-purity hydrogen source, heat pump and compressor coolings except that being applied to fuel cell.
Claims (4)
1, a kind of metal hydride hydrogen storage unit that has reduction valve is characterized in that: comprise two reservoir vessels at least, each reservoir vessel has an internal diameter, a bottom and a port that disengages with respect to this bottom; More than one air pipe, an end of air pipe is positioned in the reservoir vessel, and the other end communicates with the port that disengages of reservoir vessel; Be equipped with metal hydride in the reservoir vessel; The some radiating fin that are placed on the reservoir vessel periphery have more than one punching on each radiating fin, the punching internal diameter is greater than the external diameter of reservoir vessel; The gas passageway of each reservoir vessel is connected as a single entity by Stainless Steel Tube, and one of them path of Stainless Steel Tube is connected with ball valve one end, and the other end of ball valve is connected with the reduction valve entrance point.
2, the metal hydride hydrogen storage unit that has reduction valve according to claim 1 is characterized in that: described metal hydride is AB
2The type titanium alloy.
3, the metal hydride hydrogen storage unit that has reduction valve according to claim 1 is characterized in that: the fixing joint of described each vessel port is built-in with and prevents that the alloy fine powder from entering the filter sheet of gas circuit.
4, the metal hydride hydrogen storage unit that has reduction valve according to claim 1 is characterized in that: the some punchings that have on the described radiating fin are the punching to same direction flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101562 CN2658543Y (en) | 2003-10-23 | 2003-10-23 | Metal hydride storage device with pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101562 CN2658543Y (en) | 2003-10-23 | 2003-10-23 | Metal hydride storage device with pressure reducing valve |
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| Publication Number | Publication Date |
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| CN2658543Y true CN2658543Y (en) | 2004-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320101562 Expired - Lifetime CN2658543Y (en) | 2003-10-23 | 2003-10-23 | Metal hydride storage device with pressure reducing valve |
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| CN (1) | CN2658543Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676239A (en) * | 2013-11-29 | 2015-06-03 | 北京有色金属研究总院 | Metal hydride hydrogen storage device |
| CN105371105A (en) * | 2015-10-27 | 2016-03-02 | 北京有色金属研究总院 | Hydrogen-absorption low-strain metal hydride hydrogen storage tank |
| CN106944614A (en) * | 2017-03-16 | 2017-07-14 | 中国计量大学 | A kind of hydrogen storage alloy particle and preparation method thereof |
| CN110081302A (en) * | 2018-01-25 | 2019-08-02 | 本田技研工业株式会社 | High pressure storage tank structural body |
| CN110274149A (en) * | 2018-03-16 | 2019-09-24 | 郑州宇通客车股份有限公司 | A kind of on-board hydrogen gas cylinder |
| CN114484275A (en) * | 2022-01-26 | 2022-05-13 | 海南天宇科技集团有限公司 | Hydrogen storage bottle integration frame with high-efficient heat transfer function |
-
2003
- 2003-10-23 CN CN 200320101562 patent/CN2658543Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676239A (en) * | 2013-11-29 | 2015-06-03 | 北京有色金属研究总院 | Metal hydride hydrogen storage device |
| CN105371105A (en) * | 2015-10-27 | 2016-03-02 | 北京有色金属研究总院 | Hydrogen-absorption low-strain metal hydride hydrogen storage tank |
| CN105371105B (en) * | 2015-10-27 | 2019-03-08 | 北京有色金属研究总院 | A kind of suction hydrogen low strain dynamic hydride hydrogen-storing cylinder |
| CN106944614A (en) * | 2017-03-16 | 2017-07-14 | 中国计量大学 | A kind of hydrogen storage alloy particle and preparation method thereof |
| CN110081302A (en) * | 2018-01-25 | 2019-08-02 | 本田技研工业株式会社 | High pressure storage tank structural body |
| CN110081302B (en) * | 2018-01-25 | 2021-12-07 | 本田技研工业株式会社 | High-pressure storage tank structure |
| CN110274149A (en) * | 2018-03-16 | 2019-09-24 | 郑州宇通客车股份有限公司 | A kind of on-board hydrogen gas cylinder |
| CN110274149B (en) * | 2018-03-16 | 2024-04-19 | 宇通客车股份有限公司 | Vehicle-mounted hydrogen cylinder |
| CN114484275A (en) * | 2022-01-26 | 2022-05-13 | 海南天宇科技集团有限公司 | Hydrogen storage bottle integration frame with high-efficient heat transfer function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131023 Granted publication date: 20041124 |