JPS6345101A - Reactor for hydrogen occlusion alloy - Google Patents
Reactor for hydrogen occlusion alloyInfo
- Publication number
- JPS6345101A JPS6345101A JP61186784A JP18678486A JPS6345101A JP S6345101 A JPS6345101 A JP S6345101A JP 61186784 A JP61186784 A JP 61186784A JP 18678486 A JP18678486 A JP 18678486A JP S6345101 A JPS6345101 A JP S6345101A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen
- hydrogen gas
- heat
- heat transfer
- alloy
- 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
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 39
- 239000000956 alloy Substances 0.000 title claims abstract description 39
- 239000001257 hydrogen Substances 0.000 title claims abstract description 37
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 238000005192 partition Methods 0.000 claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005338 heat storage Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000004681 metal hydrides Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C11/00—Use of gas-solvents or gas-sorbents in vessels
- F17C11/005—Use of gas-solvents or gas-sorbents in vessels for hydrogen
-
- 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
- Y02E60/32—Hydrogen storage
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、熱交換器、蓄熱器、水素ガス供給タンク等と
して用いられる水素吸蔵合金の反応装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hydrogen storage alloy reaction device used as a heat exchanger, a heat storage device, a hydrogen gas supply tank, etc.
近年、水素貯蔵用金属水素化物すなわち水素吸蔵合金の
水素ガスを吸蔵、放出する際の発熱、吸熱反応を熱交換
器や蓄熱器に利用することや、比較的低圧、高温で多量
の水素ガスを吸蔵する性質を水素ガス燃料エンジン等の
燃料供給タンクに利用することが試みられている。In recent years, metal hydrides for hydrogen storage, that is, hydrogen storage alloys, have been developed to utilize the exothermic and endothermic reactions that occur when storing and releasing hydrogen gas in heat exchangers and heat storage devices, and to store large amounts of hydrogen gas at relatively low pressures and high temperatures. Attempts have been made to utilize this occlusion property in fuel supply tanks for hydrogen gas fueled engines and the like.
水素吸蔵合金は、水素ガスを吸蔵した状態と放出した状
態で体積が１０〜２５％程度変化すること、水素ガスの
吸蔵、放出が迅速に行われるようにすること、単位重量
当たりの水素ガスの吸蔵量を大とすること等の理由から
、微粒子として用いられる。したがって、熱交換器に限
らず、蓄熱器や燃料タンクにおいても、水素吸蔵合金の
偏在や放出水素ガスへの混入の防止対策を必要とする。The hydrogen storage alloy must have a volume that changes by about 10 to 25% between the state in which hydrogen gas is stored and the state in which it is released, the hydrogen gas storage and release to occur quickly, and the hydrogen gas per unit weight. It is used as fine particles for reasons such as increasing storage capacity. Therefore, not only in heat exchangers but also in heat storage units and fuel tanks, measures are required to prevent the uneven distribution of hydrogen storage alloys and their contamination with released hydrogen gas.
さらに、水素吸蔵合金は熱伝導率が比較的小さいと言う
こともあるから、水素吸蔵合金の発熱や吸熱を効率よく
反応容器壁に伝達する対策も必要とする。この対策は、
熱交換器において特に必要であるが、蓄熱器や燃料供給
タンクにおいても水素ガス吸蔵、放出の速度や効率を高
めるために利用される。Furthermore, since the hydrogen storage alloy has a relatively low thermal conductivity, measures are required to efficiently transfer heat generation and heat absorption from the hydrogen storage alloy to the walls of the reaction vessel. This measure is
Although it is particularly necessary in heat exchangers, it is also used in heat storage units and fuel supply tanks to increase the speed and efficiency of hydrogen gas storage and release.
本発明は、上述の対策を備えた効率のよい熱交換器や燃
料供給タンク等として利用される水素吸蔵合金の反応装
置の提供を目的とする。An object of the present invention is to provide a hydrogen storage alloy reaction device that is equipped with the above-mentioned measures and can be used as an efficient heat exchanger, fuel supply tank, or the like.
本発明は、一定の形状に成形されている水素吸蔵合金を
収納する反応筒が反応筒と熱的に接続している伝熱隔壁
によって水素吸蔵合金の収納室を長さ方向に仕切られて
おり、伝熱隔壁を貫通して各収納室に臨む水素ガス通路
と外部と各収納室とを連絡する水素ガス給排管とが設け
られていることを特徴とする水素ガス吸蔵合金の反応装
置にあり、この構成によって上記目的を達成する。In the present invention, a reaction tube housing a hydrogen storage alloy molded into a certain shape is partitioned in the length direction by a heat transfer partition that is thermally connected to the reaction tube. , a hydrogen gas storage alloy reaction device characterized by being provided with a hydrogen gas passageway penetrating a heat transfer partition wall and facing each storage chamber, and a hydrogen gas supply/discharge pipe communicating between the outside and each storage chamber. This configuration achieves the above objective.
第１図及び第２図はそれぞれ本発明反応装置の一例を示
し、第１図及び第２図のそれぞれＡは縦断面図、ＢはＡ
のｘ−ｘ矢視図、Ｃは合金収納室３に収納される一定の
形状に成形されている水素吸蔵合金６である。FIGS. 1 and 2 each show an example of the reactor of the present invention, and in each of FIGS. 1 and 2, A is a longitudinal cross-sectional view, and B is A.
In the x-x arrow view of FIG.
図においてｌは反応筒、２は反応筒１の内壁と熱的に接
続して反応筒１の内部を長さ方向に区分している伝熱隔
壁、３は伝熱隔壁２によって区分されてそれぞれに、一
定の形状に成形されている水素吸蔵合金６を収納してい
る収納室、４は伝熱隔壁２を貫通して反応筒１の長さ方
向に伸び、各収納室に臨んでいる水素ガス通路である。In the figure, l is a reaction tube, 2 is a heat transfer partition that is thermally connected to the inner wall of reaction tube 1 and divides the inside of reaction tube 1 in the length direction, and 3 is a partition partitioned by heat transfer partition 2, respectively. A storage chamber 4 houses a hydrogen storage alloy 6 molded into a certain shape, and a hydrogen storage chamber 4 extends in the length direction of the reaction tube 1 through the heat transfer partition wall 2 and faces each storage chamber. It is a gas passage.
本発明で用いられる一定の形状に成形された水素吸蔵合
金６は、例えば合金微粒子を多孔性金属被膜内に封じ込
めるマイクロカプセル化を施したものを圧縮成形したも
ののように水素の吸蔵−放出を繰り返しても一定の形状
を保つという特徴を有している。The hydrogen storage alloy 6 molded into a certain shape used in the present invention repeatedly absorbs and releases hydrogen, for example, by compressing and molding micro-encapsulated alloy particles in a porous metal film. It has the characteristic that it maintains a constant shape even when it is used.
水素ガスは給排管５から反応筒１内に送り込まれ、水素
ガス通路４を通って各収納室３の水素吸蔵合金６に吸蔵
され、水素吸蔵合金６から放出される水素ガスは上記と
同じ通路を逆に通って水素ガス給排管５に排出されるよ
うにしている。第２図Ａに示されるように安全のため水
素ガス給排管５にフィルター７を挿入しても第１図Ａの
ように挿入しなくてもよい、水素吸蔵合金６と反応筒１
の間の熱の伝達は、一部は水素吸蔵合金６内の熱伝導の
みで行なわれるが、伝熱隔壁２によって効率よく行なわ
れる。水素吸蔵合金６に水素ガスを吸蔵、放出されると
きは、反応が温度律速であることから、それらが効率よ
く迅速に行なわれるように１反応筒１の外側をそれぞれ
吸蔵、放出して適当な温度の水等で冷却、加熱する。第
２図に示す反応装置では、中心に熱媒油′Ｎ１８を配設
して、伝熱面積を増加させると共に反応装置内の温度勾
配を増加させて、反応熱の伝熱の向上を図っている。Hydrogen gas is sent into the reaction tube 1 from the supply/discharge pipe 5, passes through the hydrogen gas passage 4, and is stored in the hydrogen storage alloy 6 in each storage chamber 3, and the hydrogen gas released from the hydrogen storage alloy 6 is the same as above. The hydrogen gas is discharged into the hydrogen gas supply/discharge pipe 5 by passing through the passage in the opposite direction. As shown in FIG. 2A, a filter 7 may be inserted into the hydrogen gas supply/discharge pipe 5 for safety, but it does not need to be inserted as shown in FIG. 1A. Hydrogen storage alloy 6 and reaction tube 1
The heat transfer between the hydrogen absorbing alloy 6 and the hydrogen absorbing alloy 6 is carried out in part by heat conduction only, but is efficiently carried out by the heat transfer partition wall 2. When hydrogen gas is stored and released into the hydrogen storage alloy 6, the reaction rate is determined by temperature. Therefore, in order to ensure that the reaction occurs efficiently and quickly, the outside of each reaction column 1 is used to store and release hydrogen gas at an appropriate rate. Cool or heat with hot water, etc. In the reactor shown in Fig. 2, heat transfer oil 'N18 is placed in the center to increase the heat transfer area and increase the temperature gradient within the reactor to improve the heat transfer of reaction heat. There is.
以上いずれの反応装置においても、一定の形状に成形さ
れた水素吸蔵合金６を用いているため水素吸蔵合金が、
水素ガスへ混入することがないことから水素吸蔵合金の
偏在が起らず合金が外部に流出することも起らない。In any of the above reactors, since the hydrogen storage alloy 6 formed into a certain shape is used, the hydrogen storage alloy is
Since it is not mixed into hydrogen gas, uneven distribution of the hydrogen storage alloy does not occur, and the alloy does not leak to the outside.
伝熱隔壁２に微細な水素ガスの流通孔を設けて、隣合う
収納室３０間を水素ガスが流通し得るようにしてもよい
し、伝９Ｊ％隔壁２が水素ガスの流通を許さないもので
あってもよい。Fine hydrogen gas flow holes may be provided in the heat transfer partition 2 to allow hydrogen gas to flow between adjacent storage chambers 30, or the heat transfer partition wall 2 may not allow hydrogen gas to flow. It may be.
第２図の伝熱隔壁２は外周端面で反応筒１の内壁と熱的
にｖｃ続しており、第１図の伝熱隔壁２は、外周に設け
たフランジ部の外周面での反応筒１の内壁と熱的に接続
しているが、第２図の反応装置に第１図のような伝熱隔
壁２を用いるようにしても、：５１図の反応装置に第２
図のような伝熱隔壁２を用いるようにしてもよい。The heat transfer partition wall 2 shown in FIG. 2 is thermally connected to the inner wall of the reaction tube 1 at the outer peripheral end surface, and the heat transfer partition wall 2 shown in FIG. However, even if the heat transfer partition wall 2 as shown in Fig. 1 is used in the reactor shown in Fig. 2, the
A heat transfer partition wall 2 as shown in the figure may be used.
一定の形状に成形した水素吸蔵合金６の厚さは伝熱隔壁
２の間隔を決定するが、水素吸蔵合金６が水素を吸蔵す
るとき膨張する性質を有するとき、外径や内径は膨張を
考慮して、反応筒に過大な力を与えない寸法にするのが
好ましい、また水素吸蔵合金６の軸方向の膨張による反
応筒１や伝熱隔壁２に働く軸方向の圧縮力が一定値を越
えないようにするため、一部の合金収納室３に水素吸蔵
合金６を収納する代りに軸方向に変形するバネを挿入し
てもよい。The thickness of the hydrogen storage alloy 6 formed into a certain shape determines the spacing between the heat transfer partition walls 2, but when the hydrogen storage alloy 6 has the property of expanding when storing hydrogen, the outer diameter and inner diameter should take expansion into account. It is preferable to use dimensions that do not apply excessive force to the reaction tube, and also to ensure that the axial compressive force acting on the reaction tube 1 and the heat transfer partition wall 2 due to the axial expansion of the hydrogen storage alloy 6 exceeds a certain value. In order to prevent this, instead of storing the hydrogen storage alloy 6 in some of the alloy storage chambers 3, a spring that deforms in the axial direction may be inserted.
本９．１ＪＩの反応装こは、水素吸蔵合金の偏在や放出
水素ガスへの水素吸蔵合金の混入が生じることなく、反
応筒と水素吸蔵合金の間の熱伝達効率が優れ、反応筒の
長さが長くなっても吸蔵、放出反応の効率が殆んど変ら
ないという優れた効果を奏する。The reaction equipment of this 9.1JI has excellent heat transfer efficiency between the reaction tube and the hydrogen storage alloy without uneven distribution of the hydrogen storage alloy or mixing of the hydrogen storage alloy into the released hydrogen gas, and has a long reaction tube length. This has an excellent effect in that the efficiency of the occlusion and desorption reactions remains almost unchanged even if the length of the reaction becomes longer.
５Ｓ１図、第２図はそれぞれ本発明反応装置の一例を示
し、第１図、第２図のＡは縦断面図、ＢはＡのｘ−ｘ矢
視図、Ｃは水素吸蔵合金６の形状である。
ｌ・・Φ反応筒
２會・・伝熱隔壁
３・・・水素吸蔵合金収納室
４・・・水素ガス通路
５争拳・水素ガス給排管
６・拳・一定の形状に成形された水素吸蔵合金７・・・
フィルター
８・・・熱媒通路5S1 and 2 each show an example of the reactor of the present invention, where A in FIGS. 1 and 2 is a longitudinal sectional view, B is a xx-x arrow view of A, and C is the shape of the hydrogen storage alloy 6. It is. l... Φ reaction tube 2... heat transfer partition 3... hydrogen storage alloy storage chamber 4... hydrogen gas passage 5 fist, hydrogen gas supply and discharge pipe 6, fist, hydrogen molded into a certain shape Storage alloy 7...
Filter 8...heat medium path
Claims (1)
る反応筒が反応筒と熱的に接続している伝熱隔壁によっ
て水素吸蔵合金の収納室を長さ方向に仕切られており、
伝熱隔壁を貫通して各収納室に臨む水素ガス通路と外部
と各収納室とを連絡する水素ガス給排管とが設けられて
いることを特徴とする水素ガス吸蔵合金の反応装置1. A reaction tube that houses a hydrogen storage alloy formed into a certain shape is partitioned in the length direction by a heat transfer partition that is thermally connected to the reaction tube.
A reaction device for a hydrogen gas storage alloy, characterized in that it is provided with a hydrogen gas passage that penetrates a heat transfer partition wall and faces each storage chamber, and a hydrogen gas supply and discharge pipe that communicates the outside and each storage chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61186784A JPS6345101A (en) | 1986-08-11 | 1986-08-11 | Reactor for hydrogen occlusion alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61186784A JPS6345101A (en) | 1986-08-11 | 1986-08-11 | Reactor for hydrogen occlusion alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6345101A true JPS6345101A (en) | 1988-02-26 |
Family
ID=16194533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61186784A Pending JPS6345101A (en) | 1986-08-11 | 1986-08-11 | Reactor for hydrogen occlusion alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6345101A (en) |
-
1986
- 1986-08-11 JP JP61186784A patent/JPS6345101A/en active Pending
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