JPS5826994A - Structure of heat exchanger utilizing metal hydride - Google Patents
Structure of heat exchanger utilizing metal hydrideInfo
- Publication number
- JPS5826994A JPS5826994A JP12536081A JP12536081A JPS5826994A JP S5826994 A JPS5826994 A JP S5826994A JP 12536081 A JP12536081 A JP 12536081A JP 12536081 A JP12536081 A JP 12536081A JP S5826994 A JPS5826994 A JP S5826994A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- hydrogen gas
- holding unit
- heat
- hydrogen
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、金属水素化物を利用した熱交換器の構造に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a heat exchanger using metal hydrides.
ＴｉＭｎ、 ’ｌ’ ｉＦｅ等の水素貯蔵金属は活性化
（水素化）することによシ金属水素化物となり、天竜の
水素を眼瞼脱蔵し、吸蔵過程では発熱し、脱蔵過程では
吸熱することが知られている。金属水素化物のこの性質
を利用することによシ、太陽熱、風力等の自然エネルギ
ーや工場廃熱等を水素と云う化学エネルギーの形で蓄積
し、必要に応じて安定した熱として取出すことの出来る
熱交換器を作ることが出来る。Hydrogen storage metals such as TiMn and 'l' iFe become metal hydrides by activation (hydrogenation) and devolatilize Tenryu's hydrogen in the eyelids, generating heat during the occlusion process and absorbing heat during the devolatilization process. It has been known. By utilizing this property of metal hydrides, it is possible to store natural energy such as solar heat, wind power, industrial waste heat, etc. in the form of chemical energy called hydrogen, and extract it as stable heat as needed. You can make a heat exchanger.
この熱交換器は、上記の目的に対して、金属水素化物の
粒子を保持するスペースと、該スペースに水素Ｓスを供
給しかつ回収するため該スペースに連通する水素ガス通
路と、上記金属水素化物に接して設けられた熱交換管又
は熱交換面とを有し、水素吸・脱蔵時の熱は上記の熱交
換面を介して熱交換流体により供給、回収される。For the above purpose, this heat exchanger has a space for holding metal hydride particles, a hydrogen gas passage communicating with the space for supplying and recovering hydrogen gas to the space, and a hydrogen gas passage for supplying and recovering hydrogen gas to the space, and It has a heat exchange tube or a heat exchange surface provided in contact with the compound, and heat during hydrogen absorption and devolatilization is supplied and recovered by a heat exchange fluid via the heat exchange surface.
従来、上記熱交換器の構造は一般に水素吸脱蔵時の水素
ガスの圧力に耐える耐圧部材と、金属水素化物の保持部
材とが同一部材として作られているため、金属の回収再
装備に際して金属を重量、寸法の大きい保持部材に収容
したま＼工場に持帰のが通例であった。又現地で回収す
る場合においては、金属水素化物は吸・脱蔵の繰返しに
よシ微粉体化するため、保持容器から回収容器への移し
替える際に微粉体化した金属が大気中に飛散することが
避けられず、公害発生の原因となる欠点があった。Conventionally, in the structure of the above-mentioned heat exchanger, the pressure-resistant member that withstands the pressure of hydrogen gas during hydrogen absorption and desorption and the metal hydride holding member are generally made of the same material. It was customary to carry the product back to the factory in a holding member that was large in weight and size. In addition, when recovering on-site, metal hydrides are pulverized through repeated adsorption and devolatilization, so the pulverized metal is scattered into the atmosphere when transferred from the holding container to the collection container. This is unavoidable and has the disadvantage of causing pollution.
この発明は、上記の問題点を解決するのに役立つ熱交換
器の構造を提供することを目的とする。The present invention aims to provide a heat exchanger structure that helps solve the above problems.
以下、本発明を、その実施例を示す図面にもとすいて詳
細に説明する。Hereinafter, the present invention will be explained in detail with reference to drawings showing embodiments thereof.
第１図及び第２図に示す本発明の実施例の熱交換器は水
素吸脱蔵時の水素ガスの圧力に耐える耐圧殻１とその内
部に着脱可能に設けられた金属水素化物保持ユニット２
と、該保持ユニット２の外面と上記耐圧殻１の内面との
間に形成される空間内に充填された充填材３とによ多構
成されぞいる。The heat exchanger according to the embodiment of the present invention shown in FIGS. 1 and 2 includes a pressure shell 1 that can withstand the pressure of hydrogen gas during hydrogen absorption and desorption, and a metal hydride holding unit 2 that is removably installed inside the pressure shell 1.
and a filler 3 filled in a space formed between the outer surface of the holding unit 2 and the inner surface of the pressure shell 1.
耐圧殻１は、耐圧容器の通例に従い、円筒形胴部と球面
状鏡板で形成された本体１ａと、球面状蓋ｌｂトカ夫々
の７ランジでボルト結合されて構成されている。又耐圧
殻１にはその内部に水素ガスを供給し、かつ内部の水素
ガスを回収する水素ガス管４が接続されている。The pressure shell 1 is composed of a main body 1a formed of a cylindrical trunk and a spherical end plate, and a spherical lid 1b, which are connected by bolts at seven flanges, respectively, in accordance with the customary method for pressure containers. Further, a hydrogen gas pipe 4 is connected to the pressure shell 1 for supplying hydrogen gas to the inside thereof and for recovering the hydrogen gas inside.
上記の金属水素化学物保持ユニット２は、適度の通気性
と弾性と強度とを有する材料７１例えば焼結ステンレス
金網をフレームに張って壁体を形成した容器５と、該壁
体の内面−面に・付・毀しまた適度の通気性と断熱性と
体積弾性とを有する断熱材６と、これに囲繞された空間
内に数回往復させて配設した熱交換管７と、上記空間の
残余の部分に充填された金属水素化物粒子８より構成さ
れている。上記の熱交隋７の両端は壁体５を貫通して外
部に伸び耐圧殻１内に装着した状態では耐圧殻１の蓋１
ｂを貫通し、その外部で外部の熱交換流体用配管９と接
続される。The metal hydrogen chemical holding unit 2 includes a container 5 having a wall formed by stretching a frame of a material 71 having appropriate air permeability, elasticity, and strength, for example, a sintered stainless wire mesh, and an inner surface of the wall. A heat exchanger tube 7 is installed in the space surrounded by the heat exchanger tube 7, which is reciprocated several times in the space surrounded by the heat insulator 6, which has appropriate air permeability, heat insulation properties, and bulk elasticity. The remaining portion is made up of metal hydride particles 8 filled in. Both ends of the heat exchanger 7 pass through the wall 5 and extend to the outside, and when installed inside the pressure shell 1, the lid 1 of the pressure shell 1
b, and is connected to external heat exchange fluid piping 9 on the outside.
充填材３は、空隙率が小さくかつ適度の断熱性を有する
断熱材で構成され、上記の金属保持ユニット２を挿入す
る空間を残して耐圧殻１の本体１ａの内面に取付けられ
、蓋１ｂと保持ユニット２との間の充填材３ａは保持ユ
ニットの取外し取付時には取外すことが出来るようにな
っている。The filling material 3 is made of a heat insulating material with a small porosity and suitable heat insulation properties, and is attached to the inner surface of the main body 1a of the pressure shell 1, leaving a space for inserting the metal holding unit 2, and is attached to the inner surface of the main body 1a of the pressure shell 1. The filling material 3a between the holding unit 2 and the holding unit 2 can be removed when the holding unit is removed or installed.
この熱交換器は以上の如く構成されているので、水素貯
蔵金属８に熱を貯蔵させる場合は、外部熱源の熱を、熱
交換流体管７を介して金属８に供給すると、金属８は温
度、圧力条件に応じた水素ガスを放出する。この水素ガ
スは金属保持ユニット内の通気性のある断熱材６及び壁
体５を形成する焼結ステンレス金網より耐圧殻１内の充
填材３の隙間を通って、水素ガス配管４を経て図示しな
いポンプにより別の水素ガス槽に回収される。Since this heat exchanger is configured as described above, when heat is stored in the hydrogen storage metal 8, when heat from an external heat source is supplied to the metal 8 through the heat exchange fluid pipe 7, the metal 8 is heated to a temperature , releases hydrogen gas according to pressure conditions. This hydrogen gas passes through the air-permeable heat insulating material 6 in the metal holding unit and the sintered stainless wire gauze forming the wall 5, passes through the gap between the filler 3 in the pressure shell 1, and passes through the hydrogen gas pipe 4 (not shown). The hydrogen gas is collected by a pump into another hydrogen gas tank.
放熱する場合は、所定の温度、注力条件のもとで、前記
水素ガス槽より水素ガス配管４を経て耐圧殻１内に水素
ガスを供給すると、水素ガスは充填材３の隙間を通シ、
金属保持ユニット２の壁体５の金網及び通気性のある断
熱材６を通って金属水素化物８の層に流入する。そこで
水素ガスは金属８に吸蔵されて金属水素化物の形で貯蔵
され、同時に熱が発生する。この熱は熱交換管７の管壁
を介して熱交換流体に伝達され、暖房装置等の熱熱材６
、同じく弾性と通気性を有する金網製壁体５によシ包囲
されておシ、かつ金属保持ユニット２は体積弾性を有す
る充填材３で囲繞されているので、金属の粒子８が余裕
空間を残さず充填されていても、金属の水素吸脱蔵時の
膨張、収縮は断熱材６、弾性的体積変化及び金網５０弾
性的変形によシ無理なく吸収され、又水素ガスの圧力は
断熱材６の隙間、金網５によシ充猶３の隙間に及ぶので
金属保持ユニット内外の圧力は均衡し保持ユニットの壁
体が破壊することはない。When dissipating heat, when hydrogen gas is supplied from the hydrogen gas tank to the pressure shell 1 through the hydrogen gas pipe 4 under predetermined temperature and concentration conditions, the hydrogen gas passes through the gap in the filler 3,
It flows into the layer of metal hydride 8 through the wire mesh of the wall 5 of the metal holding unit 2 and the breathable insulation 6. There, hydrogen gas is occluded by the metal 8 and stored in the form of metal hydride, and at the same time heat is generated. This heat is transferred to the heat exchange fluid through the tube wall of the heat exchange tube 7, and is transferred to the heat exchange fluid 6 of a heating device or the like.
Since the metal holding unit 2 is surrounded by the wire mesh wall 5 which also has elasticity and air permeability, and the metal holding unit 2 is surrounded by the filler 3 which has bulk elasticity, the metal particles 8 occupy the free space. Even if the metal is completely filled, the expansion and contraction of the metal when it absorbs and desorbs hydrogen is easily absorbed by the insulation material 6, the elastic volume change, and the elastic deformation of the wire mesh 50, and the pressure of hydrogen gas is absorbed by the insulation material. Since the gap 6 is filled with the wire mesh 5 and the gap 3 is filled, the pressure inside and outside the metal holding unit is balanced and the wall of the holding unit is not destroyed.
又、金属水素化物８０層は適度の断熱性を有する断熱材
６の層と、同じく適度の断熱性を有する充填材３の層で
２重に包囲されているので、断熱効果が優れ、有限の金
属の発生熱が熱容量の大きい耐圧殻の加熱に使われたシ
、又その表面から外部に放熱したシすることが防止され
る。さらに充填材３は空隙率の小さい材料が選定されて
いるので、水素脱蔵過程が完了し、水素配管４の弁を閉
じた後装置の温度が自然に低下した場合にも、空隙中に
残留した水素ガスが金属に再吸蔵される量が少なく前記
の熱損失の少いことと相俟って、熱交換器の熱効率の向
上に効果がある。In addition, the 80 layers of metal hydride are double surrounded by a layer of heat insulating material 6 which has moderate heat insulating properties and a layer of filler material 3 which also has moderate heat insulating properties, so it has an excellent heat insulating effect and has a limited amount of heat. This prevents the heat generated by the metal from being used to heat the pressure shell, which has a large heat capacity, and from radiating the heat to the outside from its surface. Furthermore, since the filling material 3 is selected from a material with a low porosity, even if the temperature of the device naturally decreases after the hydrogen devolatilization process is completed and the valve of the hydrogen pipe 4 is closed, it remains in the pores. The amount of the absorbed hydrogen gas that is re-absorbed in the metal is small, which, together with the aforementioned low heat loss, is effective in improving the thermal efficiency of the heat exchanger.
又、断熱材６は通気性壁体５と共にフィルターとして金
属の飛散防止に役立つ。Further, the heat insulating material 6 together with the breathable wall 5 serves as a filter to prevent metal from scattering.
上記の実施例では水素ガス配管４は耐圧殻の蓋ｌｂに設
けた接続口に接続し、充填材３の隙間を通って金属保持
ユニットの通気性壁面５を通して金属に供給し又逆の経
路で回収するものとしたが、水素ガス配管接続口に接続
して充填材３の内部に通気性壁面と近接させて管壁に多
数の孔を設けた水素ガス供給管を配設してもよい。In the above embodiment, the hydrogen gas pipe 4 is connected to a connection port provided in the lid lb of the pressure shell, and is supplied to the metal through the gap in the filler 3 through the permeable wall surface 5 of the metal holding unit, and in the reverse route. Although it is assumed that the hydrogen gas is recovered, a hydrogen gas supply pipe having a large number of holes in the pipe wall may be arranged inside the filling material 3 in close proximity to the permeable wall surface and connected to the hydrogen gas pipe connection port.
金属保持ユニット２は耐圧殻１内に着脱可能に取付けら
れるようにしたため、金属保持ユニット２の製作、保守
点検が容易になり、金属の回収、再装着をユニットごと
着脱して行なうことが出来るので従来問題となった微粉
化した金属の大気中への飛散も防止される。Since the metal holding unit 2 is designed to be removably installed inside the pressure shell 1, manufacturing and maintenance inspection of the metal holding unit 2 are facilitated, and the collection and reinstallation of metal can be carried out by attaching and detaching the entire unit. This also prevents pulverized metal from scattering into the atmosphere, which has been a problem in the past.
さらに耐圧殻内に十分な断熱層が設けられているため、
耐圧殻の外側に保温材を取付けることが不要となシ、保
温材を外部に設ける場合の経年変化、耐候性の問題が解
決され、金属保持ユニットを小型、軽量にすることがで
きる。In addition, there is a sufficient insulation layer within the pressure shell, so
It is not necessary to attach a heat insulating material to the outside of the pressure shell, the problems of aging and weather resistance when providing a heat insulating material outside are solved, and the metal holding unit can be made smaller and lighter.
以上の如く、本発明によれば、金属水素化物の回収、再
装着が簡単になシ金属水素化物の飛散による大気汚染が
防止され、金属の水素吸・脱蔵時の膨張、収縮に対して
も金属保持ユニットに過大な応力が掛って破損すること
も防止される。As described above, according to the present invention, metal hydride can be easily recovered and reinstalled, air pollution caused by scattering of metal hydride can be prevented, and expansion and contraction during hydrogen absorption and devolatilization of metal can be prevented. This also prevents the metal holding unit from being damaged due to excessive stress.
第、１図は本発明の実施例を示す縦断面図、第２図は第
１図の■−■線による横断面図である。1 is a longitudinal cross-sectional view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1.
Claims (2)
させて水素を吸蔵させ、必要に応じて水素を脱蔵させ、
該金属が水素を吸・脱蔵する際に発生する熱を熱交換流
体によシ回収する熱交換器の構造において、水素吸・脱
蔵時の水素ガスの圧力に耐える耐圧殻と、その内部に着
脱可能に設けられた金属保持ユニットと、該金属保持ユ
ニットと上記耐圧殻との間の空間に充填された充填材と
を有し、上記耐圧殻には水素ガス供給、回収用配管が接
続され、上記金属保持ユニットは適度の通気性と弾性と
を有する材料で壁体を形成された容器と、その内部に配
設された熱交換流体用管と、余裕空間を残すことなく充
填された金属水鷹跪４１１ｔ！、子とを有し、上記充填
材は空隙率が小さくかつ適度の断熱性を有することを特
徴とする熱交換器の構造。(1) Holding a metal hydride, bringing hydrogen gas into contact with the metal to absorb hydrogen, and devolatilizing hydrogen as necessary;
In the structure of a heat exchanger that uses a heat exchange fluid to recover the heat generated when the metal absorbs and devolatilizes hydrogen, it includes a pressure shell that can withstand the pressure of hydrogen gas during hydrogen absorption and devolatilization, and a pressure shell inside the shell. It has a metal holding unit that is removably attached to the metal holding unit, and a filler that is filled in the space between the metal holding unit and the pressure shell, and the pressure shell is connected to hydrogen gas supply and recovery piping. The metal holding unit includes a container whose walls are made of a material with appropriate air permeability and elasticity, a heat exchange fluid pipe arranged inside the container, and the container is filled without leaving any free space. Metal water hawk kneeling 411t! , and a heat exchanger structure, characterized in that the filler has a small porosity and has an appropriate heat insulating property.
度の通気性、断熱性及び体積弾性を有する断熱材を設け
たことを特徴とする特許請求の範囲第１項に記載の熱交
換器の構造。(2) The heat exchanger according to claim 1, characterized in that a heat insulating material having appropriate air permeability, heat insulation properties, and bulk elasticity is provided on the inner surface of the breathable wall body of the metal holding unit. Structure of the vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12536081A JPS5826994A (en) | 1981-08-12 | 1981-08-12 | Structure of heat exchanger utilizing metal hydride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12536081A JPS5826994A (en) | 1981-08-12 | 1981-08-12 | Structure of heat exchanger utilizing metal hydride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5826994A true JPS5826994A (en) | 1983-02-17 |
Family
ID=14908204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12536081A Pending JPS5826994A (en) | 1981-08-12 | 1981-08-12 | Structure of heat exchanger utilizing metal hydride |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5826994A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0652975U (en) * | 1992-12-19 | 1994-07-19 | 太平商工株式会社 | Cleaning equipment |
| US5862855A (en) * | 1996-01-04 | 1999-01-26 | Balk; Sheldon | Hydride bed and heat pump |
-
1981
- 1981-08-12 JP JP12536081A patent/JPS5826994A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0652975U (en) * | 1992-12-19 | 1994-07-19 | 太平商工株式会社 | Cleaning equipment |
| US5862855A (en) * | 1996-01-04 | 1999-01-26 | Balk; Sheldon | Hydride bed and heat pump |
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