JPH0395366A - Heat-utilizing device - Google Patents

Heat-utilizing device

Info

Publication number
JPH0395366A
JPH0395366A JP22993789A JP22993789A JPH0395366A JP H0395366 A JPH0395366 A JP H0395366A JP 22993789 A JP22993789 A JP 22993789A JP 22993789 A JP22993789 A JP 22993789A JP H0395366 A JPH0395366 A JP H0395366A
Authority
JP
Japan
Prior art keywords
heat
hydrogen
pressure
alloy
hydrogen storage
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.)
Granted
Application number
JP22993789A
Other languages
Japanese (ja)
Other versions
JP2647972B2 (en
Inventor
Kenji Nasako
名迫 賢二
Takahiro Yonezaki
米崎 孝広
Akio Furukawa
明男 古川
Sanehiro Furukawa
古川 修弘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP22993789A priority Critical patent/JP2647972B2/en
Publication of JPH0395366A publication Critical patent/JPH0395366A/en
Application granted granted Critical
Publication of JP2647972B2 publication Critical patent/JP2647972B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To contrive practical use of a heat-utilizing device employing a hydrogen storage alloy, namely, contrive an easier operation control and a simpler device construction, by detecting the pressure of hydrogen gas in a reaction tank, and selectively making or breaking a heating medium circuit. CONSTITUTION:A high-temperature heat exchanger 2 is supplied with cooling air 5, and is brought to a normal temperature of about 25 deg.C. With an ON-OFF valve 17 opened, hydrogen gas is transferred from the hydrogen storage alloy MH1 packed in a heat exchanger 1 into a metallic alloy for hydrogen storage MH2 packed in a heat exchanger 2, whereby the alloy MH1 is gradually cooled through an endothermic reaction to below an operating pressure of 8-9atm for a hydrogen piping 18. When directional control valves 7, 8 and a cooling air fan 9 are so set that they are changed over at a pressure of not more than 0.5atm, the coldness of the alloy MH1 is supplied to a heat exchanger 20 of a box cooler 3. When the temperature of the alloy MH1 is raised and the hydrogen pressure is raised to or above 0.5atm, the valves 7 and 8 are changed over, and the fan 9 is stopped, whereby the supply of the coldness for refrigeration is stopped.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明は、水素吸蔵合含を用いた熱利用装置に関し、よ
り詳細には、水素吸蔵合令の水素の吸収、枚出に伴う発
熱、吸熱を利用したヒードボンプ装置、又は冷凍装置に
関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field The present invention relates to a heat utilization device using a hydrogen storage system, and more specifically, to a heat utilization device that uses a hydrogen storage system, and more specifically, to reduce the amount of heat generated due to the absorption and extraction of hydrogen by the hydrogen storage system. , relates to a heat pump device or a refrigeration device that utilizes heat absorption.

(口)従来の技術 水素吸蔵合金を用いた熱利用技術については、既に比較
的温度レベルの低い熱源から、熱エネルギーを汲み上げ
て、高温の熱として利用するヒートボンブ技術、もしく
は熱エネルギーから直接冷熱を取り出す冷熱発生技術等
が提案、開発されている(特公昭38−19933号、
特公昭38−19936号 また、冷熱発生技術の応用として自動車用の冷房装置(
特公昭62−41138号)、及び冷凍車(特開昭6 
2 − 49 1 6 5号)が提案されている。しか
し、水素吸蔵合金を用いたヒートボンプ又は、冷熱発生
装置は、圧縮機を用いた従来の電動式ヒートボンプ及び
冷熱発生装置に比べて5構造が極めて複雑であり、また
運転に際しても高度な制9II技術を必要とする欠点が
あった。より具体的には、従来の水素吸蔵合金を用いた
熱利用装置の運転では、少なくとも4個の水素吸蔵合金
充填容器を用い、更に温度レベルの違う熱媒を交互に切
り替えて運転する必要があるため、少なくとも10個以
上の切替バルブを必要としていた。これらのバルブは、
予め設定したサイクル時間により、順次切替えが必要で
あり、高度なシーケンス制御もしくは温度制御が不可欠
であった。
(Example) Conventional technology Heat utilization technology using hydrogen storage alloys includes heat bomb technology, which pumps up thermal energy from a heat source with a relatively low temperature level and uses it as high-temperature heat, or heat bomb technology, which directly generates cold energy from thermal energy. Cold heat generation technology to extract cold heat has been proposed and developed (Special Publication No. 38-19933,
Special Publication No. 38-19936 Also, as an application of cold heat generation technology, air conditioning equipment for automobiles (
Special Publication No. 62-41138), and refrigerated vehicle (Japanese Patent Publication No.
2-49 16 5) has been proposed. However, heat pumps or cold heat generators using hydrogen storage alloys have extremely complex structures compared to conventional electric heat pumps and cold heat generators using compressors, and they also require advanced control technology during operation. It had the disadvantage of requiring More specifically, in the operation of conventional heat utilization equipment using hydrogen storage alloys, it is necessary to use at least four hydrogen storage alloy filled containers and to alternately switch between heating mediums with different temperature levels. Therefore, at least 10 switching valves were required. These valves are
Sequential switching is required according to a preset cycle time, and advanced sequence control or temperature control is essential.

一方、水素吸蔵合金を用いた熱利用装置を実用化するた
めには、上記の複雑な構或及び制御技術は、逆に信頼性
の面から問題があり、特に自動車及び携帯用の冷凍庫等
の熱利用装置では、装置購戊の簡略化、制御の簡略化が
大きな課題であった。
On the other hand, in order to put into practical use a heat utilization device using a hydrogen storage alloy, the above-mentioned complicated structure and control technology have problems in terms of reliability, especially in automobiles and portable freezers. With regard to heat utilization equipment, simplification of equipment purchasing and control have been major issues.

(ハ)発明が解決しようとする課題 本発明は、上記事情に鑑み、水素吸蔵合金の熱利用装置
の実用化に即し運転制御法の簡便化及び装置購戊の簡便
化を図ることを目的とする。
(c) Problems to be Solved by the Invention In view of the above circumstances, the present invention aims to simplify the operation control method and the equipment purchase in line with the practical application of heat utilization equipment for hydrogen storage alloys. shall be.

(二)課題を解決するための手段 本発明では、水素吸蔵合金が充填された一対の反応漕間
で水素ガスを交換し、熱媒回路を介して反応槽から冷熱
あるいは温熱を取り出す熱利用装置において、反応槽内
の水素の圧力を検出して熟媒回路の連通、遮断を切り換
えている。
(2) Means for Solving the Problems The present invention provides a heat utilization device that exchanges hydrogen gas between a pair of reaction vessels filled with a hydrogen storage alloy and extracts cold or warm heat from the reaction vessels via a heat medium circuit. In this process, the pressure of hydrogen in the reaction tank is detected to switch the ripening medium circuit between opening and closing.

(ホ)作用 駆動熱源及び冷却源の付与に連動して熱媒回路の連通、
遮断の制御が行なわれる。
(e) Communication of the heat medium circuit in conjunction with the application of the driving heat source and cooling source;
Shutdown control is performed.

(へ)実施例 本発明の1実施例を図面を参照して説明する。(f) Example An embodiment of the present invention will be described with reference to the drawings.

第1図は本発明を水素吸蔵合金を利用する車載用ポ7ク
スクーラーに適用したものであり、(1)は水素吸蔵罰
金M H ,が充填された反応槽を有した熟交換器、(
2)は平衡分解圧が異なる水素吸蔵合金M I{ +が
充填された反応槽を有した熱交換器、(3)はボックス
クーラーである。エンジン徘カ゛ス(4)は切替弁(6
)により、水素吸蔵合f;.MH2が充填されている熱
交換器(2)に供給できる。
Figure 1 shows the application of the present invention to an on-vehicle cooler that uses a hydrogen storage alloy.
2) is a heat exchanger having a reaction tank filled with hydrogen storage alloys M I{ + having different equilibrium decomposition pressures, and (3) is a box cooler. The engine wandering gas (4) is connected to the switching valve (6
), the hydrogen storage combination f;. It can be fed to a heat exchanger (2) filled with MH2.

また、冷却源と1,ての空気(5)は、切替弁(6)゛
配管(12)、切替弁(7)を介して、水素吸蔵合金N
1■l1が充填されている熱交換if!B(1)、及び
切替弁(6)’.切替弁(6)、配管(10)を介して
水素吸蔵合金MH.が充填されている熱交換器(2)に
供給できる。更に、熟交換器(2)は冷風ファン(9)
により、切替弁(7)、(8)を介してボンクスクーラ
ー(3)の熱交換部分(20)と熱交換可能な構造とな
っている。また、切替弁(7)、(8)は、水素吸鷹合
令MH1と水素吸臓合金M H .を開閉弁(l7)を
介して連絡されている水素ガス配管(18)の水素吸俺
合金M H l ftliに、水素圧力を1云達可能な
細管(19)で連結され、水素ガス配管(18)内の圧
力により、切替弁が作動する。また、細管(19)jよ
冷風ファン(9)に連絡され、圧力スイッチ等により冷
虱ファンの発停を制御できる。
In addition, the cooling source and the air (5) are supplied via the switching valve (6), the piping (12), and the switching valve (7) to the hydrogen storage alloy N.
1■l1 is filled with heat exchange if! B (1), and the switching valve (6)'. The hydrogen storage alloy MH. can be supplied to the heat exchanger (2) filled with Furthermore, the mature exchanger (2) is equipped with a cold air fan (9).
This structure allows heat exchange with the heat exchange portion (20) of the bomb cooler (3) via the switching valves (7) and (8). In addition, the switching valves (7) and (8) are hydrogen absorbing alloy MH1 and hydrogen absorbing alloy MH. The hydrogen gas pipe (18) is connected to the hydrogen suction valve alloy M H l ftli of the hydrogen gas pipe (18), which is connected via the on-off valve (17), by a thin tube (19) that can deliver hydrogen pressure of 1 level. The pressure inside 18) activates the switching valve. Further, the thin tube (19)j is connected to the cooling fan (9), and starting and stopping of the cooling fan can be controlled by a pressure switch or the like.

第2図は、第1図の水素口及蔵合金が充填されている熱
交換器(1)もしくは(2)の内部構造の一実施例を示
し、(30)は、熱煤体(排ガス、空気、冷風)の入口
、(31)は熱媒体の出口である。本溝造jよ、シェル
アンドチューブ型の熱交換器を応用したもので、M H
 ,もしくはM H rの水素吸蔵合金(32)は耐圧
容器(33)内に充填され、フィルター(34)を介し
て水素配管(35)と按続されている。また、耐圧容5
(33)の外周には、熱交換能力を増加させるために熱
伝導性の高いアルミ、銅等の材質を用いたフィン(37
)が挿着され、熱媒体入口(30)より供給される熟媒
と迅速に熟交換できる構造となりている。ここて−、熟
媒体は、入口(30)上り熟交換器(1〉内によダ入さ
れ、邪魔板(36)により、よどみなく水素吸蔵合金(
32)と熱交換された後、出口(31)より排出される
FIG. 2 shows an example of the internal structure of the heat exchanger (1) or (2) filled with the hydrogen storage alloy shown in FIG. (31) is an inlet for air, cold air) and an outlet for a heat medium. Mr. Honzozo, it is an application of the shell and tube type heat exchanger, M H
, or M H r hydrogen storage alloy (32) is filled in a pressure container (33) and connected to a hydrogen pipe (35) via a filter (34). In addition, pressure capacity 5
The outer periphery of the fin (37) is made of highly thermally conductive materials such as aluminum and copper to increase heat exchange capacity.
) is inserted, and has a structure that allows quick ripening exchange with the ripening medium supplied from the heat medium inlet (30). Here, the ripening medium is introduced into the ripening exchanger (1) upstream from the inlet (30), and is prevented from stagnation by the baffle plate (36).
After exchanging heat with 32), it is discharged from the outlet (31).

第3図は第1図の水素配管(18)の水素圧力によ)駆
動する切替弁(7)、(8)の構造に関する池の一実施
例を示したものであり、第4図は、同様に水素圧力によ
り駆動する切替弁(7)、(8)のFfR造に関する池
の一実施例を示したものである。第3図の切替バルブを
第1図の切替弁(7)に適用した場合、熱媒洪給口(4
0)は、熱交換器(1)に接続され,熱媒出口(41)
、(42)は、それぞれ配管(16)、(12)に接続
される。また、切替弁(8)に適用した場合、熱媒供給
口(40)は、熱交換器(1)に接続され、熱媒出口(
41)、(42)は、それぞれ配管(14)、(13)
に接続される。ここで、第1図の水素配管(18)と、
水素ガスが連通可能に接続された細管(19)は、第3
図に示すベローズ(43)部と水素ガスが連通可能に接
続され、ベローズ部(43)の先端に接続された切替弁
(44)とともに、水素ガスが低圧の場1は縮小して短
かくなり、高圧の場合は膨張して長くなる。同様に第4
図の切替バルブを第1図の切替弁(7)に適用した場合
、熱媒供給口(50)は、熱交換器(1)に接続され、
熱媒出口(51)、〈52)はそれぞれ配管(l2)、
(16)に接続される。また切替弁(8)に適用した場
合、熱媒供給口(50)は、熱交換!(1 )に接続さ
れ、熱媒出口(51)、(52)はそれぞれ(13)、
(14)に接続される。ここで、第1図の水素配管(1
8)と水素ガスが連通可能に接続された細管(19)は
第4図に示すベローズ部(53)と水素ガスが連通可能
に後続され、ベローズ部(53)の先端に接続された熱
媒経路切替用ダンパー(54)とともに、水素ガスが低
圧の場合は、縮小して短かくなり、熱媒経路が熱媒供給
口(50〉と熱媒出口(52)に連絡され、また水素ガ
スが高圧の場合は、膨張して長くなり、熱媒経路が熱媒
供給口(50)と熱媒出口(51)に連絡される。
FIG. 3 shows an embodiment of the structure of the switching valves (7) and (8) driven by the hydrogen pressure of the hydrogen pipe (18) in FIG. 1, and FIG. Similarly, an example of a pond related to FfR construction of switching valves (7) and (8) driven by hydrogen pressure is shown. When the switching valve in Fig. 3 is applied to the switching valve (7) in Fig. 1, the heat medium inlet (4
0) is connected to the heat exchanger (1), and the heat medium outlet (41)
, (42) are connected to the pipes (16) and (12), respectively. Furthermore, when applied to the switching valve (8), the heat medium supply port (40) is connected to the heat exchanger (1), and the heat medium outlet (
41) and (42) are piping (14) and (13), respectively.
connected to. Here, the hydrogen pipe (18) in Fig. 1,
The thin tube (19) connected to allow hydrogen gas to communicate is the third tube.
The bellows (43) shown in the figure is connected to allow hydrogen gas to communicate, and together with the switching valve (44) connected to the tip of the bellows (43), field 1 where the hydrogen gas is at low pressure is reduced and shortened. , in the case of high pressure, it expands and becomes longer. Similarly, the fourth
When the switching valve in the figure is applied to the switching valve (7) in FIG. 1, the heat medium supply port (50) is connected to the heat exchanger (1),
The heat medium outlet (51) and <52) are each connected to a pipe (l2),
(16). In addition, when applied to the switching valve (8), the heat medium supply port (50) can be used for heat exchange! (1), and the heat medium outlets (51) and (52) are connected to (13), respectively.
(14). Here, the hydrogen pipe (1
8) is connected to allow hydrogen gas to communicate with the bellows part (53) shown in FIG. Together with the path switching damper (54), when the hydrogen gas is at low pressure, it is reduced and shortened, and the heating medium path is connected to the heating medium supply port (50> and the heating medium outlet (52)), and the hydrogen gas is In the case of high pressure, it expands and becomes longer, and the heat medium path is connected to the heat medium supply port (50) and the heat medium outlet (51).

次に第1図の車載用ボックスクーラーの作動を、第5図
に示す運転サイクル図を参照して説明する。第5図は水
素吸蔵合含MH.、M H +の温度、平衡分解圧線図
であ}冫、水素吸蔵合金では一般に絶対温度の逆数と水
素圧の対数値の関係は直線となる。ここで、熱源温度T
8と水素吸蔵合金Ni H 1の交点を(A)、冷却水
温度TMと水素吸蔵合金MH!の交点を(B)、冷却水
温度T,と水素吸蔵詮全M H .どの交点を(D)、
冷凍熱出熱温度TLと水f:吸蔵合金MH.との交点を
(C)とする。さて、第1図において熱交換器(1)、
(2)にそれぞれ充填されている水素+1&蔵合金MH
1、MH.で水素再生過程が行われているとすると、切
替バルブ6は制御器(タイマー)23によI冫、4−6
→10の経路が連結され、バルブ(7)は、作動圧が8
〜10atmの高圧であるためl2→7→1の経路が連
絡されている。従って、エンジン排ガス(4)が、切替
バルブ(6〉、配管(10)を介して熱交換器(2)(
水素吸蔵合金M H . )に供給され(第5図上の(
A)、冷却源(5)は配管(12)、切替バルブ(7)
を介して熱交換!(7)(水素吸i合金MH)に供給さ
れる(第5図上の(B)).また水素ガスの開閉弁(1
7)は開状態となり、水素ガスは、水素吸蔵合金MH!
より水素吸蔵合金M H +に移動する。なお、この状
態の水素配管(18)は、8〜9attnのライン圧で
作動するため、切替バルブ(8)は5 8〜9 atm
の高圧により、熱交換器(1)の排出熱媒(空気)は、
配管(13)に連結され、系外に放出される。次に第3
図の(A)から(B)への水素移動が終了した時点(こ
の設定は、制御器23を用いた簡単な時間制御等により
行われる)で、切替バルブ(6)、(6)゜が切り替わ
り、同時に水素ガス開閉弁(17)が閉じる。
Next, the operation of the in-vehicle box cooler shown in FIG. 1 will be explained with reference to the operating cycle diagram shown in FIG. 5. Figure 5 shows MH containing hydrogen storage. , M H + temperature and equilibrium decomposition pressure diagram} In a hydrogen storage alloy, the relationship between the reciprocal of absolute temperature and the logarithm of hydrogen pressure is generally a straight line. Here, the heat source temperature T
8 and the hydrogen storage alloy Ni H 1 (A), the cooling water temperature TM and the hydrogen storage alloy MH! (B), the cooling water temperature T, and the hydrogen absorption total M H . Which intersection point (D),
Refrigeration heat output temperature TL and water f: storage alloy MH. Let the intersection point be (C). Now, in Fig. 1, the heat exchanger (1),
(2) is filled with hydrogen +1 & storage alloy MH
1, MH. If the hydrogen regeneration process is being performed at 4-6, the switching valve 6 is controlled by the controller (timer)
→ 10 paths are connected, and the valve (7) has an operating pressure of 8
Since the pressure is high at ~10 atm, the path 12→7→1 is connected. Therefore, the engine exhaust gas (4) passes through the switching valve (6> and the piping (10) to the heat exchanger (2) (
Hydrogen storage alloy MH. ) is supplied to ((
A), cooling source (5) is pipe (12), switching valve (7)
Heat exchange through! (7) (Hydrogen-absorbing i-alloy MH) ((B) in Figure 5). In addition, the hydrogen gas on-off valve (1
7) is in the open state, and hydrogen gas flows through the hydrogen storage alloy MH!
It moves to the hydrogen storage alloy M H +. Note that the hydrogen pipe (18) in this state operates at a line pressure of 8 to 9 atm, so the switching valve (8) operates at a line pressure of 5 to 9 atm.
Due to the high pressure of the heat exchanger (1), the exhaust heat medium (air)
It is connected to the pipe (13) and discharged outside the system. Then the third
At the point when the hydrogen transfer from (A) to (B) in the figure is completed (this setting is performed by simple time control using the controller 23), the switching valves (6) and (6)° are turned off. At the same time, the hydrogen gas on-off valve (17) closes.

この状態では、高温状態であった熱交換器(2)(水素
吸蔵合金?VI H .)は、冷却i!i(5)より切
替弁(6)“、切替弁(6)、配管(10)を介して、
冷却用空気が供給され、約25℃の常温状態になる(第
5図の(D))。熱交換器(1)は、熱媒供給が停止状
態となる。
In this state, the heat exchanger (2) (hydrogen storage alloy? VIH.), which was in a high temperature state, is cooled i! From i(5) through the switching valve (6), the switching valve (6), and the piping (10),
Cooling air is supplied, and the room temperature becomes approximately 25° C. ((D) in FIG. 5). Heat medium supply to the heat exchanger (1) is stopped.

その後、開閉バルブ(17)を開放すると、水素ガスは
、熱交換器1内に充填されている水素lI&蔵合金MH
,よワ、熱交換器(2)内に充填されている水素吸蔵合
金MH.に移動し、水素吸蔵合金MH.は吸熱反応によ
り次第に冷却され、第5図の(B)から(C)に移動す
る。
Thereafter, when the on-off valve (17) is opened, the hydrogen gas filled in the heat exchanger 1 is
, Yowa, hydrogen storage alloy MH. filled in the heat exchanger (2). The hydrogen storage alloy MH. is gradually cooled by an endothermic reaction and moves from (B) to (C) in FIG.

この状態での水素配管(l8)の水素圧力は(B)の作
動圧8〜9atmより次第に低下し約0 . 5 aL
nに低下する。また、作動圧が0.5at’mになった
状態では、水素吸蔵合金MH.は充分に冷却され、その
温度は−20℃以下となる。ここで、水素配管(18)
に連結され、そのライン圧により切替わる切替バルブ(
7)、(8)及びライン圧により作動する冷風ファン(
9)を、Q . 5 atmのライン圧に到達した時点
で切替わるように設定すると、水素吸蔵合金M H .
の温度が−20”C以下に到達した時点で熱交換唇(1
)は、ボックスクーラー(3)の熱交換部分20と閉回
路を組み、冷風ファン(9)により、水素吸蔵合* M
 H +の冷熱がボックスクーラー(3)の熱交換器(
20)に供給され、ボックスクーラーを−20℃以下に
保持できるようになる。なお、この状態では、第5図の
(C)から(D)に水素移動が進行する(冷凍熱発生過
程)。次に(C)から(D)に水素移動が終了した時点
(この設定も、制御! (23)を用いた簡単な時間制
御等により行われる)で、切替バルブ(6)、(6)゜
を切り替え、開閉弁(17)を閉じ、エンジン排ガスが
然交換器(2)に供給される。一方、熟交換器(1)は
、水X吸蔵合金MH,の温度が、顕熟のため十分低いた
め、ボックスクーラー(3)l\の冷凍熱供給を引き続
いて行わt′L(切替バルブ7が16→7−1の経路を
形或)水素吸蔵合金MH1の温度が上昇し、水素圧力が
0 . 5 atm以上になった時点で、切替えバルブ
、(7)、(8)が切り替わり、冷風ファンが停止して
、冷凍熱供給が停止する。この状態では、熱交換器(1
)には、冷却源(5)から空気が供給され、熟交換器(
2)は、引き続いてエンジン排ガスから熟供給が行われ
、開閉バルブ(l7)が開状聾となって再生過程が行わ
れる。以上説明した作動が連続してサイクルを繰り返し
て行われる。
In this state, the hydrogen pressure in the hydrogen pipe (18) gradually decreases from the working pressure of (B), 8 to 9 atm, to about 0. 5aL
n. Furthermore, when the working pressure is 0.5 at'm, the hydrogen storage alloy MH. is sufficiently cooled and its temperature is -20°C or lower. Here, hydrogen piping (18)
A switching valve (
7), (8) and a cold air fan operated by line pressure (
9), Q. If it is set to switch when the line pressure reaches 5 atm, the hydrogen storage alloy M H .
When the temperature of the heat exchanger lip (1
) forms a closed circuit with the heat exchange part 20 of the box cooler (3), and uses the cold air fan (9) to absorb hydrogen * M
The cold energy of H+ is transferred to the box cooler (3) heat exchanger (
20), making it possible to maintain the box cooler at -20°C or lower. In this state, hydrogen transfer progresses from (C) to (D) in FIG. 5 (refrigeration heat generation process). Next, at the point when the hydrogen transfer from (C) to (D) is completed (this setting is also done by simple time control using Control! (23), etc.), the switching valves (6), (6)゜is switched, the on-off valve (17) is closed, and engine exhaust gas is supplied to the gas exchanger (2). On the other hand, in the ripening exchanger (1), since the temperature of the water forms a path of 16→7-1) The temperature of the hydrogen storage alloy MH1 increases and the hydrogen pressure decreases to 0. When the temperature exceeds 5 atm, the switching valves (7) and (8) are switched, the cold air fan is stopped, and the freezing heat supply is stopped. In this state, the heat exchanger (1
) is supplied with air from the cooling source (5), and the mature exchanger (
In 2), the exhaust gas from the engine is continuously supplied, and the on-off valve (17) is in the open state to perform the regeneration process. The operations described above are performed in a continuous cycle.

本発明のボックスクーラーの冷凍能力は次の通りである
。即ち、MH.とじて、希土類−Nl系き金、M H 
.とじて組戒の異なる希t類一Ni系合金をそれぞれl
 kgを用い、100〜150゜Cのエンジン排ガス、
25〜35℃の空気を用いた場合、冷凍出熱は−25℃
となり、内容積30lのボックスクーラーを、F級冷凍
域(−20℃以F)である−20℃に保持することがで
きる(冷凍負荷5 0 kca!/m)。なお、本発明
の冷凍機では水素再生過程が行われている場合、冷凍熱
供給が行われないため、ボンクスクーラー(3)内には
、約33%濃度のエチレングリコール水溶液等の凝固点
が−20’C程度の潜熱蓄熱材(21)を充填している
。そのため冷凍熱の供給がない場合でも、冷凍庫内(2
2)は常に−20℃に保持できる。
The refrigerating capacity of the box cooler of the present invention is as follows. That is, MH. As a result, rare earth-Nl based gold, M H
.. Rare class 1 Ni-based alloys with different combinations are each l
kg, engine exhaust gas at 100-150°C,
When using air at 25-35℃, freezing fever is -25℃
Therefore, a box cooler with an internal volume of 30 liters can be maintained at -20°C, which is the F-class freezing range (-20°C or higher) (refrigeration load 50 kca!/m). In addition, in the refrigerator of the present invention, when the hydrogen regeneration process is performed, freezing heat is not supplied, so the freezing point of the ethylene glycol aqueous solution with a concentration of about 33% is - It is filled with a latent heat storage material (21) of about 20'C. Therefore, even if there is no supply of freezing heat, the inside of the freezer (2
2) can always be maintained at -20°C.

以上説明したように、本発明実施例のボックスクーラー
は、簡単な制御により運転でき、持に冷庫熱を回収する
熱媒回路は、水素吸蔵合金の特性により自動制御される
ため、装置全体も極めて簡素化でき、高信頼性の装置が
構戊できる。また、上記の水素吸蔵合金の特性を利用し
た自動制御は、水素吸蔵合金を用いたヒー1・ポンプ等
の熱利用システム全般に適用できるのは言うまでもない
As explained above, the box cooler according to the embodiment of the present invention can be operated with simple control, and the heat transfer circuit that recovers the refrigerator heat is automatically controlled by the characteristics of the hydrogen storage alloy, so the overall system is extremely efficient. It is possible to construct a simple and highly reliable device. Furthermore, it goes without saying that the automatic control using the characteristics of the hydrogen storage alloy described above can be applied to general heat utilization systems such as heat pumps and the like that use the hydrogen storage alloy.

クト)発明の効果 以上述べた如く、本発明熱利用装置は反応槽内の水素の
圧力を検出して熱媒回路の連通、遮断を切り換えている
ので、駆動用熱源及び冷却源の付与をするだけで、複雑
な制御をすることなしに、熟利用を行なうことが出来る
Ht) Effects of the Invention As stated above, the heat utilization device of the present invention detects the pressure of hydrogen in the reaction tank and switches the heat medium circuit between opening and closing, so it can provide a driving heat source and a cooling source. This allows for efficient use without complicated control.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例であるボックスクーラのブロ
ンク図、第2図は熟交換盛の断面模式図,第3図、第4
図は圧力駆動経路切替弁の断面閃、第5図は冷凍熱発生
原理を示す温度一圧力特性図である。 (1 )(2 )・・・熟交換器、(3)・・・ボック
スクーラ、(ts)(6)’ ・・・切替弁、(7)<
8)・・・圧力駆動切替弁、(9)・・・冷風ファン、
(17)・・・開閉弁、(18)・・・水素配管、(1
9)・・・細管、(21)・・・潜熱蓄熱材、(22)
・・・冷凍庫、(23)・・・制御器、(43)(53
)・・・ベローズ部、(44)・・・切替弁。
Fig. 1 is a bronch diagram of a box cooler that is an embodiment of the present invention, Fig. 2 is a cross-sectional schematic diagram of a ripening stack, Figs. 3 and 4.
The figure is a cross-sectional view of the pressure drive path switching valve, and FIG. 5 is a temperature-pressure characteristic diagram showing the principle of refrigeration heat generation. (1) (2)...Massage exchanger, (3)...Box cooler, (ts) (6)'...Switching valve, (7)<
8)...Pressure driven switching valve, (9)...Cold air fan,
(17)...Opening/closing valve, (18)...Hydrogen piping, (1
9) Thin tube, (21) Latent heat storage material, (22)
... Freezer, (23) ... Controller, (43) (53
)...Bellows part, (44)...Switching valve.

Claims (1)

【特許請求の範囲】 1)水素吸蔵合金が充填された一対の反応槽間で水素ガ
スを交換し、熱媒回路を介して反応槽から冷熱あるいは
温熱を取り出す熱利用装置において、反応槽内の水素の
圧力を検出して熱媒回路の連通、遮断を切り換えること
を特徴とした熱利用装置。 2)駆動用熱源としてエンジン排ガスを用いるとともに
冷却源として空気を用いることを特徴とした特許請求の
範囲第1項記載の熱利用装置。
[Scope of Claims] 1) A heat utilization device that exchanges hydrogen gas between a pair of reaction vessels filled with a hydrogen storage alloy and extracts cold or hot heat from the reaction vessels via a heat transfer circuit. A heat utilization device that detects the pressure of hydrogen and switches the heat medium circuit between opening and closing. 2) The heat utilization device according to claim 1, characterized in that engine exhaust gas is used as a driving heat source and air is used as a cooling source.
JP22993789A 1989-09-05 1989-09-05 Heat utilization equipment Expired - Fee Related JP2647972B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22993789A JP2647972B2 (en) 1989-09-05 1989-09-05 Heat utilization equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22993789A JP2647972B2 (en) 1989-09-05 1989-09-05 Heat utilization equipment

Publications (2)

Publication Number Publication Date
JPH0395366A true JPH0395366A (en) 1991-04-19
JP2647972B2 JP2647972B2 (en) 1997-08-27

Family

ID=16900062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22993789A Expired - Fee Related JP2647972B2 (en) 1989-09-05 1989-09-05 Heat utilization equipment

Country Status (1)

Country Link
JP (1) JP2647972B2 (en)

Also Published As

Publication number Publication date
JP2647972B2 (en) 1997-08-27

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