JPH07113592A - Heat accumulation device - Google Patents
Heat accumulation deviceInfo
- Publication number
- JPH07113592A JPH07113592A JP5261154A JP26115493A JPH07113592A JP H07113592 A JPH07113592 A JP H07113592A JP 5261154 A JP5261154 A JP 5261154A JP 26115493 A JP26115493 A JP 26115493A JP H07113592 A JPH07113592 A JP H07113592A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat storage
- heat accumulating
- deterioration
- tank
- 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
-
- 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
- Y02E60/14—Thermal energy storage
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、蓄熱槽内に納めた高分
子材料の蓄熱材とこの蓄熱材との間で熱交換を行う液相
の熱媒体の劣化を有利な形で防止できるようにした蓄熱
装置と劣化防止方法に関する。INDUSTRIAL APPLICABILITY The present invention can advantageously prevent deterioration of a liquid-phase heat medium for exchanging heat between a polymer heat storage material stored in a heat storage tank and the heat storage material. Storage device and deterioration prevention method.
【０００２】[0002]
【従来の技術】蓄熱装置は、例えば図２に示すように、
蓄熱材を納めた蓄熱槽１と、貯えようとする熱を油等の
熱媒体に吸収させる熱交換槽２と、熱吸収後の熱媒体を
蓄熱槽１に送り込むポンプ３と、蓄熱槽１に貯えた熱を
必要時に放出する放熱器４と、これ等の間を結ぶ熱媒体
循環路５を具備して構成される。2. Description of the Related Art A heat storage device, for example, as shown in FIG.
In the heat storage tank 1, a heat storage tank 1 containing a heat storage material, a heat exchange tank 2 for absorbing the heat to be stored in a heat medium such as oil, a pump 3 for sending the heat medium after the heat absorption to the heat storage tank 1, and the heat storage tank 1. It is configured by including a radiator 4 that releases the stored heat when necessary, and a heat medium circulation path 5 that connects these radiators.
【０００３】この蓄熱装置に用いる蓄熱材としては、形
成安定化処理した高密度ポリエチレンなどの高分子材料
が知られており、また、循環路に流す熱媒体としては、
エチレングリコール或いはシリコン系油等が利用されて
いる。As a heat storage material used in this heat storage device, a polymeric material such as high density polyethylene subjected to a formation stabilization treatment is known, and as a heat medium to be flown in a circulation path,
Ethylene glycol or silicone oil is used.
【０００４】このような蓄熱材や熱媒体は、蓄熱装置の
運転による酸化、劣化及び経時劣化が避けられない。こ
の劣化により装置内に分解生成物が発生して溜まる。[0004] Such a heat storage material or heat medium is inevitably oxidized, deteriorated and deteriorated with time due to the operation of the heat storage device. Due to this deterioration, decomposition products are generated and accumulated in the device.
【０００５】そこで、劣化防止策として、例えば特開昭
５９−１３４４９８号公報に示されるように、蓄熱材と
熱交換を良くする熱媒体をカプセル内に封入し、カプセ
ル内を不活性ガス雰囲気にしたり、真空雰囲気にした
り、熱媒体中に劣化防止剤を混合すると云ったことが考
えられている。Therefore, as a measure for preventing deterioration, as shown in, for example, Japanese Patent Laid-Open No. 134498/1984, a heat medium that improves heat exchange with a heat storage material is enclosed in a capsule, and the inside of the capsule is filled with an inert gas atmosphere. It is considered that the heat treatment is performed in a vacuum atmosphere or a heating medium is mixed with a deterioration inhibitor.
【０００６】[0006]
【発明が解決しようとする課題】カプセルを用いて劣化
そのものを防止する方法は、蓄熱材と熱を運搬する熱媒
体との直接の熱交換ができないので蓄熱効率を高め難
い。また、カプセルを必要とするので蓄熱槽１に対する
蓄熱材の充填率が低下し、装置コストも上昇する。さら
に、熱運搬用の熱媒体はカプセルに封入できないのでそ
の媒体の劣化が起こる。In the method of preventing deterioration itself by using a capsule, it is difficult to enhance heat storage efficiency because heat cannot be directly exchanged between the heat storage material and the heat carrier that conveys heat. Further, since the capsule is required, the filling rate of the heat storage material in the heat storage tank 1 is lowered, and the apparatus cost is also increased. Furthermore, since the heat carrier for heat transfer cannot be encapsulated, deterioration of the media occurs.
【０００７】熱媒体に劣化防止剤を混合する方法は、充
分な劣化防止効果を期待できず、従って、どうしても劣
化が起こり、この劣化によって生じる分解生成物が熱媒
体の循環路に析出して管づまり等の装置内圧変化を引き
起し、装置が運転不能になるなどのトラブルが発生す
る。The method of mixing the deterioration preventive agent with the heat medium cannot be expected to have a sufficient deterioration preventing effect, so that the deterioration is inevitable, and the decomposition products produced by this deterioration are deposited in the circulation path of the heat medium to cause the deterioration of the pipe. This may cause a change in the internal pressure of the device such as clogging, resulting in trouble such as the inoperability of the device.
【０００８】本発明の課題は、かかる不具合を無くすこ
とにある。An object of the present invention is to eliminate such a problem.
【０００９】[0009]
【課題を解決するための手段】上記の課題を解決するた
め、本発明においては、図２に示されるような蓄熱装置
に当該装置の内部を真空引きする装置と、真空引き後の
蓄熱装置内部に不活性ガスを充填する装置を付加したの
である。In order to solve the above problems, in the present invention, a heat storage device as shown in FIG. 2 is used to evacuate the inside of the device, and the inside of the heat storage device after vacuuming. A device for filling an inert gas was added to the.
【００１０】このような装置構成にしておけば、真空引
き装置で蓄熱装置の内部を真空引きして脱水分処理と前
記熱媒体中に溶存するガスの脱気処理を行い、その後、
ガス充填装置で蓄熱装置内部に不活性ガスを充填して装
置内空間を不活性雰囲気にするという本発明の方法での
劣化防止を実施することができる。With such a device configuration, the inside of the heat storage device is evacuated by the vacuum evacuation device to perform dehydration treatment and degassing treatment of the gas dissolved in the heat medium, and thereafter,
The deterioration can be prevented by the method of the present invention in which the heat storage device is filled with an inert gas by the gas filling device to make the space in the device an inert atmosphere.
【００１１】[0011]
【作用】蓄熱材及び熱媒体の劣化を引き起こす蓄熱装置
内の水分と熱媒体中の溶存ガス（主として酸素）を、本
発明で付加した装置と本発明の方法を用いて事前に除去
すれば、蓄熱材をカプセル等に封入しなくてもその劣化
を防止できる。従って、カプセル等を無くし、蓄熱材に
熱媒体を直接接触させるようにして熱交換率を高め、同
時に蓄熱材の充填率も高めることができる。If the moisture in the heat storage device causing the deterioration of the heat storage material and the heat medium and the dissolved gas (mainly oxygen) in the heat medium are removed in advance by using the device added in the present invention and the method of the present invention, Even if the heat storage material is not enclosed in a capsule or the like, its deterioration can be prevented. Therefore, it is possible to eliminate the capsule and the like and bring the heat medium into direct contact with the heat storage material to increase the heat exchange rate, and at the same time, to increase the filling rate of the heat storage material.
【００１２】また、劣化の誘発因子そのものが除去され
ているので、劣化防止の効果も高く、分解生成物に起因
した装置のトラブル等も起こり難くなる。Further, since the deterioration-inducing factor itself is removed, the effect of preventing deterioration is high, and troubles of the apparatus due to decomposition products are less likely to occur.
【００１３】[0013]
【実施例】図１に示す試験用の蓄熱装置を作成した。こ
の装置の蓄熱槽１には、融着、団塊化を無くすための形
状安定化処理を行ったポリアセタールを蓄熱材として充
填し、熱媒体６として用いたシリコン油がその蓄熱材に
直に触れて熱交換が行われるようにしてある。EXAMPLE A test heat storage device shown in FIG. 1 was prepared. The heat storage tank 1 of this apparatus was filled with polyacetal that had been subjected to shape stabilization treatment for eliminating fusion and nodularity as a heat storage material, and the silicone oil used as the heat medium 6 directly touched the heat storage material. Heat exchange is performed.
【００１４】また、熱媒体６をヒータ７で加熱して送り
出す熱交換槽２に、その槽の内部空隙部を真空引きする
真空ポンプ８と不活性ガス（ここではＮ2 ガスを用いた
がＡｒガス等の他の不活性ガスでもよい）の充填装置９
を接続してある。In addition, the heat exchange tank 2 which heats the heat medium 6 with the heater 7 and sends it out, is evacuated to a vacuum pump 8 and an inert gas (here, N 2 gas is used but Ar gas is used). Other inert gas such as gas may be used) filling device 9
Are connected.
【００１５】この試作装置を用いて以下の手順で本発明
の方法を実施した。The method of the present invention was carried out by the following procedure using this prototype device.
【００１６】先ず初めに、コックＣ１、Ｃ２を閉じた状
態でコックＣ６を開けて熱媒体流入口から熱媒体６を熱
交換槽２内に封入した。First, the cock C6 was opened with the cocks C1 and C2 closed, and the heat medium 6 was sealed in the heat exchange tank 2 from the heat medium inlet.
【００１７】次に、コックＣ６を閉じ、ヒータ７で槽内
の熱媒体６を１００℃まで加温し、これと併せてコック
Ｃ１、Ｃ３、Ｃ４を開け、真空ポンプ８で蓄熱装置内を
真空引きして装置内の残留水分及び熱媒体６中の溶存酸
素を除去した。Next, the cock C6 is closed, the heating medium 6 in the bath is heated to 100 ° C. by the heater 7, the cocks C1, C3, C4 are opened at the same time, and the vacuum pump 8 vacuums the heat storage device. The residual water in the apparatus and the dissolved oxygen in the heat medium 6 were removed by pulling.
【００１８】次いで、コックＣ４を閉じ、コックＣ５を
開けて熱交換槽２内及び装置配管内にＮ2 ガスを流し入
れ、このＮ2 ガス充填を熱交換槽２内が大気圧になるま
で行った。これにより、熱媒体６内にＮ2 ガスが溶け込
む。Next, the cock C4 is closed, the cock C5 is opened, N 2 gas is flown into the heat exchange tank 2 and the apparatus piping, and this N 2 gas filling is performed until the inside of the heat exchange tank 2 becomes atmospheric pressure. . As a result, the N 2 gas dissolves in the heat medium 6.
【００１９】そして、この後、コックＣ２を開け、ポン
プ３を駆動して蓄熱槽１、放熱器４、及び熱媒体循環路
５内に溶存ガスをＮ2 ガスに置換した熱媒体６を流入さ
せた。After that, the cock C2 is opened, the pump 3 is driven, and the heat medium 6 in which the dissolved gas is replaced with N 2 gas is caused to flow into the heat storage tank 1, the radiator 4, and the heat medium circulation path 5. It was
【００２０】以上の前処理を行って蓄熱装置を運転した
ところ、蓄熱材をカプセル等に封入していないにも拘ら
ず蓄放熱を繰り返しても蓄熱材及び熱媒体６（シリコン
油）の劣化は殆んど起こらなかった。ここでは、その劣
化を、蓄熱材が劣化して生じるホルムアルデヒドの発生
状況と装置内の内圧状況をもとにして判断した。When the heat storage device was operated after performing the above pretreatment, the heat storage material and the heat medium 6 (silicon oil) were not deteriorated even if heat storage and heat dissipation were repeated even though the heat storage material was not enclosed in a capsule or the like. Almost never happened. Here, the deterioration was judged based on the generation status of formaldehyde caused by the deterioration of the heat storage material and the internal pressure status inside the apparatus.
【００２１】劣化防止のために行う上記の手順の作業
は、熱媒体を交換したときには改めて実施する。The work of the above procedure for preventing deterioration is performed again when the heat medium is replaced.
【００２２】なお、試作装置のコックは全て手動式であ
るが、これは電磁弁であってもよい。また、使用する蓄
熱材、熱媒体も例示のものに限定されない。高分子材料
の蓄熱材と液相の熱媒体を用いる蓄熱装置であれば、本
発明の効果が発揮される。Although all the cocks of the prototype device are of manual type, they may be solenoid valves. Further, the heat storage material and the heat medium used are not limited to those illustrated. The effect of the present invention is exhibited as long as it is a heat storage device using a heat storage material of a polymer material and a heat medium in a liquid phase.
【００２３】[0023]
【発明の効果】以上説明したように、本発明の蓄熱装置
及び劣化防止方法においては、内部の真空引き装置と不
活性ガスの充填装置を付加し、内部の残留水分の除去と
液相の熱媒体中に溶存するガスの不活性ガスへの置換を
行って劣化因子を除去するようにしたので、劣化防止の
ためのカプセル等が不要になり、蓄熱材と熱媒体の直接
熱交換を行って熱交換率を高めることができる。As described above, in the heat storage device and the deterioration prevention method of the present invention, an internal vacuuming device and an inert gas filling device are added to remove the internal residual water and heat the liquid phase. Since the deterioration factor is removed by replacing the gas dissolved in the medium with an inert gas, a capsule etc. for preventing deterioration is not required, and direct heat exchange between the heat storage material and the heat medium is performed. The heat exchange rate can be increased.
【００２４】また、カプセル等を必要としないため、蓄
熱槽に対する蓄熱材の充填率を高めて装置の小型化、コ
ストダウンを図ることができる。Further, since no capsule or the like is required, it is possible to increase the filling rate of the heat storage material in the heat storage tank, thereby making the apparatus compact and reducing the cost.
【図１】試験用に試作した本発明の蓄熱装置の概要を示
す図FIG. 1 is a diagram showing an outline of a heat storage device of the present invention prototyped for a test.
【図２】従来の蓄熱装置の概要を示す図FIG. 2 is a diagram showing an outline of a conventional heat storage device.
１ 蓄熱槽 ２ 熱交換槽 ３ ポンプ ４ 放熱器 ５ 熱媒体循環路 ６ 熱媒体 ７ ヒータ ８ 真空ポンプ ９ 不活性ガス充填装置 Ｃ１〜Ｃ６ コック 1 heat storage tank 2 heat exchange tank 3 pump 4 radiator 5 heat medium circulation path 6 heat medium 7 heater 8 vacuum pump 9 inert gas filling device C1 to C6 cock
Claims (2)
槽と、この蓄熱槽を通して循環させる液相の熱媒体を収
納した熱交換槽と、蓄熱槽に貯えた熱を放出する放熱器
を有する蓄熱装置に、当該装置の内部を真空引きする装
置と、真空引き後の蓄熱装置内部に不活性ガスを充填す
る装置を付加して構成される蓄熱装置。1. A heat storage tank containing a heat storage material made of a polymer material, a heat exchange tank containing a liquid-phase heat medium to be circulated through the heat storage tank, and a radiator for releasing heat stored in the heat storage tank. A heat storage device configured by adding a device for vacuuming the inside of the device and a device for filling the inside of the heat storage device after vacuuming with an inert gas to the heat storage device.
材との間で熱交換を行う液相の熱媒体を用いた蓄熱装置
の内部を真空引きして脱水分処理と前記熱媒体中に溶存
するガスの脱気処理を行い、その後、装置内部に不活性
ガスを充填して装置内空間を不活性雰囲気にすることか
ら成る蓄熱材と熱媒体の劣化防止方法。2. A dehydration component treatment and the inside of the heat medium by evacuating the inside of a heat storage device using a heat storage material made of a polymer material and a liquid phase heat medium for exchanging heat with the heat storage material. A method for preventing deterioration of a heat storage material and a heat medium, which comprises degassing a gas dissolved in a gas, and then filling the inside of the device with an inert gas to make an internal space of the device an inert atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5261154A JPH07113592A (en) | 1993-10-19 | 1993-10-19 | Heat accumulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5261154A JPH07113592A (en) | 1993-10-19 | 1993-10-19 | Heat accumulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07113592A true JPH07113592A (en) | 1995-05-02 |
Family
ID=17357865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5261154A Pending JPH07113592A (en) | 1993-10-19 | 1993-10-19 | Heat accumulation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07113592A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007163077A (en) * | 2005-12-15 | 2007-06-28 | Ishikawajima Harima Heavy Ind Co Ltd | Heat transport method and system |
| JP2008157578A (en) * | 2006-12-26 | 2008-07-10 | Kobe Steel Ltd | Heat storage system and heat storage device |
| WO2009113151A1 (en) * | 2008-03-10 | 2009-09-17 | ジャパン・フィールド株式会社 | Method of heating heating medium liquid and apparatus therefor |
| JP2015124931A (en) * | 2013-12-26 | 2015-07-06 | 豊田通商株式会社 | Heat storage management system |
-
1993
- 1993-10-19 JP JP5261154A patent/JPH07113592A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007163077A (en) * | 2005-12-15 | 2007-06-28 | Ishikawajima Harima Heavy Ind Co Ltd | Heat transport method and system |
| JP2008157578A (en) * | 2006-12-26 | 2008-07-10 | Kobe Steel Ltd | Heat storage system and heat storage device |
| WO2009113151A1 (en) * | 2008-03-10 | 2009-09-17 | ジャパン・フィールド株式会社 | Method of heating heating medium liquid and apparatus therefor |
| JP2015124931A (en) * | 2013-12-26 | 2015-07-06 | 豊田通商株式会社 | Heat storage management system |
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