JPH0777393A - Heat accumulator - Google Patents
Heat accumulatorInfo
- Publication number
- JPH0777393A JPH0777393A JP5173735A JP17373593A JPH0777393A JP H0777393 A JPH0777393 A JP H0777393A JP 5173735 A JP5173735 A JP 5173735A JP 17373593 A JP17373593 A JP 17373593A JP H0777393 A JPH0777393 A JP H0777393A
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- heat
- storage material
- filled
- pipe
- 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
- 239000000835 fiber Substances 0.000 claims abstract description 42
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000005338 heat storage Methods 0.000 claims description 138
- 239000011232 storage material Substances 0.000 claims description 76
- 230000004308 accommodation Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 5
- 239000002826 coolant Substances 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 description 15
- 239000007791 liquid phase Substances 0.000 description 9
- 239000007790 solid phase Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 230000007704 transition Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910013553 LiNO Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内燃機関の廃熱を蓄熱
し始動時の予熱あるいは車内の暖房などに利用する蓄熱
装置に関し、さらに詳しくは、熱を断熱保存する蓄熱コ
ア部における伝熱媒体と蓄熱材との熱交換効率を高めた
蓄熱装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage device that stores waste heat of an internal combustion engine and uses it for preheating at the time of starting or for heating the inside of a vehicle. More specifically, it relates to a heat transfer in a heat storage core portion for adiabatically storing heat. The present invention relates to a heat storage device having improved heat exchange efficiency between a medium and a heat storage material.
【０００２】[0002]
【従来の技術】最近、自動車用エンジンなどの内燃機関
におけるエネルギー効率を高めるために、内燃機関から
生じる廃熱の一部を蓄熱保存し、この熱を必要に応じ
て、例えば冬期間におけるエンジンの始動前の車内暖房
やエンジン吸気部の予熱に利用して燃費の改善などに役
立てるための蓄熱装置が提案されている。蓄熱装置の原
理は、固相および液相状態の比熱が大きく、冷却時の伝
熱媒体温度範囲で固相から液相に相転移する際に大きな
相転移熱を発生する材料を蓄熱材として用い、この蓄熱
材とエンジン内での燃焼熱を冷却するための冷却液（伝
熱媒体）との間で熱交換を行わせて熱を蓄えるものであ
る。蓄熱材は蓄熱時には伝熱媒体の熱を吸収して固相か
ら液相に転移し、さらに伝熱媒体の温度まで上昇する。
この加熱状態の蓄熱材を断熱状態にて保存しておき、必
要時に蓄熱材自体の熱と蓄熱材が液相から固相へ転移す
るときに放出される転移熱をエンジンや室内に伝熱媒体
を介して導く。伝熱媒体としてはエンジンの冷却水が利
用され、また蓄熱材としてはＢａ（ＯＨ）2 ８Ｈ2 Ｏな
どが使用されている。2. Description of the Related Art Recently, in order to improve energy efficiency in an internal combustion engine such as an automobile engine, a part of waste heat generated from the internal combustion engine is stored and stored, and this heat is stored as needed, for example, in an engine during a winter period. A heat storage device has been proposed for use in heating the interior of the vehicle before starting and preheating the engine intake part to improve fuel efficiency. The principle of the heat storage device is that the specific heat of the solid phase and the liquid phase state is large, and a material that generates a large phase transition heat when the phase transitions from the solid phase to the liquid phase in the temperature range of the heat transfer medium during cooling is used as the heat storage material. , Heat is stored between the heat storage material and a cooling liquid (heat transfer medium) for cooling the combustion heat in the engine. At the time of heat storage, the heat storage material absorbs the heat of the heat transfer medium, transitions from the solid phase to the liquid phase, and further rises to the temperature of the heat transfer medium.
The heat storage material in this heating state is stored in an adiabatic state, and the heat of the heat storage material itself and the transfer heat released when the heat storage material transitions from the liquid phase to the solid phase are transferred to the engine or the room Guide through. Engine cooling water is used as the heat transfer medium, and Ba (OH) 2 8H 2 O or the like is used as the heat storage material.
【０００３】このような蓄熱装置においては、蓄熱コア
部の蓄熱材と伝熱媒体との間の熱交換効率が出来るだけ
高いことが望ましい。そこで、伝熱媒体管路の外周にフ
ィンを設け、蓄熱材との接触面積を大きくすることによ
って熱交換効率を高める提案がなされている。この具体
例を図６および図７に示す。図６の例は、隣接する伝熱
媒体管路５１の間にコルゲートフィン５２を設け、該フ
ィン５２の間に蓄熱材５３を充填した構造であり、管路
５１を流れる冷却水の熱が多数のフィン５２を通じて蓄
熱材に伝達される。また、このようなコルゲートフィン
５２を設ける際に、図７に示すように、フィン５２の面
にルーバ５３を設けて蓄熱材の充填を容易にした構造も
試みられている。In such a heat storage device, it is desirable that the heat exchange efficiency between the heat storage material of the heat storage core portion and the heat transfer medium is as high as possible. Therefore, a proposal has been made to increase the heat exchange efficiency by providing fins on the outer circumference of the heat transfer medium conduit to increase the contact area with the heat storage material. This specific example is shown in FIGS. 6 and 7. The example of FIG. 6 has a structure in which corrugated fins 52 are provided between adjacent heat transfer medium pipes 51, and a heat storage material 53 is filled between the fins 52, and the heat of the cooling water flowing through the pipes 51 is large. The heat is transferred to the heat storage material through the fins 52. Further, when such a corrugated fin 52 is provided, as shown in FIG. 7, a structure in which a louver 53 is provided on the surface of the fin 52 to facilitate the filling of the heat storage material has been attempted.
【０００４】[0004]
【発明の解決課題】以上のように上記蓄熱装置は、蓄熱
材が固相と液相とに相互に転移する際の転移熱として余
熱を保存し、利用するものであり、固相と液相との間で
大きな相転移熱を発生するＢａ（ＯＨ）2 ８Ｈ2 Ｏなど
を蓄熱材として用いている。ところが、一般に、固相の
熱伝導性は液相よりも低いため、液相の蓄熱材が潜熱を
放出する際、フィンの間に充填されている蓄熱材のう
ち、管壁やフィンに接触する部分の蓄熱材が固相化する
と、これらに接触しない中心部の蓄熱材が液相のまま残
り、十分に潜熱を取出せない問題がある。本発明は、従
来提案されている蓄熱装置における上記問題を解決し、
熱交換効率を高めた蓄熱装置を提供するものである。As described above, the above heat storage device stores and uses the residual heat as the transfer heat when the heat storage material transforms between the solid phase and the liquid phase. Ba (OH) 2 8H 2 O or the like that generates a large amount of phase transition heat between and is used as a heat storage material. However, since the thermal conductivity of the solid phase is generally lower than that of the liquid phase, when the liquid phase heat storage material releases latent heat, it contacts the pipe wall or the fins of the heat storage material filled between the fins. When the heat storage materials in the portions are solid-phased, the heat storage material in the central portion that does not come into contact with them remains in the liquid phase, and there is a problem that latent heat cannot be sufficiently extracted. The present invention solves the above problems in a heat storage device that has been conventionally proposed,
A heat storage device having improved heat exchange efficiency.
【０００５】[0005]
【課題の解決手段】本発明は、上記技術課題に鑑み、蓄
熱材に熱伝導性の良い金属繊維を混入することにより、
蓄熱材と伝熱媒体との間の熱交換効率を高めたものであ
る。すなわち、本発明によれば以下の蓄熱装置が提供さ
れる。 （１） 熱を断熱保存する蓄熱コア部を有し、該蓄熱コ
ア部の内部には蓄熱材収容部と該収容部を流れる伝熱媒
体の流路が形成されており、該伝熱媒体と蓄熱材との間
で熱交換が行われる蓄熱装置において、蓄熱材収容部に
蓄熱材と共に熱伝導性の良い金属繊維が充填されている
ことを特徴とする蓄熱装置。 （２） 伝熱媒体の流路となる管材の間にフィンが介設
されており、該フィンの間に金属繊維と蓄熱材が充填さ
れている上記(1) の蓄熱装置。 （３） 蓄熱材を収納する管材が設けられ、該管材の間
に伝熱媒体の流路が形成されている蓄熱装置において、
該管材の内部に金属繊維と共に蓄熱材が充填されている
上記(1) の蓄熱装置。SUMMARY OF THE INVENTION In view of the above technical problems, the present invention provides a heat storage material by mixing metal fibers having good thermal conductivity,
The heat exchange efficiency between the heat storage material and the heat transfer medium is improved. That is, according to the present invention, the following heat storage device is provided. (1) A heat storage core part for adiabatically storing heat is provided, and inside the heat storage core part, a heat storage material accommodating part and a flow path of a heat transfer medium flowing through the accommodating part are formed. A heat storage device in which heat is exchanged with a heat storage material, wherein the heat storage material housing part is filled with a heat storage material and metal fibers having good thermal conductivity. (2) The heat storage device according to the above (1), in which fins are provided between the pipes serving as flow paths for the heat transfer medium, and the metal fibers and the heat storage material are filled between the fins. (3) In a heat storage device in which a pipe material for accommodating a heat storage material is provided, and a flow path of a heat transfer medium is formed between the pipe materials,
The heat storage device according to (1) above, wherein the heat storage material is filled together with the metal fibers inside the pipe material.
【０００５】[0005]
【実施例】以下、本発明を図面に示す実施例に基づいて
詳細に説明する。図１は本発明に係る蓄熱装置の概略を
示す部分切欠き斜視図であり、図２はその断面図、図３
は蓄熱材の充填状態を示す他の実施例の部分斜視図であ
る。また図４および図５は本発明に係る他の蓄熱装置の
概略断面図である。本実施例の蓄熱装置２０は、蓄熱材
が充填された蓄熱コア部２１を有し、該蓄熱コア部２１
は断熱領域２３を隔てて外側ケーシング２２に収納され
ている。該断熱領域２３は真空に保たれる。蓄熱コア部
２１は内側ケーシング２４を有し、その内部に伝熱媒体
（冷却水）が流れる多数の水管２５が長手方向に沿って
並列に設置されている。該水管配設部分の両側には水管
２５に連通する貯溜部２６、２７が設けられており、こ
の貯溜部２６、２７にはケーシングを貫いて導入管２８
および排出管２９が接続している。冷却水は導入管２８
を通じて貯溜部２６に導かれ、ここから各水管２５に流
入し、該水管２５を通じて蓄熱コア部２１の内部を循環
して流れ、他方の貯溜部２７に至り、排出管２９を通じ
て外部に導かれる。上記水管２５の間には蓄熱材３０が
充填されており、冷却水が水管２５を通じて蓄熱コア部
２１の内部を循環する間に該水管２５の隔壁を通じて冷
却水と蓄熱材３０との間で熱交換が行われる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. FIG. 1 is a partially cutaway perspective view showing an outline of a heat storage device according to the present invention, FIG. 2 is a sectional view thereof, and FIG.
FIG. 6 is a partial perspective view of another embodiment showing a filled state of the heat storage material. 4 and 5 are schematic sectional views of another heat storage device according to the present invention. The heat storage device 20 of the present embodiment has a heat storage core portion 21 filled with a heat storage material, and the heat storage core portion 21.
Are housed in the outer casing 22 with a heat insulating region 23 therebetween. The insulating region 23 is kept in a vacuum. The heat storage core portion 21 has an inner casing 24, in which a large number of water pipes 25 through which a heat transfer medium (cooling water) flows are arranged in parallel along the longitudinal direction. Reservoir portions 26 and 27 communicating with the water pipe 25 are provided on both sides of the water pipe arrangement portion, and the introduction pipe 28 is formed through the casing in the reservoir portions 26 and 27.
And the discharge pipe 29 is connected. Inlet pipe 28 for cooling water
Through the water pipe 25, flows into the water pipes 25 through the water pipes 25, circulates inside the heat storage core 21 through the water pipes 25, reaches the other reservoir 27, and is led to the outside through the discharge pipe 29. A heat storage material 30 is filled between the water pipes 25, and while the cooling water circulates inside the heat storage core portion 21 through the water pipes 25, heat is generated between the cooling water and the heat storage material 30 through the partition walls of the water pipes 25. Exchange will take place.
【０００６】上記蓄熱装置２０では、隣接する水管２５
の間にはコルゲートフィン３１が介設されており、該水
管２５の間に金属繊維３２が蓄熱材３０と共に充填され
ている。該金属繊維３２は蓄熱材よりも融点が高く、熱
伝導性の良いものが用いられる。具体的には、銅、アル
ミニウム、鋼、ステンレスなどの細長い線材が適当であ
る。該金属繊維３２は伝熱効果が良いように互いに絡み
合った状態で使用され、隣接する水管２５の管壁および
フィン３１に接触して充填される。この結果、蓄熱材３
０の充填部分内部に金属繊維３２が網状に広がった状態
になる。なお、該金属繊維３２の長さが短いと接触部分
が多くなり、伝熱効果が低下するので、金属繊維３２は
長いほうが好ましい。また、金属繊維の充填量が多過ぎ
ると相対的に蓄熱材の充填量が限られるので金属繊維の
量は蓄熱材の充填量との兼合いでその最適量が定められ
る。該金属繊維間に蓄熱材を充填するには、蓄熱材を加
熱して液状にし、これを金属繊維の間に注入すれば良
い。蓄熱材３０としてはＢａ（ＯＨ）2 ８Ｈ2 Ｏが一般
的であるが、この他に、Ｍｇ（ＮＯ3 ）2 ・６Ｈ2 Ｏ／
ＬｉＮＯ3 を用いれば腐食性が少ないので好ましい。In the heat storage device 20, the adjacent water pipe 25
Corrugated fins 31 are provided between them, and metal fibers 32 are filled between the water pipes 25 together with the heat storage material 30. As the metal fiber 32, one having a higher melting point than the heat storage material and good thermal conductivity is used. Specifically, a slender wire rod made of copper, aluminum, steel, stainless steel or the like is suitable. The metal fibers 32 are used in a state in which they are intertwined with each other so as to have a good heat transfer effect, and are filled in contact with the pipe wall of the adjacent water pipe 25 and the fin 31. As a result, the heat storage material 3
The metal fibers 32 are spread like a net inside the filled portion of 0. It should be noted that if the length of the metal fiber 32 is short, the number of contact portions increases and the heat transfer effect decreases, so the metal fiber 32 is preferably long. Further, when the filling amount of the metal fibers is too large, the filling amount of the heat storage material is relatively limited. Therefore, the optimum amount of the metal fibers is determined in consideration of the filling amount of the heat storage material. In order to fill the heat storage material between the metal fibers, the heat storage material may be heated into a liquid state and then injected into the space between the metal fibers. Ba (OH) 2 8H 2 O is generally used as the heat storage material 30, but in addition to this, Mg (NO 3 ) 2 .6H 2 O /
LiNO 3 is preferable because it is less corrosive.
【０００７】上記蓄熱装置２０において、冷却水から放
出される余熱は水管２５の壁面およびコルゲートフィン
３１を経て、これに接触する金属繊維３２を通じて蓄熱
材に伝達される。この金属繊維３２は水管２５の間に充
填された蓄熱材３０の充填部分内部に網目状に広がって
いるので、金属繊維３２を通じて蓄熱材３０の隅々に熱
が伝達されるため蓄熱材全体で均一な熱交換が行われ、
かつ短時間に速やかな熱交換を行うことができる。従っ
て、液状の蓄熱材から冷却水に熱が伝達される場合にも
金属繊維３２を通じ蓄熱材全体で速やかに熱伝達が行わ
れ、優れた熱交換効率が発揮される。金属繊維３２を有
しない従来の構造では、水管２５やフィン３１の壁面が
固相化した蓄熱材によって覆われ、液相の蓄熱材からの
伝熱が妨げられるために、これらの壁面に接触しない蓄
熱材が液状のまま暫く残留し、熱交換効率が低下するが
上記蓄熱装置２０ではこのような問題がない。In the heat storage device 20, the residual heat released from the cooling water passes through the wall surface of the water pipe 25 and the corrugated fins 31 and is transferred to the heat storage material through the metal fibers 32 in contact therewith. Since the metal fibers 32 spread in a mesh shape inside the filled portion of the heat storage material 30 filled between the water pipes 25, heat is transferred to every corner of the heat storage material 30 through the metal fibers 32, so that the entire heat storage material is made. Uniform heat exchange,
In addition, it is possible to quickly exchange heat. Therefore, even when heat is transferred from the liquid heat storage material to the cooling water, the heat is quickly transferred through the heat storage material through the metal fibers 32, and excellent heat exchange efficiency is exhibited. In the conventional structure having no metal fiber 32, the wall surfaces of the water pipe 25 and the fin 31 are covered with the solid-phase heat storage material, and the heat transfer from the liquid phase heat storage material is hindered, so that they do not come into contact with these wall surfaces. The heat storage material remains in a liquid state for a while and the heat exchange efficiency is reduced, but the heat storage device 20 does not have such a problem.
【０００８】図３は本発明の他の実施例に係り、水管２
５の間にコルゲートフィンを介在せずに金属繊維３２を
充填した例を示す。本例では金属繊維３２が蓄熱材と水
管２５との間の熱伝導部材として用いられると共に上記
フィンの役割をも兼用し、隣接する水管相互の間隔を保
持する補強部材としても利用される。本実施例の蓄熱装
置も図１、２の場合と同様に、金属繊維３２を通じて冷
却水と蓄熱材との間で熱交換が行われるので優れた熱交
換効率が達成される。また本実施例の装置では水管２５
の間にフィン３１を有しないので、製造工程において、
水管２５の間にコルゲートフィンを設ける工程を省略す
ることができ、製造工程を簡略化することができる。FIG. 3 relates to another embodiment of the present invention, which is a water pipe 2
An example is shown in which the metal fibers 32 are filled between the No. 5 and No corrugated fins. In this example, the metal fibers 32 are used as a heat conducting member between the heat storage material and the water pipe 25, and also serve as the fins, and are also used as a reinforcing member for maintaining a space between adjacent water pipes. As in the case of FIGS. 1 and 2, the heat storage device of the present embodiment also achieves excellent heat exchange efficiency because heat is exchanged between the cooling water and the heat storage material through the metal fibers 32. Further, in the apparatus of this embodiment, the water pipe 25
Since there is no fin 31 between the
The step of providing the corrugated fins between the water pipes 25 can be omitted, and the manufacturing process can be simplified.
【０００９】図４の実施例は、蓄熱コア部２１の内部に
多数の管材３５を並設し、該管材３５の間を冷却水が流
れる流路３６とし、該管材３５の内部に金属繊維と共に
蓄熱材を充填した構造の蓄熱装置である。図示する例で
は、蓄熱コア部２１の内部は隔壁３７によって上下の蓄
熱室３８、３９に区画され、蓄熱室３８、３９の側端に
は冷却水の導入管４０と排出管４１各々接続しており、
また他端には貯溜室４２が設けられ、該貯溜室４２によ
って蓄熱室３８、３９が連通されている。各蓄熱室３
８、３９の内部には長手方向に対して直角に多数の管材
３５が配設されている。該管材３５はその両側が支持材
４２によって一定間隔に固定されており、該管材３５の
間が冷却水の流路３６を形成している。該管材３５の内
部には金属繊維と共に蓄熱材が充填されている。金属繊
維は他の実施例と同様に熱伝導性の良いものが用いら
れ、管材３５の内壁に接触するように充填される。導入
管４０を通じて蓄熱室３８に流入した冷却水は多数の管
材３５の間を流れて貯溜室４２から隣接する蓄熱室３９
に導かれ、さらに多数の管材３５の間を流れて排出管４
１から外部に排出される。冷却水が蓄熱室３８、３９を
流れる間に管材３５の管壁を通じて冷却水と蓄熱材との
間で熱交換が行われる。この熱交換の際、管材３５の内
部には熱伝導性の良い金属繊維が充填されており、金属
繊維が管材内部で網目状に広がっているので、金属繊維
を通じて蓄熱材の隅々に熱が伝達され、優れた熱交換効
率が得られる。In the embodiment shown in FIG. 4, a large number of pipe members 35 are arranged in parallel inside the heat storage core portion 21 to form passages 36 through which cooling water flows between the pipe members 35. It is a heat storage device having a structure filled with a heat storage material. In the illustrated example, the inside of the heat storage core portion 21 is divided into upper and lower heat storage chambers 38 and 39 by a partition wall 37, and cooling water introduction pipes 40 and discharge pipes 41 are connected to the side ends of the heat storage chambers 38 and 39, respectively. Cage,
A storage chamber 42 is provided at the other end, and the storage chamber 42 communicates with the heat storage chambers 38 and 39. Each heat storage room 3
A large number of pipe members 35 are arranged in the interiors of the pipes 8 and 39 at right angles to the longitudinal direction. Both sides of the pipe member 35 are fixed at regular intervals by support members 42, and a cooling water passage 36 is formed between the pipe members 35. The pipe 35 is filled with a heat storage material together with metal fibers. As in the other embodiments, metal fibers having good thermal conductivity are used, and the metal fibers are filled so as to come into contact with the inner wall of the pipe material 35. The cooling water that has flowed into the heat storage chamber 38 through the introduction pipe 40 flows between the many pipe members 35 and flows from the storage chamber 42 to the adjacent heat storage chamber 39.
To the discharge pipe 4 by flowing between a large number of pipe materials 35.
1 is discharged to the outside. While the cooling water flows through the heat storage chambers 38 and 39, heat is exchanged between the cooling water and the heat storage material through the pipe wall of the pipe material 35. At the time of this heat exchange, the metal fibers having good thermal conductivity are filled inside the pipe material 35, and since the metal fibers spread in a mesh shape inside the pipe material, heat is applied to every corner of the heat storage material through the metal fibers. It is transmitted and excellent heat exchange efficiency is obtained.
【００１０】[0010]
【発明の効果】本発明の蓄熱装置は、蓄熱コア部の内部
に蓄熱材と共に熱伝導性の良い金属繊維が充填され、蓄
熱材の内部に金属繊維が網目状に広がった状態であるの
で、金属繊維を通じて蓄熱材の隅々で熱伝達が行われ、
優れた熱交換効率を発揮する。従来の装置では、液状の
蓄熱材から潜熱を取出す際、水管やフィンの壁面が固相
化した蓄熱材によって覆われ、液状の蓄熱材からの熱伝
達が妨げられるために、これらの壁面に接触しない蓄熱
材が液状のまま暫く残留し、熱交換効率が低下する問題
があるが、本発明の蓄熱装置ではこのような問題がな
く、金属繊維を通じて蓄熱材全体で均一な熱交換が行わ
れるので熱交換効率に優れる。また蓄熱材充填部分に蓄
熱材と共に金属繊維を充填すれば良いので製造も容易で
あり、実用性に優れる。In the heat storage device of the present invention, the heat storage core portion is filled with the heat storage material together with the metal fibers having good thermal conductivity, and the metal fibers are spread in a mesh shape inside the heat storage material. Heat transfer is performed in every corner of the heat storage material through metal fibers,
Exhibits excellent heat exchange efficiency. In the conventional device, when the latent heat is extracted from the liquid heat storage material, the walls of the water pipes and fins are covered with the solid-phase heat storage material, and the heat transfer from the liquid heat storage material is impeded. There is a problem that the heat storage material does not remain in a liquid state for a while and the heat exchange efficiency decreases, but the heat storage device of the present invention does not have such a problem, and uniform heat exchange is performed in the entire heat storage material through the metal fiber. Excellent heat exchange efficiency. Further, since it is sufficient to fill the heat storage material-filled portion with the heat storage material together with the metal fibers, it is easy to manufacture and excellent in practicality.
【図１】本発明に係る蓄熱装置の概略を示す部分切欠き
斜視図。FIG. 1 is a partially cutaway perspective view schematically showing a heat storage device according to the present invention.
【図２】上記蓄熱装置の断面図。FIG. 2 is a sectional view of the heat storage device.
【図３】本発明に係る蓄熱材の充填状態を示す部分斜視
図。FIG. 3 is a partial perspective view showing a filled state of the heat storage material according to the present invention.
【図４】本発明に係る他の蓄熱装置の縦断面図。FIG. 4 is a vertical cross-sectional view of another heat storage device according to the present invention.
【図５】上記蓄熱装置の横断面図。FIG. 5 is a cross-sectional view of the heat storage device.
２０−蓄熱装置 ２１−蓄熱コア部 ２３−断熱領域 ２２、２４−ケーシング ２５−水管 ２６、２７−貯溜部 ２８、４０−導入管 ２９、４１−排出管 ３０−蓄熱材 ３１−フィン ３２−金属繊維 20-Heat storage device 21-Heat storage core part 23-Heat insulation area 22,24-Casing 25-Water pipe 26,27-Reservoir part 28,40-Introduction pipe 29,41-Exhaust pipe 30-Heat storage material 31-Fin 32-Metal fiber
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成６年１月１４日[Submission date] January 14, 1994
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明に係る蓄熱装置の概略を示す部分切欠き
斜視図。FIG. 1 is a partially cutaway perspective view schematically showing a heat storage device according to the present invention.
【図２】上記蓄熱装置の断面図。FIG. 2 is a sectional view of the heat storage device.
【図３】本発明に係る蓄熱材の充填状態を示す部分斜視
図。FIG. 3 is a partial perspective view showing a filled state of the heat storage material according to the present invention.
【図４】本発明に係る他の蓄熱装置の縦断面図。FIG. 4 is a vertical cross-sectional view of another heat storage device according to the present invention.
【図５】上記蓄熱装置の横断面図。FIG. 5 is a cross-sectional view of the heat storage device.
【図６】伝熱媒体管路にコルゲートフィンを設けてなる
蓄熱コア部を示す部分斜視図。FIG. 6 is a partial perspective view showing a heat storage core portion in which corrugated fins are provided in a heat transfer medium conduit.
【図７】ルーバを有するコルゲートフィンと伝熱媒体管
路との組立て構造を示す部分斜視図。FIG. 7 is a partial perspective view showing an assembly structure of a corrugated fin having a louver and a heat transfer medium conduit.
【符号の説明】 ２０−蓄熱装置 ２１−蓄熱コア部 ２３−断熱領域 ２２、２４−ケーシング ２５−水管 ２６、２７−貯溜部 ２８、４０−導入管 ２９、４１−排出管 ３０−蓄熱材 ３１−フィン ３２−金属繊維[Explanation of Codes] 20-Heat Storage Device 21-Heat Storage Core Part 23-Heat Insulation Area 22, 24-Casing 25-Water Pipe 26, 27-Reservoir 28,40-Introduction Pipe 29,41-Exhaust Pipe 30-Heat Storage Material 31- Fin 32-metal fiber
───────────────────────────────────────────────────── フロントページの続き (72)発明者 舟橋 芳樹 愛知県小牧市大字北外山字哥津3600番地 東海ゴム工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiki Funabashi 3600 Amigazu, Kita Sotoyama, Komaki City, Aichi Prefecture Tokai Rubber Industry Co., Ltd.
Claims (3)
蓄熱コア部の内部には蓄熱材収容部と該収容部を流れる
伝熱媒体の流路が形成されており、該伝熱媒体と蓄熱材
との間で熱交換が行われる蓄熱装置において、蓄熱材収
容部に蓄熱材と共に熱伝導性の良い金属繊維が充填され
ていることを特徴とする蓄熱装置。1. A heat storage core part for adiabatically storing heat, wherein a heat storage material accommodating part and a flow path of a heat transfer medium flowing through the accommodating part are formed inside the heat storage core part. A heat storage device in which heat is exchanged between a medium and a heat storage material, wherein the heat storage material accommodation part is filled with a heat storage material and metal fibers having good thermal conductivity.
が介設されており、該フィンの間に金属繊維と蓄熱材が
充填されている請求項１の蓄熱装置。2. The heat storage device according to claim 1, wherein fins are provided between the pipes serving as flow paths for the heat transfer medium, and the metal fibers and the heat storage material are filled between the fins.
材の間に伝熱媒体の流路が形成されている蓄熱装置にお
いて、該管材の内部に金属繊維と共に蓄熱材が充填され
ている請求項１の蓄熱装置。3. A heat storage device in which a pipe material for accommodating a heat storage material is provided, and a flow path for a heat transfer medium is formed between the pipe materials, wherein the pipe material is filled with the heat storage material together with metal fibers. The heat storage device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5173735A JPH0777393A (en) | 1993-06-21 | 1993-06-21 | Heat accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5173735A JPH0777393A (en) | 1993-06-21 | 1993-06-21 | Heat accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0777393A true JPH0777393A (en) | 1995-03-20 |
Family
ID=15966166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5173735A Pending JPH0777393A (en) | 1993-06-21 | 1993-06-21 | Heat accumulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0777393A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013036734A (en) * | 2011-08-10 | 2013-02-21 | J Eberspecher Gmbh & Co Kg | Latent heat thermal storage unit and catalyst convertor |
-
1993
- 1993-06-21 JP JP5173735A patent/JPH0777393A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013036734A (en) * | 2011-08-10 | 2013-02-21 | J Eberspecher Gmbh & Co Kg | Latent heat thermal storage unit and catalyst convertor |
| CN102953789A (en) * | 2011-08-10 | 2013-03-06 | J·埃贝斯佩歇合资公司 | Latent heat storage device and catalytic converter |
| US9005533B2 (en) | 2011-08-10 | 2015-04-14 | Eberspächer Exhaust Technology GmbH & Co. KG | PCM device and catalytic converter |
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