JPH0335599B2 - - Google Patents
Info
- Publication number
- JPH0335599B2 JPH0335599B2 JP57179835A JP17983582A JPH0335599B2 JP H0335599 B2 JPH0335599 B2 JP H0335599B2 JP 57179835 A JP57179835 A JP 57179835A JP 17983582 A JP17983582 A JP 17983582A JP H0335599 B2 JPH0335599 B2 JP H0335599B2
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- storage container
- storage material
- temperature sensor
- solid
- 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.)
- Expired - Lifetime
Links
- 238000005338 heat storage Methods 0.000 claims description 99
- 239000011232 storage material Substances 0.000 claims description 40
- 239000007787 solid Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 description 8
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QHFQAJHNDKBRBO-UHFFFAOYSA-L calcium chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Ca+2] QHFQAJHNDKBRBO-UHFFFAOYSA-L 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
-
- 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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/028—Control arrangements therefor
-
- 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
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Heating Systems (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は植物などを育成する温室などに使用さ
れる蓄熱装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heat storage device used in a greenhouse for growing plants and the like.
従来この種蓄熱装置に用いる蓄熱材としては、
主として水が使用されていた。このような水の顕
熱のみを利用した蓄熱装置においては、その蓄熱
容量が極めて小さい。このため最近はたとえば特
開昭53−14837に示すように蓄熱材として無機含
水塩（例えば融点30℃の６水和塩化カルシウム）
を用い、この無機含水塩が凝固−融解する際に発
生する大きな潜熱を利用することにより、蓄熱装
置を大幅に小形化する試みが行われている。
Conventionally, heat storage materials used in this type of heat storage device include:
Water was mainly used. Such a heat storage device that uses only the sensible heat of water has an extremely small heat storage capacity. For this reason, recently, inorganic hydrated salts (for example, calcium chloride hexahydrate with a melting point of 30°C) have been used as heat storage materials, as shown in JP-A-53-14837.
Attempts have been made to significantly downsize the heat storage device by utilizing the large latent heat generated when this inorganic hydrated salt solidifies and melts.
〔発明が解決しようとする問題点〕
しかしながら上記試みを実用化するに当つて
は、凝固−融解する潜熱蓄熱材中への蓄熱の度合
を正確に感知する方法が確立されていなく、この
ため蓄熱システムとして良好に作動させることが
できず実用化することができなかつた。なお蓄熱
の度合を感知するのに関連するものとして、実開
昭55−126583号なるものがあるが、固体の比重量
が液体のそれより小さい氷−水を用いたもので、
固体の比重量が液体のそれより大きい無機含水塩
を蓄熱材とする場合には利用できない。[Problems to be Solved by the Invention] However, in putting the above-mentioned attempt into practical use, a method for accurately sensing the degree of heat storage in the latent heat storage material that solidifies and melts has not been established. The system could not be operated well and could not be put to practical use. In addition, there is a method related to sensing the degree of heat storage called Utility Model Application No. 55-126583, which uses ice-water, where the specific weight of the solid is smaller than that of the liquid.
It cannot be used when the heat storage material is an inorganic hydrated salt whose solid specific weight is greater than that of the liquid.
本発明は上記点にかんがみ固体の比重量が液体
のそれより大きい潜熱蓄熱材への蓄熱の度合い、
特に蓄熱終了時の状態を簡便な方法で的確に感知
し、蓄熱システムを円滑に動作させることができ
る蓄熱装置を提供することを目的とするものであ
る。 In view of the above points, the present invention provides a degree of heat storage in a latent heat storage material in which the specific weight of the solid is larger than that of the liquid.
In particular, it is an object of the present invention to provide a heat storage device that can accurately sense the state at the end of heat storage using a simple method and smoothly operate the heat storage system.
上記目的は、固体時の比重量が液体時の比重量
より大きな潜熱蓄熱材を収納した蓄熱容器を用い
た蓄熱装置において、蓄熱容器の底面のほぼ中央
部に、蓄熱容器の外側から内側にへこむ凹部内に
温度センサを付設し、この温度センサからの信号
により前記蓄熱容器を加熱するための加熱器の稼
働を停止させるように構成することにより、達成
される。
The above purpose is to provide a heat storage device using a heat storage container containing a latent heat storage material whose specific weight in solid state is larger than that in liquid state. This is achieved by attaching a temperature sensor in the recess and configuring so that the operation of the heater for heating the heat storage container is stopped in response to a signal from the temperature sensor.
蓄熱容器の底面のほぼ中央部に、蓄熱容器の外
側から内側にへこむ凹部を設け、この凹部内に温
度センサを付設したので、蓄熱容器内の底部に蓄
熱終了前まで沈下残存している固体蓄熱材の温度
を正確にとらえることができる。またこの際、温
度センサを蓄熱容器の凹部に設けるため、蓄熱容
器の外面を流れる温度の高い流体より温度センサ
に熱伝導によつて流入する熱による測定誤差を小
さく抑えることができる。
A recess that recesses from the outside to the inside of the heat storage container is provided at approximately the center of the bottom of the heat storage container, and a temperature sensor is installed inside this recess, so that the solid heat storage that remains submerged at the bottom of the heat storage container until the end of heat storage. It is possible to accurately measure the temperature of the material. Furthermore, since the temperature sensor is provided in the recess of the heat storage container, it is possible to suppress measurement errors due to heat flowing into the temperature sensor by thermal conduction from the high temperature fluid flowing on the outer surface of the heat storage container.
以下本発明の実施例を第１図及び第２図を用い
て説明する。これらの図において、１は液体蓄熱
材２ａと固体蓄熱材２ｂから成る潜熱蓄熱材を内
蔵する蓄熱容器で、この蓄熱容器１は外囲器４内
に多段に収納されている。第２図に示すように、
蓄熱容器１の底面のほぼ中央部に、蓄熱容器１の
外側から内側にへこむ凹部８も設け、この凹部内
に付設した温度センサ３（例えばサーミスタ、熱
電対、液体および気体を用いた膨張式感熱筒）を
設けてある。５は外囲器４内の底部に、かつ最下
段の蓄熱容器１ｎの下方位置に配設された加熱
器、６はリード線を介して温度センサ３および加
熱器５に接続された加熱器、６はリード線を介し
て温度センサ３及び加熱器５に接続された操作
器、１０は外囲器４の上部開口内に設置されたフ
アンである。
Embodiments of the present invention will be described below with reference to FIGS. 1 and 2. In these figures, reference numeral 1 denotes a heat storage container containing a latent heat storage material consisting of a liquid heat storage material 2a and a solid heat storage material 2b, and the heat storage container 1 is housed in an envelope 4 in multiple stages. As shown in Figure 2,
A recess 8 recessed from the outside to the inside of the heat storage container 1 is also provided at approximately the center of the bottom of the heat storage container 1, and a temperature sensor 3 (e.g., a thermistor, thermocouple, expansion type thermosensitive sensor using liquid and gas) is installed inside the recess. A cylinder) is provided. 5 is a heater disposed at the bottom of the envelope 4 and below the lowest heat storage container 1n; 6 is a heater connected to the temperature sensor 3 and the heater 5 via lead wires; 6 is an operating device connected to the temperature sensor 3 and the heater 5 via lead wires, and 10 is a fan installed in the upper opening of the envelope 4.
次に上記のような構成からなる本実施例の作用
について説明する。 Next, the operation of this embodiment configured as described above will be explained.
フアン１０の駆動により外囲器４の下部から導
入された空気は、加熱器５および蓄熱容器１群の
周囲を流通して上部開口から外囲器４外へ排出さ
れる。この場合、加熱器５で発生した熱は空気を
介して蓄熱容器１に伝達され、さらにその内部の
潜熱蓄熱材、すなわち固体蓄熱材２ｂおよび液体
蓄熱材、すなわち固体蓄熱材２ｂおよび液体蓄熱
材２ａに伝達される。 Air introduced from the lower part of the envelope 4 by driving the fan 10 flows around the heater 5 and the group of heat storage containers and is discharged to the outside of the envelope 4 from the upper opening. In this case, the heat generated in the heater 5 is transferred to the heat storage container 1 through the air, and the latent heat storage materials therein, that is, the solid heat storage material 2b and the liquid heat storage material, that is, the solid heat storage material 2b and the liquid heat storage material 2a. is transmitted to.
上記潜熱蓄熱材として一般に無機含水塩（たと
えば融点30℃の塩化カルシウム６水塩）を用いる
と蓄熱過程において蓄熱容器１内の蓄熱材は次の
ように変化する。最初は全て固体蓄熱材２ｂのみ
であるが、外部より熱を受けて固体蓄熱材２ｂは
融解し始め、液体蓄熱材２ａに変化する。この液
体蓄熱材２ａの比重量は固体蓄熱材２ｂのそれよ
り小さいので、蓄熱材２ａは蓄熱材２ｂより常に
上に浮かぶ。蓄熱が進行して、蓄熱材２ａの量が
蓄熱材２ｂのそれより多くなつても、この関係は
変わらない。このため固体蓄熱材２ｂの大きさが
小さくなつても、蓄熱容器１内の底面に沈下した
状態となつている。そして固体蓄熱材２ｂの温度
は融点またはそれ以下であるのに対し、液体蓄熱
材２ａの温度は融点以上となつている。このため
蓄熱が完了したか否かを正確に感知するには、小
さくなつた固体蓄熱材２ｂを追跡し、これが融解
して融点以上になつたか否かで判定する必要があ
る。 When an inorganic hydrated salt (for example, calcium chloride hexahydrate having a melting point of 30° C.) is generally used as the latent heat storage material, the heat storage material in the heat storage container 1 changes as follows during the heat storage process. At first, only the solid heat storage material 2b is present, but upon receiving heat from the outside, the solid heat storage material 2b begins to melt and changes into the liquid heat storage material 2a. Since the specific weight of the liquid heat storage material 2a is smaller than that of the solid heat storage material 2b, the heat storage material 2a always floats above the heat storage material 2b. Even if heat storage progresses and the amount of heat storage material 2a becomes larger than that of heat storage material 2b, this relationship does not change. Therefore, even if the size of the solid heat storage material 2b is reduced, it remains in a state of sinking to the bottom surface of the heat storage container 1. The temperature of the solid heat storage material 2b is at or below the melting point, whereas the temperature of the liquid heat storage material 2a is above the melting point. Therefore, in order to accurately detect whether or not heat storage has been completed, it is necessary to track the solid heat storage material 2b, which has become smaller, and determine whether or not it has melted and reached a temperature above its melting point.
このような無機含水塩等の潜熱蓄熱材の融解事
情に対応した実験を種々行ない、簡便で正確であ
り、また実用性の高い方法を完了するに至つた。
すなわち、蓄熱容器１の底面のほぼ中央部に、蓄
熱容器１の外側から内側にへこむ凹部８を設け、
この凹部８内に温度センサ３を付設した。蓄熱容
器１内の観察を行なつた所、温度センサ３の温度
が融点以上になることと、蓄熱容器１内の固体蓄
熱材２ｂが全部融解していることとがよく対応し
ていることが分かつた。温度センサ３からの信号
は操作器６へ出力され、操作器６が作動して加熱
器５への入力は遮断され、加熱器５の稼働は停止
される。 We conducted various experiments corresponding to the melting conditions of latent heat storage materials such as inorganic hydrated salts, and completed a method that is simple, accurate, and highly practical.
That is, a recess 8 recessed from the outside to the inside of the heat storage container 1 is provided approximately at the center of the bottom surface of the heat storage container 1,
A temperature sensor 3 was attached within this recess 8. When observing the inside of the heat storage container 1, it was found that the temperature of the temperature sensor 3 being above the melting point corresponds well to the fact that the solid heat storage material 2b inside the heat storage container 1 is completely melted. I understand. The signal from the temperature sensor 3 is output to the operating device 6, the operating device 6 is activated, the input to the heater 5 is cut off, and the operation of the heater 5 is stopped.
なお温度センサ３を蓄熱器１の平坦な底部外面
に単に付設すると、落度の高い外気の温度に近い
値を示すことがしばしば起り、このため蓄熱が十
分行なわれないうちに、加熱器５が停止され不都
合である。このような取付方法の場合、実験によ
れば、20〜30％蓄熱材は未融解となり、蓄熱不足
となつた。また蓄熱容器１の上面のほぼ中央に外
側から内側にへこむ凹部を設けて温度センサ３を
付設し、蓄熱容器１内の上部に浮かんだ液体蓄熱
材２ａの温度を感知するようにした実験において
は、約80％蓄熱材は未融解となり、蓄熱不足とな
つた。また温度センサ３を入れた細パイプを蓄熱
容器１内の底部に配設し、底面に残存する固体蓄
熱材２ｂの温度を感知する方法もあるが、蓄熱容
器１がプラスチツクで作つたものにおいては、細
パイプを蓄熱容器１内に挿入するのが困難であ
り、蓄熱材が挿入部分よりもれ出す等の不都合を
きたし、実用性に乏しい。 Note that if the temperature sensor 3 is simply attached to the flat outer surface of the bottom of the heat storage device 1, it often shows a value close to the temperature of the outside air, which has a high degree of fall. It is inconvenient that it has been stopped. In the case of such an attachment method, experiments have shown that 20 to 30% of the heat storage material remains unmelted, resulting in insufficient heat storage. In addition, in an experiment in which a recessed part recessed from the outside to the inside was provided at approximately the center of the upper surface of the heat storage container 1 and a temperature sensor 3 was attached thereto to sense the temperature of the liquid heat storage material 2a floating in the upper part of the heat storage container 1. Approximately 80% of the heat storage material remained unmelted, resulting in insufficient heat storage. There is also a method of disposing a thin pipe containing a temperature sensor 3 at the bottom of the heat storage container 1 to sense the temperature of the solid heat storage material 2b remaining at the bottom, but when the heat storage container 1 is made of plastic, However, it is difficult to insert the thin pipe into the heat storage container 1, causing problems such as the heat storage material leaking out from the inserted part, and is therefore impractical.
本発明に用いる蓄熱容器１底面のほぼ中央部の
凹部の作成は、蓄熱容器１の材質が金属の時はプ
レス加工、プラスチツクの時は型を用いたインジ
エクシヨンモールド加工等により簡単に作ること
ができる。 The concave portion in the approximate center of the bottom of the heat storage container 1 used in the present invention can be easily created by press processing when the material of the heat storage container 1 is metal, or by injection molding using a mold when the material is plastic. Can be done.
以上説明したように本発明によれば、簡単な方
法により蓄熱容器内の固体蓄熱材の温度が容易と
なり、蓄熱終了時の状態を的確に感知し、蓄熱シ
ステムを円滑に動作させることができるようにな
り、実用に供して便利となつた。
As explained above, according to the present invention, the temperature of the solid heat storage material in the heat storage container can be easily adjusted by a simple method, the state at the end of heat storage can be accurately sensed, and the heat storage system can be operated smoothly. It became useful for practical use.
図１は本発明の蓄熱装置の一実施例を示す断面
図、第２図は本発明の実施例に使用される蓄熱容
器の断面図である。
１……蓄熱容器、２ａ……液体蓄熱材、２ｂ…
…固体蓄熱材、３……温度センサ、５……加熱
器、６……操作器、８……凹部。
FIG. 1 is a sectional view showing an embodiment of the heat storage device of the present invention, and FIG. 2 is a sectional view of a heat storage container used in the embodiment of the present invention. 1... Heat storage container, 2a... Liquid heat storage material, 2b...
...solid heat storage material, 3...temperature sensor, 5...heater, 6...operator, 8...recess.
Claims (1)
潜熱蓄熱材を収納した蓄熱容器を用いた蓄熱装置
において、蓄熱容器の底面のほぼ中央部に、蓄熱
容器の外側から内側にへこむ凹部を設け、この凹
部内に温度センサーを付設し、この温度センサー
からの信号により前記蓄熱容器を加熱する加熱器
の稼動を停止させる操作器を設けたことを特徴と
する蓄熱装置。1. In a heat storage device using a heat storage container containing a latent heat storage material whose specific weight in solid state is larger than that in liquid state, a recess that is recessed from the outside to the inside of the heat storage container is provided approximately at the center of the bottom of the heat storage container. A heat storage device, characterized in that a temperature sensor is attached to the recess, and an operation device is provided for stopping operation of a heater that heats the heat storage container based on a signal from the temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57179835A JPS5969693A (en) | 1982-10-15 | 1982-10-15 | Heat accumulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57179835A JPS5969693A (en) | 1982-10-15 | 1982-10-15 | Heat accumulating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5969693A JPS5969693A (en) | 1984-04-19 |
| JPH0335599B2 true JPH0335599B2 (en) | 1991-05-28 |
Family
ID=16072724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57179835A Granted JPS5969693A (en) | 1982-10-15 | 1982-10-15 | Heat accumulating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5969693A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6091194A (en) * | 1983-10-25 | 1985-05-22 | Matsushita Electric Ind Co Ltd | heat storage device |
| DE102011101858A1 (en) * | 2011-05-18 | 2012-11-22 | Robert Bosch Gmbh | Method for determining a heat energy stored in a latent heat storage with a phase change material and method for controlling a heating / air conditioning |
| US9964351B2 (en) * | 2011-07-12 | 2018-05-08 | Sharp Kabushiki Kaisha | Cooling equipment, temperature control system, air conditioning system, and hot water supply system for the same |
| DE102012025192A1 (en) * | 2012-12-10 | 2014-06-12 | Va-Q-Tec Ag | Method and apparatus for the preconditioning of latent heat storage elements |
| JP7059062B2 (en) * | 2018-03-22 | 2022-04-25 | 株式会社東芝 | Heat storage material temperature detector and heat storage device |
| JP7602356B2 (en) * | 2020-12-03 | 2024-12-18 | 株式会社日本クライメイトシステムズ | Heat storage device |
-
1982
- 1982-10-15 JP JP57179835A patent/JPS5969693A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5969693A (en) | 1984-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE377184T1 (en) | DEVICE FOR MEASURING A MEDIUM FLOW | |
| DE69014710D1 (en) | Measurement of the mass of a liquid in a container. | |
| GB1330624A (en) | Thermal indicator | |
| CN205496544U (en) | Metal melt ration feeder | |
| EP0836060A3 (en) | Absorption over-concentration control | |
| WO1992020006A3 (en) | Thermal mass flow sensor | |
| JPS5969693A (en) | Heat accumulating device | |
| US3965848A (en) | Fever indicator | |
| ES8505104A1 (en) | Heat-flow meter for monitoring heat-generating materials within a container. | |
| JPH0351668Y2 (en) | ||
| Milanez et al. | Solidification in spheres, theoretical and experimental investigation | |
| JPS5684520A (en) | Water-level detector of nuclear reactor | |
| JPS5844194B2 (en) | Chikunetsuriyousokuteihouhou | |
| JPS59125392A (en) | Measuring device for accumulating and radiating quantity of heat | |
| JPS60147610A (en) | Detection of solidifying amount of liquid solidifying device | |
| CN223077690U (en) | Liquid level and temperature integrated sensor | |
| GUDKOV et al. | Level and density sensors using pneumatic repeaters | |
| JPS58110946A (en) | Method of detecting volume of hot water in hot-water storage type hot-water supplying apparatus | |
| JPH061093Y2 (en) | Electric water heater | |
| JPS5836035Y2 (en) | thermometer | |
| CN201115727Y (en) | Temperature measuring feeding bottle | |
| JPS60242327A (en) | Water thermometer for fishing | |
| JPS54142644A (en) | Solidification-disposing device | |
| JPS6318903Y2 (en) | ||
| KR100568082B1 (en) | Sensing system to detect the content of low temperature material |