JPH01159572A - Cold accumulation agent - Google Patents
Cold accumulation agentInfo
- Publication number
- JPH01159572A JPH01159572A JP62317060A JP31706087A JPH01159572A JP H01159572 A JPH01159572 A JP H01159572A JP 62317060 A JP62317060 A JP 62317060A JP 31706087 A JP31706087 A JP 31706087A JP H01159572 A JPH01159572 A JP H01159572A
- Authority
- JP
- Japan
- Prior art keywords
- aqueous solution
- cold storage
- inorganic salt
- storage agent
- freezing temperature
- 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
Links
- 238000009825 accumulation Methods 0.000 title 1
- 239000007864 aqueous solution Substances 0.000 claims abstract description 64
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000011232 storage material Substances 0.000 claims abstract description 27
- 238000007710 freezing Methods 0.000 claims abstract description 26
- 230000008014 freezing Effects 0.000 claims abstract description 26
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 37
- 150000003839 salts Chemical class 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 28
- 239000002184 metal Substances 0.000 abstract description 28
- 239000003507 refrigerant Substances 0.000 abstract description 17
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 14
- 239000011780 sodium chloride Substances 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000003094 microcapsule Substances 0.000 abstract 4
- 230000001143 conditioned effect Effects 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 9
- 230000004927 fusion Effects 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 4
- 239000012266 salt solution Substances 0.000 description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- -1 copper or aluminum Chemical class 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 235000010333 potassium nitrate Nutrition 0.000 description 2
- 239000004323 potassium nitrate Substances 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- 239000004317 sodium nitrate Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 235000011148 calcium chloride Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 235000011147 magnesium chloride Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 238000010257 thawing Methods 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
- F28D20/026—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat with different heat storage materials not coming into direct contact
-
- 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
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、融解潜熱を利用する蓄冷剤の改良に関する
。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention relates to improvements in cold storage agents that utilize latent heat of fusion.
（従来の技術）
蓄冷剤は、凍結状態から融解する際の融解潜熱を利用し
て周囲のものを長時間に亙って冷却するもので、種々の
分野で用いられている。(Prior Art) A cold storage agent cools surrounding objects for a long time by utilizing the latent heat of fusion when thawing from a frozen state, and is used in various fields.
従来より用いられている蓄冷剤には、大別して二つのも
のがある。その一つは、塩化ナトリウム、硝酸カリウム
、硝酸ナトリウム等の無機塩の一種または数種を、所定
の凍結温度となるように水に溶かして調製した水溶液か
らなるもの、また他の一つは、メタノール、エタノール
、エチレングリコール等のアルコールを、所定の凍結温
度となるように水に溶かして調製した水溶液からなるも
のである。There are two types of cold storage agents that have been used in the past. One is an aqueous solution prepared by dissolving one or more inorganic salts such as sodium chloride, potassium nitrate, and sodium nitrate in water to a predetermined freezing temperature, and the other is methanol. It consists of an aqueous solution prepared by dissolving alcohol such as ethanol, ethylene glycol, etc. in water to a predetermined freezing temperature.
（発明が解決しようとする問題点）
しかしながら、前者の無機塩水溶液からなる蓄冷剤は、
金属腐食性が大きく、銅またはアルミニウム等の金属と
接触するとその金属を腐食するため、金属製の管または
容器には使用できない問題がある。また、後者のアルコ
ール水溶液からなる蓄冷剤にあっては、金属腐食性が無
機塩水溶液からなる蓄冷剤に比べてはるかに小さく、金
属製の管等に対しても使用しうるものの、無機塩水溶液
の蓄冷剤に比べて融解潜熱が小さく、低温を長時間維持
できない問題がある。(Problems to be solved by the invention) However, the former cold storage agent made of an aqueous inorganic salt solution,
It is highly corrosive to metals, such as copper or aluminum, and corrodes those metals when it comes in contact with them, so it cannot be used in metal pipes or containers. In addition, the latter cold storage agent made of an aqueous alcohol solution has much lower metal corrosiveness than a cold storage agent made of an aqueous inorganic salt solution, and can be used for metal pipes, etc. The problem is that the latent heat of fusion is smaller than that of cold storage agents, making it impossible to maintain low temperatures for long periods of time.
この発明は前記の問題点を解決し、金属製の管または容
器等に対しても使用でき、しかも低温を長時間維持しう
る蓄冷剤を提供しようとするものである。The present invention aims to solve the above-mentioned problems and provide a cold storage agent that can be used in metal pipes or containers, and can maintain low temperatures for long periods of time.
（問題点を解決するための手段）
この発明の要旨とするところは、所定の凍結温度に調製
した一種または二種以上の無機塩からなる水溶液を、一
つまたは二以上の不透水性の小袋に収納し、その無機塩
水溶液収納後の小袋を、前記無機塩水溶液の凍結温度以
下の凍結温度を有するアルコール水溶液中に分散してな
ることを特徴とする蓄冷剤にある。(Means for Solving the Problems) The gist of the present invention is to store an aqueous solution of one or more inorganic salts prepared at a predetermined freezing temperature in one or more water-impermeable sachets. The cold storage agent is characterized in that the sachets containing the inorganic salt aqueous solution are dispersed in an alcohol aqueous solution having a freezing temperature lower than the freezing temperature of the inorganic salt aqueous solution.
（作 用）
不透水性の小袋に収納された無機塩水溶液は、融解潜熱
が大きく、その融解潜熱により蓄冷剤全体の温度を長時
間に互って低温に維持する。またその無機塩水溶液を収
納する不透水性の小袋により、金属腐食性の大なる無機
塩水溶液が金属管または金属容器等の壁に直接触れるの
を防ぎ、金属管または容器等の腐食を押さえる。一方ア
ルコール水溶液は、金属管または容器等の壁と前記小袋
間を隙間なく満たし、小袋内の無機塩水溶液と金属管ま
たは容器の壁との間における熱の伝達を良好にして、蓄
冷剤１０使・用時に小袋１４内の無機塩水溶液の凍結時
間を短くするとともに、その凍結した無機塩水溶液の融
解潜熱による外部熱の吸収を良好にする。(Function) The inorganic salt aqueous solution stored in the water-impermeable pouch has a large latent heat of fusion, and this latent heat of fusion maintains the temperature of the entire cold storage agent at a low temperature for a long time. In addition, the water-impermeable pouch containing the inorganic salt aqueous solution prevents the metal-corrosive inorganic salt aqueous solution from directly touching the wall of the metal pipe or metal container, thereby suppressing corrosion of the metal pipe or container. On the other hand, the alcohol aqueous solution fills the gap between the wall of the metal tube or container, etc. and the sachet, and improves the heat transfer between the inorganic salt aqueous solution in the sachet and the wall of the metal tube or container. - Shorten the freezing time of the inorganic salt aqueous solution in the pouch 14 during use, and improve the absorption of external heat by the latent heat of fusion of the frozen inorganic salt aqueous solution.
（実施例） 以下この発明を、より具体的に説明する。(Example) This invention will be explained in more detail below.
第１図は、この発明の蓄冷剤１０を用いて金属冷媒管１
２を冷却する際の断面図で、１３は金属冷媒管１２の周
囲を包囲する容器、また１５は金属冷媒管１２内を流れ
る冷媒である。FIG. 1 shows a metal refrigerant pipe 1 using the regenerator 10 of the present invention.
2, 13 is a container surrounding the metal refrigerant pipe 12, and 15 is a refrigerant flowing inside the metal refrigerant pipe 12.
まずその蓄冷剤１０の構成について説明する。蓄冷剤１
０は、不透水性の小袋１４に無機塩水溶液を封入し、そ
の小袋１４をアルコール水溶液１６に分散したもので、
外部からの冷却によりアルコール水溶液１６及び小袋１
４内の無機塩水溶液を凍結させて使用される。First, the configuration of the cool storage agent 10 will be explained. Cold storage agent 1
0, an inorganic salt aqueous solution is sealed in a water-impermeable pouch 14, and the pouch 14 is dispersed in an alcohol aqueous solution 16.
Alcohol aqueous solution 16 and sachet 1 by external cooling
The inorganic salt aqueous solution in 4 is frozen and used.
不透水性の小袋１４は、金属腐食性の高い無機塩水溶液
が金属冷媒管１２の壁と接触しないようにするためのも
ので、ポリエチレン等のプラスチックフィルムから形成
されたものが好適である。その小袋１４の大きさは、金
属冷媒管１２と容器１３の壁との間隔、および小袋１４
内の無機塩水溶液の凍結速度等を考慮して決められる。The water-impermeable pouch 14 is used to prevent the aqueous inorganic salt solution, which is highly corrosive to metals, from coming into contact with the wall of the metal refrigerant pipe 12, and is preferably made of a plastic film such as polyethylene. The size of the pouch 14 is determined by the distance between the metal refrigerant pipe 12 and the wall of the container 13, and the size of the pouch 14.
It is determined by taking into account the freezing rate of the inorganic salt aqueous solution inside.
その理由は、小袋１４が大きすぎると金属冷媒管１２と
容器１３の間に入らなくなるからであり、また蓄冷剤１
０使用時、外部からの冷却により小袋１４内の無機塩水
溶液を凍結させる際、その無機塩水溶液の冷却及び凍結
が、小袋１４周囲にあるアルコール水溶液１６による熱
の伝達によって行われるなめ、小袋１４が大きいと小袋
１４内のほぼ中央にある無機塩水溶液と小袋１４外のア
ルコール水溶液１６との距離が大になり、小袋１４内中
央の無機塩水溶液の凍結時間が長くなるからである。か
かる理由により、通常小袋１４の大きさは、無機塩水溶
液の封入量が０．１〜１００ｇ、好ましくは０．１〜２
ｇとなるようにし、金属冷媒管１２と容器１３の間に収
容する無機塩水溶液の量により小袋１４の数を調整する
。The reason for this is that if the pouch 14 is too large, it will not fit between the metal refrigerant pipe 12 and the container 13, and the refrigerant 1
0, when the inorganic salt aqueous solution in the pouch 14 is frozen by external cooling, the cooling and freezing of the inorganic salt aqueous solution is performed by heat transfer by the alcohol aqueous solution 16 around the pouch 14. This is because if is large, the distance between the inorganic salt aqueous solution located approximately at the center of the pouch 14 and the alcohol aqueous solution 16 outside the pouch 14 becomes large, and the freezing time of the inorganic salt aqueous solution located at the center of the pouch 14 becomes longer. For this reason, the size of the sachet 14 is such that the amount of inorganic salt aqueous solution sealed is 0.1 to 100 g, preferably 0.1 to 2 g.
g, and the number of pouches 14 is adjusted depending on the amount of the inorganic salt aqueous solution accommodated between the metal refrigerant pipe 12 and the container 13.
無機塩水溶液は、この蓄冷剤１０を長時間低温に維持す
るためのもので、その無機塩水溶液の凍結温度が所定温
度となるように、一つまたは二種以上の無機塩を適宜選
択しそれらの所定量を水に溶かして調製したものである
。無機塩としては、塩化ナトリウム、塩化アンモニウム
、塩化マグネシウム、塩化カルシウム、硝酸カリウム、
硝酸ナトリウム等が用いられる。The inorganic salt aqueous solution is used to maintain the cold storage agent 10 at a low temperature for a long period of time, and one or more types of inorganic salts are appropriately selected and mixed so that the freezing temperature of the inorganic salt aqueous solution becomes a predetermined temperature. It is prepared by dissolving a predetermined amount of in water. Inorganic salts include sodium chloride, ammonium chloride, magnesium chloride, calcium chloride, potassium nitrate,
Sodium nitrate etc. are used.
またアルコール水溶液１６は、金属冷媒管１２と容器Ｉ
３の間で小袋１４間を満たして小袋１４内の無機塩水溶
液と金属冷媒管１２および容器１３との間の熱の伝達効
率を向上させるとともに、そのアルコール水溶液１６自
体の融解潜熱をも利用して蓄冷作用を向上させようとす
るものである。アルコールとしては、メタノール、エタ
ノール、エチレングリコール、プロピレングリコール、
グリセロール等の中から、アルコール水溶液１６の凍結
温度が前記小袋１４内の無機塩水溶液の凍結温度以下と
なるように選択され、水との混合量も決められる。アル
コール水溶液１６の凍結温度を小袋１４内の無機塩水溶
液の凍結温度以下とする理由は、蓄冷剤の使用時に外部
からの冷却により小袋１４内の無機塩水溶液を凍結させ
る際、アルコール水溶液の凍結温度が小袋内の無機塩水
溶液の凍結温度よりも高いと、アルコール水溶液が小袋
内の無機塩水溶液よりも早く凍結し、その後アルコール
水溶液中において熱の対流が生じなくなり熱伝達効率が
極度に低下するため、小袋内の無機塩水溶液の凍結に長
時間を費やすことになるからである。通常アルコール水
溶液の凍結温度は、小袋内の無機塩水溶液の凍結温度よ
りも０〜５℃低くするのが好ましい。また蓄冷剤１０に
おける無機塩水溶液の全重量とアルコール水溶液の全重
量との比は、アルコール水容液１６が小袋１４の周囲を
隙間なく満たすことができる範囲で定められ、通常、無
機塩水溶液：アルコール水溶液＝９９：１〜１０：９０
、好ましくは蓄冷剤全体の融解潜熱を大きくするため９
９：１〜５０ ： ５０の範囲とされる。Further, the alcohol aqueous solution 16 is connected to the metal refrigerant pipe 12 and the container I.
3 fills the space between the sachets 14 to improve the heat transfer efficiency between the inorganic salt aqueous solution in the sachet 14 and the metal refrigerant pipe 12 and container 13, and also utilizes the latent heat of fusion of the alcohol aqueous solution 16 itself. This aims to improve the cold storage effect. Alcohols include methanol, ethanol, ethylene glycol, propylene glycol,
Glycerol and the like are selected so that the freezing temperature of the alcohol aqueous solution 16 is lower than the freezing temperature of the inorganic salt aqueous solution in the sachet 14, and the amount of mixing with water is also determined. The reason why the freezing temperature of the alcohol aqueous solution 16 is set to be lower than the freezing temperature of the inorganic salt aqueous solution in the pouch 14 is that when the inorganic salt aqueous solution in the pouch 14 is frozen by external cooling when the cold storage agent is used, the freezing temperature of the alcohol aqueous solution is If is higher than the freezing temperature of the inorganic salt aqueous solution in the sachet, the alcohol aqueous solution will freeze faster than the inorganic salt aqueous solution in the sachet, and then heat convection will no longer occur in the alcohol aqueous solution, resulting in an extremely low heat transfer efficiency. This is because it takes a long time to freeze the inorganic salt aqueous solution in the sachet. Usually, the freezing temperature of the alcohol aqueous solution is preferably 0 to 5°C lower than the freezing temperature of the inorganic salt aqueous solution in the sachet. Further, the ratio of the total weight of the inorganic salt aqueous solution to the total weight of the alcohol aqueous solution in the cold storage agent 10 is determined within a range that allows the alcohol aqueous liquid 16 to fill the circumference of the pouch 14 without any gaps, and usually, the inorganic salt aqueous solution: Alcohol aqueous solution = 99:1 to 10:90
, preferably 9 to increase the latent heat of fusion of the entire cold storage agent.
The range is 9:1 to 50:50.
なお、この例では金属冷媒管１２の周囲を包囲する容器
１３内に蓄冷剤１０を収容する場合についてのみ図示し
たが、かかる場合に限るものではない。In this example, only the case where the cool storage agent 10 is housed in the container 13 surrounding the metal refrigerant pipe 12 is illustrated, but the present invention is not limited to this case.
次ぎに、この発明に係る蓄冷剤１０の一実施例について
示し、更にその一実施例と下記に示す従来例および比較
例からなる蓄冷剤の融解曲線を第２図に示す。なおその
融解曲線は、各々の蓄冷剤を発泡スチロール製の容器に
充填して一４０℃で凍結させ、その後外気温を３５℃に
維持して、容器中央 ６に装置した熱電対によって蓄冷
剤の温度を時間経過とともに測定したものである。Next, an example of the cold storage agent 10 according to the present invention will be shown, and FIG. 2 shows melting curves of the cold storage agents of the example, a conventional example, and a comparative example shown below. The melting curve was determined by filling each type of regenerator into a Styrofoam container, freezing it at -40°C, then maintaining the outside temperature at 35°C, and measuring the temperature of the refrigerant using a thermocouple installed in the center of the container. was measured over time.
◎この発明の実施例
・不透水性の小袋の材質：
厚み３０μの低密度ポリエチレンフィルム・無機塩水溶
液：
塩化ナトリウム１６ｇ、硝酸アンモニウム１６ｇおよび
水ｉｏｏ ｇからなる水溶液を小袋に約１ｇずつ封入し
、その水溶液を全量でｔｏｏ ｇ使用。◎Example of this invention - Material of water-impermeable pouch: 30μ thick low-density polyethylene film - Inorganic salt aqueous solution: Approximately 1 g of an aqueous solution consisting of 16 g of sodium chloride, 16 g of ammonium nitrate, and 10 g of water was sealed in each pouch, and the Use too much of the aqueous solution.
・アルコール水溶液：
グリセロール５５ｇと、水４５ｇからなる水溶液を１０
０ｇ使用。・Alcohol aqueous solution: 10 g of an aqueous solution consisting of 55 g of glycerol and 45 g of water.
Use 0g.
◎従来例１
塩化ナトリウムｌａｇと硝酸アンモニウム１６ｇを１０
０ｇの水に溶かした水溶液を、２００ｇ用いてなる蓄冷
剤。◎Conventional example 1 Sodium chloride lag and ammonium nitrate 16g
A cold storage agent made using 200g of an aqueous solution dissolved in 0g of water.
◎従来例２
グリセロール５５ｇと水４５ｇを混合した水溶液を２０
０ｇ用いてなる蓄冷剤。◎Conventional Example 2 An aqueous solution of 55 g of glycerol and 45 g of water was mixed with 20 g of water.
Cold storage agent using 0g.
◎比較例
前記実施例において無機塩水溶液を小袋に封入すること
なくアルコール水溶液と混合してなる蓄冷剤。◎Comparative Example A cold storage agent prepared by mixing the inorganic salt aqueous solution with an alcohol aqueous solution without enclosing it in a pouch in the above example.
第２図の融解曲線より明らかな如く、この発明の実施例
である蓄冷剤は、従来例１の蓄冷剤（無機塩水溶液から
なる蓄冷剤）に次いで低温状態を長く維持しうるちので
、蓄冷機能に優れるものである。As is clear from the melting curve in FIG. 2, the cold storage agent according to the embodiment of the present invention can maintain a low temperature state for a long time, second only to the cold storage agent of Conventional Example 1 (the cold storage agent made of an aqueous inorganic salt solution). It has excellent functionality.
また、前記の容器内に銅およびアルミニウム板を収容し
て各蓄冷剤による金属腐食性を調べたところ、この発明
の実施例および従来例２の蓄冷剤については銅板および
アルミニウム板に錆を生じなかったが、従来例１と比較
例の蓄冷剤については銅板およびアルミニウム板に錆が
発生し、特に銅板については著しい剥落も生じていた。Furthermore, when copper and aluminum plates were housed in the container and the metal corrosion caused by each cold storage agent was investigated, it was found that the cold storage agents of the embodiment of the present invention and conventional example 2 did not cause rust on the copper plates and aluminum plates. However, regarding the cold storage agents of Conventional Example 1 and Comparative Example, rust occurred on the copper plates and aluminum plates, and in particular, significant peeling occurred on the copper plates.
（発明の効果）
この発明の蓄冷剤は前記の構成からなるため、金属と接
触してもその金属を腐食することがなく、従来では使用
できなかった冷蔵庫または冷凍庫の金属製冷媒管に対し
ても長期に互って使用することができる。しかも蓄冷機
能（低温維持機能）に優れるため、長時間に亙って冷却
できる効果がある。また、無機塩およびアルコールの種
類、量を選択することにより、用途に応じた最適の融解
温度、すなわち冷却温度を得ることができる効果もある
。(Effects of the Invention) Since the refrigerant of the present invention has the above-described structure, it does not corrode metal even when it comes into contact with metal, and can be used in metal refrigerant pipes of refrigerators or freezers, which could not be used conventionally. They can also be used together for a long time. Moreover, it has an excellent cold storage function (low temperature maintenance function), so it has the effect of being able to cool down for a long time. Furthermore, by selecting the type and amount of the inorganic salt and alcohol, it is possible to obtain the optimum melting temperature, that is, the cooling temperature, depending on the application.
第１図はこの発明の蓄冷剤の使用時を示す断面図、第２
図は実施例、従来例および比較例の蓄冷剤に関する融解
曲線である。
１４：小袋、１６：アルコール水溶液Fig. 1 is a sectional view showing the cold storage agent of the present invention when it is used;
The figure shows melting curves for cold storage agents of Examples, Conventional Examples, and Comparative Examples. 14: Sachet, 16: Alcohol aqueous solution
Claims (1)
からなる水溶液を、一つまたは二以上の不透水性の小袋
に収納し、その無機塩水溶液収納後の小袋を、前記無機
塩水溶液の凍結温度以下の凍結温度を有するアルコール
水溶液中に分散してなることを特徴とする蓄冷剤。An aqueous solution consisting of one or more inorganic salts prepared to a predetermined freezing temperature is stored in one or more water-impermeable pouches, and the pouches containing the inorganic salt aqueous solution are A cold storage agent characterized in that it is dispersed in an alcohol aqueous solution having a freezing temperature below freezing temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62317060A JP2594801B2 (en) | 1987-12-15 | 1987-12-15 | Cool storage agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62317060A JP2594801B2 (en) | 1987-12-15 | 1987-12-15 | Cool storage agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01159572A true JPH01159572A (en) | 1989-06-22 |
| JP2594801B2 JP2594801B2 (en) | 1997-03-26 |
Family
ID=18083972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62317060A Expired - Fee Related JP2594801B2 (en) | 1987-12-15 | 1987-12-15 | Cool storage agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2594801B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03174485A (en) * | 1989-12-04 | 1991-07-29 | Nippon Etanoole Kk | Cooling energy storage material |
| GB2394031A (en) * | 2001-02-02 | 2004-04-14 | Thomas Philip Noel | Heat transfer apparatus using two seperated liquids within a container |
| KR20040032540A (en) * | 2002-10-10 | 2004-04-17 | 토마스 피. 노엘 | Apparatus for abstracting heat with a solid--liquid matrix utilizing a kinetic--circulation--kinetic heat transfer cycle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101435025B1 (en) * | 2012-01-20 | 2014-08-28 | 정성록 | Multi Coldness-Storaged Material |
| KR101697193B1 (en) * | 2016-05-27 | 2017-01-17 | 이우영 | Protecting device for wire |
-
1987
- 1987-12-15 JP JP62317060A patent/JP2594801B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03174485A (en) * | 1989-12-04 | 1991-07-29 | Nippon Etanoole Kk | Cooling energy storage material |
| GB2394031A (en) * | 2001-02-02 | 2004-04-14 | Thomas Philip Noel | Heat transfer apparatus using two seperated liquids within a container |
| KR20040032540A (en) * | 2002-10-10 | 2004-04-17 | 토마스 피. 노엘 | Apparatus for abstracting heat with a solid--liquid matrix utilizing a kinetic--circulation--kinetic heat transfer cycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2594801B2 (en) | 1997-03-26 |
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