JPH0875319A - Refrigerating device - Google Patents
Refrigerating deviceInfo
- Publication number
- JPH0875319A JPH0875319A JP23070094A JP23070094A JPH0875319A JP H0875319 A JPH0875319 A JP H0875319A JP 23070094 A JP23070094 A JP 23070094A JP 23070094 A JP23070094 A JP 23070094A JP H0875319 A JPH0875319 A JP H0875319A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- refrigerating
- desiccant
- accumulator
- capillary tube
- 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
- 239000003507 refrigerant Substances 0.000 claims abstract description 37
- 239000002274 desiccant Substances 0.000 claims abstract description 30
- 239000010687 lubricating oil Substances 0.000 claims abstract description 13
- 150000002148 esters Chemical class 0.000 claims abstract description 10
- 239000010721 machine oil Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001704 evaporation Methods 0.000 claims abstract description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000002808 molecular sieve Substances 0.000 claims description 6
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical group [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000006866 deterioration Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 abstract description 4
- 238000010298 pulverizing process Methods 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 description 19
- 238000009835 boiling Methods 0.000 description 7
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 4
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 4
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 4
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
Landscapes
- Treatment Of Liquids With Adsorbents In General (AREA)
- Lubricants (AREA)
- Compressor (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は冷凍装置に関するもので
あり、さらに詳しくはオゾン層を破壊する危険がなく、
不燃性であるＨＦＣ系冷媒（「新代替物質」と呼ばれて
いるフロン）などを使用した冷凍装置において、冷凍機
油の劣化を抑えてキャピラリーチューブの詰まりを防止
し長期に亘り安定して運転することを可能にした冷凍装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerating device, and more specifically, there is no danger of destroying the ozone layer,
In refrigeration equipment that uses non-flammable HFC refrigerants (CFCs called "new alternative materials"), etc., suppress deterioration of refrigeration oil, prevent clogging of capillary tubes, and operate stably for a long time The present invention relates to a refrigerating device that makes it possible.
【０００２】[0002]
【従来の技術】従来、冷凍機の冷媒として用いられてい
るものはジクロロジフルオロメタン（以下Ｒ−１２とい
う）や共沸混合冷媒のＲ−１２と１，１−ジフルオロエ
タン（Ｒ−１５２ａ）とからなるＲ−５００が多い。Ｒ
−１２の沸点は大気圧で−２９．６５℃で、Ｒ５００の
沸点は−３３．４５℃であり、通常の冷凍装置に好適で
あり、Ｒ−１２などのＣＦＣ系冷媒と相溶性のある鉱物
油やアルキルベンゼン系油等の冷凍機油を使用した冷凍
サイクルは、信頼性、耐久性などの高い品質レベルに至
っている。2. Description of the Related Art Conventionally, a refrigerant used in a refrigerator is composed of dichlorodifluoromethane (hereinafter referred to as R-12) or an azeotropic mixed refrigerant R-12 and 1,1-difluoroethane (R-152a). There are many R-500s. R
The boiling point of −12 is −29.65 ° C. at atmospheric pressure, and the boiling point of R500 is −33.45 ° C., which is suitable for a normal refrigeration system and is a mineral compatible with a CFC-based refrigerant such as R-12. Refrigeration cycles that use refrigerating machine oils such as oils and alkylbenzene-based oils have reached high quality levels such as reliability and durability.
【０００３】しかしながら、上記の各冷媒は、その高い
オゾン破壊の潜在性により、大気中に放出されて地球上
空のオゾン層に到達すると、このオゾン層を破壊する。
このオゾン層の破壊は冷媒中の塩素基（Ｃｌ）により引
き起こされる。そこで、この塩素基の含有量の少ない冷
媒、例えはクロロジフルオロメタン（ＨＣＦＣ−２２、
以下Ｒ−２２という）、塩素基を含まない冷媒、例えは
ジフルオロメタン（ＨＦＣ−３２、以下Ｒ−３２とい
う）、ペンタフルオロエタン（ＨＦＣ−１２５、以下Ｒ
−１２５という）や１，１，１，２−テトラフルオロエ
タン（ＨＦＣ−１３４ａ、以下Ｒ−１３４ａという）、
あるいはこれらの混合物がこれらの代替冷媒として考え
られている。このＲ−２２の沸点は、大気圧で−４０．
８２で、Ｒ−３２の沸点は、−５１．７℃で、Ｒ−１２
５の沸点は、−４８．５℃、Ｒ−１３４ａの沸点は、−
２６．５℃である。However, due to their high ozone depletion potential, each of the above refrigerants destroys the ozone layer when it reaches the ozone layer above the earth by being released into the atmosphere.
The destruction of the ozone layer is caused by chlorine groups (Cl) in the refrigerant. Therefore, a refrigerant with a low chlorine group content, such as chlorodifluoromethane (HCFC-22,
R-22), a chlorine-free refrigerant, such as difluoromethane (HFC-32, hereinafter R-32), pentafluoroethane (HFC-125, hereinafter R).
-125) or 1,1,1,2-tetrafluoroethane (HFC-134a, hereinafter R-134a),
Alternatively, mixtures of these are considered as alternative refrigerants for these. The boiling point of R-22 is -40.
82, the boiling point of R-32 is −51.7 ° C., and the boiling point of R-12 is −12.
5 has a boiling point of −48.5 ° C., and R-134a has a boiling point of −
It is 26.5 ° C.
【０００４】図３に従来の冷凍装置の冷凍回路の例を示
す。１は圧縮機、２は凝縮器、３はドライヤ、４はキャ
ピラリーチューブ、５は蒸発器、６’はアキュムレータ
ー、矢印は冷媒の流れ方向を示す。ドライヤ３はキャピ
ラリーチューブ４の前に設けられているので、ドライヤ
３中に冷凍回路中の水分を除去するために充填されてい
るモレキュラーシーブ粒状乾燥剤などが、運転中の振
動、摩擦、衝撃などにより微粉化し、その微粉がキャピ
ラリーチューブ４に容易に流入して、キャピラリーチュ
ーブ４を詰まらせたり、圧縮機の摺動部を傷つけたり、
摩擦抵抗を上げたり、摩耗するなどの問題がある。FIG. 3 shows an example of a refrigeration circuit of a conventional refrigeration system. Reference numeral 1 is a compressor, 2 is a condenser, 3 is a dryer, 4 is a capillary tube, 5 is an evaporator, 6'is an accumulator, and arrows indicate the flow direction of the refrigerant. Since the dryer 3 is provided in front of the capillary tube 4, the molecular sieve granular desiccant or the like filled in the dryer 3 to remove the water in the refrigeration circuit is subject to vibration, friction, shock, etc. during operation. And the fine powder easily flows into the capillary tube 4 to clog the capillary tube 4 or damage the sliding part of the compressor.
There are problems such as increased friction resistance and wear.
【０００５】ＨＦＣ系冷媒に対して使用される冷凍機油
は、ＨＦＣ系冷媒と相溶性の少ない鉱物油やアルキルベ
ンゼン系油等、あるいはＨＦＣ系冷媒と相溶性のあるエ
ステル系潤滑油、エーテル系潤滑油、それらの混合油な
どがある。ＨＦＣ系冷媒とエステル系潤滑油などを用い
た冷凍装置の場合はエステル系潤滑油などが加水分解し
て劣化するなどのために、キャピラリチューブ４の主に
入口サイドに流量抵抗の変動を発生させる程度の推積物
（スラッジ）が発生し、長期に亘り安定して運転できな
い欠点がある。Refrigerating machine oils used for HFC-based refrigerants are mineral oils and alkylbenzene-based oils which are less compatible with HFC-based refrigerants, or ester-based lubricating oils and ether-based lubricating oils compatible with HFC-based refrigerants. , Mixed oils of them. In the case of a refrigerating apparatus using an HFC-based refrigerant and an ester-based lubricating oil or the like, the ester-based lubricating oil or the like is hydrolyzed and deteriorates, so that the flow rate resistance is changed mainly at the inlet side of the capillary tube 4. There is a drawback that a certain amount of sludge is generated and stable operation cannot be performed for a long period of time.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、乾燥剤の微
粉化に起因するキャピラリーチューブの詰まり、圧縮機
の摺動部の摩耗などをなくし、しかもエステル系潤滑油
などを用いた場合でもその劣化を防止して、キャピラリ
チューブの入口サイドにスラッジが推積するのをなく
し、長期に亘り安定して運転することを可能にした冷凍
装置を提供することを目的とする。DISCLOSURE OF THE INVENTION The present invention eliminates clogging of a capillary tube due to pulverization of a desiccant, wear of a sliding part of a compressor, and the like even when an ester type lubricating oil is used. An object of the present invention is to provide a refrigerating device which prevents deterioration and prevents sludge from accumulating on the inlet side of a capillary tube and enables stable operation for a long period of time.
【０００７】[0007]
【課題を解決するための手段】本発明は上記の課題を解
決すべく研究を重ねた結果、従来のドライヤを用いずモ
レキュラーシーブ粒状乾燥剤などの乾燥剤をアキュムレ
ータ中に入れて使用することにより課題を解決できるこ
とを見いだし、本発明を完成するに至った。The present invention has been studied to solve the above-mentioned problems, and as a result, by using a desiccant such as a molecular sieve granular desiccant in an accumulator without using a conventional dryer, The inventors have found that the problems can be solved and completed the present invention.
【０００８】本発明の請求項１の発明は、冷媒を凝縮液
化する凝縮器、キャピラリーチューブ、液化冷媒を蒸発
させる蒸発器、アキュムレータおよび蒸発気化した冷媒
を圧縮して凝縮器に吐出する圧縮機などを備え、冷凍機
油を用いる冷凍装置において、冷凍回路中の水分を除去
するための乾燥剤を該アキュムレータ中に充填したこと
を特徴とする冷凍装置である。According to the first aspect of the present invention, a condenser for condensing and liquefying a refrigerant, a capillary tube, an evaporator for evaporating a liquefied refrigerant, an accumulator, and a compressor for compressing the evaporated and vaporized refrigerant and discharging it to the condenser, etc. In a refrigerating apparatus using a refrigerating machine oil, a desiccant for removing water in a refrigerating circuit is filled in the accumulator.
【０００９】本発明の請求項２の発明は、冷媒がＨＦＣ
系冷媒あるいはＨＦＣ系冷媒を主体とする冷媒である請
求項１記載の冷凍装置である。According to a second aspect of the present invention, the refrigerant is HFC.
The refrigerating apparatus according to claim 1, wherein the refrigeration apparatus is a refrigerant mainly composed of a system refrigerant or an HFC system refrigerant.
【００１０】本発明の請求項３の発明は、冷凍機油がエ
ステル系潤滑油、エーテル系潤滑油あるいはこれらの混
合物である請求項１あるいは請求項２記載の冷凍装置で
ある。A third aspect of the present invention is the refrigerating apparatus according to the first or second aspect, wherein the refrigerating machine oil is an ester type lubricating oil, an ether type lubricating oil or a mixture thereof.
【００１１】本発明の請求項４の発明は、該乾燥剤がモ
レキュラーシーブ粒状乾燥剤である請求項１ないし請求
項３記載の冷凍装置である。たドライヤである請求項１
ないし請求項３記載の冷凍装置である。A fourth aspect of the present invention is the refrigerating apparatus according to the first to third aspects, wherein the desiccant is a molecular sieve granular desiccant. It is a dry dryer.
To the refrigeration apparatus according to claim 3.
【００１２】[0012]
【作用】本発明においては、冷凍回路中においてドライ
ヤをキャピラリーチューブの前に設けない。乾燥剤はア
キュムレータ中に充填して用いる。従って、本発明にお
いてアキュムレータは、従来のドライヤと本来のアキュ
ムレータの両方の役割を果す。アキュムレータ中に充填
された乾燥剤は冷凍回路中の水分を除去するという本来
の役割を果すが、振動や衝撃を受け難いので微粉化し難
く、また微粉化してもアキュムレータから冷凍回路中に
流出し難い。また、微粉化しても乾燥剤はキャピラリー
チューブから離れた位置にあるのでキャピラリーチュー
ブまで到達し難い。本発明において用いる乾燥剤は冷凍
回路中の水分を除去できるものであれば特に限定されな
い。本発明者の研究によると、エステル系潤滑油などの
冷凍機油の劣化の原因は冷凍回路中の水分を除去するた
めに使用されているモレキュラーシーブ粒状乾燥剤が微
粉化して、それが触媒的に作用することが劣化の主な原
因であることが判った。しかし、アキュムレータの温度
は低いので若し乾燥剤が微粉化したとしても微粉化した
乾燥剤が触媒的に作用する能力は低く、エステル系潤滑
油などの冷凍機油の劣化の原因とならない。In the present invention, the dryer is not provided in front of the capillary tube in the refrigeration circuit. The desiccant is used by filling it in an accumulator. Therefore, in the present invention, the accumulator acts as both a conventional dryer and an original accumulator. The desiccant filled in the accumulator plays the original role of removing the water in the refrigeration circuit, but it is difficult to pulverize because it is less susceptible to vibration and shock, and even if it is pulverized, it does not easily flow into the refrigeration circuit from the accumulator. . Further, even if it is pulverized, the desiccant is at a position apart from the capillary tube, so that it is difficult to reach the capillary tube. The desiccant used in the present invention is not particularly limited as long as it can remove water in the refrigeration circuit. According to the research conducted by the present inventor, the cause of deterioration of refrigerating machine oils such as ester-based lubricating oils is that the molecular sieve granular desiccant used for removing water in the refrigeration circuit is finely divided, and it is catalytically It has been found that working is the main cause of deterioration. However, since the temperature of the accumulator is low, even if the desiccant is pulverized, the ability of the pulverized desiccant to act catalytically is low, and does not cause deterioration of the refrigerating machine oil such as ester-based lubricating oil.
【００１３】[0013]
【実施例】以下、図１および図２により本発明の内容を
さらに具体的に説明するが、本発明はこれらの内容に何
ら限定されるものではない。図１に本発明の冷凍装置の
冷凍回路の例を示す。１は圧縮機、２は凝縮器、４はキ
ャピラリーチューブ、５は蒸発器、６はアキュムレータ
ー、矢印は冷媒の流れ方向を示す。本発明の冷凍装置の
冷凍回路においては図３に示した従来の冷凍装置の冷凍
回路中のドライヤ３を使用しない。EXAMPLES The contents of the present invention will be described more specifically below with reference to FIGS. 1 and 2, but the present invention is not limited to these contents. FIG. 1 shows an example of a refrigerating circuit of the refrigerating apparatus of the present invention. 1 is a compressor, 2 is a condenser, 4 is a capillary tube, 5 is an evaporator, 6 is an accumulator, and the arrow shows the flow direction of the refrigerant. In the refrigerating circuit of the refrigerating apparatus of the present invention, the dryer 3 in the refrigerating circuit of the conventional refrigerating apparatus shown in FIG. 3 is not used.
【００１４】図２は、本発明で用いるモレキュラーシー
ブ粒状乾燥剤などの乾燥剤１３が充填されているアキュ
ムレータ６の断面説明図である。冷媒はアキュムレータ
６の入口管７から入り、金網８を通過し、バッフル９の
通し穴１０を経て、アキュムレータ内部１１の下方の乾
燥剤１３が充填されている所に冷媒液として溜る。冷媒
液中の水分は乾燥剤１３により除去される。この冷媒液
は気化して内管１２の先端部１２ａから吸入され、端部
１２ｂから出て内管１２を介して圧縮機１の吸入口へ流
れ込み圧縮機１にて圧縮される。充填した乾燥剤１３の
上面を金属製ネット１４で覆っても差し支えない。矢印
は冷媒の流れ方向を示す。アキュムレータ６中に充填さ
れた乾燥剤１３は、振動や衝撃を受け難いので微粉化し
難い。また例え微粉化してもアキュムレータ６から冷凍
回路中に流出し難い。乾燥剤１３の充填量は特に限定さ
れない。通常、アキュムレータ６の高さｈの約１／３程
度で十分である。この乾燥剤１３の充填量は従来ドライ
ヤ３中に充填して使用していた乾燥剤の量と比較すると
約１／１０程度であり、冷媒中の水分を効率よく除去で
きることが判る。FIG. 2 is a sectional explanatory view of the accumulator 6 filled with the desiccant 13 such as the molecular sieve granular desiccant used in the present invention. Refrigerant enters from the inlet pipe 7 of the accumulator 6, passes through the wire mesh 8, passes through the through hole 10 of the baffle 9, and accumulates as a refrigerant liquid in the lower portion of the accumulator 11 where the desiccant 13 is filled. Water in the refrigerant liquid is removed by the desiccant 13. This refrigerant liquid is vaporized and sucked from the tip portion 12a of the inner pipe 12, flows out from the end portion 12b, flows into the suction port of the compressor 1 through the inner pipe 12, and is compressed by the compressor 1. The top surface of the filled desiccant 13 may be covered with the metal net 14. The arrow indicates the flow direction of the refrigerant. The desiccant 13 filled in the accumulator 6 is not easily subjected to vibration or impact, and thus is not easily pulverized. Even if it is pulverized, it does not easily flow out from the accumulator 6 into the refrigeration circuit. The filling amount of the desiccant 13 is not particularly limited. Usually, about 1/3 of the height h of the accumulator 6 is sufficient. The amount of the desiccant 13 filled is about 1/10 of the amount of the desiccant conventionally filled and used in the dryer 3, and it can be seen that the water in the refrigerant can be efficiently removed.
【００１５】[0015]
【発明の効果】本発明の冷凍装置は、乾燥剤の微粉化に
起因するキャピラリーチューブの詰まりや圧縮機の摺動
部の摩耗などをなくし、しかもエステル系潤滑油などを
用いた場合でもその劣化を防止して、キャピラリチュー
ブの入口サイドにスラッジが推積するのをなくし、長期
に亘り安定して運転することができる。本発明の冷凍装
置は簡単な構成からなるので経済的である上、効果が大
きいので産業上の利用価値が高い。The refrigerating apparatus of the present invention eliminates the clogging of the capillary tube and the abrasion of the sliding parts of the compressor due to the pulverization of the desiccant, and the deterioration thereof even when the ester lubricating oil is used. It is possible to prevent sludge from accumulating on the inlet side of the capillary tube and to operate stably for a long period of time. The refrigerating apparatus of the present invention is economical because it has a simple structure, and is highly effective, so that it has high industrial utility value.
【図１】 本発明の冷凍装置の冷凍回路の例である。FIG. 1 is an example of a refrigeration circuit of a refrigeration apparatus of the present invention.
【図２】 本発明で用いるアキュムレータの断面説明図
である。FIG. 2 is a cross-sectional explanatory view of an accumulator used in the present invention.
【図３】 従来の冷凍装置の冷凍回路の例である。FIG. 3 is an example of a refrigeration circuit of a conventional refrigeration system.
ｈ アキュムレータの高さ １ 圧縮機 ２ 凝縮器 ３ ドライヤ ４ キャピラリーチューブ ５ 蒸発器 ６、６’ アキュムレータ ７ 入口管 ８ 金網 ９ バッフル １０ 通し穴路 １１ アキュムレータ内部 １２ 内管 １３ 乾燥剤 １４ 金属製ネット h Height of accumulator 1 Compressor 2 Condenser 3 Dryer 4 Capillary tube 5 Evaporator 6, 6'Accumulator 7 Inlet tube 8 Wire mesh 9 Baffle 10 Through hole 11 Accumulator inside 12 Inner tube 13 Desiccant 14 Metal net
Claims (4)
ーチューブ、液化冷媒を蒸発させる蒸発器、アキュムレ
ータおよび蒸発気化した冷媒を圧縮して凝縮器に吐出す
る圧縮機などを備え、冷凍機油を用いる冷凍装置におい
て、冷凍回路中の水分を除去するための乾燥剤を該アキ
ュムレータ中に充填したことを特徴とする冷凍装置。1. A refrigerating machine using a refrigerating machine oil, comprising a condenser for condensing and liquefying a refrigerant, a capillary tube, an evaporator for evaporating a liquefied refrigerant, an accumulator, a compressor for compressing the evaporated and vaporized refrigerant and discharging it to a condenser, and the like. In the device, a refrigerating device characterized in that the accumulator is filled with a desiccant for removing water in the refrigerating circuit.
媒を主体とする冷媒である請求項１記載の冷凍装置。2. The refrigerating apparatus according to claim 1, wherein the refrigerant is an HFC refrigerant or a refrigerant mainly composed of an HFC refrigerant.
系潤滑油あるいはこれらの混合物である請求項１あるい
は請求項２記載の冷凍装置。3. The refrigerating apparatus according to claim 1 or 2, wherein the refrigerating machine oil is an ester type lubricating oil, an ether type lubricating oil or a mixture thereof.
剤である請求項１ないし請求項３記載の冷凍装置。4. The refrigerating apparatus according to claim 1, wherein the desiccant is a molecular sieve granular desiccant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23070094A JPH0875319A (en) | 1994-08-31 | 1994-08-31 | Refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23070094A JPH0875319A (en) | 1994-08-31 | 1994-08-31 | Refrigerating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0875319A true JPH0875319A (en) | 1996-03-19 |
Family
ID=16911955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23070094A Pending JPH0875319A (en) | 1994-08-31 | 1994-08-31 | Refrigerating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0875319A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004190998A (en) * | 2002-12-13 | 2004-07-08 | Matsushita Electric Ind Co Ltd | Refrigeration cycle |
| JP2007301470A (en) * | 2006-05-11 | 2007-11-22 | Asahi Kasei Chemicals Corp | Improved catalyst |
| CN103673433A (en) * | 2012-09-03 | 2014-03-26 | 梁嘉麟 | Structural processing method for arranging low-pressure circulation barrel in high-layer refrigeration air conditioner unit |
| CN114270117A (en) * | 2019-08-22 | 2022-04-01 | 丹佛斯有限公司 | Refrigeration system |
-
1994
- 1994-08-31 JP JP23070094A patent/JPH0875319A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004190998A (en) * | 2002-12-13 | 2004-07-08 | Matsushita Electric Ind Co Ltd | Refrigeration cycle |
| JP2007301470A (en) * | 2006-05-11 | 2007-11-22 | Asahi Kasei Chemicals Corp | Improved catalyst |
| CN103673433A (en) * | 2012-09-03 | 2014-03-26 | 梁嘉麟 | Structural processing method for arranging low-pressure circulation barrel in high-layer refrigeration air conditioner unit |
| CN103673433B (en) * | 2012-09-03 | 2018-08-07 | 中国计量大学 | The structure processing method of adapted low pressure recycle bucket in high-rise refrigerated air-conditioning system unit |
| CN114270117A (en) * | 2019-08-22 | 2022-04-01 | 丹佛斯有限公司 | Refrigeration system |
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