JP2507437B2 - Working medium mixture - Google Patents
Working medium mixtureInfo
- Publication number
- JP2507437B2 JP2507437B2 JP62140029A JP14002987A JP2507437B2 JP 2507437 B2 JP2507437 B2 JP 2507437B2 JP 62140029 A JP62140029 A JP 62140029A JP 14002987 A JP14002987 A JP 14002987A JP 2507437 B2 JP2507437 B2 JP 2507437B2
- Authority
- JP
- Japan
- Prior art keywords
- working medium
- present
- medium mixture
- refrigeration
- cycle
- 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
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、冷凍機、ヒートポンプ等に使用し得る新規
な作動媒体混合物に関する。Description: TECHNICAL FIELD The present invention relates to a novel working medium mixture that can be used in refrigerators, heat pumps, and the like.
［従来技術］ 空調、冷凍および冷蔵機器（冷凍サイクル・ヒートポ
ンプサイクル）、廃熱回収発電（ランキンサイクル）、
熱交換機器（ヒートパイプ）等が実用化ないし試験開発
されている。[Prior art] Air conditioning, refrigeration and refrigeration equipment (refrigeration cycle / heat pump cycle), waste heat recovery power generation (rankin cycle),
Heat exchange equipment (heat pipes) and the like have been commercialized or tested and developed.
これらの機器に用いる作動媒体には、水をはじめプロ
パンやブタン等の炭化水素類，トリクロロモノフルオロ
メタン（Ｒ−11）や、1,2−ジクロロテトラフルオロエ
タン（Ｒ−114）等のフロン類、又はアンモニア等が知
られている。The working medium used in these devices includes water, hydrocarbons such as propane and butane, and fluorocarbons such as trichloromonofluoromethane (R-11) and 1,2-dichlorotetrafluoroethane (R-114). , Or ammonia is known.
［発明の目的］ フロン類は毒性が少なく、非可燃性で化学的にも安定
であり、沸点の異なる各種フロンが容易に入手できるこ
とから、作動媒体としての評価研究が活発に行なわれて
いる。本発明者等は、熱回収効率（特に、冷凍庫，冷蔵
庫，冷暖房機器，給湯機器あるいは廃熱回収を目的とし
たヒートポンプなど）の高いフロン類の探索を進めた結
果、ジクロロトリフルオロエタンとテトラフルオロエタ
ンとを必須成分とする作動媒体混合物が有効であること
を見い出すことができた。本発明は、このような作動媒
体混合物を新規に提供するものである。[Object of the Invention] CFCs are less toxic, non-flammable, chemically stable, and various CFCs having different boiling points are easily available. Therefore, evaluation studies as working media have been actively conducted. The present inventors have advanced the search for CFCs having a high heat recovery efficiency (especially a freezer, a refrigerator, an air conditioner, a hot water supply device, a heat pump for the purpose of recovering waste heat), and as a result, dichlorotrifluoroethane and tetrafluoro It has been found that working medium mixtures with ethane as an essential component are effective. The present invention newly provides such a working medium mixture.
［発明の構成］ 本発明における、ジクロロトリフルオロエタンには、
1,1−ジクロロ−2,2,2−トリフルオロエタン（Ｒ−12
3）,1,2−ジクロロ−1,2,2−トリフルオロエタン（Ｒ−
123a）そして、1,1−ジクロロ−1,2,2−トリフルオロエ
タン（Ｒ−123b）の３種の異性体が又、テトラフルオロ
エタンには1,1,2,2−テトラフルオロエタン（Ｒ−134）
と1,1,1,2−テトラフルオロエタン（Ｒ−134a）の２種
の異性体が知られているが、それぞれの異性体は互いに
物性が類似しているため、これらを単独で用いてもよ
く、また、これらの混合物を用いてもよい。以下の説明
においてはＲ−123とＲ−134aを混合使用する例を示
す。[Constitution of Invention] In the present invention, dichlorotrifluoroethane includes
1,1-dichloro-2,2,2-trifluoroethane (R-12
3), 1,2-dichloro-1,2,2-trifluoroethane (R-
123a) and three isomers of 1,1-dichloro-1,2,2-trifluoroethane (R-123b) are also present in tetrafluoroethane as 1,1,2,2-tetrafluoroethane ( R-134)
And 1,1,1,2-tetrafluoroethane (R-134a) are known as two isomers, but since each isomer has similar physical properties to each other, they can be used alone. Also, a mixture of these may be used. In the following description, an example in which R-123 and R-134a are mixed and used is shown.
以下、本発明の作動媒体を用いた冷凍サイクルシステ
ムのフローシートを示す第１図に従って本発明を詳細に
説明する。第１図の１は圧縮機、２は凝縮器、3,3′は
負荷流体用配管、４は減圧装置、５は蒸発器、6,6′は
熱源流体用配管を示す。Hereinafter, the present invention will be described in detail with reference to FIG. 1 showing a flow sheet of a refrigeration cycle system using the working medium of the present invention. In FIG. 1, 1 is a compressor, 2 is a condenser, 3 and 3'are load fluid pipes, 4 is a pressure reducing device, 5 is an evaporator, and 6 and 6'are heat source fluid pipes.
第１図に示す冷凍サイクルシステムにおいて作動媒体
は圧縮機１で圧縮された後凝縮器２に導かれ、該凝縮器
２中で管３より導入される負荷流体により冷却されて凝
縮する。一方、負荷流体は凝縮器２中で逆に加熱され管
３′を経て負荷加熱に供される。つぎに凝縮した作動媒
体は減圧装置４により減圧された後蒸発器５に導かれ、
該蒸発器５中で管６より導入され管６′から排出される
熱源流体により加熱された後、再び圧縮機１に吸引され
上記のサイクルを繰り返す。一方、熱源流体は蒸発器５
中で逆に冷却され、管６′を経て冷却に供される。In the refrigeration cycle system shown in FIG. 1, the working medium is compressed by the compressor 1 and then guided to the condenser 2, where it is cooled and condensed by the load fluid introduced from the pipe 3. On the other hand, the load fluid is inversely heated in the condenser 2 and supplied to the load heating through the pipe 3 '. Next, the condensed working medium is decompressed by the decompression device 4 and then introduced to the evaporator 5,
After being heated in the evaporator 5 by the heat source fluid introduced from the pipe 6 and discharged from the pipe 6 ', it is sucked into the compressor 1 again and the above cycle is repeated. On the other hand, the heat source fluid is the evaporator 5
Inside it is cooled in reverse and subjected to cooling via pipe 6 '.
第２図及び第３図は第１図に示す冷凍サイクルシステ
ムにおける作動媒体のサイクルを圧力−エンタルピー線
図上に記入したものである。作動媒体の飽和蒸気を断熱
圧縮した場合、湿り状態になるものを第２図に、乾き状
態になるものを第３図に示す。2 and 3 are diagrams in which the cycle of the working medium in the refrigeration cycle system shown in FIG. 1 is entered on the pressure-enthalpy diagram. When saturated vapor of the working medium is adiabatically compressed, a wet state is shown in FIG. 2 and a dry state is shown in FIG.
第１図の圧縮機による作動媒体の変化は第２図及び第
３図の符号８から９あるいは13から14の変化に、凝縮器
による作動媒体の変化は９→10→11→あるいは14→15→
16→17の変化に、減圧装置による作動媒体の変化は11か
ら12あるいは17から18の変化に、蒸発器による作動媒体
の変化は12から８あるいは18から13の変化にそれぞれ対
応する。The change of the working medium by the compressor in FIG. 1 is the change from 8 to 9 or 13 to 14 in FIGS. 2 and 3, and the change of the working medium by the condenser is 9 → 10 → 11 → or 14 → 15. →
The change of the working medium by the pressure reducing device corresponds to the change of 11 to 12 or 17 to 18, and the change of the working medium by the evaporator corresponds to the change of 12 to 8 or 18 to 13, respectively.
本発明の作動媒体を用いた第１図の冷凍サイクルシス
テムの運転条件として蒸発器における作動媒体の蒸発終
り温度（符号７あるいは13の温度。以下、蒸発温度とい
う）と凝縮器における作動媒体の凝縮始めの温度（符号
９あるいは15の温度。以下、凝縮温度という）を設定し
た。第１表から第２表に本発明の作動媒体を用いた上記
の冷凍サイクルシステムにおける成績係数、圧縮機単位
kw当りの冷凍能力および作動媒体の循環量を、比較例と
ともに記す。As the operating conditions of the refrigeration cycle system of FIG. 1 using the working medium of the present invention, the end temperature of evaporation of the working medium in the evaporator (the temperature of reference numeral 7 or 13; hereinafter referred to as the evaporation temperature) and the condensation of the working medium in the condenser The initial temperature (the temperature of code 9 or 15; hereinafter referred to as the condensation temperature) was set. Tables 1 to 2 show the coefficient of performance and compressor unit in the refrigeration cycle system using the working medium of the present invention.
The refrigerating capacity per kw and the circulation amount of the working medium are shown together with the comparative example.
表から理解されるようにＲ−123とＲ−134aとの混合
モル比が約50:50〜99:1の範囲となる本発明の作動媒体
を用いた冷凍サイクルの成績係数および冷凍能力はＲ−
123およびＲ−134aをそれぞれ単独で用いた場合に比べ
改善されており、現在、一般に用いられているトリクロ
ロフルオロメタン（Ｒ−11）、ジクロロジフルオロメタ
ン（Ｒ−12）と比べても大きく改善されている。As can be understood from the table, the coefficient of performance and the refrigerating capacity of the refrigeration cycle using the working medium of the present invention, in which the mixed molar ratio of R-123 and R-134a is in the range of about 50:50 to 99: 1, is R −
This is an improvement over the case where 123 and R-134a are used alone, and a great improvement over the currently commonly used trichlorofluoromethane (R-11) and dichlorodifluoromethane (R-12). ing.
本発明の作動媒体混合物は低温〜中温、高温分野の空
調、冷凍および冷蔵を目的とした冷凍サイクルに応用す
る場合に特に有効であるが、ランキンサイクル用あるい
は、その他各種の熱回収技術用の作動媒体として使用す
ることもできる。本発明の作動媒体混合物は熱安定性が
優れており、通常の使用条件においては安定剤を必要と
しないが、苛酷な使用条件のため熱安定性の向上が必要
な場合には、ジメチルホスファイト、ジイソプロピルホ
スファイト、ジフェニルホスファイト等のホスファイト
系化合物、又はチオホスファイト系化合物、あるいはト
リフェノキシホスフインサルファイド、トリメチルホス
フインサルファイド等のホスフインサルファイド系化合
物、その他の安定剤を作動媒体100重量部に対し、１重
量部前後の少量添加すればよい。The working medium mixture of the present invention is particularly effective when applied to a refrigeration cycle for the purpose of air conditioning, refrigeration and refrigeration in low-to-medium temperature and high-temperature fields, but it operates for Rankine cycle or other various heat recovery techniques. It can also be used as a medium. The working medium mixture of the present invention has excellent thermal stability and does not require a stabilizer under normal use conditions, but when it is necessary to improve heat stability due to severe use conditions, dimethyl phosphite is used. Phosphite-based compounds such as diisopropyl phosphite and diphenyl phosphite, or thiophosphite-based compounds, or phosphine sulfide-based compounds such as triphenoxyphosphine sulfide and trimethylphosphine sulfide, and other stabilizers as a working medium 100% by weight A small amount of about 1 part by weight may be added to each part.
［発明の効果］ 本発明の作動媒体混合物は、冷凍サイクル効率すなわ
ち冷凍、加熱効率に優れ、混合前の単独成分に比し、大
幅な改善が認められる。 [Effects of the Invention] The working medium mixture of the present invention is excellent in refrigeration cycle efficiency, that is, refrigeration and heating efficiency, and is significantly improved as compared with the single component before mixing.
【図面の簡単な説明】 第１図は本発明の１実施例を説明するための冷凍サイク
ルのフローシート、第２図および第３図はＲ−123/R−1
34a混合系を冷媒として用いたサイクルを圧力−エンタ
ルピー線図に記入した図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a refrigerating cycle for explaining one embodiment of the present invention, and FIGS. 2 and 3 are R-123 / R-1.
It is the figure which entered into the pressure-enthalpy diagram the cycle which used the 34a mixing system as a refrigerant.
Claims (2)
オロエタンを必須成分とすることを特徴とする作動媒体
混合物。1. A working medium mixture comprising dichlorotrifluoroethane and tetrafluoroethane as essential components.
オロエタンとの混合モル比が50:50〜99:1である特許請
求の範囲第１項記載の作動媒体混合物。2. The working medium mixture according to claim 1, wherein the mixing molar ratio of dichlorotrifluoroethane and tetrafluoroethane is 50:50 to 99: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62140029A JP2507437B2 (en) | 1987-06-05 | 1987-06-05 | Working medium mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62140029A JP2507437B2 (en) | 1987-06-05 | 1987-06-05 | Working medium mixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63305185A JPS63305185A (en) | 1988-12-13 |
| JP2507437B2 true JP2507437B2 (en) | 1996-06-12 |
Family
ID=15259298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62140029A Expired - Lifetime JP2507437B2 (en) | 1987-06-05 | 1987-06-05 | Working medium mixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2507437B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6419255A (en) * | 1987-07-14 | 1989-01-23 | Technol Res Assoc Super Heat P | Heat pump |
| JPH0730311B2 (en) * | 1987-09-21 | 1995-04-05 | ダイキン工業株式会社 | Coolant |
| JPH075880B2 (en) * | 1987-09-21 | 1995-01-25 | ダイキン工業株式会社 | Coolant |
| DE69409813T2 (en) * | 1993-08-09 | 1999-01-07 | Livien Domien Antwerpen Ven | STEAM ENGINE |
| BE1007435A3 (en) * | 1993-08-09 | 1995-06-13 | Ven Livien Domien | Evaporation pressure construction |
| CN1313559C (en) * | 2005-12-09 | 2007-05-02 | 天津大学 | Ternary mixed working medium for intermediate-high-temperature heat pump |
-
1987
- 1987-06-05 JP JP62140029A patent/JP2507437B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63305185A (en) | 1988-12-13 |
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