JPS60173082A - Operating medium for heat pump - Google Patents
Operating medium for heat pumpInfo
- Publication number
- JPS60173082A JPS60173082A JP59026948A JP2694884A JPS60173082A JP S60173082 A JPS60173082 A JP S60173082A JP 59026948 A JP59026948 A JP 59026948A JP 2694884 A JP2694884 A JP 2694884A JP S60173082 A JPS60173082 A JP S60173082A
- Authority
- JP
- Japan
- Prior art keywords
- heat pump
- working medium
- freon
- heating
- compressor
- 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
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はヒートポンプ等に使用しうる新規な作動媒体に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel working medium that can be used in heat pumps and the like.
本発明において「ヒートポンプ」とは高温流体を製造す
る狭義のヒートポンプのみならず冷流体を製造する冷凍
機等を含めた広義のヒートポンプを意味するものである
。In the present invention, the term "heat pump" refers not only to heat pumps in a narrow sense that produce high-temperature fluids, but also to heat pumps in a broad sense, including refrigerators and the like that produce cold fluids.
ヒートポンプの応用は冷凍庫、冷蔵庫、冷房機器、暖房
機器、給湯機器および排熱回収を目的とした機器等多岐
に及んでいる。省エネルギーの立場から新しい作動媒体
の開発によるヒートポンプの効率改善が期待されている
。すなわち、熱利用をするに際しその加熱、冷却能力と
その運転に必要な電気エネルギーとの比である成績係数
を向上せしめかつ作動媒体の圧縮機吸入容積当りの能力
(加熱、冷却能力)を向上させる断作動媒体の開発が望
まれている。またヒートポンプを熱利用機器に応用する
場合、コストが他の方式に比べ安価であるという条件が
あり作動媒体としても稀少かつ高価では使用する利点が
なく、安価で容易に入手できるものに限られる。Heat pumps have a wide range of applications, including freezers, refrigerators, air conditioning equipment, heating equipment, hot water supply equipment, and equipment for waste heat recovery. From the standpoint of energy conservation, it is expected that the efficiency of heat pumps will be improved through the development of new working media. In other words, when utilizing heat, it improves the coefficient of performance, which is the ratio between the heating and cooling capacity and the electrical energy required for its operation, and also improves the capacity (heating and cooling capacity) per compressor suction volume of working medium. The development of a cutting-off working medium is desired. Furthermore, when heat pumps are applied to heat utilization equipment, there is a condition that the cost is lower than other methods, and as a working medium, there is no advantage to using it if it is rare and expensive, and it is limited to those that are cheap and easily available.
本発明者らはそのような要望に応えるべく種々研究を重
ねた結果、ジクロロモノフルオロメタン(フロン−21
)とモノクロロジフルオロメタン(フロン−22)とモ
ノクロロペンタフルオロエタン(フロン−115)を混
合した混合系は混合前の単一物質に比べて優れた特性を
もっことを見出した。特にフロン−21と、共佛組成で
ある48.8重量%のフロン−22と51.2重量%の
フロン−115との混合物(以下フロン−502)との
混合物がヒートポンプ用作動媒体としてすぐれた特性を
もつことを見出した。The present inventors have conducted various studies to meet such demands, and as a result, dichloromonofluoromethane (Freon-21
), monochlorodifluoromethane (Freon-22), and monochloropentafluoroethane (Freon-115) have been found to have superior properties compared to a single substance before mixing. In particular, a mixture of Freon-21 and a mixture of 48.8% by weight of Freon-22 and 51.2% by weight of Freon-115 (hereinafter referred to as Freon-502) is an excellent working medium for heat pumps. It was discovered that it has certain characteristics.
以下本発明の詳細な説明する。The present invention will be explained in detail below.
第1図は本発明の作動媒体を用いたヒートポンプのフロ
ーシートを示しており、符合1は圧縮機、2は凝縮器、
3.3′は負荷流体用配管。FIG. 1 shows a flow sheet of a heat pump using the working medium of the present invention, where 1 is a compressor, 2 is a condenser,
3.3' is the load fluid piping.
4は減圧装置、5は蒸発器、8.8′は熱源流体用配管
を示す。4 is a pressure reducing device, 5 is an evaporator, and 8.8' is a heat source fluid piping.
第1図に示すヒートポンプシステムにおいて作動媒体は
圧縮機l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
流体により加熱蒸発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。In the heat pump system shown in FIG. 1, the working medium is compressed by a compressor 1 and then led to a condenser 2.
Inside, it is cooled and condensed by the load fluid introduced from the pipe 3. Meanwhile, the load fluid is heated inversely in the condenser 2 and the tube 3
' and then subjected to load heating. Next, the condensed working medium is depressurized by the pressure reducing device 4 and then led to the evaporator 5, where it is heated and evaporated by the heat source fluid introduced from the pipe 6 and discharged from the pipe 6', and then transferred to the compressor again. 1 and repeat the above cycle.
第2図及び第3図は第1図に示すヒートポンプシステム
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。FIGS. 2 and 3 show the cycles of the working medium in the heat pump system shown in FIG. 1 on pressure-enthalpy diagrams.
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
。When saturated vapor as a working medium is adiabatically compressed, a wet state is shown in Fig. 2, and a dry state is shown in Fig. 3.
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図の符合8がら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から11あるいは14か
ら17の変化に、減圧装置による作動媒体の変化は11
がら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 in the working medium due to the compressor in Figure 1 is a change from 8 to 9 or from 13 to 14 in Figures 2 and 3, and the change in working medium due to the condenser is a change from 9 to 11 or from 14 to 17. The change in the working medium due to the pressure reduction device is 11.
A change in the working medium by the evaporator corresponds to a change from 12 or 17 to 18, and a change from 12 to 8 or 18 to 13, respectively.
本発明の作動媒体を用いた第1図のヒートポンプシステ
ムの運転条件として圧縮機の吸入温度(符合8あるいは
13の温度)を5℃に、凝縮器における作動媒体の凝縮
始めの温度(符合9あるいは15の温度)を40℃、7
0℃に設定した。The operating conditions for the heat pump system shown in FIG. 1 using the working medium of the present invention are that the suction temperature of the compressor (temperature numbered 8 or 13) is 5°C, and the temperature at the start of condensation of the working medium in the condenser (temperature numbered 9 or 13) is set at 5°C. 15) to 40℃, 7
The temperature was set at 0°C.
第1表に本発明の作動媒体を用いた上記のヒートポンプ
システムにおける成績係数、圧縮機吸引容積当りの加熱
能力(以下単に加熱能力という)、および凝縮器内での
作動媒体の圧力を比較例とともに記す。Table 1 shows the coefficient of performance, heating capacity per compressor suction volume (hereinafter simply referred to as heating capacity), and pressure of the working medium in the condenser in the above heat pump system using the working medium of the present invention, along with comparative examples. write down
第1表から理解されるようにフロン−21のモル分率0
.70〜0.95である本発明の作動媒体を用いたヒー
トポンプの成績係数は、フロン−21およびフロン−5
02を単独で用いた場合に比べ改善されており、凝縮開
始温度が40℃においてフロン−21単独のものに比し
4%、フロン−502単独のものに比し17%改善され
ている。さらに凝縮開始温度が高い場合フロン−502
を単独で用いると凝縮圧力が高くなる為、通常の機器を
用いることが困難となるが、フロン−21を添加すると
凝縮圧力が低下し、フロン−21のモル分率0.70の
本発明の作動媒体においては成績係数がフロン−21を
単独で用いた場合とほぼ同程度であるにかかわらず、加
熱能力が40%も改善されている。さらに本発明の作動
媒体はフロン−21にフロン−21よlJ熱安定性の高
いフロン−22あるいはフロン−115ヲm加すること
でフロン−21より熱安定性が改善されることをも特徴
としている。As understood from Table 1, the mole fraction of Freon-21 is 0.
.. The coefficient of performance of the heat pump using the working medium of the present invention, which is 70 to 0.95, is CFC-21 and CFC-5.
The condensation start temperature at 40° C. is improved by 4% compared to the case where only Freon-21 is used, and by 17% compared to the case where Freon-502 is used alone. Furthermore, if the condensation start temperature is high, Freon-502
When used alone, the condensation pressure increases, making it difficult to use ordinary equipment, but when Freon-21 is added, the condensation pressure decreases, and the present invention with a mole fraction of Freon-21 of 0.70 Although the coefficient of performance of the working medium is almost the same as when Freon-21 is used alone, the heating capacity is improved by 40%. Furthermore, the working fluid of the present invention is characterized in that its thermal stability is improved compared to Freon-21 by adding 1J of Freon-22 or Freon-115, which has higher thermal stability than Freon-21, to Freon-21. There is.
すなわち本発明の作動媒体は、それを用いたヒートポン
プにおいて凝縮圧力を極端に高くすることなく圧縮機の
吸入容積当りの加熱能力を改善するとともに成績係数も
改善することができる特性を有しているといえる。さら
に従来から冷暖房および中温域ヒートポンプ用作動媒体
として使用されているジクロロジフルオロメタンを第1
表が得られた場合と同一運転条件で運転する場合、凝縮
開始温度が70℃において凝縮圧力が19.3kg/
cr&で成績係数が3.77であり、本発明の作動媒体
を用いた場合の方が凝縮圧力は低くかつ成績係数の最高
では23%も改善されることが見出された。In other words, the working medium of the present invention has characteristics that can improve the heating capacity per suction volume of the compressor and also improve the coefficient of performance in a heat pump using the working medium without extremely increasing the condensing pressure. It can be said. Furthermore, dichlorodifluoromethane, which has traditionally been used as a working medium for air conditioning and medium-temperature heat pumps, is the first
When operating under the same operating conditions as when the table was obtained, the condensation start temperature was 70°C and the condensation pressure was 19.3kg/
The coefficient of performance for CR& was 3.77, and it was found that when the working fluid of the present invention was used, the condensing pressure was lower and the highest coefficient of performance was improved by 23%.
以−に説明したように本発明の作動媒体を冷暖房等を含
めた広義のヒートポンプに応用する場合、従来の作動媒
体を用いたヒートポンプに比べて成績係数が改善され、
しかも圧縮機の同−吸込風量当りの加熱および冷却能力
が著しく増大することができ実用上きわめて有用な効果
をもたらす。As explained above, when the working medium of the present invention is applied to heat pumps in a broad sense, including heating and cooling, etc., the coefficient of performance is improved compared to heat pumps using conventional working mediums.
Furthermore, the heating and cooling capacity per unit of suction air volume of the compressor can be significantly increased, resulting in an extremely useful effect in practice.
第 1 表 処置開始温度40°C 凝縮開始温度70°CTable 1 Treatment starting temperature 40°C Condensation start temperature 70°C
f51図は本発明の一実施例を説明するためのヒートポ
ンプのフローシート、第2図および第3図はフロン−2
1/フロン−502i合系を作動媒体として用いたサイ
クルを圧力−エンタルピー線図に記入した図である。
芽 l 閑
茅 2 閲 茅 3 )4
エン71ンビ 工〉7)νヒ゛
手続補正書
昭和59年7月V日
特詐庁長官若杉和夫殿
1、事件の表示
昭和59年特詐願第26948号
2、発明の名称
ヒートポンプ用作動媒体
3、補正をする者
事件との関係 特許出願人
住 所 東京都千代田区丸の内二丁目1番2号名称 (
OO4)旭硝子株式会社
4、イ(埋入
自発補正
8、補正により増加する発明の数 なし8、補正の内容
(1)明細書第8X目、凝縮開始温度70”Oにお(す
るカロ熱能力(kcal/+a3)の値を以下の通り訂
正する。
訂正前 訂正後
165 → 212
191 → 244
212 → 272
233 → 300
583 → 849
以上Fig. f51 is a flow sheet of a heat pump for explaining one embodiment of the present invention, Figs.
It is a pressure-enthalpy diagram showing a cycle using a 1/Freon-502i combination system as a working medium. 2. Review 3) 4 En71 Nbi Engineering 7) v. Procedural Amendment July 1980 V, Director-General of the Special Fraud Agency, Mr. Kazuo Wakasugi 1, Indication of the Case 1982 Special Fraud Application No. 26948 2. Name of the invention Working medium for heat pumps 3. Relationship with the case of the person making the amendment Patent applicant address 2-1-2 Marunouchi, Chiyoda-ku, Tokyo Name (
OO4) Asahi Glass Co., Ltd. 4, A (Embedded spontaneous amendment 8, Number of inventions increased by amendment None 8, Contents of amendment (1) No. 8 Correct the value of (kcal/+a3) as follows: Before correction After correction 165 → 212 191 → 244 212 → 272 233 → 300 583 → 849 or more
Claims (1)
ロメタンとモノクロロペンタフルオロエタンとを必須成
分とすることを特徴とするヒートポンプ用作動媒体。 2、モノクロロジフルオロメタンとモノクロロペンタフ
ルオロエタンが48.8重量%のモノクロロジフルオロ
メタンと51.2重量%のモノクロロペンタフルオロエ
タンとの共清組成である特許請求の範囲第1項記載の作
動媒体。 3、ジクロロモノフルオロメタンのモル分率が0.70
〜0.95である特許請求の範囲第1項記載の作動媒体
。[Scope of Claims] 1. A working medium for a heat pump, characterized in that it contains dichloromonofluoromethane, monochlorodifluoromethane, and monochloropentafluoroethane as essential components. 2. The working medium according to claim 1, wherein the monochlorodifluoromethane and monochloropentafluoroethane have a co-liquid composition of 48.8% by weight of monochlorodifluoromethane and 51.2% by weight of monochloropentafluoroethane. 3. The molar fraction of dichloromonofluoromethane is 0.70
The working medium according to claim 1, wherein the working medium is 0.95 to 0.95.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59026948A JPS60173082A (en) | 1984-02-17 | 1984-02-17 | Operating medium for heat pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59026948A JPS60173082A (en) | 1984-02-17 | 1984-02-17 | Operating medium for heat pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60173082A true JPS60173082A (en) | 1985-09-06 |
Family
ID=12207373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59026948A Pending JPS60173082A (en) | 1984-02-17 | 1984-02-17 | Operating medium for heat pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60173082A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5049296A (en) * | 1989-01-28 | 1991-09-17 | Chujun Gu | Working media for a thermodynamic engineering device operating in accordance with the Gu thermodynamic cycle |
US5062985A (en) * | 1989-06-16 | 1991-11-05 | Sanyo Electric Co., Ltd. | Refrigerant composition containing dichloromonofluoromethane |
-
1984
- 1984-02-17 JP JP59026948A patent/JPS60173082A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5049296A (en) * | 1989-01-28 | 1991-09-17 | Chujun Gu | Working media for a thermodynamic engineering device operating in accordance with the Gu thermodynamic cycle |
US5062985A (en) * | 1989-06-16 | 1991-11-05 | Sanyo Electric Co., Ltd. | Refrigerant composition containing dichloromonofluoromethane |
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