JP2004019997A - Single-refrigerant refrigerator - Google Patents
Single-refrigerant refrigerator Download PDFInfo
- Publication number
- JP2004019997A JP2004019997A JP2002173455A JP2002173455A JP2004019997A JP 2004019997 A JP2004019997 A JP 2004019997A JP 2002173455 A JP2002173455 A JP 2002173455A JP 2002173455 A JP2002173455 A JP 2002173455A JP 2004019997 A JP2004019997 A JP 2004019997A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- condenser
- refrigerator
- compressor
- discharged
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/006—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant containing more than one component
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
【0001】
【発明の属する技術分野】
本発明は、1元冷凍の超低温冷凍装置に関する。
【0002】
【従来の技術】
従来より、−60℃〜−90℃以下の超低温の生成には、超低温冷凍装置が用いられている。この超低温冷凍装置は、一元冷凍装置(単元冷凍装置)と、高温側冷凍回路と低温側冷温回路により構成されている二元冷凍装置等の多元冷凍装置とがある。
【0003】
【発明が解決しようとする課題】
本発明は、一元冷凍装置の冷媒として、環境にやさしい冷媒を用いることを目的とする。
【0004】
【課題を解決するための手段】
本発明は、1元冷凍装置において、亜酸化窒素とHC冷媒との混合物を冷媒としたことを特徴とする。
【0005】
また、本発明は、1元冷凍装置において、亜酸化窒素とエタンとの混合物を冷媒としたことを特徴とする。
【0006】
【発明の実施の形態】
本発明の第1の実施形態を図1を参照しつつ説明する。
【0007】
図1において、1は圧縮機、2は凝縮器、3は主キャピラリーチューブの減圧装置、4は蒸発器であり、これらは配管接続して冷凍回路5を構成している。
【0008】
圧縮機1の吐出側配管6は凝縮器2に接続され、凝縮器2はキャピラリーチューブの減圧装置3に接続され、この減圧装置は蒸発器4に接続される。この蒸発器は圧縮機1の吸込側配管7に接続される。
【0009】
この冷凍回路には、亜酸化窒素とHC冷媒との混合物である冷媒が封入されている。このHC冷媒とは、例えばエタンである。
【0010】
このように構成された冷凍装置において、圧縮機1から吐出された高温高圧のガス状混合冷媒は吐出側配管6から凝縮器2に吐出される。凝縮器2に吐出された冷媒はこの凝縮器2で放熱されて凝縮液化する。凝縮液化した冷媒は減圧装置3で減圧されて蒸発器4に流入し、そこで蒸発気化して周囲を冷却する。蒸発器で蒸発した冷媒は吸込側配管7から圧縮機1に帰還する。
【0011】
【発明の効果】
本発明は、1元冷凍装置の冷媒として、亜酸化窒素とHC冷媒との混合物を用いたので、環境にやさしい冷凍回路を実現することができる。
【図面の簡単な説明】
【図1】この発明の実施形態を説明するための冷凍回路図である。
【符号の説明】
1 圧縮機、
2 凝縮器、
4 蒸発器、
5 冷凍回路。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a one-way refrigeration ultra-low temperature refrigeration apparatus.
[0002]
[Prior art]
Conventionally, an ultra-low-temperature refrigeration apparatus has been used to generate an ultra-low temperature of −60 ° C. to −90 ° C. or less. This ultra-low temperature refrigeration system includes a one-way refrigeration system (a single-unit refrigeration system) and a multi-stage refrigeration system such as a binary refrigeration system including a high-temperature side refrigeration circuit and a low-temperature side refrigeration circuit.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to use an environmentally friendly refrigerant as a refrigerant of a one-way refrigeration apparatus.
[0004]
[Means for Solving the Problems]
The present invention is characterized in that a mixture of nitrous oxide and HC refrigerant is used as a refrigerant in a one-way refrigeration apparatus.
[0005]
Further, the present invention is characterized in that a mixture of nitrous oxide and ethane is used as a refrigerant in a one-way refrigeration apparatus.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
A first embodiment of the present invention will be described with reference to FIG.
[0007]
In FIG. 1, reference numeral 1 denotes a compressor, 2 denotes a condenser, 3 denotes a decompression device for a main capillary tube, and 4 denotes an evaporator.
[0008]
The discharge-side pipe 6 of the compressor 1 is connected to the
[0009]
A refrigerant that is a mixture of nitrous oxide and HC refrigerant is sealed in the refrigeration circuit. The HC refrigerant is, for example, ethane.
[0010]
In the refrigeration apparatus configured as described above, the high-temperature and high-pressure gaseous mixed refrigerant discharged from the compressor 1 is discharged from the discharge-side pipe 6 to the
[0011]
【The invention's effect】
The present invention uses a mixture of nitrous oxide and HC refrigerant as the refrigerant of the one-way refrigeration apparatus, so that an environmentally friendly refrigeration circuit can be realized.
[Brief description of the drawings]
FIG. 1 is a refrigeration circuit diagram for describing an embodiment of the present invention.
[Explanation of symbols]
1 compressor,
2 condenser,
4 evaporator,
5 Refrigeration circuit.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002173455A JP2004019997A (en) | 2002-06-13 | 2002-06-13 | Single-refrigerant refrigerator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002173455A JP2004019997A (en) | 2002-06-13 | 2002-06-13 | Single-refrigerant refrigerator |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2004019997A true JP2004019997A (en) | 2004-01-22 |
Family
ID=31172668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002173455A Pending JP2004019997A (en) | 2002-06-13 | 2002-06-13 | Single-refrigerant refrigerator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2004019997A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009052903A1 (en) * | 2007-10-24 | 2009-04-30 | Konvekta Ag | Expansion valve |
-
2002
- 2002-06-13 JP JP2002173455A patent/JP2004019997A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009052903A1 (en) * | 2007-10-24 | 2009-04-30 | Konvekta Ag | Expansion valve |
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