SU853311A1 - Double-stage cooling unit - Google Patents
Double-stage cooling unit Download PDFInfo
- Publication number
- SU853311A1 SU853311A1 SU792809190A SU2809190A SU853311A1 SU 853311 A1 SU853311 A1 SU 853311A1 SU 792809190 A SU792809190 A SU 792809190A SU 2809190 A SU2809190 A SU 2809190A SU 853311 A1 SU853311 A1 SU 853311A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- low
- double
- pressure compressor
- cooling unit
- pressure
- Prior art date
Links
Classifications
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- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
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- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/23—Separators
Landscapes
- Other Air-Conditioning Systems (AREA)
Description
(54) ДВУХСТУПЕНЧАТАЯ ХОЛОДИЛЬНАЯ УСТАНОВКА(54) TWO-SPEED REFRIGERATION INSTALLATION
II
Изобретение относитс к области холодильной техники и направлено на повышение эффективности холодильной установки в холодное врем года.The invention relates to the field of refrigeration and is aimed at improving the efficiency of the refrigeration unit during the cold season.
Известны двухступенчатые холодильные установки, содержащие испаритель, компрессоры низкого и высокого давлени , установленный между ними промсосуд и конденсатор воздушного охлаждени , подсоединенный к компрессору высокого давлени 1.Two-stage refrigeration units are known, comprising an evaporator, low and high pressure compressors, an industrial vessel installed between them, and an air cooled condenser connected to the high pressure compressor 1.
Недостатком таких конструкций вл етс то, что в случае применени в схеме воздушных конденсаторов неполно используетс эффект снижени температуры в холодное вре1у года.The disadvantage of such structures is that, in the case of using air condensers in the circuit, the effect of decreasing temperature in the cold season is not fully used.
Цель изобретени - повышение экономичности работы холодильной установки при низкой температуре наружного воздуха.The purpose of the invention is to increase the efficiency of the refrigeration unit at low outdoor temperature.
Эта цель достигаетс тем, что в двухступенчатой холодильной установке нагнетательна и всасываюша стороны компрессора высокого давлени сторонами компрессора высокого давлени соединены соответственно с нагнетательной и всасываюш,ей сторонами компрессора низкого давлени This goal is achieved by the fact that in a two-stage refrigeration unit the injection and suction sides of the high pressure compressor are connected to the sides of the high pressure compressor respectively to the injection and suction side, to them by the sides of the low pressure compressor
посредством перепускных трубопроводов, снабженных запорными вентил ми.by-pass pipelines equipped with shut-off valves.
На чертеже схематично изображена установка .The drawing schematically shows the installation.
Установка содержит компрессор низкого 1 и высокого 2 давлени , конденсатор 3 воздушного охлаждени , испаритель 4, промсосуд 5, дроссельные вентили 6 и 7 и соединительные трубопроводы 8, 9, 10, 11, 12, 13, 14, 15, 16 с запорными вентил ми 17, 18, 19, 20, 21, 22, 23, 24.The installation contains a compressor of low 1 and high 2 pressure, air cooled condenser 3, evaporator 4, industrial vessel 5, throttle valves 6 and 7, and connecting pipes 8, 9, 10, 11, 12, 13, 14, 15, 16 with shut-off valves 17, 18, 19, 20, 21, 22, 23, 24.
Установка работает следующим обра10 зом. Компрессор 1 всасывает пары хладагента из испарител 4 по трубопроводу 10 и нагнетает их по трубопроводу 8 в пром - сосуд 5, откуда пары по трубопроводу 9 поступают в компрессор 2, а затем по бопроводу 11 в конденсатор 3 воздушного охлаждени , где конденсируютс . Жидкий хладагент из конденсатора 3 по трубопроводу 13 дросселируетс через вентиль 6 в промсосуд 5, а оттуда через вентиль 7 по трубопроводу 12 в испаритель 4. Запорные вентили 22, 23, 24 закрыты, а вентили 17, 18, 19, 20, 21 открыты.The installation works as follows. The compressor 1 draws refrigerant vapor from the evaporator 4 through line 10 and pumps them through line 8 into the prom-vessel 5, from where the pairs go through line 9 to compressor 2 and then through line 11 to air-cooled condenser 3, where they condense. Liquid refrigerant from condenser 3 through line 13 is throttled through valve 6 into industrial vessel 5, and from there through valve 7 through line 12 into evaporator 4. Stop valves 22, 23, 24 are closed, and valves 17, 18, 19, 20, 21 are open.
При низкой температуре наружного воздуха , когда давление конденсации станоAt low outdoor temperature when the condensing pressure becomes
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792809190A SU853311A1 (en) | 1979-08-16 | 1979-08-16 | Double-stage cooling unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792809190A SU853311A1 (en) | 1979-08-16 | 1979-08-16 | Double-stage cooling unit |
Publications (1)
Publication Number | Publication Date |
---|---|
SU853311A1 true SU853311A1 (en) | 1981-08-07 |
Family
ID=20846103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792809190A SU853311A1 (en) | 1979-08-16 | 1979-08-16 | Double-stage cooling unit |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU853311A1 (en) |
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1979
- 1979-08-16 SU SU792809190A patent/SU853311A1/en active
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