• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1380758 Refrigerating STAL REFRIGERATION AB 8 Dec 1972 [22 Dec 1971] 56685/72 Heading F4H In a compression-condensation refrigeration system, oil and refrigerant pass from the compressor 2 through a line 16 to an oil separator 3 from which the refrigerant flows to a condenser 5 and thence through a line 8 to an oil cooler 7 before return through a line 11 to an intake 10 in the compressor which is located at a point where the pressure substantially corresponds to the pressure of the refrigerant when it leaves the oil cooler. A regulating valve 9 in the line 8 controls flow of refrigerant to the cooler in response to the temperature of the refrigerant either on the outlet side of the cooler or the compressor as sensed by thermostats 17, 17<SP>1</SP>. A constant pressure valve 12 may be located in the line 11. As shown, a pump 13 passes the oil from a container 4 through the cooler to the compressor for lubrication purposes, the oil and refrigerant being maintained in separate paths (Fig. 5). Alternatively the oil and refrigerant are mixed together in the oil cooler to cool the oil, the vapourized refrigerant and oil returning separately to the compressor.
    公开号:SU884584A3
    申请号:SU721865682
    申请日:1972-12-20
    公开日:1981-11-23
    发明作者:Брандин Торе；Лундберг Андерс
    申请人:Сталь Рефриджерейшн А.Б. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to oil cooling systems for rotary type compressor oil and may be used in the refrigeration industry. A refrigeration oil system of a refrigeration compressor of a rotary type, containing an oil separator connected to the compressor’s discharge side and a condenser, an oil cooler connected at the inlet to the condenser through a pipe fitted with a thermal control valve, and to the lower cavity of the oil separator, and at the outlet connected to an additional Inlet of compressor 1. A disadvantage of this cooling system is the slowed down process of cooling the oil, which leads to an increase in the overall dimensions of the system. The purpose of the invention is to intensify the process of cooling the oil. This goal is achieved by the fact that the oil cooler is of the mixing type and is supplied with a pressure regulator on the communication line with the auxiliary input of the compressor. The drawing shows schematically the proposed cooling system. The cooling system of oil of a refrigeration compressor 1 of a rotary type contains an oil separator 2 connected to the discharge side of compressor 1, a condenser 3, an oil cooler: 4 connected at the inlet to the condenser 3 by means of a pipe 5 fitted with a thermal control valve 6, and to the lower cavity of the oil separator 2 through a pump 7, and the output is connected to the auxiliary input of the compressor 1 by a communication line 8, equipped with a pressure regulator 9. The oil cooler 4 is of a mixing type. The mixture of working medium and oil is sucked from the low pressure side by compressor 1, compressed and directed to oil separator 2, where the oil is separated. The separated medium enters the condenser 3, where it is condensed and the condensate formed through the pipe 5 enters the oil cooler 4. The oil from the lower cavity of the oil tallow 2 is pumped by pump 7 into
    The oil cooler 4, where it mixes with the condensate of the working medium, is cooled and the formed mixture is supplied to the additional entrance to the compressor from the low pressure side of the connection 8.
    The amount of condensate of the working medium is regulated by a thermoregulatory valve 6 controlled by the temperature of the mixture of working medium with oil.
    The temperature of the mixture can serve as a regulating temperature.
    at the outlet of the compressor 1 or at the outlet of the oil cooler 4.
    The temperature of the mixture at the outlet of the oil cooler 4 is controlled by means of a pressure regulator 9, which changes the pressure of the mixture and, accordingly, the temperature.
    The implementation of the oil cooler by mixing and the presence of a pressure regulator on the LINE of communication of the oil cooler with an additional compressor inlet intensifies the process of oil cooling and reduces the overall size of the system.
    权利要求:
    Claims (1)
    [1]
    1. US patent 2684579, CL 62-468, published. 1954.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU884584A3|1981-11-23|Oil cooling system of cooling rotary compressor
    US3368364A|1968-02-13|Refrigeration control system
    ES2043578T3|1994-05-01|COMPRESSOR SYSTEM WITH DEMAND REFRIGERATION.
    FR2446511A1|1980-08-08|CONTROL DEVICE FOR A HOT GAS BYPASS VALVE FOR CENTRIFUGAL LIQUID COOLING SYSTEM
    US2776542A|1957-01-08|Motor cooling means for hermetically sealed refrigerant compressor unit
    US4558573A|1985-12-17|Device for oil cooling in a compression unit and, particularly, a screw compression unit
    GB1473086A|1977-05-11|
    GB952299A|1964-03-11|Refrigeration apparatus
    US2510887A|1950-06-06|Means for cooling cylinder walls of compressors
    US3145543A|1964-08-25|Means for controlling the head pressure in refrigerating systems
    GB1220131A|1971-01-20|Refrigeration system and systems for cooling and controlling compressors
    US3261172A|1966-07-19|Coolant system for hermetically sealed motor
    US3369374A|1968-02-20|Capacity control for refrigeration systems
    US2206115A|1940-07-02|Air conditioning apparatus
    JPS6490961A|1989-04-10|Refrigeration circuit
    US3161029A|1964-12-15|Refrigeration systems operable at low condenser pressures
    GB652162A|1951-04-18|Thermo-pump heating systems
    US2042394A|1936-05-26|Art of purging and rectifying oil in refrigerator systems
    US2959937A|1960-11-15|Refrigeration system for air conditioning units
    JPH03105160A|1991-05-01|Screw type freezer
    US4240263A|1980-12-23|Refrigeration system - method and apparatus
    US3323318A|1967-06-06|Low ambient head pressure stabilizer system
    US3006162A|1961-10-31|Compressor motor cooling arrangement for reversible refrigeration system
    US3088291A|1963-05-07|Refrigerating apparatus for vehicles
    US2603954A|1952-07-22|Variable output refrigeration system
    同族专利:
    公开号 | 公开日
    JPS4870934A|1973-09-26|
    SE360168B|1973-09-17|
    JPS538055B2|1978-03-24|
    DE2261091A1|1973-06-28|
    GB1380758A|1975-01-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2155051A|1937-06-03|1939-04-18|Sulzer Ag|Apparatus for the compression of gases|
    US2684579A|1951-06-04|1954-07-27|Hieatt Engineering Co|Apparatus for cooling oil of refrigerant compressors|
    US3577742A|1969-06-13|1971-05-04|Vilter Manufacturing Corp|Refrigeration system having a screw compressor with an auxiliary high pressure suction inlet|US3795117A|1972-09-01|1974-03-05|Dunham Bush Inc|Injection cooling of screw compressors|
    JPS5129362U|1974-08-28|1976-03-03|
    JPS5274549U|1975-12-02|1977-06-03|
    JPS5283061U|1975-12-19|1977-06-21|
    DE3622805A1|1986-07-07|1988-01-21|Ruhrgas Ag|Method and arrangement for operating a compression-heat pump|
    JPH0379959A|1989-08-22|1991-04-04|Daikin Ind Ltd|Refrigeration apparatus|
    DE4122889C1|1991-07-11|1992-12-17|Bitzer Kuehlmaschinenbau Gmbh & Co Kg, 7032 Sindelfingen, De|
    BR9307842A|1993-03-31|1996-01-02|American Standard Inc|Compressor lubricant cooling in a refrigeration system|
    US6065297A|1998-10-09|2000-05-23|American Standard Inc.|Liquid chiller with enhanced motor cooling and lubrication|
    WO2014117015A1|2013-01-25|2014-07-31|Trane International Inc.|Refrigerant cooling and lubrication system with refrigereant source access from an evaporator|
    WO2018179190A1|2017-03-29|2018-10-04|株式会社日立産機システム|Liquid-feed type gas compressor|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1646371A|SE360168B|1971-12-22|1971-12-22|
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