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Title:
HEAT PUMP SYSTEM
Document Type and Number:
Japanese Patent JP2012087985
Kind Code:
A
Abstract:

To provide a heat pump system in which oil can be circulated while keeping a refrigerant in a heating gas even if a load is abruptly fluctuated.

A heat pump system includes a compressor for compressing a refrigerant, an oil separator for separating oil contained in the compressed refrigerant, a first heat exchanger for radiating the heat of the refrigerant in which the content of oil is decreased by the oil separator, a pressure reduction section for reducing the pressure of the refrigerant which is heat-radiated by the first heat exchanger, a second heat exchanger which makes the pressure-reduced refrigerant absorb heat, a third heat exchanger for radiating the heat of oil separated by the oil separator and heating the refrigerant heat-absorbed by the second heat exchanger, and an accumulator for separating a liquid phase from the refrigerant heated by the third heat exchanger and making the compressor suck the refrigerant from which the liquid phase has been separated, and oil heat-radiated by the third heat exchanger is sucked by the compressor together with the refrigerant from which the liquid phase has been separated by the accumulator.


Inventors:
Omura, Minemasa
Yoshida, Shigeru
Okada, Takuya
Application Number:
JP2010000234825
Publication Date:
May 10, 2012
Filing Date:
October 19, 2010
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F25B1/00
Domestic Patent References:
JP2008128259A2008-06-05
JP2006023002A2006-01-26
JPH11294872A1999-10-29
JP2010032196A2010-02-12
JP2008002790A2008-01-10
JP2008128259A2008-06-05
JP2006023002A2006-01-26
Attorney, Agent or Firm:
酒井 宏明
高村 順