Absorption refrigerating machine

Refrigeration – Refrigeration producer – Sorbent type

Reexamination Certificate

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Details

C062S484000

Reexamination Certificate

active

07316126

ABSTRACT:
The present invention provides a high-efficiency absorption refrigerating machine which can recover heat from a heat source and can efficiently recover heat from an internal cycle. The absorption refrigerating machine includes an evaporator, an absorber (A), a condenser (C), a high-temperature regenerator (GH), a low-temperature regenerator (GL), a low-temperature solution heat exchanger (LX), and solution paths and refrigerant paths by which these units are connected. The absorption refrigerating machine further comprises two branch solution paths branched from a solution supply path through which a dilute solution is introduced from the absorption (A) to the high-temperature regenerator (GH). On one of the branch solution paths, there is disposed a drain heat exchanger (DX) operable to perform heat exchange between the dilute solution in the branch solution path and an exhaust heat source which has heated the high-temperature regenerator (GH). On the other of the branch solution paths, there are disposed a first high-temperature solution heat exchanger (HX1) and a second high-temperature solution heat exchanger (HX2) operable to perform heat exchange between the dilute solution in the branch solution path and a concentrated solution heated and concentrated in the high-temperature regenerator (GH). The absorption refrigerating machine is configured such that the dilute solution flows through the first high-temperature solution heat exchanger (HX1) and the second high-temperature solution heat exchanger (HX2) in this order, and the concentrated solution discharged from the high-temperature regenerator flows through the second high-temperature solution heat exchanger (HX2) and the first high-temperature solution heat exchanger (HX1) in this order.

REFERENCES:
patent: 5345786 (1994-09-01), Yoda et al.
patent: 6477852 (2002-11-01), Dodo et al.
patent: 6769266 (2004-08-01), Dodo et al.
patent: 2777427 (1998-05-01), None
patent: 10-160276 (1998-06-01), None
patent: 2003-065624 (2003-03-01), None
patent: 2003-121021 (2003-04-01), None

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