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Title:
CLASS 2 ABSORPTION HEAT PUMP
Document Type and Number:
Japanese Patent JPS6467571
Kind Code:
A
Abstract:

PURPOSE: To suppress mixing of absorbing liquid stored in an absorber with refrigerant liquid in an evaporator by starting an absorption liquid pump after the pressure in the absorber or the pressure in an evaporator or the refrigerant temperature having correlation with the pressure in the absorber has increased sufficiently.

CONSTITUTION: When an operating switch is closed, a refrigerant pump 7 is started to feed refrigerant through tubes 11, 12 into an evaporator 3 and when the liquid level of refrigerant exceeds a lower limit, it is detected by a liquid level switch 44 and a refrigerant circulation pump 8 is started. When the refrigerant pump 7 and the refrigerant circulation pump 8 operates continuously, pressure in the evaporator 3 and an absorber 4 and the refrigerant temperature of the evaporator increase gradually and when the set level of a pressure detector 45 is exceeded, a controller 46 starts an absorption liquid pump 6 to feed absorption liquid to the absorber 4. Since the pressure in the absorber 4 is sufficiently high, absorption liquid in a solution reservoir 37 is fed through tubes 18, 19 to a generator 1 and stored gradually in the solution reservoir 37. Consequently, it is prevented from being mixed with refrigerant in the evaporator 3.


Inventors:
YAMAZAKI YUKIOKU
IKUMI YONEZO
TANAKA TAKAO
Application Number:
JP1987000223379
Publication Date:
March 14, 1989
Filing Date:
September 07, 1987
Export Citation:
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Assignee:
SANYO ELECTRIC CO
International Classes:
F25B30/04; F25B15/00; (IPC1-7): F25B15/00
Domestic Patent References:
JPS60108665A1985-06-14
JPS61140757A1986-06-27