Patent ID: 6474099
Filing Date: 2002-11-05
Classification: F25B,Y02A,Y02B

Abstract:
An adsorption-type cooling apparatus comprising:first, second, third, and fourth adsorption devices, each of said first, second, third, and fourth adsorption devices are filled with a coolant and contain an adsorbent which adsorbs evaporated coolant and desorbs adsorbed coolant during heating, each of said first, second, third, and fourth adsorption devices having an adsorption core, each said adsorption core providing heat exchange between a respective said adsorbent and a heating medium; evaporation and condensation cores providing heat exchange between a heating medium and the coolant; a cooling device in which heating medium cooled in said evaporation and condensation cores circulates and cools an object of cooling; heating means supplying a high-temperature heat medium to said first, second, third and fourth adsorption devices; cooling means supplying a low-temperature heat medium which has a temperature lower than that of said high-temperature heat medium to said first, second, third and fourth adsorption devices; switching control means which switches between: a first state where a heating medium is circulated between said cooling device and evaporation and condensation cores of said first and second adsorption devices, said low-temperature heat medium is circulated to said adsorption core of said first adsorption device, heating medium exiting said cooling device is circulated to said adsorption core of said second adsorption device while said high-temperature heat medium is circulated to said adsorption cores of said third and fourth adsorption devices and said low-temperature heat medium is circulated to the evaporation and condensation cores of said third and fourth adsorption devices; a second state in which a heat medium is circulated between said cooling device and evaporation and condensation cores of said first and second adsorption devices, said low-temperature heat medium is circulated to said adsorption cores of said first and second adsorption devices while said high-temperature heat medium is circulated to said adsorption cores of said third and fourth adsorption devices and said low-temperature heat medium is circulated to the evaporation and condensation cores of said third and fourth adsorption devices; a third state in which said low-temperature heat medium is supplied to the inlet openings of evaporation and condensation cores of said first and second adsorption devices and said high-temperature heat medium is supplied to inlet openings of said adsorption cores of said first and second adsorption devices while said low-temperature heat medium is supplied to the inlet openings of said adsorption cores of said third and fourth adsorption devices and heating medium exiting said cooling device is supplied to the evaporation and condensation cores of said third and fourth adsorption devices; a fourth state where said low-temperature heat medium is circulated to the evaporation and condensation cores of said first and second adsorption devices and said high-temperature heat medium is circulated to said adsorption cores of said first and second adsorption devices while said low-temperature heat medium is circulated to said adsorption cores of said third and fourth adsorption devices, wherein the circulation of this heat medium is terminated when said evaporation and condensation cores of said third and fourth adsorption devices were filled with heating medium exiting said cooling device; a fifth state where a heat medium is circulated between said cooling device and evaporation and condensation cores of said third and fourth adsorption devices, said low-temperature heat medium is circulated to said adsorption core of said third adsorption device and heating medium exiting said cooling device is circulated to said adsorption core of said fourth adsorption device, wherein while said high-temperature heat medium is circulated to said adsorption cores of said first and second adsorption devices and said low-temperature heat medium is circulated to the evaporation and condensation cores of said first and second adsorption devices; a sixth state in which a heat medium is circulated between said cooling device and evaporation and condensation cores of said third and fourth adsorption devices and said low-temperature heat medium is circulated to said adsorption cores of said third and fourth adsorption device while said high-temperature heat medium is circulated to said adsorption cores of said first and second adsorption devices and said low-temperature heat medium is circulated to the evaporation and condensation cores of said first and second adsorption devices; a seventh state in which said low-temperature heat medium is supplied to evaporation and condensation cores of said third and fourth adsorption devices and said high-temperature heat medium is supplied to the inlet openings of adsorption cores of said third and fourth adsorption device while said low-temperature heat medium is supplied to the inlet openings of said adsorption cores of said first and second adsorption devices and heating medium exiting said cooling device is supplied to the evaporation and condensation cores of said first and second adsorption devices; and an eighth state in which said low-temperature heat medium is circulated to the evaporation and condensation cores of said third and fourth adsorption devices and said high-temperature heat medium is circulated to said adsorption cores of said third and fourth adsorption device while said low-temperature heat medium is circulated to said adsorption cores of said first and second adsorption devices, wherein the circulation of this heat medium is terminated when the evaporation and condensation cores of said first and second adsorption devices were filled with heating medium exiting said cooling device; and wherein said switching control means has a first switching control pattern in which the states are switched in an order of the first state, second state, third state, fourth state, fifth state, sixth state, seventh state, eighth state, first state.