초록 ▼

A Vapor Recompression Absorber (VRA) for reprocessing a concentrated solution of water refrigerant and Lithium-Bromide salt from at least one solution concentrator in a closed chiller system, the VRA being comprised of an upper heat-in absorption chamber and a lower heat-out evaporation chamber and

A Vapor Recompression Absorber (VRA) for reprocessing a concentrated solution of water refrigerant and Lithium-Bromide salt from at least one solution concentrator in a closed chiller system, the VRA being comprised of an upper heat-in absorption chamber and a lower heat-out evaporation chamber and sump separated by a thin polymer heat transfer wall, strong solution from the system applied as a falling film to the heat-in side is recirculated, while strong solution applied as a falling film to the heat-out side and evaporation therefrom transported by a vapor compressor to the absorption chamber and condensed for recirculation, the sump solution being being strengthened and delivered to and evaporated in the absorber of the chiller system for maximized chilling of a water distribution system.

대표청구항 ▼

[ I claim:] [1.] A water vapor recompression absorber in a closed absorption chiller system comprised of at least one concentrator to which heat is applied to vaporize a water refrigerant and to concentrate an absorbent solution of said water refrigerant and a sorbent material, having compressor mea

[ I claim:] [1.] A water vapor recompression absorber in a closed absorption chiller system comprised of at least one concentrator to which heat is applied to vaporize a water refrigerant and to concentrate an absorbent solution of said water refrigerant and a sorbent material, having compressor means for cooling and liquifying said vaporized water refrigerant, having an evaporator means for chilling said water refrigerant by means of evaporation, there being a heat-in coil from warmer system water that is chilled thereby and which discharges heat to vaporize said water refrigerant, having an absorber for condensing the vaporized refrigerant and for its absorption into the absorbent solution, there being a heat-out coil to pick up and discharge the heat of vaporization and the heat of dilution from the system, and pump means for returning the absorbent solution to the at least one concentrator for recycling through said closed system, the water vapor recompression absorber including, an upper vapor absorption chamber and a lower vapor evaporation chamber, there being a vertically disposed heat transfer wall between and separating the two chambers, pressure means for discharging strong absorbent solution from the system concentrator and onto a heat-in side of the heat transfer wall exposed into the absorption chamber, collection means for recirculating weakened solution from the heat-in side of the heat transfer wall and to the system concentrator, vapor compressor means for transporting refrigerant vapor from the evaporation chamber and into the absorption chamber at increased pressure while lowering vapor pressure in the evaporation chamber, there being a sump open from the evaporation chamber for collection of strong solution, pump means for discharging the strong solution from the sump and onto the heat-out side of the heat transfer wall exposed to the evaporation chamber, and a strong absorbent solution line from the sump discharging into the absorber of the chiller system,whereby the chilling effect applied to the heat-in coil of the chiller system is maximized.