초록 ▼

A high efficiency open-cycle absorptive approach to compressing steam or other vapor is disclosed, especially useful for industrial evaportion via recompression. Referring to FIG. 1, low pressure steam from evaporator 1 is absorbed in an aqueous absorbent solution so as to release heat in both absor

A high efficiency open-cycle absorptive approach to compressing steam or other vapor is disclosed, especially useful for industrial evaportion via recompression. Referring to FIG. 1, low pressure steam from evaporator 1 is absorbed in an aqueous absorbent solution so as to release heat in both absorber 7 and GAX exchanger 8. External heat is applied to generator 12. Steam at higher pressure is desorbed from both gnerator 12 and GAX exchanger 8, and used to heat evaporator 1. Absorber 7 heat is also used to heat and evaporate the mixture undergoing evaporation.

대표청구항 ▼

Apparatus for increasing the pressure of water vapor from an initial pressure to a delivery pressure which is greater than the initial pressure by a factor of about 2 or less, using a quantity of heat which is no more than about 45% of the latent heat content of said water vapor, comprised of: (a) a

Apparatus for increasing the pressure of water vapor from an initial pressure to a delivery pressure which is greater than the initial pressure by a factor of about 2 or less, using a quantity of heat which is no more than about 45% of the latent heat content of said water vapor, comprised of: (a) a generator; (b) a means for supplying an aqueous absorbent solution to said generator; (c) a means for supplying heat to said generator; (d) a means for withdrawing water vapor at a pressure at least as high as the delivery pressure from said generator; (e) a generator-absorber-heat-exchanger (GAX exchanger) having an absorption component and a desorption component which are in heat exchange relationship; (f) a means for supplying part of said water vapor at the initial pressure to said GAX exchanger absorption component; (g) a means for routing said aqueous absorbent solution from said generator to said GAX exchanger absorption component; (h) a means for withdrawing water vapor at said delivery pressure from said GAX exchanger desorption component; (i) an absorber; (j) a means for supplying the remaining part of said water vapor at the initial pressure to said absorber; (k) a means for routing said aqueous absorbent solution from said GAX exchanger absorption component to said absorber; and (l) a pump for routing said aqueous absorbent solution from said absorber to the GAX exchanger desorption component.