Patent ID: 7624588

Claim:
A hybrid absorption chiller, which uses high-temperature steam and medium-temperature water, the hybrid absorption chiller comprising: a high temperature generator that uses the high-temperature steam as a heat source so that a heat exchange for a phase separation from a weak solution is carried out to make a primary refrigerant vaporized; a low temperature generator that uses the heat of condensation of the primary refrigerant, generated in the high temperature generator, as a heat source so that the heat exchange to generate a secondary refrigerant is carried out; a generator for medium temperature water that uses the medium-temperature water as a heat source so that the heat exchange to generate a tertiary refrigerant is carried out; a hybrid condenser that simultaneously or selectively depending on cooling operation modes dominated by option of the heat sources condenses the primary refrigerant, the secondary refrigerant and the tertiary refrigerant respectively generated or made in the high temperature generator, the low temperature generator, and the generator for medium temperature water; an evaporator that uses latent heat of vaporization of the primary refrigerant, the secondary refrigerant and the tertiary refrigerant condensed in the hybrid condenser so as to obtain chilled water; an absorber that receives a strong solution from the low temperature generator and the generator for medium temperature water and absorbs the refrigerant evaporated by obtaining latent heat of vaporization in the evaporator so as to produce the weak solution; and solution pumps that are installed in both sides of the absorber so as to supply the weak solution produced in the absorber to the high temperature generator and the generator for medium temperature water, respectively.