An absorption water cooling and warming machine comprises: a absorber; a low-temperature generator; an exhaust heat recovery generator; a high-temperature generator; a refrigerator; an evaporator; liquor path and refrigerant path for connecting the absorber, low-temperature generator, exhaust heat recovery generator, high-temperature generator, refrigerator and the evaporator; exhaust gas path for guiding the high-temperature exhaust gas into the high-temperature generator and then guiding to exhaust heat recovery generator. The liquor path includes the path for making the diluted liquor flowing from the absorber diffluent and flows respectively into the high-temperature generator and the exhaust heat recovery generator, and the path for making the diluted liquor that have been heated and condensed to medium concentration by the high-temperature exhaust gas in the high-temperature generator flows into the low-temperature generator from the high-temperature generator. The liquor with medium concentration guided into the low-temperature generator is heated and condensed by the refrigerant steam that generated in the high-temperature generator and used as hot source, the diluted liquor guided into the exhaust heat recovery generator is heated and condensed by the exhaust gas that flows through the high-temperature generator. |