The invention discloses a low-grade heat-driven adsorption type
refrigeration and
heat pump circulating device adopting
chemical reaction and a method utilizing the same. The device comprises a
refrigerant circulation loop, an adsorption loop, an analysis loop and an operating
fluid circulation loop. The high-temperature high-pressure gaseous
refrigerant ammonia gas and
carbon dioxide analyzed byadsorbers enter a
chemical reaction cooler to be absorbed by an operating fluid to generate
ammonium carbamate, the heat is output, and the product is dissolved in the operating fluid; the
mixed solution passes through a heat regenerator, a throttling device and enters a
chemical reaction evaporator; the
ammonium carbamate is decomposed to generate the
ammonia gas and the
carbon dioxide, the
ammonia gas and the
carbon dioxide are evaporated, the cold energy is output, the
ammonia gas and the carbon dioxide are adsorbed and analyzed by the adsorbers to form a circulation, and the two adsorbersalternately adsorb and analyze through opening or closing a valve to realize continuous output of cold energy or
heat energy. According to the device and the method, the reversible chemical reactionis used for realizing the
refrigeration and heating, compared with phase-change
refrigeration and heating, the device and the method is higher in performance coefficient, capable of realizing efficient utilization of low-grade
heat energy and has no damage to the environment.