ABSORPTION TYPE COOLING AND HEATING MACHINE IN WHICH EXHAUST GAS HEAT RECOVERING UNIT IS INSTALLED IN EXHAUST GAS DUCTS FOR PERFORMING HEAT EXCHANGE BETWEEN DILUTE SOLUTION FLOWING IN PART BETWEEN LOW-TEMPERATURE HEAT EXCHANGER AND HIGH-TEMPERATURE HEAT EXCHANGER OF DILUTE SOLUTION CONDUIT, AND EXHAUST GAS FLOWING IN EXHAUST GAS DUCTS

摘要

PURPOSE: An absorption type cooling and heating machine is provided to improve the utilization efficiency of exhaust heat without complicating constitution and control. CONSTITUTION: An exhaust gas burning regenerator(1) uses exhaust gas from an apparatus generating the exhaust gas as a heat source. Exhaust gas ducts(13,15) allow the exhaust gas to flow to the exhaust gas burning regenerator. A dilute solution conduit(25) guides a dilute solution from an absorber(9) to the exhaust gas burning regenerator. A low-temperature heat exchanger(49) is installed at an upstream side with respect to a flow of the dilute solution flowing in the dilute solution conduit for heat-exchanging with a concentrated solution. A high-temperature heat exchanger(47) is installed at a downstream side with respect to the flow of the dilute solution flowing in the dilute solution conduit for heat-exchanging with a solution of intermediate concentration. An exhaust gas heat recovering unit(51) is installed in the exhaust gas ducts for performing the heat exchange between the dilute solution flowing in a part between the low-temperature heat exchanger and the high-temperature heat exchanger of the dilute solution conduit, and the exhaust gas flowing in the exhaust gas ducts.