Dehumidifying air conditioner

A dehumidifying air-conditioning apparatus comprising a path for processing air from which moisture is adsorbed by a first desiccant and thereafter cooled by a low temperature heat source of a heat pump and a path for regenerating air which is heated by a high temperature heat source of the heat pump and thereafter passes through the first desiccant that has adsorbed the moisture to desorb the moisture from the first desiccant, the arrangement being such that the processing air and the regenerating air flow alternately through the first desiccant, characterized by:

• at least one adsorption heat pump, as the heat pump, having first and second heat exchanger assemblies of closed structure each having a desiccant heat exchanger with a second desiccant for adsorbing or desorbing a refrigerant and a refrigerant heat exchanger for evaporating or condensing the refrigerant, said refrigerant heat exchangers of the first and second heat exchanger assemblies communicating with each other via a path through a restriction;
• the arrangement being such that the processing air and the regenerating air flow alternately through the refrigerant heat exchangers of the first and second heat exchanger assemblies of the adsorption heat pumps, and a heating medium for driving the adsorption heat pumps is guided to and heated by the desiccant heat exchangers directly in communication with the refrigerant heat exchangers through which the regenerating air flows.