Dehumidifier for a compressor, 1-stage compressing-absorbing type heat pump system and 2-stage compressing-absorbing type heat pump system

PURPOSE: A dehumidifier for a compressor, a single-stage compression-absorption type heat pump system, and a two-stage compression-absorption type heat pump system are provided to reduce damage to the compressor. CONSTITUTION: A dehumidifier for a compressor comprises first and second dehumidification members(11,12), a first flow passage control valve(30), and a second flow passage control valve(20). The first and second dehumidification members absorb the moisture. The first flow passage control valve includes: a first inlet where gaseous refrigerant of low temperature flows; a second inlet where gaseous refrigerant of high temperature and high pressure flows; a first through-hole communicated with the first dehumidification member; and a second through-hole communicated with the second dehumidification member. The second flow passage control valve includes: a first outlet communicated with an inlet of the compressor; a second outlet communicated with an external device; a third through-hole communicated with the first dehumidification member; and a fourth through-hole communicated with the second dehumidification member. [Reference numerals] (AA) Absorber; (BB) Compressor inlet; (CC) Desorber; (DD) Compressor outlet