BigPatents India

A chemical heat pump comprising a main reactor including a first space, main condenser/evaporator including a second space, an active substance located in the first space and a volatile liquid, the vapor phase of which in a discharging step is absorbed by the active substance at a first temperature and in a charging step is desorbed by the active substance at a second higher temperature, the active substance having at the first temperature a solid state from which the active substance having at the first temperature a solid state from which the active substance when absorbing the vapor phase of the volatile liquid directly partly passes to a liquid state or solution phase of the volatile liquid directly partly passes to a liquid state or solution phase and having at the second temperature a liquid state or existing in a solution phase, from which the active substance, when in the charging step desorbing the volatile liquid, directly partly passes to a solid state, the vapor phase of the volatile liquid ,in the charging step, after being desorbed by the active substance, being condensed to a liquid phase in the second space, which through a first conduit connecting the main reactor and main condenser/evaporator to the each other is in fluid connection with the first space , and the liquid phase of the volatile liquid being, in the discharging step, converted to the vapor phase while the active substance absorbs the vapor phase, a first heat exchanger having a surface in the first space for maintaining , in the discharging step when the active substance absorbs the vapor phase, a first heat exchanger having a surface in the first space for maintaining, in the discharging step when the active substance successively passes from a solid to a liquid state while absorbing the volatile liquid, the active substance in a sold state an liquid state at the first temperature, characterized by separation means in the first space to separate the active substance in the solid state from the active substance in the liquid state or solution phase and distribution means to make the separated active substance in the liquid state or solution phase pass in contact with said surface of the first heat exchanger and the active substance in the solid state.