Solution desiccant air handling device circularly driven by multiple stages of heat pumps

TLDR: In this article, a solution desiccant air handling device circularly driven by multiple stages of heat pumps is described. But the authors do not specify the type of solution desicant they used.

Abstract: The invention relates to a solution desiccant air handling device circularly driven by multiple stages of heat pumps. The solution desiccant air handling device comprises a countercurrent packing tower dehumidifier, a countercurrent packing tower regenerator, two solution pumps, a solution heat exchanger and more than two stages of heat pump circulating systems, wherein the heat pump circulating systems are arranged between the dehumidifier and the regenerator; each heat pump circulating system comprises a throttle valve, a compressor, a condenser and an evaporator which are connected in sequence through refrigerant pipes; the casings of the condensers are connected in series in sequence; the casings of the evaporators are connected in series in sequence; and solution at the bottom of the dehumidifier is connected with one solution pump, one heat exchange pipe of the solution heat exchanger and the serially connected condensers in sequence through pipes to reach the inlet at the upper part of the regenerator, performs heat transfer and mass transfer with regenerated air in the regenerator, then reaches the outlet at the bottom of the regenerator to be connected with the other solution pump, the other heat exchange pipe of the solution heat exchanger and the serially connected evaporators in sequence through pipes to return to the inlet at the upper part of the dehumidifier, performs heat transfer and mass transfer with treated air in the dehumidifier and then returns to the outlet at the bottom of the dehumidifier.