Dehumidifier for a compressor in compression-absorption heat pump system

摘要

A dehumidifier for a compressor, including: a plurality of dehumidifying members that absorb moisture; and a flow passage controlling valve module that enables a low-temperature vapor refrigerant to alternately flow into the plurality of dehumidifying members and enables the low-temperature refrigerant to flow into a compressor in a state where moisture contained in the low-temperature refrigerant is absorbed and is removed, enables a high-temperature vapor refrigerant ejected from the compressor to alternately flow into the dehumidifying members and regenerates the dehumidifying members. Thus, since a liquid-state absorbent contained in a refrigerant flowing into the compressor is removed by the dehumidifier, damage caused by liquid compression and corrosion of the compressor can be reduced. In addition, the structure of the dehumidifier is simple, and an additional external heating source is not required.

主权项

1. A dehumidifier for a compressor, the dehumidifier comprising:
a first dehumidifying member and a second dehumidifying member configured to absorb moisture; a first flow passage controlling valve comprising a first inlet through which a low-temperature vapor refrigerant flows, and a second inlet through which a high-temperature and high-pressure vapor refrigerant flows, a first communication pipe configured to communicate with the first dehumidifying member, and a second communication pipe configured to communicate with the second dehumidifying member, wherein a first operating mode is activated by ejecting low-temperature refrigerant from the first inlet which is discharged to the second dehumidifying member, wherein moisture contained in the low-temperature refrigerant is absorbed and the high-temperature refrigerant is simultaneously ejected from the second inlet that is discharged to the first dehumidifying member so that the first dehumidifying member is regenerated, and a second operating mode is activated by ejecting low-temperature refrigerant from the first inlet which is discharged to the first dehumidifying member, wherein moisture contained in the low-temperature refrigerant is absorbed and the high-temperature refrigerant is simultaneously ejected from the second inlet that is discharged to the second dehumidifying member so that the second dehumidifying member is regenerated, wherein the first flow passage controlling valve further comprises: a first cylinder; a first double head piston having two ends each having a single piston head operated in forward or backward movement along a horizontal direction within the first cylinder; a first communication member, fixed to a middle of the first double head piston, moving as a one body with the first double head piston in the first operating mode, the first inlet communicating with the first communication pipe in the second operating mode, a first controller configured to control forward or backward movement of the first double head piston, wherein the first operating mode and the second operating mode are alternately activated by forward or backward movement of the first double head piston; and a second flow passage controlling valve comprising a first outlet that communicates with an inlet of the compressor, a second outlet that communicates with an external device, a third communication pipe that communicates with the first dehumidifying member, and a fourth communication pipe that communicates with the second dehumidifying member, wherein the second flow passage controlling valve further comprises: a second cylinder; a second double head piston having two ends each having a single piston head operated in forward or backward movement along the horizontal direction within the second cylinder; a second communication member, fixed to a middle of the second double head piston, moving as a one body with the second double head piston in the first operating mode, the second inlet communicating with the second communication pipe in the second operating mode, a second controller configured to control forward or backward movement of the second double head piston, wherein the first flow passage controlling valve is arranged at an upper portion of the first and second dehumidifying members, and the second flow passage controlling valve is arranged at a lower portion of the first and second dehumidifying members, and the first double head piston is symmetrically arranged with the second double head piston, and wherein the first operating mode is enabled in which the refrigerant dehumidified by the second dehumidifying member is discharged to the compressor via the first outlet and the refrigerant used in regenerating the first dehumidifying member is discharged to the external device via the second outlet, and the second operating mode is enabled in which the refrigerant dehumidified by the first dehumidifying member is discharged to the compressor via the first outlet and the refrigerant used in regenerating the second dehumidifying member is discharged to the external device via the second outlet.