Dehumidification system

The dehumidification system comprises a dehumidification assembly, the dehumidification assembly comprises a dehumidification channel, a regeneration channel and two or more dehumidification rotating wheels, each dehumidification rotating wheel comprises a dehumidification area and a regeneration area, the dehumidification areas are arranged in the dehumidification channel, the regeneration areas are arranged in the regeneration channel, the dehumidification channel comprises a preheater, and the preheater is arranged on the upstream of the dehumidification areas; the regeneration channel is provided with a first heater corresponding to each dehumidification rotating wheel, and the first heaters are arranged on the upstream of the regeneration area of the corresponding dehumidification rotating wheel; and the heating assembly comprises a first-stage heating piece and a second-stage heating piece arranged on the downstream of the first-stage heating piece, the first-stage heating piece is connected with the preheater, and the second-stage heating piece is connected with the first heaters. According to the dehumidification system provided by the embodiment of the invention, the dehumidification requirement can be met, the transmission loss can be reduced, and the energy efficiency ratio is higher.