DEHUMIDIFICATION SYSTEM FOR DRY ROOM

PROBLEM TO BE SOLVED: To provide a dehumidification system for a dry room which has a simple structure, and exhibits an excellent energy conservation effect.SOLUTION: A heat exchanger 12 and a re-heat heater 13 are located on a first vent pipe line 3 on an output side of a dehumidification rotor 1 (adsorption zone 1a) in order from an upstream side. A bypass pipe line 14 is provided on a coolant pipe line on a high pressure side of a refrigeration cycle 6 for cooling air on an input side of the dehumidification rotor (adsorption zone). The bypass pipe line extends through the re-heat heater, and an ambient air intake pile line 17 extends through the heat exchanger. In the case there is a sufficient temperature difference between ambient air and dry air of a low temperature which is discharged from the dehumidification rotor (adsorption zone) to the first vent air pipe line, said dry air is heated to a prescribed temperature by the heat exchanger. In the case that dry air does not reach the prescribed temperature by only heating by the heat exchanger, said dry air is further heated via the re-heat heater by a high-temperature coolant which flows in the bypass pipe line of the refrigeration cycle.SELECTED DRAWING: Figure 1 【課題】構造が簡単で、優れた省エネ効果を奏するドライルーム用除湿システムを提供する。【解決手段】除湿ロータ１（吸着ゾーン１ａ）の出力側の第１の通気管路３に上流側から順に熱交換器１２と再熱ヒータ１３が配置される。除湿ロータ（吸着ゾーン）の入力側の空気を冷却するための冷凍サイクル６の高圧側の冷媒管路にバイパス管路１４が設けられる。バイパス管路が再熱ヒータを通ってのび、外気取り入れ管路１７が熱交換器を通ってのびる。外気と除湿ロータ（吸着ゾーン）から第１の通気管路に排出された低温の乾き空気との間に十分な温度差がある場合は、熱交換器によって乾き空気が所定温度まで加熱される。熱交換器による加熱だけでは所定温度に達しない場合には、冷凍サイクルのバイパス管路を流れる高温冷媒により、再熱ヒータを介して乾き空気がさらに加熱される。【選択図】図１