DEHUMIDIFICATION APPARATUS

• Main Authors: FUJII YASUKI, GENSUI KAZUO
• Format: Patent
• Language: English; Japanese
• Published: 06.04.2017
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; RANGES; SEPARATION; TRANSPORTING; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To make it possible to melt ice (frost) adhering to a heat exchanger even when the ice (frost) adheres to the heat exchanger, improve a defrosting capability, and eventually improve a dehumidification effect.SOLUTION: A dehumidification apparatus comprises, within a main body case 1 having an air inlet 2 and an air outlet 4, dehumidification means 5 dehumidifying air within the main body case 1 by a refrigeration cycle in which a compressor 7, a radiator 8, an expander 9, and a heat sink 10 are connected in sequence; and an air blower 6 blowing the air outside of the main body case 1 from the air outlet 4 to outside of the main body case 1 after the air is drawn in from the air inlet 2 and passed through the dehumidification means 5. The refrigeration cycle is provided with a bypass tube 70 communicating an outlet of the compressor 7 with an inlet of the heat sink 10 and having a two-way valve 71, and control means 21 controlling the compressor 7, the two-way valve 71, and the air blower 6. In a defrosting operation, the control means 21 actuates the compressor 7, opens the two-way valve 71, introduces refrigerant at the outlet of the compressor 7 directly into the heat sink 10 via the bypass tube 70, and actuates the air blower 6.SELECTED DRAWING: Figure 2 【課題】熱交換器に氷（霜）が付着した場合にも、熱交換器に付着した氷（霜）を融かすことができ、霜取り能力を高め、結果として除湿効果を高めることができる。【解決手段】空気吸込口２と空気吹出口４を有する本体ケース１内には、圧縮機７と放熱器８と膨張器９と吸熱器１０とを順に連結した冷凍サイクルにより本体ケース１内の空気を除湿する除湿手段５と、空気吸込口２から吸い込んだ本体ケース１外の空気を除湿手段５を通過させた後に空気吹出口４から本体ケース１外に吹き出す送風機６とを備えている。冷凍サイクルには、圧縮機７出口と吸熱器１０入口とを連通し、二方弁７１を有するバイパス配管７０を設け、圧縮機７と二方弁７１と送風機６とを制御する制御手段２１を備えている。制御手段２１は、霜取り運転時には、圧縮機７を運転し、二方弁７１を開口しバイパス配管７０を介して圧縮機７出口の冷媒を直接吸熱器１０に導入し、送風機６を運転する。【選択図】図２