AIR CONDITIONING SYSTEM AND AIR CONDITIONING SYSTEM REPAIR METHOD

• Main Authors: KIKUCHI SAKAE, HIRAI HITOSHI, JIN KENICHIRO, MIYASHITA SHINICHI, YAMAMOTO JUNJI
• Format: Patent
• Language: English; Japanese
• Published: 24.09.2021
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

To provide a 2-tube air conditioning system that achieves a cooling/heating-free type system, and enables reduction of an installation space, construction cost and energy in comparison with conventional technology.SOLUTION: An air conditioning system includes an air conditioner for treating treated air containing outside air and return air. The air conditioning system includes: a cold/hot water coil for circulating cold/hot water between two cold/hot water tubes forming a forward path and a return path, and performing sensible heat treatment of the treated air; and a water source heat pump for performing at least latent heat treatment of the treated air. The water source heat pump has: a water heat source machine for circulating the cold/hot water between the cold/hot water tubes; and a direct expansion coil for circulating a coolant between the water heat source machine and itself, and performing heat exchange with the treated air and the coolant. In a casing of the air conditioner, the cold/hot water coil and the direct expansion coil are arranged from a flowing direction upstream side of the treated air in the order.SELECTED DRAWING: Figure 1 【課題】冷暖フリー式システムを実現し、従来技術と比較して設置スペース、施工コスト、及びエネルギーの削減が可能な２管式の空調システムを提供する。【解決手段】外気及び還気を含む処理空気を処理する空調機を備えた空調システムであって、往路及び還路を為す２本の冷温水管との間で冷温水を循環し、前記処理空気の顕熱処理を行う冷温水コイルと、少なくとも前記処理空気の潜熱処理を行う水熱源ヒートポンプと、を備え、前記水熱源ヒートポンプは、前記冷温水管との間で冷温水を循環する水熱源機と、前記水熱源機との間で冷媒を循環し、前記処理空気と前記冷媒との熱交換を行う直膨コイルと、を有し、前記空調機のケーシング内には、前記処理空気の通流方向上流側から順に、前記冷温水コイル及び前記直膨コイルが配置されること。【選択図】図１