HEAT SOURCE UNIT FOR REFRIGERATION DEVICE

• Main Authors: OKUBO EISAKU, UEDA HIROKI
• Format: Patent
• Language: English; Japanese
• Published: 15.02.2018
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; RANGES; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To expand an operable temperature range of heat source water in a heat source unit for a refrigeration device having a heat source side heat exchanger for exchanging heat between a refrigerant and the heat source water.SOLUTION: A heat source side heat exchanger (40) for exchanging heat between a refrigerant and heat source water is provided in a heat source unit (11) for an air conditioner (10) which serves as a refrigeration device. The heat source side heat exchanger (40) includes a plurality of heat exchange sections (41a, 41b) and can control the size of a heat exchange region by changing the number of the heat exchange sections (41a, 41b) to which the refrigerant is caused to flow in. A controller (70) of the heat source unit (11) adjusts the size of the heat exchange region of the heat source side heat exchanger (40) on the basis of a differential pressure index value.SELECTED DRAWING: Figure 1 【課題】冷媒を熱源水と熱交換させる熱源側熱交換器を備えた冷凍装置の熱源ユニットにおいて、運転可能な熱源水の温度範囲を拡大する。【解決手段】冷凍装置である空気調和装置（10）の熱源ユニット（11）には、冷媒を熱源水と熱交換させる熱源側熱交換器（40）が設けられる。熱源側熱交換器（40）は、複数の熱交換部（41a,41b）を備え、冷媒が流入する熱交換部（41a,41b）の数を変更することによって熱交換領域の大きさを調節可能である。熱源ユニット（11）のコントローラ（70）は、圧力差指標値に基づいて、熱源側熱交換器（40）の熱交換領域の大きさを調節する。【選択図】図１