HEAT MEDIUM CIRCULATION SYSTEM

• Main Authors: NAKATANI KAZUTO, MORIWAKI SHUNJI, YAMAOKA YOSHIKI, AOYAMA SHIGEO, YOSHIDA JUN
• Format: Patent
• Language: English; Japanese
• Published: 30.08.2022
• 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

To provide a heat medium circulation system which can inhibit accumulation of a refrigerant in a heat medium circuit to achieve a high level of safety even when the refrigerant leaks from the refrigerant circuit side in which the refrigerant circulates to the heat medium circuit side in which the heat medium circulates.SOLUTION: A heat medium circulation system 20 in the disclosure includes: a gas-liquid separation part 9 which is provided at the downstream side of a utilization side heat exchanger 3 and the upstream side of a utilization side terminal 10 in a heat medium circuit 50 and separates a refrigerant leaking to at least the heat medium circuit 50 from a heat medium; and a discharge device 8 which is connected to the gas-liquid separation part 9 and discharges at least the refrigerant separated in the gas-liquid separation part 9 to the outside. An inflow pipe 9b, through which at least the heat medium flows into the gas-liquid separation part 9, and an outflow pipe 9c, from which the heat medium flows out from the gas-liquid separation part 9, are connected to the gas-liquid separation part 9. A position where at least the heat medium flows into the gas-liquid separation part 9 is lower than a position where the heat medium flows out from the gas-liquid separation part 9.SELECTED DRAWING: Figure 1 【課題】本開示は、冷媒が循環する冷媒回路側から、熱媒体が循環する熱媒体回路側に、冷媒が漏洩した場合でも、熱媒体回路内での冷媒の滞留を抑制でき、安全性に優れた熱媒体循環システムを提供する。【解決手段】本開示における熱媒体循環システム２０は、利用側熱交換器３の下流側で利用側端末１０の上流側の熱媒体回路５０に設けられ、少なくとも熱媒体回路５０内に漏洩した冷媒を、熱媒体から分離させる気液分離部９と、気液分離部９に接続され、気液分離部９において分離された少なくとも冷媒を外方に放出させる放出装置８と、を備え、気液分離部９には、少なくとも熱媒体が気液分離部９内に流入する流入管９ｂと、熱媒体が気液分離部９内から流出する流出管９ｃと、が接続されており、少なくとも熱媒体が気液分離部９内に流入する位置は、熱媒体が気液分離部９内から流出する位置よりも低い。【選択図】図１