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发明公开
CN110730893A 冷冻装置 有权

冷冻装置
摘要：
使冷冻装置的安全性提高。空调系统(100)空调系统(100)具备：包括使用侧回路(RC2)、热源侧回路(RC1)及制冷剂排出回路(RC3)的制冷剂回路(RC)；检测使用侧回路(RC2)的制冷剂泄漏的制冷剂泄漏检测部(制冷剂泄漏传感器(50)及制冷剂泄漏判定部(74))；通过处于打开状态使热源侧回路(RC1)和制冷剂排出回路(RC3)连通的热源侧第四控制阀(22)；配置于制冷剂排出回路(RC3)中，通过处于第一状态(开放状态)使制冷剂排出回路(RC3)与外部空间连通，将制冷剂排出的制冷剂排出机构(21)；以及控制器(70)。控制器(70)在未检测到使用侧回路(RC2)的制冷剂泄漏的情况下将热源侧第四控制阀(22)控制为关闭状态，在由制冷剂泄漏检测部检测到使用侧回路(RC2)的制冷剂泄漏的情况下将热源侧第四控制阀(22)切换为打开状态，使制冷剂排出机构(21)转换到第一状态。制冷剂排出机构(21)是破裂板，当制冷剂排出回路(RC3)中的压力达到第一阈值(ΔTh1)以上时，破裂板处于第一状态。
摘要（英）：

The invention aims to improve the safety of a refrigeration device. An air conditioning system (100) comprises: a refrigerant circuit (RC) including a use-side circuit (RC2), a heat-source-side circuit (RC1), and a refrigerant release circuit (RC3); a refrigerant-leak-sensing unit (refrigerant leak sensor (50) and refrigerant leak determination unit (74)) for sensing a refrigerant leak in the use-side circuit (RC2); a heat-source-side fourth control valve (22) that allows the heat-source-side circuit (RC1) and the refrigerant release circuit (RC3) to communicate due to being in an open state;a refrigerant release mechanism (21) that is disposed in the refrigerant release circuit (RC3), and that allows the refrigerant release circuit (RC3) and an exterior space to communicate and releasesrefrigerant due to being in a first state (opened state); and a controller (70). The controller (70) controls the heat-source-side fourth control valve (22) to a closed state when no refrigerant leakis detected in the use-side circuit (RC2), switches the heat-source-side fourth control valve (22) to the open state when a refrigerant leak is detected in the use-side circuit (RC2) by the refrigerant-leak-sensing unit, and causes the refrigerant release mechanism (21) to transition to the first state. The refrigerant release mechanism (21) is a rupture disk that enters the first state when the pressure within the refrigerant release circuit (RC3) reaches or exceeds a first threshold value (delta(Th1)).

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