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公开(公告)号：EP4443075A1
公开(公告)日：2024-10-09
申请号：EP22898212.0
申请日：2022-09-20
发明人： MORIWAKI, Shunji , YAMAOKA, Yuki , IMAGAWA, Tsuneko , AOYAMA, Shigeo , MACHIDA, Kazuhiko , NAKATANI, Kazuhito , YOSHIDA, Jun , BANDO, Yasuaki
IPC分类号： F25B1/00 , F24H15/375 , F25B49/02
CPC分类号： F25B49/02 , F25B1/00 , F24H15/375
摘要： A heat medium circulation system 100 comprises a refrigerant circuit 110 in which a compressor 111, a use-side heat exchanger 112, an expansion device 113, and a heat source-side heat exchanger 114 are annularly connected, a heat medium circuit 120 for circulating a heat medium cooled or heated by the use-side heat exchanger 112 using refrigerant discharged from the compressor 111, and a control device 130. The heat medium circuit 120 includes a circulation device for circulating the heat medium, a heating device 127 for electrically heating the heat medium, and a deaerating device 128 for discharging gas from inside the heat medium circuit 120 to outside the heat medium circuit 120.The circulation device is placed upstream of the use-side heat exchanger 112, the heating device 127 is placed downstream of the use-side heat exchanger 112 and on a side higher than the use-side heat exchanger 112, and the deaerating device 128 is placed downstream of the heating device 127 and on a side higher than the heating device 127, thereby providing a heat medium circulation system 100 that safely diffuses leaked refrigerant into the outdoor atmosphere and enhances safety.
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公开(公告)号：EP4435349A1
公开(公告)日：2024-09-25
申请号：EP22915576.7
申请日：2022-11-18
摘要： The present invention provides a shut-off unit that, with simple control and a simple configuration, reduces pressure loss of a coolant caused by a shut-off valve, makes it possible to draw a vacuum in an indoor unit even in a state where there is no power supply yet at the installment site and the shut-off valve cannot be opened, and is capable of releasing the coolant to the outdoor unit. The present invention comprises: shut-off liquid coolant piping (Ps1) through which a liquid coolant flows; shut-off gas coolant piping (Ps2) through which a gas coolant flows; a liquid shut-off valve (131) which is provided to the shut-off liquid coolant piping (Ps1); a gas shut-off valve (132) which is provided to the shut-off gas coolant piping (Ps2); gas bypass piping (Ps4); and a gas check valve (134) which is provided to the gas bypass piping (Ps4), wherein the gas check valve (134) prevents the flow of coolant from an outdoor unit (110) to an indoor unit (120) and allows the flow of coolant from the indoor unit (120) to the outdoor unit (110).
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公开(公告)号：EP4417898A1
公开(公告)日：2024-08-21
申请号：EP22880685.7
申请日：2022-09-09
发明人： MORIWAKI, Shunji , YAMAOKA, Yuki , IMAGAWA, Tsuneko , AOYAMA, Shigeo , MACHIDA, Kazuhiko , YOSHIDA, Jun , BANDO, Yasuaki , NAKATANI, Kazuhito
摘要： A heat medium circulation system 100 comprises: a refrigerant circuit 110 in which a compressor 111, a use-side heat exchanger 112, an expander 113, and a heat source-side heat exchanger 114 are connected annularly and a flammable refrigerant is used; an air blower 117 for flowing air to the heat source-side heat exchanger 114; a casing 140 accommodating at least the refrigerant circuit 110 and the air blower 117; an electric heating device 143 provided on the bottom plate 141 of the casing 140; and a control device 130. The control device 130 simultaneously starts operation of the air blower 117 and energization of the electric heating device 143, and controls power consumption of the electric heating device 143 to be lower than power consumption in a stable state for a predetermined time from the start of energization of the electric heating device 143, thereby safely operating the electric heating device 143 which suppresses freezing of drain water and providing the heat medium circulation system 100 with further improved safety.
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公开(公告)号：EP3657090B1
公开(公告)日：2024-08-21
申请号：EP18835621.6
申请日：2018-07-13
CPC分类号： F24F11/54 , F24F11/86 , F25B1/00 , F25B13/00 , F25B49/02 , F25B2313/023320130101 , F25B2600/251320130101 , F25B2500/1220130101 , F25B2313/029120130101 , F25B41/39
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公开(公告)号：EP4414630A1
公开(公告)日：2024-08-14
申请号：EP22878244.7
申请日：2022-09-02
发明人： YAMADA, Yuya , KINJO, Kenji
摘要： A freezing apparatus according to the present disclosure cools a refrigerant by heat exchange between the refrigerant and water. In this freezing apparatus, a low-stage compression mechanism, an intercooler that cools the refrigerant discharged from the low-stage compression mechanism, a high-stage compression mechanism that sucks the refrigerant that has passed through the intercooler, and a gas cooler that cools the refrigerant discharged from the high-stage compression mechanism are connected by refrigerant piping, and a water supply means, the intercooler, the gas cooler, an external radiator, a hot-water supply means, and a water delivery mechanism are connected by water piping. This freezing apparatus is provided with a first flow adjustment mechanism that adjusts the flow rate of water flowing into the hot-water supply means and the external radiator after passing through the gas cooler.
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公开(公告)号：EP4411280A1
公开(公告)日：2024-08-07
申请号：EP22876055.9
申请日：2022-09-22
发明人： SAEKI, Kumiko , IYOSHI, Yuta , YAMANOI, Yoshiki
摘要： Provided are a cascade unit and a refrigeration cycle apparatus capable of cooling an electric component. The present disclosure is a cascade unit (2) of a refrigeration cycle apparatus (1) including a primary-side refrigerant circuit (5a) that includes a primary-side heat exchanger (74) and in which a primary-side refrigerant flows, a secondary-side refrigerant circuit (10) that includes a secondary-side compressor (21) and a utilization-side heat exchanger (52a, 52b, 52c) and in which a secondary-side refrigerant flows, and a cascade heat exchanger (35) that causes the primary-side refrigerant and the secondary-side refrigerant to exchange heat with each other, the cascade unit including the secondary-side compressor (21), the cascade heat exchanger (35), a first electric component (91), a second electric component (92), a third electric component (93), and an electric component fan (97), and a cascade casing (2x) that accommodates the secondary-side compressor (21), the first electric component (91), and the electric component fan (97).
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公开(公告)号：EP4411278A1
公开(公告)日：2024-08-07
申请号：EP22883501.3
申请日：2022-10-14
发明人： ARIMOTO, Ryohei , SASAYA, Yugo
摘要： A refrigerating apparatus comprising: a main circuit through which a refrigerant flows; a plurality of compressors; a non-return valve; a condenser; a receiver; a first expansion valve; an evaporator; an injection flowpath; an solenoid valve disposed upon the injection flowpath; a fluid level detection unit that detects the amount of refrigerant stored inside the receiver; and a control unit. The control unit closes the first expansion valve prior to stopping the compressors and closes the solenoid valve at the point that the fluid level detection unit has detected that the amount of fluid component inside the receiver has reached a predetermined upper value.
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公开(公告)号：EP4170265B1
公开(公告)日：2024-08-07
申请号：EP20940660.2
申请日：2020-06-19
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公开(公告)号：EP3102891B1
公开(公告)日：2024-08-07
申请号：EP15703720.1
申请日：2015-02-03
CPC分类号： F25B1/00 , F25B1/10 , F25B9/008 , F25B40/00 , F25B41/00 , F25B2309/0620130101 , F25B2341/001220130101 , F25B2400/2320130101 , F25B41/385 , F25B41/39
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公开(公告)号：EP4400779A1
公开(公告)日：2024-07-17
申请号：EP21956732.8
申请日：2021-09-08
IPC分类号： F25B1/00
CPC分类号： F25B1/00
摘要： An air conditioner (100) includes a compressor (1), a first heat exchanger (2), a second heat exchanger (4), a decompression device (3), a circulation path (5), a temperature sensor (50), a concentration sensor (51), a heater (60), and a control device (70). In a case where a concentration of refrigeration oil detected by the concentration sensor (51) is less than a first threshold value, the control device (70) operates the heater (60) such that a part of a refrigerant in a liquid state in the compressor (1) is vaporized, and in a case where the concentration of the refrigeration oil detected by the concentration sensor (51) exceeds a second threshold value greater than the first threshold value and a temperature of the refrigeration oil detected by the temperature sensor (50) is less than a specified temperature, the control device (70) operates the heater (60) such that the refrigerant in the liquid state in the compressor (1) is vaporized and the temperature of the refrigeration oil in the compressor (1) is increased.
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