公开(公告)号：US20200333054A1

公开(公告)日：2020-10-22

申请号：US16913448

申请日：2020-06-26

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yoshinari ASANO ,  Keiji AOTA ,  Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Yuzo KOMATSU ,  Shun OHKUBO ,  Tatsuya TAKAKUWA ,  Tetsushi TSUDA

IPC: F25B31/02 ,  C09K5/04

Abstract: High power of a compressor that compresses a mixed refrigerant containing at least 1,2-difluoroethylene is achieved. A compressor (100) employs an induction motor (70) as a motor that drives a compression unit (60) that compresses a mixed refrigerant containing at least 1,2-difluoroethylene, and thus, high power is enabled at comparatively low costs.

公开(公告)号：US20200333049A1

公开(公告)日：2020-10-22

申请号：US16955218

申请日：2018-12-13

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Eiji KUMAKURA ,  Takuro YAMADA ,  Atsushi YOSHIMI ,  Ikuhiro IWATA ,  Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU ,  Shun OHKUBO

IPC: F25B7/00 ,  C09K5/04 ,  F24F1/0063 ,  F24F1/0067 ,  F24F3/052 ,  F24F13/30 ,  F24H4/02 ,  F25B5/04 ,  F25B13/00 ,  F25B29/00 ,  F25B49/02

Abstract: A two-stage refrigeration apparatus (500) includes a first cycle (510) and a second cycle (520). The first cycle (510) includes a first compressor (511), a first condenser (512), a first expansion mechanism (513), and a first evaporator (514) that are arranged in such a manner as to be connected to the first cycle. A first refrigerant circulates through the first cycle. The second cycle (520) includes a second downstream-side condenser (523) and a second evaporator (527) that are arranged in such a manner as to be connected to the second cycle. A second refrigerant circulates through the second cycle. The first evaporator (514) and the second downstream-side condenser (523) constitute a cascade condenser (531). In the cascade condenser (531), heat is exchanged between the first refrigerant and the second refrigerant. At least one of the first refrigerant and the second refrigerant is a refrigerant mixture containing at least 1,2-difluoroethylene (HFO-1132(E)).

公开(公告)号：US20200326109A1

公开(公告)日：2020-10-15

申请号：US16913589

申请日：2020-06-26

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Eiji KUMAKURA ,  Takuro YAMADA ,  Atsushi YOSHIMI ,  Ikuhiro IWATA ,  Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU ,  Shun OHKUBO

IPC: F25B31/00 ,  F25B5/04 ,  F25B41/00

Abstract: A two-stage refrigeration apparatus (500) includes a first cycle (510) and a second cycle (520). The first cycle (510) includes a first compressor (511), a first condenser (512), a first expansion mechanism (513), and a first evaporator (514) that are arranged in such a manner as to be connected to the first cycle. A first refrigerant circulates through the first cycle. The second cycle (520) includes a second downstream-side condenser (523) and a second evaporator (527) that are arranged in such a manner as to be connected to the second cycle. A second refrigerant circulates through the second cycle. The first evaporator (514) and the second downstream-side condenser (523) constitute a cascade condenser (531). In the cascade condenser (531), heat is exchanged between the first refrigerant and the second refrigerant. At least one of the first refrigerant and the second refrigerant is a refrigerant mixture containing at least 1,2-difluoroethylene (FO-1132(E)).

公开(公告)号：US20200326103A1

公开(公告)日：2020-10-15

申请号：US16913556

申请日：2020-06-26

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Eiji KUMAKURA ,  Takuro YAMADA ,  Atsushi YOSHIMI ,  Ikuhiro IWATA ,  Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU ,  Shun OHKUBO

IPC: F25B9/00 ,  F25B13/00

Abstract: A refrigeration cycle is a refrigeration cycle using a mixed refrigerant which is a flammable refrigerant and which contains at least 1,2-difluoroethylene (HFO-1132(E)), and includes a compressor (1), a heat-source-side heat exchanger (3), an expansion mechanism (4), a use-side heat exchanger (2), and a decompression mechanism (7). The decompression mechanism (7) decompresses, between an inlet and an outlet of the heat-source-side heat exchanger (3), the mixed refrigerant flowing through the heat-source-side heat exchanger (3) that functions as an evaporator.

公开(公告)号：US20200325377A1

公开(公告)日：2020-10-15

申请号：US16913540

申请日：2020-06-26

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Eiji KUMAKURA ,  Takuro YAMADA ,  Atsushi YOSHIMI ,  Ikuhiro IWATA ,  Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU ,  Shun OHKUBO

IPC: C09K5/04 ,  F25B9/00

Abstract: A refrigeration cycle apparatus (10) includes a refrigerant circuit (11) including a compressor (12), a heat source-side heat exchanger (13), an expansion mechanism (14), and a usage-side heat exchanger (15). In the refrigerant circuit (11), a refrigerant containing at least 1,2-difluoroethylene (HFO-1132 (E)) is sealed. At least during a predetermined operation, in at least one of the heat source-side heat exchanger (13) and the usage-side heat exchanger (15), a flow of the refrigerant and a flow of a heating medium that exchanges heating with the refrigerant are counter flows.

公开(公告)号：US20160052841A1

公开(公告)日：2016-02-25

申请号：US14778631

申请日：2014-03-07

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Daisuke KARUBE ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU

IPC: C07C17/20

CPC classification number: C07C17/20 ,  C07C17/206 ,  C07C21/18

Abstract: The present invention provides a method for producing a fluorine-containing olefin, the method comprising reacting a chlorine-containing compound represented by a specific formula with anhydrous hydrogen fluoride in the presence of a chromium atom-containing fluorination catalyst, the reaction being carried out at a temperature within the range of 200 to 350° C. in the presence of 0.0001 to 0.03 mol of molecular chlorine per mol of the chlorine-containing compound. The present invention is capable of achieving the effect of suppressing catalyst deterioration, maintaining the starting material conversion and the target product selectivity within excellent ranges, and reducing adverse effects caused by the use of a large amount of non-condensable gas.

Abstract translation: 本发明提供一种含氟烯烃的制造方法，其特征在于，在含铬原子的氟化催化剂的存在下，使由特定式表示的含氯化合物与无水氟化氢反应，该反应在 在每摩尔含氯化合物存在0.0001至0.03摩尔分子氯的情况下，温度在200至350℃的范围内。 本发明能够实现抑制催化剂劣化，维持原料转化率和目标产物选择性在优异范围内的效果，并且减少由于使用大量不可冷凝气体引起的不利影响。