JP2019138625A - Refrigeration cycle device - Google Patents
Refrigeration cycle device Download PDFInfo
- Publication number
- JP2019138625A JP2019138625A JP2019101426A JP2019101426A JP2019138625A JP 2019138625 A JP2019138625 A JP 2019138625A JP 2019101426 A JP2019101426 A JP 2019101426A JP 2019101426 A JP2019101426 A JP 2019101426A JP 2019138625 A JP2019138625 A JP 2019138625A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- hfo1123
- refrigeration cycle
- mass
- cycle apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 63
- 239000003507 refrigerant Substances 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000010792 warming Methods 0.000 abstract description 10
- 239000003921 oil Substances 0.000 description 21
- 230000004048 modification Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 9
- 239000010687 lubricating oil Substances 0.000 description 6
- 239000010721 machine oil Substances 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 description 3
- FXRLMCRCYDHQFW-UHFFFAOYSA-N 2,3,3,3-tetrafluoropropene Chemical compound FC(=C)C(F)(F)F FXRLMCRCYDHQFW-UHFFFAOYSA-N 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 2
- 238000007323 disproportionation reaction Methods 0.000 description 2
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical compound FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229960003505 mequinol Drugs 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000005437 stratosphere Substances 0.000 description 1
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
- Lubricants (AREA)
Abstract
Description
本発明は、冷凍サイクル装置に関する。 The present invention relates to a refrigeration cycle apparatus.
従来、冷凍サイクル装置に用いられる冷媒（作動媒体）としては、クロロフルオロカーボン（ＣＦＣ）、ハイドロクロロフルオロカーボン（ＨＣＦＣ）などが用いられていた。しかし、ＣＦＣ、ＨＣＦＣなどの塩素を含む冷媒は、成層圏のオゾン層への影響（地球温暖化への影響）が大きいため、現在、使用が規制されている。 Conventionally, chlorofluorocarbon (CFC), hydrochlorofluorocarbon (HCFC), and the like have been used as the refrigerant (working medium) used in the refrigeration cycle apparatus. However, refrigerants containing chlorine such as CFC and HCFC are currently restricted in use because they have a great influence on the ozone layer in the stratosphere (influence on global warming).
このため、近年は、冷媒として、塩素を含まずオゾン層への影響が少ないハイドロフルオロカーボン（ＨＦＣ）を用いるようになっている。ＨＦＣとしては、例えば、Ｒ３２（ジフルオロメタン）、Ｒ１２５（１，１，１，２，２−ペンタフルオロエタン）、Ｒ１３４ａ（１，１，１，２−テトラフルオロエタン）が知られている。 For this reason, in recent years, hydrofluorocarbon (HFC) which does not contain chlorine and has little influence on the ozone layer has been used as a refrigerant. As HFCs, for example, R32 (difluoromethane), R125 (1,1,1,2,2-pentafluoroethane), and R134a (1,1,1,2-tetrafluoroethane) are known.
例えば、ヒートポンプ式給湯機などの冷凍サイクル装置（特に高温水を供給するもの）については、圧縮機の吐出ガス温度が高温となり、冷凍サイクルにおける作動圧力の高圧側が増大する（凝縮温度が６５℃より大きくなる）。これを抑制するために、冷媒（作動媒体）として、Ｒ１３４ａ、Ｒ４０７Ｃ（Ｒ３２、Ｒ１２５およびＲ１３４ａからなる３種混合冷媒）などが使用されており、近年は、主にＲ４０７Ｃが使用されている。 For example, for refrigeration cycle devices (particularly those that supply high-temperature water) such as heat pump water heaters, the discharge gas temperature of the compressor becomes high, and the high-pressure side of the operating pressure in the refrigeration cycle increases (condensation temperature from 65 ° C. growing). In order to suppress this, R134a, R407C (three-type mixed refrigerant composed of R32, R125, and R134a) and the like are used as the refrigerant (working medium), and in recent years, R407C is mainly used.
しかし、地球温暖化係数（ＧＷＰ）は、Ｒ４０７Ｃが１７７４、Ｒ１３４ａが１４３０である（ＧＷＰ値は、ＩＰＣＣ４次報告に基づく値）。地球温暖化の抑制のためには、さらにＧＷＰの小さい冷媒を使用することが望ましい。 However, the global warming potential (GWP) is 1774 for R407C and 1430 for R134a (the GWP value is based on the IPCC fourth report). In order to suppress global warming, it is desirable to use a refrigerant having a smaller GWP.
ＧＷＰが１０未満である冷媒としては、トリフルオロエチレン（１，１，２−トリフルオロエテン、ＨＦＯ−１１２３、Ｒ１１２３などとも呼ばれる。以下、「ＨＦＯ１１２３」と呼ぶ。）、２，３，３，３−テトラフルオロプロペン（２，３，３，３−テトラフルオロ−１−プロペン、ＨＦＯ−１２３４ｙｆ、Ｒ１２３４ｙｆなどとも呼ばれる。以下、「Ｒ１２３４ｙｆ」と呼ぶ。）、ヘキサフルオロプロペン（１，１，２，３，３，３−ヘキサフルオロ−１−プロペン、ＨＦＯ１２１６、Ｒ１２１６とも呼ばれる。以下、「ＨＦＯ１２１６」と呼ぶ。）などが知られている。なお、これらの冷媒は、大気中のＯＨラジカルによって分解されやすい炭素−炭素二重結合を有しているため、オゾン層への影響が少ないと考えられている。 As a refrigerant having a GWP of less than 10, trifluoroethylene (also referred to as 1,1,2-trifluoroethene, HFO-1123, R1123, etc., hereinafter referred to as “HFO1123”), 2, 3, 3, 3 -Tetrafluoropropene (also referred to as 2,3,3,3-tetrafluoro-1-propene, HFO-1234yf, R1234yf, etc., hereinafter referred to as "R1234yf"), hexafluoropropene (1,1,2,3) , 3,3-hexafluoro-1-propene, HFO1216, and R1216, hereinafter referred to as “HFO1216”). In addition, since these refrigerant | coolants have the carbon-carbon double bond which is easy to be decomposed | disassembled by OH radical in air | atmosphere, it is thought that there is little influence on an ozone layer.
なお、ＨＦＯ１１２３は、例えば、特許文献１（国際公開第２０１２／１５７７６４号）に開示されている。また、例えば、特許文献２（国際公開第２０１５／００５２９０号）、および、特許文献３（国際公開第２０１５／１４１６７６号）には、ＨＦＯ１１２３およびＲ１２３４ｙｆを含む混合冷媒が開示されている。 HFO1123 is disclosed in, for example, Patent Document 1 (International Publication No. 2012/157774). Further, for example, Patent Document 2 (International Publication No. 2015/005290) and Patent Document 3 (International Publication No. 2015/141676) disclose a mixed refrigerant containing HFO1123 and R1234yf.
ＨＦＯ１１２３は、地球温暖化への影響が少なく（ＧＷＰが約０．３）、かつ充分な性能を得ることのできる冷媒である。しかし、ＨＦＯ１１２３の含有量が多い冷媒は、不均化反応（自己分解反応）が発生しやすいという問題がある。このため、ＨＦＯ１１２３の使用量を多くすることは好ましくない。 HFO1123 is a refrigerant that has little influence on global warming (GWP is about 0.3) and can obtain sufficient performance. However, a refrigerant with a high content of HFO 1123 has a problem that a disproportionation reaction (self-decomposition reaction) easily occurs. For this reason, it is not preferable to increase the amount of HFO 1123 used.
一方、Ｒ１２３４ｙｆおよびＨＦＯ１２１６は、例えば、ヒートポンプ式給湯機に用いることで、ＧＷＰを大幅に低減できると共に、吐出ガス温度が従来より低くなり、その分高温まで水を加熱可能となるといったメリットを有している。 On the other hand, R1234yf and HFO1216 have the merit that, for example, GWP can be significantly reduced by using it in a heat pump type hot water heater, and the discharge gas temperature becomes lower than that of the conventional one, so that water can be heated to a higher temperature. ing.
しかし、Ｒ１２３４ｙｆおよびＨＦＯ１２１６は、冷媒の密度や潜熱が小さいため、冷凍サイクル装置の能力が大幅に低下するというデメリットがある。なお、このような冷媒を用いる場合でも、圧縮機の行程容積、周波数、配管径等を大幅に増加すれば（押しのけ量を増加させれば）、装置としては同等の能力を発揮することも可能であるが、給湯機の大型化、コスト増加などの実用上の課題がある。 However, R1234yf and HFO1216 have a demerit that the capacity of the refrigeration cycle apparatus is greatly reduced because the density and latent heat of the refrigerant are small. Even when such a refrigerant is used, if the stroke volume, frequency, pipe diameter, etc. of the compressor are significantly increased (if the displacement is increased), it is possible to exert the same capability as the device. However, there are practical problems such as an increase in the size of the water heater and an increase in cost.
また、Ｒ１２３４ｙｆおよびＨＦＯ１２１６は、従来の冷媒と比べて、冷凍サイクルにおける作動圧力の低圧側がさらに低下するため、冷凍サイクル装置の冷凍回路内に負圧（大気圧以下）の部分が発生し、冷凍回路の密封性が低下したような場合に回路内に空気を吸い込んでしまう可能性がある。内部に吸い込まれた空気は、冷媒、油等と反応することで、冷凍回路を劣化させるため、冷凍サイクル装置の信頼性が損われる可能性がある。なお、特に、ヒートポンプ式の給湯装置などの作動圧力が比較的低い冷凍サイクル装置においては、元々の回路内の圧力が低いため、負圧が発生しやすい。 In addition, R1234yf and HFO1216 are further reduced on the low pressure side of the operating pressure in the refrigeration cycle as compared with the conventional refrigerant, and therefore a negative pressure (below atmospheric pressure) portion is generated in the refrigeration circuit of the refrigeration cycle apparatus. There is a possibility that air will be sucked into the circuit when the sealing performance of the circuit is lowered. The air sucked into the interior reacts with the refrigerant, oil, and the like, thereby degrading the refrigeration circuit, and thus the reliability of the refrigeration cycle apparatus may be impaired. In particular, in a refrigeration cycle apparatus having a relatively low operating pressure, such as a heat pump type hot water supply apparatus, a negative pressure is likely to be generated because the pressure in the original circuit is low.
本発明は、上記課題に鑑みてなされたものであり、地球温暖化の影響が少なく、十分な性能を有し、かつ、冷凍回路内に負圧が発生せず、信頼性の高い冷凍サイクル装置を提供することを目的とする。 The present invention has been made in view of the above-mentioned problems, has a sufficient performance, has a sufficient performance, does not generate a negative pressure in the refrigeration circuit, and has a high reliability. The purpose is to provide.
本発明に係るヒートポンプ式給湯機用の冷凍サイクル装置は、圧縮機、室外熱交換器、室内熱交換器および膨張弁を含む冷凍回路を備える。冷凍回路内に冷媒が封入されており、冷媒は、ＨＦＯ１１２３およびＲ１２３４ｙｆを含有し、ＨＦＯ１１２３およびＲ１２３４ｙｆの合計量に対するＨＦＯ１１２３の比率が１５質量％以上５０質量％以下である。 A refrigeration cycle apparatus for a heat pump hot water supply apparatus according to the present invention includes a refrigeration circuit including a compressor, an outdoor heat exchanger, an indoor heat exchanger, and an expansion valve. A refrigerant is sealed in the refrigeration circuit, and the refrigerant contains HFO1123 and R1234yf, and the ratio of HFO1123 to the total amount of HFO1123 and R1234yf is 15% by mass or more and 50% by mass or less.
また、本発明に係るヒートポンプ式給湯機用の冷凍サイクル装置は、圧縮機、室外熱交換器、室内熱交換器および膨張弁を含む冷凍回路を備える。冷凍回路内に冷媒が封入されており、冷媒は、ＨＦＯ１１２３およびＨＦＯ１２１６を含有し、ＨＦＯ１１２３およびＨＦＯ１２１６の合計量に対するＨＦＯ１１２３の比率が１０質量％以上５０質量％以下である。 The refrigeration cycle apparatus for a heat pump type hot water heater according to the present invention includes a refrigeration circuit including a compressor, an outdoor heat exchanger, an indoor heat exchanger, and an expansion valve. A refrigerant is sealed in the refrigeration circuit, and the refrigerant contains HFO1123 and HFO1216, and the ratio of HFO1123 to the total amount of HFO1123 and HFO1216 is 10% by mass or more and 50% by mass or less.
本発明によれば、地球温暖化の影響が少なく、十分な性能を有し、かつ、冷凍回路内に負圧が発生せず、信頼性の高い冷凍サイクル装置を提供することができる。 According to the present invention, it is possible to provide a highly reliable refrigeration cycle apparatus that is less affected by global warming, has sufficient performance, and does not generate negative pressure in the refrigeration circuit.
以下、本発明の実施形態を図面に基づいて説明する。
［実施形態１］
まず、本実施形態の冷凍サイクル装置の概要について簡単に説明する。図５は、実施形態１に係る冷凍サイクル装置を示す概略構成図である。冷凍サイクル装置は、圧縮機１と、室外熱交換器３と、膨張弁４と、室内熱交換器５とを含む冷凍回路を備える。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Embodiment 1]
First, the outline | summary of the refrigerating-cycle apparatus of this embodiment is demonstrated easily. FIG. 5 is a schematic configuration diagram illustrating the refrigeration cycle apparatus according to the first embodiment. The refrigeration cycle apparatus includes a refrigeration circuit including a compressor 1, an outdoor heat exchanger 3, an expansion valve 4, and an indoor heat exchanger 5.
給湯時においては、圧縮機１で圧縮された高温高圧のガス状冷媒は、室内熱交換器５へと流入し、そこで凝縮する。室内熱交換器５で凝縮した液状冷媒は、膨張弁４を経由して室外熱交換器３へと流入し、そこで蒸発（気化）する。室外熱交換器３で蒸発した冷媒は、圧縮機１へ戻る。このように、暖房時において、冷媒は、冷凍サイクル装置の冷凍回路内を図５に示す矢印の方向に循環する。 At the time of hot water supply, the high-temperature and high-pressure gaseous refrigerant compressed by the compressor 1 flows into the indoor heat exchanger 5 and condenses there. The liquid refrigerant condensed in the indoor heat exchanger 5 flows into the outdoor heat exchanger 3 via the expansion valve 4 and evaporates (vaporizes) there. The refrigerant evaporated in the outdoor heat exchanger 3 returns to the compressor 1. Thus, during heating, the refrigerant circulates in the direction of the arrow shown in FIG. 5 in the refrigeration circuit of the refrigeration cycle apparatus.
本実施形態の冷凍サイクル装置は、さらに、気液分岐器、レシーバー、アキュームレータ、高低圧熱交換器等の他の機器を備えていてもよい。 The refrigeration cycle apparatus of the present embodiment may further include other devices such as a gas-liquid branching device, a receiver, an accumulator, and a high / low pressure heat exchanger.
次に、本実施形態において、冷凍回路内に封入される冷媒について説明する。該冷媒は、ＨＦＯ１１２３およびＲ１２３４ｙｆを含んでいる。 Next, the refrigerant sealed in the refrigeration circuit in the present embodiment will be described. The refrigerant includes HFO1123 and R1234yf.
ＨＦＯ１１２３およびＲ１２３４ｙｆの合計量に対するＨＦＯ１１２３の比率は、１５質量％以上５０質量％以下である。該比率の下限は、好ましくは３３質量％以上である。該比率の上限は、好ましくは４０質量％未満であり、より好ましくは２９質量％未満であり、さらに好ましくは２１質量％未満である。 The ratio of HFO1123 to the total amount of HFO1123 and R1234yf is 15% by mass or more and 50% by mass or less. The lower limit of the ratio is preferably 33% by mass or more. The upper limit of the ratio is preferably less than 40% by mass, more preferably less than 29% by mass, and even more preferably less than 21% by mass.
図１は、実施形態１に係る冷媒の飽和温度を示すグラフ（ＨＦＯ１１２３／Ｒ１２３４ｙｆと記載した実線で示すグラフ）である。このグラフは、ＨＦＯ１１２３およびＲ１２３４ｙｆからなる混合冷媒についての飽和温度を示しており、横軸の「ＨＦＯ１１２３比率」は、ＨＦＯ１１２３およびＲ１２３４ｙｆの合計量に対するＨＦＯ１１２３の質量比率である。なお、図１では、Ｒ４０７Ｃの飽和温度を示す線（一点鎖線）を併せて示している。 FIG. 1 is a graph showing the saturation temperature of the refrigerant according to the first embodiment (a graph indicated by a solid line described as HFO1123 / R1234yf). This graph shows the saturation temperature for the mixed refrigerant composed of HFO1123 and R1234yf, and the “HFO1123 ratio” on the horizontal axis is the mass ratio of HFO1123 with respect to the total amount of HFO1123 and R1234yf. In addition, in FIG. 1, the line (dashed line) which shows the saturation temperature of R407C is shown collectively.
図１から、ＨＦＯ１１２３比率が１５質量％以上である場合、飽和温度が−３３℃以下となることが分かる。冷凍サイクル装置（ヒートポンプ式給湯機）が使用可能な外気温度の下限は−２０℃程度である。このため、冷媒の飽和温度が−３３℃程度以下であれば、冷凍回路内での負圧の発生が抑制される。したがって、本実施形態の冷凍サイクル装置に用いる冷媒において、ＨＦＯ１１２３比率を１５質量％以上とすることで、冷凍回路内での負圧の発生を抑制することができる。 1 that the saturation temperature is −33 ° C. or lower when the HFO1123 ratio is 15 mass% or higher. The lower limit of the outside air temperature at which the refrigeration cycle apparatus (heat pump type hot water heater) can be used is about −20 ° C. For this reason, if the saturation temperature of the refrigerant is about −33 ° C. or lower, the generation of negative pressure in the refrigeration circuit is suppressed. Therefore, in the refrigerant used in the refrigeration cycle apparatus of the present embodiment, the generation of negative pressure in the refrigeration circuit can be suppressed by setting the HFO 1123 ratio to 15% by mass or more.
なお、ヒートポンプ式の給湯装置などの作動圧力が比較的低い冷凍サイクル装置においては、元々の回路内の圧力が低いため、負圧が発生しやすい。このため、本実施形態によれば、ヒートポンプ式給湯機用の冷凍サイクル装置において、特に有効に負圧の発生を抑制することができる。 In a refrigeration cycle apparatus having a relatively low operating pressure, such as a heat pump type hot water supply apparatus, a negative pressure is likely to be generated because the pressure in the original circuit is low. For this reason, according to this embodiment, generation | occurrence | production of a negative pressure can be suppressed especially effectively in the refrigerating cycle apparatus for heat pump type hot water heaters.
一方で、本実施形態に用いる冷媒は、ＨＦＯ１１２３比率が５０質量％以下に設定されている。これは、ＨＦＯ１１２３比率が５０質量％を超えると、不均化反応（自己分解反応）が発生する可能性が高まるためである。 On the other hand, the refrigerant used in the present embodiment has an HFO 1123 ratio set to 50% by mass or less. This is because when the HFO1123 ratio exceeds 50 mass%, the possibility of a disproportionation reaction (self-decomposition reaction) increases.
図３は、実施形態１に係る冷媒の吐出温度を示すグラフである。図３に示されるように、冷凍サイクル装置がヒートポンプ式の給湯機であり、ＨＦＯ１１２３比率が５０質量％以下である場合、吐出ガス温度が従来（冷媒としてＲ４０７Ｃを用いた場合）より１０℃以上低下する（図３参照）。このため、その分、作動圧力の高圧側を増加させることができ、給湯温度を上昇させることが出来る。 FIG. 3 is a graph showing the discharge temperature of the refrigerant according to the first embodiment. As shown in FIG. 3, when the refrigeration cycle apparatus is a heat pump type hot water heater and the HFO1123 ratio is 50% by mass or less, the discharge gas temperature is lower by 10 ° C. or more than the conventional case (when R407C is used as the refrigerant). (See FIG. 3). For this reason, the high pressure side of the operating pressure can be increased correspondingly, and the hot water supply temperature can be increased.
また、本実施形態の冷媒のＧＷＰは、Ｒ４０７ＡのＧＷＰ（１７７４）、および、Ｒ１３４ａのＧＷＰ（１４３０）に対して大幅に低減されたものとなる。したがって、本実施形態の冷凍サイクル装置は、地球温暖化への影響が少ない。 Further, the GWP of the refrigerant of the present embodiment is greatly reduced compared to the GWP (1774) of R407A and the GWP (1430) of R134a. Therefore, the refrigeration cycle apparatus of this embodiment has little influence on global warming.
以上のことから、本実施形態の冷凍サイクル装置は、地球温暖化の影響が少なく、十分な性能を有し、かつ、冷凍回路内に負圧が発生せず、信頼性の高いものであることが分かる。 From the above, the refrigeration cycle apparatus of the present embodiment is highly reliable with little influence of global warming, sufficient performance, and no negative pressure generated in the refrigeration circuit. I understand.
なお、本実施形態において用いられる冷媒は、上記三成分のみからなる三成分混合冷媒であってもよく、さらに他の冷媒成分を含んでいてもよい。他の冷媒成分としては、例えば、Ｒ２９０、Ｒ１２７０、Ｒ１３４ａ、Ｒ１２５等または他のＨＦＣが挙げられる。 The refrigerant used in the present embodiment may be a three-component mixed refrigerant composed of only the above three components, and may further include other refrigerant components. Examples of other refrigerant components include R290, R1270, R134a, R125, and other HFCs.
他の成分の配合比率等は、本実施形態の主要な効果を妨げない範囲内において設定される。具体的には、冷媒全体の質量に対するＨＦＯ１１２３およびＨＦＯ１２１６の合計の比率が、９０質量％以上となるように、他の成分の配合比率を設定することが好ましい。 The blending ratio of the other components is set within a range that does not hinder the main effects of the present embodiment. Specifically, the blending ratio of the other components is preferably set so that the total ratio of HFO 1123 and HFO 1216 to the mass of the entire refrigerant is 90% by mass or more.
また、冷媒は、さらに冷凍機油を含有してもよい。冷凍機油としては、例えば、一般に用いられる冷凍機油（エステル系潤滑油、エーテル系潤滑油、フッ素系潤滑油、鉱物系潤滑油、炭化水素系潤滑油等）が挙げられる。その場合、冷媒との相溶性および安定性等の面で優れている冷凍機油を選択することが好ましい。 The refrigerant may further contain refrigeration oil. Examples of the refrigerating machine oil include commonly used refrigerating machine oils (such as ester-based lubricating oils, ether-based lubricating oils, fluorine-based lubricating oils, mineral-based lubricating oils, and hydrocarbon-based lubricating oils). In that case, it is preferable to select a refrigerating machine oil that is superior in terms of compatibility with the refrigerant and stability.
また、冷媒は、例えば過酷な使用条件において高度の安定性を要求される場合などには、必要に応じて安定剤をさらに含有してもよい。安定剤は熱および酸化に対する冷媒の安定性を向上させる成分である。安定剤としては、従来から冷凍サイクル装置に用いられる公知の安定剤、例えば、耐酸化性向上剤、耐熱性向上剤、金属不活性剤等が挙げられる。 Further, the refrigerant may further contain a stabilizer as necessary, for example, when a high degree of stability is required under severe use conditions. A stabilizer is a component that improves the stability of the refrigerant against heat and oxidation. As a stabilizer, the well-known stabilizer conventionally used for the refrigerating-cycle apparatus, for example, an oxidation resistance improver, a heat resistance improver, a metal deactivator, etc. are mentioned.
また、冷媒は、さらに重合禁止剤を含んでいてもよい。重合禁止剤としては、例えば、ハイドロキノン、ハイドロキノンメチルエーテル、ベンゾトリアゾール等が挙げられる。 The refrigerant may further contain a polymerization inhibitor. Examples of the polymerization inhibitor include hydroquinone, hydroquinone methyl ether, benzotriazole, and the like.
（実施形態１の変形例）
本変形例は、ＨＦＯ１１２３比率（ＨＦＯ１１２３およびＲ１２３４ｙｆの合計量に対するＨＦＯ１１２３の比率）の下限が３３質量％である点で、実施形態１とは異なる。それ以外の点は実施形態１と同様であるため、重複する説明は省略する。
(Modification of Embodiment 1)
This modification differs from Embodiment 1 in that the lower limit of the HFO 1123 ratio (the ratio of HFO 1123 to the total amount of HFO 1123 and R1234yf) is 33% by mass. Since the other points are the same as those of the first embodiment, a duplicate description is omitted.
図１から、ＨＦＯ１１２３比率が３３質量％以上である場合、ＨＦＯ１１２３およびＲ１２３４ｙｆの混合冷媒の飽和温度が、Ｒ４０７Ｃの飽和温度（４℃）より低くなることが分かる。この場合、冷媒としてＲ４０７Ｃが用いられていた既存の冷凍サイクル装置において、冷媒を本実施形態に係る冷媒に切り替えた場合でも、起動時の給油不良を抑制し、装置の信頼性を確保することができる。この点について、図４を参照して以下に説明する。 FIG. 1 shows that when the HFO1123 ratio is 33% by mass or more, the saturation temperature of the refrigerant mixture of HFO1123 and R1234yf is lower than the saturation temperature (4 ° C.) of R407C. In this case, in the existing refrigeration cycle apparatus in which R407C is used as the refrigerant, even when the refrigerant is switched to the refrigerant according to the present embodiment, it is possible to suppress poor oil supply at the time of startup and ensure the reliability of the apparatus. it can. This point will be described below with reference to FIG.
図４は、本変形例の効果を説明するための概略断面図である。なお、図４は、スクロール圧縮機を示しており、基本的に特開２０１３−１８１５１６号公報の図１と同じ図である。 FIG. 4 is a schematic cross-sectional view for explaining the effect of this modification. FIG. 4 shows a scroll compressor, which is basically the same as FIG. 1 of JP 2013-181516 A.
冷凍サイクル装置が停止（特に長時間）していると、給油経路内の潤滑油（冷凍機油）は下方に移動する。圧縮機内の油溜め２３の油面から給油ポンプ（オイルポンプ）２２までの経路は、低圧の作動媒体で満たされる。その後、冷凍サイクル装置の起動時は、圧縮機内の油溜め２３の油を給油ポンプ２２で吸い上げて圧縮機内に循環させる必要がある。 When the refrigeration cycle apparatus is stopped (particularly for a long time), the lubricating oil (refrigerator oil) in the oil supply path moves downward. The path from the oil level of the oil sump 23 in the compressor to the oil supply pump (oil pump) 22 is filled with a low-pressure working medium. Thereafter, when the refrigeration cycle apparatus is started, it is necessary to suck up the oil in the oil reservoir 23 in the compressor by the oil supply pump 22 and circulate it in the compressor.
冷凍機油の密度をρ、油溜め２３の油面から給油ポンプ２２までの垂直距離をｈとし、とすれば、油溜め２３の油面と給油ポンプ２２との間の空間の圧力をＰｓとすると、
ρｇｈ＜Ｐｓ
であれば、油溜め２３から給油ポンプ２２まで冷凍機油を吸い上げることができる。
If the density of the refrigerating machine oil is ρ, and the vertical distance from the oil level of the oil reservoir 23 to the oil supply pump 22 is h, then the pressure in the space between the oil surface of the oil reservoir 23 and the oil supply pump 22 is assumed to be Ps. ,
ρgh <Ps
If so, the refrigerating machine oil can be sucked up from the oil sump 23 to the oil supply pump 22.
既存の冷凍サイクル装置（ヒートポンプ式給湯機）では、従来の冷媒（Ｒ４０７Ｃなど）について、上記式が成立するように設計されている。すなわち、Ｐｓが従来の冷媒の最低動作圧力であるときに、上記式が成立するように設計されている。 In the existing refrigeration cycle apparatus (heat pump type hot water heater), the conventional refrigerant (R407C and the like) is designed so that the above formula is established. That is, it is designed so that the above equation is established when Ps is the minimum operating pressure of the conventional refrigerant.
そして、本変形例のように、使用する冷媒の飽和温度が、Ｒ４０７Ｃの飽和温度より低い場合、該冷媒の最低作動圧力はＲ４０７Ｃより高くなる。このため、既存の冷凍サイクル装置において、冷媒を本実施形態に係る冷媒に切り替えた場合でも、上記式が成立すると考えられる。 And when the saturation temperature of the refrigerant | coolant to be used is lower than the saturation temperature of R407C like this modification, the minimum operating pressure of this refrigerant | coolant will become higher than R407C. For this reason, in the existing refrigeration cycle apparatus, even when the refrigerant is switched to the refrigerant according to the present embodiment, the above formula is considered to hold.
したがって、本変形例によれば、既存の冷凍サイクル装置において、冷媒を本実施形態に係る冷媒に切り替えた場合でも、冷凍サイクル装置の起動時の給油不良を回避して、装置の信頼性を確保できる。 Therefore, according to this modification, even in the case where the refrigerant is switched to the refrigerant according to the present embodiment in the existing refrigeration cycle apparatus, the lubrication failure at the start of the refrigeration cycle apparatus is avoided, and the reliability of the apparatus is ensured it can.
［実施形態２］
本実施形態は、冷媒中に含まれるＲ１２３４ｙｆの代わりにＨＦＯ１２１６を用いる点で、実施形態１とは異なる。それ以外の点は、基本的に実施形態１と同様であるため、重複する説明については省略する。
[Embodiment 2]
The present embodiment is different from the first embodiment in that HFO 1216 is used instead of R1234yf contained in the refrigerant. Since the other points are basically the same as those of the first embodiment, a duplicate description is omitted.
本実施形態において、冷凍回路内に封入される冷媒は、ＨＦＯ１１２３およびＨＦＯ１２１６を含んでいる。なお、本実施形態において用いられる冷媒は、上記三成分のみからなる三成分混合冷媒であってもよく、さらに他の冷媒成分を含んでいてもよい。冷媒が他の成分を含んでいる場合、冷媒全体の質量に対するＨＦＯ１１２３およびＨＦＯ１２１６の合計の比率が、９０質量％以上であることが好ましい。 In the present embodiment, the refrigerant sealed in the refrigeration circuit includes HFO1123 and HFO1216. The refrigerant used in the present embodiment may be a three-component mixed refrigerant composed of only the above three components, and may further include other refrigerant components. When the refrigerant includes other components, the total ratio of HFO 1123 and HFO 1216 to the mass of the entire refrigerant is preferably 90% by mass or more.
ＨＦＯ１１２３およびＨＦＯ１２１６の合計量に対するＨＦＯ１１２３の比率は、１０質量％以上５０質量％以下である。該比率の下限は、好ましくは２４質量％以上である。該比率の上限は、好ましくは４０質量％未満であり、より好ましくは３０質量％未満である。 The ratio of HFO1123 to the total amount of HFO1123 and HFO1216 is 10% by mass or more and 50% by mass or less. The lower limit of the ratio is preferably 24% by mass or more. The upper limit of the ratio is preferably less than 40% by mass, more preferably less than 30% by mass.
図２は、実施形態２に係る冷媒の飽和温度を示すグラフ（ＨＦＯ１１２３／ＨＦＯ１２１６と記載した実線で示すグラフ）である。このグラフは、ＨＦＯ１１２３およびＨＦＯ１２１６からなる混合冷媒についての飽和温度を示しており、横軸の「ＨＦＯ１１２３比率」は、ＨＦＯ１１２３およびＨＦＯ１２１６の合計量に対するＨＦＯ１１２３の質量比率である。なお、図２では、Ｒ４０７Ｃの飽和温度を示す線（一点鎖線）を併せて示している。 FIG. 2 is a graph showing the saturation temperature of the refrigerant according to the second embodiment (a graph indicated by a solid line described as HFO1123 / HFO1216). This graph shows the saturation temperature for the mixed refrigerant composed of HFO1123 and HFO1216, and the “HFO1123 ratio” on the horizontal axis is the mass ratio of HFO1123 to the total amount of HFO1123 and HFO1216. In addition, in FIG. 2, the line (dashed line) which shows the saturation temperature of R407C is shown collectively.
図２から、ＨＦＯ１１２３比率が１０質量％以上である場合、飽和温度が−３３℃以下となることが分かる。したがって、実施形態１と同様の理由から、本実施形態の冷凍サイクル装置に用いる冷媒において、ＨＦＯ１１２３比率を１０質量％以上とすることで、冷凍回路内での負圧の発生を抑制することができる。 FIG. 2 shows that when the HFO1123 ratio is 10% by mass or more, the saturation temperature is −33 ° C. or less. Therefore, for the same reason as in the first embodiment, in the refrigerant used in the refrigeration cycle apparatus of the present embodiment, the generation of negative pressure in the refrigeration circuit can be suppressed by setting the HFO1123 ratio to 10% by mass or more. .
なお、本実施形態に用いる冷媒において、ＨＦＯ１１２３比率が５０質量％以下に設定されている点については、実施形態１と同様であり、実施形態１と同様の効果が奏される。 In addition, in the refrigerant | coolant used for this embodiment, it is the same as that of Embodiment 1 about the point by which HFO1123 ratio is set to 50 mass% or less, and there exists an effect similar to Embodiment 1. FIG.
また、本実施形態の冷媒のＧＷＰは、Ｒ４０７ＡのＧＷＰ（１７７４）、および、Ｒ１３４ａのＧＷＰ（１４３０）に対して大幅に低減されたものとなる。したがって、本実施形態の冷凍サイクル装置は、地球温暖化への影響が少ない。 Further, the GWP of the refrigerant of the present embodiment is greatly reduced compared to the GWP (1774) of R407A and the GWP (1430) of R134a. Therefore, the refrigeration cycle apparatus of this embodiment has little influence on global warming.
以上のことから、本実施形態の冷凍サイクル装置は、地球温暖化の影響が少なく、十分な性能を有し、かつ、冷凍回路内に負圧が発生せず、信頼性の高いものであることが分かる。 From the above, the refrigeration cycle apparatus of the present embodiment is highly reliable with little influence of global warming, sufficient performance, and no negative pressure generated in the refrigeration circuit. I understand.
（実施形態２の変形例）
本変形例は、ＨＦＯ１１２３比率（ＨＦＯ１１２３およびＨＦＯ１２１６の合計量に対するＨＦＯ１１２３の比率）の下限が２４質量％である点で、実施形態２とは異なる。それ以外の点は実施形態２と同様であるため、重複する説明は省略する。
(Modification of Embodiment 2)
The present modification is different from the second embodiment in that the lower limit of the HFO 1123 ratio (the ratio of HFO 1123 to the total amount of HFO 1123 and HFO 1216) is 24 mass%. Since the other points are the same as those of the second embodiment, the overlapping description is omitted.
図２から、ＨＦＯ１１２３比率が２４質量％以上である場合、ＨＦＯ１１２３およびＨＦＯ１２１６の混合冷媒の飽和温度が、Ｒ４０７Ｃの飽和温度（４℃）より低くなることが分かる。この場合、冷媒としてＲ４０７Ｃが用いられていた既存の冷凍サイクル装置において、冷媒を本実施形態に係る冷媒に切り替えた場合でも、起動時の給油不良を抑制し、装置の信頼性を確保することができる。この理由については、実施形態１の変形例において説明したとおりである。 2 that the saturation temperature of the mixed refrigerant of HFO 1123 and HFO 1216 is lower than the saturation temperature (4 ° C.) of R407C when the HFO 1123 ratio is 24% by mass or more. In this case, in the existing refrigeration cycle apparatus in which R407C is used as the refrigerant, even when the refrigerant is switched to the refrigerant according to the present embodiment, it is possible to suppress poor oil supply at the time of startup and ensure the reliability of the apparatus. it can. The reason for this is as described in the modification of the first embodiment.
１ 圧縮機、２ 流路切替弁、３ 室外熱交換器、４ 膨張弁、５ 室内熱交換器。 1 compressor, 2 flow path switching valve, 3 outdoor heat exchanger, 4 expansion valve, 5 indoor heat exchanger.
Claims (1)
圧縮機、室外熱交換器、室内熱交換器および膨張弁を含む冷凍回路を備え、
前記冷凍回路内に冷媒が封入されており、
前記冷媒は、ＨＦＯ１１２３およびＲ１２３４ｙｆを含有し、
ＨＦＯ１１２３およびＲ１２３４ｙｆの合計量に対するＨＦＯ１１２３の比率が３３質量％以上５０質量％以下である、ヒートポンプ式給湯機用の冷凍サイクル装置。
A refrigeration cycle apparatus in which R407C was used,
A refrigeration circuit including a compressor, an outdoor heat exchanger, an indoor heat exchanger and an expansion valve;
A refrigerant is enclosed in the refrigeration circuit,
The refrigerant contains HFO1123 and R1234yf,
A refrigeration cycle apparatus for a heat pump water heater, wherein the ratio of HFO 1123 to the total amount of HFO 1123 and R1234yf is 33% by mass or more and 50% by mass or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019101426A JP7171511B2 (en) | 2019-05-30 | 2019-05-30 | refrigeration cycle equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019101426A JP7171511B2 (en) | 2019-05-30 | 2019-05-30 | refrigeration cycle equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018501433A Division JP6608038B2 (en) | 2016-02-22 | 2016-02-22 | Refrigeration cycle equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2019138625A true JP2019138625A (en) | 2019-08-22 |
| JP7171511B2 JP7171511B2 (en) | 2022-11-15 |
Family
ID=67695192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019101426A Active JP7171511B2 (en) | 2019-05-30 | 2019-05-30 | refrigeration cycle equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7171511B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011502207A (en) * | 2007-10-31 | 2011-01-20 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Compositions containing iodotrifluoromethane and their use |
| WO2015125534A1 (en) * | 2014-02-20 | 2015-08-27 | 旭硝子株式会社 | Composition for heat cycle system, and heat cycle system |
| WO2015133622A1 (en) * | 2014-03-07 | 2015-09-11 | 三菱電機株式会社 | Refrigeration cycle apparatus |
-
2019
- 2019-05-30 JP JP2019101426A patent/JP7171511B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011502207A (en) * | 2007-10-31 | 2011-01-20 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Compositions containing iodotrifluoromethane and their use |
| WO2015125534A1 (en) * | 2014-02-20 | 2015-08-27 | 旭硝子株式会社 | Composition for heat cycle system, and heat cycle system |
| WO2015133622A1 (en) * | 2014-03-07 | 2015-09-11 | 三菱電機株式会社 | Refrigeration cycle apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7171511B2 (en) | 2022-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11441819B2 (en) | Refrigeration cycle apparatus | |
| CN111492188B (en) | Refrigeration cycle device and method for determining refrigerant-sealed amount in refrigeration cycle device | |
| US20200393178A1 (en) | Refrigeration cycle apparatus | |
| JP6934627B2 (en) | Working medium for refrigeration cycle and refrigeration cycle system | |
| US11435118B2 (en) | Heat source unit and refrigeration cycle apparatus | |
| US11493244B2 (en) | Air-conditioning unit | |
| US20200325376A1 (en) | Refrigeration cycle apparatus | |
| JP6608038B2 (en) | Refrigeration cycle equipment | |
| WO2020256134A1 (en) | Working medium for refrigeration cycle, and refrigeration cycle system | |
| JP6979564B2 (en) | Refrigeration cycle device | |
| JP2016503450A (en) | Low GWP heat transfer composition | |
| WO2021199725A1 (en) | Refrigeration cycle working medium and refrigeration cycle system | |
| JP6895622B2 (en) | Working medium for refrigeration cycle and refrigeration cycle system | |
| JP2018179404A (en) | Refrigeration cycle device | |
| JP2018177969A (en) | Refrigeration cycle device | |
| CN111895672B (en) | Refrigerator, working fluid for refrigerator, and refrigerator oil | |
| WO2017145244A1 (en) | Refrigeration cycle device | |
| JP7171511B2 (en) | refrigeration cycle equipment | |
| JP6899360B2 (en) | Refrigeration cycle equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190530 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200305 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200310 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200430 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200915 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20201030 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20210406 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210525 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20210907 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20211007 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20211124 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220112 |
|
| C60 | Trial request (containing other claim documents, opposition documents) |
Free format text: JAPANESE INTERMEDIATE CODE: C60 Effective date: 20220112 |
|
| A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20220131 |
|
| C21 | Notice of transfer of a case for reconsideration by examiners before appeal proceedings |
Free format text: JAPANESE INTERMEDIATE CODE: C21 Effective date: 20220201 |
|
| A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20220218 |
|
| C211 | Notice of termination of reconsideration by examiners before appeal proceedings |
Free format text: JAPANESE INTERMEDIATE CODE: C211 Effective date: 20220222 |
|
| C22 | Notice of designation (change) of administrative judge |
Free format text: JAPANESE INTERMEDIATE CODE: C22 Effective date: 20220510 |
|
| C13 | Notice of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: C13 Effective date: 20220802 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220824 |
|
| C23 | Notice of termination of proceedings |
Free format text: JAPANESE INTERMEDIATE CODE: C23 Effective date: 20220920 |
|
| C03 | Trial/appeal decision taken |
Free format text: JAPANESE INTERMEDIATE CODE: C03 Effective date: 20221101 |
|
| C30A | Notification sent |
Free format text: JAPANESE INTERMEDIATE CODE: C3012 Effective date: 20221101 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20221102 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 7171511 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |