Refrigeration cycle device and extraction device

Abstract

Provided is a refrigeration cycle device (10) in which a refrigerator oil and a mixed refrigerant that is obtained by mixing, with a refrigerant, an adsorbent for adsorbing and desorbing the refrigerant are circulated, said refrigeration cycle device (10) comprising an extraction unit (20), a compression unit (11), and a discharge side transportation unit (12). The extraction unit (20) extracts a component from the mixed refrigerant that flows thereinto in the state of containing the refrigerator oil, and supplies the component to an apparatus for cycle. The discharge side transportation unit (12) uses the pressure energy of a discharged refrigerant that has been discharged from the compression unit (11) to transport, to the discharged refrigerant side, the mixed refrigerant that has flowed out from the extraction unit. The extraction unit (20) includes a refrigerator oil extraction part (23), and supplies, to the intake port side of the compression unit (11), the refrigerator oil that has been extracted by the refrigerator oil extraction part. The refrigerator oil extraction part (23) extracts the refrigerator oil from the mixed refrigerant that flows thereinto in the state of containing the refrigerator oil.

Description

Refrigeration Cycle Device and Extraction Device Cross - reference to Related Applications 【0001】 This application is based on Japanese Patent Application No. 2024 - 216468 filed on December 11, 2024, the contents of which are incorporated herein by reference. 【0002】 The present disclosure relates to a refrigeration cycle device that circulates a mixed refrigerant in which an adsorbent is mixed with a refrigerant, and an extraction device used in a refrigeration cycle that circulates the mixed refrigerant. 【0003】 Conventionally, Patent Document 1 discloses a so - called hybrid refrigeration cycle device that circulates a mixed refrigerant in which an adsorbent is mixed with a refrigerant. In the hybrid refrigeration cycle device, the adsorbent functions as an adsorbent, and the refrigerant functions as an adsorbate. Therefore, the heat of adsorption when the adsorbent adsorbs the refrigerant and the heat of desorption when the adsorbent desorbs the refrigerant can be utilized. 【0004】 As a result, in the refrigeration cycle device of Patent Document 1, it is possible to lower the pressure of the refrigerant on the high - pressure side and improve the operating efficiency of the cycle compared to a normal vapor compression type refrigeration cycle device in which an adsorbent is not mixed with the refrigerant. 【0005】 International Publication No. 2024 / 004971 【0006】 Here, in a refrigeration cycle device that circulates a mixed refrigerant as in Patent Document 1, it is desirable to prevent the adsorbent that circulates as part of the mixed refrigerant from being sucked into the compressor. This is because if the adsorbent is sucked into the compression mechanism of the compressor, the compression performance of the compressor may be reduced. 【0007】 Also, in a general refrigeration cycle, in order to protect the compression mechanism of the compressor, it is known to circulate refrigeration oil together with the refrigerant. In a hybrid refrigeration cycle device that circulates a mixed refrigerant, it is considered preferable to circulate refrigeration oil through the compressor in order to protect the compression mechanism of the compressor. 【0008】In other words, in a hybrid refrigeration cycle, when refrigerant oil is added to a mixed refrigerant and circulated, it is necessary to appropriately extract and supply each element—adsorbent, refrigerant, and refrigerant oil—to the compressor in order to ensure the performance of the compressor and refrigeration cycle. 【0009】 In view of the above, the first objective of this disclosure is to provide a refrigeration cycle device that circulates refrigeration oil together with an adsorbent and a mixed refrigerant, and that can ensure the performance of the cycle by appropriately extracting and supplying elements such as refrigeration oil. The second objective is to provide an extraction device that can appropriately extract elements such as refrigeration oil and supply them to the cycle configuration in a refrigeration cycle using a mixed refrigerant. 【0010】 The refrigeration cycle device of the present disclosure is a refrigeration cycle device that circulates a mixed refrigerant, which is obtained by mixing an adsorbent that adsorbs and desorbs refrigerant with a refrigerant, and refrigerant oil together, and comprises an extraction unit, a compression unit, and a discharge-side transport unit. 【0011】 The extraction unit extracts components from the mixed refrigerant, which flows in containing refrigerant oil, and supplies them to the components of the cycle. The compression unit draws in the refrigerant that has flowed out of the extraction unit, compresses it, and discharges it. The discharge-side transport unit uses the pressure energy of the discharged refrigerant discharged from the compression unit to transport the mixed refrigerant that has flowed out of the extraction unit to the discharged refrigerant side. 【0012】 The extraction unit has a refrigerant oil extraction unit, which supplies the refrigerant oil extracted in the refrigerant oil extraction unit to the intake side of the compression unit. The refrigerant oil extraction unit extracts refrigerant oil from the mixed refrigerant that flows in containing refrigerant oil. 【0013】 With this type of refrigeration cycle device, a hybrid refrigeration cycle is constructed in which a mixed refrigerant, which is an adsorbent mixed with the refrigerant, is circulated together with refrigerant oil. As a result, the operating efficiency of the cycle can be improved compared to a typical vapor compression type refrigeration cycle. 【0014】Furthermore, the refrigeration cycle device is configured to extract components from the mixed refrigerant that flows in containing refrigerant oil and supply them to the components of the cycle, and has an extraction unit. Since the extraction unit has a refrigerant oil extraction unit, the refrigeration cycle device can supply the refrigerant oil extracted in the refrigerant oil extraction unit to the intake side of the compression unit. 【0015】 As a result, the refrigeration cycle device can supply the refrigerant oil extracted from the mixed refrigerant that flows in containing the refrigerant oil, via the refrigerant oil extraction unit of the extraction unit, to the compression unit. This protects the compression unit and ensures the performance of the compression unit and the refrigeration cycle. 【0016】 Furthermore, the extraction device of this disclosure constitutes a refrigeration cycle device that circulates a mixed refrigerant, which is obtained by mixing an adsorbent that adsorbs and desorbs refrigerant with the refrigerant, together with refrigerant oil. The device extracts constituent components from the mixed refrigerant that flows in while containing refrigerant oil and supplies them to the components of the cycle. 【0017】 The refrigeration cycle unit comprises a compression unit and a discharge-side transport unit. The compression unit draws in the refrigerant flowing out of the extraction unit, compresses it, and discharges it. The discharge-side transport unit uses the pressure energy of the discharged refrigerant discharged from the compression unit to transport the mixed refrigerant flowing out of the extraction unit to the discharged refrigerant side. 【0018】 The extraction device has a refrigerant oil extraction unit, which supplies the refrigerant oil extracted in the refrigerant oil extraction unit to the intake side of the compression unit. The refrigerant oil extraction unit extracts refrigerant oil from the mixed refrigerant that flows in containing refrigerant oil. 【0019】 With this type of extraction device, a hybrid refrigeration cycle is formed by circulating a mixed refrigerant (an adsorbent mixed with the refrigerant) together with refrigerant oil, along with a compression unit and a discharge-side transport unit. Therefore, it can contribute to improving the operating efficiency of the cycle compared to a typical vapor compression type refrigeration cycle. 【0020】Furthermore, the extraction device is configured to extract components from the mixed refrigerant that flows in with refrigerant oil in a hybrid refrigeration cycle and supply them to the components of the cycle, and has a refrigerant oil extraction unit. As a result, the extraction device can supply the refrigerant oil extracted in the refrigerant oil extraction unit to the intake side of the compression unit, thereby protecting the compression unit and ensuring the performance of the compression unit and the refrigeration cycle. 【0021】 The above-mentioned and other purposes, features and advantages of this disclosure will become clearer from the following detailed description with reference to the attached drawings. This is a schematic overall configuration diagram of a refrigeration cycle device according to the first embodiment. This is an axial cross-sectional view of an ejector according to the first embodiment. This is a schematic configuration diagram of an extraction device according to the first embodiment. This is an explanatory diagram showing the configuration of an extraction device according to the second embodiment. This is an explanatory diagram regarding the movement of the mixed refrigerant and refrigerant oil when they flow into the extraction device according to the second embodiment. This is an explanatory diagram showing the flow of the mixed refrigerant and refrigerant oil inside the extraction device according to the second embodiment. This is an explanatory diagram showing the configuration of an extraction device according to the third embodiment. This is an explanatory diagram regarding the movement of the mixed refrigerant and refrigerant oil when they flow into the extraction device according to the third embodiment. This is an explanatory diagram showing the flow of the mixed refrigerant and refrigerant oil inside the extraction device according to the third embodiment. 【0022】 Several embodiments for carrying out this disclosure are described below with reference to the drawings. In each embodiment, parts corresponding to matters described in a prior embodiment may be denoted by the same reference numerals, and redundant descriptions may be omitted. If only a part of the configuration is described in each embodiment, other parts of the configuration can be applied to other embodiments described in advance. Not only can parts that are explicitly shown to be combinable in each embodiment be combined, but embodiments can also be partially combined even if not explicitly shown, as long as there is no particular impediment to the combination. 【0023】(First Embodiment) A first embodiment of this disclosure will be described with reference to the drawings. In the first embodiment, the refrigeration cycle device 10 shown in the overall configuration diagram of Figure 1 is applied to the air conditioning system 1. The air conditioning system 1 includes the refrigeration cycle device 10, a control device 50, etc. The refrigeration cycle device 10 constitutes a refrigeration cycle in the air conditioning system 1 that adjusts the temperature of the air supplied to the room, which is the space to be air-conditioned. 【0024】 In the refrigeration cycle device 10, carbon dioxide (i.e., R744) is used as the refrigerant. The refrigerant is mixed with refrigeration oil to lubricate the compressor 11. For example, POE oil (polyol ester oil) is used as the refrigeration oil. A portion of the refrigeration oil circulates in the cycle together with the refrigerant. 【0025】 Furthermore, the refrigerant is mixed with an adsorbent. In a high-pressure environment, the adsorbent adsorbs at least some of the refrigerant, and in a low-pressure environment, it desorbs (in other words, removes) the adsorbed refrigerant. Moreover, when the adsorbent adsorbs the refrigerant, it releases the heat (i.e., internal energy) of the adsorbed refrigerant as heat of adsorption, and when it desorbs the refrigerant, it absorbs the surrounding heat as heat of desorption. 【0026】 Specifically, in this embodiment, a metal-organic frame (MOF) is used as the adsorbent. MOF is a porous material obtained by reacting metal ions with organic ligands. MOF is a polymeric structure that has countless openings inside due to the linkage between metal ions and organic ligands. 【0027】 MOFs allow for optimization of the aperture diameter through the combination of metal ions and organic ligands. By adjusting the aperture diameter, MOFs can selectively adsorb target substances. In this embodiment, an MOF suitable for adsorbing carbon dioxide, a refrigerant, is employed. 【0028】Furthermore, the adsorbent does not dissolve in the refrigerant, but is mixed with it in a powdery or particulate solid state. Moreover, the amount of adsorbent mixed with the refrigerant in this embodiment is less than the amount that can adsorb all of the refrigerant under the normal operating conditions of the refrigeration cycle device 10. For this reason, in the refrigeration cycle device 10, only the adsorbent does not circulate within the cycle. 【0029】 In the refrigeration cycle device 10 according to this embodiment, refrigerant oil, refrigerant, and adsorbent are circulated, and the densities of the refrigerant oil, refrigerant, and adsorbent are determined to have a predetermined relative order of magnitude. 【0030】 In other words, in a mixed refrigerant containing refrigerant oil, the density of the refrigerant is set to be the lowest and the density of the refrigerant oil to be the highest. The density of the adsorbent is set to be higher than that of the refrigerant and lower than that of the refrigerant oil. For example, an example of a density ratio under operating conditions is that the density ratio of the refrigerant is approximately 50 to 100 (kg / m³). ３ The density ratio of the refrigeration oil is set to be less than or equal to 1000 (kg / m³). ３ The density of the adsorbent is set to approximately 580 kg / m³. ３ ) is determined to be. 【0031】 Furthermore, in a mixed refrigerant containing refrigerant oil, the molecular weights of the refrigerant oil and the refrigerant are set such that the molecular weight of the refrigerant oil is greater than that of the refrigerant. For example, the molecular weight of the refrigerant is set to 44, and the molecular weight of the refrigerant oil is set to approximately 300. 【0032】 In the following explanation, for clarity, a refrigerant mixed with an adsorbent will be referred to as a mixed refrigerant, while a refrigerant not mixed with an adsorbent will be referred to as refrigerant, discharged refrigerant, discharge-side injected refrigerant, etc., without using the term "mixed." In the refrigeration cycle according to this embodiment, the refrigerant circulates through the cycle in a gaseous state. 【0033】 As shown in Figure 1, the refrigeration cycle device 10 according to the first embodiment includes a compressor 11, an ejector 12, a heat exchanger for heat dissipation 13, an expansion valve 14, a heat exchanger for heat absorption 15, and an extraction device 20. 【0034】The compressor 11 is a refrigerant compression unit in the refrigeration cycle device 10 that draws in the refrigerant extracted by the extraction device 20 (described later) together with the refrigerant oil, compresses it, and discharges it. The compressor 11 is an electric compressor that rotates a fixed-capacity compression mechanism with a fixed discharge capacity using an electric motor. As the compression mechanism, a rotary type compression mechanism, a scroll type compression mechanism, etc., can be used. The rotational speed (i.e., refrigerant discharge capacity) of the compressor 11 is controlled by a control signal output from the control device 50. The compressor 11 is an example of a compression unit. 【0035】 The inlet side of the nozzle portion 12a of the ejector 12 is connected to the discharge port of the compressor 11. The ejector 12 draws in the mixed refrigerant that has flowed out of the extraction device 20 through the suction port 12c formed in the body portion 12b by the suction action of the refrigerant injected from the nozzle portion 12a. The ejector 12 is an example of a discharge-side transport unit. 【0036】 As will be described later, in the extraction device 20, the refrigerant oil is already extracted and flows out to the ejector 12, so the proportion of adsorbent in the composition ratio of the mixed refrigerant drawn in at the suction port 12c of the ejector 12 is high. Furthermore, the ejector 12 converts the kinetic energy (i.e., expansion energy) of the mixed refrigerant, which is a mixture of the injected refrigerant and the adsorbent, into pressure energy, thereby increasing the pressure of the mixed refrigerant. 【0037】 Here, the specific configuration of the ejector 12 used in the refrigeration cycle device 10 will be described in detail with reference to Figure 2. As shown in Figure 2, the ejector 12 has a nozzle portion 12a and a body portion 12b. 【0038】 The nozzle portion 12a is a nozzle that converts the pressure energy of the discharged refrigerant discharged from the compressor 11 into kinetic energy and injects the refrigerant. The nozzle portion 12a is formed of a substantially cylindrical metal member (made of stainless steel in this embodiment) that gradually tapers in the direction of refrigerant flow. 【0039】The nozzle part 12a injects the injected refrigerant, which has been isentropically depressurized and accelerated to supersonic speed, into the mixing part 12e formed in the body part 12b. As the nozzle part 12a, a so-called Laval nozzle or a tapered nozzle can be adopted. 【0040】 The body part 12b supports and fixes the nozzle part 12a and forms the outer shell of the ejector 12. The body part 12b is formed of a substantially cylindrical member made of metal (in this embodiment, made of an aluminum alloy). The nozzle part 12a is fixed inside one end side in the longitudinal direction of the body part 12b by means such as press-fitting. The body part 12b may be formed of resin. 【0041】 In the cylindrical wall surface of the body part 12b, a suction port 12c is formed at a position corresponding to the outer peripheral side of the nozzle part 12a. The suction port 12c is provided so as to penetrate the inside and outside of the body part 12b and communicate with the refrigerant injection port of the nozzle part 12a. The suction port 12c is a through hole that sucks the mixed refrigerant flowing out from the extraction device 20 into the inside of the body part 12b by the suction action of the injected refrigerant injected from the nozzle part 12a. 【0042】 Inside the body part 12b, a suction passage 12d, a mixing part 12e, and a pressure boosting part 12f are formed. The suction passage 12d is a passage that guides the mixed refrigerant sucked from the suction port 12c to the mixing part 12e. The mixing part 12e is a space for mixing the mixed refrigerant sucked from the suction port 12c and the injected refrigerant. The mixing part 12e is formed in a substantially cylindrical shape. 【0043】 The pressure boosting part 12f is a space for boosting the pressure of the mixed refrigerant of the mixed refrigerant sucked from the suction port 12c and the injected refrigerant. The pressure boosting part 12f is formed in a frustum shape that expands the cross-sectional area in the flow direction of the mixed refrigerant. In the pressure boosting part 12f, the kinetic energy of the mixed refrigerant is converted into pressure energy by the action of the shock wave generated by the injected refrigerant and the expansion of the passage cross-sectional area. 【0044】Therefore, the ejector 12 is a discharge-side transport unit that uses the pressure energy of the discharged refrigerant discharged from the compressor 11 to transport the mixed refrigerant flowing out of the extraction device 20 to the side of the discharged refrigerant. In other words, the ejector 12 uses the pressure energy of the discharged refrigerant to mix the mixed refrigerant flowing out of the extraction device 20 with the injection refrigerant, which is the discharged refrigerant that has consumed pressure energy. 【0045】 As described above, the injection refrigerant in the ejector 12 is mainly composed of a refrigerant containing refrigerating machine oil. Also, the mixed refrigerant sucked from the suction port 12c of the ejector 12 is mainly composed of an adsorbent. Therefore, a mixed refrigerant to which refrigerating machine oil is added flows out from the outlet of the pressure boosting section 12f of the ejector 12. 【0046】 Returning to FIG. 1, the configuration of the refrigeration cycle device 10 will be described. The mixed refrigerant inlet side of the heat exchanger 13 for heat release is connected to the outlet of the pressure boosting section 12f of the ejector 12. The heat exchanger 13 for heat release is a heat release section that exchanges heat between the mixed refrigerant flowing out from the ejector 12 and the outside air blown from an outside air fan (not shown) to release the heat possessed by the mixed refrigerant to the outside air. 【0047】 The inlet side of the expansion valve 14 is connected to the mixed refrigerant outlet of the heat exchanger 13 for heat release. The expansion valve 14 is a mixed refrigerant decompression section that decompresses the mixed refrigerant flowing out from the heat exchanger 13 for heat release. Refrigerating machine oil flows into the expansion valve 14 together with the mixed refrigerant. In the expansion valve 14, the refrigerant contained in the mixed refrigerant is decompressed to reduce the pressure of the ambient refrigerant of the adsorbent. Further, the expansion valve 14 is a flow rate adjustment section that adjusts the flow rate of the mixed refrigerant flowing into the heat exchanger 15 for heat absorption. 【0048】 Specifically, the expansion valve 14 has a valve body portion and a drive portion. The valve body portion changes the throttle opening degree. The drive portion displaces the valve body portion. As the drive portion, an electric actuator such as a stepping motor or a brushless DC motor can be adopted. The operation of the expansion valve 14 is controlled by a control signal output from the control device 50. 【0049】The outlet of the expansion valve 14 is connected to the inlet side of the heat absorption heat exchanger 15. The heat absorption heat exchanger 15 exchanges heat between the heat absorption heat exchanger 15 and the air blown into the room from a blower (not shown) that has been depressurized by the expansion valve 14. The heat absorption heat exchanger 15 receives a mixture of refrigerant to which refrigerant oil has been added. The heat absorption heat exchanger 15 is a heat absorption section that cools the blown air by desorbing refrigerant from the adsorbent contained in the mixture of refrigerant and exerting a heat absorption effect. 【0050】 An extraction device 20 is connected to the outlet side of the heat absorption heat exchanger 15. The extraction device 20 separates and extracts the components of the mixed refrigerant, including refrigerant oil, flowing out of the heat absorption heat exchanger 15, and supplies them in an appropriate manner to the compressor 11 and ejector 12, which are components of the cycle. The specific configuration of the extraction device 20 will be described in detail later with reference to the drawings. 【0051】 The extraction device 20 has three connection ports: a mixed refrigerant inlet 21, a mixed refrigerant outlet 27, and a refrigerant outlet 30. As described above, the mixed refrigerant outlet side of the heat absorption heat exchanger 15 is connected to the mixed refrigerant inlet 21 of the extraction device 20. The suction port 12c of the ejector 12 is connected to the mixed refrigerant outlet 27 of the extraction device 20. The suction port side of the compressor 1 is connected to the refrigerant outlet 30 of the extraction device 20. 【0052】 In the extraction device 20, the adsorbent, refrigerant, and refrigerant oil are separated and extracted from the mixed refrigerant, which flows in from the mixed refrigerant inlet 21, containing the refrigerant oil. The extraction device 20 mainly supplies the mixed refrigerant, which is composed of the separated and extracted adsorbent, to the suction port 12c of the ejector 12 via the mixed refrigerant outlet 27. The extraction device 20 also supplies the separated and extracted refrigerant oil and refrigerant to the suction port of the compressor 11 via the refrigerant outlet 30. The extraction device 20 is an example of an extraction unit. 【0053】 Thus, in the air conditioning system 1 and the refrigeration cycle system 10, a mixed refrigerant containing refrigerant oil can be circulated in a circuit including a compressor 11, an ejector 12, a heat exchanger for heat dissipation 13, an expansion valve 14, a heat exchanger for heat absorption, and an extraction device 20. 【0054】Next, the control system of the air conditioning system 1 according to the first embodiment will be described. The control device 50 has a well-known microcomputer including a CPU, ROM, RAM, etc., and its peripheral circuits. The control device 50 performs various calculations and processes based on the control program stored in the ROM. Then, the control device 50 controls the operation of various controlled devices connected to the output side based on the calculation and processing results. Therefore, the control device 50 corresponds to an example of a control unit. 【0055】 Various control sensors are connected to the input side of the control device 50. The control sensors include an internal temperature sensor, an external temperature sensor, a high-pressure sensor, a high-pressure temperature sensor, an evaporator pressure sensor, an evaporator temperature sensor, and the like (not shown). 【0056】 The indoor temperature sensor is an indoor temperature detection unit that detects the indoor air temperature (i.e., indoor temperature) Tr. The outdoor temperature sensor is an outdoor temperature detection unit that detects the outdoor air temperature (i.e., outdoor temperature) Tam. 【0057】 The high-pressure sensor is a high-pressure detection unit that detects the high-pressure pressure Pd, which is the pressure of the mixed refrigerant flowing out of the heat exchanger 13. The high-pressure temperature sensor is a high-pressure temperature detection unit that detects the high-pressure temperature Td, which is the temperature of the mixed refrigerant flowing out of the heat exchanger 13. 【0058】 The evaporator pressure sensor is an evaporator pressure detection unit that detects the evaporator pressure Pe, which is the pressure of the mixed refrigerant flowing out of the heat absorption heat exchanger 15. The evaporator temperature sensor is an evaporator temperature detection unit that detects the evaporator temperature Te, which is the temperature of the mixed refrigerant flowing out of the heat absorption heat exchanger 15. 【0059】 Furthermore, an operation panel (not shown) is connected to the input side of the control device 50 by wire or wireless connection. The control device 50 receives operation signals from various operation switches provided on the operation panel. The various operation switches provided on the operation panel include an activation switch, a temperature setting switch, an airflow setting switch, and so on. 【0060】The control device 50 is an integrated unit that controls various controlled devices connected to the output side. Therefore, the configuration (hardware and software) that controls the operation of each controlled device constitutes the control unit that controls the operation of each controlled device. For example, the configuration of the control device 50 that controls the refrigerant discharge capacity of the compressor 11 constitutes the discharge capacity control unit. 【0061】 Next, the operation of the air conditioning system 1 according to the first embodiment will be described. In the air conditioning system 1, when the operating switch is turned on, the control device 50 executes a control program. The control program reads the detection signals of the control sensor group described above and the operation signals of the operation panel. 【0062】 Then, based on the read detection and operation signals, the operation of various controlled devices is controlled. Subsequently, until the termination condition of the control program is met, the control routine, which involves reading the detection and operation signals and controlling various controlled devices based on the detection and operation signals, is repeated at predetermined control cycles. 【0063】 More specifically, the control program for the air conditioning unit 1 controls the refrigerant discharge capacity of the compressor 11 so that the evaporator temperature Te detected by the evaporator temperature sensor approaches the target evaporator temperature TEO. The target evaporator temperature TEO is calculated based on the indoor temperature Tr detected by the indoor temperature sensor, the outdoor temperature Tam detected by the outdoor temperature sensor, the set temperature Tset set by the temperature setting switch, etc. 【0064】 Furthermore, the control program controls the throttle opening of the expansion valve 14 so that the high-pressure Pd detected by the high-pressure sensor approaches the target high-pressure PDO. The target high-pressure PDO is determined based on the high-pressure temperature Td detected by the high-pressure temperature sensor so that the cycle's operating efficiency approaches its maximum value. 【0065】 In the refrigeration cycle device 10, when the control device 50 operates the compressor 11, the compressor 11 draws in the low-pressure gaseous refrigerant flowing out from the refrigerant outlet 30 of the extraction device 20 together with the refrigerant oil, compresses it, and discharges it. 【0066】The discharged refrigerant from the compressor 11 flows into the nozzle section 12a of the ejector 12. The discharged refrigerant that flows into the nozzle section 12a is isentropically depressurized and injected into the mixing section 12e of the body section 12b. Then, due to the suction action of the injected refrigerant injected from the nozzle section 12a, the mixed refrigerant that flows out from the mixed refrigerant outlet 27 of the extraction device 20 is sucked in from the suction port 12c. At this point, the mixed refrigerant sucked in from the suction port 12c has a high proportion of adsorbent material due to the extraction device 20. 【0067】 The mixed refrigerant drawn in from the suction port 12c flows into the mixing section 12e via the suction passage 12d. At this time, if the mixed refrigerant drawn in from the suction port 12c contains a liquid phase refrigerant, the liquid phase refrigerant will absorb heat from the sprayed refrigerant and evaporate in the mixing section 12e. As a result, the mixed refrigerant in the mixing section 12e becomes a mixed refrigerant in which the adsorbent is mixed with the gaseous phase refrigerant, and flows into the pressurization section 12f. 【0068】 In the pressure boosting section 12f, the kinetic energy of the mixed refrigerant is converted into pressure energy due to the action of the shock wave generated by the injected refrigerant and the expansion of the passage cross-sectional area. As a result, the pressure of the mixed refrigerant increases. And as the pressure of the mixed refrigerant increases in the pressure boosting section 12f, the amount of adsorption by the adsorbent increases, and the volume of the mixed refrigerant decreases. 【0069】 The mixed refrigerant that flows out from the booster unit 12f flows into the heat exchanger 13. The mixed refrigerant, containing refrigerant oil, flows into the heat exchanger 13. The mixed refrigerant that flows into the heat exchanger 13 releases the internal energy stored when the adsorbent adsorbs the gas phase refrigerant as heat of adsorption to the outside air. 【0070】 When the mixed refrigerant, including refrigerant oil, flows out of the heat dissipation heat exchanger 13, it flows into the expansion valve 14 and is depressurized. The depressurized mixed refrigerant flows into the heat absorption heat exchanger 15. When it flows into the heat absorption heat exchanger 15, the mixed refrigerant, which includes refrigerant oil, desorbs from the adsorbent as the pressure drops. At this time, the adsorbent absorbs heat from the blown air as heat of desorption. Furthermore, if the mixed refrigerant contains liquid phase refrigerant, the liquid phase refrigerant evaporates and exerts an endothermic effect, thereby cooling the blown air. 【0071】 When the refrigerant mixture, including the refrigerant oil, flows out of the heat exchanger 15, it flows into the extraction device 20 through the refrigerant mixture inlet 21. In the extraction device 20, the refrigerant oil, adsorbent, and refrigerant that make up the refrigerant mixture are separated and extracted. The extraction device 20 then supplies the refrigerant mixture, mainly consisting of the separated and extracted adsorbent, to the suction port 12c of the ejector 12 via the refrigerant mixture outlet 27. The extraction device 20 also supplies the separated and extracted refrigerant oil and refrigerant to the suction port of the compressor 11 via the refrigerant outlet 30. 【0072】 Next, the configuration of the extraction device 20 in the refrigeration cycle device 10 according to the first embodiment will be described with reference to the drawings. As shown in Figure 3, the extraction device 20 according to the first embodiment has a first storage section 22, an oil separation section 23, an oil supply passage 24, a second storage section 25, an adsorbent separation section 26, a refrigerant supply passage 28, and a third storage section 29. 【0073】 The first storage section 22 is a storage section that houses the mixed refrigerant, including refrigerant oil, supplied to the extraction device 20 via the mixed refrigerant inlet 21. In addition to the mixed refrigerant inlet 21 described above, the first storage section 22 is provided with an oil separation section 23 and an oil supply passage 24. 【0074】 The oil separation unit 23 separates and extracts refrigerant oil from the mixed refrigerant containing refrigerant oil that flows into the first containment unit 22. The oil separation unit 23 is located between the first containment unit 22 and the second containment unit 25, and is configured to allow the flow of the mixed refrigerant consisting of an adsorbent and refrigerant, and to collect the refrigerant oil. The oil separation unit 23 corresponds to an example of a refrigerant oil extraction unit. 【0075】 The oil separation unit 23 can employ, for example, a separation membrane that prevents the entry of substances with a molecular weight larger than a predetermined amount, while allowing the entry of smaller substances. As described above, in a mixed refrigerant containing refrigerant oil, the molecular weight of the refrigerant oil is the largest, so the oil separation unit 23 can separate and extract the refrigerant oil from the mixed refrigerant containing the refrigerant oil. The refrigerant oil separated by the oil separation unit 23 remains on the first storage unit 22 side and accumulates at the bottom of the first storage unit 22. 【0076】One end of the oil supply passage 24 is connected to the lower part of the first storage section 22. The oil supply passage 24 is a passage through which the refrigerant oil separated and extracted by the oil separation section 23 flows, and in the first embodiment, it connects the lower part of the first storage section 22 and the lower part of the third storage section 29. Therefore, in the extraction device 20, the refrigerant oil separated and extracted by the oil separation section 23 can be supplied to the third storage section 29 via the oil supply passage 24. 【0077】 Furthermore, an adsorbent intrusion prevention mechanism is provided on the first containment section 22 side of the oil supply passage 24. The adsorbent intrusion prevention mechanism prevents the adsorbent from entering the oil supply passage 24. This prevents the adsorbent from flowing into the third containment section 29 together with the refrigeration oil through the oil supply passage 24. 【0078】 The second storage section 25 is a storage section that houses the mixed refrigerant supplied via the oil separation section 23. The second storage section 25 is provided with an adsorbent separation section 26, a mixed refrigerant outlet 27, and a refrigerant supply passage 28. 【0079】 The adsorbent separation unit 26 extracts adsorbents from the mixed refrigerant flowing into the second containment unit 25, separating the refrigerant from the adsorbents. The adsorbent separation unit 26 is located between the second containment unit 25 and the refrigerant supply passage 28, and can be composed of, for example, a filter that collects adsorbents from the components of the mixed refrigerant flowing into the second containment unit 25 while allowing the flow of the refrigerant. Therefore, the adsorbent separation unit 26 can also be considered as separating the refrigerant from the mixed refrigerant and leaving the adsorbents on the second containment unit 25 side, and can be considered an example of a refrigerant separation unit. The refrigerant supply passage 28 is a flow path connecting the second containment unit 25 and the third containment unit 29, and the refrigerant separated from the mixed refrigerant in the adsorbent separation unit 26 flows through it. 【0080】 Furthermore, a mixed refrigerant outlet 27 is formed at the lower part of the second housing section 25. Once separated in the adsorbent separation section 26, the adsorbent remains inside the second housing section 25 and accumulates at the lower part of the second housing section 25. Since the mixed refrigerant outlet 27 is formed at the lower part of the second housing section 25 (for example, the bottom surface of the second housing section 25), it allows the adsorbent separated in the adsorbent separation section 26 to flow out of the second housing section 25. 【0081】 As shown in Figure 3, the suction port 12c of the ejector 12 is connected to the mixed refrigerant outlet 27 of the extraction device 20. The mixed refrigerant flowing out from the mixed refrigerant outlet 27 is supplied to the suction port 12c of the ejector 12 in a state where it is mainly occupied by adsorbent, as the refrigerant has been separated in the adsorbent separation unit 26. The refrigerant separated in the adsorbent separation unit 26 flows through the refrigerant supply passage 28 and is supplied to the third storage unit 29. 【0082】 The third housing section 29 is connected to an oil supply passage 24 extending from the first housing section 22 and a refrigerant supply passage 28 extending from the second housing section 25. The refrigerant oil that has flowed through the oil supply passage 24 and the refrigerant that has flowed through the refrigerant supply passage 28 flow into the third housing section 29. 【0083】 A refrigerant outlet 30 is formed on the upper surface of the third housing section 29. The suction side of the compressor 11 is connected to the refrigerant outlet 30. A U-shaped pipe 29a is arranged inside the third housing section 29, and one end of the U-shaped pipe 29a is connected to the refrigerant outlet 30. Therefore, when the compressor 11 is operating, it can draw in refrigerant and refrigerant oil from inside the third housing section 29 through the U-shaped pipe 29a. 【0084】 The U-shaped pipe 29a has one end and the other end facing upward and is configured to be folded back on the bottom side of the third housing section 29, and has an oil inlet 29b and a refrigerant inlet 29c. The oil inlet 29b is formed in the folded portion of the U-shaped pipe 29a and communicates the inside of the third housing section 29 and the inside of the U-shaped pipe 29a near the bottom surface of the third housing section 29. Since refrigerant oil that has flowed in through the oil supply passage 24 is accumulated in the lower part of the third housing section 29, the refrigerant oil stored in the third housing section 29 can be sucked in through the oil inlet 29b. 【0085】 The refrigerant inlet 29c is an opening formed at the other end of the U-shaped pipe 29a and is located in the upper part of the third housing section 29. In other words, the refrigerant inlet 29c is located above the liquid level of the refrigerant oil stored in the third housing section 29. Therefore, when the compressor 11 is operating, the refrigerant inlet 29c can draw in the refrigerant that flows into the third housing section 29 via the refrigerant supply passage 28. 【0086】 In this way, the extraction device 20 can supply the refrigerant and refrigerant oil that have flowed into the third storage section 29 via the U-shaped pipe 29a to the suction port side of the compressor 11. As a result, refrigerant oil can be supplied to the compression mechanism in conjunction with the operation of the refrigeration cycle device 10, thereby ensuring the performance of the compressor 11 and the refrigeration cycle. 【0087】 In the first embodiment, the third storage section 29 and the refrigerant outlet 30 supply the refrigerant and refrigerant oil extracted from the mixed refrigerant containing refrigerant oil to the compressor 11, and therefore correspond to an example of a supply section on the compression section side. Also, the mixed refrigerant outlet 27 in the first embodiment supplies the mixed refrigerant, which is mainly composed of adsorbents separated and extracted in the adsorbent separation section 26, to the ejector 12, and therefore corresponds to an example of a supply section on the transport section side. 【0088】 Next, the operation of the extraction device 20 according to the first embodiment will be described with reference to the drawings. When the compressor 11 is started and the refrigeration cycle device 10 is started, the mixed refrigerant containing refrigerant oil flows out from the heat absorption heat exchanger 15 and flows into the inside of the extraction device 20 from the mixed refrigerant inlet 21. 【0089】 When the mixed refrigerant flows into the first storage section 22 from the mixed refrigerant inlet 21, the mixed refrigerant containing refrigerant oil flows through the first storage section 22 and reaches the oil separation section 23. In the oil separation section 23, the refrigerant oil is extracted from the mixed refrigerant containing refrigerant oil and separated from it. The extracted refrigerant oil is stored in the lower part of the first storage section 22. Since the oil supply passage 24 is connected to the lower part of the first storage section 22, the refrigerant oil flows out from the first storage section 22 toward the third storage section 29 via the oil supply passage 24. 【0090】 The mixed refrigerant that has passed through the oil separation section 23 flows into the second containment section 25. The mixed refrigerant that has flowed through the second containment section 25 reaches the adsorbent separation section 26. The adsorbent separation section 26 extracts and separates the adsorbent from the refrigerant, which is a component of the mixed refrigerant. 【0091】The mixed refrigerant flowing into the second containment section 25 passes through the adsorbent separation section 26 and is separated into refrigerant flowing through the refrigerant supply passage 28 and adsorbent collected in the adsorbent separation section 26 and remaining on the second containment section 25 side. The adsorbent remaining on the second containment section 25 side is stored at the bottom of the second containment section 25 and flows out of the extraction device 20 from the mixed refrigerant outlet 27. The mixed refrigerant flowing out from the mixed refrigerant outlet 27 is supplied to the suction port 12c of the ejector 12. The mixed refrigerant flowing out from the mixed refrigerant outlet 27 is mainly composed of adsorbent. 【0092】 The refrigerant that has passed through the adsorbent separation section 26 flows into the third housing section 29 via the refrigerant supply passage 28. As described above, since the oil supply passage 24 is connected to the third housing section 29, the refrigerant oil separated and extracted in the oil separation section 23 is supplied from the first housing section 22 to the third housing section 29. In the third housing section 29, the refrigerant oil that has passed through the oil supply passage 24 and the refrigerant that has passed through the refrigerant supply passage 28 merge, so that the refrigerant can be supplied to the suction port side of the compressor 11 together with the refrigerant oil via the U-shaped pipe 29a. 【0093】 Thus, according to the refrigeration cycle device 10 and extraction device 20 of the first embodiment, when a mixed refrigerant containing refrigerant oil is circulating, the extraction device 20 can extract the refrigerant oil from the mixed refrigerant containing refrigerant oil and supply it to the suction port side of the compressor 11. 【0094】 As a result, the refrigeration cycle device 10 and the extraction device 20 can stably supply refrigerant oil to the compression mechanism of the compressor 11, thereby protecting the compression mechanism of the compressor 11. By protecting the compression mechanism, the refrigeration cycle device 10 and the extraction device 20 can ensure the performance of the compressor 11 and the refrigeration cycle. 【0095】Furthermore, in the first embodiment, the refrigeration cycle device 10 and extraction device 20, in a configuration in which a mixed refrigerant containing refrigerant oil is circulated, supply the adsorbent extracted by the extraction device 20 to the ejector 12 located on the discharge side of the compressor 11 via the mixed refrigerant outlet 27. In other words, since the refrigeration cycle device 10 and extraction device 20 can supply the adsorbent from the extraction device 20 to the ejector 12 by bypassing the compressor 11, it is possible to prevent the adsorbent extracted from the mixed refrigerant containing refrigerant oil from being sucked into the compressor 11. 【0096】 As a result, in a configuration in which a mixed refrigerant containing refrigerant oil circulates, the refrigeration cycle device 10 and the extraction device 20 can prevent a decrease in the performance of the compressor 11 due to the inflow of adsorbents, thereby preventing a decrease in the performance of the refrigeration cycle. 【0097】 Furthermore, in the refrigeration cycle device 10 and extraction device 20 according to the first embodiment, in a configuration in which a mixed refrigerant containing refrigerant oil is circulated, the mixed refrigerant, mainly consisting of adsorbents separated by the adsorbent separation unit 26, can be supplied to the suction port 12c of the ejector 12. 【0098】 When a mixed refrigerant containing refrigerant oil is supplied to the suction port 12c of the ejector 12, the amount of adsorbent transported by the ejector 12 is thought to decrease in proportion to the amount of refrigerant oil included. In a refrigeration cycle device 10 using a mixed refrigerant, the amount of heat due to adsorption and desorption to the adsorbent is thought to have a significant impact, so a decrease in the flow rate of the adsorbent is thought to be a factor in the deterioration of the performance of the refrigeration cycle. In the refrigeration cycle device 10 and extraction device 20 according to the first embodiment, by supplying the mixed refrigerant to the ejector 12 with a reduced amount of refrigerant oil, the performance of the refrigeration cycle can be maintained at a higher level than when refrigerant oil is included. 【0099】 Furthermore, according to the refrigeration cycle device 10 and extraction device 20 of the first embodiment, when a mixed refrigerant containing refrigerant oil is circulating, the refrigerant oil separated in the oil separation unit 23 and the refrigerant that has flowed through the refrigerant supply passage 28 can be combined in the third storage unit 29 and supplied to the compressor 11. 【0100】As a result, the refrigeration cycle device 10 and extraction device 20 according to the first embodiment can stably supply refrigerant oil to the compression mechanism of the compressor 11 as the refrigeration cycle operates, thereby protecting the compression mechanism of the compressor 11. By protecting the compression mechanism, the refrigeration cycle device 10 and extraction device 20 can ensure the performance of the compressor 11 and the refrigeration cycle. 【0101】 As described above, the refrigeration cycle device 10 and extraction device 20 according to the first embodiment configure a refrigeration cycle that circulates a mixed refrigerant containing refrigerant oil, thereby improving the operating efficiency of the cycle compared to a general vapor compression type refrigeration cycle. 【0102】 The refrigeration cycle device 10 and the extraction device 20 are configured to extract components from a mixed refrigerant containing refrigerant oil and supply them to the components of the cycle, and have an oil separation unit 23. Therefore, the refrigeration cycle device 10 and the extraction device 20 can supply the refrigerant oil separated and extracted in the oil separation unit 23 to the suction port side of the compressor 11. 【0103】 As a result, the refrigeration cycle device 10 and the extraction device 20 can supply the refrigerant oil extracted from the mixed refrigerant containing the refrigerant oil by the oil separation unit 23 to the compressor 11, thereby protecting the compressor 11 and ensuring the performance of the compressor 11 and the refrigeration cycle. 【0104】 Furthermore, the refrigeration cycle device 10 and extraction device 20 according to the first embodiment can supply the adsorbent separated and extracted in the adsorbent separation unit 26 to the suction port 12c of the ejector 12 located on the discharge port side of the compressor 11 via the mixed refrigerant outlet 27. 【0105】 As a result, when the refrigeration cycle device 10 and the extraction device 20 are configured to circulate a mixed refrigerant containing refrigerant oil, the flow of adsorbent from the extraction device 20 can bypass the compressor 11, preventing the adsorbent from flowing into the compressor 11. Consequently, the refrigeration cycle device 10 and the extraction device 20 can prevent a decrease in the performance of the compressor 11 caused by the inflow of adsorbent, and thus prevent a decrease in the performance of the refrigeration cycle. 【0106】 Furthermore, according to the refrigeration cycle device 10 and extraction device 20 of the first embodiment, when circulating a mixed refrigerant containing refrigerant oil, the mixed refrigerant that has passed through the oil separation unit 23 can be supplied to the ejector 12 via the mixed refrigerant outlet 27. For this reason, the mixed refrigerant flowing through the mixed refrigerant outlet 27 is in a state where the refrigerant oil has been separated and extracted, and therefore mainly consists of an adsorbent. 【0107】 When a mixed refrigerant containing refrigerant oil is supplied to the ejector 12, the amount of adsorbent transported by the ejector 12 is expected to decrease in proportion to the amount of refrigerant oil included. In a refrigeration cycle device 10 using a mixed refrigerant, the amount of heat generated by adsorption and desorption to the adsorbent is considered to have a significant impact, so a decrease in the flow rate of the adsorbent is expected to be a factor in the deterioration of the performance of the refrigeration cycle. 【0108】 In this regard, the refrigeration cycle device 10 and extraction device 20 according to the first embodiment can maintain higher refrigeration cycle performance than when refrigeration oil is included, by supplying the mixed refrigerant to the ejector 12 with a reduced amount of refrigeration oil. 【0109】 Furthermore, according to the refrigeration cycle device 10 and extraction device 20 of the first embodiment, when a mixed refrigerant containing refrigerant oil is circulating, the refrigerant oil separated in the oil separation unit 23 and the refrigerant that has flowed through the refrigerant supply passage 28 can be combined in the third storage unit 29 and supplied to the compressor 11. 【0110】 As a result, the refrigeration cycle device 10 and extraction device 20 according to the first embodiment can stably supply refrigerant oil to the compression mechanism of the compressor 11 as the refrigeration cycle operates, thereby protecting the compression mechanism of the compressor 11. By protecting the compression mechanism, the refrigeration cycle device 10 and extraction device 20 can ensure the performance of the compressor 11 and the refrigeration cycle. 【0111】(Second Embodiment) Next, a second embodiment, which differs from the embodiment described above, will be described with reference to Figures 4 to 6. The refrigeration cycle device 10 according to the second embodiment is applied to the air conditioning device 1, similar to the first embodiment, and the configuration of the extraction device 20 differs from that of the first embodiment. Therefore, the other components of the refrigeration cycle device 10 according to the second embodiment (for example, the compressor 11, ejector 12, control device 50, etc.) are the same as those of the first embodiment described above, and will not be described again. 【0112】 In the following explanation, symbols may be used to represent the adsorbent Ad, refrigerant oil O, and refrigerant R. For example, in Figures 5 and 6, the adsorbent Ad is represented by a pentagonal symbol, the refrigerant oil O by a circular symbol, and the refrigerant R by a triangular symbol. 【0113】 The extraction device 20 according to the second embodiment has, similar to the first embodiment, a mixed refrigerant inlet 21, a first storage section 22, an oil separation section 23, an oil supply passage 24, a second storage section 25, an adsorbent separation section 26, a mixed refrigerant outlet 27, a refrigerant supply passage 28, a third storage section 29, and a refrigerant outlet 30. 【0114】 As shown in Figure 4, the extraction apparatus 20 according to the second embodiment has a casing 31, a cylindrical filter 32, and an adsorbent container 35. The casing 31 constitutes the outer shell of the extraction apparatus 20 according to the second embodiment and houses the cylindrical filter 32 and the adsorbent container 35 inside. 【0115】 As shown in Figures 4 and 6, the cylindrical filter 32 is positioned in the upper part of the casing 31 and is configured as a cylindrical filter. The filter constituting the cylindrical filter 32 collects the adsorbent Ad that makes up the mixed refrigerant, and also has the property of permeating the refrigerant R and refrigerant oil O in a gaseous state. Furthermore, the inner surface of the cylindrical filter 32 forms a guide surface that guides the flow of the mixed refrigerant, forming a swirling flow of the mixed refrigerant containing refrigerant oil. 【0116】Furthermore, inside the casing 31 of the extraction device 20, an adsorbent container 35 is positioned below the cylindrical filter 32. The adsorbent container 35 is a container in which the adsorbent Ad collected by the cylindrical filter 32 is stored, and has an opening 36 and a storage section 37. 【0117】 The opening 36 of the adsorbent container 35 is formed to leave the top surface of the adsorbent container 35 open. Furthermore, the opening edge of the opening 36 is formed in a funnel shape that slopes upward as it moves away from the center of the opening. This allows the adsorbent Ad collected by the cylindrical filter 32 to be guided into the inside of the adsorbent container 35 from the opening 36 when it moves downward due to gravity. 【0118】 The storage section 37 constitutes the lower part of the adsorbent container 35 and is the part where the adsorbent Ad collected by the cylindrical filter 32 is stored. The adsorbent Ad that passes through the opening 36 is stored in the storage section 37 of the adsorbent container 35. 【0119】 The casing 31 has a mixed refrigerant inlet 21, a refrigerant-side connection part 22a, an oil-side connection part 25a, and a mixed refrigerant outlet 27. The mixed refrigerant inlet 21 is formed at the top of the casing 31 and connects the outside of the casing 31 with the inner space of the cylindrical filter 32. 【0120】 As in the first embodiment, the mixed refrigerant outlet side of the heat absorption heat exchanger 15 is connected to the mixed refrigerant inlet 21. Therefore, in the extraction device 20 according to the second embodiment, the mixed refrigerant containing refrigerant oil flows into the inner space of the cylindrical filter 32 via the mixed refrigerant inlet 21. 【0121】 Here, as shown in Figure 5, the mixed refrigerant inlet 21 is formed to extend along the tangent to the circular cross-section of the cylindrical filter 32. As a result, the mixed refrigerant flowing in from the mixed refrigerant inlet 21 flows along the inner surface of the cylindrical filter 32, thereby forming a swirling flow of the mixed refrigerant containing refrigerant oil inside the casing 31. 【0122】The refrigerant-side connection portion 22a is formed in the central part of the upper surface of the casing 31, and on the upper side of the casing 31, it connects the inner space of the cylindrical filter 32 to the outside of the casing 31. As shown in Figure 4, the third housing portion 29 is connected to the refrigerant-side connection portion 22a via a refrigerant supply passage 28. The refrigerant-side connection portion 22a allows the refrigerant R separated and extracted from the mixed refrigerant containing refrigerant oil inside the casing 31 to flow out and guide it to the third housing portion 29 via the refrigerant supply passage 28. 【0123】 The oil-side connection portion 25a is formed at the lower part of the casing 31 to connect the inside and outside of the casing 31. The oil-side connection portion 25a is formed at a height, for example, approximately the same as the bottom surface of the casing 31. As shown in Figure 4, the third housing portion 29 is connected to the oil-side connection portion 25a via an oil supply passage 24. Therefore, the oil-side connection portion 25a allows the refrigerant oil O, which has been separated and extracted from the mixed refrigerant containing the refrigerant oil, to flow out from inside the casing 31 and be guided to the third housing portion 29 via the oil supply passage 24. 【0124】 The mixed refrigerant outlet 27 is formed at the lower part of the casing 31 so as to connect the inside of the storage section 37 in the adsorbent container 35 with the outside of the casing 31. The mixed refrigerant outlet 27 is formed to be at approximately the same height as the bottom surface of the storage section 37, for example. 【0125】 Therefore, the mixed refrigerant outlet 27 allows the mixed refrigerant, which is mainly composed of adsorbent Ad, to flow out of the casing 31 from the storage section 37 of the adsorbent container 35. Similar to the embodiment described above, the suction port 12c of the ejector 12 is connected to the mixed refrigerant outlet 27, so the extraction device 20 according to the second embodiment can supply the mixed refrigerant, which is mainly composed of adsorbent Ad, to the ejector 12. 【0126】Next, the operation of the extraction device 20 according to the second embodiment will be described. In the extraction device 20 according to the second embodiment, when the refrigeration cycle is started, the mixed refrigerant containing refrigerant oil O flows into the inside of the cylindrical filter 32 through the mixed refrigerant inlet 21. Here, the mixed refrigerant inlet 21 is formed to be along the tangent to the horizontal cross-section formed by the inner surface of the cylindrical filter 32. As a result, when the mixed refrigerant containing refrigerant oil flows in from the mixed refrigerant inlet 21, it flows along the inner surface of the cylindrical filter 32 and forms a swirling flow inside the cylindrical filter 32. 【0127】 As the mixture flows in a swirling manner, centrifugal force acts on the components of the refrigerant mixture, including the refrigerant oil, from the inside to the outside of the cylindrical filter 32. Here, the cylindrical filter 32 is configured to collect the adsorbent Ad while allowing the refrigerant oil O and refrigerant R to permeate. As a result, as shown in Figure 5, the adsorbent Ad is separated and extracted from the refrigerant mixture containing the refrigerant oil O at the inner surface of the cylindrical filter 32. 【0128】 At this time, since the refrigerant R is in a gaseous state in the mixed refrigerant flowing as a swirling flow, the refrigerant R moves upward through the inner space of the cylindrical filter 32 and flows out to the outside of the casing 31 via the refrigerant-side connection part 22a. As shown in Figure 4, the third housing part 29 is connected to the refrigerant-side connection part 22a via the refrigerant supply passage 28. Therefore, in the extraction device 20 according to the second embodiment, the separated and extracted gaseous refrigerant is supplied to the inside of the third housing part 29 via the refrigerant-side connection part 22a and the refrigerant supply passage 28. 【0129】 Due to the centrifugal force associated with the swirling flow, the refrigerant oil O moves radially through the cylindrical filter 32 toward the inner surface of the casing 31. By using the centrifugal force from the swirling flow, the density difference between the refrigerant R, the adsorbent Ad, and the refrigerant oil O, and the cylindrical filter 32, the refrigerant oil O can be separated and extracted from the mixed refrigerant containing the refrigerant oil. 【0130】As shown in Figure 6, the adsorbent Ad attached to the inner surface of the cylindrical filter 32 moves downward due to gravity. Below the cylindrical filter 32, there is an inclined opening 36 that widens as it approaches the top. As a result, the adsorbent Ad that falls from the inner surface of the cylindrical filter 32 is reliably contained inside the adsorbent container 35 through the opening 36 and stored in the storage section 37. 【0131】 As shown in Figures 4 and 6, a mixed refrigerant outlet 27 is formed at the bottom of the storage section 37 in the adsorbent container 35. Since the mixed refrigerant outlet 27 is formed along the bottom surface of the storage section 37, the adsorbent Ad in the storage section 37 flows out of the extraction device 20 through the mixed refrigerant outlet 27. As described above, the suction port 12c side of the ejector 12 is connected to the mixed refrigerant outlet 27, so the mixed refrigerant, mainly composed of the adsorbent Ad, is supplied from the storage section 37 of the adsorbent container 35 to the ejector 12. 【0132】 Meanwhile, due to the swirling flow formed by the cylindrical filter 32, refrigerant oil O adheres to the inner surface of the casing 31. As shown in Figure 6, due to the action of gravity, the refrigerant oil O moves along the inner surface of the casing 31, through the space between the casing 31 and the adsorbent container 35, and is stored at the bottom of the casing 31. 【0133】 As described above, an oil-side connection portion 25a is formed at the bottom of the casing 31, connecting the inside and outside of the casing 31. As shown in Figure 4, a third storage portion 29 is connected to the oil-side connection portion 25a via an oil supply passage 24. Therefore, according to the extraction device 20 of the second embodiment, the refrigerant oil O separated and extracted inside the casing 31 can be merged with the refrigerant that has flowed through the refrigerant supply passage 28 in the third storage portion 29. 【0134】In the second embodiment as well, a refrigerant outlet 30 is formed in the third housing section 29. The suction port side of the compressor 11 is connected to the refrigerant outlet 30, as in the embodiment described above. Therefore, the refrigerant R that has flowed through the refrigerant-side connection section 22a and the refrigerant supply passage 28 and the refrigerant oil O that has flowed through the oil-side connection section 25a and the oil supply passage 24 can be combined and supplied to the suction port side of the compressor 11. 【0135】 The extraction apparatus 20 according to the second embodiment is characterized by the formation of a swirling flow with a mixed refrigerant containing refrigerant oil, thereby applying centrifugal force to each component of the refrigerant, adsorbent, and refrigerant oil, and by the separation of each component by a cylindrical filter 32. 【0136】 Therefore, in the extraction apparatus 20 according to the second embodiment, the oil separation unit 23 can be said to be composed of a mixed refrigerant inlet 21, a casing 31, and a cylindrical filter 32. Similarly, the adsorbent separation unit 26 according to the second embodiment can be said to be composed of a mixed refrigerant inlet 21 and a cylindrical filter 32. The above-mentioned features of the extraction apparatus 20 according to the second embodiment are realized by the relative positional relationship of the mixed refrigerant inlet 21, the casing 31, and the cylindrical filter 32. 【0137】 Thus, according to the refrigeration cycle device 10 and extraction device 20 of the second embodiment, when a mixed refrigerant containing refrigerant oil is circulating, the extraction device 20 can extract the refrigerant oil from the mixed refrigerant containing refrigerant oil and supply it to the suction port side of the compressor 11. 【0138】 As a result, the refrigeration cycle device 10 and the extraction device 20 can stably supply refrigerant oil to the compression mechanism of the compressor 11, thereby protecting the compression mechanism of the compressor 11. By protecting the compression mechanism, the refrigeration cycle device 10 and the extraction device 20 can ensure the performance of the compressor 11 and the refrigeration cycle. 【0139】Furthermore, in the second embodiment, the refrigeration cycle device 10 and extraction device 20, in an embodiment in which a mixed refrigerant containing refrigerant oil is circulated, supply the adsorbent extracted by the extraction device 20 to the ejector 12 located on the discharge side of the compressor 11 via the mixed refrigerant outlet 27. In other words, since the refrigeration cycle device 10 and extraction device 20 can supply the adsorbent from the extraction device 20 to the ejector 12 by bypassing the compressor 11, it is possible to prevent the adsorbent extracted from the mixed refrigerant containing refrigerant oil from being sucked into the compressor 11. 【0140】 As a result, the refrigeration cycle device 10 and extraction device 20 according to the second embodiment can supply the refrigerant containing refrigerant oil obtained by separating and extracting the adsorbent to the compressor 11 in a configuration in which a mixed refrigerant containing refrigerant oil is circulated. This ensures that the compressor 11 is supplied with refrigerant containing refrigerant oil, and prevents the inflow of adsorbent oil, thereby preventing a decrease in the performance of the compressor 11 due to the inflow of adsorbent oil, and thus preventing a decrease in the performance of the refrigeration cycle. 【0141】 Furthermore, in the refrigeration cycle device 10 and extraction device 20 according to the second embodiment, in a configuration in which a mixed refrigerant containing refrigerant oil is circulated, the mixed refrigerant, mainly consisting of adsorbents separated by the adsorbent separation unit 26, can be supplied to the suction port 12c of the ejector 12. 【0142】 When a mixed refrigerant containing refrigerant oil is supplied to the suction port 12c of the ejector 12, the amount of adsorbent transported by the ejector 12 is expected to decrease in proportion to the amount of refrigerant oil included. Therefore, the refrigeration cycle device 10 and extraction device 20 according to the second embodiment can maintain higher refrigeration cycle performance than when refrigerant oil is included by supplying the mixed refrigerant to the ejector 12 with a reduced amount of refrigerant oil. 【0143】 Furthermore, according to the refrigeration cycle device 10 and extraction device 20 of the second embodiment, when a mixed refrigerant containing refrigerant oil is circulating, the refrigerant oil separated in the oil separation unit 23 and the refrigerant that has flowed through the refrigerant supply passage 28 can be combined and supplied to the compressor 11. 【0144】As a result, the refrigeration cycle device 10 and extraction device 20 according to the second embodiment can stably supply refrigerant oil to the compression mechanism of the compressor 11 as the refrigeration cycle operates, thereby protecting the compression mechanism of the compressor 11. By protecting the compression mechanism, the refrigeration cycle device 10 and extraction device 20 can ensure the performance of the compressor 11 and the refrigeration cycle. 【0145】 As described above, according to the refrigeration cycle device 10 and extraction device 20 of the second embodiment, even if the internal configuration of the extraction device 20 is changed, the effects and advantages obtained from the common configuration and operation of the above-described embodiment can be obtained. 【0146】 (Third Embodiment) Next, a third embodiment, which differs from the embodiments described above, will be described with reference to Figures 7 to 9. The refrigeration cycle device 10 according to the third embodiment is applied to the air conditioning device 1, similar to the embodiments described above, and the configuration of the extraction device 20 differs from that of the embodiments described above. Specifically, the extraction device 20 according to the third embodiment differs from the extraction device 20 according to the second embodiment in terms of the internal configuration of the mixed refrigerant inlet 21 and its surroundings. 【0147】 Therefore, the other components of the refrigeration cycle device 10 according to the third embodiment (for example, the compressor 11, ejector 12, control device 50, etc.) and the other components of the extraction device 20 (for example, the adsorbent container 35, third housing section 29, etc.) are the same as those of the embodiments described above. For this reason, further explanation of the other components of the refrigeration cycle device 10 and the extraction device 20 will be omitted. 【0148】 The extraction device 20 according to the third embodiment has, similar to the embodiment described above, a mixed refrigerant inlet 21, a first storage section 22, an oil separation section 23, an oil supply passage 24, a second storage section 25, an adsorbent separation section 26, a mixed refrigerant outlet 27, a refrigerant supply passage 28, a third storage section 29, and a refrigerant outlet 30. 【0149】As shown in Figure 7, the extraction apparatus 20 according to the third embodiment includes a casing 31, an adsorbent collection section 33, an adsorbent guide section 34, and an adsorbent container 35. The casing 31, similar to the second embodiment, constitutes the outer shell of the extraction apparatus 20 according to the third embodiment and houses the adsorbent collection section 33, the adsorbent guide section 34, and the adsorbent container 35 inside. 【0150】 In the third embodiment, the upper part of the casing 31 is formed so that its horizontal cross-section is circular. Similar to the extraction device 20 in the second embodiment, a mixed refrigerant inlet 21 is formed in the upper part of the casing 31. 【0151】 Similar to the embodiment described above, the mixed refrigerant outlet side of the heat absorption heat exchanger 15 is connected to the mixed refrigerant inlet 21, thereby connecting the heat absorption heat exchanger 15 to the inside of the casing 31. In the extraction device 20 according to the third embodiment, the mixed refrigerant containing refrigerant oil flows into the upper part of the internal space of the casing 31 via the mixed refrigerant inlet 21. 【0152】 Here, as shown in Figure 8, the mixed refrigerant inlet 21 is formed to extend along the tangent to the circular cross-section of the casing 31. As a result, the mixed refrigerant flowing in from the mixed refrigerant inlet 21 flows along the inner surface of the casing 31, thereby forming a swirling flow of the mixed refrigerant containing refrigerant oil inside the casing 31. 【0153】 Furthermore, in the extraction apparatus 20 according to the third embodiment, an adsorbent collection unit 33 is arranged inside the casing 31 so as to face the mixed refrigerant inlet 21. The adsorbent collection unit 33 collects adsorbents from the mixed refrigerant, which includes refrigerant oil, while allowing the flow of the refrigerant and refrigerant oil. The adsorbent collection unit 33 is located in the upper part of the casing 31, and is biased toward the radially outer portion of the casing 31, which has a circular cross-section, and is formed to follow the inner surface of the casing 31. 【0154】As shown in Figures 7 to 9, the adsorbent collection section 33 is composed of an inner filter formed in the shape of a wall extending circumferentially from the center of the upper part of the casing 31, and a wall-shaped filter extending radially from the end of the inner filter toward the inner surface of the casing 31. The filters constituting the adsorbent collection section 33 collect the adsorbent Ad that constitutes the mixed refrigerant, and also have the property of permeating the refrigerant R and refrigerant oil O in the gaseous phase. 【0155】 Below the adsorbent collection section 33, an adsorbent guide section 34 is positioned. The adsorbent guide section 34 guides the adsorbent collected by the adsorbent collection section 33 to the opening 36 of the adsorbent container 35 when the adsorbent moves downward. 【0156】 Specifically, the adsorbent guide section 34 is composed of a plate-shaped filter member and is positioned below the adsorbent collection section 33, connecting the inner surface of the casing 31 and the opening 36 in the adsorbent container 35. The plate-shaped adsorbent guide section 34 is inclined so that it is positioned downward as it approaches the opening edge of the opening 36 from the inner surface of the casing 31. The filter constituting the adsorbent guide section 34 has the property of permeating refrigerant oil and is surface-treated to promote the movement of the adsorbent. 【0157】 As a result, the adsorbent guide section 34 can guide the adsorbent collected by the adsorbent collection section 33 to the opening 36 of the adsorbent container 35 via the inclined filter surface when the adsorbent falls. Furthermore, since the adsorbent guide section 34 is permeable to refrigerant oil, it does not obstruct the movement of refrigerant oil moving along the inner surface of the casing 31. 【0158】 In the extraction apparatus 20 according to the third embodiment, an adsorbent container 35 is located inside the casing 31, below the adsorbent collection section 33 and the adsorbent guide section 34. The adsorbent container 35 is a container in which the adsorbent Ad collected by the adsorbent collection section 33 and the adsorbent guide section 34 is stored, and has an opening 36 and a storage section 37. The configuration of the opening 36 and the storage section 37 in the adsorbent container 35 is the same as in the second embodiment described above, so a further explanation is omitted. 【0159】 As shown in Figures 7 and 9, in the extraction apparatus 20 according to the third embodiment, the casing 31 also has a refrigerant-side connection portion 22a, an oil-side connection portion 25a, and a mixed refrigerant outlet 27. In the third embodiment, the refrigerant-side connection portion 22a is formed in the central part of the upper surface of the casing 31, and on the upper side of the casing 31, it connects the inner space of the casing 31 to the outside of the casing 31. As shown in Figure 7, the third housing portion 29 is connected to the refrigerant-side connection portion 22a via a refrigerant supply passage 28. The refrigerant-side connection portion 22a allows the refrigerant R separated and extracted from the mixed refrigerant containing refrigerant oil inside the casing 31 to flow out and guide it to the third housing portion 29 via the refrigerant supply passage 28. 【0160】 In the third embodiment, the oil-side connection portion 25a is formed at the lower part of the casing 31 to communicate the inside and outside of the casing 31. As shown in Figure 7, the third housing portion 29 is connected to the oil-side connection portion 25a via an oil supply passage 24. Therefore, the oil-side connection portion 25a allows refrigerant oil O, which has been separated and extracted from the mixed refrigerant containing refrigerant oil, to flow out from inside the casing 31 and be guided to the third housing portion 29 via the oil supply passage 24. 【0161】 The mixed refrigerant outlet 27 is formed at the lower part of the casing 31 so as to connect the inside of the storage section 37 in the adsorbent container 35 with the outside of the casing 31. The mixed refrigerant outlet 27 is formed to be at approximately the same height as the bottom surface of the storage section 37, for example. 【0162】 Therefore, the mixed refrigerant outlet 27 allows the mixed refrigerant, which is mainly composed of adsorbent Ad, to flow out of the casing 31 from the storage section 37 of the adsorbent container 35. Since the suction port 12c of the ejector 12 is connected to the mixed refrigerant outlet 27, the extraction device 20 according to the third embodiment can supply the mixed refrigerant, which is mainly composed of adsorbent Ad, to the ejector 12. 【0163】Next, the operation of the extraction device 20 according to the third embodiment will be described. In the extraction device 20 according to the third embodiment, when the refrigeration cycle is started, the mixed refrigerant containing the refrigerant oil O flows into the internal space of the adsorbent collection section 33 through the mixed refrigerant inlet 21. 【0164】 As a result, in the third embodiment, the adsorbent Ad is extracted and separated from the mixed refrigerant containing refrigerant oil by the filter constituting the adsorbent collection section 33. Furthermore, since the filter constituting the adsorbent collection section 33 has the property of permeating refrigerant R and refrigerant oil O, the refrigerant containing refrigerant oil flows along the inner surface of the casing 31. 【0165】 In this third embodiment, the mixed refrigerant inlet 21 is formed to follow the tangent to the horizontal cross-section formed on the inner surface of the casing 31. As a result, the mixed refrigerant containing refrigerant oil that has flowed through the adsorbent collection section 33 flows along the inner surface of the casing 31, forming a swirling flow inside the casing 31. 【0166】 As the refrigerant flows in a swirling manner, centrifugal force acts on the components of the refrigerant, including the refrigerant oil, from the inside to the outside of the casing 31. At this time, since the refrigerant R, which constitutes the refrigerant including the refrigerant oil, is in a gaseous state, the refrigerant R moves upward through the inner space of the casing 31 and flows out to the outside of the casing 31 through the refrigerant-side connection part 22a. In addition, due to the centrifugal force associated with the swirling flow, the refrigerant oil O moves radially outward toward the inner surface of the casing 31 and adheres to the inner surface of the casing 31. 【0167】 As shown in Figure 7, the third housing section 29 is connected to the refrigerant-side connection section 22a via the refrigerant supply passage 28. Therefore, in the extraction device 20 according to the third embodiment, the separated and extracted gaseous refrigerant is supplied to the inside of the third housing section 29 via the refrigerant-side connection section 22a and the refrigerant supply passage 28. 【0168】As shown in Figure 9, the adsorbent Ad attached to the inner surface of the adsorbent collection section 33 moves downward due to gravity. Below the adsorbent collection section 33, an adsorbent guide section 34 is positioned. The adsorbent guide section 34 is inclined so that it is positioned downward as it approaches the opening 36, and the adsorbent that has moved is guided to the opening 36 by the upper surface of the adsorbent guide section 34. As a result, the adsorbent Ad is reliably contained inside the adsorbent container 35 through the opening 36 and stored in the storage section 37. 【0169】 As shown in Figures 7 and 9, a mixed refrigerant outlet 27 is formed at the bottom of the storage section 37 in the adsorbent container 35. Since the mixed refrigerant outlet 27 is formed along the bottom surface of the storage section 37, the adsorbent Ad in the storage section 37 flows out of the extraction device 20 through the mixed refrigerant outlet 27. As described above, the suction port 12c side of the ejector 12 is connected to the mixed refrigerant outlet 27, so the mixed refrigerant, mainly composed of the adsorbent Ad, is supplied from the storage section 37 of the adsorbent container 35 to the ejector 12. 【0170】 Meanwhile, due to the swirling flow formed inside the casing 31, refrigerant oil O adheres to the inner surface of the casing 31. As shown in Figure 9, due to the action of gravity, the refrigerant oil O moves along the inner surface of the casing 31, through the space between the casing 31 and the adsorbent container 35, and is stored at the bottom of the casing 31. 【0171】 As described above, an oil-side connection portion 25a is formed at the bottom of the casing 31, connecting the inside and outside of the casing 31. As shown in Figure 7, the third storage portion 29 is connected to the oil-side connection portion 25a via an oil supply passage 24. Therefore, according to the extraction device 20 of the third embodiment, the refrigerant oil O separated and extracted inside the casing 31 can be merged with the refrigerant that has flowed through the refrigerant supply passage 28 in the third storage portion 29. 【0172】In the third embodiment as well, a refrigerant outlet 30 is formed in the third housing section 29. The suction port side of the compressor 11 is connected to the refrigerant outlet 30, as in the embodiments described above. Therefore, the refrigerant R that has flowed through the refrigerant-side connection section 22a and the refrigerant supply passage 28 and the refrigerant oil O that has flowed through the oil-side connection section 25a and the oil supply passage 24 can be combined and supplied to the suction port side of the compressor 11. 【0173】 The extraction apparatus 20 according to the third embodiment is characterized in that it separates and extracts adsorbents from a mixed refrigerant containing refrigerant oil using an adsorbent collection unit 33, etc., and forms a swirling flow with the refrigerant containing refrigerant oil that has flowed through the adsorbent collection unit 33, thereby applying centrifugal force to the refrigerant and refrigerant oil. 【0174】 Therefore, in the extraction apparatus 20 according to the third embodiment, the oil separation unit 23 can be said to consist of a mixed refrigerant inlet 21, a casing 31, and an adsorbent collection unit 33. Similarly, the adsorbent separation unit 26 according to the third embodiment can be said to consist of a mixed refrigerant inlet 21, an adsorbent collection unit 33, and an adsorbent guide unit 34. 【0175】 Thus, according to the refrigeration cycle device 10 and extraction device 20 of the third embodiment, when a mixed refrigerant containing refrigerant oil is circulating, the extraction device 20 can extract the refrigerant oil from the mixed refrigerant containing refrigerant oil and supply it to the suction port side of the compressor 11. 【0176】 As a result, the refrigeration cycle device 10 and the extraction device 20 can stably supply refrigerant oil to the compression mechanism of the compressor 11, thereby protecting the compression mechanism of the compressor 11. By protecting the compression mechanism, the refrigeration cycle device 10 and the extraction device 20 can ensure the performance of the compressor 11 and the refrigeration cycle. 【0177】Furthermore, in the third embodiment, the refrigeration cycle device 10 and extraction device 20, in an embodiment in which a mixed refrigerant containing refrigerant oil is circulated, supply the adsorbent extracted by the extraction device 20 to the ejector 12 located on the discharge side of the compressor 11 via the mixed refrigerant outlet 27. In other words, since the refrigeration cycle device 10 and extraction device 20 can supply the adsorbent from the extraction device 20 to the ejector 12 by bypassing the compressor 11, it is possible to prevent the adsorbent extracted from the mixed refrigerant containing refrigerant oil from being sucked into the compressor 11. 【0178】 As a result, the refrigeration cycle device 10 and extraction device 20 according to the third embodiment can supply the refrigerant containing refrigerant oil obtained by separating and extracting the adsorbent to the compressor 11 in a configuration in which a mixed refrigerant containing refrigerant oil is circulated. This ensures that the compressor 11 is supplied with refrigerant containing refrigerant oil, and prevents the inflow of adsorbent oil, thereby preventing a decrease in the performance of the compressor 11 due to the inflow of adsorbent oil, and thus preventing a decrease in the performance of the refrigeration cycle. 【0179】 Furthermore, in the refrigeration cycle device 10 and extraction device 20 according to the third embodiment, in a configuration in which a mixed refrigerant containing refrigerant oil is circulated, the mixed refrigerant, mainly consisting of adsorbents separated by the adsorbent separation unit 26, can be supplied to the suction port 12c of the ejector 12. 【0180】 When a mixed refrigerant containing refrigerant oil is supplied to the suction port 12c of the ejector 12, the amount of adsorbent transported by the ejector 12 is expected to decrease in proportion to the amount of refrigerant oil included. Therefore, the refrigeration cycle device 10 and extraction device 20 according to the third embodiment can maintain higher refrigeration cycle performance than when refrigerant oil is included by supplying the mixed refrigerant to the ejector 12 with a reduced amount of refrigerant oil. 【0181】 Furthermore, according to the refrigeration cycle device 10 and extraction device 20 of the third embodiment, when a mixed refrigerant containing refrigerant oil is circulating, the refrigerant oil separated in the oil separation unit 23 and the refrigerant that has flowed through the refrigerant supply passage 28 can be combined and supplied to the compressor 11. 【0182】As a result, the refrigeration cycle device 10 and extraction device 20 according to the third embodiment can stably supply refrigerant oil to the compression mechanism of the compressor 11 as the refrigeration cycle operates, thereby protecting the compression mechanism of the compressor 11. By protecting the compression mechanism, the refrigeration cycle device 10 and extraction device 20 can ensure the performance of the compressor 11 and the refrigeration cycle. 【0183】 As described above, according to the refrigeration cycle device 10 and extraction device 20 of the third embodiment, even if the method for separating and extracting the refrigeration oil, refrigerant, and adsorbent is changed, the effects and advantages obtained from the common configuration and operation of the above-described embodiment can be obtained. 【0184】 This disclosure is not limited to the embodiments described above, and can be modified in various ways without departing from the spirit of this disclosure, as follows. 【0185】 In the embodiments described above, an example of applying the refrigeration cycle device 10 according to the present disclosure to an air conditioning system was explained, but the application of the refrigeration cycle device 10 according to the present disclosure is not limited to this. For example, it may be applied to vehicle air conditioning systems, refrigeration systems, refrigerators, etc. 【0186】 Furthermore, although the above-described embodiment explained an example in which R744 was used as the refrigerant and MOF was used as the adsorbent, it is not limited to this. As long as the conditions are met, in addition to R744, R1234yf, R134a, R600a, R410A, R404A, R32, R407C, R290, ammonia, R1234ze, or a mixture thereof may be used as the refrigerant. 【0187】 Furthermore, in addition to MOFs, zeolites, activated carbon, and hydrates may be used as adsorbents in this disclosure, provided that the conditions are met. 【0188】 Furthermore, in adsorbents with pores, when the representative opening diameter of the pores on the surface of the adsorbent is defined as the average opening diameter, it is desirable that the representative diameter of the molecules constituting the refrigerant is smaller than the average opening diameter. 【0189】The representative opening diameter of a pore can be defined as the diameter of the circle that has the average opening area of ​​the pore. Similarly, the representative diameter of a refrigerant molecule can be defined as the diameter of a sphere having the average volume of a single molecule, obtained by dividing the molecular weight of the refrigerant by its density at standard conditions and Avogadro's number. 【0190】 The separation and extraction methods in the oil separation unit 23 and the adsorbent separation unit 26 in the above-described embodiment are merely examples and are not limited to the embodiments described. For example, with respect to the oil separation unit, various embodiments can be adopted as long as it is possible to extract refrigerant oil from a mixed refrigerant containing refrigerant oil. Similarly, as the adsorbent separation unit, various embodiments can be adopted as long as it is possible to separate and extract adsorbents from a mixed refrigerant containing refrigerant oil. 【0191】 When separating and extracting the components of refrigerant oil, refrigerant, and adsorbent from a mixed refrigerant containing refrigerant oil, the method is not limited to configurations using centrifugal separation or collision separation that utilize the differences in density and molecular weight of each component, as in the embodiments described above. It is also possible to separate and extract each component from a mixed refrigerant containing refrigerant oil by utilizing the physical and chemical characteristics of each component. 【0192】The features of the refrigeration cycle apparatus disclosed herein are as follows: (Item 1) A refrigeration cycle apparatus that circulates a mixed refrigerant, which is obtained by mixing an adsorbent that adsorbs and desorbs refrigerant with the refrigerant, and refrigerant oil together, comprising: an extraction unit (20) that extracts constituent components from the mixed refrigerant that flows in containing the refrigerant oil and supplies them to the components of the cycle; a compression unit (11) that sucks in the refrigerant that has flowed out of the extraction unit, compresses it, and discharges it; and a discharge-side transport unit (12) that uses the pressure energy of the discharged refrigerant discharged from the compression unit to transport the mixed refrigerant that has flowed out of the extraction unit to the discharged refrigerant side, wherein the extraction unit has a refrigerant oil extraction unit (23) that extracts the refrigerant oil from the mixed refrigerant that flows in containing the refrigerant oil, and the refrigerant oil extracted by the refrigerant oil extraction unit is supplied to the intake side of the compression unit. (Item 2) The refrigeration cycle apparatus according to Item 1, wherein the extraction unit (20) restricts the flow of the adsorbent to the suction port side of the compression unit (11) of the mixed refrigerant that flows in containing the refrigerant oil. (Item 3) The refrigeration cycle apparatus according to Item 1 or 2, wherein the extraction unit (20) supplies the remaining mixed refrigerant after the refrigerant oil has been extracted to the discharge side transport unit (12). (Item 4) The refrigeration cycle apparatus according to any one of Items 1 to 3, wherein the extraction unit (20) comprises: a refrigerant separation unit (26) for separating the refrigerant from the remaining mixed refrigerant after the refrigerant oil has been extracted; a compression unit side supply unit (29, 30) for supplying the extracted refrigerant oil together with the refrigerant separated in the refrigerant separation unit to the suction port side of the compression unit; and a transport unit side supply unit (27) for supplying the remaining mixed refrigerant separated in the refrigerant separation unit to the discharge side transport unit.(Item 5) A refrigeration cycle device (10) comprising a refrigerant mixed with a refrigerant, which is obtained by mixing an adsorbent that adsorbs and desorbs refrigerant with the refrigerant, and a refrigerant oil, and an extraction device (20) that extracts constituent components from the mixed refrigerant which flows in containing the refrigerant oil and supplies them to the components of the cycle, wherein the refrigeration cycle device comprises a compression unit (11) that inhales the refrigerant which has flowed out of the extraction device, compresses it and discharges it, and a discharge-side transport unit (12) that uses the pressure energy of the discharged refrigerant discharged from the compression unit to transport the mixed refrigerant which has flowed out of the extraction device to the discharged refrigerant side, wherein the extraction device comprises a refrigerant oil extraction unit (23) that extracts the refrigerant oil from the mixed refrigerant which flows in containing the refrigerant oil, and an extraction device that supplies the refrigerant oil extracted in the refrigerant oil extraction unit to the intake side of the compression unit. (Item 6) The extraction device (20) is the extraction device according to Item 5, wherein the extraction device (20) restricts the flow of the adsorbent to the suction port side of the compression unit (11) of the mixed refrigerant that flows in containing the refrigerant oil. (Item 7) The extraction device (20) is the extraction device according to Item 5 or 6, wherein the extraction device (20) supplies the remaining mixed refrigerant after the refrigerant oil has been extracted to the discharge side transport unit (12). (Item 8) The extraction device (20) is the extraction device according to any one of Items 5 to 7, comprising: a refrigerant separation unit (26) for separating the refrigerant from the remaining mixed refrigerant after the refrigerant oil has been extracted; a compression unit side supply unit (29, 30) for supplying the extracted refrigerant oil together with the refrigerant separated in the refrigerant separation unit to the suction port side of the compression unit; and a transport unit side supply unit (27) for supplying the remaining mixed refrigerant separated in the refrigerant separation unit to the discharge side transport unit. 【0193】 This disclosure is described in accordance with the embodiments, but it is understood that this disclosure is not limited to such embodiments or structures. This disclosure also includes various modifications and variations within the equivalence. In addition, various combinations and forms, as well as other combinations and forms that include only one, more, or fewer of those elements, fall within the scope and concept of this disclosure.

Claims

1. A refrigeration cycle device that circulates a mixed refrigerant, which is obtained by mixing an adsorbent that adsorbs and desorbs refrigerant with the refrigerant, and refrigerant oil together, comprising: an extraction unit (20) that extracts constituent components from the mixed refrigerant that flows in containing the refrigerant oil and supplies them to the components of the cycle; a compression unit (11) that sucks in the refrigerant that flows out from the extraction unit, compresses it, and discharges it; and a discharge-side transport unit (12) that uses the pressure energy of the discharged refrigerant discharged from the compression unit to transport the mixed refrigerant that flows out from the extraction unit to the discharged refrigerant side, wherein the extraction unit has a refrigerant oil extraction unit (23) that extracts the refrigerant oil from the mixed refrigerant that flows in containing the refrigerant oil, and the refrigerant oil extracted by the refrigerant oil extraction unit is supplied to the intake side of the compression unit.

2. The refrigeration cycle apparatus according to claim 1, wherein the extraction unit (20) restricts the flow of the adsorbent toward the intake side of the compression unit (11) of the mixed refrigerant that flows in while containing the refrigerant oil.

3. The refrigeration cycle apparatus according to claim 1 or 2, wherein the extraction unit (20) supplies the remaining mixed refrigerant after the refrigerant oil has been extracted to the discharge side transport unit (12).

4. The refrigeration cycle apparatus according to claim 1, wherein the extraction unit (20) comprises: a refrigerant separation unit (26) for separating the refrigerant from the remaining mixed refrigerant after the refrigerant oil has been extracted; a compression unit side supply unit (29, 30) for supplying the extracted refrigerant oil together with the refrigerant separated in the refrigerant separation unit to the intake side of the compression unit; and a transport unit side supply unit (27) for supplying the remaining mixed refrigerant separated in the refrigerant separation unit to the discharge side transport unit.

5. A refrigeration cycle device (10) comprising a refrigerant mixed with a refrigerant, which is obtained by mixing an adsorbent that adsorbs and desorbs refrigerant with the refrigerant, and a refrigerant oil, wherein an extraction device (20) extracts constituent components from the mixed refrigerant that flows in containing the refrigerant oil and supplies them to the components of the cycle, wherein the refrigeration cycle device comprises a compression unit (11) that inhales, compresses, and discharges the refrigerant that flows out of the extraction device, and a discharge-side transport unit (12) that uses the pressure energy of the discharged refrigerant discharged from the compression unit to transport the mixed refrigerant that flows out of the extraction device to the discharged refrigerant side, wherein the extraction device comprises a refrigerant oil extraction unit (23) that extracts the refrigerant oil from the mixed refrigerant that flows in containing the refrigerant oil, and an extraction device that supplies the refrigerant oil extracted by the refrigerant oil extraction unit to the intake side of the compression unit.

6. The extraction device (20) according to claim 5, wherein the extraction device (20) restricts the flow of the adsorbent toward the intake side of the compression unit (11) of the mixed refrigerant that flows in while containing the refrigerant oil.

7. The extraction apparatus according to claim 5 or 6, wherein the extraction apparatus (20) supplies the remaining mixed refrigerant after the refrigerant oil has been extracted to the discharge side transport unit (12).

8. The extraction apparatus according to claim 5, wherein the extraction apparatus (20) comprises: a refrigerant separation unit (26) for separating the refrigerant from the remaining mixed refrigerant after the refrigerant oil has been extracted; a compression unit side supply unit (29, 30) for supplying the extracted refrigerant oil together with the refrigerant separated in the refrigerant separation unit to the suction port side of the compression unit; and a transport unit side supply unit (27) for supplying the remaining mixed refrigerant separated in the refrigerant separation unit to the discharge side transport unit.

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