WO2004038299A1 - Dispositif d'enrichissement de gaz, dispositif de production de pression differentielle approprie et conditionneur d'air - Google Patents

Dispositif d'enrichissement de gaz, dispositif de production de pression differentielle approprie et conditionneur d'air Download PDF

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Publication number
WO2004038299A1
WO2004038299A1 PCT/JP2003/011238 JP0311238W WO2004038299A1 WO 2004038299 A1 WO2004038299 A1 WO 2004038299A1 JP 0311238 W JP0311238 W JP 0311238W WO 2004038299 A1 WO2004038299 A1 WO 2004038299A1
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WO
WIPO (PCT)
Prior art keywords
gas
opening
closing
gas enrichment
enrichment
Prior art date
Application number
PCT/JP2003/011238
Other languages
English (en)
Japanese (ja)
Inventor
Yoshikazu Nishihara
Ikuo Akamine
Yasuhiro Nakamura
Noriya Asada
Atsushi Takeuchi
Hirozumi Ito
Shinichi Sato
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to EP03809425A priority Critical patent/EP1571400A4/fr
Publication of WO2004038299A1 publication Critical patent/WO2004038299A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46—Component arrangements in separate outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/60—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by adding oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/1435—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification comprising semi-permeable membrane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air

Definitions

  • the present invention relates to a gas enrichment device for increasing a predetermined gas concentration in air relatively to other gases, a differential pressure generating device used therefor, and an air conditioner using the same.
  • oxygen-enriching equipment and nitrogen-enriching equipment have been used as medical enrichment devices to selectively increase the concentration of specific gases such as oxygen and nitrogen using selective gas permeable membranes and adsorbents such as the PSA method. It is used in equipment such as air conditioners, air conditioners, and air purifiers.
  • an oxygen enrichment means is installed in the outdoor unit of the separation type air conditioner, oxygen-enriched air is sent to the indoor unit via a delivery pipe, and discharged to the indoor side to be air-conditioned.
  • An example in which the oxygen concentration in a room, which is a space, is improved and used for the comfort of the occupants is disclosed in Japanese Patent Application Laid-Open No. 5-11132 / 27 ⁇ Japanese Patent Application Laid-Open No. 200-399569. It has been disclosed.
  • the oxygen-enriched membrane separates nitrogen, which accounts for the majority of air components, from oxygen, although it has the property of transmitting water preferentially, it also has the characteristic of transmitting moisture in the air at the same time.
  • the air on the secondary side after passing through the oxygen-enriched membrane is relatively moist relative to the air on the primary side entering the oxygen-enriched membrane by the amount of nitrogen separated.
  • the degree increases.
  • the dew point rises compared to the air on the primary side, and condensed water is often generated in the delivery pipe on the secondary side after passing through the oxygen-enriched membrane.
  • the above-described conventional technology has the following problems.
  • dew condensation water freezes inside the transportation route and the gas
  • the gas flow in the transport route will pulsate, generating abnormal noise, and bursting sounds such as bursting of water droplets. Therefore, there is a problem that those sounds are propagated to the room where the user lives and give the user discomfort.
  • the present invention has been made in view of such a problem, and minimizes the generation of dew condensation water in a gas-enriched gas transport path of a gas-enriched device.
  • Gas enrichment devices and differential pressure generators that can stably operate pumps, etc. and prevent freezing of dew condensation water in the transportation route even when the outside air temperature is low, secure the flow rate inside the transportation route, and
  • the purpose is to provide an air conditioner using a refrigeration system. Disclosure of the invention
  • the gas enrichment device includes at least gas enrichment means, differential pressure generation means for generating a differential pressure in the gas enrichment means, and gas enrichment by passing the first gas through the gas enrichment means.
  • An air supply passage for supplying the second gas, and a flow path opening / closing means for supplying a third gas having a lower relative humidity than the second gas to the air supply passage are provided.
  • FIG. 1 is a perspective view showing a gas enrichment device according to Embodiment 1 of the present invention.
  • FIG. 2 is a diagram showing control specifications of a flow path on-off valve of the gas enrichment device.
  • Fig. 3 is a time chart showing the operation of the flow path on-off valve and the pressure reducing pump of the gas enrichment device.
  • FIG. 4 is a perspective view showing a gas enrichment device according to Embodiment 2 of the present invention.
  • FIG. 5 is a perspective view showing a gas enrichment device according to Embodiment 3 of the present invention.
  • FIG. 6 is a time chart showing the operation of the flow path on-off valve and the pressure reducing pump in Embodiment 4 of the present invention.
  • FIG. 7 is a diagram showing control specifications of a flow path on-off valve according to Embodiment 5 of the present invention.
  • FIG. 8 is a time chart showing the operation of the flow path on-off valve and the pressure reducing pump according to the fifth embodiment of the present invention.
  • FIG. 9 is a perspective view showing a configuration of an air conditioner according to Embodiment 6 of the present invention.
  • FIG. 10 is a perspective view showing a configuration of an air conditioner according to Embodiment 7 of the present invention.
  • FIG. 1 is a perspective view showing a gas enrichment device according to Embodiment 1 of the present invention.
  • Embodiment 1 describes a case where a pressure reducing pump is used as a differential pressure generating means for generating a differential pressure in the gas enrichment means.
  • the gas enrichment device 30 includes an oxygen enrichment unit 1 serving as a gas enrichment means, a pressure reducing pump 2 serving as a differential pressure generating means, an air supply passage 3, and a flow passage opening / closing valve 4 serving as a flow passage opening / closing means. It is composed of a temperature sensor 5, which is a temperature detecting means, and a control means 6, and the whole is housed in a housing 7. A discharge main pipe 8 is connected to the discharge side of the pressure reducing pump 2 to use gas-enriched gas. Supplies to the places where they will be.
  • the flow path on-off valve 4 is connected to the air supply passage 3 by a branch pipe 9 branched from the air supply passage 3, and the flow resistance member 10 and the introduction pipe 11 are connected.
  • the oxygen-enriched unit 1 may be a permselective membrane that selectively permeates a specific gas, or may be a selective adsorption membrane that adsorbs a specific gas.
  • the atmosphere 12 as the first gas to be enriched is oxygen-enriched by suction of the decompression pump 2 provided at the outlet side of the oxygen enrichment unit 1.
  • the oxygen enters unit 1 and oxygen is selectively permeated by a permselective membrane or the like in oxygen-enriched unit 1, and enters a gas supply passage 3 as a second gas having a high oxygen concentration.
  • the second gas having a high oxygen concentration is discharged from the air supply passage 3 to the discharge main pipe 8 via the pressure reducing pump 2.
  • a fan (not shown) for scavenging the air having a high nitrogen concentration retained by the oxygen enrichment unit 1 is arranged. It is possible to operate in conjunction with 30 operation. Further, for example, when the gas enrichment device 30 is used in an air conditioner, the arrangement of the oxygen enrichment unit 1 can be arranged in a blowing circuit of an outdoor unit and shared with an outdoor fan.
  • an on-off valve such as an electromagnetic two-way valve
  • a capillary tube or the like can be used as the flow resistance member 10. Opening / closing control of the flow path opening / closing valve 4 is controlled based on a temperature detected by a temperature sensor 5 serving as a temperature detecting means, based on a signal of the control means 6. Further, when the gas enrichment device 30 is used by being connected to other devices, the opening and closing of the flow path on-off valve 4 may be controlled by an external control signal from those devices. It is possible.
  • the flow path on-off valve 4 is ON—only the opening and closing operation of 0 FF, and the degree of opening and closing is variable Then, it is possible to control the opening and closing so as to control the flow rate of the gas passing through the opening and closing valve.
  • the temperature sensor 5 is provided at the atmospheric temperature where the gas enrichment device 30 is installed, the temperature in the vicinity of the oxygen enrichment unit 1, or the air supply passage 3 and the discharge main pipe 8 constituting the gas enrichment device 30. It is possible to detect any temperature such as pipe temperature.
  • FIG. 1 the operation of enriching the atmosphere with oxygen by placing the gas enrichment device 30 having the above configuration in the outside air will be described with reference to FIGS. 1, 2, and 3.
  • FIG. 1 the operation of enriching the atmosphere with oxygen by placing the gas enrichment device 30 having the above configuration in the outside air will be described with reference to FIGS. 1, 2, and 3.
  • the pressure reducing pump 2 When the pressure reducing pump 2 is operated, the outside air 1 2 as the first gas is sucked into the oxygen-enriched unit 1, and the air having an increased oxygen concentration after passing through the oxygen-enriched unit 1 is supplied to the air supply passage 3. , And is sucked into the decompression pump 2 and further sent out via the discharge main pipe 6.
  • FIGS. Fig. 2 is a diagram showing the control specifications of the flow path on-off valve of the gas enrichment device in Embodiment 1
  • Fig. 3 is a time chart showing the operation of the flow path on-off valve and the pressure reducing pump in the same control specification. is there.
  • the flow path on-off valve 4 is in a closed state at the start of operation.
  • the control means 6 controls the opening / closing operation of the flow path opening / closing valve 4 based on the outside air temperature detected by the temperature sensor 5.
  • Fig. 2 is a diagram showing the control specifications of the flow path on-off valve of the gas enrichment device in Embodiment 1
  • Fig. 3 is a time chart showing the operation of the flow path on-off valve and the pressure reducing pump in the same control specification. is there.
  • the flow path on-off valve 4 is in a closed state at the start of operation.
  • the control means 6 controls the opening / closing operation of the flow path opening / closing valve 4 based on the outside air temperature detected
  • the detected outside air temperature is higher in the upper part and lower in the lower part.
  • the flow path on-off valve 4 is in a closed state.
  • the relative humidity of the outside air also increases. Humidity further rises.
  • condensation easily forms in the air supply passage 3 and the discharge main pipe 8, and freezing of condensation water, etc.
  • a phenomenon such as blockage of these piping paths occurs.
  • the flow path opening / closing valve 4 when the flow path opening / closing valve 4 is opened, at least the outside air 13 which is gas-enriched and becomes a third gas having a lower relative humidity than the gas passing through the air supply passage 3 is introduced through the introduction pipe 11. It is introduced into the air supply passage 3. For this reason, the gas delivered to the discharge main pipe 8 changes in a direction of mitigating the dew condensation state by mixing with the outside air having a relatively low humidity.
  • the configuration is such that the flow resistance when passing through the introduction pipe 11 is smaller than that when passing through the oxygen-enriched unit 1. Therefore, when the flow path on-off valve 4 is opened, the outside air is preferentially introduced not from the oxygen-enriched unit 1 side but from the inlet pipe 11 side.
  • the flow resistance of the introduction pipe 11, the flow resistance member 10, the flow path opening / closing valve 4, and the branch pipe 9 smaller than the flow resistance of the oxygen-enriched unit 1, a higher flow resistance is obtained.
  • a flow of outside air can be introduced. Therefore, the dew water remaining in the discharge main pipe 8 and the like can be discharged to the outside by increasing the wind speed of the pipe, and the evaporation of the dew water can be promoted. Furthermore, even if condensed water is frozen in the discharge main pipe 8 or the like, these high-speed airflows can eliminate the water outside.
  • a flow resistance member 10 may be provided so that the flow rate becomes optimum.
  • a hysteresis is provided at a predetermined temperature at which the flow opening / closing valve 4 is opened and closed when the outside air temperature T rises again. That is, when the outside air temperature decreases, the flow path on-off valve 4 is opened.
  • the open / close valve does not return to the closed state at point c in the process of increasing the outside air temperature at the specified outside air temperature T, and then closes when the outside air temperature ⁇ rises to the state at point d. It is controlled to return.
  • T 1 T 2 may be set.However, by setting the hysteresis, the flow path on-off valve 4 frequently opens and closes near T 1, which impairs the reliability of the valve and frequent switching noises make the user uncomfortable You will not feel it.
  • the detected temperature based on the outside air temperature is compared with a plurality of set outside air temperatures, and as the opening / closing operation of the flow path on-off valve 4, the opening time is increased as the outside air temperature becomes lower, thereby preventing dew condensation water in these paths from freezing. It is also possible to aim.
  • a flow resistance member 10 is provided in the introduction pipe 11. If the flow resistance member 10 is not provided, when the opening control of the flow path opening / closing valve 4 is performed, a large abnormal noise is generated due to a rapid suction pressure fluctuation of the pressure reducing pump 2. By connecting 10, it is possible to reduce pressure fluctuation and reduce such abnormal noise.
  • the flow resistance member 10 can also restrict the flow rate, and is configured to have a flow resistance smaller than that of the oxygen-enriched unit 1, thereby being effective in eliminating dew condensation water and the like. It becomes.
  • the temperature detected by the temperature sensor 5 is the outside air temperature.However, by using the temperature of the passage such as the air supply passage 3 and the discharge main pipe 8 or the outside air temperature in the vicinity thereof, dew condensation water is generated in those passages. And freezing of dew condensation water can be reliably performed.
  • a gas enrichment device can be provided in an air conditioner or the like, and switching between the introduction of fresh air into the room and the supply of oxygen-enriched air can be performed. It is also possible to have a ventilation function.
  • the temperature sensor 5 included in the air conditioner itself can be used in common as the temperature sensor 5, and the control means 6 It is needless to say that the air conditioner may be installed in the control device of the outdoor unit of the air conditioner.
  • FIG. 4 is a perspective view showing a gas enrichment device according to Embodiment 2 of the present invention.
  • a branch pipe 9 is provided in the air supply passage 3, but in the present embodiment, as shown in FIG. 4, a gas introduction section is provided directly in the suction side flow path of the pressure reducing pump 2 itself.
  • a branch pipe 20 is connected. Further, the configuration is such that a flow path on-off valve 4 and the like are connected to the branch pipe 20, and other configurations are common to the first embodiment.
  • the branch pipe 20 on the side of the decompression pump 2 and processing the same, the air supply passage 3 from the oxygen enrichment unit 1 to the decompression pump 2 There is no need to perform branch processing.
  • units such as the flow path on-off valve 4 and the branch pipe 20 can be assembled in advance, and can be produced as a decompression pump 2 having a dew condensation water suppression function. .
  • the operation of the flow path on-off valve 4 is controlled by detecting the outside air temperature.However, for example, the load current applied to the pressure reducing pump 2 is detected, and the discharge main pipe 8 due to the generation or freezing of dew condensation water is detected. The operation may be performed by judging the passage blockage.
  • the branch pipe 9 is provided in the air supply passage 3, and in the second embodiment, the branch pipe 20 is directly connected to the suction-side flow path of the pressure reducing pump 2.
  • a configuration provided directly in the oxygen-enriched unit 1 is also possible.
  • FIG. 5 is a perspective view showing a gas enrichment device according to Embodiment 3 of the present invention.
  • a pressure reducing pump which is a pressure reducing device, is used as a differential pressure generating means for generating a differential pressure in the oxygen enrichment unit 1 serving as a gas enriching means.
  • a pressurizing device is used instead of the pressure reducing device. That is, as shown in FIG. 5, the outside air 12 as the first gas is pressurized by a pressurizing device, for example, Yuichi Pofan 40, and the oxygen-enriched gas as the gas enrichment means is passed through the air supply path 41. Supply unit 42.
  • the gas having a high oxygen concentration which is the gas of the younger brother 2 discharged from the oxygen enrichment unit 42, is discharged to the air supply passage 43.
  • the oxygen enrichment unit 42 it is possible to use a selective gas permeable membrane or an adsorbent such as a PSA method as the oxygen enrichment unit 42.
  • a selective gas permeable membrane or an adsorbent such as a PSA method
  • a flow path opening / closing valve 44 is provided in parallel with the oxygen enrichment unit 42, and a bypass circuit 45 connected to the air supply path 41 and the air supply path 43 is provided.
  • a heating heater (not shown) may be provided in the bypass circuit 45 to heat the gas passing through the bypass circuit 45.
  • the opening and closing of the flow path on-off valve 44 is controlled by the control means 6 based on the temperature detected by the temperature sensor 5 according to the first embodiment. Same as 1 and 2.
  • the third embodiment it is not necessary to suck a large amount of gas into the suction side of the pressure reducing pump as in the first and second embodiments, and the generation of abnormal noise caused by the suction is suppressed.
  • the pressure difference can be generated without being affected by the outside air condition, that is, the atmospheric pressure.
  • the method of introducing the second gas into the air supply passage or the discharge main pipe is not limited to the above-described method.
  • an outlet is provided in the air supply passage or the discharge main pipe, and the second action is performed by the outlet action.
  • a method of sucking and introducing the gas is also conceivable.
  • the flow path on-off valve described in Embodiments 1 to 3 is described as a method of electrically controlling the opening and closing of the flow path on-off valve. When the valve member reaches a predetermined temperature, the valve member can be opened and closed by deformation of the shape memory alloy.
  • FIG. 6 is a time chart showing the operation of the flow path on-off valve and the pressure reducing pump in the fourth embodiment.
  • the configuration of the gas enrichment device is the same as the configuration described in Embodiment 1, and the description is omitted.
  • the opening / closing operation of the flow path opening / closing valve 4 is intermittently operated, and the relative operation generated through the oxygen enrichment unit 1 is performed. Prior to condensation of humid air, a large amount of low relative humidity dry air is introduced to prevent freezing.
  • the outside air referred to here is the air of the atmosphere, and may be the outside air or the surrounding air where the decompression pump is arranged.
  • the detected temperature based on the outside air temperature is compared with a plurality of set outside air temperatures, and the operation rate of the opening and closing operation of the flow path on-off valve 4 is increased as the outside air temperature becomes lower, thereby improving the effect of preventing dew condensation water in the pipeline from freezing. It is also possible to plan.
  • the operating rate of the opening / closing operation is a ratio of the opening operation time during the intermittent operation time.
  • a fifth embodiment relating to the opening / closing operation of the flow path opening / closing valve will be described with reference to FIGS.
  • the configuration of the gas enrichment device is the same as the configuration described in the first embodiment, and the description is omitted.
  • Fig. 7 is a diagram showing the control specifications of the flow path on-off valve 4 using a comparison between the outside air temperature detected by the temperature sensor 5 and the set temperature
  • Fig. 8 shows the flow path based on the outside air temperature detected by the temperature sensor 5.
  • 6 is a time chart showing the operation of the on-off valve 4 and the pressure reducing pump 2. '
  • the dew water of the gas having a high relative humidity formed through the oxygen-enriched unit 1 freezes and blocks the air passage.
  • the temperature sensor 5 detects a low outside air temperature
  • the opening / closing operation of the flow passage opening / closing valve 4 is intermittently operated, and the air flow having a high relative humidity passing through the gas enrichment unit 2 is condensed before dew condensation. Introduce dry air with much air to prevent freezing.
  • the freezing in the flow passage is performed by increasing the operation rate of the intermittent operation due to the opening / closing operation of the flow passage opening / closing valve 4.
  • the flow path on-off valve 4 when the outside air temperature falls below ⁇ 3, the flow path on-off valve 4 performs the opening operation (ON operation) of the flow path on-off valve 4 for ta time, and thereafter tb. Opening / closing A that performs time closing operation (OFF operation) Drive.
  • T4 When the outside air temperature becomes higher than T4, the flow path on-off valve 4 is closed, and a valve closing operation without intermittent opening / closing operation is performed.
  • the opening operation (ON operation) of the flow path on-off valve 4 is performed for tc time, and then the closing operation (OFF operation) of the flow path on-off valve 4 is performed for td time. Open / close B operation.
  • the relationship between the time of ta and tc, which is the opening operation time of the flow path opening / closing valve 4, is ta ⁇ tc, and tc> td.
  • Embodiment 6 an air conditioner equipped with the gas enrichment device according to Embodiments 1 to 5 of the present invention will be described with reference to an example of a separate air conditioner including an outdoor unit and an indoor unit. explain.
  • FIG. 9 is a perspective view showing a configuration of an air conditioner including a gas enrichment device according to Embodiment 6 of the present invention.
  • the air conditioner includes an indoor unit 50 and an outdoor unit 51, and is connected by a connection pipe (not shown) so that the refrigerant gas circulates.
  • An indoor fan 52 is arranged in the indoor unit 50.
  • a compressor 53, an outdoor heat exchanger 54, and an outdoor fan 55 are arranged in the outdoor unit 51, and an oxygen enrichment unit 56 as a gas enrichment unit is separated from one room by an outdoor unit. It is placed on the top of G51.
  • the oxygen enrichment device 56 is the gas enrichment device 30 described in the first embodiment, and the air, which is the second gas having a high oxygen concentration, which is gas-enriched through the discharge main pipe 8, is supplied to the indoor unit.
  • Discharge port 57 is provided.
  • the discharge port 57 is arranged facing the air blow circuit in the housing of the indoor unit 50, the operation of the indoor fan 52 blows out the air blown into the indoor space from the discharge port 57.
  • the added oxygen-enriched air is added and sent out from the outlet 58 to the space to be conditioned. Therefore, the indoor fan 52 is also a diffusion means for diffusing the gas-enriched second gas.
  • the gas enrichment device described in Embodiments 1 to 5 and the differential pressure generating device or the flow passage opening / closing valve are used as the oxygen enrichment device 56.
  • the oxygen-enriching device 56 sends high-oxygen-concentrated air into the room to be conditioned, for example, when the relative humidity of the outside air itself in summer is high, or when the outside air in winter is low, the discharge main pipe 8 is used. Condensation water is more likely to form during the winter, especially in winter. However, according to the present embodiment, generation of dew condensation water and freezing of dew condensation water are caused by intermittently or in large quantities introducing outside air having a low relative humidity into oxygen-enriched air having a high relative humidity. Can be prevented. Therefore, air with a high oxygen concentration can be supplied to the air-conditioned space stably and reliably.
  • FIG. 10 is a perspective view showing a configuration of an air conditioner including a gas enrichment device according to Embodiment 7 of the present invention.
  • the main configuration of the air conditioner is the same as that of the air conditioner shown in Embodiment 6, and the same reference numerals are given.
  • the outdoor unit 51 includes a compressor room 60 in which a compressor 53, a four-way valve (not shown) and the like are arranged, an oxygen enrichment unit 61 and a decompression pump 6.
  • a compressor room 60 in which a compressor 53, a four-way valve (not shown) and the like are arranged, an oxygen enrichment unit 61 and a decompression pump 6.
  • an electrical component room 64 in which an oxygen enrichment device composed of 2 and the like and a control device 63 for controlling the air conditioner are arranged, and these together constitute a machine room.
  • a heat exchanger room 65 including an outdoor fan 55 and an outdoor heat exchanger 54 is provided.
  • the indoor unit 50 has an indoor fan 52 and a discharge port 57 of an oxygen enrichment device 56.
  • the oxygen enrichment device includes an oxygen-enriched unit 61, which is a selective gas permeable membrane, a decompression pump 62, which depressurizes the secondary side of the oxygen-enriched unit 61, and an oxygen supply main pipe, which connects between them to allow ventilation.
  • a three-way valve 68 connected to an air introduction pipe 67 in the middle of the oxygen supply main pipe 66 and a discharge main pipe 69 connected to the discharge side of the pressure reducing pump 62 are provided.
  • an air inlet 70 at the end of the air inlet pipe 67 extends into the compressor room 60.
  • the blower pipe 71 is a pipe connecting the discharge main pipe 69 and the discharge port 57, and is led out of the outdoor unit 51 and introduced into the indoor unit 50.
  • a fan (not shown) for scavenging the retained nitrogen-enriched air is installed, and linked to the operation of the oxygen enrichment device. It is good to operate it.
  • oxygen enrichment unit The primary side of the unit 61 is placed in the ventilation circuit of the heat exchanger room 65 having the outdoor fan 55 of the outdoor unit 51, and the primary side of the oxygen-enriched unit 61 is blown by the ventilation of the outdoor fan 55. The nitrogen-enriched air on the side is scavenged.
  • the flow resistance in the state where the three-way valve 68 is open indicates that the three-way valve 68 is closed ( This is a state in which the flow resistance in the oxygen supply main pipe 66 on the side of the oxygen enrichment unit 61 and the oxygen supply main pipe 66 on the side of the decompression pump 62 are in communication with each other is reduced. Therefore, if the three-way valve 68 is opened, the air is preferentially introduced not through the oxygen-enriched unit 61 but through the air inlet 70 of the air inlet pipe 67.
  • the resistance is small, a larger amount of air can be introduced than when passing through the oxygen-enriched unit 61, and the condensed water remaining in the discharge main pipe 69, etc., improves the wind speed of the pipeline
  • the ice speed can be pushed out to the discharge port 57 by the wind speed.
  • Embodiment 7 shows an example in which the air inlet 70 is provided in the compressor chamber 60.
  • the temperature in the compressor room 60 is higher than the external environment temperature of the outdoor unit 51 due to the heat radiation of the compressor 53 and the like. Therefore, the evaporation of dew condensation water is promoted, and the discharge main pipe 69 and the blower pipe 71 are dried.
  • the three-way valve 68 is controlled intermittently and appropriately, the generation of condensation water and the evaporation are repeated, so that a large amount of condensation water does not accumulate, and control can be performed so that condensation does not occur.
  • the air inlet 70 is provided in the indoor space.
  • the temperature (humidity) of the air (air) in the indoor space is stable, and it has less influence on the indoor environment than when air is introduced from the outdoor space.
  • the blower pipe 71 is a double pipe, the outside of which is connected to the air introduction pipe 67, and the other end on the outer circumference side is opened when the blower pipe 71 enters the indoor space. It can be easily realized.
  • the air inlet 70 can be provided in the heat exchanger room 65.
  • the gas enrichment device is applied to a separation type air conditioner used for air conditioning of a living space has been described, but for example, the gas enrichment device may be used for a vehicle air conditioner or an integrated air conditioner. Good.
  • the gas enrichment device described in the present embodiment has the same effect when applied to an air purifier, a medical oxygen enrichment device, a portable oxygen enrichment device, a combustion oxygen enrichment device, and the like. Can be expressed.
  • the same effect can be exhibited even when applied to a nitrogen enrichment device used for preserving food freshness and the like.
  • Industrial applicability As described above, according to the gas enrichment device of the present invention, it is possible to prevent the gas that has been enriched in gas and has increased relative humidity from being condensed in the air supply passage, discharge the condensed condensed water, or By re-evaporating, it is possible to suppress the accumulation of dewed water in the air supply passage and the generation of noise, and to realize a stable operation of the gas enrichment device.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

L'invention concerne un dispositif d'enrichissement de gaz, comportant une unité d'enrichissement de gaz et un dispositif de production de pression différentielle, qui sont interconnectés. Le dispositif de production de pression permet d'évacuer l'air humide mis en écoulement à travers l'unité d'enrichissement de gaz et d'éviter que l'air ne soit réfrigéré. Ledit dispositif d'enrichissement de gaz comprend au moins un moyen d'enrichissement de gaz (1), un moyen de production de pression différentielle (2) permettant la production de pression différentielle par le moyen d'enrichissement de gaz (1), un passage d'alimentation en gaz(3) pour alimenter un deuxième gaz enrichi en gaz, en permettant au premier gaz de traverser le moyen d'enrichissement en gaz (1), ainsi qu'un moyen d'ouverture/fermeture du passage d'écoulement (4) pour alimenter un troisième gaz présentant une humidité relativement moindre que celle du deuxième gaz en direction du passage d'alimentation en gaz (3).
PCT/JP2003/011238 2002-10-24 2003-09-03 Dispositif d'enrichissement de gaz, dispositif de production de pression differentielle approprie et conditionneur d'air WO2004038299A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03809425A EP1571400A4 (fr) 2002-10-24 2003-09-03 Dispositif d'enrichissement de gaz, dispositif de production de pression differentielle approprie et conditionneur d'air

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2002309327 2002-10-24
JP2002-309327 2002-10-24
JP2002-318181 2002-10-31
JP2002-318175 2002-10-31
JP2002318175 2002-10-31
JP2002318181 2002-10-31

Publications (1)

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WO2004038299A1 true WO2004038299A1 (fr) 2004-05-06

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Country Link
EP (1) EP1571400A4 (fr)
KR (1) KR100701528B1 (fr)
CN (1) CN1271376C (fr)
MY (1) MY137642A (fr)
WO (1) WO2004038299A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63218232A (ja) 1987-03-04 1988-09-12 Kiyuubitsuku Eng:Kk 空気調節装置
JPS6475851A (en) 1987-09-17 1989-03-22 Hitachi Ltd Air conditioner
US5129921A (en) * 1991-05-30 1992-07-14 Membrane Technology & Research, Inc. Membrane gas separation process and apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002039569A (ja) * 2000-07-24 2002-02-06 Matsushita Electric Ind Co Ltd 空気調和機
KR100698171B1 (ko) * 2000-12-16 2007-03-22 엘지전자 주식회사 공기 조화기

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63218232A (ja) 1987-03-04 1988-09-12 Kiyuubitsuku Eng:Kk 空気調節装置
JPS6475851A (en) 1987-09-17 1989-03-22 Hitachi Ltd Air conditioner
US5129921A (en) * 1991-05-30 1992-07-14 Membrane Technology & Research, Inc. Membrane gas separation process and apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1571400A4

Also Published As

Publication number Publication date
MY137642A (en) 2009-02-27
EP1571400A4 (fr) 2008-05-07
EP1571400A1 (fr) 2005-09-07
CN1499147A (zh) 2004-05-26
KR20040036538A (ko) 2004-04-30
CN1271376C (zh) 2006-08-23
KR100701528B1 (ko) 2007-03-29

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