US20160281999A1 - Water collecting system, humidification system, and air conditioning system - Google Patents

Water collecting system, humidification system, and air conditioning system Download PDF

Info

Publication number
US20160281999A1
US20160281999A1 US15/063,917 US201615063917A US2016281999A1 US 20160281999 A1 US20160281999 A1 US 20160281999A1 US 201615063917 A US201615063917 A US 201615063917A US 2016281999 A1 US2016281999 A1 US 2016281999A1
Authority
US
United States
Prior art keywords
water
unit
gas
water collecting
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/063,917
Other languages
English (en)
Inventor
Ryosuke YAGI
Seiichi Suenaga
Norihiro Tomimatsu
Takayuki Fukasawa
Koichi Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Assigned to KABUSHIKI KAISHA TOSHIBA reassignment KABUSHIKI KAISHA TOSHIBA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUKASAWA, TAKAYUKI, HARADA, KOICHI, SUENAGA, SEIICHI, TOMIMATSU, NORIHIRO, YAGI, RYOSUKE
Publication of US20160281999A1 publication Critical patent/US20160281999A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F24F3/1405—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 in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
    • 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
    • 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
    • F24F2003/144—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 by dehumidification only

Definitions

  • Embodiments described herein relate to a water collecting system, a humidification system, and an air conditioning system.
  • a humidity control module for controlling humidity in a space is known to improve comfort at home and in an office space.
  • the humidity control module includes a dehumidifying film module including a dehumidifying film, an adsorption unit including an adsorbent, and an air supply unit for supplying air to the dehumidifying film module and the adsorption unit.
  • a method is proposed in which, by supplying air to be dehumidified on one face of the dehumidifying film and supplying decompressed air on another face, moisture included in the air to be dehumidified is discharged to the decompressed air side through the dehumidifying film, and the dehumidified air is provided.
  • a steam separator having a polymer film such as fluororesin and a decompressing pump steam separated and collected from air to be discharged from inside to outside of a room is directly supplied to air to be supplied from outside to inside, to humidify the inside of the room.
  • FIG. 1 is a schematic view of a water collecting system according to embodiments described herein;
  • FIG. 2 is a chart of a water collecting cycle according to the embodiments.
  • FIG. 3 is a schematic view of a humidification system according to the embodiments.
  • FIG. 4 is a chart of a humidification cycle according to the embodiments.
  • FIG. 5 is a schematic view of an air conditioning system according to the embodiments.
  • FIG. 6 is a chart of an air conditioning cycle according to the embodiments.
  • a water collecting system of an embodiment has a water supplying unit with a water-permeable membrane, a first chamber and a second chamber separated from the first chamber by the water-permeable membrane, a vacuum unit, a water collecting unit collecting liquid water, a first switching valve, a cooling unit cooling the water collecting unit; and an air blowing unit sending first gas to the first chamber.
  • the second chamber, the vacuum unit, the water collecting unit, and the first switching valve comprise a first loop circuit in which second gas flow.
  • the vacuum unit decompresses the second gas flowing in the first loop circuit and reduces a pressure in the second gas in comparison with a pressure in the first gas.
  • the cooling unit collects the liquid water by cooling the second gas passing through the water collecting unit and condensing gaseous water included in the second gas.
  • a humidification system of an embodiment has a water supplying unit with a water-permeable membrane, a first chamber and a second chamber separated from the first chamber by the water permeable membrane, a vacuum unit, a water collecting unit collecting liquid water, a first switching valve, a cooling unit cooling the water collecting unit, an air blowing unit sending first gas to the first chamber, a liquid water vaporization unit vaporizing the liquid water, and a liquid feed unit feeding the liquid water collected by the water collecting unit to the liquid water vaporization unit.
  • the second chamber, the vacuum unit, the water collecting unit, and the first switching valve comprise a first loop circuit in which second gas flow.
  • the vacuum unit decompresses the second gas flowing in the first loop circuit and reduces a pressure in the second gas in comparison with a pressure in the first gas.
  • the cooling unit collects liquid water by cooling cools the second gas passing through the water collecting unit and condensing gaseous water included in the second gas.
  • the liquid water vaporization unit vaporizes the liquid water.
  • An air conditioning system of an embodiment has a water supplying with a water-permeable membrane, a first chamber and a second chamber separated from the first chamber by the water permeable membrane, a vacuum unit, a water collecting unit collecting liquid water, a first switching valve, an air blowing unit sending first gas to the first chamber, a liquid water vaporization unit vaporizing the liquid water, a liquid feed unit feeding the liquid water collected by the water collecting unit to the liquid water vaporization unit, and a heat pump cycle including a cooling unit.
  • the second chamber, the vacuum unit, the water collecting unit, and the first switching valve comprise a first loop circuit in which second gas flow.
  • the vacuum unit decompresses the second gas flowing in the first loop circuit and reduces a pressure in the second gas in comparison with a pressure in the first gas.
  • the cooling unit is cooled by heat absorption by the refrigerant in the heat pump cycle.
  • the cooled cooling unit cools the water collecting unit and the liquid water is collected, Humidification by vaporizing the liquid water by the liquid water vaporization unit and air conditioning operation by the heat pump cycle are performed.
  • a first embodiment relates to a water collecting system and a water collecting method.
  • a water collecting system of an embodiment has a water supplying unit with a water-permeable membrane, a first chamber and a second chamber separated from the first chamber by the permeable membrane, a vacuum unit, a water collecting unit collecting liquid water, a first switching valve, a cooling unit cooling the water collecting unit, and an air blowing unit sending first gas to the first chamber.
  • the second chamber, the vacuum unit, the water collecting unit, and the first switching valve comprise a first loop circuit in which second gas flow.
  • the vacuum unit decompresses the second gas flowing in the first loop circuit and reduces a pressure in the second gas in comparison with a pressure in the first gas.
  • the cooling unit collects the liquid water by cooling the second gas passing through the water collecting unit and condensing gaseous water included in the second gas.
  • FIG. 1 illustrates a schematic view of a water collecting (water collecting device) system 100 according to the first embodiment.
  • a water collecting system 100 illustrated in FIG. 1 includes a water supplying unit with a water-permeable membrane 3 , a first chamber 1 and a second chamber 2 , a decompressing pump 5 which is a vacuum unit, a water collecting unit 6 , a first switching valve 8 , a cooling unit 7 , and an air blowing unit 4 .
  • First gas flow in the first chamber 1
  • second gas flow in the second chamber 2 .
  • Liquid water is collected by the water collecting unit 6 .
  • control unit C Operation of the air blowing unit 4 , the decompressing pump 5 , the cooling unit 7 , the first switching valve 8 , and the like are preferably controlled by a control unit C.
  • the control unit C is connected to the decompressing pump 5 and the like by a wire (not illustrated). It is preferable for control unit C has a mechanical switch and an electronic circuit.
  • the second chamber 2 , the decompressing pump 5 , the water collecting unit 6 , and the first switching valve 8 comprises a first loop circuit in which the second gas flow.
  • the first loop circuit forms a closed circuit in which the second gas circulate.
  • Lines L 1 to L 5 are pipes in which the second gas flow.
  • the water collecting system 100 can be used, for example, as a system for supplying liquid water to a humidity control device.
  • the water collecting system 100 may be used as a device for performing a water electrolysis reaction, such that the water collecting unit 6 of the water collecting system 100 may be used as a water supply source of water consumed in the water electrolysis reaction.
  • the water collecting system according to the first embodiment may be provided inside or outside of a room, and it is preferably provided outside.
  • the water supplying unit includes the first chamber 1 , the second chamber 2 , and the water-permeable membrane 3 .
  • the first chamber 1 is a space in which a first gas flow.
  • the first gas is gas such as the atmosphere including water (gaseous water). When the first gas passes through the first chamber 1 , a part of gaseous water included in the first gas moves, through the water-permeable membrane 3 , to the second chamber 2 on the first loop circuit side decompressed by the decompressing pump 5 .
  • the second chamber 2 is included in the first loop circuit and disposed between the decompressing pump 5 and the water collecting unit 6 .
  • the second chamber 2 is separated from the first chamber 1 by the permeable membrane 3 .
  • the second chamber 2 and the decompressing pump 5 are connected by the line L 1 .
  • the second chamber 2 and the water collecting unit 6 are connected by the line L 4 .
  • the second chamber 2 is a region in which gaseous water moved from the first chamber 1 through the water-permeable membrane 3 is mixed with a second gas. An amount of steam in the second gas including the gaseous water moved from the first chamber 1 is increased.
  • the water-permeable membrane 3 is a film separating the first chamber 1 and the second chamber 2 .
  • the water-permeable membrane 3 is a membrane having high steam permeability in comparison with permeability with respect to nitrogen and oxygen, and, for example, at least one of a solid polymer membrane (such as Nafion (trademark)), a membrane including acrylic resin, a membrane formed of acrylic resin, zeolite membrane and a silica membrane can be used.
  • the silica membrane is a resin membrane including hydropolysilazane as a base unit, and more specifically a membrane formed of perhydropolysilazane.
  • a membrane is defined to have steam permeability in the case where a permeation amount of water passing through the membrane is 100 g/hour/m 2 or more, when the water-permeable membrane 3 separates saturated air which is at 25° C. in an atmospheric pressure (1 atm) and in which a relative humidity is 90% or more and saturated air which is at 25° C. in an atmospheric pressure (1 atm) and in which a relative humidity is 5%, and 100 m 3 /hour/m 2 of the saturated air which is at 25° C. and in which the relative humidity is 90% or more is supplied per unit area (m 2 ).
  • the water-permeable membrane 3 permeates water and does not permeate nitrogen, oxygen, and organic substances, and therefore, it has an effect of preventing contamination of collected water.
  • a membrane having a high selectivity to permeate only water is preferably used as the water-permeable membrane 3 .
  • the air blowing unit 4 is connected to the first chamber 1 and for feeding first gas to the first chamber 1 .
  • a blower and a fan are preferably used.
  • the air blowing unit 4 is preferably used to secure the amount of collected water in a short time even if the moisture content in the air is small.
  • the decompressing pump 5 is a vacuum unit and a device for decompressing second gas flowing in a first loop circuit.
  • the line L 1 connects an intake side of the decompressing pump 5 and the second chamber 2 . Further, the line L 2 connects an exhaust side of the decompressing pump 5 and the first switching valve 8 .
  • the decompressing pump 5 is a vacuum unit for feeding the second gas. By the decompress ing pump 5 , a pressure in the second gas becomes lower than a pressure in the first gas.
  • the water collecting unit 6 collects liquid water by moving gaseous water included in the first chamber 1 to the second gas in the second chamber 2 by decompressing the second gas by the decompressing pump 5 .
  • a diaphragm vacuum pump and a scroll vacuum pump can be used as the second gas.
  • the water collecting unit 6 is disposed between the second chamber 2 and the first switching valve 8 .
  • the line L 4 connects the water collecting unit 6 and the second chamber 2 .
  • the line L 3 connects the water collecting unit 6 and the first switching valve 8 .
  • the water collecting unit 6 cools a second gas and flocculates gaseous water included in the second gas. The gaseous water is then condensed, and liquid water (condensed water) is provided. The liquid water is then collected by the water collecting unit 6 .
  • the water collecting unit 6 is preferably a vessel for at least temporarily storing the collected liquid water.
  • the water collecting unit 6 preferably includes a gas-liquid separation unit.
  • the gas-liquid separation unit preferably prevents vaporization of liquid water and separates a region in which the collected liquid water is stored and a region in which the second gas flow.
  • the gas-liquid separation unit preferably has a function as a partition to prevent that the liquid water collected by the lines L 3 and L 4 circulate in a first loop circuit.
  • the gas-liquid separation unit for example, a unit is used in which high density liquid water is stored at a bottom to separate by using gravity.
  • the collected liquid water is preferably used for such as humidification.
  • the cooling unit 7 cools the water collecting unit 6 .
  • the water collecting unit 6 is cooled by the cooling unit 7 .
  • the second gas flowing in the water collecting unit 6 is cooled.
  • the cooling unit 7 cools the second gas and condenses gaseous water included in the second gas. Liquid water (condensed water) is collected by the water collecting unit 6 .
  • the cooling unit 7 is not limited as long as the water collecting unit 6 can be cooled to lower than an outside temperature (a temperature outside of the water collecting unit 6 , for example, an outdoor temperature), such as low temperature air, a heat exchanger, a Peltie device, or ice.
  • the water collecting unit 6 has a temperature preferably 2 to 15° C. lower than an outside temperature.
  • the cooling unit 7 is preferably thermally connected to the water collecting unit 6 .
  • the first switching valve 8 is disposed between the decompressing pump 5 and the water collecting unit 6 .
  • the first switching valve 8 is connected to an exhaust side of the decompressing pump 5 , the water collecting unit 6 , and the line L 5 which is a pipe for exhausting to the outside of a first loop circuit.
  • the line L 2 connects the first switching valve 8 and the decompressing pump 5 .
  • the line L 4 connects the first switching valve 8 and the water collecting unit 6 .
  • the first switching valve 8 switches a first fluid passage in which second gas flow from the decompressing pump 5 to the water collecting unit 6 and a second fluid circuit in which the second gas flow from the decompressing pump 5 to the line L 5 which is a pipe for exhausting to the outside of the first loop circuit.
  • the first switching valve 8 When the first switching valve 8 is switched so as to conduct the lines L 2 and L 3 , the first loop circuit is closed, and the second gas flow from the decompressing pump 5 to the water collecting unit 6 and circulate in the first loop circuit. Further, when the first switching valve 8 is switched so as to conduct the lines L 2 and L 5 , the first loop circuit is opened, the second gas sent from the decompressing pump 5 passes through the line L 5 and is exhausted to the outside of the first loop circuit, and an atmospheric pressure in the first loop circuit is decompressed. A pressure in the first loop circuit is adjusted by operating the decompressing pump 5 and switching the first switching valve 8 . The pressure in the first loop circuit may be measured by providing a pressure sensor (not illustrated) and may be estimated from operation of the decompressing pump 5 and the first switching valve 8 .
  • the first switching valve 8 is, for example, a three-way valve.
  • the control unit C is connected to such as the air blowing unit 4 , the decompressing pump 5 , the cooling unit 7 , and the first switching valve 8 and controls operation thereof.
  • the control unit C may use an integrated circuit such as a microcomputer and a program logic device (PLD), may use a manual operation switch, and may use both of the integrated circuit and the switch.
  • PLD program logic device
  • the control unit C may control operation of the water collecting system 100 based on the amount of collected water by using a sensor (not illustrated) for measuring the water collecting amount. Further, the control unit C may control operation of the water collecting system 100 based on a pressure by using a sensor (not illustrated) for measuring a pressure of second gas.
  • the amount of collected water, a pressure, a humidity, and a temperature are measured, compared with a reference value, and determined, and then operation of a device (system) according to the embodiment is controlled.
  • a metal pipe and a resin pipe can be used for the line L which is a pipe according to the embodiment.
  • a material, an appearance, and an inner diameter of the line L can be appropriately selected in accordance with a fluid passing through the pipe.
  • FIG. 2 illustrates a chart of the water collecting cycle according to the first embodiment.
  • the water collecting cycle illustrated in the chart in FIG. 2 includes a water collecting start step (S 1 - 1 ), an air blowing unit operation start step (S 1 - 2 ), a cooling unit operation start step (S 1 - 3 ), a switching valve switching (L 2 to L 5 ) step (S 1 - 4 ), a decompression pump operation start step (S 1 - 5 ), a pressure comparison (P ⁇ P SET ) step (S 1 - 6 ), a switching valve switching (L 2 to L 3 ) step (S 1 - 7 ), a water collecting amount comparison (V ⁇ V SET1 ) step (S 1 - 8 ), a decompressing pump operation stop step (S 1 - 9 ), a cooling unit operation stop step (S 1 - 10 ), and a water collecting stop step (S 1 - 1 ), a water collecting start step (S 1 - 1 ), an air blowing unit operation start
  • the water collecting start step (S 1 - 1 ) is, for example, an instruction from the control unit C for starting water collecting.
  • the instruction from the control unit C is such as timing when the amount of collected water becomes lower than a determined amount, timing set by the control unit C, and switch operation by an operator.
  • the air blowing unit operation start step (S 1 - 2 ) is a step to start operation of the air blowing unit 4 which feeds first gas to the first chamber 1 .
  • An air blowing amount is determined to an appropriate amount in accordance with a cooling performance of the cooling unit 7 and a temperature and a humidity of the first gas.
  • the air blowing unit 4 may be operated continuously or intermittently.
  • the cooling unit operation start step (S 1 - 3 ) is a step to start cooling in the water collecting unit 6 by operating the cooling unit 7 . This step differs depending on a device used in the cooling unit 7 . In the case where a lower temperature air is used for the cooling unit 7 , for example, a device for generating a low temperature air is operated, and the low temperature air is fed toward the water collecting unit 6 . In the case where a heat exchanger is used for the cooling unit 7 , for example, in a heating cycle of an air controller, the water collecting unit 6 is cooled by vaporization heat generated by the heat exchanger when a liquid refrigerant is vaporized.
  • a power source connected to the Peltie device is operated to cool one side face of the Peltie device, and the water collecting unit 6 is cooled on the low temperature side of the Peltie device.
  • the cooling unit operation start step (S 1 - 3 ) may be performed before S 1 - 8 and after S 1 - 2 .
  • the cooling unit 7 is continuously or intermittently operated, and the cooling unit 7 cools a region in the water collecting unit 6 , reduces saturated steam in the water collecting unit 6 , and condenses (liquefies(steam.
  • the switching valve switching (L 2 to L 5 ) step (S 1 - 4 ) is a step to cause second gas to flow from the line L 2 to the line L 5 by operating the first switching valve 8 .
  • the second gas flow in a second fluid passage.
  • the decompressing pump operation start step (S 1 - 5 ) is a step to discharge the second gas from the line L 5 by starting operation of the decompressing pump 5 .
  • the second gas fed by the decompressing pump 5 passes through the lines L 2 and L 5 and is exhausted from the line L 5 . Since the decompressed second gas flows, vaporized water easily move from first gas to the second gas. A decompression speed and a flow speed of the second gas can be changed by increasing an air blowing amount of the decompressing pump 5 .
  • the decompressing pump 5 is preferably operated at an appropriate condition in consideration of such as properties of the water-permeable membrane 3 , the amount of collected water, the time for water collecting.
  • the pressure comparison (P ⁇ P SET1 ) step (S 1 - 6 ) is a step to determine whether a pressure P of the second gas becomes equal to or less than a set pressure P SET1 .
  • P ⁇ P SET1 is satisfied (true)
  • the next step is performed.
  • P ⁇ P SET1 is not satisfied (false)
  • decompression operation by the decompressing pump 5 is continued without switching the first switching valve 8 .
  • the P SET1 is preferably operated at an appropriate condition in consideration of such as properties of the water-permeable membrane 3 , the amount of collected water, and the time for water collecting.
  • P 1 When a pressure of the first gas is denoted by P 1 , the P SET1 is a value lower than P 1 , and for example, the P SET1 can be set to 0.9P 1 .
  • the switching valve switching (L 2 to L 3 ) step (S 1 - 7 ) is a step to cause the second gas to flow from the line L 2 to the line L 3 by operating the first switching valve 8 .
  • the opened first loop circuit is closed, and the second gas circulates in a first loop circuit.
  • the second gas flow in a first fluid passage.
  • gaseous water moves from the first gas to the second gas, and a humidity of the second gas is increased.
  • the second gas circulating in the first loop circuit is cooled when passing through the water collecting unit 6 .
  • the amount of saturated steam in the cooled second gas is reduced, supersaturated gaseous water is condensed, and liquid water can be collected.
  • the amount of collected water can be increased by continuously circulating the second gas.
  • a step before S 1 - 7 although a collecting speed is slow in comparison with the present step, in a similar mechanism, gaseous water is condensed, and liquid water is collected.
  • a pressure of the second gas may be increased.
  • the switching valve switching (L 2 to L 5 ) step (S 1 - 4 ), the pressure comparison (P ⁇ P SET1 ) step (S 1 - 6 ), and the switching valve switching (L 2 to L 3 ) step (S 1 - 7 ) may be repeatedly performed.
  • the pressure P of the second gas is equal to or less than a set pressure P SET2 . If the pressure P of the second gas is higher than the set pressure P SET2 , the second gas is preferably decompressed again.
  • the pressure P SET2 is preferably a value, for example, equal to or greater than the pressure P SET1 .
  • the water collecting amount comparison (V ⁇ V SET1 ) step (S 1 - 8 ) is a step to determine whether the amount of collected water (water remaining amount) V is equal to or greater than a determined amount V SET1 .
  • V ⁇ V SET1 is satisfied (true)
  • the next step is performed.
  • V ⁇ V SET1 is not satisfied (false)
  • water collecting is continued.
  • the determined amount V SET1 may be appropriately set in accordance with the required collected water amount.
  • the amount of collected water may be a value obtained by measuring an actual water amount and may be a value estimated by analyzing information on a temperature and a humidity of the first gas and an operation history of the water collecting system 100 .
  • the decompressing pump operation stop step (S 1 - 9 ) is a step to stop operation of the decompressing pump 5 .
  • the cooling unit operation stop step (S 1 - 10 ) is a step to stop operation of the cooling unit 7 . Either of the step S 1 - 9 or S 1 - 10 may be performed first.
  • the water collecting stop step (S 1 - 11 ) is a step to wait until the next water collecting cycle starts after all of water collecting steps are finished.
  • Water is efficiently collected by the above-described steps. Gaseous water passed through the water-permeable membrane 3 is collected as liquid water. Therefore, the water collected in the embodiment is hardly contaminated or not contaminated and is preferable from a hygiene point of view and a storage point of view.
  • a second embodiment relates to a humidification system and a humidification method.
  • a humidification system of an embodiment has a water supplying unit with a water-permeable membrane, a first chamber and a second chamber separated from the first chamber by the permeable membrane, a vacuum unit, a water collecting unit collecting liquid water, a first switching valve, a cooling unit cooling the water collecting unit, an air blowing unit sending first gas to the first chamber, a liquid water vaporization unit vaporizing the liquid water, and a liquid feed unit feeding the liquid water collected by the water collecting unit to the liquid water vaporization unit.
  • the second chamber, the vacuum unit, the water collecting unit, and the first switching valve comprise a first loop circuit in which second gas flow.
  • the vacuum unit decompresses the second gas flowing in the first loop circuit and reduces a pressure in the second gas in comparison with a pressure in the first gas.
  • the cooling unit collects liquid water by cooling cools the second gas passing through the water collecting unit and condensing gaseous water included in the second gas.
  • the liquid water vaporization unit vaporizes the liquid water.
  • FIG. 3 illustrates a schematic view of a humidification system (humidification device) 200 according to the second embodiment.
  • a humidification system 200 illustrated in FIG. 3 includes a water supplying unit separated by a water-permeable membrane 3 into a first chamber 1 and a second chamber 2 , a decompressing pump 5 which is a vacuum unit, a water collecting unit 6 , a first switching valve 8 , a cooling unit 7 , an air blowing unit 4 , a liquid water vaporization unit 10 , and a control unit C.
  • the water supplying unit separated by the water-permeable membrane 3 into the first chamber 1 and the second chamber 2 , the decompressing pump 5 which is the vacuum unit, the water collecting unit 6 , the first switching valve 8 , the cooling unit 7 , and the air blowing unit 4 are commonly used in the water collecting system 100 according to the first embodiment.
  • the water collecting unit 6 , a liquid feed pump 9 , and the liquid water vaporization unit 10 form a second circuit.
  • the second circuit is an opened circuit in which liquid water collected by the water collecting unit 6 flow.
  • Lines L 6 and L 7 are pipes in which the liquid water collected by the water collecting unit 6 flow.
  • the humidification system 200 can be used in a device for controlling humidity in a room, such as an air conditioner and a humidifier.
  • a water collecting system is disposed outside of a room which is a space to be humidified, and the liquid water vaporization unit 10 is disposed inside the room.
  • An arrow in FIG. 4 indicates a direction in which fluid flow in an operation cycle to be described below.
  • the water collecting system according to the second embodiment is common with the water collecting system 100 and the water collecting method according to the first embodiment. Descriptions of such as configurations, steps, and operation methods common in the second embodiment and the first embodiment will be omitted.
  • the liquid feed pump 9 is a liquid feed unit for feeding liquid water collected by the water collecting unit 6 to the liquid water vaporization unit 10 .
  • a tube pump and a diaphragm liquid feed pump can be used as the liquid feed pump 9 .
  • the line L 6 connects the liquid feed pump 9 and the water collecting unit 6 .
  • the line L 7 connects the liquid feed pump 9 and the liquid water vaporization unit 10 .
  • a check valve is provided in the liquid feed pump 9 , or a valve is provided in the line L 7 , to prevent backflow of liquid water while the liquid feed pump 9 is stopped.
  • a three way valve (not illustrated) is provided in the line L 7 , one side is connected to the liquid feed pump 9 side, another side is connected to the liquid water vaporization unit 10 , the other side is connected to a drain pipe, and liquid water between the water collecting unit 6 and the line L 7 may be discharged after humidification is finished and when humidification is not performed for a long time.
  • the liquid feed pump 9 transports liquid water. Therefore, the pump does not need much transportation energy per water transportation capacity (g/hour) in comparison with a case of transporting moist air including water. Therefore, since noise generation can be suppressed while the liquid feed pump 9 is operated, a humidification system which transports liquid water is preferable.
  • the liquid water vaporization unit 10 is a unit to absorb liquid water and vaporize the absorbed water.
  • the liquid water vaporization unit 10 preferably includes at least a hydrophilic porous body.
  • the hydrophilic porous body is such as water absorptive (porous) and hydrophilic polymer fiber, for example, having a nonwoven fabric structure (for example, polyester fiber and rayon fiber), polymer fiber having a nonwoven fabric structure reinforced by a reinforcing agent such as phenol resin (for example, Unipex SB), sintered polyolefin resin, and a pulp having nonwoven fabric structure (for example, Kimtowels).
  • the hydrophilic porous body vaporizes absorbed liquid water.
  • a blower for feeding air to the hydrophilic porous body is preferably used in the liquid water vaporization unit 10 .
  • the control unit C preferably further controls the liquid feed pump 9 and the blower of the liquid water vaporization unit 10 .
  • the control unit C can detect a humidity change by a humidity sensor (not illustrated) in the humidification system 200 and control humidification operation based on the detected humidity information.
  • FIG. 4 illustrates a chart of the humidification cycle according to the second embodiment.
  • the humidification cycle illustrated in the chart in FIG. 4 includes a water collecting step S 1 , a humidification operation start step (S 2 - 1 ), a liquid feed pump operation start step (S 2 - 2 ), a humidity comparison ( ⁇ SET1 ) step (S 2 - 3 ), a liquid feed pump operation stop step (S 2 - 4 ), and a humidification operation stop step (S 2 - 5 ).
  • the water collecting step S 1 is the water collecting cycle steps S 1 - 1 to S 1 - 11 in the water collecting system 100 described in the first embodiment. If the amount of collected water (water remaining amount) V is equal to greater than a determined amount V SET2 , the water collecting step S 1 may be omitted, and the humidification operation step S 2 may be performed. Further, the water collecting step S 1 may be performed while humidification operation is not performed such that the humidification operation step S 2 can be performed at an arbitrary timing. An appropriate value in accordance with humidification conditions is preferably set to the water amount V SET2 .
  • the humidification operation start step S 2 - 1 is an instruction from the control unit C for starting a humidification operation.
  • the instruction from the control unit C is such as timing when a humidity ⁇ in a space to be humidified becomes equal to or lower than a determined humidity ⁇ SET2 , timing set by the control unit C, and switch operation by an operator.
  • a humidification operation and a water collecting operation are not performed at the same time. Therefore, the humidification operation is performed after the water collecting step S 1 is finished.
  • An appropriate value in accordance with humidification conditions is preferably set to the humidity ⁇ SET2 .
  • the liquid feed pump operation start step (S 2 - 2 ) is a step to operate the liquid feed pump 9 and feed liquid water in the water collecting unit 6 to the liquid water vaporization unit 10 .
  • the liquid water passed through the lines L 6 and L 7 is absorbed by a hydrophilic porous body in the liquid water vaporization unit 10 .
  • the amount of steam in a space to be humidified can be increased.
  • the vaporization amount of water from the hydrophilic porous body in humidification can be controlled by operation conditions of the liquid feed pump 9 and a blower in the liquid water vaporization unit 10 .
  • the humidity comparison ( ⁇ SET1 ) step (S 2 - 3 ) is a step to determine whether the humidity ⁇ in a space to be humidified is equal to or greater than the determined humidity ⁇ SET1 .
  • a humidity sensor (not illustrated) is preferably used in the space to be humidified.
  • ⁇ SET1 is satisfied (true)
  • the next step is performed.
  • ⁇ SET1 is not satisfied (false)
  • humidification is continued.
  • the humidity ⁇ SET1 is such as a value determined in advance, a value calculated by the control unit C based on a temperature in the room to be humidified and an outside weather condition, and a value set by an operator.
  • the humidity is either a relative humidity or an absolute humidity.
  • the amount of vaporized water is calculated or estimated from the amount of liquid water fed by the liquid feed pump 9 and the time for humidification.
  • a set condition is satisfied, it is determined to be “true”, and the next step may be performed.
  • the set condition is not satisfied, it is determined to be “false”, humidification may be continued.
  • water in the water collecting unit 6 run out, and water cannot be fed to the liquid water vaporization unit 10 , it is determined to be “true”, and the next step can be performed.
  • liquid water stored between the water collecting unit 6 and the line L 7 may be discharged.
  • the liquid water may be discharged from a drain (not illustrated) by connecting the line L 7 and the drain, and the liquid water may be vaporized by the liquid water vaporization unit 10 until the liquid water is gone.
  • the liquid feed pump operation stop step (S 2 - 4 ) is a step to stop operation of the liquid feed pump 9 .
  • liquid water stored in the line L 7 and the water collecting unit 6 may be discharged through an exhaust passage (not illustrated).
  • the humidification operation stop step (S 2 - 5 ) is a step to wait until all of the humidification steps are finished, and the next cycle starts.
  • a cycle next to the present step may be a cycle of the water collecting step S 1 , and may be a cycle of the humidification step S 2 if sufficient liquid water is remained.
  • humidification can be performed by using liquid water in which water is efficiently collected. Since liquid water is fed, humidification can be stably and efficiently performed in a short time, in comparison with a case where gaseous water passing through a pipe is used for humidification.
  • gaseous water collected from outside is used as it is for humidification, when an outside air humidity is low, a large energy is required to increase humidity, and it is sometimes difficult to reach a targeted humidity, and also a pump with large noise is needed for humidification.
  • gaseous water passed through the water-permeable membrane 3 is collected as liquid water, and therefore, the water collected in the embodiment is hardly contaminated or not contaminated, and vaporized water discharged by humidification is preferable from a hygiene point of view and a storage point of view.
  • a third embodiment relates to an air conditioning system and a humidification method.
  • An air conditioning system of an embodiment has a water supplying unit separated by a water-permeable membrane, a first chamber and a second chamber separated from the first chamber by the permeable membrane, a vacuum unit, a water collecting unit collecting liquid water, a first switching valve, an air blowing unit sending first gas to the first chamber, a liquid water vaporization unit vaporizing the liquid water, a liquid feed unit feeding the liquid water collected by the water collecting unit to the liquid water vaporization unit, and a heat pump cycle including a cooling unit.
  • the second chamber, the vacuum unit, the water collecting unit, and the first switching valve comprise a first loop circuit in which second gas flow.
  • the vacuum unit decompresses the second gas flowing in the first loop circuit and reduces a pressure in the second gas in comparison with a pressure in the first gas.
  • the cooling unit is cooled by heat absorption by the refrigerant in the heat pump cycle.
  • the cooled cooling unit cools the water collecting unit and the liquid water is collected by condensing gaseous water included in the second gas, Humidification by vaporizing the liquid water by the liquid water vaporization unit and air conditioning operation by the heat pump cycle are performed.
  • FIG. 5 illustrates a schematic view of the air conditioning system (air conditioner) 300 according to the third embodiment.
  • the air conditioning system 300 includes a humidification system 200 and a heat pump cycle.
  • the air conditioning system 300 collects water by cooling a water collecting unit 6 by heat absorption by a refrigerant in the heat pump cycle and performs humidification and air conditioning operation.
  • the water supplying unit separated by the water-permeable membrane 3 into the first chamber 1 and the second chamber 2 , the decompressing pump 5 which is the vacuum unit, the water collecting unit 6 , the first switching valve 8 , the cooling unit 7 , and the air blowing unit 4 are commonly used in the water collecting system 100 according to the first embodiment or the humidification system 200 according to the second embodiment.
  • the liquid feed pump 9 and the liquid water vaporization unit 10 are commonly used in the humidification system 200 according to the second embodiment.
  • the first heat exchanger 11 , the compressor 12 , the four-way valve 13 , the first expansion valve 14 , the second heat exchanger 15 , the second switching valve 16 , the second expansion valve 17 , and the third heat exchanger 7 comprises a third circuit.
  • the third circuit is a circuit in which a refrigerant circulates.
  • Lines L 8 to L 16 are pipes in which the refrigerant flows.
  • the air conditioning system 300 performs heating operation.
  • the air conditioning system 300 performs heating operation.
  • the first heat exchanger 11 and the liquid water vaporization unit 10 are disposed in a room which is a space to be humidified, and others are disposed outside.
  • a third heat exchanger is used in which heat is exchanged by flowing a refrigerant of the air conditioning system 300 as the cooling unit 7 .
  • the cooling unit is not limited to the third heat exchanger 7 , a Peltie device and low temperature air may be used, and these may be combined with the third heat exchanger.
  • a cooling unit other than the third heat exchanger 7 such as the Peltie device and the low temperature air is used, the second expansion valve 17 , the second switching valve 16 , and the lines L 14 , L 15 , and L 16 can be omitted.
  • the compressor 12 is disposed between the first heat exchanger 11 and the second heat exchanger 15 and compresses a refrigerant.
  • the four-way valve 13 for switching a refrigerant flow direction is disposed between the compressor 12 and the first heat exchanger 11 .
  • the lines L 8 and L 13 connect the compressor 12 and the four-way valve 13 .
  • An accumulator for storing a liquid refrigerant may be attached to a part of the compressor 12 .
  • a refrigerant output from the compressor 12 is again absorbed by the compressor 12 through the four-way valve 13 , the second switching valve 16 , the second expansion valve 17 , and the third heat exchanger 7 .
  • a refrigerant used in an air conditioner such as hydrofluorocarbon and hydrochlorofluorocarbon, can be used as a refrigerant according to the embodiment.
  • the four-way valve 13 is disposed between the compressor 12 and the first heat exchanger 11 and between the compressor 12 and the second heat exchanger 15 .
  • the line L 9 connects the four-way valve 13 and the first heat exchanger 11 .
  • the line L 15 connects the four-way valve 13 and the second heat exchanger 15 .
  • the four-way valve 13 can switch a circulation direction of a refrigerant compressed by the compressor 12 .
  • a circulation circuit in which the compressed refrigerant flows toward the first heat exchanger 11 is a circuit for heating operation. In heating operation, heated air is fed from the first heat exchanger 11 to the inside of a room.
  • a circulation circuit in which the compressed refrigerant flows toward the second heat exchanger 15 is a circuit for cooling operation.
  • cooling operation cooled air is fed from the first heat exchanger 11 to the inside of a room.
  • a heating operation will be described in the embodiment, and a cooling operation will be omitted.
  • the air conditioning system 300 can have both heating and cooling functions.
  • the air conditioning system 300 having only a heating function may not include the four-way valve 13 .
  • the first heat exchanger 11 is disposed between the four-way valve 13 and the first expansion valve 14 .
  • the line L 9 connects the first heat exchanger 11 and the four-way valve 13 .
  • the line L 10 connects the first heat exchanger 11 and the first expansion valve 14 .
  • the first heat exchanger 11 exchanges heat in a high-pressure and high-temperature refrigerant compressed by the compressor 12 and indoor air and discharge air heated by condensing a refrigerant in a room.
  • the heat-exchanged air is fed in a room by a fan rotated by a motor.
  • the liquid water vaporization unit 10 is disposed in the first heat exchanger 11 . This is for feeding humidified and heated air from a common vent.
  • a vent to feed humidified air and a vent to feed heated air may be separately provided.
  • the first expansion valve 14 is disposed between the first heat exchanger 11 and the second heat exchanger 15 .
  • the line L 10 connects the first expansion valve 14 and the first heat exchanger 11 .
  • the first expansion valve 14 and the second heat exchanger 15 are connected by the line L 11 .
  • the first expansion valve 14 is a member for decompressing a refrigerant passed through the first heat exchanger 11 .
  • the second heat exchanger 15 is disposed between the first expansion valve 14 and the four-way valve 13 .
  • the line L 11 connects the second heat exchanger 15 and the first expansion valve 14 .
  • the line L 12 connects the second heat exchanger 15 and the four-way valve 13 .
  • the second heat exchanger 15 is a member for exchanging heat between a low-temperature and low-pressure refrigerant decompressed by the first expansion valve 14 and outdoor air and for discharging air cooled by vaporizing the refrigerant to the outside of a room.
  • the second switching valve 16 is disposed between the first expansion valve 14 and the second expansion valve 17 .
  • the line L 10 connects the second switching valve 16 , the first heat exchanger 11 , and the first expansion valve 14 .
  • the line L 14 connects the second switching valve 16 and the second heat exchanger 15 .
  • the second switching valve 16 controls flow of a refrigerant to the second expansion valve 17 and the third heat exchanger 7 .
  • a refrigerant flows to the second expansion valve 17 and the third heat exchanger 7 .
  • the second switching valve 16 is closed, the refrigerant does not flow to the second expansion valve 17 and the third heat exchanger 7 .
  • the second expansion valve 17 is disposed between the first heat exchanger 11 and the third heat exchanger 7 .
  • the lines L 10 and L 14 connect the second expansion valve 17 and the first heat exchanger 11 .
  • the line L 15 connects the second expansion valve 17 and the third heat exchanger 7 .
  • the second expansion valve 17 is a member for decompressing a refrigerant passed through the first heat exchanger 11 .
  • the third heat exchanger 7 exchanges heat in the low-temperature and low-pressure refrigerant decompressed by the second expansion valve 17 and heat in the water collecting unit 6 and cools the water collecting unit 6 .
  • the third heat exchanger 7 is cooled by a low-temperature and low-pressure refrigerant, and the water collecting unit 6 directly and indirectly exchanges heat with the third heat exchanger 7 . Accordingly, the water collecting unit 6 is cooled, and the water collecting unit 6 condenses gaseous water and collects liquid water.
  • the line L 15 connects the second expansion valve 17 and the third heat exchanger 7 .
  • the line L 16 connects the third heat exchanger 7 and the second heat exchanger 15 .
  • the lines L 16 and L 12 connect the second expansion valve 17 and the four-way valve 13 .
  • the second switching valve 16 is opened, and the lines L 10 and L 14 are conducted.
  • the third heat exchanger 7 may directly exchange heat with the water collecting unit 6 and may indirectly exchange heat by using air as a medium.
  • connection method is not limited to the method indicated in FIG. 5 , and, for example, the second heat exchanger 15 and the third heat exchanger 7 can be connected in series, and the second switching valve 16 may be omitted in this case.
  • FIG. 6 illustrates a chart of the air conditioning cycle for humidification according to the third embodiment.
  • the humidification cycle illustrated in the chart in FIG. 6 includes an air conditioning operation start step (S 3 - 1 ), a water collecting step S 1 , a humidification step S 2 , a compressor operation start step (S 3 - 2 ), an air blowing start step (S 3 - 3 ), and an air conditioning operation stop step (S 3 - 4 ).
  • An air conditioning cycle for humidification to be described below will be described regarding a heating operation.
  • the second switching valve 16 When a cooling operation is performed, the second switching valve 16 is preferably closed such that a refrigerant does not flow between the second expansion valve 17 and the third heat exchanger 7 .
  • An arrow in FIG. 6 indicates a direction in which fluid flow in an operation cycle to be described below.
  • the air conditioning operation start step (S 3 - 1 ) is, for example, an instruction from the control unit C for starting air conditioning operation.
  • the instruction from the control unit C is timing set by the control unit C and switch operation by an operator.
  • the water collecting step S 1 is the water collecting cycle steps S 1 - 1 to S 1 - 11 in the water collecting system 100 described in the first embodiment. If the amount of collected water (water remaining amount) V is equal to or greater than a determined water amount V SET2 , the water collecting step S 1 may be omitted, and the humidification operation step S 2 may be performed. Further, the water collecting step S 1 may be performed while humidification operation is not performed such that the humidification operation step S 2 can be performed at an arbitrary timing. Furthermore, the water collecting step S 1 may be performed while an air conditioning operation is not performed.
  • the water collecting step S 1 may be independently performed during a preliminary air conditioning operation or by further using a cooling unit (not illustrated) such as a Peltie device.
  • a cooling unit such as a Peltie device.
  • An appropriate value in accordance with humidification conditions is preferably set to the water amount V SET2 .
  • the humidification step S 2 is the humidification cycle steps S 2 - 1 to S 2 - 5 in the humidification system 200 according to the embodiment.
  • the start timing of the humidification step S 2 is timing when a humidity ⁇ in a space to be humidified becomes equal to or less than a determined humidity ⁇ SET2 and timing when the water collecting step S 1 is finished.
  • the humidification system 200 may wait until an air conditioning operation is stopped, and when the humidity ⁇ in a space to be humidified becomes equal to or less than a determined humidify ⁇ SET3 , the humidification operation and the water collecting step may be restarted.
  • An appropriate value in accordance with humidification conditions is preferably determined to the humidity ⁇ SET2 and the humidity ⁇ SET3 .
  • the water collecting step S 1 may be performed for the next humidification step S 2 .
  • a step to collect water by using a humidification system in the air conditioning system and a step to humidify by using the water collected by using the humidification system in the air conditioning system are alternatively performed, and these steps may be alternatively and repeatedly performed.
  • the water collecting step S 1 and the humidification step S 2 may be alternatively performed during air conditioning operation, and these steps may be alternatively and repeatedly performed.
  • the water collecting step S 1 is performed in advance, air conditioning operation is started, and humidification operation can be performed without performing the water collecting step S 1 .
  • the compressor operation start step (S 3 - 2 ) is a step to circulate a refrigerant by starting an operation of the compressor 12 .
  • operation of a heat pump cycle is started.
  • a low-temperature and low-pressure gaseous refrigerant becomes a high-temperature and high-pressure gaseous refrigerant by being compressed by the compressor 12 .
  • a refrigerant compressed by the compressor 12 is liquefied by being condensed by the first heat exchanger 11 through the four-way valve 13 .
  • the liquefied refrigerant is decompressed and cooled by the first expansion valve 14 .
  • the liquefied low-temperature and low-pressure refrigerant is liquefied by which heat in the refrigerant is absorbed by the second heat exchanger 15 .
  • the refrigerant liquefied by the second heat exchanger 15 returns to the compressor 12 through the four-way valve 13 .
  • the second switching valve 16 is opened, and a refrigerant is fed to the second expansion valve 17 and the third heat exchanger 7 .
  • the refrigerant fed to the second expansion valve 17 and the third heat exchanger 7 performs decompression and heat absorption as well.
  • the third heat exchanger 7 is used as a cooling unit, and when the amount of collected water becomes equal to or greater than V SET1 , the water collecting step S 1 is finished, and the humidification step S 2 is started.
  • a refrigerant pressure is not sufficiently adjusted, and therefore, the refrigerant is preferably circulated by the compressor 12 before air blowing is started.
  • the air blowing start step (S 3 - 3 ) is for feeding air heated by heat exchange between the first heat exchanger 11 and indoor air to the inside of a room. Operation and an air-blowing amount of the compressor 12 are appropriately adjusted such as by a set temperature for air conditioning. Air blowing may be performed in the liquid water vaporization unit 10 . Air blowing from the first heat exchanger 11 (the liquid water vaporization unit 10 ) may feed humidified air and heated air from a common vent, or the humidified air and the heated air may be fed from separate vents.
  • the air conditioning operation stop step (S 3 - 4 ) is a step to stop air blowing and operation of the compressor 12 .
  • an inside temperature T reaches a determined temperature T SET1 and when an operator stop operation by switch operation, the operation is stopped.
  • the water collecting system according to the first embodiment and the humidification system according to the second embodiment are included, and therefore water is efficiently collected during heating operation by using a heat cycle of a heat pump cycle, and humidification and air conditioning are performed by using the collected liquid water. Therefore, the air conditioning system according to the third embodiment can perform low-noise, highly efficient, and humid air conditioning operation by one device (system).
  • gaseous water passed through the water-permeable membrane 3 is collected as liquid water, and therefore, the water collected in the embodiment is hardly contaminated or not contaminated, and vaporized water discharged by humidification is preferable from a hygiene point of view and a storage point of view.
US15/063,917 2015-03-23 2016-03-08 Water collecting system, humidification system, and air conditioning system Abandoned US20160281999A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-059053 2015-03-23
JP2015059053A JP2016176674A (ja) 2015-03-23 2015-03-23 水回収システム、加湿システムおよび空気調和システム

Publications (1)

Publication Number Publication Date
US20160281999A1 true US20160281999A1 (en) 2016-09-29

Family

ID=56975042

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/063,917 Abandoned US20160281999A1 (en) 2015-03-23 2016-03-08 Water collecting system, humidification system, and air conditioning system

Country Status (2)

Country Link
US (1) US20160281999A1 (ja)
JP (1) JP2016176674A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019062443A1 (zh) * 2017-09-30 2019-04-04 青岛海尔空调电子有限公司 除湿系统、空调器及除湿控制方法
US10287037B2 (en) * 2016-03-31 2019-05-14 Oceaneering International, Inc. Membrane microgravity air conditoner
US20220153456A1 (en) * 2020-11-13 2022-05-19 Hamilton Sundstrand Corporation Integrated condensing heat exchanger and water separator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107842915A (zh) * 2017-11-20 2018-03-27 青岛海尔空调器有限总公司 空调器加湿系统
CN107906606A (zh) * 2017-11-20 2018-04-13 青岛海尔空调器有限总公司 空调器加湿系统
CN107906656A (zh) * 2017-11-20 2018-04-13 青岛海尔空调器有限总公司 加湿装置
CN107842916A (zh) * 2017-11-20 2018-03-27 青岛海尔空调器有限总公司 空调器加湿系统
CN107894031A (zh) * 2017-11-20 2018-04-10 青岛海尔空调器有限总公司 空调器加湿系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6834514B2 (en) * 2002-07-08 2004-12-28 Denso Corporation Ejector cycle
US7758671B2 (en) * 2006-08-14 2010-07-20 Nanocap Technologies, Llc Versatile dehumidification process and apparatus
US20140157985A1 (en) * 2011-05-03 2014-06-12 University Of Mississippi Dehumidification Systems and Methods Thereof
US20150168036A1 (en) * 2013-12-17 2015-06-18 Lennox Industries Inc. Managing high pressure events in air conditioners

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6834514B2 (en) * 2002-07-08 2004-12-28 Denso Corporation Ejector cycle
US7758671B2 (en) * 2006-08-14 2010-07-20 Nanocap Technologies, Llc Versatile dehumidification process and apparatus
US20140157985A1 (en) * 2011-05-03 2014-06-12 University Of Mississippi Dehumidification Systems and Methods Thereof
US20150168036A1 (en) * 2013-12-17 2015-06-18 Lennox Industries Inc. Managing high pressure events in air conditioners

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10287037B2 (en) * 2016-03-31 2019-05-14 Oceaneering International, Inc. Membrane microgravity air conditoner
WO2019062443A1 (zh) * 2017-09-30 2019-04-04 青岛海尔空调电子有限公司 除湿系统、空调器及除湿控制方法
US20220153456A1 (en) * 2020-11-13 2022-05-19 Hamilton Sundstrand Corporation Integrated condensing heat exchanger and water separator

Also Published As

Publication number Publication date
JP2016176674A (ja) 2016-10-06

Similar Documents

Publication Publication Date Title
US20160281999A1 (en) Water collecting system, humidification system, and air conditioning system
US5791157A (en) Heat pump device and desiccant assisted air conditioning system
JP2020091096A (ja) 屋上型液体乾燥剤システム及び方法
JP2019215156A (ja) ミニ分割液体デシカント空調のための方法及びシステム
CN103827589B (zh) 除湿系统
JP4835688B2 (ja) 空気調和装置、空調システム
CN110709643B (zh) 换气系统
US10393393B2 (en) Dehumidifier
US6484525B1 (en) Air conditioner
CN103717976A (zh) 调湿装置以及空气调节系统
CN104096459A (zh) 使用选择性传递膜的流体处理系统和方法
JP2008256256A (ja) 空気調和装置
JP2008144991A (ja) ヒートポンプ式空気調和機
JP6136525B2 (ja) 冷却貯蔵庫用ユニットクーラ
WO2000036346A1 (fr) Conditionneur d'air
JP2010014390A (ja) 調湿システム
JP4251004B2 (ja) 調湿装置
JP4529204B2 (ja) ヒートポンプ
JP2008190793A (ja) 空気調和装置
JP2002031378A (ja) 空気調和機
JP3873794B2 (ja) 加湿機能付き空気調和機
JP2024013907A (ja) 温度調節システム
WO2021005657A1 (ja) 空気調和装置
JP2018031548A (ja) 空気調和装置
JP4395936B2 (ja) 冷凍装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: KABUSHIKI KAISHA TOSHIBA, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YAGI, RYOSUKE;SUENAGA, SEIICHI;TOMIMATSU, NORIHIRO;AND OTHERS;REEL/FRAME:038801/0562

Effective date: 20160411

STCB Information on status: application discontinuation

Free format text: EXPRESSLY ABANDONED -- DURING EXAMINATION