WO2020218012A1 - Dispositif de climatisation - Google Patents

Dispositif de climatisation Download PDF

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Publication number
WO2020218012A1
WO2020218012A1 PCT/JP2020/015968 JP2020015968W WO2020218012A1 WO 2020218012 A1 WO2020218012 A1 WO 2020218012A1 JP 2020015968 W JP2020015968 W JP 2020015968W WO 2020218012 A1 WO2020218012 A1 WO 2020218012A1
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WIPO (PCT)
Prior art keywords
humidity
liquid
air conditioner
air
hygroscopic material
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PCT/JP2020/015968
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English (en)
Japanese (ja)
Inventor
井出　哲也
奨 越智
豪 鎌田
洋香 濱田
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シャープ株式会社
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Publication of WO2020218012A1 publication Critical patent/WO2020218012A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to an air conditioner.
  • the present application claims priority based on Japanese Patent Application No. 2019-82760 filed in Japan on April 24, 2019, the contents of which are incorporated herein by reference.
  • a heat pump type air conditioner has been widely used as a means for adjusting the temperature and humidity in a room.
  • the air conditioner is abbreviated as an air conditioner.
  • dehumidifying dehumidification by a conventional heat pump type air conditioner is accompanied by a decrease in room temperature, which reduces the comfort of the indoor environment and may cause discomfort to the user.
  • An air conditioner having a dehumidifying mode that does not lower the room temperature is also provided, but there is a problem that power consumption increases when this dehumidifying mode is used.
  • an air conditioner equipped with a dehumidifying mode that suppresses a decrease in room temperature is also provided, but the room temperature may decrease depending on the usage environment.
  • a heat pump type air conditioner dehumidifies by cooling the air below the dew point in order to condense the moisture in the air, and therefore cannot cope with humidification.
  • air cooling lowers the room temperature, which may cause the user to feel cold.
  • the air whose temperature has been lowered too much by the dehumidification is heated to the room temperature, so that the power consumption is increased.
  • the air temperature is raised by means such as mixing with air at room temperature and routing the high-temperature heat medium pipe.
  • Patent Document 1 an air conditioning system in which a humidity control device and an air conditioner are provided, and air whose humidity is adjusted by the humidity control device and air whose temperature is adjusted by the air conditioner are individually supplied to the same room. Is disclosed. According to Patent Document 1, since the humidity control capacity of the humidity control device is adjusted so as to satisfy the target relative humidity at the target temperature of the air conditioner according to this air conditioning system, the temperature and humidity in the room are quickly adjusted. It is stated that it can be done.
  • a dry desiccant type air conditioner that collects and humidifies the moisture in the air, but it is difficult to collect enough moisture from the air to humidify in the dry winter. Therefore, when it is desired to perform more sufficient humidification at home, a floor-standing type humidifier is often used in addition to the air conditioner.
  • vaporization type the humidity in the room may be increased and the room temperature may be increased, and the user may feel the heat and humidity.
  • One aspect of the present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide an air conditioner capable of not only dehumidifying but also sufficiently humidifying.
  • the air conditioner includes an air conditioner having a heat pump, a liquid desiccant type humidity controller, an air conditioner control unit for controlling the temperature of air discharged from the air conditioner, and the humidity controller.
  • the humidity controller includes a humidity controller control unit that controls the humidity of the air discharged from the air, and a control unit that includes the humidity controller, and the humidity controller includes a liquid hygroscopic material containing a hygroscopic substance and air supplied from the air conditioner.
  • the liquid hygroscopic material absorbs at least a part of the moisture contained in the air supplied from the air conditioner, or the air supplied from the air conditioner is contained in the liquid hygroscopic material.
  • Atomized droplets are generated by irradiating the humidity control portion that supplies at least a part of water and the liquid hygroscopic material with ultrasonic waves to form a liquid column on the liquid surface of the liquid hygroscopic material.
  • An ultrasonic atomization regeneration section that regenerates the liquid moisture absorption material by removing at least a part of water from the liquid moisture absorbing material, and at least one of the humidity control section and the ultrasonic atomization regeneration section. It has a water supply unit that supplies water for diluting the liquid hygroscopic material, and a circulation flow path that circulates the liquid hygroscopic material between at least the humidity control unit and the ultrasonic atomization regeneration unit.
  • the humidity-adjusted air is discharged into the room, and the humidity control device control unit controls the concentration of the liquid hygroscopic material and controls the irradiation time and output of the ultrasonic waves irradiating the liquid hygroscopic material. To do.
  • the ultrasonic atomization regeneration unit has a second ultrasonic output lower than that of the first ultrasonic output for forming the liquid column with respect to the diluted liquid hygroscopic material. It may be configured to have a function of irradiating the ultrasonic wave with an ultrasonic output.
  • the ultrasonic atomization regeneration unit may have a function of intermittently irradiating the diluted liquid moisture absorbing material with the ultrasonic waves. ..
  • the air conditioner according to the embodiment of the present invention may be configured to include a warm air supply flow path for supplying warm air discharged from the air conditioner to the ultrasonic atomization regeneration unit.
  • the air conditioner according to the embodiment of the present invention may be configured to include an atomized droplet recovery flow path that sends a gas containing the atomized droplets to the water supply unit.
  • the air conditioner according to the embodiment of the present invention may be configured to include a cold air supply flow path for supplying the cold air discharged from the air conditioner to the atomized droplet recovery flow path.
  • the humidity controller further includes a concentration detection unit for detecting the concentration of the liquid moisture absorbing material, and the humidity controller control unit adjusts to the concentration detected by the concentration detection unit. Based on this, the relative humidity of the air discharged from the humidity controller into the room may be grasped, and the humidity may be controlled based on the relative humidity.
  • an air conditioner capable of not only dehumidifying but also sufficiently humidifying.
  • FIG. 1 is a block diagram showing a schematic configuration of the air conditioner 1 of the first embodiment.
  • FIG. 2 is a schematic configuration diagram of the humidity controller 20 in the air conditioner of the first embodiment.
  • FIG. 3 is a graph showing the relationship between the relative humidity of the air A1 discharged from the air conditioner 10 and the concentration of the liquid hygroscopic material W in equilibrium with the relative humidity.
  • FIG. 4 is a block diagram showing a schematic configuration of the air conditioner 2 of the second embodiment.
  • FIG. 5 is a schematic configuration diagram of the humidity control device 20A in the air conditioner 2 of the second embodiment.
  • FIG. 6 is a block diagram showing a schematic configuration of a humidity controller in the air conditioner 3 of the third embodiment.
  • FIG. 7 is a schematic configuration diagram of the humidity controller 20B in the air conditioner 3 of the third embodiment.
  • FIG. 1 is a block diagram showing a schematic configuration of the air conditioner 1 of the first embodiment.
  • the air conditioner 1 of the present embodiment includes an air conditioner 10 having a heat pump 11, a liquid desiccant type humidity controller 20, an air transport flow path 30, and a control unit 40. There is.
  • the air conditioner 10 includes an indoor unit 12, an outdoor unit 13, and a heat pump 11.
  • the specific configurations of the indoor unit 12, the outdoor unit 13, and the heat pump 11 are the same as those of a conventional general air conditioner, and detailed description thereof will be omitted.
  • the indoor unit 12 is provided with a fan and a heat exchange unit (both not shown), and the indoor air is taken into the indoor unit 12 by the rotation of the fan, and the temperature or humidity is adjusted by the heat exchange unit. The air is discharged.
  • the outdoor unit 13 includes a fan, a heat exchange unit, a compressor, a condenser (all not shown), and the like, and exhaust gas is discharged to the outside.
  • the heat pump 11 includes a heat medium and a pipeline through which the heat medium is circulated.
  • the humidity control machine 20 of the present embodiment is a humidity control machine of a type that atomizes a liquid moisture absorbing material W containing water, a so-called liquid desiccant type humidity control machine.
  • the detailed configuration of the humidity controller 20 will be described later.
  • the air transport flow path 30 is a flow path that connects the air conditioner 10 and the humidity control device 20, and transports the air discharged from the air conditioner 10 to the humidity control device 20.
  • the air conditioner 10 supplies air whose temperature has been adjusted to the humidity control machine 20 via the air transport flow path 30, and the humidity control machine 20 supplies the humidity control air discharge flow path 23. Humidity-controlled air is discharged into the room through the air conditioner.
  • the control unit 40 includes an air conditioner control unit 41 and a humidity control device control unit 42.
  • the air conditioner control unit 41 controls the temperature of the air discharged from the air conditioner 10 by controlling each part of the air conditioner 10.
  • the humidity control machine control unit 42 controls the humidity of the air discharged from the humidity control machine 20 by controlling each part of the humidity control machine 20. Further, the humidity control machine control unit 42 determines the relative humidity of the air discharged from the humidity control machine 20 into the room via the humidity control air discharge flow path 23 based on the concentration detected by the concentration detection unit 215 (FIG. 2). Grasp and control humidity based on relative humidity.
  • FIG. 2 is a schematic configuration diagram of the humidity controller 20 in the air conditioner of the first embodiment.
  • the humidity control machine 20 of the present embodiment includes a humidity control unit 21, an ultrasonic atomization regeneration unit 24, a water supply unit 14, a first liquid moisture absorbing material transport flow path 22, and a first. 2.
  • the liquid moisture absorbing material transport flow path 25, the humidity control air discharge flow path 23, the air introduction flow path 26, the atomized droplet recovery flow path 28, and the water supply flow path 16 are provided.
  • the humidity control machine 20 includes a housing 201, and the above-mentioned components are housed in the internal space 201c of the housing 201.
  • the humidity control unit 21 includes a humidity control tank 211, a blower 212, a nozzle 213, and a concentration detection unit 215.
  • the humidity control unit 21 is connected to the air conditioner 10 via the air transport flow path 30, and the air A1 supplied from the air conditioner 10 is brought into contact with the liquid hygroscopic material W containing a hygroscopic substance to bring air into contact with the air. At least a part of the moisture contained in A1 is absorbed by the liquid hygroscopic material W to control the humidity, or at least a part of the water contained in the liquid hygroscopic material W is supplied to the air supplied from the air conditioner to control the humidity. To do.
  • the liquid moisture absorbing material W is stored inside the humidity control tank 211.
  • the liquid moisture absorbing material W will be described later.
  • a concentration detection unit 215 for detecting the concentration of the liquid moisture absorbing material W is installed inside the humidity control tank 211.
  • the concentration detection unit 215 for example, a densitometer of a type that measures the concentration by detecting a change in the refractive index is used.
  • the concentration detection unit 215 is arranged so as to detect the concentration of the liquid moisture absorbing material W stored inside the humidity control tank 211, but the concentration detection unit 215 is not limited to the position shown in the drawing.
  • the concentration of the liquid hygroscopic material W supplied from the nozzle 213 may be detected by arranging the liquid moisture absorbing material W in or near the nozzle 213.
  • the nozzle 213 is arranged in the upper part of the internal space of the humidity control tank 211.
  • the liquid moisture absorbing material W supplied from the nozzle 213 flows down along the honeycomb filter 33 installed in the internal space of the humidity control tank 211, and at this time, comes into contact with the air A1 supplied from the air conditioner 10.
  • This type of contact between the liquid hygroscopic material W and the air A1 is generally referred to as a "flow-down method".
  • the contact form between the liquid moisture absorbing material W1 and the air is not limited to the flow-down method, and other methods can be used.
  • a so-called bubbling method in which air is supplied in the form of bubbles in the liquid moisture absorbing material W stored in the humidity control tank 211, can also be used.
  • the blower 212 sends the air A1 sent from the air conditioner 10 into the humidity control tank 211 to generate an air flow toward the discharge port 23a of the humidity control air discharge flow path 23. At this time, at least a part of the moisture contained in the air A1 is absorbed by the liquid hygroscopic material W to control the humidity.
  • the humidity-controlled air A5 whose humidity is adjusted in the humidity-controlled unit 21 is supplied into the room via the humidity-controlled air discharge flow path 23.
  • the liquid hygroscopic material W is a liquid that exhibits a property of absorbing moisture (hygroscopicity). For example, a liquid that exhibits hygroscopicity under conditions of a temperature of 25 ° C., a relative humidity of 50%, and an atmospheric pressure is preferable.
  • the liquid hygroscopic material W contains a hygroscopic substance described later. Further, the liquid hygroscopic material W may contain a hygroscopic substance and a solvent. Examples of this type of solvent include solvents that dissolve or mix with hygroscopic substances, such as water.
  • the hygroscopic substance may be an organic material or an inorganic material.
  • Examples of the organic material used as a hygroscopic substance include alcohols having a divalent value or higher, ketones, organic solvents having an amide group, sugars, known materials used as raw materials for moisturizing cosmetics, and the like.
  • an organic material preferably used as a hygroscopic substance because of its high hydrophilicity a known material used as a raw material for alcohols having a divalent value or higher, an organic solvent having an amide group, sugars, moisturizing cosmetics and the like. Can be mentioned.
  • dihydric or higher alcohols examples include glycerin, propanediol, butanediol, pentandiol, trimethylolpropane, butanetriol, ethylene glycol, diethylene glycol, and triethylene glycol.
  • organic solvent having an amide group examples include formamide and acetamide.
  • sugars examples include sucrose, pullulan, glucose, xylene, fructose, mannitol, sorbitol and the like.
  • Known materials used as raw materials for moisturizing cosmetics include, for example, 2-methacryloyloxyethyl phosphorylcholine (MPC), betaine, hyaluronic acid, collagen and the like.
  • MPC 2-methacryloyloxyethyl phosphorylcholine
  • betaine betaine
  • hyaluronic acid collagen and the like.
  • inorganic materials used as hygroscopic substances include calcium chloride, lithium chloride, magnesium chloride, potassium chloride, sodium chloride, zinc chloride, aluminum chloride, lithium bromide, calcium bromide, potassium bromide, sodium hydroxide, and pyrrolidone.
  • examples thereof include sodium carboxylate.
  • the hygroscopic substance has high hydrophilicity
  • the proportion of water molecules in the vicinity of the surface (liquid surface) of the liquid hygroscopic material W increases.
  • the ultrasonic atomization regeneration unit 24 which will be described later, atomized droplets are generated from the vicinity of the surface of the liquid moisture absorbing material W to separate water from the liquid moisture absorbing material W. Therefore, it is preferable that the proportion of water molecules in the vicinity of the surface of the liquid moisture absorbing material W is large in that water can be efficiently separated.
  • the proportion of the hygroscopic substance in the vicinity of the surface of the liquid hygroscopic material W is relatively small, it is preferable in that the loss of the hygroscopic substance in the ultrasonic atomization regeneration unit 24 can be suppressed.
  • the concentration of the hygroscopic substance contained in the liquid hygroscopic material W1 used for the treatment in the humidity control unit 21 is not particularly limited, but is preferably 40% by mass or more.
  • the concentration of the hygroscopic substance is 40% by mass or more, the liquid hygroscopic material W1 can efficiently absorb water.
  • the viscosity of the liquid hygroscopic material W is preferably 25 mPa ⁇ s or less. As a result, in the ultrasonic atomization regeneration unit 24 described later, a liquid column of the liquid hygroscopic material W is likely to be generated on the liquid surface of the liquid hygroscopic material W. Therefore, water can be efficiently separated from the liquid moisture absorbing material W.
  • the ultrasonic type atomization regeneration unit 24 includes an atomization regeneration tank 241, a blower 242, an ultrasonic vibrator 243, and an induction tube 244.
  • the ultrasonic atomization / regeneration unit 24 atomizes at least a part of the water contained in the liquid moisture absorbing material W2 supplied from the humidity control unit 21 and removes at least a part of the water from the liquid moisture absorbing material W2.
  • the liquid moisture absorbing material W2 is regenerated.
  • the liquid moisture absorbing material W2 to be regenerated is stored inside the atomization regeneration tank 241.
  • a first liquid moisture absorbing material transport flow path 22, a second liquid moisture absorbing material transport flow path 25, an air introduction flow path 26, and an atomized droplet recovery flow path 28 are connected to the atomization regeneration tank 241.
  • the atomization regeneration tank 241 is connected to the humidity control tank 211 of the humidity control unit 21 via the first liquid moisture absorbing material transport flow path 22, and is inside the humidity control tank 211 through the first liquid moisture absorption material transport flow path 22.
  • the liquid moisture absorbing material W2 containing the moisture of the above is supplied.
  • the blower 242 in the present embodiment sends indoor air A2 from the external space of the housing 201 into the atomization regeneration tank 241 via the air introduction flow path 26, and atomizes the generated atomized droplets W3.
  • An air flow is generated from the inside of the regeneration tank 241 to the water supply unit 14 via the atomized droplet collection flow path 28.
  • the ultrasonic vibrator 243 generates atomized droplets W3 containing water from the liquid hygroscopic material W2 by irradiating the liquid hygroscopic material W2 stored in the atomization regeneration tank 241 with ultrasonic waves.
  • the liquid column C of the liquid hygroscopic material W2 is generated on the liquid surface 9 of the liquid hygroscopic material W2 by adjusting the conditions for generating the ultrasonic waves. be able to.
  • an ultrasonic wave of 2.4 MHz is irradiated.
  • a large amount of atomized droplets W3 are generated from the liquid column C of the liquid hygroscopic material W2.
  • the guide pipe 244 guides the atomized droplet W3 generated from the liquid moisture absorbing material W2 to the exhaust port 28a of the atomized droplet recovery flow path 28.
  • the guide pipe 244 is designed to surround the exhaust port 28a and the liquid column C, respectively, so that the airflow upward from the liquid level 9 of the liquid hygroscopic material W2.
  • the atomized droplets W3 generated from the liquid column C of the liquid hygroscopic material W2 are guided to the exhaust port 28a.
  • the atomized droplet recovery flow path 28 transports air A3 containing atomized droplets W3, that is, water vapor toward the water supply unit 14.
  • the water recovered from the steam is added to the water stored in the water supply unit 14.
  • the moisture absorption performance of the liquid hygroscopic material W2 is enhanced again by separating the moisture from the liquid hygroscopic material W2, and the liquid hygroscopic material W2 can be returned to the humidity control unit 21 and reused. it can.
  • the water supply unit 14 is arranged between the ultrasonic atomization regeneration unit 24 and the humidity control unit 21, and supplies water to the humidity control unit 21.
  • the water supply unit 14 includes a third storage tank 141 for storing water.
  • the atomized droplet recovery flow path 28 for introducing the water vapor generated in the ultrasonic atomization regeneration unit 24 into the third storage tank 141 and the third storage tank 141.
  • a water supply flow path 16 for supplying the stored water to the humidity control tank 211 of the humidity control unit 21 is connected.
  • a water supply pipe 17 capable of supplying tap water is connected to the third storage tank 141, and a predetermined amount of water is appropriately replenished from the water supply pipe 17.
  • the humidity control unit 21 and the ultrasonic atomization regeneration unit 24 are a first liquid hygroscopic material transport flow path (circulation flow path) 22 and a second liquid hygroscopic material transport flow path forming a circulation flow path of the liquid hygroscopic material W. It is connected by (circulation flow path) 25.
  • the first liquid moisture absorbing material transport flow path 22 transports the liquid moisture absorbing material W2 containing water from the humidity control unit 21 to the ultrasonic atomization regeneration unit 24.
  • the second liquid moisture absorbing material transport flow path 25 transports the liquid moisture absorbing material W regenerated after removing water from the ultrasonic atomization regeneration unit 24 to the humidity control unit 21.
  • connection point of the second liquid moisture absorbing material transport flow path 25 in the humidity control tank 211 is located above the liquid level 7 of the liquid moisture absorbing material W1 in the humidity control tank 211 and is connected to the nozzle 213 described above.
  • a pump 252 for circulating the liquid moisture absorbing material W1 only on the humidity control portion 21 side and a three-way valve 70 are provided.
  • a third liquid hygroscopic material transport flow path 18 is connected to the bottom of the humidity control tank 211, and is connected to the second liquid hygroscopic material transport flow path 25 via a three-way valve 70.
  • the third liquid hygroscopic material transport flow path 18 may be directly connected to the second liquid hygroscopic material transport flow path 25 without using the three-way valve 70.
  • a part of the liquid hygroscopic material W2 stored in the humidity control unit 21 is a part of the third liquid hygroscopic material transport flow path 18 and the second liquid hygroscopic material transport flow path 25 connected to the lower part of the humidity control tank 211. It is circulated only on the humidity control portion 21 side by the circulation flow path composed of.
  • a pump 253 for circulating the liquid hygroscopic material W may be arranged in the middle of the third liquid hygroscopic material transport flow path 18.
  • FIG. 3 is a graph showing the relationship between the relative humidity of the air A1 discharged from the air conditioner 10 and the concentration of the liquid hygroscopic material W in equilibrium with the relative humidity.
  • the horizontal axis represents the concentration of the liquid hygroscopic material W
  • the vertical axis represents the equilibrium relative humidity.
  • the humidity control machine 20 of the present embodiment adopts the liquid desiccant method, it is possible to self-control the humidity throughout the year and supply the humidity control air that does not cause dew condensation. ..
  • a humidity control machine 20 air A1 controlled to a temperature close to a set temperature in the air conditioner 10 is introduced into the humidity control machine 20 and brought into contact with the liquid moisture absorbing material W to balance the relative humidity of the air A1 without causing dew condensation.
  • Humidity control dehumidification and humidification
  • the air A1 controlled to the vicinity of the set temperature in the air conditioner 10 is introduced into the humidity control unit 21, and is adjusted by contacting the liquid moisture absorbing material W having a concentration of 80% supplied from the nozzle 213 into the humidity control tank 211. Wetting is performed. At this time, the air A1 is humidified from a humidity of 30% to a humidity of 50% by coming into contact with the liquid hygroscopic material W having a vapor pressure difference from that of the air A1.
  • the humidity control machine 20 performs humidity control (humidification) so that the relative humidity of the air discharged into the room becomes the equilibrium relative humidity with respect to the concentration of the liquid hygroscopic material W that comes into contact with the introduced air. Will supply air with set temperature and set relative humidity into the room. Therefore, the indoor environment can be maintained comfortably without lowering the room temperature or causing dew condensation.
  • the concentration of the liquid moisture absorbing material W in the humidity control tank 211 can be maintained at a predetermined concentration.
  • the liquid moisture absorbing material W stored in the humidity control tank 211 of the humidity control unit 21 can be diluted to a desired concentration by the water supplied from the water supply unit 14.
  • the humidity control machine control unit 42 controls the amount of water supplied from the water supply unit 14 based on the concentration of the liquid hygroscopic material W1 detected by the concentration detection unit 215.
  • a part of the diluted liquid hygroscopic material W flows in the circulation flow path composed of a part of the third liquid hygroscopic material transport flow path 18 and the second liquid hygroscopic material transport flow path 25, and is adjusted from the nozzle 213.
  • it When it is supplied into the wet tank 211, it comes into contact with the air A1 supplied from the air conditioner 10.
  • the liquid moisture absorbing material W in the humidity control tank 211 is transported to the atomizing regeneration tank 241 of the ultrasonic atomizing regeneration unit 24 via the first liquid moisture absorbing material transport flow path 22.
  • the liquid hygroscopic material W2 stored in the atomization regeneration tank 241 is irradiated with ultrasonic waves having a frequency of 2.4 MHz by the ultrasonic vibrator 243, and the liquid hygroscopic material W2 is irradiated.
  • a liquid column C is formed on the liquid level 9 of the above.
  • the liquid hygroscopic material W1 regenerated in the ultrasonic atomization regeneration unit 24 is transported to the humidity control unit 21 via the second liquid hygroscopic material transport flow path 25.
  • the humidity control device control unit 42 compares the current humidity with the target humidity based on the data of the equilibrium relative humidity with respect to the concentration of the liquid moisture absorbing material W, and dilutes or concentrates the liquid moisture absorbing material W to absorb the liquid moisture. Keep the concentration of material W constant. As a result, air having a constant relative humidity can be generated in a wide temperature range, so that humidity-controlled air that is less likely to condense can be supplied to the room.
  • the concentration of the liquid moisture absorbing material W is 80%
  • the humidity of air A1 having a relative humidity of 80% is adjusted (dehumidified) until the relative humidity reaches 50% as a target value. Is assumed.
  • the humidity control machine 20 introduces the air A1 controlled from the air conditioner 10 to the vicinity of the set temperature into the humidity control unit 21 in a state where the water supply from the water supply unit 14 is stopped, and the humidity control tank 20 is introduced from the nozzle 213.
  • the liquid hygroscopic material having a concentration of 80% supplied into the 211 By contacting with the liquid hygroscopic material having a concentration of 80% supplied into the 211, a part of the moisture contained in the air A1 is absorbed by the liquid hygroscopic material W and dehumidified from the humidity of 80% to the humidity of 50%. .. This corresponds to changing the state of air A1 from state C to state B in FIG.
  • the air conditioner 1 of the present embodiment uses a calculation unit that calculates the absolute temperature of the air to be regulated by the correlation between the concentration in a wide temperature range and the relative humidity, which is a feature of the liquid moisture absorbing material W. Relative humidity can be controlled without any problem.
  • the air controlled to the vicinity of the set temperature in the heat pump type air conditioner 10 is introduced into the humidity control unit 21, and the humidity is controlled by humidifying or dehumidifying. Therefore, even if the temperature-adjusted air is supplied from the air conditioner 10 to the humidity controller 20, the relative humidity of the outlet airflow discharged into the room can be increased while maintaining the temperature.
  • the air conditioner 1 of the present embodiment it is possible to obtain the desired humidity with low power consumption while minimizing the temperature change of the indoor air temperature.
  • the humidity in the room can be adjusted appropriately to enhance the comfort of the indoor environment. Further, since it is not necessary to reheat or recool the air after humidity control, it is possible to suppress an increase in power consumption due to reheating or recooling.
  • the humidity control device control unit 42 of the present embodiment stores data of the equilibrium relative humidity with respect to the concentration of the liquid hygroscopic material W in advance, and dilutes the liquid hygroscopic material W by comparing the current humidity with the target humidity. It is possible to determine whether to concentrate or to concentrate, and to adjust the humidity according to the user's wishes.
  • the vapor pressure difference can be obtained by diluting the liquid hygroscopic material to a concentration at which the difference from the relative humidity becomes large, so that the humidification can be performed quickly. ..
  • the air conditioner 1 wants to dehumidify in a shorter time, the vapor pressure difference can be obtained by concentrating the liquid hygroscopic material W to a concentration at which the difference from the relative humidity becomes large, so that the dehumidification can be performed quickly. ..
  • the air conditioner 1 capable of self-control of dehumidification and humidification can be provided, a comfortable indoor space with low power consumption is realized without using a separate humidifier. can do. Therefore, for example, the air conditioner 1 of the present embodiment can be preferably used when different humidity control is required for each application of the building or floor.
  • the air conditioner 10 of the present embodiment not only confirms the regenerated state of the liquid hygroscopic material W by monitoring the concentration of the liquid hygroscopic material using the concentration detection unit 215, but also allows the humidity control device 20 to enter the room.
  • the relative humidity of the discharged air can be grasped, and this can be used for humidity control.
  • the number of humidity sensors required for humidity control can be reduced.
  • the air conditioner 10 of the present embodiment has a function of disinfecting and sterilizing the liquid moisture absorbing material W in addition to the function of adjusting the humidity.
  • Glycerin, lithium chloride, etc. used as the liquid hygroscopic material W originally have antibacterial properties, but when the liquid hygroscopic material W diluted for humidification is circulated in a closed space, there is a concern about the growth of germs and mold. To.
  • the liquid hygroscopic material W diluted in the ultrasonic atomization regeneration unit 24 is sterilized by irradiating it with ultrasonic waves.
  • the sterilization treatment of the liquid hygroscopic material W is performed even at the time of atomization regeneration, but it can also be performed at the time of not performing atomization regeneration.
  • the diluted liquid hygroscopic material W1 is not retained in the humidity control tank 211 and the atomization regeneration tank 241 but is intermittently driven by the ultrasonic vibrator 243 to absorb liquid moisture.
  • the material W is sterilized.
  • the liquid moisture absorbing material is circulated between the humidity control tank 211 and the atomization regeneration tank 241 by driving the pumps 252 and 253. It is preferable that all the liquid hygroscopic materials in the humidity control unit 21 are evenly sterilized.
  • the sterilization mold killing treatment mode does not have to be executed all the time, for example, it is executed during the period when the atomization regeneration mode is not executed.
  • the sterilizing and killing mold treatment mode may be carried out intermittently at intervals shorter than the growth speed of germs and molds in the diluted liquid hygroscopic material W.
  • the humidity control device control unit 42 of the present embodiment controls the irradiation time and output of ultrasonic waves to irradiate the diluted liquid moisture absorbing material W.
  • the output of the ultrasonic transducer 243 in the sterilization and mold killing treatment mode may be the same as the output when forming the liquid column C during atomization regeneration (first ultrasonic output), but the output when forming the liquid column.
  • the output may be lower than (second ultrasonic output).
  • the frequency at which sterilization and mold killing can be effectively obtained is a high frequency of 20 MHz or higher.
  • a high frequency having a frequency of 2.4 MHz is irradiated for the formation of the liquid column C, and by irradiating the high frequency, a high effect on sterilization and mold killing can be obtained. Therefore, even if the output of the ultrasonic wave to be irradiated is lower than the output forming the liquid column C, the bactericidal and antifungal effects can be sufficiently obtained.
  • the air conditioner 1 If the air conditioner 1 is not used depending on the time, the period during which ultrasonic waves are not irradiated becomes longer, and the growth of germs and molds becomes active. Therefore, even during the period when the atomization regeneration mode is not executed, it is regular or temporary.
  • the sterilizing and killing mode By executing the sterilizing and killing mode, it is possible to suppress the growth of germs and mold in the liquid moisture absorbing material W, but as described above, the sterilizing and killing effect can be obtained even if the ultrasonic output is low. Therefore, even if the atomization regeneration mode is not executed for a long period of time, the sterilization mold killing mode can be executed with low power consumption.
  • the air conditioner 1 of the present embodiment includes a humidity control unit 21 having separate storage tanks 211 and 241 and an ultrasonic atomization regeneration unit 24, the combination with the air conditioner 10 , The degree of freedom of arrangement of each of the humidity control unit 21 and the ultrasonic atomization regeneration unit 24 is high.
  • the air conditioner 2 of the second embodiment will be described with reference to FIGS. 4 and 5.
  • the basic configuration of the air conditioner 2 of the second embodiment is the same as that of the first embodiment, but the above-mentioned point is that the warm air discharged from the air conditioner 10 is used as the carrier gas in the ultrasonic atomization regeneration unit 24. It is different from the first embodiment.
  • FIG. 4 is a block diagram showing a schematic configuration of the air conditioner 2 of the second embodiment.
  • FIG. 5 is a schematic configuration diagram of the humidity control device 20A in the air conditioner 2 of the second embodiment.
  • the same components as those in the drawings used in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
  • one end side is the indoor unit 12
  • the other end side is the warm air supply flow path 76A connected to the ultrasonic atomization regeneration unit 24
  • one end side is the outdoor unit 13.
  • the other end side is provided with an exhaust heat supply flow path 76B connected to the ultrasonic atomization regeneration unit 24, and a part of the hot air during heating or the exhaust heat during cooling discharged from the air conditioner 10 is provided.
  • the carrier gas is introduced into the atomization regeneration tank 241 of the ultrasonic atomization regeneration unit 24.
  • the higher the temperature of the carrier gas the greater the amount of water contained in the liquid moisture absorbing material W atomized. Has the following characteristics. Therefore, in order to increase the amount of water atomized and improve the regeneration performance of the liquid moisture absorbing material W, it is preferable that the temperature of the carrier gas introduced into the ultrasonic atomization regeneration unit 24 is high.
  • the air conditioner 2 of the present embodiment includes a warm air supply flow path 76A connected to the air conditioner 10, and for example, a part of the warm air during heating is used as a carrier gas for ultrasonic atomization. Since it can be supplied to the regeneration unit 24, the atomization regeneration efficiency of the liquid moisture absorbing material W can be improved.
  • the exhaust gas is introduced into the atomization regeneration tank 241 as a carrier gas via the exhaust heat supply flow path 76B, and a part of the exhaust heat is used for atomization.
  • the amount of water atomized in the liquid moisture absorbing material W increases, and the regeneration performance of the liquid moisture absorbing material W can be improved.
  • the air conditioner 3 of the third embodiment will be described with reference to FIGS. 6 and 7.
  • the basic configuration of the air conditioner of the third embodiment is the same as that of the second embodiment, but the configuration of collecting atomized droplets by using the cold air discharged from the air conditioner is different from that of the second embodiment.
  • FIG. 6 is a block diagram showing a schematic configuration of the humidity controller 20B in the air conditioner 3 of the third embodiment.
  • FIG. 7 is a schematic configuration diagram of the humidity controller 20B in the air conditioner 3 of the third embodiment.
  • the same components as those in the drawings used in the second embodiment are designated by the same reference numerals, and the description thereof will be omitted.
  • the cold air supply flow path 77A and the exhaust supply flow flow are connected to the air conditioner 10 on one end side and the atomized droplet recovery flow path 28 on the other end side.
  • the road 77B is provided, and a part of the cold air during cooling discharged from the air conditioner 10 or the exhaust during heating is supplied to the atomized droplet recovery flow path 28.
  • the airflow containing the atomized droplets W3 generated in the ultrasonic atomization regeneration unit 24 is supplied to the water supply unit 14 through the atomized droplet recovery flow path 28, and is transported through the flow path during the transportation. In the process of passing, it is gradually cooled and collected as water in the water supply unit 14. Therefore, in order to efficiently recover water from water vapor containing atomized droplets, it is preferable to increase the cooling efficiency of water vapor.
  • the air conditioner 3 of the present embodiment includes a cold air supply flow path 77A and an exhaust supply flow path 77B connected to the air conditioner 10, and for example, a part of the cold air is supplied with cold air during cooling. It is introduced into the atomized droplet recovery flow path 28 through the flow path 77A, and a part of the exhaust gas is used for steam cooling through the exhaust supply flow path 77B during heating.
  • water can be efficiently recovered from the water vapor discharged from the ultrasonic atomization regeneration unit 24 in a short time, and can be reused as water for dilution with respect to the liquid hygroscopic material W.
  • the amount of water newly replenished to the water supply unit 14 can be saved.
  • a part of the warm air discharged from the air conditioner 10 is introduced into the ultrasonic atomization regeneration unit 24 via the warm air supply flow path 76A, and is used as a carrier gas during atomization regeneration. It can be used. As a result, the amount of water contained in the liquid moisture absorbing material W is increased, and the regeneration performance of the liquid moisture absorbing material W can be improved, which is the same effect as in the second embodiment.
  • the concentration detection unit 2115 by grasping the concentration of the liquid hygroscopic material W by using the concentration detection unit 215, not only the regenerated state of the liquid hygroscopic material W can be confirmed, but also the air discharged from the humidity control machine 20 into the room. Relative humidity can be grasped, and this can be used for humidity control. In addition, the number of humidity sensors required for humidity control can be reduced.
  • the liquid hygroscopic material supply unit W for supplying the undiluted liquid hygroscopic material W to the humidity control unit 21 may be provided in a separate system. For example, if it is necessary to suddenly switch from heating to cooling, it takes time to regenerate the diluted liquid hygroscopic material. Therefore, by separately preparing the undiluted concentrated liquid hygroscopic material W, it is possible to quickly respond to a sudden change of operation. As a result, the responsiveness of the air conditioner 1 is improved even when hot days and cold days change depending on the day, such as at the turn of the season.
  • the air conditioner 1 Since the air conditioner 1 stores data on the equilibrium relative humidity with respect to the concentration of the liquid hygroscopic material W, the current humidity is compared with the target humidity to instantly determine whether to dilute or concentrate the liquid hygroscopic material W. It is possible to judge and adjust the humidity according to the user's request.
  • water is supplied from the water supply unit 14 to the humidity control unit 21 to dilute the liquid moisture absorbing material W1 in the humidity control tank 211, but ultrasonic atomization is performed.
  • Water may be supplied to the regeneration unit 24 to dilute the liquid moisture absorbing material W2 in the atomization regeneration tank 241. As a result, the amount of atomization by ultrasonic waves can be increased.
  • One aspect of the present invention can be used for an air conditioner used for indoor air conditioning.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Central Air Conditioning (AREA)
  • Drying Of Gases (AREA)

Abstract

Un dispositif de climatisation de la présente invention comprend : une unité de réglage d'humidité qui provoque un contact, dans un dispositif de réglage d'humidité, entre l'air fourni par un climatiseur et un matériau hygroscopique liquide contenant une substance hygroscopique, pour ainsi absorber, dans le matériau hygroscopique liquide, l'humidité contenue dans l'air fourni par le climatiseur, ou pour fournir ainsi au moins une partie de l'humidité contenue dans le matériau hygroscopique liquide à l'air fourni par le climatiseur ; une unité d'atomisation/régénération ultrasonore qui irradie le matériau hygroscopique liquide avec des ondes ultrasonores pour produire des gouttelettes atomisées et régénérer le matériau hygroscopique liquide ; une unité d'alimentation en eau qui fournit de l'eau, pour diluer le matériau hygroscopique liquide, à au moins l'une de l'unité de réglage d'humidité et de l'unité d'atomisation/régénération ultrasonore ; et un trajet d'écoulement de circulation qui fait circuler le matériau hygroscopique liquide entre au moins l'unité de réglage d'humidité et l'unité d'atomisation/régénération ultrasonore. L'air dans lequel l'humidité a été ajustée est évacué à l'intérieur d'une pièce, et une unité de commande de dispositif de réglage d'humidité commande la concentration du matériau hygroscopique liquide, et commande le temps d'irradiation et la sortie des ondes ultrasonores irradiées sur le matériau hygroscopique liquide.
PCT/JP2020/015968 2019-04-24 2020-04-09 Dispositif de climatisation WO2020218012A1 (fr)

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JP2019082760A JP2022092072A (ja) 2019-04-24 2019-04-24 空調装置

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010013033A (ja) * 2008-07-04 2010-01-21 Dyna-Air Co Ltd 乗物用調湿装置
WO2018142782A1 (fr) * 2017-02-03 2018-08-09 株式会社テクノ菱和 Dispositif de traitement d'air, dispositif de commande de dispositif de traitement d'air, et procédé de commande de système de traitement d'air et de dispositif de traitement d'air
WO2018235773A1 (fr) * 2017-06-20 2018-12-27 シャープ株式会社 Dispositif de conditionnement d'humidité et procédé de conditionnement d'humidité

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010013033A (ja) * 2008-07-04 2010-01-21 Dyna-Air Co Ltd 乗物用調湿装置
WO2018142782A1 (fr) * 2017-02-03 2018-08-09 株式会社テクノ菱和 Dispositif de traitement d'air, dispositif de commande de dispositif de traitement d'air, et procédé de commande de système de traitement d'air et de dispositif de traitement d'air
WO2018235773A1 (fr) * 2017-06-20 2018-12-27 シャープ株式会社 Dispositif de conditionnement d'humidité et procédé de conditionnement d'humidité

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