WO2018142782A1 - 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 - Google Patents

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 Download PDF

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Publication number
WO2018142782A1
WO2018142782A1 PCT/JP2017/044909 JP2017044909W WO2018142782A1 WO 2018142782 A1 WO2018142782 A1 WO 2018142782A1 JP 2017044909 W JP2017044909 W JP 2017044909W WO 2018142782 A1 WO2018142782 A1 WO 2018142782A1
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Prior art keywords
air
humidity
unit
temperature
air treatment
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PCT/JP2017/044909
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English (en)
Japanese (ja)
Inventor
海老根　猛
Original Assignee
株式会社テクノ菱和
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Application filed by 株式会社テクノ菱和 filed Critical 株式会社テクノ菱和
Priority to CN201780085245.0A priority Critical patent/CN110249185A/zh
Publication of WO2018142782A1 publication Critical patent/WO2018142782A1/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
    • B01D53/14—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 by absorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • 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
    • F24F3/147—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 with both heat and humidity transfer between supplied and exhausted air

Definitions

  • the present invention relates to an air treatment device that mainly adjusts the humidity of air using a moisture absorbing / releasing solution, a control device for the air treatment device, and a control method.
  • the outside air treatment system installed in the building exhausts the return air whose CO 2 concentration has been increased by the exhalation of people to the outside, and introduces outside air, that is, outside air, so that the CO 2 concentration in the building is within a certain range. Keep in.
  • the outside air is heated, cooled, humidified and dehumidified according to the temperature and humidity of the outside air to maintain human comfort inside the building.
  • a humidity control system that performs dehumidification or humidification by bringing outside air into contact with a moisture absorbing / releasing solution such as a lithium chloride solution has been proposed (see Patent Document 1).
  • a humidity control system when dehumidification is performed, air is dehumidified and cooled by taking in air in a processing machine and bringing it into contact with a high concentration, large amount, and low temperature moisture absorbing / releasing solution. Supply to space.
  • the moisture absorbing / releasing solution absorbs the dehumidified moisture, is diluted, heated by the regenerator, concentrated, and returned to the processor again for dehumidification.
  • the processing machine itself is comprised as a heat exchange coil of a heat pump, and by this heat exchange coil, the moisture absorption / release solution and the air dehumidified by this are cooled, the rise in temperature is suppressed. Yes.
  • the entire amount of dehumidified moisture in the outside air is absorbed in the moisture absorbing / releasing solution and re-evaporated in the regenerating part, resulting in a decrease in the overall energy efficiency.
  • an object of the present invention is to provide a durable air treatment device, a control device for the air treatment device, an air treatment system, and a control method for the air treatment device that can be reduced in size and price.
  • an air processing apparatus of the present invention is installed in the air supply space for supplying air to be processed to the air-conditioned space, and the specific enthalpy of the air. And a gas-liquid contact that is installed downstream of the temperature control unit in the air supply path and that is supplied and circulated with a moisture absorption / release solution.
  • a humidity control unit that adjusts the humidity of the air by passing the air whose temperature is adjusted by the temperature control unit, and the moisture absorption / release solution so that the air has a set humidity
  • the temperature control unit is provided in the cooling coil that cools the air by heat exchange with the heat medium, the heating coil that heats the air by heat exchange with the heat medium, and the cooling coil. And a discharge part for discharging the water generated by.
  • the moisture absorbing / releasing solution in the air treatment unit may be non-circulated.
  • a liquid that absorbs carbon dioxide may be included in the moisture absorption / release solution supplied to the humidity control unit and regenerated by the regeneration unit.
  • the control device of the air treatment device of the present invention may be configured such that the specific enthalpy becomes a predetermined value based on a temperature detected by a temperature sensor provided downstream of the humidity control unit of the air treatment device.
  • the humidity control unit to determine the set humidity based on humidity detected by a temperature determination unit that determines the temperature of the temperature control unit and a humidity sensor provided downstream of the humidity control unit of the air treatment device.
  • a humidity determining unit that determines the humidity of the part, and a concentration determining unit that determines the concentration of the moisture absorbing / releasing solution.
  • the difference between the humidity detected by the upstream humidity sensor provided upstream of the humidity control unit of the air treatment device and the humidity detected by the humidity sensor provided downstream of the humidity control unit is obtained.
  • a concentration calculation unit may be included, and the concentration determination unit may determine the concentration of the moisture absorbing / releasing solution according to the difference in humidity obtained by the difference calculation unit.
  • the air treatment system of the present invention includes the air treatment device and the control device.
  • the specific enthalpy of the air is based on a temperature detected by a temperature sensor provided by a computer or an electronic circuit downstream of the humidity control unit of the air treatment device. Is set based on a temperature determination process for determining the temperature of the temperature control unit and a humidity detected by a humidity sensor provided downstream of the humidity control unit of the air treatment device so that the temperature becomes a predetermined value. Then, a humidity determination process for determining the humidity of the humidity control unit and a concentration determination process for determining the concentration of the moisture absorbing / releasing solution are executed.
  • a small and low concentration moisture absorbing / releasing solution is used throughout the year to realize efficient moisture absorption / desorption, thereby enabling downsizing and cost reduction, and a durable air treatment device. It is possible to provide a control device for an air treatment device, an air treatment system, and a control method for the air treatment device.
  • the air treatment system adjusts and controls the temperature and humidity of outside air introduced into a space (hereinafter referred to as “air-conditioned space”) R in a building in this embodiment. That is, the air to be processed in the present embodiment is outside air.
  • air-conditioned space R an indoor air conditioner A for sensible heat treatment or a radiation air-conditioning panel is installed, and the heating and cooling of the air-conditioned space R with respect to the sensible heat load are appropriately performed.
  • the air treatment system includes an air treatment device 10 and a control device 90.
  • the air treatment device 10 includes an air supply path 100 and an exhaust path 200 connected to the air-conditioned space R.
  • the air supply path 100 is a flow path for supplying outside air to the air-conditioned space R as indicated by a thin solid line connecting the outside air port 101 to the air supply port 102 in the drawing.
  • the air supply path 100 of this embodiment is a duct, and one end is connected to the outdoor air outlet 101 and the other end is connected to the air inlet 102 of the air-conditioned space R.
  • the outside air port 101 side of the air supply path 100 will be described as upstream and the air supply port 102 side will be described as downstream.
  • the exhaust path 200 is a path for exhausting the return air introduced from the air-conditioned space R.
  • the exhaust path 200 of the present embodiment is a duct, and one end is connected to the indoor exhaust port 103 of the air-conditioned space R and the other end is connected to the outdoor exhaust port 104.
  • Fans 106 and 107 for controlling the flow rate are installed in the air supply path 100 and the exhaust path 200, respectively.
  • a temperature sensor T for measuring the temperature of the outside air supplied to the conditioned space R and a humidity sensor H for measuring the humidity of the outside air supplied to the conditioned space R are provided in the air supply path 100 downstream of the humidity control unit 23. is set up. These sensors are connected to a control device 90 described later.
  • the temperature sensor T and the humidity sensor H may be arranged in the air supply port 102 or in the air-conditioned space R.
  • the air treatment device 1 has an air treatment unit 2 and a regeneration unit 3.
  • the configuration of each unit will be described.
  • the air processing unit 2 is a processing machine that is provided in the air supply path 100 and performs temperature control and humidity control of the air-conditioned space R using a moisture absorption / release solution. Although not shown, a plurality of air treatment units 2 are provided corresponding to the plurality of conditioned spaces R. The air treatment unit 2 may be installed one-on-one with the regeneration unit 3. Each air treatment unit 2 includes a temperature control unit 20 and a humidity control unit 23.
  • the temperature adjustment unit 20 is a device that is installed in the air supply path 100 and adjusts the temperature of the outside air so that the specific enthalpy of the outside air becomes a predetermined value.
  • the temperature control unit 20 of the present embodiment adjusts the temperature of the outside air by heat exchange with the heat medium.
  • the temperature adjustment unit 20 includes, for example, a cooling coil 21 and a heating coil 22.
  • the cooling coil 21 is a device that cools outside air using cold water as a heat medium.
  • the heating coil 22 is a device that heats the outside air using hot water as a heat medium.
  • Cold water and hot water are supplied from a cold / hot water supply device 70 described later.
  • Cold water from the cold / hot water supply device 70 is circulated and supplied to the cooling coil 21 via the pipes 21a and 21b.
  • a valve 21 c is provided in the piping 21 a on the supply side to the cooling coil 21.
  • the valve 21 c constitutes a first heat medium adjusting unit that adjusts the flow rate of the heat medium supplied to the cooling coil 21.
  • the cooling coil 21 is provided with a discharge part 21d.
  • the discharge unit 21d discharges moisture generated by the cooling by the cooling coil 21. In other words, for example, during cooling with a large dehumidification load in summer, dehumidification is performed by condensation on the cooling coil 21 as the outside air temperature is adjusted so that the specific enthalpy of the outside air becomes a predetermined value. Moisture is discharged by the discharge portion 21d.
  • the discharge part 21d has a drain pan and a drain pipe, and the moisture dripped onto the drain pan from the cooling coil 21 is discharged to the outside through a drain pipe and a system different from the moisture absorbing / releasing solution system.
  • Hot water from the cold / hot water supply device 70 is circulated and supplied to the heating coil 22 via the pipes 22a and 22b.
  • a valve 22 c is provided on the supply-side piping 22 a to the heating coil 22.
  • the valve 22 c constitutes a second heat medium adjusting unit that adjusts the flow rate of the heat medium supplied to the heating coil 22.
  • the cold / hot water supply device 70 includes a cold water supply unit 71 and a hot water supply unit 72.
  • a cold / hot water supply device 70 for example, an air-cooled heat pump that can cool water in the cold water supply unit 71 and heat water in the hot water supply unit 72 by using the heat of vaporization and condensation of refrigerant using air as a heat source. Is used.
  • the cold water supply side pipe 73 of the cold water supply unit 71 is connected to the pipe 21a, and the cold water return side pipe 74 is connected to the pipe 21b.
  • the cold water from the cold water supply unit 71 is supplied to the cooling coil 21 via the pipe 73 and the pipe 21a.
  • the outside air is cooled by passing through the cooling coil 21 through which cold water flows.
  • the cold water that has passed through the cooling coil 21 returns to the cold water supply unit 71 via the pipe 21 b and the pipe 74.
  • the pipe 74 is provided with a water pump 74a.
  • the flow rate of the cold water supplied to the cooling coil 21 is adjusted by adjusting the opening degree of the valve 21c, and as a result, the cooling temperature of the outside air is adjusted.
  • the hot water supply side pipe 75 of the hot water supply unit 72 is connected to the pipe 22a, and the return side pipe 76 is connected to the pipe 22b.
  • Hot water from the hot water supply unit 72 is supplied to the heating coil 22 via the pipe 75 and the pipe 22a.
  • the outside air is heated by passing through the heating coil 22 through which hot water flows.
  • the hot water or steam condensate that has passed through the heating coil 22 returns to the hot water supply unit 72 via the pipe 22 b and the pipe 76.
  • the pipe 76 is provided with a pump 76a for water supply.
  • valves 77 and 78 constitute a first switching unit that switches whether to supply cold water or hot water to the heat exchanger 82. That is, the first switching unit switches whether the moisture absorption / release solution supplied to the air processing unit 2 is cooled or heated by the heat exchanger 82.
  • the humidity control unit 23 is installed on the downstream side of the temperature control unit 20 and has a gas-liquid contact member through which a moisture absorption / release solution is supplied and circulated.
  • the temperature is adjusted by the temperature control unit 20 and a predetermined specific enthalpy and It is a device that adjusts the humidity of the outside air by passing the outside air.
  • the humidity control unit 23 of the present embodiment uses a film 23a as a gas-liquid contact member.
  • the film 23a is, for example, a vaporization type humidification film having a gas-liquid contact area sufficient for dehumidification and humidification by forming a plurality of sheets with a gap and forming a bowl-shaped ridge.
  • a lithium chloride aqueous solution which is a moisture absorption / release solution, circulates in the film 23a between the regeneration unit 3 described later.
  • the supply path 4 that is connected to the regenerating unit 3 and supplies the moisture absorbing / releasing solution to the humidity control unit 23 branches to the humidity control unit 23 in each air treatment unit 2.
  • the supply path 4 is provided with a pump 41 for feeding liquid.
  • a valve 42 is provided in the supply path 4 branched to each air treatment unit 2.
  • the valve 42 is a liquid amount adjusting unit that adjusts the amount of the moisture absorbing / releasing solution supplied to each humidity adjusting unit 23. That is, the flow rate of the moisture absorbing / releasing solution is adjusted by adjusting the opening degree of the valve 42, and as a result, the humidity of the outside air is adjusted.
  • each humidity control unit 23 the moisture absorbing / releasing solution from the supply path 4 is configured to be dripped through the spray unit 23b provided on the upper part of the film 23a.
  • the moisture absorbing / releasing solution dropped from the spray part 23b flows from the upper part to the lower part of the film 23a.
  • the outside air cooled in the temperature adjustment unit 20 passes through the humidity adjustment unit 23 and is dehumidified in contact with the moisture absorption / release solution.
  • the outside air heated in the temperature adjustment unit 20 passes through the humidity adjustment unit 23 and comes into contact with the moisture absorbing / releasing solution to be humidified.
  • a liquid receiving portion 23c that receives the moisture absorbing / releasing solution dropped from the film 23a is provided below the film 23a.
  • the moisture absorption / release solution that has fallen into the liquid receiving portion 23 c joins the tank 6 through the return path 5.
  • the return path 5 here is a natural return path through which the moisture absorbing / releasing solution flows into the tank 6 by gravity.
  • the tank 6 is a container in which the moisture absorbing / releasing solutions from the humidity control units 23 merge and are temporarily stored.
  • a return path 5 from the tank 6 toward the regeneration unit 3 is provided with a pump 51 that returns the moisture absorption / release solution stored in the tank 6 to the regeneration unit 3.
  • the moisture absorbing / releasing solution that has dropped from the film 23 a to the liquid receiving portion 23 c returns to the regenerating portion 3 via the tank 6 and the return path 5.
  • the return path 5 is a power return path through which the moisture absorbing / releasing solution in the tank 6 is sent out by the pump 51 and flows into the humidity control section 23.
  • the moisture absorption / release solution in the air treatment unit 2 is not circulated. That is, the moisture absorbing / releasing solution supplied from the supply path 4 to the membrane 23a is discharged to the return path 5 without being returned to the film 23a in the air processing unit 2, and is supplied from the regeneration unit 3 via the supply path 4 Come back to the membrane 23a.
  • the regeneration unit 3 is a processor that is connected to the supply path 4 and regenerates the concentration of the moisture absorption / release solution so that the set humidity is maintained.
  • the regeneration unit 3 includes a heating unit 31 and a concentrating unit 32 disposed in a flow path indicated by a thin solid arrow that passes from an outside air port 33 through which outside air is taken in to an exhaust port 34 that discharges outside air in the drawing. .
  • the heating unit 31 is a device that is installed on the downstream side of the outside air port 33 and heats the outside air by heat exchange with the heat medium.
  • the heating unit 31 is a coil that heats the outside air using hot water from the hot water supply unit 72 of the cold / hot water supply device 70 as a heat medium.
  • the hot water from the hot water supply unit 72 is circulated and supplied to the heating unit 31 via the pipe 35 and the pipe 36.
  • the pipe 35 is connected to a pipe 75 on the supply side of the hot water supply unit 72.
  • the pipe 36 is connected to a return pipe 76 of the hot water supply unit 72.
  • the outside air is heated by passing through the heating unit 31 through which hot water flows.
  • the hot water that has passed through the heating unit 31 returns to the hot water supply unit 72 via the pipe 36 and the pipe 76.
  • the pipe 35 is provided with a valve 35a.
  • the valve 35 a constitutes a third heat medium adjusting unit that adjusts the flow rate of the hot water supplied to the heating unit 31. That is, the flow rate of the hot water is adjusted by adjusting the opening degree of the valve 35a, and as a result, the heating temperature of the outside air is adjusted.
  • the concentration unit 32 has a membrane 32a that is supplied and circulated with the moisture absorption / release solution from the air processing unit 2, and concentrates the moisture absorption / release solution by vaporizing moisture from the moisture absorption / release solution flowing through the membrane 32a. To do.
  • the concentrating unit 32 is installed on the downstream side of the heating unit 31, and expels moisture from the moisture absorbing / releasing solution by allowing the outside air heated by the heating unit 31 to pass therethrough.
  • a plurality of the films 32a are arranged with a gap between them, and have a sufficient gas-liquid contact area by forming a bowl-shaped bag, for example, a vaporization type It is a humidified film.
  • a lithium chloride aqueous solution which is a moisture absorbing / releasing solution, circulates in the film 32 a between the humidity control unit 23.
  • the moisture absorbing / releasing solution absorbed in the humidity control unit 23 of each air treatment unit 2 is collected in the tank 6 and dropped from the spray unit 32b provided on the upper portion of the film 32a via the return path 5. It is configured.
  • the moisture absorbing / releasing solution dropped from the spray part 32b flows from the upper part to the lower part of the film 32a.
  • the outside air heated in the heating unit 31 passes through the concentration unit 32 and comes into contact with the moisture absorbing / releasing solution to be humidified. As a result, the moisture absorbing / releasing solution is concentrated with reduced water content.
  • the liquid storage part 32c which is a container in which the moisture absorption / release solution which fell from the film
  • the liquid storage unit 32c is provided with a concentration sensor C that measures the concentration of the moisture absorption / release solution.
  • a diluting part 321 for diluting the moisture absorbing / releasing solution with water is connected to the liquid storing part 32c.
  • the dilution unit 321 has a water supply pipe 321a connected to a water supply source (not shown).
  • a valve 321b is provided in the water supply pipe 321a.
  • the valve 321b is a water amount adjustment unit that adjusts the water supply amount of the dilution unit 321. That is, the amount of water for diluting the moisture absorbing / releasing solution is adjusted by adjusting the opening of the valve 321b. Thereby, the density
  • the supply path 4 is connected to the liquid storage part 32c, and the moisture absorption / release solution whose concentration is adjusted in the liquid storage part 32c is branched and supplied to the humidity control part 23 of each air treatment part 2.
  • a valve 53 and a bypass unit 54 are provided in the return path 5 connected to the spray unit 32b.
  • the valve 53 switches whether or not the moisture absorbing / releasing solution is dropped onto the membrane 32a.
  • the bypass unit 54 includes a pipe 54a and a valve 54b.
  • the pipe 54a branches off from the return path 5 before the valve 53 and is connected to the liquid storage part 32c.
  • the valve 54b is provided in the pipe 54a and switches the presence / absence of the inflow / absorption of the moisture absorbing / releasing solution to the liquid storage part 32c.
  • Valves 53 and 54b constitute a second switching unit that switches the return destination of the moisture absorption / release solution from the return path 5 from the membrane 32a to the liquid storage unit 32c when the humidity control unit 23 performs humidification. That is, by closing the valve 53 and opening the valve 54b, the moisture absorbing / releasing solution can be supplied to the liquid storage part 32c without passing through the membrane 32a.
  • the moisture absorption / release solution in the regeneration unit 3 is not circulated in the steady operation. That is, the moisture absorbing / releasing solution supplied from the return path 5 to the membrane 32a is supplied to the supply path 4 without being returned to the membrane 32a in the regeneration unit 3, and is supplied from the humidity control unit 23 via the return path 5. Come back to the membrane 32a.
  • the regeneration unit 3 also has a reflux path for circulating the moisture absorbing / releasing solution.
  • This reflux path has a pipe 43 branched from the supply path 4 and connected to the return path 5 in front of the liquid dispersion part 32b.
  • the pipe 43 increases the concentration by circulating moisture absorbing / releasing solution and releasing moisture by heating at the time of changing from the humidifying mode to the dehumidifying mode, or at the start of operation after stopping for a certain time in the dehumidifying operation timing. It becomes a bypass.
  • the pipe 43 is provided with a valve 43a, and the supply path 4 is provided with a valve 43b.
  • the valves 43 a and 43 b are a third switching unit that switches whether or not the moisture absorption / release solution is circulated through the pipe 43.
  • a heat exchanger 82 is provided in the supply path 4.
  • the pipe 75 is provided with a valve 75a for switching whether to supply hot water or cold water to the heat exchanger 82.
  • the water supplied to the heat exchanger 82 is switched to cold water when dehumidifying with the moisture absorbing / releasing solution, and hot water when humidifying. This is done by switching the valve 77 and valve 78.
  • the moisture absorbing / releasing solution is cooled to dehumidify substantially on the isoenthalpy line, and the air state toward the temperature rising direction is lower than on the isoenthalpy line, that is, dehumidifying without increasing the temperature.
  • the heating temperature in the regeneration unit 3 that is, the temperature of the heating source can be lowered, and the heat source can be selected more widely.
  • the heat exchanger 83 is not necessarily required and may be omitted.
  • the air treatment system of the present embodiment switches between the dehumidifying mode and the humidifying mode according to the set humidity.
  • the dehumidifying mode the outside air is cooled or heated and then dehumidified.
  • the regeneration unit 3 the outside air heated by the heating unit 31 is brought into contact with the moisture absorption / release solution in the concentration unit 32, so that moisture is expelled from the moisture absorption / release solution and concentrated.
  • the concentrated moisture absorbing / releasing solution falls to the liquid storage part 32 c and is supplied to the humidity control part 23.
  • the outside air is heated or cooled and then humidified.
  • the heating of the outside air is not performed by the heating unit 31, and the valve 53 is closed to stop the dripping of the moisture absorbing / releasing solution on the membrane 32a.
  • the valve 54b of the bypass unit 54 is opened, and the moisture absorption / release solution from the humidity control unit 23 is returned to the liquid storage unit 32c without passing through the membrane 32a.
  • the concentration unit 32 does not concentrate the moisture absorption / release solution, but supplies water to the humidity control unit 23 by supplying water from the dilution unit 321 to supplement the moisture reduced by the humidification.
  • cooling and dehumidification for cooling and dehumidification can be performed according to the state of the outside air. .
  • the air treatment system also includes a control device 90.
  • the control device 90 includes a computer that includes a CPU and a memory and is operated by a predetermined program, and a dedicated electronic circuit, to which the input unit I and output unit O shown in FIG. 2 are connected.
  • a control device 90 described below and a method of controlling the air treatment device 10 by the control device 90 are also one aspect of the present invention.
  • the control device 90 is connected to the temperature sensor T, the humidity sensor H, and the concentration sensor C.
  • the control device 90 uses the measurement results of the temperature sensor T and the humidity sensor H to control each part of the air treatment device 10 so that the outside air supplied to the air-conditioned space R has a set temperature and a set humidity.
  • the control device 90 has the functional configuration shown in FIG. That is, the control device 90 includes a storage unit 91, an instruction signal output unit 92, a mode selection unit 93, a temperature determination unit 94, a humidity determination unit 95, and a concentration determination unit 96.
  • the storage unit 91 stores data necessary for controlling each unit of the air treatment device 10. As such data, for example, a set temperature, a set humidity, a set concentration, a predetermined specific enthalpy as a target, and an arithmetic expression for obtaining a temperature having a specific specific enthalpy from a specific humidity, threshold values for various determination processes, Stores tables, etc.
  • the administrator of the air-conditioned space R can input desired values via the input unit I in advance for the set temperature, set humidity, set concentration, predetermined specific enthalpy, and the like.
  • Various set values and predetermined values stored in the storage unit 91 as desired values may be preset according to the season, or measurement results of the temperature sensor T, the humidity sensor H, and the concentration sensor C. From the above, it may be determined according to a predetermined algorithm.
  • the storage unit 91 temporarily stores measurement results received from the temperature sensor T, the humidity sensor H, and the concentration sensor C.
  • the instruction signal output unit 92 outputs an instruction signal for controlling the mechanism of each part of the air treatment device 10.
  • the instruction signal output unit 92 outputs an instruction signal based on the processing results of the mode selection unit 93, the temperature determination unit 94, the humidity determination unit 95, and the concentration determination unit 96.
  • the mode selection unit 93 selects whether the air treatment device 10 is operated in the dehumidifying mode or the humidifying mode according to the humidity of the air-conditioned space R measured by the humidity sensor H. As a specific aspect of the selection, for example, the measured humidity is compared with a predetermined threshold stored in the storage unit 91, and if it is equal to or lower than the threshold, the humidification mode is selected, and if the threshold is exceeded, the dehumidification mode is selected. .
  • the mode selection unit 93 may select whether to use the dehumidifying mode or the humidifying mode according to the input from the input unit I.
  • the valve 78 is closed and the valve 77 is opened among the valve 77 and the valve 78 as the first switching unit according to the instruction signal output from the instruction signal output unit 92.
  • the valve 35a is opened, the hot water from the hot water supply unit 72 is supplied to the heating unit 31, and the heated outside air passes through the film 32a of the humidity control unit 23.
  • the valve 53 is opened and the valve 54b is closed among the valves 53 and 54b as the second switching unit, whereby the moisture absorption / release solution in the return path 5 is formed into a film. It is dripped at 32a.
  • the moisture absorbing / releasing solution is supplied via the pipe 43 by opening the valve 43a as the third switching unit and closing the valve 43b. It is assumed that concentration is performed to a predetermined concentration by circulation and contact with heated outside air, and then the valve 43a is closed and the valve 43b is opened to shift to a dehumidifying operation.
  • the valve 77 is closed among the valve 77 and the valve 78 as the first switching unit according to the instruction signal output from the instruction signal output unit 92. 78 opens. Then, the supply of hot water to the heating unit 31 is stopped by closing the valve 35a. Further, according to the instruction signal output from the instruction signal output unit 92, the hygroscopic solution is dropped onto the membrane 32a by closing the valve 53 and opening the valve 54b among the valves 53 and 54b as the second switching unit. Instead, the liquid is directly supplied to the liquid storage section 32c. That is, the concentration unit 32 does not function, and only dilution by the dilution unit 321 is performed.
  • the temperature determining unit 94 is a temperature of cooling or heating by the temperature adjusting unit 20 so that a predetermined specific enthalpy can be achieved at the humidity. To decide. That is, the temperature is increased or decreased so that the specific enthalpy obtained from the measured temperature and humidity becomes a desired value.
  • the valve 21c of the temperature adjustment unit 20 is opened according to the instruction signal output from the instruction signal output unit 92, and the cold water from the cold water supply unit 71 is supplied to the cooling coil 21. Further, when heating is performed in the dehumidifying mode or the humidifying mode, the valve 22a of the temperature adjustment unit 20 is opened according to the instruction signal output from the instruction signal output unit 92, and hot water from the hot water supply unit 72 is supplied to the heating coil 22. Is done.
  • the specific enthalpy h [kJ / kg ′] can be obtained from the temperature t [° C.] and the humidity x [kg / kg ′] by the following formula 1.
  • the temperature t is the dry bulb temperature
  • the humidity x is absolute humidity.
  • h 1.006t + (1.86t + 2501) x
  • the temperature for obtaining the desired specific enthalpy h can be determined according to the current humidity measured by the humidity sensor H. Since the current temperature is measured by the temperature sensor T, it is determined how much the temperature is raised or lowered to obtain the desired specific enthalpy h.
  • Such a combination of set temperature and set humidity is prepared in advance in a table, one of the temperatures is selected according to the humidity, and how much the temperature should be increased or decreased to reach that temperature. You may make it ask.
  • the temperature determination unit 94 determines the cooling temperature by the cooling coil 21 so that the outside air is cooled until the specific enthalpy of the outside air reaches a predetermined value. Since the instruction signal output unit 92 outputs an instruction signal according to the cooling temperature determined by the temperature determination unit 94, the valve 21c, which is the first heat medium adjustment unit, adjusts the opening, and the flow rate of the cold water in the cooling coil 21 is Adjusted.
  • the temperature determining unit 94 determines the heating temperature of the heating coil 22 so that the outside air is heated until the specific enthalpy of the outside air reaches a predetermined value. Since the instruction signal output unit 92 outputs an instruction signal according to the heating temperature determined by the temperature determination unit 94, the valve 22a, which is the second heat medium adjusting unit, adjusts the opening, and the flow rate of the hot water in the heating coil 21 is adjusted. adjust.
  • the humidity determination unit 95 determines the amount of dehumidification or humidification by the humidity control unit 23 so that the humidity of the outside air becomes a set value based on the humidity measured by the humidity sensor H.
  • the instruction signal output unit 92 outputs an instruction signal, so that the valve 42, which is a liquid amount adjustment unit, adjusts the opening degree of the moisture absorbing / releasing solution to the film 23a. The dripping amount is adjusted.
  • the concentration determination unit 96 determines the concentration of the moisture absorbing / releasing solution so that the moisture absorbing / releasing solution is dehumidified or humidified according to the dehumidifying mode or the humidifying mode. That is, the concentration is increased or decreased so that the measured concentration of the moisture absorbing / releasing solution becomes a set value. Thereby, the set temperature and humidity are maintained by adjusting the humidity of the outside air whose temperature adjustment unit 20 has a predetermined specific enthalpy.
  • the concentration determining unit 96 cools the outside air by the temperature adjusting unit 20 and then sets the maximum amount of the moisture absorbing / releasing solution to the humidity adjusting unit 23.
  • the concentration of the moisture absorbing / releasing solution is determined so that it can be dehumidified to the set humidity.
  • the instruction signal output unit 92 outputs an instruction signal. Therefore, the valve 35a, which is the third heat medium adjustment unit, adjusts the opening, and the flow rate of the hot water in the heating unit 31 is adjusted.
  • the concentration of the moisture absorbing / releasing solution is adjusted.
  • the concentration determination unit 96 determines the concentration of the moisture absorbing / releasing solution so that the moisture can be humidified up to the set humidity at the maximum amount of the moisture absorbing / releasing solution set to the humidity adjusting unit 23. To do. According to the concentration determined by the concentration determination unit 96, the instruction signal output unit 92 outputs an instruction signal, so that the valve 321b, which is a water amount adjustment unit, adjusts the opening, and the amount of water supplied to the liquid storage unit 32c is adjusted. In the humidification mode, the concentration unit 32 does not function as described above.
  • the concentration of the moisture absorbing / releasing solution is measured by the concentration sensor C.
  • the concentration determination unit 96 increases or decreases the measured concentration so that the concentration measured by the concentration sensor C becomes the set concentration in the dehumidifying mode or the humidifying mode.
  • correlation data between the humidity of the outside air supplied to the air-conditioned space R and the concentration of the moisture absorbing / releasing solution is created by performing a test or the like in advance and stored in the storage unit 91. Based on this correlation data, the concentration of the moisture absorbing / releasing solution according to the desired humidity may be determined.
  • FIGS. 3 and 4 show a state in which cold water is supplied to the cooling coil 21 and a state in which hot water is supplied to the heating coil 22.
  • the set values (SP) are a dry bulb temperature of 22 ° C., a relative humidity of 40%, an absolute humidity of 6.6 g / kg ′, a specific enthalpy of 38.8 kJ / kg ′, and a dew point temperature of 7.8 ° C.
  • the point [4] is when there is no heat exchanger 82, and the point [4 '] is when cooling by the heat exchanger 82 is performed.
  • the point [5] is the outside air inlet of the regeneration unit 3
  • the point [6] is the point that has passed through the heating unit 31
  • the point [7] is the point that has passed through the concentration unit 32.
  • Points [6] and [7] are when the heat exchanger 82 is not provided, and points [6 '] and [7'] are when the heat exchanger 82 performs cooling.
  • the numbers described at each point are (dry bulb temperature [° C.] / Relative humidity [%] / absolute humidity [g / kg ′] / specific enthalpy [kJ / kg ′], dew point temperature [° C.]).
  • High temperature and high humidity outside air is introduced into the air supply path 100 from the outside air port 101 ([1] point: 33/62 / 19.8 / 83.9 / 24.7).
  • the outside air has a predetermined specific enthalpy by being cooled by the cooling coil 21 of the temperature control unit 20 ([2] point: 14.3 / 95 / 9.7 / 38.8 / 13.6).
  • the humidity adjustment unit 23 is dehumidified by the humidity adjustment unit 23 to become SP ([4] point: 22/40 / 6.6 / 38.8 / 7.8) and supplied to the air-conditioned space R from the air supply port 102.
  • the cooling coil 21 performs dehumidification to obtain a predetermined specific enthalpy (38.8 kJ / kg ′).
  • the amount of cooling heat to be included and the amount of dehumidification (1), and the amount of dehumidification (2) for setting the humidity value set by the humidity control unit 23 are as follows.
  • Heat of cooling: 83.9-38.8 45.1 kJ / kg ′
  • Dehumidification amount (1): 19.8 ⁇ 9.7 10.1 g / kg ′
  • Dehumidification amount (2): 9.7-6.6 3.1 g / kg ′
  • LiCl which is a moisture absorbing / releasing solution
  • g ′ 0.0125 (L / G) with respect to the outside air amount and the concentration is 40 wt%
  • the concentration change of LiCl is reduced.
  • the case where the heat dehumidifying operation is required is, for example, a case where the specific enthalpy of the outside air is lower than SP and the absolute humidity is higher than SP, as indicated by [1 ′] in FIG.
  • the temperature adjustment unit 20 heats the outside air ([1 ′] point ⁇ [3] point), and the humidity adjustment unit 23 dehumidifies the outside air ([3] point ⁇ [4] point). .
  • the outside air is heated by the heating unit 31 ([5] point ⁇ [6] point), and the moisture absorbing / releasing solution is concentrated by the concentrating unit 32 ([6] point ⁇ [7] point).
  • the moisture absorbing / releasing solution whose concentration has been adjusted by concentration is supplied to the humidity control unit 23 and used for dehumidification, and returns to the regeneration unit 3 ([A] point ⁇ [B] point).
  • the set values (SP) are the same as in the case of the cooling dehumidification, and the dry bulb temperature is 22 ° C., the relative humidity is 40%, the absolute humidity is 6.6 g / kg ′, the specific enthalpy is 38.8 kJ / kg ′, and the dew point temperature is 7.8.
  • [1 '], [3], and [4] in the air diagram of FIG. 5 correspond to points [1], [3], and [4] in FIG.
  • the numbers described at each point are (dry bulb temperature [° C.] / Relative humidity [%] / absolute humidity [g / kg ′] / specific enthalpy [kJ / kg ′], dew point temperature [° C.]).
  • the low temperature and high humidity outside air is introduced from the outside air port 101 to the air supply path 100 ([1 '] point: 14.0 / 80 / 8.0 / 34.2 / 10.6).
  • the outside air is heated by passing through the heating coil 22 of the temperature control unit 20 and has a predetermined specific enthalpy ([3] point: 18.4 / 60.8 / 8.0 / 38.8 / 10.7) It is dehumidified by the humidity control unit 23 ([4] point: 22/40 / 6.6 / 38.8 / 7.8) and supplied from the air supply port 102 to the air-conditioned space R.
  • the humidity control of the target processing air is controlled such that the amount of dripping is increased when the value by the humidity sensor H is higher than the set humidity, and the amount is reduced when the humidity is lower.
  • the setting and actual change of the air condition are changed to the set humidity after changing to a predetermined specific enthalpy.
  • the change to the set humidity is accompanied by a temperature change slightly different from that on the isoenthalpy line due to the heat of dissolution of the outside moisture of the moisture absorption / release solution, but is cooled by the temperature control unit 20 so as to finally converge to the set humidity. Heating is performed.
  • FIGS. FIG. 7 shows the air treatment unit 2 and the regeneration unit 3.
  • the flow of outside air indicates the supply air with a thick white arrow.
  • the flow of the hygroscopic solution is indicated by a thick solid line
  • the flow of hot water is indicated by a thick dotted line
  • the flow of dilution water is indicated by a two-dot chain line. 6 and 7, a state in which cold water is supplied to the cooling coil 21 and a state in which hot water is supplied to the heating coil 22 are shown.
  • any state is selected. Whether the outside air is cooled or heated is performed by switching between opening and closing of the valve 21c and the valve 22c.
  • the set values (SP) are a dry bulb temperature of 22 ° C., a relative humidity of 40%, an absolute humidity of 6.6 g / kg ′, a specific enthalpy of 38.8 kJ / kg ′, and a dew point temperature of 7.8 ° C.
  • [1], [3], [4] points in the air diagram of FIG. 8 correspond to [1], [3], [4] points in FIG. That is, the [1] point is the outside air inlet, the [2] point is the outlet of the cooling coil 21, the [3] point is the outlet of the temperature control unit 20 of the heating coil 22, and the [4] point is the outlet of the humidity control unit 23. .
  • the numbers described at each point are (dry bulb temperature [° C.] / Relative humidity [%] / absolute humidity [g / kg ′] / specific enthalpy [kJ / kg ′], dew point temperature [° C.]).
  • the low-temperature and low-humidity outside air is introduced from the outside air port 101 to the air supply path 100 ([1] point: 0/34 / 1.3 / 3.2 / -12.5).
  • the outside air is heated by the heating coil 22 of the temperature control unit 20 to have a predetermined specific enthalpy ([3] point: 35.3 / 3.7 / 1.3 / 38.8 / -12.5). ).
  • it is humidified by the humidity control section 23 ([4] point: 22/40 / 6.6 / 38.8 / 7.8) and supplied from the air supply opening 102 to the air-conditioned space R.
  • the amount of the moisture absorbing / releasing solution dropped is about twice the amount required for humidification to prevent dust and precipitation in water.
  • 5.3 g / kg ′ ⁇ 2 10.6 g / kg ′ is the dripping amount of only moisture.
  • cooling humidification is required
  • the case where cooling humidification is required is, for example, the case where the specific enthalpy of the outside air is higher than SP and the absolute humidity is lower than SP, as shown by [1 ′] in FIG.
  • the temperature adjustment unit 20 cools the outside air ([1] point ⁇ [2] point), and the humidity adjustment unit 23 humidifies the outside air ([2] point ⁇ [4] point).
  • the outside air is not heated by the heating unit 31, and the moisture absorption / release solution is not condensed by the concentration unit 32, but only the moisture absorption / release solution is diluted by the dilution unit 321.
  • the moisture absorbing / releasing solution whose concentration is adjusted by dilution is supplied to the humidity control unit 23 and used for humidification, and returns to the regeneration unit 3 ([A] point ⁇ [B] point).
  • the set values (SP) are a dry bulb temperature of 22 ° C., a relative humidity of 40%, an absolute humidity of 6.6 g / kg ′, a specific enthalpy of 38.8 kJ / kg ′, and a dew point temperature of 7.8 ° C.
  • [1 '], [2], and [4] in the air diagram of FIG. 8 correspond to points [1], [2], and [4] in FIG.
  • the numbers described at each point are (dry bulb temperature [° C.] / Relative humidity [%] / absolute humidity [g / kg ′] / specific enthalpy [kJ / kg ′], dew point temperature [° C.]).
  • High temperature and low humidity outside air is introduced from the outside air port 101 to the air supply path 100 ([1 '] point: 26/30 / 6.3 / 42.1 / 7.1).
  • the outside air is cooled by passing through the cooling coil 21 of the temperature control unit 20 and has a predetermined specific enthalpy ([2] point: 22.6 / 36.9 / 6.3 / 38.8 / 7.1), It is humidified by the humidity control unit 23 ([4] point: 22/40 / 6.6 / 38.8 / 7.8) and supplied from the air supply port 102 to the air-conditioned space R.
  • the humidity control of the target processing air is controlled such that when the measured value by the humidity sensor H becomes higher than the set humidity, the dropping amount is reduced, and when the measured value becomes lower, the dropping amount is increased. .
  • the temperature control unit 20 is on the upstream side and the humidity control unit 23 is on the downstream side, the setting and actual change of the air condition are changed to the set humidity after the change to the predetermined specific enthalpy. It becomes a change.
  • the change to the set humidity is accompanied by a temperature change slightly different from that on the isoenthalpy line, cooling and heating are performed by the temperature adjustment unit 20 so as to finally converge to the set humidity.
  • the dehumidification of the outside air includes dehumidification when being cooled by the cooling coil 21 and dehumidification by the moisture absorbing / releasing solution of the humidity control unit 23. Made in stages.
  • the moisture dehumidified by the cooling coil 21 is discharged as it is by the discharge unit 21d, and only the moisture dehumidified by the moisture absorbing / releasing solution in the humidity adjusting unit 23 is vaporized and evaporated by heating the moisture absorbing / releasing solution.
  • 10.1 g / kg ′ can be discharged by the discharge unit 21d out of 13.2 g / kg ′ of moisture to be dehumidified from the target processing air. That is, 77% of the moisture to be discharged can be discharged to the outside as it is.
  • Patent Document 1 when the heat exchange coil and the solution regenerator for the moisture absorbing / releasing solution are integrated, it is necessary to vaporize and evaporate all the moisture to be dehumidified by the solution regenerator. . That is, energy for vaporizing and evaporating 13.2 g / kg ′ of the total amount of water to be dehumidified is required.
  • the amount of dehumidification by the moisture absorbing / releasing solution is preferably within 3 g / kg ′, and at most 4 g / kg ′ from the viewpoint of performance matching including the size of the vaporizing humidifier.
  • the air treatment apparatus 10 of the present embodiment is installed in the air supply path 100 for supplying outside air, which is air to be processed, to the air-conditioned space R, and the specific enthalpy of the outside air is predetermined.
  • a temperature adjustment unit 20 that adjusts the temperature of the outside air so as to be a value, and a gas-liquid contact member that is installed on the downstream side of the temperature adjustment unit 20 in the air supply path 100 and that is supplied and circulated with the moisture absorption / release solution.
  • the humidity adjusting unit 23 that adjusts the humidity of the outside air and the concentration of the moisture absorbing / releasing solution are regenerated so that the outside air has a predetermined humidity.
  • the humidity is adjusted on the almost equal enthalpy line by the moisture absorption / release solution, and the set temperature and humidity are maintained.
  • the load of the moisture absorbing / releasing solution for adjusting the temperature and humidity of the outside air is small, the flow rate of the moisture absorbing / releasing solution is reduced, and the moisture absorbing / releasing solution concentration during dehumidification can be kept low.
  • the temperature adjusting unit 20 provided in the air processing unit 2 is cooled to remove a part of the dehumidifying amount, thereby the humidity adjusting unit 23.
  • the concentration of the moisture absorbing / releasing solution used for dehumidification can be lowered or the amount of liquid can be reduced.
  • the regeneration temperature of the moisture absorbing / releasing solution can be lowered, or the dehumidifying device part by the moisture absorbing / releasing solution can be made small, and the heat source of the low exergy, and the vaporizing humidifier with the same size as the humidifier Since the dual use is possible, it is possible to save energy and at the same time reduce the apparatus cost.
  • the flow rate of the moisture absorbing / releasing solution may be about the amount of liquid supplied to the drop-type vaporizing humidifier, whether cooling or dehumidifying, heating humidifying, or cooling humidifying. For this reason, the corrosion range of the air treatment unit 2 and the rate of corrosion are also slowed and the progress of deterioration is slowed, so that the durability is improved. Further, since the flow rate of the moisture absorbing / releasing solution is small, equipment such as a pump can be reduced in size and cost. Furthermore, since the moisture absorbing / releasing solution has a low concentration and a low flow rate, a common tank 6, pump 51, regeneration unit 3, etc. are provided for a number of air treatment units 2 provided corresponding to the plurality of air-conditioned spaces R. The system can be constructed at low cost.
  • FIG. 9 [1] ⁇ [2] is a simplified air diagram showing this change virtually.
  • a high concentration of moisture absorbing / releasing solution is distributed in a large amount, and further, the moisture absorbing / releasing solution is cooled to suppress an increase in temperature.
  • This change is shown in FIG. 9 [2] ⁇ [3]. That is, as a result, [1] ⁇ [3] was changed.
  • the air treatment apparatus 10 of the present embodiment can suppress the temperature rise with a low concentration, small amount of moisture absorbing / releasing solution by cooling and dehumidifying the outside air in advance as shown in [1] ⁇ [2] in FIG. it can. That is, in FIG. 9, among the total dehumidification amount ⁇ X 1 + 2 , ⁇ X 1 is discharged to the outside by cooling dehumidification, and only ⁇ X 2 is absorbed by the moisture absorption / release solution, so that the heating amount in the regeneration unit 3 decreases.
  • the temperature adjustment unit 20 is provided in the cooling coil 21 that cools the outside air by heat exchange with the heat medium, the heating coil 22 that heats the outside air by heat exchange with the heat medium, and the cooling coil 21. And a discharge part 21d for discharging the water generated by the above.
  • the water discharged by the cooling coil 21 is condensed water at a portion higher than the dew point temperature at the set value, it can be maintained higher than the cold water temperature when cooling and dehumidifying to the set humidity. Compared to the above, the efficiency of the cold / hot water supply device 70 including a refrigerator such as an air-cooled heat pump can be maintained high.
  • the moisture absorbing / releasing solution in the air processing unit 2 is non-circulating. Further, the moisture absorbing / releasing solution in the regeneration unit 3 is also non-circulated in the steady operation. That is, since the moisture absorption / release solution has a low flow rate and a low concentration, it can be made non-circulating. For this reason, in each air treatment part 2 and regeneration part 3, the pump for circulation becomes unnecessary and it can reduce cost.
  • the regeneration unit 3 uses a bypass pipe to absorb moisture from the surroundings when stopping during cooling dehumidification and heating dehumidification, and to increase the concentration of the moisture absorbing / releasing solution when changing from the humidifying mode to the dehumidifying mode. Is provided.
  • an upstream humidity sensor H ⁇ b> 2 is provided upstream of the humidity control unit 23 of the air treatment device 10, that is, between the heating coil 22 and the humidity control unit 23.
  • the control device 90 includes a difference calculation unit that obtains a difference between the humidity detected by the upstream temperature sensor H2 and the humidity detected by the humidity sensor H. Then, the concentration determination unit 96 determines the concentration of the moisture absorption / release solution according to the humidity difference obtained by the difference calculation unit.
  • Other configurations are the same as those in the above embodiment.
  • the air treatment device 10 that treats outside air changes the amount of outside air introduced in accordance with the carbon dioxide concentration in the room in order to increase energy saving efficiency. If the amount of outside air decreases, the amount of dehumidification as the device decreases, and the degree to which the moisture absorbing / releasing solution is diluted, that is, the decrease in concentration is reduced, so the solution concentration can be kept low. In addition, this prevents the amount of the moisture absorbing / releasing solution from becoming extremely small, so that the controllability is improved.
  • the concentration of the moisture absorbing / releasing solution is controlled so that the humidity to be set is constant with the amount of the moisture absorbing / releasing solution being constant. It is also possible to maintain the set humidity.
  • the concentration adjusting unit may be configured to dilute with dilution water in the moisture absorption / release solution supply path 4 as a high concentration in the regeneration unit 3.
  • a valve 42a is provided in front of the valve 42 in the supply path 4, and a flow path for dilution water is connected to the supply path 4 between the valve 42 and the valve 42a, and a valve 42b is provided.
  • the heat exchanger 82 may be omitted to simplify the system.
  • the return air from the room may reduce the load on the processing unit by performing total heat exchange or sensible heat exchange with the outside air before entering the processing unit 2 before exhausting outside.
  • the heating source of the heating coil 31 of the regeneration unit 3 is not limited to hot water.
  • the reproduction unit 3 can be further downsized by using a steam heat source.
  • the moisture absorbing / releasing solution is not limited to lithium chloride, and salts, glycerin, ethylene glycol, propylene glycol, and other liquids having hygroscopicity may be used.
  • a water-cooled heat pump may be used, and the heat source of warm water and the heat source of cold water may be comprised separately.
  • a moisture permeable membrane in which air and the solution do not directly contact may be employed.
  • a liquid include an aqueous solution of NaOH and Ca (OH) 2 .
  • it can be configured as a system for removing carbon dioxide in the regeneration unit 3 or a system for periodically cleaning and removing the absorbing liquid and carbon dioxide reactant in the humidity control unit 23.
  • a liquid that absorbs carbon dioxide is added when the outdoor air load is large in summer and winter.
  • the outside air CO 2 is generally 400 ppm, but it may be 700 ppm in the city center. Since indoors are required to be suppressed to 1000 ppm or less, the difference from general outside air is 600 ppm, and the difference from the city center is 300 ppm.
  • the CO 2 concentration in the outside air can be suppressed to a general level.
  • the air as the treatment target of the present invention is not limited to the outside air. Air to be circulated in a common room or air to be circulated between separate rooms may be treated.
  • the present invention is not limited to the above-described embodiments as they are, and the constituent elements can be appropriately modified without departing from the gist thereof. Moreover, you may combine suitably the some component currently disclosed by the above-mentioned embodiment. For example, some constituent elements may be deleted from the constituent elements shown in the above-described embodiments, and constituent elements over different embodiments may be appropriately combined.

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Abstract

L'invention concerne un dispositif de traitement d'air, un dispositif de commande d'un dispositif de traitement d'air et un procédé de commande d'un système de traitement d'air et d'un dispositif de traitement d'air dans lesquels une absorption et une libération efficaces d'humidité sont réalisées à l'aide d'une solution d'absorption/libération d'humidité en une petite quantité et à une faible concentration pendant toute l'année, ce par quoi une réduction de taille et de coût peut être obtenue et une durabilité peut être obtenue. La présente invention comprend : un trajet d'alimentation en air (100) pour fournir de l'air extérieur à un espace climatisé (R); une unité de réglage de température (20) installée sur le trajet d'alimentation en air (100), l'unité de réglage de température (20) réglant la température de l'air extérieur de sorte que l'enthalpie spécifique de l'air extérieur devienne égale à une valeur prescrite; une unité de réglage d'humidité (23) installée sur le côté aval de l'unité de réglage de température (20) sur le trajet d'alimentation en air (100), l'unité de réglage d'humidité (23) ayant un élément de contact gaz-liquide à et à travers lequel la solution d'absorption/libération d'humidité est alimentée et canalisée, l'air extérieur dans lequel la température a été réglée par l'unité de réglage de température (20) étant passé à travers l'unité de réglage d'humidité (23) pour régler l'humidité de l'air extérieur; et une unité de régénération (3) pour régler la concentration de la solution d'absorption/libération d'humidité de sorte que l'air extérieur atteigne une humidité définie.
PCT/JP2017/044909 2017-02-03 2017-12-14 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 WO2018142782A1 (fr)

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