WO2019181146A1 - Dispositif de ventilation - Google Patents

Dispositif de ventilation Download PDF

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Publication number
WO2019181146A1
WO2019181146A1 PCT/JP2019/000135 JP2019000135W WO2019181146A1 WO 2019181146 A1 WO2019181146 A1 WO 2019181146A1 JP 2019000135 W JP2019000135 W JP 2019000135W WO 2019181146 A1 WO2019181146 A1 WO 2019181146A1
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WO
WIPO (PCT)
Prior art keywords
air
supply
indoor
outdoor
exhaust
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PCT/JP2019/000135
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English (en)
Japanese (ja)
Inventor
広大 横山
鈴木　康浩
訓央 清本
智之 樋口
Original Assignee
パナソニックＩｐマネジメント株式会社
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Publication of WO2019181146A1 publication Critical patent/WO2019181146A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems

Definitions

  • the present invention relates to a ventilator that exhausts indoor air to the outside, supplies the outdoor air into the room to ventilate the room, and exchanges heat between the exhaust air supply and the supplied air.
  • Patent Document 1 Conventionally, ventilators with a humidifying function for controlling the humidity of indoor air after humidifying outdoor air taken from outside are known (for example, Patent Document 1 and Patent Document 2).
  • the ventilation device described in Patent Document 2 heats outdoor air with a temperature control coil and then humidifies it with a humidifying element.
  • a large amount of electric power is required for heating with the temperature control coil, which is a problem in terms of energy saving. there were.
  • This invention was made in order to solve the said subject, and it aims at providing the ventilator which can humidify efficiently, suppressing consumption of energy.
  • the ventilator of the present invention includes a housing, an air supply passage, an exhaust air passage, a heat exchanging portion, an exhaust portion, an air supply portion, an indoor humidity sensor, a humidifier. Part, a circulation damper, and a damper control part.
  • the housing has an outdoor air inlet, an indoor air outlet, an indoor air inlet, and an outdoor air outlet.
  • the air supply passage communicates the outdoor side inlet and the indoor side outlet.
  • the exhaust air passage communicates the indoor side inlet and the outdoor side outlet.
  • the heat exchange unit exchanges heat between the air passing through the supply air passage and the air passing through the exhaust air passage.
  • the exhaust part is provided downstream of the heat exchange part in the exhaust air passage, and guides air to the outdoor outlet.
  • the air supply unit is provided downstream of the heat exchange unit in the air supply air passage, and guides air to the indoor air outlet.
  • the indoor humidity sensor detects the humidity of air sucked from the indoor intake port.
  • the humidifying unit is provided on the downstream side of the air supply unit in the air supply air passage, and humidifies the air sucked from the outdoor air inlet.
  • the circulation damper is provided at a boundary portion that separates the supply air passage and the exhaust air passage, and is located downstream of the heat exchange section and upstream of the supply section in the air ventilation path.
  • the damper control unit controls the opening degree of the circulation damper based on the humidity of the air sucked from the indoor side suction port detected by the indoor side humidity sensor.
  • the circulation damper is provided at the boundary portion separating the supply air passage and the exhaust air passage.
  • the circulation damper is positioned downstream of the heat exchange unit and upstream of the supply unit in the supply air path.
  • the opening degree of a circulation damper is controlled based on the humidity of the air (room air) sucked from the room side suction port detected by the room side humidity sensor.
  • indoor air is mixed with the air (outdoor air) sucked from the outdoor suction port for supplying air.
  • the temperature of the air humidified by the humidifying unit can be brought close to the temperature of the room air simply by opening the circulation damper. Therefore, there is an effect that humidification can be performed efficiently while suppressing energy consumption.
  • FIG. 1 is a schematic view schematically showing a supply / exhaust type ventilation apparatus according to the first embodiment of the present invention.
  • FIG. 2A is a schematic diagram schematically showing each air passage when the opening degree of the circulation damper is 0%.
  • FIG. 2B is a schematic diagram schematically showing each air passage when the opening degree of the circulation damper is 50%.
  • FIG. 2C is a schematic diagram schematically showing each air passage when the opening degree of the circulation damper is 100%.
  • FIG. 3 is a flowchart showing a ventilation control process executed by the control unit of the supply / exhaust type ventilation apparatus.
  • FIG. 4 is a flowchart showing a ventilation control process executed by the control unit of the supply / exhaust type ventilation apparatus according to the second embodiment.
  • FIG. 5 is a flowchart showing a ventilation control process executed by the control unit of the supply / exhaust type ventilator according to the third embodiment.
  • FIG. 1 is a schematic view schematically showing a supply / exhaust type ventilation device 1.
  • the supply / exhaust type ventilation apparatus 1 includes a box-shaped housing (main body) 2.
  • the housing 2 has a first side surface 26, a second side surface 27, a third side surface 28, a fourth side surface 29, a bottom surface 30, and a top surface (not shown).
  • the housing 2 further includes a boundary portion 31 that separates the space inside the housing 2.
  • the boundary portion 31 is, for example, an inner wall provided in the housing 2.
  • the housing 2 has an outdoor air outlet 4 and an outdoor air inlet 5 on the first side surface 26. Further, the indoor side air inlet 6 and the indoor side air outlet 7 are provided on the second side surface 27 facing the first side surface 26.
  • the supply / exhaust type ventilator 1 also has an air supply air passage 8 that communicates the outdoor air inlet 5 and the indoor air outlet 7, and an exhaust air air passage 9 that communicates the indoor air inlet 6 and the outdoor air outlet 4. And. Fresh outdoor air (outside air, supply air) introduced from the outdoor suction port 5 and contaminated room air (exhaust air) introduced from the indoor suction port 6 are an air supply fan 12 and an exhaust fan 13. And the air flow path 8 and the exhaust air path 9 respectively.
  • the supply air path 8 is a space defined by the first side surface 26, the second side surface 27, the third side surface 28, the bottom surface 30, the top surface, and the boundary portion 31.
  • the exhaust air passage 9 is a space defined by the first side surface 26, the second side surface 27, the fourth side surface 29, the bottom surface 30, the top surface, and the boundary portion 31.
  • the boundary portion 31 separates the supply air passage 8 and the exhaust air passage 9.
  • the air supply fan 12 is an example of an air supply unit of the present invention, and is provided in the air supply air path 8 on the downstream side (between the heat exchange element 14 and the indoor air outlet 7), which will be described later. Then, the supply air sucked from the outdoor suction port 5 is guided to the indoor air outlet 7 through the supply air passage 8. The air guided to the indoor outlet 7 is supplied into the room.
  • the exhaust fan 13 is an example of the exhaust part of the present invention, and is provided downstream of the heat exchange element 14 (between the heat exchange element 14 and the outdoor outlet 4) in the exhaust air passage 9, The exhaust air sucked from the inner suction port 6 is guided to the outdoor air outlet 4 through the exhaust air passage 9. The air guided to the outdoor outlet 4 is exhausted to the outside.
  • the heat exchange element 14 is disposed at a position where the supply air passage 8 and the exhaust air passage 9 intersect.
  • the heat exchange element 14 is an example of the heat exchange unit of the present invention, and performs heat exchange by a total heat exchange method between the supply air passing through the supply air passage 8 and the exhaust air passing through the exhaust air passage 9. Do.
  • the total heat (temperature and humidity) of the exhausted air is supplied to the supplied air by the heat exchange element 14, or the total heat of the supplied air is supplied to the exhausted air.
  • the outdoor temperature / humidity sensor 17 is disposed between the heat exchange element 14 and the outdoor suction port 5 in the supply air passage 8.
  • An indoor temperature / humidity sensor 16 is disposed between the heat exchange element 14 and the indoor suction port 6 in the exhaust air passage 9.
  • the outdoor temperature / humidity sensor 17 detects the temperature and humidity of the supply air (outdoor air) sucked from the outdoor suction port 5.
  • This outdoor temperature / humidity sensor 17 is an example of the outdoor temperature sensor of the present invention.
  • the indoor side temperature / humidity sensor 16 detects the temperature and humidity of the exhaust air (indoor air) sucked from the indoor side intake port 6.
  • the indoor side temperature / humidity sensor 16 is an example of the indoor side humidity sensor of the present invention.
  • a humidification unit 15 is disposed in the supply air passage 8 downstream of the supply fan 12 (between the supply fan 12 and the indoor outlet 7).
  • the humidifying unit 15 is an example of a humidifying unit according to the present invention, and humidifies the supply air sucked from the outdoor-side suction port 5. That is, the supply air humidified by the humidification unit 15 is supplied from the indoor side outlet 7 into the room.
  • the supply / exhaust type ventilator 1 controls the humidification amount in the humidification unit 15 so that the moisture content contained in the room air becomes the target moisture content, which is the target moisture content.
  • the humidification unit 15 in this embodiment is, for example, a water crushing humidification unit that sprays water crushed by a centrifugal crushing method onto the air.
  • the centrifugal crushing method is a method in which water pumped up by rotation of a pumping pipe is discharged in a centrifugal direction, and the discharged water is collided with a collision wall to be crushed.
  • the water crushing humidification unit can easily adjust the amount of humidification by adjusting the amount of water to be crushed by the amount of rotation of the pumping pipe.
  • This water crushing humidification unit is an example of the water crushing humidification unit of the present invention.
  • the boundary portion 31 has an opening at a position between the heat exchange element 14 and the second side surface 27.
  • the supply / exhaust ventilation device 1 includes a circulation damper 23 at the opening of the boundary portion 31. More specifically, it is upstream of the humidification unit 15 in the air supply air passage 8 (on the side opposite to the indoor air outlet 7 with respect to the humidification unit 15) and downstream of the heat exchange element 14 in the air supply air passage 8.
  • a circulation damper 23 is provided at a position separating the supply air passage 8 and the exhaust air passage 9 on the (humidification unit 15 side).
  • the circulation damper 23 is also provided on the upstream side of the air supply fan 12 (on the side opposite to the humidifying unit 15) in the air supply air passage 8.
  • the circulation damper 23 may be a slide damper or a butterfly damper.
  • the circulation damper 23 is a slide type damper, and the opening degree is adjusted by sliding in parallel with the boundary portion between the supply air passage 8 and the exhaust air passage 9.
  • the circulation damper 23 is provided upstream of the air supply fan 12 in the air supply path 8. Thereby, when the circulation damper 23 is opened, the indoor air sucked from the indoor suction port 6 can be reliably guided to the indoor blowout port 7 by the air supply fan 12.
  • the exhaust fan 13 is provided in the exhaust air passage 9 on the downstream side of the heat exchange element 14 (between the heat exchange element 14 and the outdoor air outlet 4). If the exhaust fan 13 is provided upstream of the circulation damper 23 in the exhaust air passage 9, much of the indoor air guided by the exhaust fan 13 flows to the supply air passage 8 by the circulation damper 23, and the amount of exhaust air to the outside is reduced. It cannot be secured. Further, when the exhaust fan 13 is provided in the exhaust air passage 9 upstream of the heat exchange element 14 and downstream of the circulation damper 23, suction of the exhaust fan 13 and suction of the air supply fan 12 are performed via the circulation damper 23. Interfere with each other, making it difficult to control the amount of indoor air circulated through the circulation damper 23. In the present embodiment, the exhaust fan 13 is provided on the downstream side of the heat exchange element 14 in the exhaust air passage 9, thereby securing the exhaust air amount to the outdoors and circulating the air through the circulation damper 23. Can be controlled easily.
  • a control unit 20 that controls the operation of the supply / exhaust ventilator 1 is provided inside or outside the supply / exhaust ventilator 1.
  • the control unit 20 controls one or both of the current and the rotational speed of the exhaust motor of the exhaust fan 13 and controls the humidification amount in the humidification unit 15.
  • the control unit 20 includes a damper control unit 21 and an air supply air volume control unit 22.
  • the damper control unit 21 controls the opening degree of the circulation damper 23 by driving the circulation damper 23 according to the humidity of the room air detected by the indoor temperature and humidity sensor 16.
  • the supply air volume control unit 22 controls one or both of the current and the rotation speed of the supply motor of the supply fan 12 to execute a supply air volume constant control to keep the supply air volume constant.
  • the supply air volume control unit 22 executes constant supply air volume control so that the supply air volume of the supply air blown out to the indoor outlet 7 is constant even when the circulation damper 23 is opened.
  • One or both of the current and the rotational speed of the air supply motor of the air fan 12 are controlled.
  • FIG. 2A is a schematic diagram schematically showing each air passage when the opening degree of the circulation damper 23 is 0%, that is, when the circulation damper 23 is closed.
  • the supply air passage 8 and the exhaust air passage 9 are not in communication with each other inside the supply / exhaust type ventilation device 1.
  • supply air and exhaust air are guided with an air volume corresponding to the rotation speed of the supply fan 12 and the exhaust fan 13.
  • FIG. 2B is a schematic diagram schematically showing each air passage when the opening of the circulation damper 23 is opened at 50%.
  • the supply air passage 8 and the exhaust air passage 9 communicate with each other, and an indoor air circulation air passage 24 and an outdoor air circulation air passage 25 are formed.
  • the heat exchange element 14 becomes a load due to the presence of the heat exchange element 14, while the indoor side of the circulation damper 23 has no such load. Therefore, most of the outdoor air sucked from the outdoor air inlet 5 is led to the indoor air outlet 7 as the supplied air by the air supply air passage 8 and is guided to the outdoor air outlet 4 by the outdoor air circulation air passage 25. The airflow of is negligible. On the other hand, part of the indoor air sucked from the indoor air inlet 6 is led to the indoor air outlet 7 by the indoor air circulation air passage 24 as supply air. The amount of air guided to the outdoor air outlet 4 by the exhaust air passage 9 is reduced accordingly.
  • the supply air volume of the supply air led to the indoor side outlet 7 by the supply fan 12 is set to 100 m 3 / h.
  • the opening degree of the circulation damper 23 is set to 50%.
  • outdoor air sucked from the outdoor suction port 5 is guided to the indoor air outlet 7 with an air volume of 80 m 3 / h, and from the indoor air suction port 6.
  • the sucked indoor air is guided to the indoor outlet 7 with an air volume of 20 m 3 / h.
  • FIG. 2C is a schematic diagram schematically showing each air passage when the opening of the circulation damper 23 is opened at 100%.
  • the communication area between the supply air passage 8 and the exhaust air passage 9 is larger than that when the circulation damper 23 is opened with the opening degree of the circulation damper 23 being 50%. Air is guided to the indoor side air outlet 7 by the indoor air circulation air passage 24.
  • the supply air volume of the supply air led to the indoor side outlet 7 by the supply fan 12 is set to 100 m 3 / h.
  • the opening degree of the circulation damper 23 is set to 100%.
  • outdoor air sucked from the outdoor air inlet 5 is guided to the indoor air outlet 7 with an air volume of 60 m 3 / h, and from the indoor air inlet 6.
  • the sucked indoor air is guided to the indoor outlet 7 with an air volume of 40 m 3 / h.
  • mixed air is formed in which indoor air guided by more indoor air circulation air passages 24 is mixed with outdoor air guided by the air supply air passage 8. Is done.
  • the mixed air is humidified by the humidification unit 15 as supply air. Therefore, the saturated water vapor amount of the supply air to be humidified can be made closer to the saturated water vapor amount of the room air, so that more effective humidification can be performed.
  • FIG. 3 is a flowchart showing the ventilation control process.
  • the ventilation control process is a process for controlling ventilation in the supply / exhaust type ventilator 1.
  • the ventilation control process also performs a process of setting the opening degree of the circulation damper 23 according to the humidity and humidity of the indoor air detected by the indoor temperature and humidity sensor 16.
  • the ventilation control process is executed by the control unit 20 when the supply / exhaust ventilation device 1 starts the ventilation operation, and continues to be executed while the ventilation operation is being performed.
  • the control unit 20 starts the operation of the air supply fan 12 so that the air supply amount blown from the indoor air outlet 7 becomes a predetermined air amount
  • the operation of the exhaust fan 13 is started so that the exhaust air volume blown from the outdoor air outlet 4 becomes a predetermined air volume (S1).
  • the control unit 20 also starts humidification by the humidification unit 15.
  • control unit 20 controls either or both of the current and the rotational speed of the air supply motor of the air supply fan 12 to execute the air supply air volume constant control for making the air supply air volume constant (S2).
  • the process of S ⁇ b> 2 constitutes the supply air volume control unit 22.
  • control unit 20 determines whether or not a predetermined time T has elapsed since the opening of the circulation damper 23 was previously set (S3).
  • the predetermined time T is determined in advance by a program.
  • control unit 20 calculates (specifies) the current water content, which is the current water content in the room, from the temperature and humidity of the indoor air detected by the indoor temperature / humidity sensor 16 (S4).
  • the process of S4 is an example of the current water content specifying unit of the present invention.
  • control unit 20 calculates (specifies) a target moisture amount that is a target moisture amount in the room from the target temperature and humidity (S5).
  • the process of S5 is an example of the target moisture content specifying unit of the present invention.
  • the target temperature and humidity may be set in advance in the supply / exhaust ventilation device 1 and stored in a storage unit (not shown) provided in the control unit 20. Moreover, the target is set by the user from a switch provided in the supply / exhaust type ventilator 1, a remote controller connectable to the supply / exhaust type ventilator 1, or a portable information terminal such as a smartphone or a tablet (both not shown). The temperature and humidity to be set may be set.
  • the control unit 20 determines whether or not the difference between the target moisture amount calculated by the process of S5 and the current moisture amount calculated by the process of S4 is larger than a predetermined threshold value X (S6).
  • a predetermined threshold value X an arbitrary value is predetermined by the program.
  • a switch provided in the supply / exhaust type ventilation device 1, a remote controller connectable to the supply / exhaust type ventilation device 1, or a portable information terminal such as a smartphone or a tablet (none of which is shown) is used by a user to A threshold value X may be set.
  • the control unit 20 sets the opening degree of the circulation damper 23 to 100%.
  • Set (S7) Thereby, the circulation damper 23 is opened at an opening degree of 100%.
  • a lot of room air sucked from the room-side suction port 6 is mixed with outdoor air in the supply air path 8 by the room air circulation air path 24.
  • the mixed air is humidified by the humidification unit 15 as supply air. Therefore, as described above, the saturated water vapor amount of the supplied air to be humidified can be made much closer to the saturated water vapor amount of the indoor air. Therefore, even if the difference between the target moisture amount and the current moisture amount is large, it is possible to effectively humidify and bring it closer to the target moisture amount.
  • the control unit 20 sets the opening degree of the circulation damper 23 to 50. % Is set (S8). As a result, the circulation damper 23 is opened at an opening of 50%, and a part of the indoor air sucked from the indoor side intake port 6 is mixed with the outdoor air of the supply air passage 8 by the indoor air circulation air passage 24 and mixed.
  • the humidified air is humidified by the humidification unit 15 as supply air.
  • the saturated water vapor amount of the supply air to be humidified by mixing the indoor air with the outdoor air is changed to the saturated water vapor amount of the indoor air. Can be approached. Therefore, humidification can be performed effectively and the target moisture amount can be approached.
  • the ratio of the indoor air contained in the supply air is lowered by reducing the opening of the circulation damper 23, and conversely the outdoor air The ratio can be increased. Therefore, the ventilation efficiency can be increased.
  • the damper control unit 21 is configured by the processing of S6 to S8.
  • the process of S6 it may be determined whether or not the difference between the target moisture amount and the current moisture amount is equal to or greater than a predetermined threshold value X. That is, when it is determined that the difference between the target moisture content and the current moisture content is equal to or greater than the predetermined threshold value X, the process proceeds to S7, and the difference between the target moisture content and the current moisture content is less than the predetermined threshold value X. If it is determined that there is, the process may proceed to S8.
  • the control unit 20 determines whether or not to end the ventilation operation (S9). This determination is made by a user operating a switch provided in the supply / exhaust ventilator 1, a remote controller connectable to the supply / exhaust ventilator 1, or a portable information terminal such as a smartphone or a tablet (none of which is shown). Then, it is performed by determining whether or not the stop of the ventilation operation is instructed.
  • the supply air flow path 8 is downstream of the heat exchange element 14 and upstream of the supply air fan 12, and the supply air flow A circulation damper 23 is provided at a boundary portion separating the passage 8 and the exhaust air passage 9. Then, the opening degree of the circulation damper 23 is controlled based on the humidity of the room air sucked from the room side suction port 6 detected by the room side temperature / humidity sensor 16.
  • the indoor air is mixed with the outdoor air sucked from the outdoor suction port 5 for supplying air. Therefore, when sufficient humidification of the indoor air is required, the humidifying unit can be simply opened by opening the circulation damper 23.
  • the temperature of the air humidified at 15 can be brought close to the temperature of the room air. Therefore, it is possible to bring the saturated water vapor amount of the humidified supply air close to the saturated water vapor amount of the indoor air simply by controlling the opening degree of the circulation damper 23, so that the consumption of energy is efficiently suppressed. Can be humidified.
  • the circulation damper 23 is provided on the upstream side of the air supply fan 12, when the circulation damper 23 is opened, the indoor air sucked from the indoor side suction port 6 is reliably blown into the indoor side by the air supply fan 12. It can be led to the outlet 7.
  • the supply / exhaust type ventilation device 1 identifies the current water content that is the current water content in the room based on the humidity detected by the indoor temperature / humidity sensor 16 through the ventilation control process executed by the control unit 20. At the same time, a target moisture amount that is a target moisture amount in the room is specified. Then, the opening degree of the circulation damper 23 is controlled in accordance with the difference between the target moisture amount and the current moisture amount. Thereby, when the difference between the target moisture content and the current moisture content is large, humidification can be performed more efficiently by increasing the opening degree of the circulation damper 23.
  • the supply / exhaust type ventilator 1 according to the second embodiment determines whether or not the difference between the target water content and the current water content is larger than a predetermined threshold value X. If the difference is larger, the opening degree of the circulation damper 23 is set to 100. In other cases, the opening degree of the circulation damper 23 is set to 50%. In contrast, the supply / exhaust type ventilator 1 according to the second embodiment prepares two threshold values X1 and X2 (X1> X2) for the difference between the target water content and the current water content, and the circulation damper 23. Set the opening of.
  • the schematic configuration of the supply / exhaust type ventilator 1 according to the second embodiment is the same as that of the supply / exhaust type ventilator 1 according to the first embodiment, and a part of the ventilation control process executed by the control unit 20 is different. .
  • the supply / exhaust type ventilator 1 according to the second embodiment will be described focusing on differences from the supply / exhaust type ventilator 1 according to the first embodiment.
  • symbol is attached
  • FIG. 4 is a flowchart showing a ventilation control process executed by the control unit 20 of the supply / exhaust type ventilation apparatus 1 according to the second embodiment.
  • the process of S11 it is determined whether or not the difference between the target moisture amount calculated in the process of S5 and the current moisture amount calculated in the process of S4 is greater than the first threshold value X1 (S11).
  • the first threshold value X1 an arbitrary value is predetermined by the program.
  • a first switch is provided by the user from a switch provided in the supply / exhaust type ventilator 1, a remote controller connectable to the supply / exhaust type ventilator 1, or a portable information terminal such as a smartphone or a tablet (none of which is shown).
  • the threshold value X1 may be set.
  • the control unit 20 sets the opening degree of the circulation damper 23 to 100%. (S12). Thereby, the circulation damper 23 is opened at an opening degree of 100%.
  • a lot of room air sucked from the room-side suction port 6 is mixed with outdoor air in the supply air path 8 by the room air circulation air path 24.
  • the mixed air is humidified by the humidification unit 15 as supply air. Therefore, as described above, the saturated water vapor amount of the supplied air to be humidified can be made much closer to the saturated water vapor amount of the indoor air, so even if the difference between the target water amount and the current water amount is large, it is effective. Humidification can be performed to approach the target moisture content.
  • the control unit 20 calculates by the process of S5. It is determined whether or not the difference between the target water content and the current water content calculated by the process of S4 is larger than the second threshold value X2 (S13).
  • the second threshold value X2 an arbitrary value is predetermined by the program in a range smaller than the first threshold value X1.
  • a first switch is provided by the user from a switch provided in the supply / exhaust type ventilator 1, a remote controller connectable to the supply / exhaust type ventilator 1, or a portable information terminal such as a smartphone or a tablet (none of which is shown).
  • the second threshold value X2 may be set in a range smaller than the threshold value X1.
  • the control unit 20 sets the opening degree of the circulation damper 23 to 50%. (S14). Thereby, the circulation damper 23 is opened at an opening degree of 50%. A part of the indoor air sucked from the indoor suction port 6 is mixed with the outdoor air of the supply air passage 8 by the indoor air circulation air passage 24. The mixed air is humidified by the humidification unit 15 as supply air.
  • the indoor air is mixed with the outdoor air to reduce the saturated water vapor content of the supplied air to be humidified.
  • the amount of saturated water vapor in the room air can be approached. Therefore, humidification can be performed effectively and the target moisture amount can be approached.
  • the proportion of indoor air contained in the supply air can be lowered, and conversely, the proportion of outdoor air can be increased. Therefore, the ventilation efficiency can be increased.
  • the control unit 20 sets the opening degree of the circulation damper 23. Set to 0% (S15).
  • the circulation damper 23 is closed and the outdoor air is not mixed with the indoor air. Therefore, when the current moisture content of the room air is close to the target moisture content and humidification by the humidification unit 15 is not necessary, the circulation damper 23 is closed to suppress the circulation of the room air, thereby improving the ventilation efficiency. Can be increased.
  • the damper control unit 21 is configured by the processing of S11 to S15.
  • the process of S11 it may be determined whether or not the difference between the target moisture content and the current moisture content is equal to or greater than the first threshold value X1. That is, when it is determined that the difference between the target moisture amount and the current moisture amount is equal to or greater than the first threshold value X1, the process proceeds to S12, and the difference between the target moisture amount and the current moisture amount is the first threshold value X1. If it is determined that the value is less than the value, the process may proceed to S13.
  • the process of S13 it may be determined whether or not the difference between the target moisture content and the current moisture content is equal to or greater than the second threshold value X2. That is, when it is determined that the difference between the target moisture amount and the current moisture amount is equal to or greater than the second threshold value X2, the process proceeds to S14, and the difference between the target moisture amount and the current moisture amount is the second threshold value X2. If it is determined that the value is less than the value, the process may proceed to S15.
  • the circulation damper 23 when the difference between the target moisture amount and the current moisture amount is larger than the first threshold value X1, the circulation damper 23 is opened. Opened at 100%. Further, when the difference between the target moisture amount and the current moisture amount is equal to or less than the first threshold value X1 and greater than the second threshold value X2, the circulation damper 23 is opened at an opening degree of 50%. Further, when the difference between the target moisture content and the current moisture content is equal to or smaller than the second threshold value X2, the circulation damper 23 is closed at the opening degree of 0%.
  • the supply / exhaust type ventilator 1 according to the third embodiment sets the opening degree of the circulation damper 23 based on the difference between the target moisture content and the current moisture content.
  • the supply / exhaust type ventilator 1 according to the third embodiment sets the opening degree of the circulation damper 23 based on the outside air temperature in addition to the difference between the target water amount and the current water amount.
  • the schematic configuration of the supply / exhaust ventilator 1 according to the third embodiment is the same as that of the supply / exhaust ventilator 1 according to the first embodiment, and a part of the ventilation control process executed by the control unit 20 is different. .
  • the supply / exhaust type ventilator 1 according to the third embodiment will be described focusing on differences from the supply / exhaust type ventilator 1 according to the first embodiment.
  • symbol is attached
  • FIG. 5 is a flowchart showing a ventilation control process executed by the control unit 20 of the supply / exhaust type ventilation apparatus 1 according to the third embodiment.
  • the control unit 20 When it is determined that the difference between the target water content and the current water content is larger than the predetermined threshold value X (S6: Yes), the control unit 20 then detects the outdoor temperature / humidity sensor 17 in S6. It is determined whether or not the outside air temperature, which is the temperature of the air (outdoor air) sucked from the outdoor suction port 5 is less than the predetermined temperature Th (S21). Note that an arbitrary value is predetermined by the program as the predetermined temperature Th. In addition, a switch provided in the supply / exhaust type ventilation device 1, a remote controller connectable to the supply / exhaust type ventilation device 1, or a portable information terminal such as a smartphone or a tablet (none of which is shown) is used by a user to The temperature Th may be set.
  • the control unit 20 sets the opening degree of the circulation damper 23 to 100% (S22). Thereby, the circulation damper 23 is opened at an opening degree of 100%.
  • the humidifying unit 15 if only the outdoor air having a low outside air temperature is humidified by the humidifying unit 15, the saturated steam amount of the air is small, so that sufficient humidification cannot be performed, and the moisture content of the room air reaches the target moisture content. It becomes difficult to make it.
  • the circulation damper 23 is opened at an opening degree of 100%.
  • a lot of room air sucked from the room-side suction port 6 is mixed with outdoor air in the supply air path 8 by the room air circulation air path 24 to form mixed air.
  • the temperature of the mixed air is higher than the temperature of the outdoor air.
  • the mixed air is humidified by the humidification unit 15 as supply air. Therefore, as described above, the saturated water vapor amount of the supply air to be humidified can be made much closer to the saturated water vapor amount of the room air, so that humidification can be effectively performed and the target water amount can be brought close to.
  • the control unit 20 sets the opening degree of the circulation damper 23 to 50% (S23). Thereby, the circulation damper 23 is opened at an opening degree of 50%.
  • the circulation damper 23 when the current water content is smaller than the target water content and the outside air temperature is high, the circulation damper 23 is opened at an opening degree of 50%.
  • the outside air temperature if the outside air temperature is high, the saturated water vapor amount of the supply air to be humidified can be increased without mixing a lot of indoor air with the outdoor air. Therefore, in such a case, even if the circulation damper 23 is opened at an opening degree of 50% and the room air mixed with the outdoor air of the supply air passage 8 is reduced, it is possible to effectively humidify and bring it close to the target moisture amount. it can. And the efficiency of ventilation can be improved by reducing the ratio of the indoor air contained in supply air, and conversely increasing the ratio of outdoor air.
  • the control unit 20 sets the opening degree of the circulation damper 23 to 0. % Is set (S24). As a result, the circulation damper 23 is closed and the outdoor air is not mixed with the indoor air. Therefore, when the current moisture content of the room air is close to the target moisture content and humidification by the humidification unit 15 is not necessary, the circulation damper 23 is closed to suppress the circulation of the room air, thereby improving the ventilation efficiency. Can be increased.
  • the damper control unit 21 is configured by the processes of S6 and S21 to S24.
  • the process of S6 it may be determined whether or not the difference between the target moisture amount and the current moisture amount is equal to or greater than a predetermined threshold value X. That is, when it is determined that the difference between the target moisture amount and the current moisture amount is equal to or greater than the predetermined threshold value X, the process proceeds to S21, and the difference between the target moisture amount and the current moisture amount is less than the predetermined threshold value X. If it is determined that there is, the process may proceed to S24.
  • the process of S21 it may be determined whether or not the outside air temperature is equal to or lower than a predetermined temperature Th. That is, when it is determined that the outside air temperature is equal to or lower than the predetermined temperature Th, the process proceeds to S22, and when it is determined that the outside air temperature is higher than the predetermined temperature Th, the process proceeds to S23. Good.
  • the circulation damper 23 when the outside air temperature is lower than the predetermined temperature Th, the circulation damper 23 is opened at an opening degree of 100%, and the outside air temperature is predetermined.
  • the circulation damper 23 is opened at an opening degree of 50%.
  • the outdoor air temperature when the outdoor air temperature is high, the amount of water vapor saturation in the outdoor air is high, so that the indoor air mixed with the humidified supply air can be reduced and the proportion of outdoor air can be increased. Thereby, the efficiency of ventilation can be improved.
  • the current moisture amount that is the current moisture amount in the room and the target moisture amount that is the target moisture amount in the room are calculated, and according to the magnitude of the difference
  • the current humidity which is the current humidity of the room air detected by the indoor temperature / humidity sensor 16
  • the indoor moisture is indicated as an indication of the target moisture content indirectly.
  • the target humidity may be acquired, and the opening degree of the circulation damper 23 may be set according to the magnitude of the difference between the target humidity and the current humidity.
  • the temperature of the air humidified by the humidification unit 15 can be set to the room air temperature only by opening the circulation damper 23. Can be close to temperature. Therefore, it is possible to efficiently humidify while suppressing energy consumption.
  • the difference between the target water content and the current water content is divided into three stages using the two threshold values X1 and X2 and the opening degree of the circulation damper 23 is set for each of the three levels is described.
  • the number of threshold values prepared may be an arbitrary number of 2 or more. By preparing more threshold values, the opening degree of the circulation damper 23 can be finely adjusted.
  • the case where the outside air temperature is divided into two stages by using one predetermined temperature Th and the opening degree of the circulation damper 23 is set for each is described, but it is prepared for the outside air temperature.
  • the number of thresholds may be an arbitrary number of 2 or more. By preparing more threshold values, the opening degree of the circulation damper 23 can be finely adjusted.
  • the opening degree of the circulation damper 23 may be set in each stage. Further, in all stages divided by the difference between the target moisture content and the current moisture content, the opening degree of the circulation damper 23 may be further set according to the outside air temperature, or the target moisture content and the current moisture content may be set. Only in a part of the stage where the difference is large, the opening degree of the circulation damper 23 may be set according to the outside air temperature. Further, when the opening degree of the circulation damper 23 is further set in accordance with the outside air temperature at a plurality of stages among the stages divided by the difference between the target moisture content and the current moisture content, the predetermined temperature Th is different at each stage. May be set.
  • the humidifying unit 15 may be one that crushes water by ultrasonic vibration and humidifies it.
  • the ventilator according to the present invention is effective as a ventilator for ventilating a room by discharging indoor air to the outside and supplying the outdoor air to the room.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Air Conditioning Control Device (AREA)
  • Ventilation (AREA)
  • Air Humidification (AREA)

Abstract

L'objectif de la présente invention est de fournir un dispositif de ventilation qui permet de conduire une humidification efficace tout en supprimant la consommation d'énergie. Un dispositif de ventilation de type distribution/évacuation (1) est pourvu d'un basculeur de circulation (23) au niveau d'une partie de limite (31) qui sépare un trajet de distribution d'air (8) et un trajet d'évacuation d'air (9). Le basculeur de circulation (23) est situé en amont d'un ventilateur de distribution d'air (12) et en aval d'un élément d'échange de chaleur (14) dans le trajet de distribution d'air (8). Le degré d'ouverture du basculeur de circulation (23) est commandé sur la base de l'humidité de l'air intérieur aspiré à travers un orifice d'aspiration côté intérieur (6) et détecté par un capteur de température/humidité côté intérieur (16).
PCT/JP2019/000135 2018-03-20 2019-01-08 Dispositif de ventilation WO2019181146A1 (fr)

Applications Claiming Priority (2)

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JP2018051887A JP2019163901A (ja) 2018-03-20 2018-03-20 換気装置
JP2018-051887 2018-03-20

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7507334B2 (ja) 2020-02-17 2024-06-28 パナソニックＩｐマネジメント株式会社 加湿機能付き熱交換形換気装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0423943U (fr) * 1990-06-15 1992-02-26
JPH10132359A (ja) * 1996-10-25 1998-05-22 Toshiba Corp 換気装置
JP2002206778A (ja) * 2001-01-12 2002-07-26 Daikin Ind Ltd 空気調和装置
JP2008104484A (ja) * 2006-10-23 2008-05-08 Matsushita Electric Ind Co Ltd サウナ装置
JP2009287861A (ja) * 2008-05-30 2009-12-10 Panasonic Corp 加湿換気装置
WO2012077201A1 (fr) * 2010-12-08 2012-06-14 三菱電機株式会社 Dispositif de ventilation et de climatisation
JP2015210051A (ja) * 2014-04-30 2015-11-24 津福工業株式会社 除加湿装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0423943U (fr) * 1990-06-15 1992-02-26
JPH10132359A (ja) * 1996-10-25 1998-05-22 Toshiba Corp 換気装置
JP2002206778A (ja) * 2001-01-12 2002-07-26 Daikin Ind Ltd 空気調和装置
JP2008104484A (ja) * 2006-10-23 2008-05-08 Matsushita Electric Ind Co Ltd サウナ装置
JP2009287861A (ja) * 2008-05-30 2009-12-10 Panasonic Corp 加湿換気装置
WO2012077201A1 (fr) * 2010-12-08 2012-06-14 三菱電機株式会社 Dispositif de ventilation et de climatisation
JP2015210051A (ja) * 2014-04-30 2015-11-24 津福工業株式会社 除加湿装置

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