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WO2007004446A1 - Ventilateur - Google Patents

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Publication number
WO2007004446A1
WO2007004446A1 PCT/JP2006/312621 JP2006312621W WO2007004446A1 WO 2007004446 A1 WO2007004446 A1 WO 2007004446A1 JP 2006312621 W JP2006312621 W JP 2006312621W WO 2007004446 A1 WO2007004446 A1 WO 2007004446A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
fan
exhaust
air supply
supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2006/312621
Other languages
English (en)
Japanese (ja)
Inventor
Nobuki Matsui
Yoshinori Narikawa
Tomohiro Yabu
Satoshi Ishida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of WO2007004446A1 publication Critical patent/WO2007004446A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • 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
    • F24F11/0001—Control or safety arrangements for ventilation
    • 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
    • F24F3/001—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 in which the air treatment in the central station takes place by means of a heat-pump or by means of a reversible cycle
    • 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
    • F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1429—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant alternatively operating a heat exchanger in an absorbing/adsorbing mode and a heat exchanger in a regeneration mode
    • 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
    • F24F11/0001—Control or safety arrangements for ventilation
    • F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/30—Velocity

Definitions

  • the present invention relates to a ventilator that ventilates a room, and particularly relates to ventilation control of a ventilator in which an air conditioning means that regulates air temperature and humidity is disposed in an air passage in a casing. .
  • ventilators that ventilate a room in order to maintain cleanliness or comfort in the room are known.
  • this ventilator exhausts indoor air to the outside with an exhaust fan, while supplying outdoor air in an amount equivalent to this exhausted air to the room with an air supply fan, so that the concentration of carbon dioxide in the room is predetermined. Is kept below the standard value.
  • Patent Document 1 discloses a ventilator as described above that includes an air-conditioning means for adjusting the humidity and temperature of air.
  • this ventilator two adsorption heat exchangers are arranged as the air conditioning means in the air passage in the casing. These adsorption heat exchangers are configured such that an adsorbent that adsorbs and desorbs moisture is supported on a fin-and-tube heat exchanger. These adsorption heat exchanges are connected to a refrigerant circuit that circulates refrigerant and performs a refrigeration cycle.
  • one adsorption heat exchanger functions as a evaporator, and the other adsorption heat exchanger functions as a condenser.
  • an air supply fan for supplying outdoor air to the room and an exhaust fan for discharging indoor air to the room are arranged in the air passage.
  • this ventilator an operation of ventilating the room while dehumidifying and an operation of ventilating the room while humidifying are performed. Specifically, during the dehumidifying operation, outdoor air passes through an adsorption heat exchanger serving as an evaporator. In this adsorption heat exchanger, the adsorbent is cooled by the refrigerant, and moisture in the air is adsorbed by the adsorbent, and at the same time, the adsorption heat generated at this time is taken away by the refrigerant. The air dehumidified as described above is supplied into the room, and the room is dehumidified. On the other hand, the room air passes through the adsorption heat exchange that becomes a condenser.
  • the refrigerant is heated by the adsorbent, and moisture is desorbed from the adsorbent and released to the air. Is issued. As described above, the air used for the regeneration of the adsorbent is discharged outside the room.
  • outdoor air passes through an adsorption heat exchanger serving as a condenser.
  • the adsorbent is heated by the refrigerant, and moisture is desorbed from the adsorbent and released to the outdoor air.
  • the air humidified as described above is supplied into the room, and the room is humidified.
  • the indoor air passes through the adsorption heat exchange that serves as an evaporator.
  • the adsorbent is cooled by the refrigerant, and moisture in the air is adsorbed by the adsorbent, and at the same time the adsorption heat generated at this time is taken away by the refrigerant.
  • the air that has given moisture to the adsorbent is discharged to the outside.
  • the indoor air quality is further improved by supplying the outdoor air to the room and exhausting the room air to the outside of the room for further indoor air conditioning. ⁇ Ensure comfort.
  • Patent Document 1 Japanese Patent Laid-Open No. 2004-294048
  • the present invention has been made in view of the strong point, and an object of the present invention is to provide a ventilation device including air conditioning means for performing air conditioning in a room without depending on the blowing resistance of the blowing fan. Change It is to be able to be sure.
  • the first invention is a casing (11) that forms an air passage for communicating between the room and the outside, a blower fan (25, 26) that is disposed in the air passage and conveys air, It is premised on a ventilator provided with air-conditioning means (51, 52, 111, 112, 150) that is disposed in the air passage and performs at least either humidity adjustment or temperature adjustment of air.
  • the ventilator (25, 26) has a ventilation fan (25, 26) so that the blowing amount of the blowing fan (25, 26) is maintained at the target blowing amount even if the blowing resistance of the blowing fan (25, 26) changes. 26) is provided with a control means (90) for adjusting the air blowing capacity.
  • the blower fan (25, 26) disposed in the air passage when operated, air is conveyed between the room and the outside, and the room is ventilated.
  • the air conveyed by the blower fan (25, 26) is adjusted in humidity or temperature by the air-conditioning means (51, 52) and supplied to the room to adjust the humidity and temperature in the room.
  • the control is performed.
  • the means (90) increases the blowing capacity of the blower fan (25, 26), and controls the blower fan (25, 26) so that the blower amount maintains the target blower amount.
  • a second invention includes the wind speed sensor (71, 72) for detecting the wind speed of air in the first invention, and the control means (90) is detected by the wind speed sensor (71, 72).
  • the blowing capacity of the blowing fan (25, 26) By adjusting the blowing capacity of the blowing fan (25, 26) based on the wind speed, the blowing volume of the blowing fan (25, 26) is maintained at the target blowing volume.
  • the current air flow rate of the wind speed blower fan (25, 26) detected by the wind speed sensor (71, 72) is estimated.
  • the control means (90) adjusts the blowing capacity of the blowing fans (25, 26) so that the estimated blowing volume approaches the target blowing volume.
  • the third invention is the first invention, wherein the filter (61, 62) is disposed upstream of the air conditioning means (51, 52) in the air passage and collects dust in the air.
  • a first pressure sensor (73, 74) disposed upstream of the filter (61, 62) in the air passage and a second pressure sensor (73, 74) disposed downstream of the filter (61, 62) in the air passage.
  • a pressure sensor (75,76), and the control means (90) is based on a difference in detected pressure between the first pressure sensor (73,74) and the second pressure sensor (75,76).
  • the air passes through the air conditioning means (51, 52).
  • the filter (61, 62) is arranged upstream of the air conditioning means (51, 52) in this way, dust can be prevented from adhering to the air conditioning means (51, 52), while dust accumulates in the filter (61, 62).
  • the pressure loss of the filter (61, 62) is likely to increase.
  • the control means (90) of the present invention includes the first pressure sensor (73, 74) on the upstream side of the filter (61, 62) and the second pressure on the downstream side of the filter (61, 62).
  • the pressure loss of the blower fan (25, 26) is estimated from the difference in detected pressure from the sensor (75, 76), and the current blown amount of this pressure loss force blower fan (25, 26) is estimated.
  • the control means (90) adjusts the blowing capacity of the blowing fans (25, 26) so that the estimated blowing volume approaches the target blowing volume. As a result, even if the blowing resistance of the blower fan (25, 26) increases due to an increase in pressure loss of the filter (61, 62), the blown amount of the blower fan (25, 26) becomes the target blown amount. Kept.
  • the fourth invention is characterized in that, in the third invention, the second pressure sensor (75, 76) is disposed downstream of the air conditioning means (51, 52) in the air passage.
  • the second pressure sensor (51, 52) is considered in consideration that dust having a relatively small particle diameter in the air that has passed through the filter (61, 62) accumulates in the air conditioning means (51, 52). 75, 76) are arranged downstream of the air conditioning means (51, 52). That is, in the present invention, the pressure loss of the filter (61, 62) and the air conditioning means (51, 52) is detected by the first and second pressure sensors (75, 76).
  • the control means (90) is configured to calculate the blower fan (25,26) based on the difference in the detected pressure of each pressure sensor (75,76). The current air flow rate is estimated, and the air blowing capacity of the air blowing fans (25, 26) is adjusted so that this air flow rate approaches the target air flow rate. As a result, even if the blowing resistance of the blower fan (26,26) increases due to an increase in pressure loss of the filter (61,62) and the air conditioning means (51,52), the blower fan (25,26) The air volume is kept at the target air volume.
  • the air conditioning means (51, 52) includes an adsorbent that adsorbs and desorbs moisture in the air, and the air is adjusted by bringing the adsorbent into contact with air.
  • a first humidity sensor (77, 78) configured to perform humidity and disposed upstream of the air conditioning means (51, 52) in the air passage, and downstream of the air conditioning means (51, 52) in the air passage
  • a second humidity sensor (79,80) disposed on the side, and the control means (90) adjusts the detected humidity of the first humidity sensor (77,78) and the second humidity sensor (79,80).
  • the air by the air conditioning means (51, 52) depends on the wind speed of the air flowing through the air conditioning means (51, 52).
  • the amount of humidity control (the amount of change in air humidity before and after the air conditioning means) changes. That is, for example, as the wind speed of the air flowing through the air conditioning means (51, 52) increases, the turbulence of the air flow passing through the air conditioning means (51, 52) increases, and the moisture between the air and the adsorbent is increased. Transfer is promoted. Therefore, the air humidity control amount by the air conditioning means (51, 52) increases. In other words, when the wind speed of the air flowing through the air conditioning means (51, 52) becomes slow, the humidity adjustment amount of the air by the air conditioning means (51, 52) decreases.
  • the air flow rate of the blower fan (25, 26) is adjusted using the relationship between the wind speed and the humidity control amount in the air conditioning means (51, 52).
  • the control means (90) includes the detected humidity of the first humidity sensor (77, 78) upstream of the air conditioning means (51, 52) and the downstream side of the air conditioning means (51, 52). 2 Based on the humidity detected by the humidity sensor (79, 80), calculate the amount of change in air humidity before and after the air conditioning means (51, 52). Then, the control means (90) sends the air flow from the relationship between the wind speed of the air flowing through the air conditioning means (51, 52) and the air humidity control amount by the air conditioning means (51, 52) at this time.
  • the air conditioning means (51, 52) is configured to adjust the temperature of the air by contacting air, and the air conditioning means (51 , 52) and a second temperature sensor (82) arranged on the downstream side of the air conditioning means (51, 52) in the air passage, and the control means (90) is based on the amount of change between the temperature detected by the first temperature sensor (81) and the temperature detected by the second temperature sensor (82). By adjusting the capacity, the air blowing amount of the blower fan (25, 26) is maintained at the target air blowing amount.
  • the temperature of the air is adjusted by the air coming into contact with the air conditioning means (51, 52).
  • the air conditioning means (51, 52) when the temperature of the air is controlled by bringing air into contact with the air conditioning means (51, 52), the air conditioning means (51, 52) according to the wind speed of the air flowing through the air conditioning means (51, 52).
  • the amount of air temperature change due to changes That is, for example, as the wind speed of the air flowing through the air conditioning means (51, 52) increases, the heat transfer coefficient between the air conditioning means (51, 52) and the air increases, and this air conditioning means (51, 52) ) Will increase the amount of air temperature change.
  • the amount of air temperature change by the air conditioning means (51, 52) decreases.
  • the air flow rate of the blower fan (25, 26) is adjusted using the relationship between the wind speed and the temperature change amount in the air conditioning means (51, 52).
  • the control means (90) includes the detected temperature of the first temperature sensor (81) upstream of the air conditioning means (51, 52) and the second temperature sensor downstream of the air conditioning means (51, 52). Based on the detected temperature in (82), calculate the amount of air temperature change before and after the air conditioning means (51, 52). Then, the control means (90) determines the blower fan (25,26) from the relationship between the speed of the air flowing through the air conditioning means (51,52) and the amount of change in the air temperature by the air conditioning means (51,52).
  • the rotational speed detection means (85, 86) for detecting the motor rotational speed of the blower fan (25, 26) and the blower fan (25, 26)
  • Input detection means (87, 88) for detecting motor input current or motor input power
  • the control means (90) is configured to detect the motor rotation speed detected by the rotation speed detection means (85, 86) and input detection. Based on the motor input current or motor input power detected by the means (87,88), adjust the blowing capacity of the blower fan (25,26) to adjust the supply of the blower fan (25,26). It is characterized by maintaining the air volume at the target air volume.
  • the control means (90) includes the motor rotation speed detected by the rotation speed detection means (85, 86) and the input detection means ( Based on the motor input current (motor input power) detected in (87, 88), the current blown amount of the blower fan (25, 26) is estimated. And a control means (90) adjusts the ventilation capacity
  • the casing (11) is provided with an air supply passage and an exhaust passage as the air passage, and the air supply passage includes An air supply fan (26) that is arranged and supplies outdoor air to the room and an exhaust fan (25) that is arranged in the exhaust passage and exhausts the room air to the outside are housed as blower fans, and the control means
  • (90) indicates that the air supply fan (26) has a blowing capacity so as to maintain the air supply amount of the air supply fan (26) at the target air supply amount even if the airflow resistance of the air supply fan (26) changes. Even if the air supply resistance of the air supply side control section (91) to be adjusted and the exhaust fan (25) changes, the exhaust fan (25) is controlled so that the air supply amount of the exhaust fan (25) is maintained at the target exhaust amount.
  • An exhaust side control unit (92) for adjusting the air blowing capacity is provided.
  • the outdoor air is supplied into the room via the supply passage by operating the air supply fan (26) and the exhaust fan (25), and at the same time, the indoor air is exhausted. It is discharged out of the room through the service passage.
  • Supply side control unit for example, when the air blowing resistance of the air supply fan (26) increases and the actual air flow rate of the air supply fan (26) falls below the target air flow rate, Supply side control unit
  • the exhaust side control unit (92) Adjusts the ventilation capacity of (25). As a result, the air flow rate of the exhaust fan (25) is controlled to keep the target air flow rate.
  • control means (90) is also connected to the blower fan even when the blower resistance of the blower fan (25, 26) changes due to dust accumulation in the air conditioning means (51, 52).
  • the air blowing capacity of (25, 26) is adjusted to keep the air blowing amount of the air blowing fan (25, 26) at the target air blowing amount. For this reason, even if a ventilator is used over a long period of time, the indoor ventilation amount can be kept constant. Therefore, cleanliness and comfort in the room can be reliably maintained by this ventilator, and the reliability of the ventilator can be improved.
  • the air flow rate of the blower fans (25, 26) can be reliably maintained at the target air flow rate using the wind speed sensor.
  • the filter (61, 62) is disposed upstream of the air conditioning unit (51, 52) so that dust adheres to the air conditioning unit (51, 52). Accumulation can be suppressed. Therefore, the air-conditioning means (51, 52) can be protected, and a decrease in the temperature adjustment capability and humidity adjustment capability of the air-conditioning means (51, 52) can be avoided.
  • the filter (61, 62) when the filter (61, 62) is arranged in the air passage in this way, the pressure loss in the filter (61, 62) is likely to increase.
  • the filter (61, 62) Pressure sensors (73, 74, 75, 76) are arranged on the upstream side and downstream side, respectively. Based on the pressure difference detected by each pressure sensor (73, 74, 75, 76), the blower fan (25, 26) Adjust the air blowing capacity! Therefore, even if the ventilation resistance of the blower fan (25, 26) changes due to the pressure loss of the filter (61, 62) in particular, the blower fan (25, 26) reliably delivers the target blower volume. Can be kept in.
  • the pressure loss of the filter (61, 62) and the air conditioning means (51, 52) is also detected by the pressure sensors (73, 74, 75, 76). .
  • the air flow rate of the blower fan (25, 26) is targeted. The air flow can be reliably maintained.
  • the air blowing fan (25, 26) using the humidity sensor (77, 78, 79, 80). Can be reliably maintained at the target air flow rate.
  • the humidity in the room can be adjusted with high accuracy.
  • the sixth aspect of the present invention it is possible to reliably keep the air flow rate of the blower fan (25, 26) at the target air flow rate using the temperature sensor (81, 82). Further, by controlling the temperature adjustment capability of the air conditioning means (51, 52) based on the detected humidity of the temperature sensor (81, 82), the indoor temperature can be accurately adjusted.
  • the motor rotational speed and motor input current of the blower fan (25, 26).
  • Motor input power can be used to keep the blower fan (25, 26) at the target airflow.
  • both the air flow rate (air supply rate) of the air supply fan (26) and the air flow rate (exhaust air amount) of the exhaust fan (25) are individually controlled, and each target feed rate is controlled.
  • the air volume is maintained. Therefore, the indoor ventilation amount can be kept constant, and the cleanliness and comfort of the room can be reliably maintained by this ventilation device.
  • the exhaust amount is slightly increased from the supply amount to keep the room in a negative pressure state, or the exhaust amount is slightly less than the supply amount to keep the room in a positive pressure state. Ventilation control is also possible. Therefore, ventilation according to indoor conditions can be performed by this ventilation device.
  • FIG. 1 is a perspective view showing a schematic configuration of a ventilator according to Embodiment 1.
  • FIG. 1 is a perspective view showing a schematic configuration of a ventilator according to Embodiment 1.
  • Fig. 2 is a configuration diagram of a schematic configuration of the ventilator in plan view, right side view, and left side view.
  • FIG. 3 is a piping system diagram showing the configuration of the refrigerant circuit, where (A) shows the operation during the first operation, and (B) shows the operation during the second operation. It is.
  • FIG. 4 is a schematic perspective view of an adsorption heat exchanger.
  • FIG. 5 is a schematic configuration diagram of a control means.
  • FIG. 6 is a schematic configuration diagram of a ventilator showing an air flow during the first operation of the dehumidifying operation.
  • FIG. 7 is a schematic configuration diagram of a ventilator showing an air flow during the second operation of the dehumidifying operation.
  • FIG. 8 is a schematic configuration diagram of the ventilator showing the air flow during the first operation of the humidifying operation.
  • FIG. 9 is a schematic configuration diagram of a ventilator showing the air flow during the second operation of the humidifying operation.
  • FIG. 10 is a schematic configuration diagram of a ventilator showing another arrangement example of the wind speed sensor.
  • FIG. 11 is a plan view, a right side view, and a schematic configuration of the ventilator of the second embodiment.
  • FIG. 6 is a configuration diagram of the left side view.
  • Fig. 12 is a schematic configuration diagram of a ventilator showing another example of arrangement of pressure sensors.
  • Fig. 13 is a plan view, a right side view, showing a schematic configuration of the ventilator of embodiment 3.
  • FIG. 6 is a configuration diagram of the left side view.
  • FIG. 14 is a schematic configuration diagram of a control means.
  • FIG. 15 is a schematic configuration diagram of a ventilator showing another arrangement example of the humidity sensor.
  • FIG. 16 is a plan view, a right side view, and a schematic diagram showing a schematic configuration of the ventilator according to the fourth embodiment.
  • FIG. 6 is a configuration diagram of the left side view.
  • FIG. 17 is a configuration diagram showing a schematic configuration of the ventilator of Embodiment 5 in a plan view, a right side view, and a left side view.
  • FIG. 18 is a schematic configuration diagram of a ventilator according to a first modification of the other embodiment, wherein (A) shows the operation during the first operation, and (B) shows the second operation. It shows the operation during operation.
  • FIG. 19 is a schematic perspective view of a humidity control unit in a second modification of the other embodiment.
  • Embodiment 1 of the present invention will be described.
  • the ventilator (10) of the present embodiment supplies outdoor air (OA) to the room and simultaneously discharges indoor air (RA) to the outside.
  • the ventilator (10) has an indoor humidity control function, and can dehumidify and humidify the room.
  • the ventilation device (10) will be described with reference to FIGS. Unless otherwise specified, “upper”, “lower”, “left”, “right”, “front”, “rear”, “front”, and “back” used in the description here refer to the ventilation device (10) on the front side. It means the direction when looking at force.
  • the ventilation device (10) includes a casing (11). In the casing (11) The refrigerant circuit (50) is accommodated.
  • the refrigerant circuit (50) includes a first adsorption heat exchanger (51), a second adsorption heat exchanger (52), a compressor (53), a four-way switching valve (54), and an electric expansion valve (55). It is connected. Details of the refrigerant circuit (50) will be described later.
  • the casing (11) is formed in a rectangular parallelepiped shape that is slightly flat and relatively low in height.
  • a front panel (12) is erected on the left front side in FIG. 1, and a rear panel (13) is erected on the right rear side in FIG.
  • the casing (11) has substantially the same length in the front-rear direction and the width in the left-right direction.
  • the exhaust port (21) is opened to the left and the air supply port (22) is opened to the right.
  • an outside air inlet (23) is opened at a position closer to the upper side, and an inner air inlet (24) is opened at a position closer to the lower side.
  • the internal space of the casing (11) is partitioned into a part on the front panel (12) side and a part on the back panel (13) side.
  • the space on the front panel (12) side in the casing (11) is cut into two left and right spaces.
  • the left space constitutes the exhaust fan chamber (35)
  • the right space constitutes the air supply fan chamber (36).
  • the exhaust fan chamber (35) communicates with the outdoor space via the exhaust port (21).
  • the exhaust fan chamber (35) accommodates an exhaust fan (25), and the outlet of the exhaust fan (25) is connected to the exhaust port (21)!
  • the air supply fan chamber (36) communicates with the indoor space via the air supply port (22).
  • An air supply fan (26) is accommodated in the air supply fan chamber (36), and an air outlet of the air supply fan (26) is connected to the air supply port (22).
  • the supply fan chamber (36) also houses a compressor (53).
  • the space on the back panel (13) side in the casing (11) is separated by the first partition plate (16) and the second partition plate (17) standing in the casing (11). It is divided into two spaces.
  • These partition plates (16, 17) extend in the left-right direction of the casing (11).
  • the first cutting plate (16) is located closer to the rear panel (13), and the second divider (17) is closer to the front panel (12)! Speak.
  • the space behind the first partition plate (16) is divided into two upper and lower spaces.
  • the upper space constitutes an outside air channel (32), and the lower space constitutes an inside air channel (34).
  • the outside air flow path (32) communicates with the outdoor space via the outside air inlet (23).
  • An outside air filter (61) is arranged in the outside air channel (32) so as to cross the left and right inner walls of the casing (11).
  • the outside air filter (61) collects dust in the outdoor air taken in from the outside air inlet (23).
  • the room air side channel (34) communicates with the room through the room air inlet (24).
  • an inside air filter (62) is arranged so as to cross across the left and right inner walls of the casing (11). This room air filter (62) collects dust in the room air that is taken in by the room air inlet (24) force.
  • the space in front of the second partition plate (17) is partitioned into two upper and lower spaces, the upper space being the exhaust side flow path (31) and the lower space being the air supply side flow path (33 ).
  • the exhaust side flow path (31) communicates with the exhaust fan chamber (35).
  • the air supply side channel (33) communicates with the air supply fan chamber (36).
  • the space between the first partition plate (16) and the second partition plate (17) is further divided into two left and right spaces by the central partition plate (18).
  • the space on the right side of the central partition (18) constitutes the first heat exchange chamber (37), and the space on the left side constitutes the second heat exchange chamber (38).
  • the first heat exchanger chamber (37) accommodates the first adsorption heat exchanger (51), and the second heat exchanger chamber (38) accommodates the second adsorption heat exchanger (52).
  • These two adsorption heat exchanges (51, 52) are arranged so as to traverse the heat exchange chamber (37, 38) in which they are accommodated in the left-right direction!
  • the first partition plate (16) is provided with four openable dampers (41 to 44). Specifically, in the first partition plate (16), the first damper (41) is located on the upper right side, the second damper (42) is located on the upper left side, and the third damper (43) is located on the lower left side. A fourth damper (44) is attached to the bottom of each.
  • the first damper (41) is opened, the outside air flow path (32) and the first heat exchange chamber (37) communicate with each other.
  • the second damper (42) is opened, the outside air flow path (32) and the second heat exchanger chamber (38) communicate with each other.
  • the third damper (43) is opened, the inside air flow path (34) and the first heat exchanger chamber (37) communicate with each other.
  • the second partition plate (17) is provided with four openable dampers (45 to 48). Specifically, in the second partition plate (17), the fifth damper (45) is located on the upper right side, the sixth damper (46) is located on the upper left side, and the seventh damper (47) is located on the lower right side. The eighth damper (48) is attached to the bottom of each.
  • the fifth damper (45) is opened, the exhaust side flow path (31) and the first heat exchange chamber (37) communicate with each other.
  • the sixth damper (46) is opened, the exhaust side flow path (31) and the second heat exchange chamber (38) communicate with each other.
  • an air passage is formed in the casing (11).
  • This air passage is a passage for air supply to the outside air side flow path (32), each heat exchanger chamber (37, 38), the air supply side flow path (33), and the air supply fan chamber (36).
  • an exhaust passage to the inside air side flow path (34), each heat exchanger chamber (37, 38), the exhaust side flow path (31), and the exhaust fan chamber (35) air Details of this process will be described later.
  • the refrigerant circuit (50) will be described with reference to FIG.
  • the refrigerant circuit (50) includes a first adsorption heat exchange (51), a second adsorption heat exchange (52), a compressor (53), a four-way switching valve (54), and an electric expansion valve ( 55) is a closed circuit.
  • the refrigerant circuit (50) performs a vapor compression refrigeration cycle by circulating the filled refrigerant.
  • the compressor (53) has a discharge side on the first port of the four-way selector valve (54) and an inlet side on the second port of the four-way selector valve (54). Each port is connected.
  • One end of the first adsorption heat exchange (51) is connected to the third port of the four-way switching valve (54).
  • the other end of the first adsorption heat exchanger (51) is connected to one end of the second adsorption heat exchanger (52) via the electric expansion valve (55).
  • the other end of the second adsorption heat exchanger (52) is connected to the fourth port of the four-way switching valve (54).
  • the four-way switching valve (54) has a first state in which the first port communicates with the third port and the second port communicates with the fourth port (the state shown in FIG. 3A). Can be switched to the second state (the state shown in Fig. 3 (B)) in which the first port communicates with the fourth port and the second port communicates with the third port. .
  • the first adsorption heat exchanger (51) and the second adsorption heat exchanger (52) constitute the air conditioning means of the present invention, both of which are cross-fin type fins. It is composed of an and tube heat exchanger.
  • These adsorption heat exchanges (51, 52) are provided with a copper heat transfer tube (58) and an aluminum fin (57).
  • the plurality of fins (57) provided in the adsorption heat exchange (51, 52) are each formed in a rectangular plate shape and arranged at regular intervals.
  • the heat transfer tube (58) is provided so as to penetrate each fin (57).
  • each of the adsorption heat exchanges (51, 52) an adsorbent is supported on the surface of each fin (57), and air passing between the fins (57) is supported on the fin (57). In contact with the adsorbent formed.
  • this adsorbent those capable of adsorbing water vapor in the air, such as zeolite, silica gel, activated carbon, and organic high molecular weight material having a hydrophilic functional group are used.
  • the ventilation device (10) of the present embodiment includes a supply air speed sensor (71), an exhaust air speed sensor (72), and a controller (90).
  • the air supply air speed sensor (71) is in the vicinity of the outside air inlet (23) in the outside air channel (32) and downstream of the outside air filter (61). Arranged on the side.
  • the supply air speed sensor (71) detects the air speed of the air flowing through the outside air flow path (32).
  • the exhaust air velocity sensor (72) is disposed in the vicinity of the inside air suction port (24) in the inside air channel (34) and downstream of the inside air filter (62).
  • the exhaust wind speed sensor (72) detects the wind speed of the air flowing through the inside air flow path (34).
  • the controller (90) shown in FIG. 5 constitutes a control means for adjusting the air blowing capacity of the air supply fan (26) and the exhaust fan (25).
  • the controller (90) is provided with an air supply side control unit (91), an exhaust side control unit (92), and a setting unit (93).
  • a target supply amount of supply air (SA) to the room and a target exhaust amount of exhaust air (EA) to the outside are set.
  • SA supply air
  • EA target exhaust amount of exhaust air
  • These target air supply amount and target exhaust air amount may be appropriately determined by the contractor according to the indoor conditions at the time of introduction of the ventilator (10), or may be changed and determined appropriately by the user using a remote controller or the like. It may be.
  • the air speed detected by the air supply air speed sensor (71) is appropriately received by the air supply side control section (91).
  • the supply side control unit (91) is based on the wind speed detected by the supply air speed sensor (71).
  • the motor rotation speed of the air supply fan (26) is adjusted so that the air supply amount of the air supply fan (26) is maintained at the target air supply amount.
  • the exhaust side control unit (92) appropriately receives the wind speed detected by the exhaust wind speed sensor (72). Based on the wind speed detected by the exhaust wind speed sensor (72), the exhaust side control unit (92) controls the exhaust fan (25) to maintain the air flow rate of the exhaust fan (25) at the target exhaust volume. Adjust the motor speed. Details of the air volume control of each fan (25, 26) by the controller (90) will be described later.
  • a dehumidifying operation and a humidifying operation are performed.
  • the ventilator (10) during dehumidifying operation or humidifying operation adjusts the taken outdoor air (OA) and supplies it to the room as supply air (SA), and at the same time, discharges the taken indoor air (RA). Discharge outside as air (EA).
  • the ventilator (10) during dehumidifying operation or humidifying operation ventilates the room.
  • the air supply fan (26) and the exhaust fan (25) are operated.
  • the outdoor air is also taken into the casing (11) as the first air from the outside air suction port (23).
  • the exhaust fan (25) is operated, the room air is taken as the second air into the inside air intake (24) force casing (11).
  • the first operation and the second operation are alternately repeated at a predetermined time interval (for example, every 3 minutes).
  • the four-way switching valve (54) is set to the first state.
  • the refrigerant circulates to perform a refrigeration cycle.
  • the refrigerant discharged by the compressor (53) is discharged in the order of the first adsorption heat exchange (51), the electric expansion valve (55), and the second adsorption heat exchange (52).
  • the first adsorption heat exchanger (51) becomes a condenser and the second adsorption heat exchanger (52) becomes an evaporator.
  • the first adsorption heat exchanger (51) moisture is desorbed from the adsorbent heated by the refrigerant, and the desorbed moisture is given to the second air.
  • the second air, which has been given moisture in the first adsorption heat exchange (51) flows into the exhaust-side flow path (31) through the fifth damper (45), passes through the exhaust fan chamber (35), and then enters the exhaust port. It will be discharged outside through (21).
  • the four-way switching valve (54) is set to the second state.
  • the refrigerant circulates to perform a refrigeration cycle.
  • the refrigerant discharged by the compressor (53) is discharged in the order of the second adsorption heat exchange (52), the electric expansion valve (55), and the first adsorption heat exchange (51).
  • the second adsorption heat exchanger (52) becomes a condenser and the first adsorption heat exchanger (51) becomes an evaporator.
  • the second adsorption heat exchanger (52) moisture is desorbed from the adsorbent heated by the refrigerant, and the desorbed moisture is given to the second air.
  • the second air which has been given moisture by the second adsorption heat exchanger (52), flows into the exhaust side flow path (31) through the sixth damper (46) and passes through the exhaust fan chamber (35) before being exhausted. It is discharged out of the room through the mouth (21).
  • the supply fan (26) and the exhaust fan (25) are operated.
  • the outdoor air is also taken as the second air into the casing (11) as well as the force of the outdoor air inlet (23).
  • the exhaust fan (25) is operated, the room air is taken as the first air into the inside air intake (24) force casing (11).
  • the first operation and the second operation are alternately repeated at a predetermined time interval (for example, every 3 minutes).
  • the four-way switching valve (54) is set to the first state.
  • the first adsorption heat exchanger (51) becomes a condenser and the second adsorption heat exchanger (52) becomes an evaporator.
  • the moisture in the first air is adsorbed by the adsorbent, and the heat of adsorption generated at that time is absorbed by the refrigerant.
  • the first air deprived of moisture in the second adsorption heat exchanger (52) flows into the exhaust side flow path (31) through the sixth damper (46) and is exhausted after passing through the exhaust fan chamber (35). It is discharged out of the room through the mouth (21).
  • the second air humidified by the first adsorption heat exchange (51) flows through the seventh damper (47) into the supply side flow path (33) and passes through the supply fan chamber (36) before being supplied. It is supplied into the room through the mouth (22).
  • the four-way switching valve (54) is set to the second state.
  • the second adsorption heat exchanger (52) serves as a condenser and the first adsorption heat exchanger (51) serves as an evaporator.
  • the second damper (42), the third damper (43), the fifth damper (45), and the eighth damper (48) are in the open state.
  • the remaining dampers (41, 44, 46, 47) are closed.
  • the first adsorption heat exchanger (51) moisture in the first air is adsorbed by the adsorbent, and the adsorption heat generated at that time is absorbed by the refrigerant.
  • the first air deprived of moisture by the first adsorption heat exchanger (51) flows into the exhaust side flow path (31) through the fifth damper (45), and is exhausted after passing through the exhaust fan chamber (35). It is discharged out of the room through the mouth (21).
  • the second adsorption heat exchanger (52) moisture is desorbed from the adsorbent heated by the refrigerant, and the desorbed moisture is given to the second air.
  • the second air humidified by the second adsorption heat exchanger (52) flows through the eighth damper (48) into the supply side flow path (33) and passes through the supply fan chamber (36). It is supplied into the room through the air supply port (22).
  • the air supply air speed sensor The wind speed detected at (71) decreases.
  • the air supply side control unit (91) calculates the current air supply amount of the wind power supply fan (26).
  • the air supply side control unit (91) calculates and updates the motor rotation speed necessary to bring the calculated air supply amount closer to the target air supply amount, and the current motor rotation of the air supply fan (26). Increase the speed to this required motor speed.
  • the air supply amount of the air supply fan (26) increases and is maintained at the target air supply amount.
  • the exhaust wind speed sensor (72) calculates the current exhaust amount of the exhaust fan (25) from this wind speed.
  • the exhaust side control unit (92) calculates and updates the motor rotation speed necessary to bring the calculated displacement close to the target displacement, and the current motor rotation speed of the exhaust fan (25) is required. Increase to motor speed. As a result, the exhaust amount of the exhaust fan (25) increases and is maintained at the target exhaust amount.
  • the wind speed sensors (71, 72) are arranged in the supply side passage and the exhaust side passage, respectively, and each fan is based on the wind speed detected by each wind speed sensor (71, 72). Adjust the fan capacity of each fan (25,26) so that the airflow of (25,2 6) is maintained at the target airflow. I try to do it. For this reason, even if the ventilation resistance of the air supply fan (26) and the exhaust fan (25) changes, the indoor ventilation amount can be reliably kept constant. Therefore, even if this ventilator is used for a long period of time, the cleanliness and comfort of the room can be reliably maintained, and the reliability of the ventilator can be improved.
  • the air flow rates of the air supply fan (26) and the exhaust fan (25) are individually controlled to maintain the respective target air flow rates.
  • a ventilation control that keeps the room in a negative pressure state by slightly increasing the exhaust amount from the supply air amount, or keeping the room in a positive pressure state by slightly reducing the exhaust amount from the supply air amount. Is also possible. Therefore, ventilation according to indoor conditions can be performed by this ventilation device.
  • the supply air speed sensor (71) is arranged in the supply side flow path (33) and the supply fan chamber (36). Also good. Further, the exhaust air speed sensor (72) may be disposed in the exhaust side flow path (31) or the exhaust fan chamber (35). That is, the air supply air speed sensor (71) may be arranged at any location as long as it is an air supply passage until outdoor air (OA) is supplied indoors. Further, the exhaust air velocity sensor (72) may be disposed at any location as long as it is an exhaust passage until the indoor air (RA) is discharged outside the room.
  • one wind speed sensor (71) may be arranged in one of the heat exchanger chambers (for example, the first heat exchanger chamber (37)).
  • the air volume control of the air supply fan (26) and the exhaust fan (25) is performed in conjunction with the switching between the first operation and the second operation described above.
  • the air conveyed to the air supply fan (26) passes through the first heat exchange chamber (37). For this reason, during these operations, the wind speed detected by the wind speed sensor (71) becomes the wind speed of the carrier air of the air supply fan (26). Therefore, during these operations, the required motor rotation speed of the air supply fan (26) is appropriately updated by the air supply side control unit (91) based on the wind speed detected by the wind speed sensor (71). The air supply amount of the air supply fan (26) can be maintained at the target air supply amount.
  • the exhaust fan (25) The air conveyed to the first passes through the first heat exchange chamber (37). Therefore, during these operations, the wind speed detected by the wind speed sensor (71) becomes the wind speed of the air transported by the exhaust fan (25). Therefore, during these operations, the exhaust side control unit (92) appropriately updates the required motor rotation speed of the exhaust fan (25) based on the wind speed detected by the wind speed sensor (71). The displacement of 25) can be maintained at the target displacement.
  • the ventilation device (10) of the second embodiment is different from the above embodiment in the configuration of the sensor and the controller.
  • pressure sensors are provided in the air passage of the ventilation device (10) of the present embodiment instead of the wind speed sensor (71, 72) of the first embodiment. Is provided. These pressure sensors include a first supply pressure sensor (73), a first exhaust pressure sensor (74), a second supply pressure sensor (75), and a second exhaust pressure sensor (76). .
  • the first air supply pressure sensor (73) is disposed in the vicinity of the outside air inlet (23) in the outside air channel (32) and upstream of the outside air filter (61). .
  • the first air pressure sensor (73) detects the pressure of the air flowing through the outside air flow path (32).
  • the first exhaust pressure sensor (74) is disposed in the vicinity of the internal air suction port (24) in the internal air side flow path (34) and upstream of the internal air filter (62).
  • the first exhaust pressure sensor (74) detects the pressure of the air flowing through the inside air flow path (34).
  • the second air supply pressure sensor (75) is disposed in the air supply fan chamber (36).
  • the second supply pressure sensor (75) detects the pressure of the air supplied into the room.
  • the second exhaust pressure sensor (76) is disposed in the exhaust fan chamber (35). The second exhaust pressure sensor (76) detects the pressure of the air discharged outside the room.
  • the ventilation control operation of the ventilation device (10) of Embodiment 2 will be described.
  • the first supply pressure sensor (73 ) And the detected pressure of the second air supply pressure sensor (75) increase.
  • the air supply side control unit (91) calculates the current air supply amount of the air supply fan (26) based on the difference between these detected pressures, that is, the ventilation resistance of the air supply fan (26)! To do.
  • the air supply side control unit (91) calculates and updates the motor rotation speed necessary to bring the calculated supply air amount closer to the target air supply amount, and sets the current motor rotation speed of the air supply fan (26). Increase the required motor rotation speed. As a result, the air supply fan
  • the air supply amount of (26) is increased and maintained at the target air supply amount.
  • the first exhaust pressure sensor ( The difference between the detected pressure of 74) and the detected pressure of the second exhaust pressure sensor (76) increases.
  • the exhaust side control unit (92) calculates the current exhaust amount of the exhaust fan (25) based on the difference between these detected pressures, that is, the blowing resistance of the exhaust fan (25).
  • the exhaust side control unit (92) calculates and updates the motor rotation speed necessary to bring the calculated displacement close to the target displacement, and updates the current motor rotation speed of the exhaust fan (25) to this required motor rotation. Increase to speed!] As a result, the exhaust amount of the exhaust fan (25) increases and is maintained at the target exhaust amount.
  • each pressure sensor (73, 74, 75, 76) is arranged so as to sandwich each filter (61, 62) and each adsorption heat exchange (51, 52), and each pressure sensor ( 73, 74, 75, 7 6) Based on the detected pressure difference !, the air supply capacity of the air supply fan (26) and exhaust fan (25) is adjusted. Therefore, even if the blowing resistance of each fan (25, 26) increases as the pressure loss of each filter (61, 62) and each adsorption heat exchanger ⁇ (51, 52) increases, each fan (25 , 26) can be reliably maintained at the target air flow rate.
  • the second supply pressure sensor (75) of the second embodiment is arranged downstream of the outdoor air filter (61) in the outdoor air flow path (32), and the second supply pressure sensor of the second embodiment is used.
  • the exhaust pressure sensor (76) may be disposed downstream of the inside air filter (62) in the inside air flow path (34).
  • the air blowing capacity of each fan (25, 26) is adjusted by taking into account only the change in air flow resistance due to the accumulation of dust in the outside air filter (61) and the inside air filter (62). Is called.
  • each filter (61, 62) is set to be relatively high, and dust is easily clogged by each filter (61, 62), while each adsorption heat exchanger (51, 52) This is effective in configurations where dust does not accumulate easily.
  • a pressure sensor for detecting atmospheric pressure outside the ventilator (10) is provided without providing the first supply pressure sensor (73) and the first exhaust pressure sensor (74) of the second embodiment. It may be arranged.
  • the blowing resistance of the air supply fan (26) is obtained from the difference between the atmospheric pressure detected by the pressure sensor and the detected pressure of the second air supply pressure sensor (75), and the air supply fan (26 ) Can be adjusted.
  • the ventilation resistance of the exhaust fan (25) is adjusted by obtaining the blowing resistance of the exhaust fan (25) from the difference between the atmospheric pressure detected by the pressure sensor and the detected pressure of the second exhaust pressure sensor (76). It becomes possible.
  • the ventilator (10) of the third embodiment is different from the above embodiment in the configuration of the sensor and the controller.
  • two humidity sensors (77, 78) are provided in the air passage of the ventilation device (10) of the present embodiment. These humidity sensors consist of a first humidity sensor (77) and a second humidity sensor (79)! RU
  • the first humidity sensor (77) is arranged on the upstream side of the first adsorption heat exchanger (51) in the first heat exchanger chamber (37).
  • the first humidity sensor (77) detects the absolute humidity of the air before being conditioned by the first adsorption heat exchanger (51).
  • the second humidity sensor (79) is disposed downstream of the first adsorption heat exchanger (51) in the first heat exchanger chamber (37).
  • the second humidity sensor (79) detects the absolute humidity of the air after being conditioned by the first adsorption heat exchanger (51).
  • the controller (90) of Embodiment 3 receives the absolute humidity detected by the first humidity sensor (77) and the second humidity sensor (79). As shown in FIG. 14, the controller (90) stores a database function that is input when the ventilator (10) is shipped or installed. A storage unit (94) is provided.
  • the air humidity adjustment amount (change in the humidity of the air before and after the air conditioning means) depends on the wind speed of the air flowing through the adsorption heat exchanger. Amount) changes. That is, for example, as the wind speed of the air flowing through the adsorption heat exchanger increases, the turbulence of the air flow passing through the adsorption heat exchange increases, and the exchange of water between the air and the adsorbent is promoted. Therefore, the humidity control amount of air by the adsorption heat exchanger increases.
  • the humidity control amount of the air by the adsorption heat exchange decreases. Further, the humidity adjustment amount of the air by the adsorption heat exchange varies depending on the refrigerant circulation amount of the refrigerant circuit, that is, the operating frequency of the compressor connected to the refrigerant circuit.
  • the storage unit (94) described above stores a database function for obtaining the actual air flow rate of the air supply fan (26) and the exhaust fan (25) using such characteristics,
  • the above database function is used to calculate the actual supply amount of the supply fan (26) and the actual exhaust amount of the exhaust fan (25). It consists of an exhaust side database function.
  • the above air supply side database function uses the outdoor air (OA) absolute humidity, the supply air (SA) absolute humidity, and the operating frequency of the compressor (53) as basic parameters.
  • the exhaust side database function has the basic parameters of the absolute humidity of the room air (RA), the absolute humidity of the exhaust air (EA), and the operating frequency of the compressor (53).
  • the absolute humidity of each air is appropriately detected by each of the humidity sensors (77, 79), and is a parameter for determining the humidity change amount of the air before and after the adsorption heat exchanger (51). .
  • the operating frequency of the compressor (53) is such that the compressor (53) force is also appropriately output to the controller (90).
  • the adsorption heat exchange is caused by the change in the circulation amount of the refrigerant. This is a parameter for taking into account the change in the amount of air conditioning by the vessel (51).
  • the ventilation control of the air supply fan (26) and the exhaust fan (25) is performed in conjunction with the switching between the first operation and the second operation described above.
  • the air conveyed to the air supply fan (26) passes through the first heat exchange chamber (37). Therefore, during these operations, the first humidity sensor (77) detects the humidity of the outdoor air (OA), and the second humidity sensor (79) detects the humidity of the supply air (SA). Become.
  • the supply-side control unit (91) applies the detected humidity of each humidity sensor (77, 79) and the current operating frequency of the compressor (53) to the above-mentioned supply-side database function. Calculate the current air supply of the fan (26).
  • the air supply side control unit (91) Calculate and update the motor speed required to bring the air flow closer to the target air supply, and increase the current motor speed of the air supply fan (26) to this required motor speed. As a result, the air supply amount of the air supply fan (26) increases and is maintained at the target air supply amount.
  • Air conveyed to (25) passes through the first heat exchange chamber (37). Therefore, during these operations, the first humidity sensor (77) detects the humidity of the indoor air (RA), and the second humidity sensor (79) detects the humidity of the exhaust air (EA). Become. During these operations, the exhaust side control unit (92) applies the detected humidity of each humidity sensor (77, 79) and the current operating frequency of the compressor (53) to the exhaust side database function, and the exhaust fan ( Calculate the current displacement of 25).
  • the exhaust side control unit (92) uses the calculated exhaust amount as the target exhaust amount. Calculate and update the motor rotation speed necessary to approach the current to increase the current motor rotation speed of the exhaust fan (25) to this required motor rotation speed. As a result, the displacement of the exhaust fan (25) increases and is maintained at the target displacement.
  • the first supply humidity sensor (77) is disposed downstream of the outside air filter (61) in the outside air flow path (32), and the downstream side of the inside air filter (62) in the inside air flow path (34).
  • the first exhaust humidity sensor (78) is located in Further, the second supply humidity sensor (79) is arranged in the supply fan chamber (36), and the second exhaust humidity sensor (80) is arranged in the exhaust fan chamber (35).
  • the first supply humidity sensor (77) is the absolute humidity of outdoor air (OA)
  • the first exhaust humidity sensor (78) is the absolute humidity of indoor air (RA)
  • the second supply humidity sensor (79) is The absolute humidity of the supply air (SA) is detected
  • the second exhaust humidity sensor (80) detects the absolute humidity of the exhaust air (EA).
  • the air supply capacity of the air supply fan (26) and the exhaust fan (25) is adjusted without interlocking with the switching between the first operation and the second operation. That is, the air supply side control unit (91) is configured to supply the air supply fan based on the humidity change detected by the first air supply humidity sensor (77) and the second air supply humidity sensor (79). Adjust (26) so that the air supply is maintained at the target air supply.
  • the exhaust side control unit (92) determines the exhaust amount of the exhaust fan (25) based on the humidity detected by the first exhaust humidity sensor (78) and the second exhaust humidity sensor (80). Adjust to maintain volume.
  • the humidity of the adsorption heat exchanger (51, 52) is controlled using each humidity sensor, and the humidity of the supply air (SA) can be adjusted to the target humidity. It becomes possible to adjust the indoor humidity with high accuracy.
  • the ventilation device (10) of the fourth embodiment is different from the above embodiment in the configuration of the sensor and the controller.
  • two temperature sensors (81, 82) are provided in the air passage of the ventilation device (10) of the present embodiment. These temperature sensors consist of a first temperature sensor (81) and a second temperature sensor (82)! RU
  • the first temperature sensor (81) includes a first adsorption heat exchanger (51) in the first heat exchanger chamber (37). It is arranged on the upstream side.
  • the first temperature sensor (81) detects the temperature of the air before being conditioned by the first adsorption heat exchanger (51).
  • the second temperature sensor (82) is disposed downstream of the first adsorption heat exchanger (51) in the first heat exchanger chamber (37).
  • the second temperature sensor (82) detects the temperature of the air after being conditioned by the first adsorption heat exchanger (51).
  • the controller (90) of Embodiment 4 receives the temperatures detected by the first temperature sensor (81) and the second temperature sensor (82).
  • the controller (90) is provided with a storage unit (94) for storing a database function input when the ventilator (10) is shipped or installed.
  • the temperature of the air changes because heat is exchanged between the refrigerant and the air.
  • the amount of temperature change of the air changes according to the wind speed of the air flowing through the adsorption heat exchanger. That is, for example, as the wind speed of the air flowing through the adsorption heat exchanger increases, the heat transfer coefficient between the refrigerant flowing through the adsorption heat exchange and the air increases, and the amount of temperature change of the air increases. In other words, when the wind speed of the air flowing through the adsorption heat exchanger decreases, the amount of change in the air temperature decreases. Further, the temperature change amount of the air passing through the adsorption heat exchange also varies depending on the refrigerant circulation amount of the refrigerant circuit, that is, the operating frequency of the compressor connected to the refrigerant circuit.
  • the storage unit (94) described above stores a database function for obtaining the actual air flow rate of the air supply fan (26) and the exhaust fan (25) using such characteristics,
  • the above database function includes a supply side database function for determining the actual supply amount of the supply fan (26), and an actual discharge amount of the exhaust fan (25). It consists of an exhaust side database function.
  • the supply side database function uses the temperature of the outdoor air (OA), the temperature of the supply air (SA), and the operating frequency of the compressor (53) as basic parameters.
  • the exhaust side database function has the basic parameters of the temperature of the room air (RA), the temperature of the exhaust air (EA), and the operating frequency of the compressor (53).
  • the temperature of each air is appropriately detected by each temperature sensor (81, 82), and is a parameter for determining the amount of air temperature change before and after the adsorption heat exchanger (51).
  • the operating frequency of the compressor (53) is such that the compressor (53) force is also output to the controller (90) as appropriate. This is a parameter for considering the change in the air temperature change by the adsorption heat exchanger (51) due to the change.
  • the air conveyed to the air supply fan (26) passes through the first heat exchange chamber (37). Therefore, during these operations, the first temperature sensor (81) detects the temperature of the outdoor air (OA), and the second temperature sensor (82) detects the temperature of the supply air (SA). Become. During these operations, the supply-side control unit (91) applies the detected temperature of each temperature sensor (81, 82) and the actual operating frequency of the compressor (53) to the above-mentioned supply-side database function. Calculate the current air supply of the fan (26).
  • the air supply side control unit (91) Calculate and update the motor speed required to bring the air flow closer to the target air supply, and increase the current motor speed of the air supply fan (26) to this required motor speed. As a result, the air supply amount of the air supply fan (26) increases and is maintained at the target air supply amount.
  • Air conveyed to (25) passes through the first heat exchange chamber (37). Therefore, during these operations, the temperature sensor (81) detects the temperature of the indoor air (RA), and the second temperature sensor (82) detects the temperature of the exhaust air (EA). . During these operations, the exhaust side control unit (92) applies the detected temperature of each temperature sensor (81, 82) and the actual operating frequency of the compressor (53) to the exhaust side database function, and the exhaust fan ( Calculate the actual displacement of 25).
  • the exhaust side control unit (92) uses the calculated exhaust amount as the target exhaust amount. Calculate and update the motor speed required to get closer to the actual speed of the exhaust fan (25). Increase the degree to this required motor speed. As a result, the displacement of the exhaust fan (25) increases and is maintained at the target displacement.
  • the air flow rate of each fan (25, 26) can be maintained at the target air flow rate based on the amount of change in temperature detected by the first and second temperature sensors (81, 82). it can. For this reason, also in Embodiment 4, the indoor ventilation volume can be reliably maintained constant.
  • the ventilator (10) of the fifth embodiment is different from the above embodiment in the configuration of the sensor and the controller.
  • the air supply fan (26) and the exhaust fan (25) are respectively connected to the rotational speed detection means (85, 86) and the output detection means (87). , 88) are electrically connected.
  • the rotation speed detecting means includes an air supply side pulse counter (85) for detecting the motor rotational speed of the air supply fan (26) and an exhaust side pulse counter (86) for detecting the motor rotational speed of the exhaust fan (25). ).
  • the output detection means includes an air supply side ammeter (87) for detecting the motor input current of the air supply fan (26) and an exhaust side input ammeter for detecting the motor input current of the exhaust fan (25). (88).
  • the controller (90) is provided with a storage unit (94) for storing a database function inputted at the time of shipment or installation of the ventilation device (10).
  • the above database function includes the supply side database function for determining the actual supply amount of the supply fan (26) and the exhaust side database function for determining the actual exhaust amount of the exhaust fan (25). It consists of and.
  • the supply side database function is based on the motor rotation speed and the motor input current value as basic parameters for the supply fan (26).
  • the exhaust side database function uses the motor rotation speed and motor input current value for the exhaust fan (25) as basic parameters.
  • Embodiment 5 the operating states of the air supply fan (26) and the exhaust fan (25) are appropriately monitored by the pulse counters (85, 86) and the input ammeters (87, 88).
  • the air supply side control unit (91) uses the current motor rotation speed detected by the air supply side pulse counter (85) and the current motor input current value detected by the air supply side input ammeter (87) as described above. Apply to the air supply side database function to calculate the actual air supply of the air supply fan (26). Further, the air supply side control unit (91) calculates and updates the motor rotation speed necessary to bring the calculated air supply amount close to the target air supply amount using the above air supply side database function. Increase the current motor speed of the air fan (26) to the required motor speed. As a result, the air supply amount of the air supply fan (26) increases and is maintained at the target air supply amount.
  • the exhaust side control unit (92) applies the motor rotational speed detected by the exhaust side pulse counter (86) and the motor input current value detected by the exhaust side input ammeter (88) to the above exhaust side database function. Calculate the current displacement of the exhaust fan (25). Further, the air supply side control unit (91) calculates and updates the motor rotational speed necessary to bring the calculated exhaust amount close to the target exhaust amount by using the exhaust side database function, and the exhaust fan (25). The current motor rotation speed is increased to the required motor rotation speed. As a result, the exhaust amount of the exhaust fan (25) increases and is maintained at the target exhaust amount.
  • the air flow rate of each fan (25, 26) without the above-described wind speed sensor, pressure sensor, or the like arranged in the air passage is estimated, and the air flow rate of each fan (25, 26) is estimated.
  • the target air flow can be maintained.
  • the ventilation device (10) is simply configured. be able to.
  • the motor detection current of each fan (25, 26) is appropriately detected by the output detection means (86, 88).
  • the output detection means (86, 88) 88) the motor input power of each fan (25, 26) can be detected, and the ventilation capacity of each fan (25, 26) can be adjusted based on this motor input power and motor rotation speed! ,.
  • the ventilation apparatus (10) may be comprised as follows.
  • a modified example of the ventilator (10) will be described.
  • the ventilation device (10) of the first modification includes a refrigerant circuit (100) and two adsorbing elements (111, 112).
  • the refrigerant circuit (100) is a closed circuit in which a compressor (101), a condenser (102), an expansion valve (103), and an evaporator (104) are connected in order.
  • a vapor compression refrigeration cycle is performed.
  • the first adsorbing element (111) and the second adsorbing element (112) are provided with an adsorbent such as zeolite and each constitutes an air conditioning means.
  • Each adsorbing element (111, 112) has a large number of air holes, and the air contacts the adsorbent when passing through the air holes.
  • This ventilation device (10) repeats the first operation and the second operation.
  • the ventilation device (10) in the first operation supplies air heated by the condenser (102) to the first adsorption element (111) to regenerate the adsorbent.
  • the air deprived of moisture by the second adsorption element (112) is cooled by the evaporator (104).
  • the ventilation device (10) in the second operation regenerates the adsorbent by supplying the air heated by the condenser (102) to the second adsorption element (112).
  • the air deprived of moisture by the first adsorption element (111) is cooled by the evaporator (104).
  • the ventilator (10) includes a dehumidifying operation for supplying dehumidified air to the room when passing through the adsorbing element (111, 112), and the air humidified when passing through the adsorbing element (111, 112) to the room. Switch between humidification operation and supply.
  • the supply fan is disposed in the supply passage until the outdoor air is supplied into the room, and the exhaust is performed until the room air is discharged outside the room.
  • An exhaust fan is placed in the passage.
  • the wind speed of the above-described embodiment is used.
  • the ventilation device (10) of the second modified example includes a humidity control unit (150) as air conditioning means.
  • the humidity control unit (150) includes a Peltier element (153) and a pair of suction fins (151, 152).
  • the adsorption fins (151, 152) are obtained by carrying an adsorbent such as zeolite on the surface of a so-called heat sink.
  • the suction fins (151 and 152) constitute a suction member.
  • the Peltier element (153) has a first suction fin (151) on one surface and a second suction fin (152) on the other surface. When direct current is passed through the Peltier element (153), one of the two suction fins (151, 152) becomes the heat absorption side and the other becomes the heat dissipation side.
  • This ventilation device (10) repeats the first operation and the second operation.
  • the humidity control unit (150) in the first operation regenerates the adsorbent of the first adsorption fin (151) on the heat dissipation side to humidify the air, while the second adsorption fin ( Adsorb moisture to the adsorbent of 152) to dehumidify the air.
  • the humidity control unit (150) during the first operation regenerates the adsorbent of the second adsorption fin (152) on the heat dissipation side to humidify the air, while the first adsorption fin ( Adsorb moisture to the adsorbent of 151) to dehumidify the air.
  • the ventilator (10) includes a dehumidifying operation for supplying air dehumidified when passing through the humidity control unit (150) into the room, and air humidified when passing through the humidity control unit (150). The operation is switched to the humidifying operation for supplying the air to the room.
  • the supply fan is disposed in the supply passage until the outdoor air is supplied into the room, and the exhaust is performed until the room air is discharged outside the room.
  • An exhaust fan is placed in the passage.
  • the air flow rate of the air supply fan and the exhaust fan can be maintained at the target air flow rate by using the wind speed sensor, pressure sensor, humidity sensor, temperature sensor, etc. of the above-described embodiment. .
  • An odor sensor for detecting the odor component concentration of the indoor air (RA) taken into the exhaust passage of the above embodiment is arranged, and the ventilation capacity of the exhaust fan (25) is set according to the odor component concentration detected by the odor sensor. You may make it adjust.
  • the air volume control is performed to increase the ventilation capacity of the exhaust fan (25).
  • the indoor odor component concentration can be reliably maintained below a certain level, The cleanliness can be maintained.
  • a dust sensor for detecting the dust concentration of the indoor air (RA) flowing into the exhaust passage is arranged, and the exhaust fan (25) blows air according to the dust concentration detected by the dust sensor.
  • the ability may be adjusted.
  • air volume control is performed to increase the air blowing capacity of the exhaust fan (25).
  • the indoor dust concentration can be reliably maintained below a certain level, and the indoor Cleanliness can be maintained.
  • the motor rotation speed of each fan (25, 26) is increased in accordance with the increase in the blowing resistance of the air supply fan (26) and the exhaust fan (25). Yes. However, if, for example, the outdoor pressure decreases during a typhoon and the blowing resistance of each fan (25, 26) decreases, the motor rotational speed of each fan (25, 26) must be reduced. You can also. In this case, it can be avoided that the actual air flow rate of each fan (25, 26) exceeds the target air flow rate, and the power of each fan (25, 26) is reduced to save power consumption. This comes out.
  • the air flow rate of both the air supply fan (26) and the exhaust fan (25) is individually controlled.
  • the control means (90) may be used to adjust, for example, the ventilation capacity of only the supply fan (26) or the ventilation capacity of only the exhaust fan (25). ⁇ .
  • the adsorption heat exchanger having the adsorbent supported on the surface is used as the air conditioning means.
  • this air-conditioning means is composed of heat exchange (sensible heat exchange) which is a well-known technology such as total heat exchange and exchange of sensible heat between air and refrigerant connected to a refrigerant circuit. May be.
  • the present invention is useful for a ventilator equipped with air conditioning means for adjusting the humidity and temperature of air.

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

Abstract

L'invention concerne un ventilateur dans lequel une voie d'air située dans un boîtier (11) du ventilateur (10) est équipée d'un ventilateur d'alimentation en air (26) destiné à acheminer de l'air extérieur vers l'intérieur, d'un ventilateur d'évacuation d'air (25) destiné à évacuer de l'air intérieur vers l'extérieur et d'échangeurs thermiques par absorption (91, 92) pour réguler l'humidité de l'air. Un moyen de régulation (90) évalue la quantité d'air actuelle fournie par chaque ventilateur (25, 26) sur la base du débit d'air détectée par des détecteurs de débit d'air (71, 72) et régule la capacité d'alimentation en air de chaque ventilateur (25, 26) de sorte que la quantité d'air actuelle fournie est maintenue au niveau d'une quantité d'air fournie cible.
PCT/JP2006/312621 2005-06-30 2006-06-23 Ventilateur Ceased WO2007004446A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-191051 2005-06-30
JP2005191051A JP2007010216A (ja) 2005-06-30 2005-06-30 換気装置

Publications (1)

Publication Number Publication Date
WO2007004446A1 true WO2007004446A1 (fr) 2007-01-11

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PCT/JP2006/312621 Ceased WO2007004446A1 (fr) 2005-06-30 2006-06-23 Ventilateur

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JP (1) JP2007010216A (fr)
WO (1) WO2007004446A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451303A (en) * 2007-07-27 2009-01-28 Mitsubishi Electric Corp Heat exchanging ventilator
EP2508811A1 (fr) * 2011-04-08 2012-10-10 Zehnder Verkaufs- und Verwaltungs AG Dispositif de détermination d'un débit volumique transporté par un ventilateur
JP2016080246A (ja) * 2014-10-16 2016-05-16 リンナイ株式会社 換気装置
US20160231007A1 (en) * 2015-02-09 2016-08-11 Lg Electronics Inc. Air conditioner
ITUA20163864A1 (it) * 2016-05-27 2017-11-27 Fral S R L Impianto per il recupero di calore ed il trattamento climatico dell'aria
EP2192356A4 (fr) * 2007-08-28 2018-04-11 Daikin Industries, Ltd. Régulateur d'humidité
BE1024676B1 (nl) * 2016-06-30 2018-05-24 Vero Duco Nv Klimatisatiesysteem en werkwijze voor het regelen van een klimatisatiesysteem
EP2985540B1 (fr) * 2013-04-09 2022-12-14 Panasonic Intellectual Property Management Co., Ltd. Système de régulation d'environnement atmosphérique et dispositif de commande
US20230184456A1 (en) * 2020-08-07 2023-06-15 Daikin Industries, Ltd. Fan unit
US11971188B2 (en) 2020-08-07 2024-04-30 Daikin Industries, Ltd. Fan unit and air treatment system including the same
US12163680B2 (en) 2020-08-07 2024-12-10 Daikin Industries, Ltd. Fan unit and air treatment system including the same

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JP5109592B2 (ja) * 2007-10-31 2012-12-26 ダイキン工業株式会社 調湿装置
JP5082775B2 (ja) * 2007-10-31 2012-11-28 ダイキン工業株式会社 換気装置
JP5018402B2 (ja) * 2007-10-31 2012-09-05 ダイキン工業株式会社 調湿装置
JP5402213B2 (ja) * 2009-04-27 2014-01-29 ダイキン工業株式会社 調湿装置
JP5537973B2 (ja) * 2010-01-29 2014-07-02 三洋電機株式会社 給気制御装置
JP7453028B2 (ja) * 2020-03-19 2024-03-19 東芝キヤリア株式会社 外気処理装置及び空調システム
JP7295454B1 (ja) * 2021-12-17 2023-06-21 ダイキン工業株式会社 換気システム
JP2023090579A (ja) * 2021-12-17 2023-06-29 ダイキン工業株式会社 換気装置、熱交換装置、風量の測定方法及び室内環境の判定方法

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JPH05312387A (ja) * 1992-05-12 1993-11-22 Mitsubishi Electric Corp 空気調和システム
JP2000234794A (ja) * 1999-02-12 2000-08-29 Sharp Corp 空気調和装置
JP2002235933A (ja) * 2001-02-09 2002-08-23 Mitsubishi Electric Corp 空気調和機
JP2005098573A (ja) * 2003-09-24 2005-04-14 Matsushita Electric Ind Co Ltd 換気装置

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JPH05312387A (ja) * 1992-05-12 1993-11-22 Mitsubishi Electric Corp 空気調和システム
JP2000234794A (ja) * 1999-02-12 2000-08-29 Sharp Corp 空気調和装置
JP2002235933A (ja) * 2001-02-09 2002-08-23 Mitsubishi Electric Corp 空気調和機
JP2005098573A (ja) * 2003-09-24 2005-04-14 Matsushita Electric Ind Co Ltd 換気装置

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451303B (en) * 2007-07-27 2009-09-02 Mitsubishi Electric Corp Heat exchanging ventilator
GB2451303A (en) * 2007-07-27 2009-01-28 Mitsubishi Electric Corp Heat exchanging ventilator
EP2192356A4 (fr) * 2007-08-28 2018-04-11 Daikin Industries, Ltd. Régulateur d'humidité
EP2508811A1 (fr) * 2011-04-08 2012-10-10 Zehnder Verkaufs- und Verwaltungs AG Dispositif de détermination d'un débit volumique transporté par un ventilateur
EP2508810A1 (fr) * 2011-04-08 2012-10-10 Zehnder Verkaufs- und Verwaltungs AG Module de ventilateur
EP2985540B1 (fr) * 2013-04-09 2022-12-14 Panasonic Intellectual Property Management Co., Ltd. Système de régulation d'environnement atmosphérique et dispositif de commande
JP2016080246A (ja) * 2014-10-16 2016-05-16 リンナイ株式会社 換気装置
US20160231007A1 (en) * 2015-02-09 2016-08-11 Lg Electronics Inc. Air conditioner
ITUA20163864A1 (it) * 2016-05-27 2017-11-27 Fral S R L Impianto per il recupero di calore ed il trattamento climatico dell'aria
BE1024676B1 (nl) * 2016-06-30 2018-05-24 Vero Duco Nv Klimatisatiesysteem en werkwijze voor het regelen van een klimatisatiesysteem
US20230184456A1 (en) * 2020-08-07 2023-06-15 Daikin Industries, Ltd. Fan unit
US11971188B2 (en) 2020-08-07 2024-04-30 Daikin Industries, Ltd. Fan unit and air treatment system including the same
US12044426B2 (en) * 2020-08-07 2024-07-23 Daikin Industries, Ltd. Fan unit
US12163680B2 (en) 2020-08-07 2024-12-10 Daikin Industries, Ltd. Fan unit and air treatment system including the same

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