WO2021039149A1 - Dispositif de ventilation du type à échange de chaleur, équipé de fonction de déshumidification - Google Patents

Dispositif de ventilation du type à échange de chaleur, équipé de fonction de déshumidification Download PDF

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Publication number
WO2021039149A1
WO2021039149A1 PCT/JP2020/026986 JP2020026986W WO2021039149A1 WO 2021039149 A1 WO2021039149 A1 WO 2021039149A1 JP 2020026986 W JP2020026986 W JP 2020026986W WO 2021039149 A1 WO2021039149 A1 WO 2021039149A1
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Prior art keywords
heat exchange
air
heat
dehumidifying
exchange type
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PCT/JP2020/026986
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English (en)
Japanese (ja)
Inventor
剛也 重信
将秀 福本
陽子 石田
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パナソニックＩｐマネジメント株式会社
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Priority to CN202080041114.4A priority Critical patent/CN113939695A/zh
Publication of WO2021039149A1 publication Critical patent/WO2021039149A1/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
    • F24F2003/1446—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only by condensing

Definitions

  • This disclosure relates to a heat exchange type ventilation device with a dehumidifying function used in a living space or the like.
  • a heat exchange type ventilation device that exchanges heat between the air supply airflow and the exhaust flow during ventilation is known.
  • the air (air X, air Y) sucked into the main body case 102 from the air suction port 101 is passed through the dehumidifying unit 103, and then from the air outlet 104. It is configured to blow out to the outside of the main body case 102.
  • the dehumidifying unit 103 includes a refrigerating cycle and a heat exchanger 111.
  • the refrigeration cycle is connected in the order of the compressor 105, the radiator 106, the expander 107, and the heat absorber 108.
  • the heat exchanger 111 is arranged between the heat absorber 108 and the radiator 106, and exchanges heat between the air X flowing through the first flow path 109 and the air Y flowing through the second flow path 110.
  • the air X flowing through the first flow path 109 is cooled by the heat absorber 108 and dew condensation occurs. Condensation water generated from the cooled air X is recovered.
  • the air Y flowing through the second flow path 110 exchanges heat with the air X cooled by the heat absorber 108 and is cooled to cause dew condensation. Condensation water generated from the cooled air Y is also recovered.
  • the conventional dehumidifying device 100 dehumidifies the air in this way.
  • the conventional dehumidifier 100 has a configuration in which dew condensation water generated by dew condensation in the heat absorber 108 and the heat exchanger 111 is collected by a funnel-shaped water collecting unit 112a and flowed into a water collecting tank 112b for recovery. .. Then, as shown in FIG. 7, the air Y heat-exchanged by the heat exchanger 111 circulates in the upper space (the space on the side of the heat absorber 108 and the heat exchanger 111) of the water collecting portion 112a. Therefore, when the dehumidifying mechanism of the conventional dehumidifying device 100 is arranged in the air supply air passage of the heat exchange type ventilation device, the airtightness inside the device becomes higher than that of the conventional dehumidifying device 100.
  • the upper space of the water collecting portion 112a becomes a negative pressure state due to the circulating air supply, and air (air in the lower space of the water collecting portion 112a) flows into the upper space through the opening of the water collecting portion 112a. become.
  • air air in the lower space of the water collecting portion 112a
  • the opening (drainage port) of the water collecting portion 112a there is a problem that abnormal noise is generated due to the state in which the discharged dew condensation water temporarily blocks the air flowing into the upper space. Occurs.
  • the present disclosure provides a heat exchange type ventilation device with a dehumidifying function capable of suppressing the generation of abnormal noise generated at a drain port when draining condensed water generated by dehumidification.
  • the heat exchange type ventilator with a dehumidifying function circulates an exhaust flow that flows through an exhaust air passage for discharging indoor air to the outside and an air supply air passage for supplying outdoor air to the room. It is provided with a heat exchange type ventilation device that exchanges heat with the air supply to be supplied, and a dehumidifying device that dehumidifies the air supply.
  • the dehumidifier is a refrigeration cycle that includes a compressor, a radiator, an expander, and a heat absorber, and a heat exchanger that exchanges heat between the air flowing through the first flow path and the air flowing through the second flow path.
  • a water collecting unit provided below the heat absorber and the heat exchanger to collect and discharge the condensed water generated by the dehumidification is included.
  • the dehumidifying device is configured so that the air supply airflow after heat exchange is introduced from the air supply air passage and the exhaust flow is introduced from the exhaust air passage. Then, a part of the airflow introduced into the dehumidifier flows through the first flow path of the heat absorber and the heat exchanger in this order and is led out to the air supply air passage, and the other part of the airflow introduced into the dehumidifier is It circulates through the second flow path of the heat exchanger and is led out to the air supply air passage.
  • the exhaust flow introduced into the dehumidifier passes through the radiator and is led out to the exhaust air passage.
  • the water collecting portion includes a drain pan, a drain port provided at the bottom of the drain pan for discharging condensed water, and a ventilation pipe provided through the drain pan.
  • the heat exchange type ventilation device with a dehumidifying function according to the present disclosure can suppress the generation of abnormal noise generated at the drain port when draining the condensed water generated by dehumidification.
  • FIG. 1 is a schematic view showing an installation state of the heat exchange type ventilation device according to the premise example of the present disclosure in a house.
  • FIG. 2 is a schematic view showing the configuration of the heat exchange type ventilation device according to the premise example of the present disclosure.
  • FIG. 3 is a schematic view showing the configuration of a heat exchange type ventilator with a dehumidifying function according to the first embodiment of the present disclosure.
  • FIG. 4 is a cross-sectional view showing a main configuration of the dehumidifying device in the heat exchange type ventilator with the dehumidifying function.
  • FIG. 5A is a cross-sectional view showing the configuration of the water collecting portion in the dehumidifying device.
  • FIG. 5B is an enlarged view of a part of the water collecting portion in the dehumidifying device.
  • FIG. 6 is a top view showing the configuration of the water collecting portion in the dehumidifying device.
  • FIG. 7 is a schematic cross-sectional view showing the configuration of a conventional dehumidifying device.
  • the heat exchange type ventilator with a dehumidifying function circulates an exhaust flow that flows through an exhaust air passage for discharging indoor air to the outside and an air supply air passage for supplying outdoor air to the room. It is provided with a heat exchange type ventilation device that exchanges heat with the air supply to be supplied, and a dehumidifying device that dehumidifies the air supply.
  • the dehumidifier is a refrigeration cycle that includes a compressor, a radiator, an expander, and a heat absorber, and a heat exchanger that exchanges heat between the air flowing through the first flow path and the air flowing through the second flow path.
  • a water collecting unit provided below the heat absorber and the heat exchanger to collect and discharge the condensed water generated by the dehumidification is included.
  • the dehumidifying device is configured so that the air supply airflow after heat exchange is introduced from the air supply air passage and the exhaust flow is introduced from the exhaust air passage. Then, a part of the airflow introduced into the dehumidifier flows through the first flow path of the heat absorber and the heat exchanger in this order and is led out to the air supply air passage, and the other part of the airflow introduced into the dehumidifier is It circulates through the second flow path of the heat exchanger and is led out to the air supply air passage.
  • the exhaust flow introduced into the dehumidifier passes through the radiator and is led out to the exhaust air passage.
  • the water collecting portion includes a drain pan, a drain port provided at the bottom of the drain pan for discharging condensed water, and a ventilation pipe provided through the drain pan.
  • the upper space of the water collecting part (the space of the water collecting part on the side of the heat absorber and the heat exchanger) is in a negative pressure state due to the air supply flowing through the second air passage of the heat exchanger.
  • the air in the lower space of the water collecting part can flow into the upper space of the water collecting part through the ventilation pipe.
  • the ventilation pipe is provided so as to project from the bottom of the drain pan, and is above the position of the drain port in the installed state of the heat exchange type ventilation device with a dehumidifying function. It is preferred to have a located vent. By doing so, the dew condensation water collected in the water collecting portion is surely discharged through the drain port of the drain pan without flowing into the ventilation port of the ventilation pipe and being discharged. Therefore, the heat exchange type ventilation device with a dehumidifying function according to the present disclosure can prevent the generation of abnormal noise in the ventilation pipe when the condensed water is discharged from the water collecting portion.
  • the opening area of the vent is larger than the opening area of the drain.
  • the ventilation pipe is provided at a position adjacent to the drain port.
  • the air that is about to flow into the upper space of the water collecting portion through the drainage port can flow into the upper space through the ventilation pipe. Therefore, the heat exchange type ventilator with a dehumidifying function according to the present disclosure can more effectively suppress the generation of abnormal noise generated at the drain port when the condensed water is discharged.
  • FIG. 1 is a schematic view showing an installation state of the heat exchange type ventilation device 10 according to the premise example of the present disclosure in a house.
  • FIG. 2 is a schematic view showing the configuration of the heat exchange type ventilation device 10 according to the premise example of the present disclosure.
  • a heat exchange type ventilation device 10 is installed indoors of the house 1.
  • the heat exchange type ventilator 10 is a device that ventilates while exchanging heat between indoor air and outdoor air.
  • the exhaust flow 2 is discharged to the outside through the heat exchange type ventilator 10 as shown by the black arrow.
  • the exhaust flow 2 is a flow of air discharged from indoors to outdoors.
  • the air supply air flow 3 is taken into the room via the heat exchange type ventilation device 10 as shown by the white arrow.
  • the air supply 3 is a flow of air taken in from the outside to the inside.
  • the exhaust flow 2 has a temperature of 20 ° C to 25 ° C, while the air flow 3 may reach below freezing.
  • the heat exchange type ventilation device 10 ventilates and transfers the heat of the exhaust flow 2 to the supply airflow 3 at the time of this ventilation to suppress the release of unnecessary heat.
  • the heat exchange type ventilation device 10 includes a main body case 11, a heat exchange element 12, an exhaust fan 13, an inside air port 14, an exhaust port 15, an air supply fan 16, an outside air port 17, an air supply port 18, and an exhaust. It is provided with an air passage 4 and an air supply air passage 5.
  • the main body case 11 is an outer frame of the heat exchange type ventilator 10.
  • An inside air port 14, an exhaust port 15, an outside air port 17, and an air supply port 18 are formed on the outer periphery of the main body case 11.
  • the inside air port 14 is a suction port for sucking the exhaust flow 2 into the heat exchange type ventilation device 10.
  • the exhaust port 15 is a discharge port that discharges the exhaust flow 2 from the heat exchange type ventilation device 10 to the outside.
  • the outside air port 17 is a suction port for sucking the air supply air 3 into the heat exchange type ventilation device 10.
  • the air supply port 18 is a discharge port that discharges the air supply air 3 indoors from the heat exchange type ventilation device 10.
  • a heat exchange element 12, an exhaust fan 13, and an air supply fan 16 are mounted inside the main body case 11. Further, an exhaust air passage 4 and an air supply air passage 5 are configured inside the main body case 11.
  • the heat exchange element 12 is a total heat type heat exchange element, and heat exchange (sensible heat and latent heat) between the exhaust flow 2 flowing through the exhaust air passage 4 and the air supply air flow 3 flowing through the air supply air passage 5. It is a member for performing.
  • the exhaust fan 13 is installed near the exhaust port 15 and is a blower for sucking the exhaust flow 2 from the inside air port 14 and discharging it from the exhaust port 15.
  • the air supply fan 16 is installed in the vicinity of the air supply port 18, and is a blower for sucking the air supply airflow 3 from the outside air port 17 and discharging it from the air supply port 18.
  • the exhaust air passage 4 is an air passage that communicates the inside air port 14 and the exhaust port 15.
  • the air supply air passage 5 is an air passage that connects the outside air port 17 and the air supply port 18.
  • the exhaust flow 2 sucked from the inside air port 14 by driving the exhaust fan 13 is discharged to the outside from the exhaust port 15 via the heat exchange element 12 and the exhaust fan 13. Further, the air supply air 3 sucked from the outside air port 17 by driving the air supply fan 16 is supplied indoors from the air supply port 18 via the heat exchange element 12 and the air supply fan 16.
  • the heat exchange type ventilation device 10 When performing heat exchange ventilation, the heat exchange type ventilation device 10 operates the exhaust fan 13 and the air supply fan 16, and the exhaust flow 2 and the air supply air passage 5 that flow through the exhaust air passage 4 in the heat exchange element 12. Heat is exchanged with the air supply air 3 that circulates. As a result, the heat exchange type ventilation device 10 transfers the heat of the exhaust flow 2 released to the outside to the air supply 3 that takes in the room when ventilating, suppresses the release of unnecessary heat, and heats the room. To collect. As a result, in winter in Japan, when ventilation is performed, it is possible to suppress a decrease in indoor temperature by air having a low outdoor temperature. On the other hand, in the summer of Japan, when ventilating, the indoor temperature rise can be suppressed by the air with a high outdoor temperature.
  • FIG. 3 is a schematic view showing the configuration of the heat exchange type ventilation device 50 with a dehumidifying function according to the first embodiment of the present disclosure.
  • the exhaust air passage 4 and the air supply air passage 5 are also shown as the flow (black arrow) of the exhaust flow 2 and the supply air flow 3 in the heat exchange type ventilation device 10.
  • the vertical direction in the state where the heat exchange type ventilation device 50 with a dehumidifying function is installed may be described as the vertical direction and the horizontal direction as the horizontal direction.
  • the heat exchange type ventilator 50 with a dehumidifying function is a dehumidifying device 30 as a means for imparting a dehumidifying function to the heat exchange type ventilator 10 according to the premise example. It has a structure in which
  • the dehumidifying device 30 is a unit for dehumidifying the airflow 3 after heat exchange in the heat exchange type ventilator 10.
  • the dehumidifying device 30 includes a refrigerating cycle including a compressor 31, a radiator 32, an expander 33, and a heat absorber 34, a heat exchanger 35, and a water collecting unit 38.
  • the refrigeration cycle of the present embodiment is configured by connecting the compressor 31, the radiator 32, the expander 33, and the heat absorber 34 in an annular shape in this order.
  • an alternative chlorofluorocarbon (HFC134a) is used as a refrigerant.
  • a copper tube is often used for connecting each device constituting the refrigeration cycle, and the devices are connected by a welding method.
  • the compressor 31 is a device that compresses low-temperature and low-pressure refrigerant gas (working medium gas) in the refrigeration cycle to increase the pressure and raise the temperature.
  • the compressor 31 raises the temperature of the refrigerant gas to about 45 ° C.
  • the radiator 32 is a device that releases heat to the outside (outside the refrigeration cycle) by exchanging heat between the refrigerant gas that has become hot and high pressure by the compressor 31 and the air (exhaust flow 2). At this time, the refrigerant gas is condensed and liquefied under high pressure. In the radiator 32, the temperature of the introduced refrigerant gas (about 45 ° C.) is higher than the temperature of the air, so that the air is heated and the refrigerant gas is cooled when the heat is exchanged.
  • the radiator 32 is also referred to as a condenser.
  • the expander 33 is a device that reduces the pressure of the high-pressure refrigerant liquefied by the radiator 32 to the original low-temperature and low-pressure liquid.
  • the expander 33 is also referred to as an expansion valve.
  • the endothermic device 34 is a device in which the refrigerant flowing through the expander 33 takes heat from the air and evaporates, and the liquid refrigerant is used as a low-temperature and low-pressure refrigerant gas.
  • the temperature of the introduced refrigerant is lower than the temperature of the air, so that when heat is exchanged, the air is cooled and the temperature of the refrigerant is raised.
  • the endothermic absorber 34 is also referred to as an evaporator.
  • the heat exchanger 35 is a heat exchanger provided with a sensible heat type heat exchange element. Inside the heat exchanger 35, there is a first flow path 36 in which air flows in a predetermined direction (direction from the left side to the right side in FIG. 3) and a direction substantially orthogonal to the first flow path 36 (from top to bottom in FIG. 3). A second flow path 37 through which air flows in the direction of) is provided.
  • the first flow path 36 is a flow path for leading the air introduced from the heat absorber 34 to the air supply air passage 5.
  • the second flow path 37 is a flow path for leading the air introduced from the heat exchange type ventilation device 10 to the air supply air passage 5. Then, the heat exchanger 35 exchanges only sensible heat between the air flowing through the first flow path 36 and the air flowing through the second flow path 37.
  • the water collecting unit 38 is a device that collects water (condensation water 34a, dew condensation water 35a) generated by the occurrence of dew condensation in the dehumidification treatment and discharges it to the outside. More specifically, the water collecting unit 38 is provided below the heat absorber 34 and the heat exchanger 35, and the water condensed in the heat absorber 34 (condensed water 34a) and the water condensed in the heat exchanger 35 (condensed water 35a). ) And is collected and discharged to the outside through the drainage facility unit 39. The details of the water collecting unit 38 will be described later.
  • the drainage facility unit 39 is connected to a drainage facility such as a drainage port (not shown) provided in a house or facility by an external drainage pipe 39a.
  • the airflow (exhaust flow 2, supply airflow 3) between the heat exchange type ventilation device 10 and the dehumidifying device 30 will be described with reference to FIG.
  • the airflow (exhaust flow 2, supply airflow 3) or air passage (exhaust air passage 4, air supply air passage 5) before heat exchange indicates the airflow or air passage before passing through the heat exchange element 12. To do.
  • a switching damper 40 is installed in the exhaust air passage 4 after heat exchange, and a switching damper 41 is installed in the air supply air passage 5 after heat exchange.
  • the switching damper 40 is a damper for switching between a state in which the exhaust flow 2 flowing through the exhaust air passage 4 flows outdoors and a state in which the exhaust flow 2 flowing through the exhaust air passage 4 flows through the dehumidifying device 30.
  • the switching damper 41 is a damper for switching between a state in which the airflow 3 flowing through the air supply air passage 5 flows indoors and a state in which the airflow 3 flowing through the air supply air passage 5 flows through the dehumidifying device 30.
  • each switching damper switching damper 40, switching damper 41
  • each switching damper switching damper 40, switching damper 41
  • the increase in pressure loss caused by the dehumidifying device 30 is suppressed, and the heat exchange type ventilation device 50 with a dehumidifying function can be operated with energy saving throughout the year.
  • the dehumidifying device 30 has a branch damper that divides the heat exchanged airflow 3 introduced inside into two airflows (first airflow 3a and second airflow 3b). 42 is installed.
  • the first air flow 3a is introduced into the heat absorber 34 and flows through the first flow path 36 of the heat exchanger 35
  • the second air flow 3b is introduced into the heat exchanger 35 and flows through the second flow path 37. It is an air flow that circulates.
  • the branch damper 42 is configured to make the ratio of the air volume of the first air flow 3a and the air volume of the second air flow 3b variable.
  • the branch damper 42 can easily increase or decrease the ratio of the first airflow 3a to the second airflow 3b by adjusting the angle of the damper (branch ratio of the airflow 3 after heat exchange). It has become.
  • the first airflow 3a corresponds to "a part of the airflow introduced into the dehumidifying device" according to the present disclosure
  • the second airflow 3b corresponds to the "airflow introduced into the dehumidifying device” according to the present disclosure.
  • the dehumidifying device 30 In the dehumidifying device 30, the first airflow 3a of the divided airflows 3 flows in the order of the heat absorber 34 and the first flow path 36 of the heat exchanger 35, and then heat exchanges without passing through the radiator 32. It is led out to the air supply air passage 5 after heat exchange in the type ventilation device 10. On the other hand, the second airflow 3b is led out to the air supply air passage 5 after the heat exchange without flowing through the radiator 32 after flowing through the second flow path 37 of the heat exchanger 35.
  • the dehumidifying device 30 merges the first airflow 3a flowing through the heat exchanger 35 and the second airflow 3b flowing through the heat exchanger 35, and then the air supply air passage after heat exchange. It is configured to be derived to 5. As a result, the temperature is adjusted as the airflow 3 blown into the room.
  • the exhaust flow 2 introduced into the dehumidifying device 30 is led out to the exhaust air passage 4 after heat exchange in the heat exchange type ventilation device 10 after flowing through the radiator 32. That is, in the present embodiment, the dehumidifying device 30 is configured such that the radiator 32 is cooled by the exhaust flow 2 introduced from the heat exchange type ventilation device 10.
  • the exhaust fan 13 and the air supply fan 16 are driven by operating the heat exchange type ventilator 50 with a dehumidifying function, and the exhaust flow 2 flowing through the exhaust air passage 4 is inside the heat exchange type ventilator 10. And the air supply air flow 3 flowing through the air supply air passage 5 are generated.
  • the exhaust flow 2 is indoor air air-conditioned to a comfortable temperature and humidity by an air conditioner or the like, and the air supply 3 is hot and humid outdoor air.
  • Sensible heat and latent heat are exchanged between the exhaust flow 2 and the supply airflow 3 inside the heat exchange type ventilator 10. At this time, since the moisture moves from the hot and humid supply airflow 3 to the exhaust stream 2, the moisture in the supply airflow 3 is removed. That is, dehumidification (first dehumidification) is performed on the supply airflow 3 by total heat exchange inside the heat exchange type ventilator 10.
  • the airflow 3 after heat exchange is introduced into the dehumidifying device 30 to be dehumidified.
  • the first airflow 3a is cooled by the heat absorber 34.
  • the temperature of the first airflow 3a becomes equal to or lower than the dew point temperature, and the first airflow 3a condenses, so that the moisture in the first airflow 3a is removed. That is, the dehumidification (second dehumidification) for the first airflow 3a is performed by circulating the heat absorber 34.
  • the remaining second airflow 3b of the airflow 3 introduced into the dehumidifying device 30 flows into the second flow path 37 of the heat exchanger 35 and is cooled by the heat absorber 34 in the first flow path 36. It exchanges heat with the first airflow 3a.
  • the second airflow 3b in the second flow path 37 is cooled and dew condensation occurs, so that the moisture in the second airflow 3b is removed. That is, the heat exchanger 35 exchanges sensible heat to dehumidify the second airflow 3b (third dehumidification).
  • the heat exchange type ventilator 50 with a dehumidifying function is exposed to high temperature and humidity outdoors by dehumidifying (first dehumidification to third dehumidification) by each device of the heat exchange type ventilation device 10, the heat absorber 34, and the heat exchanger 35.
  • dehumidifying first dehumidification to third dehumidification
  • the required amount of dehumidification is secured by removing water from the air supply 3.
  • the dehumidifying device 30 has a configuration in which the exhaust flow 2 is introduced from the exhaust air passage 4 of the heat exchange type ventilation device 10, and the introduced exhaust flow 2 circulates through the radiator 32. That is, in the dehumidifying device 30, the radiator 32 is cooled by the air heat of the exhaust flow 2 from the heat exchange type ventilation device 10 (the exhaust flow 2 whose temperature is lower than the supply air flow 3 in the summer in Japan where dehumidification is required). It is configured to. The exhaust flow 2 that has taken heat from the radiator 32 is led out to the exhaust air passage 4 and discharged to the outside as it is.
  • the energy required for cooling (exhaust heat) of the radiator 32 in the dehumidifying device 30 is heated to the exhaust flow 2 from the heat exchange type ventilator 10 (in the summer of Japan where dehumidification is required, the temperature is higher than that of the air supply 3). It can be obtained with a low exhaust flow 2). Therefore, the dehumidified air (air supply air after heat exchange 3) can be blown into the room without being circulated to the radiator 32.
  • FIG. 4 is a cross-sectional view showing a main configuration of the dehumidifying device 30 in the heat exchange type ventilation device 50 with a dehumidifying function.
  • FIG. 5A is a cross-sectional view showing the configuration of the water collecting portion 38 in the dehumidifying device 30, and
  • FIG. 5B is an enlarged view of the portion A of FIG. 5A.
  • FIG. 6 is a top view showing the configuration of the water collecting portion 38 in the dehumidifying device 30.
  • the water collecting portion 38 of the dehumidifying device 30 is provided below the heat absorber 34 and the heat exchanger 35, and collects the dew condensation water 34a generated by the heat absorber 34 and the dew condensation water 35a generated by the heat exchanger 35. Water is collected and discharged to the outside through the drainage facility unit 39.
  • the water collecting portion 38 includes a drain pan 60, a drain port 61, and a ventilation pipe 62. Then, the water collecting portion 38 collects dew condensation water (condensation water 34a, dew condensation water 35a) on the upper space 63 side of the water collecting portion 38, and passes through the drain port 61 to the lower space 64 side of the water collecting portion 38. Discharge to.
  • the upper space 63 is a space on the upper side in the vertical direction with respect to the water collecting portion 38, and is a space on the side where the heat absorber 34 and the heat exchanger 35 are arranged.
  • the lower space 64 is a space on the lower side in the vertical direction with respect to the water collecting portion 38, and is a space on the side where the drainage facility portion 39 is arranged.
  • the drain pan 60 is provided at least over the entire bottom surface of the heat absorber 34 and the heat exchanger 35.
  • the drain pan 60 has a box-shaped shape with an open upper portion, and can temporarily store the dew condensation water 34a generated by the heat absorber 34 and the dew condensation water 35a generated by the heat exchanger 35.
  • the bottom 60a of the drain pan 60 is provided with a drain port 61 for discharging the dew condensation water 34a and the dew condensation water 35a (hereinafter, also simply referred to as “condensation water”) collected by the drain pan 60.
  • the drainage port 61 is a funnel-shaped opening capable of draining condensed water, and is provided at the lowest position of the bottom portion 60a of the drain pan 60.
  • the bottom 60a of the drain pan 60 has a downward slope so that the condensed water flows toward the drain port 61. As a result, the condensed water collected by the drain pan 60 is surely discharged from the drain port 61.
  • the ventilation pipe 62 is provided so as to penetrate the drain pan 60.
  • the ventilation pipe 62 is a cylindrical pipe that allows air to be ventilated between the upper space 63 and the lower space 64 of the water collecting portion 38.
  • the ventilation pipe 62 is provided at a position adjacent to the drain port 61.
  • the ventilation pipe 62 is provided so as to project from the bottom portion 60a of the drain pan 60, and has a ventilation port 62a located above the position of the drainage port 61.
  • the vent 62a is located at a position higher than the upper end position of the drain port 61 (corresponding to the position of the bottom 60a of the drain pan 60) by the amount of protrusion H.
  • the drainage port 61 has a diameter D1 at a position where the funnel shape has the minimum diameter.
  • the ventilation port 62a of the ventilation pipe 62 has a diameter D2 regardless of the position of the cylindrical shape.
  • the opening area S2 of the ventilation port 62a is larger than the opening area S1 of the drainage port 61.
  • the opening area is defined by the minimum opening area that becomes dominant when air flows between the upper space 63 and the lower space 64 of the water collecting portion 38. As a result, the air in the lower space 64 of the water collecting portion 38 tends to flow into the upper space 63 of the water collecting portion 38 through the ventilation pipe 62 having a smaller resistance when the air flows.
  • the water collecting part 38 in the dehumidifying device 30 is configured, and the water (condensed water) generated by the occurrence of dew condensation in the dehumidifying treatment is collected and discharged to the outside.
  • the dehumidifying device 30 of the heat exchange type ventilation device 50 with a dehumidifying function collects and discharges the dew condensation water (condensation water 34a, dew condensation water 35a) generated by the dehumidification of the drain pan 60 and the drain pan 60. It is provided on the bottom 60a and is configured to have a drain port 61 for discharging condensed water and a ventilation pipe 62 penetrating the drain pan 60.
  • the heat exchange type ventilation device 50 with a dehumidifying function can suppress the generation of abnormal noise generated at the drain port 61 when the condensed water generated by the dehumidification is discharged.
  • the ventilation port 62a of the ventilation pipe 62 is located above the upper end position of the drainage port 61 in the water collecting portion 38.
  • the condensed water collected in the water collecting portion 38 is surely discharged through the drain port 61 of the drain pan 60 without flowing into the ventilation port 62a of the ventilation pipe 62 and being discharged. .. Therefore, the heat exchange type ventilation device 50 with a dehumidifying function can prevent the generation of abnormal noise in the ventilation pipe 62 when the condensed water is discharged from the water collecting portion 38.
  • the opening area S2 of the vent 62a is made larger than the opening area S1 of the drain port 61 in the water collecting portion 38.
  • the air in the lower space 64 of the water collecting portion 38 easily flows into the upper space 63 of the water collecting portion 38 through the ventilation pipe 62. Therefore, the heat exchange type ventilation device 50 with a dehumidifying function can more reliably suppress the generation of abnormal noise generated at the drain port 61 when the condensed water is discharged.
  • the ventilation pipe 62 is provided at a position adjacent to the drain port 61 in the water collecting portion 38.
  • the air that is about to flow into the upper space 63 of the water collecting portion 38 through the drain port 61 can flow into the upper space 63 through the ventilation pipe 62. Therefore, the heat exchange type ventilation device 50 with a dehumidifying function can more effectively suppress the generation of abnormal noise generated at the drain port 61 when the condensed water is discharged.
  • a sensible heat type heat exchange element is used as the heat exchanger 35, but as the sensible heat type heat exchange element, the first flow path 36 and the second flow path 37 of the heat exchange element are used.
  • the constituent members have water repellency (hydrophobicity).
  • a resin member such as polypropylene or polystyrene is used.
  • the exhaust flow 2 after heat exchange is configured to be introduced into the dehumidifying device 30, but the present invention is not limited to this.
  • a part of the exhaust flow 2 before heat exchange may be introduced into the dehumidifying device 30.
  • the exhaust flow 2 before heat exchange which has a lower temperature than the exhaust flow 2 after heat exchange, is introduced into the dehumidifying device 30, so that the radiator 32 can be cooled more effectively. Therefore, it is possible to suppress the temperature rise of the air (air supply airflow 3) after dehumidification.
  • the heat exchange type ventilator with a dehumidifying function according to the present disclosure is useful as a heat exchange type ventilator that enables heat exchange between indoors and outdoors.

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

Abstract

La présente invention concerne un dispositif de ventilation de type à échange de chaleur équipé d'une fonction de déshumidification qui comprend : un dispositif de ventilation de type à échange de chaleur qui effectue un échange de chaleur entre un flux d'échappement s'écoulant à travers un trajet d'air d'échappement et un écoulement d'admission (3) s'écoulant à travers un trajet d'air d'admission ; et un dispositif de déshumidification pour déshumidifier l'écoulement d'admission (3). Le dispositif de déshumidification comprend : un cycle de réfrigération comprenant un compresseur, un radiateur, un détendeur et un absorbeur de chaleur (34) ; un échangeur de chaleur (35) qui effectue un échange de chaleur entre l'air (premier flux d'admission (3a)) s'écoulant par un premier trajet d'écoulement (36) et l'air (second flux d'admission (3b)) s'écoulant par un second trajet d'écoulement (37) ; et une partie de collecte d'eau (38) pour collecter et évacuer l'eau de condensation de rosée générée par la déshumidification. La partie de collecte d'eau (38) est conçue pour avoir : un bac de vidange (60) ; un orifice d'évacuation d'eau (61) qui est destiné à évacuer l'eau de condensation de rosée et est disposé sur la section inférieure du bac de vidange (60) ; et un tuyau de ventilation (62) traversant le bac de vidange (60).
PCT/JP2020/026986 2019-08-30 2020-07-10 Dispositif de ventilation du type à échange de chaleur, équipé de fonction de déshumidification WO2021039149A1 (fr)

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CN117899627B (zh) * 2024-02-26 2024-07-12 无锡宇邦半导体科技有限公司 一种半导体材料的除湿装置及使用方法

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JP2017070924A (ja) * 2015-10-09 2017-04-13 パナソニックＩｐマネジメント株式会社 除湿装置
WO2017141443A1 (fr) * 2016-02-19 2017-08-24 三菱電機株式会社 Dispositif de ventilation d'échangeur de chaleur
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Publication number Priority date Publication date Assignee Title
JP2001082756A (ja) * 1999-09-13 2001-03-30 Matsushita Electric Ind Co Ltd 熱交換換気装置のドレン水処理装置
JP2002168474A (ja) * 2000-12-04 2002-06-14 Matsushita Electric Ind Co Ltd 空気調和機のドレン水処理装置
JP2012141118A (ja) * 2011-01-06 2012-07-26 Mitsubishi Electric Corp 空気調和装置及び空気調和システム
JP2015064171A (ja) * 2013-09-26 2015-04-09 パナソニック株式会社 除湿換気装置
JP2015120136A (ja) * 2013-12-25 2015-07-02 パナソニックＩｐマネジメント株式会社 除湿装置
WO2016031139A1 (fr) * 2014-08-29 2016-03-03 パナソニックＩｐマネジメント株式会社 Dispositif de déshumidification
JP2016117021A (ja) * 2014-12-22 2016-06-30 パナソニックＩｐマネジメント株式会社 除湿装置
JP2017070924A (ja) * 2015-10-09 2017-04-13 パナソニックＩｐマネジメント株式会社 除湿装置
WO2017141443A1 (fr) * 2016-02-19 2017-08-24 三菱電機株式会社 Dispositif de ventilation d'échangeur de chaleur
CN105841332A (zh) * 2016-06-06 2016-08-10 合肥天鹅制冷科技有限公司 空调冷凝水排水装置
CN107101359A (zh) * 2017-06-23 2017-08-29 海信（山东）空调有限公司 一种风管机

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