WO2017143875A1 - Ventilateur d'air frais à traitement de particules pm2.5 et son procédé d'utilisation - Google Patents

Ventilateur d'air frais à traitement de particules pm2.5 et son procédé d'utilisation Download PDF

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Publication number
WO2017143875A1
WO2017143875A1 PCT/CN2017/070388 CN2017070388W WO2017143875A1 WO 2017143875 A1 WO2017143875 A1 WO 2017143875A1 CN 2017070388 W CN2017070388 W CN 2017070388W WO 2017143875 A1 WO2017143875 A1 WO 2017143875A1
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WO
WIPO (PCT)
Prior art keywords
filter
air
fan
high efficiency
efficiency filter
Prior art date
Application number
PCT/CN2017/070388
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English (en)
Chinese (zh)
Inventor
俞越
金渔兵
石磊
葛美才
谢能作
Original Assignee
南通华信中央空调有限公司
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Publication of WO2017143875A1 publication Critical patent/WO2017143875A1/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
    • 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
    • F24F3/16—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 purification, e.g. by filtering; by sterilisation; by ozonisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • 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
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F24F13/28—Arrangement or mounting of filters
    • 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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • 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
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/64—Airborne particle content
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the invention relates to the technical field of air treatment, in particular to a super PM2.5 processing new fan and a using method thereof.
  • the prior art air conditioning new fan unit is simply arranged with some nylon filters to filter large impurities, fibers and other debris, and the air quality improvement effect is very limited in the case of severe air quality deterioration, and may even be Dust particles are sent to the indoor working area through the unit, which worsens the deterioration of air quality and pollutes the indoor environment. Therefore, the existing new wind turbines operating under poor air quality are very detrimental to the health of indoor personnel.
  • the present invention provides a technical solution that is simple in structure, energy-saving and environmentally friendly, can realize air supply switching between the living room and the bedroom, and can better improve indoor air quality at the same time:
  • a super PM2.5 handles a new fan, including a chassis, and an air inlet is provided at the top of the chassis, and a left air supply port, a right air supply port, and a front air supply port are respectively arranged at the bottom of the chassis, and the air inlet is respectively provided inside the chassis a primary effect filter and a second primary effect filter, a first evaporation coil is disposed under the first primary effect filter, a second evaporation coil is disposed under the second primary effect filter, and the first evaporation coil and the second The evaporating coil is symmetrically disposed on the first baffle, and a DC variable frequency fan is disposed under the first baffle, the DC variable frequency fan is mounted on the second baffle, and the first high efficiency filter and the second baffle are respectively disposed under the second baffle
  • Two high-efficiency filters, PM2.5 sensors are also placed under the chassis.
  • the PM2.5 sensor comprises an air sampling module and a dust particle detecting module, a single chip microcomputer
  • the air sampling module comprises an A/D conversion module, a temperature and humidity sensor, an atmospheric pressure sensor, an A/D conversion module, a temperature and humidity sensor, and an atmospheric pressure sensor.
  • the dust particle detection module is respectively connected to the single chip microcomputer.
  • a first ultraviolet lamp tube is disposed between the first primary effect filter and the first evaporation coil
  • a second ultraviolet lamp tube is disposed between the second primary effect filter and the second evaporation coil.
  • the DC variable frequency fan comprises a fan volute, the center line of the fan volute is perpendicular to the second partition, the right side of the fan volute is open, and the opening direction is downward, and the open end is respectively associated with the first high efficiency filter and the second High efficiency filters are connected.
  • the angle between the first evaporation coil and the second evaporation coil and the first separator is 45°-60°.
  • a bypass assembly is installed between the first high efficiency filter and the second high efficiency filter, the bypass assembly including a detector, a controller and a valve, the controller being coupled to the detector and the valve, respectively.
  • the method of using the method comprises the following steps:
  • the indoor air enters from the air inlet end of the chassis, and reaches the first evaporation coil and the second evaporation coil through the first primary effect filter and the second primary effect filter respectively;
  • the first evaporating coil and the second evaporating coil evaporate water vapor in the air to deliver dry air;
  • the dry air enters the DC variable frequency fan, and enters the first high efficiency filter and the second high efficiency filter from the outlet outlet of the direct current variable frequency fan;
  • the filtered air controls the bypass components according to the demand, and the wind direction between the living room and the bedroom is switched.
  • the invention has the advantages of simple structure, energy saving and environmental protection, and the DC variable frequency fan is installed between the evaporation coil and the high efficiency filter to ensure that all the filtered air supply sections are positive pressure, so as to prevent secondary pollution caused by indoor air entering the equipment.
  • the invention adopts a high-efficiency filter and a PM2.5 sensor, can ensure the cleanliness of indoor fresh air, improve the indoor environment, and reduce the concentration of carbon dioxide, and is a window opening substitute for smog days.
  • the present invention installs a bypass assembly between the first high efficiency filter and the second high efficiency filter, and can change the air supply direction through the valve member according to requirements, and can switch between the living room and the bedroom.
  • Figure 1 is a perspective view of the present invention
  • Figure 2 is a front elevational view of the present invention
  • Figure 3 is a schematic diagram of the control of the PM2.5 sensor of the present invention.
  • the present invention designs a super PM2.5 processing new fan, including a chassis 1.
  • the top of the chassis 1 is provided with an air inlet 2
  • the bottom of the chassis 1 is respectively provided with a left air supply port 3 a right air supply port 4 and a front air supply port 5, and inside the air box 2
  • a first primary effect filter 6 and a second primary effect filter 7 are respectively disposed under the air inlet 2
  • the first primary effect filter 6 A first evaporation coil 8 is disposed below
  • a second evaporation coil 9 is disposed below the second primary filter 7, and a first ultraviolet tube 22 is disposed between the first primary filter 6 and the first evaporation coil 8
  • a second ultraviolet lamp tube 23 is disposed between the second primary effect filter 7 and the second evaporation coil 9.
  • the ultraviolet lamp tube is capable of sterilizing the initially filtered air, and the first evaporation coil 8 and the second evaporation coil 9 are symmetrically disposed on the first partition 10, the first evaporation coil 8 and the first
  • the angle between the two evaporation coils 9 and the first partition plate 10 is 45°-60°
  • a DC inverter fan 11 is disposed under the first partition plate 10, and the DC inverter fan 11 is mounted on the second partition plate 12.
  • a second high efficiency filter 13 and a second high efficiency filter 14 are respectively disposed under the second partition plate 12,
  • a PM2.5 sensor 15 is also disposed below the interior of the chassis 1.
  • the utility model has the advantages of simple structure, energy saving and environmental protection, and the DC variable frequency fan is installed between the evaporation coil and the high efficiency filter to ensure that all the filtered air supply sections are positive pressure, so as to prevent secondary pollution caused by indoor air entering the equipment.
  • the PM2.5 sensor 15 includes an air sampling module 16 and a dust particle detecting module 17, and a single chip microcomputer 18.
  • the air sampling module 16 includes an A/D conversion module 19, a temperature and humidity sensor 20, and an atmospheric pressure sensor 21.
  • the A/D conversion module 19, the temperature and humidity sensor 20, the atmospheric pressure sensor 21, and the dust particle detecting module 17 are respectively connected to the single chip microcomputer 18.
  • the dust particle detecting module 17, the temperature and humidity sensor 20, and the atmospheric pressure sensor 21 respectively collect dust particles, air temperature, humidity and pressure in the air, and send the collected signals to the single chip microcomputer 18 for analysis and processing, and compare them with the set parameters.
  • the output signal is used to control the DC inverter fan 11.
  • the invention adopts a high-efficiency filter and a PM2.5 sensor, can ensure the cleanliness of the indoor fresh air, improve the indoor environment, and reduce the carbon dioxide concentration, and is a window opening substitute for the haze.
  • the use of high-efficiency filter with PM2.5 sensor can ensure the cleanliness of indoor fresh air, improve the indoor environment and reduce the concentration of carbon dioxide. It is a window opening alternative to smog.
  • the DC inverter fan 11 includes a fan volute 24, the center line of the fan volute 24 is perpendicular to the second partition 12, the right portion of the fan volute 24 is open, and the opening direction is downward, and the opening The ends are in communication with the first high efficiency filter 13 and the second high efficiency filter 14, respectively.
  • a bypass assembly 25 is mounted between the first high efficiency filter 13 and the second high efficiency filter 14 and includes a detector, a controller and a valve, the controller and the detector and the valve, respectively Connected. Install the bypass assembly. When in use, the air supply direction can be changed through the valve member according to the requirements to meet the switching between the living room and the bedroom.
  • a bypass assembly is installed between the first high efficiency filter and the second high efficiency filter, and the air supply direction can be changed through the valve member according to requirements to meet the switching between the living room and the bedroom.
  • the method of use of the present invention comprises the following steps:
  • A indoor air enters from the top air inlet end of the chassis 1, respectively, through the first primary effect filter 6 and the second primary effect filter 7 to the first evaporation coil 8 and the second evaporation coil 9;
  • the first evaporating coil 8 and the second evaporating coil 9 evaporate water vapor in the air to deliver dry air;
  • the dry air enters the DC inverter fan 11, and from the outlet of the DC inverter fan 11 to the first high efficiency filter 13 and the second high efficiency filter 14;
  • the filtered air controls the bypass assembly 25 according to the demand to realize the wind direction switching between the living room and the bedroom.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Ventilation (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

L'invention concerne un ventilateur d'air frais à traitement de particules PM2.5, le ventilateur comprenant un boîtier (1). Une partie supérieure du boîtier (1) est munie d'une entrée d'air (2). Une partie inférieure du boîtier (1) est munie d'une sortie d'air gauche (3), d'une sortie d'air droite (4) et d'une sortie d'air frontale (5). A l'intérieur du boîtier (1), un premier filtre préliminaire (6) et un second filtre préliminaire (7) sont disposés en dessous de l'entrée d'air (2). Un premier serpentin d'évaporation (8) est disposé en dessous du premier filtre préliminaire (6). Un second serpentin d'évaporation (9) est disposé en dessous du second filtre préliminaire (7). Le premier serpentin d'évaporation (8) et le second serpentin d'évaporation (9) sont disposés symétriquement sur une première entretoise (10). Un ventilateur à fréquence variable à courant continu (11) est disposé en dessous de la première entretoise (10). Le ventilateur à fréquence variable à courant continu (11) est monté sur une seconde entretoise (12). Un premier filtre à haute efficacité (13) et un second filtre à haute efficacité (14) sont disposés en dessous de la seconde entretoise (12). Un capteur (15) de particules PM2.5 est disposé en outre dans une position plus inférieure à l'intérieur du boîtier (1). L'invention concerne également un procédé d'utilisation du ventilateur d'air frais à traitement de particules PM2.5.
PCT/CN2017/070388 2016-02-26 2017-01-06 Ventilateur d'air frais à traitement de particules pm2.5 et son procédé d'utilisation WO2017143875A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610104277.8 2016-02-26
CN201610104277.8A CN105605703A (zh) 2016-02-26 2016-02-26 一种超级pm2.5处理新风机及使用方法

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WO2017143875A1 true WO2017143875A1 (fr) 2017-08-31

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CN107842969A (zh) * 2017-11-22 2018-03-27 奥普家居股份有限公司 一种具有旁通门的新风机
CN110864380A (zh) * 2018-08-06 2020-03-06 成都天卤八部食品有限公司 智能新风机
IT202100003200A1 (it) * 2021-02-12 2022-08-12 Solarys Srl Purificatore d'aria

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CN105605703A (zh) * 2016-02-26 2016-05-25 南通华信中央空调有限公司 一种超级pm2.5处理新风机及使用方法

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US4938035A (en) * 1987-10-20 1990-07-03 Khanh Dinh Regenerative fresh-air air conditioning system and method
WO2012066453A1 (fr) * 2010-11-16 2012-05-24 Koninklijke Philips Electronics N.V. Commande d'un dispositif de traitement de l'air pourvu d'un filtre
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CN107842969A (zh) * 2017-11-22 2018-03-27 奥普家居股份有限公司 一种具有旁通门的新风机
CN110864380A (zh) * 2018-08-06 2020-03-06 成都天卤八部食品有限公司 智能新风机
IT202100003200A1 (it) * 2021-02-12 2022-08-12 Solarys Srl Purificatore d'aria

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