WO2023051803A1 - Unité intérieure d'air frais à réglage de température de pression micro-positive à écoulement unidirectionnel, système et procédé de fonctionnement s'y rapportant - Google Patents

Unité intérieure d'air frais à réglage de température de pression micro-positive à écoulement unidirectionnel, système et procédé de fonctionnement s'y rapportant Download PDF

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Publication number
WO2023051803A1
WO2023051803A1 PCT/CN2022/123411 CN2022123411W WO2023051803A1 WO 2023051803 A1 WO2023051803 A1 WO 2023051803A1 CN 2022123411 W CN2022123411 W CN 2022123411W WO 2023051803 A1 WO2023051803 A1 WO 2023051803A1
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Prior art keywords
air
fresh air
temperature
heat exchanger
positive pressure
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PCT/CN2022/123411
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English (en)
Chinese (zh)
Inventor
杨凡
郁伟荣
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上海复璐帝流体技术有限公司
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Publication of WO2023051803A1 publication Critical patent/WO2023051803A1/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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the 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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement 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
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet communication
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • 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
    • 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
    • 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
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide

Definitions

  • the invention belongs to the technical field of indoor fresh air temperature regulation, and relates to a unidirectional flow micro positive pressure temperature regulation fresh air indoor unit and its system and operation method.
  • the main function of household air conditioners commonly used is to adjust the temperature of the air, and in order to ensure the effect of temperature adjustment, it is generally required that the space to be adjusted must be in a closed state.
  • the indoor closed space Dust, smog, bacteria, viruses, and exhaust gas continue to increase, and the oxygen content continues to decrease, which inevitably leads to worsening air quality, forming the well-known "air conditioning disease".
  • the conventional solution is not to stay in the air-conditioned room for a long time, and open the window to ventilate the fresh air, or use the indoor exhaust air to form a negative pressure to supply fresh air to the room by leaking through the gap between the door and the window, so as to improve the air condition of the room. Control air quality.
  • Indoor air conditioning is closely related to daily work and life. Indoor air temperature and gas composition are the guarantee of human comfort and health, and air conditioning and fresh air are important technologies to improve the quality of life.
  • air-conditioning has begun to be popularized and fresh air technology has attracted increasing attention, the current air-conditioning system and fresh air system have the following defects: 1) The fresh air indoor unit uses indoor air to circulate, and the air quality will deteriorate if used for a long time, the oxygen content will decrease, and the carbon dioxide concentration will increase. , affecting human health; 2) The fresh air system can use outdoor air to be filtered and sent indoors. The fresh air system can ensure excellent air quality indoors, but a large amount of fresh air without temperature regulation will destroy the ambient temperature of the indoor unit.
  • the technical problem to be solved by the present invention is to propose a healthy, comfortable, environmentally friendly and energy-saving unidirectional flow micro-positive pressure temperature-regulated fresh air indoor unit and its system and operation for the above-mentioned defects in the existing air-conditioning system and fresh air system. method.
  • the present invention adopts the following technical solutions:
  • the first aspect of the present invention is to provide a unidirectional flow micro-positive pressure temperature-regulated fresh air indoor unit, including a casing and a PM2.5 filter, a heat exchanger and a silent fan arranged inside the casing, wherein:
  • the lower end of the back of the casing is provided with an air inlet connected to the PM2.5 filter inlet, and at least one carbon dioxide concentration sensor is installed on the outer wall of the upper end;
  • the outlet of the PM2.5 filter is connected to the inlet of the heat exchanger, and the outlet of the heat exchanger is connected to the silent fan installed on the top of the casing, and the air outlet of the silent fan is upward or downward Or arranged horizontally.
  • the PM2.5 filter is installed at the lower part of the casing, and the heat exchanger is arranged above it.
  • the heat exchanger is installed at the air outlet of the PM2.5 filter, and the silent fan is installed at the air outlet of the heat exchanger in a series arrangement.
  • the air inlet is located at the lower end surface of the back of the casing, and is arranged opposite to the inlet of the PM2.5 filter.
  • the unidirectional flow micro positive pressure temperature-regulated fresh air indoor unit further includes a refrigerant inlet pipe and a refrigerant return pipe respectively connected to the refrigerant inlet and outlet of the heat exchanger;
  • the remote ends of the refrigerant inlet pipe and the refrigerant return pipe are arranged through the air inlet.
  • the unidirectional flow micro positive pressure temperature-regulated fresh air indoor unit also includes a humidifier installed inside the casing;
  • the air outlet of the humidifier is connected to the inlet of the silent fan.
  • the unidirectional flow micro positive pressure temperature-regulated fresh air indoor unit further includes: a controller using 4G wireless transmission and control arranged on the upper end surface or the top end surface of the front side of the casing;
  • the controller is electrically connected to the silent fan and the solenoid valves on each pipeline, and is connected to the carbon dioxide concentration sensor at the same time; the carbon dioxide concentration sensor adopts double configuration and works at the same time.
  • the fresh air supply volume is adjusted by the silent fan, so that the indoor carbon dioxide concentration is controlled within the human health standard.
  • the second aspect of the present invention is to provide a unidirectional flow micro-positive pressure temperature-regulated fresh air system based on the above-mentioned fresh air indoor unit, including:
  • the PM2.5 filter is used to remove dust and sterilize the outdoor air flowing through it;
  • a heat exchanger the heat exchanger is used to receive the outdoor fresh air that has been dedusted and sterilized, and adjust the temperature of the outdoor fresh air flowing through it to a set temperature;
  • Silent fan which is used to send the temperature-regulated outdoor fresh air into the room
  • the controller is distributed and electrically connected to the PM2.5 filter, the solenoid valve of the heat exchanger and the silent fan, and is used to adjust the fresh air volume according to the fresh air exchange rate set by the indoor air health standard, so that the indoor Form a healthy and comfortable air environment with constant temperature wind, low wind speed, one-way flow, slight positive pressure, and no oxygen return.
  • the unidirectional flow micro positive pressure temperature regulation fresh air system also includes:
  • a carbon dioxide concentration sensor the carbon dioxide concentration sensor is electrically connected to the controller for real-time monitoring of indoor carbon dioxide concentration
  • a humidifier the humidifier is electrically connected to the controller, and is used to adjust the humidity and temperature of the fresh air in the room and monitor the carbon dioxide concentration in the room.
  • the third aspect of the present invention is to provide a unidirectional flow micro positive pressure temperature regulation operation method of the fresh air system as described above, including the steps:
  • the humidifier When the humidity of the fresh air regulated by the heat exchanger is lower than the set value, the humidifier provides water vapor at the same temperature as the temperature-regulated air, so that the humidity reaches the set value, and the temperature-regulated air is maintained while humidifying. no change in temperature;
  • the temperature-regulated and humidity-controlled fresh outdoor air pressure is sent into the room through the silent fan, and by adjusting the air volume of the silent fan, the room maintains a slight positive pressure of one-way flow, and at the same time, the room has a suitable air exchange rate ;
  • the present invention adopts above-mentioned technical scheme, compared with prior art, has following technical effect:
  • the unidirectional flow micro-positive pressure indoor fresh air indoor unit uses a PM2.5 filter to remove dust and sterilize the outdoor air, and adjust the temperature of the fresh air after dust removal and sterilization to the set temperature through a heat exchanger, such as low humidity
  • the fresh air humidity is adjusted to the set value through the humidifier, and then the fresh air is sent into the room through the low-noise fan, and the room maintains a unidirectional flow with a slight positive pressure by adjusting the air volume of the low-noise fan ;
  • the indoor carbon dioxide concentration is higher than the health standard, the air supply volume is adjusted so that the indoor space has a fresh air supply rate that ensures human health, achieving the goals of health, comfort, environmental protection, and energy saving, and meeting people's needs for high-quality work and life.
  • Fig. 1 is a three-dimensional structural schematic diagram of a unidirectional flow micro-positive pressure temperature-regulated fresh air indoor unit of the present invention
  • Figure 2 is a schematic diagram of the assembly structure of a unidirectional flow micro-positive pressure temperature-regulated fresh air indoor unit according to the present invention
  • Fig. 3 is a schematic diagram 2 of the assembly structure of a unidirectional flow micro-positive pressure temperature-regulated fresh air indoor unit according to the present invention
  • Fig. 4 is a side view structural schematic diagram of a unidirectional flow micro-positive pressure temperature-regulated fresh air indoor unit of the present invention
  • Fig. 5 is a frame principle diagram of a unidirectional flow micro positive pressure temperature regulation fresh air system of the present invention
  • Fig. 6 is a schematic flowchart of a unidirectional flow micro positive pressure temperature regulation operation method according to the present invention.
  • the unidirectional flow micro-positive pressure temperature-regulated fresh air indoor unit mainly includes a casing 10, a PM2.5 filter 20 sealed and installed inside the casing 10, a heat exchanger 30 and a silent fan 40, and the silent fan 40 is
  • the aerodynamic drive unit of the fresh air indoor unit is used to draw outdoor air into the room and maintain the indoor air in a slightly positive pressure state, achieving the goals of health, comfort, environmental protection and energy saving, and meeting people's needs for high-quality work and life .
  • the whole of the unidirectional flow micro-positive pressure temperature-adjusting fresh air indoor unit is a square cylinder or a rectangular cylinder or a garden cylinder with a certain height
  • the casing 10 is made of metal Sheet metal parts or aluminum alloy or engineering plastics are processed by metal sheet metal forming or integrated forming to form a hollow square shell structure.
  • PM2.5 filter 20, heat exchanger 30 and silent fan 40 are all installed in the hollow square shell structure. inside the shell.
  • An air inlet 11 is provided on the back shell of the casing 10, one end of the air inlet 11 is connected to the outdoor through a pipe, and the other end of the air inlet 11 communicates with the inlet of the PM2.5 filter 20 .
  • at least one carbon dioxide concentration sensor (50) is installed on the outer wall of the upper end of the casing 10, and the indoor carbon dioxide concentration is monitored in real time through the carbon dioxide concentration sensor (50).
  • the connection relationship of each component is as follows: the air inlet 11 is located in the case 10 The lower end surface of the back is positioned opposite to the inlet of the PM2.5 filter 20 .
  • the air inlet of the PM2.5 filter 20 is connected to the air inlet 11 for receiving the outdoor space and providing fresh air for the system to maintain a slight positive pressure in the room.
  • the outlet of the PM2.5 filter 20 is connected to the inlet of the heat exchanger 30, and is used to send the fresh air after dedusting and sterilization into the heat exchanger 30, and the heat exchanger 30 will flow through it.
  • the temperature of the outdoor fresh air is adjusted to a set temperature.
  • the outlet of the heat exchanger 30 is connected to the silent blower 40 installed on the top of the casing 10, which is used to suck the temperature-regulated outdoor fresh air into the room, and adjust it according to the micro positive pressure and air supply rate set in the room.
  • the wind pressure and air volume of its exhaust outlet is connected to the silent blower 40 installed on the top of the casing 10, which is used to suck the temperature-regulated outdoor fresh air into the room, and adjust it according to the micro positive pressure and air supply rate set in the room.
  • the silent fan 40 can be arranged on the front end surface or both sides of the casing 10, that is, the opening of the silent fan 40 is oriented in a horizontal direction, and the fresh air of a preset temperature is sprayed into the room in the horizontal direction.
  • the silent blower 40 is installed on the top of the casing, as shown in FIGS. 1 and 2 , that is, the opening of the silent blower 40 is arranged upwards, so as to spray fresh air with a preset temperature vertically upwards into the room.
  • the fresh air indoor unit may be turned upside down, and the silent blower 40 may vertically inject fresh air of a preset temperature into the lower room.
  • PM2.5 filter 20 adopts commercially available PM2.5 air filter, has dust removal and sterilization function, is used for carrying out dust removal and sterilization to outdoor space processing, which is installed on the lower part of the casing 10 and fixed on the bottom plate of the casing 10 by bolts.
  • the PM2.5 filter 20 includes a primary filter 21 , a dust collection filter module 22 and a charging module 33 .
  • the heat exchanger 30 can be installed and connected above the PM2.5 filter 20, and accordingly, the The silent blower 40 is installed above the heat exchanger 30 to reduce the flow path and flow time of outdoor air between the units in the fresh air indoor unit.
  • the heat exchanger 30 is at least two groups, and the heat exchanger (30) is installed at the air outlet position of the PM2.5 filter (20) , the silent blower (40) is installed at the air outlet of the heat exchanger (30) in a series arrangement.
  • the heat exchanger 30 plays different roles in different operation modes of the fresh air indoor unit according to usage requirements.
  • the two sets of heat exchangers 30 operate alternately, one set of heat exchangers 30 with refrigerant in the inner chamber is used for cooling and cooling of outdoor air, and the other set of inner chambers stops feeding the refrigerant while using Fresh air at normal temperature on the outer surface of the heat exchanger de-ices or defrosts the outer surface of the heat exchanger.
  • the two sets of heat exchangers 30 are arranged as heat exchangers and work simultaneously or in one group.
  • the necessary equipment for the unidirectional flow micro positive pressure temperature regulation fresh air system also includes the refrigerant inlet pipe 12 and the refrigerant return pipe respectively connected to the heat exchanger 30 13 and condensate drain pipe 14.
  • the refrigerant inlet pipe 12 is used to provide cooling or heating refrigerant to the heat exchanger 30.
  • the refrigerant can be gas or liquid, such as air, nitrogen or argon as a gas refrigerant, and water, brine, ethylene glycol or propylene glycol solution as a liquid refrigerant. etc., or low-temperature carbon dioxide, etc., depending on the needs.
  • the remote ends of the refrigerant inlet pipe 12 , the refrigerant return pipe 13 and the condensed water discharge pipe 14 are all arranged through the air inlet 11 .
  • the water discharge pipe 14 is hidden, which solves the problem of messy arrangement of the various pipes in the existing fresh air indoor unit, and improves the external aesthetics of the fresh air indoor unit.
  • the unidirectional flow micro-positive pressure temperature-regulated fresh air indoor unit also includes a humidifier (60) installed inside the casing (10); the humidifier (60) is installed in the Inside the casing (1), the humidifier (60) is an existing conventional humidifier, which is commercially available, and is mainly composed of a water storage device for collecting and returning water, a steam generator, regulating water temperature and fresh air setting temperature. The same water heating and cooling device composition.
  • a controller 70 arranged on the upper end surface or the top end surface of the front side of the casing 10,
  • the controller 70 adopts 4G wireless transmission and cloud control, and the controller 70 is electrically connected to the solenoid valves on the pipelines such as the silent fan 40 and the heat exchanger 30, and is connected to a double-set carbon dioxide gas concentration detection system at the same time for Control the start and stop of the silent fan 40, control the speed of the silent fan 40, and switch and control the two sets of heat exchangers 30 to operate alternately or simultaneously.
  • a remote controller wirelessly connected with the controller 70 is also equipped, and one remote controller can control one or more fresh air indoor units at the same time.
  • the controller 70 is also connected to the carbon dioxide concentration sensor (50), and the carbon dioxide concentration sensor (50) adopts a double configuration and works at the same time.
  • the silent fan will (40) Adjust the fresh air supply volume so that the indoor carbon dioxide concentration is controlled within the human health standard. That is, the carbon dioxide concentration sensor (50) provides a display alarm and a remote control alarm according to the measured carbon dioxide concentration in the fresh air after heat exchange, and when the carbon dioxide concentration reaches a concentration that affects human health, it will directly shut down and give an alarm.
  • the controller 70 is sequentially provided with a temperature display, a carbon dioxide concentration display, an air volume and wind pressure display, a timer switch display, a fault alarm, a power indicator light, an emergency stop button, and a power switch.
  • a temperature display a carbon dioxide concentration display
  • an air volume and wind pressure display a timer switch display
  • a fault alarm a power indicator light
  • an emergency stop button a power switch.
  • the temperature display, air volume and air pressure display and timing switch installed on the control panel of the device, the temperature, air volume and running time of the fresh air indoor unit can be set when the fresh air indoor unit is running. Easy to use.
  • the air conditioning system mainly includes a PM2.5 filter 20, a heat exchanger 30, a silent fan 40 and a controller 70 four functional units, the PM2.5 filter 20 , the heat exchanger 30 and the silent fan 40 are all packaged in the casing 10 .
  • the controller 70 is arranged on the surface of the casing 10, respectively connected to the silent fan 40, and connected to the switch solenoid valves before and after the PM2.
  • the fresh air volume can be adjusted according to the rate to form a healthy and comfortable air environment indoors with constant temperature wind, low wind speed, one-way flow, slight positive pressure, and no oxygen return.
  • the heat exchangers 30 are in two groups arranged in parallel. According to needs, the air conditioning system is controlled to be in heating or cooling mode. For example, when the system is cooling, two sets of heat exchangers 30 operate alternately, one set is used for cooling and cooling of outdoor air, and the other set uses the incoming outdoor air De-ice or defrost the external surface of the heat exchanger. When the system is heating, the two sets of heat exchangers 30 are all arranged as heat exchangers, and work simultaneously or as a group. In addition, double sets of heat exchangers 30 arranged in parallel are used to work alternately to de-ice or defrost the outer surface of the heat exchanger by using the heat of outdoor air, thereby ensuring the continuity and stability of the fresh air indoor unit.
  • the unidirectional flow micro-positive pressure temperature-regulated fresh air system also includes a carbon dioxide concentration sensor (50) and a humidifier (60) electrically connected to the controller 70, respectively.
  • the carbon dioxide concentration sensor (50) is electrically connected to the controller (70) for real-time monitoring of indoor carbon dioxide concentration;
  • the humidifier (60) is electrically connected to the controller (70) for adjusting the humidity of indoor fresh air and temperature to monitor indoor carbon dioxide concentration.
  • the standard air volume during fresh air operation is an air change rate of about once per hour.
  • the carbon dioxide concentration sensor (50) installed in the controller (70) and the indoor unit is all in the measuring position no matter what state the indoor unit is in.
  • the indoor unit fan 40 is automatically started, and the air volume of the fresh fan is kept at 350m3/hr.
  • the CO2 concentration drops to 800ppm, it will automatic
  • a unidirectional flow micro-positive pressure temperature regulation operation method based on the fresh air indoor unit of the first embodiment and the fresh air system of the second embodiment is provided, which includes the following steps:
  • the humidifier (60) When the humidity of the fresh air regulated by the heat exchanger (30) is lower than the set value, the humidifier (60) provides water vapor at the same temperature as the temperature-regulated air to make the humidity reach the set value. While keeping the temperature of the temperature-adjusting air unchanged;
  • the two sets of heat exchangers 30 are automatically controlled to operate alternately through the controller 70 or the preset timing switch display.
  • one set of heat exchangers 30 is used for cooling and cooling of outdoor air
  • another group of heat exchangers 30 uses the outdoor air to de-ice or defrost the outer surface of the heat exchanger.
  • single-connected or multi-connected indoor units can be used in homes, hospitals, schools, hotels, conference centers, etc.
  • the settings of the unidirectional flow micro-positive pressure temperature-regulated fresh air indoor unit are as follows:
  • a single temperature-adjusting fresh air indoor unit is suitable for spaces with an area of less than 50 square meters and an indoor volume of less than 150 cubic meters. If the volume of a single-room space is greater than 150 cubic meters, multiple units in a single-room space are operated in parallel.
  • the standard temperature-adjusted fresh air volume is 20% of the volume of the single-room space (the minimum air volume of a single indoor unit is not less than 30m3/hr)
  • the total temperature-adjusted fresh air volume is 20% of the volume of the single-room space (the minimum air volume of each indoor unit is not less than 30m3/hr)
  • the multi-line The temperature-adjusting air volume of indoor units is the same.
  • Each single-room space is equipped with a remote control, and the temperature of the temperature-adjusting air outlet of the indoor unit is the temperature set by the remote control; during operation, when the indoor carbon dioxide concentration is less than 800ppm, keep the temperature-regulating air volume at 20% of the space volume, and when the indoor carbon dioxide When the concentration reaches 800ppm, the temperature-regulating air volume is changed to 150m3/hr and maintained; when the temperature-regulated air volume is 150m3/hr and maintained, if the carbon dioxide concentration drops to 600ppm, the temperature-regulated air volume is changed to 20% of the space volume and maintained ; After the air volume of the temperature adjustment is changed to 150m3/hr, the carbon dioxide concentration continues to increase to 900ppm, the indoor unit is stopped to supply refrigerant, the air volume of the fresh air fan of the indoor unit is automatically adjusted to 350m3/hr, the remote control flashes and the sound alarms.
  • each zone can supply temperature-regulated air independently or the whole zone can supply temperature-regulated air with different set temperatures at the same time, and each zone adopts multi-connected mode, which can be used independently for a single zone or several zones.
  • the volume of the space is calculated based on the height that requires temperature control (generally calculated as a height of 3 meters), and the rest of the space is regarded as a space that does not need temperature control.
  • the indoor fresh air of the multi-unit groups in all areas must be turned on, and the air volume is the standard air volume (adjusted according to the space installation, the standard air volume of each indoor unit is the same, and the maximum temperature-adjusting air volume of each indoor unit is the same), and it needs to be adjusted.
  • the warm air area runs the refrigerant control program of the temperature-adjusted air, and each area is equipped with a remote control; the fresh air of the indoor units in all areas needs to be linked at the same time (purpose: regardless of whether the temperature-adjusted air is set, all areas are unidirectional flow Fresh air with the same pressure and velocity in all areas).
  • the air volume of all indoor units is changed to 200m3/hr and maintained; after the air volume of all indoor units is changed to 200m3/hr and maintained, if the carbon dioxide concentration drops to 600ppm, the air volume of all indoor units is changed to 600ppm. Operate and maintain the standard air volume; after the air volume of all indoor units is changed to 200m3/hr and maintained, and the carbon dioxide concentration continues to increase to 900ppm, the indoor unit is stopped from supplying refrigerant, and the air volume of the fresh air fan of the indoor unit is automatically adjusted to 350m3/hr. Blinks simultaneously with an audible alarm.
  • the unidirectional flow micro-positive pressure temperature-regulated fresh air indoor unit developed by the present invention uses a PM2.5 filter to remove dust and sterilize the outdoor air, and adjust the temperature of the fresh air after dust removal and sterilization to the set temperature through a heat exchanger If the humidity is lower than the set value, the humidity of the fresh air will be adjusted to the set value through the humidifier, and then the fresh air will be sent into the room through the low-noise fan, and the room will be kept in a one-way direction by adjusting the air volume of the low-noise fan.
  • the air supply volume will be adjusted so that the indoor space has a fresh air supply rate that ensures human health, achieving the goals of health, comfort, environmental protection, and energy saving, and satisfying people's expectations for high-quality work and the needs of life.
  • connection should be understood in a broad sense, which can be mechanical connection Or electrical connection, it can also be the internal communication of two components, it can be directly connected, "up”, “down”, “left”, “right”, etc. are only used to indicate the relative positional relationship, when the absolute position of the object being described Change, the relative positional relationship may change;

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  • Air Conditioning Control Device (AREA)

Abstract

La présente invention concerne le domaine technique du réglage de la température de l'air frais intérieur et fournit une unité intérieure d'air frais à réglage de température de pression micro-positive à écoulement unidirectionnel, ainsi qu'un système et un procédé de fonctionnement s'y rapportant. L'unité intérieure d'air frais comprend un boîtier, un filtre PM2.5, un humidificateur, un capteur de concentration en dioxyde de carbone, un échangeur thermique et un dispositif de commande. Une entrée d'air extérieur en communication avec une entrée du filtre PM2.5 est disposée sur le dos du boîtier et une sortie du filtre PM2.5 est en communication avec une entrée de l'échangeur thermique ; une sortie de l'échangeur thermique est reliée à un ventilateur silencieux monté sur le dessus du boîtier et une sortie d'air du ventilateur silencieux est disposée vers le haut ou vers le bas ou horizontalement. Dans la présente invention, la température de l'air frais est ajustée à une température définie par l'échangeur thermique, l'air frais est ensuite compressé dans un espace intérieur par le ventilateur à faible bruit et une pression micro-positive à écoulement unidirectionnel est maintenue à l'intérieur par réglage du volume d'air du ventilateur à faible bruit ; lorsque la concentration en dioxyde de carbone intérieur est supérieure à une norme de santé, la quantité d'alimentation en air est ajustée, de telle sorte que l'espace intérieur a une vitesse d'alimentation en air frais pour assurer la santé humaine et les objectifs de santé, de confort, de convivialité et d'économie d'énergie sont obtenus.
PCT/CN2022/123411 2021-09-30 2022-09-30 Unité intérieure d'air frais à réglage de température de pression micro-positive à écoulement unidirectionnel, système et procédé de fonctionnement s'y rapportant WO2023051803A1 (fr)

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WO2018058716A1 (fr) * 2016-10-01 2018-04-05 戴文 Purificateur d'air frais tout-en-un
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CN208090878U (zh) * 2018-01-16 2018-11-13 侍家（北京）科技有限公司 一种可增减功能模块的新风机
CN209181185U (zh) * 2018-11-12 2019-07-30 北京万链建筑科技有限公司 一种正压单向流新风机
WO2021159934A1 (fr) * 2020-02-12 2021-08-19 青岛海尔空调电子有限公司 Machine de ventilation de chaleur totale

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104165423A (zh) * 2014-06-24 2014-11-26 南京嘉涛科技有限公司 一种富氧和空气净化组合装置
CN105276686A (zh) * 2015-11-12 2016-01-27 青岛莱菲尔电器有限公司 一种空气处理装置和处理方法
WO2018058716A1 (fr) * 2016-10-01 2018-04-05 戴文 Purificateur d'air frais tout-en-un
CN206449744U (zh) * 2017-01-24 2017-08-29 四川恒誉大通节能环保科技有限公司 新风空气净化器装置
CN107192081A (zh) * 2017-07-24 2017-09-22 北京碧水源膜科技有限公司 一种新风换气装置和全自动智能换气设备
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CN209181185U (zh) * 2018-11-12 2019-07-30 北京万链建筑科技有限公司 一种正压单向流新风机
WO2021159934A1 (fr) * 2020-02-12 2021-08-19 青岛海尔空调电子有限公司 Machine de ventilation de chaleur totale

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