CN111536644A - Indoor air epidemic prevention and purification system based on unidirectional flow wall-mounted fresh air machine - Google Patents
Indoor air epidemic prevention and purification system based on unidirectional flow wall-mounted fresh air machine Download PDFInfo
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- CN111536644A CN111536644A CN202010408059.XA CN202010408059A CN111536644A CN 111536644 A CN111536644 A CN 111536644A CN 202010408059 A CN202010408059 A CN 202010408059A CN 111536644 A CN111536644 A CN 111536644A
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- 230000002265 prevention Effects 0.000 title claims abstract description 19
- 238000000746 purification Methods 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 15
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 241000700605 Viruses Species 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 101100323157 Arabidopsis thaliana LAP1 gene Proteins 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 241000711573 Coronaviridae Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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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
- F24F7/007—Ventilation with forced flow
- F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
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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
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
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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
- 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
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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
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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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
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- 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
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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
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
- F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
- F24F2011/0004—Control or safety arrangements for ventilation for admittance of outside air to create overpressure in a room
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/66—Volatile organic compounds [VOC]
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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
- 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
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an indoor air epidemic prevention and purification system based on a one-way flow wall-mounted fresh air fan, which comprises a plurality of one-way flow wall-mounted fresh air fans and a whole-house controller, wherein a main control module in the whole-house controller is connected with a control module in the one-way flow wall-mounted fresh air fan through an RS485 communication module, the control module further comprises an air quality detection sensor, an outdoor temperature sensor, an air supply air valve, an indoor return air valve, a fresh air valve and an air direction switching air valve, and the mode switching of the one-way flow wall-mounted fresh air fans is controlled through the main control module or the control module. The invention has simple structure and reasonable design, reduces the economic cost while realizing the comfort, and has strong epidemic prevention capability.
Description
Technical Field
The invention relates to an indoor air epidemic prevention and purification system, in particular to an indoor air epidemic prevention and purification system based on a unidirectional flow wall-mounted fresh air fan.
Background
The wall-hanging new fan of uniflow can install life workplaces such as family, school, public place, official working field, installs after being applicable to the fitment, need not to lay the pipeline, does not influence furred ceiling and whole fitment, and later maintenance is convenient, can provide fresh oxygen boosting, clean indoor air quality demand for the user. However, with the reconcognition of infectious diseases caused by the novel coronavirus epidemic, the existing one-way flow wall-mounted fresh air machine in the current market generally has the defects that an effective airflow tissue form cannot be formed indoors to prevent virus diffusion, the pollution discharge efficiency is low, virus bacteria cannot be diluted quickly, cross infection cannot be prevented, the epidemic prevention capacity is low, the machine is named as one-way flow wall-mounted fresh air purifier, the application numbers are CN201721133704.1 and one-way flow fresh air system, and the two utility model patents with the application numbers of CN201821867136.2 all have the problems.
Disclosure of Invention
In order to solve the problems, the invention provides an indoor air epidemic prevention and purification system which is suitable for being installed after decoration in families, schools, public places, office buildings and the like and has certain epidemic prevention capacity.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the invention relates to an indoor air epidemic prevention and purification system based on a unidirectional flow wall-mounted fresh air machine, which comprises unidirectional flow wall-mounted fresh air machines and a whole-house controller, wherein the unidirectional flow wall-mounted fresh air machines are distributed in a plurality of rooms, a main control module in the whole-house controller is communicated with a control module in the nearest unidirectional flow wall-mounted fresh air machine through an RS485 communication module, the control module in the unidirectional flow wall-mounted fresh air machine carries out signal transmission through an upper computer communication module, the RS485 communication module and the main control module, an upper computer module in each unidirectional flow wall-mounted fresh air machine is provided with a sending signal port A, a receiving signal port B and a grounding port GND, and a sending signal port A and a receiving signal port B of an upper computer module of the next unidirectional flow wall-mounted fresh air machine and a sending signal port A, a receiving signal port B, a sending signal port A and a grounding, The control module in the unidirectional flow wall-mounted fresh air machine also comprises an air quality detection sensor for detecting indoor control quality, an outdoor temperature sensor, an air supply air valve, an indoor return air valve, a fresh air valve and an air direction switching air valve, and the control module in the unidirectional flow wall-mounted fresh air machine is electrically connected with a display panel on the outer surface of the unidirectional flow wall-mounted fresh air machine;
the main control module or the control module controls the corresponding one-way flow wall-mounted fresh air blower to switch between a positive pressure air supply mode and a negative pressure air exhaust mode;
under the positive pressure air supply mode, a fresh air valve and an air supply valve in the unidirectional flow wall-mounted fresh air machine are in an open state, an indoor return air valve and an air direction switching air valve are in a closed state, and at the moment, outdoor fresh air is introduced from an outdoor fresh air port and is discharged into a room from an indoor air supply port;
when the air conditioner is in a negative pressure air exhaust mode, the fresh air valve and the air supply valve are in a closed state, the indoor return air valve and the air direction switching air valve are in an open state, and at the moment, indoor return air is introduced from the indoor return air inlet and is exhausted outdoors from the outdoor fresh air inlet.
The invention is further improved in that: the air quality detection sensor comprises CO2Sensors, VOC sensors and PM2.5 sensors.
The invention is further improved in that: the one-way flow wall-mounted fresh air machine comprises a machine body, wherein an indoor air supply outlet is arranged at the top of the machine body, a filtering cavity is arranged in the machine body at the lower end of the indoor air supply outlet, an HEPA (high efficiency particulate air) filtering net and an initial effect filtering net are arranged in the filtering cavity, a left cavity is arranged at the left side in the machine body at the lower end of the filtering cavity, a right upper cavity and a right lower cavity are arranged in the machine body at the right side of the left cavity, a fan is arranged in the left cavity and discharges air in the left cavity to the right upper cavity, an indoor return air inlet communicated with the left cavity is arranged on the left side wall of the machine body, an indoor return air valve is arranged in the left cavity at the indoor return air inlet, the left cavity is communicated with the right lower cavity through an air channel, a fresh air valve is arranged in the left cavity, the left lower cavity at the wind direction switching port is internally provided with a wind direction switching air valve, an air supply port is arranged between the right upper cavity and the filtering cavity, and the right upper cavity at the air supply port is internally provided with an air supply air valve.
The invention is further improved in that: the air supply air valve, the indoor return air valve, the fresh air valve and the wind direction switching air valve are all switch type electric air valves.
The invention has the beneficial effects that: the unidirectional flow wall-mounted fresh air fan has the functions of positive pressure air supply and negative pressure air exhaust, can meet the requirements that introduced outdoor fresh air is filtered and purified and then is sent indoors to meet the requirements of comfort and cleanness, can quickly discharge pollutants such as indoor virus, bacteria and PM2.5 peculiar smell and the like, improves the pollution discharge efficiency and achieves the effect of quick purification, and can effectively prevent the pollutants from diffusing to other rooms by creating negative pressure in local rooms and positive pressure in other rooms. By applying the distributed networking control technology, the clean room can be kept in a micro-positive pressure state, the polluted room is kept in a micro-negative pressure state, the risk of cross infection caused by indoor virus diffusion is effectively prevented by changing the indoor airflow organization form, and the distributed networking control method is particularly suitable for families and some specific public places such as schools, office buildings and the like.
The invention has simple structure and reasonable design, reduces the economic cost while realizing the comfort, and has strong epidemic prevention capability.
Drawings
Fig. 1 is a network distributed control topology of the present invention.
Fig. 2 is a control block diagram of a one-way flow wall-mounted fresh air machine.
Fig. 3 is a structural schematic diagram of a one-way flow wall-mounted fresh air machine.
Fig. 4 is a schematic view of an indoor return air inlet of a one-way flow wall-mounted fresh air machine.
Fig. 5 is a schematic view of an indoor air supply outlet of a one-way wall-mounted fresh air machine.
Detailed Description
For the purpose of enhancing understanding of the present invention, the present invention will be described in detail with reference to the following examples and drawings, which are provided for the purpose of illustration only and do not limit the scope of the present invention.
As shown in figures 1-5, the invention is an indoor air epidemic prevention and purification system based on a unidirectional flow wall-mounted fresh air machine, the indoor air epidemic prevention and purification system comprises unidirectional flow wall-mounted fresh air machines 1 and a whole-house controller 2 which are distributed in a plurality of rooms, a main control module in the whole-house controller 2 is communicated with a control module 11 in the nearest unidirectional flow wall-mounted fresh air machine 1 through an RS485 communication module 21, the control module 11 in the unidirectional flow wall-mounted fresh air machine 1 carries out signal transmission through an upper computer communication module 111, an RS485 communication module 21 and the main control module, the upper computer module 111 in each unidirectional flow wall-mounted fresh air machine 1 is provided with a sending signal port A, a receiving signal port B and a grounding port GND, and the sending signal port A and the receiving signal port B of the upper computer module 111 of the next unidirectional flow wall-mounted fresh air machine 1 are respectively connected with the sending signal port A and the receiving signal port B of the upper computer module 111 of the previous unidirectional flow wall-mounted fresh, The receiving signal port B is connected, the RS485 communication module 21 is electrically connected with the main control module, the display screen 22 is arranged on the whole house controller 2, the display screen 22 is electrically connected with the main control module, the control module 11 in the unidirectional flow wall-mounted fresh air fan 1 further comprises an air quality detection sensor for detecting indoor control quality, an outdoor temperature sensor 112, an air supply air valve 113, an indoor return air valve 114, a fresh air valve 115 and an air direction switching air valve 116, and the control module 11 in the unidirectional flow wall-mounted fresh air fan 1 is electrically connected with the display panel 12 on the outer surface of the unidirectional flow wall-mounted fresh air fan 1; the display panel 12 is a touch display screen.
The main control module or the control module 11 controls the corresponding one-way flow wall-mounted fresh air blower 1 to switch between a positive pressure air supply mode and a negative pressure air exhaust mode;
under the positive pressure air supply mode, a fresh air valve 115 and an air supply valve 113 in the one-way flow wall-mounted fresh air fan 1 are in an open state, an indoor return air valve 114 and an air direction switching air valve 116 are in a closed state, and at the moment, outdoor fresh air is introduced from an outdoor fresh air inlet and is discharged into the room from an indoor air supply outlet 13;
in the negative pressure air exhaust mode, the fresh air valve 115 and the supply air valve 113 are in the closed state, the indoor return air valve 114 and the air direction switching air valve 116 are in the open state, and at the moment, the indoor return air is introduced from the indoor return air inlet 17 and is exhausted to the outdoor from the outdoor fresh air inlet 18.
The one-way flow wall-mounted fresh air fan 1 comprises a machine body, wherein an indoor air supply outlet 13 is arranged at the top of the machine body, a filtering cavity is arranged in the machine body at the lower end of the indoor air supply outlet 13, an HEPA filtering net 14 and an initial effect filtering net 15 are arranged in the filtering cavity, a left cavity is arranged at the left side in the machine body at the lower end of the filtering cavity, a right upper cavity and a right lower cavity are arranged in the machine body at the right side of the left cavity, a fan 16 is arranged in the left cavity, the fan 16 discharges air in the left cavity into the right upper cavity, an indoor air return port 17 communicated with the left cavity is arranged on the left side wall of the machine body, an indoor air return valve 114 is arranged in the left cavity at the indoor air return port 17, the left cavity is communicated with the right lower cavity through an air duct, a fresh, the right lower cavity and the right upper cavity are communicated through a wind direction switching port, a wind direction switching air valve 116 is arranged in the left lower cavity at the wind direction switching port, an air supply port is arranged between the right upper cavity and the filtering cavity, and an air supply air valve 113 is arranged in the right upper cavity at the air supply port. The supply air valve 113, the indoor return air valve 114, the fresh air valve 115, and the direction switching air valve 116 are all rectangular switch-type electric air valves.
Wherein the air quality detection sensor comprises CO2Sensor 117, VOC sensor 118 and PM2.5 sensor 119. Besides the mode and the wind speed of the corresponding one-way flow wall-mounted fresh air machine 1 manually operated by the user through the display panel 12, the control module 11 can also operate according to the CO2The sensor 117, the VOC sensor 118 and the PM2.5 sensor 119 detect that the indoor air data automatically run, and the VOC is poor, namely the detected formaldehyde concentration is more than 0.1 mg/m3Or the benzene concentration is more than 0.11 mg/m3Or the TVOC concentration is more than 0.6 mg/m3Or PM25 the concentration of the particles is more than 75 mu g/m3Or CO2When the concentration is more than 1000 PPM, the negative pressure air exhaust mode is automatically switched, the air speed is high, and the air speed gear before switching is recorded through a storage module on the control module 11; when the wall-hanging new fan of uniflow 1 is in the automatic operation course of working, control module 11 detects the air quality, before the air quality index reaches the excellent standard, the excellent concrete standard data of air quality satisfies simultaneously: at a formaldehyde concentration of less than 0.08 mg/m3The concentration of benzene is less than 0.09 mg/m3The TVOC concentration is less than 0.5 mg/m3Under the condition that VOC is excellent, and the concentration of PM2.5 particles is less than 35 mu g/m3、CO2The concentration is less than 500 PPM, the one-way flow wall-mounted fresh air fan 1 is always in a negative pressure air exhaust mode, and the air speed is high; when the unidirectional flow wall-mounted fresh air fan 1 is in an automatic operation working process, the control module 11 detects the air quality in real time, after the air quality index reaches an excellent standard, the control module 11 compares the air quality data every 5 minutes, if the air quality data is found to be continuously optimized within the working time of 5 minutes, the unidirectional flow wall-mounted fresh air fan 1 exits from a negative pressure air exhaust mode, is switched to a positive pressure air supply mode, and is restored to the air speed gear before switching, and the process is realized through the programming of a single chip microcomputer in the control module 11.
In ordinary times, a user manually operates the whole house display screen, the fresh air fans in all the rooms are controlled to be in a positive pressure air supply mode, fresh air operation air supply is achieved, micro positive pressure is formed in the whole house, outdoor viruses, PM2.5 and other pollutants are prevented from permeating into the whole house, and air breathed by a human body is discharged outdoors through door and window gaps and an exhaust outlet of a toilet. In a special period, a user manually operates the whole house display screen, controls a fresh air fan of a polluted room to be in a negative pressure air exhaust mode, quickly exhausts indoor pollutants, achieves the effect of quickly diluting the concentration of pollutants such as viruses and bacteria and the like, and enables the polluted room to form local negative pressure; and controlling the fresh air fans of other rooms to be in a positive pressure air supply mode, and keeping positive pressure. Indoor air flows from the positive pressure room to the negative pressure room, and virus diffusion is prevented by changing the whole room air flow organization form.
The invention has simple structure and reasonable design, reduces the economic cost while achieving the aim of comfort and has strong epidemic prevention capability.
Claims (4)
1. The utility model provides an indoor air epidemic prevention clean system based on wall-hanging new fan of uniflow which characterized in that: indoor air epidemic prevention clean system is including distributing at the wall-hanging new fan of unidirectional flow (1) and whole room controller (2) in several rooms, master control module in whole room controller (2) passes through RS485 communication module (21) intercommunication with it nearest control module (11) in the wall-hanging new fan of unidirectional flow (1), this control module (11) in the wall-hanging new fan of unidirectional flow (1) are through host computer communication module (111), RS485 communication module (21) with master control module carries out signal transmission, and host computer module (111) in every wall-hanging new fan of unidirectional flow (1) all have send signal port A, received signal port B and ground connection port GND, and next send signal port A, received signal port B of host computer module (111) of the wall-hanging new fan of unidirectional flow (1) respectively with the previous one the send signal end of the upper computer module (111) of the wall-hanging new fan of unidirectional flow (1) The control system comprises a port A and a receiving signal port B, wherein an RS485 communication module (21) is electrically connected with a main control module, a display screen (22) is arranged on a whole-house controller (2), the display screen (22) is electrically connected with the main control module, a control module (11) in a unidirectional flow wall-mounted fresh air fan (1) further comprises an air quality detection sensor for detecting indoor control quality, an outdoor temperature sensor (112), an air supply air valve (113), an indoor return air valve (114), a fresh air valve (115) and an air direction switching air valve (116), and the control module (11) in the unidirectional flow wall-mounted fresh air fan (1) is electrically connected with a display panel (12) on the outer surface of the unidirectional flow wall-mounted fresh air fan (1);
the main control module or the control module (11) controls the corresponding one-way flow wall-mounted fresh air fan (1) to switch between a positive pressure air supply mode and a negative pressure air exhaust mode;
under a positive pressure air supply mode, the fresh air valve (115) and the air supply valve (113) in the one-way flow wall-mounted fresh air fan (1) are in an open state, the indoor return air valve (114) and the air direction switching air valve (116) are in a closed state, and at the moment, outdoor fresh air is introduced from the outdoor fresh air port (18) and is discharged to the indoor from the indoor air supply port (13);
and under the negative pressure air exhaust mode, the fresh air valve (115) and the air supply valve (113) are in a closed state, the indoor return air valve (114) and the air direction switching air valve (116) are in an open state, and at the moment, indoor return air is introduced from the indoor return air inlet (17) and is exhausted to the outside from the outdoor fresh air inlet (18).
2. The indoor air epidemic prevention and purification system based on the unidirectional flow wall-mounted fresh air machine according to claim 1, characterized in that: the air quality detection sensors include a CO2 sensor (117), a VOC sensor (118), and a PM2.5 sensor (119).
3. The indoor air epidemic prevention and purification system based on the unidirectional flow wall-mounted fresh air machine according to claim 1, characterized in that: the one-way flow wall-mounted fresh air fan (1) comprises a fan body, an indoor air supply outlet (13) is arranged at the top of the fan body, a filtering cavity is arranged in the fan body at the lower end of the indoor air supply outlet (13), an HEPA filter screen (14) and an initial effect filter screen (15) are arranged in the filtering cavity, a left cavity is arranged at the left side in the fan body at the lower end of the filtering cavity, a right upper cavity and a right lower cavity are arranged in the fan body on the right side of the left cavity, a fan (16) is arranged in the left cavity, the fan (16) discharges air in the left cavity into the right upper cavity, an indoor air return inlet (17) communicated with the left cavity is arranged on the left side wall of the fan body, an indoor air return valve (114) is arranged in the left cavity at the indoor air return inlet (17, the left side cavity with the cavity passes through the wind channel intercommunication under the right side the wind channel department be provided with fresh air valve (115) in the cavity of left side be provided with outdoor fresh air mouth (18) in the cavity of right side down, the cavity under the right side with switch mouthful intercommunication through the wind direction on the right side between the cavity be provided with wind direction switching air valve (116) in the cavity of right side down wind direction switching mouthful department, on the right side the cavity with filter and be provided with the supply-air outlet between the cavity be provided with air supply air valve (113) in the cavity of right side.
4. The indoor air epidemic prevention and purification system based on the one-way flow wall-mounted fresh air machine (16) according to claim 3, characterized in that: the air supply air valve (113), the indoor return air valve (114), the fresh air valve (115) and the wind direction switching air valve (116) are all switch type electric air valves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010408059.XA CN111536644A (en) | 2020-05-14 | 2020-05-14 | Indoor air epidemic prevention and purification system based on unidirectional flow wall-mounted fresh air machine |
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| CN202010408059.XA CN111536644A (en) | 2020-05-14 | 2020-05-14 | Indoor air epidemic prevention and purification system based on unidirectional flow wall-mounted fresh air machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116294058A (en) * | 2023-05-08 | 2023-06-23 | 深圳三爱健康科技有限公司 | Method and system for regulating and controlling air states of multiple independent spaces in whole room |
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| CN116294058B (en) * | 2023-05-08 | 2023-09-22 | 深圳三爱健康科技有限公司 | Method and system for regulating and controlling air states of multiple independent spaces in whole room |
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