CN113899045A - Fresh air control method, fresh air control system, fresh air system and building - Google Patents
Fresh air control method, fresh air control system, fresh air system and building Download PDFInfo
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- CN113899045A CN113899045A CN202111247345.3A CN202111247345A CN113899045A CN 113899045 A CN113899045 A CN 113899045A CN 202111247345 A CN202111247345 A CN 202111247345A CN 113899045 A CN113899045 A CN 113899045A
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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
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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
- F24F11/62—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
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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
- F24F11/70—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
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F7/00—Ventilation
- F24F7/003—Ventilation in combination with air cleaning
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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
- 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
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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
- 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
- F24F8/15—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 chemical means
- F24F8/158—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 chemical means using active carbon
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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
- 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
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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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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Abstract
The invention relates to a fresh air control method, a fresh air control system, a fresh air system and a building, belonging to the fresh air technical field, wherein the building is provided with an indoor space, the indoor space is provided with at least one first space and at least one second space, and the fresh air system at least comprises: at least one air treatment device for feeding purified air into the first space and at least one air propulsion device for propelling purified air from the first space to the respective second space, the method comprising: acquiring human activity detection information of an indoor space, wherein the human activity detection information at least comprises light sensation detection information representing the movement condition of a person; and controlling the air treatment equipment to be shifted up when the human activity detection information meets the human activity condition, and controlling the air treatment equipment to be shifted down when the human activity detection information meets the no human activity condition. The invention has the beneficial effects that: the reaction is more sensitive, the intelligent degree is high, and the energy consumption is saved.
Description
Technical Field
The invention relates to the technical field of fresh air, in particular to a fresh air control method, a fresh air control system, a fresh air system and a building.
Background
The traditional fresh air system judges the activity condition of indoor personnel through the content of carbon dioxide, when personnel move, the content of carbon dioxide rises, then the fresh air system is controlled to be opened or shifted up, and when no personnel move, the content of carbon dioxide reduces, then the fresh air system is controlled to be closed or shifted down.
However, the single carbon dioxide index is adopted, and the method has the defect of insensitive response, for example, when a person just enters a room, the carbon dioxide content needs a period of time to rise to a set threshold, and in the period of time, a fresh air system cannot be opened or shifted up, so that the air quality is poor.
In order to solve the problems, the invention provides a fresh air control method, a fresh air control system, a fresh air system and a building.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present invention provides a fresh air control method for controlling a fresh air system of a building, the building having an indoor space, the indoor space having at least one first space and at least one second space, the fresh air system at least comprising: at least one air treatment device for feeding purified air into the first space and at least one air propulsion device for each propelling purified air of the first space to the respective second space, the method comprising: acquiring human activity detection information of the indoor space, wherein the human activity detection information at least comprises light sensation detection information representing personnel motion conditions; performing a first up-shift operation when the human activity detection information satisfies a human activity condition, the first up-shift operation including controlling the air handling equipment to up-shift, and performing a first down-shift operation when the human activity detection information satisfies a human activity condition, the first down-shift operation including controlling the air handling equipment to down-shift.
By adopting the method, the movement condition of the personnel is detected in a light sensing detection mode, once the personnel enters the room and the activity condition of the personnel is met, the system can automatically control the air treatment equipment to be shifted up, fresh air can be immediately fed, the response is more sensitive, the defect that the fresh air cannot be fed in a period of time after the personnel enter the room is overcome, and the indoor air quality is improved; if the indoor personnel walk out and meet the unmanned activity condition, the system can automatically shift down, the intelligent degree is high, and the energy consumption is saved.
Preferably, each of the first spaces or the second spaces is provided with a fresh air switch for controlling the fresh air system to be turned on or turned off; the method further comprises the following steps: and executing a second upshift operation in response to one of the fresh air switches when the one of the fresh air switches is turned on, the second upshift operation comprising controlling the air handling equipment to upshift, and/or executing a second downshift operation in response to one of the fresh air switches when the one of the fresh air switches is turned off, the second downshift operation comprising controlling the air handling equipment to downshift.
Preferably, the first upshift operation means that the gear of the air treatment device is shifted from a b-th gear to an a-th gear, a-b-c, a, b, c being integers, and a being greater than b, c being the total number of the first spaces or the second spaces from satisfying the no-human activity condition to satisfying the human activity condition; and/or the first downshift operation is a gear shift of the air handling device from a d-th gear to an e-th gear, d-e ═ f, d, e, f are integers, and d is greater than e, f being the total number of the first spaces or the second spaces that change from satisfying the human activity condition to satisfying the no human activity condition.
Preferably, when the air handling apparatus is controlled to perform the first downshift operation during a daytime period, the air handling apparatus is controlled to supply air in an amount greater than or equal to 0 during the daytime period; and/or when the air handling device is controlled to perform the first downshift operation during the nighttime period, e is an integer greater than d/2, and/or when the air handling device is controlled to perform the first upshift operation after the first downshift operation during the nighttime period, the gear before the downshift is d1, and the gear after the upshift is a1, then a1 is less than or equal to d 1.
Preferably, the building has at least one indoor door, each indoor door for accessing a respective said second space, the method further comprising: when a fresh air switch of the second space is turned on, state information of the indoor door corresponding to the second space is acquired; if the indoor door is in an open state, controlling the air propulsion equipment corresponding to the second space to be closed; and if the indoor door is in a closed state, controlling the air propulsion equipment corresponding to the second space to be opened.
Preferably, the second upshift operation means: if the fresh air switches in the first space are turned on, and the number of the turned-on fresh air switches is n, the air processing equipment is raised by n steps, wherein n is an integer; if the fresh air switches of the second space are started and the number of the started fresh air switches is k, the initial gear of the air treatment equipment is set to be k +1 gear or k gear is increased on the basis of the started gear, wherein k is an integer; and/or the second downshift operation is: if the fresh air switch in the first space or the second space is closed, and the number of the closed fresh air switches is t, the air processing equipment reduces the gear t, wherein t is an integer.
Preferably, if the carbon dioxide content information of the indoor space exceeds a third preset threshold, an alarm operation is started, the air processing equipment is controlled to be started to the maximum air volume, and the gear of the air propulsion equipment corresponding to the indoor space is controlled to be adjusted to a high gear.
A fresh air control system for controlling a fresh air system of a building having an interior space, the interior space having a first space and at least one second space, the building having at least one indoor door, each indoor door for accessing a respective second space, the system comprising: a controller, and at least one fresh air switch and at least one induction component in communication with the controller; each sensing assembly comprises a sensor for acquiring state information of an indoor door corresponding to the second space and human activity detection information, wherein the human activity detection information at least comprises light detection information; the controller is used for executing the method.
A fresh air system for a building having an interior space, the interior space having a first space and at least one second space, the building having at least one interior door, each of the interior doors for accessing a respective one of the second spaces, the fresh air system comprising: an air treatment device for feeding purified air into said first space, at least one air propulsion device, each said air propulsion device for propelling purified air of said first space to a respective said second space; and at least one exhaust apparatus for exhausting air of the corresponding second space to the outside.
A building, the building have the interior space and with interior space complex new trend system, the interior space has first space and at least one second space, the building has at least one indoor door, every indoor door is used for the business turn over corresponding the second space, the new trend system does the new trend system.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
FIG. 1 is an embodiment of a fresh air system;
FIG. 2 is another embodiment of a fresh air system;
FIG. 3 is a schematic diagram of the operation of the fresh air control system;
FIG. 4 is a schematic air flow diagram of a fresh air system;
in the figure: 1-first space, 2-second space, 3-air handling equipment, 4-air propulsion equipment, 5-one-way valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-2, a fresh air control method is used for controlling a fresh air system of a building, the building has an indoor space, the indoor space has at least one first space 1 and at least one second space 2, the fresh air system at least includes: at least one air treatment device 3 for feeding purified air into the first space 1 and at least one air propulsion device 4, each air propulsion device 4 being adapted to propel purified air of the first space 1 to the respective second space 2, the method comprising: acquiring human activity detection information of an indoor space, wherein the human activity detection information at least comprises light sensation detection information representing the movement condition of a person; when the human activity detection information satisfies the human activity condition, a first upshift operation is performed, the first upshift operation including controlling the air handling equipment 3 to upshift, and when the human activity detection information satisfies the human activity condition, a first downshift operation is performed, the first downshift operation including controlling the air handling equipment 3 to downshift.
By adopting the method, the movement condition of the personnel is detected in a light sensing detection mode, once the personnel enters the room and the activity condition of the personnel is met, the system can automatically control the air treatment equipment 3 to be shifted up, fresh air can be immediately sent, the response is more sensitive, the defect that the fresh air cannot be sent in a period of time after the personnel enter the room is overcome, and the indoor air quality is improved; if the indoor personnel walk out and meet the unmanned activity condition, the system can automatically shift down, the intelligent degree is high, and the energy consumption is saved.
In one embodiment, the first upshift operation refers to the gear of the air treatment apparatus 3 being shifted from the b-th gear to the a-th gear, a-b being c, a, b, c being integers, and a being greater than b, c being the total number of the first spaces 1 or the second spaces 2 that change from satisfying the no-human activity condition to satisfying the human activity condition; and/or the first downshift operation means that the gear of the air handling device 3 is shifted from the d-th gear to the e-th gear, d-e is f, d, e, f are integers, and d is greater than e, f being the total number of the first spaces 1 or the second spaces 2 that change from satisfying the manned activity condition to satisfying the unmanned activity condition.
For example, the initial gear of the air processing device 3 is 4, if there are two new second spaces 2 satisfying the manned activity condition, the gear of the air processing device 3 is increased to 6, and if there are two of the second spaces 2 satisfying the unmanned activity condition, the gear of the air processing device 3 is decreased to 2.
If indoor unmanned when the new trend passes through first space 1, then oxygen can not be consumed in the new trend, can directly reach second space 2, when consequently first space 1 satisfies the manned condition, can carry out the upshift, when satisfying the unmanned condition, can carry out the downshift.
Of course, the first upshift operation and the first downshift operation can occur after the fresh air system is started and an initial gear is set, that is, the system automatically shifts gears, and the lowest gear can be shifted to 0; the system can be automatically started when the fresh air system is in a closed state, and the initial gear of the air processing equipment 3 is 0 gear at the moment.
In the first gear-up operation and the first gear-down operation, the system can be automatically controlled to be shifted up or started or shifted down according to the change condition of the number of the indoor space personnel activity spaces, and the air quantity can be automatically adjusted.
In a further aspect, when the air treatment device 3 is controlled to perform the first downshift operation during the daytime period, the air supply amount of the air treatment device 3 during the daytime period is greater than or equal to 0; and/or when the air handling device 3 is controlled to perform the first downshift operation during the nighttime period, e is an integer greater than d/2, and/or when the air handling device 3 is controlled to perform the first downshift operation before the first upshift operation during the nighttime period, the gear before the downshift is d1, and the gear after the upshift is a1, then a1 is less than or equal to d 1.
For example, when the first downshift operation is performed during the nighttime, if the initial gear of the air handling device 3 is 5, and 3 of the indoor spaces become to satisfy the no-human activity condition, the air handling device 3 is lowered to 3 lowest, that is, is not lowered any more, because the light-sensitive detection information is detected by the movement of the person, if the person is asleep, the person does not move and the amount of carbon dioxide emission is small, the system may feed back no-human signal, and in order to ensure the air quality when the person is asleep, the air handling device 3 is not lowered to d/2 lowest at night, which may be set according to the space condition and the indoor person condition, and is not limited to d/2;
after the air treatment equipment 3 is shifted to 3 gears, if 3 indoor spaces meet the condition of human activity, the gear of the air treatment equipment 3 is shifted to 5 gears at most, and is not shifted to 6 gears, and the gear does not exceed the initial set gear.
By adopting the method, the gear can be automatically adjusted to be low after the person sleeps at night, the energy consumption is saved, meanwhile, the gear is reduced by no more than half of the initial gear, the sufficient air supply amount can be ensured during the process of sleeping at night, and the air quality and the sleeping quality are improved.
In the invention, the night time period can be 21:00 to 8:00 of the next day, the day time period can be 8:00 to 21:00, and the adaptability can be adjusted according to the indoor space situation after the user is used to the habit.
In one embodiment, the building has at least one indoor door, each for accessing a respective second space 2, the method further comprising: when the fresh air switch of the second space 2 is opened, state information of a corresponding indoor door of the second space 2 is acquired, wherein the state information comprises that the indoor door is in an opened state or a closed state; if the indoor door is in an open state, controlling the air propulsion equipment 4 corresponding to the second space 2 to close; and if the indoor door is in a closed state, controlling the corresponding air propulsion device 4 of the second space 2 to be opened.
The fresh air in the first space 1 is sent into the second space 2 through an indoor door or an air propulsion device 4, one of the two spaces can be opened, in order to save energy consumption, the fresh air system automatically acquires state information of the indoor door, and whether the air propulsion device 4 is opened or not is automatically judged according to the information.
In one embodiment, when it is determined that the human activity detection information is the human activity detection information of the second space 2 and the human activity detection information satisfies the no human activity condition, if it is in the daytime period, the air propulsion device 4 corresponding to the second space 2 is controlled to be turned to the off gear; and/or if in the nighttime period, controlling the corresponding air propulsion device 4 of the second space 2 to be shifted to the low gear.
If the person is in a deep sleep state, the person does not move and the carbon dioxide release amount is small, the system can feed back an unmanned signal, in order to ensure the air quality of the person in the deep sleep state, the air propelling device 4 can be automatically shifted down after the person is in the deep sleep state at night, the energy consumption is saved, and the air quality and the sleep quality are improved. During the daytime, the activity of the person is greater, and if the unmanned activity signal is fed back, the air propulsion device 4 can be directly turned off.
Besides the first gear-up operation and the first gear-down operation, the system can also set gears according to the opening of the fresh air switch.
In one embodiment, each first space 1 or second space 2 is respectively provided with a fresh air switch for controlling the on or off of a fresh air system; the method further comprises the following steps: when one of the fresh air switches is turned on, a second upshift operation in response to the fresh air switches is performed, the second upshift operation including controlling the air handling equipment 3 to upshift, and/or when one of the fresh air switches is turned off, a second downshift operation in response to the fresh air switches is performed, the second downshift operation including controlling the air handling equipment 3 to downshift.
The fresh air switch can be a combination of a manual switch and an automatic induction switch, personnel can manually turn on or off by themselves, and the system can also automatically control the switch according to an induced signal.
The specific method for responding to the fresh air switch is as follows:
the second upshift operation means: if the fresh air switches of the first space 1 are started, and the number of the started fresh air switches is n, the air processing equipment 3 is raised by n steps, wherein n is an integer; if the fresh air switches of the second space 2 are started and the number of the started fresh air switches is k, the initial gear of the air processing equipment 3 is set to be k +1 gear, or k gear is increased on the basis of the started gear, wherein k is an integer; and/or the second downshift operation is: if the fresh air switch of the first space 1 or the second space 2 is closed, and the closed number of the fresh air switch is t, the air processing equipment 3 reduces the gear t, wherein t is an integer.
If indoor unmanned when the new trend passes through first space 1, then oxygen can not be consumed in the new trend, can directly reach second space 2, when consequently the new trend switch of first space 1 closes, can carry out the downshift.
In a further scheme, when the second downshift operation is executed, if the fresh air switch is determined to be the fresh air switch of the corresponding second space 2, the air propulsion device 4 corresponding to the second space 2 is controlled to be closed. That is, when the fresh air switch of the second space 2 is turned off, the air propulsion device 4 corresponding to the second space 2 is turned off, and the control system of the second space 2 is also turned off, so that the human activity detection information and the like are not acquired any more.
In one implementation mode, the human activity detection information further comprises carbon dioxide content information, indoor personnel activity information is judged according to the content of carbon dioxide, the higher the carbon dioxide content is, the more personnel activities are, the lower the carbon dioxide content is, the less personnel activities are, one judgment basis is added, and the control is more accurate and reliable.
In a further scheme, the manned activity condition comprises that carbon dioxide content information of the indoor space is equal to or greater than a first preset threshold value, and/or the light sensing detection information indicates that a person moves within a first preset time period; and/or the unmanned activity condition comprises that the content of carbon dioxide in the indoor space is lower than a preset second preset threshold value, and the light sensing information indicates that the unmanned motion exists within a second preset time period.
The first preset threshold may be 700ppm, and the first preset time period may be 1 minute; the second preset threshold may be 500ppm, the second preset time period may be 60 minutes, and of course, other values may be set according to the size and layout of the space.
When a person just enters the indoor space, the carbon dioxide content does not rise to a set threshold value, if the carbon dioxide content is a single judgment index, the fresh air system cannot supply air in time, and the fresh air system can be started and supplies air after the carbon dioxide content rises for a period of time;
when having a rest at noon break or night, personnel can not move, and single light sense detection information then can not feed back there is personnel activity signal, but indoor carbon dioxide content can rise, reaches and sets for the threshold value after, also can feed back someone activity signal, also can open new trend system and air supply, consequently, this new trend system is applicable in more scenes, and is more reliable.
In conclusion, the activity condition of the personnel can be judged more accurately by combining and judging the carbon dioxide information and the personnel movement information, more sensitive upshifting or downshifting operation can be carried out, air is supplied in time, the air quality is guaranteed, or the air is closed in time, and the energy consumption is saved.
In one embodiment, if the carbon dioxide content information of the indoor space exceeds a third preset threshold, an alarm operation is started, the air treatment device 3 is controlled to be started to the maximum air volume, and the gear of the air propulsion device 4 corresponding to the indoor space is controlled to be adjusted to a high gear. Through alarm system, respond to the sudden rising of carbon dioxide, the fast reaction sends into new trend, reduces carbon dioxide content the fastest, further improves the stability of indoor air.
The third preset threshold value can be 1000ppm, and the fresh air system is not restored to the state before alarming until the carbon dioxide content is reduced to 500ppm by alarming operation.
The invention also discloses a fresh air control device, which comprises: a first control unit that controls the air processing apparatus 3 to perform an upshift or a downshift; an acquisition unit for acquiring status information of an indoor door and human activity detection information; and the second control unit is used for controlling the air propulsion equipment 4 corresponding to the second space 2 to be opened if the fresh air switch of the second space 2 is determined to be opened and the state information of the indoor door corresponding to the second space 2 indicates that the indoor door is in a closed state, and the human activity detection information at least comprises light detection information.
The first control unit may be configured to perform a first upshift operation including controlling the air handling equipment 3 to upshift if the human activity detection information satisfies the human activity condition, and perform a first downshift operation including controlling the air handling equipment 3 to downshift if the human activity detection information satisfies the human activity condition; and may be arranged to perform a second upshift operation in response to the fresh air switches when one of the fresh air switches is turned on, the second upshift operation comprising controlling the air handling equipment 3 to upshift, and/or to perform a second downshift operation in response to the fresh air switches when one of the fresh air switches is turned off, the second downshift operation comprising controlling the air handling equipment 3 to downshift.
As shown in fig. 3, the present invention also discloses a fresh air control system for controlling a fresh air system of a building having an indoor space, the indoor space having a first space 1 and at least one second space 2, the building having at least one indoor door, each indoor door for entering and exiting the corresponding second space 2, the system comprising: the fresh air switch is communicated with the controller; each sensing assembly comprises a sensor for acquiring state information and human activity detection information of an indoor door corresponding to the corresponding second space 2, and the human activity detection information at least comprises light detection information; the controller is used for executing the method.
Each inductive component at least comprises: the first sensing unit is used for acquiring the state information of the indoor doors of the second spaces 2; and the second sensing unit is used for acquiring corresponding optical detection information of the indoor space.
The first sensing units comprise at least one of a magnetic control sensor and a photoelectric switch and can be correspondingly arranged on the indoor door, and each first sensing unit is used for detecting the state information of the indoor door of the corresponding second space 2; the second sensing unit includes a motion sensor including at least one of an infrared radiation sensor, a sonic pulse sensor, etc. for detecting whether a person is moving in the room.
The first sensing unit is arranged at the bottom of the opening side edges of the door and the door frame, and the opening state of the indoor door is judged by sensing whether the door edge and the door frame are overlapped or not through the sensor; the second sensing unit can be arranged in the fresh air switch.
The at least one sensing assembly includes at least: the third sensing unit is used for collecting carbon dioxide content information of the indoor space and can adopt a carbon dioxide sensor; the third sensing unit can be arranged in the fresh air switch.
The at least one induction assembly forms a detection module of the fresh air control system.
Besides, the fresh air control system further comprises at least one of a clock module, a wireless communication module, a control module and a storage module, and functions of automatic switching, air quantity control, automatic adjustment and the like can be realized, so that the whole system is more intelligent and more accurate in control and more energy-saving.
In a specific scheme, the clock module is used for determining system time and time interval for checking the system, judging the state of the air propulsion device 4 and sending at least one of an indoor unmanned signal or a manned signal;
the detection module is used for detecting at least one of indoor carbon dioxide content, indoor presence or absence or an indoor door opening and closing state;
the wireless communication module is used for sending the data of the detection module to the control module and sending the control data of the control module to the air treatment equipment 3 or the air propulsion equipment 4; the wireless communication module can adopt Zigbee, wifi, NB-loT, IP and the like, and performs information transmission through wireless communication, so that the volume of the system can be further reduced, and the installation difficulty can be reduced;
the control module is used for receiving data or sending control data through the wireless communication module, and can adopt a singlechip and the like;
the storage module is used for storing the data of the system.
As shown in fig. 4, the present invention also discloses a fresh air system for a building having an indoor space, the indoor space having a first space 1 and at least one second space 2, the building having at least one indoor door, each indoor door for accessing a corresponding second space 2, the fresh air system comprising: an air treatment device 3 for feeding purified air into the first space 1, at least one air propulsion device 4, each air propulsion device 4 being adapted to propel purified air from the first space 1 to a respective second space 2; and at least one air discharge device for discharging air of the corresponding second space 2 to the outside.
Air is conveyed between the first space 1 and the second space 2 through the air propelling device 4, fresh air is conveyed to each room, air pipes do not need to be installed, the height of a suspended ceiling does not need to be increased for installing the air pipes, and the construction difficulty is reduced; meanwhile, the whole system does not need to be provided with an air pipe, so that the volume is smaller, and the occupied indoor space is less; in the decoration process, if the position of the partition wall needs to be changed and the air propulsion device 4 can be arranged on the partition wall, namely the air propulsion device can follow the changed position, if an air pipe structure is adopted, the air pipe needs to be laid again, so that the decoration cost can be reduced by adopting the pipeline-free structure; in addition, the adoption of the non-pipeline structure can avoid generating condensed water, is not easy to breed mould and improves the indoor air quality.
The air discharge device is a one-way valve 5, the one-way valve 5 may also be called a check valve or a check valve, the one-way valve 5 is disposed on at least one outer sidewall of the second space 2, and the one-way valve 5 is used for discharging air in the second space 2 to the outside of the room and preventing outdoor air from entering the second space 2. Compared with the existing centralized non-pipeline fresh air system which adopts a structure for controlling the air intake of a room by exhausting air, the invention adopts the pressure difference between the inside and the outside of the room and exhausts the indoor air through the one-way valve 5, so that the local negative pressure can not be formed, and the outdoor air is prevented from permeating into the room.
In order to make the fresh air sufficiently circulate in the room, the check valve 5 and the air propulsion device 4 may be disposed at two positions as far as possible, for example, at two diagonal positions in the room.
The direction of the arrows in fig. 1, 2 show the direction of air flow.
The air treatment device 3 comprises a filter module comprising at least one of a primary filter, an electrostatic precipitator, a PM2.5 filter and an activated carbon filter for purifying air, and/or the air propulsion device 4 comprises a positive pressure fan for feeding fresh air from the first space 1 into the second space 2.
In addition, the air processing device 3 may further include a conditioning module, which is connected to the fresh air control system, and includes at least one of a temperature conditioning module, a humidity conditioning module, and an air volume conditioning module.
The air fed in can be purified through the filtering module, the air quality is improved, the temperature, the humidity and the air quantity of the air can be adjusted through the adjusting module, the adjustment is carried out according to different seasons, different numbers of people and different requirements, and the intelligence degree of the system is further improved;
the temperature adjusting module is used for heating or cooling air, the humidity adjusting module is used for dehumidifying or humidifying air, and the air quantity adjusting module is used for adjusting air quantity and can adopt voltage-adjusting speed regulators such as silicon controlled electronic voltage-adjusting speed regulators and variable-frequency speed regulators.
The air quantity of the fresh air system is selected according to the air supply quantity, wherein the air supply quantity A is S multiplied by 3.5m3And h, wherein S is the indoor area, the residual pressure outside the fan is 50Pa, and the air supply quantity is controlled by an indoor environment control system.
The at least one air propulsion device 4 has a second filter unit for removing air odors, the second filter unit comprising at least one of a PM2.5 filter, a carbon filter, further evolving air.
The invention also discloses a building, which is provided with an indoor space and a fresh air system matched with the indoor space, wherein the indoor space is provided with a first space 1 and at least one second space 2, the building is provided with at least one indoor door, each indoor door is used for entering and exiting the corresponding second space 2, and the fresh air system is the fresh air system.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of description and are not intended to limit the scope of the invention. Other variations or modifications will occur to those skilled in the art based on the foregoing disclosure and are within the scope of the invention.
Claims (10)
1. A fresh air control method, characterized by a fresh air system for controlling a building, the building having an indoor space with at least one first space (1) and at least one second space (2), the fresh air system comprising at least: -at least one air treatment device (3) for feeding purified air into said first space (1), and-at least one air propulsion device (4), each air propulsion device (4) being adapted to propel purified air of said first space (1) to a respective said second space (2), the method comprising:
acquiring human activity detection information of the indoor space, wherein the human activity detection information at least comprises light sensation detection information representing personnel motion conditions;
-performing a first up-shift operation when the human activity detection information fulfils a human activity condition, the first up-shift operation comprising controlling the air handling equipment (3) to up-shift, -performing a first down-shift operation when the human activity detection information fulfils a no human activity condition, the first down-shift operation comprising controlling the air handling equipment (3) to down-shift.
2. The method according to claim 1, characterized in that each of the first (1) or second (2) spaces is provided with a fresh air switch for controlling the fresh air system to be turned on or off;
the method further comprises the following steps: when one of the fresh air switches is turned on, executing a second upshift operation in response to the fresh air switch, the second upshift operation including controlling the air handling equipment (3) to upshift, and/or
When one of the fresh air switches is closed, a second downshift operation in response to the fresh air switch is performed, the second downshift operation including controlling the air handling equipment (3) to downshift.
3. Method according to claim 1, characterized in that the first upshift operation is a gear shift of the air treatment device (3) from the b-th gear to the a-th gear, a-b-c, a, b, c being integers and a being greater than b, c being the total number of the first spaces (1) or the second spaces (2) that change from meeting the no-human activity condition to meeting the human activity condition; and/or
The first downshift operation is a shift of the air handling equipment (3) from a d-th gear to an e-th gear, d-e is f, d, e, f are integers, and d is greater than e, f is the total number of the first spaces (1) or the second spaces (2) that change from satisfying the manned activity condition to satisfying the unmanned activity condition.
4. The method of claim 3,
when controlling the air handling device (3) to perform the first downshift operation during a daytime period, the air handling device (3) supplies air in an amount greater than or equal to 0 during the daytime period; and/or
E is an integer greater than d/2, and/or when controlling the air handling device (3) to perform the first downshift operation during the night period
When the air handling device (3) is controlled to perform the first downshift operation first and then the first upshift operation in the nighttime period, the gear before the downshift is d1, and the gear after the upshift is a1, then a1 is less than or equal to d 1.
5. The method according to claim 1, wherein the building has at least one indoor door, each for accessing a respective said second space (2), the method further comprising:
when a fresh air switch of the second space (2) is turned on, state information of the second space (2) corresponding to the indoor door is acquired;
if the indoor door is in an open state, controlling the air propulsion equipment (4) corresponding to the second space (2) to be closed;
and if the indoor door is in a closed state, controlling the air propulsion equipment (4) corresponding to the second space (2) to be opened.
6. The method according to claim 2, wherein the second upshift operation is: if the fresh air switch of the first space (1) is turned on and the number of the turned-on fresh air switches is n, the air processing equipment (3) is raised by n steps, wherein n is an integer; if the fresh air switches of the second space (2) are turned on and the number of the turned-on fresh air switches is k, the initial gear of the air processing equipment (3) is set to be k +1 gear or k gear is increased on the basis of the turned-on gear, wherein k is an integer;
and/or the second downshift operation is: if the fresh air switch of the first space (1) or the second space (2) is closed and the closed quantity of the fresh air switch is t, the air treatment equipment (3) reduces the t gear, and t is an integer.
7. The method of claim 1, further comprising:
and if the carbon dioxide content information of the indoor space exceeds a third preset threshold value, starting an alarm operation, controlling the air treatment equipment (3) to be started to the maximum air volume, and controlling the gear of the air propulsion equipment (4) corresponding to the indoor space to be adjusted to a high gear.
8. Fresh air control system, characterized by a fresh air system for controlling a building having an interior space with a first space (1) and at least one second space (2), said building having at least one interior door, each said interior door being adapted to access a respective said second space (2), said system comprising:
a controller, and at least one fresh air switch and at least one induction component in communication with the controller;
each sensing assembly comprises a sensor for acquiring state information of a corresponding indoor door of the corresponding second space (2) and the human activity detection information, wherein the human activity detection information at least comprises light detection information;
the controller is configured to perform the method of any one of claims 1-7.
9. Fresh air system, characterized in that, for a building having an indoor space with a first space (1) and at least one second space (2), said building having at least one indoor door, each for accessing a respective said second space (2), said fresh air system comprises:
an air treatment device (3) for feeding purified air into the first space (1),
-at least one air propulsion device (4), each air propulsion device (4) being intended to propel cleaned air of the first space (1) to the respective second space (2);
and at least one air discharge device for discharging air corresponding to the second space (2) to the outside.
10. A building, characterized in that it has an indoor space having a first space (1) and at least one second space (2), and a fresh air system associated with said indoor space, said building having at least one indoor door, each of said indoor doors being adapted to provide access to a respective said second space (2), said fresh air system being the fresh air system of claim 9.
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