CN112923441A - Fresh air conditioning system and control method thereof at night in summer - Google Patents
Fresh air conditioning system and control method thereof at night in summer Download PDFInfo
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- CN112923441A CN112923441A CN202110152188.1A CN202110152188A CN112923441A CN 112923441 A CN112923441 A CN 112923441A CN 202110152188 A CN202110152188 A CN 202110152188A CN 112923441 A CN112923441 A CN 112923441A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000009423 ventilation Methods 0.000 claims abstract description 95
- 229910002092 carbon dioxide Inorganic materials 0.000 description 16
- 238000007791 dehumidification Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003860 sleep quality Effects 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
- 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
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the 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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F2110/10—Temperature
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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
- F24F2110/20—Humidity
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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
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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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- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioners, and particularly provides a fresh air conditioning system and a control method thereof at night in summer, aiming at providing a comfortable environment suitable for sleeping for a user. It includes: when the indoor environment temperature reaches the indoor target temperature, comparing the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value; comparing a magnitude relationship between the indoor air humidity and an indoor air humidity threshold; according to the comparison result of the indoor air quality parameter and the indoor air humidity, the internal circulation ventilation mode or the external circulation ventilation mode is selectively started, the humidifying device or the dehumidifying device is started, the indoor air quality parameter is adjusted until the indoor air quality parameter is smaller than or equal to the qualified threshold of the indoor air quality parameter, and the indoor air humidity reaches the indoor air humidity threshold, so that a comfortable indoor environment with the temperature, the air quality and the humidity suitable for sleeping is created for a user, and the purpose of improving the user experience is achieved.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a fresh air conditioning system and a control method thereof in summer at night.
Background
With the increasing living standard of people, the requirements for the quality and comfort of living environment are also increasing, for example, users want the temperature, humidity and air quality of indoor living environment to be within a more comfortable range. For this reason, in addition to air conditioners for temperature regulation, fresh air systems are also becoming common household appliances.
The air conditioner and the fresh air system can be independently installed, and users can respectively control the air conditioner and the fresh air system according to the actual needs of the users to adjust the temperature and the air quality of the indoor environment. The air conditioning and fresh air system may also be integrated into a single integrated system.
Taking summer night as an example, a user can set a target temperature before a rest under normal conditions, and the air conditioner can adjust the indoor environment temperature according to the target temperature of the user to keep the indoor environment temperature consistent with the target temperature all the time. However, the humidity and air quality in the room will change, which will affect the sleep quality of the user.
In view of this, how to provide a comfortable environment suitable for sleeping for the user at night in summer is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In order to provide a comfortable environment suitable for sleeping for users at night in summer, the invention provides a control method of a fresh air conditioning system at night in summer.
The fresh air conditioning system comprises a humidifying device and a dehumidifying device, and the control method of the fresh air conditioning system at night in summer comprises the following steps: when the indoor environment temperature reaches the indoor target temperature, comparing the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value; comparing a magnitude relationship between the indoor air humidity and an indoor air humidity threshold; according to the comparison result of the indoor air quality parameter and the indoor air humidity, selectively starting an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and starting the dehumidifying device or the humidifying device, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified threshold and the indoor air humidity until the indoor air humidity reaches the indoor air humidity threshold.
In a preferred embodiment of the above control method of the present invention, "selectively turn on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turn on the dehumidifying device or the humidifying device according to a comparison result between the indoor air quality parameter and the indoor air humidity, and adjust the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified threshold and the indoor air humidity until the indoor air humidity reaches the indoor air humidity threshold" includes the following steps: and when the indoor air quality parameter is less than or equal to the qualified threshold of the indoor air quality parameter and the indoor air humidity is greater than the threshold of the indoor air humidity, starting the internal circulation ventilation mode and the dehumidifying device, keeping the external circulation ventilation mode and the humidifying device closed, and then returning and comparing the magnitude relation between the indoor air quality parameter and the qualified threshold of the indoor air quality parameter and the magnitude relation between the indoor air humidity and the threshold of the indoor air humidity.
In a preferred embodiment of the above control method of the present invention, "selectively turn on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turn on the dehumidifying device or the humidifying device according to a comparison result between the indoor air quality parameter and the indoor air humidity, and adjust the indoor air quality parameter until the indoor air quality parameter is less than or equal to the qualified threshold of the indoor air quality parameter and the indoor air humidity until the indoor air humidity threshold is reached" includes the following steps: when the indoor air quality parameter is smaller than or equal to the indoor air quality parameter qualified threshold value and the indoor air humidity is smaller than the indoor air humidity threshold value, the internal circulation ventilation mode and the humidifying device are started, the external circulation ventilation mode and the dehumidifying device are kept closed, and then the comparison of the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value and the magnitude relation between the indoor air humidity and the indoor air humidity threshold value are returned.
In a preferred embodiment of the above control method of the present invention, "selectively turn on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turn on the dehumidifying device or the humidifying device according to a comparison result between the indoor air quality parameter and the indoor air humidity, and adjust the indoor air quality parameter until the indoor air quality parameter is less than or equal to the qualified threshold of the indoor air quality parameter and the indoor air humidity until the indoor air humidity threshold is reached" includes the following steps: when the indoor air quality parameter is larger than the indoor air quality parameter qualified threshold value and the indoor air humidity is larger than the indoor air humidity threshold value, the external circulation ventilation mode and the dehumidifying device are started and the internal circulation ventilation mode and the humidifying device are maintained, and then the comparison of the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value and the magnitude relation between the indoor air humidity and the indoor air humidity threshold value are returned.
In a preferred embodiment of the above control method of the present invention, "selectively turn on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turn on the dehumidifying device or the humidifying device according to a comparison result between the indoor air quality parameter and the indoor air humidity, and adjust the indoor air quality parameter until reaching the indoor air quality parameter qualified threshold and the indoor air humidity until reaching the indoor air humidity threshold" includes the following steps: when the indoor air quality parameter is larger than the indoor air quality parameter qualified threshold value and the indoor air humidity is smaller than the indoor air humidity threshold value, the outer circulation ventilation mode and the humidifying device are started, the inner circulation ventilation mode and the dehumidifying device are kept closed, and then the comparison of the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value and the magnitude relation between the indoor air humidity and the indoor air humidity threshold value are returned.
In a preferable aspect of the above control method of the present invention, the control method further includes: when the indoor air quality parameter is smaller than or equal to the indoor air quality parameter qualified threshold value and the indoor air humidity is equal to the indoor air humidity threshold value, keeping the internal circulation ventilation mode, the external circulation ventilation mode, the humidifying device and the dehumidifying device closed, and then returning and comparing the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value and between the indoor air humidity and the indoor air humidity threshold value.
In a preferred embodiment of the control method of the present invention, before the control method returns to compare the indoor air quality parameter and the qualified threshold value of the indoor air quality parameter, and the magnitude relationship between the indoor air humidity and the threshold value of the indoor air humidity, the control method first keeps the fresh air conditioning system operating in the current state for a preset duration.
In a preferred embodiment of the control method of the present invention, the qualified threshold of the indoor air quality parameter includes a qualified maximum threshold of the indoor air quality parameter and a qualified minimum threshold of the indoor air quality parameter, and the qualified maximum threshold of the indoor air quality parameter is greater than the qualified minimum threshold of the indoor air quality; "selectively turning on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turning on the dehumidifying device or the humidifying device according to the comparison result of the indoor air quality parameter and the indoor air humidity, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified threshold and the indoor air humidity until the indoor air humidity reaches the indoor air humidity threshold" comprises the following steps: according to the comparison result of the indoor air quality parameter and the indoor air humidity, selectively starting an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and starting the dehumidifying device or the humidifying device, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified minimum threshold and the indoor air humidity until the indoor air humidity reaches the indoor air humidity threshold.
In a preferable embodiment of the above control method of the present invention, the indoor air humidity threshold includes an indoor air humidity maximum threshold and an indoor air humidity minimum threshold, and the indoor air humidity maximum threshold is greater than the indoor air humidity minimum threshold; "selectively turning on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turning on the dehumidifying device or the humidifying device according to the comparison result of the indoor air quality parameter and the indoor air humidity, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified threshold and the indoor air humidity until the indoor air humidity reaches the indoor air humidity threshold" comprises the following steps: according to the comparison result of the indoor air quality parameter and the indoor air humidity, selectively starting an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and starting the dehumidifying device or the humidifying device, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified threshold value and the indoor air humidity until the indoor air humidity is less than or equal to the indoor air humidity maximum threshold value and greater than or equal to the indoor air humidity minimum threshold value.
The invention discloses a control method of a fresh air conditioning system at night in summer, which mainly comprises the following steps: when the indoor environment temperature reaches the indoor target temperature, comparing the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value; comparing a magnitude relationship between the indoor air humidity and an indoor air humidity threshold; and selectively starting an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and starting a humidifying device or a dehumidifying device according to the comparison result of the indoor air quality parameter and the indoor air humidity, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the qualified threshold of the indoor air quality parameter and the indoor air humidity reaches the indoor air humidity threshold.
It is conceivable that the control method of the present invention selects different ventilation modes of the fresh air conditioning system according to the comparison results between the indoor air quality parameter and the indoor air humidity and the respective threshold values, and then adjusts the indoor air quality parameter and the indoor air humidity in real time until the respective threshold values are reached, thereby creating a comfortable indoor environment with a temperature, an air quality and a humidity suitable for sleeping for the user, and achieving the purpose of improving the user experience.
On the other hand, the invention also provides a fresh air conditioning system which comprises a controller, wherein the controller is used for executing the control method of the fresh air conditioning system at night in summer.
It should be noted that the fresh air conditioning system of the present invention has all the technical effects of the above control method, and those skilled in the art can clearly understand the above description, so that the description is omitted here.
Drawings
FIG. 1 is a flow chart of the main steps of the control method of the fresh air conditioning system in the summer at night;
fig. 2 is a detailed flowchart of the steps of the control method of the fresh air conditioning system in the night of summer.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that the fresh air conditioning system of the present invention may be an air conditioning system and a fresh air system separately installed independently, or may be an integrated fresh air conditioning system, that is, the fresh air conditioning system provided in the present invention can adjust the indoor temperature, and can also adjust the indoor humidity and air quality parameters, so as to make the indoor environment reach the best state meeting the actual needs of the user.
Generally, a fresh air conditioning system has at least a cooling mode, an internal circulation ventilation mode, and an external circulation ventilation mode.
As the name suggests, the refrigeration mode refers to that the fresh air conditioning system sucks indoor high-temperature air into the system from a return air inlet, cools the air into low-temperature air and then sends the low-temperature air into the room from an air supply outlet, and the indoor environment temperature finally reaches the indoor target temperature set by a user through circulation.
The internal circulation ventilation mode is that indoor air is sucked into the system from an air return port of the fresh air conditioning system, filtered into clean air in the system, and finally the clean air is sent back to the room from an air supply port to complete the internal circulation ventilation of the indoor air.
The external circulation ventilation mode is characterized in that outdoor clean air is sucked into the system from an air inlet of the fresh air conditioning system and then is sent into the room through an air supply outlet, meanwhile, indoor dirty air is sucked into the system from an air return inlet and then is exhausted to the outside from an air outlet, and external circulation ventilation between the outdoor clean air and the indoor dirty air is completed.
The fresh air conditioning system also comprises a dehumidifying device and a humidifying device, wherein the dehumidifying device and the humidifying device are arranged in the fresh air conditioning system so as to dehumidify or humidify the air sent into a room in an inner circulation ventilation mode and an outer circulation mode.
The present invention also provides a control method, which is executed by the controller of the fresh air conditioning system, and is suitable for controlling the working mode or state of the fresh air conditioning system at night in summer, and aims to solve the technical problems that the existing control method of the fresh air conditioning system is single, can only automatically adjust the indoor environment temperature at night in summer, and cannot provide a comfortable indoor environment suitable for sleeping for users.
Therefore, the control method provided by the invention has the advantages that the indoor air quality parameter reaches the indoor air quality parameter qualified threshold value and the indoor air humidity reaches the indoor air humidity threshold value by adjusting the indoor air quality parameter and the indoor air humidity in real time, so that a comfortable indoor environment suitable for sleeping is provided for a user, the user experience is improved, and the market competitiveness of the fresh air conditioning system is finally improved.
Referring to fig. 1, the method for controlling a fresh air conditioning system at night in summer of the invention comprises the following main steps:
s1, when the indoor environment temperature reaches the indoor target temperature, comparing the indoor air quality parameter A with the indoor air quality parameter qualified threshold AsetThe magnitude relationship between them;
s2, comparing the indoor air humidity H with the indoor air humidity threshold HsetThe magnitude relationship between them;
s3, according to the comparison result of the indoor air quality parameter A and the indoor air humidity H, selectively starting the internal circulation ventilation mode or the external circulation ventilation mode of the fresh air conditioning system and starting the humidifying device or the dehumidifying deviceAdjusting the indoor air quality parameter A until the indoor air quality parameter A is less than or equal to the qualified threshold A of the indoor air quality parametersetThe indoor air humidity H is reached until the indoor air humidity threshold value H is reachedset。
It is conceivable that the control method of the present invention selects different ventilation modes of the fresh air conditioning system according to the comparison results between the indoor air quality parameter and the indoor air humidity and the respective threshold values, and then adjusts the indoor air quality parameter and the indoor air humidity in real time until the respective threshold values are reached, thereby creating a comfortable indoor environment with a temperature, an air quality and a humidity suitable for sleeping for the user, and achieving the purpose of improving the user experience.
In order to better understand the control method of the present invention, the control method of the present invention is described in detail below with reference to fig. 2 by taking a specific embodiment as an example, and fig. 2 is a detailed step flowchart of the control method of the fresh air conditioning system of the present invention at night in summer.
In addition, for the sake of brevity and clarity, different english letters are used hereinafter and in fig. 2 of the drawings of the specification to respectively refer to the indoor air quality parameter, the indoor air quality passing threshold, the indoor air humidity and the indoor air humidity threshold. In particular, the English letter A denotes an indoor air quality parameter, AsetDenotes the qualified threshold of the indoor air quality parameter, H denotes the indoor air humidity, HsetRefers to an indoor air humidity threshold. It should be understood that these letters do not have any limiting effect on the scope of the present invention.
Referring to fig. 2, in the present embodiment, a method for controlling a fresh air control system at night in summer includes the following steps:
s1, when the indoor environment temperature reaches the indoor target temperature, comparing the indoor air quality parameter A with the indoor air quality parameter qualified threshold AsetThe magnitude relationship between them.
Wherein, the indoor ambient temperature is usually gathered by the temperature sensor who installs in fresh air conditioning system's air supply vent department, this temperature sensor of course also can be with fresh air conditioning system independent setting, it is installed at indoor certain region, this temperature sensor's quantity can be one or more, and this temperature sensor and fresh air conditioning system's controller communication connection, so that the controller acquires the indoor ambient temperature that temperature sensor gathered in real time and compare with indoor target temperature, adjust the wind speed of fresh air conditioning system's fan or the flow of refrigerant according to the comparison result, finally make indoor ambient temperature reach indoor target temperature. The indoor target temperature may be a temperature manually set by the user according to the habit or the preference of the user, or may be a temperature automatically set by the controller according to the daily use habit of the user.
The indoor air quality parameter at least comprises (carbon dioxide) CO2One of a concentration and a PM2.5 concentration.
Wherein, CO2Concentration of CO2Collected by a concentration detector, the CO2The concentration detector can be arranged in a certain indoor area and is in communication connection with a controller of the fresh air conditioning system, so that the controller can obtain CO in real time2Indoor CO collected by concentration detector2Concentration and indoor CO preset in the system2And comparing the qualified concentration threshold. Wherein, indoor CO2The qualified threshold value of the concentration can be manually set by a user according to the actual requirement of the user, or can be set before the factory according to the numerical range which is specified by the national standard and is suitable for the human health.
Preferably, in this embodiment, indoor CO2Acceptable threshold concentration values include indoor CO2Maximum threshold for qualified concentration and indoor CO2A concentration qualified minimum threshold. When indoor CO2Concentration of CO higher than that in room2When the concentration is qualified and the maximum threshold value is reached, the indoor CO is indicated2The concentration does not reach the standard; when indoor CO2Concentration of less than or equal to CO2When the concentration is qualified and the minimum threshold value is reached, the indoor CO is indicated2The concentration reaches the standard.
More preferably, in the present embodiment, CO2Maximum threshold value for qualified concentration of 1200ppm, CO2Minimum acceptable threshold for concentration 700ppm, of course CO2Specific numerical value user of maximum threshold value and minimum threshold value of qualified concentrationCan be adjusted according to actual conditions.
The PM2.5 concentration is collected by a PM2.5 concentration detector, the PM2.5 concentration detector is installed in a certain indoor area and is in communication connection with a controller of the fresh air conditioning system, so that the controller can acquire the indoor PM2.5 concentration collected by the PM2.5 concentration detector in real time and compare the indoor PM2.5 concentration with an indoor PM2.5 concentration qualified threshold preset by the system. The qualified threshold value of the indoor PM2.5 concentration can be manually set by a user according to the actual requirement of the user, or can be set before leaving a factory according to a numerical range which is specified by the national standard and is suitable for human health.
Preferably, in this embodiment, the indoor PM2.5 concentration qualified threshold includes an indoor PM2.5 concentration qualified maximum threshold and an indoor PM2.5 concentration qualified minimum threshold. When the concentration of the indoor PM2.5 is greater than the qualified maximum threshold value of the concentration of the indoor PM2.5, the concentration of the indoor PM2.5 does not reach the standard; when the indoor PM2.5 concentration is smaller than or equal to the qualified minimum threshold of the PM2.5 concentration, the indoor PM2.5 concentration reaches the standard.
More preferably, in the present embodiment, the qualified maximum PM2.5 concentration threshold is 150ug/m3And the minimum qualified PM2.5 concentration threshold value is 50ug/m3Of course, the specific numerical values of the maximum qualified threshold and the minimum qualified threshold of the PM2.5 concentration can be adjusted by the user according to actual conditions.
It should be noted that the indoor air quality parameter may include other than CO2Other parameters outside of concentration and PM2.5 concentration that may characterize indoor air quality, such as: formaldehyde content and CO concentration, etc.
That is, in the present embodiment, the indoor air quality parameter acceptable threshold includes an indoor air quality parameter acceptable maximum threshold and an indoor air quality parameter acceptable minimum threshold, and the indoor air quality parameter acceptable maximum threshold is greater than the indoor air quality parameter acceptable minimum threshold. When the indoor air quality parameter is smaller than or equal to the minimum qualified threshold value of the indoor air quality, the indoor air quality parameter is judged to be up to the standard, and when the indoor air quality parameter is larger than the maximum qualified threshold value of the indoor air quality parameter, the indoor air quality parameter is not judged to be up to the standard, and the indoor air quality parameter needs to be adjusted to be smaller than or equal to the minimum qualified threshold value of the indoor air quality.
S2, comparing the indoor air humidity H with the indoor air humidity threshold HsetThe magnitude relationship between them.
Wherein, indoor air humidity H is gathered by the air humidity monitor, and this air humidity monitor is installed indoor and its controller communication connection with new trend air conditioning system to the controller gathers indoor air humidity H in real time and with indoor air humidity threshold value HsetA comparison is made. Similarly, the air humidity threshold HsetThe controller can be manually set by a user according to the actual requirements of the user, or can be automatically set by the controller according to the daily use habits of the user.
In the present embodiment, when the indoor ambient temperature reaches the indoor target temperature, the indoor air quality parameter a and the indoor air quality parameter acceptability threshold a are compared in step S1setAnd comparing the indoor air humidity H with the indoor air humidity threshold H in step S2setThe magnitude relation between the two can be executed according to the time sequence or simultaneously.
That is, the control method may compare the indoor air quality parameter a with the indoor air quality parameter qualified threshold asetThen comparing the indoor air humidity H with the indoor air humidity threshold value HsetThe magnitude relationship between them.
The control method may also compare the indoor air humidity H with the indoor air humidity threshold HsetThe indoor air quality parameter A and the indoor air quality parameter qualified threshold value A are comparedsetThe magnitude relationship of (1).
The control method can also simultaneously compare the indoor air quality parameter A with the indoor air quality parameter qualified threshold AsetIndoor air humidity H and indoor air humidity threshold HsetThe magnitude relationship between them.
S3, according to the comparison result of the indoor air quality parameter A and the indoor air humidity H, selectively starting the internal circulation ventilation mode or the external circulation ventilation mode of the fresh air conditioning system, and starting the humidifying device or the dehumidifying device,regulating the indoor air quality parameter A until the indoor air quality parameter A is less than or equal to the qualified threshold A of the indoor air quality parametersetIndoor air humidity H until it reaches an indoor air humidity threshold Hset。
With continued reference to fig. 2, according to the comparison results in steps S1 and S2, step S3 specifically includes the following steps:
when A is less than or equal to AsetAnd H>HsetThen, step S30 is executed, i.e., the internal circulation ventilation system and the dehumidifying device of the fresh air conditioning system are turned on and the external circulation ventilation mode of the fresh air conditioning system and the humidifying device are kept off, and then the process returns to step S1.
In more detail, when CO is in the room2Concentration of CO less than or equal to indoor2The minimum qualified threshold of the concentration is 700ppm, and/or the concentration of indoor PM2.5 is less than or equal to the minimum qualified threshold of the concentration of indoor PM2.5 by 50ug/m3And the indoor air humidity H is greater than the maximum threshold value H of the indoor air humiditysmax(51.5%) is performed step S30.
As described above, based on the relation between the execution sequence of steps S1 and S2, after the control method executes step S30 on the premise that the indoor ambient temperature reaches the indoor target temperature, in addition to directly returning to step S1 in the present embodiment, the control method may compare the indoor air humidity H with the indoor air humidity threshold H to compare the indoor air humidity H with the indoor air humidity HsetThe indoor air quality parameter A and the indoor air quality parameter qualified threshold value A are comparedsetThe magnitude relationship between them. The control method can also simultaneously compare the indoor air quality parameter A with the indoor air quality parameter qualified threshold AsetIndoor air humidity H and indoor air humidity threshold HsetThe magnitude relationship between them.
When step S30 is executed, the indoor air is sucked into the internal circulation ventilation channel from the return air inlet by the fresh air conditioning system, the indoor air is dehumidified by the dehumidifying device in the internal circulation ventilation channel to become dry air, and the dry air is finally sent into the indoor environment from the supply air outlet to reduce the indoor air humidity H until the indoor air humidity H reaches the indoor air humidity threshold Hset。
When A is less than or equal to AsetAnd H<HsetThen, step S31 is executed, i.e., the internal circulation ventilation system and the humidification device of the fresh air conditioning system are turned on and the external circulation ventilation mode of the fresh air conditioning system and the dehumidification device are kept off, and then the process returns to step S1.
In more detail, when CO is in the room2Concentration of CO less than or equal to indoor2The minimum qualified threshold of the concentration is 700ppm, and/or the concentration of indoor PM2.5 is less than or equal to the minimum qualified threshold of the concentration of indoor PM2.5 by 50ug/m3And the indoor air humidity H is less than the minimum threshold value H of the indoor air humiditysmin(48.5%) is performed step S31.
Wherein the minimum threshold value H of the indoor air humiditysminLess than the maximum threshold H for the humidity of the indoor airsmaxThe difference between the two is preferably 3%, which aims to make the indoor air humidity threshold value within a numerical range so as to prevent the dehumidification device and the humidification device from being started and stopped frequently. In addition, the value range is set according to the condition that the value range does not have obvious influence on the human body feeling humidity.
In addition, when the indoor air humidity is greater than or equal to the minimum threshold value of the indoor air humidity and less than or equal to the maximum threshold value of the indoor air humidity, the indoor air humidity reaches the standard; when the indoor air humidity is smaller than the minimum threshold value of the indoor air humidity or larger than the maximum threshold value of the indoor air humidity, the indoor air humidity does not reach the standard, and the indoor air humidity needs to be adjusted to be larger than or equal to the minimum threshold value of the indoor air humidity and smaller than or equal to the maximum threshold value of the indoor air humidity.
After step S31 is executed, the process returns to comparing the indoor air humidity H with the indoor air humidity threshold HsetIndoor air quality parameter A and indoor air quality parameter qualified threshold AsetThe order of the magnitude relation therebetween is the same as the execution completion step S30, and is not described herein again.
When step S31 is executed, the indoor air is sent into the internal circulation ventilation channel from the return air inlet by the fresh air conditioning system, the air is humidified by the humidifying device in the internal circulation ventilation channel to become air with appropriate humidity, and the humidified air is finally sent from the air supply outletEntering the indoor environment to increase the indoor air humidity H until it reaches the indoor air humidity threshold Hset。
When A is>AsetAnd H>HsetThen, step S32 is executed, i.e., the external circulation ventilation system and the dehumidifying device of the fresh air conditioning system are turned on and the internal circulation ventilation mode of the fresh air conditioning system and the humidifying device are kept off, and then the process returns to step S1.
In more detail, when CO is in the room2Concentration of CO higher than that in room2The maximum qualified threshold of the concentration is 1200ppm and/or the concentration of indoor PM2.5 is larger than the maximum qualified threshold of the concentration of indoor PM2.5 by 150ug/m3And the indoor air humidity H is greater than the maximum threshold value H of the indoor air humiditysmax(51.5%) is performed step S32.
After step S32 is executed, the process returns to comparing the indoor air humidity H with the indoor air humidity threshold HsetIndoor air quality parameter A and indoor air quality parameter qualified threshold AsetThe order of the magnitude relationship is the same as that of the execution completion step S30, and the detailed description is omitted here.
When the step S32 is executed, the highly polluted indoor air is sent into the external circulation ventilation channel from the air return opening by the fresh air conditioning system, and then is exhausted to the outdoor environment from the air outlet of the fresh air conditioning system; meanwhile, outdoor low-pollution clean air is sucked into the external circulation ventilation channel by the air inlet of the fresh air conditioning system, and is dehumidified in the external circulation ventilation channel and finally sent into the room from the air supply outlet.
When A is>AsetAnd H<HsetThen, step S33 is executed, namely, the external circulation ventilation system and the humidification device of the fresh air conditioning system are turned on and the internal circulation ventilation mode of the fresh air conditioning system and the dehumidification device are kept turned off, and then the process returns to step S1.
In more detail, when CO is in the room2Concentration of CO higher than that in room2The maximum qualified threshold of the concentration is 1200ppm and/or the concentration of indoor PM2.5 is larger than the maximum qualified threshold of the concentration of indoor PM2.5 by 150ug/m3And the indoor air humidity H is less than the maximum indoor air humidity threshold Hsmin(48.5%) is performed step S33.
After step S33 is executed, the process returns to comparing the indoor air humidity H with the indoor air humidity threshold HsetIndoor air quality parameter A and indoor air quality parameter qualified threshold AsetThe order of the magnitude relationship is the same as that of the execution completion step S30, and the detailed description is omitted here.
When the step S33 is executed, the highly polluted indoor air is sent into the external circulation ventilation channel from the air return opening by the fresh air conditioning system, and then is exhausted to the outdoor environment from the air outlet of the fresh air conditioning system; meanwhile, outdoor low-pollution clean air is sucked into the external circulation ventilation channel by the air inlet of the fresh air conditioning system, is humidified in the external circulation ventilation channel and is finally sent into the room from the air supply outlet.
When A is less than or equal to AsetAnd H ═ HsetThen, step S34 is executed, i.e., the external circulation ventilation mode, the internal circulation ventilation mode, the dehumidifying device, and the humidifying device of the fresh air conditioning system are all turned off, and then the process returns to step S1.
In more detail, when CO is in the room2Concentration of CO less than or equal to indoor2The minimum qualified threshold of the concentration is 700ppm, and/or the concentration of indoor PM2.5 is less than or equal to the minimum qualified threshold of the concentration of indoor PM2.5 by 50ug/m3And the indoor air humidity H is equal to the indoor air humidity threshold Hset(48.5% to 51.5%), step S34 is executed.
After step S34 is executed, the process returns to comparing the indoor air humidity H with the indoor air humidity threshold HsetIndoor air quality parameter A and indoor air quality parameter qualified threshold AsetThe order of the magnitude relationship is the same as that of the execution completion step S30, and the detailed description is omitted here.
As can be seen, the step S3 is performed according to the indoor air quality parameter a and the indoor air quality parameter qualification threshold asetIndoor air humidity H and indoor air humidity threshold HsetThe comparison result of the magnitude relation between the indoor air humidity and the indoor air humidity is compared, four different steps are respectively executed according to five types of situations, the indoor air parameter is adjusted until the indoor air parameter is less than or equal to the qualified threshold value of the indoor air parameter, and the indoor air humidity is adjusted until the indoor air humidity is adjustedThe indoor air humidity threshold is reached (i.e., equal) so that the indoor temperature, humidity and air quality are all in an optimal state for sleep.
Further, with continuing reference to fig. 2, in this embodiment, the control method further includes the following steps:
and S35, keeping the fresh air conditioning system working at the current state for a preset time.
After the control method selectively performs the steps S30, S31, S32, S33 or S34 according to the comparison results of the steps S1 and S2, the control method performs the step S35, i.e., the fresh air conditioning system is maintained to operate in the current state for the preset time period, and then returns to the step S1.
The step S35 is set to control the start-stop frequency of the ventilation mode, the dehumidification device and the humidification device of the fresh air conditioning system, so as to prevent the fresh air conditioning system from being damaged due to the fact that the start-stop frequency of the ventilation mode, the dehumidification device and the humidification device is too high.
Preferably, in step S35 in this embodiment, the fresh air conditioning system is kept operating in the current state for a preset time period, where the preset time period is shortest to 1min (minute), and it can be understood that a specific value of the preset time period in this step may be set by a person or a user in the art according to actual needs.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A control method for a fresh air conditioning system at night in summer is provided, the fresh air conditioning system comprises a humidifying device and a dehumidifying device, and the control method comprises the following steps:
when the indoor environment temperature reaches the indoor target temperature, comparing the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value;
comparing a magnitude relationship between the indoor air humidity and an indoor air humidity threshold;
according to the comparison result of the indoor air quality parameter and the indoor air humidity, selectively starting an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and starting the dehumidifying device or the humidifying device, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified threshold and the indoor air humidity until the indoor air humidity reaches the indoor air humidity threshold.
2. The control method according to claim 1, wherein selectively turning on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turning on the dehumidifying device or the humidifying device according to the comparison result between the indoor air quality parameter and the indoor air humidity, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter passing threshold and the indoor air humidity until the indoor air humidity reaches the indoor air humidity threshold comprises the following steps:
when the indoor air quality parameter is smaller than or equal to the indoor air quality parameter qualified threshold value and the indoor air humidity is larger than the indoor air humidity threshold value, the internal circulation ventilation mode and the dehumidifying device are started, the external circulation ventilation mode and the humidifying device are kept closed, and then the comparison of the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value and the magnitude relation between the indoor air humidity and the indoor air humidity threshold value are returned.
3. The control method according to claim 1, wherein selectively turning on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turning on the dehumidifying device or the humidifying device according to the comparison result between the indoor air quality parameter and the indoor air humidity, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter passing threshold and the indoor air humidity until the indoor air humidity threshold is reached comprises the following steps:
when the indoor air quality parameter is smaller than or equal to the indoor air quality parameter qualified threshold value and the indoor air humidity is smaller than the indoor air humidity threshold value, the internal circulation ventilation mode and the humidifying device are started, the external circulation ventilation mode and the dehumidifying device are kept closed, and then the comparison of the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value and the magnitude relation between the indoor air humidity and the indoor air humidity threshold value are returned.
4. The control method according to claim 1, wherein selectively turning on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turning on the dehumidifying device or the humidifying device according to the comparison result between the indoor air quality parameter and the indoor air humidity, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter passing threshold and the indoor air humidity until the indoor air humidity threshold is reached comprises the following steps:
when the indoor air quality parameter is larger than the indoor air quality parameter qualified threshold value and the indoor air humidity is larger than the indoor air humidity threshold value, the external circulation ventilation mode and the dehumidifying device are started and the internal circulation ventilation mode and the humidifying device are maintained, and then the comparison of the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value and the magnitude relation between the indoor air humidity and the indoor air humidity threshold value are returned.
5. The control method according to claim 1, wherein selectively turning on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turning on the dehumidifying device or the humidifying device according to the comparison result between the indoor air quality parameter and the indoor air humidity, and adjusting the indoor air quality parameter until the indoor air quality parameter qualified threshold value and the indoor air humidity until the indoor air humidity threshold value are reached comprises the following steps:
when the indoor air quality parameter is larger than the indoor air quality parameter qualified threshold value and the indoor air humidity is smaller than the indoor air humidity threshold value, the outer circulation ventilation mode and the humidifying device are started, the inner circulation ventilation mode and the dehumidifying device are kept closed, and then the comparison of the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value and the magnitude relation between the indoor air humidity and the indoor air humidity threshold value are returned.
6. The control method according to claim 1, characterized by further comprising the steps of:
when the indoor air quality parameter is smaller than or equal to the indoor air quality parameter qualified threshold value and the indoor air humidity is equal to the indoor air humidity threshold value, keeping the internal circulation ventilation mode, the external circulation ventilation mode, the humidifying device and the dehumidifying device closed, and then returning and comparing the magnitude relation between the indoor air quality parameter and the indoor air quality parameter qualified threshold value and between the indoor air humidity and the indoor air humidity threshold value.
7. The control method according to any one of claims 2 to 6, wherein the control method keeps the fresh air conditioning system operating in the current state for a preset time period before returning to the comparison of the magnitude relationship between the indoor air quality parameter and the indoor air quality parameter pass threshold, and between the indoor air humidity and the indoor air humidity threshold.
8. The control method according to any one of claims 1 to 6, wherein the indoor air quality parameter passing threshold includes an indoor air quality parameter passing maximum threshold and an indoor air quality parameter passing minimum threshold, the indoor air quality parameter passing maximum threshold being greater than the indoor air quality passing minimum threshold;
"selectively turning on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turning on the dehumidifying device or the humidifying device according to the comparison result of the indoor air quality parameter and the indoor air humidity, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified threshold and the indoor air humidity until the indoor air humidity reaches the indoor air humidity threshold" comprises the following steps:
according to the comparison result of the indoor air quality parameter and the indoor air humidity, selectively starting an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and starting the dehumidifying device or the humidifying device, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified minimum threshold and the indoor air humidity until the indoor air humidity reaches the indoor air humidity threshold.
9. The control method of any one of claims 1 to 6, wherein the indoor air humidity threshold includes an indoor air humidity maximum threshold and an indoor air humidity minimum threshold, the indoor air humidity maximum threshold being greater than the indoor air humidity minimum threshold;
"selectively turning on an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and turning on the dehumidifying device or the humidifying device according to the comparison result of the indoor air quality parameter and the indoor air humidity, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified threshold and the indoor air humidity until the indoor air humidity reaches the indoor air humidity threshold" comprises the following steps:
according to the comparison result of the indoor air quality parameter and the indoor air humidity, selectively starting an internal circulation ventilation mode or an external circulation ventilation mode of the fresh air conditioning system and starting the dehumidifying device or the humidifying device, and adjusting the indoor air quality parameter until the indoor air quality parameter is less than or equal to the indoor air quality parameter qualified threshold value and the indoor air humidity until the indoor air humidity is less than or equal to the indoor air humidity maximum threshold value and greater than or equal to the indoor air humidity minimum threshold value.
10. A fresh air conditioning system comprising a controller for performing the control method of any one of claims 1 to 9.
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