CN106524417A - Cold radiation air conditioner fresh air control method and system - Google Patents
Cold radiation air conditioner fresh air control method and system Download PDFInfo
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- CN106524417A CN106524417A CN201611037425.5A CN201611037425A CN106524417A CN 106524417 A CN106524417 A CN 106524417A CN 201611037425 A CN201611037425 A CN 201611037425A CN 106524417 A CN106524417 A CN 106524417A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
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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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- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention relates to a cold radiation air conditioner fresh air control method and system. The method includes the following steps that indoor real-time carbon dioxide concentration and relative humidity are acquired; the acquired indoor real-time carbon dioxide concentration and relative humidity, and a preset indoor carbon dioxide concentration initial value and a preset indoor relative humidity initial value are subjected to comparing operation, so that an operation result can be obtained; according to the operation result, a fresh air sub-system of a cold radiation air conditioner is controlled to be started or closed. According to the cold radiation air conditioner fresh air control method and system, by monitoring the indoor carbon dioxide concentration and relative humidity in real time, comparing operation is performed according to real-time monitored information and preset information to judge the indoor comfort degree so that conveying of indoor fresh air can be subjected to feedback control, and the indoor air quality and the heat comfort are made best; and meanwhile the energy of the fresh air sub-system of the cold radiation air conditioner can be effectively saved, and energy consumption is reduced.
Description
Technical field
The present invention relates to the technical field of air-conditioning, more particularly, it relates to a kind of cold emission air conditioner fresh air control method and
System.
Background technology
In field of central air-conditioning, the thermal comfort of terminal use is typically used for assessing whether central air conditioner system function has
One of important indicator that effect is realized.So-called human thermal comfort, refers to human body to the satisfied subjective evaluation of thermal and humidity environment.Heat is relaxed
Whether comfortably suitable to be human body self by thermal balance and the environmental aspect felt and integrate acquisition sensation, it is by giving birth to
What reason and integrative psychological were determined, also, psychological impression is more heavily weighted toward, affect the ambient parameter of human thermal comfort mainly to have
Air themperature, air velocity, the relative humidity of air and mean radiant temperature；The inherent parameters of people have clothes thermal resistance and work strong
Degree.The research of human thermal comfort is related to build the subjects such as the psychology of ermal physics, the physiology of mannequin surface modeling mechanism and people.People
The time for having more than 80% in life spend indoors, Indoor Environmental Quality such as sound, light heat environment and room air product
The physical and mental health of confrontation people, comfort and work efficiency can all produce directly impact.Meanwhile, substantial amounts of domestic and international research table
Bright, indoor air quality is also relevant with thermal environment：1) aerial temperature and humidity and wind speed can affect the release of indoor pollutant；2) it is right
The sensation of pollutant is relevant with temperature, and external relevant research is thought, in the case that the chemical composition of air keeps constant indoors,
Temperature reduces to make one to feel more comfortable, the percent dissatisfied of air quality can also be reduced.In order to obtain comfortable thermal environment,
Various countries will consume the substantial amounts of energy every year for heat supply and air-conditioning.Traditional air conditioning system generally adopts cross-ventilation heat exchange side
Formula carries out removing or adding for indoor heat, often results in building undue heating or undue cooling, so, not only right
Human body causes discomfort, while wasting substantial amounts of energy.Therefore, indoor thermal environment is adjusted using cold emission air conditioning system
Control, can avoid low-temperature receiver from wasting while human body comfort is met.Due to the sensible heat load and latent heat of cold emission air conditioning system
Load is separate independent process, and the sensible heat load of the interior space mainly has cold radiation ceiling plate to process, the whole of the interior space
Latent heat load and least a portion of sensible heat load are by the fresh air subsystem processes of cold emission air conditioning system.General cold emission is empty
The fresh air subsystem of adjusting system rule of thumb sets large, medium and small third gear in normal room and is manually controlled, and is opening greatly
Between then generally automatically control required resh air requirement using the CO2 concentration sensors of indoor location, this kind of control method can not meet
Indoor thermal comfort (such as relative humidity) requirement and the requirement of energy-conservation.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided a kind of cold emission air-conditioning
Xingfeng capsule method and system.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of cold emission air conditioner fresh air controlling party
Method, comprises the following steps：
S1, collection indoor gas concentration lwevel and relative humidity in real time；
S2, according to the interior for being gathered in real time gas concentration lwevel and relative humidity, with indoor titanium dioxide set in advance
Concentration of carbon initial value and indoor relative humidity initial value are compared computing, to obtain operation result；
S3, the fresh air subsystem for controlling the cold emission air-conditioning according to the operation result are turned on and off.
In cold emission air conditioner fresh air control method of the present invention, it is preferable that also include：
After the completion of step S3, step S1 is repeated once to step S3 every N minutes, wherein, N is big
In 0 integer.
In cold emission air conditioner fresh air control method of the present invention, it is preferable that in step S1, using titanium dioxide
Concentration of carbon sensor Real-time Collection indoor carbon dioxide concentration, while using relatively wet in relative humidity sensor Real-time Collection room
Degree.
In cold emission air conditioner fresh air control method of the present invention, it is preferable that the gas concentration lwevel sensor and
The relative humidity sensor is arranged at the cold emission air-conditioning indoor return air.
In cold emission air conditioner fresh air control method of the present invention, it is preferable that also included before step S1 with
Lower step：
Set the gas concentration lwevel and the initial value of relative humidity of the fresh air subsystem of the cold emission air-conditioning.
In cold emission air conditioner fresh air control method of the present invention, it is preferable that at the beginning of the indoor carbon dioxide concentration
Initial value is 800ppm, and the initial value of the indoor relative humidity is 50%.
In cold emission air conditioner fresh air control method of the present invention, it is preferable that in step S2, according to following public affairs
Formula is compared computing：
Δ RH=RH-50%；
Wherein,
ΔC：Represent the difference of indoor gas concentration lwevel in real time and initial value；
Cco2：Represent indoor gas concentration lwevel in real time；
RH：Represent indoor relative humidity in real time；
ΔRH：Represent the difference of indoor relative humidity in real time and initial value；
On：Represent open state；
Off：Represent off status；
Dfesh：Represent the operational order relational expression that fresh air valve receives.
In cold emission air conditioner fresh air control method of the present invention, it is preferable that in step S3, tied according to computing
Fruit judges whether the real-time gas concentration lwevel and relative humidity are up to standard, if the real-time gas concentration lwevel and relative humidity
Up to standard, then the fresh air subsystem for controlling the cold emission air-conditioning is closed；If the real-time gas concentration lwevel and relative humidity are not
Up to standard, then the fresh air subsystem for controlling the cold emission air-conditioning is opened.
In cold emission air conditioner fresh air control method of the present invention, it is preferable that if the Δ C is less than or equal to 0, described
Δ RH is less than or equal to 0, then the real-time gas concentration lwevel and relative humidity are up to standard, the fresh air subsystem of the cold emission air-conditioning
System is opened；Otherwise, the real-time gas concentration lwevel and relative humidity be not up to standard, and the fresh air subsystem of the cold emission air-conditioning is closed
Close.
The present invention also provides a kind of cold emission air conditioner fresh air control system, including：
Collecting unit, for gathering indoor gas concentration lwevel and relative humidity in real time；
Comparison operation unit, for according to the interior for being gathered in real time gas concentration lwevel and relative humidity, and is set in advance
Fixed indoor carbon dioxide concentration initial value and indoor relative humidity initial value are compared computing, to obtain operation result；
Control unit, the fresh air subsystem for controlling the cold emission air-conditioning according to the operation result are opened or are closed
Close.
Implement the cold emission air conditioner fresh air control method and system of the present invention, have the advantages that：The method includes
Following steps：Collection indoor gas concentration lwevel and relative humidity in real time；According to the real-time gas concentration lwevel in interior for being gathered
And relative humidity, fortune is compared with indoor carbon dioxide concentration initial value set in advance and indoor relative humidity initial value
Calculate, to obtain operation result；It is turned on and off according to the fresh air subsystem that operation result controls cold emission air-conditioning.The present invention passes through
Real-time monitoring is carried out to indoor gas concentration lwevel and relative humidity simultaneously, is carried out with presupposed information according to real-time monitoring information
Comparison operation is judging the conveying of indoor comfort level and then feedback control indoor fresh air, makes indoor air quality and thermal comfort
Most preferably, while can be with the energy of effectively save cold emission air conditioner fresh air subsystem, reducing energy consumption.
Description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the schematic flow sheet of cold emission air conditioner fresh air control method of the present invention；
Fig. 2 is the structural representation of cold emission air conditioner fresh air control system of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is described in further detail.
The cold emission air conditioner fresh air control method and system of the present invention are applied to the central air conditioner system for having cold emission suspended ceiling
Room air relative temperature and air quality control.Large, medium and small third gear is set rule of thumb and by handss compared to existing
Dynamic to be controlled, the present invention is by being supervised to indoor gas concentration lwevel and relative humidity in real time at air return air indoors
Survey, by the gas concentration lwevel and relative humidity of Real-time Collection and the initial value for pre-setting are compared, according to comparing
As a result dynamic control cold emission air conditioner fresh air subsystem is turned on and off, so as to dynamically adjusting the conveying capacity of indoor fresh air,
So as to realize realizing the energy-conservation of cold emission air conditioner fresh air subsystem while air quality indoors and optimal thermal comfort.
As shown in figure 1, the present invention cold emission air conditioner fresh air control method schematic flow sheet in, the method include with
Lower step：
S1, collection indoor gas concentration lwevel and relative humidity in real time；
S2, according to the interior for being gathered in real time gas concentration lwevel and relative humidity, with indoor titanium dioxide set in advance
Concentration of carbon initial value and indoor relative humidity initial value are compared computing, to obtain operation result；
S3, the fresh air subsystem for controlling cold emission air-conditioning according to operation result are turned on and off.
Further, after the completion of step S3, step S1 is repeated once to step S3 every N minutes, is realized to cold emission
The fresh air subsystem of air-conditioning carries out dynamic control.Preferably, in an embodiment of the present invention, N is the integer more than 0, according to reality
Border is adjusted and energy-conservation needs, and N generally may be configured as 10～20 minutes.
In some embodiments it may be preferred that in step sl, can be by gas concentration lwevel sensor Real-time Collection room
Gas concentration lwevel.Wherein, gas concentration lwevel sensor may be selected NHEY62 carbon dioxide sensors, NH162 carbon dioxide
Any one in sensor or NHEY63 duct type carbon dioxide sensors.It is to be appreciated that the present invention is not limited to this
Carbon dioxide sensor type employed in specific embodiment, it is also an option that those skilled in the art know and applicable
Carbon dioxide sensor.Further, carbon dioxide sensor is arranged at cold emission air-conditioning indoor return air.By by titanium dioxide
Carbon sensor is arranged at cold emission air-conditioning indoor return air, reduces the detection pressure of carbon dioxide sensor, while can be with
The accuracy of detection and efficiency of carbon dioxide sensor is greatly enhanced, makes the operational efficiency of system effectively improve.
In some embodiments it may be preferred that in step sl, can be by relative in relative humidity sensor Real-time Collection room
Humidity.Wherein, relative humidity sensor is a kind of non-renewable type polymer humidity sensor.Relative humidity sensor can select type
Number for HIH4602 integrated form relative humidity sensor.It is to be appreciated that the present invention is adopted in being not limited to this specific embodiment
Relative humidity sensor type, it is also an option that those skilled in the art know and applicable relative humidity sensor.
Further, relative humidity sensor is arranged at cold emission air-conditioning indoor return air.By relative humidity sensor is arranged on
At cold emission air-conditioning indoor return air, the detection pressure of relative humidity sensor is reduced, while can also be greatly enhanced relative
The accuracy of detection and efficiency of humidity sensor, makes the operational efficiency of system effectively improve.
In some embodiments it may be preferred that before starting to gather indoor carbon dioxide concentration and relative humidity, first in cold spoke
Penetrate in the fresh air subsystem of air-conditioning and the initial value of gas concentration lwevel and relative humidity is set.It is to be appreciated that cold
Before radiation air-conditioner brings into operation, first relevant parameter is configured, including to gas concentration lwevel and relative humidity just
Initial value is configured.And the initial value of the initial value of gas concentration lwevel and relative humidity is according to the use standard and routine of industry
Experience is set.Preferably, in the present embodiment, the initial value of indoor carbon dioxide concentration is 800ppm, indoor relatively wet
The initial value of degree is 50%.It is to be appreciated that the initial value of indoor carbon dioxide concentration is set to 800ppm, indoor relative humidity
Initial value when being set to 50%, this numerical value is indoor air quality standards of measurement, i.e., when indoor carbon dioxide concentration is big
When 800ppm or indoor relative humidity are more than 50%, indoor air quality and thermal comfort will make one to feel uncomfortable, i.e.,
The standard of indoor air quality and thermal comfort can not be met.
In some embodiments it may be preferred that in step s 2, computing is compared according to equation below：
Δ RH=RH-50%；
Wherein,
ΔC：Represent the difference of indoor gas concentration lwevel in real time and initial value；
Cco2：Represent indoor gas concentration lwevel in real time；
RH：Represent indoor relative humidity in real time；
ΔRH：Represent the difference of indoor relative humidity in real time and initial value；
On：Represent open state；
Off：Represent off status；
Dfesh：Represent the operational order that fresh air valve receives.
It is appreciated that work as collecting indoor gas concentration lwevel C in real timeco2And when indoor relative humidity RH in real time, will
The real-time gas concentration lwevel C for being collectedco2Data and indoor relative humidity RH in real time data it is initial with what is pre-set
Value is compared computing, i.e., first by real-time gas concentration lwevel Cco2Data transported with the initial value 800ppm for pre-setting
Calculate, while the indoor data of relative humidity RH in real time are carried out computing with the initial value for pre-setting 50%, obtain interior in real time
Difference DELTA RH of difference DELTA C of gas concentration lwevel and initial value and indoor relative humidity in real time and initial value, according to being obtained
The value of Δ C and the value of Δ RH substitute into the operational order relational expression that fresh air valve receives.
In step s3, the operation result for being obtained according to step S2 the operational order relation received according to fresh air valve
Δ C and Δ RH and 0 is compared judgement by formula.In other words, in the present invention, by by the indoor carbon dioxide of Real-time Collection
Computing is compared with initial value, indoor relative humidity and initial value, is passed through obtained operation result and is judged real-time dioxy
Change concentration of carbon and whether relative humidity is up to standard, i.e., whether reach the requirement of indoor air quality and thermal comfort.If real-time two
Oxidation concentration of carbon and relative humidity it is up to standard, then the operational order relational expression for being received from fresh air valve, cold emission air-conditioning it is new
Wind subsystem is closed, i.e., controller controls cold spoke automatically according to the operational order relational expression that operation result and fresh air valve receive
The fresh air subsystem for penetrating air-conditioning is closed, no longer to indoor conveying fresh air.If gas concentration lwevel and relative humidity do not reach in real time
Mark, then controller automatically controls the fresh air subsystem unlatching of cold emission air-conditioning, to indoor conveying fresh air.
It is to be appreciated that the operational order relational expression received according to fresh air valve, when Δ C is more than 0, illustrates interior
Gas concentration lwevel is higher than default initial value, meanwhile, when Δ RH is more than 0, illustrate that indoor relative humidity RH is more initial than default
Value is big, i.e., indoor carbon dioxide content and relative humidity are above initial value, now, is experienced from the comfort level of human body, should
Indoor air quality in the case of kind is not up to standard, it is impossible to meet the requirement of human comfort, it is therefore desirable to convey fresh air, that is, control
Cold emission air conditioner fresh air subsystem is opened and conveys fresh air to adjust indoor environment.When Δ C is more than 0, and Δ RH is less than or equal to 0
When, due to indoor carbon dioxide content it is still high than default initial value, therefore, indoor air quality does not still reach requirement, control
Cold emission air conditioner fresh air subsystem is opened, and to indoor conveying fresh air, adjusts indoor air quality.When Δ C is less than or equal to 0, and
When Δ RH is more than 0, now, indoor carbon dioxide concentration is less than default initial value, but as Δ RH is more than 0, interior is relatively wet
Degree easily makes human body sensory uncomfortable than larger, and indoor air quality is not up to standard, therefore, cold emission air conditioner fresh air subsystem need to be controlled
Open and convey fresh air to adjust indoor environment.When Δ C is less than or equal to 0, and Δ RH is when being less than or equal to 0, and now indoor two
Oxidation concentration of carbon and relative humidity reach the requirement of air quality and thermal comfort, therefore no longer need to convey fresh air, now
Cold emission air conditioner fresh air subsystem can directly be controlled and close valve, stopping carries out fresh air conveying to interior, such that it is able to effectively
Save energy, reducing energy consumption.Realize while indoor air quality is met and thermal comfort is optimal, save cold emission air-conditioning
The energy of fresh air subsystem, it is to avoid waste, make the energy consumption of air conditioning system effectively be reduced.
As shown in Fig. 2 for the structural representation of cold emission air conditioner fresh air control system of the present invention, the system includes：
Collecting unit 100, for gathering indoor gas concentration lwevel and relative humidity in real time；
Comparison operation unit 200, it is for according to the interior for being gathered in real time gas concentration lwevel and relative humidity, and advance
The indoor carbon dioxide concentration initial value and indoor relative humidity initial value of setting is compared computing, to obtain operation result；
Control unit 300, the fresh air subsystem for controlling cold emission air-conditioning according to operation result are turned on and off.
Further, after the execution of control unit 300 terminates, every N minutes collecting unit 100, comparison operation unit 200
And control unit 300 is repeated once, realize carrying out dynamic control to the fresh air subsystem of cold emission air-conditioning.Preferably,
In an embodiment of the present invention, N is the integer more than 0, and according to practical adjustments and energy-conservation needs, N generally may be configured as 10～20
Minute.
In some embodiments it may be preferred that when collecting unit 100 carries out the data acquisition of gas concentration lwevel, can lead to
Cross gas concentration lwevel sensor Real-time Collection indoor carbon dioxide concentration.Wherein, gas concentration lwevel sensor may be selected
Appointing in NHEY62 carbon dioxide sensors, NH162 carbon dioxide sensors or NHEY63 duct type carbon dioxide sensors
Meaning is a kind of.It is to be appreciated that the present invention is not limited to the carbon dioxide sensor type employed in this specific embodiment, may be used also
To select those skilled in the art to know and applicable carbon dioxide sensor.Further, carbon dioxide sensor is arranged
At cold emission air-conditioning indoor return air.By carbon dioxide sensor is arranged at cold emission air-conditioning indoor return air, reduce
The detection pressure of carbon dioxide sensor, while the accuracy of detection and efficiency of carbon dioxide sensor can also be greatly enhanced,
The operational efficiency of system is made to effectively improve.
In some embodiments it may be preferred that when collecting unit 100 carries out the data acquisition of relative humidity, phase can be passed through
To humidity sensor Real-time Collection indoor relative humidity.Wherein, relative humidity sensor is a kind of non-renewable type polymer humidity
Sensor.Relative humidity sensor can select the integrated form relative humidity sensor of model HIH4602.It is to be appreciated that this
Invention is not limited to the relative humidity sensor type employed in this specific embodiment, it is also an option that those skilled in the art
Know and applicable relative humidity sensor.Further, relative humidity sensor is arranged on cold emission air-conditioning indoor return air
Place.By relative humidity sensor is arranged at cold emission air-conditioning indoor return air, the detection of relative humidity sensor is reduced
Pressure, while the accuracy of detection and efficiency of relative humidity sensor can also be greatly enhanced, obtains the operational efficiency of system
Effectively improve.
In some embodiments it may be preferred that before starting to gather indoor carbon dioxide concentration and relative humidity, first in cold spoke
Penetrate in the fresh air subsystem of air-conditioning and the initial value of gas concentration lwevel and relative humidity is set.It is to be appreciated that cold
Before radiation air-conditioner brings into operation, first relevant parameter is configured, including to gas concentration lwevel and relative humidity just
Initial value is configured.And the initial value of the initial value of gas concentration lwevel and relative humidity is according to the use standard and routine of industry
Experience is set.Preferably, in the present embodiment, the initial value of indoor carbon dioxide concentration is 800ppm, indoor relatively wet
The initial value of degree is 50%.It is to be appreciated that the initial value of indoor carbon dioxide concentration is set to 800ppm, indoor relative humidity
Initial value when being set to 50%, this numerical value is indoor air quality standards of measurement, i.e., when indoor carbon dioxide concentration is big
When 800ppm or indoor relative humidity are more than 50%, indoor air quality and thermal comfort will make one to feel uncomfortable, i.e.,
The standard of indoor air quality and thermal comfort can not be met.
In some embodiments it may be preferred that when computing unit 200 performs comparison operation, being compared according to equation below
Compared with computing：
Δ RH=RH-50%；
Wherein,
ΔC：Represent the difference of indoor gas concentration lwevel in real time and initial value；
Cco2：Represent indoor gas concentration lwevel in real time；
RH：Represent indoor relative humidity in real time；
ΔRH：Represent the difference of indoor relative humidity in real time and initial value；
On：Represent open state；
Off：Represent off status；
Dfesh：Represent the operational order that fresh air valve receives.
It is appreciated that work as collecting indoor gas concentration lwevel C in real timeco2And when indoor relative humidity RH in real time, will
The real-time gas concentration lwevel C for being collectedco2Data and indoor relative humidity RH in real time data it is initial with what is pre-set
Value is compared computing, i.e., first by real-time gas concentration lwevel Cco2Data transported with the initial value 800ppm for pre-setting
Calculate, while the indoor data of relative humidity RH in real time are carried out computing with the initial value for pre-setting 50%, obtain interior in real time
Difference DELTA RH of difference DELTA C of gas concentration lwevel and initial value and indoor relative humidity in real time and initial value, according to being obtained
The value of Δ C and the value of Δ RH substitute into the operational order relational expression that fresh air valve receives.
In 300 implementation procedure of control unit, the operation result that obtained according to comparison operation unit 200 according to fresh air
Δ C and Δ RH and 0 is compared judgement by the operational order relational expression that valve receives.In other words, in the present invention, by inciting somebody to action
The indoor carbon dioxide of Real-time Collection is compared computing with initial value, indoor relative humidity and initial value, passes through what is obtained
Operation result judges whether real-time gas concentration lwevel and relative humidity are up to standard, i.e., whether reach indoor air quality and heat is relaxed
The requirement of adaptive.If gas concentration lwevel and relative humidity are up to standard in real time, the operational order relation received by fresh air valve
Formula understands that the fresh air subsystem of cold emission air-conditioning is closed, i.e., controller receives automatically according to operation result and fresh air valve
The fresh air subsystem of operational order relational expression control cold emission air-conditioning is closed, no longer to indoor conveying fresh air.If real-time dioxy
Change concentration of carbon and relative humidity is not up to standard, then controller automatically controls the fresh air subsystem unlatching of cold emission air-conditioning, defeated to interior
Send fresh air.
It is to be appreciated that the operational order relational expression received according to fresh air valve, when Δ C is more than 0, illustrates interior
Gas concentration lwevel is higher than default initial value, meanwhile, when Δ RH is more than 0, illustrate that indoor relative humidity RH is more initial than default
Value is big, i.e., indoor carbon dioxide content and relative humidity are above initial value, now, is experienced from the comfort level of human body, should
Indoor air quality in the case of kind is not up to standard, it is impossible to meet the requirement of human comfort, it is therefore desirable to convey fresh air, that is, control
Cold emission air conditioner fresh air subsystem is opened and conveys fresh air to adjust indoor environment.When Δ C is more than 0, and Δ RH is less than or equal to 0
When, due to indoor carbon dioxide content it is still high than default initial value, therefore, indoor air quality does not still reach requirement, control
Cold emission air conditioner fresh air subsystem is opened, and to indoor conveying fresh air, adjusts indoor air quality.When Δ C is less than or equal to 0, and
When Δ RH is more than 0, now, indoor carbon dioxide concentration is less than default initial value, but as Δ RH is more than 0, interior is relatively wet
Degree easily makes human body sensory uncomfortable than larger, and indoor air quality is not up to standard, therefore, cold emission air conditioner fresh air subsystem need to be controlled
Open and convey fresh air to adjust indoor environment.When Δ C is less than or equal to 0, and Δ RH is when being less than or equal to 0, and now indoor two
Oxidation concentration of carbon and relative humidity reach the requirement of air quality and thermal comfort, therefore no longer need to convey fresh air, now
Cold emission air conditioner fresh air subsystem can directly be controlled and close valve, stopping carries out fresh air conveying to interior, such that it is able to effectively
Save energy, reducing energy consumption.Realize while indoor air quality is met and thermal comfort is optimal, save cold emission air-conditioning
The energy of fresh air subsystem, it is to avoid waste, make the energy consumption of air conditioning system effectively be reduced.
Above example technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement accordingly, can not limit the scope of the invention.It is all to want with right of the present invention
Impartial change and modification that scope done is asked, the covering scope of the claims in the present invention all should be belonged to.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations should all belong to the protection domain of claims of the present invention.
Claims (10)
1. a kind of cold emission air conditioner fresh air control method, it is characterised in that comprise the following steps：
S1, collection indoor gas concentration lwevel and relative humidity in real time；
S2, according to the interior for being gathered in real time gas concentration lwevel and relative humidity, it is dense with indoor carbon dioxide set in advance
Degree initial value and indoor relative humidity initial value are compared computing, to obtain operation result；
S3, the fresh air subsystem for controlling the cold emission air-conditioning according to the operation result are turned on and off.
2. cold emission air conditioner fresh air control method according to claim 1, it is characterised in that also include：
After the completion of step S3, step S1 is repeated once to step S3 every N minutes, wherein, N is more than 0
Integer.
3. cold emission air conditioner fresh air control method according to claim 1, it is characterised in that in step S1, adopt
With gas concentration lwevel sensor Real-time Collection indoor carbon dioxide concentration, while adopting relative humidity sensor Real-time Collection room
Interior relative humidity.
4. cold emission air conditioner fresh air control method according to claim 3, it is characterised in that the gas concentration lwevel is passed
Sensor and the relative humidity sensor are arranged at the cold emission air-conditioning indoor return air.
5. cold emission air conditioner fresh air control method according to claim 1, it is characterised in that before step S1 also
Comprise the following steps：
Set the gas concentration lwevel and the initial value of relative humidity of the fresh air subsystem of the cold emission air-conditioning.
6. cold emission air conditioner fresh air control method according to claim 1, it is characterised in that the indoor carbon dioxide is dense
The initial value of degree is 800ppm, and the initial value of the indoor relative humidity is 50%.
7. cold emission air conditioner fresh air control method according to claim 1, it is characterised in that in step S2, press
Computing is compared according to equation below：
Δ RH=RH-50%；
Wherein,
ΔC：Represent the difference of indoor gas concentration lwevel in real time and initial value；
Cco2：Represent indoor gas concentration lwevel in real time；
RH：Represent indoor relative humidity in real time；
ΔRH：Represent the difference of indoor relative humidity in real time and initial value；
On：Represent open state；
Off：Represent off status；
Dfesh：Represent the operational order relational expression that fresh air valve receives.
8. cold emission air conditioner fresh air control method according to claim 7, it is characterised in that in step S3, root
Judge whether the real-time gas concentration lwevel and relative humidity up to standard according to operation result, if the real-time gas concentration lwevel and
Relative humidity is up to standard, then the fresh air subsystem for controlling the cold emission air-conditioning is closed；If the real-time gas concentration lwevel and phase
Not up to standard to humidity, then the fresh air subsystem for controlling the cold emission air-conditioning is opened.
9. cold emission air conditioner fresh air control method according to claim 7, it is characterised in that if the Δ C is less than or waits
In 0, the Δ RH is less than or equal to 0, then the real-time gas concentration lwevel and relative humidity are up to standard, the cold emission air-conditioning
Fresh air subsystem is opened；Otherwise, the real-time gas concentration lwevel and relative humidity be not up to standard, the fresh air of the cold emission air-conditioning
Subsystem is closed.
10. a kind of cold emission air conditioner fresh air control system, it is characterised in that include：
Collecting unit, for gathering indoor gas concentration lwevel and relative humidity in real time；
Comparison operation unit, it is for according to the interior for being gathered in real time gas concentration lwevel and relative humidity, and set in advance
Indoor carbon dioxide concentration initial value and indoor relative humidity initial value are compared computing, to obtain operation result；
Control unit, the fresh air subsystem for controlling the cold emission air-conditioning according to the operation result are turned on and off.
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| CN201611037425.5A CN106524417A (en) | 2016-11-23 | 2016-11-23 | Cold radiation air conditioner fresh air control method and system |
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| CN201611037425.5A CN106524417A (en) | 2016-11-23 | 2016-11-23 | Cold radiation air conditioner fresh air control method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112696737A (en) * | 2020-12-17 | 2021-04-23 | 湖南中南智能装备有限公司 | Method for controlling indoor fresh air volume by combining air conditioner and automatic window |
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