CN106322634B - A kind of energy-saving control device and its control method of air conditioner fresh air machine - Google Patents
A kind of energy-saving control device and its control method of air conditioner fresh air machine Download PDFInfo
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- CN106322634B CN106322634B CN201510358450.2A CN201510358450A CN106322634B CN 106322634 B CN106322634 B CN 106322634B CN 201510358450 A CN201510358450 A CN 201510358450A CN 106322634 B CN106322634 B CN 106322634B
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention discloses the energy-saving control devices and its control method of a kind of air conditioner fresh air machine, wherein energy-saving control method is the following steps are included: step S1: being monitored on-line by outdoor temperature sensor and outside humidity sensor to the epidemic disaster parameter of air-conditioning outdoor air, passes through indoor CO2Concentration sensor is to indoor CO2Concentration parameter is monitored on-line；Step S2: outdoor temp, the humidity parameter obtained using on-line monitoring, which is calculated, obtains outdoor air enthalpy HW；Step S3: by outdoor air enthalpy HWIt is compared with preset outdoor air enthalpy, indoor CO is dynamically determined according to the comparing result of enthalpy2Concentration optimization setting value yset；Step S4: by the indoor CO of on-line monitoring2Concentration value y and interior CO2Concentration optimization setting value ysetIt is compared, new blower inverter control signal is issued according to the deviation of the two, to realize that the dynamic to fresh air volume controls.The present invention meets indoor air quality requirement, and reached energy saving purpose by working out optimized operation shaping modes.
Description
Technical field
The present invention relates to the control device of the apparatus of air conditioning and control method more particularly to a kind of sections of air conditioner fresh air machine
It can control device and control method.
Background technique
China's building energy consumption accounts for about the 1/3 of social total energy consumption, wherein the energy consumption accounting for the regulation of air thermal and humidity environment is
It has been more than 65%, has brought significant impact to Chinese society sustainable economic development, and wherein Fresh air handing energy consumption accounts for about air-conditioning
The 30%-40% of total energy consumption.It is the key that guarantee good indoor air quality that outdoor fresh air is introduced in air-conditioning system, but empty
Energy consumed by adjusting system Fresh air handing is also very huge, so, under the premise of meeting indoor air quality, rationally
Control fresh air volume can substantially reduce new air-conditioning system energy consumption.
There are mainly two types of approach for fresh air system energy conservation at present: first is that such as being returned using full heat or sensible heat using heat recovery technology
Receiving apparatus carries out the method for precooling treatment to fresh air to reduce fresh air energy consumption, and another is the fresh air volume of regulating system.
For civil buildings, the fresh air volume of air-conditioning is mainly used for meeting personnel's hygienic requirements, and air-conditioning system is designing
When, generally by the quantity of personnel under the conditions of design conditions multiplied by the fresh air volume standard of personnel, and in air-conditioning system actual motion,
Most fresh air system are run by design conditions, and new blower does not have regulating measure and measure.But architecture indoor total number of persons is the moment
Variation, in the building of market, often the variation within one day or on weekdays between weekend is all indoor visitor flow rate
It is very big, if sending fresh air by the demand of maximum number, higher Fresh air handing energy consumption certainly will be will cause.
Western countries just attach great importance to air conditioning system energy conservation in energy crisis, in last century the seventies, just have
Scholar is it is proposed that pass through detection CO2Concentration controls fresh air air output, that is, uses demand control method, indoor CO2Mainly
Caused by being breathed as personnel, personnel amount is more, indoor CO2Concentration is bigger.By detecting CO2Concentration controls fresh air air output
Method obtaining cracking development during the decade at that time, this method is first one interior CO of setting2Value, as indoor CO2Concentration is high
When the value, then fresh air valve opening, increases air output and reduces interior CO2Concentration, conversely, as interior CO2Concentration is lower than setting value
When, fresh air valve can be automatically closed, and reduce air output.The benefit of the method is can be according to indoor CO2Concentration carries out fresh air volume
Adjusting.But this method does not account for outdoor air conditions.Handle the calculating formula of the consumption cold of air conditioner fresh air are as follows: Qfa=Gfa
(Hw-Hn), in formula: QfaFor fresh air cooling consumption (unit: kW), GfaFor fresh air volume, (unit: kg/s, Hw are outdoor air enthalpy
(unit: kJ/kg), Hn are room air enthalpy (unit: kJ/kg).
Fresh air cooling consumption is removed to be had outside the Pass with fresh air volume, also related to outdoor air enthalpy.Interior as only pressed a certain fixation
CO2Concentration set point carries out the adjusting of fresh air volume, and energy-saving potential and indoor air quality fail to be optimal state.Therefore
When needing a kind of control fresh air system, optimal operation tune can be worked out in conjunction with outdoor environment state and indoor air quality demand
Section mode meets indoor air quality requirement, and realizes the energy-saving control device and controlling party of the air conditioner fresh air machine of energy saving purpose
Method.
Summary of the invention
The object of the present invention is to provide one kind by formulation optimized operation shaping modes, meets indoor air quality requirement,
Reach the energy-saving control method and energy-saving control device of energy saving purpose air conditioner fresh air machine again.
To achieve the goals above, the present invention provides a kind of energy-saving control methods of air conditioner fresh air machine, it is characterised in that:
The energy-saving control method the following steps are included:
Step S1: by outdoor temperature sensor and outside humidity sensor to the epidemic disaster parameter of air-conditioning outdoor air
It is monitored on-line, passes through indoor CO2Concentration sensor is to indoor CO2Concentration parameter is monitored on-line；
Step S2: the epidemic disaster parameter of the outdoor air obtained using on-line monitoring, which is calculated, obtains outdoor air
Enthalpy HW；
Step S3: by the outdoor air enthalpy HWIt is compared with preset outdoor air enthalpy, according to pair of enthalpy
Indoor CO is dynamically determined than result2The optimal setting value y of concentrationset；
Step S4: by the indoor CO of on-line monitoring2The concentration value y and interior CO2The optimal setting value y of concentrationsetIt carries out
Compare, corresponding new blower inverter control signal is issued according to the deviation of the two, to realize that the dynamic to fresh air volume controls.
Before step S1 further include:
Step S0: the lower limit value of default outdoor air enthalpy is HA, upper limit value HB；Default interior CO2The lower limit value of concentration
For CA, upper limit value CB；Default interior CO2The allowable fluctuation range of concentration value is △ yset。
Further include: step S5: by the detected air outlet temperature T of leaving air temp sensor and preset air outlet temperature
TsetIt compares, as the air outlet temperature T and default air outlet temperature TsetThe deviation △ T of the two exceeds preset permission
Deviation range △ TsetWhen, the aperture for controlling new blower chilled water valve is adjusted by standard pid control algorithm.
The step S1 is specifically included: the outdoor temperature sensor and outside humidity sensor acquire outside air conditioning chamber respectively
The epidemic disaster signal of air is examined using the epidemic disaster signal of the outdoor air as outdoor temperature detection unit and outside humidity
Survey the input signal of unit；The interior CO2CO in concentration sensor collection room2Concentration signal, the interior CO2Concentration letter
Number be used as interior CO2The input signal of concentration detecting unit.
The step S3 is specifically included: by the outdoor air enthalpy HWIt is compared with preset outdoor air enthalpy,
If the outdoor air enthalpy HWGreater than preset outdoor air enthalpy upper limit value HBWhen, allow indoor CO2The optimal setting value of concentration
ysetEqual to default interior CO2Upper limit of concentration value CB；
If outdoor air enthalpy HWLess than preset outdoor air enthalpy lower limit value HAWhen, allow indoor CO2Concentration optimization setting
Value ysetEqual to preset interior CO2Concentration limit value CA；
If outdoor air enthalpy HWMore than or equal to preset outdoor air enthalpy lower limit value HAAnd it is less than or equal to default outdoor empty
Gas enthalpy upper limit value HBWhen,
The invention also discloses a kind of energy-saving control devices of air conditioner fresh air machine, comprising: main control unit, with the master control list
Storage unit, driving output unit, outdoor temperature detection unit, outside humidity detection unit and the interior CO of member connection2Concentration
Detection unit；
The storage unit is used to store acquisition data, preset data and calculates the data obtained；
The driving output unit connects new fan frequency converter, for the instruction according to the main control unit, output control
Signal controls new blower frequency converter frequency；
The outdoor temperature detection unit connects outdoor temperature sensor, for monitoring the ginseng of the temperature outside air conditioning chamber on-line
Number；
The outside humidity detection unit connects outside humidity sensor, for monitoring the ginseng of the humidity outside air conditioning chamber on-line
Number；
The interior CO2CO in concentration detecting unit junction chamber2Concentration sensor, for CO in on-line checking air-conditioned room2It is dense
Degree；The Air Temperature outside air conditioning chamber that the main control unit is acquired according to the outdoor temperature sensor and outside humidity sensor,
Humidity parameter calculates outdoor air enthalpy HW, the outdoor air enthalpy H obtained will be calculatedWIt is carried out with preset outdoor air enthalpy
Compare, is then dynamically determined indoor CO using the comparison result of the enthalpy2The optimal setting value y of concentrationset；Finally further according to institute
State indoor CO2The indoor CO of concentration sensor detection2The concentration value y and interior CO2The optimal setting value y of concentrationsetBetween
Deviation issues corresponding new blower Frequency Converter Control instruction to the driving output unit, to realize the control to fresh air volume.
Further include: the air outlet temperature detection unit being connect with the main control unit, the air outlet temperature detection unit
Leaving air temp sensor is connected, for monitoring the air themperature at new fan outlet on-line；
The driving output unit is also connected with new blower chilled water valve；
The main control unit according at the collected new fan outlet of the leaving air temp sensor air themperature with
Deviation dynamic between preset air outlet temperature value refers to the control that the driving output unit issues chilled water valve opening
It enables, to realize the control to new air temperature.
The outdoor temperature detection unit, outside humidity detection unit, interior CO2Concentration detecting unit, air outlet temperature
AD conversion unit is provided between detection unit and the main control unit.
Further include: the RS485 interface unit connecting with the main control unit, the RS485 interface unit is for remotely supervising
Control the state and remotely modifying control parameter of energy-saving control device.
Further include: digital quantity input unit, the digital quantity input unit connection monitoring running state device, hand are opened automatically
Pass, air duct pressure difference switch and frequency conversion fault monitoring device；The operation of the new blower of the monitoring running state device on-line monitoring
Status data, status data, the frequency conversion malfunction monitoring of status data, the air duct pressure difference switch that the hand is automatically switched
The frequency conversion fault data of device on-line checking by the digital quantity input unit send to the main control unit make it is described
Main control unit issues corresponding control instruction.
Compared with prior art, the present invention considers outdoor air enthalpy when controlling fresh air system, when outdoor air enthalpy
When being worth higher, the energy consumption for handling unit fresh air volume is just high, at this point, making indoor CO2Concentration optimization setting value is in higher value, subtracts
Few fresh air volume.When outdoor air enthalpy is lower, the energy consumption of unit fresh air volume is handled with regard to low, at this point, making indoor CO2Concentration optimization
Setting value is in lower value, increases fresh air volume.The present invention reaches by working out optimal runing adjustment mode and meets interior
Air quality requirements, and realize energy-efficient purpose.
Detailed description of the invention
Fig. 1 is the energy-saving control method flow chart of air conditioner fresh air machine of the present invention；
Fig. 2 is the step S3 flow chart of the energy-saving control method of air conditioner fresh air machine of the present invention:
Fig. 3 is the energy-saving control device structural schematic diagram of air conditioner fresh air machine of the present invention；
Fig. 4 is the main control unit circuit diagram of the energy-saving control device of air conditioner fresh air machine of the present invention；
Fig. 5 is the RS485 interface unit circuit diagram of the energy-saving control device of air conditioner fresh air machine of the present invention；
Fig. 6 is four railway digital amount input voltage conditioning circuit figures of the energy-saving control device of air conditioner fresh air machine of the present invention；
Fig. 7 is two road analog output voltage conditioning circuit figures of the energy-saving control device of air conditioner fresh air machine of the present invention；
Fig. 8 is four road analog input voltage conditioning circuit figures of the energy-saving control device of air conditioner fresh air machine of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
As shown in figure 3, the energy-saving control device of air conditioner fresh air machine of the present invention, comprising: main control unit 1, with the master control list
Outdoor temperature detection unit 3, the outside humidity detection unit 4, interior CO of 1 connection of member2Concentration detecting unit 5, air outlet temperature
Detection unit 6, driving output unit 7 and storage unit 9.The main control unit is specially single-chip microcontroller.
The outdoor temperature detection unit 3 connects outdoor temperature sensor 31, for monitoring the temperature outside air conditioning chamber on-line
Parameter.
The outside humidity detection unit 4 connects outside humidity sensor 41, for monitoring the humidity outside air conditioning chamber on-line
Parameter.
The interior CO2CO in 5 junction chamber of concentration detecting unit2Concentration sensor 51, in on-line checking air-conditioned room
CO2Concentration y.
The air outlet temperature detection unit 6 connects leaving air temp sensor 61, for controlling the leaving air temp sensing
Device 61 monitors the air themperature T at new fan outlet on-line.
The driving output unit 7 connects new fan frequency converter 72 and new blower chilled water valve 71, for according to master control
The instruction of unit 1, output control signal control the frequency of new fan frequency converter 72 to realize the transmission of control fresh air volume, output control
Signal processed controls the aperture of new blower chilled water valve 71 to realize the control to new air temperature.
The storage unit 9 is used to store acquisition data, preset data and calculates the data obtained.The storage unit tool
Body is eeprom memory.
The main control unit 1 is used for the air-conditioning acquired according to the outdoor temperature sensor 31 and outside humidity sensor 41
Outdoor air epidemic disaster parameter calculates outdoor air enthalpy HW, the outdoor air enthalpy H obtained will be calculatedWWith default outdoor air
Enthalpy is compared, and is then dynamically determined indoor CO using the comparison result of the enthalpy2The optimal setting value y of concentrationset；Finally
Further according to the interior CO2The indoor CO of concentration sensor detection2The concentration value y and interior CO2The optimal setting value of concentration
ysetBetween deviation corresponding new blower Frequency Converter Control instruction is issued to the driving output unit 7, to realize to fresh air
The control of amount.The main control unit 1 can also be according to the sky at the collected new fan outlet of the leaving air temp sensor 61
Temperature degree T and preset air outlet temperature value TsetBetween deviation dynamic to the driving output unit 7 issue freeze water valve
The control instruction of aperture, to realize the control to new air temperature.
The outdoor temperature detection unit 3, outside humidity detection unit 4, interior CO2Concentration detecting unit 5, air outlet temperature
AD conversion unit is provided between degree detection unit 6 and the main control unit 1, the AD conversion unit is four tunnel analog quantitys
Input voltage conditioning circuit, as shown in figure 8, specially precision is 10 analog-digital converters.
It is provided with D/A conversion unit between the main control unit 1 and the driving output unit 7, D/A conversion unit
The control voltage of delivery outlet output 0-10V.D/A conversion unit is two road analog output voltage conditioning circuits, as shown in fig. 7,
It is made of PWM filter circuit and amplifying circuit, PWM filter circuit is made of two resistance and two capacitors, and amplifying circuit is by transporting
It calculates amplifier and NPN triode and two resistance compositions, R9 and R10 is used as short-circuit protection.
Energy-saving control device of the present invention further includes the digital quantity input unit 8 connecting with the main control unit 1, the number
It measures input unit 8 and connects monitoring running state device 81, hand automatic switch 82, air duct pressure difference switch 83, frequency conversion malfunction monitoring dress
Set 84.The motion state monitoring device 81 is for detecting the operating status for feeding back new blower.The hand automatic switch 82 is used for
The manually or automatically state of energy-saving adjusting controller, when the hand auto state signal of hand automatic switch 82 is manual, energy conservation
Controller stops working, and analog quantity frequency output voltage is 0；When the hand auto state signal of manual switch 82 is automatic, section
It can control device normal work.When energy-saving controller works, when detecting that air duct pressure difference switch 83 is abnormal, energy-saving controller stops
It only works, analog quantity frequency output voltage is 0.When energy-saving controller works, when frequency conversion fault monitoring device 84 detects frequency conversion
When failure, energy-saving controller stops working, and analog quantity frequency output voltage is 0.The digital quantity input unit 8 is specially four tunnels
Digital quantity input voltage conditioning circuit, is made of, as shown in Figure 6 pull-up resistor and filter capacitor.The monitoring running state dress
The running state data of the new blower of 81 on-line monitorings is set, status data, the air duct pressure difference of the hand automatic switch 82 are opened
Close 83 status data, the frequency conversion fault data of 84 on-line checking of frequency conversion fault monitoring device is inputted by the digital quantity
Unit 8 sends the main control unit 1 to and then the main control unit 1 is made to issue corresponding control instruction.
Energy-saving control device of the present invention further includes the RS485 interface unit 2 connecting with the main control unit 1, RS485 interface
Unit 2 is for remotely monitoring the state and remotely modifying control parameter of energy-saving control device, as shown in Figure 5.
As shown in Figure 1, the energy-saving control method of air conditioner fresh air machine of the present invention, comprising the following steps:
Step S0: default outdoor air enthalpy lower limit value is HA, outdoor air enthalpy upper limit value is HB；Default interior CO2It is dense
Degree lower limit value is CA, indoor CO2Upper limit of concentration value is CB；Default interior CO2The allowable fluctuation range of concentration value is △ yset.It is default
Outdoor air enthalpy lower limit value HAWith outdoor air enthalpy upper limit value HBPurpose be to meet the needs of energy-saving run.It is default
Indoor CO2Concentration limit value CAAlso for energy-efficient demand is met, for example, interior CO2Concentration limit value CAFor 600ppm.In advance
If interior CO2Upper limit of concentration value CBIt is to meet country about indoor CO2The requirement of concentration standard, for example, interior CO2Concentration
Upper limit value CBFor 1000ppm.When controlling the aperture of new blower chilled water valve, also need to preset the air outlet of new blower in step S0
Temperature TsetAnd the tolerance range △ T of air outlet temperatureset。
Step S1: by outdoor temperature sensor and outside humidity sensor to air conditioning chamber outside Air Temperature, humidity parameter
It is monitored on-line, passes through indoor CO2Concentration sensor is to indoor CO2Concentration parameter is monitored on-line.Step S1 is specifically wrapped
Include: the outdoor temperature sensor and outside humidity sensor acquire the epidemic disaster signal outside air conditioning chamber respectively, the outdoor
Input signal of the epidemic disaster signal as outdoor temperature detection unit and outside humidity detection unit；The interior CO2Concentration passes
CO in sensor collection room2Concentration signal, the interior CO2Concentration signal is used as interior CO2The input of concentration detecting unit is believed
Number.
Step S2: the outdoor temperature parameter t and outside humidity parameter RH obtained using on-line monitoring, which is calculated, obtains room
Outer air enthalpy HW.Outdoor air enthalpy H is calculated using temperature and humidity parameterWCalculation formula it is as follows:
Formula (1) HW=1.005t+X (2500+1.84t) t is outdoor temp angle value, and X is water capacity；
Formula (2) water capacityWherein P is 101325, i.e. an atmospheric pressure, and unit is Pascal (Pa)；
Formula (3)Wherein PqFor vapour pressure, unit is Pascal (Pa), Pq,bFor saturation vapour pressure, unit
For Pascal (Pa), wherein Pq,bIt can check that existing saturation vapour pressure table show that this belongs to the prior art, not do herein superfluous
It states.
When calculating enthalpy, first by outside humidity parameter RH and Pq,bIt substitutes into formula (3) and P is calculatedq, by PqIt substitutes into
It is calculated in formula (2) and obtains water capacity X, will finally calculate outdoor temp angle value t and the substitution of the water capacity X and detection that obtain
Outdoor air enthalpy is calculated in (1) in formula.
Step S3: the outdoor air enthalpy H obtained will be calculatedWIt is compared with preset outdoor air enthalpy, root
Indoor CO is dynamically determined according to the comparing result of the enthalpy2Concentration optimization setting value yset。
The step S3 is specifically included: will calculate the outdoor air enthalpy H obtainedWWith preset outdoor air enthalpy
It is compared, if the outdoor air enthalpy HWGreater than default outdoor air enthalpy upper limit value HBWhen, allow indoor CO2Concentration it is excellent
Change setting value ysetEqual to default interior CO2Upper limit of concentration value CB, i.e. yset=CB；
If outdoor air enthalpy HWLess than default outdoor air enthalpy lower limit value HAWhen, allow indoor CO2Concentration optimization setting value
ysetEqual to default interior CO2Concentration limit value CA, i.e. yset=CA；
If outdoor air enthalpy HWMore than or equal to default outdoor air enthalpy lower limit value HAAnd it is less than or equal to default outdoor air
Enthalpy upper limit value HBWhen,
Step S4: by the indoor CO of on-line monitoring2The concentration value y and interior CO2The optimal setting value y of concentrationsetIt carries out
Compare, corresponding new blower inverter control signal is issued according to the deviation of the two, to realize that the dynamic to fresh air volume controls.
By the way that the indoor CO obtained will be monitored on-line2The concentration parameter y and interior CO2The optimal setting value y of concentrationsetIt is compared,
Determine interior CO2Concentration parameter y and interior CO2Concentration optimization setting value ysetWhether the deviation △ y of the two is allowing to fluctuate model
Enclose △ ysetIt is interior, if it is not, then changing new blower frequency converter frequency by the control of standard pid control algorithm, realize the control to fresh air volume
System.New blower frequency converter frequency is changed using the control of standard pid control algorithm and belongs to common knowledge, reference can be made to " buildings in Beijing work
Journey institute " 2012 years Gao Feifei " hotel's Xingfeng capsule systematic research based on fuzzy-adaptation PID control ", also reference can be made to Chinese encyclopaedia
In net in electronic component column frequency converter column article, content be PID control technology.
Step S5: by the detected air outlet temperature T of leaving air temp sensor and default air outlet temperature TsetCarry out pair
Than adjusting the aperture for controlling new blower chilled water valve according to the deviation of the two.By will test the air outlet temperature T of acquisition with
Default air outlet temperature TsetIt compares, determines air outlet temperature T and default air outlet temperature TsetThe deviation △ T of the two is
It is no in tolerance range △ TsetIt is interior, opening for new blower chilled water valve is controlled if it is not, then adjusting by standard pid control algorithm
Degree.Belong to the prior art by the aperture that standard pid control algorithm controls to adjust new blower chilled water valve, this will not be repeated here.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.It is done within the spirit and principles of the present invention any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of energy-saving control method of air conditioner fresh air machine, it is characterised in that: the energy-saving control method the following steps are included:
Step S1: the epidemic disaster parameter of air-conditioning outdoor air is carried out by outdoor temperature sensor and outside humidity sensor
On-line monitoring, passes through indoor CO2Concentration sensor is to indoor CO2Concentration parameter is monitored on-line；
Step S2: the epidemic disaster parameter of the outdoor air obtained using on-line monitoring calculates the enthalpy for obtaining outdoor air
HW；
Step S3: by the outdoor air enthalpy HWIt is compared with preset outdoor air enthalpy, according to the comparing result of enthalpy
It is dynamically determined indoor CO2The optimal setting value y of concentrationset；
Step S4: by the indoor CO of on-line monitoring2The concentration value y and interior CO2The optimal setting value y of concentrationsetIt is compared,
Corresponding new blower inverter control signal is issued according to the deviation of the two, to realize that the dynamic to fresh air volume controls.
2. the energy-saving control method of air conditioner fresh air machine according to claim 1, it is characterised in that before step S1 further include:
Step S0: the lower limit value of default outdoor air enthalpy is HA, upper limit value HB；Default interior CO2The lower limit value of concentration is CA,
Upper limit value is CB；Default interior CO2The allowable fluctuation range of concentration value is △ yset。
3. the energy-saving control method of air conditioner fresh air machine according to claim 2, it is characterised in that further include:
Step S5: by the detected air outlet temperature T of leaving air temp sensor and preset air outlet temperature TsetCarry out pair
Than as the air outlet temperature T and default air outlet temperature TsetThe deviation △ T of the two exceeds preset tolerance range
△TsetWhen, the aperture for controlling new blower chilled water valve is adjusted by standard pid control algorithm.
4. the energy-saving control method of air conditioner fresh air machine according to any one of claims 1 to 3, which is characterized in that the step
Rapid S1 is specifically included:
The outdoor temperature sensor and outside humidity sensor acquire the epidemic disaster signal of air-conditioning outdoor air respectively, institute
State input signal of the epidemic disaster signal of outdoor air as outdoor temp, humidity detection unit；The interior CO2Concentration sensing
CO in device collection room2Concentration signal, the interior CO2Concentration signal is used as interior CO2The input signal of concentration detecting unit.
5. the energy-saving control method of air conditioner fresh air machine according to claim 2 or 3, which is characterized in that the step S3 tool
Body includes:
By the outdoor air enthalpy HWIt is compared with preset outdoor air enthalpy, if the outdoor air enthalpy HWIt is greater than
Preset outdoor air enthalpy upper limit value HBWhen, allow indoor CO2The optimal setting value y of concentrationsetEqual to default interior CO2In concentration
Limit value CB；
If outdoor air enthalpy HWLess than preset outdoor air enthalpy lower limit value HAWhen, allow indoor CO2Concentration optimization setting value
ysetEqual to preset interior CO2Concentration limit value CA；
If outdoor air enthalpy HWMore than or equal to preset outdoor air enthalpy lower limit value HAAnd it is less than or equal to preset outdoor air
Enthalpy upper limit value HBWhen,
6. a kind of energy-saving control device of air conditioner fresh air machine, comprising: main control unit (1) is deposited with what the main control unit (1) was connect
Storage unit (9), driving output unit (7), outdoor temperature detection unit (3), outside humidity detection unit (4) and interior CO2It is dense
It spends detection unit (5)；
The storage unit (9) is used to store acquisition data, preset data and calculates the data obtained；
The driving output unit (7) connects new fan frequency converter (72), defeated for the instruction according to the main control unit (1)
Control signal controls new blower frequency converter frequency out；
The outdoor temperature detection unit (3) connects outdoor temperature sensor (31), for monitoring the temperature outside air conditioning chamber on-line
Parameter；
The outside humidity detection unit (4) connects outside humidity sensor (41), for monitoring the humidity outside air conditioning chamber on-line
Parameter；
The interior CO2CO in concentration detecting unit (5) junction chamber2Concentration sensor (51), in on-line checking air-conditioned room
CO2Concentration；
The air conditioning chamber that the main control unit (1) acquires according to the outdoor temperature sensor (31) and outside humidity sensor (41)
Outer Air Temperature, humidity parameter calculate outdoor air enthalpy HW, the outdoor air enthalpy H obtained will be calculatedWWith preset outdoor sky
Gas enthalpy is compared, and is then dynamically determined indoor CO using the comparison result of the enthalpy2The optimal setting value y of concentrationset；Most
Afterwards further according to the interior CO2The indoor CO of concentration sensor (51) detection2The concentration value y and interior CO2The optimization of concentration is set
Definite value ysetBetween deviation corresponding new blower Frequency Converter Control instruction is issued to the driving output unit (7), to realize
Control to fresh air volume.
7. the energy-saving control device of air conditioner fresh air machine as claimed in claim 6, it is characterised in that further include: with the master control list
The air outlet temperature detection unit (6) of first (1) connection, the air outlet temperature detection unit (6) connect leaving air temp sensor
(61), for monitoring the air themperature at new fan outlet on-line；
The driving output unit (7) is also connected with new blower chilled water valve (71)；
The main control unit (1) is according to the air themperature at the collected new fan outlet of leaving air temp sensor (61)
Deviation dynamic between preset air outlet temperature value issues the control of chilled water valve opening to driving output unit (7)
System instruction, to realize the control to new air temperature.
8. the energy-saving control device of air conditioner fresh air machine as claimed in claim 7, it is characterised in that: the outdoor temperature detection is single
First (3), outside humidity detection unit (4), interior CO2Concentration detecting unit (5), air outlet temperature detection unit (6) with it is described
Main control unit is provided with AD conversion unit between (1).
9. the energy-saving control device of air conditioner fresh air machine as claimed in claim 7, it is characterised in that further include: with the master control list
The RS485 interface unit (2) of first (1) connection, the RS485 interface unit (2) is for remotely monitoring the shape of energy-saving control device
State and remotely modifying control parameter.
10. according to the energy-saving control device of the described in any item air conditioner fresh air machines of claim 6 to 9, it is characterised in that further include:
Digital quantity input unit (8),
Digital quantity input unit (8) connection monitoring running state device (81), hand are automatically switched (82), air duct pressure difference switch
(83) and frequency conversion fault monitoring device (84)；The operating status of the new blower of monitoring running state device (81) on-line monitoring
Data, the hand are automatically switched the status data of (82), the status data of the air duct pressure difference switch (83), the frequency conversion failure
The frequency conversion fault data of monitoring device (84) on-line checking sends the main control unit to by the digital quantity input unit (8)
(1) and then the main control unit (1) is made to issue corresponding control instruction.
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| CN111678248B (en) * | 2020-06-19 | 2021-12-07 | 广东美的暖通设备有限公司 | Operation control method for air conditioning equipment, air conditioning equipment and storage medium |
| CN114791141B (en) * | 2021-01-25 | 2024-03-15 | 浙江盾安人工环境股份有限公司 | Control method and device of fresh air system, electronic device and computer equipment |
| CN114151919B (en) * | 2021-11-29 | 2023-02-10 | 宁波奥克斯电气股份有限公司 | Fresh air control method and device and fresh air conditioner |
| CN114237032B (en) * | 2021-12-14 | 2024-02-20 | 中国船舶重工集团公司第七0三研究所 | Clean air conditioner temperature control method based on Fuzzy-PID intelligent control |
| CN115164369A (en) * | 2022-06-15 | 2022-10-11 | 华为数字能源技术有限公司 | Fresh air volume control method and device of air conditioning system |
| CN115200131B (en) * | 2022-07-25 | 2023-05-16 | 贵州汇通华城股份有限公司 | Subway station ventilation air conditioning air system control method and device |
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| RU2089791C1 (en) * | 1993-10-15 | 1997-09-10 | Дойче Эйроспейс Эйрбус ГмбХ | Cabin ventilation system for air-conditioning of passenger aircraft fuselage compartments |
| CN1255655C (en) * | 2002-11-22 | 2006-05-10 | Lg电子株式会社 | Air conditioner and method for controlling electronic expansion valve of same |
| CN201126229Y (en) * | 2007-10-29 | 2008-10-01 | 广州大学 | Energy-saving controller of automatic aeration air-conditioner |
| CN203785179U (en) * | 2014-02-08 | 2014-08-20 | 泰豪科技股份有限公司 | Fresh air energy saving control device |
| US9890969B2 (en) * | 2012-01-09 | 2018-02-13 | Intwine Connect, Llc | Networked air quality monitoring |
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| RU2089791C1 (en) * | 1993-10-15 | 1997-09-10 | Дойче Эйроспейс Эйрбус ГмбХ | Cabin ventilation system for air-conditioning of passenger aircraft fuselage compartments |
| CN1255655C (en) * | 2002-11-22 | 2006-05-10 | Lg电子株式会社 | Air conditioner and method for controlling electronic expansion valve of same |
| CN201126229Y (en) * | 2007-10-29 | 2008-10-01 | 广州大学 | Energy-saving controller of automatic aeration air-conditioner |
| US9890969B2 (en) * | 2012-01-09 | 2018-02-13 | Intwine Connect, Llc | Networked air quality monitoring |
| CN203785179U (en) * | 2014-02-08 | 2014-08-20 | 泰豪科技股份有限公司 | Fresh air energy saving control device |
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