CN106440262A - Control method and device of air conditioning unit - Google Patents
Control method and device of air conditioning unit Download PDFInfo
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- CN106440262A CN106440262A CN201611062746.0A CN201611062746A CN106440262A CN 106440262 A CN106440262 A CN 106440262A CN 201611062746 A CN201611062746 A CN 201611062746A CN 106440262 A CN106440262 A CN 106440262A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004378 air conditioning Methods 0.000 title claims abstract description 18
- 238000005057 refrigeration Methods 0.000 claims description 28
- 241000208340 Araliaceae Species 0.000 claims description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 235000008434 ginseng Nutrition 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 7
- 230000003068 static effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
- F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
-
- 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
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The embodiment of the invention discloses a control method and a control device of an air conditioning unit, and relates to the field of combined air conditioning units. The method comprises the following steps: acquiring working environment state parameters of an air conditioning unit, wherein the working environment state parameters at least comprise outdoor fresh air temperature; and controlling the fresh air volume entering the air conditioning unit according to the working environment state parameters. The control method and the device for the air conditioning unit provided by the embodiment of the invention realize automatic regulation and control of fresh air volume according to different working environments of the air conditioning unit, so that fresh air is utilized as a cold source or a heat source to the maximum extent, and the problem of waste of the air conditioning unit in energy consumption is solved.
Description
Technical field
The present embodiments relate to unitary air handling unit field, more particularly, to a kind of control method of air-conditioner set and dress
Put.
Background technology
Unitary air handling unit is a kind of airhandling equipment being assembled by various air-treatment function sections.It is applied to
Resistance is more than the air-conditioning system of 100Pa.Fig. 1 is the structural representation of unitary air handling unit in prior art, referring to Fig. 1, should
The operation principle of unit substantially can be described as:Fresh air and return air pass through fresh wind tube 20 and backwind tube 10 respectively in new air-valve 21 He
Enter mixing section 31 under the control of air returning valve 11 to be mixed, mixed gas carries out ash respectively through first medium efficiency filtration section 32
The filtration of dirt, the cooling of surface cooling section 33 and dehumidifying, the heating of bringing-up section 34, the anti-frost protection of low temperature antifreeze protector 35, humidification
The humidification of section 36, and high efficiency particulate air filter 37 carries out the filtration again of dust.Finally, fan section 38 is to the constant temperature and humidity generating
Gas is sent out by ajutage 40.
Inventor finds that during realizing the present invention defect of prior art is:In existing unitary air handling unit
Control to resh air requirement is mainly set it is impossible to be adapted to carry out real-time regulation under complicated operating mode by initial design values,
That is, in actual moving process, fresh air valve is in a relatively-stationary aperture state all the time.Thus leading to be unable to maximum journey
Degree makees low-temperature receiver or thermal source using fresh air, makes air-conditioner set there is certain waste in energy consumption.
Content of the invention
The embodiment of the present invention provides a kind of control method of air-conditioner set and device, to realize the difference according to air-conditioner set
Working environment carries out the auto-adjustment control of resh air requirement, thus farthest making low-temperature receiver or thermal source using fresh air, solves air-conditioning
The problem that unit wastes in energy consumption.
In a first aspect, embodiments providing a kind of control method of air-conditioner set, the method includes:
Obtain the working environment state parameter of air-conditioner set, wherein, described working environment state parameter at least includes outdoor
New air temperature;
According to described working environment state parameter, the resh air requirement entering air-conditioner set is controlled.
Second aspect, the embodiment of the present invention additionally provides a kind of control device of air-conditioner set, and this device includes:
Parameter acquisition module, for obtaining the working environment state parameter of air-conditioner set, wherein, described working environment state
Parameter at least includes outdoor fresh air temperature;
Boiler pressure control module, for according to described working environment state parameter, carrying out to the resh air requirement entering air-conditioner set
Control.
The embodiment of the present invention is passed through at least to include the working environment state parameter of outdoor fresh air temperature, to entrance air-conditioner set
Resh air requirement be controlled, realize resh air requirement being automatically adjusted control according to the different operating environment of air-conditioner set, thus
Farthest make low-temperature receiver or thermal source using fresh air, solve the problems, such as that air-conditioner set wastes in energy consumption.
Brief description
Fig. 1 is the structural representation of unitary air handling unit in prior art;
Fig. 2 is a kind of flow chart of the control method of air-conditioner set that the embodiment of the present invention one provides;
Fig. 3 is a kind of flow chart of the control method of air-conditioner set that the embodiment of the present invention two provides;
Fig. 4 is a kind of flow chart of the control method of air-conditioner set that the embodiment of the present invention three provides;
Fig. 5 is a kind of flow chart of the control method of air-conditioner set that the embodiment of the present invention four provides;
Fig. 6 is a kind of flow chart of the control method of air-conditioner set that the embodiment of the present invention five provides;
Fig. 7 is the flow chart of the control method of another kind of air-conditioner set that the embodiment of the present invention five provides;
Fig. 8 is a kind of structural representation of the control device of air-conditioner set that the embodiment of the present invention six provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention rather than entire infrastructure is illustrate only in description, accompanying drawing.
Embodiment one
Fig. 2 is a kind of flow chart of the control method of air-conditioner set that the embodiment of the present invention one provides.The present embodiment can be fitted
For the situation that the resh air requirement of air-conditioner set is controlled, the method can be held by a kind of control device of air-conditioner set
OK, this device can be realized by software and/or hardware.Referring to Fig. 2, the control method of air-conditioner set provided in an embodiment of the present invention
Including:
S110, the working environment state parameter of acquisition air-conditioner set, wherein, described working environment state parameter at least includes
Outdoor fresh air temperature.
Wherein, working environment state parameter can include the relevant operating parameter in air-conditioner set, for example, air-conditioner set
Working condition, the temperature of change working set point, indoor temperature, wind pushing temperature, air-supply absolute moisture content, indoor absolute moisture content
Enthalpy with change working set point;Working environment state parameter can also include the ambient condition parameter outside air-conditioner set, example
As outdoor fresh air temperature, outdoor fresh air absolute moisture content and outdoor fresh air enthalpy.It should be noted that, the work of air-conditioner set
State can include:Freeze, heat and divulge information.
Specifically, the enthalpy of the temperature of change working set point and change working set point can be according to the need of different operating modes
Set;Indoor temperature and indoor absolute moisture content can be passed by the temperature sensor being arranged on backwind tube and humidity respectively
Sensor detection obtains;Outdoor fresh air temperature and outdoor fresh air absolute moisture content can be respectively by the TEMPs being arranged on fresh wind tube
Device and humidity sensor detection obtain;In the same manner, wind pushing temperature and air-supply absolute moisture content can be respectively by being arranged on ajutage
Temperature sensor and humidity sensor detection obtain;Outdoor fresh air enthalpy represents the gross energy containing in outdoor fresh air, Ke Yiyou
Outdoor fresh air temperature and outdoor fresh air absolute moisture content determine.
S120, according to described working environment state parameter, the resh air requirement entering air-conditioner set is controlled.
Wherein, according to described working environment state parameter, the mode that the resh air requirement entering air-conditioner set is controlled can
To be:Working environment state parameter according to any one group, is controlled to the resh air requirement entering air-conditioner set, typically,
If outdoor fresh air temperature is in the comfortable temperature range of human body sensory (for example, between 21 degrees Celsius to 25 degrees Celsius), then will be new
Air-valve leaves to maximum, farthest to utilize fresh air.Optionally, according to described working environment state parameter, to entrance air-conditioning
The mode that the resh air requirement of unit is controlled can also be:Working environment state parameter arbitrarily at least described in two groups is compared
Relatively, according to comparative result, the resh air requirement entering air-conditioner set is controlled;According to described working environment state parameter, to entrance
The mode that the resh air requirement of air-conditioner set is controlled can also be:In above-mentioned working environment state parameter arbitrarily at least described in two groups
Increase the restriction of the different working condition to air-conditioner set on the basis of being compared, for example, be operated in refrigeration in air-conditioner set
Working condition under, outdoor fresh air temperature and indoor temperature are compared, or, outdoor fresh air enthalpy and change working are set
The enthalpy of fixed point is compared, and according to comparative result, the resh air requirement entering air-conditioner set and return air amount is controlled.
The technical scheme of the embodiment of the present invention is by least including the working environment state parameter of outdoor fresh air temperature, right
The resh air requirement entering air-conditioner set is controlled, and realizes according to the different operating environment of air-conditioner set, resh air requirement being adjusted automatically
Section controls, thus farthest making low-temperature receiver or thermal source using fresh air, solves the problems, such as that air-conditioner set wastes in energy consumption.
Typically, in the refrigeration case, for avoiding the higher fresh air of temperature to increase air conditioner load, according to described building ring
Border state parameter, is controlled including to the resh air requirement entering air-conditioner set:
If described working condition is refrigeration, and described outdoor fresh air temperature is more than the room in described working environment state parameter
Interior temperature, or, if described working condition is refrigeration, and it is more than according to the outdoor fresh air enthalpy that described outdoor fresh air temperature determines
The enthalpy of the change working set point in described working environment state parameter, then close new air-valve or open to minimum aperture, and
Air returning valve is opened to maximum opening.
Wherein, the enthalpy of change working set point is the enthalpy being configured according to the needs of different operating modes, specifically, on
Stating change working set point can be to start refrigeration conversion set point, and even room air enthalpy is more than to start to freeze to change and sets
The enthalpy of point, then air-conditioner set startup refrigeration work state.The outdoor fresh air enthalpy that described outdoor fresh air temperature determines is more than institute
The enthalpy stating the change working set point in working environment state parameter illustrates that the gross energy of outdoor fresh air sets more than change working
The gross energy of the in the air of fixed point.
Further, for realizing the utilization of the absolute moisture content to outdoor fresh air simultaneously, to realize temperature is being adjusted
While section, indoor humidity is reasonably adjusted, if described working condition is refrigeration, and described outdoor fresh air temperature is more than
Indoor temperature in described working environment state parameter, then by new air-valve close or open to minimum aperture, and by air returning valve open to
Maximum opening can include:
If described working condition is refrigeration, described outdoor fresh air temperature is more than the interior in described working environment state parameter
Outdoor fresh air absolute moisture content in temperature, and described working environment state parameter is less than or equal to described working environment state parameter
In indoor absolute moisture content, then new air-valve is closed or opens to minimum aperture, and air returning valve is opened to maximum opening.
Optionally, for realizing the utilization of the absolute moisture content to outdoor fresh air simultaneously, to realize temperature is being adjusted
While humidity is reasonably adjusted, if described working condition be refrigeration, and according to described outdoor fresh air temperature determine
Outdoor fresh air enthalpy be more than described working environment state parameter in change working set point enthalpy, then by new air-valve close or
Open to minimum aperture, and air returning valve is opened include to maximum opening:
If described working condition is refrigeration, described work is more than according to the outdoor fresh air enthalpy that described outdoor fresh air temperature determines
The outdoor fresh air made in the enthalpy of the change working set point in ambient condition parameter, and described working environment state parameter is absolute
Water capacity is more than the indoor absolute moisture content in described working environment state parameter, then new air-valve is closed or opened and open to minimum
Degree, and air returning valve is opened to maximum opening.
For enabling blower fan frequency to be automatically adjusted according to air conditioner load well, according to described working condition and described
Working environment state parameter, after the resh air requirement entering air-conditioner set is controlled, can also include:
Obtain and set supply air temperature difference and air conditioner load;
According to described setting supply air temperature difference and/or described air conditioner load, blower fan frequency is adjusted.
Wherein, supply air temperature difference is the difference of indoor temperature and wind pushing temperature;Described air conditioner load is by air-conditioning place room
The estimation of the many factors such as construction area, circulation librarian amount and lighting condition obtains.Specific however, it is determined that described air conditioner load relatively
Greatly, then blower fan frequency can be improved, to meet the requirement of constant indoor temperature.
Further, according to described setting supply air temperature difference and described air conditioner load, blower fan frequency is adjusted wrapping
Include:
According to the Relation acquisition air output setting supply air temperature difference, described air conditioner load and described air output three, wherein, institute
The relation of stating is:
G=QR/ [ρ * cp* (tn–to)]
G is air output, QRFor air conditioner load, (tn–to) for setting supply air temperature difference, tnFor indoor temperature, toFor wind pushing temperature,
ρ and cpIt is constant, the respectively density of air and specific heat at constant pressure;
The blower fan frequency being determined according to the air output obtaining;
According to described blower fan frequency, blower fan is controlled.
It is understood that the above-mentioned method that blower fan is controlled can reach such a effect:According to obtain
Air output determines blower fan frequency, then can realize the blower fan frequency of blower fan is accurately adjusted according to the blower fan frequency determining
Section.
Embodiment two
Fig. 3 is a kind of flow chart of the control method of air-conditioner set that the embodiment of the present invention two provides.The present embodiment is upper
State the alternative that the situation being refrigeration to the working condition of air-conditioner set on the basis of embodiment proposes, referring to Fig. 3, this enforcement
The control method of the air-conditioner set that example provides includes:
S210, the working environment state parameter of acquisition air-conditioner set, wherein, working environment state parameter at least includes work
State, outdoor fresh air temperature, indoor temperature, outdoor fresh air enthalpy, the enthalpy of change working set point, outdoor fresh air definitely contain wet
Amount and indoor absolute moisture content.
If the described working condition of S220 is refrigeration, described outdoor fresh air temperature is more than indoor temperature, and outdoor fresh air is absolute
Water capacity is less than or equal to indoor absolute moisture content, then close new air-valve or open to minimum aperture, and air returning valve is opened to maximum
Aperture, or
If described working condition is refrigeration, outdoor fresh air enthalpy is more than the enthalpy of change working set point, and outdoor fresh air
Absolute moisture content is more than indoor absolute moisture content, then close new air-valve or open to minimum aperture, and air returning valve is opened to maximum
Aperture.
The technical scheme of the embodiment of the present invention, on the basis of comparing in relevant temperature or corresponding enthalpy, increases to room
Outer fresh air absolute moisture content and the comparison of indoor absolute moisture content, thus realize using outdoor fresh air simultaneously to indoor temperature and room
The regulation of interior humidity, it is to avoid the inflow of the big higher fresh air of amount temperature leads to the increase of air conditioner load, thus solving air-conditioner set
The problem wasting in energy consumption.
Embodiment three
Fig. 4 is a kind of flow chart of the control method of air-conditioner set that the embodiment of the present invention three provides.The present embodiment is upper
Stating on the basis of embodiment to the working condition of air-conditioner set is a kind of alternative that situation about heating proposes, referring to Fig. 4, this
The control method of the air-conditioner set that embodiment provides includes:
S310, the working environment state parameter of acquisition air-conditioner set, wherein, working environment state parameter at least includes outdoor
New air temperature, outdoor fresh air absolute moisture content, outdoor fresh air enthalpy, new air-valve maximum opening, new air-valve minimum aperture, air returning valve
Maximum opening, air returning valve minimum aperture, the enthalpy of change working set point, indoor temperature and indoor absolute moisture content.
Specifically, new air-valve maximum opening, new air-valve minimum aperture, air returning valve maximum opening and air returning valve minimum aperture can
To be set as needed.For realizing the linkage adjustment of new air-valve and air returning valve, preferably fresh air valve opening and air returning valve are opened
There is certain numerical value relation in degree, for example, new air-valve maximum opening+air returning valve minimum aperture=1, and new air-valve minimum aperture+return
Air-valve maximum opening=1.
If the described working condition of S320 is to heat, and described outdoor fresh air temperature is less than indoor temperature, and/or, outdoor new
Wind absolute moisture content is less than or equal to indoor absolute moisture content, then determine fresh air valve opening according to logic of propositions, wherein, described default
Logic is:
Fresh air valve opening=((outdoor fresh air enthalpy-air returning valve minimum aperture)/(enthalpy-return air of change working set point
Valve minimum aperture) * (new air-valve maximum opening-new air-valve minimum aperture)+new air-valve minimum aperture) %.
The technical scheme of the embodiment of the present invention, by being to heat in working order, and described outdoor fresh air temperature is less than room
Interior temperature, and/or, on the premise of outdoor fresh air absolute moisture content is less than or equal to indoor absolute moisture content, according to outdoor fresh air enthalpy
Value, the enthalpy of change working set point, new air-valve minimum aperture, new air-valve maximum opening and air returning valve minimum aperture determine fresh air
Valve opening, thus realize the control to the resh air requirement entering air-conditioner set, it is to avoid the inflow of the big relatively low fresh air of amount temperature leads to
The increase of air conditioner load, to solve the problems, such as that air-conditioner set wastes in energy consumption.
Example IV
Fig. 5 is a kind of flow chart of the control method of air-conditioner set that the embodiment of the present invention four provides.The present embodiment is upper
A kind of alternative proposing on the basis of stating embodiment, the control method bag of the air-conditioner set providing referring to Fig. 5, the present embodiment
Include:
S410, the working environment state parameter of acquisition air-conditioner set, wherein, working environment state parameter at least includes outdoor
New air temperature, the temperature of change working set point, indoor temperature, outdoor fresh air enthalpy, the enthalpy of change working set point, outdoor
Fresh air absolute moisture content and indoor absolute moisture content.
If S420 described outdoor fresh air temperature is more than the temperature of change working set point, and described outdoor fresh air temperature is little
In equal to indoor temperature, then new air-valve is opened to maximum opening, and air returning valve is closed or opens to minimum aperture, wherein, operating mode
The temperature of conversion set point determines according to described indoor temperature;Or,
If be less than or equal to the enthalpy of change working set point by the outdoor fresh air enthalpy that described outdoor fresh air temperature determines, and
Outdoor fresh air absolute moisture content is more than indoor absolute moisture content, then open new air-valve to maximum opening, and air returning valve is closed or
Open to minimum aperture.
Wherein, the temperature of described change working set point determines according to described indoor temperature, typically could be arranged to and room
The temperature value of interior temperature close, for example, indoor temperature is 27 degrees Celsius, and the temperature of described change working set point could be arranged to
20 degrees Celsius.Specifically, described change working set point can be the set point that working condition is converted to ventilation.
If it is contemplated that above-mentioned described outdoor fresh air temperature is more than the temperature of change working set point, and described room
New air temperature is less than or equal to indoor temperature outward, and if being less than or equal to by the outdoor fresh air enthalpy that described outdoor fresh air temperature determines
The enthalpy of change working set point, and outdoor fresh air absolute moisture content is more than two term restrictions of indoor absolute moisture content air-conditioning
A kind of as follows working environment of unit:Outdoor fresh air temperature is slightly below indoor temperature, now can be realized to interior by ventilation
The regulation of temperature, typically, described environment can occur when spring, autumn, summer or three's Growth season replace, rain rear chamber
New air temperature is slightly below indoor temperature outward, and outdoor fresh air absolute moisture content is more than the situation of indoor water capacity.
The working environment of air-conditioner set is limited to by the technical scheme of the embodiment of the present invention by working environment state parameter
Outdoor fresh air temperature is slightly below the situation of indoor temperature, and opens new air-valve to maximum opening in this case, is made using fresh air
Low-temperature receiver realizes the regulation to indoor temperature.
For realizing the utilization of the absolute moisture content to outdoor fresh air simultaneously, if described outdoor fresh air temperature is more than described work
The temperature of the change working set point in ambient condition parameter, and described outdoor fresh air temperature is less than or equal to described working environment shape
Indoor temperature in state parameter, then open new air-valve to maximum opening, and air returning valve is closed or opens and can wrap to minimum aperture
Include:
If described outdoor fresh air temperature is more than the temperature of the change working set point in described working environment state parameter, institute
State the indoor temperature that outdoor fresh air temperature is less than or equal in described working environment state parameter, and described working environment state parameter
In outdoor fresh air absolute moisture content be less than or equal to described working environment state parameter in indoor absolute moisture content, then by fresh air
Valve leaves to maximum opening, and air returning valve is closed or opens to minimum aperture.
Embodiment five
Fig. 6 is a kind of flow chart of the control method of air-conditioner set that the embodiment of the present invention five provides.The present embodiment is upper
A kind of alternative proposing on the basis of stating embodiment, the control method bag of the air-conditioner set providing referring to Fig. 6, the present embodiment
Include:
S510, the working environment state parameter of acquisition air-conditioner set, wherein, described working environment state parameter at least includes
Outdoor fresh air temperature.
S520, according to described working environment state parameter, the resh air requirement entering air-conditioner set is controlled.
S530, acquisition set supply air temperature difference and air conditioner load.
Wherein, supply air temperature difference is the temperature difference of indoor temperature and wind pushing temperature, can be according to the building sides in air-conditioning place room
Long-pending and/or user's request is set;Described air conditioner load is by the construction area in air-conditioning place room, circulation librarian amount and illumination
The estimation of the many factors such as situation obtains.
S540, according to described setting supply air temperature difference and described air conditioner load blower fan frequency is adjusted.
Specific however, it is determined that described air conditioner load larger, then can improve blower fan frequency, will with meet constant indoor temperature
Ask.
Typically, according to the Relation acquisition air output setting supply air temperature difference, described air conditioner load and described air output three,
Wherein, described relation is:
G=QR/ [ρ * cp* (tn–to)]
G is air output, QRFor air conditioner load, (tn–to) for setting supply air temperature difference, tnFor indoor temperature, toFor wind pushing temperature,
ρ and cpIt is constant, the respectively density of air and specific heat at constant pressure;
The blower fan frequency being determined according to the air output obtaining;
According to described blower fan frequency, blower fan is controlled.
Fig. 7 is the flow chart of the control method of another kind of air-conditioner set that the embodiment of the present invention five provides.Referring to Fig. 7,
In practical application, the control method of air-conditioner set can be described as:Relatively tw、tfAnd tn, dwAnd dn, iwAnd if, wherein, twFor room
New air temperature, t outwardfFor the temperature of change working set point, tnFor indoor temperature, toFor wind pushing temperature, dwAbsolute for outdoor fresh air
Water capacity, dnFor indoor absolute moisture content, iwFor outdoor fresh air enthalpy, ifEnthalpy for change working set point;In air-conditioner set
Working condition be refrigeration when, if t is detectedw> tn, dw≤dnOr iw> if, dw> dn, that is, outdoor fresh air temperature is more than Indoor Temperature
Degree, and outdoor fresh air absolute moisture content is less than or equal to indoor absolute moisture content, then new air-valve is opened to minimum aperture, air returning valve open to
Maximum opening;When the working condition of air-conditioner set is to heat, if t is detectedw≤tf, dw≤dn, that is, outdoor fresh air temperature be less than
Indoor temperature, and/or, outdoor fresh air absolute moisture content is less than or equal to indoor absolute moisture content, then fresh air valve opening is according to default
Logic carries out the regulation in the range of " minimum aperture is to maximum opening ", and wherein, described logic of propositions is:
Fresh air valve opening=((outdoor fresh air enthalpy-air returning valve minimum aperture)/(enthalpy-return air of change working set point
Valve minimum aperture) * (new air-valve maximum opening-new air-valve minimum aperture)+new air-valve minimum aperture) %;If t is detectedf< tw≤
tn, dw≤dnOr iw≤if, dw> dn, that is, more than the temperature of change working set point, outdoor fresh air temperature is little for outdoor fresh air temperature
In equal to indoor temperature, and outdoor fresh air absolute moisture content is less than or equal to indoor absolute moisture content, or, outdoor fresh air enthalpy is little
In the enthalpy equal to change working set point, and outdoor fresh air absolute moisture content is more than indoor absolute moisture content, then new air-valve is opened
To maximum opening, air returning valve is opened to minimum aperture;After new air-valve and return air valve opening are adjusted, during according to delayed startup
Between complete the startup to blower fan;After blower fan completes to start, the air-supply static pressure according to setting is adjusted to blower fan frequency;When
When blower fan frequency is adjusted to air-supply static pressure satisfaction air-supply static pressure setting value, air-conditioner set startup completes;After unit completes to start,
According to the indoor temperature detecting and indoor humidity use ratio integral-differential, algorithm, cooling coil, hot coil and humidifier are carried out
Adjust;By being compared actual measurement supply air temperature difference with supply air temperature difference setting value, determine the variable frequency adjustment amount of blower fan, specifically,
According to G=QR/[ρ*cp)(tn–to)], work as QRDuring change, by adjusting blower fan frequency, G can be adjusted, make (tn-to) protect
Hold constant, wherein, QRFor air conditioner load, G be air output, ρ be the density of air, cpFor specific heat at constant pressure, (tn-to) warm for air-supply
Difference.In annual control program, with season and power condition changing, winter and summer value are larger, mistake for the setting value of supply air temperature difference
Cross season suitably to turn down.Meanwhile, above-mentioned utilization supply air temperature difference realization can be according to air conditioner load to the control method of blower fan frequency
Change carries out real-time regulation, compares traditional method according to air-supply static pressure regulating frequency more energy efficient, more effectively.
The technical scheme of the embodiment of the present invention, by air output is determined according to setting supply air temperature difference and air conditioner load, then
Air output according to determining is adjusted to blower fan frequency, thus the change realized according to air conditioner load is real-time to blower fan frequency
Adjust.
Embodiment six
Fig. 8 is a kind of structural representation of the control device of air-conditioner set that the embodiment of the present invention six provides.Referring to Fig. 8,
The control device of the air-conditioner set that the present embodiment provides includes:Parameter acquisition module 10 and Boiler pressure control module 20.
Wherein, parameter acquisition module 10, for obtaining the working environment state parameter of air-conditioner set, wherein, described work
Ambient condition parameter at least includes outdoor fresh air temperature;Boiler pressure control module 20, for according to described working environment state parameter,
The resh air requirement entering air-conditioner set is controlled.
The technical scheme of the embodiment of the present invention is by least including the working environment state parameter of outdoor fresh air temperature, right
The resh air requirement entering air-conditioner set is controlled, and realizes according to the different operating environment of air-conditioner set, resh air requirement being adjusted automatically
Section controls, thus farthest making low-temperature receiver or thermal source using fresh air, solves the problems, such as that air-conditioner set wastes in energy consumption.
Further, Boiler pressure control module 20 includes:First Boiler pressure control unit.
Wherein, the first Boiler pressure control unit, if being refrigeration for described working condition, and described outdoor fresh air temperature is more than
Indoor temperature in described working environment state parameter, or, if described working condition is refrigeration, and according to described outdoor fresh air
The outdoor fresh air enthalpy that temperature determines is more than the enthalpy of the change working set point in described working environment state parameter, then will be new
Air-valve cuts out or opens to minimum aperture, and air returning valve is opened to maximum opening.
Further, the first Boiler pressure control unit includes:First Boiler pressure control subelement.
Wherein, the first Boiler pressure control subelement, if being refrigeration for described working condition, described outdoor fresh air temperature is more than
Outdoor fresh air absolute moisture content in indoor temperature in described working environment state parameter, and described working environment state parameter
Less than or equal to the indoor absolute moisture content in described working environment state parameter, then new air-valve is closed or opens to minimum aperture,
And open air returning valve to maximum opening.
Further, the first Boiler pressure control unit includes:Second Boiler pressure control subelement.
Wherein, the second Boiler pressure control subelement, if being refrigeration for described working condition, according to described outdoor fresh air temperature
The outdoor fresh air enthalpy determining is more than the enthalpy of the change working set point in described working environment state parameter, and described work
Outdoor fresh air absolute moisture content in ambient condition parameter is more than the indoor absolute moisture content in described working environment state parameter,
Then new air-valve is closed or open to minimum aperture, and air returning valve is opened to maximum opening.
Further, Boiler pressure control module 20 includes:Second Boiler pressure control unit.
Wherein, the second Boiler pressure control unit, if being to heat for described working condition, and described outdoor fresh air temperature is less than
Indoor temperature in described working environment state parameter, and/or, the outdoor fresh air in described working environment state parameter definitely contains
Moisture is less than or equal to the indoor absolute moisture content in described working environment state parameter, then determine that new air-valve is opened according to logic of propositions
Degree, wherein, described logic of propositions is:
Fresh air valve opening=((outdoor fresh air enthalpy-air returning valve minimum aperture)/(enthalpy-return air of change working set point
Valve minimum aperture) * (new air-valve maximum opening-new air-valve minimum aperture)+new air-valve minimum aperture) %.
Further, Boiler pressure control module 20 includes:3rd Boiler pressure control unit.
Wherein, the 3rd Boiler pressure control unit, if be more than described working environment state parameter for described outdoor fresh air temperature
In change working set point temperature, and described outdoor fresh air temperature be less than or equal to described working environment state parameter in room
Interior temperature, then open new air-valve to maximum opening, and air returning valve is closed or opens to minimum aperture, and wherein, change working sets
The temperature of point determines according to described indoor temperature;Or,
If being less than or equal in described working environment state parameter by the outdoor fresh air enthalpy that described outdoor fresh air temperature determines
Change working set point enthalpy, and the outdoor fresh air absolute moisture content in described working environment state parameter be more than described work
Make the indoor absolute moisture content in ambient condition parameter, then open new air-valve to maximum opening, and by air returning valve close or open to
Minimum aperture.
Further, the 3rd Boiler pressure control unit includes:3rd Boiler pressure control subelement.
Wherein, the 3rd Boiler pressure control subelement, if be more than described working environment state ginseng for described outdoor fresh air temperature
The temperature of the change working set point in number, described outdoor fresh air temperature is less than or equal to the room in described working environment state parameter
Outdoor fresh air absolute moisture content in interior temperature, and described working environment state parameter is less than or equal to described working environment state ginseng
Indoor absolute moisture content in number, then open new air-valve to maximum opening, and air returning valve is closed or opens to minimum aperture.
Further, the control device of described air-conditioner set also includes:Parameter determination module and frequency adjustment module.
Wherein, parameter determination module, for according to described working condition and described working environment state parameter, to entrance
After the resh air requirement of air-conditioner set is controlled, obtains and set supply air temperature difference and air conditioner load;
Frequency adjustment module, for adjusting to blower fan frequency according to described setting supply air temperature difference and described air conditioner load
Section.
Further, frequency adjustment module includes:Air output acquiring unit, blower fan frequency determinative elements and air-blower control list
Unit.
Wherein, air output acquiring unit, for according to setting supply air temperature difference, described air conditioner load and described air output three
Relation acquisition air output, wherein, described relation is:
G=QR/ [ρ * cp* (tn–to)]
G is air output, QRFor air conditioner load, (tn–to) for setting supply air temperature difference, tnFor indoor temperature, toFor wind pushing temperature,
ρ and cpIt is constant, the respectively density of air and specific heat at constant pressure;Blower fan frequency determinative elements, for according to the air-supply obtaining
The blower fan frequency that amount determines;Air-blower control unit, for being controlled to blower fan according to described blower fan frequency.
The said goods can perform the method that any embodiment of the present invention is provided, and possesses the corresponding functional module of execution method
And beneficial effect.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (18)
1. a kind of control method of air-conditioner set is it is characterised in that include:
Obtain the working environment state parameter of air-conditioner set, wherein, described working environment state parameter at least includes outdoor fresh air
Temperature;
According to described working environment state parameter, the resh air requirement entering air-conditioner set is controlled.
2. method according to claim 1 is it is characterised in that according to described working environment state parameter, to entering air-conditioning
The resh air requirement of unit be controlled including:
If described working condition is refrigeration, and described outdoor fresh air temperature is more than the Indoor Temperature in described working environment state parameter
Degree, or, if described working condition is refrigeration, and it is more than described according to the outdoor fresh air enthalpy of described outdoor fresh air temperature determination
The enthalpy of the change working set point in working environment state parameter, then close new air-valve or open to minimum aperture, and will return
Air-valve leaves to maximum opening.
If 3. method according to claim 2 is it is characterised in that described working condition is refrigeration, and described outdoor fresh air
Temperature is more than the indoor temperature in described working environment state parameter, then close new air-valve or open to minimum aperture, and will return
Air-valve leaves and includes to maximum opening:
If described working condition is refrigeration, described outdoor fresh air temperature is more than the Indoor Temperature in described working environment state parameter
Degree, and the outdoor fresh air absolute moisture content in described working environment state parameter is less than or equal in described working environment state parameter
Indoor absolute moisture content, then new air-valve is closed or opens to minimum aperture, and air returning valve is opened to maximum opening.
4. if method according to claim 2 is it is characterised in that described working condition is refrigeration, and according to described outdoor
The outdoor fresh air enthalpy that new air temperature determines is more than the enthalpy of the change working set point in described working environment state parameter, then
New air-valve is closed or opens to minimum aperture, and air returning valve is opened include to maximum opening:
If described working condition is refrigeration, described building ring is more than according to the outdoor fresh air enthalpy that described outdoor fresh air temperature determines
Outdoor fresh air in the enthalpy of the change working set point in the state parameter of border, and described working environment state parameter definitely contains wet
New air-valve more than the indoor absolute moisture content in described working environment state parameter, is then closed or is opened to minimum aperture by amount, and
Air returning valve is opened to maximum opening.
5. method according to claim 1 is it is characterised in that according to described working environment state parameter, to entering air-conditioning
The resh air requirement of unit be controlled including:
If described working condition is to heat, and described outdoor fresh air temperature is less than the Indoor Temperature in described working environment state parameter
Degree, and/or, the outdoor fresh air absolute moisture content in described working environment state parameter is less than or equal to described working environment state ginseng
Indoor absolute moisture content in number, then determine fresh air valve opening according to logic of propositions, and wherein, described logic of propositions is:
Fresh air valve opening=((outdoor fresh air enthalpy-air returning valve minimum aperture)/(enthalpy-air returning valve of change working set point is
Small guide vane) * (new air-valve maximum opening-new air-valve minimum aperture)+new air-valve minimum aperture) %.
6. method according to claim 1 is it is characterised in that according to described working environment state parameter, to entering air-conditioning
The resh air requirement of unit be controlled including:
If described outdoor fresh air temperature is more than the temperature of the change working set point in described working environment state parameter, and described
Outdoor fresh air temperature is less than or equal to the indoor temperature in described working environment state parameter, then open new air-valve to maximum opening,
And by air returning valve closing or open to minimum aperture, wherein, the temperature of change working set point determines according to described indoor temperature;Or
Person,
If the work being less than or equal to by the outdoor fresh air enthalpy that described outdoor fresh air temperature determines in described working environment state parameter
Condition changes the enthalpy of set point, and the outdoor fresh air absolute moisture content in described working environment state parameter is more than described building ring
Indoor absolute moisture content in the state parameter of border, then open new air-valve to maximum opening, and air returning valve is closed or opens to minimum
Aperture.
If 7. method according to claim 6 is it is characterised in that described outdoor fresh air temperature is more than described working environment shape
The temperature of the change working set point in state parameter, and described outdoor fresh air temperature is less than or equal to described working environment state parameter
In indoor temperature, then new air-valve is opened to maximum opening, and air returning valve is closed or opens and include to minimum aperture:
If described outdoor fresh air temperature is more than the temperature of the change working set point in described working environment state parameter, described room
New air temperature is less than or equal to the indoor temperature in described working environment state parameter outward, and in described working environment state parameter
Outdoor fresh air absolute moisture content is less than or equal to the indoor absolute moisture content in described working environment state parameter, then open new air-valve
To maximum opening, and air returning valve is closed or opens to minimum aperture.
8. method according to claim 1 is it is characterised in that according to described working condition and described working environment state
Parameter, after the resh air requirement entering air-conditioner set is controlled, also includes:
Obtain and set supply air temperature difference and air conditioner load;
According to described setting supply air temperature difference and described air conditioner load, blower fan frequency is adjusted.
9. method according to claim 8 is it is characterised in that set supply air temperature difference and described air conditioner load pair according to described
Blower fan frequency be adjusted including:
According to the Relation acquisition air output setting supply air temperature difference, described air conditioner load and described air output three, wherein, described pass
It is to be:
G=QR/ [ρ * cp* (tn–to)]
G is air output, QRFor air conditioner load, (tn–to) for setting supply air temperature difference, tnFor indoor temperature, toFor wind pushing temperature, ρ and
cpIt is constant, the respectively density of air and specific heat at constant pressure;
The blower fan frequency being determined according to the air output obtaining;
According to described blower fan frequency, blower fan is controlled.
10. a kind of control device of air-conditioner set is it is characterised in that include:
Parameter acquisition module, for obtaining the working environment state parameter of air-conditioner set, wherein, described working environment state parameter
At least include outdoor fresh air temperature;
Boiler pressure control module, for according to described working environment state parameter, being controlled to the resh air requirement entering air-conditioner set.
11. devices according to claim 10 are it is characterised in that Boiler pressure control module includes:
First Boiler pressure control unit, if being refrigeration for described working condition, and described outdoor fresh air temperature is more than described work
Indoor temperature in ambient condition parameter, or, if described working condition is refrigeration, and determined according to described outdoor fresh air temperature
Outdoor fresh air enthalpy be more than described working environment state parameter in change working set point enthalpy, then new air-valve is closed
Or open to minimum aperture, and air returning valve is opened to maximum opening.
12. devices according to claim 11 are it is characterised in that the first Boiler pressure control unit includes:
First Boiler pressure control subelement, if being refrigeration for described working condition, described outdoor fresh air temperature is more than described work
Outdoor fresh air absolute moisture content in indoor temperature in ambient condition parameter, and described working environment state parameter is less than or equal to
Indoor absolute moisture content in described working environment state parameter, then close new air-valve or open to minimum aperture, and by return air
Valve leaves to maximum opening.
13. devices according to claim 11 are it is characterised in that the first Boiler pressure control unit includes:
Second Boiler pressure control subelement, if being refrigeration for described working condition, the room being determined according to described outdoor fresh air temperature
Outer fresh air enthalpy is more than the enthalpy of the change working set point in described working environment state parameter, and described working environment state
Outdoor fresh air absolute moisture content in parameter is more than the indoor absolute moisture content in described working environment state parameter, then by fresh air
Valve cuts out or opens to minimum aperture, and air returning valve is opened to maximum opening.
14. devices according to claim 10 are it is characterised in that Boiler pressure control module includes:
Second Boiler pressure control unit, if being to heat for described working condition, and described outdoor fresh air temperature is less than described work
Indoor temperature in ambient condition parameter, and/or, the outdoor fresh air absolute moisture content in described working environment state parameter is less than
Equal to the indoor absolute moisture content in described working environment state parameter, then fresh air valve opening is determined according to logic of propositions, wherein,
Described logic of propositions is:
Fresh air valve opening=((outdoor fresh air enthalpy-air returning valve minimum aperture)/(enthalpy-air returning valve of change working set point is
Small guide vane) * (new air-valve maximum opening-new air-valve minimum aperture)+new air-valve minimum aperture) %.
15. devices according to claim 10 are it is characterised in that Boiler pressure control module includes:
3rd Boiler pressure control unit, if the operating mode being more than in described working environment state parameter for described outdoor fresh air temperature turns
Change the temperature of set point, and described outdoor fresh air temperature is less than or equal to the indoor temperature in described working environment state parameter, then
New air-valve is opened to maximum opening, and air returning valve is closed or opens to minimum aperture, wherein, the temperature root of change working set point
Determine according to described indoor temperature;Or,
If the work being less than or equal to by the outdoor fresh air enthalpy that described outdoor fresh air temperature determines in described working environment state parameter
Condition changes the enthalpy of set point, and the outdoor fresh air absolute moisture content in described working environment state parameter is more than described building ring
Indoor absolute moisture content in the state parameter of border, then open new air-valve to maximum opening, and air returning valve is closed or opens to minimum
Aperture.
16. devices according to claim 15 are it is characterised in that the 3rd Boiler pressure control unit includes:
3rd Boiler pressure control subelement, if be more than the operating mode in described working environment state parameter for described outdoor fresh air temperature
The temperature of conversion set point, described outdoor fresh air temperature is less than or equal to the indoor temperature in described working environment state parameter, and
Outdoor fresh air absolute moisture content in described working environment state parameter is less than or equal to the room in described working environment state parameter
Interior absolute moisture content, then open new air-valve to maximum opening, and air returning valve is closed or opens to minimum aperture.
17. devices according to claim 10 are it is characterised in that also include:
Parameter determination module, for according to described working condition and described working environment state parameter, to entering air-conditioner set
Resh air requirement be controlled after, obtain and set supply air temperature difference and air conditioner load;
Frequency adjustment module, for being adjusted to blower fan frequency according to described setting supply air temperature difference and described air conditioner load.
18. devices according to claim 17 are it is characterised in that frequency adjustment module includes:
Air output acquiring unit, for obtaining according to the relation setting supply air temperature difference, described air conditioner load and described air output three
Fetch and deliver air quantity, wherein, described relation is:
G=QR/[ρ*cp*(tn–to)]
G is air output, QRFor air conditioner load, (tn–to) for setting supply air temperature difference, tnFor indoor temperature, toFor wind pushing temperature, ρ and
cpIt is constant, the respectively density of air and specific heat at constant pressure;
Blower fan frequency determinative elements, for the blower fan frequency being determined according to the air output obtaining;
Air-blower control unit, for being controlled to blower fan according to described blower fan frequency.
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