CN106091506A - Air-conditioning antifrost method and system - Google Patents
Air-conditioning antifrost method and system Download PDFInfo
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- CN106091506A CN106091506A CN201610390710.9A CN201610390710A CN106091506A CN 106091506 A CN106091506 A CN 106091506A CN 201610390710 A CN201610390710 A CN 201610390710A CN 106091506 A CN106091506 A CN 106091506A
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- conditioning
- air
- dew point
- point temperature
- temperature
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
Abstract
The present invention provides a kind of air-conditioning antifrost method and system.Wherein method includes: obtaining the meteorologic parameter of air-conditioning region, wherein, described meteorologic parameter includes temperature information and the humidity information of described air-conditioning region；The dew point temperature of described air-conditioning region is obtained according to the temperature information in meteorologic parameter and humidity information；The operational factor of air-conditioning is adjusted so that the low-pressure temperature that the operation low pressure of air-conditioning is corresponding is more than or equal to dew point temperature according to dew point temperature.Well air-conditioning is combined with the meteorologic parameter of its region, meteorologic parameter is utilized to calculate the dew point temperature of air-conditioning region, operation of air conditioner is adjusted according to dew point temperature, the low-pressure temperature making the operation low pressure of air-conditioning corresponding is consistently greater than or equal to the dew point temperature of region, so even if air-conditioning is relatively low in temperature, humidity strengthen in the environment of, also not havinging the phenomenon of frosting, air-conditioning frost-free will not result in air-conditioning heat exchange and is deteriorated, and effectively raises the heating effect of air-conditioning.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of air-conditioning antifrost method and system.
Background technology
Traditional air conditioner is the most all confined to the unit real time temperature in infield when being controlled, it is impossible to know air
Humidity and monsoon situation, local climate change is not had foreseeability, all of control be all based on relatively-stationary pattern and
Parameter is run.So cause the air-conditioning can not be with local weather conditions good combination, when, humidity relatively low in temperature strengthens,
The easy frosting of air-conditioning, causes air-conditioning heating poor effect.
Summary of the invention
In consideration of it, be necessary when, humidity relatively low in temperature for traditional air conditioner strengthens, easy frosting, cause air-conditioning heating
The problem of poor effect, it is provided that a kind of air-conditioning antifrost method and system, it is possible to be combined with local climate condition well, prevent
Air-conditioning is relatively low in temperature, humidity relatively big in the case of frosting, improve the heating effect of air-conditioning.
For reaching goal of the invention, it is provided that a kind of air-conditioning antifrost method, described method includes:
Obtaining the meteorologic parameter of air-conditioning region, wherein, described meteorologic parameter includes the temperature of described air-conditioning region
Degree information and humidity information；
Described air-conditioning region is obtained according to the described temperature information in described meteorologic parameter and described humidity information
Dew point temperature；
The operational factor of described air-conditioning is adjusted so that corresponding low of the operation low pressure of described air-conditioning according to described dew point temperature
Pressure temperature is more than or equal to described dew point temperature.
Wherein in an embodiment, the step of the meteorologic parameter of described acquisition air-conditioning region includes:
By the GPRS unit being arranged on described air-conditioning, described air-conditioning is positioned, it is thus achieved that the location of described air-conditioning
Territory；
Networking with local RSMC in region according to described air-conditioning, obtains the institute of described air-conditioning region
State meteorologic parameter.
Wherein in an embodiment, also include:
The preset in advance time obtains the meteorologic parameter of described air-conditioning region, and described meteorologic parameter includes Changes in weather
Information；
The second dew after the first dew point temperature before Changes in weather and Changes in weather is obtained according to described meteorologic parameter
Point temperature；
Judge that described Changes in weather information is the most accurate according to described first dew point temperature and described second dew point temperature；
If described Changes in weather information is accurate, then adjust the operational factor of described air-conditioning according to described second dew point temperature；
If described Changes in weather information is inaccurate, then the operational factor maintaining described air-conditioning is constant.
Wherein in an embodiment, if described Changes in weather information is accurate, then according to described second dew point temperature
The step of the operational factor adjusting described air-conditioning includes:
The running frequency of the compressor of described air-conditioning is adjusted so that the operation of described air-conditioning according to described second dew point temperature
Low-pressure temperature corresponding to low pressure is more than or equal to described second dew point temperature.
Wherein in an embodiment, also include:
Obtain the suction superheat of described air-conditioning；
The throttle part of described air-conditioning is adjusted so that described suction superheat is more than 0 according to described suction superheat.
The present invention also provides for a kind of air-conditioning antifrost system, and described system includes:
First acquisition module, for obtaining the meteorologic parameter of air-conditioning region, wherein, described meteorologic parameter includes described
The temperature information of air-conditioning region and humidity information；
Dew point temperature obtains module, for obtaining according to the described temperature information in described meteorologic parameter and described humidity information
Obtain the dew point temperature of described air-conditioning region；
First adjusting module, for adjusting the operational factor of described air-conditioning so that described air-conditioning according to described dew point temperature
Low-pressure temperature corresponding to operation low pressure more than or equal to described dew point temperature.
Wherein in an embodiment, described first acquisition module includes:
DPRS unit, is arranged on described air-conditioning, for positioning described air-conditioning, it is thus achieved that the location of described air-conditioning
Territory；
Described DPRS unit, is additionally operable to the region according to described air-conditioning and networks with local RSMC, obtain
The described meteorologic parameter of described air-conditioning region.
Wherein in an embodiment, described first acquisition module includes acquiring unit, obtains for the preset in advance time
The meteorologic parameter of described air-conditioning region, described meteorologic parameter includes Changes in weather information；
Described dew point temperature obtains module and includes that dew point temperature obtains unit, for obtaining weather according to described meteorologic parameter
The first dew point temperature before change and the second dew point temperature after Changes in weather；
Described first adjusting module includes judging adjustment unit, for according to described first dew point temperature and described second dew
Point temperature judges that described Changes in weather information is the most accurate；If described Changes in weather information is accurate, then according to described second dew point
Temperature adjusts the operational factor of described air-conditioning；If described Changes in weather information is inaccurate, then maintain the operational factor of described air-conditioning
Constant.
Wherein in an embodiment, described judgement adjustment unit includes:
Adjust subelement, for adjusting the running frequency of the compressor of described air-conditioning according to described second dew point temperature, make
Low-pressure temperature corresponding to the operations low pressure of described air-conditioning is more than or equal to described second dew point temperature.
Wherein in an embodiment, also include:
Second acquisition module, for obtaining the suction superheat of described air-conditioning；
Second adjusting module, for adjusting the throttle part of described air-conditioning so that described suction according to described suction superheat
The gas degree of superheat is more than 0.
The beneficial effect comprise that
Above-mentioned air-conditioning antifrost method and system, combine air-conditioning with the meteorologic parameter of its region well, profit
Calculate the dew point temperature of air-conditioning region with the temperature information in meteorologic parameter and humidity information, adjust according to dew point temperature
Operation of air conditioner so that the low-pressure temperature that the operation low pressure of air-conditioning is corresponding is consistently greater than or is equal to the dew point temperature of region, this
Even if sample air-conditioning is relatively low in temperature, humidity relatively big in the environment of, do not have the phenomenon of frosting yet, air-conditioning frost-free will not be led
Cause air-conditioning heat exchange to be deteriorated, effectively raise the heating effect of air-conditioning.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the air-conditioning antifrost method in an embodiment；
Fig. 2 is the schematic flow sheet of the air-conditioning antifrost method in another embodiment；
Fig. 3 is the schematic flow sheet of the air-conditioning antifrost method in another embodiment；
Fig. 4 is the structural representation of the air-conditioning antifrost method in an embodiment.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples pair
Air-conditioning antifrost method and system of the present invention are further elaborated.Should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
In one embodiment, as shown in Figure 1, it is provided that a kind of air-conditioning antifrost method, the method comprises the following steps:
S100, obtains the meteorologic parameter of air-conditioning region.Wherein, meteorologic parameter includes the temperature letter of air-conditioning region
Breath and humidity information.
S200, obtains dew point temperature T of air-conditioning region according to the temperature information in meteorologic parameter and humidity informationDew。
S300, according to dew point temperature TDewAdjust the operational factor of air-conditioning so that the low pressure temperature that the operation low pressure of air-conditioning is corresponding
Degree TLowMore than or equal to dew point temperature TDew。
In the present embodiment, after air-conditioning installs, obtaining the meteorologic parameter of air-conditioning region in real time, meteorologic parameter includes
The information such as the temperature of air-conditioning region, humidity, wind direction wind-force, haze, believe according to the temperature information in meteorologic parameter and humidity
Breath can obtain dew point temperature T of air-conditioning regionDew, according to this dew point temperature TDewAdjust the operational factor of air-conditioning so that air-conditioning
Low-pressure temperature T corresponding to operation low pressureLowMore than or equal to this dew point temperature TDew, thus ensure that air-conditioning is at outdoor environment temperature relatively
When low, humidity is bigger also will not frosting, ensure air-conditioning heating effect.
Air-conditioning is when heating, if outdoor machine of air-conditioner wants frosting, is low-pressure temperature corresponding to the operation low pressure of air-conditioning the most certainly
TLowLess than dew point temperature T in surrounding airDewIf the low-pressure temperature T that the operation low pressure of air-conditioning is corresponding can be ensuredLowMore than or etc.
In dew point temperature TDew, then outdoor machine of air-conditioner frosting can be prevented.Wherein, the operation low pressure of air-conditioning refers to coolant recycle stream in air-conditioning
When entering compressor, the pressure of inspiration(Pi) of the operating pressure at suction port of compressor, i.e. compressor, the low pressure that the operation low pressure of air-conditioning is corresponding
Temperature refers to the suction temperature of compressor.Air-conditioning antifrost method in the present embodiment, well by air-conditioning and its location
The meteorologic parameter in territory combines, and utilizes meteorologic parameter to calculate dew point temperature T of air-conditioning regionDew, according to dew point temperature TDew
Adjust operation of air conditioner so that the low-pressure temperature T that the operation low pressure of air-conditioning is correspondingLowIt is consistently greater than or is equal to the dew point temperature of region
Degree, though such air-conditioning is relatively low in temperature, humidity relatively big in the environment of, do not have the phenomenon of frosting yet, air-conditioning frost-free will
It is not result in that air-conditioning heat exchange is deteriorated, effectively raises the heating effect of air-conditioning.
Wherein, meteorologic parameter is essentially from two aspects: one is each department gas provided from national authority meteorological department
As parameter, the meteorologic parameter of this part is region general character meteorological data for air-conditioning individuality；Two is air-conditioning themselves capture
Individual meteorologic parameter, the meteorologic parameter of this part is individual character meteorological data for air-conditioning individuality, it is possible to indirectly
The project installation environment that reflection air-conditioning is individual, such as: ventilate, dispel the heat, outdoor, air-conditioned room etc..Region general character meteorological data and individuality
Characteristic meteorological data combines, it is possible to accurately reflect the running environment of each air-conditioning.What deserves to be explained is, if region general character gas
When air-conditioning is affected big by image data, according to region general character meteorological data, the operational factor of air-conditioning is adjusted, if individual character
When air-conditioning is affected bigger by meteorological data, according to individual character meteorological data, the operational factor of air-conditioning is adjusted.
It should be noted that dew point temperature TDewIt is to be calculated according to the temperature information in meteorologic parameter and humidity information
's.Detailed process is as follows:
First, (under airtight condition, gas phase and the liquid phase of water reach the water under poised state to calculate saturated moist air partial pressure
Steam pressure, this pressure value is relevant with corresponding temperature).
Outdoor environment temperature T when air-conditioning regionOutwardWhen=-100～0 DEG C, order: T=273.15+TOutward, saturated wet sky
Edema caused by disorder of QI pressure pqbCan be obtained by below equation:
Wherein, c1～c7Value can be: c1=-5674.5359, c2=6.392547, c3=0.9677843 × 10-2, c4
=0.62215701 × 10-6, c5=0.20747825 × 10-18, c6=0.9484024 × 10-12, c7=4.1635019.
Outdoor environment temperature T when air-conditioning regionOutwardWhen=0～200 DEG C, saturated moist air partial pressure pqbCan by with
Lower formula obtains:
Wherein, c8=-5800.2206, c9=1.3914993, c10=-0.048640239, c11=0.41764748 ×
10-4c12=-0.14452093 × 10-7, c13=6.5459673.
Then, humid air partial pressure is calculatedWherein,For relative air humidity.
Finally, dew point temperature T is calculatedDew=c14+c15ln(Pq)+c16[ln(Pq)]2, wherein, work as TDewWhen=-60～0 DEG C, c14
=-60.45, c15=7.0322, c16=0.37；Work as TDewWhen=0～70 DEG C, c14=-35.957, c15=-1.8726, c16=
1.1689。
In one embodiment, step S100 includes:
S101, by the GPRS (General Packet Radio Service, the general grouped wireless that are arranged on air-conditioning
Service) air-conditioning positions by unit, it is thus achieved that the region of air-conditioning.
S102, networks with current weather center according to the region of air-conditioning, obtains the meteorology of air-conditioning region
Parameter.
GPRS unit can position the region of air-conditioning, it is possible to makes air-conditioning realize at any time and any place soon
Prompt networking easily carries out data interaction, and expense relative moderate.GPRS unit can realize air-conditioning and current weather center
Networking, obtains the meteorological data at current weather center in real time, thus realizes adjusting according to meteorologic parameter the mesh of air conditioner operation parameters
, reaching to prevent that air-conditioning is low in temperature, in the environment of high humidity while frosting, the most do not increase too much expense.
Wherein, GPRS unit is connected with the control of air-conditioning, GPRS gather air-conditioning region meteorologic parameter after, on
Passing to controller, controller calculates dew point temperature T of air-conditioning region according to meteorologic parameterDew。
In one embodiment, see Fig. 2, also include:
S110, the meteorologic parameter of the described air-conditioning region of preset in advance time acquisition, meteorologic parameter includes that weather becomes
Change information.
S210, obtains the first dew point temperature T before Changes in weather according to meteorologic parameterDew 1With after Changes in weather
Two dew point temperatures TDew 2。
S310, according to the first dew point temperature TDew 1With the second dew point temperature TDew 2Judge that Changes in weather information is the most accurate；If my god
Gas change information is accurate, then perform step S311；If Changes in weather is inaccurate, then perform step S312.
S311, according to the second dew point temperature TDew 2Adjust the operational factor of air-conditioning.
S312, the operational factor maintaining air-conditioning is constant.
Air-conditioning easily snowing, frosting under the climatic environment such as frost, when obtaining the meteorologic parameter of air-conditioning region, one
As the preset in advance time obtain, such as: the meteorologic parameter obtaining air-conditioning region in 24 hours in advance, in order to have time enough
Go to judge ensuing one whether it has snow, the Changes in weather such as frost, if it has, then need to adjust the operational factor of air-conditioning,
To ensure air-conditioning frost-free, if it is not, without adjusting.But in practice, weather forecast is the most not very accurate, because of
This, before adjusting air conditioner operation parameters, need to judge that Changes in weather information is the most accurate, thus avoided air-conditioning misoperation.
When judging that Changes in weather information is the most accurately, owing to the temperature and humidity in air before and after Changes in weather all can be sent out
Raw corresponding change, such as: when snowing, the temperature in air reduces, and the humidity in air raises, and dew point temperature TDewIt is
With the temperature and humidity in air is relevant, therefore can determine that Changes in weather is the most accurate according to the change of dew point temperature in air
Really.Obtain t before Changes in weather1The meteorologic parameter of air-conditioning region during the moment, according to the t obtained1The meteorologic parameter meter in moment
Calculation obtains t1First dew point temperature T in momentDew 1, obtain t after Changes in weather simultaneously2The meteorologic parameter in moment, according to t2Moment
Meteorologic parameter be calculated t2Second dew point temperature T in momentDew 2, according to formula A=(TDew 2-TDew 1)/t, wherein, t=t2-t1,
A represents dew point temperature T before and after Changes in weatherDewChange, if in A value falls into preset range (such as: 0.7～4), then judge that weather becomes
Change information is accurate, otherwise, then judges Changes in weather information errors.If Changes in weather information is accurate, then explanation air-conditioning location
The weather in territory there occurs change, now needs according to the second dew point temperature T calculatedDew 2Adjust air conditioner operation parameters, i.e. basis
Dew point temperature after Changes in weather adjusts air conditioner operation parameters, so that the low-pressure temperature T that the operation low pressure of air-conditioning is correspondingLowGreatly
In or equal to the second dew point temperature TDew 2, thus ensure air-conditioning snowing, the Changes in weather such as frost time also will not frosting, protect
That demonstrate,proves air-conditioning heats comfortableness.
In one embodiment, step S311 includes:
S3110, according to the second dew point temperature TDew 2Adjust the running frequency of the compressor of air-conditioning so that the operation of air-conditioning is low
The low-pressure temperature T that pressure is correspondingLowMore than or equal to the second dew point temperature TDew 2。
Can reach to regulate the low pressure temperature that operation of air conditioner low pressure is corresponding by the running frequency of the compressor of the air-conditioning of regulation
Degree TLowEffect, regulate compressor of air conditioner time, can be obtained by below equation:
ΔTLow=a*Pn/Pn-1+b*(Pn-Pn-1)+c*(Pn-2*Pn-1+Pn-2)
Wherein, Δ TLowThe changing value of the low-pressure temperature that expression operation of air conditioner low pressure is corresponding, PnRepresent the compressor in the n moment
Running frequency, Pn-1Represent the compressor operating frequency in the n-1 moment, Pn-2Represent the compressor operating frequency in n-2 moment.a、b、
C represents coefficient, and its span is (-5,5).Before being located at Changes in weather, the running frequency of compressor is P1, the fortune of air-conditioning
Low-pressure temperature corresponding to row low pressure is T1, after n unit of time adjusts compressor so that the operation low pressure of air-conditioning is corresponding
Low-pressure temperature change Delta TLow, i.e. TLow=T1+ΔTLow, it is judged that now TLowWhether more than or equal to the second dew point temperature TDew 2, the most then
Maintain the running frequency of compressor, if it is not, then continue to adjust the running frequency of compressor, until running the low pressure temperature that low pressure is corresponding
Degree TLowMore than or equal to the second dew point temperature TDew 2。
In one embodiment, see Fig. 3, while performing step S300, also include:
S400, obtains the suction superheat of air-conditioning.
S500, adjusts the throttle part of air-conditioning according to suction superheat so that suction superheat is more than 0.
Throttle part is used for controlling the flow of coolant in air conditioning system, when the circulating load of throttle part control coolant is less
Time, in the vaporizer of coolant machine outside, fully, suction superheat will become big in evaporation, otherwise, when throttle part controls coolant
When circulating load is bigger, evaporating the most insufficient in the vaporizer of coolant machine outside, suction superheat will diminish.Wherein, TOverheated=
TAir-breathing-TGo out pipe, TOverheatedRepresent suction superheat, TAir-breathingRepresent the suction temperature of compressor, TGo out pipeRepresent that vaporizer goes out pipe temperature.Work as suction
The gas degree of superheat hour, adjusts throttle part, makes to be reduced by the refrigerant circulation of vaporizer, and coolant fully steams in vaporizer
Send out, thus improve suction superheat, it is ensured that the suction temperature of compressor goes out pipe temperature more than vaporizer, is further ensured that air-breathing temperature
Degree is more than dew point temperature, it is ensured that air-conditioning will not occur frost, improves the heating effect of air-conditioning further.
It should be noted that S400 and S500 herein is served only for illustrating, it is not used to limit its order performed,
I.e. step S400 and step S500 also can perform before performing step S300.
In one embodiment, control parts and include electric expansion valve, adjust electric expansion valve according to suction superheat
Stepper motor steps so that suction superheat is more than 0, i.e. makes the suction temperature of compressor go out pipe temperature more than vaporizer,
It is further ensured that suction temperature is more than dew point temperature, it is ensured that air-conditioning will not occur frost, improves heating of air-conditioning further
Effect.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, be permissible
Instructing relevant hardware by computer program to complete, described program can be stored in a computer read/write memory medium
In, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access
Memory, RAM) etc..
In one embodiment, as shown in Figure 4, additionally providing a kind of air-conditioning antifrost system, this system includes: first obtains
Delivery block 100, for obtaining the meteorologic parameter of air-conditioning region, wherein, meteorologic parameter includes the temperature of air-conditioning region
Information and humidity information.Dew point temperature obtains module 200, for obtaining according to the temperature information in meteorologic parameter and humidity information
Dew point temperature T of air-conditioning regionDew.First adjusting module, for according to dew point temperature TDewAdjust the operational factor of air-conditioning, make
Obtain the low-pressure temperature T that the operation low pressure of air-conditioning is correspondingLowMore than or equal to dew point temperature TDew。
Air-conditioning antifrost system in the present embodiment, combines air-conditioning with the meteorologic parameter of its region well,
Meteorologic parameter is utilized to calculate dew point temperature T of air-conditioning regionDew, according to dew point temperature TDewAdjust operation of air conditioner so that empty
Low-pressure temperature T corresponding to operation low pressure adjustedLowIt is consistently greater than or is equal to dew point temperature T of regionDewEven if such air-conditioning exists
Temperature is relatively low, humidity relatively big in the environment of, do not have the phenomenon of frosting yet, air-conditioning frost-free will not result in air-conditioning heat exchange and becomes
Difference, effectively raises the heating effect of air-conditioning.
In one embodiment, the first acquisition module includes: DPRS unit 101, is arranged on air-conditioning, for described sky
Transfer in row location, it is thus achieved that the region of air-conditioning.DPRS unit 101, is additionally operable to the region according to air-conditioning meteorological with locality
Networking in center, obtains the meteorologic parameter of air-conditioning region.
In one embodiment, the first acquisition module 100 includes acquiring unit 110, obtains sky for the preset in advance time
Adjusting the meteorologic parameter of region, meteorologic parameter includes Changes in weather information.Dew point temperature obtains module 200 and includes dew point temperature
Degree obtains unit 210, for obtaining the first dew point temperature T before Changes in weather according to meteorologic parameterDew 1After Changes in weather
The second dew point temperature TDew 2.First adjusting module 300 includes judging adjustment unit 310, for according to the first dew point temperature TDew 1With
Second dew point temperature TDew 2Judge that Changes in weather information is the most accurate；If Changes in weather information is accurate, then according to the second dew point temperature
TDew 2Adjust the operational factor of described air-conditioning；If Changes in weather information is inaccurate, then the operational factor maintaining air-conditioning is constant.
In one embodiment, it is judged that adjustment unit 310 includes: adjust subelement 311, for according to described second dew point
Temperature TDew 2Adjust the running frequency of compressor of air-conditioning so that the low-pressure temperature T that the operation low pressure of air-conditioning is correspondingLowMore than or etc.
In the second dew point temperature TDew 2。
In one embodiment, also include: the second acquisition module 400, for obtaining the suction superheat of described air-conditioning.The
Two adjusting modules 500, for adjusting the throttle part of air-conditioning so that suction superheat is more than 0 according to suction superheat.
Owing to the principle of this system solution problem is similar to a kind of aforementioned air-conditioning antifrost method, the therefore enforcement of this system
May refer to the enforcement of preceding method, repeat no more in place of repetition.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that, come for those of ordinary skill in the art
Saying, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an air-conditioning antifrost method, it is characterised in that described method includes:
Obtaining the meteorologic parameter of air-conditioning region, wherein, described meteorologic parameter includes the temperature letter of described air-conditioning region
Breath and humidity information；
The dew point of described air-conditioning region is obtained according to the described temperature information in described meteorologic parameter and described humidity information
Temperature；
The operational factor of described air-conditioning is adjusted so that the low pressure temperature that the operation low pressure of described air-conditioning is corresponding according to described dew point temperature
Degree is more than or equal to described dew point temperature.
Air-conditioning antifrost method the most according to claim 1, it is characterised in that the meteorology of described acquisition air-conditioning region
The step of parameter includes:
By the GPRS unit being arranged on described air-conditioning, described air-conditioning is positioned, it is thus achieved that the region of described air-conditioning；
Networking with local RSMC in region according to described air-conditioning, obtains the described gas of described air-conditioning region
As parameter.
Air-conditioning antifrost method the most according to claim 1 and 2, it is characterised in that also include:
The preset in advance time obtains the meteorologic parameter of described air-conditioning region, and described meteorologic parameter includes that Changes in weather is believed
Breath；
The first dew point temperature before Changes in weather and the second dew point temperature after Changes in weather is obtained according to described meteorologic parameter
Degree；
Judge that described Changes in weather information is the most accurate according to described first dew point temperature and described second dew point temperature；
If described Changes in weather information is accurate, then adjust the operational factor of described air-conditioning according to described second dew point temperature；
If described Changes in weather information is inaccurate, then the operational factor maintaining described air-conditioning is constant.
Air-conditioning antifrost method the most according to claim 3, it is characterised in that if described Changes in weather information is accurate
Really, then the step of the operational factor adjusting described air-conditioning according to described second dew point temperature includes:
The running frequency of the compressor of described air-conditioning is adjusted so that the operation low pressure of described air-conditioning according to described second dew point temperature
Corresponding low-pressure temperature is more than or equal to described second dew point temperature.
Air-conditioning antifrost method the most according to claim 1, it is characterised in that described according to described dew point temperature in execution
Adjust the operational factor of described air-conditioning so that the low-pressure temperature that the operation low pressure of described air-conditioning is corresponding is more than or equal to described dew point
During the step of temperature, also include:
Obtain the suction superheat of described air-conditioning；
The throttle part of described air-conditioning is adjusted so that described suction superheat is more than 0 according to described suction superheat.
6. an air-conditioning antifrost system, it is characterised in that described system includes:
First acquisition module (100), for obtaining the meteorologic parameter of air-conditioning region, wherein, described meteorologic parameter includes institute
State temperature information and the humidity information of air-conditioning region；
Dew point temperature obtains module (200), for according to the described temperature information in described meteorologic parameter and described humidity information
Obtain the dew point temperature of described air-conditioning region；
First adjusting module (300), for adjusting the operational factor of described air-conditioning so that described air-conditioning according to described dew point temperature
Low-pressure temperature corresponding to operation low pressure more than or equal to described dew point temperature.
Air-conditioning antifrost method the most according to claim 6, it is characterised in that described first acquisition module (100) including:
DPRS unit (101), is arranged on described air-conditioning, for positioning described air-conditioning, it is thus achieved that the place of described air-conditioning
Region；
Described DPRS unit (101), is additionally operable to the region according to described air-conditioning and networks with local RSMC, obtain
The described meteorologic parameter of described air-conditioning region.
8. according to the air-conditioning antifrost method described in claim 6 or 7, it is characterised in that:
Described first acquisition module (100) includes acquiring unit (110), obtains described air-conditioning location for the preset in advance time
The meteorologic parameter in territory, described meteorologic parameter includes Changes in weather information；
Described dew point temperature obtains module (200) and includes that dew point temperature obtains unit (210), for obtaining according to described meteorologic parameter
Take the first dew point temperature before Changes in weather and the second dew point temperature after Changes in weather；
Described first adjusting module (300) includes judging adjustment unit (310), for according to described first dew point temperature and described
Second dew point temperature judges that described Changes in weather information is the most accurate；If described Changes in weather information is accurate, then according to described the
Two dew point temperatures adjust the operational factor of described air-conditioning；If described Changes in weather information is inaccurate, then maintain the fortune of described air-conditioning
Line parameter is constant.
Air-conditioning antifrost method the most according to claim 8, it is characterised in that described judgement adjustment unit (310) including:
Adjust subelement (311), for adjusting the running frequency of the compressor of described air-conditioning according to described second dew point temperature, make
Low-pressure temperature corresponding to the operations low pressure of described air-conditioning is more than or equal to described second dew point temperature.
Air-conditioning antifrost method the most according to claim 6, it is characterised in that also include:
Second acquisition module (400), for obtaining the suction superheat of described air-conditioning；
Second adjusting module (500), for adjusting the throttle part of described air-conditioning so that described suction according to described suction superheat
The gas degree of superheat is more than 0.
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| CN108800438A (en) * | 2018-05-24 | 2018-11-13 | 青岛海尔空调器有限总公司 | Air conditioner inhibits frosting control method |
| CN108800437A (en) * | 2018-05-24 | 2018-11-13 | 青岛海尔空调器有限总公司 | Air conditioner inhibits frosting control method |
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| CN110360712A (en) * | 2018-04-09 | 2019-10-22 | 珠海格力电器股份有限公司 | A kind of air conditioning control method, device, storage medium and air-conditioning |
| CN110736238A (en) * | 2019-10-25 | 2020-01-31 | 珠海格力电器股份有限公司 | Method and device for controlling air conditioner, equipment, storage medium and electronic device |
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| CN109323370A (en) * | 2018-09-30 | 2019-02-12 | 广东美的制冷设备有限公司 | Air-conditioning and its defrosting method and device |
| CN110736238A (en) * | 2019-10-25 | 2020-01-31 | 珠海格力电器股份有限公司 | Method and device for controlling air conditioner, equipment, storage medium and electronic device |
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