CN104566855B - Filter screen dirtying blocks up method for early warning - Google Patents
Filter screen dirtying blocks up method for early warning Download PDFInfo
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- CN104566855B CN104566855B CN201410811715.5A CN201410811715A CN104566855B CN 104566855 B CN104566855 B CN 104566855B CN 201410811715 A CN201410811715 A CN 201410811715A CN 104566855 B CN104566855 B CN 104566855B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Method for early warning is blocked up the invention provides a kind of filter screen dirtying, is comprised the following steps：Step S1：After start operation, the environment temperature t0 and inner tube temperature T0 at the first moment are detected respectively, and the environment temperature tP and inner tube temperature TP at the second moment after the operation P times, and computing environment temperature difference Zhi ⊿ t=(t0 tP) and inner tube temperature difference Zhi ⊿ T=(T0 TP)；Step S2：Detect the operational mode of air conditioner；Step S3：When for refrigeration mode, circumstance of temperature difference Zhi ⊿ t are compared with default refrigerating environment alarm parameters, and inner tube temperature difference Zhi ⊿ T are compared with default refrigeration inner tube alarm parameters；When circumstance of temperature difference Zhi ⊿ t are less than or equal to default refrigerating environment alarm parameters, and inner tube temperature difference Zhi ⊿ T are when being more than or equal to default refrigeration inner tube alarm parameters, then the dirty stifled alarm signal of output filtering net.The present invention effectively improves reliability by the rate of change of inner tube temperature and environment temperature.
Description
Technical field
The present invention relates to field of air conditioning, method for early warning is blocked up in particular to a kind of filter screen dirtying.
Background technology
During air conditioner use, if not cleaning screen pack for a long time, dust and other impurities can sink at screen pack
Product, causes intake to greatly reduce, or even because screen pack is all blocked, causes no air quantity to enter.In this case,
Indoor set heat exchanger heat exchange amount can be caused to reduce so that performance is substantially reduced, or even without refrigeration or heating capacity.More serious
It is, in heating operation, because indoor set heat exchanger becomes condenser, if condensation effect is not good to cause its pressure and temperature
Bursting accident easily occurs for (bending deformation easy to break in installation process) at rise, the bellows deformation in heat exchanger assembly；In system
During cold operation, indoor set heat exchanger is evaporator, and because heat transfer effect is greatly reduced, evaporation effect is not obvious, so that inhaling
Gas does not have the degree of superheat, adds the possibility of compressor liquid hammer.
In summary, dirty stifled screen pack can influence refrigeration, heating effect, or even can cause pipe explosion accident, and reduction is reliable
Property and service life.It is necessary so increase filter screen dirtying blocks up Forewarning Measures.Most of filterings on the market at present
It is to carry out cleaning prompting by calculating air conditioner use time to net dirty stifled modes of warning, due to only only accounting for making for air conditioner
With the time, the use environment of air conditioner is not accounted for (the more place of dust, its screen pack can occur dirty stifled within a short period of time)
Etc. factor, the reliability that existing filter screen dirtying blocks up modes of warning is all relatively low.
The content of the invention
The present invention is intended to provide a kind of filter screen dirtying that can improve reliability blocks up method for early warning.
Method for early warning is blocked up the invention provides a kind of filter screen dirtying, is comprised the following steps：Step S1：After start operation, point
The environment temperature tP at the second moment after the environment temperature t0 and inner tube temperature T0 at the first moment, and operation P times is not detected
With inner tube temperature TP, and computing environment temperature difference Zhi ⊿ t=(t0-tP) and inner tube temperature difference Zhi ⊿ T=(T0-TP)；Step S2：Detection
The operational mode of air conditioner；Step S3：When for refrigeration mode, by circumstance of temperature difference Zhi ⊿ t and default refrigerating environment alarm parameters
Compare, and inner tube temperature difference Zhi ⊿ T are compared with default refrigeration inner tube alarm parameters；When circumstance of temperature difference Zhi ⊿ t are less than or equal to
Default refrigerating environment alarm parameters, and inner tube temperature difference Zhi ⊿ T are when being more than or equal to default refrigeration inner tube alarm parameters, then export
Filter screen dirtying blocks up alarm signal.
Further, presetting refrigerating environment alarm parameters includes the first wind shelves refrigerating environment parameter, the second wind shelves refrigerating ring
Border parameter and the 3rd wind shelves refrigerating environment parameter；Default refrigeration inner tube alarm parameters include the first wind shelves refrigeration inner tube parameter, the
Two wind shelves refrigeration inner tube parameter and the 3rd wind shelves refrigeration inner tube parameter；Step S3 includes：Step S31：The air conditioner wind shelves of detection,
When for the first wind shelves, step S32 is performed；When for the second wind shelves, step S33 is performed；When for the 3rd wind shelves, step is performed
S34；Step S32：Circumstance of temperature difference Zhi ⊿ t and the first wind shelves refrigerating environment parameter are compared, and by inner tube temperature difference Zhi ⊿ T and first
Wind shelves refrigeration inner tube parameter compares；When circumstance of temperature difference Zhi ⊿ t are less than or equal to the first wind shelves refrigerating environment parameter, and inner tube temperature
When Cha Zhi ⊿ T are more than or equal to the first wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net；Step S33：Will
Circumstance of temperature difference Zhi ⊿ t are compared with the second wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T and the second wind shelves refrigeration inner tube are joined
Number compares；When circumstance of temperature difference Zhi ⊿ t be less than or equal to the second wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T be more than or
When person is equal to the second wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net；Step S34：By circumstance of temperature difference Zhi ⊿ t
Compared with the 3rd wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T are compared with the 3rd wind shelves refrigeration inner tube parameter；Work as environment
Temperature difference Zhi ⊿ t are less than or equal to the 3rd wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T are more than or equal to the 3rd wind shelves
During inner tube parameter of freezing, then the dirty stifled alarm signal of output filtering net.
Further, the first wind shelves refrigerating environment parameter includes first environment temperature difference Zhi ⊿ t1 and second environment temperature difference Zhi ⊿
t2；First wind shelves refrigeration inner tube parameter includes the first inner tube temperature difference Zhi ⊿ T1 and the second inner tube temperature difference Zhi ⊿ T2；Step S32 bags
Include：Step S321：Environment temperature t0 is contrasted with refrigeration high temperature judgment value K1；As t0 ＜ K1, perform step S322, when t0 >=
During K1, step S323 is performed；Step S322：Circumstance of temperature difference Zhi ⊿ t are compared with first environment temperature difference Zhi ⊿ t1, and by inner tube temperature
Cha Zhi ⊿ T are compared with the first inner tube temperature difference Zhi ⊿ T1；When circumstance of temperature difference Zhi ⊿ t are less than or equal to first environment temperature difference Zhi ⊿
T1, and inner tube temperature difference Zhi ⊿ T are when being more than or equal to the first inner tube temperature difference Zhi ⊿ T1, then the dirty stifled alarm signal of output filtering net；
Step S323：Circumstance of temperature difference Zhi ⊿ t are compared with second environment temperature difference Zhi ⊿ t2, and by inner tube temperature difference Zhi ⊿ T and the second inner tube
Temperature difference Zhi ⊿ T2 compare；When circumstance of temperature difference Zhi ⊿ t are less than or equal to second environment temperature difference Zhi ⊿ t2, and inner tube temperature difference Zhi ⊿ T
During more than or equal to the second inner tube temperature difference Zhi ⊿ T2, then the dirty stifled alarm signal of output filtering net.
Further, the second wind shelves refrigerating environment parameter includes the 3rd circumstance of temperature difference value ⊿ t3 and the 4th circumstance of temperature difference value ⊿
t4；Second wind shelves refrigeration inner tube parameter includes the 3rd inner tube temperature difference Zhi ⊿ T3 and the 4th inner tube temperature difference Zhi ⊿ T4；Step S33 bags
Include：Step S331：Environment temperature t0 is contrasted with refrigeration high temperature judgment value K1；As t0 ＜ K1, perform step S332, when t0 >=
During K1, step S333 is performed；Step S332：Circumstance of temperature difference Zhi ⊿ t are compared with the 3rd circumstance of temperature difference Zhi ⊿ t3, and by inner tube temperature
Cha Zhi ⊿ T are compared with the 3rd inner tube temperature difference Zhi ⊿ T3；When circumstance of temperature difference Zhi ⊿ t are less than or equal to the 3rd circumstance of temperature difference Zhi ⊿
T3, and inner tube temperature difference Zhi ⊿ T are when being more than or equal to the 3rd inner tube temperature difference Zhi ⊿ T3, then the dirty stifled alarm signal of output filtering net；
Step S333：Circumstance of temperature difference value ⊿ t are compared with the 4th circumstance of temperature difference value ⊿ t4, and by inner tube temperature difference value ⊿ T and the 4th inner tube
Temperature difference Zhi ⊿ T4 compare；When circumstance of temperature difference value ⊿ t are less than or equal to the 4th circumstance of temperature difference value ⊿ t4, and inner tube temperature difference value ⊿ T
During more than or equal to the 4th inner tube temperature difference Zhi ⊿ T4, then the dirty stifled alarm signal of output filtering net.
Further, the 3rd wind shelves refrigerating environment parameter includes the 5th circumstance of temperature difference value ⊿ t5 and the 6th circumstance of temperature difference value ⊿
t6；3rd wind shelves refrigeration inner tube parameter includes the 5th inner tube temperature difference Zhi ⊿ T5 and the 6th inner tube temperature difference Zhi ⊿ T6；Step S34 bags
Include：Step S341：Environment temperature t0 is contrasted with refrigeration high temperature judgment value K1；As t0 ＜ K1, perform step S342, when t0 >=
During K1, step S343 is performed；Step S342：Circumstance of temperature difference value ⊿ t are compared with the 5th circumstance of temperature difference value ⊿ t5, and by inner tube temperature
Cha Zhi ⊿ T are compared with the 5th inner tube temperature difference Zhi ⊿ T5；When circumstance of temperature difference value ⊿ t are less than or equal to the 5th circumstance of temperature difference value ⊿
T5, and inner tube temperature difference Zhi ⊿ T are when being more than or equal to the 5th inner tube temperature difference Zhi ⊿ T5, then the dirty stifled alarm signal of output filtering net；
Step S343：Circumstance of temperature difference Zhi ⊿ t are compared with the 6th circumstance of temperature difference Zhi ⊿ t6, and by inner tube temperature difference Zhi ⊿ T and the 6th inner tube
Temperature difference Zhi ⊿ T6 compare；When circumstance of temperature difference Zhi ⊿ t are less than or equal to the 6th circumstance of temperature difference Zhi ⊿ t6, and inner tube temperature difference Zhi ⊿ T
During more than or equal to the 6th inner tube temperature difference Zhi ⊿ T6, then the dirty stifled alarm signal of output filtering net.
Further, this method also includes：Step S4：When for heating mode, circumstance of temperature difference Zhi ⊿ t are heated with default
Environment alarm parameters compare, and inner tube temperature difference Zhi ⊿ T are heated inner tube alarm parameters and compared with default；As circumstance of temperature difference Zhi ⊿ t
Environment alarm parameters are heated more than or equal to default, and inner tube temperature difference Zhi ⊿ T are less than or equal to the default inner tube that heats and alarmed
During parameter, then the dirty stifled alarm signal of output filtering net.
Further, the default environment alarm parameters that heat heat ambient parameter including the first wind shelves, and the second wind shelves heat ring
Border parameter and the 3rd wind shelves heat ambient parameter；The default inner tube alarm parameters that heat heat inner tube parameter including the first wind shelves, the
Two wind shelves heat inner tube parameter and the 3rd wind shelves heat inner tube parameter；
Step S4 includes：
Step S41：The air conditioner wind shelves of detection, when for the first wind shelves, perform step S42；When for the second wind shelves, hold
Row step S43；When for the 3rd wind shelves, step S44 is performed；
Step S42：Circumstance of temperature difference Zhi ⊿ t and the first wind shelves refrigerating environment parameter are compared, and by inner tube temperature difference Zhi ⊿ T with
First wind shelves refrigeration inner tube parameter compares；It is and interior when circumstance of temperature difference Zhi ⊿ t are more than or equal to the first wind shelves refrigerating environment parameter
When pipe temperature difference Zhi ⊿ T are less than or equal to the first wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net；
Step S43：Circumstance of temperature difference Zhi ⊿ t and the second wind shelves refrigerating environment parameter are compared, and by inner tube temperature difference Zhi ⊿ T with
Second wind shelves refrigeration inner tube parameter compares；It is and interior when circumstance of temperature difference Zhi ⊿ t are more than or equal to the second wind shelves refrigerating environment parameter
When pipe temperature difference Zhi ⊿ T are less than or equal to the second wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net；Step
S44：Circumstance of temperature difference Zhi ⊿ t are compared with the 3rd wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T and the 3rd wind shelves are freezed
Inner tube parameter compares；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 3rd wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T
During less than or equal to the 3rd wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net.
Further, the first wind shelves, which heat ambient parameter, includes the 7th circumstance of temperature difference Zhi ⊿ t7 and the 8th circumstance of temperature difference Zhi ⊿
t8；First wind shelves, which heat inner tube parameter, includes the 7th inner tube temperature difference Zhi ⊿ T7 and the 8th inner tube temperature difference Zhi ⊿ T8；Step S42 bags
Include：Step S421：By environment temperature t0 with heating high temperature judgment value K2 contrasts；As t0 ＜ K2, perform step S422, when t0 >=
During K2, step S423 is performed；Step S422：Circumstance of temperature difference Zhi ⊿ t are compared with the 7th circumstance of temperature difference Zhi ⊿ t7, and by inner tube temperature
Cha Zhi ⊿ T are compared with the 7th inner tube temperature difference Zhi ⊿ T7；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 7th circumstance of temperature difference Zhi ⊿
T7, and inner tube temperature difference Zhi ⊿ T are when being less than or equal to the 7th inner tube temperature difference Zhi ⊿ T7, then the dirty stifled alarm signal of output filtering net；
Step S423：Circumstance of temperature difference Zhi ⊿ t are compared with the 8th circumstance of temperature difference Zhi ⊿ t8, and by inner tube temperature difference Zhi ⊿ T and the 8th inner tube
Temperature difference Zhi ⊿ T8 compare；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 8th circumstance of temperature difference Zhi ⊿ t8, and inner tube temperature difference Zhi ⊿ T
During less than or equal to the 8th inner tube temperature difference Zhi ⊿ T8, then the dirty stifled alarm signal of output filtering net.
Further, the second wind shelves, which heat ambient parameter, includes the 9th circumstance of temperature difference value ⊿ t9 and the tenth circumstance of temperature difference value ⊿
t10；Second wind shelves, which heat inner tube parameter, includes the 9th inner tube temperature difference Zhi ⊿ T9 and the tenth inner tube temperature difference Zhi ⊿ T10；Step S43 bags
Include：Step S431：By environment temperature t0 with heating high temperature judgment value K2 contrasts；As t0 ＜ K2, perform step S432, when t0 >=
During K2, step S433 is performed；Step S432：Circumstance of temperature difference Zhi ⊿ t are compared with the 9th circumstance of temperature difference Zhi ⊿ t9, and by inner tube temperature
Cha Zhi ⊿ T are compared with the 9th inner tube temperature difference Zhi ⊿ T9；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 9th circumstance of temperature difference Zhi ⊿
T9, and inner tube temperature difference Zhi ⊿ T are when being less than or equal to the 9th inner tube temperature difference Zhi ⊿ T9, then the dirty stifled alarm signal of output filtering net；
Step S433：Circumstance of temperature difference value ⊿ t are compared with the tenth circumstance of temperature difference value ⊿ t10, and by inner tube temperature difference value ⊿ T and the tenth inner tube
Temperature difference Zhi ⊿ T10 compare；When circumstance of temperature difference value ⊿ t are more than or equal to the tenth circumstance of temperature difference value ⊿ t10, and inner tube temperature difference value ⊿
When T is less than or equal to the tenth inner tube temperature difference Zhi ⊿ T10, then the dirty stifled alarm signal of output filtering net.
Further, the 3rd wind shelves, which heat ambient parameter, includes the 11st circumstance of temperature difference Zhi ⊿ t11 and the 12nd environment temperature
Cha Zhi ⊿ t12；3rd wind shelves, which heat inner tube parameter, includes the 11st inner tube temperature difference Zhi ⊿ T11 and the 12nd inner tube temperature difference Zhi ⊿
T12；Step S44 includes：Step S441：By environment temperature t0 with heating high temperature judgment value K2 contrasts；As t0 ＜ K2, step is performed
Rapid S442, as t0 >=K2, performs step S443；Step S442：By circumstance of temperature difference Zhi ⊿ t and the 11st circumstance of temperature difference Zhi ⊿
T11 compares, and inner tube temperature difference Zhi ⊿ T are compared with the 11st inner tube temperature difference Zhi ⊿ T11；Be more than as circumstance of temperature difference Zhi ⊿ t or
Equal to the 11st circumstance of temperature difference Zhi ⊿ t11, and inner tube temperature difference Zhi ⊿ T are when being less than or equal to the 11st inner tube temperature difference Zhi ⊿ T11,
The then dirty stifled alarm signal of output filtering net；Step S443：Circumstance of temperature difference Zhi ⊿ t are compared with the 12nd circumstance of temperature difference Zhi ⊿ t12,
And compared inner tube temperature difference Zhi ⊿ T with the 12nd inner tube temperature difference Zhi ⊿ T12；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the tenth
Two circumstance of temperature difference Zhi ⊿ t12, and inner tube temperature difference Zhi ⊿ T be less than or equal to the 12nd inner tube temperature difference Zhi ⊿ T12 when, then exported
The dirty stifled alarm signal of filter screen.
Method for early warning is blocked up according to the filter screen dirtying of the present invention, by calculating the circumstance of temperature difference Zhi ⊿ t=in preset time period P
(t0-tP) and inner tube temperature difference Zhi ⊿ T=(T0-TP), come react the rate of change , of inner tube temperature and environment temperature Jiang ⊿ t He ⊿ T with
Corresponding parameter preset contrast, so as to judge that whether dirty screen pack is stifled.I.e. by the rate of change of inner tube temperature and environment temperature,
To react the intake that the heat or cold of inner tube are delivered to the efficiency, i.e. air-conditioning of environment, so as to accurately judge screen pack
It is whether dirty stifled, compared with prior art in, only consider air-conditioner operation time, or variation of ambient temperature, can be effectively prevented from
Other factors influence, and improve reliability.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic flow sheet that method for early warning is blocked up according to the filter screen dirtying of the present invention.
Embodiment
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, blocking up method for early warning according to the filter screen dirtying of the present invention, comprise the following steps：Step S1：Start operation
Afterwards, the environment temperature at the second moment after the environment temperature t0 and inner tube temperature T0 at the first moment, and operation P times is detected respectively
Spend tP and inner tube temperature TP, and computing environment temperature difference Zhi ⊿ t=(t0-tP) and inner tube temperature difference Zhi ⊿ T=(T0-TP)；Step S2：
Detect the operational mode of air conditioner；Step S3：When for refrigeration mode, circumstance of temperature difference Zhi ⊿ t and default refrigerating environment are alarmed
Parameter compares, and inner tube temperature difference Zhi ⊿ T are compared with default refrigeration inner tube alarm parameters；Be less than as circumstance of temperature difference Zhi ⊿ t or
Equal to default refrigerating environment alarm parameters, and inner tube temperature difference Zhi ⊿ T are when being more than or equal to default refrigeration inner tube alarm parameters, then
The dirty stifled alarm signal of output filtering net.
Preferably, method of the invention also includes step S4：When for heating mode, by circumstance of temperature difference Zhi ⊿ t with presetting
Heat environment alarm parameters to compare, and inner tube temperature difference Zhi ⊿ T are heated inner tube alarm parameters and compared with default；When circumstance of temperature difference value
⊿ t, which are more than or equal to preset, heats environment alarm parameters, and inner tube temperature difference Zhi ⊿ T heat inner tube report less than or equal to default
During alert parameter, then the dirty stifled alarm signal of output filtering net.
The present invention is by calculating circumstance of temperature difference Zhi ⊿ t=(t0-tP) and inner tube temperature difference Zhi ⊿ T=in preset time period P
(T0-TP), the rate of change , of inner tube temperature and environment temperature is reacted Jiang ⊿ t He ⊿ T are contrasted with corresponding parameter preset, so that
To judge that whether dirty screen pack is stifled.I.e. by the rate of change of inner tube temperature and environment temperature, to react the heat or cold of inner tube
Amount is delivered to the intake of the efficiency, i.e. air-conditioning of environment, so as to accurately judge that whether dirty screen pack is stifled, compared with prior art
In, only consider air-conditioner operation time, or variation of ambient temperature, other factors influence can be effectively prevented from, improve reliable
Property.
The technical principle of the present invention is further analyzed, when screen pack occurs dirty stifled, the intake of air-conditioning is relatively large
It is big to reduce, so that the heat exchange efficiency of indoor set heat exchanger is substantially reduced.When heating, because the heat of heat exchanger can not be exchanged
Into room air so that the inner tube temperature of heat exchanger can be much higher than normal temperature, the temperature increase rate in room is substantially reduced；
In refrigeration, because the cold of heat exchanger can not be exchanged in room air so that the inner tube temperature of heat exchanger can be significantly less than just
Normal temperature, room temperature reduction speed is substantially reduced.
Therefore, it is possible to by being monitored to indoor environment temperature rate of change and inner tube temperature change, when indoor environment temperature
Spend rate of change and be less than a setting value (by experimental verification, being heated and refrigeration mode both of these case wherein being divided into) and inner tube
Temperature is higher than (under heating operation mode) or less than (under cooling operation mode) setting value (by experimental verification).In addition, such as
Fruit only monitors indoor circumstance temperature rate of change or inner tube temperature, and its reliability will not be high.Because indoor circumstance temperature rate of change or interior
Guan Wen is not only only related with interior fan delivery, and also other factors are also influenced whether, for example coolant quantity is not enough.So passing through monitoring
Both data can increase its reliability.
Specifically, it is contemplated that the wind shelves of air-conditioning in itself also have large effect to environment temperature and inner tube temperature change,
The present invention by default refrigerating environment alarm parameters be specially the first wind shelves refrigerating environment parameter, the second wind shelves refrigerating environment parameter and
3rd wind shelves refrigerating environment parameter；Correspondingly, it is specially the first wind shelves refrigeration inner tube parameter to preset refrigeration inner tube alarm parameters, the
Two wind shelves refrigeration inner tube parameter and the 3rd wind shelves refrigeration inner tube parameter.First wind shelves, the second wind shelves and the 3rd wind shelves it is general more
Plus the air flux of air-conditioning in itself.I.e. according to air flux, certain adjustment is made to corresponding parameter.
Further, step S3 includes：Step S31：The air conditioner wind shelves of detection, when for the first wind shelves, perform step
S32；When for the second wind shelves, step S33 is performed；When for the 3rd wind shelves, step S34 is performed；Step S32：By circumstance of temperature difference
Zhi ⊿ t are compared with the first wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T are compared with the first wind shelves refrigeration inner tube parameter；
When circumstance of temperature difference Zhi ⊿ t are less than or equal to the first wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T are more than or equal to the
During one wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net；Step S33：By circumstance of temperature difference Zhi ⊿ t and the second wind
Shelves refrigerating environment parameter compares, and inner tube temperature difference Zhi ⊿ T are compared with the second wind shelves refrigeration inner tube parameter；As circumstance of temperature difference Zhi ⊿
T is less than or equal to the second wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T are more than or equal to the second wind shelves refrigeration inner tube
During parameter, then the dirty stifled alarm signal of output filtering net；Step S34：By circumstance of temperature difference Zhi ⊿ t and the 3rd wind shelves refrigerating environment parameter
Compare, and inner tube temperature difference Zhi ⊿ T are compared with the 3rd wind shelves refrigeration inner tube parameter；When circumstance of temperature difference Zhi ⊿ t are less than or equal to
3rd wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T be more than or equal to the 3rd wind shelves refrigeration inner tube parameter when, then export
Filter screen dirtying blocks up alarm signal.
More specifically, because environment initial temperature has large effect to the rate of change of environment temperature, in order to further carry
High reliability, the first wind shelves refrigerating environment parameter includes first environment temperature difference Zhi ⊿ t1 and second environment temperature difference Zhi ⊿ t2；First
Wind shelves refrigeration inner tube parameter includes the first inner tube temperature difference Zhi ⊿ T1 and the second inner tube temperature difference Zhi ⊿ T2；Initial environment temperature is corresponded to respectively
The relatively low and higher situation of degree.
That is step S32 includes：Step S321：Environment temperature t0 is contrasted with refrigeration high temperature judgment value K1；As t0 ＜ K1,
Step S322 is performed, as t0 >=K1, step S323 is performed；Step S322：By circumstance of temperature difference Zhi ⊿ t and first environment temperature approach
⊿ t1 compare, and inner tube temperature difference Zhi ⊿ T are compared with the first inner tube temperature difference Zhi ⊿ T1；When circumstance of temperature difference Zhi ⊿ t are less than or wait
In first environment temperature difference Zhi ⊿ t1, and inner tube temperature difference Zhi ⊿ T are when being more than or equal to the first inner tube temperature difference Zhi ⊿ T1, then export
The dirty stifled alarm signal of filter screen；Step S323：Circumstance of temperature difference Zhi ⊿ t are compared with second environment temperature difference Zhi ⊿ t2, and by inner tube temperature
Cha Zhi ⊿ T are compared with the second inner tube temperature difference Zhi ⊿ T2；When circumstance of temperature difference Zhi ⊿ t are less than or equal to second environment temperature difference Zhi ⊿
T2, and inner tube temperature difference Zhi ⊿ T are when being more than or equal to the second inner tube temperature difference Zhi ⊿ T2, then the dirty stifled alarm signal of output filtering net.
Preferably, rule of thumb and theoretical calculation, K1=22 DEG C, with preferable critical effect.
Similarly, it is considered to which environment initial temperature has large effect to the rate of change of environment temperature, the second wind shelves are freezed
Ambient parameter is more specifically specially the 3rd circumstance of temperature difference value ⊿ t3 and the 4th circumstance of temperature difference value ⊿ t4；Second wind shelves refrigeration inner tube
Parameter is specially the 3rd inner tube temperature difference Zhi ⊿ T3 and the 4th inner tube temperature difference Zhi ⊿ T4；Correspondingly, step S33 includes：Step S331：
Environment temperature t0 is contrasted with refrigeration high temperature judgment value K1；As t0 ＜ K1, step S332 is performed, as t0 >=K1, step is performed
Rapid S333；Step S332：Circumstance of temperature difference Zhi ⊿ t are compared with the 3rd circumstance of temperature difference Zhi ⊿ t3, and by inner tube temperature difference Zhi ⊿ T and
Three inner tube temperature difference Zhi ⊿ T3 compare；When circumstance of temperature difference Zhi ⊿ t are less than or equal to the 3rd circumstance of temperature difference Zhi ⊿ t3, and the inner tube temperature difference
When Zhi ⊿ T are more than or equal to the 3rd inner tube temperature difference Zhi ⊿ T3, then the dirty stifled alarm signal of output filtering net；Step S333：By ring
Border temperature difference value ⊿ t are compared with the 4th circumstance of temperature difference value ⊿ t4, and by inner tube temperature difference value ⊿ T and the 4th inner tube temperature difference value ⊿ T4 ratios
Compared with；When circumstance of temperature difference value ⊿ t are more than or equal to less than or equal to the 4th circumstance of temperature difference value ⊿ t4, and inner tube temperature difference value ⊿ T
During the 4th inner tube temperature difference Zhi ⊿ T4, then the dirty stifled alarm signal of output filtering net.
Further, it is specially the 5th circumstance of temperature difference value ⊿ t5 and the 6th circumstance of temperature difference by the 3rd wind shelves refrigerating environment parameter
Zhi ⊿ t6；3rd wind shelves refrigeration inner tube parameter is specially the 5th inner tube temperature difference Zhi ⊿ T5 and the 6th inner tube temperature difference Zhi ⊿ T6；Step
S34 includes：Step S341：Environment temperature t0 is contrasted with refrigeration high temperature judgment value K1；As t0 ＜ K1, step S342 is performed,
As t0 >=K1, step S343 is performed；Step S342：Circumstance of temperature difference value ⊿ t are compared with the 5th circumstance of temperature difference value ⊿ t5, and will
Inner tube temperature difference Zhi ⊿ T are compared with the 5th inner tube temperature difference Zhi ⊿ T5；When circumstance of temperature difference value ⊿ t are less than or equal to the 5th circumstance of temperature difference
Zhi ⊿ t5, and inner tube temperature difference Zhi ⊿ T are when being more than or equal to the 5th inner tube temperature difference Zhi ⊿ T5, then the dirty stifled alarm signal of output filtering net
Number；Step S343：Circumstance of temperature difference Zhi ⊿ t are compared with the 6th circumstance of temperature difference Zhi ⊿ t6, and by inner tube temperature difference Zhi ⊿ T and the 6th
Pipe temperature difference Zhi ⊿ T6 compare；When circumstance of temperature difference Zhi ⊿ t are less than or equal to the 6th circumstance of temperature difference Zhi ⊿ t6, and inner tube temperature difference Zhi ⊿
When T is more than or equal to the 6th inner tube temperature difference Zhi ⊿ T6, then the dirty stifled alarm signal of output filtering net.
Similarly, in a heating mode, further division is made also according to air conditioner wind shelves itself and environment temperature, specifically
Situation is similar to refrigeration mode.It is specially that the first wind shelves heat ambient parameter, the second wind shelves to preset and heat environment alarm parameters
Heat ambient parameter and the 3rd wind shelves heat ambient parameter；The default inner tube alarm parameters that heat are specially that the first wind shelves heat inner tube
Parameter, the second wind shelves heat inner tube parameter and the 3rd wind shelves heat inner tube parameter.
Similarly, step S4 includes：Step S41：The air conditioner wind shelves of detection, when for the first wind shelves, perform step
S42；When for the second wind shelves, step S43 is performed；When for the 3rd wind shelves, step S44 is performed；Step S42：By circumstance of temperature difference
Zhi ⊿ t are compared with the first wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T are compared with the first wind shelves refrigeration inner tube parameter；
When circumstance of temperature difference Zhi ⊿ t are more than or equal to the first wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T are less than or equal to the
During one wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net；Step S43：By circumstance of temperature difference Zhi ⊿ t and the second wind
Shelves refrigerating environment parameter compares, and inner tube temperature difference Zhi ⊿ T are compared with the second wind shelves refrigeration inner tube parameter；As circumstance of temperature difference Zhi ⊿
T is more than or equal to the second wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T are less than or equal to the second wind shelves refrigeration inner tube
During parameter, then the dirty stifled alarm signal of output filtering net；Step S44：By circumstance of temperature difference Zhi ⊿ t and the 3rd wind shelves refrigerating environment parameter
Compare, and inner tube temperature difference Zhi ⊿ T are compared with the 3rd wind shelves refrigeration inner tube parameter；When circumstance of temperature difference Zhi ⊿ t are more than or equal to
3rd wind shelves refrigerating environment parameter, and inner tube temperature difference Zhi ⊿ T be less than or equal to the 3rd wind shelves refrigeration inner tube parameter when, then export
Filter screen dirtying blocks up alarm signal.
Correspondingly, it is specially the 7th circumstance of temperature difference Zhi ⊿ t7 and the 8th circumstance of temperature difference Zhi ⊿ that the first wind shelves, which heat ambient parameter,
t8；It is specially the 7th inner tube temperature difference Zhi ⊿ T7 and the 8th inner tube temperature difference Zhi ⊿ T8 that first wind shelves, which heat inner tube parameter,；Step S42 bags
Include：Step S421：By environment temperature t0 with heating high temperature judgment value K2 contrasts；As t0 ＜ K2, perform step S422, when t0 >=
During K2, step S423 is performed；Step S422：Circumstance of temperature difference Zhi ⊿ t are compared with the 7th circumstance of temperature difference Zhi ⊿ t7, and by inner tube temperature
Cha Zhi ⊿ T are compared with the 7th inner tube temperature difference Zhi ⊿ T7；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 7th circumstance of temperature difference Zhi ⊿
T7, and inner tube temperature difference Zhi ⊿ T are when being less than or equal to the 7th inner tube temperature difference Zhi ⊿ T7, then the dirty stifled alarm signal of output filtering net；
Step S423：Circumstance of temperature difference Zhi ⊿ t are compared with the 8th circumstance of temperature difference Zhi ⊿ t8, and by inner tube temperature difference Zhi ⊿ T and the 8th inner tube
Temperature difference Zhi ⊿ T8 compare；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 8th circumstance of temperature difference Zhi ⊿ t8, and inner tube temperature difference Zhi ⊿ T
During less than or equal to the 8th inner tube temperature difference Zhi ⊿ T8, then the dirty stifled alarm signal of output filtering net.
Similarly, the second wind shelves, which heat ambient parameter, includes the 9th circumstance of temperature difference value ⊿ t9 and the tenth circumstance of temperature difference value ⊿
t10；Second wind shelves, which heat inner tube parameter, includes the 9th inner tube temperature difference Zhi ⊿ T9 and the tenth inner tube temperature difference Zhi ⊿ T10；Step S43 bags
Include：Step S431：By environment temperature t0 with heating high temperature judgment value K2 contrasts；As t0 ＜ K2, perform step S432, when t0 >=
During K2, step S433 is performed；Step S432：Circumstance of temperature difference Zhi ⊿ t are compared with the 9th circumstance of temperature difference Zhi ⊿ t9, and by inner tube temperature
Cha Zhi ⊿ T are compared with the 9th inner tube temperature difference Zhi ⊿ T9；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 9th circumstance of temperature difference Zhi ⊿
T9, and inner tube temperature difference Zhi ⊿ T are when being less than or equal to the 9th inner tube temperature difference Zhi ⊿ T9, then the dirty stifled alarm signal of output filtering net；
Step S433：Circumstance of temperature difference value ⊿ t are compared with the tenth circumstance of temperature difference value ⊿ t10, and by inner tube temperature difference value ⊿ T and the tenth inner tube
Temperature difference Zhi ⊿ T10 compare；When circumstance of temperature difference value ⊿ t are more than or equal to the tenth circumstance of temperature difference value ⊿ t10, and inner tube temperature difference value ⊿
When T is less than or equal to the tenth inner tube temperature difference Zhi ⊿ T10, then the dirty stifled alarm signal of output filtering net.Preferably, rule of thumb and
Understand and calculate, when K2=20 DEG C, in a heating mode with preferable critical effect.
Similarly, the 3rd wind shelves, which heat ambient parameter, includes the 11st circumstance of temperature difference Zhi ⊿ t11 and the 12nd circumstance of temperature difference
Zhi ⊿ t12；3rd wind shelves, which heat inner tube parameter, includes the 11st inner tube temperature difference Zhi ⊿ T11 and the 12nd inner tube temperature difference Zhi ⊿ T12；
Step S44 includes：Step S441：By environment temperature t0 with heating high temperature judgment value K2 contrasts；As t0 ＜ K2, step is performed
S442, as t0 >=K2, performs step S443；Step S442：By circumstance of temperature difference Zhi ⊿ t and the 11st circumstance of temperature difference Zhi ⊿ t11
Compare, and inner tube temperature difference Zhi ⊿ T are compared with the 11st inner tube temperature difference Zhi ⊿ T11；When circumstance of temperature difference Zhi ⊿ t are more than or equal to
11st circumstance of temperature difference Zhi ⊿ t11, and inner tube temperature difference Zhi ⊿ T be less than or equal to the 11st inner tube temperature difference Zhi ⊿ T11 when, then it is defeated
Go out filter screen dirtying and block up alarm signal；Step S443：Circumstance of temperature difference Zhi ⊿ t are compared with the 12nd circumstance of temperature difference Zhi ⊿ t12, and will
Inner tube temperature difference Zhi ⊿ T are compared with the 12nd inner tube temperature difference Zhi ⊿ T12；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 12nd ring
Border temperature difference Zhi ⊿ t12, and inner tube temperature difference Zhi ⊿ T are when being less than or equal to the 12nd inner tube temperature difference Zhi ⊿ T12, then output filtering net
Dirty stifled alarm signal.
More specifically, describing the detailed conditions of the present invention in detail with reference to table 1 below.
The filter screen dirtying of table 1 blocks up method for early warning Rule of judgment
In upper table 1, t0 is the first moment indoor environment temperature after start；After tP is the operation P time after the first moment
The second moment indoor environment temperature；T0 is the first moment inner tube temperature after start；TP is the operation P times after the first moment
Inner tube temperature after the second moment afterwards；T0, tP, T0, TP unit is DEG C.T0, tP, T0, TP, operational mode (M), wind shelves
(F) obtained by checking.One of 12 conditions, that is, judge to meet the dirty stifled condition of filtering, display failure code more than meet
Point out user cleaning screen pack, complete machine is not shut down.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
Method for early warning is blocked up according to the filter screen dirtying of the present invention, by calculating the circumstance of temperature difference Zhi ⊿ t=in preset time period P
(t0-tP) and inner tube temperature difference Zhi ⊿ T=(T0-TP), come react the rate of change , of inner tube temperature and environment temperature Jiang ⊿ t He ⊿ T with
Corresponding parameter preset contrast, so as to judge that whether dirty screen pack is stifled.I.e. by the rate of change of inner tube temperature and environment temperature,
To react the intake that the heat or cold of inner tube are delivered to the efficiency, i.e. air-conditioning of environment, so as to accurately judge screen pack
It is whether dirty stifled, compared with prior art in, only consider air-conditioner operation time, or variation of ambient temperature, can be effectively prevented from
Other factors influence, and improve reliability.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of filter screen dirtying blocks up method for early warning, it is characterised in that comprise the following steps：
Step S1：After start operation, the environment temperature t0 and inner tube temperature T0 at the first moment, and operation P times are detected respectively
The environment temperature tP and inner tube temperature TP at the second moment afterwards, and computing environment temperature difference Zhi ⊿ t=(t0-tP) and inner tube temperature approach
⊿ T=(T0-TP)；
Step S2：Detect the operational mode of air conditioner；
Step S3：When for refrigeration mode, circumstance of temperature difference Zhi ⊿ t are compared with default refrigerating environment alarm parameters, and by inner tube
Temperature difference Zhi ⊿ T are compared with default refrigeration inner tube alarm parameters；When circumstance of temperature difference Zhi ⊿ t are less than or equal to default refrigerating environment report
Alert parameter, and inner tube temperature difference Zhi ⊿ T are when being more than or equal to default refrigeration inner tube alarm parameters, then the dirty stifled alarm of output filtering net
Signal.
2. filter screen dirtying according to claim 1 blocks up method for early warning, it is characterised in that
Default refrigerating environment alarm parameters include the first wind shelves refrigerating environment parameter, the second wind shelves refrigerating environment parameter and the 3rd wind
Shelves refrigerating environment parameter；
Default refrigeration inner tube alarm parameters include the first wind shelves refrigeration inner tube parameter, the second wind shelves refrigeration inner tube parameter and the 3rd wind
Shelves refrigeration inner tube parameter；
The step S3 includes：
Step S31：The air conditioner wind shelves of detection, when for the first wind shelves, perform step S32；When for the second wind shelves, step is performed
Rapid S33；When for the 3rd wind shelves, step S34 is performed；
Step S32：Circumstance of temperature difference Zhi ⊿ t and the first wind shelves refrigerating environment parameter are compared, and by inner tube temperature difference Zhi ⊿ T and first
Wind shelves refrigeration inner tube parameter compares；When circumstance of temperature difference Zhi ⊿ t are less than or equal to the first wind shelves refrigerating environment parameter, and inner tube temperature
When Cha Zhi ⊿ T are more than or equal to the first wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net；
Step S33：Circumstance of temperature difference Zhi ⊿ t and the second wind shelves refrigerating environment parameter are compared, and by inner tube temperature difference Zhi ⊿ T and second
Wind shelves refrigeration inner tube parameter compares；When circumstance of temperature difference Zhi ⊿ t are less than or equal to the second wind shelves refrigerating environment parameter, and inner tube temperature
When Cha Zhi ⊿ T are more than or equal to the second wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net；
Step S34：Circumstance of temperature difference Zhi ⊿ t and the 3rd wind shelves refrigerating environment parameter are compared, and by inner tube temperature difference Zhi ⊿ T and the 3rd
Wind shelves refrigeration inner tube parameter compares；When circumstance of temperature difference Zhi ⊿ t are less than or equal to the 3rd wind shelves refrigerating environment parameter, and inner tube temperature
When Cha Zhi ⊿ T are more than or equal to the 3rd wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net.
3. filter screen dirtying according to claim 2 blocks up method for early warning, it is characterised in that
The first wind shelves refrigerating environment parameter includes first environment temperature difference Zhi ⊿ t1 and second environment temperature difference Zhi ⊿ t2；
The first wind shelves refrigeration inner tube parameter includes the first inner tube temperature difference Zhi ⊿ T1 and the second inner tube temperature difference Zhi ⊿ T2；
The step S32 includes：
Step S321：Environment temperature t0 is contrasted with refrigeration high temperature judgment value K1；As t0 ＜ K1, step S322 is performed, works as t0
During >=K1, step S323 is performed；
Step S322：Circumstance of temperature difference Zhi ⊿ t are compared with first environment temperature difference Zhi ⊿ t1, and by inner tube temperature difference Zhi ⊿ T and first
Inner tube temperature difference Zhi ⊿ T1 compare；When circumstance of temperature difference Zhi ⊿ t are less than or equal to first environment temperature difference Zhi ⊿ t1, and inner tube temperature approach
When ⊿ T are more than or equal to the first inner tube temperature difference Zhi ⊿ T1, then the dirty stifled alarm signal of output filtering net；
Step S323：Circumstance of temperature difference Zhi ⊿ t are compared with second environment temperature difference Zhi ⊿ t2, and by inner tube temperature difference Zhi ⊿ T and second
Inner tube temperature difference Zhi ⊿ T2 compare；When circumstance of temperature difference Zhi ⊿ t are less than or equal to second environment temperature difference Zhi ⊿ t2, and inner tube temperature approach
When ⊿ T are more than or equal to the second inner tube temperature difference Zhi ⊿ T2, then the dirty stifled alarm signal of output filtering net.
4. filter screen dirtying according to claim 2 blocks up method for early warning, it is characterised in that
The second wind shelves refrigerating environment parameter includes the 3rd circumstance of temperature difference value ⊿ t3 and the 4th circumstance of temperature difference value ⊿ t4；
The second wind shelves refrigeration inner tube parameter includes the 3rd inner tube temperature difference Zhi ⊿ T3 and the 4th inner tube temperature difference Zhi ⊿ T4；
The step S33 includes：
Step S331：Environment temperature t0 is contrasted with refrigeration high temperature judgment value K1；As t0 ＜ K1, step S332 is performed, works as t0
During >=K1, step S333 is performed；
Step S332：Circumstance of temperature difference Zhi ⊿ t are compared with the 3rd circumstance of temperature difference Zhi ⊿ t3, and by inner tube temperature difference Zhi ⊿ T and the 3rd
Inner tube temperature difference Zhi ⊿ T3 compare；When circumstance of temperature difference Zhi ⊿ t are less than or equal to the 3rd circumstance of temperature difference Zhi ⊿ t3, and inner tube temperature approach
When ⊿ T are more than or equal to the 3rd inner tube temperature difference Zhi ⊿ T3, then the dirty stifled alarm signal of output filtering net；
Step S333：Circumstance of temperature difference value ⊿ t are compared with the 4th circumstance of temperature difference value ⊿ t4, and by inner tube temperature difference value ⊿ T and the 4th
Inner tube temperature difference Zhi ⊿ T4 compare；When circumstance of temperature difference value ⊿ t are less than or equal to the 4th circumstance of temperature difference value ⊿ t4, and inner tube temperature approach
When ⊿ T are more than or equal to the 4th inner tube temperature difference Zhi ⊿ T4, then the dirty stifled alarm signal of output filtering net.
5. filter screen dirtying according to claim 2 blocks up method for early warning, it is characterised in that
The 3rd wind shelves refrigerating environment parameter includes the 5th circumstance of temperature difference value ⊿ t5 and the 6th circumstance of temperature difference value ⊿ t6；
The 3rd wind shelves refrigeration inner tube parameter includes the 5th inner tube temperature difference Zhi ⊿ T5 and the 6th inner tube temperature difference Zhi ⊿ T6；
The step S34 includes：
Step S341：Environment temperature t0 is contrasted with refrigeration high temperature judgment value K1；As t0 ＜ K1, step S342 is performed, works as t0
During >=K1, step S343 is performed；
Step S342：Circumstance of temperature difference value ⊿ t are compared with the 5th circumstance of temperature difference value ⊿ t5, and by inner tube temperature difference value ⊿ T and the 5th
Inner tube temperature difference Zhi ⊿ T5 compare；When circumstance of temperature difference value ⊿ t are less than or equal to the 5th circumstance of temperature difference value ⊿ t5, and inner tube temperature approach
When ⊿ T are more than or equal to the 5th inner tube temperature difference Zhi ⊿ T5, then the dirty stifled alarm signal of output filtering net；
Step S343：Circumstance of temperature difference Zhi ⊿ t are compared with the 6th circumstance of temperature difference Zhi ⊿ t6, and by inner tube temperature difference Zhi ⊿ T and the 6th
Inner tube temperature difference Zhi ⊿ T6 compare；When circumstance of temperature difference Zhi ⊿ t are less than or equal to the 6th circumstance of temperature difference Zhi ⊿ t6, and inner tube temperature approach
When ⊿ T are more than or equal to the 6th inner tube temperature difference Zhi ⊿ T6, then the dirty stifled alarm signal of output filtering net.
6. filter screen dirtying according to claim 1 blocks up method for early warning, it is characterised in that methods described also includes：
Step S4：When for heating mode, circumstance of temperature difference Zhi ⊿ t are heated environment alarm parameters and compared with default, and by inner tube
Temperature difference Zhi ⊿ T heat inner tube alarm parameters and compared with default；Environment report is heated when circumstance of temperature difference Zhi ⊿ t are more than or equal to preset
Alert parameter, and inner tube temperature difference Zhi ⊿ T are less than or equal to default when heating inner tube alarm parameters, the then dirty stifled alarm of output filtering net
Signal.
7. filter screen dirtying according to claim 6 blocks up method for early warning, it is characterised in that
The default environment alarm parameters that heat heat ambient parameter including the first wind shelves, and the second wind shelves heat ambient parameter and the 3rd wind
Shelves heat ambient parameter；
The default inner tube alarm parameters that heat heat inner tube parameter including the first wind shelves, and the second wind shelves heat inner tube parameter and the 3rd wind
Shelves heat inner tube parameter；
The step S4 includes：
Step S41：The air conditioner wind shelves of detection, when for the first wind shelves, perform step S42；When for the second wind shelves, step is performed
Rapid S43；When for the 3rd wind shelves, step S44 is performed；
Step S42：Circumstance of temperature difference Zhi ⊿ t and the first wind shelves refrigerating environment parameter are compared, and by inner tube temperature difference Zhi ⊿ T and first
Wind shelves refrigeration inner tube parameter compares；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the first wind shelves refrigerating environment parameter, and inner tube temperature
When Cha Zhi ⊿ T are less than or equal to the first wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net；
Step S43：Circumstance of temperature difference Zhi ⊿ t and the second wind shelves refrigerating environment parameter are compared, and by inner tube temperature difference Zhi ⊿ T and second
Wind shelves refrigeration inner tube parameter compares；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the second wind shelves refrigerating environment parameter, and inner tube temperature
When Cha Zhi ⊿ T are less than or equal to the second wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net；
Step S44：Circumstance of temperature difference Zhi ⊿ t and the 3rd wind shelves refrigerating environment parameter are compared, and by inner tube temperature difference Zhi ⊿ T and the 3rd
Wind shelves refrigeration inner tube parameter compares；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 3rd wind shelves refrigerating environment parameter, and inner tube temperature
When Cha Zhi ⊿ T are less than or equal to the 3rd wind shelves refrigeration inner tube parameter, then the dirty stifled alarm signal of output filtering net.
8. filter screen dirtying according to claim 7 blocks up method for early warning, it is characterised in that
The first wind shelves, which heat ambient parameter, includes the 7th circumstance of temperature difference Zhi ⊿ t7 and the 8th circumstance of temperature difference Zhi ⊿ t8；
The first wind shelves, which heat inner tube parameter, includes the 7th inner tube temperature difference Zhi ⊿ T7 and the 8th inner tube temperature difference Zhi ⊿ T8；
The step S42 includes：
Step S421：By environment temperature t0 with heating high temperature judgment value K2 contrasts；As t0 ＜ K2, step S422 is performed, works as t0
During >=K2, step S423 is performed；
Step S422：Circumstance of temperature difference Zhi ⊿ t are compared with the 7th circumstance of temperature difference Zhi ⊿ t7, and by inner tube temperature difference Zhi ⊿ T and the 7th
Inner tube temperature difference Zhi ⊿ T7 compare；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 7th circumstance of temperature difference Zhi ⊿ t7, and inner tube temperature approach
When ⊿ T are less than or equal to the 7th inner tube temperature difference Zhi ⊿ T7, then the dirty stifled alarm signal of output filtering net；
Step S423：Circumstance of temperature difference Zhi ⊿ t are compared with the 8th circumstance of temperature difference Zhi ⊿ t8, and by inner tube temperature difference Zhi ⊿ T and the 8th
Inner tube temperature difference Zhi ⊿ T8 compare；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 8th circumstance of temperature difference Zhi ⊿ t8, and inner tube temperature approach
When ⊿ T are less than or equal to the 8th inner tube temperature difference Zhi ⊿ T8, then the dirty stifled alarm signal of output filtering net.
9. filter screen dirtying according to claim 7 blocks up method for early warning, it is characterised in that
The second wind shelves, which heat ambient parameter, includes the 9th circumstance of temperature difference value ⊿ t9 and the tenth circumstance of temperature difference value ⊿ t10；
The second wind shelves, which heat inner tube parameter, includes the 9th inner tube temperature difference Zhi ⊿ T9 and the tenth inner tube temperature difference Zhi ⊿ T10；
The step S43 includes：
Step S431：By environment temperature t0 with heating high temperature judgment value K2 contrasts；As t0 ＜ K2, step S432 is performed, works as t0
During >=K2, step S433 is performed；
Step S432：Circumstance of temperature difference Zhi ⊿ t are compared with the 9th circumstance of temperature difference Zhi ⊿ t9, and by inner tube temperature difference Zhi ⊿ T and the 9th
Inner tube temperature difference Zhi ⊿ T9 compare；When circumstance of temperature difference Zhi ⊿ t are more than or equal to the 9th circumstance of temperature difference Zhi ⊿ t9, and inner tube temperature approach
When ⊿ T are less than or equal to the 9th inner tube temperature difference Zhi ⊿ T9, then the dirty stifled alarm signal of output filtering net；
Step S433：Circumstance of temperature difference value ⊿ t are compared with the tenth circumstance of temperature difference value ⊿ t10, and by inner tube temperature difference value ⊿ T and the tenth
Inner tube temperature difference Zhi ⊿ T10 compare；When circumstance of temperature difference value ⊿ t are more than or equal to the tenth circumstance of temperature difference value ⊿ t10, and the inner tube temperature difference
When Zhi ⊿ T are less than or equal to the tenth inner tube temperature difference Zhi ⊿ T10, then the dirty stifled alarm signal of output filtering net.
10. filter screen dirtying according to claim 7 blocks up method for early warning, it is characterised in that
The 3rd wind shelves, which heat ambient parameter, includes the 11st circumstance of temperature difference Zhi ⊿ t11 and the 12nd circumstance of temperature difference Zhi ⊿ t12；
The 3rd wind shelves, which heat inner tube parameter, includes the 11st inner tube temperature difference Zhi ⊿ T11 and the 12nd inner tube temperature difference Zhi ⊿ T12；
The step S44 includes：
Step S441：By environment temperature t0 with heating high temperature judgment value K2 contrasts；As t0 ＜ K2, step S442 is performed, works as t0
During >=K2, step S443 is performed；
Step S442：Circumstance of temperature difference Zhi ⊿ t are compared with the 11st circumstance of temperature difference Zhi ⊿ t11, and by inner tube temperature difference Zhi ⊿ T and
11 inner tube temperature difference Zhi ⊿ T11 compare；It is and interior when circumstance of temperature difference Zhi ⊿ t are more than or equal to the 11st circumstance of temperature difference Zhi ⊿ t11
When pipe temperature difference Zhi ⊿ T are less than or equal to the 11st inner tube temperature difference Zhi ⊿ T11, then the dirty stifled alarm signal of output filtering net；
Step S443：Circumstance of temperature difference Zhi ⊿ t are compared with the 12nd circumstance of temperature difference Zhi ⊿ t12, and by inner tube temperature difference Zhi ⊿ T and
12 inner tube temperature difference Zhi ⊿ T12 compare；It is and interior when circumstance of temperature difference Zhi ⊿ t are more than or equal to the 12nd circumstance of temperature difference Zhi ⊿ t12
When pipe temperature difference Zhi ⊿ T are less than or equal to the 12nd inner tube temperature difference Zhi ⊿ T12, then the dirty stifled alarm signal of output filtering net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410811715.5A CN104566855B (en) | 2014-12-22 | 2014-12-22 | Filter screen dirtying blocks up method for early warning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410811715.5A CN104566855B (en) | 2014-12-22 | 2014-12-22 | Filter screen dirtying blocks up method for early warning |
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| CN105485973B (en) * | 2016-01-11 | 2018-02-13 | 合肥美的电冰箱有限公司 | A kind of system and method for determining when cleaning collection suede net |
| CN106382709B (en) * | 2016-08-26 | 2019-04-09 | 珠海格力电器股份有限公司 | The dirty stifled detection method of filter screen of air conditioner and system and air conditioner |
| CN106369749B (en) * | 2016-09-07 | 2019-04-16 | 珠海格力电器股份有限公司 | Determine method, blowing device and its control method of the remaining time of cleaning strainer |
| CN109631231B (en) * | 2018-12-14 | 2020-12-22 | 奥克斯空调股份有限公司 | Accumulated dust judging device and method and air conditioner |
| CN111288608B (en) * | 2020-03-04 | 2021-11-09 | 宁波奥克斯电气股份有限公司 | Control method and control device for filter screen filth blockage reminding and air conditioner |
| CN111288607B (en) * | 2020-03-04 | 2022-02-08 | 宁波奥克斯电气股份有限公司 | Method and device for detecting filth blockage of air conditioner heat exchanger and air conditioner |
| CN111623469B (en) * | 2020-05-11 | 2021-06-18 | 珠海格力电器股份有限公司 | Air conditioner air duct state detection method, computer readable storage medium and air conditioner |
| CN112782219A (en) * | 2020-12-29 | 2021-05-11 | 广东普门生物医疗科技有限公司 | Method and device for detecting ventilation performance of ventilation pipe, storage medium and warming blanket |
| CN114087714B (en) * | 2021-11-10 | 2022-11-01 | 珠海格力电器股份有限公司 | Air conditioner filter screen filth blockage detection method and device and air conditioner |
| CN114216231B (en) * | 2021-12-06 | 2023-05-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Control method of air conditioner and air conditioner |
| CN114234364B (en) * | 2021-12-17 | 2023-04-25 | 宁波奥克斯电气股份有限公司 | Dirty blocking judgment method and device for air conditioner filter screen and air conditioner |
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