CN110736239A - Method and device for determining lubricating oil allowance in air conditioner - Google Patents
Method and device for determining lubricating oil allowance in air conditioner Download PDFInfo
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- CN110736239A CN110736239A CN201911039306.7A CN201911039306A CN110736239A CN 110736239 A CN110736239 A CN 110736239A CN 201911039306 A CN201911039306 A CN 201911039306A CN 110736239 A CN110736239 A CN 110736239A
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000004364 calculation method Methods 0.000 claims abstract description 45
- 239000003921 oil Substances 0.000 claims description 34
- 238000004378 air conditioning Methods 0.000 claims description 31
- 239000000314 lubricant Substances 0.000 claims description 21
- 238000003860 storage Methods 0.000 claims description 10
- 238000005057 refrigeration Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 239000010726 refrigerant oil Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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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
- F25B2500/00—Problems to be solved
- F25B2500/16—Lubrication
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- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application discloses a method for determining the residual quantity of lubricating oil in air conditioners, which comprises the steps of obtaining at least operating parameters of the air conditioner, determining a lubricating oil residual quantity standard value and an output capacity standard value corresponding to at least operating parameters, comparing the output capacity value and the output capacity standard value, determining a calculation strategy corresponding to a comparison result, and determining the residual quantity of the lubricating oil of a compressor by adopting the determined calculation strategy based on at least of the lubricating oil residual quantity standard value, the output capacity standard value and the current output capacity value of the air conditioner.
Description
Technical Field
The application relates to the field of air conditioners, in particular to a method and a device for determining the residual quantity of lubricating oil in air conditioners.
Background
Generally, a programmable controller adopts a programming language specified by IEC61131, and the program test is carried out in an upper computer programming environment, and the running program of a lower computer can be debugged by means of setting a breakpoint, single-step execution and the like to realize functions such as monitoring states, monitoring data, tracking variables and the like.
With the continuous development of the automatic detection field, the determination method of the real-time power of the refrigerator or the air conditioner compressor is mainly divided into two types, wherein types detect the real-time power of the compressor through a related detection device (for example, the effective current value I and the voltage value U are detected, and then the power P is calculated as UI), types fit a related power calculation formula based on the big data of the compressor operation, and then directly calculate the power through the related fitting formula, but both the two types of methods have the problem, the method of "detecting the power" inevitably needs to additionally increase the detection device, increases the manufacturing cost and the selling price, and leads to dissatisfaction of manufacturers and users, and the method of "calculating the power" does not consider the influence of other factors (such as the condition of lubricating oil) on the performance (power consumption) of the compressor, and the calculation result is inaccurate.
Therefore, the residual amount (oil amount and oil quality) of the lubricating oil of the refrigerator or the air-conditioning compressor has great influence on the running performance (power consumption) of the compressor, and if the compressor runs under the condition of extremely lacking oil amount for a long time, the unit is easily damaged, and the existing related technology has incomplete detection and control method for the residual amount of the lubricating oil of the compressor.
In view of the above technical problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the application provides a determination method and a determination device for the residual quantity of lubricating oil in air conditioners, and aims to at least solve the technical problem that the detection and control method for the residual quantity of lubricating oil in a compressor in the prior art is incomplete.
According to aspects of the embodiment of the application, the method for determining the lubricating oil residue in air conditioners comprises the steps of obtaining at least operating parameters of the air conditioner, determining a lubricating oil residue standard value and an output capacity standard value corresponding to the at least operating parameters, comparing the output capacity value with the output capacity standard value, determining a calculation strategy corresponding to the comparison result, and determining the lubricating oil residue of the compressor by adopting the determined calculation strategy on the basis of at least of the lubricating oil residue standard value, the output capacity standard value and the current output capacity value of the air conditioner.
Optionally, determining the calculation strategy corresponding to the comparison result comprises determining to calculate the residual quantity of the lubricating oil by adopting an th calculation strategy when the comparison result indicates that the output capacity value is not less than the output capacity standard value, wherein the th calculation strategy is used for determining the residual quantity of the lubricating oil of the compressor based on the residual quantity standard value of the lubricating oil.
Optionally, the th calculation strategy includes determining the lube oil level criterion value as the lube oil level of the compressor.
Optionally, when the residual quantity standard value and the output capacity standard value corresponding to at least operation parameters are determined, the method further comprises the step of obtaining the standard power value of the compressor corresponding to at least operation parameters, and the method further comprises the step of determining the standard power value as the current power value of the compressor when the comparison result indicates that the output capacity value is not less than the output capacity standard value.
Optionally, determining a calculation policy corresponding to the comparison result includes: and when the comparison result indicates that the output capacity value is smaller than the output capacity standard value, determining to adopt a second calculation strategy to calculate the lubricating oil allowance, wherein the second calculation strategy calculates the lubricating oil allowance of the compressor on the basis of the lubricating oil allowance standard value, the output capacity standard value and the current output capacity value of the air conditioner.
Optionally, the second calculation strategy comprises: the remaining amount of lubricant oil of the compressor is calculated by the following formula: di＝[1-(QF0-Qi)/λFi/QF0]*DF0，Wherein D isiIndicating the remaining amount of lubricating oil of the compressor, QF0Represents a standard value of output capability, QiIndicating the current output capability value of the air conditioner, DF0Denotes the remaining amount of lubricating oil, λFiIs a constant.
Optionally, when the comparison result indicates that the output capability value is smaller than the output capability standard value, the method further includes: comparing the residual quantity of the lubricating oil of the compressor with a preset threshold value; when the comparison result indicates that the residual quantity of the lubricating oil of the compressor is greater than the preset threshold value, controlling the air conditioner to continue to operate according to the current operation state; and when the comparison result indicates that the residual quantity of the lubricating oil of the compressor is smaller than a preset threshold value, controlling the air conditioner to give an alarm.
Optionally, when the comparison result indicates that the remaining amount of the lubricant oil of the compressor is less than the preset threshold, the method further includes: and controlling the compressor to stop running.
Optionally, the operating parameters include at least of an operating frequency of the compressor, an inner fan speed, an outer fan speed, an expansion valve opening, a unit output capacity value.
According to another aspect of the embodiment of the application, the device for determining the residual quantity of lubricating oil in the air conditioner is further provided and comprises an obtaining module, a determining module, a comparison module, a second determining module and a third determining module, wherein the obtaining module is used for obtaining at least operating parameters of the air conditioner, the determining module is used for determining a lubricating oil residual quantity standard value and an output capacity standard value corresponding to at least operating parameters, the lubricating oil residual quantity standard value is a lubricating oil residual quantity standard value of a compressor in the air conditioner, the comparison module is used for comparing the output capacity value with the output capacity standard value, the second determining module is used for determining a calculation strategy corresponding to the comparison result, and the third determining module is used for determining the residual quantity of lubricating oil of the compressor by adopting the determined calculation strategy based on at least of the lubricating oil.
According to another aspect of the embodiment of the application, the method for determining the residual quantity of the lubricating oil in air conditioners comprises the steps of obtaining a lubricating oil residual quantity standard value and an output capacity standard value of the air conditioner, comparing the output capacity value with the output capacity standard value, determining a calculation strategy corresponding to the comparison result, and determining the residual quantity of the lubricating oil of the compressor by adopting the determined calculation strategy based on at least of the lubricating oil residual quantity standard value, the output capacity standard value and the current output capacity value of the air conditioner.
According to another aspect of the embodiment of the present application, nonvolatile storage media are further provided, and the nonvolatile storage media comprise stored programs, wherein when the programs are run, the devices where the storage media are located are controlled to execute the method for determining the lubricating oil residual quantity in the air conditioner.
According to another aspect of the embodiment of the present application, there are also provided processors, the processors are configured to run a program, wherein the program is run to execute the method for determining the remaining amount of lubricant in the air conditioner.
In the embodiment of the application, the lubricating oil allowance is determined by comparing the air conditioner operation parameter with the air conditioner standard operation value, so that the technical problem that the detection and control method for the lubricating oil allowance of the compressor in the prior related art is incomplete is solved, the residual amount of the lubricating oil of the air conditioner is monitored in real time, and the technical effect of avoiding the damage of an air conditioning unit is achieved.
Drawings
The accompanying drawings, which are incorporated herein and constitute part of this application and are included to provide a further understanding of the application, section of the application, illustrate embodiments of the application and together with the description serve to explain the application and not to limit the application.
Fig. 1 is a flowchart of a method for determining the remaining amount of lubricating oil in air conditioners according to an embodiment of the present application;
FIG. 2 is a flow chart of an alternative compressor real-time power, lube oil margin determination method according to an embodiment of the present application;
fig. 3 is a block diagram showing the configuration of an apparatus for determining the remaining amount of lubricating oil in air conditioners according to an embodiment of the present application.
Detailed Description
For a better understanding of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application , not all embodiments.
Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a series of steps or elements of is not necessarily limited to the expressly listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to the present embodiment, there are provided embodiments of the method and apparatus for determining the remaining amount of oil in air conditioners, it should be noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as sets of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from the order shown.
Fig. 1 is a flowchart of a method for determining the remaining amount of lubricant oil in air conditioners according to an embodiment of the present application, as shown in fig. 1, the method includes the following steps:
and step S102, acquiring at least operating parameters of the air conditioner.
Specifically, the operation parameter may be an operation parameter during operation of the air conditioner, for example, when the parameter is an operation parameter, a sensor in the air conditioner host collects various operation data of the air conditioner during operation of the air conditioner, and collects various operation data collected by the sensor by using the PLC control chip and screens out a parameter required by this embodiment, and the rest air conditioner parameters may be stored in the PLC storage module to be used for implementing other functions.
It should be noted that the sensor for collecting air conditioning parameters may be a sensor integrated with the air conditioning main unit , or may be a split sensor, wherein the split sensor has the advantage that different sensors can be replaced according to different parameter requirements, and meanwhile, in the process of handling sensor failure, the sensor is more convenient and reliable than the sensor integrated with the main unit .
In alternative embodiments of the present application, the operating parameters include at least of compressor operating frequency, inner fan speed, outer fan speed, expansion valve opening, and unit output capacity.
Specifically, the compressor operation frequency is an exchange frequency at which the compressor operates in HZ or MHZ. The rotating speed of the inner fan and the outer fan is the rotating speed of the outdoor fan and the indoor fan of the air conditioner. The opening degree of the expansion valve is the expansion degree of the air-conditioning refrigerant inlet control valve, namely the larger the opening degree of the expansion valve is, the larger the amount of refrigerant entering the air conditioner is. The unit output capacity value is a parameter integrating multiple factors such as power, working efficiency and the like, and represents the integral output capacity of the air conditioner.
Step S104, determining the lubricating oil residual quantity standard value and the output capacity standard value corresponding to at least operating parameters, wherein the lubricating oil residual quantity standard value is the lubricating oil residual quantity standard value of the compressor in the air conditioning equipment
Specifically, a lubricating oil residue standard value and an output capacity standard value can be obtained through a parameter relation corresponding table (table 1), wherein the table 1 is constructed in the following process that ① the compressor is in a factory standard state (the amount of lubricating oil is D)F0) At a frequency of F and a rotation speed of the inner/outer fan of Nn/NwWhen the expansion valve operates under the condition that the opening degree of the expansion valve is B (the air conditioner without the expansion valve does not contain the expansion valve), the air conditioner standard capacity value Q is measured through experimentsF0Compressor standard power value PF0② setting the amount D of lubricating oil in the compressor to a specific amount DFi(DFi＜DF0Calculating to know Bi) In time, the air conditioner was experimentally measured for different parameters (F)i、Nni、Nwi、Bi) When the compressor runs under the condition working condition, the actual running power value P of the compressorFiAnd the current working condition output capacity value Q of the air conditionerFi③ is based on the formula (a)Fi＝(QF0-QFi)/QF0、bFi＝aFi/λFi＝(DF0-DFi)/DF0、λFi＝aFi/bFi、ki＝bFi*δFi＝(PFi-PF0)/PF0、δFi＝ki/bFi＝(PFi-PF0)/PF0/bFi) Calculating to obtain the correlation coefficient value a under each parameter operation conditionFi、bFi、λFi、ki、δFi。
TABLE 1
Note ① QF0、PF0For compressor in factory standard state (lubricating oil D)F0Good condition), at a frequency of F and at an inner/outer fan speed of Nn/NwA reference nominal value (known constant value) determined by experiment when the expansion valve is operated under the working condition of B opening degree, ② QFi、λFi、δFiThe compressor is lack of lubricating oil or oil quality deterioration (lubricating oil quantity D)Fi) In the state, the frequency is F, and the rotating speed of the inner/outer fan is Nn/NwWhen the expansion valve operates under the condition of the opening degree of B, the current working condition capacity parameter value Qi acquired by the air conditioner in real time and the current working condition correlation coefficient value lambda calculated by experimental determinationi、δi(known constant value); ③ QFminRepresenting the current capacity value of the air conditioner as the minimum value, aFmaxRepresenting the maximum attenuation of the current capacity value of the air conditioner, aFi、λFi、bi、QFi、KiThe value ranges are all 0-1.
And step S106, comparing the output capacity value with the output capacity standard value.
Specifically, the air conditioner output capacity value and the air conditioner standard capacity value (obtained by looking up table 1) obtained in S102 and S104 according to this embodiment may be compared by using a PLC chip of model R32 of the operation comparator, and the user may input a preset comparison result by using a PLC programmable logic device, for example, when the air conditioner output capacity value is greater than the air conditioner standard capacity value, the output port of the comparator outputs a "tune" signal, and the PLC processor performs analysis processing of step according to the signal output by the comparator.
It should be noted that, the comparator and the timer can be jointly arranged in the PLC chipset, when the air conditioner output capacity value and the air conditioner standard capacity value are input to the input end of the comparator, the timer starts to time, and the PLC can judge whether the two parameters compared by the comparator are collected and calculated at the same time when the air conditioner is running according to the clock signal of the timer, so that the accuracy and consistency of parameter comparison can be improved by arranging timers in linkage with comparators, thereby avoiding confusion of different signals at different times and influence on the final remaining lubricating oil amount calculation result.
And step S108, determining a calculation strategy corresponding to the comparison result.
In embodiments of the present application, the calculation strategy may be determined by determining to calculate the lube oil margin using a calculation strategy when the comparison result indicates that the output capability value is not less than the output capability criterion value, wherein the calculation strategy is used to determine the lube oil margin of the compressor based on the lube oil margin criterion value.
In alternative embodiments, the calculation strategy includes determining the lube oil level criterion as the lube oil level for the compressor.
In the related technology, a power measuring method of a compressor is high in cost or a calculating method of the power measuring method is complex, and a calculating result is inaccurate, in order to solve the problems, the embodiment of the application provides determination schemes of the power of the compressor, specifically, when a lubricating oil allowance standard value and an output capacity standard value corresponding to at least operating parameters are determined, a standard power value of the compressor corresponding to at least operating parameters is obtained, and when a comparison result indicates that the output capacity value is not less than the output capacity standard value, the standard power value is determined as a current power value of the compressor.
Specifically, the parameter comparison module outputs a capacity value Q to the air conditioning unit in real timeiThe size is judged to beDetermine whether Q is satisfiedi＜QF0And executing the corresponding flow steps:
if Q is judgedi≥QF0If the compressor lubricating oil state is consistent with the factory parameter and the performance is good, the following steps are executed:
the air conditioning unit continues to operate in the current control state, and the parameter value D is obtainedF0、PF0The real-time power value and the residual value of the refrigeration oil of the compressor are used as the real-time power value and the residual value of the refrigeration oil and are output;
storing and recording compressor parameter value DF0、PF0Displaying the residual value DF0 of the compressor refrigeration oil and the real-time running power value P of the compressor at present of the air conditionerF0。
In still other embodiments of the present application, when the comparison result indicates that the output capability value is less than the output capability criterion value, determining to calculate the remaining amount of lubricant oil using a second calculation strategy, wherein the second calculation strategy calculates the remaining amount of lubricant oil of the compressor based on the remaining amount of lubricant oil criterion value, the output capability criterion value, and the current output capability value of the air conditioner.
Specifically, the second calculation policy includes: calculating a lubricating oil margin of the compressor by the following formula: di＝[1-(QF0-Qi)/λFi/QF0]*DF0Wherein D isiDenotes the remaining amount of lubricating oil, Q, of the compressorF0Represents the standard value of the output capability, QiRepresenting the current output capability value of the air conditioner, DF0Indicating the remaining amount of the lubricating oil.
In order to ensure the safe operation of the air conditioner, when the comparison result indicates that the output capacity value is smaller than the output capacity standard value, the residual quantity of the lubricating oil of the compressor is compared with a preset threshold value; when the comparison result indicates that the residual quantity of the lubricating oil of the compressor is larger than the preset threshold value, controlling the air conditioner to continuously operate according to the current operation state; and when the comparison result indicates that the residual quantity of the lubricating oil of the compressor is smaller than the preset threshold value, controlling the air conditioner to give an alarm.
Specifically, if Q is judgedi≥QF0I.e. the compressor lubricant is missing or its performance is degraded, the following process steps are performed:
A) according to formula PFi＝(1+ki)*PF0＝[1+(QF0--Qi-)*δFi/λFi/QF0]*PF0Calculating the current real-time operation power value P of the compressor of the air conditionerFiAnd according to formula Di＝(1-bFi)*DF0＝[1-(QF0-Qi)/λFiQF0]*DFCalculating the current residual value D of the refrigeration oil of the air-conditioning compressori；
B) Judging whether the residual quantity of the refrigeration oil of the compressor reaches a threshold value condition, namely whether the condition D is meti≤Df；
① if D is judgedi≤DfIf the residual quantity of the refrigerant oil of the compressor reaches the threshold value condition, alarming and triggering the air conditioner compressor to stop for protection; storing and recording compressor parameter value Di、PFiDisplaying the residual value D of the refrigerant oil of the compressor at presentiReal-time running power value P of compressorFi；
② if D is judgedi＞DfNamely the residual quantity of the refrigeration oil of the compressor does not reach the threshold value condition, the air conditioning unit continues to operate in the current control state, and returns to the step 2, and meanwhile, the parameter value D of the compressor is stored and recordedi、PFiDisplaying the residual value D of the refrigerant oil of the compressor at presentiReal-time running power value P of compressorFi。
Optionally, to avoid unnecessary loss of the compressor at step , the method further includes controlling the compressor to stop operating when the comparison result indicates that the remaining amount of oil in the compressor is less than the preset threshold.
Specifically, when the residual quantity of the lubricating oil is smaller than the standard value, the fact that the lubricating oil of the air conditioning unit is insufficient is explained, and the risk of damage of the air conditioning unit is increased if the compressor of the air conditioning unit is continuously operated, so that when the fact that the actual lubricating oil in the air conditioning unit is lower than the standard value is judged, the measure of stopping the operation of the compressor is taken, and the result that the air conditioning unit is damaged due to lack of lubrication is avoided.
It should be noted that, in the embodiment of the present invention, when the PLC processor determines that the actual lubricating oil in the air conditioning unit is lower than the standard value, the air conditioning unit may further issue a buzzer alarm to prompt the user that the unit needs to be added with a lubricant, and simultaneously, a prompt icon that the lubricating oil needs to be maintained and added is displayed on the display window of the air conditioning remote controller.
In addition, it should be noted that, in the above embodiment, the alarm may further include a wireless communication prompt function, and reports the condition that the air conditioning unit lacks lubricating oil to the user terminal in a short message manner, so that the user knows the message that the air conditioner needs to be maintained at , thereby avoiding unnecessary loss in step .
And step S110, determining the lubricating oil allowance of the compressor by adopting a determined calculation strategy based on at least in the lubricating oil allowance standard value, the output capacity standard value and the current output capacity value of the air conditioner.
The output capacity value may be expressed by a cooling capacity or a heating capacity of the compressor, or may be expressed in the following form: the air conditioner complete machine energy efficiency parameter COP/EER, the air conditioner complete machine power parameter PZ, the air conditioner external machine power parameter PW, the indoor machine pipe temperature Tn (heating mode), the outdoor machine pipe temperature Tw (cooling mode) and the like.
As shown in fig. 2, the present application provides alternative methods for determining the remaining amount of lubricant, which includes the following steps:
step S202, presetting a parameter relation corresponding table;
step S204, presetting a residual quantity threshold D of the refrigerant oil of the air-conditioning compressorf；
Step S206, the air conditioner is started (cooled/heated) to normally run;
step S208, collecting the air conditioner parameter value F at the current momenti、Nni、Nwi、Bi；
Step S210, obtaining the factory nominal parameter value D of the compressor refrigerating machine oilF0And according to the parameter Fi、Nni、Nwi、BiMatching the air conditioner delivery standard ability value Q by looking up the tableF0Standard power value PF0And correlation coefficient parameter value deltaFi、λFi；
Step S212, judge Qi＜QF0；
Step S214, the performance of the compressor is good due to the condition of the compressor refrigeration oil and factory parameters ;
step S216, the air conditioner continues to normally operate in the current control state;
step S218, the parameter value P is setF0、DF0Outputting the real-time power value and the residual value of the refrigeration oil of the compressor;
step S220, the compressor refrigeration oil is lack or the performance of the compressor refrigeration oil is reduced;
step S222, according to the formula PFi＝(1+ki)*PF0Calculating the current real-time operation power value P of the compressor of the air conditionerFiAccording to formula Di＝(1-bFi)*DF0Calculating the current refrigerating oil allowance value Di of the air-conditioning compressor;
step S224, judge Di≤Df
Step S226, a protection alarm is carried out, and the air conditioner compressor is triggered to be protected and shut down
Step S228, the air conditioner continues to normally operate in the current control state
Step S230, storing the recording parameter value PFi、DiDisplaying the current real-time running power value P of the compressor of the air conditionerFiResidual value D of refrigeration oili；
The embodiment of the application also provides an device for determining the lubricating oil residual quantity in the air conditioner, which is used for realizing the method shown in fig. 1 or fig. 2, and as shown in fig. 3, the device comprises an obtaining module 30 for obtaining at least operating parameters of the air conditioner, a th determining module 32, a comparing module 34, a second determining module 36 and a third determining module 38, wherein:
the obtaining module 30 is used for obtaining at least operating parameters of the air conditioner.
For example, when the sensor collects the air-conditioning parameter as the air-conditioning standby parameter, the air-conditioning host can start only or some sensors according to the setting of the user to collect necessary parameters in the standby state and collect the collected data to the PLC chip for processing.
It should be noted that the sensor for collecting air conditioning parameters may be a sensor integrated with the air conditioning main unit , or may be a split sensor, wherein the split sensor has the advantage that different sensors can be replaced according to different parameter requirements, and meanwhile, in the process of handling sensor failure, the sensor is more convenient and reliable than the sensor integrated with the main unit .
Optionally, the operating parameters include at least of an operating frequency of the compressor, an inner fan speed, an outer fan speed, an expansion valve opening, a unit output capacity value.
Specifically, the compressor operation frequency is an exchange frequency at which the compressor operates in HZ or MHZ. The rotating speed of the inner fan and the outer fan is the rotating speed of the outdoor fan and the indoor fan of the air conditioner. The opening degree of the expansion valve is the expansion degree of the air-conditioning refrigerant inlet control valve, namely the larger the opening degree of the expansion valve is, the larger the amount of refrigerant entering the air conditioner is. The unit output capacity value is a parameter integrating multiple factors such as power, working efficiency and the like, and represents the integral output capacity of the air conditioner.
An determining module 32 for determining the residual quantity of lubricant standard value and the output capacity standard value corresponding to at least operation parameters, wherein the residual quantity of lubricant standard value is the residual quantity standard value of the compressor in the air conditioning equipment
And the comparison module 34 is used for comparing the output capacity value with the output capacity standard value.
And a second determining module 36, configured to determine a calculation strategy corresponding to the comparison result.
And a third determination module 38 for determining the remaining amount of oil in the compressor using the determined calculation strategy based on at least of the remaining amount of oil criterion value, the output capability criterion value, and the current output capability value of the air conditioner.
The embodiment of the application also provides nonvolatile storage media comprising a stored program, wherein the program controls equipment where the storage media are located to execute the task testing method when running, for example, the following steps can be executed, namely, at least operating parameters of an air conditioner are obtained, a lubricating oil residue standard value and an output capacity standard value which correspond to the at least operating parameters are determined, wherein the lubricating oil residue standard value is a lubricating oil residue standard value of a compressor in the air conditioner, the output capacity value and the output capacity standard value are compared, a calculation strategy corresponding to a comparison result is determined, and residual lubricating oil of the compressor is determined by adopting the determined calculation strategy on the basis of at least of the lubricating oil residue standard value, the output capacity standard value and the current output capacity value of the air conditioner.
The embodiment of the application also provides processors, and the processors are used for running a program, wherein the task testing method is executed when the program runs.
The embodiment of the application also provides another types of air-conditioner lubricating oil allowance determination methods, which comprise the steps of obtaining a lubricating oil allowance standard value and an output capacity standard value of an air conditioner, comparing the output capacity value with the output capacity standard value, determining a calculation strategy corresponding to a comparison result, and determining the lubricating oil allowance of a compressor by adopting the determined calculation strategy based on at least of the lubricating oil allowance standard value, the output capacity standard value and the current output capacity value of the air conditioner.
Through the embodiment, the task preprocessing is adopted, the task type is divided, the task priority is set, the task scheduling is optimized by using the delay principle, and meanwhile, the task processing process is completed by using the multi-task processing stage. Therefore, the method and the device solve the technical problems of low task scheduling efficiency, untimely emergency task processing and low task communication switching efficiency in the related technology, improve the task scheduling efficiency, make up the defects of the prior art for emergency task processing, and improve the quality of communication and switching among tasks.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in this application, it should be understood that the disclosed technology can be implemented in other manners, wherein the above-described device embodiments are merely illustrative, for example, the division of the units can be logical function divisions, and other divisions can be realized in practice, for example, multiple units or components can be combined or integrated into another systems, or features can be omitted or not executed, in another point, the shown or discussed coupling or direct coupling or communication connection between each other can be through interfaces, indirect coupling or communication connection of units or modules, and can be electric or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in places, or may also be distributed on multiple units.
In addition, the functional units in the embodiments of the present application may be integrated into processing units, or each unit may exist alone physically, or two or more units are integrated into units.
Based on the understanding, the technical solution of the present application, in essence or a part contributing to the related art, or all or part of the technical solution, may be embodied in the form of a software product stored in storage media, which includes several instructions for making computer devices (which may be personal computers, servers, or network devices, etc.) execute all or part of the steps of the methods described in the embodiments of the present application.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (13)
1, method for determining the residual quantity of lubricating oil in air conditioner, characterized in that the method includes:
acquiring at least operating parameters of the air conditioner;
determining a lubricating oil residue standard value and an output capacity standard value corresponding to the at least operating parameters, wherein the lubricating oil residue standard value is a lubricating oil residue standard value of a compressor in the air conditioning equipment;
comparing the output capacity value with an output capacity standard value;
determining a calculation strategy corresponding to the comparison result;
determining the remaining amount of the lubricant oil of the compressor using the determined calculation strategy based on at least of the remaining amount of the lubricant oil criterion value, the output capability criterion value, and the current output capability value of the air conditioner.
2. The method of claim 1, wherein determining a computational strategy corresponding to the comparison comprises:
and when the comparison result indicates that the output capacity value is not less than the output capacity standard value, determining to adopt an th calculation strategy for calculating the lubricating oil residual quantity, wherein the th calculation strategy is used for determining the lubricating oil residual quantity of the compressor based on the lubricating oil residual quantity standard value.
3. The method of claim 2, wherein said th calculation strategy includes determining said lube oil level criterion as a lube oil level of said compressor.
4. The method of claim 2,
when determining the residual lubricating oil quantity standard value and the output capacity standard value corresponding to the at least operation parameters, the method further comprises the steps of obtaining the standard power value of the compressor corresponding to the at least operation parameters;
the method further comprises the following steps: and when the comparison result indicates that the output capacity value is not less than the output capacity standard value, determining the standard power value as the current power value of the compressor.
5. The method of claim 1, wherein determining a computational strategy corresponding to the comparison comprises:
and when the comparison result indicates that the output capacity value is smaller than the output capacity standard value, determining to adopt a second calculation strategy to calculate the lubricating oil allowance, wherein the second calculation strategy calculates the lubricating oil allowance of the compressor based on the lubricating oil allowance standard value, the output capacity standard value and the current output capacity value of the air conditioner.
6. The method of claim 5, wherein the second computational strategy comprises: calculating a lubricating oil margin of the compressor by the following formula:
Di＝[1-(QF0-Qi)/λFi/QF0]*DF0
wherein D isiDenotes the remaining amount of lubricating oil, Q, of the compressorF0Represents the standard value of the output capability, QiRepresenting the current output capability value of the air conditioner, DF0Denotes the remaining amount of the lubricating oil, lambdaFiIs a constant.
7. The method of claim 5, wherein when the comparison result indicates that the output capability value is less than the output capability criterion value, the method further comprises:
comparing the residual quantity of the lubricating oil of the compressor with a preset threshold value;
when the comparison result indicates that the residual quantity of the lubricating oil of the compressor is larger than the preset threshold value, controlling the air conditioner to continuously operate according to the current operation state; and when the comparison result indicates that the residual quantity of the lubricating oil of the compressor is smaller than the preset threshold value, controlling the air conditioner to give an alarm.
8. The method of claim 7, wherein when the comparison result indicates that the remaining amount of lubricant oil of the compressor is less than the preset threshold, the method further comprises:
and controlling the compressor to stop running.
9. The method of any of , wherein the operating parameters include at least of compressor operating frequency, inner fan speed, outer fan speed, expansion valve opening, and unit output capability value.
10, method for determining the residual quantity of lubricating oil in air conditioner, characterized in that the method includes:
obtaining a lubricating oil allowance standard value and an output capacity standard value of an air conditioner, wherein the lubricating oil allowance standard value is a lubricating oil allowance standard value of a compressor in the air conditioning equipment;
comparing the output capacity value with an output capacity standard value;
determining a calculation strategy corresponding to the comparison result;
determining the remaining amount of the lubricant oil of the compressor using the determined calculation strategy based on at least of the remaining amount of the lubricant oil criterion value, the output capability criterion value, and the current output capability value of the air conditioner.
An apparatus for determining the remaining amount of lubricant in an air conditioner of the type , comprising:
the acquisition module is used for acquiring at least operating parameters of the air conditioner;
an determining module, configured to determine a remaining oil standard value and an output capacity standard value corresponding to the at least operating parameters, where the remaining oil standard value is a remaining oil standard value of a compressor in the air conditioning equipment;
the comparison module is used for comparing the output capacity value with the output capacity standard value;
the second determining module is used for determining a calculation strategy corresponding to the comparison result;
and a third determination module for determining the remaining amount of the lubricant for the compressor using the determined calculation strategy based on at least of the remaining amount of the lubricant criterion value, the output capability criterion value, and the current output capability value of the air conditioner.
12, nonvolatile storage media, wherein the nonvolatile storage media includes a stored program, and wherein the program is operative to control a device in which the nonvolatile storage media is located to perform the method for determining the remaining amount of lubricating oil in an air conditioner according to any of claims 1 to 9.
A processor of , wherein the processor is configured to run a program, wherein the program is run to execute the method for determining the remaining amount of lubricant in an air conditioner according to any of claims 1 to 9.
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