CN110736239B - 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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- CN110736239B CN110736239B CN201911039306.7A CN201911039306A CN110736239B CN 110736239 B CN110736239 B CN 110736239B CN 201911039306 A CN201911039306 A CN 201911039306A CN 110736239 B CN110736239 B CN 110736239B
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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
Abstract
The application discloses a method for determining the residual quantity of lubricating oil in an air conditioner, which comprises the following steps: acquiring at least one operating parameter of an air conditioner; determining a lubricating oil allowance standard value and an output capacity standard value corresponding to at least one operating parameter, wherein the lubricating oil allowance standard value is a lubricating oil allowance standard value of a compressor in air conditioning equipment; 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 allowance of the compressor by adopting the determined calculation strategy based on at least one of the lubricating oil allowance standard value, the output capacity standard value and the current output capacity value of the air conditioner. The method solves the technical problem that the detection and control method for the lubricating oil allowance of the compressor in the prior art is incomplete.
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 an air conditioner.
Background
With the development and application of an automatic testing system, a traditional testing unit is continuously developed towards the direction of full automation of testing, so that the factor of manual intervention is reduced. Generally, a programmable controller adopts a programming language specified by IEC61131, the program test is carried out in the programming environment of an upper computer, and the running program of the lower computer can be debugged by means of setting breakpoints, single step execution and the like, so that functions such as monitoring state, monitoring data, tracking variables and the like are realized. However, the testing method can realize on-line testing, but cannot meet the requirement of long-time automation of the lower computer system, for example, the automation of a testing program is carried out in different operation periods and different operation states according to different input data. Another method is to provide a simulation mode in the upper computer programming environment, simulate the running environment of the lower computer system, and run a program in the upper computer, so as to achieve the purpose of testing, but due to the difference of the running environments of the upper and lower computer systems, such as: the real-time performance, storage, input and output, hardware conditions and the like of the operating system cannot simulate the system environment completely the same as that of a lower computer, so that certain test functions cannot be realized.
With the continuous development of the field of automatic detection, the methods for determining the real-time power of the compressor of the refrigerator or the air conditioner are mainly classified into two types, one is to detect the real-time power of the compressor through a related detection device (for example, detect an effective current value I and a voltage value U, and then calculate the power P ═ UI); the other type is that the relevant power calculation formula is fitted based on the big data of the operation of the compressor, and then the power of the compressor is directly calculated through the relevant fitting formula. However, both methods have certain problems, and the method of 'detecting power' inevitably needs to add an additional detecting device, thereby increasing the manufacturing cost and the selling price, and causing the manufacturer and the user to be dissatisfied; secondly, the method of "calculating 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 not accurate. Thus, both methods are not perfect.
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 method and a device for determining the residual quantity of lubricating oil in an air conditioner, which are used for at least solving the technical problem that the detection and control method for the residual quantity of the lubricating oil of a compressor in the prior art is incomplete.
According to an aspect of an embodiment of the present application, there is provided a method for determining a remaining amount of lubricant in an air conditioner, including: acquiring at least one operating parameter of an air conditioner; determining a lubricating oil allowance standard value and an output capacity standard value corresponding to the at least one operating parameter, 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; and determining the lubricating oil allowance of the compressor by adopting the determined calculation strategy based on at least one of the lubricating oil allowance standard value, the output capacity standard value and the current output capacity value of the air conditioner.
Optionally, determining a calculation policy corresponding to the comparison result includes: and when the comparison result indicates that the output capacity value is not less than the output capacity standard value, determining to adopt a first calculation strategy to calculate the lubricating oil allowance, wherein the first calculation strategy is used for determining the lubricating oil allowance of the compressor based on the lubricating oil allowance standard value.
Optionally, the first calculation strategy comprises: and determining the lubricating oil residual standard value as the lubricating oil residual of the compressor.
Optionally, when determining the remaining oil level criterion value and the output capacity criterion value corresponding to the at least one operating parameter, the method further comprises: acquiring a standard power value of the compressor corresponding to at least one operation parameter; 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.
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 parameter comprises at least one of: the running frequency of the compressor, the rotating speed of the inner fan, the rotating speed of the outer fan, the opening degree of the expansion valve and the output capacity value of the unit.
According to another aspect of the embodiments of the present application, there is also provided an apparatus for determining a remaining amount of lubricating oil in an air conditioner, including: the acquisition module is used for acquiring at least one operating parameter of the air conditioner; the first determining module is used for determining a lubricating oil allowance standard value and an output capacity standard value corresponding to at least one operating parameter, wherein the lubricating oil allowance standard value is a lubricating oil allowance standard value of a compressor in 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 the third determination module is used for determining the lubricating oil allowance of the compressor by adopting the determined calculation strategy based on at least one of the lubricating oil allowance standard value, the output capacity standard value and the current output capacity value of the air conditioner.
According to another aspect of the embodiments of the present application, there is also provided a method for determining a remaining amount of lubricating oil in an air conditioner, the method including: acquiring 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 air conditioning equipment; 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 allowance of the compressor by adopting the determined calculation strategy based on at least one of the lubricating oil allowance standard value, the output capacity standard value and the current output capacity value of the air conditioner.
According to another aspect of the embodiments of the present application, there is also provided a non-volatile storage medium, which includes a stored program, wherein the program controls a device in which the storage medium is located to execute the method for determining the remaining amount of lubricating oil in the air conditioner when the program runs.
According to another aspect of the embodiments of the present application, there is also provided a processor for executing a program, where the program executes the method for determining the remaining amount of lubricating oil in an 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 included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a flowchart of a method for determining a remaining amount of lubricant in an air conditioner 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 of a device for determining the remaining amount of lubricant in an air conditioner according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described 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, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to the embodiments of the present application, there is provided an embodiment of a method and an apparatus for determining a remaining amount of oil in an air conditioner, it should be noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and 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 that shown or described here.
Fig. 1 is a flowchart of a method for determining a remaining amount of lubricant in an air conditioner according to an embodiment of the present application, as shown in fig. 1, the method including the steps of:
step S102, at least one operation parameter of the air conditioner is obtained.
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 conditioner parameters may be a sensor integrated with the air conditioner host or a split sensor, wherein the split sensor has the advantages that different sensors can be replaced according to different parameter requirements, and meanwhile, in the process of processing sensor faults, the sensor is more convenient and reliable than the integrated sensor.
In an alternative embodiment of the present application, the operating parameter comprises at least one of: the running frequency of the compressor, the rotating speed of the inner fan, the rotating speed of the outer fan, the opening degree of the expansion valve and the output capacity value of the unit.
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 a lubricating oil residue standard value and an output capacity standard value corresponding to at least one operating parameter, wherein the lubricating oil residue standard value is a lubricating oil residue standard value of a compressor in air conditioning equipment
Specifically, the lubricating oil residue standard value and the output capacity standard value can be obtained through the parameter relationship correspondence table (table 1), and the table 1 is constructed as follows: 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 PF0(ii) a ② setting the lubricating oil quantity D (filling quantity) of compressor to be specific quantity 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 conditionerFi(ii) a ③ according to formula (a)Fi＝(QF0-QFi)/QF0、bFi＝aFi/λFi＝(DF0-DFi)/DF0、λFi＝aFi/bFi、ki＝bFi*Fi＝(PFi-PF0)/PF0、Fi＝ki/bFi＝(PFi-PF0)/PF0/bFi) Calculating to obtain the correlation coefficient value a under each parameter operation conditionFi、bFi、λFi、ki、Fi。
TABLE 1
Note: 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/NwWhen the opening of the expansion valve is operated under the working condition of B, the standard value (known constant value) is determined by experiments; ② QFi、λFi、FiIn the absence of lubricating oil or in the compressor, respectivelyOil deterioration "(amount of lubricating oil 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、i(known constant values); 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 a 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 further analysis processing 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 timing, and the PLC can judge whether the two parameters compared by the comparator are acquired 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 a mode that one timer is linked with one comparator, and confusion of different signals at different times is avoided, and the final lubricating oil residual amount calculation result is influenced.
And step S108, determining a calculation strategy corresponding to the comparison result.
In some embodiments of the present application, the computational policy may be determined by: and when the comparison result indicates that the output capacity value is not less than the output capacity standard value, determining to adopt a first calculation strategy to calculate the lubricating oil allowance, wherein the first calculation strategy is used for determining the lubricating oil allowance of the compressor based on the lubricating oil allowance standard value.
In some alternative embodiments the first computational strategy comprises: and determining the lubricating oil residual standard value as the lubricating oil residual of the compressor.
In the related art, a power measurement method of a compressor is high in cost or a calculation method thereof is complicated, and a calculation result is inaccurate, and in order to solve the above problems, embodiments of the present application provide a determination scheme of compressor power, specifically, when a lubricating oil residue standard value and an output capacity standard value corresponding to at least one operating parameter are determined, a standard power value of the compressor corresponding to the at least one operating parameter is obtained; 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. By adopting the scheme, an air conditioning unit compressor power detection device does not need to be additionally arranged, so that the cost of the air conditioning unit is reduced; the influence of the condition of the refrigeration oil on the performance (power consumption) of the compressor is fully considered, the power measuring and calculating method of the compressor is optimized, and the accuracy of power measuring and calculating is improved.
Specifically, the parameter comparison module outputs a capacity value Q to the air conditioning unit in real timeiThe size is judged to determine whether Q is satisfiedi＜QF0And executing the corresponding flow steps:
if Q is judgedi≥QF0If the state of the compressor lubricating oil is consistent with the factory-leaving parameters and the performance is good, the following process 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 other embodiments of the present application, when the comparison result indicates that the output capability value is less than the output capability standard value, it is determined to calculate the remaining amount of the lubricant oil using a second calculation strategy, wherein the second calculation strategy calculates the remaining amount of the lubricant oil of the compressor based on the remaining amount standard value of the lubricant oil, the output capability standard 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-)*Fi/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；
If D is judgedi≤DfI.e. compressor refrigeration oilWhen the allowance reaches a 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 further avoid unnecessary loss of the compressor, when the comparison result indicates that the remaining amount of lubricating oil of the compressor is less than the preset threshold, the method further includes: and controlling the compressor to stop running.
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 can know the message that the air conditioner needs to be maintained in the first time, and further unnecessary loss is avoided.
And step S110, determining the lubricating oil allowance of the compressor by adopting a determined calculation strategy based on at least one of 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, an alternative method for determining the remaining amount of lubricant oil is provided in the embodiments of the present application, and the method 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 valueFi、λFi；
Step S212, judge Qi＜QF0；
Step S214, the state of the compressor refrigeration oil is consistent with the parameters of delivery, and the performance is good;
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；
An embodiment of the present application further provides a device for determining a remaining amount of lubricating oil in an air conditioner, which is used for implementing the method shown in fig. 1 or fig. 2, and as shown in fig. 3, the device includes: an obtaining module 30, configured to obtain at least one operating parameter of the air conditioner; a first determination module 32, a comparison module 34; a second determination module 36, a third determination module 38. Wherein:
the obtaining module 30 is configured to obtain at least one operating parameter of the air conditioner.
Specifically, the operation parameter may be an operation parameter when the air conditioner operates, or a standby parameter when the air conditioner is in standby, for example, when the parameter is the operation parameter, a sensor in the air conditioner host collects various operation data of the air conditioner when the air conditioner operates, and the PLC control chip is used to summarize various operation data collected by the sensor and screen out a parameter required by this embodiment, and the rest air conditioner parameters may be stored in the PLC storage module for realizing other functions. For another example, when the sensor collects the air conditioner parameters as the air conditioner standby parameters, the air conditioner host can start only one or a few sensors according to the user setting, collect the necessary parameters in the standby state, and gather the collected data to the PLC chip for processing.
It should be noted that the sensor for collecting air conditioner parameters may be a sensor integrated with the air conditioner host or a split sensor, wherein the split sensor has the advantages that different sensors can be replaced according to different parameter requirements, and meanwhile, in the process of processing sensor faults, the sensor is more convenient and reliable than the integrated sensor.
Optionally, the operating parameter comprises at least one of: the running frequency of the compressor, the rotating speed of the inner fan, the rotating speed of the outer fan, the opening degree of the expansion valve and the output capacity value of the unit.
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.
A first determining module 32, configured to determine a standard value of the remaining amount of lubricant and a standard value of the output capacity corresponding to at least one operating parameter, where the standard value of the remaining amount of lubricant is a standard value of the remaining amount of lubricant of a 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 determining module 38, configured to determine the remaining amount of the lubricant oil of the compressor by using the determined calculation strategy based on at least one of the lubricant oil remaining amount standard value, the output capability standard value and the current output capability value of the air conditioner.
The embodiment of the application also provides a nonvolatile storage medium, which comprises a stored program, wherein when the program runs, the device where the storage medium is located is controlled to execute the task testing method. For example, the following steps may be performed: acquiring at least one operating parameter of an air conditioner; determining a lubricating oil allowance standard value and an output capacity standard value corresponding to the at least one operating parameter, 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; and determining the lubricating oil allowance of the compressor by adopting the determined calculation strategy based on at least one of the lubricating oil allowance standard value, the output capacity standard value and the current output capacity value of the air conditioner.
The embodiment of the application further provides a processor, wherein the processor is used for running the program, and the task testing method is executed when the program runs. For example, the following steps may be performed: acquiring at least one operating parameter of an air conditioner; determining a lubricating oil allowance standard value and an output capacity standard value corresponding to the at least one operating parameter, 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; and determining the lubricating oil allowance of the compressor by adopting the determined calculation strategy based on at least one of the lubricating oil allowance standard value, the output capacity standard value and the current output capacity value of the air conditioner.
The embodiment of the application also provides another method for determining the residual quantity of the lubricating oil in the air conditioner, which comprises the following steps: 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; and determining the lubricating oil allowance of the compressor by adopting the determined calculation strategy based on at least one 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 embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
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, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
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 (12)
1. A method for determining a remaining amount of lubricating oil in an air conditioner, the method comprising:
acquiring at least one operating parameter of an air conditioner;
determining a lubricating oil allowance standard value and an output capacity standard value corresponding to the at least one operating parameter, 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 the output capacity standard value;
determining a calculation strategy corresponding to the comparison result;
determining the lubricating oil allowance of the compressor by adopting the determined calculation strategy based on at least one of a lubricating oil allowance standard value, an output capacity standard value and the current output capacity value of the air conditioner;
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.
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 a first calculation strategy to calculate the lubricating oil allowance, wherein the first calculation strategy is used for determining the lubricating oil allowance of the compressor based on the lubricating oil allowance standard value.
3. The method of claim 2, wherein the first computational strategy comprises: and determining the lubricating oil residual quantity standard value as the lubricating oil residual quantity of the compressor.
4. The method of claim 2,
in determining the remaining-oil level criterion value and the output-capability criterion value corresponding to the at least one operating parameter, the method further comprises: acquiring a standard power value of the compressor corresponding to the at least one operating parameter;
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 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, DF0Indicates the remaining amount of the lubricating oilQuantity, λFiIs a constant.
6. The method of claim 1, 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.
7. The method of claim 6, 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.
8. The method of any one of claims 1 to 7, wherein the operating parameters include at least one of: the running frequency of the compressor, the rotating speed of the inner fan, the rotating speed of the outer fan, the opening degree of the expansion valve and the output capacity value of the unit.
9. A method for determining a remaining amount of lubricating oil in an air conditioner, the method comprising:
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 the output capacity standard value;
determining a calculation strategy corresponding to the comparison result;
determining the lubricating oil allowance of the compressor by adopting the determined calculation strategy based on at least one of a lubricating oil allowance standard value, an output capacity standard value and the current output capacity value of the air conditioner;
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.
10. An apparatus for determining a remaining amount of lubricant in an air conditioner, comprising:
the acquisition module is used for acquiring at least one operating parameter of the air conditioner;
the first determining module is used for determining a lubricating oil allowance standard value and an output capacity standard value corresponding to the at least one operating parameter, wherein the lubricating oil allowance standard value is a lubricating oil allowance 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;
a third determining module, configured to determine the remaining amount of the lubricating oil of the compressor by using the determined calculation strategy based on at least one of a lubricating oil remaining amount standard value, an output capability standard value, and a current output capability value of the air conditioner;
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.
11. A non-volatile storage medium, characterized in that the non-volatile storage medium comprises a stored program, wherein the program controls a device in which the non-volatile storage medium is located when running to perform the method for determining the remaining amount of lubricating oil in an air conditioner according to any one of claims 1 to 9.
12. A processor, characterized in that the processor is configured to run a program, wherein the program is executed to execute the method for determining the remaining amount of lubricant in an air conditioner according to any one of claims 1 to 9.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363026A (en) * | 2000-01-21 | 2002-08-07 | 东芝开利株式会社 | Oil amount detector, refrigeration apparatus and air conditioner |
| CN101218433A (en) * | 2005-06-29 | 2008-07-09 | 株式会社前川制作所 | Oil supply method and device for two-stage screw compressor, and method of operating refrigeration device |
| CN102506484A (en) * | 2011-09-30 | 2012-06-20 | 深圳麦克维尔空调有限公司 | Method for realizing circulation and return of lubricating oil of air condition compressors |
| CN102644600A (en) * | 2011-02-16 | 2012-08-22 | 广东美芝制冷设备有限公司 | Enclosed oil quantity optimization method for rotary compressor using hydrocarbon refrigerant |
| CN102679507A (en) * | 2011-03-09 | 2012-09-19 | 三菱电机株式会社 | Air-conditioning apparatus |
| JP2012198020A (en) * | 2012-06-21 | 2012-10-18 | Mitsubishi Heavy Ind Ltd | Air conditioning system and oil return control method of the same |
| CN104749348A (en) * | 2013-12-31 | 2015-07-01 | 丹佛斯（天津）有限公司 | Method for measuring dilutability and viscosity of lubricating oil, control method and module and refrigerating air-conditioning system |
| CN105298587A (en) * | 2015-04-28 | 2016-02-03 | 潍柴动力股份有限公司 | Lubricating oil service life detection method, device and system for engine |
| CN106839330A (en) * | 2017-03-03 | 2017-06-13 | 广东美的暖通设备有限公司 | Oily balance control method and oily balance control device, multi-online air-conditioning system |
| CN107917501A (en) * | 2017-09-29 | 2018-04-17 | 宁波奥克斯电气股份有限公司 | The method for controlling oil return of direct-current variable |
| CN108375256A (en) * | 2018-01-16 | 2018-08-07 | 珠海格力电器股份有限公司 | Air-conditioning automatic oil return control method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160206A (en) * | 2018-02-12 | 2019-08-23 | 青岛海尔空调器有限总公司 | A kind of air-conditioning fault handling method, device and air-conditioning |
| CN109340170A (en) * | 2018-10-31 | 2019-02-15 | 珠海格力电器股份有限公司 | Bearing fueller and method |
| CN109404272A (en) * | 2018-12-04 | 2019-03-01 | 长虹华意压缩机股份有限公司 | A kind of equipment of test compression machine oil drain quantity and refrigeration system oil cycle performance |
-
2019
- 2019-10-29 CN CN201911039306.7A patent/CN110736239B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363026A (en) * | 2000-01-21 | 2002-08-07 | 东芝开利株式会社 | Oil amount detector, refrigeration apparatus and air conditioner |
| CN101218433A (en) * | 2005-06-29 | 2008-07-09 | 株式会社前川制作所 | Oil supply method and device for two-stage screw compressor, and method of operating refrigeration device |
| CN102644600A (en) * | 2011-02-16 | 2012-08-22 | 广东美芝制冷设备有限公司 | Enclosed oil quantity optimization method for rotary compressor using hydrocarbon refrigerant |
| CN102679507A (en) * | 2011-03-09 | 2012-09-19 | 三菱电机株式会社 | Air-conditioning apparatus |
| CN102506484A (en) * | 2011-09-30 | 2012-06-20 | 深圳麦克维尔空调有限公司 | Method for realizing circulation and return of lubricating oil of air condition compressors |
| JP2012198020A (en) * | 2012-06-21 | 2012-10-18 | Mitsubishi Heavy Ind Ltd | Air conditioning system and oil return control method of the same |
| CN104749348A (en) * | 2013-12-31 | 2015-07-01 | 丹佛斯（天津）有限公司 | Method for measuring dilutability and viscosity of lubricating oil, control method and module and refrigerating air-conditioning system |
| CN105298587A (en) * | 2015-04-28 | 2016-02-03 | 潍柴动力股份有限公司 | Lubricating oil service life detection method, device and system for engine |
| CN106839330A (en) * | 2017-03-03 | 2017-06-13 | 广东美的暖通设备有限公司 | Oily balance control method and oily balance control device, multi-online air-conditioning system |
| CN107917501A (en) * | 2017-09-29 | 2018-04-17 | 宁波奥克斯电气股份有限公司 | The method for controlling oil return of direct-current variable |
| CN108375256A (en) * | 2018-01-16 | 2018-08-07 | 珠海格力电器股份有限公司 | Air-conditioning automatic oil return control method and device |
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|---|---|
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