CN116989505B - Control method and control device for detecting and supplementing data cabinet air conditioner refrigerants - Google Patents
Control method and control device for detecting and supplementing data cabinet air conditioner refrigerants Download PDFInfo
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- CN116989505B CN116989505B CN202311252979.7A CN202311252979A CN116989505B CN 116989505 B CN116989505 B CN 116989505B CN 202311252979 A CN202311252979 A CN 202311252979A CN 116989505 B CN116989505 B CN 116989505B
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 27
- 230000008859 change Effects 0.000 claims description 17
- 101100129500 Caenorhabditis elegans max-2 gene Proteins 0.000 claims description 8
- 101100083446 Danio rerio plekhh1 gene Proteins 0.000 claims description 8
- 238000004378 air conditioning Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000013589 supplement Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 33
- 238000001816 cooling Methods 0.000 description 8
- 230000007812 deficiency Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/208—Liquid cooling with phase change
- H05K7/20818—Liquid cooling with phase change within cabinets for removing heat from server blades
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20836—Thermal management, e.g. server temperature control
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method and a control device for detecting and supplementing a refrigerant of an air conditioner of a data cabinet, wherein the control method comprises the following steps: detecting the current internal environment temperature of the data cabinet, and acquiring the current power of the electronic element; when the first n times of data cabinets are started, the difference value between the reference temperature and the current internal environment temperature is within a preset range, and the difference value between the reference power and the current power is at a first time point within the preset range, so that the air conditioner operates with the same operation parameters; and taking the power curve after the first time point in the power curve as a reference power curve, comparing the current power curve with the reference power curve, judging whether the deviation amount of the current power curve and the reference power curve meets the deviation condition, if so, judging that the refrigerant is insufficient, and supplementing the refrigerant to the air conditioner by the refrigerant supplementing device. The invention solves the problem that the running mode of the data cabinet air conditioner is always changed, and whether the air conditioner in the cabinet lacks a refrigerant is difficult to accurately judge.
Description
Technical Field
The invention relates to the technical field of data cabinets, in particular to a control method and a control device for detecting and supplementing refrigerants of an air conditioner of a data cabinet.
Background
In the prior art, under the condition that the indoor air conditioning mode is constant, whether the refrigerant is absent or not can be judged through the difference of the air inlet temperature and the air outlet temperature, and whether the refrigerant needs to be supplemented or not is judged, however, in the data cabinet, the running mode of the air conditioner judges that the heat dissipation requirement changes in real time according to the running state and the load state of the current electronic element, the air inlet temperature and the air outlet temperature also change all the time, and at the moment, whether the refrigerant is absent or not of the air conditioner in the cabinet is difficult to judge accurately.
Disclosure of Invention
The invention solves the problem that the running mode of the data cabinet air conditioner is always changed, and whether the air conditioner in the cabinet lacks a refrigerant is difficult to accurately judge.
In order to solve the above problems, the present invention provides a control method for detecting and supplementing a refrigerant of an air conditioner of a data cabinet, wherein the data cabinet comprises an air conditioner and an electronic component, and the control method comprises: step S1: recording a power curve of the electronic element, a temperature curve of the electronic element, an operation state curve of the air conditioner and an internal environment temperature curve of the data cabinet in the first n times of starting up of the data cabinet, taking initial power of the power curve as first reference power and initial temperature of the internal environment temperature curve as first reference temperature; step S2: starting up the data cabinet; step S3: detecting the current internal environment temperature of the data cabinet, and acquiring the current power of the electronic element; step S4: when the data cabinet is started for the first n times, a first time point is obtained, wherein the difference value between the first reference temperature and the current internal environment temperature is within a first preset range, the difference value between the first reference power and the current power is within a second preset range, and a first air conditioner operation mode under the first time point is read from an operation state curve of the air conditioner; step S5: the air conditioner operates in the first air conditioner operation mode; step S6: and taking the temperature curve after the first time point in the temperature curve as a first reference temperature curve, recording a first current temperature curve of the electronic element, comparing the first current temperature curve with the first reference temperature curve, judging whether the deviation amount of the first current temperature curve and the first reference temperature curve meets a first deviation condition, if so, judging that the refrigerant is insufficient, and supplementing the refrigerant to the air conditioner by the refrigerant supplementing device.
The technical effect achieved after the technical scheme is adopted is as follows: according to the running state of the electronic element, the first air conditioner running mode can adopt a refrigerating mode with parameters such as temperature, wind speed and the like dynamically changed, so that a better cooling effect is achieved on the electronic element; on the basis, the power curve, the temperature curve and the internal environment temperature curve of the electronic element in the first n times of startup are recorded, the electronic element under the same or similar working conditions can be reflected, and then the same first air conditioner operation mode is adopted according to the operation state curve of the air conditioner at the first time point, so that accurate data comparison can be completed under the dynamic operation mode; if the refrigerant is insufficient, the cooling rate of the first current temperature curve is slower than that of the first reference temperature curve, and the temperature of the electronic element which is finally kept constant is higher, so that the first current temperature curve is wholly positioned above the first reference temperature curve, the condition of refrigerant deficiency is dynamically reflected, and the refrigerant can be conveniently and timely supplemented.
Further, the step S5 specifically includes: the air conditioner operates in the first air conditioner operation mode, the operation time is t1, and if t1 meets a first time threshold condition t1 is more than or equal to ta, the step S6 is performed; the step S6 specifically includes: taking a temperature curve of the temperature curve in a ta time period after the first time point as the first reference temperature curve, and recording the current temperature curve of the electronic element in a t1 time period from 0 to ta; where ta is a constant or determined according to the operating state of the electronic component.
The technical effect achieved after the technical scheme is adopted is as follows: if t1 meets the first time threshold condition t1 more than or equal to ta, the air conditioner is operated for enough time, and the difference between the current temperature change of the electronic element and the temperature change of the electronic element in the first reference temperature curve is more obvious, so that the condition of refrigerant loss is accurately reflected.
Further, ta is a point in time when the electronic component reaches a first temperature peak.
The technical effect achieved after the technical scheme is adopted is as follows: when the electronic element does not reach the temperature peak value, the electronic element is still in a heating increasing stage, or cold air blown out by the air conditioner does not have an effective heat dissipation effect on the electronic element, so that the difference value of the first reference temperature curve and the current temperature curve is compared at the moment, the influence of the outside is larger, and the judgment result is inaccurate; when the electronic component reaches the temperature peak value, the temperature of the electronic component tends to be reduced or stabilized, so that the air conditioner has started to generate an effective heat dissipation effect on the electronic component, and the temperature reduction rate of the electronic component can reflect whether the refrigerant is sufficient or not.
Further, ta is a time point when the temperature of the electronic component is maintained unchanged within a preset time.
The technical effect achieved after the technical scheme is adopted is as follows: when the refrigerant is sufficient, the carried cooling capacity is more, the air outlet temperature of the air conditioner is lower, and the time point when the temperature of the electronic element is reduced to a stable value is earlier, so that the ta time point is used as a comparison standard of the first reference temperature curve and the current temperature curve, and whether the refrigerant is sufficient or not can be reflected.
Further, the step S5 further includes: if t1 does not meet the first time threshold condition t1 is more than or equal to ta, performing step S7, step S8, step S9 and step S10; the step S7 includes: detecting the current internal environment temperature of the data cabinet, and acquiring the current power of the electronic element; the step S8 includes: acquiring a second time point, at which the difference value between the internal environment temperature curve and the current internal environment temperature is the same as the current internal environment temperature, and the current power is within a third preset range and the temperature change trend of the electronic element is the same, in the operation process of the data cabinet for the previous n times, and reading a second air conditioner operation mode under the second time point from the operation state curve of the air conditioner; the step S9 includes: the air conditioner operates in the second air conditioner operation mode; the step S10 includes: and taking the temperature curve after the second time point in the temperature curve as a second reference temperature curve, recording a second current temperature curve of the electronic element, comparing the second current temperature curve with the second reference temperature curve, judging whether the deviation amount of the second current temperature curve and the second reference temperature curve meets a second deviation condition, if yes, judging that the refrigerant is insufficient, and supplementing the refrigerant to the air conditioner by the refrigerant supplementing device.
The technical effect achieved after the technical scheme is adopted is as follows: when the running state of the electronic element is changed greatly and the running mode of the air conditioner needs to be automatically regulated, or the current running mode of the first air conditioner is manually closed, the running time t1 has the condition that the first time threshold condition cannot be reached, at the moment, according to the current environment temperature, the current power and the temperature change trend of the electronic element, a second time point with the close working condition can be found in the running process of the previous n times of data cabinets, and then according to the second air conditioner running mode corresponding to the second time point in the running state curve of the air conditioner, the data comparison can be dynamically completed by running the same second air conditioner running mode; if the refrigerant is insufficient, the cooling rate of the second current temperature curve is slower than that of the second reference temperature curve, and the temperature of the electronic element which is finally kept constant is higher, so that the second current temperature curve is wholly positioned above the second reference temperature curve, the condition of refrigerant deficiency is dynamically reflected, and the refrigerant can be conveniently and timely supplemented.
Further, the step S9 specifically includes: the air conditioner operates in the second air conditioner operation mode, the operation time is t2, and if t2 meets a second time threshold condition t2 is more than or equal to tb, the step S10 is performed; if t2 does not meet the second time threshold condition t2 is more than or equal to tb, returning to the step S7; the step S10 specifically includes: taking a temperature curve of the time period tb after the second time point in the temperature curve as the second reference temperature curve, and recording the second current temperature curve of the electronic element in the time period from 0 to tb at t 2; wherein tb is constant or determined according to the operation state of the electronic device.
The technical effect achieved after the technical scheme is adopted is as follows: if t1 meets the first time threshold condition t1 more than or equal to ta, the air conditioner is operated for enough time, and the difference between the current temperature change of the electronic element and the temperature change of the electronic element in the first reference temperature curve is more obvious, so that the condition of refrigerant loss is accurately reflected.
Further, determining whether the deviation between the first current temperature curve and the first reference temperature curve satisfies a first deviation condition, and if so, determining that the refrigerant is insufficient, specifically including: determining a first maximum temperature difference DeltaT between the first current temperature curve and the first reference temperature curve max1 Whether or not to meet DeltaT max1 If the refrigerant is more than T1, judging that the refrigerant is insufficient; wherein T1 is a first temperature threshold; or, determining a first average temperature difference DeltaT between the first current temperature curve and the first reference temperature curve avg1 Whether or not to meet DeltaT avg1 If the refrigerant is more than T2, judging that the refrigerant is insufficient; wherein T2 is a second temperature threshold.
By usingThe technical effect achieved after the technical scheme is that: according to the first maximum temperature difference or the first average temperature difference, the refrigerating effect can be reflected, the larger the first maximum temperature difference or the first average temperature difference is, the worse the refrigerating effect is, and the worse the refrigerating effect is, the less the refrigerant is under the condition that the air conditioner operates in the same first air conditioner operation mode; when meeting DeltaT max1 > T1 or DeltaT avg1 And more than T2, the influence of the refrigerant loss on the refrigerating effect is large, and the refrigerant needs to be timely supplemented.
Further, determining whether the deviation amount of the second current temperature curve and the second reference temperature curve satisfies a second deviation condition, if so, determining that the refrigerant is insufficient, specifically including: determining a second maximum temperature difference DeltaT between the second current temperature curve and the second reference temperature curve max2 Whether or not to meet DeltaT max2 If the refrigerant is more than T3, judging that the refrigerant is insufficient; wherein T3 is a third temperature threshold; or, determining a second average temperature difference DeltaT between the second current temperature curve and the second reference temperature curve avg2 Whether or not to meet DeltaT avg2 If the refrigerant is more than T4, judging that the refrigerant is insufficient; wherein T4 is a fourth temperature threshold.
The technical effect achieved after the technical scheme is adopted is as follows: according to the second maximum temperature difference or the second average temperature difference, the refrigerating effect can be reflected, the larger the second maximum temperature difference or the second average temperature difference is, the worse the refrigerating effect is, and the worse the refrigerating effect is, the less the refrigerant is under the condition that the air conditioner operates in the same second air conditioner operation mode; when meeting DeltaT max2 > T3 or DeltaT avg2 And more than T4, the influence of the refrigerant loss on the refrigerating effect is large, and the refrigerant needs to be timely supplemented.
Further, the refrigerant replenishing device may replenish the air conditioner with refrigerant, and specifically includes: the refrigerant replenishing device adds refrigerant to a refrigerant circulating pipeline between an evaporator and a compressor of the air conditioner, and the refrigerant quantity is positively related to the deviation.
The technical effect achieved after the technical scheme is adopted is as follows: when the refrigerant is insufficient, the refrigerant replenishing device automatically adds the refrigerant to the refrigerant circulating pipeline, and the addition amount of the refrigerant is increased along with the increase of the deviation amount, so that a better replenishing effect is achieved.
The invention also provides a control device for detecting and supplementing the data cabinet air conditioner refrigerant, which is used for realizing the control method provided by any one of the embodiments.
In summary, each of the above technical solutions of the present application may have one or more of the following advantages or beneficial effects: i) The power curve, the temperature curve and the internal environment temperature curve of the electronic element in the starting process for n times are recorded, the electronic element under the same or similar working conditions can be reflected, and then the same first air conditioner operation mode is adopted according to the operation state curve of the air conditioner at the first time point, so that the condition of refrigerant deficiency can be accurately judged in the dynamic operation mode, and the refrigerant can be conveniently and timely supplemented; ii) the air conditioner runs for enough time, and the difference between the current temperature change of the electronic element and the temperature change of the electronic element in the first reference temperature curve is more obvious, so that the condition of refrigerant missing is accurately reflected.
Drawings
FIG. 1 is a flow chart of a control method for detecting and supplementing the refrigerant of an air conditioner of a data cabinet;
fig. 2 is a schematic structural diagram of a data cabinet according to the present invention.
Reference numerals illustrate:
100-data cabinets; 110-air conditioning; 120-electronic components.
Detailed Description
The invention aims to provide a control method for detecting and supplementing the refrigerant of a data cabinet air conditioner, which is used for accurately reflecting the missing condition of the refrigerant under the dynamic operation mode of the data cabinet air conditioner and is convenient for timely supplementing the refrigerant.
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Referring to fig. 1-2, the invention provides a control method for detecting and supplementing refrigerant of an air conditioner of a data cabinet, wherein the data cabinet comprises an air conditioner and electronic elements, and the control method comprises the following steps:
step S1: recording a power curve of an electronic element, a temperature curve of the electronic element, an operation state curve of an air conditioner and an internal environment temperature curve of a data cabinet in the first n times of starting, taking initial power of the power curve as first reference power and initial temperature of the internal environment temperature curve as first reference temperature;
step S2: starting up the data cabinet;
step S3: detecting the current internal environment temperature of the data cabinet, and acquiring the current power of the electronic element;
step S4: when the first n times of data cabinets are started, a first time point that the difference value between the first reference temperature and the current internal environment temperature is in a first preset range and the difference value between the first reference power and the current power is in a second preset range is obtained, and a first air conditioner operation mode at the first time point is read from an operation state curve of the air conditioner;
step S5: the air conditioner operates in a first air conditioner operation mode;
step S6: and taking a temperature curve after a first time point in the temperature curve as a first reference temperature curve, recording a first current temperature curve of the electronic element, comparing the first current temperature curve with the first reference temperature curve, judging whether the deviation amount of the first current temperature curve and the first reference temperature curve meets a first deviation condition, if so, judging that the refrigerant is insufficient, and supplementing the refrigerant to the air conditioner by the refrigerant supplementing device.
In this embodiment, according to the operation state of the electronic component, the first air-conditioning operation mode may adopt a refrigeration mode in which parameters such as temperature and wind speed dynamically change, so as to achieve a better cooling effect on the electronic component; on the basis, the power curve, the temperature curve and the internal environment temperature curve of the electronic element in the first n times of startup are recorded, the electronic element under the same or similar working conditions can be reflected, and then the same first air conditioner operation mode is adopted according to the operation state curve of the air conditioner at the first time point, so that accurate data comparison can be completed under the dynamic operation mode; if the refrigerant is insufficient, the cooling rate of the first current temperature curve is slower than that of the first reference temperature curve, and the temperature of the electronic element which is finally kept constant is higher, so that the first current temperature curve is wholly positioned above the first reference temperature curve, the condition of refrigerant deficiency is dynamically reflected, and the refrigerant can be conveniently and timely supplemented.
In a specific embodiment, step S5 specifically includes: the air conditioner operates in a first air conditioner operation mode, the operation time is t1, and if t1 meets a first time threshold condition t1 is more than or equal to ta, step S6 is carried out; the step S6 specifically comprises the following steps: taking a temperature curve of a time period ta after a first time point in the temperature curve as a first reference temperature curve, and recording a current temperature curve of the electronic element in a time period t1 from 0 to ta; where ta is a constant or determined according to the operating state of the electronic component.
It should be noted that, if t1 satisfies the first time threshold condition t1 be greater than or equal to ta, the air conditioner has been operated for a sufficient time, and the difference between the current temperature change of the electronic component and the temperature change of the electronic component in the first reference temperature curve is more obvious, so as to accurately reflect the condition of refrigerant loss.
In a specific embodiment, ta is the point in time when the electronic component reaches the first temperature peak.
When the electronic element does not reach the temperature peak value, the electronic element is still in a heating increasing stage, or cold air blown by the air conditioner does not have an effective heat dissipation effect on the electronic element, so that the difference value of the first reference temperature curve and the current temperature curve is compared, the influence from the outside is larger, and the judgment result is inaccurate; when the electronic component reaches the temperature peak value, the temperature of the electronic component tends to be reduced or stabilized, so that the air conditioner has started to generate an effective heat dissipation effect on the electronic component, and the temperature reduction rate of the electronic component can reflect whether the refrigerant is sufficient or not.
Wherein the first temperature peak is a temperature maximum within the preset operating time and the temperature maximum does not occur at the end of the preset operating time.
In another specific embodiment, ta is further a time point when the temperature of the electronic component is maintained for a preset time.
It should be noted that, when the refrigerant is sufficient, the amount of cooling carried by the refrigerant is more, the air outlet temperature of the air conditioner is lower, and the time point when the temperature of the electronic component is reduced to the stable value is earlier, so that the ta time point is used as the comparison standard of the first reference temperature curve and the current temperature curve, and whether the refrigerant is sufficient or not can be reflected.
In a specific embodiment, step S5 further includes: if t1 does not meet the first time threshold condition t1 is more than or equal to ta, performing step S7, step S8, step S9 and step S10;
the step S7 includes: detecting the current internal environment temperature of the data cabinet, and acquiring the current power of the electronic element;
step S8 includes: acquiring a second time point with the same internal environment temperature curve as the current internal environment temperature and the same temperature change trend of the electronic element within a third preset range in the operation process of the first n times of data cabinets, and reading a second air conditioner operation mode under the second time point in an operation state curve of the air conditioner;
step S9 includes: the air conditioner operates in a second air conditioner operation mode;
the step S10 includes: and taking a temperature curve after a second time point in the temperature curve as a second reference temperature curve, recording a second current temperature curve of the electronic element, comparing the second current temperature curve with the second reference temperature curve, judging whether the deviation amount of the second current temperature curve and the second reference temperature curve meets a second deviation condition, if so, judging that the refrigerant is insufficient, and supplementing the refrigerant to the air conditioner by the refrigerant supplementing device.
It should be noted that, when the running state of the electronic component changes greatly, when the air conditioner needs to automatically adjust the running mode, or when the current first air conditioner running mode is manually closed, the running time t1 has the condition that the first time threshold condition cannot be reached, at this time, according to the current environment temperature, the current power and the temperature change trend of the electronic component, a second time point with the working condition close to that of the previous n times of data cabinet can be found in the running process of the data cabinet, and then according to the second air conditioner running mode corresponding to the second time point in the running state curve of the air conditioner, the data comparison can be dynamically completed by running the same second air conditioner running mode; if the refrigerant is insufficient, the cooling rate of the second current temperature curve is slower than that of the second reference temperature curve, and the temperature of the electronic element which is finally kept constant is higher, so that the second current temperature curve is wholly positioned above the second reference temperature curve, the condition of refrigerant deficiency is dynamically reflected, and the refrigerant can be conveniently and timely supplemented.
In a specific embodiment, step S9 specifically includes: the air conditioner operates in a second air conditioner operation mode, the operation time is t2, and if t2 meets a second time threshold condition t2 is more than or equal to tb, step S10 is carried out; if t2 does not meet the second time threshold condition t2 is more than or equal to tb, returning to the step S7; the step S10 specifically includes: taking a temperature curve of a time period tb after a second time point in the temperature curve as a second reference temperature curve, and recording a second current temperature curve of the electronic element in a time period from 0 to tb at t 2; wherein tb is constant or determined according to the operation state of the electronic device.
It should be noted that, if t1 satisfies the first time threshold condition t1 be greater than or equal to ta, the air conditioner has been operated for a sufficient time, and the difference between the current temperature change of the electronic component and the temperature change of the electronic component in the first reference temperature curve is more obvious, so as to accurately reflect the condition of refrigerant loss.
In a specific embodiment, determining whether the deviation between the first current temperature curve and the first reference temperature curve satisfies a first deviation condition, and if so, determining that the refrigerant is insufficient specifically includes: judging a first maximum temperature difference DeltaT between the first current temperature curve and the first reference temperature curve max1 Whether or not to meet DeltaT max1 If the refrigerant is more than T1, judging that the refrigerant is insufficient; wherein T1 is a first temperature threshold; alternatively, a first average temperature difference DeltaT between the first current temperature curve and the first reference temperature curve is determined avg1 Whether or not to meet DeltaT avg1 If the refrigerant is more than T2, judging that the refrigerant is insufficient; wherein T2 is a second temperature threshold.
It should be noted that, according to the first maximum temperature difference or the first average temperature difference, the refrigeration effect may be reflected, the first maximumThe larger the temperature difference or the first average temperature difference is, the worse the refrigerating effect is, and the worse the refrigerating effect is, the less the refrigerant is under the condition that the air conditioner operates in the same first air conditioner operation mode; when meeting DeltaT max1 > T1 or DeltaT avg1 And more than T2, the influence of the refrigerant loss on the refrigerating effect is large, and the refrigerant needs to be timely supplemented.
In a specific embodiment, determining whether the deviation between the second current temperature curve and the second reference temperature curve satisfies a second deviation condition, and if so, determining that the refrigerant is insufficient specifically includes: judging a second maximum temperature difference DeltaT between the second current temperature curve and the second reference temperature curve max2 Whether or not to meet DeltaT max2 If the refrigerant is more than T3, judging that the refrigerant is insufficient; wherein T3 is a third temperature threshold; alternatively, a second average temperature difference DeltaT between the second current temperature curve and the second reference temperature curve is determined avg2 Whether or not to meet DeltaT avg2 If the refrigerant is more than T4, judging that the refrigerant is insufficient; wherein T4 is a fourth temperature threshold.
It should be noted that, according to the second maximum temperature difference value or the second average temperature difference value, the refrigerating effect may be reflected, the greater the second maximum temperature difference value or the second average temperature difference value is, the worse the refrigerating effect is, and the worse the refrigerating effect is, the less the refrigerant is in the case of the same second air-conditioning operation mode of the air-conditioning operation; when meeting DeltaT max2 > T3 or DeltaT avg2 And more than T4, the influence of the refrigerant loss on the refrigerating effect is large, and the refrigerant needs to be timely supplemented.
In a specific embodiment, the refrigerant replenishing device supplements refrigerant for the air conditioner, and specifically includes: the refrigerant replenishing device adds refrigerant to the refrigerant circulating pipeline between the evaporator and the compressor of the air conditioner, and the refrigerant quantity is positively related to the deviation.
When the refrigerant is insufficient, the refrigerant replenishing device automatically adds the refrigerant to the refrigerant circulating pipeline, and the addition amount of the refrigerant is increased along with the increase of the deviation amount, so that a better replenishing effect is achieved.
Preferably, the refrigerant replenishing device comprises a refrigerant storage tank and a control valve, wherein the control valve controls the refrigerant in the refrigerant storage tank to continuously and slowly flow into the refrigerant circulation pipeline, so that the instability of a refrigerant circulation system is avoided.
The invention also provides a control device for detecting and supplementing the data cabinet air conditioner refrigerant, which is used for realizing the control method provided by any one of the embodiments.
In a specific embodiment, the control device comprises a storage module, a detection module, a judgment module, an air conditioner control module and a refrigerant replenishment control module. The storage module is used for storing a power curve of an electronic element, a temperature curve of the electronic element, an operation state curve of an air conditioner and an internal environment temperature curve of the data cabinet in the first n times of startup of the data cabinet; the detection module is used for detecting the current internal environment temperature of the data cabinet and acquiring the current power of the electronic element; the judging module is used for judging whether the deviation amount of the first current temperature curve and the first reference temperature curve meets a first deviation condition or not and judging whether the deviation amount of the second current temperature curve and the second reference temperature curve meets a second deviation condition or not; the air conditioner control module is used for controlling the air conditioner to execute a first air conditioner operation mode or a second air conditioner operation mode; the refrigerant replenishing control module is used for controlling the refrigerant replenishing device to replenish the refrigerant for the air conditioner.
Referring to fig. 2, the present invention further provides a data cabinet 100 for implementing the control method provided in any of the foregoing embodiments. The data cabinet 100 includes an air conditioner 110 and an electronic component 120, wherein the air conditioner 110 includes an evaporator, a compressor, a refrigerant replenishing device, and a refrigerant circulation pipeline communicating the evaporator and the compressor, and the refrigerant replenishing device is communicated with the refrigerant circulation pipeline.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
Claims (8)
1. The control method for detecting and supplementing the air conditioning refrigerants of the data cabinet is characterized in that the data cabinet comprises an air conditioner and electronic elements, and comprises the following steps:
step S1: recording a power curve of the electronic element, a temperature curve of the electronic element, an operation state curve of the air conditioner and an internal environment temperature curve of the data cabinet in the first n times of starting up of the data cabinet, taking initial power of the power curve as first reference power and initial temperature of the internal environment temperature curve as first reference temperature;
step S2: starting up the data cabinet;
step S3: detecting the current internal environment temperature of the data cabinet, and acquiring the current power of the electronic element;
step S4: when the data cabinet is started for the first n times, a first time point is obtained, wherein the difference value between the first reference temperature and the current internal environment temperature is within a first preset range, the difference value between the first reference power and the current power is within a second preset range, and a first air conditioner operation mode under the first time point is read from an operation state curve of the air conditioner;
step S5: the air conditioner operates in the first air conditioner operation mode;
step S6: taking the temperature curve after the first time point in the temperature curve as a first reference temperature curve, recording a first current temperature curve of the electronic element, comparing the first current temperature curve with the first reference temperature curve, judging whether the deviation amount of the first current temperature curve and the first reference temperature curve meets a first deviation condition or not, if yes, judging that the refrigerant is insufficient, and supplementing the refrigerant to the air conditioner by a refrigerant supplementing device;
the determining whether the deviation amount of the first current temperature curve and the first reference temperature curve meets a first deviation condition, if yes, determining that the refrigerant is insufficient, specifically includes:
determining a first maximum temperature difference DeltaT between the first current temperature curve and the first reference temperature curve max1 Whether or not to meet DeltaT max1 If the refrigerant is more than T1, judging that the refrigerant is insufficient; wherein T1 is a first temperature threshold;
or, determining a first average temperature difference DeltaT between the first current temperature curve and the first reference temperature curve avg1 Whether or not to meet DeltaT avg1 If the refrigerant is more than T2, judging that the refrigerant is insufficient; wherein T2 is a second temperature threshold.
2. The control method according to claim 1, wherein the step S5 specifically includes: the air conditioner operates in the first air conditioner operation mode, the operation time is t1, and if t1 meets a first time threshold condition t1 is more than or equal to ta, the step S6 is performed;
the step S6 specifically includes: taking a temperature curve of the temperature curve in a ta time period after the first time point as the first reference temperature curve, and recording the current temperature curve of the electronic element in a t1 time period from 0 to ta;
where ta is a constant or determined according to the operating state of the electronic component.
3. The control method according to claim 2, wherein ta is a point in time at which the electronic component reaches a first temperature peak.
4. The control method according to claim 2, wherein ta is a point in time at which the temperature of the electronic component is maintained for a predetermined time.
5. The control method according to claim 2, characterized in that the step S5 further includes: if t1 does not meet the first time threshold condition t1 is more than or equal to ta, performing step S7, step S8, step S9 and step S10;
the step S7 includes: detecting the current internal environment temperature of the data cabinet, and acquiring the current power of the electronic element;
the step S8 includes: acquiring a second time point, at which the difference value between the internal environment temperature curve and the current internal environment temperature is the same as the current internal environment temperature, and the current power is within a third preset range and the temperature change trend of the electronic element is the same, in the operation process of the data cabinet for the previous n times, and reading a second air conditioner operation mode under the second time point from the operation state curve of the air conditioner;
the step S9 includes: the air conditioner operates in the second air conditioner operation mode;
the step S10 includes: taking the temperature curve after the second time point in the temperature curve as a second reference temperature curve, recording a second current temperature curve of the electronic element, comparing the second current temperature curve with the second reference temperature curve, judging whether the deviation amount of the second current temperature curve and the second reference temperature curve meets a second deviation condition, if yes, judging that the refrigerant is insufficient, and supplementing the refrigerant to the air conditioner by the refrigerant supplementing device;
the determining whether the deviation amount of the second current temperature curve and the second reference temperature curve meets a second deviation condition, if yes, determining that the refrigerant is insufficient, specifically includes:
determining a second maximum temperature difference DeltaT between the second current temperature curve and the second reference temperature curve max2 Whether or not to meet DeltaT max2 If the refrigerant is more than T3, judging that the refrigerant is insufficient; wherein T3 is a third temperature threshold;
or, determining a second average temperature difference DeltaT between the second current temperature curve and the second reference temperature curve avg2 Whether or not to meet DeltaT avg2 If the refrigerant is more than T4, judging that the refrigerant is insufficient; wherein T4 is a fourth temperature threshold.
6. The control method according to claim 5, wherein the step S9 specifically includes: the air conditioner operates in the second air conditioner operation mode, the operation time is t2, and if t2 meets a second time threshold condition t2 is more than or equal to tb, the step S10 is performed; if t2 does not meet the second time threshold condition t2 is more than or equal to tb, returning to the step S7;
the step S10 specifically includes: taking a temperature curve of the time period tb after the second time point in the temperature curve as the second reference temperature curve, and recording the second current temperature curve of the electronic element in the time period from 0 to tb at t 2;
wherein tb is constant or determined according to the operation state of the electronic device.
7. The control method according to claim 5, wherein the refrigerant replenishment device supplements the air conditioner with refrigerant, and specifically comprises:
the refrigerant replenishing device adds refrigerant to a refrigerant circulating pipeline between an evaporator and a compressor of the air conditioner, and the refrigerant quantity is positively related to the deviation.
8. A control device for detecting and supplementing a data cabinet air conditioner refrigerant, which is characterized by being used for realizing the control method according to any one of claims 1-7.
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