CN112050346A - Method, device and equipment for controlling starting number of air conditioning system and air conditioning system - Google Patents
Method, device and equipment for controlling starting number of air conditioning system and air conditioning system Download PDFInfo
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 147
- 238000000034 method Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000007710 freezing Methods 0.000 claims description 33
- 230000008014 freezing Effects 0.000 claims description 33
- 238000005057 refrigeration Methods 0.000 claims description 30
- 230000009467 reduction Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 27
- 238000010586 diagram Methods 0.000 description 12
- 238000004590 computer program Methods 0.000 description 7
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- 238000005265 energy consumption Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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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
- F24F11/88—Electrical aspects, e.g. circuits
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Abstract
The application discloses a method, a device and equipment for controlling the starting number of an air conditioning system and the air conditioning system. The method comprises the following steps: when an air conditioning system is started, according to the current starting time of the air conditioning system, obtaining the refrigerating capacity corresponding to the time which is the same as the starting time from historical data; determining the number of the started units according to the refrigerating capacity; and starting the corresponding air conditioning units according to the determined number of the started units. By adopting the method, the number of the started units can be determined according to historical data when the air conditioning system is just started, and compared with the traditional air conditioning system in which one unit is started before each time, the method is closer to the actual requirement, can quickly reach the required refrigerating capacity, and is beneficial to improving the system efficiency.
Description
Technical Field
The application relates to the field of air conditioner control, in particular to a method, a device and equipment for controlling the starting number of an air conditioner system and the air conditioner system.
Background
For an air conditioning system comprising a plurality of units, when the air conditioning system is started, one unit is generally started, and then load increasing and load reducing control of the units is carried out according to the load of the running units or the outlet water temperature condition of a refrigeration main pipe. In order to ensure the smooth and stable operation of the system, the interval time of the load and unload control is usually not too short.
However, only one unit is started first during each starting, the user requirements are not considered, the refrigerating capacity of one unit may not meet the refrigerating requirements of the user, and whether the started unit is increased or decreased is determined according to the load of the unit only when the set load increase or decrease time interval is reached.
Disclosure of Invention
The embodiment of the application provides a method, a device and equipment for controlling the starting number of an air conditioning system and the air conditioning system, and is used for solving the problem of low system efficiency caused by starting only one unit each time the air conditioning system is started in the traditional scheme.
In a first aspect, an embodiment of the present application provides a method for controlling a number of air conditioners during startup, including:
when an air conditioning system is started, according to the current starting time of the air conditioning system, obtaining the refrigerating capacity corresponding to the time which is the same as the starting time from historical data;
determining the number of the started units according to the refrigerating capacity;
and starting the corresponding air conditioning units according to the number of the started units.
In one possible implementation, the method further includes:
if the refrigerating capacity is not obtained, according to the current starting time of the air conditioning system, obtaining the water outlet temperature of the main freezing pipe corresponding to the same time as the current starting time from historical data;
and determining the number of the started units according to the water outlet temperature of the freezing main pipe.
In a possible implementation manner, the determining the number of the units to be turned on according to the outlet water temperature of the freezing main pipe includes:
determining a target temperature interval in which the outlet water temperature of the freezing main pipe is located according to a plurality of preset temperature intervals;
and determining the number of the started units corresponding to the target temperature interval.
In a possible implementation manner, the boundary value of every two adjacent temperature intervals in the preset multiple temperature intervals is determined according to the set outlet water temperature of the freezing main pipe, the rated refrigerating capacity of each air conditioning unit in the air conditioning system, and the instantaneous flow rate of the freezing main pipe.
In one possible implementation, the method further includes:
and if the outlet water temperature of the freezing main pipe is not obtained, the default number of air conditioning units is determined to be started.
In a possible implementation manner, after the corresponding air conditioning units are started according to the number of started units, the method further includes:
and if the load value of each started air conditioning unit is greater than or equal to the set load value, determining that the requirement for increasing the number of the started units exists.
In a possible implementation manner, if the air conditioning system includes at least one large unit and at least one small unit, and the rated cooling capacity of the large unit is greater than that of the small unit, after determining that there is a need to increase the number of units that are turned on, the method further includes:
if the air conditioning unit which is not started currently comprises a small unit, taking the small unit as a unit which is started in an increasing mode; or
And if the air conditioning unit which is not started currently does not comprise the small unit, taking the large unit with the shortest running time as the unit which is started in an increasing mode.
In a possible implementation manner, after the corresponding air conditioning units are started according to the number of started units, the method further includes:
determining a machine load reduction value according to the number of the currently started machine sets, a set machine load adding value and a set deviation value;
and if the load value of each started air conditioning unit is less than or equal to the reduced load value, determining that the requirement for reducing the number of the started units exists.
In a possible implementation manner, the determining an engine load reduction value according to the number of currently started units, the set engine load addition value, and the set deviation value includes:
determining a reduced engine load value according to the following formula:
Y＝(1-1/(2a+b))X-N
wherein, Y represents the engine load reducing value, a represents the number of the opened large units, b represents the number of the opened small units, X represents the set engine load increasing value, and N represents the set deviation value.
In a possible implementation manner, if the air conditioning system includes at least one large unit and at least one small unit, and the rated cooling capacity of the large unit is greater than that of the small unit, after determining that there is a need to reduce the number of units that are turned on, the method further includes:
if only one large unit is opened currently, the opened large unit is closed and the small unit is opened; or
If only one small unit is opened currently, the opened small unit and the water supply pipeline are closed.
In a possible implementation manner, the refrigeration capacity corresponding to the time equal to the opening time is the refrigeration capacity in the same time period as the time period of the opening time, or the refrigeration capacity at the same time point as the opening time.
In a second aspect, an embodiment of the present application further provides an air conditioning system startup number control device, including:
the system comprises an acquisition module, a storage module and a control module, wherein the acquisition module is used for acquiring refrigerating capacity corresponding to the same time as the starting time from historical data according to the current starting time of the air conditioning system when the air conditioning system is started;
the determining module is used for determining the number of the started units according to the refrigerating capacity;
and the starting module is used for starting the corresponding air conditioning units according to the number of the started units.
In a third aspect, an embodiment of the present application further provides an air conditioning system startup number control device, including: the processor calls the program stored in the memory to execute the method for controlling the number of the started air conditioning systems according to any implementation mode of the first aspect.
In a fourth aspect, an embodiment of the present application provides an air conditioning system, which includes at least two air conditioning units and the air conditioning system startup number control device according to the third aspect.
In the embodiment of the application, when the air conditioning system is started, the number of the units which need to be started at present is predicted according to the refrigerating capacity of the historical data at the same time, and the units with the corresponding number are started. Under general conditions, the refrigeration demands at the same time every day are not greatly different, so that compared with the traditional air conditioning system that one unit is started at first when the air conditioning system is started at each time, the scheme of predicting the starting quantity according to historical data in the embodiment of the application is closer to the actual demand, the required refrigeration quantity can be reached quickly, and the system efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart illustrating a method for controlling the number of air conditioners according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a device for controlling the number of start-ups of an air conditioning system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an air conditioning system startup number control device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.
The traditional air conditioning system starting control process cannot intelligently match working conditions, cannot quickly meet the requirement of the cold quantity at the tail end of a field, and has certain hysteresis. To solve the problem, embodiments of the present application provide a method, an apparatus, a device, and a system for controlling a startup number of an air conditioning system, so as to improve system efficiency.
Referring to fig. 1, a flowchart of a method for controlling a startup number of an air conditioning system according to an embodiment of the present application is shown. The method can be applied to an air conditioning system comprising at least two air conditioning units, and the system can record the operation parameters of the air conditioning system, such as refrigerating capacity and the like, so that the air conditioning system can be controlled according to the recorded historical data. As shown in fig. 1, the method may include the steps of:
Since there may be large ambient temperature differences at different times of the day, e.g., 8 am and 2 pm, the temperatures typically differ significantly, and the amount of refrigeration required varies accordingly. Therefore, when searching historical data, the refrigerating capacity at the same time has a larger reference value.
Alternatively, the cooling capacity that is the same as the current on-time of the air conditioning system may be expressed as the cooling capacity in the same time period as the current on-time of the air conditioning system. The length of the "time period" can be set according to actual requirements, such as the change rate of the refrigeration requirement and the like. For example, the "period" may be set to 1 hour after the startup time, and if the current startup time of the air conditioning system is 8 am, it is searched from the history data whether there is cooling capacity related data from 8 am to 9 am.
Or, the cooling capacity that is the same as the current opening time of the air conditioning system may also be expressed as the cooling capacity at the same time point as the current opening time of the air conditioning system. For example, if the current on time of the air conditioning system is 8 am, it is searched from the history data whether the cooling capacity of 8 am exists.
In addition, when searching from the historical data, a time limit can be preset, and whether the refrigerating capacity exists in the same time period or not can be searched from the preset time limit. For example, the current starting time of the air conditioning system is 8 am, if the preset period is 3 days, whether the related data of the refrigerating capacity of 8 am to 9 am of yesterday exists is firstly searched, if the related data of the refrigerating capacity of 8 am to 9 am of the previous day does not exist, whether the related data of the refrigerating capacity of 8 am to 9 am of the previous day exists is searched, and if the related data of the refrigerating capacity of 8 am to 9 am of the previous day does not exist yet, whether the related data of the refrigerating capacity of 8 am to 9 am of the previous day exists is searched; if the preset period is 1 day, only searching whether the refrigeration capacity related data of 8 to 9 am of yesterday exists.
Optionally, the refrigeration capacity related data may be refrigeration capacity data directly stored in the historical data, or may be an operation parameter of the air conditioning system. And if the refrigerating capacity related data is the operation parameter of the air conditioning system, calculating the refrigerating capacity in the corresponding time period according to the operation parameter after the operation parameter in the corresponding time period is found.
And step 102, determining the number of the started units according to the refrigerating capacity.
Specifically, the cooling capacity obtained in step 101 may be used as the current required cooling capacity. And then, the number of the units capable of meeting the required refrigerating capacity can be determined according to the rated refrigerating capacity of each unit in the air conditioning system. For example, if the rated cooling capacity of each unit in the air conditioning system is a and the current required cooling capacity is B, the rated cooling capacity is a
As the number of units to be started, among others,
indicating rounding up. For another example, the air conditioning system includes a large unit and a small unit (the rated cooling capacity of the large unit is greater than that of the small unit), the rated cooling capacity of the large unit is C, the rated cooling capacity of the small unit is D, the currently required cooling capacity is B, and if D is D>B, determining to start a small unit; if D is<B<C, determining to start a large unit; if C<B<C + D, determining to start a large unit and a small unit, and the like.
And 103, opening the corresponding number of air conditioning units according to the determined number of the opening units.
Further, if the historical data does not have the refrigerating capacity which is the same as the current starting time of the air conditioning system, the number of the started units can be determined according to the water outlet temperature of the main freezing pipe which is in the historical data and is started at the same time period as the air conditioning system.
If the related data (including the directly stored refrigeration capacity or the operation parameters used for calculating the refrigeration capacity) of the refrigeration capacity in the same time period as the current starting time period of the air conditioning system is not found from the historical data, the water outlet temperature of the main freezing pipe (the main freezing water inlet and outlet pipe) corresponding to the time in the same time period as the current starting time period of the air conditioning system is obtained from the historical data, and therefore the number of the units to be started is determined according to the water outlet temperature of the main freezing pipe in the historical data.
In order to facilitate realization, temperature intervals of the outlet water temperatures of the plurality of freezing main pipes and the number of the units to be started corresponding to each temperature interval can be preset, so that when the outlet water temperatures of the freezing main pipes in historical data are obtained, a large amount of calculation is not needed, the number of the units to be started corresponding to the temperature intervals can be determined according to the temperature intervals where the obtained temperatures are located, the calculation time is saved, and the system efficiency is further improved.
In a plurality of preset temperature intervals, the boundary value between every two adjacent temperature intervals can be determined according to the outlet water set temperature of the freezing main pipe, the rated refrigerating capacity of each air conditioning unit and the instantaneous flow of the freezing main pipe, wherein the instantaneous flow can be read from the flow meter.
For example, if the air conditioning system includes 4 units, and the rated cooling capacity of each unit is N, the boundary values t1, t2, and t3 of the temperature interval may be determined according to the following formula:
wherein T represents the freezing main outlet water set temperature, m is the instantaneous flow rate of the freezing main x 103The calculation factor is a constant. The value of T may be set by a user according to refrigeration needs.
The outlet water temperature of the freezing main pipe in the acquired historical data is represented by Z, if Z is less than or equal to t1, the refrigerating capacity of 1 unit can meet the requirement, and the number of the corresponding units to be started is 1; if the Z is more than t1 and less than or equal to t2, the refrigerating capacity of 1 unit cannot meet the requirement, but the refrigerating capacity of 2 units can meet the requirement, and the number of the corresponding units to be started is 2; if the Z is more than t2 and less than or equal to t3, the number of corresponding starting units is 3; if t3 is less than Z, the corresponding number of the starting units is 4.
For another example, the air conditioning system includes 2 large units and 2 small units, the rated cooling capacity of the small unit is N1, and the rated cooling capacity of the large unit is N2, then the boundary values t1, t2, t3, t4 of the temperature interval can be determined according to the following formula:
where T denotes a freezing main set temperature, and m is an instantaneous flow rate of the freezing main × 103And represents a calculation factor.
The outlet water temperature of the freezing main pipe in the obtained historical data is represented by Z, if Z is less than or equal to t1, the refrigerating capacity of 1 small unit can meet the requirement, the number of the corresponding started units is 1, and the type of the unit is a small unit; if the Z is more than t1 and less than or equal to t2, the refrigerating capacity of 1 small unit can not meet the requirement, but the refrigerating capacity of 1 large unit can meet the requirement, the number of the corresponding starting units is 1, and the unit type is a large unit; if the Z is more than t2 and less than or equal to t3, the refrigerating requirement cannot be met by 1 large unit, the number of the corresponding starting units is 2, and the types of the units are large units and small units; if the Z is more than t3 and less than or equal to t4, the number of the corresponding starting units is 2, and the unit type is a large unit; if t4 is less than Z, the corresponding number of the starting machine sets is 2+1, and the machine sets are large machine sets and small machine sets, namely 2 large machine sets and 1 small machine set are started.
Optionally, if the refrigerating capacity in the same time as the current starting time of the air conditioning system is not found from the historical data, and the outlet water temperature of the main refrigerating pipe in the same time as the current starting time of the air conditioning system is not found, the number of units to be started can be determined according to default settings. For example, the default number may be set to 1, that is, when the qualified cooling capacity and the cooling main outlet water temperature are not found in the historical data, 1 unit is started. Further, for the case that the rated cooling capacities of the units in the air conditioning system are not completely the same, the default setting may include the default number and the default unit type corresponding to the default number. For example, for an air conditioning system including large and small units, the default number may be set to be 1, the default unit type is a large unit, and if no referenceable data is found in the historical data, 1 large unit is started.
In addition, when the air conditioning system is started for the first time after being installed, as no historical data exists, the number of the units needing to be started can be judged according to the field condition when debugging personnel carry out debugging operation, or the number of the units needing to be started can be controlled according to default settings.
Since the environment (e.g., ambient temperature, supply water temperature) may be changing, the required cooling capacity may also change. Therefore, when the air conditioning system is started, after a certain number of units are started in the step 104, whether the units need to be added or subtracted can be further determined, so that the refrigerating requirement which may gradually change is met, and the waste of resources is also avoided.
In a possible implementation manner, the load value of each started air conditioning unit may be obtained, and the load value of the unit is compared with a preset load value, so as to determine whether the load of the currently started unit is large and whether a new unit needs to be started. Specifically, if the load value of each unit is greater than or equal to the preset load value, the number of started units is determined to be increased, so that the refrigeration requirements of users are better met, the system efficiency is improved, and the load balance of the units is realized. For example, the load value of the startup unit may be set to 90%, that is, if the load of each started unit is above 90%, the number of started units needs to be increased.
If the air conditioning system comprises units with different rated refrigerating capacities, namely at least one large unit and one small unit, after the number of the units needing to be started is determined to be increased, the type of the unit needing to be started is further determined, namely the large unit or the small unit is started newly. Optionally, if the currently unopened air conditioning unit comprises a small unit, the small unit can be preferentially used as a unit which is opened additionally, and the energy consumption of the system is reduced as much as possible under the conditions of meeting the refrigeration requirement and realizing load balance; if the small units are not included in the currently unopened air conditioning unit, one unit needs to be selected from the unopened large units for opening, and at the moment, the large unit with the shortest running time can be used as a newly opened unit, so that the running times of all units are balanced as much as possible.
Furthermore, after the number of the units needing to be started is determined to be increased, the number of the units which can be used at present can be judged, whether a fault unit or a unit which fails in remote control exists can be judged, and then which unit is started can be selected from the units which can be used normally.
In addition, whether the number of the started units is reduced or not can be determined according to the load value of each started air conditioning unit. Specifically, the engine load reduction value can be determined according to the number of the currently started units, the set engine load addition value and the set deviation value. And if the load value of each unit is less than or equal to the reduced load value, determining to reduce the number of the started units, so that the energy consumption of the system is reduced and the resource waste is avoided under the condition of meeting the refrigeration requirement.
For example, the derated load value may be determined according to the following equation:
Y＝(1-1/(2a+b))X-N
wherein, Y represents the engine load reducing value, a represents the number of the opened large units, b represents the number of the opened small units, X represents the set engine load increasing value, and N represents the set deviation value.
In the air conditioning system with the same rated refrigerating capacity of each unit, when the number of the units needing to be started is determined to be reduced, if only one unit is started at present, the unit is closed, and the corresponding water supply pipeline is closed. In an air conditioning system comprising a large unit and a small unit, when the number of the units to be started is determined to be reduced, if only one large unit is started currently, the large unit is closed and one small unit is started; if only one small unit is opened currently, the small unit is closed, and the corresponding water supply pipeline is closed.
In addition, for smooth and stable operation of the system, a control time interval of adding and subtracting the machine may be set, for example, after the preset time interval is reached, it may be determined whether the current condition of adding or subtracting the machine is satisfied, or after the condition of adding or subtracting the machine is satisfied for a preset time period, the control of adding and subtracting the machine may be performed.
In the embodiment of the application, when the air conditioning system is started, the number of the units which need to be started at present is predicted according to the refrigerating capacity of the historical data at the same time, and the units with the corresponding number are started. Under general conditions, the refrigeration demands at the same time every day are not greatly different, so that compared with the traditional air conditioning system that one unit is started at first when the air conditioning system is started at each time, the scheme of predicting the starting quantity according to historical data in the embodiment of the application is closer to the actual demand, the required refrigeration quantity can be reached quickly, and the system efficiency is improved.
Based on the same technical concept, the embodiment of the application also provides a device for controlling the starting number of the air conditioning system, which is used for realizing the embodiment of the method. The device can be applied to an air conditioning system comprising at least two air conditioning units.
Referring to fig. 2, a schematic structural diagram of a device for controlling the number of starts of an air conditioning system is provided in an embodiment of the present application, and as shown in the drawing, the device may include: an acquisition module 201, a determination module 202 and a start module 203.
The obtaining module 201 is configured to obtain, when an air conditioning system is started, a refrigerating capacity corresponding to a time that is the same as a current starting time of the air conditioning system from historical data according to the current starting time of the air conditioning system;
the determining module 202 is configured to determine the number of started units according to the refrigeration capacity;
the starting module 203 is configured to start the corresponding air conditioning units according to the number of the started units.
In a possible implementation manner, if the cooling capacity is not obtained, the obtaining module 201 is further configured to obtain, according to the current start time of the air conditioning system, an outlet water temperature of the main refrigeration pipe corresponding to the same time as the current start time from historical data;
the determining module 202 is further configured to determine the number of units to be started according to the outlet water temperature of the freezing main pipe.
In a possible implementation manner, the determining module 202, when determining the number of the started units according to the outlet water temperature of the freezing main, is specifically configured to:
determining a target temperature interval in which the outlet water temperature of the freezing main pipe is located according to a plurality of preset temperature intervals;
and determining the number of the started units corresponding to the target temperature interval.
In a possible implementation manner, the boundary value of every two adjacent temperature intervals in the preset multiple temperature intervals is determined according to the set outlet water temperature of the freezing main pipe, the rated refrigerating capacity of each air conditioning unit in the air conditioning system, and the instantaneous flow rate of the freezing main pipe.
In one possible implementation, the determining module 202 is further configured to: and if the historical data does not have the outlet water temperature of the main freezing pipe with the same current starting time as the air conditioning system, determining to start the default number of air conditioning units.
In a possible implementation manner, after the starting module 203 starts the corresponding air conditioning unit according to the number of started units, the determining module 202 is further configured to:
and if the load value of each started air conditioning unit is greater than or equal to the set load value, determining that the requirement for increasing the number of the started units exists.
In a possible implementation manner, if the air conditioning system includes at least two air conditioning units including at least one large unit and at least one small unit, and the rated cooling capacity of the large unit is greater than that of the small unit, the determining module 202 is further configured to, after determining that there is a need to increase the number of started units:
if the air conditioning unit which is not started currently comprises a small unit, taking the small unit as a unit which is started in an increasing mode; or
And if the air conditioning unit which is not started currently comprises the small unit, taking the large unit with the shortest running time as the unit which is started in an increasing mode.
In a possible implementation manner, after the starting module 203 starts the corresponding air conditioning unit according to the number of started units, the determining module 202 is further configured to:
determining a machine load reduction value according to the number of the currently started machine sets, a set machine load adding value and a set deviation value;
and if the load value of each started air conditioning unit is less than or equal to the reduced load value, determining that the requirement for reducing the number of the started units exists.
In a possible implementation manner, when determining the engine load reduction value according to the number of currently started units, the set engine load addition value, and the set deviation value, the determining module 202 is specifically configured to:
determining a reduced engine load value according to the following formula:
Y＝(1-1/(2a+b))X-N
wherein, Y represents the engine load reducing value, a represents the number of the opened large units, b represents the number of the opened small units, X represents the set engine load increasing value, and N represents the set deviation value.
In a possible implementation manner, if the air conditioning system includes at least one large unit and at least one small unit, and the rated cooling capacity of the large unit is greater than that of the small unit, the determining module 202, after determining that there is a need to reduce the number of units that are turned on, is further configured to:
if only one large unit is opened currently, the opened large unit is closed and the small unit is opened; or
If only one small unit is opened currently, the opened small unit and the water supply pipeline are closed.
In a possible implementation manner, the refrigeration capacity corresponding to the time equal to the opening time is the refrigeration capacity in the same time period as the time period of the opening time, or the refrigeration capacity at the same time point as the opening time.
In the embodiment of the application, when the air conditioning system is started, the number of the units which need to be started at present is predicted according to the refrigerating capacity of the historical data at the same time, and the units with the corresponding number are started. Under general conditions, the refrigeration demands at the same time every day are not greatly different, so that compared with the traditional air conditioning system that one unit is started at first when the air conditioning system is started at each time, the scheme of predicting the starting quantity according to historical data in the embodiment of the application is closer to the actual demand, the required refrigeration quantity can be reached quickly, and the system efficiency is improved.
Based on the same technical concept, the embodiment of the application also provides a device for controlling the starting number of the air conditioning system, which is used for realizing the embodiment of the method. The device can be applied to an air conditioning system comprising at least two air conditioning units.
Referring to fig. 3, a schematic structural diagram of an apparatus for controlling the number of air conditioners during startup is provided in the embodiment of the present application, and as shown in the drawing, the apparatus may include: the processor 301 and the memory 302 connected to the processor 301, where the memory 302 is used to store programs, and the processor 301 calls the programs stored in the memory 302 to execute the method for controlling the number of the air conditioning systems started according to any one of the above implementations.
Based on the same technical concept, the embodiment of the application also provides an air conditioning system, and the system comprises at least two air conditioning units and the air conditioning system starting number control equipment in the embodiment.
Based on the same technical concept, an embodiment of the present application further provides a computer-readable storage medium, where computer instructions are stored, and when the instructions are run on a computer, the instructions cause the computer to execute the method for controlling the number of the air conditioning systems started in any one of the above-mentioned implementation manners.
It should be noted that the terms "first", "second", and the like in the description of the embodiments of the present application are used for distinguishing and not to indicate or imply relative importance or precedence. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (14)
1. A method for controlling the starting number of an air conditioning system is characterized by comprising the following steps:
when an air conditioning system is started, according to the current starting time of the air conditioning system, obtaining the refrigerating capacity corresponding to the time which is the same as the starting time from historical data;
determining the number of the started units according to the refrigerating capacity;
and starting the corresponding air conditioning units according to the number of the started units.
2. The method of claim 1, further comprising:
if the refrigerating capacity is not obtained, according to the current starting time of the air conditioning system, obtaining the water outlet temperature of the main freezing pipe corresponding to the same time as the current starting time from historical data;
and determining the number of the started units according to the water outlet temperature of the freezing main pipe.
3. The method of claim 2, wherein determining the number of units to turn on based on the leaving water temperature of the freeze header comprises:
determining a target temperature interval in which the outlet water temperature of the freezing main pipe is located according to a plurality of preset temperature intervals;
and determining the number of the started units corresponding to the target temperature interval.
4. The method of claim 3, wherein the boundary value of each two adjacent temperature intervals of the preset plurality of temperature intervals is determined according to the set outlet water temperature of the freezing main, the rated refrigerating capacity of each air conditioning unit in the air conditioning system and the instantaneous flow rate of the freezing main.
5. The method of claim 2, further comprising:
and if the outlet water temperature of the freezing main pipe is not obtained, the default number of air conditioning units is determined to be started.
6. The method of claim 1, further comprising, after starting the respective air conditioning packs according to the number of started packs:
and if the load value of each started air conditioning unit is greater than or equal to the set load value, determining that the requirement for increasing the number of the started units exists.
7. The method of claim 6, wherein if the air conditioning system includes at least one large unit and at least one small unit, the rated capacity of the large unit being greater than the rated capacity of the small unit, after determining that there is a need to increase the number of units that are turned on, further comprising:
if the air conditioning unit which is not started currently comprises a small unit, taking the small unit as a unit which is started in an increasing mode; or
And if the air conditioning unit which is not started currently does not comprise the small unit, taking the large unit with the shortest running time as the unit which is started in an increasing mode.
8. The method of claim 1, further comprising, after starting the respective air conditioning packs according to the number of started packs:
determining a machine load reduction value according to the number of the currently started machine sets, a set machine load adding value and a set deviation value;
and if the load value of each started air conditioning unit is less than or equal to the reduced load value, determining that the requirement for reducing the number of the started units exists.
9. The method of claim 8, wherein determining the derated load value based on the number of currently started units, the set derated load value, and the set offset value comprises:
determining a reduced engine load value according to the following formula:
Y＝(1-1/(2a+b))X-N
wherein, Y represents the engine load reducing value, a represents the number of the opened large units, b represents the number of the opened small units, X represents the set engine load increasing value, and N represents the set deviation value.
10. The method of claim 8, wherein if the air conditioning system includes at least one large unit and at least one small unit, the rated capacity of the large unit being greater than the rated capacity of the small unit, after determining that there is a need to reduce the number of units that are turned on, further comprising:
if only one large unit is opened currently, the opened large unit is closed, and the small unit is opened; or
If only one small unit is opened currently, the opened small unit and the water supply pipeline are closed.
11. The method according to claim 1, wherein the refrigeration capacity corresponding to the same time as the opening time is the refrigeration capacity in the same time period as the opening time, or the refrigeration capacity at the same time point as the opening time.
12. An air conditioning system startup number control device, comprising:
the system comprises an acquisition module, a storage module and a control module, wherein the acquisition module is used for acquiring refrigerating capacity corresponding to the same time as the starting time from historical data according to the current starting time of the air conditioning system when the air conditioning system is started;
the determining module is used for determining the number of the started units according to the refrigerating capacity;
and the starting module is used for starting the corresponding air conditioning units according to the number of the started units.
13. An air conditioning system startup number control device, characterized by comprising: a processor and a memory coupled to the processor, the memory for storing a program, the processor calling the program stored in the memory to perform the method of any of claims 1-8.
14. An air conditioning system characterized by comprising at least two air conditioning units and the air conditioning system turn-on number control apparatus according to claim 13.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113552912A (en) * | 2021-08-12 | 2021-10-26 | 上海泰礼实业有限公司 | Temperature adjusting method for thermal engineering laboratory |
| CN113847711A (en) * | 2021-09-13 | 2021-12-28 | 悉地（北京）国际建筑设计顾问有限公司 | Air conditioner control method and device and air conditioner system |
| CN114279075A (en) * | 2021-12-29 | 2022-04-05 | 博锐尚格科技股份有限公司 | Cold station startup control method and device |
| CN116628464A (en) * | 2023-04-24 | 2023-08-22 | 深圳市德骜数据有限公司 | Energy-saving control method, device and equipment for data center machine room and readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1796884A (en) * | 2004-12-30 | 2006-07-05 | 杭州华碧能源科技有限公司 | On site control device for cold water main unit in energy saving control system of central air conditioner |
| JP2007071405A (en) * | 2005-09-02 | 2007-03-22 | Daikin Ind Ltd | Air conditioning unit management system |
| CN102821581A (en) * | 2011-06-08 | 2012-12-12 | 上海启电信息科技有限公司 | Energy saving method for communication machine room |
| CN106403207A (en) * | 2016-10-24 | 2017-02-15 | 珠海格力电器股份有限公司 | Control system and control method based on load prediction for heating, ventilation and air conditioning system |
| CN107655175A (en) * | 2017-10-28 | 2018-02-02 | 深圳市华科科技有限公司 | A kind of central air-conditioning group control energy-saving intelligence control system |
-
2020
- 2020-08-31 CN CN202010897793.7A patent/CN112050346A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1796884A (en) * | 2004-12-30 | 2006-07-05 | 杭州华碧能源科技有限公司 | On site control device for cold water main unit in energy saving control system of central air conditioner |
| JP2007071405A (en) * | 2005-09-02 | 2007-03-22 | Daikin Ind Ltd | Air conditioning unit management system |
| CN102821581A (en) * | 2011-06-08 | 2012-12-12 | 上海启电信息科技有限公司 | Energy saving method for communication machine room |
| CN106403207A (en) * | 2016-10-24 | 2017-02-15 | 珠海格力电器股份有限公司 | Control system and control method based on load prediction for heating, ventilation and air conditioning system |
| CN107655175A (en) * | 2017-10-28 | 2018-02-02 | 深圳市华科科技有限公司 | A kind of central air-conditioning group control energy-saving intelligence control system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113552912A (en) * | 2021-08-12 | 2021-10-26 | 上海泰礼实业有限公司 | Temperature adjusting method for thermal engineering laboratory |
| CN113847711A (en) * | 2021-09-13 | 2021-12-28 | 悉地（北京）国际建筑设计顾问有限公司 | Air conditioner control method and device and air conditioner system |
| CN114279075A (en) * | 2021-12-29 | 2022-04-05 | 博锐尚格科技股份有限公司 | Cold station startup control method and device |
| CN114279075B (en) * | 2021-12-29 | 2023-02-10 | 博锐尚格科技股份有限公司 | Cold station startup control method and device |
| CN116628464A (en) * | 2023-04-24 | 2023-08-22 | 深圳市德骜数据有限公司 | Energy-saving control method, device and equipment for data center machine room and readable storage medium |
| CN116628464B (en) * | 2023-04-24 | 2024-03-29 | 深圳市德骜数据有限公司 | Energy-saving control method, device and equipment for data center machine room and readable storage medium |
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