CN110686364A - Air conditioner control method and device and computer readable storage medium - Google Patents
Air conditioner control method and device and computer readable storage medium Download PDFInfo
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- CN110686364A CN110686364A CN201910997415.3A CN201910997415A CN110686364A CN 110686364 A CN110686364 A CN 110686364A CN 201910997415 A CN201910997415 A CN 201910997415A CN 110686364 A CN110686364 A CN 110686364A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner control method, which comprises the following steps: when a compressor of the air-cooled heat pump cold and hot water unit stops running, acquiring a first return water temperature of the air-cooled heat pump cold and hot water unit; acquiring a second return water temperature of the air-cooled heat pump cold and hot water unit after a preset time; and if the compressor does not meet the preset starting condition based on the second return water temperature, adjusting the running frequency of the water pump in the central air conditioner based on the first return water temperature and the second return water temperature. The invention also discloses an air conditioner control device and a computer readable storage medium. The invention adjusts the running frequency of the water pump according to the return water temperature so as to ensure that the water pump runs at a proper frequency, thereby reducing the energy consumption of the water pump on the premise of ensuring the use comfort of users.
Description
Technical Field
The present invention relates to the field of air conditioning technologies, and in particular, to an air conditioning control method and apparatus, and a computer-readable storage medium.
Background
At present, in a central air conditioner provided with an air-cooled heat pump cold and hot water unit, the air-cooled heat pump cold and hot water unit absorbs low-grade heat energy in air, the low-grade heat energy is converted into high-grade heat energy through heat pump circulation, a refrigerant side pushes the refrigerant circulation through a compressor, and a water side pushes the circulation through a circulating water pump. At present, for an air-cooled heat pump water chiller-heater unit, the control mode of a common water side circulating water pump is as follows: when the water pump is in the starting state, the water pump continuously operates. The main machine of the air-cooled heat pump cold and hot water unit is in a starting state, and the two conditions are as follows: the first one is: the total water outlet temperature of the air-cooled heat pump cold and hot water unit does not reach the set value of the unit, and at the moment, a compressor of the air-cooled heat pump cold and hot water unit is in a working state; and the second mode is that the outlet water temperature of the air-cooled heat pump cold and hot water unit reaches a set value, and at the moment, a compressor of the air-cooled heat pump cold and hot water unit is in a standby state.
In the second case, the circulating water pump of the central air conditioner is usually operated at a fixed frequency, so that a large amount of electricity is consumed when the water pump is continuously operated at a high output, which causes an increase in the operation energy consumption of the water pump, resulting in a waste of power resources.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an air conditioner control method, an air conditioner control device and a computer readable storage medium, and aims to solve the technical problem of high energy consumption caused by the fact that a water pump continuously keeps high output when a compressor of an air-cooled heat pump cold and hot water unit is in a standby state.
In order to achieve the above object, the present invention provides an air conditioner control method, which is applied to a central air conditioner provided with an air-cooled heat pump cold and hot water unit, and comprises the following steps:
when a compressor of the air-cooled heat pump cold and hot water unit stops running, acquiring a first return water temperature of the air-cooled heat pump cold and hot water unit;
acquiring a second return water temperature of the air-cooled heat pump cold and hot water unit after a preset time;
and if the compressor does not meet the preset starting condition based on the second return water temperature, adjusting the running frequency of the water pump in the central air conditioner based on the first return water temperature and the second return water temperature.
Further, in an embodiment, the step of adjusting the operating frequency of the water pump in the air-cooled heat pump chiller-heater unit based on the first return water temperature and the second return water temperature includes:
determining a target operating frequency of the water pump based on the first return water temperature and the second return water temperature;
adjusting an operating frequency of the water pump based on the target operating frequency.
Further, in an embodiment, the step of determining the target operating frequency of the water pump based on the first return water temperature and the second return water temperature includes:
calculating a temperature difference between the first return water temperature and the second return water temperature;
determining a target temperature interval corresponding to the temperature difference, and acquiring a frequency correction value corresponding to the target temperature interval;
and determining the current frequency of the water pump and the frequency correction value, and determining the target operating frequency.
Further, in an embodiment, the step of adjusting the operating frequency of the water pump based on the target operating frequency comprises:
when the frequency correction value is larger than zero, judging whether the target running frequency is larger than the maximum running frequency of the water pump;
if the target running frequency is greater than the maximum running frequency, controlling the water pump to run according to the maximum running frequency;
and if the target operation frequency is less than or equal to the maximum operation frequency, controlling the water pump to operate according to the target operation frequency.
Further, in an embodiment, the step of adjusting the operating frequency of the water pump based on the target operating frequency comprises:
when the frequency correction value is less than zero, judging whether the target running frequency is less than the minimum running frequency of the water pump;
if the target operation frequency is less than the minimum operation frequency, controlling the water pump to operate according to the minimum operation frequency;
and if the target operation frequency is greater than or equal to the minimum operation frequency, controlling the water pump to operate according to the target operation frequency.
Further, in an embodiment, before the step of obtaining the first return water temperature of the air-cooled heat pump chiller-heater unit when the compressor of the air-cooled heat pump chiller-heater unit stops operating, the air-conditioning control method further includes:
when the current outlet water temperature of the air-cooled heat pump cold and hot water unit reaches a set temperature, storing the current initial operating frequency of the water pump
And controlling the compressor to stop running and controlling the water pump to run according to a preset frequency.
Further, in an embodiment, after the step of obtaining the second return water temperature of the air-cooled heat pump chiller-heater unit after the preset time period, the air-conditioner control method further includes:
and if the compressor meets the preset starting condition based on the second return water temperature, starting the compressor, and controlling the water pump to operate according to the initial operating frequency.
Further, in an embodiment, after the step of adjusting the operating frequency of the water pump in the air-cooled heat pump chiller-heater unit based on the first return water temperature and the second return water temperature, the air-conditioning control method further includes:
and taking the second return water temperature as the first return water temperature, and continuously executing the step of obtaining the second return water temperature of the air-cooled heat pump cold and hot water unit after the preset time length is obtained.
Further, to achieve the above object, the present invention also provides an air conditioning control device including: the air conditioner control method comprises a memory, a processor and an air conditioner control program which is stored on the memory and can run on the processor, wherein the air conditioner control program realizes the steps of the air conditioner control method when being executed by the processor.
Further, to achieve the above object, the present invention also provides a computer readable storage medium having stored thereon an air conditioning control program, which when executed by a processor, implements the steps of the aforementioned air conditioning control method.
According to the invention, when the compressor of the air-cooled heat pump cold and hot water unit stops operating, the first return water temperature of the air-cooled heat pump cold and hot water unit is obtained, then the second return water temperature of the air-cooled heat pump cold and hot water unit is obtained after the preset time is obtained, then if the compressor is determined to not meet the preset starting condition based on the second return water temperature, the operating frequency of the water pump in the central air conditioner is adjusted based on the first return water temperature and the second return water temperature, the operating frequency of the water pump is adjusted according to the return water temperature, so that the water pump operates at a proper frequency, and the energy consumption of the water pump is reduced on the premise of ensuring the use comfort. .
Drawings
Fig. 1 is a schematic structural diagram of an air conditioning control device in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a first embodiment of an air conditioning control method according to the present invention;
FIG. 3 is a schematic structural diagram of an air-cooled heat pump chiller-heater unit according to the present invention;
FIG. 4 is a schematic diagram showing the relationship between the temperature difference and the frequency of the water pump according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of an air conditioning control device according to an embodiment of the present invention.
As shown in fig. 1, the air conditioning control apparatus may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the air conditioner control device may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like.
It will be understood by those skilled in the art that the configuration of the climate control device illustrated in fig. 1 does not constitute a limitation of the climate control device and may include more or fewer components than those illustrated, or some components in combination, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and an air conditioner control program.
In the air conditioner control device shown in fig. 1, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be used to call an air conditioning control program stored in the memory 1005.
In the present embodiment, the air conditioning control device includes: the air conditioner control system comprises a memory 1005, a processor 1001 and an air conditioner control program which is stored on the memory 1005 and can run on the processor 1001, wherein when the processor 1001 calls the air conditioner control program stored in the memory 1005, the following operations are executed:
when a compressor of the air-cooled heat pump cold and hot water unit stops running, acquiring a first return water temperature of the air-cooled heat pump cold and hot water unit;
acquiring a second return water temperature of the air-cooled heat pump cold and hot water unit after a preset time;
and if the compressor does not meet the preset starting condition based on the second return water temperature, adjusting the running frequency of the water pump in the central air conditioner based on the first return water temperature and the second return water temperature.
Further, the processor 1001 may call the air conditioner control program stored in the memory 1005, and also perform the following operations:
determining a target operating frequency of the water pump based on the first return water temperature and the second return water temperature;
adjusting an operating frequency of the water pump based on the target operating frequency.
Further, the processor 1001 may call the air conditioner control program stored in the memory 1005, and also perform the following operations:
calculating a temperature difference between the first return water temperature and the second return water temperature;
determining a target temperature interval corresponding to the temperature difference, and acquiring a frequency correction value corresponding to the target temperature interval;
and determining the current frequency of the water pump and the frequency correction value, and determining the target operating frequency.
Further, the processor 1001 may call the air conditioner control program stored in the memory 1005, and also perform the following operations:
when the frequency correction value is larger than zero, judging whether the target running frequency is larger than the maximum running frequency of the water pump;
if the target running frequency is greater than the maximum running frequency, controlling the water pump to run according to the maximum running frequency;
and if the target operation frequency is less than or equal to the maximum operation frequency, controlling the water pump to operate according to the target operation frequency.
Further, the processor 1001 may call the air conditioner control program stored in the memory 1005, and also perform the following operations:
when the frequency correction value is less than zero, judging whether the target running frequency is less than the minimum running frequency of the water pump;
if the target operation frequency is less than the minimum operation frequency, controlling the water pump to operate according to the minimum operation frequency;
and if the target operation frequency is greater than or equal to the minimum operation frequency, controlling the water pump to operate according to the target operation frequency.
Further, the processor 1001 may call the air conditioner control program stored in the memory 1005, and also perform the following operations:
when the current outlet water temperature of the air-cooled heat pump cold and hot water unit reaches a set temperature, storing the current initial operating frequency of the water pump
And controlling the compressor to stop running and controlling the water pump to run according to a preset frequency.
Further, the processor 1001 may call the air conditioner control program stored in the memory 1005, and also perform the following operations:
and if the compressor meets the preset starting condition based on the second return water temperature, starting the compressor, and controlling the water pump to operate according to the initial operating frequency.
Further, the processor 1001 may call the air conditioner control program stored in the memory 1005, and also perform the following operations:
and taking the second return water temperature as the first return water temperature, and continuously executing the step of obtaining the second return water temperature of the air-cooled heat pump cold and hot water unit after the preset time length is obtained.
The invention also provides an air conditioner control method, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the air conditioner control method of the invention.
In this embodiment, the air conditioner control method is applied to a central air conditioner provided with an air-cooled heat pump chiller-heater unit, and referring to fig. 3, the central air conditioner includes an air-cooled heat pump chiller-heater unit 1, a controller 2, an inlet water temperature sensor 3, an outlet water temperature sensor 4, and a water pump 5. The air-cooled heat pump cold and hot water unit comprises an air-cooled heat pump cold and hot water unit, a water inlet temperature sensor 3, a water outlet temperature sensor 4, a controller 2 and a water pump 5, wherein the water inlet temperature sensor 3 is positioned on a water inlet pipe of the air-cooled heat pump cold and hot water unit and is used for detecting the water inlet temperature of the air-cooled heat pump cold and hot water unit, the water outlet temperature sensor 4 is positioned on a water outlet pipe of the air-cooled heat pump cold and hot water unit and is used for detecting the.
The air conditioner control method comprises the following steps:
step S100, when a compressor of the air-cooled heat pump cold and hot water unit stops running, acquiring a first return water temperature of the air-cooled heat pump cold and hot water unit;
in this embodiment, when the central air conditioner is started, the compressor and the water pump of the air-cooled heat pump chiller-heater unit are simultaneously started, the outlet temperature of the refrigerant in the outlet pipe of the air-cooled heat pump chiller-heater unit is raised and started through the compressor and the water pump, and the outlet temperature is monitored in real time through the outlet temperature sensor 4.
If the current outlet water temperature of the air-cooled heat pump cold and hot water unit reaches the set temperature, the compressor is controlled to stop running, the water pump is controlled to run according to the preset frequency, meanwhile, the first return water temperature of the air-cooled heat pump cold and hot water unit is obtained, namely the first return water temperature is obtained through the detection result of the inlet water temperature sensor 3.
The preset frequency can be reasonably set according to the rated frequency of the water pump of the central air conditioner, for example, the preset frequency can be set to be 50% of the rated frequency of the water pump, and the like.
Step S200, acquiring a second return water temperature of the air-cooled heat pump cold and hot water unit after a preset time;
in this embodiment, when the first return water temperature is obtained, the second return water temperature of the air-cooled heat pump water chiller-heater unit after the preset time period is obtained, that is, when the duration after the current time reaches the preset time period, the second return water temperature is obtained according to the current detection result of the water inlet temperature sensor 3.
And step S300, if the compressor is determined not to meet the preset starting condition based on the second return water temperature, adjusting the running frequency of the water pump in the central air conditioner based on the first return water temperature and the second return water temperature.
In this embodiment, when the second return water temperature is obtained, it is determined whether the compressor meets the preset starting condition based on the second return water temperature, specifically, it is determined whether the second return water temperature is less than the preset starting temperature corresponding to the preset starting condition of the compressor, if the second return water temperature is less than the preset starting temperature, it is determined that the compressor meets the preset starting condition, otherwise, it is determined that the compressor does not meet the preset starting condition.
Then, if the compressor is determined to not meet the preset starting condition based on the second return water temperature, the running frequency of the water pump in the central air conditioner is adjusted based on the first return water temperature and the second return water temperature, and then the running frequency of the water pump is adjusted, so that the water pump runs at a proper frequency, and the energy consumption of the water pump is reduced on the premise of ensuring the use comfort of a user.
Further, in an embodiment, after the step S300, the method further includes:
and taking the second return water temperature as the first return water temperature, and continuously executing the step of obtaining the second return water temperature of the air-cooled heat pump cold and hot water unit after the preset time length is obtained.
In the embodiment, the return water temperature of the air-cooled heat pump cold and hot water unit is obtained at regular time, so that the running frequency of the water pump is adjusted at regular time, the water pump runs at a proper frequency, and the energy consumption of the water pump is further reduced.
It can be understood that whether the compressor meets the preset starting condition may also be determined according to the current outlet water temperature of the air-cooled heat pump chiller-heater unit, specifically, if the current outlet water temperature of the air-cooled heat pump chiller-heater unit is less than the set temperature, it is determined that the compressor meets the preset starting condition, otherwise, it is determined that the compressor does not meet the preset starting condition, that is, step S300 may be replaced with adjusting the operating frequency of the water pump in the central air conditioner based on the first return water temperature and the second return water temperature if the current outlet water temperature of the air-cooled heat pump chiller-heater unit is greater than or equal to the set temperature.
According to the air conditioner control method provided by the embodiment, the first return water temperature of the air-cooled heat pump cold and hot water unit is obtained when the compressor of the air-cooled heat pump cold and hot water unit stops operating, then the second return water temperature of the air-cooled heat pump cold and hot water unit is obtained after the preset duration, then if the compressor is determined to not meet the preset starting condition based on the second return water temperature, the operating frequency of the water pump in the central air conditioner is adjusted based on the first return water temperature and the second return water temperature, the operating frequency of the water pump is adjusted according to the return water temperature, so that the water pump operates at a proper frequency, and the energy consumption of the water pump is reduced on the premise of ensuring the use comfort of.
A second embodiment of the air conditioner control method of the present invention is proposed based on the first embodiment, and in this embodiment, step S300 includes:
step S310, determining a target operation frequency of the water pump based on the first return water temperature and the second return water temperature;
and step S320, adjusting the operating frequency of the water pump based on the target operating frequency.
In this embodiment, when it is determined that the compressor does not meet the preset starting condition based on the second return water temperature, the first return water temperature and the second return water temperature determine the target operating frequency of the water pump, specifically, a temperature difference between the first return water temperature and the second return water temperature may be calculated first, the target operating frequency of the water pump is determined according to the temperature difference, and then the operating frequency of the water pump is adjusted according to the target operating frequency, so as to accurately adjust the operating frequency of the water pump according to the return water temperature.
Further, in an embodiment, step S310 includes:
step S311, calculating a temperature difference between the first return water temperature and the second return water temperature;
step S312, determining a target temperature interval corresponding to the temperature difference, and acquiring a frequency correction value corresponding to the target temperature interval;
and step 313, determining the current frequency of the water pump and the frequency correction value, and determining the target operation frequency.
In this embodiment, when it is determined that the compressor does not satisfy the preset starting condition based on the second return water temperature, a temperature difference between the first return water temperature and the second return water temperature is calculated, where the temperature difference is obtained by subtracting the second return water temperature from the first return water temperature.
And then, determining a target temperature interval corresponding to the temperature difference, and acquiring a frequency correction value corresponding to the target temperature interval, wherein the central air conditioner stores a mapping relation between a plurality of preset temperature intervals and the frequency correction value, when the temperature difference is obtained, determining the preset temperature interval to which the temperature difference belongs, namely the target temperature interval, in the plurality of preset temperature intervals, and then acquiring the frequency correction value corresponding to the preset temperature interval to which the temperature difference belongs.
Next, a current frequency of the water pump and a frequency correction value are determined, and a target operating frequency is determined, specifically, the target operating frequency is the sum of the current frequency of the water pump and the frequency correction value, as shown in fig. 4, the frequency correction value includes a plurality of conditions that are greater than zero, equal to zero, and less than zero, and further, the target operating frequency includes a plurality of conditions that are greater than the current frequency of the water pump, equal to the current frequency of the water pump, and less than the current frequency of the water pump. In fig. 4, Δ T is a temperature difference, and T1, T2, T3, and T4 may be appropriately set, for example, T1, T2, T3, and T4 are sequentially set to-3 ℃, -1 ℃, and 3 ℃, and frequency correction values a and b are appropriately set according to the rated frequency of the water pump.
Further, in another embodiment, step S320 includes:
step S321, when the frequency correction value is greater than zero, judging whether the target running frequency is greater than the maximum running frequency of the water pump;
step S322, if the target running frequency is greater than the maximum running frequency, controlling the water pump to run according to the maximum running frequency;
and step S323, if the target operation frequency is less than or equal to the maximum operation frequency, controlling the water pump to operate according to the target operation frequency.
In this embodiment, when the frequency correction value is greater than zero, that is, when the target operating frequency is greater than the current frequency of the water pump, it is determined whether the target operating frequency is greater than the maximum operating frequency of the water pump, if so, the water pump is controlled to operate according to the maximum operating frequency, otherwise, the water pump is controlled to operate according to the target operating frequency, so as to prevent the operating frequency of the water pump from exceeding the maximum operating frequency and affecting the service life of the water pump. The maximum operating frequency is a maximum operating frequency at which the water pump normally operates, and may be a rated frequency of the water pump, for example.
Further, in another embodiment, step S320 includes:
step S324, when the frequency correction value is less than zero, judging whether the target running frequency is less than the minimum running frequency of the water pump;
step S325, if the target running frequency is less than the minimum running frequency, controlling the water pump to run according to the minimum running frequency;
and step S326, if the target operating frequency is greater than or equal to the minimum operating frequency, controlling the water pump to operate according to the target operating frequency.
In this embodiment, when the frequency correction value is less than zero, that is, when the target operating frequency is less than the current frequency of the water pump, it is determined whether the target operating frequency is less than the minimum operating frequency of the water pump, if so, the water pump is controlled to operate according to the minimum operating frequency, otherwise, the water pump is controlled to operate according to the target operating frequency, so as to prevent the operating frequency of the water pump from being lower than the minimum operating frequency and affecting the service life of the water pump. Wherein, the minimum operating frequency is the minimum operating frequency when the water pump normally operates.
According to the air conditioner control method provided by the embodiment, the target operation frequency of the water pump is determined based on the first return water temperature and the second return water temperature, then the operation frequency of the water pump is adjusted based on the target operation frequency, and the operation frequency of the water pump can be accurately adjusted according to the return water temperature, so that the frequency adjustment accuracy of the water pump is improved.
Based on the first embodiment, a third embodiment of the air conditioning control method of the present invention is proposed, in this embodiment, before step S100, the air conditioning control method includes:
step S400, when the current outlet water temperature of the air-cooled heat pump cold and hot water unit reaches a set temperature, storing the current initial operating frequency of the water pump
And S500, controlling the compressor to stop running and controlling the water pump to run according to a preset frequency.
In this embodiment, when the central air conditioner is started, the compressor and the water pump of the air-cooled heat pump chiller-heater unit are simultaneously started, the outlet temperature of the refrigerant in the outlet pipe of the air-cooled heat pump chiller-heater unit is raised and started through the compressor and the water pump, and the outlet temperature is monitored in real time through the outlet temperature sensor 4. If the current outlet water temperature of the air-cooled heat pump cold and hot water unit reaches the set temperature, storing the current initial operation frequency of the water pump, controlling the compressor to stop operating, and controlling the water pump to operate according to the preset frequency.
Further, in an embodiment, after step S200, the air conditioning control method includes:
and if the compressor meets the preset starting condition based on the second return water temperature, starting the compressor, and controlling the water pump to operate according to the initial operating frequency.
In this embodiment, when it is determined that the compressor meets the preset starting condition based on the second return water temperature, that is, whether the second return water temperature is lower than the preset starting temperature corresponding to the preset starting condition of the compressor, the compressor is started, and the water pump is controlled to operate according to the initial operating frequency, so that the return water temperature of the air-cooled heat pump cold and hot water unit is reduced through the inlet, and the efficiency of the air-cooled heat pump cold and hot water unit is improved.
According to the air conditioner control method provided by the embodiment, when the current outlet temperature of the air-cooled heat pump cold and hot water unit reaches the set temperature, the current initial operating frequency of the water pump is stored, the compressor is controlled to stop operating, the water pump is controlled to operate according to the preset frequency, the current outlet temperature of the air-cooled heat pump cold and hot water unit can reach the set temperature, and the energy consumption of the air-cooled heat pump cold and hot water unit is reduced by turning off the compressor.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where an air-conditioning control program is stored on the computer-readable storage medium, and when executed by a processor, the air-conditioning control program implements the following operations:
when a compressor of the air-cooled heat pump cold and hot water unit stops running, acquiring a first return water temperature of the air-cooled heat pump cold and hot water unit;
acquiring a second return water temperature of the air-cooled heat pump cold and hot water unit after a preset time;
and if the compressor does not meet the preset starting condition based on the second return water temperature, adjusting the running frequency of the water pump in the central air conditioner based on the first return water temperature and the second return water temperature.
Further, the air conditioning control program, when executed by the processor, further performs the following operations:
determining a target operating frequency of the water pump based on the first return water temperature and the second return water temperature;
adjusting an operating frequency of the water pump based on the target operating frequency.
Further, the air conditioning control program, when executed by the processor, further performs the following operations:
calculating a temperature difference between the first return water temperature and the second return water temperature;
determining a target temperature interval corresponding to the temperature difference, and acquiring a frequency correction value corresponding to the target temperature interval;
and determining the current frequency of the water pump and the frequency correction value, and determining the target operating frequency.
Further, the air conditioning control program, when executed by the processor, further performs the following operations:
when the frequency correction value is larger than zero, judging whether the target running frequency is larger than the maximum running frequency of the water pump;
if the target running frequency is greater than the maximum running frequency, controlling the water pump to run according to the maximum running frequency;
and if the target operation frequency is less than or equal to the maximum operation frequency, controlling the water pump to operate according to the target operation frequency.
Further, the air conditioning control program, when executed by the processor, further performs the following operations:
when the frequency correction value is less than zero, judging whether the target running frequency is less than the minimum running frequency of the water pump;
if the target operation frequency is less than the minimum operation frequency, controlling the water pump to operate according to the minimum operation frequency;
and if the target operation frequency is greater than or equal to the minimum operation frequency, controlling the water pump to operate according to the target operation frequency.
Further, the air conditioning control program, when executed by the processor, further performs the following operations:
when the current outlet water temperature of the air-cooled heat pump cold and hot water unit reaches a set temperature, storing the current initial operating frequency of the water pump
And controlling the compressor to stop running and controlling the water pump to run according to a preset frequency.
Further, the air conditioning control program, when executed by the processor, further performs the following operations:
and if the compressor meets the preset starting condition based on the second return water temperature, starting the compressor, and controlling the water pump to operate according to the initial operating frequency.
Further, the air conditioning control program, when executed by the processor, further performs the following operations:
and taking the second return water temperature as the first return water temperature, and continuously executing the step of obtaining the second return water temperature of the air-cooled heat pump cold and hot water unit after the preset time length is obtained.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The air conditioner control method is characterized by being applied to a central air conditioner provided with an air-cooled heat pump cold and hot water unit, and comprising the following steps of:
when a compressor of the air-cooled heat pump cold and hot water unit stops running, acquiring a first return water temperature of the air-cooled heat pump cold and hot water unit;
acquiring a second return water temperature of the air-cooled heat pump cold and hot water unit after a preset time;
and if the compressor does not meet the preset starting condition based on the second return water temperature, adjusting the running frequency of the water pump in the central air conditioner based on the first return water temperature and the second return water temperature.
2. The air conditioning control method of claim 1, wherein the step of adjusting the operating frequency of the water pump in the air-cooled heat pump chiller-heater unit based on the first return water temperature and the second return water temperature comprises:
determining a target operating frequency of the water pump based on the first return water temperature and the second return water temperature;
adjusting an operating frequency of the water pump based on the target operating frequency.
3. The air conditioning control method according to claim 2, wherein the step of determining the target operating frequency of the water pump based on the first return water temperature and the second return water temperature includes:
calculating a temperature difference between the first return water temperature and the second return water temperature;
determining a target temperature interval corresponding to the temperature difference, and acquiring a frequency correction value corresponding to the target temperature interval;
and determining the current frequency of the water pump and the frequency correction value, and determining the target operating frequency.
4. The air conditioning control method according to claim 3, wherein the step of adjusting the operating frequency of the water pump based on the target operating frequency includes:
when the frequency correction value is larger than zero, judging whether the target running frequency is larger than the maximum running frequency of the water pump;
if the target running frequency is greater than the maximum running frequency, controlling the water pump to run according to the maximum running frequency;
and if the target operation frequency is less than or equal to the maximum operation frequency, controlling the water pump to operate according to the target operation frequency.
5. The air conditioning control method according to claim 3, wherein the step of adjusting the operating frequency of the water pump based on the target operating frequency includes:
when the frequency correction value is less than zero, judging whether the target running frequency is less than the minimum running frequency of the water pump;
if the target operation frequency is less than the minimum operation frequency, controlling the water pump to operate according to the minimum operation frequency;
and if the target operation frequency is greater than or equal to the minimum operation frequency, controlling the water pump to operate according to the target operation frequency.
6. The air conditioning control method according to claim 1, wherein before the step of obtaining the first return water temperature of the air-cooled heat pump chiller-heater unit when the compressor of the air-cooled heat pump chiller-heater unit is stopped, the air conditioning control method further comprises:
when the current outlet water temperature of the air-cooled heat pump cold and hot water unit reaches a set temperature, storing the current initial operating frequency of the water pump
And controlling the compressor to stop running and controlling the water pump to run according to a preset frequency.
7. The air conditioning control method according to claim 6, wherein after the step of obtaining the second return water temperature of the air-cooled heat pump chiller-heater unit after the preset time period, the air conditioning control method further comprises:
and if the compressor meets the preset starting condition based on the second return water temperature, starting the compressor, and controlling the water pump to operate according to the initial operating frequency.
8. An air conditioning control method according to any one of claims 1 to 7, wherein after the step of adjusting the operating frequency of the water pump in the air-cooled heat pump chiller-heater unit based on the first return water temperature and the second return water temperature, the air conditioning control method further comprises:
and taking the second return water temperature as the first return water temperature, and continuously executing the step of obtaining the second return water temperature of the air-cooled heat pump cold and hot water unit after the preset time length is obtained.
9. An air conditioning control device characterized by comprising: a memory, a processor and an air conditioning control program stored on the memory and executable on the processor, the air conditioning control program when executed by the processor implementing the steps of the air conditioning control method of any one of claims 1 to 8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon an air-conditioning control program which, when executed by a processor, implements the steps of the air-conditioning control method according to any one of claims 1 to 8.
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Cited By (1)
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